Résumé
Background: juvenile idiopathic arthritis [JIA] is a broad term that describes a clinically heterogeneous group of arthritides of unknown cause, which begin before 16 years of age affecting one or more joints, lasting for at least 6 weeks. PADI4 is one member of PADI gene family. The PADI gene region is located at chromosome 1p36. It codes for enzymes responsible for the posttranslational conversion of arginine residues into citrulline. There are likely to be different genetic risk factors for JIA in different ethnic groups. Therefore, here we sought an influence of HLA-SE and PADI4 on JIA susceptibility in Japanese, because both HLA-SE and PADI4 were reported as significant genetic risk factors for RA independent of ethnicity. Recently, association of PADI4 gene polymorphisms with ACPA positivity and disease activity in polyarticular JIA
Aim of the Work: the aim of this work is to investigate PADI polymorphism rs2240340 to determine whether this polymorphism could be a marker of susceptibility to JIA in Egyptian children and adolescents and whether this single nucleotide polymorphism [SNP] is correlated with clinical parameters in JIA
Patients and Methods: the ethical approval was obtained from the hospital ethical research committee and each patient entering the study will sign an informed consent. Thirty patients included in this study with polyarticular types of juvenile idiopathic arthritis and all of them fulfilled ILAR classification criteria [2004]. All were under the age of sixteen at time of diagnosis. They were recruited from Physical Medicine, Rheumatology and Rehabilitation Department at Al-Hussein and Sayed Galal University Hospitals during the period from January 2018 to June 2018. In this study we measure PADI4 polymorphism and correlate with disease activity in polyarticular JIA in Egyptian patients
Results: association of PADI4 gene polymorphisms with ACPA positivity and disease activity in polyarticular JIA and PADI4 gene polymorphism can be used as a marker of susceptibility to polyarticular JIA
Conclusion: PADI4 gene polymorphism became a marker of susceptibility to polyarticular JIA and gene polymorphism correlated with disease activity in ACPA positivity in polyarticular positive JIA
Résumé
Autoimmune hypothyroidism commonly affecting females is one of the commonest causes of thyroid disease in adults. Among the various autoantibody tests applied in research and clinical practice, the determination of thyroid microsomal antibodies [TPO] and thyroglobulin antibodies [TG Ab] still retains its strong value in the screening for thyroid autoimmunity. Helicobacter pylori [H. pylori] infection plays an important role in the pathogenesis of chronic gastritis, peptic ulcer disease, MALT [Mucosa Associated lymphocyte T] Lymphoma and gastric cancer. The aim of this work was to study the relationship between H.pylori infection and autoimmune hypothyroidism in Egyptian population. This study was carried out on 147 Egyptian persons divided into 3 groups: Hypothyroid Group: Included 49 patients with autoimmune hypothyroidsm and positive antithyroid antibodies with no history of dyspeptic symptoms or peptic ulcer. H.pylori positive Group: Included 50 patients with dyspeptic symptoms or peptic ulcer with H.pylori positive antibodies with no history of any thyroid disease. Control Group: Included 48 apparently healthy persons serving as control. Serum Free T3, Free T4 and TSH were done for all subjects together with Antimicrosomal antibodies [TPO-Ab], Antithyroglobulin antibodies [TG-Ab] and Helicobacter Pylori antibodies [H. pylori Ab]. There was no significant difference between all groups as regards age. Also there was significant difference between Hypothyroid and H.pylori positive groups as regarding TSH and Free T3, TG-Ab, TPO-Ab and H. pylori Ab. There is also significant difference between Hypothyroid and control groups regarding TSH, free T3, TG-Ab, TPO-Ab, and H. pylori Ab. There is significant difference between H.pylori positive and control groups regarding FT3 and H. pylori AB. Hypothyroid Group was divided according to the presence of H. pylori Ab into ve and +ve H. pylori Ab subgroups. There was significant difference between the ve and +ve subgroups as regard TSH, free T4 and TG-Ab. H.pylori positive Group was divided according to the presence of TG Ab and TPO Ab into-ve and +ve subgroups. There was significant difference between the -ve and +ve cases in TSH, free T45 Free T3, and H.Pylori Antibody. Positive correlation was found between H pylori Ab titer and age, TSH, TG-Ab and TPO-Ab titers. There was also negative correlation between H. pylori Ab titer and free T4. There is no correlation between H. pylori Ab titer and free T3. [Correlation is referred to all subjects of the study = 147]. This study revealed that patients with positive TG and TPO antibodies, showed [+ve] H. pylori Ab, with significant high titer in their sera, The patients with positive H. Pylori Ab showed high serum titer of TG-Ab. In our study H. pylori-Ab correlates to thyroid function tests and thyroid antibodies