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ID 115617
Watanabe, Toshihiro Sysmex R&D Center Americas
Fujimoto, Yuki Tokushima Bunri University
Morimoto, Aya Sysmex Corporation
Nishiyama, Mai Sysmex Corporation
Kawai, Akinori Sysmex Corporation
Okada, Seiki Sysmex Corporation
Aiba, Motohiro Tokushima Bunri University
Kawano, Tomoharu Tokushima Bunri University
Kawahigashi, Mina Tokushima Bunri University
Ishizu, Masashi Tokushima University
Hashida, Seiichi Ehime University
Content Type
Journal Article
Glomerular filtration rate (GFR) and urinary albumin excretion rate (UAER) are used to diagnose and classify the severity of chronic kidney disease. Total adiponectin (T-AN) and high molecular weight adiponectin (H-AN) assays were developed using the fully automated immunoassay system, HI-1000 and their significance over conventional biomarkers were investigated. The T-AN and H-AN assays had high reproducibility, good linearity, and sufficient sensitivity to detect trace amounts of adiponectin in the urine. Urine samples after gel filtration were analyzed for the presence of different molecular isoforms. Low molecular weight (LMW) forms and monomers were the major components (93%) of adiponectin in the urine from a diabetic patient with normoalbuminuria. Urine from a microalbuminuria patient contained both high molecular weight (HMW) (11%) and middle molecular weight (MMW) (28%) adiponectin, although the LMW level was still high (52%). The amount of HMW (32%) and MMW (42%) were more abundant than that of LMW (24%) in a diabetic patient with macroalbuminuria. T-AN (r = − 0.43) and H-AN (r = − 0.38) levels showed higher correlation with estimated GFR (eGFR) than UAER (r = − 0.23). Urinary levels of both T-AN and H-AN negatively correlated with renal function in diabetic patients and they may serve as new biomarkers for diabetic kidney disease.
Journal Title
Scientific Reports
Springer Nature
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Institute of Advanced Medical Sciences
University Hospital