Gamma-glutamyltransferases in bile and sera from patients with extrahepatic biliary obstruction

Clinica Chimica Acta; International Journal of Clinical Chemistry
P R WenhamA F Smith

Abstract

Gamma-glutamyltransferase has been studied in bile and sera from patients with extrahepatic biliary obstruction. In both fluids gamma-glutamyltransferase activity is found largely in the high molecular mass fraction present in the void volume following G200 gel chromatography and which remains at the origin after 7% polyacrylamide gel electrophoresis. When bile, sera and liver microsomes are treated with deoxycholate, a different form of gamma-glutamyltransferase, with an approximate molecular mass of 157 000 estimated by gel chromatography and of 125 000 by gradient gel electrophoresis, is obtained. After treatment with papain, all three types of specimen gave rise to a form of gamma-glutamyltransferase with a molecular mass of 115 000 estimated by gel chromatography and of 98 000 by gradient gel electrophoresis. The possible relationship between these various forms of gamma-glutamyltransferase, and their relevance to the increases in activity in serum seen in extrahepatic biliary obstruction, are discussed.

References

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Citations

Sep 1, 1982·Clinica Chimica Acta; International Journal of Clinical Chemistry·N E Huseby
Sep 30, 1982·Clinica Chimica Acta; International Journal of Clinical Chemistry·P R WenhamA F Smith
Aug 31, 1984·Clinica Chimica Acta; International Journal of Clinical Chemistry·P R WenhamA F Smith
Nov 15, 1986·Clinica Chimica Acta; International Journal of Clinical Chemistry·P R WenhamA F Smith
Aug 1, 1987·European Journal of Clinical Investigation·R TeschkeM Nishimura

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