5 research outputs found

    The Effect of Single-Dose Albendazole on the Prevalence of SoilTransmitted Helminth Infections and Nutritional Status of Children in Perokonda Village, Southwest Sumba

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    Perokonda Village located in Sumba Island is one of the most underdeveloped regions in Indonesia with high risk of soil-transmitted helminthes (STH) infections. These parasites could affect nutritional status of the subjects. This study was aimed to know the nutritional status and to evaluate the effectiveness of treatment using singledose albendazole on the prevalence of STH infections in Perokonda Village. This study used a pre-post design. Data were collected twice on August 2015 and January 2016. Data of STH infections were obtained from stool samples examined under light microscope. Nutritional status was assessed by determining Z-score in accordance with WHO chart. A total of 66 children were included ranging between 1-12 years old. This study showed that before treatment, subjects with normal nutritional status were 84,8% and 15,2% were underweight. After treatment, subjects with normal nutritional status declined to 75,8%, subjects who were underweight increased to 19,7%, and 4,5% were severely underweight. The result also showed that prevalence of STH was still high after treatment. Prevalence of A.lumbricoides infections significantly decreased (McNemar test, p=0,001), while prevalence of T.trichiura and hookworm infections increased. In conclusion, single dose albendazole significantly reduced the infections of A.lumbricoides, but it did not reduce the prevalence of T.trichiura and hookworm infections. Further study is needed to measure the effectiveness of treatment using triple dose albendazole for STH infection and its association with children’s nutritional status in Perokonda Village

    Safeguarding Imperiled Biodiversity and Evolutionary Processes in the Wallacea Center of Endemism

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    \ua9 2022 The Author(s).Wallacea - the meeting point between the Asian and Australian fauna - is one of the world\u27s largest centers of endemism. Twenty-three million years of complex geological history have given rise to a living laboratory for the study of evolution and biodiversity, highly vulnerable to anthropogenic pressures. In the present article, we review the historic and contemporary processes shaping Wallacea\u27s biodiversity and explore ways to conserve its unique ecosystems. Although remoteness has spared many Wallacean islands from the severe overexploitation that characterizes many tropical regions, industrial-scale expansion of agriculture, mining, aquaculture and fisheries is damaging terrestrial and aquatic ecosystems, denuding endemics from communities, and threatening a long-term legacy of impoverished human populations. An impending biodiversity catastrophe demands collaborative actions to improve community-based management, minimize environmental impacts, monitor threatened species, and reduce wildlife trade. Securing a positive future for Wallacea\u27s imperiled ecosystems requires a fundamental shift away from managing marine and terrestrial realms independently

    The Effect of Single-Dose Albendazole on the Prevalence of SoilTransmitted Helminth Infections and Nutritional Status of Children in Perokonda Village, Southwest Sumba

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    Perokonda Village located in Sumba Island is one of the most underdeveloped regions in Indonesia with high risk of soil-transmitted helminthes (STH) infections. These parasites could affect nutritional status of the subjects. This study was aimed to know the nutritional status and to evaluate the effectiveness of treatment using singledose albendazole on the prevalence of STH infections in Perokonda Village. This study used a pre-post design. Data were collected twice on August 2015 and January 2016. Data of STH infections were obtained from stool samples examined under light microscope. Nutritional status was assessed by determining Z-score in accordance with WHO chart. A total of 66 children were included ranging between 1-12 years old. This study showed that before treatment, subjects with normal nutritional status were 84,8% and 15,2% were underweight. After treatment, subjects with normal nutritional status declined to 75,8%, subjects who were underweight increased to 19,7%, and 4,5% were severely underweight. The result also showed that prevalence of STH was still high after treatment. Prevalence of A.lumbricoides infections significantly decreased (McNemar test, p=0,001), while prevalence of T.trichiura and hookworm infections increased. In conclusion, single dose albendazole significantly reduced the infections of A.lumbricoides, but it did not reduce the prevalence of T.trichiura and hookworm infections. Further study is needed to measure the effectiveness of treatment using triple dose albendazole for STH infection and its association with children’s nutritional status in Perokonda Village

    Morphological and genetic diversity of Tetragonisca angustula (Hymenoptera: Apidae) in Cundinamarca, Colombia

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    IlustracionesTetragonisca angustula es una especie del Neotrópico, conocida como abeja angelita, que se ha adaptado a ambientes con alta presión antrópica por lo que es la especie más ampliamente utilizada para cría artificial. Es posible que su amplia distribución geográfica, desde México hasta Argentina, posibilite diferentes poblaciones con características genéticas distintivas que les permiten adaptarse a los ambientes naturales que ocupan. Se presentan aquí para ocho poblaciones de abejas forrajeras de Tetragonisca angustula de Colombia, los resultados de análisis utilizando morfometría lineal de caracteres morfológicos asociados con percepción visual, olfativa y de motricidad, así como los cambios en el tamaño y forma alar utilizando morfometría geométrica. Estos resultados se complementan con el análisis de secuencias de la región minibarcode de la subunidad I del gen citocromo oxidasa I para Colombia obtenidas en este estudio y las registradas para Brasil y Costa Rica. De manera general, se encontró que la longitud de la tibia posterior y la distancia interantenal constituyen caracteres robustos para discriminar entre poblaciones de la abeja angelita. De manera general, con todos los análisis, las poblaciones de Villavicencio, Meta y Medellín, Antioquia se caracterizaron particularmente y aparecen como poblaciones separadas de las demás y claramente distinguibles por rasgos morfológicos y moleculares, en tanto que las poblaciones de Cundinamarca, con excepción de Fusagasugá formaron un macro-grupo. Medellín fue la población con mayor riqueza genética seguida de Villavicencio, en tanto que Fusagasugá siempre estuvo separada de las demás poblaciones de Cundinamarca cuando se analizó el ADNmt de sus poblaciones. La altitud, el tipo de nido del cual provienen las abejas, ya sea natural o de caja racional, pero de manera particular, la ubicación geográfica de poblaciones separadas por las cordilleras, constituyeron factores fundamentales moldeando los caracteres morfológicos y genéticos de las poblaciones estudiadas. Debido a que se reconocieron poblaciones claramente diferenciadas, debe evitarse el traslado de nidos y preservar las poblaciones naturales de la abeja angelita en Colombia como parte de su soberanía en biodiversidad y territorio. (Texto tomado de la fuente)Tetragonisca angustula is a species of the neotropics, known as little angel bee, which has adapted to environments with high anthropic pressure making it the most widely used species for artificial breeding. It is possible that their wide geographical distribution, from Mexico to Argentina, allows different populations with distinctive genetic characteristics that allow them to adapt to the natural environments they occupy. Presented here for eight populations of forage bees of Tetragonisca angustula of Colombia, the results of analysis using linear morphometry of morphological characters associated with visual, olfactory and motor perception, as well as changes in size and wing shape using geometric morphometry. These results are complemented by the analysis of sequences of the minibarcode region of subunit I of cytochrome oxidase I gene for Colombia obtained in this study and those recorded for Brazil and Costa Rica. In general, it was found that the length of the posterior tibia and the interantenal distance constitute robust characters to discriminate between populations of the little angel bee In general, with all the analyses, the populations of Villavicencio, Meta and Medellín, Antioquia were particularly characterized and appear as separate populations from the others and clearly distinguishable by morphological and molecular traits, while the populations of Cundinamarca, with the exception of Fusagasugá, formed a macro-group. Medellin was the population with the highest genetic richness followed by Villavicencio, while Fusagasugá was always separated from the other populations of Cundinamarca when the mtDNA of its populations was analyzed. The altitude, the type of nest from which bees come, either natural or rational box, but in particular, the geographical location of populations separated by mountain ranges, were fundamental factors shaping the morphological and genetic characteristics of the populations studied. Because clearly differentiated populations were recognized, nest relocation should be avoided and the natural populations of the little angel bee in Colombia should be preserved as part of its sovereignty over biodiversity and territory.MaestríaMagíster en Ciencias - BiotecnologíaÁrea curricular Biotecnologí
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