Lifestyle
- Reduce alcohol intake
- Maintain a healthy weight
- Engage in regular physical activity
Gamma-Glutamyltransferase · Gamma-GT · GGT
GGT quantifies the activity of the gamma-glutamyltransferase enzyme, which is involved in amino acid transfer and glutathione metabolism.
Reference ranges can vary slightly by laboratory; sex-specific differences exist.
Gamma-Glutamyltransferase (GGT) is an enzyme that plays a crucial role in the gamma-glutamyl cycle, which is involved in the metabolism of glutathione and the transfer of amino acids across the cellular membrane. It is predominantly found in the liver, kidney, and pancreas. Clinically, GGT is an important biomarker for liver function, particularly in diagnosing and monitoring liver diseases such as alcoholic liver disease, non-alcoholic fatty liver disease, and bile duct obstructions. Elevated GGT levels are often associated with liver damage or bile duct issues, and it is commonly used alongside other liver enzymes to assess liver health. In the context of athletic performance and biohacking, GGT may be monitored to ensure liver health, as liver function is critical for detoxification and metabolic processes that can impact overall performance and recovery. However, GGT levels can be influenced by various factors, including alcohol consumption, medications, and metabolic conditions, which may confound its interpretation. It is important to consider these factors when evaluating GGT levels, and fasting or time-of-day variations are generally not significant for this marker.
Klinische Bedeutung
Elevated GGT levels indicate potential liver dysfunction, bile duct obstruction, or alcohol abuse. Lower levels are generally not clinically significant but may indicate reduced liver enzyme activity.
Progressively rising GGT values suggest worsening liver function or increased alcohol intake. Re-test in 4-6 weeks if elevated.
Falling GGT values indicate improvement in liver function or reduction in alcohol consumption.
Re-test Interval
4 weeks if outside optimal range
Note:
Consult a healthcare provider before making significant lifestyle changes, especially if liver disease is suspected.
GGT levels may vary with diurnal rhythms; consistency in testing time is recommended.
Testing Frequency
Annually for healthy adults, more frequently if monitoring liver disease.
Correlated with
Current research suggests that reference intervals for GGT may need reevaluation, particularly considering confounding factors like gender, age, and obesity. Researchers have not yet established optimal GGT thresholds for predicting outcomes in various populations, such as those with transthyretin cardiac amyloidosis. Additionally, clinical questions remain unanswered regarding the specific mechanisms by which GGT elevation correlates with disease severity and mortality across different liver and cardiac conditions.
1,073
Total Citations
7
Human/RCT
4.7
Avg. Influence
2018
Latest
Researchers found that elevated GGT levels are linked to increased risks of various diseases, including cardiovascular disease and diabetes. The study suggests GGT as a predictive marker for multiple health risks beyond liver disease.
Researchers found that serum gamma-glutamyltransferase (GGT) is a valuable biomarker for diagnosing alcohol use disorders. The study highlights the need for improved diagnostic methods combining GGT with other tests to better identify early alcohol abuse.
This review examined the use of various alcohol biomarkers, including GGT, in clinical and forensic settings. Researchers observed that GGT, along with carbohydrate-deficient transferrin (CDT), can effectively indicate alcohol consumption and assist in treatment motivation.
This overview highlighted the dual role of gamma-glutamyltransferase (GGT) as both an antioxidant and a potential prooxidant. Researchers observed that GGT may contribute to the pathogenesis of several diseases, including cardiovascular conditions and cancer.
This study proposed that GGT could serve as a promising biomarker for cardiovascular risk. Researchers observed that GGT levels may indicate atherogenesis and could help identify individuals at high risk for cardiovascular events.
This systematic review assessed the prognostic role of serum gamma-glutamyltransferase (GGT) in patients with genitourinary cancers. Researchers found that elevated GGT levels are associated with an increased risk of cancer progression and poor prognosis, highlighting its potential as a biomarker for monitoring these patients.
This study examined the role of liver enzymes, including gamma-glutamyl transferase (GGT), in diagnosing liver and biliary diseases in horses. Researchers found that GGT levels indicate acute liver or biliary disease, with specific patterns of enzyme changes associated with different liver pathologies.
Researchers examined the association between gamma-glutamyltransferase (GGT) levels and body fat distribution in healthy individuals. They found that increased GGT was linked to higher android fat and a higher android/gynoid fat ratio, indicating its potential as an early biomarker for unfavorable body fat distribution.
This clinical study examined the relationship between gamma-glutamyltransferase (GGT) levels and COVID-19 in hospitalized patients. Researchers found that 32.7% of patients had elevated GGT levels, which were associated with longer hospital stays and other elevated biomarkers. The study suggests liver involvement in COVID-19 cases.
This study investigated the effects of lamivudine on liver health in rats, finding that GGT levels significantly increased with higher doses. Researchers observed that lamivudine toxicity is linked to oxidative stress in the liver.
Research publications about GGT over time
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