Serdar Kaymaz1, Murat Kavas2, Aydın Demiray3, Uğur Karasu1, Veli Çobankara1, Sibel Boğa2

1Department of Internal Medicine, Division of Rheumatology, Medicine Faculty of Pamukkale University, Denizli, Türkiye
2Department of Chest Disease and Pulmonology, Istanbul Provincial Health Directorate Istanbul Süreyyapaşa Chest Diseases and Thoracic Surgery Training and Research Hospital, Istanbul, Türkiye
3Department of Genetic, Pamukkale University, Denizli, Türkiye

Keywords: Interferon-gamma receptor 1, sarcoidosis, polymorphism.


Objectives: This study aims to investigate the relationship between the interferon-gamma receptor 1 (IFNGR1) polymorphism and susceptibility to lung sarcoidosis.

Patients and methods: The study included a total of 55 patients (13 males, 42 females; mean age: 46.5±9.1 years; range, 22 to 66 years) with lung sarcoidosis and 28 healthy controls (6 males, 22 females; mean age: 43.9±5.9 years; range 22 to 60 years) selected from the Turkish population. The polymerase chain reaction was used for genotyping of participants to determine single-nucleotide polymorphisms. Hardy-Weinberg equilibrium, which is considered an important tool for detecting genotyping errors, was tested. Allele and genotype frequencies of patients and controls were compared using logistic regression analysis.

Results: The analyses showed no correlation between the tested IFNGR1 single-nucleotide polymorphism (rs2234711) and lung sarcoidosis (p>0.05). The categorization analysis according to the clinical features, laboratory, and radiographic characteristics showed no correlation between the tested polymorphism of IFNGR1 (rs2234711) and these characteristics (p>0.05).

Conclusion: The results of the study showed that the tested gene polymorphism (rs2234711) of IFNGR1 was not associated with lung sarcoidosis. More comprehensive studies are needed to verify our results.

Citation: Kaymaz S, Kavas M, Demiray A, Karasu U, Çobankara V, Boğa S. Investigation of the relationship between interferon-gamma receptor 1-56C/T gene polymorphism and genetic susceptibility to lung sarcoidosis: A cross-sectional study. Arch Rheumatol 2023;38(1):1-8.

Ethics Committee Approval

The study protocol was approved by the local ethics committee (approval number: 60116787-020/66924). The study was conducted in accordance with the principles of the Declaration of Helsinki.

Author Contributions

Designed the study: K.S., D.A.; Reviewed the articles and provided the data; K.S., D.A., K.U.; Analyzed the data: K.S., D.A., C.V.; Wrote the initial manuscript: K.S.; Reviewed drafts of thepaper: D.A., B.S., KM., K.U.; Prepared the figures: K.S.

Conflict of Interest

The authors declared no conflicts of interest with respect to the authorship and/or publication of this article.

Financial Disclosure

The authors received no financial support for the research and/or authorship of this article.