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The history of qing hao in the Chinese materia medica

作者 Hsu, E

期刊 TRANSACTIONS OF THE ROYAL SOCIETY OF TROPICAL MEDICINE AND HYGIENE , JUN 2006,6:100

DOI 10.1016/j.trstmh.2005.09.020 PubMed 16566952

摘要 Artemisinin is currently used for treating drug-resistant malaria. It is found in Artemisia annua and also in A. apiacea and A. lancea. Artemisia annua and A. apiacea were known to the Chinese in antiquity and, since they were easily confused with each other, both provided plant material for the herbal drug qing hao (blue-green hao). This article shows, however, that since at least the eleventh century Chinese scholars recognized the difference between the two species, and advocated the use of A. apiaceo, rather than A. annua for ''treating lingering heat in joints and bones'' and ''exhaustion due to heat/fevers''. The article furthermore provides a literal translation of the method of preparing qing hao for treating intermittent fever episodes, as advocated by the eminent physician Ge Hong in the fourth century CE. His recommendation was to soak the fresh plant in cold water, wring it out and ingest the expressed juice in its raw state. Both findings may have important practical implications for current traditional usage of the plant as an antimalarial: rather than using the dried leaves of A. annua in warm infusions, it suggests that fresh juice extraction from A. apiacea may improve efficacy. (C) 2005 Royal Society of Tropical Medicine and Hygiene. Published by Elsevier Ltd. All rights reserved.

涉及物种 黄花蒿 Artemisia annua