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Fanny Concha Valdez, Clotilde Marín, Javier Flores Abuxapqui, Javier Escobedo Ortegón, Rocío Cañas, Manuel Sánchez Moreno
BACKGROUND: Chagas disease caused by Trypanosoma cruzi is endemic in Latin America. Human infection is mainly spread by Triatominae insects. Other forms of transmission are congenital, blood transfusion and organ transplantation. METHODS: Anti-T. cruzi antibodies were determined by enzyme-linked immunosorbent assay (ELISA) and Western blot (WB) in 155 serum samples from mothers and their babies. Indirect immunofluorescence (IFA) and a commercial test were used to validate efficacy of a specific ELISA-iron-excreted superoxide dismutase assay...
July 2016: Pediatric Infectious Disease Journal
F Hernández
Lacteous fat globules with their membranes from human milk and calostrum were studied by scanning and transmission electron microscopy. The first appear as spheroidal structures with some irregularities on the surface. Under the transmission electron microscope these irregularities are composed of islets from a material morphologically similar to cytoplasm, and with structures that resemble a fragment of rugose endoplasmic reticulum. The membranes in specimens fixed immediately after secretion are tri-layered, similar in appearance to those of a single membrane, but in samples fixed between two and four hours after secretion the details are unclear...
November 1983: Revista de Biología Tropical
A M Salinas Martínez, C Martínez Sánchez, J Pérez Segura
The objective of this investigation was to identify women's perception on normal and abnormal symptoms of pregnancy, puerperium and breastfeeding; its purpose was to assess the varying educational needs in the geographical area where a reproductive health education program will be implemented. 405 fertile females living in non-residential areas were interviewed in their homes. A predominantly pre-coded questionnaire was used; items related to reproductive health, preventable and susceptible to education were included...
May 1991: Salud Pública de México
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