Se evaluó las diferencias bioquímicas en el ámbito de la actividades proteolíticas y de la inhibición de la actividad proteolítica ensayas con proteínas de hojas de papa, entre los clones “resistentes“ (282LM87B, 220LM87B, 136LM86B y 662LM86B) y “susceptible“ (Revolución) a la mosca minadora Liriomyza huidobrensis, Blanchard (Díptera, Agromyzidae), una plaga perjudicial del cultivo de la papa (Solanum tuberosum spp) especialmente en lugares donde el uso de insecticidas es intenso. Las plantas de papa resistentes, y Revolución, fueron sometidas previamente al daño por el ataque de adultos de la mosca minadora (daño por mosca) o por herida con estilete (daño artificial), y para ser evaluados mediante el grado de inducción de las proteínas en las hojas. Entre los clones resistentes, se encontró importantes márgenes de variación de las actividades proteolíticas en ...

The tumor necrosis factor (TNF) is an important mediator of the inflammatory reactions; it seems to play a central roll in the pathogenesis of several chronic inflammatory diseases including the periodontitis. It has been demonstrated that different rates exist from TNF alpha in vitro and in vivo between the individuals, so it can be associated with the presence of certain genetic polymorphism. The purpose of this investigation is to study the degree of polymorphism of the gene TNF-alpha (-308G/A) in samples of adult Peruvian patients and analyze the relationship with periodontal processes. For the study 81 blood samples with anticoagulant EDTA of people between 25 and 52 years were collected (47,5 average ± 7,4). 11 of them were people who had severe periodontal processes (average 35,2 ± 2,3). There was a greater frequency of genotype GG (G alele for the gene TNF-alpha-308) of the 82,...

The tumor necrosis factor (TNF) is an important mediator of the inflammatory reactions; it seems to play a central roll in the pathogenesis of several chronic inflammatory diseases including the periodontitis. It has been demonstrated that different rates exist from TNF alpha in vitro and in vivo between the individuals, so it can be associated with the presence of certain genetic polymorphism. The purpose of this investigation is to study the degree of polymorphism of the gene TNF-alpha (-308G/A) in samples of adult Peruvian patients and analyze the relationship with periodontal processes. For the study 81 blood samples with anticoagulant EDTA of people between 25 and 52 years were collected (47,5 average ± 7,4). 11 of them were people who had severe periodontal processes (average 35,2 ± 2,3). There was a greater frequency of genotype GG (G alele for the gene TNF-alpha-308) of the 82,...