We recently evaluated the in vitro proliferative response and interferon (IFN)-gamma production of peripheral blood mononuclear cells from a group of 25 people who were treated for Chagas' disease during the acute phase of Trypanosoma cruzi infection and followed up for a period of 14-30 years. On the basis of the parasitological and serological tests, the individuals were classified as cured (C), dissociated, or not cured (NC). Members of group C (the group without cardiac alterations) presented significantly stronger proliferative response against the parasite antigens, with secretion of high levels of IFN-gamma in comparison with the NC group, raising a question about the role of this cytokine in the curing of human T. cruzi infection. Severe cardiac alterations were observed only in 1 of 25 patients, which suggests that treatment benefited the patients.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1086/315743 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Biological activities of lichen extracts and UHPLC-ESI-QTOF-MS analysis of their secondary metabolites.
Front Pharmacol
January 2025
Instituto de Farmacia, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile.
This research was designed to investigate the metabolite profiling, phenolics content, and the trypanocidal, nematicidal, antibacterial, antifungal, and free radical scavenging properties of Motyka. The air-dried material was extracted successively with dichloromethane and methanol (UlMeOH). Two phases were obtained from the extract with dichloromethane, one soluble in methanol (UlDCM-s) and the other insoluble (UlDCM-i).
View Article and Find Full Text PDFMolecular detection of trypanosomatids among cave-dwelling bats from Colombia.
Int J Parasitol
January 2025
Grupo de Enfermedades Infecciosas Facultad de Ciencias Pontificia Universidad Javeriana Bogotá Colombia. Electronic address:
Bats play crucial roles in various ecosystems including caves. Although the presence of trypanosomatid species in bats has been documented in Colombia, their diversity in cave-dwelling bats remains unclear. This study aimed to characterize the frequency and diversity of protists from the family Trypanosomatidae circulating in bats from the Macaregua cave ecosystem in Santander, Colombia.
View Article and Find Full Text PDFEnvironmental Challenges and Co-Infection Modulate Resistance and Tolerance Against Trypanosoma Cruzi and Trichinella Spiralis in Rats.
J Exp Zool A Ecol Integr Physiol
January 2025
Laboratorio de Ecología de Enfermedades, Instituto de Ciencias Veterinarias del Litoral (ICIVET LITORAL), Universidad Nacional del Litoral - CONICET, Santa Fe, Santa Fe, Argentina.
To overcome infection, hosts employ two defense strategies: resistance (which limits pathogen fitness), and tolerance (which reduces infection damage). These strategies may be influenced by environmental challenges such as food shortage, social conflict, and co-infections. Here, our objective was to assess defense strategies in rats infected with Trichinella spiralis and/or Trypanosoma cruzi under environmental challenges.
View Article and Find Full Text PDFSynanthropic Rodents as Bioindicator of Human Pathogens in a Tourist Area of Brazil.
Ecohealth
January 2025
Department of Agricultural and Environmental Sciences, State University of Santa Cruz, Direction of the University: Campus Soane Nazaré de Andrade, Rod. Jorge Amado, Km 16 - Salobrinho, Ilhéus, Bahia, 45662-900, Brazil.
The black rat Rattus rattus is an exotic and synanthropic rodent prominent in Brazil and with high adaptation to urban areas. The species have an omnivorous diet feed on human food resources, potentially becoming infected and spreading infectious agents that cause zoonoses such as leptospirosis, leishmaniosis, Chagas disease, and toxoplasmosis, which are significant public health concerns in the country. We analyzed the epidemiologic profile of R.
View Article and Find Full Text PDFUsefulness of polymerase chain reaction tests in Chagas disease studies.
Front Parasitol
February 2024
National Reference Center for Parasitology, Research Institute of the McGill University Center, Montreal, QC, Canada.
The Polymerase Chain Reaction (PCR) test is a highly sensitive, specific, and rapid diagnostic tool for Chagas disease. Chagas disease is caused by the protozoan flagellate and is endemic to the Americas. While conventional serological methods are still used in the diagnosis of Chagas disease, they are being gradually replaced by molecular methods like PCR.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!