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FEATURES OF GILBERT'S SYNDROME IN PATIENTS WITH DIFFERENT GENOTYPES UGT1AI
Summary
Gilbert's syndrome patients with homozygous UGT1A1 gene mutations show earlier onset and more severe symptoms, including higher bilirubin levels and connective tissue dysplasia. Heterozygous carriers may also experience varied clinical presentations.
Area of Science:
- Genetics
- Hepatology
- Clinical Medicine
Background:
- Gilbert's syndrome is a common genetic disorder.
- It is characterized by intermittent unconjugated hyperbilirubinemia.
- The UGT1A1 gene plays a crucial role in bilirubin metabolism.
Purpose of the Study:
- To evaluate clinical manifestations and instrumental findings in Gilbert's syndrome patients.
- To investigate the impact of different UGT1A1 genotypes on disease presentation.
- To correlate genotype with clinical severity and associated conditions.
Main Methods:
- Study included 104 patients with Gilbert's syndrome.
- Patients were genotyped for UGT1A1 mutations (rs8175347).
- Categorized into homozygous (7TA*7TA) and heterozygous (6TA*7TA or 6TA*STA) variants.
Main Results:
- Asthenovegetative syndrome was the most frequent manifestation.
- Triggers for jaundice included physical activity, stress, and viral infections.
- Homozygotes presented earlier, with higher bilirubin, more connective tissue dysplasia stigmas, and increased gallstone formation compared to heterozygotes.
Conclusions:
- Patients with asthenic constitution and connective tissue dysplasia should be tested for UGT1A1 mutations.
- Both homozygous and heterozygous UGT1A1 mutation carriers may require individualized management strategies.
- Genotype influences clinical phenotype and necessitates tailored lifestyle and medication adjustments.