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Permanent URI for this collectionhttps://hdl.handle.net/11285/345284
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- Molecular evolution and expression profile of the chemerine encoding gene RARRES2 in baboon and chimpanzee(Springer Open, 12/06/2015) González Alvarez, Rafael; Garza Rodríguez, María; Delgado Enciso, Iván; Treviño Alvarado, Víctor M.; Canales Del Castillo, Ricardo; Martínez De Villarreal, Laura E.; Lugo Trampe, Ángel; Tejero, María E.; Schlabritz Loutsevitch, Natalia E.; Rocha Pizaña, María; Cole, Shelley A.; Reséndez Pérez, Diana; Moises Alvarez, Mario; Comuzzie, Anthony G.; Barrera Saldaña, Hugo A.; Garza Guajardo, Raquel; Barboza Quintana, Oralia; Rodríguez Sánchez, Irám P.Abstract Background Chemerin, encoded by the retinoic acid receptor responder 2 (RARRES2) gene is an adipocytesecreted protein with autocrine/paracrine functions in adipose tissue, metabolism and inflammation with a recently described function in vascular tone regulation, liver, steatosis, etc. This molecule is believed to represent a critical endocrine signal linking obesity to diabetes. There are no data available regarding evolution of RARRES2 in non-human primates and great apes. Expression profile and orthology in RARRES2 genes are unknown aspects in the biology of this multigene family in primates. Thus; we attempt to describe expression profile and phylogenetic relationship as complementary knowledge in the function of this gene in primates. To do that, we performed A RT-PCR from different tissues obtained during necropsies. Also we tested the hypotheses of positive evolution, purifying selection, and neutrality. And finally a phylogenetic analysis was made between primates RARRES2 protein. Results RARRES2 transcripts were present in liver, lung, adipose tissue, ovary, pancreas, heart, hypothalamus and pituitary tissues. Expression in kidney and leukocytes were not detectable in either species. It was determined that the studied genes are orthologous. Conclusions RARRES2 evolution fits the hypothesis of purifying selection. Expression profiles of the RARRES2 gene are similar in baboons and chimpanzees and are also phylogenetically related.
- Reference values for amino acids and acylcarnitines in peripheral blood in Quarter horses and American Miniature horses(Springer Open, 29/09/2015) Rodríguez-Sánchez, Irám P.; Treviño Alvarado, Víctor M.; del Rosario Torres-Sepúlveda, María; López Saldaña, Liliana A.; Ponce García, Gustavo; López Uriarte, Graciela A.; del Consuelo Ruiz-Herrera, María; Zamora Ávila, Diana E.; Villarreal Pérez, Jesús Z.; Dávalos Aranda, Guillermo; Martínez de Villarreal, Laura E.Abstract Background Free amino acids and acylcarnitines circulating in the blood can be used for diagnosis for metabolic illness and imbalances. To date, the normal reference ranges of amino acids and acylcarnitines in horse peripheral blood have not been established. In this study, the concentrations of 12 amino acids and 26 acylcarnitines were determined by tandem mass spectrometry in complete blood from 100 healthy horses (50 Quarter horses (QH) [23 males and 27 females] and 50 American Miniature horses (AMH) [15 males and 35 females]) with no signs of metabolic disease. The means and standard deviations were determined and data statistically analyzed. Findings Concentrations of short, medium, and long chain acylcarnitines were significantly higher in male AMH than in male QH. The concentrations of the amino acids alanine, arginine, glycine, proline (glycogenic), and leucine (ketogenic) were higher in the QH than in the AMH. Female AMH had higher concentrations of propionylcarnitine, leucine, proline, arginine, and ornithine than female QH. Conclusions Normal reference ranges of amino acids and acylcarnitines were established for AMH and QH. Significant differences were found in concentration of these compounds between breeds and gender.