background: the present study evaluated treatment outcomes and the treatment indexes among glanzmann’s patients in mofid children’s hospital, tehran, iran. patients and methods: a retrospective cross-sectional study was performed to evaluate the treatment protocols on 15 glanzmann’s patients with bleeding therapeutic records in mofid children’s hospital, tehran, iran, from 2006 to 2011. results...

Background: The changes of platelet parameters can be a useful index for rapid diagnosis of urinary tract infection (UTI), since platelet changes are routinely determined through complete blood count (CBC) test. The correlation between platelet indices, included number (PLTs), mean platelet volume (MPV) and platelet distribution width (PDW), which are the indicators of production and function o...

Background: Stroke is known to be the third most prominent cause of death in the developing countries and the most common debilitating neurologic disease. This study aimed to investigate the association of platelet count (PC) and mean platelet volume (MPV) index with various stroke types. Methods: This cross-sectional study was carried out on patients over the age of 18 years who presented wit...

Data Synthesis: 172 studies evaluated diagnostic accuracy. For identifying clinically significant fibrosis, the platelet count, age– platelet index, aspartate aminotransferase–platelet ratio index (APRI), FibroIndex, FibroTest, and Forns index had median positive likelihood ratios of 5 to 10 at commonly used cutoffs and areas under the receiver-operating characteristic curve (AUROCs) of 0.70 or...

introduction intra-articular injections of platelet rich plasma (prp) for the treatment of knee osteoarthritis have been shown to reduce pain and improve joint function. the aim of this study is to examine the joint function by adding intra-articular growth hormone to platelet rich plasma. this study was performed on the individuals with knee osteoarthritis and under ultrasound guidance. conclu...

preparations of platelet concentrates (pcs) that are stored under blood bank conditions and used for transfusion purposes, appear to be enriched in platelet derived-microparticles (pmps) with high coagulant activity that may change platelet efficacy and safety issues. high shear stress could cause shedding of pmps from the platelet plasma membrane, platelet aggregation, and activation of the co...

Platelet aggregation velocity was moosured with an aggregometer in plateletrich plasma from 34 normal subjects following addition of ADP, collagen, or epinephrine. Platelet volume parameters [mean, mode, megathrombocyte index (large platelets)] were determined with a model B Coulter Counter attached to a P64 Channel Analyzer with electronic recorder and correlated with platelet count. A negativ...

Platelet activation in blood flow under high, overcritical shear rates is initiated by Von Willebrand factor. Despite the large amount of experimental data that have been obtained, the value of the critical shear rate, above which von Willebrand factor starts to activate platelets, is still controversial. Here, we recommend a theoretical approach to elucidate how the critical blood shear rate i...