Vitamin D Receptor Gene Variants Associated with Serum 25(OH)D3 Levels in Patients with Dry Eye Syndrome
Abstract
1. Introduction
2. Materials and Methods
2.1. Measurement of Plasma 25(OH)D3 Concentration
2.2. Genotyping of VDR Gene SNPs
- Forward: 5′-CAGAGCATGGACAGGGAGCAA-3′
- Reverse: 5′-GCAACTCCTCATGGCTGAGGTCTC-3′ (expected fragment size: 745 bp)
- Forward: 5′-AGCTGGCCCTGGCACTGACTCTGGCTCTG-3′
- Reverse: 5′-ATGGAAACACCTGCTTCTTCTCCCTC-3′ (expected fragment size: 265 bp)
- Forward: 5′-AGTGTGCAGGCGATTCGTAG-3′
- Reverse: 5′-ATAGGCAGAACCATCTCTCAG-3′ (expected fragment size: 191 bp)
- Forward: 5′-GCAGAGCATGGACAGGGAGCAA-3′
- Reverse: 5′-CAGGGAAGGAAGTAAGGGGAAGG-3′ (expected fragment size: 740 bp)
2.3. Statistical Analysis
3. Results
- Deficient (<20 ng/mL).
- Insufficient (20–30 ng/mL).
- Sufficient (>30 ng/mL)
3.1. Genotype Distribution and Hardy–Weinberg Equilibrium
3.2. Genotypes and Vitamin D Status
4. Discussion
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Polymorphism | Genotype | Deficient | Insufficient | Sufficient | Total | Allele |
---|---|---|---|---|---|---|
TaqI (rs731236) | TT (M) | 4 | 4 | 25 | 33 | T |
Tt (H) | 1 | 2 | 16 | 19 | t | |
tt (W) | 0 | 0 | 5 | 5 | ||
Total (n) | 5 | 6 | 46 | 57 | ||
FokI (rs2228570) | FF (W) | 22 | 7 | 5 | 34 | F |
Ff (H) | 6 | 5 | 5 | 16 | f | |
ff (M) | 2 | 2 | 2 | 6 | ||
Total (n) | 30 | 14 | 12 | 56 | ||
ApaI (rs7975232) | AA (M) | 20 | 10 | 7 | 37 | A |
Aa (H) | 9 | 2 | 4 | 15 | a | |
aa (W) | 0 | 5 | 2 | 7 | ||
Total (n) | 29 | 17 | 13 | 59 | ||
BsmI (rs1544410) | BB (M) | 16 | 7 | 7 | 30 | B |
Bb (H) | 15 | 2 | 2 | 19 | b | |
bb (W) | 3 | 2 | 2 | 7 | ||
Total (n) | 34 | 11 | 11 | 57 |
Polymorphism (rsID) | Observed Genotypes (n) | Allele Frequencies (p/q) | Expected HWE Distribution (Hom Dom/Het/Hom Rec) | χ2 (HWE) | p-Value |
---|---|---|---|---|---|
TaqI (rs731236) | TT: 33, Tt: 19, tt: 5 | p = 0.75, q = 0.25 | 31.7/21.6/3.7 | 0.52 | 0.47 |
FokI (rs2228570) | FF: 34, Ff: 16, ff: 6 | p = 0.75, q = 0.25 | 31.5/21.0/3.5 | 1.10 | 0.29 |
ApaI (rs7975232) | AA: 37, Aa: 15, aa: 7 | p = 0.75, q = 0.25 | 33.6/21.9/3.6 | 1.65 | 0.20 |
BsmI (rs1544410) | BB: 30, Bb: 19, bb: 7 | p = 0.71, q = 0.29 | 27.9/23.3/4.9 | 0.87 | 0.35 |
Polymorphism (rsID) | χ2 | df | p-Value |
---|---|---|---|
TaqI (rs731236) | 2.35 | 2 | 0.125 |
FokI (rs2228570) | 1.89 | 2 | 0.169 |
ApaI (rs7975232) | 6.53 | 2 | 0.0384 * |
BsmI (rs1544410) | 0.98 | 2 | 0.322 |
Overall | 91.77 | - | <0.0001 *** |
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Savic, B.; Stanojlovic, S.; Savic, B.; Kostic, J.; Lucic, M.; Jankovic Terzic, K.; Dacic-Krnjaja, B. Vitamin D Receptor Gene Variants Associated with Serum 25(OH)D3 Levels in Patients with Dry Eye Syndrome. Life 2025, 15, 1552. https://doi.org/10.3390/life15101552
Savic B, Stanojlovic S, Savic B, Kostic J, Lucic M, Jankovic Terzic K, Dacic-Krnjaja B. Vitamin D Receptor Gene Variants Associated with Serum 25(OH)D3 Levels in Patients with Dry Eye Syndrome. Life. 2025; 15(10):1552. https://doi.org/10.3390/life15101552
Chicago/Turabian StyleSavic, Borivoje, Svetlana Stanojlovic, Bozidar Savic, Jelena Kostic, Margita Lucic, Katarina Jankovic Terzic, and Bojana Dacic-Krnjaja. 2025. "Vitamin D Receptor Gene Variants Associated with Serum 25(OH)D3 Levels in Patients with Dry Eye Syndrome" Life 15, no. 10: 1552. https://doi.org/10.3390/life15101552
APA StyleSavic, B., Stanojlovic, S., Savic, B., Kostic, J., Lucic, M., Jankovic Terzic, K., & Dacic-Krnjaja, B. (2025). Vitamin D Receptor Gene Variants Associated with Serum 25(OH)D3 Levels in Patients with Dry Eye Syndrome. Life, 15(10), 1552. https://doi.org/10.3390/life15101552