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AOD9604 is a synthetic hexadecapeptide representing amino acids 176191 of the human growth hormone sequence, with a disulfide bridge between Cys182 and Cys189 that mirrors the structure of the native hGH C-terminal region

Vitamin B12 Deficiency and Neuropathy: Symptoms, Science, and Next Steps ND Nerve Disc Institute January 15, 2026 Many people living with tingling feet or numb fingers assume they have normal aging or a back problem

outcomes vary by individual, injury type, age, and overall health

For borderline B12 results, additional tests such as holotranscobalamin, methylmalonic acid, or homocysteine may be helpful