piper/protirakovinový

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In vivo antitumor and antimetastatic effects of flavokawain B in 4T1 breast cancer cell-challenged mice.

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Flavokawain B (FKB) is a naturally occurring chalcone that can be isolated through the root extracts of the kava-kava plant (Piper methysticum). It can also be synthesized chemically to increase the yield. This compound is a promising candidate as a biological agent, as it is reported to be involved

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

Anti-inflammatory and antitumour activity of various extracts and compounds from the fruits of Piper longum L.

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To explore effective extraction method and to find active constituents, we investigated the biological activity of three extracts and isolated active compounds from the fruits of Piper longum L.Three extracts from the fruits were obtained by reflux,

4-Nerolidylcatechol analogues as promising anticancer agents.

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4-Nerolidylcatechol (1) is an isolated compound from Pothomorphe umbellata L. (Piperaceae) with promising antitumor cells properties. However it presents lability under light and room temperatures. Many efforts have been directed towards discovering anticancer agents endowed with cytotoxic

Anticancer activities against cholangiocarcinoma, toxicity and pharmacological activities of Thai medicinal plants in animal models.

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BACKGROUND Chemotherapy of cholangiocarcinoma (CCA), a devastating cancer with increasing worldwide incidence and mortality rates, is largely ineffective. The discovery and development of effective chemotherapeutics is urgently needed. METHODS The study aimed at evaluating anticancer activities,

In vitro screening for anthelmintic and antitumour activity of ethnomedicinal plants from Thailand.

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OBJECTIVE This study screened for anthelmintic and/or antitumour bioactive compounds from Thai indigenous plants and evaluated effectiveness against three different worm species and two cancer cell lines. METHODS Methylene chloride and methanol extracts of 32 plant species were screened for in vitro

Antitumor activity of NPB001-05, an orally active inhibitor of Bcr-Abl tyrosine kinase.

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Scientists are constantly searching for phytochemical compounds with anti-cancer activity. In this study, activity of plant extract NPB001-05 from Piper betle was tested on human chronic myelogenous leukemia (CML) xenograft models. NPB001-05 was active when dosed orally (500 mg/kg) once or twice a

Piperlongumine potentiates the antitumor efficacy of oxaliplatin through ROS induction in gastric cancer cells.

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Oxaliplatin is one of the most commonly used chemotherapeutic agents in the treatment of various cancers, including gastric cancer. It has, however, a narrow therapeutic index due to its toxicity and the occurrence of drug resistance. Therefore, there is a pressing need to develop

Kava constituents exert selective anticancer effects in oral squamous cell carcinoma cells in vitro

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Kava is a beverage made from the ground roots of the plant Piper Methysticum. Active compounds of Kava have previously been demonstrated to exert an antiproliferative effect through cell cycle arrest and promotion of apoptosis. Our aim was to investigate the in vitro effects of the main constituents

Piper betel Linn (betel vine), the maligned Southeast Asian medicinal plant possesses cancer preventive effects: time to reconsider the wronged opinion.

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Since antiquity, Piper betel Linn (betel vine; family Piperaceae) has been an important medicinal agent in the various traditional and folk systems of medicine in Southeast Asia countries. The leaves are the most valued plant part and in the past were routinely used as a chewing agent to prevent

Anticancer and Anti-Inflammatory Activities of a Standardized Dichloromethane Extract from Piper umbellatum L. Leaves.

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Despite the advances in anticancer drug discovery field, the worldwide cancer incidence is remarkable, highlighting the need for new therapies focusing on both cancer cell and its microenvironment. The tumor microenvironment offers multiple targets for cancer therapy, including inflammation.

Tumour reducing and anticarcinogenic activity of selected spices.

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Tumour reducing activity of extracts of eight commonly used spices in India were studied in mice transplanted intraperitoneally with Ehrlich ascites tumour. Oral administration of extracts of black pepper, asafoetida, pippali and garlic could increase the percentage of life span in these mice by

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

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

Anticancer and Cancer Prevention Effects of Piperine-Free Piper nigrum Extract on N-nitrosomethylurea-Induced Mammary Tumorigenesis in Rats.

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Piper nigrum (P. nigrum) is commonly used in traditional medicine. This current study aimed to investigate the anticancer and cancer preventive activity of a piperine-free P. nigrum extract (PFPE) against breast cancer cells and N-nitrosomethylurea (NMU)-induced mammary tumorigenesis in rats. The

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