1. Opposite associations between alanine aminotransferase and γ-glutamyl transferase levels and all-cause mortality in type 2 diabetes: Analysis of the Fenofibrate Intervention and Event Lowering in Diabetes (FIELD) study.
- Author
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Williams KH, Sullivan DR, Nicholson GC, George J, Jenkins AJ, Januszewski AS, Gebski VJ, Manning P, Tan YM, Donoghoe MW, Ehnholm C, Young S, O'Brien R, Buizen L, Twigg SM, and Keech AC
- Subjects
- Aged, Alanine Transaminase blood, Australia epidemiology, Biomarkers blood, Cardiovascular Diseases complications, Cardiovascular Diseases epidemiology, Diabetes Mellitus, Type 2 blood, Diabetes Mellitus, Type 2 mortality, Diabetes Mellitus, Type 2 physiopathology, Diabetic Angiopathies complications, Diabetic Angiopathies epidemiology, Diabetic Cardiomyopathies complications, Diabetic Cardiomyopathies epidemiology, Diabetic Cardiomyopathies prevention & control, Double-Blind Method, Female, Finland epidemiology, Humans, Liver physiopathology, Male, Middle Aged, Mortality, New Zealand epidemiology, Non-alcoholic Fatty Liver Disease complications, Non-alcoholic Fatty Liver Disease epidemiology, Prevalence, gamma-Glutamyltransferase blood, Cardiovascular Diseases prevention & control, Diabetes Mellitus, Type 2 complications, Diabetic Angiopathies prevention & control, Fenofibrate therapeutic use, Hypolipidemic Agents therapeutic use, Liver drug effects, Non-alcoholic Fatty Liver Disease prevention & control
- Abstract
Aims: Reported associations between liver enzymes and mortality may not hold true in type 2 diabetes, owing to a high prevalence of non-alcoholic fatty liver disease, which has been linked to cardiovascular disease and mortality in its own right. Our study aimed to determine whether alanine aminotransferase (ALT) or γ-glutamyl transferase (GGT) levels predict mortality in type 2 diabetes, and to examine possible mechanisms., Methods: Data from the Fenofibrate Intervention and Event Lowering in Diabetes (FIELD) study were analyzed to examine the relationship between liver enzymes and all-cause and cause-specific mortality over 5years., Results: Over 5years, 679 (6.9%) individuals died. After adjustment, for every standard deviation increase in ALT (13.2U/L), the HR for death on study was 0.85 (95% CI 0.78-0.93), p<0.001. Conversely, GGT >70U/L, compared with GGT ≤70U/L, had HR 1.82 (1.48-2.24), p<0.001. For cause-specific mortality, lower ALT was associated with a higher risk of cardiovascular death only, whereas GGT >70U/L was associated with higher risks of death due to cardiovascular disease, cancer and non-cancer/non-cardiovascular causes. The relationship for ALT persisted after adjustment for indirect measures of frailty but was attenuated by elevated hsCRP., Conclusions: As in the general population, ALT has a negative, and GGT a positive, correlation with mortality in type 2 diabetes when ALT is less than two times the upper limit of normal. The relationship for ALT appears specific for death due to cardiovascular disease. Links of low ALT with frailty, as a potential mechanism for relationships seen, were neither supported nor conclusively refuted by our analysis and other factors are also likely to be important in those with type 2 diabetes., (Copyright © 2016 Elsevier Inc. All rights reserved.)
- Published
- 2016
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