Juceli S. Oliveira

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The duodenum or descending colon of male Wistar rats (average weight 60 g) was treated by a serosal application of a 0.2% solution of benzalkonium chloride (BAC) for 30 min. Control animals were treated with 0.9% (physiological) saline. The rats were allocated to four groups: Group DC (N = 8) in which the duodenum was treated with physiological saline;(More)
Scorpion stings in Brazil are important not only because of their incidence but also for their potential ability to induce severe, and often fatal, clinical situations, especially among children. In this report we present the clinical and laboratory data of 4 patients victims of scorpion stings by T. serrulatus, who developed heart failure and pulmonary(More)
Resting electrocardiograms were recorded in 18 male adult rats injected subcutaneously with two doses of isoproterenol (200 mg.kg-1 body weight) 10 days before the animals were submitted to the ajmaline test (1 mg.kg-1 body weight iv). After the ajmaline test all rats were killed and the hearts examined histologically. Electrocardiographic changes were(More)
Fifty-eight chronically T. cruzi-infected rats and 26 control rats were submitted to the ajmaline test (1 mg/kg, i.v. during ECG monitoring) after obtaining the resting ECG. Abnormal ECG tracings were detected in the resting ECG of 26 (44%) infected rats. After ajmaline injection, a decrease in heart rate was observed in control but not in infected rats. P(More)
This prospective investigation was conducted in an attempt to identify noninvasive predictors of mortality for patients with Chagas' heart disease through a multivariate stepwise logistic regression study. Fifty-six patients with a positive complement fixation test for Chagas' disease were followed up at the Cardiomyopathy Clinic of our institution from(More)
1. The following changes may be observed in the resting ECG of Wistar rats having different forms of heart disease: pathological Q wave, QRS deviations, lengthening of both P wave and QRS complex, increased PR interval and J point alterations. 2. The ajmaline test, when applied to rats with myocardial disease but with normal resting ECG, presented the(More)
The jejunum of rats was treated by serosal application of a 0.2% solution of benzalkonium chloride (BAC) for 30 min. Control animals were treated with saline (0.9% NaC1). The animals were allocated to eight groups of 10 rats each and sacrificed 15, 30, 45, 60 days after BAC treatment. Segments were removed from the jejunum for neuronal counting, measurement(More)