Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1993-1-14
pubmed:abstractText
The present study examined biochemical storage lesions in 58 buffy coats (BCs) intended as the raw material for platelet concentrates. The work was conducted in three series; the aims were to investigate: (a) the storage quality of BCs obtained from the routine production (series I), (b) whether improvement in platelet quality could be achieved by continuous agitation during storage (series II), and (c) whether macroscopic aggregate formation indicates platelet damage (series III). Series I and II consisted of 20 BCs each. Series III compared ten BCs with visible clumping with eight BCs not demonstrating macroscopic aggregates. In series I and II platelet counts and platelet factor 4 (PF4) release were determined after 1, 3, 5, and 24 h; lactate dehydrogenase (LDH) extracellular activity was measured after 1 and 24 h. In addition, in series I elastase concentrations were analyzed after 3, 5, and 24 h. Finally, in series III extracellular beta-thromboglobulin (beta-TG) levels were determined after 18-24 h. Low platelet counts, most likely reflecting the presence of aggregate formation, were found in 20% of the BCs (series I); in this series a total of 25% demonstrated increasing platelet counts, together with elevated PF4 and elastase, over the study period. Significant biochemical storage lesions were found after 5 and 24 h of storage. The study also demonstrated that continuous agitation during storage does not improve platelet quality (series II) and that BCs demonstrating visible clumping (series III) had augmented levels of extracellular beta-TG (p < 0.001).(ABSTRACT TRUNCATED AT 250 WORDS)
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0939-5555
pubmed:author
pubmed:issnType
Print
pubmed:volume
65
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
269-73
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Some storage characteristics of buffy coats used for preparation of platelet concentrates.
pubmed:affiliation
Department of Transfusion Medicine, Orebro Medical Center Hospital, Sweden.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't