ASSOCIATION OF FOKI RESTRICTION FRAGMENT LENGTH POLYMORPHISM GENOTYPES WITH AUTOIMMUNE THYROID DISEASES

  • RANA A. HANON Scientific Research Center, College of Science, University of Duhok-Iraq
Keywords: ASSOCIATION OF FOKI RESTRICTION, AUTOIMMUNE THYROID DISEASES

Abstract

Vitamin D, besides its function in regulating the metabolism of calcium-phosphorus, turned out to play an
important immunomodulating role. VDR gene polymorphisms have been investigated for a presumed
association with autoimmune thyroid diseases with conflicting results. The current study was conducted in
Duhok Central Public Health laboratory and the Scientific Research Center/College of Science/University of
Duhok. It included thirty-five autoimmune thyroid patients and thirty-two healthy control subjects. Thyroid
hormones and antithyroid antibody serum levels were assayed. PCR-Restriction fragment length
polymorphism analysis was performed for genotyping and detecting mutations in VDR gene of both patients
and control. The results indicated that no statistically significant difference was found when mean serum
concentrations of thyroid hormones and TSH of patients and controls were compared. While, significant
difference (p<0.05) emerged when the mean serum concentrations of anti-TPO antibodies were compared.
Furthermore, RFLP genotyping analysis by utilizing Fok I restriction enzyme showed that 54.3 % of the
patients belonged to FF genotype, 31.4 % stood for Ff heterozygote genotype, and the last genotype (ff)
involved 14.3 % of the patients. In the control group, 27 (84.4 %) represented FF genotype, the remaining 5
subjects stood for Ff genotype correspondent to 15.6 % of the controls while ff genotype had not been
detected (0 %). In conclusion, different RFLP genotypes of the VDR receptor revealed various levels of
association with AITDs.

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Published
2020-09-12
How to Cite
HANON, R. A. (2020). ASSOCIATION OF FOKI RESTRICTION FRAGMENT LENGTH POLYMORPHISM GENOTYPES WITH AUTOIMMUNE THYROID DISEASES. Journal of Duhok University, 23(1), 126-133. https://doi.org/10.26682/sjuod.2020.23.1.13
Section
Pure and Engineering Sciences