受賞総説
ビタミンB6欠乏症を引き起こす銀杏中毒に関する研究
キーワード:
Ginkgo biloba,
vitamin B6,
4′-O-methylpyridoxine,
pyridoxal-5′-phosphate,
ginkgo seed poisoning,
convulsion
2019 年 139 巻 1 号 p. 1-6
詳細
2019 年 139 巻 1 号 p. 1-6
Overconsumption of Ginkgo biloba seeds induces food poisoning characterized by tonic-clonic convulsions and vomiting. The primary toxic component, 4′-O-methylpyridoxine (MPN), was purified from the seeds in 1985. This review includes the following aspects of ginkgo seed poisoning: 1) toxicity related to the content of MPN and MPN glucoside in G. biloba seeds; 2) the effect of MPN on vitamin B6 analogs, including an increase in pyridoxal and pyridoxic acid and decrease in pyridoxal-5′-phosphate plasma concentrations; 3) case reports of ginkgo seed poisoning in Asia, North America, and Europe, and their effective treatment via vitamin B6 administration. Considering the increase in the use of G. biloba seeds, it is essential to raise global awareness of their potential toxicity.
