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Anticancer principles from medicinal piper ( hú jiāo) plants.

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The ethnomedical uses of Piper ( Hú Jiāo) plants as anticancer agents, in vitro cytotoxic activity of both extracts and compounds from Piper plants, and in vivo antitumor activity and mechanism of action of selected compounds are reviewed in the present paper. The genus Piper (Piperaceae) contains

Piper nigrum and piperine: an update.

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Black pepper (Piper nigrum L.) is a very widely used spice, known for its pungent constituent piperine. However, in addition to its culinary uses, pepper has important medicinal and preservative properties, and, more recently, piperine has been shown to have fundamental effects on p-glycoprotein and

Immunomodulatory and antitumor activity of Piper longum Linn. and piperine.

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Alcoholic extract of the fruits of the plant Piper longum and its component piperine was studied for their immunomodulatory and antitumor activity. Alcoholic extract of the fruits was 100% toxic at a concentration of 500 microg/ml to Dalton's lymphoma ascites (DLA) cells and 250 microg/ml to Ehrlich

Piper betle extracts exhibit antitumor activity by augmenting antioxidant potential.

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The present study was conducted to evaluate the methanolic extract of Piper betle leaves (MPBL) and its organic fractions with regard to antitumor activity against Ehrlich ascites carcinoma (EAC) in Swiss albino mice and to confirm their antioxidant activities. At 24 h post-intraperitoneal

Two new anticancer phenolic derivatives from leaves of Piper betle Linn.

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In this study, phytochemical analyses of the chloroform extract of Piper betle L. var. haldia and maghai, Piperaceae, leaves led to the isolation of two new phenolic derivatives: 1-n-decanoyl hydroxy-benzoic acid/1-n-decanoyl phenol (H2) and

Antioxidant activity of eugenol in Piper betel leaf extract.

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Extracts of Piper betel are used for the treatment of various ailments since ages due to its essential properties like antioxidant, anticancer, anti-allergic etc. In the present study antioxidant activity for Piper betel leaf extract and Eugenol was assessed. Eugenol was taken as

[Studies on some derivatives of crotepoxide--an antitumor constituent of Piper futokadzura].

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Through reactions of deacetylation and partial deacetylation with selected opening of epoxide ring, seven derivatives of crotepoxide (futoxide), a known antitumor constituent from Piper futokudzura, were prepared. Preliminary pharmacological tests showed that individual derivative possess

Anticancer activity studies of cubebin isolated from Piper cubeba and its synthetic derivatives.

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(-)-Cubebin, isolated from the seeds of Piper cubeba, and its five different types of derivatives (a total of 17), with varying functionalities, were tested for their in vitro anticancer activity against six human cancer cell lines (A549, K562, SiHa, KB, HCT116 and HT29) using MTT assay. Cubebin as

Antitumour efficacy of Piper tuberculatum and piplartine based on the hollow fiber assay.

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Piper tuberculatum, popularly known in Brazil as "jaborandi falso" and "pimenta darta", is widely used in folk medicine for the treatment of several diseases. In this study, the in vivo hollow fiber assay was used to investigate the antitumour efficacy of the crude extract and piplartine obtained

Alkaloids from piper: a review of its phytochemistry and pharmacology.

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OBJECTIVE Piper has been used for long timelike condiment and food, but also in traditional medicine around of the world. This work resumes the available and up to date work done on members of the Piperaceae family and their uses for therapeutic purposes. METHODS Information on Piper genus was

Medicinal Attributes of Lignans Extracted from Piper Cubeba: Current Developments.

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Lignans are a large class of natural products that have been isolated from many plants. They reveal diverse biological activities, especially antiviral and antitumor properties. From Piper cubeba, lignans of several classes can be isolated from the roots, rhizomes, stems, leaves, seeds, and fruits.

Intrinsic anticarcinogenic effects of Piper sarmentosum ethanolic extract on a human hepatoma cell line.

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BACKGROUND Piper sarmentosum, locally known as kaduk is belonging to the family of Piperaceae. It is our interest to evaluate their effect on human hepatoma cell line (HepG2) for the potential of anticarcinogenic activity. RESULTS The anticarcinogenic activity of an ethanolic extract from Piper

Cytotoxicity and selectiveness of Brazilian Piper species towards oral carcinoma cells.

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Oral squamous cell carcinoma (OSCC) is one of the ten most common types of cancer worldwide. Plants of the genusPiper are used in traditional medicine to treat cancer, and they have a vast diversity of phytochemicals with cytotoxic potential. Purpose and Study Design: In this work, we

Piperine production by endophytic fungus Colletotrichum gloeosporioides isolated from Piper nigrum.

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Many endophytic fungi have been reported with the biosynthetic potential to produce same or similar metabolites present in host plants. The adaptations that might have acquired by these fungi as a result of the long-term association with their host plants can be the possible basis of their

Diferuloylmethane augments the cytotoxic effects of piplartine isolated from Piper chaba.

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Natural compound based anticancer drug discovery is gaining interest against a wide variety of tumors. E-piplartine (trans-piplartine), a natural compound isolated from Piper chaba roots is examined against rat histiocytoma (BC-8), mouse embryonal carcinoma (PCC4), mouse macrophages (P388D1 and

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