R. A. Ramalho

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Vitamin A deficiency is considered one of the most important of the easily preventable public health problems in a number of countries, including Brazil. The objective of this study was to review the scientific literature in the MEDLINE and LILACS databases that was published between 1970 and 2000 concerning vitamin A deficiency, and to assess the(More)
OBJECTIVE Gestational night blindness (XN) is associated with increased risk of reproductive morbidity and mortality. This study investigated the prevalence of gestational XN among postpartum women treated in a public maternity hospital in the city of Rio de Janeiro, Brazil and evaluated its association with maternal and neonatal (cord blood) serum retinol(More)
Self-expanding metallic stents (SEMS) are the treatment of choice for incurable obstructive malignant esophageal strictures. Although the placement of SEMS is usually performed with fluoroscopic control (FC), recently several authors have shown the feasibility of placing SEMS under endoscopic control alone (EC). However, studies comparing the two techniques(More)
BACKGROUND Obesity among pre-school children and its repercussions on adult life are growing problems, but there has been little research focusing on its relationship with the deficiency of serum retinol and carotenoids in our region. MATERIAL/METHODS In a case-control study, a group of 46 preschool children, were matched by sex and age (23 obese and 23(More)
OBJECTIVE To evaluate the intake of retinol and carotenoids, and their serum levels, as well as the impact of vitamin A supplementation on the anthropometry and body composition of children and adolescents with non-hormonal-related statural deficit. METHOD Double-blind, randomized trial of 46 pre-pubertal patients, between 4 and 14 years of age, with(More)
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, Brazil, were assessed. Serum concentrations of retinol and(More)
OBJECTIVES To determine the vitamin A intake and the blood levels of carotenoids and retinol in stunted children and adolescents without hormonal disease, assisted in the Clinic of Pediatric Endocrinology of the Center for Nutrition and Child Development--Department of Health, State of São Paulo, Brazil. METHODS We evaluated, in a prospective and(More)
Pancreatic adenocarcinoma has an extremely poor prognosis. With the best available treatments, the median overall survival duration is still less than 1 year. Most patients develop anorexia and major muscle mass loss that interfere with chemotherapy tolerance and survival. In this paper, we present a case in which these problems were a major concern. A(More)
Vitamin A status (umbilical cord retinol levels) of 253 newborns in two public hospitals of Rio de Janeiro showed a high prevalence (55. 7%) of deficiency (retinol levels below 1.05 micromol/L). This rate of vitamin A deficiency (VAD) was independent of other nutritional and anthropometric parameters, such as low birth weight or small for gestational age.(More)
The effect of the consumption of ethanol (5%) on retinol concentration in milk was studied in the rat on day 12 after delivery, together with the evolution of dam body weight and pup growth rate. Female Wistar rats receiving alcohol (5%) in drinking water during lactation (N = 7) were compared to normal controls fed ad libitum (N = 6). The mean maternal(More)