The influence of hypobaric hypoxia on protein oxidation in lungs, heart, liver, kidneys and testicles of high altitude native guinea pigs (Huancavelica, 3660 m) in comparison to sea level (Lima, 150 m) native guinea pigs was evaluated. The concentration of protein hydroperoxides (POOH) and carbonyl groups (GC) as markers of protein oxidation, as well as total thiols (TT) concentration, powerful reducing agents that act as live antioxidants were determined. The results showed low concentration of GC in high altitude guinea pig testicles, as compared to what was found at sea level. POOH low concentration was also found in high altitude guinea pig heart with respect to that found at sea level. TT concentration was lower in high altitude heart and lungs in relation to the concentrations found at sea level. Contrary to these results, higher concentrations of POOH in high altitude guinea pig l...

The influence of hypobaric hypoxia on protein oxidation in lungs, heart, liver, kidneys and testicles of high altitude native guinea pigs (Huancavelica, 3660 m) in comparison to sea level (Lima, 150 m) native guinea pigs was evaluated. The concentration of protein hydroperoxides (POOH) and carbonyl groups (GC) as markers of protein oxidation, as well as total thiols (TT) concentration, powerful reducing agents that act as live antioxidants were determined. The results showed low concentration of GC in high altitude guinea pig testicles, as compared to what was found at sea level. POOH low concentration was also found in high altitude guinea pig heart with respect to that found at sea level. TT concentration was lower in high altitude heart and lungs in relation to the concentrations found at sea level. Contrary to these results, higher concentrations of POOH in high altitude guinea pig l...

La presente investigación tuvo por objetivo, relacionar el tiempo de lactancia materna exclusiva y el desarrollo del arco dentario superior en los niños de 3 a 5 años. Se evaluó a 96 niños de una institución educativa de nivel inicial del distrito de Paucarpata, los cuales fueron evaluados a través de la observación clínica y la entrevista con los padres, confeccionándose para tal fin dos instrumentos, una Cédula de Entrevista, donde se evaluó aspectos relacionados a la lactancia materna exclusiva aplicada a los padres, y una Ficha de Observación Clínica, donde se estableció el desarrollo del arco dentario superior. El tipo de investigación es no experimental y el diseño aplicado correspondió a un trabajo de campo, prospectivo, relacional, transversal y prospectivo. Los resultados demostraron que, respecto al periodo de lactancia en los niños, este fue prolongado (74.2...