Biological and pathological factors affecting plasma gamma-glutamyl transpeptidase and alkaline phosphatase activity in the elderly

1985 ◽  
Vol 146 (1) ◽  
pp. 1-10 ◽  
Author(s):  
Yvan Touitou ◽  
Jacques Proust ◽  
Evelyne Klinger ◽  
Jean-Pierre Nakache
2020 ◽  
Vol 14 (1) ◽  
pp. 20-24
Author(s):  
Hussein SH. Ridha ◽  
Zahraa H.M. Kadri

Objective: The present study aimed to assess of four liver enzymes, Alanine Aminotransferase (ALT), Aspartate Transaminase (AST), Alkaline Phosphatase (ALP) and Gamma-Glutamyl Transpeptidase (GGT). Material and Methods: Based on periodontal clinical parameters, sixty four patients with chronic periodontitis (CP) and twenty four controls were enrolled in the study. Saliva and serum samples were collected and Automated Chemistry Analyzer AU 480 was employed to assess levels of enzymes. Results: Compared to healthy controls, the levels of the four enzymes were significant increased in serum of patients, especially in the severe group while in the saliva a significant increase observed only in the level of AST. Moreover, Alanine Aminotransferase (ALT), Aspartate Transaminase (AST), Alkaline Phosphatase (ALP) and Gamma-Glutamyl Transpeptidase (GGT) the levels of these enzymes in serum were significantly higher than those in saliva. Conclusion: ALT, AST, ALP and GGT serum levels are suggested to be important indicators for disease progression as well as predict the liver health.  


1983 ◽  
Vol 29 (5) ◽  
pp. 751-761 ◽  
Author(s):  
N W Tietz ◽  
C A Burtis ◽  
P Duncan ◽  
K Ervin ◽  
C J Petitclerc ◽  
...  

Abstract We present an official AACC reference method for the measurement of alkaline phosphatase, the culmination of optimization experiments conducted by a group of independent laboratories. The details of this method and evaluation of factors affecting the measurement are described. A metal ion buffer has been incorporated that maintains optimal and constant concentrations of zinc(II) and magnesium(II) ions. Final reaction conditions are: pH (30 degrees C), 10.40 +/- 0.05; 2-amino-2-methyl-1-propanol buffer, 0.35 mol/L; 4-nitrophenyl phosphate, 16.0 mmol/L; magnesium acetate, 2.0 mmol/L; zinc sulfate, 1.0 mmol/L; and N-(2-hydroxyethyl)ethylenediaminetriacetic acid, 2.0 mmol/L.


2000 ◽  
Vol 30 (3) ◽  
pp. 259-263 ◽  
Author(s):  
Thierry Sapey ◽  
Michel-Henry Mendler ◽  
Dominique Guyader ◽  
Olivia Morio ◽  
Stéphane Corbinais ◽  
...  

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