This report describes the kinetics of T-cell responses to a panel of mycobacterial antigens (PPD-M, PPD-A, ESAT-6, Ag85, 38kD, MPB64, MPB70, MPB83, hsp16.1, hsp65, and hsp70) following experimental infection of cattle with Mycobacterium bovis. Increased antigen-specific lymphocyte proliferation, gamma interferon, and interleukin-2 responses were observed in all calves following infection. Posit...

Background: Discriminating latent tuberculosis infection (LTBI) from active TBI may be challenging. The objective of this study was to produce the recombinant L-alanine dehydrogenase (AlaDH) antigen and evaluate individuals with LTBI, those with active TBI, and uninfected individuals by enzyme-linked immunospot assay (ELISPOT) in order to distinguish LTBI from active TBI.Methods: This explorato...

Background: Controling Latent Tuberculosis Infection (LTBI) is important for the End TB Strategy program. The prevalence of LTBI and reactivation to active tuberculosis are increased in immunodeficiency conditions, such on hemodialialysis patients. Laten can be diagnosted by Tuberculin Skin Test (TST) immunoglobulin release assay (IGRA). This diagnostic study aimed determine agreement level TST...

This study aimed to construct a bicistronic DNA vaccine expressing fusion antigen Hsp65-Esat-6 of Mycobacterium tuberculosis with cytokine GM-CSF as a molecular adjuvant (pIRES-Hsp65-ESAT-6-GM-CSF, pIRHEG), and the immune response in mice. C57BL/6 mice were immunized with the recombinant plasmid to detect the titer of antibodies, lymphocyte proliferation, the ratio of CD4, CD8 T cell and IFN ~ ...

CD4 T cell deficiency or defective IFNγ signaling render humans and mice highly susceptible to Mycobacterium tuberculosis (Mtb) infection. The prevailing model is that Th1 CD4 T cells produce IFNγ to activate bactericidal effector mechanisms of infected macrophages. Here we test this model by directly interrogating the effector functions of Th1 CD4 T cells required to control Mtb in vivo. While...

Preface This report is a summary of the work which I performed on cochlear modeling within the framework of a 2 year cooperation between ESAT-KULeuven and IPO-Eindhoven. This report gives a detailed overview of the development of a computational auditory model and of the obstacles that one can expect on the road towards it. For the casual reader some of the mathematics in it will be painful, bu...

background: mycobacterium (m.) bovis is the agent of bovine tuberculosis (tb) in a range of animal species, including humans. recent advances in immunology and the molecular biology of mycobacterium have allowed identification of a large number of antigens with the potential for the development of a new tb vaccine. the esat-6 and cfp-10 proteins of m. bovis are important structural and function...