Fructose and Galactose Metabolism Flashcards
what are some examples of dietary sources of fructose?
sucrose
fruits
honey
HFCS
what is dietary fructose absorbed by?
GLUT 5 facilitated diffusion
what is implicated in the higher incidence of obesity?
HFCS
where does lactose synthesis take place?
lactating mammary gland during lactation
alpha lactalbumin (protein b) synthesis is stimulated by what?
prolactin
where is alpha lactalbumin (protein B) found?
only in lactating mammary gland
whats up with emily f?
she ate sucrose - had some grenada sugar cane
felt great, no symptoms
went to doctor and had a positive clinitest
she has essential fructosuria
no fructokinase
whats up with henrieta f?
had sucrose - grenada sugar can
all of a sudden was drowsy and hypoglycemic
she went to doctor and she had a positive clinitest
she has hereditary fructose interolerance
no aldolase B
doctor says stop eating sorbitol and fructose (sucrose
fruits
honey
HFCS)
whats up with Nate G?
has cataracts
went to doctor and had positive clinitest
he has non-classical galactosemia
has no galactokinase
doc says to stop eating lactose
Whats up with Carl G?
he had some milk
totally sick = hypoglycermia, cataracts, irreversible neurological damage, jaundice, hepatomegaly
went to the doctor and had positive flintiest
doc says to not eat galactose or lactose
classical galactosemia
has no galactose 1-phosphate uridyl transferase
whats up with Laura i?
she had some milk
was bloated, had diarrhea, and dehydrated
went to the doc and had a negative flintiest
doc says to stick to a low lactose diet
lactose intolerance
no intestinal dissaharidase - lactase!
