The history of qing hao in the Chinese materia medica

Artemisinin is currently used for treating drug-resistant malaria. It is found in Artemesia annua and also in A. apiacea and A. Iancea. 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 her...

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Main Author: Hsu, E
Other Authors: Royal Society of Tropical Medicine and Hygiene
Format: Journal article
Language:English
Published: Elsevier 2006
Subjects:
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author Hsu, E
author2 Royal Society of Tropical Medicine and Hygiene
author_facet Royal Society of Tropical Medicine and Hygiene
Hsu, E
author_sort Hsu, E
collection OXFORD
description Artemisinin is currently used for treating drug-resistant malaria. It is found in Artemesia annua and also in A. apiacea and A. Iancea. 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 centry Chinese scholars recognized the difference between the two species, and advocated the use of A. apicea, 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.
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spelling oxford-uuid:f0fe3208-f6f1-41be-a6aa-bf6ab1eceabf2022-03-27T11:52:20ZThe history of qing hao in the Chinese materia medicaJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:f0fe3208-f6f1-41be-a6aa-bf6ab1eceabfChinese studiesMedical anthropologyAnthropologyEthnobotanyEnglishOxford University Research Archive - ValetElsevier2006Hsu, ERoyal Society of Tropical Medicine and HygieneArtemisinin is currently used for treating drug-resistant malaria. It is found in Artemesia annua and also in A. apiacea and A. Iancea. 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 centry Chinese scholars recognized the difference between the two species, and advocated the use of A. apicea, 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.
spellingShingle Chinese studies
Medical anthropology
Anthropology
Ethnobotany
Hsu, E
The history of qing hao in the Chinese materia medica
title The history of qing hao in the Chinese materia medica
title_full The history of qing hao in the Chinese materia medica
title_fullStr The history of qing hao in the Chinese materia medica
title_full_unstemmed The history of qing hao in the Chinese materia medica
title_short The history of qing hao in the Chinese materia medica
title_sort history of qing hao in the chinese materia medica
topic Chinese studies
Medical anthropology
Anthropology
Ethnobotany
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