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LncRNA TINCR rs2288947 Polymorphism as a Genetic Susceptibility Factor for Diabetic Retinopathy
Jinling Liu1, Jing Song2, Shasha Han3
1Department of Ocular Trauma, Hebei Medical University Third Hospital, Shijiazhuang, 050051, Hebei, China.
Background:
Long noncoding RNAs (lncRNAs) are critically involved in the pathogenesis of diabetic retinopathy (DR). Nevertheless, the role of lncRNA TINCR in DR has not been fully elucidated.
Objective:
This study aimed to examine the relationship between the lncRNA TINCR polymorphism rs2288947 and DR susceptibility in a Chinese Han population with Type 2 diabetes mellitus (T2DM) and to explore the diagnostic potential of plasma lncRNA TINCR levels.
Methods:
A case-control study was conducted with 507 participants (255 NPDR patients and 252 T2DM controls). Plasma TINCR expression was measured via qRT-PCR, and rs2288947 genotyping was performed using the TaqMan assay. Multivariate logistic regression and ROC analyses were applied to evaluate diagnostic value and risk associations.
Results:
LncRNA TINCR expression was significantly elevated and served as an independent risk factor in NPDR patients and exhibited high diagnostic value. The G allele of rs2288947 was associated with increased NPDR risk and higher lncRNA TINCR expression. Carriers of GA/GG genotypes showed upregulated lncRNA TINCR, which correlated with longer diabetes duration, elevated HbA1c, reduced HDL-C, and impaired renal function.
Conclusion:
Both lncRNA TINCR and the rs2288947 polymorphism contribute to NPDR development and show promise as biomarkers for early screening and risk evaluation.
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