Determination of lactic dehydrogenase isoenzymes in precancerous and cancerous gastric mucosa

Mazzarino, C.; Malaponte, G.; Travali, S.; Sanfilippo, G.; Russo, A.

Bollettino della Societa Italiana di Biologia Sperimentale 57(19): 2004-2010

1981


ISSN/ISBN: 0037-8771
PMID: 7317193
Document Number: 180016
We have studied modifications of LDH isoenzymes pattern in normal human gastric mucosa as well as in adenocarcinoma and precancerous lesions of the stomac (gastritis and ulcer); samples from the injured and the surrounding non-injured area were examined, drawing up the isoenzymes, using Tris-buffer pH 7,4 at 4 degrees C and performing the determination within 1 h - because of the high chronolability of the fractions LDH and LDH by cellogol electrophoresis separation. We have always noticed - especially in samples from adenocarcinoma- a shifting toward the M chains, with a clear increase of the fractions LDH4 and LDH5; this has been noticed even in the surrounding non-injured area.

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