alexa Platelet Activation in Stored Platelet Concentrates: Comparision of Two Methods Preparation
ISSN: 2155-9864

Journal of Blood Disorders & Transfusion
Open Access

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Research Article

Platelet Activation in Stored Platelet Concentrates: Comparision of Two Methods Preparation

Soleimany Ferizhandy Ali*

Iranian blood transfusion organization-research center, hemmat Exp way, P.O.Box:14665-1157, Tehran, Iran

*Corresponding Author:
Dr. Soleimany ferizhandy Ali
Iranian Blood transfusion Organization-Research Center
Hemmat Exp Way
P.O.Box: 14665-1157,Tehran, Iran
Tel: 009888601559
Fax: 009888601559
E-mail: [email protected]

Received date: May 02, 2011; Accepted date: June 15, 2011; Published date: June 28, 2011

Citation: Ali SF(2011) Platelet Activation in Stored Platelet Concentrates: Comparision of Two Methods Preparation. J Blood Disord Transfus 2:107. doi: 10.4172/2155-9864.1000107

Copyright: © 2011 Ali SF. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Background and Objectives: This study has determined in vitro quality of 5 days stored platelet concentrates prepared by two different methods. Preparation conditions of platelet may cause platelet activation, which contributes to decreased ability of stored platelet to function. The quality platelets concentrate plays an important role in transfusion therapy. Their quality was assessed using the following parameters: platelets, leukocytes and erythrocytes counts, pH, P-selcetin (CD62P) and Annexin V.P-selectin and Annexin V can be detected on the activated platelet. Annexin V was used as a parameter for quality monitoring of platelet concentrates during storage. The present paper compares quality properties of both platelet preparations in vitro.

Methods and Materials: In this experimental study, 30 platelet concentrates prepared with platelet rich plasmaplatelet concentrates and 30 units via buffy coat-derived platelet concentrate methods. The percentages of Annexin V, P-selcetin expression, platelet, leukocytes and erythrocytes counts and pH were evaluated.

Results: During storage for up to 5 days, buffy coat-derived platelet concentrates units displayed, no significant pH, difference in comparison with platelet rich plasma- platelet concentrates preparation (p>0.05). The mean leukocytes count buffy coat-derived platelet concentrates and platelet rich plasma- platelet concentrates was comparable and statistically significant difference was observed (p<0.05). During storage for up to 5days platelet rich plasma- platelet concentrates units displayed significant an increase in the CD62P, Annexin V expressions, as compared with buffy coat-derived platelet concentrates preparation on day 5 (p<0.05).

Conclusions: The kinetics of CD62P and annexin V levels are influenced by the method used to prepare platelets for storage. The different levels of CD62P and annexin V in buffy coat-derived platelet concentrates and platelet rich plasma- platelet concentrates clearly demonstrating a progressive activation process of platelet rich plasma- platelet concentrates exceeds that of buffy coat-derived platelet concentrates.

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