title: Lactate dehydrogenase isoenzyme composition of human platelets.
abstract: The LDH isoenzyme composition of 12 platelet preparations was determined by electrophoresis. The mean (+/- SD) percentages of LDH-1, LDH-2, LDH-3, LDH-4, and LDH-5 were 16.6 +/- 1.7, 30.1 +/- 1.0, 34.2 +/- 1.3, 18.2 +/- 1.3, and 0.9 +/- 1.1, respectively. In comparison with previous data, these data show identical ranking of the prevalence of each isoenzyme but significantly different percentages, particularly of LDH-1 and LDH-4. The release of platelet LDH by freezing and thawing differed little from that by homogenization.
authors.affiliation: Department of Pathology, University of California, Irvine Medical Center, Orange 92668.
authors.forename: D S
authors.initials: DS
authors.lastname: Miyada
authors.forename: A
authors.initials: A
authors.lastname: Fagin
authors.forename: H
authors.initials: H
authors.lastname: Pirkle
authors.forename: J
authors.initials: J
authors.lastname: Ocariz
authors.forename: N D
authors.initials: ND
authors.lastname: Vaziri
mesh_terms: D001792:Blood Platelets / Q000201:enzymology*; D004586:Electrophoresis / Q000379:methods; D006801:Humans; D007527:Isoenzymes; D007770:L-Lactate Dehydrogenase / Q000097:blood*; D013696:Temperature
chemical_list: D007527:Isoenzymes; D007770:L-Lactate Dehydrogenase