We describe the synthesis of monodispersed, silica encapsulated conjugated polymer nanoparticles, their colour tunability and use in imaging HeLa cells.

The immune system of 90-day old piglets SM-1 Novosibirsk breed depends on sex and stress-reactivity. Stress-reactivity was measured using halothane test. immunologic testing performed 30 days after weaning. Our results show that overall piglet demonstrated high proliferative activity T- B- immunocompetent cells with active formation mature T-and B-lymphocytes did not signs immunosuppression. Co...

It has been reported that several conifers possess cytotoxic activities on some human tumor cell lines. Taxol as a natural cytotoxic compound has been extracted from this family. In a program to screen the cytotoxic effects of natural resources, male and female branchlets, fruit or bark of two different species of Iranian conifers were collected, identified and the cytotoxic effects of their hy...

Background: Iron is an essential trace element in cell proliferation. Several investigations demonstrate that iron deprivation inhibits cell proliferation. However, the impact of iron on telomerase activity of activated lymphocytes remains unexplained to date. Objective: In this study, the effect of iron on the proliferation and telomerase activity of lymphocytes stimulated by phytohemagglutini...

 Abstract Background: To produce a reliable probe suitable for aneuploidy detection of chromosome 13 on uncultured lymphocytes and amniocytes by fluorescence in situ hybridization (FISH), we used a contig of three overlapping cosmids mapped to 13q12.3. Methods: The cosmid DNA carrying the expected sequences of human chromosome 13 was isolated from host cells and labelled with biotin-11-dUTP. Th...

background: activated platelets shed microparticles (mps) in vivo and certainly in vitro under storage. like platelets, platelet-derived mps contribute to hemostatic and inflammatory responses. we sought to determine the interactions between platelet mps and peripheral b lymphocytes in the healthy blood circulation to propose a possible role for platelet mps in the functioning of b cells.   mat...

introduction: the aim of this study was to determine a proper cell line for adherance of helicobacter pylori and a suitable method for attachment of this bacteria to cell lines in vitro. material and methods: a total of 22 h.pylori strains,isolated from the antral biopsies of 49 patients with dyspepsia,gastritis,gastric ulcer,duodenal ulcer, etc., were evaluated by elisa(upr)to determine the di...

Human T-cell lymphotropic virus type 1 (HTLV-1) is associated with adult T-cell leukemia/lymphoma (ATL) and HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP). Only a limited percentage of infected individuals develop disease in response to the virus while the majority remain asymptomatic and HAM/TSP is the most common clinical manifestation of the virus. HAM/TSP is an inflamma...