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INCREASED SERUM LEVELS OF UREA AND CREATININE ARE SURROGATE MARKERS FOR DISRUPTION OF RETINAL PHOTORECEPTOR EXTERNAL LIMITING MEMBRANE AND INNER SEGMENT ELLIPSOID ZONE IN TYPE 2 DIABETES MELLITUS
S. Saxena, S. Ruia, S. Prasad, A. Jain, N. Mishra, SM. Natu, CH. Meyer, JS. Gilhotra, P. Kruzliak, L. Akduman,
Language English Country United States
Document type Journal Article
- MeSH
- Analysis of Variance MeSH
- Biomarkers blood MeSH
- Diabetes Mellitus, Type 2 blood pathology MeSH
- Diabetic Retinopathy blood pathology physiopathology MeSH
- Adult MeSH
- Epiretinal Membrane pathology MeSH
- Photoreceptor Cells, Vertebrate pathology MeSH
- Creatinine blood MeSH
- Middle Aged MeSH
- Humans MeSH
- Urea blood MeSH
- Retinal Diseases MeSH
- Aged MeSH
- Case-Control Studies MeSH
- Severity of Illness Index MeSH
- Retinal Photoreceptor Cell Inner Segment pathology MeSH
- Check Tag
- Adult MeSH
- Middle Aged MeSH
- Humans MeSH
- Male MeSH
- Aged MeSH
- Female MeSH
- Publication type
- Journal Article MeSH
PURPOSE: To evaluate the role of serum urea and creatinine as surrogate markers for disruption of retinal photoreceptor external limiting membrane (ELM) and inner segment ellipsoid zone (EZ) in Type 2 diabetic retinopathy (DR) using spectral-domain optical coherence tomography, for the first time. METHODS: One hundred and seventeen consecutive cases of Type 2 diabetes mellitus (diabetes without retinopathy [No DR; n = 39], nonproliferative diabetic retinopathy [NPDR; n = 39], proliferative diabetic retinopathy [PDR; n = 39]) and 40 healthy control subjects were included. Serum levels of urea and creatinine were assessed using standard protocol. Spectral-domain optical coherence tomography was used to grade the disruption of ELM and EZ as follows: Grade 0, no disruption of ELM and EZ; Grade 1, ELM disrupted, EZ intact; Grade 2, ELM and EZ disrupted. Data were analyzed statistically. RESULTS: Increase in serum levels of urea (F = 22.93) and creatinine (F = 15.82) and increased grades of disruption of ELM and EZ (γ = 116.3) were observed with increased severity of DR (P < 0.001). Increase in serum levels of urea (F = 10.45) and creatinine (F = 6.89) was observed with increased grades of disruption of ELM and EZ (P = 0.001). CONCLUSION: Serum levels of urea and creatinine are surrogate markers for disruption of retinal photoreceptor ELM and EZ on spectral-domain optical coherence tomography in DR.
§Department of Ophthalmology Pallas Klinik Olten Switzerland
¶Department of Ophthalmology University of Adelaide Adelaide South Australia Australia
*Retina Service Department of Ophthalmology King George's Medical University Lucknow India
References provided by Crossref.org
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- $a Saxena, Sandeep $u *Retina Service, Department of Ophthalmology, King George's Medical University, Lucknow, India;Departments of †Social and Preventive Medicine, and‡Pathology, King George's Medical University, Lucknow, India;§Department of Ophthalmology, Pallas Klinik, Olten, Switzerland;¶Department of Ophthalmology, University of Adelaide, Adelaide, South Australia, Australia;**Department of Cardiovascular Diseases, International Clinical Research Center, St. Anne's University Hospital and Masaryk University, Brno, Czech Republic; and††Department of Ophthalmology, Saint Louis University Eye Institute, Saint Louis University, St. Louis, Missouri.
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- $a INCREASED SERUM LEVELS OF UREA AND CREATININE ARE SURROGATE MARKERS FOR DISRUPTION OF RETINAL PHOTORECEPTOR EXTERNAL LIMITING MEMBRANE AND INNER SEGMENT ELLIPSOID ZONE IN TYPE 2 DIABETES MELLITUS / $c S. Saxena, S. Ruia, S. Prasad, A. Jain, N. Mishra, SM. Natu, CH. Meyer, JS. Gilhotra, P. Kruzliak, L. Akduman,
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- $a PURPOSE: To evaluate the role of serum urea and creatinine as surrogate markers for disruption of retinal photoreceptor external limiting membrane (ELM) and inner segment ellipsoid zone (EZ) in Type 2 diabetic retinopathy (DR) using spectral-domain optical coherence tomography, for the first time. METHODS: One hundred and seventeen consecutive cases of Type 2 diabetes mellitus (diabetes without retinopathy [No DR; n = 39], nonproliferative diabetic retinopathy [NPDR; n = 39], proliferative diabetic retinopathy [PDR; n = 39]) and 40 healthy control subjects were included. Serum levels of urea and creatinine were assessed using standard protocol. Spectral-domain optical coherence tomography was used to grade the disruption of ELM and EZ as follows: Grade 0, no disruption of ELM and EZ; Grade 1, ELM disrupted, EZ intact; Grade 2, ELM and EZ disrupted. Data were analyzed statistically. RESULTS: Increase in serum levels of urea (F = 22.93) and creatinine (F = 15.82) and increased grades of disruption of ELM and EZ (γ = 116.3) were observed with increased severity of DR (P < 0.001). Increase in serum levels of urea (F = 10.45) and creatinine (F = 6.89) was observed with increased grades of disruption of ELM and EZ (P = 0.001). CONCLUSION: Serum levels of urea and creatinine are surrogate markers for disruption of retinal photoreceptor ELM and EZ on spectral-domain optical coherence tomography in DR.
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