vitamin a deficiency/obesity

New possible causes and unexplored aspects of the electroretinogram were evaluated in a case of vitamin A deficiency secondary to surgical therapy for morbid obesity. The Naka-Rushton equation, applied to the scotopic b-wave, demonstrated the quantal catch reduction caused by the loss of rhodopsin

Side effects are common in individuals who have undergone small-bowel bypass surgery for morbid obesity. Most of these side effects subside after a few months. More serious complications may require reestablishment of the bypassed loop. Rarely have vitamin deficiencies been observed. Development of

BACKGROUND Biliopancreatic diversion (BPD) has been advocated for the treatment of morbid obesity. This procedure has the theoretical advantage that patients retain normal eating capacity and lose weight irrespective of their eating habits. However, vitamin deficiencies may develop because BPD

Obesity has been associated with low-grade systemic inflammation and with micronutrient deficiencies. Obese individuals have been found to have lower vitamin A levels and lower vitamin A intake compared with normal-weight individuals. Vitamin A plays a major role in the immune function, including

Obesity negatively affects multiple metabolic pathways, but little is known about the impact of obesity on vitamin A (VA)[retinol (ROL)], a nutrient that regulates expression of genes in numerous pathways essential for human development and health. We demonstrate that obese mice, generated from a

BACKGROUND Biliopancreatic diversion (BPD) is an effective operation for morbid obesity. Fat-soluble vitamin deficiencies are known complications of this procedure, with incidence rates reported as high as 6%. METHODS A-36-year old morbidly obese female with BMI 60.6 kg/m(2) underwent laparoscopic

METHODS We describe ocular findings due to a vitamin A deficiency in a 50-year-old man. The patient had undergone intestinal bypass surgery two years before. After therapy with oral vitamin A the symptoms improved. CONCLUSIONS The incidence of morbid obesity is increasing throughout much of the

BACKGROUND This study aims to investigate the nutritional status of vitamin A (VA) using biochemical and functional indicators in subjects with class III obesity, before and after RYGB, supplemented with three protocols. METHODS The sample comprised 90 patients, with BMI ≥40 kg/m(2), divided into

OBJECTIVE To examine the prevalence of stunting and overweight in children and identify demographic, socio-economic and maternal characteristics, as well as biochemical indicators, associated with these outcomes. METHODS A population-based, cross-sectional study was performed. Data from structured

Significant vitamin A, E, or 25-hydroxy D deficiency occurred in 76% of 40 patients studied up to 6 years after jejunoileal bypass surgery for morbid obesity. Vitamin A was significantly lower in those who had lost 30% of their initial weight than in those who had lost less weight; however, there

BACKGROUND Epidemiological findings have shown the rise of the prevalence of obesity in several segments of the world population, and more recent evidences point to a possible association with vitamin A deficiency (VAD). The aim of this study was to investigate vitamin A nutritional status in

BACKGROUND Studies showed a rise in obesity prevalence in world population and evidences point to a possible association with vitamin A deficiency (VAD). The objective of this study is to assess vitamin A nutritional status through functional [night blindness diagnosis-xerophthalmia (XN)] and

OBJECTIVE A study was conducted to verify the association between serum concentrations of retinol and carotenoids with overweight in children and adolescents. METHODS In total 471 children (7-9.9 y of age) and adolescents (10-17 y of age), living in a poor region of the city of Rio de Janeiro,