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Dive into the research topics where Maria Teresa Rivera is active.

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Featured researches published by Maria Teresa Rivera.


Parasitology Research | 1992

Trypanosoma cruzi: Enhanced alpha-macroglobulin levels correlate with the resistance of BALB/cj mice to acute infection

Tania C. de Araújo-Jorge; Maria-José F. Lage; Maria Teresa Rivera; Yves Carlier; Fred Van Leuven

Trypanosoma cruzi proteinases are very likely involved in host-cell invasion. Physiological plasma-proteinase inhibitors from the macroglobulin (MG) family, among them alpha-2-macroglobulin (A2M), are found in tissues and in the plasma of mammals. By complexing to all classes of proteinases, MGs inhibit their action on high-molecular-weight substrates. In vitro studies have shown that A2M impairsT. cruzi proteases and, consequently, the parasites ability to invade host cells and enhances the phagocytic and microbicidal actions of resident macrophages againstT. cruzi. To test the hypothesis of a putative “protective” effect for MG, we quantified it in BALB/cj mice during the course of an experimentalT. cruzi infection, comparing a posteriori the levels in mice that died with those in animals that survived, which were considered as being susceptible and resistant to the infection, respectively. The results showed that surviving mice showed an increase in plasma concentrations of MG during the first few weeks after the infection, whereas the levels in mice that died during the acute phase did not differ significantly from those in non-infected mice. These findings and the previous in vitro data indicate a role for physiological proteinase inhibitors, particularly alpha-macroglobulins, in resistance toT. cruzi infection, whereby a balance between parasite proteases and host protease inhibitors may be crucial. MG may thus participate in the complex network of reactions involved in the early acute phase of the disease and contribute by confering to the host an ability to survive the infection.


American Journal of Tropical Medicine and Hygiene | 2002

Progressive Chagas' cardiomyopathy is associated with low selenium levels.

Maria Teresa Rivera; Andréa Pereira de Souza; Alejandro Hasslocher Moreno; Sérgio Salles Xavier; Juliana Assis Silva Gomes; Manoel Otávio da Costa Rocha; Rodrigo Correa-Oliveira; Jean Neve; Jean Vanderpas; Tania C. de Araújo-Jorge


Clinical Chemistry and Laboratory Medicine | 2003

Trace Elements, Innate Immune Response and Parasites

Maria Teresa Rivera; Andréa Pereira de Souza; Tania C. de Araújo-Jorge; Solange L. de Castro; Jean Vanderpas


Infection and Immunity | 1995

High tumor necrosis factor alpha (TNF-alpha) production in Trypanosoma cruzi-infected pregnant mice and increased TNF-alpha gene transcription in their offspring.

Maria Teresa Rivera; S Marques de Araujo; R Lucas; J Deman; Carine Truyens; M P Defresne; P de Baetselier; Yves Carlier


American Journal of Tropical Medicine and Hygiene | 1992

Chagas' Disease: Decreased Resistance to Trypanosoma Cruzi Acquired Infection in Offspring of Infected Mice

Yves Carlier; Maria Teresa Rivera; Carine Truyens; Marta Ontivero; Jocelyne Flament; Eric Van Marck; Viviane De Maertelaer


Infection and Immunity | 1993

An Fc gamma RII-, Fc gamma RIII-specific monoclonal antibody (2.4G2) decreases acute Trypanosoma cruzi infection in mice.

Tania C. de Araújo-Jorge; Maria Teresa Rivera; A el Bouhdidi; Marc Daëron; Yves Carlier


American Journal of Tropical Medicine and Hygiene | 1996

Maternal Trypanosoma cruzi-Specific Antibodies and Worsening of Acute Infection in Mouse Offspring

S Marques de Araujo; Maria Teresa Rivera; A el Bouhdidi; Viviane De Maertelaer; Yves Carlier


Revista Da Sociedade Brasileira De Medicina Tropical | 2005

Efectos de la infección aguda y crónica por Trypanosoma cruzi en la gestación de los ratones

Carine Truyens; Abdelkarim Mjihdi; Marie-Alexandra Lambot; Maria Teresa Rivera; Jean Christophe Noël; Yves Carlier


Revista Da Sociedade Brasileira De Medicina Tropical | 2005

Effects of acute and chronic Trypanosoma cruzi infection in pregnant mice

Carine Truyens; Mjihdi K; Marie-Alexandra Lambot; Maria Teresa Rivera; Jean Christophe Noël; Yves Carlier


Archive | 1993

Contribution à l'étude de la relation foeto-maternelle dans l'infection expérimentale à Trypanosoma Cruzi

Maria Teresa Rivera; Yves Carlier

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Yves Carlier

Université libre de Bruxelles

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Carine Truyens

Université libre de Bruxelles

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Jean Christophe Noël

Université libre de Bruxelles

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Jean Vanderpas

Free University of Brussels

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S Marques de Araujo

Université libre de Bruxelles

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Manoel Otávio da Costa Rocha

Universidade Federal de Minas Gerais

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