Evaluation of humoral immune function in patients with chronic idiopathic thrombocytopenic purpura

• Published in: Iranian journal of allergy, asthma, and immunology Vol. 12; no. 1; pp. 50 - 56
• Main Authors: Rahiminejad, Mohammad Saeid, Mirmohammad Sadeghi, Mehrdad, Mohammadinejad, Payam, Sadeghi, Bamdad, Abolhassani, Hassan, Dehghani Firoozabadi, Mohammad Mehdi, Fathi, Seyed Mohammad, Rezvani, Hamid, Bahoush, Gholamreza, Ehsani, Mohammad Ali, Faranoush, Mohammad, Mehrvar, Azim, Torabi Sagvand, Babak, Ghadiani, Mojtaba, Rezaei, Nima, Aghamohammadi, Asghar
• Format: Journal Article
• Language: English
• Published: Iran Tehran University of Medical Sciences 01.03.2013
• Subjects: Adolescent; Adult; Antibodies, Bacterial - blood; Antibodies, Bacterial - immunology; Autoimmune diseases; Case-Control Studies; Child; Child, Preschool; Chronic Disease; Common Variable Immunodeficiency - blood; Common Variable Immunodeficiency - complications; Common Variable Immunodeficiency - immunology; Family medical history; Female; Females; Humans; Idiopathic; Immune system; Immunity, Humoral - drug effects; Immunoglobulin A - blood; Immunoglobulin A - immunology; Immunoglobulin G - blood; Immunoglobulin G - classification; Immunoglobulin G - immunology; Immunologic Deficiency Syndromes; Male; Methods; Middle Aged; Patients; Pneumococcal Vaccines - administration & dosage; Purpura; Purpura, Thrombocytopenic, Idiopathic - blood; Purpura, Thrombocytopenic, Idiopathic - complications; Purpura, Thrombocytopenic, Idiopathic - immunology; Splenectomy; Streptococcus pneumoniae; Thrombocytopenic; Vaccines
• ISSN: 1735-1502; 1735-5249

Coincidence of autoimmune diseases such as immune thrombocytopenic purpura (ITP) with immunodeficiencies has been reported previously in patients who suffered from primary antibody deficiency (PAD). But there is no original study on immunological profiles of ITP patients to find out their probable immune deficiency. In this case-control study, ITP patients' humoral immunity was investigated for diagnosis of PAD in comparison with normal population. To evaluate the humoral immune system against polysaccharide antigens, patients' serum immunoglobulin levels were measured and a 23-valent pneumococcal capsular polysaccharide vaccine (PPV23) was administrated to evaluate the antibody response to vaccination. In this study, 14 out of 36 patients (39%) were diagnosed with antibody mediated immune deficiency including 2 patients (5.5%) with immunoglobulin class deficiency and 4 (11%) with IgG subclass deficiency. The remaining patients suffered from specific antibody deficiency. The most frequent deficiency in ITP patients was specific antibody deficiency.Therefore, immunological survey on ITP patients may be important especially for those who have undergone splenectomy.