Publications by authors named "Dalia Samaha"
Multiple sclerosis (MS) is a chronic autoimmune-mediated demyelinating disease of the central nervous system (CNS) that is usually associated with varying degrees of progressive disability. Chitinase-3-like protein-1 (CHI3L1) has attracted growing attention as a marker of ongoing inflammation and oncogenic transformation. The aim of this work was to assess the diagnostic accuracy of CHI3L1 versus IgG oligoclonal bands (OCBs) in the cerebrospinal fluid (CSF) of newly diagnosed relapsing remitting MS (RRMS) patients to throw light on a new simpler non subjective potential diagnostic marker in MS.
View Article and Find Full Text PDFHematopoietic stem cell transplantation (HSCT) is a key therapeutic strategy for a number of hematological malignancies and non-malignant disorders of the hematopoietic system. One of the most important events post SCT is the immune system reconstitution-a process characterized by a considerable dynamic and is critical in promoting overall survival of transplant patients, restoring immune protection from opportunistic infections, and mediating an alloreactive graft-versus-tumor effect against residual malignant disease. T cell receptor excision circles (TRECs) and Kappa deleting recombination excision circles (KRECs) are byproducts of T cells and B cells receptor recombination processes, respectively and can be used in monitoring denovo synthesis of T cells and B cells post SCT.
View Article and Find Full Text PDFTo examine the cross-talk between NK cells and DCs in hepatitis C virus (HCV) infection, we isolated monocytes and NK cells from 20 chronic HCV patients and 20 healthy controls. Monocytes were used to generate immature DCs which were pulsed with HCV peptides (core, NS3-NS4, and NS5). Four different cocultures were carried out: E1, both DCs and NK cells were from a chronic HCV patient; E2, NK cells from a healthy control cocultured with DCs from a chronic HCV patient; E3, NK cells from a chronic HCV patient cocultured with DCs from a healthy control; and E4, both DCs and NK cells were from a healthy control.
View Article and Find Full Text PDFObjective: To assess serum sclerostin levels in relation to severity of arthropathy and bone mineral density (BMD) in children with hemophilic arthropathy.
Methods: This cross-sectional study included 40 male children suffering from Hemophilia A, and 10 matched healthy controls. Assessment of factor VIII deficiency degree, frequency of bleeding, type of treatment, body mass index (BMI), disease severity using the Hemophilia Joint Health Score (HJHS) and lumbar spine (LS) Z score for bone mineral density (BMD) using dual-energy X-ray absorbiometry was done.
Introduction: Tuberculosis (TB) remains a huge worldwide burden, despite extensive vaccination coverage with the Bacillus Calmette-Guérin (BCG), the only vaccine available against this disease, indicating that BCG-driven immunity is inadequate to protect the human population against TB. This underscore the critical necessitate to develop an improved TB vaccine, based on a better understanding of host-pathogen interactions and immune responses during mycobacterial infection.
Aim Of The Work: To examine whether the exogenous addition of IFN-β could improve dendritic cell (DC) response to Mycobacterium bovis (M.
Objectives: We aimed to investigate the influence of vitamin D on the production of the pro-inflammatory cytokine, interferon gamma (IFN-γ), and the anti-inflammatory cytokine, interleukin-10 (IL-10), in peripheral blood mononuclear cell (PBMC) cultures.
Methods: Thirty healthy subjects were investigated. Serum levels of calcium, 25(OH) D, and parathyroid hormone (PTH) were assessed.