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TCB II: 4247kDa protein Essential protein in the delivery of vitamin B12 to cells and tissues The production site of TCB II is primarily hepatocytic, and secondarily endothelial, monocytic and intestinal Functions of vitamin B12: B12 acts as a cofactor for two key enzymatic reactions: Methionine Synthase (cytoplasm): Converts homocysteine methionine Requires methylcobalamin Supports DNA synthesis via the folate cycle (regenerates tetrahydrofolate) Methylmalonyl-CoA Mutase (mitochondria): Converts methylmalonyl-CoA succinyl-CoA Requires adenosylcobalamin Involved in fatty acid and amino acid metabolism Elevated vitamin B12 (hypervitaminemia B12) While vitamin B12 deficiency is commonly discussed, elevated serum B12 (hypercobalaminemia) is less common and often overlooked or misinterpreted
Per week: 14 swabs (2/day) 8 weeks: 112 swabs recommend 2 100count boxes 12 weeks: 168 swabs recommend 2 100count boxes 16 weeks: 224 swabs recommend 3 100count boxes Protocol Overview Concise summary of the oncedaily regimen
Some symptoms of a B12 deficiency include: Feelings of fatigue Anxiety or nervousness Weakness Shortness of breath Tingling sensation in the digits Diarrhea and numbness, among other things These are just some of the common symptoms
Timeline reference points (research planning) Timeframe Days 1-7 Commonly tracked Acute pain reports, injection-site response Notes Anti-doping rule violation begins immediately for tested athletes
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