Estrogenic and progestagenic effects of extracts of Justicia pectoralis Jacq., an herbal medicine from Costa Rica used for the treatment of menopause and PMS.
Estrogenic and progestagenic effects of extracts of Justicia pectoralis Jacq., an herbal medicine from Costa Rica used for the treatment of menopause and PMS.
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Justicia pectoralis Jacq.（一种来自哥斯达黎加的草药，用于治疗更年期和经前综合症）提取物的雌激素和孕激素作用。
DOI：
10.1016/j.maturitas.2010.04.001
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发表时间：
2010
期刊：
影响因子：
4.9
通讯作者：
Mahady,GailB
中科院分区：
文献类型：
--
作者：
Locklear,TracieD;Huang,Yue;Frasor,Jonna;Doyle,BrianJ;Perez,Alice;Gomez-Laurito,Jorge;Mahady,GailB
OBJECTIVESTo investigate the biological activities of Justicia pectoralis Jacq. (Acanthaceae), an herbal medicine used in Costa Rica (CR) for the management of menopausal symptoms and dysmenorrhea.STUDY DESIGNThe aerial parts of J. pectoralis were collected, dried and extracted in methanol. To establish possible mechanisms of action of JP for the treatment of menopausal symptoms, the estrogenic and progesterone agonists, and antiinflammatory activities were investigated.MAIN OUTCOME MEASURESThe methanol extract (JP-M) was tested in ER and PR binding assays, a COX-2 enzyme inhibition assay, the ERβ-CALUX assay in U2-OS cells, as well as reporter and endogenous gene assays in MCF-7 K1 cells.RESULTSThe JP-M extract inhibited COX-2 catalytic activity (IC504.8μg/mL); bound to both ERα and ERβ (IC5050μg/mL and 23.1μg/mL, respectively); induced estrogen-dependent transcription in the ERβ-CALUX; and bound to the progesterone receptor (IC5022.8μg/mL). The extract also modulated the expression of endogenous estrogen responsive genes pS2, PR, and PTGES in MCF-7 cells at a concentration of 20μg/mL. Activation of a 2 ERE-construct in transiently transfected MCF-7 cells by the extract was inhibited by the estrogen receptor antagonist ICI 182,780, indicating that the effects were mediated through the estrogen receptor. Finally, the extract weakly enhanced the proliferation of MCF-7 cells, however this was not statistically significant as compared with DMSO controls.CONCLUSIONSExtracts of J. pectoralis have estrogenic, progestagenic and anti-inflammatory effects, and thus have a plausible mechanism of action, explaining its traditional use for menopause and PMS.
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DOI：
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