Harvesting rainwater for food security: farmers' perceptions of the Boardwalk Cisterns Program in Alagoas, Brazil.

Introduction: Boardwalk Cisterns is a government program that aims to attend a population with precarious access to water in Brazil. Developed as part of the Zero Hunger strategy, it intends to increase food security and contribute to the realization of the human right to food. The objective of this study was to assess farmers' perceptions of the Boardwalk Cisterns program and its impact on the food security situation of beneficiary households.

Food and nutritional security of semi-arid farm families benefiting from rainwater collection equipment in Brazil.

The objective of this study was to identify and describe the experience of family farmers and their respective families after using the Boardwalk Cistern rainwater collection system and consequent impacts on nutrition profile and food security. This is a qualitative-quantitative study conducted in two municipalities in the semi-arid region of the state of Alagoas, northeastern Brazil. A structured questionnaire was applied to collect information on demographic and socioeconomic status and household access to food, based on the Brazilian Food Insecurity Scale of 29 family farmers' households.

The effects of home-use and in-office bleaching treatments on calcium and phosphorus concentrations in tooth enamel: an in vivo study.

Background: Because the effects of dental bleaching on enamel needs to be clarified in vivo, the authors conducted a study to determine calcium and phosphorus concentrations in enamel after the application of different bleaching treatments.

Methods: The authors applied four agents (10 percent and 20 percent carbamide peroxide [both recommended for home use], 38 percent and 35 percent hydrogen peroxide [both applied in the dental office]) to the enamel of 80 participants, who were divided into four groups of 20. The authors collected enamel microbiopsy specimens from incisors before (baseline), during (seven, 14 and 21 days) and after (seven and 14 days) the bleaching treatments.

Transmembrane helix 1 contributes to substrate translocation and protein stability of bile acid transporter SLC10A2.

The human apical sodium-dependent bile acid transporter (hASBT, SLC10A2) plays a critical role in the enterohepatic circulation of bile acids, as well as in cholesterol homeostasis. ASBT reclaims bile acids from the distal ileum via active sodium co-transport, in a multistep process, orchestrated by key residues in exofacial loop regions, as well as in membrane-spanning helices. Here, we unravel the functional contribution of highly conserved transmembrane helix 1 (TM1) on the hASBT transport cycle.

[Differences in prenatal care between health services under the Family Health Strategy and traditional primary care clinics in Rio Grande, Rio Grande do Sul State, Brazil].

This study aimed to evaluate differences in prenatal care between services under the Family Health Strategy (FHS) and traditional public primary care clinics in Rio Grande, Rio Grande do Sul State, Brazil. A cross-sectional study was performed with all women who gave birth from January 1st to December 31st, 2007, and who received prenatal care in the municipal health system. The procedures recommended by the Ministry of Health were compared according to model of care.

Design of a modern liposome and bee venom formulation for the traditional VIT-venom immunotherapy.

Traditional venom immunotherapy uses injections of whole bee venom in buffer or adsorbed in Al (OH)(3) in an expensive, time-consuming way. New strategies to improve the safety and efficacy of this treatment with a reduction of injections would, therefore, be of general interest. It would improve patient compliance and provide socio-economic benefits.

Conserved aspartic acid residues lining the extracellular loop 1 of sodium-coupled bile acid transporter ASBT Interact with Na+ and 7alpha-OH moieties on the ligand cholestane skeleton.

Functional contributions of residues Val-99-Ser-126 lining extracellular loop (EL) 1 of the apical sodium-dependent bile acid transporter were determined via cysteine-scanning mutagenesis, thiol modification, and in silico interpretation. Despite membrane expression for all but three constructs (S112C, Y117C, S126C), most EL1 mutants (64%) were inactivated by cysteine mutation, suggesting a functional role during sodium/bile acid co-transport. A negative charge at conserved residues Asp-120 and Asp-122 is required for transport function, whereas neutralization of charge at Asp-124 yields a functionally active transporter.

Blind nasotracheal intubation in awaken patient scheduled for hemimandibulectomy. Case report.

Background And Objectives: Several resources can be used for the approach of the airways. Maintaining a patient awake when control of ventilation/oxygenation is uncertain is an option when intubation is doubtful. Blind nasotracheal intubation (NTI) is an alternative to fiberoptic endoscopy.

Dynamin 2 regulates riboflavin endocytosis in human placental trophoblasts.

Riboflavin is thoroughly established to be indispensable in a multitude of cellular oxidation-reduction reactions through its conversion to coenzyme forms flavin mononucleotide and flavin adenine dinucleotide. Despite its physiological importance, little is known about specific mechanisms or proteins involved in regulating its cellular entry in humans. Studies involving biochemical modulators and immunological inhibition assays have indirectly revealed that riboflavin internalization and trafficking occurs at least in part through a clathrin-dependent receptor-mediated endocytic process.

Effect of fluoride and gonadal steroid deficiency on enamel and dentin mineralization of female rats.

The aim of this study was to verify the influence of estrogen deficiency on enamel and dentin microhardness of female rats' incisors, as well as the influence of chronic administration of fluoride on that response. Sham or OVX rats drank distilled water or distilled water with 10 ppm fluoride as NaF, for 90 days. The upper incisors were removed and the specimens submitted to microhardness analysis of enamel and dentin.