Treffer: Photoreceptor layer thinning is an early biomarker for type 2 diabetes: a cohort study in UK Biobank.

Title:
Photoreceptor layer thinning is an early biomarker for type 2 diabetes: a cohort study in UK Biobank.
Authors:
Ma Y; State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China., Wu Y; State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China., Hu L; State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China., Zhang X; State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China., Zheng D; State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China., Liu Z; State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China. liuzhenzhen@gzzoc.com., Jin G; State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, China. jingm@mail2.sysu.edu.cn.
Source:
Eye (London, England) [Eye (Lond)] 2025 Dec; Vol. 39 (17), pp. 3135-3141. Date of Electronic Publication: 2025 Oct 03.
Publication Type:
Journal Article
Language:
English
Journal Info:
Publisher: Nature Publishing Group Country of Publication: England NLM ID: 8703986 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1476-5454 (Electronic) Linking ISSN: 0950222X NLM ISO Abbreviation: Eye (Lond) Subsets: MEDLINE
Imprint Name(s):
Publication: <2003->: London : Nature Publishing Group
Original Publication: [London : Ophthalmological Society of the United Kingdom, 1987-
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Substance Nomenclature:
0 (Biomarkers)
Entry Date(s):
Date Created: 20251003 Date Completed: 20251204 Latest Revision: 20251204
Update Code:
20251204
PubMed Central ID:
PMC12623438
DOI:
10.1038/s41433-025-04068-7
PMID:
41044166
Database:
MEDLINE

Weitere Informationen

Objectives: To investigate the association between photoreceptor outer segment (POS) thickness and the risk of T2D.
Methods: This prospective cohort study included 35,024 UK Biobank participants with high-quality optical coherence tomography (OCT) images, excluding individuals with neurological or ocular diseases. Cox proportional hazard models were used to analyse the association between baseline POS thickness and incident T2D. Risk model improvement was assessed using net reclassification improvement (NRI) and integrated discrimination improvement (IDI).
Results: Among 35,024 participants (mean age, 55.6 years; 54.0% women), 1187 (3.39%) developed T2D during a median follow-up of 13.18 years. A decrease of 5 μm in POS thickness was linked to a 10% higher risk of T2D (HR, 1.10; 95% CI, 1.02-1.18; P = 0.010). Participants in the lowest tertile of POS thickness had a 22% higher T2D risk compared to those in the highest tertile (HR, 1.22; 95% CI, 1.06-1.42; P = 0.007). Adding POS thickness to traditional risk models significantly improved predictive accuracy (NRI, 0.0356; P = 0.010; IDI, 0.0003; P = 0.010).
Conclusions: POS thinning detected by OCT is significantly associated with an increased risk of T2D and improves risk prediction when added to conventional models. These findings suggest that POS thickness may serve as a novel biomarker for early detection of T2D, supporting timely interventions to reduce risk.
(© 2025. The Author(s), under exclusive licence to The Royal College of Ophthalmologists.)

Competing interests: The authors declare no competing interests. Ethics approval and consent to participate: The UK Biobank Study has received ethical approval from the National Information Governance Board for Health and Social Care and the NHS North West Multicenter Research Ethics Committee (REC reference: 16/NW/0274). All participants in the study provided informed consent through electronic signature during the baseline assessment. This present study was conducted under application number 87083 of the UK Biobank resource.