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The relationship between the amount of vitamin B 6 consumed and the serum levels of those who consume it varies between individuals. [52] Some people may have high serum concentrations without neuropathy symptoms. [13] [53] [54] It is not known if inhalation of vitamin B 6 while, for example, working with animal feed containing vitamin B 6 is ...
Vitamin B m: myo-inositol, also called "mouse antialopaecia factor". [48] Vitamin B p: "antiperosis factor", which prevents perosis, a leg disorder, in chicks; can be replaced by choline and manganese salts. [37] [38] [49] Vitamin B T: carnitine. [50] [37] Vitamin B v: a type of B 6 other than pyridoxine. Vitamin B W: a type of biotin other ...
With few exceptions, like some vitamins from B-complex, hypervitaminosis usually occurs with the fat-soluble vitamins A and D, which are stored, respectively, in the liver and fatty tissues of the body. These vitamins build up and remain for a longer time in the body than water-soluble vitamins. [2] Conditions include: Hypervitaminosis A
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These side effects have been noted: [14] Most frequent: constipation; Increased plasma triglycerides [15] Intestinal obstruction has been reported in patients with previous bowel surgery who should use colestyramine cautiously. [16] [17] Cholestyramine-induced hyperchloremic metabolic acidosis has also been reported rarely. [18]
Cyanocobalamin is a form of vitamin B 12 used to treat and prevent vitamin B 12 deficiency except in the presence of cyanide toxicity. [7] [8] [2] The deficiency may occur in pernicious anemia, following surgical removal of the stomach, with fish tapeworm, or due to bowel cancer.
Vitamin B 12 is derived from a tetrapyrrolic structural framework created by the enzymes deaminase and cosynthetase which transform aminolevulinic acid via porphobilinogen and hydroxymethylbilane to uroporphyrinogen III. The latter is the first macrocyclic intermediate common to heme, chlorophyll, siroheme and B 12 itself.
When foods containing B 12 are eaten, the vitamin is usually bound to protein and is released by proteases released by the pancreas into the small bowel. Following its release, most B 12 is absorbed by the body in the small bowel ( ileum ) after binding to a protein known as intrinsic factor .