BACKGROUND Pulmonary tuberculosis (PT) is one of the endemic diseases in Iraq, and among the suggested predisposing factors are alleles of the human leukocyte antigen (HLA) system. We sought to investigate the association between HLA-class I (A and B) and -class II (DR and DQ) alleles in a sample of PT Iraqi patients. METHODS lymphocytes of 105 PT patients and 40 controls were phenotyped for ...

Indian population is well known for its genetic diversity. Among the numerous endogamous communities, which are restricted very much by custom, marriage and occupation we have collected 195 unrelated individuals, belonging to Marathi, Gujarathi, Punjabi, South Indian, Christian and Muslim population groups. We present here the HLAA, B, and C locus antigen distribution of these population groups...

BACKGROUND Spondyloarthropathies are a group of closely related inflammatory arthritis which involve the axial skeleton and are negative for rheumatoid factor. OBJECTIVE This case-control study was conducted to examine HLA- B27 positivity in patients with seronegative spondyloarthritis (SSA) as per ESSG criteria and compare the frequency with healthy controls because a lower positivity is rep...

Background. Microlymphocytotoxicity (MLCT) and flowcytometry (FC) are the conventional serological methods to detect HLA-B* 27. Due to some disadvantages in these methods, most of the HLA laboratories have now switched over to molecular methods. Molecular techniques based on commercial kits are expensive; as such many laboratories with limited funds in developing countries cannot afford these t...

Because of our longitudinal studies of early rheumatoid arthritis (RA) in young adults'06'210211 we have been asked to compare the findings in males with Reiter's syndrome (RS) with those in patients with seronegative RA or arthritis of unknown diagnosis. Patients and methods We present the results of a preliminary analysis of the cases of 38 younger males first diagnosed as having arthritis be...

OBJECTIVE To investigate the mechanism underlying the development of chronic hepatitis B virus infection (HBV) in Turkish population using HLA tissue typing. METHODS The study group I consisted of 20 patients with HBV-related chronic liver disease (cirrhosis, chronic active hepatitis or chronic persistent hepatitis). The study group II included 30 HBV chronic carriers. The control group consi...

OBJECTIVES To analyse frequency of HLA class II antigens (DR and DQ) and lymphocytotoxic autoantibodies in patients with systemic lupus erythematosus (SLE) and subsets with or without neuropsychiatric involvement. METHODS Ninety three patients with SLE (42 with neuropsychiatric features) were typed for HLA class II antigens and investigated for the presence of lymphocytotoxic autoantibodies b...

In a young woman with ulcerative colitis, hypoimmunoglobulinemia, and humoral immunodeficiency, lymphocyte counts vary between 600 and 1,000 per mm(3) with 0.5-1.5% bone marrow-derived (B) cells and 98-99% thymus-derived (T) cells. Anti-lymphocyte antibodies were detected by immunofluorescence and by microlymphocytotoxicity with increased reactivity at +4 degrees C. They belonged to the IgM cla...

A few family studies have evaluated HLA antigens in Alport's syndrome; however, there are no large population studies. In the present report, we studied 40 unrelated white patients with Alport's syndrome seen at the Unit of Renal Transplantation, Faculty of Medicine of Ribeirão Preto, São Paulo, Brazil. HLA-A, -B, -DR and -DQ antigens were typed using a complement-dependent microlymphocytotoxic...

Six hundred million people are at risk of infection by Schistosoma mansoni. MHC haplotypes have been reported to segregate with susceptibility to schistosomiasis in murine models. In humans, a major gene related to susceptibility/resistance to infection by S. mansoni (SM1) and displaying the mean fecal egg count as phenotype was detected by segregation analysis. This gene displayed a codominant...