The coagulation pathways not only serve hemostatic functions but also appear to be important participants in inflammatory responses, including certain immunologically induced tissue lesions. Local deposition of fibrin is characteristically an early and active process in the immunologic lesions of experimental allergic encephalomyelitis (1, 2), acute proliferative glomerulonephritis (3), delayed...

Complex interactions occur among host defense cells during bacterial infection. Bacteria and bacterial products may enhance or inhibit the effector and regulatory activity of human lymphocytes. Accordingly, we tested the ability of human periodontal pathogens to activate peripheral blood lymphocytes using standard chromium-release assays to measure lymphocyte-mediated cytolysis. Human adherent-...

Central ossifying fibroma is a benign, slow-growing tumor of mesenchymal origin with a predilection for the mandibular premolar and molar areas. The immunophenotype of T cells involved in the antitumor response against this benign tumor is unknown. In this case report, we described a case of a 48-year-old woman presenting with a very large recurrent ossifying fibroma in the mandible, which was ...

Rabbit antisera were produced against pooled living lymphocytes from 25 patients with active systemic lupus erythematosus (SLE). Lymphocytes collected at plasmapheresis or venipuncture were frozen in liquid nitrogen and later coated with rabbit antibody to normal human tonsils and normal thymocytes immediately before intravenous immunization of rabbits. Antisera were subsequently extensively ab...

Background: Vitamin D plays a key role in the modulation of numerous immune functions against infectious agents. We aimed to explore association between serum 25‑hydroxyvitamin (25[OH] D) levels and cytokine responses, along with hematological changes, patients urinary tract infection (UTI). Materials Methods: level, cytokines (interferon [IFN]−γ, interleukin [IL]−4, IL−6, IL–10, IL−17A, tumor ...

In order to further understand Epstein-Barr virus (EBV)-lymphocyte interactions, we investigated a chain of events including: (i) EBV binding to human lymphocyte subpopulations; (ii) the earliest appearance of EBV-determined nuclear antigen (EBNA) in the lymphocytes after EBV infection; and (iii) establishment of continuous lymphoblastoid cell lines (LCL) by infecting with EBV different types o...

stem cells from human exfoliated deciduous teeth (shed) have been introduced recently and  possess characteristics similar to  mesenchymal stem  cells (mscs). because of  their convenient accessibility and safety of harvest, shed can be a preferable source for the ever- increasing mscs’ applications. while they are new, their immunoproperties have not been adequately studied. in this study, we ...

The aim of the paper is to investigate effects of long term x-ray exposure on the human lymphocyte, reactive lymphocyte parameters and morphology of lymphocytes in x-ray technicians at Kirkuk hospitals. The study included 54 apparently healthy male x-ray technicians were matched with another 54 apparently healthy control to show any alteration in the lymphocytes, reactive lymphocytes and morpho...

A review of recently published work is presented on the nature of the agglutination of human peripheral lymphocytes and cultured lymphoblastoid cells by the hemolymph agglutinins of two arachnoids, the Horsefoot (Limulus polyphemus), alias Horseshoe Crab, and the Saharan Scorpion (Androctonus australis). Microagglutination techniques were utilized to study the specificity of the whole serum and...

The proportions and absolute numbers of different lymphocyte populations were determined using alkaline phosphatase-labelled reagents in the whole peripheral blood of 22 patients with Crohn's disease. Monoclonal mouse anti-T cell antibody (OKT3) was used to identify T cells, polyvalent F(ab')2 anti-human immunoglobulin for B cells, C3b for C3b-receptor bearing cells, and soluble IgG antibody-an...