Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto

About: Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto is a based out in . It is known for research contribution in the topics: Population & Genus. The organization has 2143 authors who have published 3674 publications receiving 71071 citations. The organization is also known as: FFCLRP & FFCLRP-USP.

Qualidade de vida de pacientes com diabetes mellitus antes e após participação em programa educativo

Abstract: This quasi-experimental study aimed to evaluate the health-related quality of life in individuals with diabetes mellitus before and after their participation in a five-month educational program in a primary care service in Brazil in 2008. The sample consisted of 51 individuals, 56.9% female and 43.1% male, who had a mean age of 57.65 ± 11.44 years. Data were collected using the Portuguese version of the SF-36 questionnaire. The instrument had adequate reliability estimates for the study sample. Cronbach's alpha for the two components of the instrument, physical and mental, were 0.83 and 0.89, respectively. The findings suggested improvements in all the domain components; however, only the general health domain, before (63.96 ± 19.03) and after (70.59 ± 17.82) the educational program, presented statistically significant mean differences, t(50) = 2.16, p<0.05. Participation in the educational program also contributed to improvements in the perceptions of the individuals regarding their general health status.

K+ and NH4(+) modulate gill (Na+, K+)-ATPase activity in the blue crab, Callinectes ornatus: fine tuning of ammonia excretion.

Abstract: To better comprehend the mechanisms of ionic regulation, we investigate the modulation by Na + , K + , NH 4 + and ATP of the (Na + , K + )-ATPase in a microsomal fraction from Callinectes ornatus gills. ATP hydrolysis obeyed Michaelis–Menten kinetics with K M = 0.61 ± 0.03 mmol L − 1 and maximal rate of V = 116.3 ± 5.4 U mg − 1 . Stimulation by Na + ( V = 110.6 ± 6.1 U mg − 1 ; K 0.5 = 6.3 ± 0.2 mmol L − 1 ), Mg 2+ ( V = 111.0 ± 4.7 U mg − 1 ; K 0.5 = 0.53 ± 0.03 mmol L − 1 ), NH 4 + ( V = 173.3 ± 6.9 U mg − 1 ; K 0.5 = 5.4 ± 0.2 mmol L − 1 ) and K + ( V = 116.0 ± 4.9 U mg − 1 ; K 0.5 = 1.5 ± 0.1 mmol L − 1 ) followed a single saturation curve, although revealing site–site interactions. In the absence of NH 4 + , ouabain ( K I = 74.5 ± 1.2 μmol L − 1 ) and orthovanadate inhibited ATPase activity by up to 87%; the inhibition patterns suggest the presence of F 0 F 1 and K + -ATPases but not Na + -, V- or Ca 2+ -ATPase as contaminants. (Na + , K + )-ATPase activity was synergistically modulated by K + and NH 4 + . At 10 mmol L − 1 K + , increasing NH 4 + concentrations stimulated maximum activity to V = 185.9 ± 7.4 U mg − 1 . However, at saturating NH 4 + (50 mmol L − 1 ), increasing K + concentrations did not stimulate activity further. Our findings provide evidence that the C. ornatus gill (Na + , K + )-ATPase may be particularly well suited for extremely efficient active NH 4 + excretion. At elevated NH 4 + concentrations, the enzyme is fully active, regardless of hemolymph K + concentration, and K + cannot displace NH 4 + from its exclusive binding sites. Further, the binding of NH 4 + to its specific sites induces an increase in enzyme apparent affinity for K + , which may contribute to maintaining K + transport, assuring that exposure to elevated ammonia concentrations does not lead to a decrease in intracellular potassium levels. This is the first report of modulation by ammonium ions of C. ornatus gill (Na + , K + )-ATPase, and should further our understanding of NH 4 + excretion in benthic crabs.

ATLANTIC-CAMTRAPS: a dataset of medium and large terrestrial mammal communities in the Atlantic Forest of South America

Abstract: Our understanding of mammal ecology has always been hindered by the difficulties of observing species in closed tropical forests. Camera trapping has become a major advance for monitoring terrestrial mammals in biodiversity rich ecosystems. Here we compiled one of the largest datasets of inventories of terrestrial mammal communities for the Neotropical region based on camera trapping studies. The dataset comprises 170 surveys of medium to large terrestrial mammals using camera traps conducted in 144 areas by 74 studies, covering six vegetation types of tropical and subtropical Atlantic Forest of South America (Brazil and Argentina), and present data on species composition and richness. The complete dataset comprises 53,438 independent records of 83 species of mammals, includes 10 species of marsupials, 15 rodents, 20 carnivores, 8 ungulates and 6 armadillos. Species richness averaged 13 species (± 6.07 SD) per site. Only six species occurred in more than 50% of the sites: the domestic dog Canis familiaris, crab-eating fox Cerdocyon thous, tayra Eira barbara, south American coati Nasua nasua, crab-eating raccoon Procyon cancrivorus and the nine-banded armadillo Dasypus novemcinctus. The information contained in this dataset can be used to understand macroecological patterns of biodiversity, community, and population structure, but also to evaluate the ecological consequences of fragmentation, defaunation, and trophic interactions. This article is protected by copyright. All rights reserved.