Effect of hypoxia on the lactate dehydrogenase isoenzyme composition in the rat carotid body

1974 ◽  
Vol 78 (3) ◽  
pp. 1005-1006 ◽  
Author(s):  
N. V. Petrova
1989 ◽  
Vol 35 (12) ◽  
pp. 2325-2326 ◽  
Author(s):  
D S Miyada ◽  
A Fagin ◽  
H Pirkle ◽  
J Ocariz ◽  
N D Vaziri

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.


2014 ◽  
Vol 83 (3) ◽  
pp. 216-230 ◽  
Author(s):  
Tetyana Duka ◽  
Sarah M. Anderson ◽  
Zachary Collins ◽  
Mary Ann Raghanti ◽  
John J. Ely ◽  
...  

2001 ◽  
Vol 40 (4) ◽  
pp. 536-540 ◽  
Author(s):  
Finn Edler von Eyben ◽  
Ebbe Lindegaard Madsen ◽  
Ole Blaabjerg ◽  
Per Hyltoft Petersen ◽  
Hans von der Maase ◽  
...  

1971 ◽  
Vol 17 (9) ◽  
pp. 882-885 ◽  
Author(s):  
T Lubrano ◽  
A A Dietz ◽  
H M Rubinstein

Abstract In a study of lactate dehydrogenase isoenzyme patterns in the sera of patients with severe liver disease, who were primarily selected because of an abnormally high serum bilirubin, 42 of 76 patients had an additional band (LDH-T) between isoenzymes 4 and 5 on acrylamide gel. Thirty of the 42 patients died during followup, 24 within a month of recognition of the extra band.


1990 ◽  
Vol 36 (7) ◽  
pp. 1317-1322 ◽  
Author(s):  
L V Galbraith ◽  
F Y Leung ◽  
G Jablonsky ◽  
A R Henderson

Abstract Using receiver-operating characteristic (ROC) curve and likelihood ratio analysis, we examined the diagnostic utility of total lactate dehydrogenase (LD; EC 1.1.1.27) activity (I). LD isoenzyme-1 activity (II), and the LD-1 percentage of total LD activity (III), LD-1 LD-2 (IV), and LD-1/LD-4 (V) in 347 persons admitted to the Cardiac Care Unit (of whom 173 were subsequently proven to have had myocardial infarction). Blood was sampled from these subjects at about 6-h intervals for up to 96 h from the onset of chest pain. Defining an "effective" test as one having an area under the ROC curve of greater than or equal to 0.9, we determined the ranked utility (greatest to least) of these tests as V = IV greater than III greater than II greater than I. Tests III, IV, and V had by this criterion, diagnostic effectiveness equivalent to measurements of creatine kinase-2 in serum but in samples obtained at later time intervals. The decision thresholds for both high (constant) test sensitivity and specificity varied with time, to differing extents, over the entire 96-h period, a finding with important diagnostic implications. We document positive and negative likelihood ratio values for each of these tests throughout the entire period of study.


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