Plausible diagnostic value of urinary isomeric dimethylarginine ratio for diabetic nephropathy

Altered circulatory asymmetric and symmetric dimethylarginines have been independently reported in patients with end-stage renal failure suggesting their potential role as mediators and early biomarkers of nephropathy. These alterations can also be reflected in urine. Herein, we aimed to evaluate ur...

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Veröffentlicht in:Scientific reports 2020-02, Vol.10 (1), p.2970-2970, Article 2970
Hauptverfasser: Parmar, Dharmeshkumar, Bhattacharya, Nivedita, Kannan, Shanthini, Vadivel, Sangeetha, Pandey, Gautam Kumar, Ghanate, Avinash, Ragi, Nagarjuna Chary, Prabu, Paramasivam, Pramodkumar, Thyparambil Aravindakshan, Manickam, Nagaraj, Mohan, Viswanathan, Sripadi, Prabhakar, Kuppan, Gokulakrishnan, Panchagnula, Venkateswarlu
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container_issue 1
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container_title Scientific reports
container_volume 10
creator Parmar, Dharmeshkumar
Bhattacharya, Nivedita
Kannan, Shanthini
Vadivel, Sangeetha
Pandey, Gautam Kumar
Ghanate, Avinash
Ragi, Nagarjuna Chary
Prabu, Paramasivam
Pramodkumar, Thyparambil Aravindakshan
Manickam, Nagaraj
Mohan, Viswanathan
Sripadi, Prabhakar
Kuppan, Gokulakrishnan
Panchagnula, Venkateswarlu
description Altered circulatory asymmetric and symmetric dimethylarginines have been independently reported in patients with end-stage renal failure suggesting their potential role as mediators and early biomarkers of nephropathy. These alterations can also be reflected in urine. Herein, we aimed to evaluate urinary asymmetric to symmetric dimethylarginine ratio (ASR) for early prediction of diabetic nephropathy (DN). In this cross-sectional study, individuals with impaired glucose tolerance (IGT), newly diagnosed diabetes (NDD), diabetic microalbuminuria (MIC), macroalbuminuria (MAC), and normal glucose tolerance (NGT) were recruited from Dr. Mohans’ Diabetes Specialties centre, India. Urinary ASR was measured using a validated high-throughput MALDI-MS/MS method. Significantly lower ASR was observed in MIC (0.909) and MAC (0.741) in comparison to the NGT and NDD groups. On regression models, ASR was associated with MIC [OR: 0.256; 95% CI: 0.158–0.491] and MAC [OR 0.146; 95% CI: 0.071–0.292] controlled for all the available confounding factors. ROC analysis revealed ASR cut-point of 0.95 had C-statistic of 0.691 (95% CI: 0.627-0.755) to discriminate MIC from NDD with 72% sensitivity. Whereas, an ASR cut-point of 0.82 had C-statistic of 0.846 (95% CI: 0.800 - 0.893) had 91% sensitivity for identifying MAC. Our results suggest ASR as a potential early diagnostic biomarker for DN among the Asian Indians.
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These alterations can also be reflected in urine. Herein, we aimed to evaluate urinary asymmetric to symmetric dimethylarginine ratio (ASR) for early prediction of diabetic nephropathy (DN). In this cross-sectional study, individuals with impaired glucose tolerance (IGT), newly diagnosed diabetes (NDD), diabetic microalbuminuria (MIC), macroalbuminuria (MAC), and normal glucose tolerance (NGT) were recruited from Dr. Mohans’ Diabetes Specialties centre, India. Urinary ASR was measured using a validated high-throughput MALDI-MS/MS method. Significantly lower ASR was observed in MIC (0.909) and MAC (0.741) in comparison to the NGT and NDD groups. On regression models, ASR was associated with MIC [OR: 0.256; 95% CI: 0.158–0.491] and MAC [OR 0.146; 95% CI: 0.071–0.292] controlled for all the available confounding factors. ROC analysis revealed ASR cut-point of 0.95 had C-statistic of 0.691 (95% CI: 0.627-0.755) to discriminate MIC from NDD with 72% sensitivity. 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These alterations can also be reflected in urine. Herein, we aimed to evaluate urinary asymmetric to symmetric dimethylarginine ratio (ASR) for early prediction of diabetic nephropathy (DN). In this cross-sectional study, individuals with impaired glucose tolerance (IGT), newly diagnosed diabetes (NDD), diabetic microalbuminuria (MIC), macroalbuminuria (MAC), and normal glucose tolerance (NGT) were recruited from Dr. Mohans’ Diabetes Specialties centre, India. Urinary ASR was measured using a validated high-throughput MALDI-MS/MS method. Significantly lower ASR was observed in MIC (0.909) and MAC (0.741) in comparison to the NGT and NDD groups. On regression models, ASR was associated with MIC [OR: 0.256; 95% CI: 0.158–0.491] and MAC [OR 0.146; 95% CI: 0.071–0.292] controlled for all the available confounding factors. ROC analysis revealed ASR cut-point of 0.95 had C-statistic of 0.691 (95% CI: 0.627-0.755) to discriminate MIC from NDD with 72% sensitivity. Whereas, an ASR cut-point of 0.82 had C-statistic of 0.846 (95% CI: 0.800 - 0.893) had 91% sensitivity for identifying MAC. Our results suggest ASR as a potential early diagnostic biomarker for DN among the Asian Indians.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>32076062</pmid><doi>10.1038/s41598-020-59897-1</doi><tpages>1</tpages><orcidid>https://orcid.org/0000-0002-8626-1601</orcidid><oa>free_for_read</oa></addata></record>
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subjects 692/53/2423
692/699/2743/137/138
82/58
Adult
Aged
Albuminuria - diagnosis
Albuminuria - etiology
Albuminuria - urine
Arginine - analogs & derivatives
Arginine - urine
Biomarkers
Chromatography, High Pressure Liquid
Cross-Sectional Studies
Diabetes
Diabetes mellitus
Diabetes Mellitus, Type 2 - complications
Diabetes Mellitus, Type 2 - urine
Diabetic Nephropathies - diagnosis
Diabetic Nephropathies - etiology
Diabetic Nephropathies - urine
Diabetic nephropathy
End-stage renal disease
Feasibility Studies
Female
Glucose
Glucose tolerance
Humanities and Social Sciences
Humans
Kidney diseases
Male
Middle Aged
multidisciplinary
Nephropathy
Predictive Value of Tests
Regression analysis
Renal failure
ROC Curve
Science
Science (multidisciplinary)
Tandem Mass Spectrometry
title Plausible diagnostic value of urinary isomeric dimethylarginine ratio for diabetic nephropathy
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