Are transmembrane 6 superfamily member 2 gene polymorphisms associated with steatohepatitis after pancreaticoduodenectomy?
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View abstract on PubMed
Summary
This summary is machine-generated.The TM6SF2 gene variant, not PNPLA3, is linked to liver issues after pancreaticoduodenectomy. This suggests TM6SF2 minor allele may influence steatohepatitis development post-surgery.
Area Of Science
- Hepatology
- Gastroenterology
- Surgical Oncology
Background
- Pancreaticoduodenectomy, a major surgery, is associated with a 20-40% incidence of post-operative steatotic liver disease (SLD).
- The roles of patatin-like phospholipase domain-containing 3 protein (PNPLA3) and transmembrane 6 superfamily member 2 (TM6SF2) gene polymorphisms in SLD and steatohepatitis are known, but their specific impact after pancreaticoduodenectomy remains unclear.
Purpose Of The Study
- To investigate the association between PNPLA3 and TM6SF2 gene polymorphisms and the development of SLD and high hepatic fibrosis index (HFI) after pancreaticoduodenectomy.
- To determine if specific genetic variants influence the risk of liver disease progression post-surgery.
Main Methods
- A cohort of 43 patients undergoing pancreaticoduodenectomy for pancreatic cancer was analyzed.
- DNA was extracted from non-cancerous liver tissue to genotype PNPLA3 and TM6SF2 polymorphisms using real-time PCR.
- SLD was diagnosed via CT scan, and high HFI was defined using established fibrosis scoring systems (FIB-4 and NAFLD fibrosis score).
Main Results
- No significant difference in SLD or high HFI incidence was observed between PNPLA3 genotype groups.
- Patients with the TM6SF2 minor allele showed a significantly higher cumulative incidence of high HFI at one year post-pancreaticoduodenectomy compared to the major homozygous group (P=0.046).
Conclusions
- The TM6SF2 minor allele, but not PNPLA3, appears to be a significant risk factor for developing high hepatic fibrosis index after pancreaticoduodenectomy.
- These findings suggest TM6SF2 genetic variations may play a crucial role in the pathogenesis of post-surgical liver disease, specifically steatohepatitis.
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