Nadja Lima Pinheiro

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Trypanosoma cruzi, the etiologic agent of Chagas disease, presents considerable heterogeneity between isolated populations within the wild and domestic cycles. By using multiplex polymerase chain reaction based on the mini-exon gene, characterization was performed on seven samples isolated from specimens of Triatoma vitticeps that had been collected from(More)
OBJECTIVE To assess the diversity of oviposition containers and buildings where females of Aedes albopictus and Aedes aegypti can be found. METHODS A study was carried out in the city of Rio de Janeiro, Southern Brazil, between 2002 and 2003. Larvae in different types of buildings were investigated, and immature forms found were then sent to the(More)
The main purpose of this study was to evaluate the regional distribution pattern and relative frequency of some endocrine cells in the three portions of the gastrointestinal tract (GIT)--the proventriculus, gizzard and duodenum- of the rufous-collared sparrow (Zonotrichia capensis subtorquata), by immunohistochemical methods using six types of polyclonal(More)
A study about the genesis of the inner lining which covers the mucous membrane of the chicken gizzard was made and histochemical test were employed to detect the presence of carbohydrate in the epithelial components of the mucous membrane. The histochemical treatment of the apical border of gizzard epithelium from the 5th, 7th, 9th, 12th, and 15th d of(More)
In the present study, we investigated types of pancreatic endocrine cells and its respective peptides in the Brazilian sparrow species using immunocytochemistry. The use of polyclonal specific antisera for somatostatin, glucagon, avian pancreatic polypeptide (APP), YY polypeptide (PYY) and insulin, revealed a diversified distribution in the pancreas. All(More)
AIM To describe the histology of the digestive tract and to investigate the occurrence of endocrine cells in Oligosarcus hepsetus (O. hepsetus). METHODS The digestive tract (DT) of O. hepsetus was divided into esophagus, two stomach regions (glandular and non-glandular) and two intestinal regions (anterior and posterior). These specimens were processed by(More)
The intestinal of the 3-toed sloth, Bradypus tridactylus, was studied macroscopically, with light microscope and with histochemical methods for mucosubstances. Macroscopically, the inner surface of the duodenum shows longitudinal and circular folds. There is no caecum, nor appendix. The large intestine consists of a short colon and a large rectal pouch,(More)
Histological and ultrastrucutural alterations in the midgut of Aedes albopictus larvae infected with Bacillus thuringiensis var. israelensis (Bti) were observed by light and transmission electron microscopy (TEM). Two formulations of Bti were used: granulated and powder, with 0.2% active ingredient in 90 larvae of Ae. albopictus distributed in three(More)
The interceptive effect of the powder of Solanum lycocarpum (St. Hil) (Solanaceae) fruit, used as a hypoglycemic agent by diabetic patients in Minas Gerais state (Brazil), was evaluated to observe possible effects upon zygote and pre-embryo transport in rats, since it contains solamargine and solasonine from which a 3beta-acetoxipregna-5,16-dien-20-one is(More)
Enely MS Firmiano1*, Nathália N Cardoso1, Marcos AJ Santos2, Bernadete M Sousa3, Aparecida A Nascimento2 and Nadja L Pinheiro2 1Programa de Pós-graduação em Biologia Animal, Instituto de Biologia, Universidade Federal Rural do Rio de Janeiro-UFRRJ, Seropédica, RJ, CEP 23890-000, Brasil 2Laboratório de Histologia e Embriologia Animal, Universidade Federal(More)