Track topics on Twitter Track topics that are important to you
Tuberculosis (TB) remains a major public health problem nowadays. About 30% of the world population is infected with Mycobacterium tuberculosis. There is an increase in the number of cases of classic tuberculosis in developing countries, even if number of cases are declining in developed countries. However, in developed countries this decrease is counterbalanced by the emergence of multidrug resistant (MDR) strains of the bacteria.
There are also latent forms (1/3 of the world population) of the infection that can be reactivated in one case out of ten. Each year, about 2 million people die of tuberculosis and 9 million new cases are identified, including about 500,000 cases of MDR TB.
The spread of this disease as well as the increasing number of cases of MDR tuberculosis, reinforce the need for research and development of strategies of diagnosis and management of this affection.
Nowadays, the culture is the gold standard for the TB diagnosis but this technique needs at least three weeks to be performed. The objective of this study is to evaluate the sensitivity and specificity of histopathological and molecular techniques (PCR) on paraformaldehyde fixed and embedded in paraffin tissues for a faster diagnosis of tuberculosis in current practice, in order to administrate an efficient treatment as soon as possible.
Observational Model: Case-Only, Time Perspective: Retrospective
Histopathological study, Molecular study (Polymerase chain reaction)
Active, not recruiting
Lille Catholic University
Published on BioPortfolio: 2016-12-01T16:08:22-0500
The purpose of this study is to compare the diagnostic efficacy of nested and realtime polymerase chain reaction for Mycobacterium tuberculosis using EBUS-TBNA samples in patients with iso...
The purpose of this study is to conduct a randomized clinical trial to compare an antibiotic strategy based on a novel diagnostic test, polymerase chain reaction (PCR) to usual care, in cr...
The primary purpose of this study is to validate the sensitivity and specificity of the Respirio Flu Test and the eLab Flu Test in detecting Influenza A as compared to the gold standard fo...
RATIONALE: Finding genetic markers for thyroid cancer in a biopsy specimen may help doctors diagnose thyroid cancer. PURPOSE: This clinical trial is studying how well genetic analysis wor...
In this pilot study, the investigators propose to characterize the pattern of activation of the kynurenine pathway of tryptophan metabolism in peripheral macrophages of patients with schiz...
To report early confirmation of Mycobacterium tuberculosis (MTB) endophthalmitis by detection of 85B mRNA in vitreous by a reverse transcriptase polymerase chain reaction (RT-PCR) technique.
A cross-sectional study was undertaken to know the herd prevalence and evaluate the single intradermal tuberculin testing (SITT), culture isolation, and polymerase chain reaction (PCR) analysis for th...
Cysteine-cysteine chemokine ligand 5 (CCL5) with immunoregulatory and inflammatory activities has an important role in granuloma formations that activates and stimulates T-cells and macrophages. Cyste...
Little is known about latent infection and molecular characterisation of Neospora caninum in sheep (Ovis aries). In this study, 330 sheep samples (180 hearts and 150 brains) were analysed for N. canin...
This study was planned to study the genotypes of verocytotoxigenic Escherichia coli (VTEC) in fecal samples of deer due to its public health significance.
A heat stable DNA-DIRECTED DNA POLYMERASE from the bacteria Thermus aquaticus. It is widely used for the amplification of genes through the process of POLYMERASE CHAIN REACTION. EC 2.7.7.-.
MOLECULAR BIOLOGY techniques used in the diagnosis of disease. Included are such techniques as IN SITU HYBRIDIZATION of chromosomes for CYTOGENETIC ANALYSIS; OLIGONUCLEOTIDE ARRAY SEQUENCE ANALYSIS of gene expression patterns in disease states; identification of pathogenic organisms by analysis of species specific DNA sequences; and detection of mutations with POLYMERASE CHAIN REACTION.
A technique that labels specific sequences in whole chromosomes by in situ DNA chain elongation or PCR (polymerase chain reaction).
In vitro method for producing large amounts of specific DNA or RNA fragments of defined length and sequence from small amounts of short oligonucleotide flanking sequences (primers). The essential steps include thermal denaturation of the double-stranded target molecules, annealing of the primers to their complementary sequences, and extension of the annealed primers by enzymatic synthesis with DNA polymerase. The reaction is efficient, specific, and extremely sensitive. Uses for the reaction include disease diagnosis, detection of difficult-to-isolate pathogens, mutation analysis, genetic testing, DNA sequencing, and analyzing evolutionary relationships.
A DNA-dependent DNA polymerase characterized in E. coli and other lower organisms. It may be present in higher organisms and has an intrinsic molecular activity only 5% of that of DNA Polymerase I. This polymerase has 3'-5' exonuclease activity, is effective only on duplex DNA with gaps or single-strand ends of less than 100 nucleotides as template, and is inhibited by sulfhydryl reagents. EC 220.127.116.11.
Tuberculosis (TB) is an infectious disease caused by bacteria belonging to the Mycobacterium tuberculosis complex. Over nine million new cases of TB, and nearly two million deaths from TB, are estimated to occur around the world every year, and new inf...
Alternative Medicine Cleft Palate Complementary & Alternative Medicine Congenital Diseases Dentistry Ear Nose & Throat Food Safety Geriatrics Healthcare Hearing Medical Devices MRSA Muscular Dyst...
Antiretroviral Therapy Clostridium Difficile Ebola HIV & AIDS Infectious Diseases Influenza Malaria Measles Sepsis Swine Flu Tropical Medicine Tuberculosis Infectious diseases are caused by pathogenic...