title: Serum lactate dehydrogenase isoenzyme pattern in non-Hodgkin's lymphomas.
abstract: Serum lactate dehydrogenase (S-LDH) and its isoenzyme pattern were assayed in 63 non-Hodgkin's lymphoma (NHL) patients, 37 at diagnosis, 15 at relapse and 11 in complete remission (CR). S-LDH in NHL patients with active disease was higher than in normal subjects and CR patients (p less than 0.001). Among the isoenzymes, LDH-2 and LDH-5 showed no remarked differences; LDH-1 was reduced and LDH-3 and LDH-4 raised in comparison to the normal group (p less than 0.001). S-LDH levels and isoenzymes 1 and 4 were influenced by the stage, the histological subgroup and by the presence of general symptoms. In fact, cases in stage IV, with "high-grade malignancy" and with general symptoms, had higher S-LDH levels and more evident LDH-1 and LDH-4 changes than the other stages, the other histopathological subgroups and the cases classified as "A". S-LDH was the same as in normal subjects in the "low-grade" and "intermediate-grade" malignancies as was LDH-1 in stage II and LDH-4 in stages II and III, in "low-grade" malignancy and in the A cases. In contrast, LDH-3 was always high, with no significant difference in relation to the variables considered. Thus, in NHL, LDH-3 seems to be a reliable marker of the presence of the disease in any case, whereas S-LDH is more related to the spread of the lymphoma.
authors.affiliation: Institute of Medical Semeiology, Università Cattolica del Sacro Cuore, Rome, Italy.
authors.forename: B M
authors.initials: BM
authors.lastname: Ricerca
authors.forename: S
authors.initials: S
authors.lastname: Storti
authors.forename: S
authors.initials: S
authors.lastname: Campisi
authors.forename: L
authors.initials: L
authors.lastname: Pagano
authors.forename: F
authors.initials: F
authors.lastname: Dalla Torre
authors.forename: R
authors.initials: R
authors.lastname: Marra
authors.forename: A
authors.initials: A
authors.lastname: Amato
authors.forename: G
authors.initials: G
authors.lastname: Mango
authors.forename: B
authors.initials: B
authors.lastname: Bizzi
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006689:Hodgkin Disease / Q000201:enzymology* / Q000473:pathology; D006801:Humans; D007527:Isoenzymes; D007770:L-Lactate Dehydrogenase / Q000097:blood*; D008228:Lymphoma, Non-Hodgkin / Q000201:enzymology* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000201:enzymology; D009367:Neoplasm Staging; D011379:Prognosis
chemical_list: D007527:Isoenzymes; D007770:L-Lactate Dehydrogenase