Collagen triple helix repeat containing-1 (CTHRC1) is an essential marker for Rheumatoid Arthritis (RA), but its relationship with pro-inflammatory, anti-inflammatory, and inflammatory markers has been scantily covered in extant literature. To evaluate the level of CTHRC1 protein in the sera of 100 RA patients and 25 control and compare levels of tumour necrosis factor alpha (TNF-α), interleukin 10 (IL-10), RA disease activity (DAS28), and inflammatory factors. Higher significant serum levels of CTHRC1 (29.367 ng/ml), TNF-α (63.488 pg/ml), and IL-10 (67.1 pg/ml) were found in patient sera as compared to that in control sera (CTHRC1 = 15.732 ng/ml, TNF-α = 33.788 pg/ml, and IL-10 = 25.122 pg/ml). There was no significant correlation be

Background: Cytokines produced by inflammatory cells play a pivotal role in synovial inflammation and joint destruction in rheumatoid arthritis.
Patients and Methods: The cytokine serum levels were measured by EASIA (Enzyme amplified sensitivity immunoassay) in sera from 50 RA patients, and 40 healthy donors. Cytokine levels were compared in different RA subpopulations (positive or negative rheumatoid factor (RF), long term or recent onset disease, high or low disease activity). In addition, the possible association with other demographic and clinical parameters (gender, age, etc) was also analyzed.
Results: It was demonstrated that IL-2, IL-6 and IFN-δ levels were elevated in serum samples of RA pati

Background In rheumatoid arthritis, your immune system attacks the tissue lining the joints on both sides of your body. Other parts of the body may also be affected. Unsure of the exact cause. Two separate genes termed IL12A (p35) and IL12 encode the heterodimeric cytokine known as IL12 (p40). Several different hematopoietic cell types can have several different hematopoietic cell types that can generate antigen-presenting cells (APCs), including DCs and macrophages. Objectives This study aimed to investigate if the interleukin IL-12B gene's common polymorphisms in an Iraqi population were associated with RA. Material and methods Blood samples were taken from 70 Iraqi patients with RA illnesses and 30 Iraqi controls during the periods from

Background:
Rheumatoid arthritis (RA) is a chronic, inflammatory autoimmune disorder that causes the immune system to attack the joints. It is a disabling and painful inflammatory condition, which can lead to substantial loss of mobility due to pain and joint destruction. RA is a systemic disease, often affecting extra-articular tissues throughout the body including the skin, blood vessels, heart, lungs, and muscles. 
Patients and Methods: Enzyme immunoassay for Determination of human TNF- , IL-1 and GM-CSF in serumsamples from50 patients with a diagnosis of rheumatoid arthritis
Results: of cytokines showed a significant increase in TNF-alpha, IL-1 beta and GM-CSF in patients with rheumatoid arthrit

Background: Cytokines have an essential contribution to the inflammatory response and the development of chronic inflammation. Therefore, it has a pivotal role in the pathogenesis of rheumatoid arthritis (RA). Interleukins are closely related to RA, and the exact role of some interleukins in the pathogenesis of RA is not yet known.
Objectives: To evaluate the levels of interleukins and their ratio, since the levels of interleukins 35 and 39 in RA patients have not yet been determined in Iraq.
Patients and methods: An ELISA (enzyme-linked immunosorbent assay) was used to measure the levels of interleukins in the blood of 56 patients with RA and 44 healthy volunteers who were enrolled in the study from November 2021 to March 2022.

Rheumatoid arthritis is an autoimmune disorder that is highly prevalent, leading to gradual cartilage distraction, and therefore is important to diagnose in the early stage. This study aimed to estimate the level of rheumatoid factor (RF) and Anti-citrullinated protein (Anti-ccp) in the serum of female patients. We also investigated several female reproductive hormones in the patients and compared their levels in the premenopausal and postmenopausal phases. The study included 88 female subjects, 50 suffering from signs of rheumatoid arthritis who were attending AL-Yarmouk teaching hospital, Baghdad, Iraq, and 38 without clinical signs of RA as a control group. The ELISA technique was used to estimate all the studied parameters. The resul

Rheumatoid arthritis (RA) is one of the autoimmune diseases characterized by the synovial inflammation which causes organs and tissues damage especially synovial tissues and joints. The study included 50 serum samples from patients with rheumatoid arthritis (RA) when compared with 50 serum samples from healthy individuals as control with age range 35 – 60 years (41.3 ± 2.4 years vs. 41.0 ± 2.0 years, respectively). ELISA technique was used to assess the Anti-cyclic citrullinated peptide IgG antibody (anti-CCP IgG Ab) level, anti-rheumatoid factor IgG antibody (anti-RF IgG) and anti-Cytomegalovirus (anti-CMV IgG) antibodies frequencies in the studied groups. The present findings demonstrated that all RA patients have 100% seropositive fr

Background. Gene polymorphisms affect etanercept’s pharmacokinetics, pharmacodynamics, and side effects. This effect is evidenced by the extensive genetic variation in the drug’s targets. Objectives. This study aims to find the association between different genotypes of the promoter region of the TNF-α gene at -308G/A(rs1800629), -857C/T(rs1799724), -863 C/A(rs1800630), -1031 T/C (rs1799964), -806 C/T (rs4248158) and -376 G/A (rs1800750) and the side effects of ETN that occurred to Iraqi RA patients. Method. The trial included patients with rheumatoid arthritis who had been using ETN for at least six months. The participants were from the Baghdad Teaching Hospital Rheumatology Unit. The PCR was sequenced to determine the polymo

Background: Rheumatoid arthritis (RA) is an autoimmune disease, where the normal joint tissues attacked by body’s immune system, causing their inflammation. Cluster of Differentiation 69 (CD69) is a human transmembrane C-Type lectin protein encoded by the CD69 gene. It’s expression was induced by activation (in vivo and in vitro) of T lymphocytes and Natural Killer (NK) Cells. As CD69 early activation has been implicated in the pathogenesis of some inflammatory diseases, its expression on peripheral blood T-lymphocytes must be evaluated.
Objective: To evaluate the expression of CD69 on peripheral blood T-lymphocytes in RA Iraqi patients. 
Patients and methods: This study carried out between March 2

Background: Rheumatoid arthritis (RA) is an autoimmune disease that results in a chronic, systemic inflammatory disorder that may affect many tissues and organs, but principally attacks flexible (synovial) joints. Many cases are believed to result from an interaction between genetic factors and environmental exposures. Epstein-Barr virus (EBV) is associated with several autoimmune diseases, such as systemic lupus erythematosus, rheumatoid arthritis and multip