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This experiment was carried out to study the effect of dietary energy on the colonic temperature and hepatic Hsp70 content in broiler chicken at room temperature and after heat stress conditions. Broiler chickens were reared up to 51 days of life, and fed diets containing high (HE -13,186 kJ ME/kg) or low (LE -12,139 kJ ME/kg) energy. At 21 and 51 days of age, the colonic temperature was measured at room temperature and liver samples were obtained for Hsp70 quantification by Western blotting analysis. It was also investigated at these ages the time course response of colonic temperature and hepatic Hsp70 level during heat stress (35º C/5 h). The data showed that at early age, at room temperature, colonic temperature or hepatic Hsp70 levels were not affected by dietary energy, but at 51 days of life low energy fed broilers had lower Hsp70 concentration in the liver. During heat stress, the increase in both colonic temperature and hepatic Hsp70 concentration were significantly less in high energy fed birds. The findings of this study suggest that hepatic Hsp70 synthesis is affected by dietary energy, and that broiler chicken fed high-energy diet can change the thermoresistance during acute heat stress.

In order to contribute with the most diverse research and development laboratories in its experiments, this paper presents the development methods for the construction of electric furnaces able to operate at temperatures up to 1200oC, with high thermal inertia and low cost. Research and development laboratories in Latin America face many difficulties in maintaining their experiments, especially those related to the synthesis of materials. However, many labs do not have the philosophical tradition of building their own research equipment, depending on whether importing or buying expensive equipment. In this article, we demonstrate the possibility of developing furnaces with good thermal homogeneity using low cost materials found throughout Latin America. Finally, we describe the construction methods and the materials used in the construction of two different furnaces operating at temperatures up to 400oC and 1200oC, presenting very good thermal inertia and homogeneity. With an operational temperature up to 1200 oC, both furnaces have thermal inertia and homogeneity.

Objectives: In the treatment of acute myocardial infarction (MI), the time delay to achieve reperfusion of the infarction-related artery has been linked to survival rates. Primary or direct angioplasty has been found to be an excellent means of achieving reperfusion in acute ST-elevation MI compared to thrombolytic therapy in randomized trials. However, no mortality benefit of primary angioplasty over thrombolysis was observed in several registries, in which delays in performing primary angioplasty were longer. Our objectives were to evaluate the door-to-balloon time (DBT) in our institution and investigate its relationship with clinical and prognostic variables.

To analise the epidemiological data (Sex, age and presence of HLA B27).Methods We included 86 patients with AS, 61 men (70.9%) and 25 women (29.1%), mean age was 48.6 ± 11.8 years (range 22 -71). The disease onset had occurred at 27.4 ± 9.2 years (range 6-53). The diagnosis of SS was made according to European Criteria and all patients with SS had keratoconjuntivitis sicca. Results Uveitis was present in 30 patients (34.9%), SS in 8 patients (9.3%) and HLA-B27 + in 63 patients (73.3%).In the group of female patients (25) we found: 22 (88%) HLA-B27 +, 10 (40%) with uveitis, 8 (32%) with SicS and 1 (4%) with SS. In the group of male patients (61) we found: 41 (67.2%) HLA-B27 +, 20 (32.8%) with uveitis, 12 (19.7%) with SicS and 7 (11.5%) with SS.In the group of HLA-B27 + patients (62 we found: 26 (41.9%) with uveitis and 6 (9.7%) with SS. In the group of HLA-B27 negative patients (24) we found: 4 (16.7%) with uveitis and 2 (8.3%) with SS. Conclusion. The prevalence of HLA-B27 was lower than in literature.. HLA-B27 was more prevalente in female.. The frequence of uveitis was higher in the HLA-B27 positive patients. . We find a high prevalence of SS in male.