Liver hemodynamic patterns in nonalcoholic steatosis: Doppler ultrasonography and histological evaluation.

Background: The aim of this study was to evaluate hepatic Doppler ultrasound (US) indices for steatosis diagnosis and grading, having biopsy as reference.

Methods: Doppler and conventional US were performed in 49 healthy volunteers, without risk factors for nonalcoholic fatty liver disease (NAFLD), and in 49 patients with NAFLD and at least one risk factor: obesity, dyslipidemia and/or diabetes mellitus. Significant alcohol intake and hepatitis B or C were exclusion criteria.

Severe protein malnutrition in a morbidly obese patient after bariatric surgery.

The aim of this study was to describe the clinical course of a morbidly obese patient who underwent Roux-en-Y gastric bypass (RYGB) surgery and, in the late postoperative period, presented the expected loss of weight, but also presented severe protein malnutrition (PM). A patient with morbid obesity, who in March 2012, presented PM (serum albumin = 2.4 g/dL) 2 y after the completion of RYGB surgery (loss of 52.

Bivariate and multivariate analyses of the influence of blood variables of patients submitted to Roux-en-Y gastric bypass on the stability of erythrocyte membrane against the chaotropic action of ethanol.

The stability of the erythrocyte membrane, which is essential for the maintenance of cell functions, occurs in a critical region of fluidity, which depends largely on its composition and the composition and characteristics of the medium. As the composition of the erythrocyte membrane is influenced by several blood variables, the stability of the erythrocyte membrane must have relations with them. The present study aimed to evaluate, by bivariate and multivariate statistical analyses, the correlations and causal relationships between hematologic and biochemical variables and the stability of the erythrocyte membrane against the chaotropic action of ethanol.