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The purpose of this study is to identify differences in TB specific immune responses among immunosuppressed patients latently infected with TB and patients with active TB.
Immunosuppressed patients latently infected with TB are at higher risk of developing active TB than patients with normal immune functions. Especially two patient categories are at risk: HIV positives and patients receiving TNF-a blocking medication. Existing methods of diagnosis and surveillance of latent TB infection can not identify who will develop active TB and who can control the infection. There is a need for better understanding of TB specific immune functions,as we believe deficient TB specific immune reactions is a key in reactivation of latent TB infection.
In this study we follow groups of latent TB infected patients with either rheumatoid arthritis or HIV. We follow the patients during treatment with TNF-a blocking medication, HAART treatment or prophylactic TB medication. Results are correlated to patients with active TB, latent TB and healthy controls.
Observational Model: Defined Population, Time Perspective: Longitudinal, Time Perspective: Prospective
Infectious disease department University Hospital Hvidovre
Hvidovre University Hospital
Published on BioPortfolio: 2014-07-23T21:46:20-0400
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The dormant form of TUBERCULOSIS where the person shows no obvious symptoms and no sign of the causative agent (Mycobacterium tuberculosis) in the SPUTUM despite being positive for tuberculosis infection skin test.
Tuberculosis of the brain, spinal cord, or meninges (TUBERCULOSIS, MENINGEAL), most often caused by MYCOBACTERIUM TUBERCULOSIS and rarely by MYCOBACTERIUM BOVIS. The infection may be limited to the nervous system or coexist in other organs (e.g., TUBERCULOSIS, PULMONARY). The organism tends to seed the meninges causing a diffuse meningitis and leads to the formation of TUBERCULOMA, which may occur within the brain, spinal cord, or perimeningeal spaces. Tuberculous involvement of the vertebral column (TUBERCULOSIS, SPINAL) may result in nerve root or spinal cord compression. (From Adams et al., Principles of Neurology, 6th ed, pp717-20)
Pathological conditions of the CARDIOVASCULAR SYSTEM caused by infection of MYCOBACTERIUM TUBERCULOSIS. Tuberculosis involvement may include the HEART; the BLOOD VESSELS; or the PERICARDIUM.
TUBERCULOSIS that involves any region of the GASTROINTESTINAL TRACT, mostly in the distal ILEUM and the CECUM. In most cases, MYCOBACTERIUM TUBERCULOSIS is the pathogen. Clinical features include ABDOMINAL PAIN; FEVER; and palpable mass in the ileocecal area.
Tuberculosis of the mouth, tongue, and salivary glands.
Cytokine Tumour Necrosis Factor (TNF)
TNF is a compound that is classified as a cytokine which plays a central role in the cellular mechanisms of apoptosis or cell death. However, there are a number of different kinds of TNF, just under twenty, but the family of molecules have very similar a...