CFTR polymorphisms in patients with alcoholic chronic pancreatitis

Area of Science:

• Genetics
• Gastroenterology
• Alcohol-related diseases

Background:

• Alcohol abuse is a major cause of chronic pancreatitis, but only a subset of individuals develop the condition.
• Genetic factors influencing pancreas susceptibility to alcohol remain largely unknown.
• The Cystic Fibrosis Transmembrane conductance Regulator (CFTR) gene is crucial for exocrine pancreatic function.

Purpose of the Study:

• To investigate the association between CFTR gene polymorphisms and alcoholic chronic pancreatitis.
• To determine if specific CFTR genotypes or haplotypes are more prevalent in patients with alcoholic chronic pancreatitis.

Main Methods:

• A case-control study involving three groups: alcoholic chronic pancreatitis patients (n=68), alcoholics without pancreatic disease (n=68), and healthy non-alcoholic controls (n=104).
• Analysis of polymorphisms in intron 8 of the CFTR gene, including T5/T7 genotype and (TG)10-T7/(TG)11-T7 haplotype frequencies.

Main Results:

• The T5/T7 genotype was significantly more frequent in alcoholic chronic pancreatitis patients (11.8%) compared to alcoholics without pancreatic disease (2.9%).
• No significant difference in T5/T7 genotype frequency was observed between alcoholic chronic pancreatitis patients and healthy controls.
• The (TG)10-T7/(TG)11-T7 haplotype was less frequent in alcoholic chronic pancreatitis patients (7.3%) compared to both alcoholics without pancreatic disease (23.5%) and healthy controls (20.2%).

Conclusions:

• The T5/T7 genotype may represent a genetic risk factor for developing chronic pancreatitis in individuals with a history of chronic alcohol abuse.
• Specific CFTR gene polymorphisms and haplotypes show differential distribution across patient groups, indicating a potential role in alcoholic pancreatitis pathogenesis.