The "ATP" B-Vitamins (B1, B2, B3, B5, and B7) Flashcards
Vitamin B1 is
Thiamine
Thiamin is a form of B1, but what is the active cofactor form?
Thiamine Pyrophosphate (TPP)
Increases the absorption and bioavailability of Thiamine
Vitamin C
Decreases the absorption and bioavailability of thiamine
Oxidants in foods and alcohol
Vitamin B1 (Thiamine) has which 4 main functions?
ATP production, DNA/RNA synthesis, NADPH synthesis, Nerve function
Plays a role in the conversion of pyruvate to acetyl-CoA, the krebs cycle, and the pentose-phosphate pathway
Vitamin B1
Thiamin triphosphate functions in
Nerve function
Vitamin B1 deficiency results in
Beri Beri
What are the 4 forms of Beri Beri?
Dry, Wet, Infantile, and Cerebral
Severe muscle wasting, leg cramps, tenderness, decreased feeling in feet and toes (peripheral neuropathy)
Dry Beri Beri
Swelling (edema) of arms and legs, enlargement of heart, breathing problems, possible heart failure
Wet Beri Beri
Seen in babies breast-fed by thiamin-deficient mothers
-Leads to Heart failure
Infantile Beri Beri
Often caused by alcoholism (low B1 intake + impaired absorption)
-Characterized by involuntary movement and paralysis of the eye, poor muscle coordination, confusion and short-term memory loss
Cerebral (Wernicke-Korsakoff Syndrome)
Vitamin D deficiency has also been shown to be a prevalent thing in
Heart Failure
Vitamin B2 is
Riboflavin
What are the two active cofactor forms of Riboflavin?
Flavin Adenine Dinucleotide (FAD) and Flavin Mononucleotide (FMN)
Plays an important role in the generation of 4 ATP for each citric acid cycle
Riboflavin
What are the 4 main functions of riboflavin?
- ) Redox reactions for generation of NADPH
- ) ATP production
- ) Synthesis or activation of vitamins
- ) Neurotransmitter metabolism
Functions in the krebs cycle and the use of fatty acids for ATP production
Vitamin B2 (Riboflavin)
Vitamin B2 plays a role in the synthesis or activation of which 5 vitamins?
A, Folate, Niacin, B6, and K