Background: Anti-neutrophil cytoplasmic antibodies (ANCA)minor subsets (elastase , lysozyme , cathepsin G , lactoferrin & BPI )are detected among systemic lupus erythromatus patients causing vasculitis. Systemic lupus erythematosus (SLE) is the prototypic immune complex disease, characterized by excessive autoantibody production, immune complex formation and immunologically mediated tissue injury.
Methods& Patients: A cross-sectional study was conducted on two main groups ,74 patients with SLE and 30 apperantly healthy control volunteers referred to immunology department in teaching laboratories \ medical city during period of (1st of march – 31st of May) 2011. Antinuclear antibody (ANA) ,Cathepsin G, elastase, lactoferrin, lysozyme, bactericidal permeability increasing protein and C1q were detected by enzyme-linked immunosorbent assay (ELISA) technique. While dsDNA was detected by indirect immunofluorescent(IIF) technique and C3,C4 by single radial immunodiffusion (SRID ) .
Result: Among patients group the mean levels of Cathepsin G (9.19 IU/ml), Elastase( 8.46 IU/ml) , Lysozyme (6.81 IU/ml), Lactoferrin (9.2 IU/ml)and BPI (5.59 IU/ml). Among positive ANA result cathepsin G was detected in high percent (35.1%). In regard to dsDNA positive result elastase Ab was detected in 18 (46.3%) with significant P value 0.00,while Cathepsin G (47.4%) & lactoferrin Ab(31.6%)were significantly found among C1q positive patients .Interestingly lactoferrin Ab associated with low complement C3&C4 levels .
Conclusion: Anti-neutrophil cytoplasmic antibody has a role among SLE patients in which cathepsin G detected in 35.1% among ANA positive patients ,while elastase & cathepsin G,significantly associated with disease activity (positive dsDNA,C1q) ,on other hand lactoferrin had a significant results in association with renal involvement (low C3,C4 levels ).
Background:
Background: The etiology of Systemic lupus erythematosus seems to be multifactorial including environmental as well as genetic factors. The genetic predisposition was supported by the occurrence of Systemic lupus erythematosus in more than one member of a family as well as in identical twins.
Aim of the study: To determine the human leukocyte antigen typing class I (A and B) in patients with Systemic Lupus Erythematousus disease.
Methods: Patients group consisted of 44 Iraqi Arab Muslims patients with Systemic lupus erythematosus disease who presented to Baghdad Medical City from January 2010 to January 2012 from Baghdad Province. The second control group consisted from 80 Iraqi Arab Muslims volunteers from hospital employees and t
Tuberculosis is caused by Mycobacterium tuberculosis; it is considered as one of the most common, infectious diseases and major causes of morbidity and mortality worldwide. A prospective study was conducted to obtain more clarification about the impact of causative agent and its treatment to enhance autoantibodies production such as ANCA and BPI which used as diagnostic markers for several diseases, and to provide further insight into the classical risk factors (age and sex).Seventy patients with tuberculosis involved in this study, 35 of them were untreated and 35 with treatment administration these patients were attending to directorate of general health national reference laboratory in Baghdad during the period between November/ 2012
... Show MoreSystemic lupus erythematosus (SLE) is an autoimmune disease, in which the etiology is not well-understood; however, interactions between environmental and genetic factors in predisposed individuals have been recognized. As a consequence, immunological alternations occur and immune cells are involved, especially T and B lymphocytes that are activated to produce different immune components. Among these components are autoantibodies that react with self-antigens aside from non-self-antigens due to the proposed theory of molecular mimicry. Accordingly, the current study was designed to examine the profile of different autoantibodies in SLE patients by using the indirect membrane based enzyme immunoassay
Background: Systemic sclerosis (SSc) is a chronic autoimmune illness, which is consider by three main features: Sclerotic changes in the skin and internal organs, Vasculopathy of small blood vessels, Particular autoantibodies (1). The most important autoantibodies appeared significantly in SSc patients are anti-topoisomerase I autoantibody (Scl-70), anti-centromere autoantibody (ACA), and anti-RNA polymerase III autoantibody (RNAP3) (2). Anti-centromere antibodies (ACA) are infrequent in rheumatic conditions and in healthy persons but occur commonly in limited systemic sclerosis (CREST syndrome), and rarely appeared in the diffuse form of systemic sclerosis (3). Anti-Ro/SSA and antiLa/SSB, antibodies directed against Ro/La ribonucleoprot
... Show MoreBackground: Nucleosomes are fundamental units of chromatin released by internucleosomal cleavage during cell apoptosis, and nucleosomal material has been demostraded in the surface blebs of opoptotic cells. recent studies have shown the presence of antinucleosome antibodies in systemicc lupus erythematosus (SLE).
Background: Tuberculosis (TB) is still a major global public health problem worldwide. The global prevalence of Mycobacterium (M tuberculosis) infection has been estimated in 32% of the world population with more than 8 million new cases diagnosed each year.
Materials and Methods: A total of 192 M tuberculosis complex isolates were collected from patients with positive sputum smear who had been treated previously with the four main anti- tuberculosis drugs for more than two months. The isolates were identified by their colonial morphology, pigmentation, shapes on Ziehl-Neelsen smears, growth on Löwenstein-Jenson medium and biochemical tests as niacin and nitrate tests. A propor
... Show MoreBackground: There is a general acceptance which illustrated that auto antibodies act as a central immunological disturbance in most of the auto immune diseases, among these auto immune diseaselies the SLE
Patients and Methods: Thirty five patients with SLE were compared to twenty age and sex matched, control subjects and studied for the presence of auto antibodies, plus IL-4 and IL-6 using Elisa method and immune fluorescent method (for ANA only)
Results: Data showed that IL-6 detectable levels were statistically significant in patients with positive anti ds-DNA, but not significant statistically in ANA positive patients although it was detected in 24 (70.6%) of positive ANA patients, while there was no sta
mucosal secretions as well as in secondary granules of polymorphonuclear leukocytes. Anti-Elastase antibodies, anti-Lactoferrin antibodies,anti-Cathapsin G antibodies and anti-Lysozyme antibodies, which belong to Perinuclear Anti-Neutrophil Cytoplasmic Antibodies(pANCA) have been described in several immunomediated diseases, including Rheumatoid Arthritis .
Objectives: Investigate the prevalence of anti-Elastase antibodies, anti-Lactoferrin antibodies,anti-Cathapsin G antibodies , anti- Lysozyme antibodies and rheumatoid factor in patients with rheumatoid arthritis in comparison to healthy control.
Patients &Methods: The study involved 40 Rheumatoid Arthritis patients who were referred to Immunolog