HUMNNTR 2210 Lecture Notes - Lecture 2: Vitamin B12 Deficiency, Vitamin B6, Folic Acid
22 Aug 2016
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Repetition learning all b vitamins function as part of coenzymes, and are all water soluble. Some enzymes require coenzymes: helper molecules. Most coenzymes are made from b vitamins and other molecules. B vitamins coenzymes function energy release pathways. Ex) thiamin: one of the many jobs. Ex) niacin, riboflavin (vitamin b2: more limited job. Ex) vitamin b6 (main job is to move nitrogen, protein for energy, glycogen breakdown: indirect. Ex) folacin (needed to make red blood cells rapidly, makes dna & rna bases) B6 makes other nitrogen compounds from amino acids: neurotransmitters. Ex) zoloft: different neurotransmitters are used for different communication paths. Folacin make dna/rna bases: need in all cells, but rapidly produced cells most sensitive. B12 cobalt vitamin/ cobalamin: one of its jobs: recycle folacin coenzymes. Liver (no other meats: b12= only animal sources + bacteria. Vitamin b deficiency: symptoms/causes can overlap and differ. Overlap: energy releasing b vitamins (niacin, riboflavin, thiamin,
