Related Experiment Video
Updated: Apr 8, 2026

Bile Duct Ligation in Mice: Induction of Inflammatory Liver Injury and Fibrosis by Obstructive Cholestasis
Published on: February 10, 2015
The Effect of HLA-DRB1 on Cholecystitis
Tawfik Jasim Mohammad Al-Marzook1, Batool Mutar Mahdi, Hyam Raouf
1Department of Microbiology, Al-Kindy College of Medicine, Baghdad University, Baghdad, Iraq,
Insights
This study found a genetic link between HLA-DRB1*0301 and cholecystitis, a common digestive disease. This specific gene variant appears to increase the risk of developing gallstone gallbladder inflammation.
Area of Science:
- Immunogenetics
- Gastroenterology
- Molecular Epidemiology
Background:
- Cholecystitis is a prevalent digestive disease with known risk factors like obesity and diabetes.
- Understanding genetic predispositions is crucial for disease prevention and management.
Purpose of the Study:
- To investigate the association between Human Leukocyte Antigen - DRB1 (HLA-DRB1) alleles and cholecystitis.
- To identify potential genetic markers for cholecystitis risk.
Main Methods:
- A case-control study involving 40 Iraqi Arab cholecystitis patients and 40 healthy controls.
- DNA typing using Polymerase Chain Reaction - Sequence Specific Oligonucleotide Probes (PCR-SSOP) to identify HLA-DRB1 alleles.
Main Results:
- An increased frequency of the HLA-DRB1*0301 allele was observed in cholecystitis patients compared to controls.
- Statistical analysis indicated a significant association (p=0.0442, OR=4.1111).
Conclusions:
- The HLA-DRB1*0301 allele is potentially associated with cholecystitis in the studied population.
- This finding suggests a genetic component contributing to cholecystitis development.
Background:
Cholecystitis is one of the major digestive diseases. Its prevalence is particularly high in some populations. Significant risk factors associated with cholecystitis include age, sex, obesity, diet, parity and type 2 diabetes.
Objective:
To determine the association between HLA-DRB1 and cholecystitis.
Methods:
This case-control study included forty Iraqi Arab patients who had cholecystitis with multiple calculi treated by cholecystectomy admitted in the surgical ward at Al-Kindy Teaching Hospital Baghdad between September -2013 to June -2014. The control group consisted of forty healthy volunteers among the staff of Al-Kindy College of Medicine. Control and cholecystitis patients groups were typed for identifying the DRB1* alleles using DNA-based methodology (PCR-SSOP).
Results:
There was an increased frequency of HLA-DRB1*0301 in patients with cholecystitis compared with healthy controls (p=0.0442, odd ratio=4.1111, 95% CI: 1.0372-16.2949).
Conclusion:
HLA-DRB1*0301, as a genetic factor, seems to have an association with cholecystitis.
Related Concept Videos
Chronic Bowel Disorders: Introduction
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...
Gastritis-II: Pathophysiology
In acute gastritis, the gastric mucosa becomes swollen and red and undergoes superficial erosion. Superficial ulceration may lead to bleeding.
In chronic gastritis, persistent or repeated insults lead to chronic inflammatory changes and, eventually, thinning or atrophy of the gastric tissue.
Gastritis can stem from various causes, each...
Chronic Pancreatitis I: Introduction
Pancreatitis is the inflammation of the pancreas, which occurs when the immune system becomes active and causes swelling, pain, and disruptions in organ function. Pancreatitis can manifest as either an acute or chronic condition.
Acute pancreatitis arises suddenly and lasts for a brief duration, while chronic pancreatitis is a long-term affliction...

