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      Sources of alpha-, beta-, gamma-, delta- and epsilon-carotenes: a twentieth century review Translated title: Fontes de alfa-, beta-, gama-, delta-, e epsilon-carotenos: uma revisão do século XX

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          Abstract

          Since humans cannot synthesize carotenoids, they depend upon the diet exclusively for the source of these micronutrients. It has claimed that they may alleviate chronic diseases such as cancers. The present communication constitutes a global review of the scientific literature on plants and others organisms that biosynthesize carotenoids, which include the series alpha-, beta-, gamma-, delta- and epsilon-carotenes. The results of the literature survey lists more than five hundred sources.

          Translated abstract

          Uma vez que os humanos não podem sintetizar carotenóides, dependem exclusivamente da dieta como fonte desses micronutrientes. Tem sido afirmado que eles podem aliviar doenças crônicas, tais como cânceres. O presente artigo constitui uma revisão global da literatura científica sobre plantas e outros organismos que biossintetizam carotenóides, que incluem as séries alfa-, beta-, gama-, delta-, e epsilon-carotenos. Os resultados das listas de pesquisa da literatura mostram mais de quinhentas fontes.

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          Vegetables, fruit, and cancer prevention: a review.

          In this review of the scientific literature on the relationship between vegetable and fruit consumption and risk of cancer, results from 206 human epidemiologic studies and 22 animal studies are summarized. The evidence for a protective effect of greater vegetable and fruit consumption is consistent for cancers of the stomach, esophagus, lung, oral cavity and pharynx, endometrium, pancreas, and colon. The types of vegetables or fruit that most often appear to be protective against cancer are raw vegetables, followed by allium vegetables, carrots, green vegetables, cruciferous vegetables, and tomatoes. Substances present in vegetables and fruit that may help protect against cancer, and their mechanisms, are also briefly reviewed; these include dithiolthiones, isothiocyanates, indole-3-carbinol, allium compounds, isoflavones, protease inhibitors, saponins, phytosterols, inositol hexaphosphate, vitamin C, D-limonene, lutein, folic acid, beta carotene, lycopene, selenium, vitamin E, flavonoids, and dietary fiber. Current US vegetable and fruit intake, which averages about 3.4 servings per day, is discussed, as are possible noncancer-related effects of increased vegetable and fruit consumption, including benefits against cardiovascular disease, diabetes, stroke, obesity, diverticulosis, and cataracts. Suggestions for dietitians to use in counseling persons toward increasing vegetable and fruit intake are presented.
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            A review of natural products with antileishmanial activity.

            Infections caused by protozoa of the genus Leishmania are a major worldwide health problem, with high endemicity in developing countries. The incidence of the disease has increased since the emergence of AIDS. In the absence of a vaccine, there is an urgent need for effective drugs to replace/supplement those in current use. The plant kingdom is undoubtedly valuable as a source of new medicinal agents. The present work constitutes a review of the literature on plant extracts and chemically defined molecules of natural origin showing antileishmanial activity. The review refers to 101 plants, their families, and geographical distribution, the parts utilized, the type of extract and the organism tested. It also includes 288 compounds isolated from higher plants and microorganisms, classified into appropriate chemical groups. Some aspects of recent antileishmanial-activity-directed research on natural products are discussed.
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              Plants with central analgesic activity.

              The present communication constitutes a global review on plant analgesic activity with special emphasis on those found in different parts of the world, including Brazil, which act on the central nervous system. One hundred and sixty six plants belonging to 79 families are reported.
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                Author and article information

                Journal
                rbfar
                Revista Brasileira de Farmacognosia
                Rev. bras. farmacogn.
                Sociedade Brasileira de Farmacognosia (Curitiba, PR, Brazil )
                0102-695X
                1981-528X
                March 2008
                : 18
                : 1
                : 135-154
                Affiliations
                [01] João Pessoa PB orgnameUniversidade Federal da Paraíba orgdiv1Laboratório de Tecnologia Farmacêutica Brazil
                Article
                S0102-695X2008000100023 S0102-695X(08)01800123
                10.1590/S0102-695X2008000100023
                5703d15b-4aa1-4e9b-8fb1-89317b526385

                This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

                History
                : 26 October 2007
                : 13 March 2007
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 337, Pages: 20
                Product

                SciELO Brazil


                alpha-Carotene,beta-carotene,gamma-carotene,delta-carotene,epsilon-carotene,carotenoids,cancer,review,alfa-Caroteno,beta-caroteno,gama-caroteno,delta-caroteno,épsilon-caroteno,carotensigmaides,câncer,revisão

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