Immune Thrombocytopenic Purpura
Conditions
Brief summary
Immune thrombocytopenia is an acquired autoimmune disease, in which platelets are opsonized by auto-antibodies and destroyed by phagocytic cells .Genetic polymorphisms in the immune mediators have been suggested to play a pivotal role in the pathogenesis of many autoimmune disorders . Several genetic polymorphisms of the immune system genes have been described in ITP such as interleukins, tumor necrosis factors (TNF) alpha and beta, and interferon-gamma., These polymorphisms were found to be associated with an increased risk of ITP progression or exacerbation .CD40 is a co-stimulatory 4348 kDa glycoprotein molecule composed of 277 amino acid residues which belongs to the tumor necrosis family. It is encoded by a gene which is located at chromosome 20q11-13, expressed mainly on antigen presenting cells (APCs), some non-immune cells and tumors.Antinuclear antibodies (ANA) is a collective term for a large and heterogeneous group of circulating autoantibody. Reflecting their clinical importance, ANA are diagnostic, prognostic or classification criteria for many autoimmune diseases.
Interventions
Genotyping of rs1883832C/T related single-nucleotide polymorphism by real time pcr
Sponsors
Study design
Eligibility
Inclusion criteria
* sign an informed written consent from the patients or their parents * patient with newly diagnosed ITP * patient age \> 1 year and \< 65 years and both sexes are included.
Exclusion criteria
* Refusal to sign an informed written consent * patient with persistent ITP, patient with secondary immune thrombocytopenia * patient age \< 1 year or \> 65 years.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| rs1883832C/T related single-nucleotide polymorphism | 6 months | effect of single-nucleotide polymorphism of CD40 gene (rs1883832 C/T) on the risk of immune thrombocytopenic purpura |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| ANA | 6 months | ANA in immune thrombocytopenic purpura |
Countries
Egypt