Pyridoxal Flashcards Preview

Nutrition > Pyridoxal > Flashcards

Flashcards in Pyridoxal Deck (21):
1

is it a trace element, vitamin, or mineral? Pyridoxal

vitamin B6

2

what is its coenzyme form? Pyridoxal

Pyridoxal Phosphate PLP

3

what are its three functions? Pyridoxal

Protein, fat and carbohydrate metabolism; Breakdown of homocysteine; Synthesis of white blood cells & hemoglobin
that carries 02

4

why is it important that it Breakdowns homocysteine? Pyridoxal

Increased in cardiovascular disease, Alzheimer’s, Parkinson’s

5

because one its functions is: Synthesis of white blood cells & hemoglobin
that carries 02, what happens with a deficiency here? Pyridoxal

causes microcytic anemia

6

what are the three deficiency symptoms? Pyridoxal

Dermatitis, Mental retardation, Antibody impairment

7

what does the deficiency symptom of Dermatitis do? Pyridoxal

Atrophied taste buds

8

what does the deficiency symptom of Mental retardation do? Pyridoxal

 Convulsive seizures
 Infants ingesting auto-claved formula

9

what are the five clinical deficiency symptoms? Pyridoxal

 TB: Isoniazid  Nausea of pregnancy  Old oral contraceptives  Carpal tunnel syndrome
 Premenstrual syndrome, depression

10

what are the clincial deficiency symptom details of TB: Isoniazid? Pyridoxal

Anti-vitamin

11

how much is needed to eliminate the deficiency symptom of nausea? Pyridoxal

50 mg/d

12

how much of an increase in requirements is needed with the deficiency symptom of old oral contraceptives that made people nausitious? Pyridoxal

Increased requirement to 30 mgd

13

how does this help with the deficiency symptom of Premenstrual syndrome, depression? Pyridoxal

Converts tryptophan to serotonin

14

when does toxicity occur? Pyridoxal

2-6 g/2-40 months

15

what are the two toxicity symptoms? Pyridoxal

 Sensory neuropathy  Lesions of the skin

16

what causes toxicity? Pyridoxal

From dosing for premenstrual tension, carpal tunnel syndrome

17

whats an excellent food source? Pyridoxal

muscle meats

18

is it widely distributed? Pyridoxal

yes

19

what food source is it not in? Pyridoxal

enriched flour

20

what are the five main food sources? Pyridoxal

 Enriched cereals  Meat, poultry, fish  Starchy vegetables

21

why is it important for tryptophan? Pyridoxal

Tryptophan can be converted to niacin