Properties of the testicular lactate dehydrogenase isoenzyme
نویسندگان
چکیده
منابع مشابه
Lactate dehydrogenase isoenzyme composition of human platelets.
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 percentag...
متن کاملKinetic properties of rabbit testicular lactate dehydrogenase isozyme.
The additional lactate dehydrogenase isozyme from rabbit testis and sperm, lactate dehydrogenase isozyme-1 (B4) from heart, and lactate dehydrogenase isozyme-5 (A4) from liver have been separated and partially purified by preparative starch gel electrophoresis. Studies performed on these fractions comprised K, and optimum substrate concentration for pyruvate, a-ketobutyrate, and lactate, inhibi...
متن کاملMethod variation in lactate dehydrogenase isoenzyme determination.
Differences between methods for determining lactate dehydrogenase isoenzymes are illustrated, which can account for discrepant results. They should be taken into consideration in the interpretation of test results for the diagnosis of myocardial infarction.
متن کاملDermatomyositis associated with testicular tumour with elevation of serum lactate dehydrogenase (LDH) isoenzyme-1.
Sir, It is well known that dermatomyositis (DM) is frequently associated with internal malignancy (1 ^ 2). Common malignant neoplasms found in association with DM are breast, lung, ovary, stomach and colon. Among such malignancies, testicular tumour appears to be rare and we found only one published case report of this combination (3). We report here a case of DM associated with a testicular tu...
متن کاملTime-related changes in the diagnostic utility of total lactate dehydrogenase, lactate dehydrogenase isoenzyme-1, and two lactate dehydrogenase isoenzyme-1 ratios in serum after myocardial infarction.
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 m...
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ژورنال
عنوان ژورنال: Biochemical Journal
سال: 1976
ISSN: 0264-6021
DOI: 10.1042/bj1530165