Lung function data of North-African patients with rheumatoid arthritis: a comparative study between anti-citrullinated peptides antibodies positive and negative patients.

Introduction: Although lung damages are among the leading causes of death from Rheumatoid Arthritis (RA), few studies have assessed the spirometric and plethysmographic data and profile of patients with RA, particularly those with Anti-Citrullinated Peptides Antibodies Positive (ACPA+).

Aim: To compare the spirometric and plethysmographic data and profile of RA patients ACPA+ and ACPA-.

Methods: This comparative pilot study was performed over a two-year period (2018-2019) in Algiers (Algeria).

Autoantibody profile in a cohort of Algerian patients with systemic sclerosis.

Aim: To describe the autoantibody profile in a cohort of Algerian patients with systemic sclerosis (SSc) and to determine clinical associations between SSc-related autoantibodies, disease subtypes and specific clinical features.

Methods: Consecutive Algerian patients with SSc were included in the present study. In addition to clinical characterization, all subjects underwent autoantibody testing using indirect immunofluorescence, immunoenzymatic, and line immunoblot assays.

Th17 pathway genes polymorphisms in Algerian patients with systemic sclerosis.

Objective: TH17 cells have involved in the pathogenesis of several autoimmune diseases including systemic sclerosis (SSc). The aim of our study was to investigate an association of IL-17A, IL-17F, IL-21, IL-23R and STAT3 genes with SSc susceptibility, and clinical and immunological phenotypes.

Patients And Methods: The case-control study included 136 patients suffering from SSc and 317 healthy controls of the Algerian population.

Prevalence of BTK mutations in male Algerian patterns with agammaglobulinemia and severe B cell lymphopenia.

X linked agammaglobulinemia (XLA) is the first described primary immunodeficiency and the most common form of agammaglobulinemia. It is characterized by susceptibility to recurrent infections, profound decrease of all immunoglobulin isotypes and very low level of B lymphocytes in peripheral blood. The disorder is caused by mutations in the Bruton's Tyrosine Kinase (BTK).

Association study of human leukocyte antigen-DRB1 alleles with rheumatoid arthritis in Algerian patients.

Introduction: Rheumatoid arthritis (RA) is a chronic, systemic, inflammatory and multifactorial disease. Genetic predisposition seems to play an important role. The aim of this study is to explore the relationship between human leukocyte antigen (HLA)-DRB1 alleles and susceptibility, clinical and biological features of RA in an Algerian patient population.

Clinical, immunological and genetic features in eleven Algerian patients with major histocompatibility complex class II expression deficiency.

Presenting processed antigens to CD4+ lymphocytes during the immune response involves major histocompatibility complex class II molecules. MHC class II genes transcription is regulated by four transcription factors: CIITA, RFXANK, RFX5 and RFXAP. Defects in these factors result in major histocompatibility complex class II expression deficiency, a primary combined immunodeficiency frequent in North Africa.