| Literature DB >> 2023432 |
M B Ali1, W M Salih, A H Mohamed, A M Homeida.
Abstract
Addition of an aqueous extract of Hibiscus sabdariffa calyces (2.5 ml/bath approximately 125 mg of starting crude material) inhibited the tone of various isolated muscle preparations (rabbit aortic strip, rhythmically contracting rat uterus, guinea-pig tracheal chain and rat diaphragm). Other muscles were stimulated (quiescent rat uterus and frog rectus abdominis). Intravenous injection of the extract to anaesthetized cats lowered the blood pressure in a dose-response manner. The inhibitory effects were resistant to a number of standard receptor blockers but the hypotensive influence was partially blocked by atropine and the tonic effects on rat uterus were partially reduced by hydrocortisone and indomethacin.Entities:
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Year: 1991 PMID: 2023432 DOI: 10.1016/0378-8741(91)90009-3
Source DB: PubMed Journal: J Ethnopharmacol ISSN: 0378-8741 Impact factor: 4.360