Fifty-five sera from bilharziasis patients from West Indies and thirty-five control sera (from normal subjects and patients with hydatidosis and fascioliasis) were examined by ELISA for antibodies reacting with S. mansoni soluble egg antigen MSA1 . MSA1 antigen was prepared according to Pelley and coupled to isothiocyanate substituted plastic discs. Sensitivity and specificity of reaction were good. Moreover, in experimental infection in mice, sera of mice cured with praziquantel became negative. The sera were also examined by a whole egg antigen in counter immunoelectrophoresis. The results of the two different techniques correspond well although ELISA using purified antigen prove to be more specific and sensitive.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
A Review of Nanomaterials and Microwave Synthesized Metal Oxides Nanoparticles in Schistosomiasis Diagnosis.
J Fluoresc
January 2025
Department of Chemical Sciences, University of Johannesburg, Doornfontein, Johannesburg, South Africa.
Point of Care (POC) diagnosis provides an effective approach for controlling and managing Neglected Tropical Diseases (NTDs). Electrochemical biosensors are well-suited for molecular diagnostics due to their high sensitivity, cost-effectiveness, and ease of integration into POC devices. Schistosomiasis is a prominent NTD highly prevalent in Africa, Asia, and Latin America, with significant socioeconomic implications such as discrimination, reduced work capacity, or mortality, perpetuating the cycle of poverty in affected regions worldwide.
View Article and Find Full Text PDFThe WIRS motifs in Fat2 are required for Drosophila egg chamber rotation but not for elongation.
Development
January 2025
School of Science, Technische Universität Dresden, 01062 Dresden, Germany.
The elongation of tissues and organs is important for proper morphogenesis in animal development. In Drosophila ovaries, the elongation of egg chambers involves aligned Collagen IV fiber-like structures, a gradient of extracellular matrix stiffness and actin-based protrusion-driven collective cell migration, leading to the rotation of the egg chamber. Egg chamber elongation and rotation depend on the atypical cadherin Fat2.
View Article and Find Full Text PDFAntibody responses against influenza A decline with successive years of annual influenza vaccination.
NPJ Vaccines
January 2025
WHO Collaborating Centre for Reference and Research on Influenza, Royal Melbourne Hospital, at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia.
Influenza vaccine effectiveness and immunogenicity can be compromised with repeated vaccination. We assessed immunological markers in a cohort of healthcare workers (HCW) from six public hospitals around Australia during 2020-2021. Sera were collected pre-vaccination and ~14 and ~180 days post-vaccination and assessed in haemagglutination inhibition assay against egg-grown vaccine and equivalent cell-grown viruses.
View Article and Find Full Text PDFField testing of recombinant subunit vaccines against in lambing ewes demonstrates a lack of efficacy in the face of a multi-species parasite challenge.
Front Parasitol
March 2024
Disease Control Department, Moredun Research Institute, Edinburgh, United Kingdom.
Introduction: We previously demonstrated efficacy of an 8-antigen recombinant subunit vaccine against a single species homologous challenge in lambs and in lambing ewes in pen trials. We subsequently demonstrated efficacy of a simplified, 2-antigen, version of this vaccine in lambs in pen trials. Here, we test both vaccines in lambing ewes in a field setting.
View Article and Find Full Text PDFA novel and quick egg yolk immunoglobulin y antibody extraction method leveraging the protein liquid-liquid phase separation principle.
Poult Sci
January 2025
Chinese-German Joint Laboratory for Natural Product Research, Shaanxi International Cooperation Demonstration Base, Shaanxi University of Technology, Hanzhong 723000, Shaanxi, PR China; Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Campus de Gualtar, Braga 4710-057, Portugal; Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada. Electronic address:
This study presents a novel and efficient method for extracting immunoglobulin Y (IgY) antibodies from egg yolk based on the principle of liquid-liquid phase separation (LLPS) induced by polyethylene glycol 8000 (PEG 8000). Initial delipidation of egg yolk samples with varying PEG 8000 concentrations demonstrated optimal delipidation efficiency and protein recovery at 2.5 % PEG 8000 concentration.
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!