1

Aunt Cathy’s Guide to: Sanford Medical Center 2016

Vitamin K: New Issues in Cardiovascular Health,

Renal Health, Osteoporosis, Diabetes,

Liver & Colon Cancer, and Pregnancy.

Cathy Breedon, PhD, RD, CSP, FADA Aunt Cathy

Clinical/Metabolic Nutrition Specialist and Perinatal/Pediatric Nutrition Specialist

Sanford Medical Center, and UND School of Medicine, Fargo, ND

1. Overview/Summary: Vitamin K Facts and Figures

(All the important useful information is on pp. 1-12)

2. Just References from the Scientific Literature:

Inadequacy of Vitamin K and Contribution to:

I. Cardiovascular Disease and Arterial and Renal Calcinosis

II. Unsafe Variability of Anticoagulation Therapy

III. Osteoporosis and Osteoarthritis and Rheumatoid Arthritis

IV. Liver Cancer and Colorectal Cancer

V. Miscellaneous Health Issues: Non-warfarin-related hemorrhage

Cholestasis Diarrhea Celiac disease

Cystic fibrosis Short bowel syndrome Pregnancy

This is the short form of this paper with just the references at the end. Another

version is available that includes the abstracts of the referenced articles. As always,

this paper is a review of new issues in the scientific literature and not intended to

take the place of your personal health care provider.

In particular, individuals using anticoagulant medications like

Coumadin/warfarin must not make changes in their vitamin K intake without

consulting their physician/PA/NP. A separate paper for health professionals

is available that discusses this issue in more detail.

2

Overview/Summary: Vitamin K Issues

1 Vitamin K has been found to be involved in carboxylation reactions in

various tissues. It is now recognized as playing a critical role in bone health,

growth, diabetes, pregnancy, cardiovascular health, renal health, and certain

cancers, in addition to its well-known role in blood coagulation. Allowing (or

inducing) vitamin K deficiency for any reason is clearly not benign.

2 Foods that are generous in vitamin K1 are also excellent sources of beneficial

antioxidant phytochemicals. This includes lutein, a pigment in leafy greens that

appears to have an additional unique potential benefit in the prevention or the

slowing of the progression of blindness due to macular degeneration. These

foods are also very low in calories and rich in other vitamins and minerals as

well.

However, many Americans eat very few of these foods and as a result,

relative vitamin K inadequacy is not at all uncommon when it is actually

checked. (It is currently only very rarely checked.) The most generous dietary

vitamin K2 sources include bacterially fermented foods. One of the richest is

natto … a strong flavored soy bean product popular in Japan but considerably

less so in the US.

3 Elderly people appear to require a regular intake of vitamin K above the

2001 “Adequate Intake” (AI) level in order to assure adequacy. Note that

the recommended amounts for everyone (AIs, RDI, RDA, etc.) were set at a

time when it was assumed that intestinal bacteria provided about half of one’s

requirements. As this source has been found to be more unreliable than was

thought, it is very reasonable to aim toward an intake that is generous.

People using the drug Coumadin need to discuss this issue with their physician

as described below in #6 and #8 because of a drug/nutrient interaction.

However, except for this well-known drug/nutrient interaction, there is no

upper level of safety for vitamin K and foods rich in vitamin K are rich in

many other nutrients as well.

4 Vitamin K as phylloquinone (K1) and menaquinone (K2) are not toxic,

and for that reason there is no “Upper Limit of Safety” established for this

vitamin. In contrast, menadione (K3) is potentially harmful and it is generally

no longer used as a vitamin K supplement.

3

5 It was previously assumed that about half of a person’s vitamin K requirements

were met via production by intestinal bacteria. It is now clear that healthy

people are in fact MUCH more dependent on vitamin K from foods and/or

supplements to assure adequacy than we thought.

6 Misunderstanding about recommendations for vitamin K intake for

people on anticoagulant therapy has resulted in many people avoiding all

sources of vitamin K (instead of taking in a CONSISTENT but ADEQUATE

amount of vitamin K as recommended by the drug manufacturers.) One result,

for example, is the association seen between anticoagulant use and increased

risk of osteoporosis and cardiac and renal calcification . Initially it was

thought to be due to the drug itself, but it turned out to be related to the far too

common inappropriate excessive restriction of vitamin K.

7 It appears that dangerous VARIABILITY of blood clotting among some

patients taking anticoagulants can be controlled significantly by assuring a

consistent daily intake of an adequate amount of vitamin K. Coagulation

variability is a much greater problem among patients whose usual vitamin K

status is low. Those are the people most greatly affected by fluctuations in

vitamin K content of diet or supplements. Persons with a reliable adequate

intake level are far less affected by additional intake in vitamin K.

8 Vascular calcification, a known cardiovascular risk factor, is another side

effect related to the problem of inducing low vitamin K status in patients on

anticoagulants and among the population at large. Failure to activate the

hormone osteocalcin because of inadequate vitamin K results in failure to move

calcium from the bloodstream into bone. Instead, calcium is deposited

inappropriately in other tissues, such as blood vessel walls and the kidneys.

This results in arteriocalcinosis (an independent risk factor for

cardiovascular disease.) It also results in renal calcinosis because increased

calcium needs to be excreted.

9 Vitamin K inadequacy is now being identified even among healthy

children when vitamin K status is evaluated …however, at present it is only

very rarely evaluated. People with conditions that result in malabsorption

are at very high risk of deficiency. This includes conditions like cystic fibrosis,

poorly controlled celiac disease, Crohn’s disease (inflammatory bowel

disease or IBD,) biliary atresia, short bowel syndrome and intractable

diarrhea.

4

10. Others at particular risk of inadequacy of vitamin K include people using

drugs that interfere with vitamin K such as salicylates (e.g. aspirin) and many

seizure-control medications. Similarly, some renal medications used to bind

phosphate in the intestine (e.g. sevelamer-HCl) can greatly impair vitamin K

absorption. [Metal ion and vitamin adsorption profiles of phosphate binder

ion-exchange resins. Clin Nephrol. 2010 Jan;73(1):30-5.

11. Assuring vitamin K adequacy in pregnant and breast-feeding women is an

important new focus. Vitamin K inadequacy in pregnancy has recently been

identified as a risk factor for pregnancy complications like hyperemesis

gravidarum, pre-eclampsia, intracranial bleeding in the infant, and excessive

blood loss at delivery. Although vitamin K transfer across the placenta is noted

to be poor, relative inadequacy in pregnancy can also contribute to poor nutrient

stores in infants.

Whether more generous maternal stores of vitamin K might enhance the

transfer to the fetus has not been evaluated. The recommendation of the

American Academy of Pediatrics is to provide vitamin K to newborns.

Additionally, breast-fed babies are noted to be at higher risk of inadequacy

apparently for the same reason … low vitamin K content of mother’s milk.

Again, whether relative maternal vitamin K inadequacy is a factor in the

breastmilk vitamin K content has not been evaluated yet. [American

Academy of Pediatrics Policy Statement: Controversies Concerning

Vitamin K and the Newborn. Committee on Fetus and Newborn.

Pediatrics Vol. 112 No. 1 July 2003, pp. 191-192]

12. New roles of vitamin K are being recognized. For example, failure to

activate osteocalcin because of inadequate vitamin K appears to have a negative

effect on energy metabolism, including insulin metabolism. A possible role

of vitamin K inadequacy in diabetes and obesity is just beginning to be

examined. This is in addition to the cardiovascular, bone, and renal health

issues.

13. Assuring vitamin K adequacy appears to be a factor in some aspects in the

prevention or treatment of cancers of the liver, colon/rectum, prostate,

pancreas and ovaries. Other recent areas of investigation include a role of

vitamin K inadequacy in hypertension (high blood pressure) and

inflammatory diseases such as arthritis. Dietary vitamin K appears to have a

role in sulfatide metabolism, myelin structure and behavior functions.

5

14. Big Point:

All of the health concerns described above

are made less severe by the same interventions:

Assure adequacy of vitamin K status for everyone from foods

and/or supplements. (Do not ASSUME adequacy.)

If a person is on the anticoagulant medication Coumadin*, assure

that the vitamin K is administered in a consistent

manner each day and that the physician has approved

any adjustments of vitamin K intake.

Remember that inducing a vitamin K deficiency is common in this

context, makes the drug use more dangerous, and

causes damage to the cardiovascular system, the renal

system, bone health and increases risk of certain

cancers. *Note that many anticoagulants do not involve vitamin K

in their function as Coumadin does, so it makes even less sense to

restrict vitamin K with these medications.

Adjust intake recommendations to compensate for conditions

associated with malabsorption and the effects of aging.

6

Some Vitamin K Facts and Figures

[Food and Nutrition Board, Institute of Medicine. Vitamin K. Dietary Reference Intakes for Vitamin A,

Vitamin K, Arsenic, Boron, Chromium, Copper, Iodine, Iron, Manganese, Molybdenum, Nickel, Silicon,

Vanadium, and Zinc. Washington D.C.: National Academy Press; 2001:162-196. ]

*Older adults [for sure] may benefit from higher regular intakes than

are listed in the Advisable Intakes (AIs.) These were developed with the

assumption that intestinal production of usable vitamin K provided a more

significant amount. Current AIs for other age groups have not been

re-evaluated since the discovery that the intestinal bacterial sources are far

less available than was believed, so it is not just the elderly who may be at

risk. The rest have not been checked yet.

Vitamin K status in the elderly. Curr Opin Clin Nutr Metab Care. 2007 Jan;10(1):20-3.

Adequate Intake (AI) for Vitamin K

Life Stage Age mcg/day

Infants 0-6 months 2.0

Infants 7-12 months 2.5

Children 1-3 years 30

Children 4-13 years 55

Adolescents 14-18 years 75

Adults * 19 years and older Males 120

Females 90

Pregnancy or

Breastfeeding

18 years and younger

75

Pregnancy or

Breastfeeding

19 years and older 90

7

Sources of Vitamin K

Leafy Vegetable Food Sources

Phylloquinone (vitamin K1) is a major dietary form of vitamin K, and the

major food source is leafy green vegetables. Not all green vegetables are good

sources . . . it’s the darker leafy ones that have the most! Additional benefits of these

foods are the extremely low calories and the generous provision of other vitamins

(such as vitamin C and vitamin A as beta carotene) and potent antioxidant

phytochemicals such as lutein.

There are many excellent reasons to include these foods in one’s diet. This is

also true for people using anticoagulation medications like Coumadin (warfarin.) As

described earlier, the goal is to assure both an adequate intake of vitamin K and a

consistent level of intake. No one benefits from vitamin K deficiency.

Food Serving Vitamin K1 (mcg)

Seaweed, dulse dried 100g (3.5 oz) 1700

Kale, raw 1 cup (chopped) 547

Broccoli, cooked 1 cup (chopped) 420

Parsley, raw 1 cup (chopped) 324

Swiss chard, raw 1 cup (chopped) 299

Green tea, dried 1 oz (28 g) 199

Spinach, raw 1 cup (chopped) 120

Leaf lettuce, raw 1 cup (shredded) 118

Iceberg lettuce 1 leaf (20 g) 22

Watercress, raw 1 cup (chopped) 20-85 (various refs)

Pennington, JA. Bowes & Church’s Food Values of Portions Commonly Used,

Ed. 16 Phil: Lippincott Co., 1994

8

Oil Food Sources

Some is available in vegetable oils, but they contribute far less vitamin K than

leafy green vegetables. And, it is fairly impractical and also unwise to suggest that

people attempt to meet their vitamin K requirements by increasing fat intake

substantially.

Additionally, hydrogenation of vegetable oils may decrease the absorption

and biological effect of dietary vitamin K.

(Effects of a hydrogenated form of vitamin K on bone formation and resorption.

Am J Clin Nutr. 2001;74(6):783-790.)

Food Serving: 1 Tblsp Vitamin K1 (mcg)

Soybean oil 26 – 76 (various refs)

Canola oil 20

Mayonnaise

12

Corn oil 0 - 7 (various refs)

Olive oil

8

9

Animal Food Sources:

Fermented Food Sources:

Non-Food Sources: Intestinal Bacteria

Bacteria that normally colonize the large intestine synthesize menaquinones

(vitamin K2), which are active forms of vitamin K. Until recently it was thought

that up to 50% of the human vitamin K requirement might be met by this bacterial

synthesis. Recent research indicates that the contribution of intestinal bacterial

synthesis is much less than previously thought, although the exact contribution

remains unclear.

Most of our menaquinones we actually make ourselves from phylloquinone.

The likelihood is that even healthy people are more dependent on food sources

of vitamin K than we previously believed. Individuals taking chronic antibiotics

are far more dependent on food or supplement sources, of course, because these

“friendly” colonic bacteria are killed by the medication as well.

[Menaquinones, bacteria, and the food supply: the relevance of dairy and fermented food

products to vitamin K requirements. Adv Nutr. 2013 Jul 1;4(4):463-73

The importance of menaquinones in human nutrition. Annu Rev Nutr. 1995;15:399-417.) ]

Food Serving Vitamin K1 (mcg)

Meat 3.5 oz

4

Raw Beef Liver (others less) 3.5 oz

104

Milk 8 oz

10

Egg Yolk 1 large

25

Food Serving Vitamin K2

(mcg)

Natto (fermented soybeans) 1 oz

245

Curd Cheese 1 oz

20

10

Non-Food Sources: Supplements

In the U.S. vitamin K1 is available without a prescription in multivitamin and

other supplements in doses that generally range from 10-120 mcg per dose. Vitamin

K2 supplements are also available now. (PDR for Nutritional Supplements. Montvale: Medical Economics Company, Inc; 2001.)

The amount of vitamin K associated with a decreased risk of hip fracture

in the Framingham Heart Study was about 250 mcg/day. This can be obtained

from a little more than 1/2 cup of chopped broccoli or a large salad of mixed greens

every day. A multivitamin with minerals that provides at least the AI level of

vitamin K would also be an excellent idea, and the label should be checked

closely because vitamin K is notoriously variable between various products.

Many vitamin supplement products contain none because of the earlier

assumptions about the GI bacterial sources providing a significant amount. Some

chewable calcium supplements provide some vitamin K and vitamin D. Again,

check the label. A form of vitamin K2, menatetrenone (MK-4) has been used to treat

osteoporosis in Japan and is currently under study in the U.S National Institutes of

Health. K2 as MK-7 is the form produced in natto.

Many earlier references state that vitamin K inadequacy is extremely unusual

in adults. Testing for vitamin K inadequacy is also generally rare because

inadequacy is assumed to not be a problem. Traditionally testing involves

measuring prothrombin time. However, it appears that this hematological

manifestation of inadequacy may not reflect adequacy of vitamin K for other

functions. For example, newer studies use undercarboxylated osteocalcin or other

measures as a marker of vitamin K inadequacy in bone and cardiovascular

applications in particular.

Vitamin K adequacy has not been in the public health radar … or the radar of

health care professionals. Consider, for example, the mypyramid.gov guidelines*,

which are an effort to help people achieve an advisable intake of all nutrients over

two weeks in 2000 kcals/day. Vitamin K is simply not included in the analysis.

Vitamin D is missing as well. Apparently these nutrients are assumed to be adequate

because “you can make your own.” In the case of vitamin D, this assumed adequacy

11

is now being discarded because of the overwhelming evidence that vitamin D

deficiency is actually a huge but previously unrecognized public health problem. It is

possible that the assumption of vitamin K adequacy may turn out to be similarly

suspect. In any case, with the clear safety of generous vitamin K in normal

circumstances, it would be advisable to simply assure adequacy rather than to

assume it. *(http://www.mypyramid.gov/downloads/sample_menu.pdf)

Vitamin K Nomenclature

Older nomenclature IUPAC (abbreviation)

From Machlin, LJ. Handbook of Vitamins: Nutritional, Biochemical and Clinical

Aspects. New York: Marcel Dekker, Inc.,1984

Toxicity Issues

There is no known toxicity associated with high doses of

phylloquinone (vitamin K1), or menaquinone (vitamin K2) forms of

vitamin K.

No tolerable upper level (UL) of intake of these forms of vitamin K

has been established. [Food and

Nutrition Board, Institute of Medicine. Vitamin K. Dietary Reference Intakes for Vitamin A, Vitamin K,

Arsenic, Boron, Chromium, Copper, Iodine, Iron, Manganese, Molybdenum, Nickel, Silicon, Vanadium,

and Zinc. Washington DC: National Academy Press; 2001:162-196.]

K1 Phylloquinone (K)

K 2(n) Menaquinone-n (MK-n)

K2(4) Menatetrenone (MK-4)

K2(35) Menaquinone-7 (MK-7)

K3 Menadione

12

The same is not true for menadione (vitamin K3) and its derivatives.

Menadione can interfere with the function of glutathione, one of the body's natural

antioxidants, resulting in oxidative damage to cell membranes. Menadione given by

injection has induced liver toxicity, jaundice, and hemolytic anemia (due to the

rupture of red blood cells) in infants, and is no longer used for treatment of vitamin K

deficiency.

Contrary to popular belief, the fat-soluble status of vitamin K does NOT

make it more likely to be toxic than water soluble vitamins.

The toxicity traditionally ascribed somewhat globally to the fat soluble

vitamins is in fact due to the fact that two of them (vitamins A and D) have actual

hormonal messenger roles in the body. For this reason, relative inadequacy or excess

of the active hormonal form of these two vitamins can actually induce metabolic

changes to occur. The other two fat soluble vitamins (E and K) and the water

soluble vitamins (C and the B vitamins) are much less likely to be toxic because they

exert no hormonal influence on tissues.

The fact that a substance dissolves in butter is not a measure of its

potential toxicity, although most of us were taught that it is. This is an

important big change in our understanding

Memory Devices:

I always find it hard to keep these kinds of terms and numbers straight, so I

usually make up a little mnemonic device to help me out.

Here’s the one I use for remembering which form of vitamin K comes from

which source, and which is K1 and which is K2 (Feel free to totally disregard this

section and make up your own.)

Phylloquinone starts with a P … as in “Plants.”

( The vitamin K in leafy greens is Phylloquinone)

I think of the kind made in people’s intestines by bacteria or made in man from

phylloquinone is menaquinone … that is, the kind made “in men.” (The kind

of vitamin K made in men is menaquinone. Women too, of course.)

Because we convert phylloquinone to menaquinone for many of its uses, I think

of phylloquinone (the spinach one) coming first (K1) and menaquinone (the

kind made in man out of K1) as coming along secondarily (K2)

13

References by Topic:

(A version with abstracts of these references is also available.)

Inadequacy of Vitamin K:

(General and interesting: J Nutr. 2014 May;144(5):743-50.

Dietary intake of vitamin K is inversely associated with mortality risk.)

I. Contribution to Cardiovascular Disease: Arterial

Calcinosis, Renal Calcinosis, Diabetes, Inflammation and

Hypertension

2015

Diabetes Metab Res Rev. 2015 Jan;31(1):14-35. Nutrients other than carbohydrates: their

effects on glucose homeostasis in humans.

Thromb Res. 2015 Jan 26. Two enzymes catalyze vitamin K 2,3-epoxide reductase activity

in mouse: VKORC1 is highly expressed in exocrine tissues while VKORC1L1 is

highly expressed in brain.

Thromb Res. 2015 Feb 27. Plasma vitamin K concentrations depend on CYP4F2

polymorphism and influence on anticoagulation in Japanese patients with warfarin

therapy.

Development. 2015 Mar 15;142(6):1095-101. Vitamin K reduces hypermineralisation in

zebrafish models of PXE and GACI.

Atherosclerosis. 2015 Feb 24;240(1):10-16. Prevention of vasculopathy by vitamin K

supplementation: Can we turn fiction into fact?

Transplant Proc. 2015 Mar;47(2):367-72. Nutritional Status in Japanese Renal Transplant

Recipients with Long-term Graft Survival.

Arterioscler Thromb Vasc Biol. 2015 Jan;35(1):237-42. Increased vascular calcification in

patients receiving warfarin.

Nephrol Ther. 2015 Mar 17. The matrix-gla protein awakening may lead to the demise of

vascular calcification.

2014

14

Arterioscler Thromb Vasc Biol. 2014 Jul;34(7):1591-6. Sequence variation in vitamin K

epoxide reductase gene is associated with survival and progressive coronary

calcification in chronic kidney disease.

Endocr Metab Immune Disord Drug Targets. 2014 Nov 10. Vitamins And Type 2 Diabetes

Mellitus.

Med Monatsschr Pharm. 2014 Aug;37(8):284-92; quiz 293-4.Micronutrients in

diabetology: complementary medicine update 2014.

World J Cardiol. 2014 May 26;6(5):216-26. Are there ways to attenuate arterial

calcification and improve cardiovascular outcomes in chronic kidney disease?

Arterioscler Thromb Vasc Biol. 2014 Jul;34(7):1591-6. Sequence variation in vitamin K

epoxide reductase gene is associated with survival and progressive coronary

calcification in chronic kidney disease.

Postgrad Med. 2014 Mar;126(2):54-64. The molecular biology and pathophysiology of

vascular calcification.

Public Health Nutr. 2014 Jan 2:1-9. Evaluating the diet of children at increased risk for type

1 diabetes: first results from the TEENDIAB study.

2013

Eur Rev Med Pharmacol Sci. 2013 Sep;17(18):2433-40.Something more to say about

calcium homeostasis: the role of vitamin K2 in vascular calcification and

osteoporosis.

Trends Mol Med. 2013 Apr;19(4):217-26..Vitamin K-dependent carboxylation of matrix

Gla-protein: a crucial switch to control ectopic mineralization.

Bone. 2013 Dec;57(2):499-508.. Prevention of arterial calcification corrects the low bone

mass phenotype in MGP-deficient mice.

Cardiovasc Diabetol. 2013 Jan 8;12:7. Association between dietary phylloquinone intake &

peripheral metabolic risk markers related to insulin resistance and diabetes in elderly

subjects at high cardiovascular risk.

Diabetes Care. 2013 Nov;36(11):3766-71. Matrix Gla protein species and risk of

cardiovascular events in type 2 diabetic patients.

J Dev Phys Disabil. 2013 Dec 1;25(6). Diet Quality of Overweight and Obese Adults with

Intellectual and

Developmental Disabilities as Measured by the Healthy Eating Index-2005.

Diabetologia. 2013 Sep;56(9):2100-1. The vitamin K-dependent Gla proteins and risk of

type 2 diabetes.

2012

Am J Clin Nutr. 2012 Nov;96(5):1113-8. Dietary phylloquinone intake and risk of type 2

diabetes in elderly subjects at high risk of cardiovascular disease.

15

Clin Experiment Ophthalmol. 2012 Sep-Oct;40(7):743-8. Predictive value of the vitamin K

epoxide reductase complex subunit 1 G-1639A and C1173T single nucleotide

polymorphisms in retinal vein occlusion.

Am J Kidney Dis. 2012 Feb;59(2):186-95. Effect of vitamin K2 supplementation on

functional vitamin K deficiency in hemodialysis patients: a randomized trial

Adv Nutr. 2012 Mar 1;3(2):166-73. The role of vitamin K in soft-tissue calcification.

Ups J Med Sci. 2012 Aug;117(3):336-41. Amelioration of pregnancy-associated

osteoporosis after treatment with vitamin K₂: a report of four patients.

2005-2011

Diabetes Res Clin Pract. 2011 Nov;94(2):236-41Association of VKORC1 -1639 G>A

polymorphism with carotid intima-media thickness in type 2 diabetes mellitus.

Nutr Rev. 2011 Mar;69(3):162-7. Bone quality and vitamin K2 in type 2 diabetes: review of

preclinical and clinical studies.

Nutr Rev. 2010 Jun;68(6):341-54. Role of vitamins and minerals in prevention and

management of type 2

diabetes mellitus.

Diabetes Care. 2010 Aug;33(8):1699-705. Dietary phylloquinone and menaquinones

intakes and risk of type 2 diabetes.

Clin J Am Soc Nephrol. 2010 Feb 4. The circulating inactive form of matrix GLA Protein is

a surrogate marker for vascular calcification in chronic kidney disease: a

preliminary report.

J Nutr Biochem. 2010 Feb 8. Vitamin K suppresses the lipopolysaccharide-induced

expression of inflammatory cytokines in cultured macrophage-like cells via the

inhibition of the activation of nuclear factor kappaB through the repression of

IKKalpha/beta phosphorylation.

Clin J Am Soc Nephrol. 2010 Feb 18 Vitamins K and D status in stages 3-5 chronic kidney

disease.

Kidney Int. 2010 Oct 20. The dualistic role of vitamin D in vascular calcifications.

Clin J Am Soc Nephrol. 2010 Apr;5(4):568-75. The circulating inactive form of matrix gla

protein is a surrogate marker for vascular calcification in chronic kidney disease: a

preliminary report.

Thromb Haemost. 2010 Oct;104(4):811-22. Characterisation and potential diagnostic value

of circulating matrix Gla protein (MGP) species.

Urol Int. 2010 Jul;85(1):94-9. Activity and expression of vitamin K-dependent

gamma-glutamyl carboxylase in patients with calcium oxalate urolithiasis.

Thromb Haemost. 2009 Apr;101(4):706-13. Relation of circulating Matrix Gla-Protein and

anticoagulation status in patients with aortic valve calcification.

Clin J Am Soc Nephrol. 2010 Apr;5(4):590-7 Vitamins K and D status in stages 3-5 chronic

kidney disease

Kidney Int. 2010 Sep 22 Recent progress in the treatment of vascular calcification.

Clin Nephrol. 2010 Jan;73(1):30-5. Metal ion and vitamin adsorption profiles of phosphate

binder ion- exchange resins.

16

Clin Exp Immunol. 2009 Dec 17. Vitamin K(3) attenuates lipopolysaccharide-induced acute lung

injury through inhibition of nuclear factor-kappaB activation. J Mal Vasc. 2009 Apr 2. Origin of the mediacalcosis in kidney failure

Nephrol Dial Transplant. 2009 Jul;24(7):2095-101. Association of kidney function and

uncarboxylated matrix GLA protein: data from the Heart and Soul Study.

J Thromb Haemost. 2009 Feb;101(2):359-66. Uncarboxylated matrix GLA protein (ucMGP) is

associated with coronary artery calcification in haemodialysis patients.

J Thromb Haemost 2009;Sept 28. Warfarin use and the risk of valvular calcification.

Int J Artif Organs. 2009 Feb;32(2):67-74. Coagulation meets calcification: The vitamin K system. J

Bone Miner Res. 2009 Vitamin k and bone: past, present, and future.

Br J Nutr. 2009 Apr 1:1-16 Minerals and vitamins in bone health: the potential value of dietary

enhancement.

Osteoporos Int. 2009 Mar 12Prior treatment with vitamin K(2) significantly improves the efficacy

of risedronate.

J Bone Miner Metab. 2009;27(3):333-40.Short-term menatetrenone therapy increases gamma-

carboxylation of osteocalcin with a moderate increase of bone turnover in postmenopausal

osteoporosis: a randomized prospective study.

Bioorg Med Chem Lett. 2009 Feb 15;19(4):1054-7. Elucidation of the mechanism producing

menaquinone-4 in osteoblastic cells.

J Bone Miner Res. 2009 Jun;24(6):983-91.Vitamin k treatment reduces undercarboxylated

osteocalcin but does not alter bone turnover, density, or geometry in healthy

postmenopausal north american women.

J Mal Vasc. 2009 Apr 2. Origin of the mediacalcosis in kidney failure. Am J Clin Nutr. 2008 Jul;88(1):210-5. Phylloquinone intake, insulin sensitivity, and glycemic status

in men and women.

Thromb Res. 2008;122(3):411-7. High dietary menaquinone intake is associated with reduced

coronary calcification. Effects of the blood coagulation vitamin K as an inhibitor of arterial

calcification.

J Vasc Res. 2008 Apr 10;45(5):427-436. The Circulating Inactive Form of Matrix Gla Protein

(ucMGP) as a Biomarker for Cardiovascular Calcification.

Arterioscler Thromb Vasc Biol. 2008 Apr;28(4):771-6. Vitamin K epoxide reductase complex

subunit 1 (VKORC1) polymorphism and aortic calcification: the Rotterdam Study.

Am J Epidemiol. 2008 Feb 1;167(3):313-20. Vitamin K and vitamin D status: associations with

inflammatory markers in the Framingham Offspring Study.

Clin J Am Soc Nephrol. 2008 May 21. Vitamin K-dependent Proteins, Warfarin, and Vascular

Calcification.

Am J Clin Nutr. 2008 Jul;88(1):210-5. Phylloquinone intake, insulin sensitivity, and glycemic status

in men and women.

Cell Cycle. 2008 Jun;7(11):1575-9. Does the absence of ABCC6 (multidrug resistance protein 6) in

patients with Pseudoxanthoma elasticum prevent the liver from providing sufficient

vitamin K to the periphery?

J Pharm Pharmacol. 2008 Jul;60(7):889-93. Mechanisms underlying the biphasic effect of vitamin

K1 (phylloquinone) on arterial blood pressure.

Curr Opin Lipidol. 2008 Feb;19(1):39-42. Vitamin K intake and atherosclerosis.

J Atheroscler Thromb. 2007 Dec;14(6):317-24. Treatment with vitamin k(2) combined with

bisphosphonates synergistically inhibits calcification in cultured smooth muscle cells.

Nat Clin Pract Nephrol. 2007 Oct;3(10):522-3 Vascular calcification in chronic kidney disease: the

role of vitamin K.

17

Rhinology. 2007 Sep;45(3):208-13. Vitamin D3, vitamin K2, and warfarin regulate bone

metabolism in human paranasal sinus bones.

Thromb Haemost. 2007 Jul;98(1):120-5. Vitamin K: The coagulation vitamin that became

omnipotent.

Exp Anim. 2007 Jul;56(4):273-8. Vitamin K Deficiency of Germfree Mice Caused by Feeding

Standard Purified Diet Sterilized by gamma-Irradiation. .

Nutr Metab Cardiovasc Dis. 2007 Jan;17(1):58-62. Phylloquinone intake and risk of cardiovascular

diseases in men.

Blood. 2006 Nov 30; Regression of warfarin-induced medial elastocalcinosis by high intake of

vitamin K in rats.

Am J Health Syst Pharm. 2005 Aug 1;62(15):1574-81 Vitamin K in the treatment and prevention of

osteoporosis and arterial calcification

Eur J Clin Nutr. 2005 Feb;59(2):196-204 Phylloquinone intake as a marker for coronary heart

disease risk but not stroke in women.

II. Inadequacy of Vitamin K:

Contribution to Unsafe Variability of Anticoagulation Therapy

2011-2015 Arterioscler Thromb Vasc Biol. 2015 Jan;35(1):237-42. Increased vascular calcification in patients

receiving warfarin.

Expert Rev Cardiovasc Ther. 2015 Mar 22:1-7New oral anticoagulants versus vitamin K antagonists

before cardioversion of atrial fibrillation: a meta-analysis of data from 4 randomized trials.

Expert Opin Drug Metab Toxicol. 2015 Mar 22:1-12. Pharmacodynamic profile and drug

interactions with non-vitamin K antagonist oral anticoagulants: implications for patients

with atrial fibrillation.

Drugs R D. 2015 Mar;15(1):155-62..Budget impact analysis of warfarin reversal therapies among

hip fracture patients in Finland.

Thromb Res. 2015 Feb 27. Plasma vitamin K concentrations depend on CYP4F2 polymorphism and

influence on anticoagulation in Japanese patients with warfarin therapy.

Semin Thromb Hemost. 2015 Feb 19 Oral Anticoagulant Drugs and the Risk of Osteoporosis: New

Anticoagulants Better than Old?

Am J Ther. 2014. Warfarin use and prevalence of coronary artery calcification assessed by

multislice computed tomography.

Dtsch Med Wochenschr. 2013 May;138(21):1102-6. Medial calcific sclerosis under long-term

anticoagulation with vitamin K antagonists.

Adv Nutr. 2013 Jul 1;4(4):463-73. Menaquinones, bacteria, and the food supply: the relevance of

dairy and fermented food products to vitamin K requirements.

18

2008-2010 Br J Haematol. 2010 Feb 11. Influence of dietary vitamin K intake on subtherapeutic oral

anticoagulant therapy.

Am J Transl Res. 2009 Jul 15;1(4):381-92.Activated protein C: a potential cardioprotective factor

against ischemic injury during ischemia/reperfusion.

J Manag Care Pharm. 2009 Apr;15(3):244-52. Meta-analysis to assess the quality of warfarin

control in atrial fibrillation patients in the United States.

Blood Coagul Fibrinolysis. 2009 Apr 3. Erythrocyte folate and 5-methyltetrahydrofolate

levels decline during 6 months of oral anticoagulation with warfarin.

J Thromb Haemost. 2009 Dec;7(12):2023-7. Warfarin use and the risk of valvular

calcification.

Hamostaseologie. 2008 Feb;28(1-2):44-50 New insight in therapeutic anticoagulation by Coumarin

Derivatives.

J Thromb Haemost. 2008 Jul;6(7):1226-8. Vitamin K epoxide reductase complex subunit 1

(VKORC1 ) polymorphism influences the anticoagulation response subsequent to vitamin

K intake: a pilot study

Vitam Horm. 2008;78:265-79 Vitamin K and thrombosis.

2004-2007 J Thromb Haemost. 2007 Oct;5(10):2043-8..Daily vitamin K supplementation improves

anticoagulant stability.

Thromb Haemost. 2007 Jul;98(1):120-5. Vitamin K: The coagulation vitamin that became

omnipotent.

INRJ Thromb Thrombolysis. 2007 Feb 24; Prospective study of supplemental vitamin K therapy in

patients on oral anticoagulants with unstable international normalized ratios.

J Am Diet Assoc. 2007 Nov;107(11):2022.Vitamin K: what are the current dietary

recommendations for patients taking coumadin?

Curr Opin Clin Nutr Metab Care. 2007 Jan;10(1):1-5. Dietary vitamin K intake & anticoagulation in

elderly patients.

Blood. 2006 Nov 16 Vitamin K supplementation can improve stability of anticoagulation for

patients with unexplained variability in response to warfarin.

Int J Vitam Nutr Res. 2006 Mar;76(2):65-74. Dietary vitamin K variability affects International

Normalized Ratio (INR) coagulation indices

Pharmacotherapy. 2005 Dec;25(12):1746-51. Low-dose vitamin K to augment anticoagulation

control.

Am J Cardiovasc Drugs. 2004;4(1):43-55. The use of vitamin K in patients on anticoagulant

therapy: a practical guide.

----------------------------------------------

19

III. Inadequacy of Vitamin K:

Contribution to Osteoporosis, Osteoarthritis, Bone Development,

Rheumatoid Arthritis, and Related Conditions

2015 Exp Toxicol Pathol. 2015 Mar 12. Characterization of bone turnover and energy

metabolism in a rat model of primary and secondary osteoporosis.

J Cell Biol. 2015 Mar 16;208(6):761-76. GGCX and VKORC1 inhibit osteocalcin

endocrine functions.

Drugs R D. 2015 Mar;15(1):155-62. Budget impact analysis of warfarin reversal therapies

among hip fracture patients in Finland.

Semin Thromb Hemost. 2015 Feb 19. Oral Anticoagulant Drugs and the Risk of

Osteoporosis: New Anticoagulants Better than Old?

Endocrine. 2015 Jan 20. Effect of 1-year dietary supplementation with vitaminized olive oil

on markers of bone turnover and oxidative stress in healthy post-menopausal

women.

Nutr Res. 2015 Feb;35(2):155-61. Vitamin K3 increased BMD at 1 and 2 months

post-surgery and the maximum stress of the middle femur in the rat.

2014 Glob J Health Sci. 2014 Jul 14;6(6):82-7. Assessment of vitamin K2 levels in osteoporotic

patients: a case control study.

Mol Nutr Food Res. 2014 Aug;58(8):1647-57. Vitamin K and musculoskeletal health in

postmenopausal women.

Clin Nutr. 2014 May 28.. Vitamin K deficiency evaluated by serum levels of

undercarboxylated osteocalcin in patients with anorexia nervosa with bone loss.

Asia Pac J Clin Nutr. 2014;23(2):256-62. Vitamin K nutritional status and

undercarboxylated osteocalcin in postmenopausal osteoporotic women treated with

bisphosphonates.

Nutrients. 2014 May 16;6(5):1971-80. Vitamin K₂ therapy for postmenopausal

osteoporosis.

Clin Interv Aging. 2014;9:121-7. Menatetrenone versus alfacalcidol in the treatment of

Chinese postmenopausal women with osteoporosis: a multicenter, randomized,

double-blinded, double-dummy, positive drug-controlled clinical trial.

Maturitas. 2014 Mar;77(3):294-9. Effects of vitamin K in postmenopausal women: mini

review.

J Bone Miner Metab. 2014 May;32(3):290-7. Effects of risedronate alone or combined with

vitamin K2 on serum undercarboxylated osteocalcin and osteocalcin levels in

postmenopausal osteoporosis.

J Bone Miner Metab. 2014 Mar;32(2):142-50. Low-dose vitamin K2 (MK-4)

supplementation for 12 months improves bone metabolism and prevents forearm

bone loss in postmenopausal Japanese women.

20

Geriatr Gerontol Int. 2014 Jan;14(1):1-7. Vitamin K: novel molecular mechanisms of action

and its roles in osteoporosis.

2013

Akush Ginekol (Sofiia). 2013;52 Suppl 1:43-8.Postmenopausal osteoporosis. Role of

vitamin K in the prevention of osteoporosis.

Asia Pac J Clin Nutr. 2013;22(4):646-54. Effects of gamma-glutamyl carboxylase gene

polymorphism (R325Q) on the association between dietary vitamin K intake and

gamma-carboxylation of osteocalcin in young adults.

J Clin Densitom. 2013 Oct-Dec;16(4):409-13. Vitamin K and bone health.

Eur Rev Med Pharmacol Sci. 2013 Sep;17(18):2433-40.Something more to say about

calcium homeostasis: the role of vitamin K2 in vascular calcification and

osteoporosis.

Osteoporos Int. 2013 Sep;24(9):2499-507. Three-year low-dose menaquinone-7

supplementation helps decrease bone loss in healthy postmenopausal women

Clin Chem Lab Med. 2013 Aug;51(8):1555-61. Trace elements and bone health.

Clin Nutr. 2013 Dec;32(6):983-7. High prevalence of vitamin D deficiency and

osteoporosis in out-patients with intestinal failure.

Endocrinol Nutr. 2013 Apr;60(4):197-210. Update on nutrients involved in maintaining

healthy bone.

Crit Rev Biotechnol. 2013 Sep 18. Vitamin K series: current status and future prospects.

J Clin Biochem Nutr. 2013 Sep;53(2):108-13. Vitamin K1 (phylloquinone) &K2

(menaquinone-4) supplementation improves bone formation in a high-fat

diet-induced obese mice.

Pancreatology. 2013 May-Jun;13(3):238-42. The prevalence of fat-soluble vitamin

deficiencies and a decreased bone mass in patients with chronic pancreatitis.

Crit Rev Biotechnol. 2013 Sep 18. Vitamin K series: current status and future prospects.

PLoS One. 2013 Aug 16;8(8):e71665 Effects of multi-deficiencies-diet on bone parameters

of peripheral bone in ovariectomized mature rat.

Mod Rheumatol. 2013 Sep;23(5):1001-7. Vitamin K2 administration is associated with

decreased disease activity in patients with rheumatoid arthritis.

Rheumatol Int. 2013 Mar;33(3):823-4. Dietetic issues in antiphospholipid syndrome.

2012

Osteoporos Int. 2012 Nov;23(11):2681-92. Vitamin K supplementation for the primary

prevention of osteoporotic fractures: is it cost-effective and is future research

warranted?

Calcif Tissue Int. 2012 Apr;90(4):251-62. Changes in parameters of bone metabolism in

postmenopausal women following a 12-month intervention period using dairy

products enriched with calcium, vitamin D, and phylloquinone (vitamin K(1)) or

menaquinone-7 (vitamin K (2)): the Postmenopausal Health Study II.

Ups J Med Sci. 2012 Aug;117(3):336-41. Amelioration of pregnancy-associated

osteoporosis after treatment with vitamin K₂: a report of four patients.

21

2004-2010 Transplantation. 2010 Feb 27;89(4):458-464. Dietary vitamin K2 supplement improves bone status

after lung and heart transplant.

Proc Nutr Soc. 2010 Feb;69(1):25-33. Session 2:Other diseases: Dietary management of

osteoporosis throughout the life course.

J Bone Miner Metab. 2009 Dec 19. Hop rho iso-alpha acids, berberine, vitamin D(3) and vitamin

K(1) favorably impact biomarkers of bone turnover in postmenopausal women in a

14-week trial.

Clin Calcium. 2009 Dec;19(12):1815-21. Clinical implications of undercarboxylated osteocalcin.

Clin Calcium. 2009 Dec;19(12):1805-14Anti-fracture efficacy of vitamin K.

Clin Calcium. 2009 Dec;19(12):1797-804. Effect of vitamin K on bone material properties.

Clin Calcium. 2009 Dec;19(12):1788-96.Biological effects of vitamin K2 on bone quality.

Clin Calcium. 2009 Dec;19(12):1779-87. In vivo metabolism of vitamin K: in relation to the

conversion of vitamin K1 to MK-4.

Clin Calcium. 2009 Dec;19(12):1770-8.Vitamin K function mediated by activation of steroid and

xenobiotic receptor

Curr Osteoporos Rep. 2009 Dec;7(4):111-7. Osteoporosis prevention and nutrition.

J Orthop Sci. 2009 Nov;14(6):687-92 Association of low dietary vitamin K intake with radiographic

knee osteoarthritis in the Japanese elderly population: dieary survey in a population-based

cohort of the ROAD study.

Nutr Res. 2009 Apr;29(4):221-8. High-dose vitamin K supplementation reduces fracture incidence

in postmenopausal women: a review of the literature.

Br J Nutr. 2009 May 19:1-8. The effect of menaquinone-7 (vitamin K2) supplementation on osteocalcin

carboxylation in healthy prepubertal children.

J Nutr Sci Vitaminol (Tokyo). 2009 Feb;55(1):15-21. Effect of low dose vitamin K2 (MK-4)

supplementation on bio-indices in postmenopausal Japanese women. Calcif Tissue Int. 2008 Aug;83(2):121-8. Effects of vitamin k(2) and risedronate on bone formation

and resorption, osteocyte lacunar system, & porosity in the cortical bone of

glucocorticoidtreated rats.

Ann Rheum Dis. 2008 Jul 14 Vitamin K in hand osteoarthritis: results from a Randomized Clinical

Trial.

Bone. 2008 Aug;43(2):230-7. Uptake of postprandial lipoproteins into bone in vivo: Impact on

osteoblast function.

Br J Nutr. 2008 Feb 18:1-7. Vitamin K status is associated with childhood bone mineral content.

J Bone Miner Metab. 2008;26(3):260-4. Response of serum carboxylated and undercarboxylated

osteocalcin to alendronate monotherapy and combined therapy with vitamin K2 in

postmenopausal women.

Am J Clin Nutr. 2008 May;87(5):1513-20. Vitamin K1 intake is associated with higher bone

mineral density and reduced bone resorption in early postmenopausal Scottish women: no

evidence of gene-nutrient interaction with apolipoprotein E polymorphisms.

J Pharmacol Sci. 2008 Apr;106(4):530-5. Pharmacological topics of bone metabolism: recent

advances in pharmacological management of osteoporosis.

22

Proc Nutr Soc. 2008 May;67(2):163-76.Importance of calcium, vitamin D and vitamin K for

osteoporosis prevention and treatment.

J Biol Regul Homeost Agents. 2008 Jan-Mar;22(1):35-44. Vitamin K and D association stimulates

in vitro osteoblast differentiation of fracture site derived human mesenchymal stem cells.

Arch Pediatr. 2008 Mar;15(3):301-12. Recommendations for the management of bone

demineralization in cystic fibrosis

J Clin Endocrinol Metab. 2008 Apr;93(4):1217-23. Effect of vitamin K supplementation on bone

loss in elderly men and women.

Clin Calcium. 2008 Feb;18(2):224-32. Genomic approaches to bone and joint diseases. New

insights into molecular mechanisms underlying protective effects of vitamin K on bone

health

Eur J Epidemiol. 2008;23(3):219-25. Association of hip fracture incidence and intake of calcium,

magnesium, vitamin D, and vitamin K.

J Cyst Fibros. 2008 Jul;7(4):307-12. Undercarboxylated osteocalcin and bone mass in 8-12 year old

children with cystic fibrosis.

J Nutr. 2008 Jan;138(1):172S-177S. The balance of bone health: tipping the scales in favor of

potassium-rich, bicarbonate-rich foods.

J Bone Miner Metab. 2008;26(1):79-85. Low plasma phylloquinone concentration is associated

with high incidence of vertebral fracture in Japanese women.

J Bone Miner Metab. 2008;26(1):9-12. Steroid and xenobiotic receptor mediates a novel vitamin K2

signaling pathway in osteoblastic cells.

Br J Nutr. 2008 Jan;99(1):198-205. Nutrition and bone health projects funded by the UK Food

Standards Agency: have they helped to inform public health policy?

Clin Exp Rheumatol. 2008 May-Jun;26(3):484-91. Extremes in vitamin K status of bone are related

to bone ultrasound properties in children with juvenile idiopathic arthritis. Mayo Clin Health Lett. 2007 Nov;25(11):4. Vitamin K linked to bone strength.

Pediatr Res. 2007 Mar;61(3):366-70 Pronounced elevation of undercarboxylated osteocalcin in

healthy children.

J Nutr Sci Vitaminol (Tokyo). 2007 Dec;53(6):464-70. Vitamin K content of foods and dietary

vitamin K intake in Japanese young women.

J Nutr Sci Vitaminol (Tokyo). 2007 Oct;53(5):419-25. Nutritional effects of gamma-glutamyl

carboxylase gene polymorphism on the correlation between the vitamin K status and

gamma- carboxylation of osteocalcin in young males. Clin Calcium. 2007

Nov;17(11):1752-60. Experience of vitamin K2 in Thailand

Clin Calcium. 2007 Nov;17(11):1709-16. Clinical application of undercarboxylated osteocalcin

Clin Calcium. 2007 Nov;17(11):1702-8. Measurement of serum undercarboxylated osteocalcin by

ECLIA with the "Picolumi ucOC" kit.

Osteoporos Int. 2007 Jul;18(7):963-72. Vitamin K2 supplementation improves hip bone geometry

and bone strength indices in postmenopausal women.

Int J Cardiol. 2007 Jun 12;118(3):338-44. Fracture risk in users of oral anticoagulants: a nationwide

case-control study.

Thromb Haemost. 2007 Jul;98(1):120-5. Vitamin K: The coagulation vitamin that became

omnipotent.

Curr Rheumatol Rep. 2007 Apr;9(1):85-92. Not just calcium and vitamin D: other nutritional

considerations in osteoporosis.

Curr Opin Clin Nutr Metab Care. 2007 Jan;10(1):20-3. Vitamin K status in the elderly.

Int J Cardiol. 2007 Jun 12;118(3):338-44. Fracture risk in users of oral anticoagulants: a nationwide

case-control study.

Comp Biochem Physiol B Biochem Mol Biol. 2007 May 29; Vitamin K deficiency inhibits miner-

alization & enhances deformity in vertebrae of haddock (Melanogrammus aeglefinus L.)

23

Br J Nutr. 2007 Apr;97(4):661-6. Serum percentage undercarboxylated osteocalcin, a sensitive

measure of vitamin K status, and its relationship to bone health indices in Danish girls.

Exp Anim. 2007 Apr;56(2):103-10. Additive effect of vitamin K2 and risedronate on long bone

mass in hypophysectomized young rats.

J Bone Miner Metab. 2007;25(1):46-53. Effect of vitamin K2 and growth hormone on the long

bones in hypophysectomized young rats: a bone histomorphometry study.

Am J Kidney Dis. 2007 Mar;49(3):432-9. Subclinical vitamin K deficiency in hemodialysis

patients.

J Nutr Sci Vitaminol (Tokyo). 2007 Jun;53(3):219-24. vitamin K2 (menaquinone-4) on intestinal

alkaline phosphatase activity in rats. Curr Drug Saf. 2006 Jan;1(1):87-97Role of vitamin K2 in the treatment of postmenopausal

osteoporosis.

Clin Calcium. 2006 Sep;16(9):106-14 and Nutrition. 2006 Jul-Aug;22(7-8):845-52. (same article

in both journals) Protective effects of vitamin K against osteoporosis and its pleiotropic

actions

J Nutr Sci Vitaminol (Tokyo). 2006 Oct;52(5):307-15. Beneficial effect of pretreatment and

treatment continuation with risedronate and vitamin K2 on cancellous bone loss after

ovariectomy in rats: a bone histomorphometry study.

Arthritis Rheum. 2006 Apr;54(4):1255-61. Low vitamin K status is associated with osteoarthritis in

the hand and knee.

Calcif Tissue Int. 2006 Nov;79(5):318-25. Synergistic effect of vitamin K2 and prostaglandin E2 on

cancellous bone mass in hypophysectomized young rats.

Clin Calcium. 2006 Dec;16(12):2017-25. Present knowledge in nutritional aspects of fracture.

Am J Clin Nutr. 2006 Feb;83(2):380-6. Vitamin K status of healthy Japanese women: age-related

vitamin K requirement for gamma-carboxylation of osteocalcin.

Int J Vitam Nutr Res. 2006 Nov;76(6):385-90. A preliminary assessment of vitamin K1 intakes and

serum undercarboxylated osteocalcin levels in 11-13 year old Irish girls.

Br J Nutr. 2006 May;95(5):982-8 Phylloquinone (vitamin K1) intakes and serum undercarboxylated

osteocalcin levels in Irish postmenopausal women. Am J Health Syst Pharm. 2005 Aug 1;62(15):1574-81 Vitamin K in the treatment and prevention of

osteoporosis and arterial calcification.

Curr Pharm Des. 2004;10(21):2557-76. Effects of vitamin K2 on osteoporosis.

IV. Inadequacy of Vitamin K:

Cancer: Liver, Colorectal, Prostate, Ovarian, Pancreatic and

Cancer Risk in General

2014-2015

Med Hypotheses. 2015 Mar;84(3):219-22. Vitamin K: The missing link to prostate health.

Int J Surg Case Rep. 2015;6C:95-9. Primary colon cancer with a high serum PIVKA-II level.

Biomed Res Int. 2014;2014:340216. Gla-rich protein is a potential new vitamin K target in cancer:

evidences for a direct GRP-mineral interaction.

24

Ultrastruct Pathol. 2014 Apr;38(2):116-40. Synergistic antitumor cytotoxic actions of ascorbate and

menadione on human prostate (DU145) cancer cells in vitro: nucleus and other injuries

preceding cell death by autoschizis.

Biol Blood Marrow Transplant. 2014 Mar;20(3):430-4. Serial profile of vitamins and trace elements

during the acute phase of allogeneic stem cell transplantation.

Clin Colorectal Cancer. 2014 Mar;13(1):62-7. Pilot clinical trial on the efficacy of prophylactic use

of vitamin K1-based cream (Vigorskin) to prevent cetuximab-induced skin rash in patients

with metastatic colorectal cancer.

2012-2013

J Endourol. 2013 Dec;27(12):1499-503. Alternative therapeutic approach to renal-cell carcinoma:

induction of apoptosis with combination of vitamin K3 and D-fraction.

Asian Pac J Cancer Prev. 2013;14(9):5461-5.Menadione (Vitamin K3) induces apoptosis of human

oral cancer cells and reduces their metastatic potential by modulating the expression of

epithelial to mesenchymal transition markers and inhibiting migration.

Toxicology. 2013 Jan 7;303:139-46. Resveratrol inhibits TGF-β1-induced

epithelial-to-mesenchymal transition and suppresses lung cancer invasion and metastasis.

Oncol Rep. 2013 Jun;29(6):2401-7. Curcumin reverses the epithelial-mesenchymal transition of

pacreatic cancer cells by inhibiting the Hedgehog signaling pathway.

Anticancer Res. 2013 May;33(5):1941-50. Quercetin inhibits migration and invasion of SAS human

oral cancer cells through inhibition of NF-κB and matrix metalloproteinase-2/-9 signaling

pathways.

Pharmazie. 2013 Jun;68(6):442-8. Vitamin K4 induces tumor cytotoxicity in human prostate

carcinoma PC-3 cells via the mitochondria-related apoptotic pathway.PLoS One.

2013;8(3):e58082. Postoperative use of the chemopreventive vitamin K2 analog in patients

with hepatocellular carcinoma.

Eur J Dermatol. 2013 Jan-Feb;23(1):77-82. Topical vitamin K1 may not be effective in preventing

acneiform rash during cetuximab treatment in patients with metastatic colorectal cancer.

Toxicol Appl Pharmacol. 2013 Dec 15;273(3):611-22CR108, a novel vitamin K3 derivative induces

apoptosis and breast tumor inhibition by reactive oxygen species and mitochondrial

dysfunction.

PLoS One. 2012;7(12):e52263. Alpha-tocopheryl succinate inhibits autophagic survival of prostate

cancer cells induced by vitamin K3 and ascorbate to trigger cell death.and neck squamous

cell carcinoma in vitro and in vivo.

PLoS One. 2012;7(5):e36418. Berberine induces caspase-independent cell death in colon tumor

cells through activation of apoptosis-inducing factor.

Anticancer Res. 2012 Dec;32(12):5415-20.Effect of menatetrenone, a vitamin k2 analog, on

recurrence of hepatocellular carcinoma after surgical resection: a prospective randomized

controlled trial.

BMC Gastroenterol. 2012 Nov 29;12:170. Role of vitamin K2 in preventing the recurrence of

hepatocellular carcinoma after curative treatment: a meta-analysis of randomized controlled

trials.

Clinics (Sao Paulo). 2012 Sep;67(9):1093-9.Synergistic growth inhibition by sorafenib and vitamin

K2 in human hepatocellular carcinoma cells.

World J Surg Oncol. 2012 Apr 21;10:60. Vitamin K1 enhances sorafenib-induced growth inhibition

and apoptosis of human malignant glioma cells by blocking the Raf/MEK/ERK pathway.

25

J Agric Food Chem. 2012 Aug 29;60(34):8395-403. Black tea polyphenols reverse

epithelial-to-mesenchymal transition and suppress cancer invasion and proteases in human

oral cancer cells.

Biol Pharm Bull. 2012;35(4):617-23.Vitamin K3 analogs induce selective tumor cytotoxicity in

neuroblastoma.

2007-2011

Br J Cancer. 2010 Apr 13;102(8):1224-34. alpha-Tocopheryl succinate promotes selective cell

death induced by vitamin K3 in combination with ascorbate.

Am J Clin Nutr. 2010 Mar 24. Dietary vitamin K intake in relation to cancer incidence and

mortality: results from the Heidelberg cohort of the European Prospective Investigation

into Cancer and Nutrition (EPIC-Heidelberg).

Int J Cancer. 2010 Feb 15;126(4):992-1003. Antioxidant intake from fruits, vegetables and other

sources and risk of non-Hodgkin's lymphoma: the Iowa Women's Health Study.

J Cell Physiol. 2010 Mar 18. Sorafenib combined vitamin K induces apoptosis in human

pancreatic cancer cell lines through RAF/MEK/ERK and c-Jun NH2-terminal kinase

pathways.

Am J Clin Nutr. 2010 Mar 24. Dietary vitamin K intake in relation to cancer incidence and

mortality: results from the Heidelberg cohort of the European Prospective Investigation

into Cancer and Nutrition (EPIC-Heidelberg).

Int J Cancer. 2010 Feb 15;126(4):992-1003. Antioxidant intake from fruits, vegetables and other

sources and risk of non-Hodgkin's lymphoma: the Iowa Women's Health Study.

J Cell Physiol. 2010 Mar 18. Sorafenib combined vitamin K induces apoptosis in human

pancreatic cancer cell lines through RAF/MEK/ERK and c-Jun NH2-terminal kinase

pathways.

Gastroenterol Hepatol. 2009 Nov 19. Naturally occurring K vitamins inhibit pancreatic cancer cell

survival through a caspase-dependent pathway.

Endocr J. 2009;56(7):843-9. Epub 2009 Jun 24. Vitamin K2 suppresses proliferation and motility of

hepatocellular carcinoma cells by activating steroid and xenobiotic receptor.

J Gastroenterol Hepatol. 2009 Nov 19. Naturally occurring K vitamins inhibit pancreatic cancer cell

survival through a caspase-dependent pathway.

Nutr Res. 2009 Sep;29(9):676-83. Prevalence of vitamin K and vitamin D deficiency in patients

with hepatobiliary and pancreatic disorders.

Am J Clin Nutr. 2009 Oct;90(4):889-907. Vitamin K, an example of triage theory: is micronutrient

inadequacy linked to diseases of aging?

J Hepatol. 2009 Aug;51(2):315-21. Combination of vitamin K2 and angiotensin-converting enzyme

inhibitor ameliorates cumulative recurrence of hepatocellular carcinoma.

Int J Toxicol. 2009 Jan-Feb;28(1):33-42.Menadione reduction by pharmacological doses of

ascorbate induces an oxidative stress that kills breast cancer cells.

Cancer Chemother Pharmacol. 2009 Dec;65(1):143-50. The potential of vitamin K3 as an

anticancer agent against breast cancer that acts via the mitochondria-related apoptotic

pathway.

J Steroid Biochem Mol Biol. 2009 Feb;113(3-5):227-32. Antiproliferative action of menadione and

1,25(OH)2D3 on breast cancer cells.

26

Curr Med Chem. 2009;16(15):1821-30 In situ modulation of oxidative stress: a novel and efficient

strategy to kill cancer cells.

Int J Mol Med. 2009 Jun;23(6):709-16. Growth inhibitory effects of vitamin K2 on colon cancer cell

lines via different types of cell death including autophagy and apoptosis.

Jpn J Clin Oncol. 2009 Apr;39(4):251-9..Effect of cell differentiation for neuroblastoma by vitamin

k analogs.

J Gastroenterol. 2009;44(3):228-35. Involvement of hepatoma-derived growth factor in the growth

inhibition of hepatocellular carcinoma cells by vitamin K(2).

Cancer Epidemiol Biomarkers Prev. 2009 Jan;18(1):49-56. Serum undercarboxylated osteocalcin as

biomarker of vitamin K intake and risk of prostate cancer: a nested case-control study in the

Heidelberg cohort of the European prospective investigation into cancer and nutrition.

Apoptosis. 2009 Jan;14(1):108-23. Arsenic induced apoptosis in malignant melanoma cells is

enhanced by menadione through ROS generation, p38 signaling and p53 activation.

Anticancer Res. 2008 Sep-Oct;28(5A):2727-32 Altered deoxyribonuclease activity in cancer cells and its

role in non toxic adjuvant cancer therapy with mixed vitamins C and K3.

Am J Clin Nutr. 2008 Apr;87(4):985-92. Dietary intake of vitamin K and risk of prostate cancer in

the Heidelberg cohort of the European Prospective Investigation into Cancer and Nutrition

(EPIC-Heidelberg).

Biol Pharm Bull. 2008 Jun;31(6):1270-3. An attempt to evaluate the effect of vitamin K3 using as an

enhancer of anticancer agents.

Vitam Horm. 2008;78:435-42 Hepatocellular carcinoma and vitamin K.

Am J Clin Nutr. 2008 Apr;87(4):985-92. Dietary intake of vitamin K and risk of prostate cancer in the

Heidelberg cohort of the European Prospective Investigation into Cancer and Nutrition

(EPIC-Heidelberg).

Cancer Sci. mitochondria-mediated cytotoxicity in human cancer cells.

Cancer Lett. 2008 May 8;263(1):53-60. Vitamin K22008 May;99(5):1040-8. DNA polymerase

gamma inhibition by vitamin K3 induces suppresses malignancy of HuH7 hepatoma cells

via inhibition of connexin 43.

Anticancer Res. 2008 Jan-Feb;28(1A):45-50. The utility of vitamin K3 (menadione) against

pancreatic cancer.

J Clin Pathol. 2008 Apr;61(4):537-40. A study of the prevalence of vitamin K deficiency in patients

with cancer referred to a hospital palliative care team and its association with abnormal

haemostasis.

J Cancer Res Clin Oncol. 2008 Jul;134(7):803-12. Induction of apoptosis in PA-1 ovarian cancer

cells by vitamin K(2) is associated with an increase in the level of TR3/Nur77 and its

accumulation in mitochondria and nuclei.

Hepatogastroenterology. 2007 Oct-Nov;54(79):2073-7. Effect of vitamin K2 on the recurrence in

patients with hepatocellular carcinoma.

Clin Calcium. 2007 Nov;17(11):1693-9. Clinical application of vitamin K for hepatocellular

carcinoma.

Int J Mol Med. 2007 Dec;20(6):801-8. Vitamin K2-induced cell growth inhibition via autophagy

formation in cholangiocellular carcinoma cell lines.

Int J Oncol. 2007 Aug;31(2):323-31. Vitamins K2, K3 and K5 exert antitumor effects on established

colorectal cancer in mice by inducing apoptotic death of tumor cells.

Hepatol Res. 2007 Sep;37 Suppl 2:S303-7. Potential role of vitamin K(2) as a chemopreventive

agent against hepatocellular carcinoma.

Hepatol Res. 2007 Sep;37 Suppl 2:S299-302. Chemoprevention of liver carcinogenesis with retinoids:

Basic and clinical aspects.

27

World J Gastroenterol. 2007 Jun 21;13(23):3259-61. Combined treatment of vitamin K(2) and

angiotensin-converting enzyme inhibitor ameliorates hepatic dysplastic nodule in a patient

with liver cirrhosis.

Intern Med. 2007;46(11):711-5. Hepatocellular carcinoma with peritoneal dissemination which was

regressed during vitamin K2 and vitamin E administration.

Am J Surg. 2007 Apr;193(4):431-7. A review of the prognostic factors in patients with recurrence

after liver resection for hepatocellular carcinoma.

J Gastroenterol Hepatol. 2007 Apr;22(4):518-22. Preventive effects of vitamin K on recurrent

disease in patients with hepatocellular carcinoma arising from hepatitis C viral infection.

Int J Oncol. 2007 Aug;31(2):323-31.Vitamins K2, K3 and K5 exert antitumor effects on established

colorectal cancer in mice by inducing apoptotic death of tumor cells.

Cancer Sci. 2007 Mar;98(3):431-7. Synergistic growth inhibition by acyclic retinoid and vitamin K2

in human

Clin Cancer Res. 2007 Apr 1;13(7):2236-45. Menatetrenone, a vitamin K2 analogue, inhibits

hepatocellular carcinoma cell growth by suppressing cyclin D1 expression through

inhibition of nuclear factor kappaB activation.

J Gastroenterol Hepatol. 2007 Apr;22(4):518-22. Preventive effects of vitamin K on recurrent

disease in patients with hepatocellular carcinoma arising from hepatitis C viral infection.

Clin Calcium. 2006 Sep;16(9):106-14 and Nutrition. 2006 Jul-Aug;22(7-8):845-52. (same article

in both journals) Protective effects of vitamin K against osteoporosis and its pleiotropic

actions

Cancer. 2006 Feb 15;106(4):867-72. The effect of menatetrenone, a vitamin K2 analog, on disease

recurrence & survival in patients with hepatocellular carcinoma after curative treatment: a

pilot study.

Miscellaneous

Vitamin K Deficiency Associated with Intestinal Malabsorption Problems

2014- 2015

Cochrane Database Syst Rev. 2015 Jan 18;1:CD008482. Vitamin K supplementation for cystic

fibrosis.

Curr Opin Clin Nutr Metab Care. 2014 Nov;17(6):531-8. Vitamin K: dietary intake and

requirements in different clinical conditions.

J Pediatr Gastroenterol Nutr. 2014 Apr;58(4):443-8. Fat-soluble vitamins in cystic fibrosis and

pancreatic insufficiency: efficacy of a nutrition intervention.

J Clin Pathol. 2014 Jul;67(7):605-8. Fat-soluble vitamin deficiency in children and adolescents with

cystic fibrosis.

Nutr Clin Pract. 2014 Apr 17;29(4):491-497. Relationship Between Fat-Soluble Vitamin

Supplementation and Blood Concentrations in Adolescent and Adult Patients With Cystic

Fibrosis.

28

2006-2013

Cochrane Database Syst Rev. 2013 Apr 30;4:CD008482. Vitamin K supplementation for cystic

fibrosis.

Arch Gynecol Obstet. 2012 Mar;285(3):559-66. Pregnancy after bariatric surgery: a current

view of maternal, obstetrical and perinatal challenges.

Acta Clin Belg. 2011Mar-Apr;66(2):142-3.Late vitamin K deficiency bleeding leading to a

diagnosis of cystic fibrosis: a case report

Am J Clin Nutr. 2010 Sep;92(3):660-7. Suboptimal vitamin K status despite supplementation in

children and young adults with cystic fibrosis.

Thromb Res 2010 Jan 3. Small intestinal bacterial overgrowth and warfarin dose requirement

variability.

Gastroenterology. 2009 Nov;137(5 Suppl):S105-18. Vitamin K in parenteral nutrition.

Pediatr Clin North Am. 2009 Oct;56(5):1035-53. Nutritional deficiencies during normal growth.

Clin Calcium. 2009 Dec;19(12):1779-87. In vivo metabolism of vitamin K: in relation to the

conversion of vitamin K1 to MK-4.

Pediatrics. 2008 Nov;122(5):1014-20. Prevalence of low bone mass and deficiencies of vitamins D

and K in pediatric patients with cystic fibrosis from 3 Canadian centers.

J Cyst Fibros. 2008 May 27. Efficacy of high dose phylloquinone in correcting vitamin K deficiency

in cystic fibrosis.

Arch Pediatr. 2008 Mar;15(3):301-12. Recommendations for the management of bone

demineralization in cystic fibrosis

J Cyst Fibros. 2008 Jul;7(4):307-12. Undercarboxylated osteocalcin and bone mass in 8-12 year old

children with cystic fibrosis.

Nutrition. 2008 Apr;24(4):330-9. Nutrient intake from habitual oral diet in patients with severe short

bowel syndrome living in the southeastern United States.

Tohoku J Exp Med. 2007 Jul;212(3):335-9. Vitamin K-deficient intracranial hemorrhage as the first

symptom of cytomegalovirus hepatitis with cholestasis.

Masui. 2007 Feb;56(2):181-5.Suspicious case of epidural hematoma due to coagulopathy caused by

vitamin K deficiency associated with antibiotics.

J Hum Nutr Diet. 2007 Dec;20(6):605-10. Vitamin K prescribing patterns and bone health

surveillance in UK children with cystic fibrosis.

Bone. 2007 Dec;41(6):965-72. Shwachman-Diamond syndrome is associated with low-turnover

osteoporosis.

Adv Ther. 2007 Nov-Dec;24(6):1286-9 Celiac disease with diffuse cutaneous vitamin K-deficiency

bleeding.

J Child Neurol. 2007 Jan;22(1):114-5.Cerebral hemorrhage as the initial manifestation of cystic

fibrosis.

Gastroenterol Clin Biol. 2007 Jun;31(6-7):614-5. Severe vitamin K deficiency during a drug

wash-out procedure with cholestyramine. 2006

Adv Ther. 2006 May-Jun;23(3):469-74. Evaluation of vitamin K deficiency in children with acute

and intractable diarrhea.

Pediatr Neurosurg. 2006;42(6):362-7 Intracranial hemorrhage and vitamin K deficiency associated

with biliary atresia: summary of 15 cases and review of the literature.

29

Vitamin K Inadequacy and Prenatal Health

2012- 2015

J Nippon Med Sch. 2015;82(1):54-8. A case of maternal vitamin k deficiency associated

with hyperemesis gravidarum: its potential impact on fetal blood coagulability.

Seizure. 2015 Feb 21. Women with epilepsy and post partum bleeding - Is there a role for

vitamin K supplementation?

Am J Med Genet A. 2013 Mar;161A(3):417-29. Maternal vitamin K deficient

embryopathy: association with hyperemesis gravidarum and Crohn disease.

Am J Med Genet A. 2013 Sep;161A(9):2396-8. Late-onset partial complex seizures

secondary to cortical dysplasia in a patient with maternal vitamin K deficient

embryopathy: comments on the article by Toriello et al. [2013] and first report of the

natural history.

Arch Gynecol Obstet. 2012 Mar;285(3):559-66. Pregnancy after bariatric surgery: a current

view of maternal, obstetrical and perinatal challenges

2006-2011 Cochrane Database Syst Rev. 2010 Jan 20;(1):CD000229. Vitamin K prior to preterm birth for

preventing neonatal periventricular hemorrhage.

Early Hum Dev. 2010 Jan 28. Vitamin K the basics-What's new?

Early Hum Dev. 2010 Jan 25. Vitamin K prophylaxis for preterm infants.

Acta Paediatr. 2009 Dec 3. Evaluation of the acceptability of a new oral vitamin K prophylaxis for

breastfed infants.

Hematol Oncol. 2009 Dec;31(12):985-8. Third trimester fetal intracranial hemorrhage owing to

vitamin K deficiency associated with hyperemesis gravidarum.

2008 Eur J Pediatr. 2008 Feb;167(2):165-9. Incidence of late vitamin K deficiency bleeding in

newborns in the Netherlands in 2005: evaluation of the current guideline.

Pediatrics. 2008 Apr;121(4):e857-63.Prevention of vitamin K deficiency bleeding in breastfed

infants: lessons from the Dutch and Danish biliary atresia registries.

Prenat Diagn. 2008 Jan;28(1):59-61. Vitamin K deficiency in hyperemesis gravidarum as a potential

cause of fetal intracranial hemorrhage and hydrocephalus.

2007 J Matern Fetal Neonatal Med. 2007 Sep;20(9):661-7. Preeclampsia is associated with low

concentrations of protein Z.

Am J Med Genet A. 2007 Jan 15;143(2):200-4. Gray matter heterotopias and brachytelephalangic

chondrodysplasia punctata: a complication of hyperemesis gravidarum induced vitamin K

deficiency?

Neurology. 2007 Dec 11;69(24 Suppl 3):S10-6. Importance of monotherapy in women across the

reproductive cycle. [Seizure Medications]

J Am Diet Assoc. 2007 Dec;107(12):2091-9. Poor nutrient intakes during 1-year follow-up with

community-dwelling older adults with early-stage Alzheimer dementia compared to

cognitively intact matched controls.

Arch Dis Child. 2007 May 23; Vitamin K deficiency bleeding: the readiness is all.

N Engl J Med. 2007 Jan 11;356(2):174-82. Case records of the Massachusetts General Hospital.

Case 1. A 40-year-old woman with epistaxis, hematemesis, and altered mental status.

30

Arch Dis Child. 2007 May 30; Vitamin K deficiency bleeding in the Great Britain and Ireland;

British Paediatric Surveillance Unit Surveys, 1993 - 94 and 2001 - 02.

Pediatrics. 2006 Dec;118(6):e1657-66Vitamin K prophylaxis for preterm infants: a randomized,

controlled trial of 3 regimens.

Some Basic Science References: some recent study topics.

2010 J Nutr Biochem. 2010 Jan 19. Age- and brain region-specific effects of dietary vitamin K on

myelin sulfatides.

Transplantation. 2010 Feb 27;89(4):458-464. Quantitative determination of plasma vitamin K1

byHPLC coupled isotope-dilution tandem mass spectrometry.

Bioelectrochemistry. 2008 May 12. Direct and indirect methods for the determination of vitamin

K(3) using differential pulse polarography and application to pharmaceuticals

Biochemistry. 2008 Jun 17;47(24):6301-10. Transmembrane domain interactions and residue

proline 378 are essential for proper structure, especially disulfide bond formation, in the

human vitamin K-dependent gamma-glutamyl carboxylase.

J Biol Chem. 2008 Jun 27;283(26):17991-8 001. Periostin, a member of a novel family of vitamin

K-

dependent proteins, is expressed by mesenchymal stromal cells.

Vitam Horm. 2008;78:185-209. Vitamin K-dependent actions of Gas6.

Vitam Horm. 2008;78:131-56. Vitamin K-dependent carboxylation.

Vitam Horm. 2008;78:103-30. Structure and function of vitamin K epoxide reductase.

Vitam Horm. 2008;78:85-101. Quinone oxidoreductases and vitamin K metabolism.

Bioorg Med Chem Lett. 2007 Nov 15;17(22):6383-6. Effects of quinones on free-radical processes

of oxidation and fragmentation of hydroxyl-containing organic compounds. Vitam Horm.

2008;78:63-84. Structure, function, and mechanism of cytosolic quinone reductases.

Vitam Horm. 2008;78:35-62. The vitamin K cycle.

Vitam Horm. 2008;78:23-33. VKORC1 and the vitamin K cycle.

Vitam Horm. 2008;78:1-22. Determinants of vitamin K status in humans.

Vitam Horm. 2008;78:XIX-XX. Vitamin K. Preface.

Methods Mol Biol. 2008;446:85-94. gamma-Glutamate and beta-hydroxyaspartate in proteins. J

Nutr. 2008 Mar;138(3):492-6. Age and dietary form of vitamin K affect menaquinone-4

concentrations in male Fischer 344 rats.

J Biol Chem. 2008 Apr 25;283(17):11270-9. Conversion of phylloquinone (Vitamin K1) into

menaquinone-4 (Vitamin K2) in mice: two possible routes for menaquinone-4 accumulation

in cerebra of mice.