Author: Juan Jose Alpuche Osorno

Analisis proteomico de la subunidad LsL1 de la lectina del Camaron Blanco del Golfo de México Litopenaeus setiferus

JUAN JOSE ALPUCHE OSORNO SARA MARIA PEREYRA LOPEZ MARIA CONCEPCION AGUNDIS MATA ARTURO EDGAR ZENTENO GALINDO (2005)

Se purificó por filtración en Sephacryl S-300 una subunidad de 84 kDa de la lectina de L. setiferus (LsL1), específica para azucares N-acetilados. Por dicroísmo circular se encontró que LsL1 contiene en su estructura secundaria 49% de hojas plegadas beta y 6.9% de alfa hélices. La secuencia de aminoácidos de la subunidad LsL1 se determinó por MALDI-TOF a partir de péptidos trípticos. Comparando los valores con la base de datos NCBInr (Swiss-Prot 2003/08/06), esta subunidad mostró 23% de similitud con el precursor hemocianina, proteína responsable de la respiración en crustáceos, que a su vez ha sido relacionada con la generación de péptidos de defensa; al alinear el péptido con otras proteínas involucradas con la defensa en crustáceos muestran una similitud del 80% con hemocianina, y profenoloxidasa, por lo que podemos asumir que las lectinas de esta especie participan en procesos de defensa.

Article

Veterinaria CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA

The effect of alpha males and shelter type on growth and survival of the longarm prawn Macrobrachium tenellum (Smith, 1871)

Rodolfo Benigno de los Santos Romero Marcelo Ulises García Guerrero JUAN JOSE ALPUCHE OSORNO Edilmar Cortés Jacinto (2018)

"The longarm river prawn Macrobrachium tenellum is extensively exposed to artisanal fisheries in its distribution range and have culture potential. However, its aggressiveness and territorial behavior limits its management in captivity. Because of this, it is neccesary to evaluate the effect of alpha males on regular males, as well as different kinds of shelters, to find how this affects growth and survival. For this, an experimental design was established in order to determine the effect of thos issues on growth of cultured juvenile prawns. Growth of prawns with no alpha males had no significant differences (P > 0.05). However, the interaction between shelter type and the hierarchical males revealed statistical differences (P < 0.05) in comparison with the rest in terms of survival. It is suggested that the effects on growth and survival caused by the social hierarchy of prawns and the use of shelters are part of a wider range of interactions that may be related ecologically, ethologically, and physiologically."

Article

Macrobrachium tenellum, freshwater shrimp, growth, survival, intraespecific relation, morphotypes BIOLOGÍA Y QUÍMICA CIENCIAS DE LA VIDA BIOLOGÍA ANIMAL (ZOOLOGÍA) CRECIMIENTO ANIMAL CRECIMIENTO ANIMAL

The Role of Platelets in Ischemic Conditioning.

Juan Jose Alpuche Osorno Luz Maria Quirino Vela José Sánchez Jonathan Yap Eduardo Lorenzo Perez Campos Hector Alejandro Cabrera Fuentes (2018)

Ischemic heart disease (IHD) is one of the leading causes of death and disability worldwide. Platelets, as the main regulators of hemostasis, are major players in acute myocardial ischemia/reperfusion injury (IRI). Additionally, platelets are modified by endogenous cardioprotective strategies such as ischemic preconditioning, postconditioning, and remote ischemic conditioning. In this article, we provide an overview of the functionional role of platelets in acute myocardial IRI, and highlight their potential as targets for cardioprotection to improve health outcomes in patients with IHD.

Article

Isquemia Plaquetas Condición isquémica Cardioprotección MEDICINA Y CIENCIAS DE LA SALUD