Hemophilia By Charlene Yan. What is it? A group of hereditary disorders that impair the body’s...
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![Page 1: Hemophilia By Charlene Yan. What is it? A group of hereditary disorders that impair the body’s ability to control blood clotting. It is a recessive sex-linked.](https://reader036.fdocuments.in/reader036/viewer/2022083006/56649f395503460f94c559d5/html5/thumbnails/1.jpg)
HemophiliaBy Charlene Yan
![Page 2: Hemophilia By Charlene Yan. What is it? A group of hereditary disorders that impair the body’s ability to control blood clotting. It is a recessive sex-linked.](https://reader036.fdocuments.in/reader036/viewer/2022083006/56649f395503460f94c559d5/html5/thumbnails/2.jpg)
What is it?
• A group of hereditary disorders that impair the body’s ability to control blood clotting.• It is a recessive sex-linked disorder
therefore it affects more males than females.
![Page 3: Hemophilia By Charlene Yan. What is it? A group of hereditary disorders that impair the body’s ability to control blood clotting. It is a recessive sex-linked.](https://reader036.fdocuments.in/reader036/viewer/2022083006/56649f395503460f94c559d5/html5/thumbnails/3.jpg)
Causes
• Hemophilia A is a recessive X-linked genetic disorder involving a lack of functional clotting Factor VIII and represents 80% of hemophilia cases. • Hemophilia B is a recessive X-linked genetic
disorder involving a lack of functional clotting Factor IX. Comprises almost 20% of all cases.• Hemophilia C is an autosomal genetic disorder
involving a lack of Factor XI. This is the least likely form.
![Page 4: Hemophilia By Charlene Yan. What is it? A group of hereditary disorders that impair the body’s ability to control blood clotting. It is a recessive sex-linked.](https://reader036.fdocuments.in/reader036/viewer/2022083006/56649f395503460f94c559d5/html5/thumbnails/4.jpg)
![Page 5: Hemophilia By Charlene Yan. What is it? A group of hereditary disorders that impair the body’s ability to control blood clotting. It is a recessive sex-linked.](https://reader036.fdocuments.in/reader036/viewer/2022083006/56649f395503460f94c559d5/html5/thumbnails/5.jpg)
Symptoms
• A hemophiliac does not bleed more intensely than a normal person but bleeds for a longer time.• In severe hemophiliacs, even a minor injury can
result in blood lost lasting days or weeks.• Children with mild to moderate hemophilia may
not have any symptoms at birth except large bruises when they fall.
![Page 6: Hemophilia By Charlene Yan. What is it? A group of hereditary disorders that impair the body’s ability to control blood clotting. It is a recessive sex-linked.](https://reader036.fdocuments.in/reader036/viewer/2022083006/56649f395503460f94c559d5/html5/thumbnails/6.jpg)
Life Expectancy
• Before 1960s, treatment was not available so people only lived to 11 years.• Today, with treatment, males with hemophilia
can live normally but with a lifespan 10 years shorter than a normal male.
![Page 7: Hemophilia By Charlene Yan. What is it? A group of hereditary disorders that impair the body’s ability to control blood clotting. It is a recessive sex-linked.](https://reader036.fdocuments.in/reader036/viewer/2022083006/56649f395503460f94c559d5/html5/thumbnails/7.jpg)
History
• Hemophilia is also known as the “royal disease”• Can be traced back to Queen Victoria, who was a
carrier of the disease• Two of Victoria’s daughters were carriers of the
disease so they passed the disease on to the Spanish, German, and Russian royal families
![Page 8: Hemophilia By Charlene Yan. What is it? A group of hereditary disorders that impair the body’s ability to control blood clotting. It is a recessive sex-linked.](https://reader036.fdocuments.in/reader036/viewer/2022083006/56649f395503460f94c559d5/html5/thumbnails/8.jpg)
Discovery of Disease
• Dr. John Conrad Otto• Discovered it in 1803, but he could not explain
why affected males could pass the trait to unaffected daughters.• This was only described in 1813 by John Hay.
![Page 9: Hemophilia By Charlene Yan. What is it? A group of hereditary disorders that impair the body’s ability to control blood clotting. It is a recessive sex-linked.](https://reader036.fdocuments.in/reader036/viewer/2022083006/56649f395503460f94c559d5/html5/thumbnails/9.jpg)
How Technology has advanced• In the 1970s, treatment for hemophilia was
discovered.• The treatment for hemophilia includes the
infusion of factors XIII, IX, or XI.• In the 1990s, scientists came up with the idea of
injecting prophylaxis into children with hemophilia.• Prophylaxis prevents chronic bleeding.• Today, children with hemophilia can live
normally.
![Page 10: Hemophilia By Charlene Yan. What is it? A group of hereditary disorders that impair the body’s ability to control blood clotting. It is a recessive sex-linked.](https://reader036.fdocuments.in/reader036/viewer/2022083006/56649f395503460f94c559d5/html5/thumbnails/10.jpg)
Bibliography• http://en.wikipedia.org/wiki/File:XlinkRecessive.jpg • http://www.hemophilia.org/NHFWeb/MainPgs/MainNHF.asp
x?menuid=178&contentid=6