Acute and sub-chronic toxicity of Cajanus cajan leaf extracts

Published on May 11, 2017in Pharmaceutical Biology2.971
· DOI :10.1080/13880209.2017.1309556
Rong Tang3
Estimated H-index: 3
(Guangzhou University of Chinese Medicine),
Ru-Hua Tian3
Estimated H-index: 3
(Guangzhou University of Chinese Medicine)
+ 3 AuthorsYing-Jie Hu6
Estimated H-index: 6
(Guangzhou University of Chinese Medicine)
AbstractContext: The leaves of Cajanus cajan (L.) Millsp. (Fabaceae) have diverse bioactivities, but little safety data are reported.Objective: This study examines the toxicological profiles of C. cajan leaf extracts.Materials and methods: The leaves were extracted by water or 90% ethanol to obtain water or ethanol extract (WEC or EEC). EEC was suspended in water and successively fractionated into dichloroform and n-butanol extracts (DEC and BEC). Marker compounds of the extracts were monitored by high-performance liquid chromatography (HPLC). Kunming mice were administered with a single maximum acceptable oral dose (15.0 g/kg for WEC, EEC and BEC and 11.3 g/kg for DEC) to determine death rate or maximal tolerated doses (MTDs). In sub-chronic toxicity investigation, Sprague–Dawley rats were orally given WEC or EEC at 1.5, 3.0 or 6.0 g/kg doses for four weeks and observed for two weeks after dosing to determine toxicological symptoms, histopathology, biochemistry and haematology.Results: Flavonoids and sti...
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