PMID- 26393465 OWN - NLM STAT- MEDLINE DCOM- 20160105 LR - 20181113 IS - 1552-5783 (Electronic) IS - 0146-0404 (Print) IS - 0146-0404 (Linking) VI - 56 IP - 10 DP - 2015 Sep TI - Single Nucleotide Polymorphisms in the BDNF, VDR, and DNASE 1 Genes in Dry Eye Disease Patients: A Case-Control Study. PG - 5990-6 LID - 10.1167/iovs.15-17036 [doi] AB - PURPOSE: To identify single nucleotide polymorphisms (SNPs) in the brain-derived neurotrophic factor (BDNF), vitamin D receptor (VDR), and DNASE1 genes that may be associated with dry eye disease (DED), and determine whether this association varies by the presence of depression. METHODS: A case-control study was performed with 64 DED cases and 51 controls. We collected 2 mL of saliva following a routine eye exam. Genotyping was performed using both custom and predesigned TaqMan SNP genotyping assays for 12 hypothesized SNPs. Genotype and allele frequencies of cases and controls were evaluated. Odds ratios were calculated for allele frequencies. Stratified analysis was performed to determine if the association between SNPs and DED varied by depression status. RESULTS: A total of 18% of cases had the minor allele A of Val66Met (rs6265) SNP in the BDNF gene compared with 9% of the controls (P = 0.05). Odds ratio was 2.22. Two SNPs (Fokl-rs2228570 and Apal-rs7975232) in the VDR genes also varied between DED cases and controls. Cases were 1.72 and 1.66 times more likely to have the minor allele A in rs2228570 and rs7975232, respectively, than controls (P = 0.06 for both). While not statistically significant, among patients with depression, DED cases were 3.93 times more likely to have the minor allele A of the Val66Met SNP compared to controls. CONCLUSIONS: This pilot study showed that Val66Met in the BDNF gene and two SNPs, Fokl and Apal, in the VDR gene may potentially be associated with DED. Additionally, the association between DED and Val66Met may vary by depression status. FAU - Hallak, Joelle A AU - Hallak JA AD - Corneal Neurobiology Laboratory Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, College of Medicine, Chicago, Illinois, United States 2Quantitative Scientific Solutions, LLC, Arlington, Virginia, United States. FAU - Tibrewal, Sapna AU - Tibrewal S AD - Corneal Neurobiology Laboratory Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, College of Medicine, Chicago, Illinois, United States. FAU - Mohindra, Neil AU - Mohindra N AD - Corneal Neurobiology Laboratory Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, College of Medicine, Chicago, Illinois, United States. FAU - Gao, Xiaoyi AU - Gao X AD - Quantitative Ocular Genomics Laboratory, Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, College of Medicine, Chicago, Illinois, United States. FAU - Jain, Sandeep AU - Jain S AD - Corneal Neurobiology Laboratory Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, College of Medicine, Chicago, Illinois, United States. LA - eng GR - R01 EY022651/EY/NEI NIH HHS/United States GR - R01 EY024966/EY/NEI NIH HHS/United States GR - R01EY022651/EY/NEI NIH HHS/United States GR - R01EY024966/EY/NEI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - United States TA - Invest Ophthalmol Vis Sci JT - Investigative ophthalmology & visual science JID - 7703701 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Receptors, Calcitriol) RN - 7171WSG8A2 (BDNF protein, human) RN - 9007-49-2 (DNA) RN - EC 3.1.21.1 (Deoxyribonuclease I) SB - IM MH - Alleles MH - Brain-Derived Neurotrophic Factor/*genetics/metabolism MH - DNA/*genetics MH - Deoxyribonuclease I/*genetics/metabolism MH - Dry Eye Syndromes/*genetics/metabolism MH - Female MH - Gene Frequency MH - Genetic Association Studies MH - *Genetic Predisposition to Disease MH - Genotype MH - Humans MH - Male MH - Middle Aged MH - Pilot Projects MH - *Polymorphism, Single Nucleotide MH - Receptors, Calcitriol/*genetics/metabolism MH - Retrospective Studies PMC - PMC5102496 EDAT- 2015/09/24 06:00 MHDA- 2016/01/06 06:00 PMCR- 2015/09/01 CRDT- 2015/09/23 06:00 PHST- 2015/09/23 06:00 [entrez] PHST- 2015/09/24 06:00 [pubmed] PHST- 2016/01/06 06:00 [medline] PHST- 2015/09/01 00:00 [pmc-release] AID - 2443513 [pii] AID - IOVS-15-17036 [pii] AID - 10.1167/iovs.15-17036 [doi] PST - ppublish SO - Invest Ophthalmol Vis Sci. 2015 Sep;56(10):5990-6. doi: 10.1167/iovs.15-17036.