Las comunidades profesionales de aprendizaje y su incidencia en el desempeño docente en la Institución Educativa Emblemática N° 1070 Melitón Carvajal, de la UGEL 03 - Lima

El estudio realizado, tiene como título: “Las comunidades profesionales de aprendizaje y su incidencia en el desempeño docente en la Institución Educativa Emblemática N° 1070 Melitón Carvajal de Lince, el problema general planteado fue, ¿Cuál es la incidencia de las comunidades profesionales de aprendizaje en el desempeño docente en la I.E.E. N° 1070 Melitón Carvajal?, y tuvo como objetivo: determinar el nivel de incidencia de las comunidades profesionales de aprendizaje en el desempeño docente en la I.E.E. N° 1070 Melitón Carvajal. La investigación obedece a un diseño no experimental de corte transeccional o transversal y correlacional/causal; asimismo, el método utilizado es hipotético deductivo, con una población compuesta por 60 docentes que constituye la muestra censal, a quienes se les aplicó dos cuestionarios para medir el nivel de desarrollo de las comunidades profesionales de aprendizaje y el nivel de desempeño docente. Luego de la recolección de los datos, el procesamiento de la información y el análisis de los datos descriptivos e inferenciales, mediante el Pseudo coeficiente de determinación de las variables se llegó a la siguiente conclusión: Existe una relación directa y significativa entre las comunidades profesionales de aprendizaje y el desempeño docente en la I.E.E. N° 1070 Melitón Carvajal del distrito de Lince, 2018, habiéndose obtenido un R-cuadrado de Nagelkerke igual a 0,762 y un p.valor igual a 0,000

Bioassay-Guided Evaluation of Antinociceptive Effect of N-Salicyloyltryptamine: A Behavioral and Electrophysiological Approach

We investigated the antinociceptive and nerve excitability effects of the N-salicyloyltryptamine (NST) NST-treated mice exhibited a significant decrease in the number of writhes when 100 and 200 mg/kg (i.p.) were administered (i.p.). This effect was not antagonized by naloxone (1.5 mg/kg, i.p.). NST inhibited the licking response of the injected paw when 100 and 200 mg/kg were administered (i.p.) to mice in the first and second phases of the formalin test. Because the antinociceptive effects could be associated with neuronal excitability inhibition, we performed the single sucrose gap technique and showed that NST (3.57 mM) significantly reduced (29.2%) amplitude of the compound action potential (CAP) suggesting a sodium channel effect induced by NST. Our results demonstrated an antinociceptive activity of the NST that could be, at least in part, associated to the reduction of the action potential amplitude. NST might represent an important tool for pain management

Evaluation of the anti-Inflammatory and antinociceptive effects of the essential oil from leaves of Xylopia laevigata in experimental models

Xylopia laevigata (Annonaceae) is a medicinal plant used in folk medicine to treat pain and inflammation. Thus, we investigated the possible antioxidant, antinociceptive, and anti-inflammatory effects of X. laevigata leaf essential oil (EOX) in animal models. Our EOX sample showed the presence of y-muurolene (17.78%), o-cadinene (12.23%), bicyclogermacrene (7.77%), and a-copaene (7.17%) as main compounds. EOX presented a strong antioxidant potential according to the DPPH, TBARS, and nitrite production tests. Additionally, pretreatment with EOX, in mice, also significantly produced (p < 0.05 or p < 0.001) antinociceptive effect by reduction of nociceptive behavior (in formalin and writhing tests). The EOX showed c-Fos label in the olfactory bulb, piriform cortex, and periaqueductal gray. Acute administration of EOX exhibited a significant (p < 0.01 or p < 0.001) anti-inflammatory profile in the carrageenan-induced peritonitis and by the carrageenan-induced hindpaw edema tests in mice. Our results provide evidence for the use of X. laevigata by traditional medicine practitioners in the management of pain and inflammatory disorders

Anti-inflammatory and redox-protective activities of citronellal

The anti-inflammatory and redox protective effects of the citronellal (CT) were evaluated using in vivo and in vitro tests. Intraperitoneal (i.p.) administration of CT (50, 100, and 200 mg/kg) inhibited (p < 0.05) the carrageenan-induced leukocyte migration to the peritoneal cavity. Additionally, the carrageenan- and arachidonic acid-induced rat hind paw edema was significantly inhibited (p < 0.05) by i.p. administration of 100 and 200 mg/kg of the compound. When the redox activity was evaluated, CT (200 mg/kg) significantly reduced hepatic lipoperoxidation (p < 0.001), as well as oxidation of plasmatic (p < 0.05) and hepatic (p < 0.01) proteins. The results of the present study support the hypothesis that CT possesses anti-inflammatory and redox protective activities. It is suggested that its effects are associated with the inhibition of the enzymes in the arachidonic acid pathway, which prevent cell migration by inhibiting leukotriene production, edema formation and the increase of reactive oxygen species in tissues. Therefore, CT is of potential benefit to manage inflammatory disorders and correlated damages caused by oxidant agents