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V Amato Neto

Publications and source records attributed to V Amato Neto.

At least 199 records · Page 11Linked to original sources
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[Treatment of Schistosomiasis mansoni with a combination oxamniquine and praziquantel. II. Experimental observations during the patent phase].

The efficacy of an association of oxamniquine and praziquantel in the patent phase of experimental schistosomiasis was studied. The mice were infected and divided in four groups in accordance to the following schedules with the use of single oral doses: I--Oxaminiquine (50 mg/kg); II--praziquantel (75 mg/kg); III--association of oxamniquine (50 mg/kg) and praziquantel (75 mg/kg); and IV--no drug. Efficacy was assessed by the oogram technique, studying and classifying the evolution of the output of eggs in fragments of the small intestine, and also by recovery of the worms by portal vein perfusion. In the animals of groups I and II, the drugs had a partial effect while in the group III sinergism was evident.

Administration, Oral↗
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[Use of immunosuppressed mice in an attempt to improve the diagnosis of infection by Trypanosoma cruzi].

In order to demonstrate low level parasitemias of Trypanosoma cruzi, a procedure based on the pharmacologic development of immunosuppression and subsequente innoculation of a test blood specimen was evaluated in mice. Prednisone was effective for the procedure and my be considered for diagnosis and for clinical and laboratorial follow-up of patients with Chagas'disease, submitted to heart transplantation. However, prednisone effectiveness depended from the level of parasitemia.

Animals↗
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[Fraud in science].

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Scientific Misconduct↗
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[Evaluation of the usefulness of the Coprotest for parasitologic examination of feces].

"Coprotest" is a device used for parasitological examination of the stools that has been marketed in Brazil with no previous literature support. Therefore, we decided to evaluate the usefulness of the procedure using "Coprotest", comparing it with the routine methods by Hoffman et al., Faust et al., and Rugai et al. Taking into consideration only positive samples, we observed the following figures, according to each technique: Hofmann et al.--98 (47.34%); Faust et al.--119 (57.48%); Rugai et al., only for larva detection--21 (10.14%); "Coprotest"--115 (55.55%). We concluded that "Coprotest" in addition to its operational qualities, has the merits that allow its use together with other techniques for parasitosis diagnosis. Nevertheless it has not modified the previous situation, since more than one technique must still be used, as we have noted for detection of Strongyloides stercoralis larvae in this instance.

Evaluation Studies as Topic↗