Moehringia trinervia
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ABSTRACT:
PROVIDER: PRJNA1117163 | ENA |
REPOSITORIES: ENA
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Project description:CONTEXTPiqueria trinervia Cav. (Asteraceae) is a plant species with a long history in traditional medicine to cure diarrhoea and other digestive disorders.OBJECTIVEThe study investigates the antigiardial activity of piquerol, trinervinol, red oil and two fractions (F1 and F2) from P. trinervia.MATERIALS AND METHODSP. trinervia was collected in the Ajusco in Mexico City. Aerial parts were ground and mixed with water to obtain the extract, which was treated with dichloromethane to isolate piquerol and trinervinol (P & T). Remnants were the red oil, fractions 1 and 2 (RO, F1 & F2). Trophozoites of Giardia intestinalis were treated with P, T, RO, F1 and F2 at different concentrations (0.78-200??g/mL) for 48?h. Antigiardial activity was measured using the methylene blue reduction, and the cytotoxicity assayed on human fibroblasts and Vero cells by reduction of tetrazolium salts.RESULTSTrinervinol and piquerol showed antigiardial activity with an IC50?=?2.03 and 2.42??g/mL, and IC90?=?13.03 and 8.74??g/mL, respectively. The concentrations of trinervinol (CC50?=?590??g/mL) and piquerol (CC50?=?501??g/mL) were not cytotoxic to human fibroblasts.CONCLUSIONSCompounds from P. trinervia showed antigiardial activity; to enhance this activity, piquerol and trinervinol can be chemically modified.
| S-EPMC6130510 | biostudies-literature
Project description:BackgroundInflammation is a complex process as a response to several stimuli, such as infection, a chemical irritant, and the attack of a foreign body. Piquerol was isolated from Piqueria trinervia, and its anti-inflammatory activity was evaluated using in vivo and in vitro models.MethodsPiquerol is a monoterpene that was identified using NMR, FT-IR spectroscopy, and mass spectrometry analysis. The anti-inflammatory activity was tested in vivo in ear edema induced with TPA in mice. Piquerol was also tested on J774A.1 macrophages stimulated with lipopolysaccharide (LPS), and the levels of NO, NF-κB, TNF-α, IL-1β, IL-6, and IL-10 were determined using ELISA.ResultsThe results show that piquerol diminished ear edema (66.19%). At 150.51 µM, it also inhibited the levels of NO (31.7%), TNF-α (49.8%), IL-1β (69.9%), IL-6 (47.5%), and NF-κB (26.7%), and increased the production of IL-10 (62.3%). Piquerol has a membrane stabilization property in erythrocyte, and at 100 µg/mL, the membrane protection was of 86.17%.ConclusionsPiquerol has anti-inflammatory activity, and its possible mechanism of action is through the inhibition of pro-inflammatory mediators. This compound could be a candidate in the development of new drugs to treat inflammatory problems.
| S-EPMC9324079 | biostudies-literature