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OBJECTIVE: The aim of the present study was to determine the impedance of Wistar rats treated with high-fat and high-sucrose diets and correlate their biochemical and anthropometric parameters with chemical analysis of the carcass. METHODS: Twenty-four male Wistar rats were fed a standard (AIN-93), high-fat (50% fat) or high-sucrose (59% of sucrose) diet for 4 weeks. Abdominal and thoracic circumference and body length were measured. Bioelectrical impedance analysis was used to determine resistance and reactance. Final body composition was determined by chemical analysis. RESULTS: Higher fat intake led to a high percentage of liver fat and cholesterol and low total body water in the High-Fat group, but these changes in the biochemical profile were not reflected by the anthropometric measurements or bioelectrical impedance analysis variables. Anthropometric and bioelectrical impedance analysis changes were not observed in the High-Sucrose group. However, a positive association was found between body fat and three anthropometric variables: body mass index, Lee index and abdominal circumference. CONCLUSION: Bioelectrical impedance analysis did not prove to be sensitive for detecting changes in body composition, but body mass index, Lee index and abdominal circumference can be used for estimating the body composition of rats.

Association of dietary acid load with serum bicarbonate in chronic kidney disease (CKD) patients.

The Food and Nutrition Units (UANs) have had a considerable growth during the last times, and for receiving great demand from the population, they need rigorous controls in their production processes, in order to guarantee the effective quality of the products. One of the ways to assist the Good Practices is with the use of Work Instructions (WTIs), defined as the step by step of the safety routine. The objective of the present work was to find out which STI method results in greater knowledge of the employees' Good Handling Practices. The study was carried out in a bakery located in a city in the interior of the state of São Paulo. The research occurred in three stages: evaluation (A1), implementation of ITs elaborated according to the deficiencies found in A1 and in the formats written with emphasis on certain words (ESD), written with image (ESI) and only written (ES), and evaluation (A2). The analysis was performed using Microsoft Word® and Microsoft Excel®. The results pointed out that all ITs improve knowledge in A2 and that writing with image (ESI) shows better results than the other two ITs. The results show effectiveness in the awareness of sanitary legislations in the implementation of ITS enabling employees to work in such environment, thus providing more safety to the customer.