this article reviews will focus on the concept and formation of micro particles (mps) in circulation and their role in transfusion medicine and immune system. mps are cell membrane derived vesicles which express markers of their parent cells and are found in circulation at low levels. exact functions of mps are unclear. in here, physiological almost all types of circulating mps including platel...

transfusion of blood products from an infected person with aids, is meant to infect recipient. blood products such as whole blood, red blood cells, platelets, plasma, frozen blood precipitate, factor viii, factor ix, can be infected with hiv. transmissions from blood factors can be seen in plasma from thousands of donors that were collected in a container and were used to treat hemophilia. bloo...

  I read with interest Dr. Yazdani's reply about the article entitled “administration of magnesium sulfate to women with premature labor: The effect on bleeding time”.1 In my review of hematology references, I could not find any reference for determining hemoglobin (Hb) sooner than 24 hrs and Dr. Yazdani had not cited any reference either. However, about the influence of Hb on homeostasis, ther...

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...

When blood comes in contact with dialyzer membranes, the interfacial bioactivation reactions occurring at blood/membrane boundaries affect gross mechanisms related to thrombogenicity. In presence of biocompatible polymers, adhesion and subsequent interactions platelets, as well other serum components (e.g., proteins), are altered delay thrombus formation.

The problem of the histogenesis of blood platelets has been attacked from many points of view, but none of the theories advanced seems t'o be wholly satisfactory. Among the causes which have contributed to this confusion is the failure to recognize the unity in character of all blood platelets, and, until recently, the inability to reproduce the structural and tinctorial characteristics of bloo...