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Transcript of Pediatrics Grand Rounds University of Texas Health Science ... · 2/5/2014 · syndrome, and Down...
Pediatrics Grand Rounds 2 May 2014
University of Texas Health Science Center at San Antonio, Texas
1
Autism: Chronic Features and Dynamic Mechanisms
Martha Herbert, PhD, MD TRANSCEND Research Program Pediatric Neurology Martinos Center for Biomedical Imaging Center for Morphometric Analysis Massachusetts General Hospital Harvard Medical School www.TRANSCENDresearch.org www.AutismRevolution.org www.autismWHYandHOW.org
Learning Objectives At the end of this presentation the participant will be able to: 1. Explain how the concept of “allostatic” or “total” load applies to
the autism spectrum 2. List public health measures that could contribute to improving
resilience on the autism spectrum and that could broaden access to appropriate medical care
3. Compare emerging systems biology models of what autism “is” with earlier models focusing mainly on the idea that autism is a lifelong static disorder stamped into the brain by genes
4. Explain how the concepts of neuroplasticity, bandwidth and signal-to-noise ratio may help identify actionable clinical targets in the autism spectrum
5. Describe health justice issues related to developing standards of care that emphasize the potential for plasticity and improvement by addressing actionable issues in autism.\
Changing Concepts and
Findings on Autism Michael Rutter, JADD, 2012
• “New research findings provide major
challenges regarding our understanding of the
concept of autism. ….. It is concluded that,
although there have been major research
advances; there is a need for a
reconceptualization and an avoidance of claims
that go beyond the evidence.”
• In fact, many of the things we have believed
about autism have gone beyond the evidence.
We were doing the best we could. Now we have
a great opportunity to regroup! 4
Many new observations in ASD:
Where might they point?
• It is necessary to think really carefully about
what we think autism “is” and how autism
“works”
• Critical to ask:
– What is “behavior”?
– What generates behavior?
– How can we modulate the processes that
generate behavior?
www.autismWHYandHOW.org 5
From Definition to Model of Autism:
Classic Modular Framework
Gene Brain module Behavior
AUTISM
Social
Interaction
Communi-
cation
Behaviors
Brain A
Brain B
Brain C
(Or neural systems)
6
Assumption: Autism is a “developmental
disorder”
This seems obvious.
But it carries a lot of extra baggage.
7
Pediatrics Grand Rounds 2 May 2014
University of Texas Health Science Center at San Antonio, Texas
2
Assumption: Autism is a
“developmental disorder”
What are the IMPLICATIONS of this assumption?
1. It’s all genetic and predetermined
2. The damage is done really early, probably before you
are born
3. The brain is fundamentally and irretrievably
differently structured and “broken”
4. Brain changes are the cause of ALL the problems
5. There is nothing you can do about it
These assumptions are
not supported by evidence.
Emerging science contradicts them. 8
Beyond Genes
• Not a Static Prevalence
• Not Just Genes: Environmental Contributors
• Not Just a Few High-Impact Genes: Hundreds of Mostly
Lower-Impact Genes
• Not Just Inherited Genes: De Novo Mutations (that children
have but their parents don’t – where do they come from??)
• Not Even Mainly Genes: Substantial Environmental
Contribution
• Not Just Mutations: Epigenetics
9
Genome-wide expression studies in
Autism spectrum disorder, Rett
syndrome, and Down syndrome Lintas et al., Neurobiol Dis, 2010
…Our results surprisingly converge upon immune, and not
neurodevelopmental genes, as the most consistently shared abnormality
in genome-wide expression patterns. A dysregulated immune response,
accompanied by enhanced oxidative stress and abnormal mitochondrial
metabolism seemingly represents the common molecular underpinning of
these neurodevelopmental disorders. This conclusion may be important
for the definition of pharmacological therapies able to ameliorate clinical
symptoms across these disorders.
ALSO: genes most upregulated in autism in recent study were
NEUROIMMUNE genes, not neurodevelopmental. –Kong/Kohane, 2012
10
Etiological heterogeneity in autism spectrum
disorders: more than 100 genetic and genomic
disorders and still counting C. Betancur, Brain Res 2011 42-77
• An exhaustive review of the clinical genetics
and research genetics literature
• 103 disease genes and 44 genomic loci
reported in subjects with ASD or autistic
behavior.
• Commonalities with intellectual disability and
epilepsy.
11
SHANK3, the
Synapse and
Autism
• Altered postsynaptic
density (PSD) proteins
• Smaller PSD
• Fewer dendritic spines
• More dendritic
arborization
• Weaker signaling
• Larger striatum
• Autistic-like behaviors
12
Herbert NEJM 2011 commenting on Peça et al., Nature 2011
Lower dendritic spine density
• Spine density in
striatal medium
spiny neurons
(MSNs) from
Shank3B-/- mice is
lower than that of
wild-type MSNs
Peça et al., Nature 2011
13
WT
KO
Pediatrics Grand Rounds 2 May 2014
University of Texas Health Science Center at San Antonio, Texas
3
Complications
• Well over 100 different genetic disorders involve an autistic
phenotype (Betancur, Brain Res, 2011)
• These in turn comprise a small minority of cases with autism
• The synapse and PSD are highly complex
• Shank3 is expressed not just in brain but in gut and kidney,
is involved in epithelial turnover and mucosal immune
development, and is utilized by some gut pathogens in actin
rearrangement. (Huett et al., Exp Cell Res, 2009)
14
Beyond the Brain
• Not Just Brain Genes: Immune and Metabolic
Genes expressed systemically
• Not Just Local, Modular Brain Disturbances:
Whole Brain Involvement
• Not Just Regional Problems: Brain
Coordination is Widely Challenged
• Not Just Brain Wiring: Active tissue
pathophysiology in the brain (inflammation,
oxidative stress,)
• Not Just the Brain – Whole Body, Whole
System Involvement
15
16
Problems that often precede
the autism diagnosis (plenty of data on this)
• Parents with health problems – Health issues, particularly Metabolic Syndrome (diabesity,
hypertension, etc)
– Exposures (toxins, EMF/radiation, stress) leading to genotoxicity and metabolic dysfunction
• Pregnancy issues – Inadequate nutrition
– Exposures (toxics, medications, EMF, stress, infections, allergens)
• Infancy issues – Infections, antibiotics that injure microbiome
– Allergens, lack of microbiome support
– Insufficiency of various nutrients for handling load of stressors
17
Beyond Neurons
• Not Just Neurons: Glial Cells
• Not Just Brain Cells: Blood flow
• Not Just Brain Cells: maybe even Extracellular Matrix
• How much might the astrocytic dysfunction and swelling
which impairs blood flow, and poor fluid flow in the
extracellular matrix, be hindering synaptic function?
18
THE OTHER BRAIN
by Douglas Fields, PhD, NIH scientist
ABOUT GLIAL CELLS
www.theotherbrainbook.com
19
Pediatrics Grand Rounds 2 May 2014
University of Texas Health Science Center at San Antonio, Texas
4
Beyond
“Prenatally Programmed Deficit”
• Not Just Deficit: Giftedness and High Intelligence.
• Not Just Prenatal
• Not Necessarily Present at Birth
• Not Just Behavior
20
Circular thinking
in autism data interpretation
We believe autism starts prenatally
We do a study
We only consider interpretations of the data related to
prenatal mechanisms
We pick one of those
mechanisms that fits best with our
data
Ta da – we’ve proved that
autism starts prenatally
21
How to account for these phenomena?
22
Patchy lesions were reported by Stoner et al. widely
distributed in postmortem tissue samples of young people
with ASD (top figures)
We also observed widely distributed increases and
decreases in Cortical Thickness (CT) in brains of children
with autism as compared to the control mean volume
Just because cortical lamination
develops prenatally, that does not
mean that its disruption must
emanate from primary
neurodevelopmental processes.
Stoner et al.,, 2014, NEJM
Herbert et al., paper in preparation
Beyond Hopelessness
• Not a Life Sentence: Evidence of
– Severity that varies, particularly in individuals with autism and
mitochondrial disease
– Transient marked reduction of severity in fever
– Remission and loss of diagnosis (currently being studied at the
NIMH)
From Static to Dynamic Encephalopathy
23
Improvement in core autism behaviors
in setting of fever:
not consistent with “hard-wired” cause
Challenges posed by this study:
• This is not consistent with “static encephalopathy”
• What mechanisms might be consistent with this?
• Proposed so far: locus ceruleus, environmental impact on glial gap
junctions, cytokines, membrane lipids, dysfunctional electrophysiological
oscillations
• Additional pertinent citations:
Helt / Fein et al, Neuropsychology Review, 2007; Herbert in Chauhan et al CRC Press late 2009, Mehler & Purpura 2009
Behaviors Associated with Fever in
Children with Autism Spectrum Disorders.
Curran et al, Pediatrics 2007
24
Rapid IMPROVEMENT in
brain connectivity suggests
“state” not “trait”
• Functional connectivity, assumed to be a fixed trait, changed rapidly with drug that impacts brain stress level (propranolol)
Effect of Propranolol on
Functional Connectivity in
Autism Spectrum
Disorder—A Pilot Study Narayanan et al. (Beversdorf
lab)
Brain Imaging and Behavior,
2010
25
Pediatrics Grand Rounds 2 May 2014
University of Texas Health Science Center at San Antonio, Texas
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Reversal in Mouse Models
26
Autism and Dietary Therapy: Case Report and Review of the Literature Martha R. Herbert, PhD, MD1⇑
Julie A. Buckley, MD, FAAP2 1Pediatric Neurology and TRANSCEND Research, Massachusetts General Hospital, Boston, MA, USA 2Pediatric Partners of Ponte Vedra, Ponte Vedra Beach, Florida; Nova Southeastern University, Fort Lauderdale, FL, USA
Martha R. Herbert, PhD, MD, Pediatric Neurology, TRANSCEND Research, Massachusetts General Hospital, Boston, MA 02129, USA. Email: [email protected]
Author Contributions: MRH and JAB contributed equally to this work.
Abstract
We report the history of a child with autism and epilepsy who, after limited response to other interventions following her regression into autism, was placed on a gluten-free, casein-free diet, after which she showed marked improvement in autistic and medical symptoms. Subsequently, following pubertal onset of seizures and after failing to achieve full seizure control pharmacologically she was advanced to a ketogenic diet that was customized to continue the gluten-free, casein-free regimen. On this diet, while still continuing on anticonvulsants, she showed significant improvement in seizure activity. This gluten-free casein-free ketogenic diet used medium-chain triglycerides rather than butter and cream as its primary source of fat. Medium-chain triglycerides are known to be highly ketogenic, and this allowed the use of a lower ratio (1.5:1) leaving more calories available for consumption of vegetables with their associated health benefits. Secondary benefits included resolution of morbid obesity and improvement of cognitive and behavioral features. Over the course of several years following her initial diagnosis, the child’s Childhood Autism Rating Scale score decreased from 49 to 17, representing a change from severe autism to nonautistic, and her intelligence quotient increased 70 points. The initial electroencephalogram after seizure onset showed lengthy 3 Hz spike-wave activity; 14 months after the initiation of the diet the child was essentially seizure free and the electroencephalogram showed only occasional 1-1.5 second spike-wave activity without clinical accompaniments.
OnlineFirst Sage Publications May 13, 2013
The Center for Discovery:
Whole Body SENSITIVE treatment of
neurodevelopmental disabilities based on
Biodynamic Farm
“Wild-type microglia arrest pathology in a
mouse model of Rett syndrome” Derecki et al, Nature, 2012
• Rett features had been attributed to neuronal
dysfunction related to MECP2 mutation
• Astroglial cells now known to contribute
• Now microglia shown to contribute as well: bone
marrow transplant of wild type microglia
– Increased lifespan, normalized breathing, increased
body weight, improved locomotor activity
– Improvement even without direct change to neurons
– Improvements lost when microglial phagocytic
(garbage-collecting) activity inhibited
29
Autism: From Static Genetic Brain Defect
to Dynamic Gene- Environment- Modulated
Pathophysiology
Ch.10 on Autism: By Martha Herbert
in Genetic Explanations: Sense and Nonsense Ed. Krimsky S and Gruber J
Contains detailed exposition, with extensive citations, of the argument that autism is a dynamic—not a static—encephalopathy
30
A Middle-Out Approach to Autism:
Multi-Scale, (Patho)Physiology Centered (see Denis Noble THE MUSIC OF LIFE)
Genes Genome
Environment G x E
Systemic Physiology
Gene Expression
Nervous System
Physiology Behavioral Cognitive Medical
Etiology
Pathogenesis & Active, ongoing
(patho) physiology Phenotype
Developmental Time 31
Pediatrics Grand Rounds 2 May 2014
University of Texas Health Science Center at San Antonio, Texas
6
ENVIRONMENTALLY VULNERABLE
PHYSIOLOGY
Current Opinion in Neurology, April, 2010
32
Whole Body Systems Model: Symptoms Emerge from
Problems with Underlying Functions
33
VISIBLE Social
& Behavioral
SYMPTOMS
are OUTPUT
DISTURBANCE OF
CORE
UNDERLYING
BODY FUNCTIONS
are GENERATORS
Ziggarut model: http://www.texasautism.com/
All the parts really influence each other
Body Cell Health Problems
Brain Cell Health Problems
Brain Function Glitches
Slower to Learn Skills
Stress and Overwhelm
Challenging Behaviors
Transduction: Critical Question in Multi-
Scale Biology
• How do processes at one level get
TRANSDUCED into changes at other levels?
• A classical model is sensory transduction
– From light through eyes/brain to vision
– From vibrations through ears/brain to sound
• For autism, from a middle-out perspective, the
core question is:
How do we get from tissue
pathophysiology to altered brain function? 35
Location of white matter enlargement
points to postnatal brain changes
What do we need to
learn about the
brain and about
autism to
understand this? 36
Inflammation and Oxidative Stress in Autism:
chronic, ongoing postnatal medical problems,
not confined to brain
Neuroglial activation and neuroinflammation in the brain of
patients with autism Vargas et al, 2005, Annals of Neurology
A B
D C
• These changes were found
at similar intensities in brain
aged 5-44 years
• Greater intensity of
inflammation in a 3-year
old’s brain
• Could increase in brain size
relate to inflammation?
Hard to test.
Oxidative stress in brain tissues from autistic patients Increased concentration of isoprostanes
Vargas et al, 2005, Annals of Neurology
37
Pediatrics Grand Rounds 2 May 2014
University of Texas Health Science Center at San Antonio, Texas
7
Astrogliosis Microgliosis
GFAP HLA-Dr
Pardo
Pardo: Astrogliosis in Radiate White Matter
Herbert:
Radiate White
Matter Enlargement
Astrogliosis
38 39
Could Connectivity Alterations in
ASD be based in Tissue Issues?
•Water, not fiber
changes in
brain tissue Hendry 2005
•Less white
matter integrity
•Less
restriction of
water flow
•More diffusivity Sundaram 2008
•Lower perfusion in ASD brains (by many PET or SPECT
studies) could impact brain function.
How might this affect brain electrophysiology?
The idea that brain
connectivity abnormalities
arise from metabolic, immune
and vascular disturbances
that affect synaptic function.
Local and long-range connectivity BOTH
reduced in autism
• This does not map onto the anatomy
• It may not be primarily caused by damage to long-range axons (nerve fibers)
• Khan/Kenet, PNAS 2013
40
Air Pollution and
Brain Inflammation Block and Calderon-Gardicuenas, TNS, 2009
Air pollution already linked
to autism
(e.g. Palmer 2006;
Windham 2006; Volk 2011)
41
Inflammation as a final
common pathway
42
GLUTATHIONE PROTECTS CELLS
from environmental stress,
but is often low in ASD (and many other chronic conditions)
• GLUTATHIONE (GSH) is vital for detoxification
• Mops up toxins and free radicals
• The body’s most potent anti-oxidant
• The most abundant antioxidant in the BRAIN
• Reduced Glutathione = GSH (active form)
• Oxidized Glutathione = GSSG (used-up form)
Made in the liver from
three amino acids:
Glutamate + Cysteine +
Glycine
42
LOW GLUTATHIONE
Shungu et al., 2012
Suh, J., W. Walsh, et al. (2008). American
Journal of Biotechnology and Biochemistry
4(2): 105-113,
Glutathione - critical antioxidant and detox chemical - low
levels in brains of depressed patients,
lower in brains in Chronic Fatigue Syndrome –
And low systemically in Autism
43
Pediatrics Grand Rounds 2 May 2014
University of Texas Health Science Center at San Antonio, Texas
8
OK GSH/GSSG
GSH/GSSG
TOXICITY
TOXIC THRESHOLD
Toxic Insults Normal Homeostasis
Toxic Insults
Vulnerability with low GSH
S. Jill James
Fragile Homeostasis
(limited reserve)
44
Recovery may be
difficult
Glutathione and Oxidative Stress as
“Final Common Pathways” • GSH is depleted by thousands of toxins, oxidative stress,
infection, inflammation, EMF and nutrient-poor diet
• Small exposures of any one thing can still add up to a
substantial depletion of antioxidant resilience
• Oxidative stress present in the majority of DSM-IV psychiatric
disorders including: autism, Rett’s, ADHD, schizophrenia,
anxiety, and mood disorders
• “…all these psychiatric disorders might benefit from a change
to a whole-food plant-based diet.” PMID 2330073 • “Glutathione: a novel treatment target in psychiatry” – Trends Pharmacol Sci. 2008 Jul;29(7):346-51
• Lee, D. H., D. R. Jacobs, Jr., et al. (2009). "Hypothesis: a unifying mechanism for nutrition and chemicals as lifelong
modulators of DNA hypomethylation." Environ Health Perspect 117(12): 1799-1802.
45
Brain cells in inflammation:
What is the FUNCTIONAL IMPACT?
Inflammation and Its Discontents: The Role of Cytokines in the Pathophysiology of Major Depression.
Miller et al., BIOL PSYCHIATRY 2009;65:732–741
Could this be creating NOISE that crowds out the brain’s ability to process information?
• Excitatory chemicals created
by activated glial cells
• Normal housekeeping
functions of glial cells get
neglected
• Chronic inflammation is
irritating and promotes
excitotoxicity
• Chronic inflammation can
cause damage
46 47
Major example of functional impact:
Peripheral Inflammation and Neuronal Excitability
Riazi 2010, doi:10.1016/j.eplepsyres.2009.09.004
Autism Electrophysiological Abnormalities
something in everyone, much in some
28 19 18 28 21 21 230
4
8
12
16
20
24
28
1
Total n
Increased alpha
Paroxysmal/epileptiform
Auditory evoked responses
Click AER
FMAER
VEP high amplitudes
Martien & Duffy
Visual Evoked Potential (VEP) amplitude was bigger:
standard deviation was 2.42-8.92 SD
(average 5.4 SD):
Same stimulus elicits larger response
15 of these patients had
no seizure history.
Prediction: Less extreme sensory reactivity
with effective treatment 48
Reduced functional connectivity in
visual evoked potentials in children
with autism spectrum disorder J.R. Isler, K.M. Martien, P.G. Grieve, R.I. Stark, M.R. Herbert
Clinical Neurophysiology 121 (2010) 2035–2043
EEG power and coherence within
and between two homologous
regions of the occipital cortex
were measured during long latency
flash visual evoked potentials.
Measures were compared between
two groups of children (5.5–8.5
years), one with autism spectrum
disorders and the other with typical
development.
49
Pediatrics Grand Rounds 2 May 2014
University of Texas Health Science Center at San Antonio, Texas
9
“Inefficiency” in
brain signaling in autism J.R. Isler, K.M. Martien, P.G. Grieve, R.I. Stark, M.R. Herbert
Clinical Neurophysiology 121 (2010) 2035–2043
ASD has more power than controls… but less coherence
POOR SNR – Sound and Fury, signifying nothing 50
EEG of Sensory Responses
• Sensory stimulation can
be overwhelming
Screen Saver: Less Stimulation
Movie: More Stimulation
5-8 years old
9-11 years old
Autistic children fail to
upregulate activity when
stimulus increases
Looks milder in older kids
Martien et al. 2008
Prediction:
Improved connectivity with
effective treatment 51
Lines indicate differences between
ASD and age-matched controls
Metabolite level
correlating with brain
activation
• More NAA in controls than in autism
• Linear correlation of amount of functional activation to amount of NAA
• NAA = N-acetylaspartate
Kleinhans et al, 2007
Brain magnetic resonance spectroscopy summary of
findings in literature to date: Mostly lower density of
metabolites
• Metabolites
– Mostly reduced or no change; few reports of increase
– Most studies done on 1.5T which has poor signal to noise ratio (only 1 of 22 done on 3T) and could miss differences
Shetty, Ratai, Ringer, Herbert, 2009
Dager review chapter 2008 and many papers
Reversibility of reduced NAA after epilepsy
surgery • NAA (marker of neuronal
density or function) reduced on the side opposite of a seizure focus
• After surgical resection of seizure focus, NAA on the other side returns to normal
Pan, 2008 Neurometabolism in Human
Epilepsy
IMPLICATION: The persistent aberrant electrical charges
afflicting the opposite side appear to have taken those cells off
line, but not “taken them out” since they came back online
after the seizure electrical activity stopped.
NAA = n-acetylaspartate
Reduced
informational
complexity and
organization
Reduced signal
to noise ratio
Increased chaos
and confusion
Too Much
Excitation
Not
Enough
Inhibition
=
More:
irritability,
hypersensitivity,
overload
ALLOSTATIC LOAD MODEL: Genetic and
Environmental Stressors are contributing to an
ONGOING, CHRONIC DEGRADATION OF BRAIN
AND BODY FUNCTION and increase in ENTROPY Model of autism: Increased ratio of excitation / inhibition in key neural systems
Rubenstein & Merzenich, Genes, Brain and Behavior (2003) 2: 255-267
This excitation/inhibition ratio can be increased by inflammation,
oxidative stress and toxicants, as well as genetic dysfunction
Pediatrics Grand Rounds 2 May 2014
University of Texas Health Science Center at San Antonio, Texas
10
A must-read statement of a systems biology
approach to complex illness:
From ‘omics’ to complex disease:
a systems biology approach to
gene-environment interactions in cancer
By Sarah S Knox: http://www.cancerci.com/content/10/1/11
Looks at cancer as accumulated ALLOSTATIC LOAD
from diet and environment
Advocates a dynamic transdisciplinary systems
biology approach aimed at reversing multiple levels of
dysfunction.
JUST ABOUT EVERYTHING SHE SAYS
APPLIES TO AUTISM
56
Metaphor: Tissue pathophysiology REDUCES BRAIN BANDWIDTH
Lots of Bandwidth:
Good Reception
Poor Bandwidth:
Limited Reception
Better Reception Allows Better Discernment of Differences and More Spontaneous Learning 57
SIGNAL to
NOISE ratio
(SNR) and
BANDWIDTH
Better Reception Allows More Spontaneous Learning
More SIGNAL
Less SIGNAL
Better SNR, Better Bandwidth Worse SNR, Less Bandwidth
More NOISE
Less NOISE
58
“Wild-type microglia arrest pathology in a
mouse model of Rett syndrome” Derecki et al, Nature, 2012
• Rett features had been attributed to neuronal
dysfunction related to MECP2 mutation
• Astroglial cells now known to contribute
• Now microglia shown to contribute as well: bone
marrow transplant of wild type microglia
– Increased lifespan, normalized breathing, increased
body weight, improved locomotor activity
– Improvement even without direct change to neurons
– Improvements lost when microglial phagocytic
(garbage-collecting) activity inhibited
59
Electron microscopy of
therapeutically activated glia turning into
“brain garbage collectors and transporters” CELLS PICK UP CELLULAR DEBRIS, SIDLE OVER TO BLOOD VESSEL, AND DUMP DEBRIS INTO BLOOD VESSEL
They do this after receiving an intensive nutiritional stimulation program
RIGA, S. et al., Ann. N.Y. Acad. Sci. 1067: 383–387 (2006)
RIGA, S. et al., Arch. Gerontol. Geriatr. suppl. 4 (1994) 227-234
60
PROPOSITION / ASSERTION:
We know enough now to
promote health and hunt for and
remove contributors to harm
61
Everyday Epigenetics: From Molecular Intervention
to Public Health and Lifestyle Medicine By Martha R Herbert PhD MD
www.najms.net
July 25, 2013
[N A J Med Sci. 2013;6(3):167-170. DOI: 10.7156/najms.2013.0603167]
Pediatrics Grand Rounds 2 May 2014
University of Texas Health Science Center at San Antonio, Texas
11
Toward the Pathophysiology of
Autistic Regression • Too much allostatic load plus genetic and
environmental weak points.
• Oxidative stress and inflammation
• Cells become hypersensitive and overreactive
• Tipping point is reached.
• Brain glial cells dysfunction and don’t keep up their housekeeping functions.
• Brain energy production gets less efficient.
• Brain networks get weaker
• Weaker brain networks produce weaker interactions with world
• This produces behaviors we call “autistic.”
Spelled out in more detail in Chapter 5 of
THE AUTISM REVOLUTION (Herbert 2012) 62
BRAIN CHANGES IN INFANTS
DEVELOPING AUTISM
• From higher to lower “FA”
• Decrease in fiber organization relative to
controls
• This DEVELOPS over time
• It is probably DOWNSTREAM of the
metabolic, cellular pileup of problems
• See blog critique of Wolff paper: Why
aren’t we there yet? Valuable but
incomplete brain imaging data in infants • In www.autismWHYandHOW.org
Wolff et al., 2012 63
What we CAN do, but don’t
The Diabetes Prevention Program (DPP) clinical trial and its 10-year outcomes study (DPPOS), both sponsored by the National Institutes of Health (NIH), showed that certain interventions could prevent or substantially delay the onset of type 2 diabetes both safely and cost-effectively.1,2 Yet diabetes prevention is not widely practiced in the United States, and the disease's staggering human and financial costs continue to grow.
What are the consequences of poor lifestyle
choices?
• Physiological dysfunction
– Mitochondrial and metabolic
dysfunction
– Oxidative stress
– Inflammation and immune
dysfunction
• Chronic Illness
• Brain dysfunction
• Greater risk of life-
threatening illness and early
death
ABUNDANTLY
DOCUMENTED IN AUTISM
Autism IS a chronic illness
Autism involves brain
issues
Evidence for this is starting
to accumulate
Large scale systems failure in healthcare
system
• Lifestyle intervention can prevent conversion into diabetes
by 58% compared to the drug metformin (31%)
• CMS (Ctr for Medicare and Medicaid services) lacks statutory
authority to reimburse nontraditional care providers, such as
lifestyle coaches.
• Therefore we spend $750 BILLION dollars a year on diabetes
treatment instead of prevention.
DoD Funded Study:
A MULTI-SYSTEM ASSESSMENT OF
INFANTS AT HIGH RISK FOR AUTISM Initiating PI: Martha Herbert
Partnering PI: Margaret Bauman
• Longitudinal Multisystem assessment
– Metabolism, Immune, Toxics, Endocrine
– Brain (EEG), Autonomics
– Medical Comorbidities
– Developmental/Behavioral Phenotyping
• HYPOTHESIS: Autism emerges from a cascade of insults
to physiological integrity culminating in a shift in the level
of available brain function
67
Pediatrics Grand Rounds 2 May 2014
University of Texas Health Science Center at San Antonio, Texas
12
Infant EEG
Photos used with permission 68
Sources detailing these arguments
69
• GENETIC EXPLANATIONS: Sense and Nonsense S Krimsky and J Gruber, Eds: "Autism: From Static Genetic Brain Defect to Dynamic Gene-
Environment-Modulated Pathophysiology," Chapter 10, on autism, by Martha Herbert
• THE AUTISM REVOLUTION:
Whole-Body Strategies for Making Life All It Can Be
Random House/Harvard Health Publications 2012 by Martha Herbert with Karen Weintraub
• For more technical detail on pathophysiology: “Autism and EMF? Plausibility of a
Pathophysiological Link” in Pathophysiology, 2013, PMIDs 24095003 & 24113318
• “Everyday Epigenetics: From Molecular Intervention to Public Health and Lifestyle Medicine”,
2013, http://najms.net/v06i03p167a/ or www.marthaherbert.org/publications
• Further papers: www.marthaherbert.org or http://connects.catalyst.harvard.edu/Profiles/display/Person/47629
• Blogs listed on www.AutismRevolution.org
• Overview of multiple synergistic viewpoints on autism: www.autismWHYandHOW.org
Autism: WHY and HOW ?
www.autismWHYandHOW.org
• A website reviewing multiple viewpoints and their intersections
• A literature repository
• A framework for reflective discourse
70
TRANSCEND Research Program
www.transcendresearch.org
Integrative multimodal measurement platform
Optimization of measures that can detect change
In development, in regression, in improvement
MRI MEG
EEG NIRS
Biological Function
MRI MEG
EEG NIRS
Biological Function
MRI MEG
EEG NIRS
Biological Function
MRI MEG
EEG NIRS
Biological Function
71