Thiamine (Vitamin B1):

Journal of Evidence-Based Integrative Medicine

AvivaFattal-Valevski¹ 

关键词: thiamine;    vitamin B1;    beriberi;    Wernicke-Korsakoff syndrome;    neuropathy;    cardiomyopathy;   

DOI  :  10.1177/1533210110392941

学科分类：医学（综合）

来源: Sage Journals

【 摘 要 】

Thiamine (vitamin B 1) was the first B vitamin to have been identified. It serves as a cofactor for several enzymes involved in energy metabolism. The thiamine-dependent enzymes are important for the biosynthesis of neurotransmitters and for the production of reducing substances used in oxidant stress defenses, as well as for the synthesis of pentoses used as nucleic acid precursors. Thiamine plays a central role in cerebral metabolism. Its deficiency results in dry beriberi, a peripheral neuropathy, wet beriberi, a cardiomyopathy with edema and lactic acidosis, and Wernicke—Korsakoff syndrome, whose manifestations consist of nystagmus, ophthalmoplegia, and ataxia evolving into confusion, retrograde amnesia, cognitive impairment, and confabulation. Patients on a strict thiamine-deficient diet display a state of severe depletion within 18 days. The most common cause of thiamine deficiency in affluent countries is either alcoholism or malnutrition in nonalcoholic patients. Treatment by thiamine supplementation is beneficial for diagnostic and therapeutic purposes.

【 授权许可】

CC BY-NC