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    md90's Avatar
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    #20--need to eat, bld sugar low

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    two sisters diagnosed with hemolytic anemia; older brother previously diagnosed with same disorder; two other brothers are asymptomatic; mom and dad are second cousins; Deficiency of what enzyme caused the disorder?

    1. Debranching enzyme
    2. G6P
    3. G6PD
    4. Pyruvate kinase
    5. Muscle phosphorylase














    #4: pyruvate kinase, why? when you think of hemolytic anemia, think of two pathways: Glycolysis and HMP shunt. Only two enzymes are involved in these two pathways: Pyruvate kinase and G6PD; G6PD is x-linked therefore females would not be affected; whereas pyruvate kinase deficiency is autosomal recessive affecting both sexes equally; Debranching enzyme is mainly with Cori's; G6P=Von Gierke's Disease; and Muscle phosphorylase is McArdle's...


    NOW, I need to eat.. need fuel for the brain... take care everyone...

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    ilovetahira's Avatar
    ilovetahira is offline Member
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    Thanx so much u solved confusion in one sentence.

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