Genetic differentiation among populations of the blackfin goodea Goodea atripinnis

Central Mexico is characterized by a complex topography that is the result of historic and contemporary tectonic and climatic factors. These events have influenced the evolutionary history of numerous freshwater fishes in the region. Nonetheless, recent studies have shown that life¿history traits and ecological characteristics of species may influence dispersal capabilities and the degree of genetic connectivity. Goodea (Cyprinodontiformes: Goodeidae) is one of the most widely distributed and environmentally tolerant genera of goodeids. In this study, the authors analysed variation in the mitochondrial cytochrome b gene to evaluate the phylogeographic relationships, genetic structure, genetic diversity and demographic history of Goodea from across its distribution range. They found low genetic differentiation and identified shared haplotypes among several regions. Geographic segregation was found in samples southwest and northeast of the Lower Lerma region, with some internal isolated groups showing phylogeographic differentiation and unique haplotypes. The AMOVA best explained genetic structure when grouped by haplogroups rather than when grouped by recognized biogeographic regions. Several regions showed null genetic diversity, raising the possibility of dispersal mediated by humans. Finally, Bayesian Skyline Plot analysis showed a population expansion for the Southwest haplogroup, except for the Armería population and sub¿group II of the Northeast haplogroup. All this suggests a recent colonization of Goodea atripinnis throughout some of the biogeographic regions currently inhabited by this species.This work was partially supported by PRODEP, CIC‐UMSNH 2015‐2017 to O.D.D., U.S. National Science Foundation grant (DEB 1354930) to K.R.P. and Ministerio de Economía y Competitividad y FEDER, Spain (CGL2016‐75262‐P) to I.D

Estudio del estado nutricional de los ancianos de Cantabria Study of the nutritional status of elders in Cantabria

Introducción: El envejecimiento de la población representa uno de los retos más importantes desde el punto de vista biosanitario. Objetivo: Valorar el estado nutricional de las personas de 65 y más años de Cantabria. Métodos: Un total de 1605 personas fueron evaluadas por medio del MNA; a) en atención primaria (59,9% en la consulta y 4,7% en domicilios) y, b) en residencias de ancianos (35,4%). Resultados: La puntuación nutricional (PN) obtenida de la suma de los ítems del MNA fue 23,4 &plusmn; 4,1 para las mujeres y 24,4 &plusmn; 4 en los varones (p Introduction: Population ageing is a main concern under the biosanitary point of view. Aim: To assess the nutritional status of people 65 year-old and older in Cantabria (Spain) Method: A total of 1605 persons were studied by means of the MNA (Mini Nutritional Assessment); a) by primary care (59.9% in the unit, and 4.7% at home) and, b) in nursing homes (35.4%). Results: Nutritional score (NS) was 23.4 &plusmn; 4.1 for women and 24.4 &plusmn; 4 in males (p < 0.001). We emphasize the fact that 22.3% of people studied in the nursing homes were malnourished or at risk of malnutrition, compared with 14.2% of those studied at the unit, and only 3.3% of the home visited elders. The correlation between the value of the NS and the subjective estimation of nutrition status showed a high value (0.65). We emphasize the negative correlation (-0.53) between BNI value and the incidence of skin lesions. Conclusion: Our results highlight the importance of identifying malnutrition or its risk in elders in order to prevent the negative consequences of this deficiency