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      Actividad biológica de extractos metanólicos de Heliotropium amplexicaule Translated title: Biological activity of methanol extracts by Heliotropium amplexicaule

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          Abstract

          Heliotropium amplexicaule es una planta perteneciente a la familia Boraginacea con antecedentes de contenido de compuestos con interés farmacológico. En este estudio se investigó la actividad biológica de los extractos metanólicos de raíz, tallo, flor y hojas de H. amplexicaule sobre diferentes microorganismos. Los resultados mostraron un efecto amebicida significativo de los extractos de raíz, tallo, flor y hojas sobre Entamoeba histolytica con CI50 de 2, 8, 36 y 114.2 μg/mL respectivamente; no mostraron actividad sobre las bacterias y dermatofitos probados. La citotoxicidad obtenida para raíz, tallo, hoja y flor sobre la línea celular Vero fue CI50 de: 250, 200, 175 y 150 μg/mL respectivamente; y la toxicidad para todos los extractos sobre A. salina fue de LD50 > 1,000 μg/mL.

          Translated abstract

          Heliotropium amplexicaule is a plant belonging to the family Boraginacea with a content background of pharmacological interest compounds. In this study we have researched the biological activity of the methanol extracts of root, stem, flower and leaves of H. amplexicaule against different microorganisms. The results showed a significant amebicide effect on Entamoeba histolytica with IC50 of 2, 8, 36 and 114.2 μg/mL (root> stem> flower> leaf) they did not show any effect on bacteria and dermatophytes tested. On the Vero cell line showed IC50: 250, 200, 175 and 150 μg/mL (root, stem, leaf, and flower). The toxicity on A. saline was LD50> 1,000 μg/mL.

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              Acute toxicity and mutagenic activity of Mexican plants used in traditional medicine.

              The present work was undertaken to determine safety parameters of selected Mexican medicinal plants chosen on the basis of their frequency of medicinal use and commercial importance. The medicinal herbs included Amphipteryngium adstringens, Hintonia standleyana, Hintonia latiflora, Piper sanctum, Haemathoxylon brasiletto, Iostephane heterophylla, Valeriana procera, Arracacia tolucensis, Brickellia veronicaefolia, Scaphyglottis livida, Exostema caribaeum, Hippocratea excelsa, Ligusticum porteri, Poliomintha longiflora and Gnaphalium sp. In the acute toxicity studies in mice performed according to the Lorke procedure, Exostema caribaeum, Hippocratea excelsa, Ligusticum porteri and Poliomintha longiflora were the most toxic with LD(50) values between 1085 and 2mg/kg. The Ames test revealed that Gnaphalium sp. and Valeriana procera extracts induced mutations of S. typhimurium TA98 with or without the S9 microsomal fraction, and TA100 in the presence of the enzymatic fraction, respectively. The tincture of Valeriana procera, however, was non-mutagenic. Finally, in the Artemia salina lethality test Brickellia veronicaefolia, Arracacia tolucensis, Poliomintha longiflora and Piper sanctum caused significant mortality of the crustacean larvae with LC(50) in the range of 37-227 microg/mL.
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                Author and article information

                Journal
                rmcf
                Revista mexicana de ciencias farmacéuticas
                Rev. mex. cienc. farm
                Asociación Farmacéutica Mexicana A.C. (México, DF, Mexico )
                1870-0195
                September 2013
                : 44
                : 3
                : 19-23
                Affiliations
                [01] San Nicolás de los Garza Nuevo León orgnameUniversidad Autónoma de Nuevo León orgdiv1Facultad de Ciencias Biológicas México
                [02] Monterrey Nuevo León orgnameInstituto Tecnológico y de Estudios Superiores de Monterrey orgdiv1Escuela de Medicina y Ciencias de la Salud México
                Article
                S1870-01952013000300003 S1870-0195(13)04400300003
                f420a258-5093-4f33-9fd1-30c796e70182

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

                History
                : 20 August 2013
                : 21 November 2012
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 24, Pages: 5
                Product

                SciELO Mexico

                Categories
                Trabajos científicos

                E. histolytica,Boraginacea,H. amplexicaule
                E. histolytica, Boraginacea, H. amplexicaule

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