Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0019204 (hepatocellular carcinoma)
 71,386 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Rats bearing Reuber H-35 or Novikoff hepatomas and mice bearing L1210 or L5178Y murine leukemias exhibited elevated serum levels of fetuin : N-acetylneuraminic acid transferase (EC 2.4.99.1) activity. The serum transferase activity could be correlated with the growth rate of the tumor; in animals bearing the more rapidly growing Novikoff hepatoma, activity was higher than in animals bearing the Reuber H-35 hepatoma. Higher transferase levels were also found in L1210 leukemic mice than in mice with the slightly slower growing L5178Y leukemia. Serum from rats bearing Reuber H-35 hepatoma and mice bearing L1210 murine leukemia had elevated levels of alpha- and beta-glucosidase (EC 3.2.1.20 and EC 3.2.1.21), alpha- and beta-galactosidase (EC 3.2.1.22 and (3.2.1.23), beta mannosidase (EC 3.2.1.25), alpha- and beta-fucosidase (EC 3.2.1.- and EC 3.2.1.38), beta-N-acetylglucosaminidase (EC 3.2.1.30) and acid phosphatase (EC 3.1.3.2); alpha-mannosidase (EC 3.2.1.24), beta-N-acetylgalactosaminidase (EC 3.2.2.-) and beta-xylosidase (EC 3.2.1.37) were not elevated. In animals bearing Reuber H-35 hepatoma, host liver levels of glycosidases, beta-glucuronidase (EC 3.2.1.31) and acid phosphatase were elevated over both the control and the hepatoma values. The data are interpreted to mean that the tumors or various host tissues release large quantities of enzymes into the serum and that enzyme levels in host organs may also be affected by the tumor.
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PMID:Serum and host liver activities of glycosidases and sialyltransferases in animals bearing transplantable tumors. 17 98

Activities of alpha-L-fucosidase (alpha-Fucase), N-acetyl-beta-D-glucosaminidase (beta-GlcNA-case), N-acetyl-beta-D-galactosaminidase (beta-GalNAcase) and alpha-mannosidase (alpha-Manase) in sera of normal adults, patients with hepatocellular carcinoma (HCC), benign liver diseases and non-liver diseases were determined by microquantitative spectrophotometry. The results showed that the activity of the four serum glycosidases in patients with HCC was significantly higher than that in normal adults. When the maximum 95% confidence limit was used as the positive line, the positivities of alpha-Fucase, beta-GlcNAcase, beta-GalNAcase and alpha-Manase for the diagnosis of HCC were 66.80%, 37.29%, 32.20% and 18.64%, respectively. There was a close relationship among the four glycosidases without being related to serum alpha-fetoprotein (AFP). Some patients with benign liver diseases and non-liver diseases also had elevated glycosidase activity. However, the increase in several glycosidase activities was mainly found in HCC patients. Hepatitis patients with increased activities of more than one glycosidase were always accompanied with elevated SGPT or other abnormal liver functions. Therefore, serum glycosidase spectrum is useful for the diagnosis and differential diagnosis of HCC, especially in AFP negative HCC patients.
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PMID:[Value of serum glycosidase spectrum in the diagnosis of hepatocellular carcinoma]. 131 91