Active Brazilian crack cocaine users: nutritional, anthropometric, and drug use profiles.

Objective: To evaluate the nutritional status of crack users and to analyze its correlation with drug use profiles.

Methods: Cross-sectional study with 108 crack users. Anthropometric data were assessed through body mass index (BMI) and bioimpedance (BIA) measurements.

Effect of cooking on the concentration of bioactive compounds in broccoli (Brassica oleracea var. Avenger) and cauliflower (Brassica oleracea var. Alphina F1) grown in an organic system.

Brassica vegetables have been shown to have antioxidant capacities due to the presence of carotenoids, flavonoids and vitamins. This study evaluates the influence of different processing conditions (boiling, steaming, microwaving and sous vide) on the stability of flavonoids, carotenoids and vitamin A in broccoli and cauliflower inflorescences grown in an organic system. Results indicated that sous vide processing resulted in greater antioxidant capacity and that all processes contributed in some way to an increased content of antioxidant compounds in both cauliflower and broccoli.

[Association between mothers' quality of life and infants' nutritional status].

Objective: Determine associations between the quality of life of mothers and the nutritional status of children.

Methods: case-control study involving 152 mothers of children aged zero to five years, living in the coverage area of a basic health unit in the city of Porto Alegre. The calculation of sample size was estimated as 152 mothers - 76 mothers with children at nutritional risk/malnutrition (cases) and 76 mothers with eutrophic children (controls).

Monosialoganglioside increases catalase activity in cerebral cortex of rats.

Monosialoganglioside (GM1) is a neuroprotective agent that has been reported to scavenge free radicals generated during reperfusion and to protect receptors and enzymes from oxidative damage. However, only a few studies have attempted to investigate the effects of GM1 on enzymatic antioxidant defenses of the brain. In the present study, we evaluate the effects of the systemic administration of GM1 on the activity of superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GSH-Px), and on spontaneous chemiluminescence and total radical-trapping potential (TRAP) in cerebral cortex of rats ex vivo.

Glutaric acid induces oxidative stress in brain of young rats.

This study investigated the effects of glutaric acid, which predominantly accumulates in glutaric acidemia type I, on some in vitro parameters of oxidative stress in brain of young rats. We evaluated chemiluminescence, total radical-antioxidant potential (TRAP) and the activities of the antioxidant enzymes catalase, glutathione peroxidase and superoxide dismutase in brain tissue homogenates in the presence of glutaric acid at concentrations ranging from 0.05 to 2.