eISSN: 1896-9151
ISSN: 1734-1922
Archives of Medical Science
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SCImago Journal & Country Rank
5/2019
vol. 15
 
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abstract:
Basic research

Genes and metabolic pathway of sarcoidosis: identification of key players and risk modifiers

Mihailo I. Stjepanovic
,
Violeta Mihailovic-Vucinic
,
Vesna Spasovski
,
Jelena Milin-Lazovic
,
Vesna Skodric-Trifunovic
,
Sanja Stankovic
,
Marina Andjelkovic
,
Jovana Komazec
,
Ana Momcilovic
,
Milena Santric-Milicevic
,
Sonja Pavlovic

Arch Med Sci 2019; 15 (5): 1138–1146
Online publish date: 2018/11/23
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Introduction
Sarcoidosis is a rare multisystem granulomatous disease with unknown etiology. The interplay of vitamin D deficiency and genetic polymorphisms in genes coding for the proteins relevant for metabolism of vitamin D is an important, but unexplored area. The aim of this study was to investigate the association between single nucleotide polymorphisms (SNPs) in CYP2R1 (rs10741657), CYP27B1 (rs10877012), DBP (rs7041; rs4588), and VDR (rs2228570) genes and sarcoidosis, as well as the association between these SNPs and 25(OH)D levels in sarcoidosis patients.

Material and methods
For that purpose we genotyped 86 sarcoidosis patients and 50 healthy controls using the PCR-RFLP method.

Results
Subjects carrying the CC genotype of CYP27B1 rs10877012 have 10 times lower odds of suffering from sarcoidosis. Moreover, DBP rs4588 AA genotype was shown to be a susceptibility factor, where carriers of this genotype had eight times higher odds for developing sarcoidosis. In addition, the A allele of the DBP gene (rs4588) was associated with lower levels of 25(OH)D in sarcoidosis patients.

Conclusions
These results suggest that patients with vitamin D deficiency should be regularly tested for genetic modifiers that are related to sarcoidosis in order to prevent development of serious forms of sarcoidosis.

keywords:

single nucleotide polymorphisms, CYP27B1, VDR, DBP, CYP2R1, 25(OH)D

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