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What causes Hunter syndrome (MPS II)?

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Boys with the disease can't make a certain protein because there's a problem with a small piece of their DNA, called a gene, that comes from their mother.

A dad with Hunter syndrome will pass the problem gene to his daughter, but she won't get the disease unless she gets the gene from her mom, too.

It's possible -- but very, very unlikely -- that someone could develop Hunter syndrome even though no one in their family going back has had it.

From: Hunter Syndrome (MPS II) WebMD Medical Reference

SOURCES:

American Academy of Pediatrics: "Multidisciplinary Management of Hunter Syndrome."

Mucopolysaccharide & Related Diseases Society Australia: "A Guide to Understanding Hunter Syndrome (mucopolysaccharidosis type II; MPS II)."

National MPS Society: "MPS II;" "Daily Living with MPS and Related Diseases;" and "A Guide to Understanding MPS II."

NIH National Library of Medicine: "Mucopolysaccharidosis type II."

Wraith, J. , March 2008. European Journal of Pediatrics

Reviewed by Nayana Ambardekar on June 18, 2018

SOURCES:

American Academy of Pediatrics: "Multidisciplinary Management of Hunter Syndrome."

Mucopolysaccharide & Related Diseases Society Australia: "A Guide to Understanding Hunter Syndrome (mucopolysaccharidosis type II; MPS II)."

National MPS Society: "MPS II;" "Daily Living with MPS and Related Diseases;" and "A Guide to Understanding MPS II."

NIH National Library of Medicine: "Mucopolysaccharidosis type II."

Wraith, J. , March 2008. European Journal of Pediatrics

Reviewed by Nayana Ambardekar on June 18, 2018

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How does Hunter syndrome (MPS II) affect a person physically?

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