Role of glycogen synthase kinase-3 beta in the inflammatory response caused by bacterial pathogens.

Glycogen synthase kinase 3β (GSK3β) plays a fundamental role during the inflammatory response induced by bacteria. Depending on the pathogen and its virulence factors, the type of cell and probably the context in which the interaction between host cells and bacteria takes place, GSK3β may promote or inhibit inflammation. The goal of this review is to discuss recent findings on the role of the inhibition or activation of GSK3β and its modulation of the inflammatory signaling in monocytes/macrophages and epithelial cells at the transcriptional level, mainly through the regulation of nuclear factor-kappaB (NF-κB) activity.

[Reference values and prevalence of lipidic profile alterations in adolescents].

Introduction: Altered lipid metabolism along with other cardiovascular risk factors promotes atherosclerosis at early age, leading to cardiovascular disease development. We aimed to estimate the prevalence of abnormal lipid profle in school adolescents from the city of Posadas, Misiones, Argentina, and describe the distribution of values in an apparently healthy subgroup.

Population And Methods: Descriptive cross-sectional study in a sample of students from 12 to 18 years of age.

[Feeding ecology of the Guira Cuckoo (Guira guira) in the northeastern Buenos Aires Province].

We studied the diet and feeding ecology of the Guira Cuckoo (Guira guira), a bird that has a wide distribution in Argentina. We analyzed 62 stomachs, obtained between 1991 and 1997 (26 in spring, 13 in summer, 10 in autumn and 13 in winter), in the localities La Balandra and Punta Blanca, Magdalena district, Buenos Aires province. In order to establish the contribution of each prey item, we applied the relative importance index.