Background: The importance of vascular occlusion in the pathogenesis of human haemoprotozoal disease is unresolved.
Methods: Giemsa-stained tissue sections from a human case of Babesia microti infection in a splenectomized patient with chronic lymphocytic leukaemia and colon cancer were examined to ascertain the distribution of parasitized erythrocytes within the vascular lumen.
Results: No evidence of sequestration was observed.
Conclusion: This first report on the vascular location of B. microti in human tissue suggests that severe multi-organ failure due to babesiosis is independent of sequestration of parasitized erythrocytes. A similar pathogenesis may also cause multi-organ failure in other intraerythrocytic protozoal infections, including falciparum malaria.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1552079 | PMC |
| http://dx.doi.org/10.1186/1475-2875-5-69 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Immune regulation of host energy metabolism and periodicity of malaria parasites.
Philos Trans R Soc Lond B Biol Sci
January 2025
Laboratory of Immunopathology - Instituto René Rachou, Fundação Oswaldo Cruz - Minas, Belo Horizonte 30190-002, Brazil.
The synchronization of parasites as they replicate within red blood cells of their vertebrate host remains largely unexplored. Understanding this synchronization could reveal how parasites optimize their lifecycle to maximize transmission, evade the immune response and maximize energy acquisition. Rhythmic replication fulfils some criteria of an endogenous oscillator with time of day cues potentially provided by temperature, oxygen levels, hormones and/or nutrient availability.
View Article and Find Full Text PDFA Systematic Targeted Genetic Screen Identifies Proteins Involved in Cytoadherence of the Malaria Parasite P. falciparum.
Mol Microbiol
January 2025
Department of Biochemistry and Molecular Biology, Justus-Liebig University Gießen, Gießen, Germany.
Immediately after invading their chosen host cell, the mature human erythrocyte, malaria parasites begin to export an array of proteins to this compartment, where they initiate processes that are prerequisite for parasite survival and propagation, including nutrient import and immune evasion. One consequence of these activities is the emergence of novel adhesive phenotypes that can lead directly to pathology in the human host. To identify parasite proteins involved in this process, we used modern genetic tools to target genes encoding 15 exported parasite proteins, selected by an in silico workflow.
View Article and Find Full Text PDFToxoplasmosis is a significant food-borne protozoal disease in humans and animals. The study aimed to find out Toxoplasma seropositivity in sheep, estimate epidemiological risk factors and assess haemato-biochemical parameter changes. Blood samples were collected from 276 indigenous sheep in five districts surrounding Sulaymaniyah Province in the northern region of Iraq.
View Article and Find Full Text PDFHaematobiochemical alterations and lesion characterization induced by haemonchosis in slaughtered sheep at Gondar ELFORA abattoir, Ethiopia.
BMC Vet Res
January 2025
Department of Veterinary Pathobiology, College of Veterinary Medicine and Animals Sciences, University of Gondar, P.O. Box: 196, Gondar, Ethiopia.
Haemonchosis is a major gastrointestinal parasitic infection in sheep caused by H. contortus. An abattoir-based cross-sectional study was conducted from January to September 2024 to assess the haematobiochemical alterations and lesion characterization induced by haemonchosis in slaughtered sheep at Gondar ELFORA abattoir.
View Article and Find Full Text PDFWhole-Cell Thermal Sensor for the Detection of -Infected Erythrocytes: Imprinted Polymers as Synthetic Receptors for the Detection of Malaria.
ACS Sens
January 2025
Sensor Engineering Department, Faculty of Science and Engineering, Maastricht University, P.O. Box 616, 6200 MDMaastricht, The Netherlands.
Malaria is a major public healthcare concern worldwide, representing a leading cause of death in specific regions. The gold standard for diagnosis is microscopic analysis, but this requires a laboratory setting, trained staff, and infrastructure and is therefore typically slow and dependent on the experience of the technician. This study introduces, for the first time, a biomimetic sensing platform for the direct detection of the disease.
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!