bixa orellana/anticancéreux

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Absence of carcinogenic and anticarcinogenic effects of annatto in the rat liver medium-term assay.

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Annatto (Bixa orellana L.) is a natural food colorant extensively used in many processed foods, especially dairy products. The lower cost of production and the low toxicity, make annatto a very attractive and convenient pigment in substitution to the many synthetic colorants. In the present study we

Antigenotoxic and antimutagenic potential of an annatto pigment (norbixin) against oxidative stress.

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Carotenoids are 40-carbon molecules with conjugated double bonds, making them particularly effective for quenching free radicals. They have always been believed to possess anticancer properties, which could be due to their antioxidant potential. Norbixin is an unusual dicarboxylic water-soluble

Semi-preparative HPLC purification of δ-tocotrienol (δ-T3) from Elaeis guineensis Jacq. and Bixa orellana L. and evaluation of its in vitro anticancer activity in human A375 melanoma cells.

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In this work, we report a rapid and convenient HPLC-UV-DAD method for the isolation of δ-T3 on semi-preparative scale from two different vitamin E rich processed, commercially available products obtained from the fruits of Elaeis guineensis Jacq. (oil palm) and from the seeds of Bixa orellana L.

Bixa orellana L. by-products' fractions from an industrial process: antiproliferative activity on tumor cells and chemical profile

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This study evaluated the phytochemical characterization of Bixa orellana (BO extract) unsaponifiable extract and resulting fractions (F fraction - FF, Geranyl fraction - GF and R fraction- RF) obtained as by-products of an industrial process investigating in vitro antiproliferative

Evaluation of the clastogenicity and anticlastogenicity of the carotenoid bixin in human lymphocyte cultures.

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Carotenoids are regarded as effective antioxidants, antimutagenic and anticarcinogenic agents. Annatto, a red-yellow extract obtained from seeds of Bixa orellana L. is a mixture of several carotenoids and one of them bixin (BXN), is known as its major coloring compound. Studies on BXN clastogenicity

Biochemical behaviour of norbixin during in vitro DNA damage induced by reactive oxygen species.

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Naturally occurring antioxidants such as carotenoids are extensively studied for their potential in reducing the risk for cancer and other chronic diseases. In the present study, the radical-scavenger activity of the food additive norbixin, a water-soluble carotenoid extracted from Bixa orellana

Heterologous biosynthesis and manipulation of crocetin in Saccharomyces cerevisiae.

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BACKGROUND Due to excellent performance in antitumor, antioxidation, antihypertension, antiatherosclerotic and antidepressant activities, crocetin, naturally exists in Crocus sativus L., has great potential applications in medical and food fields. Microbial production of crocetin has received

Protective effect of bixin on cisplatin-induced genotoxicity in PC12 cells.

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Bixin is the main carotenoid found in annatto seeds (Bixa orellana L.) and is responsible for their reddish-orange color. The antioxidant properties of this compound are associated with its ability to scavenge free radicals, which may reduce damage and protect tissues against toxicity caused by

Bixin Triggers Apoptosis of Human Hep3B Hepatocellular Carcinoma Cells: An Insight to Molecular and IN SILICO Approach.

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Hepatocellular carcinoma (HCC) is the most common liver cancer and is known to be resistant to conventional chemotherapy. The use of herbal medicine and supplements has increased over recent decades following side effects and resistant to conventional chemotherapy. The seeds of Bixa orellana L.

Bixin ameliorates high fat diet-induced cardiac injury in mice through inflammation and oxidative stress suppression.

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Diabetic cardiomyopathy is known as an essential complication of diabetes, a main reason leading to mortality for diabetic patients, and novel therapeutic strategies for treatment are urgently required. Bixin (BX), isolated from the seeds of Bixa orellana, is a carotenoid, possessing

Bixin, an apocarotenoid isolated from Bixa orellana L., sensitizes human melanoma cells to dacarbazine-induced apoptosis through ROS-mediated cytotoxicity.

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Cutaneous melanoma has a high capacity to metastasize and significant resistance to conventional therapeutic protocols, which makes its treatment difficult. The combination of conventional drugs with cytostatic molecules of low toxicity has been shown to be an interesting alternative for

Carotenoid Derivates in Achiote (Bixa orellana) Seeds: Synthesis and Health Promoting Properties.

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Bixa orellana (family Bixaceae) is a neotropical fast growing perennial tree of great agro-industrial value because its seeds have a high carotenoid content, mainly bixin. It has been used since pre-colonial times as a culinary colorant and spice, and for healing purposes. It is currently used as a

Annatto constituent cis-bixin has selective antimyeloma effects mediated by oxidative stress and associated with inhibition of thioredoxin and thioredoxin reductase.

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In pursuit of the anticancer effects of seeds of the rain forest plant Bixa orellana (annatto), we found that its constituent cis-bixin induced cytotoxicity in a wide variety of tumor cell lines (IC(50) values from 10 to 50 microM, 24-h exposures) and, importantly, also selectively killed freshly

Study on the mutagenicity and antimutagenicity of a natural food colour (annatto) in mouse bone marrow cells.

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Most manufactured foods contain chemicals added as a deliberate part of the manufacturing process. The aims of the present study were to evaluate the mutagenicity and antimutagenicity of annatto, a natural pigment extracted from the Bixa orellana L. and widely used as a colorant in foods. The

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