Cells secrete various membrane-enclosed microvesicles from their cell surface (shedding microvesicles) and from internal, endosome-derived membranes (exosomes). Intriguingly, these vesicles have many characteristics in common with enveloped viruses, including biophysical properties, biogenesis, and uptake by cells. Recent discoveries describing the microvesicle-mediated intercellular transfer o...

Background: In the past decade, childlessness has become a most important problem in the world. At the same time evidence confirms a link between sexually transmitted diseases (STDs) and infertility problem. Some of viral STDs are: HIV, HPV, HSVand so on. The innate immune system is essential for the initial detection of invading viruses and subsequent activation of adaptive immunity. also, The...

July 2006 | Volume 3 | Issue 7 | e242 The Need for New Antiviral Therapies Viruses are formidable targets for drug development. As obligate intracellular parasites that take over the host cellular machinery to further their own agenda, they seem to understand the intimate workings of cellular pathways better than those seeking to develop treatments against them. It is diffi cult to inactivate a...

Certain steroids have been reported to enhance experimental viral infections, whereas others have little or no effect. Interference with the interferon system has been suggested as a possible mechanism for the viral infection-enhancing (VIE) activity of hormones. In the present study, steroids (prednisolone, progesterone, testosterone) which had no effect on MM virus infection demonstrated VIE ...

Study objective: To define the epidemiology, clinical manifestations, and long-term complications of respiratory viral infections in adult lung transplant recipients. Design: Retrospective review of the records of 122 adult lung transplant recipients over a 5-year period at one institution. Results: Ten episodes of infection with respiratory syncytial virus, parainfluenza, influenza, or adenovi...

background and objective: cytomegalovirus (cmv) infections are associated with severe morbidity and mortality in patients, especially pediatric renal transplantation patients. the use of immunosuppressive agents places these patients at the risk of viral infections. as cytomegalovirus infection influences the graft outcome, adopting useful strategies for limiting this virus after transplantatio...