-Extract ion of the stems and leaves of Piper ridleyi with ether afforded N-isobutyl-15-(3',4'-methylenedioxyphenyl)-2E,4E,12E-pentadecatrienamide (ridleyamide), as well as the known amide, retrofractamide, and sterols. I N T R O D U C T I O N A variety of unsaturated isobutylamides have been isolated from plant sources, in particular from members of the genus Piper [1]. These compounds are of ...

This paper aims to determine the hydrogeochemical characteristics of Fez-Meknes free water table thought monitoring physicochemical analyses nine samples during year 2013, 2016, and 2019. table, which circulates in plio-quaternary formations, is generally supplied by rainfall infiltration, irrigation returns also lateral inflow unconfined liasic Middle Atlas Tabular. Analyses were performed for...

Abstract The groundwater in the Rutba-Dhabaa region Western Iraq has been studied using multiple statistical methods. These methods proved successful giving a hydrochemical description of water as an alternative to Piper scheme, and therefore they can be relied upon future studies, whether for or surface water. is hard percentage calcium high, due type rocks incubating that groundwater, represe...

Hypercholesterolemia is a dominant risk factor for atherosclerosis and cardiovascular diseases. In the present study, the putative antihypercholesterolemic and antioxidative properties of an ethanolic extract of Piper betle and of its active constituent, eugenol, were evaluated in experimental hypercholesterolemia induced by a single intraperitoneal injection of Triton WR-1339 (300 mg/kg b.wt) ...

There is an increasing interest to identify plant-derived natural products with antitumor activities. In this work, we have studied the effects of aqueous leaf extracts from Amazonian Vismia and Piper species on human hepatocarcinoma cell toxicity. Results showed that, depending on the cell type, the plants displayed differential effects; thus, Vismia baccifera induced the selective killing of ...

Piper nigrum leaves were collected from five locations from Kerala within a radius of 150 km, altitudinal variance of 1000m and annual rainfall variance of 1400mm. The extracted Piper nigrum leaf oil was profiled using a GC-MS, Beta Caryophyllene was the only constituent that was present in all the five locations, of which the highest concentration was noted in the high altitude region of Idukk...

Signals from roots of resistant (cv. Maris Piper) and susceptible (cv. Désirée) potato cultivars during invasion by second stage juveniles (J2s) of the potato cyst nematode, Globodera rostochiensis, were investigated. Novel experimental chambers enabled the recording of electrophysiological responses from roots during nematode invasion. The root cell membrane potentials were maintained througho...

To study the chemical constituents of Piper wallichii (Miq.) Hand.-Mazz., and to explore the effects of extractive on proliferation and telomerase activity of human tongue squamous cell carcinoma Tca83 cells and its anti-cancer mechanisms. Sephadex LH-20 and several other column chromatography techniques were employed for separation of chemical constituents from Piper wallichii (Miq.) Hand.Mazz...

Piper nigrum leaves were collected from five locations from Kerala within a radius of 150 km, altitudinal variance of 1000m and annual rainfall variance of 1400mm. The extracted Piper nigrum leaf oil was profiled using a GC-MS, Beta Caryophyllene was the only constituent that was present in all the five locations, of which the highest concentration was noted in the high altitude region of Idukk...

Piper nigrum leaves were collected from five locations from Kerala within a radius of 150 km, altitudinal variance of 1000m and annual rainfall variance of 1400mm. The extracted Piper nigrum leaf oil was profiled using a GC-MS, Beta Caryophyllene was the only constituent that was present in all the five locations, of which the highest concentration was noted in the high altitude region of Idukk...