title: Lactate dehydrogenase isoenzyme levels in collagen disease.
abstract: Serum lactate dehydrogenase (LDH) isoenzymes were determined in 27 patients with collagen disease and 88 normal subjects. The mean value for LDH-3 isoenzyme was 20.4 +/- 3% in normal controls, 31.47 +/- 8.9% in patients with collagen disease who showed activity of the disease, and 20 +/- 3.74% in patients in complete remission. Six patients who had positive rheumatoid factor showed higher LDH-3 levels. There was also some correlation between the activity of the disease and serum LDH-3 level in patients with connective tissue disorders.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D004796:Clinical Enzyme Tests; D003095:Collagen Diseases / Q000175:diagnosis / Q000201:enzymology*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007527:Isoenzymes; D007770:L-Lactate Dehydrogenase / Q000097:blood*; D008297:Male; D008875:Middle Aged; D012075:Remission, Spontaneous
chemical_list: D007527:Isoenzymes; D007770:L-Lactate Dehydrogenase