Assessment of the Different Etiological and Susceptibility Markers in Patients With Pancreatitis: Investigating IG4, Cytomegalovirus, Coxsackie- Virus, Genetic Polymorphism of Vitamin D Receptor Gene
Study Details
Study Description
Brief Summary
Acute pancreatitis (AP) is a multifactorial disease. AP represents a significant number of hospital admissions. Most of the patients are admitted in an acute setting. Early identification of its etiology is an essential step toward the rational approach, both for its implications in the immediate therapy and the prevention of recurrence. Although often obvious, the etiological workup of acute pancreatitis can be challenging.
Condition or Disease | Intervention/Treatment | Phase |
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Detailed Description
Acute pancreatitis is the most common pancreatic disorder. Although acute pancreatitis is a benign disease, it often progresses to a serious state, and mortality is still high. Autoimmune pancreatitis (AIP) was first used to describe cases of pancreatitis with narrowing of the pancreatic duct, enlargement of the pancreas, hyper-γ-globulinaemia, and antinuclear antibody (ANA) positivity serologically by indirect immunofluorescence (IIF). The main differential diagnosis is pancreatic cancer, which can be ruled out through radiological, serological, and histological investigations.
Cytomegalovirus (CMV) is a common viral pathogen in humans. It is a lytic virus that causes a cytopathic effect in vitro and in vivo. Seroprevalence for CMV worldwide ranges from 60%-100% but the severity of illness varies. Primary CMV may be asymptomatic or may cause a mild and self-limiting mononucleosis-like syndrome. The self-limiting course of CMV infection typically includes fever, malaise, splenomegaly, mild hepatomegaly, small increases in serum transaminase activity, and variable elevation of serum alkaline phosphatase. CMV infection can cause severe hepatitis, meningitis, encephalitis, myelitis, colitis, pancreatitis and pneumonitis. Coxsackie-B virus can also cause acute pancreatitis.
VDR are also expressed on pancreatic Ɓ cells, and may play an essential role in maintaining normal insulin levels in accordance to glucose concentrations and to maintain glucose tolerance. Because vitamin D acts through VDR, their impairment or reduced functionality, e.g., as a result of polymorphisms occurring in the VDR gene, may have a crucial impact on the balance in the vitamin D concentration in the circulation, and the final metabolite activity throughout the body.
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
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Group I: Seventy patients with pancreatitis |
Genetic: Measurement of VDR genetic polymorphism
VDR genetic polymorphism will be measured by RFLP and correlated with viral, autoimmune markers.
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Group II: Thirty healthy controls |
Genetic: Measurement of VDR genetic polymorphism
VDR genetic polymorphism will be measured by RFLP and correlated with viral, autoimmune markers.
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Outcome Measures
Primary Outcome Measures
- The mean difference of single nucleotide polymorphism of VDR between pancreatitis patients and healthy controls [Baseline]
Single nucleotide polymorphism of VDR mean difference will be measured by restriction fragment length polymorphism.
Eligibility Criteria
Criteria
Inclusion Criteria:
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Patients with a confirmed diagnosis of acute pancreatitis.
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Patients of age 20 years or more who are willing to participate in the study and give their consent for same.
Exclusion Criteria:
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with a history of severe liver disease,
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sepsis
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Chest disease.
Contacts and Locations
Locations
No locations specified.Sponsors and Collaborators
- Assiut University
Investigators
None specified.Study Documents (Full-Text)
None provided.More Information
Publications
- Chan A, Bazerbachi F, Hanson B, Alraies MC, Duran-Nelson A. Cytomegalovirus hepatitis and pancreatitis in the immunocompetent. Ochsner J. 2014 Summer;14(2):295-9.
- Cieślińska A, Kostyra E, Fiedorowicz E, Snarska J, Kordulewska N, Kiper K, Savelkoul HFJ. Single Nucleotide Polymorphisms in the Vitamin D Receptor Gene (VDR) May Have an Impact on Acute Pancreatitis (AP) Development: A Prospective Study in Populations of AP Patients and Alcohol-Abuse Controls. Int J Mol Sci. 2018 Jun 29;19(7). pii: E1919. doi: 10.3390/ijms19071919.
- Ozsvár Z, Deák J, Pap A. Possible role of Coxsackie-B virus infection in pancreatitis. Int J Pancreatol. 1992 Apr;11(2):105-8.
- Shimizu K, Tahara J, Takayama Y, Akao J, Ajihara T, Nagao K, Shiratori K, Tokushige K. Assessment of the Rate of Decrease in Serum IgG4 Level of Autoimmune Pancreatitis Patients in Response to Initial Steroid Therapy as a Predictor of Subsequent Relapse. Pancreas. 2016 Oct;45(9):1341-6. doi: 10.1097/MPA.0000000000000633.
- Autoimmune pancreatitis