Fructose and Galactose Metabolism Flashcards Preview

Medical Biochemistry > Fructose and Galactose Metabolism > Flashcards

Flashcards in Fructose and Galactose Metabolism Deck (11):
1

what are some examples of dietary sources of fructose?

sucrose
fruits
honey
HFCS

2

what is dietary fructose absorbed by?

GLUT 5 facilitated diffusion

3

what is implicated in the higher incidence of obesity?

HFCS

4

where does lactose synthesis take place?

lactating mammary gland during lactation

5

alpha lactalbumin (protein b) synthesis is stimulated by what?

prolactin

6

where is alpha lactalbumin (protein B) found?

only in lactating mammary gland

7

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

8

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)

9

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

10

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

11

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!