Serum Autotaxin Levels Are Associated with Proteinuria and Kidney Lesions in Japanese Type 2 Diabetic Patients with Biopsy-proven Diabetic Nephropathy
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- Shimizu Miho
- Division of Nephrology, Kanazawa University Hospital, Japan Department of Disease Control and Homeostasis, Kanazawa University Graduate School of Medical Sciences, Japan
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- Furuichi Kengo
- Division of Nephrology, Kanazawa University Hospital, Japan Department of Disease Control and Homeostasis, Kanazawa University Graduate School of Medical Sciences, Japan
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- Toyama Tadashi
- Division of Nephrology, Kanazawa University Hospital, Japan Department of Disease Control and Homeostasis, Kanazawa University Graduate School of Medical Sciences, Japan
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- Yamahana Junya
- Department of Disease Control and Homeostasis, Kanazawa University Graduate School of Medical Sciences, Japan Department of Internal Medicine, Toyama Prefectural Central Hospital, Japan
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- Ohkawa Ryunosuke
- Department of Clinical Laboratory, The University of Tokyo Hospital, Japan
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- Igarashi Koji
- Bioscience Division, Reagent Development Department, AIA Research Group, TOSOH Corporation, Japan
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- Aoki Junken
- Laboratory of Molecular and Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Japan
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- Kaneko Shuichi
- Department of Disease Control and Homeostasis, Kanazawa University Graduate School of Medical Sciences, Japan
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- Yatomi Yutaka
- Department of Clinical Laboratory, The University of Tokyo Hospital, Japan Department of Clinical Laboratory Medicine, Graduate School of Medicine, The University of Tokyo, Japan
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- Wada Takashi
- Division of Nephrology, Kanazawa University Hospital, Japan Department of Laboratory Medicine, Kanazawa University Graduate School of Medical Sciences, Japan
Bibliographic Information
- Other Title
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- Serum Autotaxin Concentrations Are Associated with Proteinuria and Kidney Lesions in Japanese Type 2 Diabetic Patients with Biopsy-proven Diabetic Nephropathy
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Abstract
Objective We evaluated the relationships between the serum autotaxin (ATX) levels and the clinical and pathological parameters, as well as the long-term renal outcome, in type 2 diabetic patients with biopsy-proven diabetic nephropathy.<br> Methods In this retrospective single-center cohort study, serum samples were collected from 38 Japanese type 2 diabetic patients with biopsy-proven diabetic nephropathy at the time of renal biopsy. The serum ATX levels were measured using a specific sandwich enzyme immunoassay.<br> Results A multivariate linear regression analysis revealed the urinary protein excretion to be independently associated with the serum ATX levels. In addition, patients with serum ATX levels above the median showed more advanced diffuse lesions, nodular lesions and arteriolar hyalinosis compared to those with serum ATX levels below the median. However, high serum ATX levels were not associated with any increase in the number of renal composite events [a need for dialysis or a 50% decline in the estimated glomerular filtration rate (eGFR) from baseline].<br> Conclusion The serum ATX levels in type 2 diabetic patients with diabetic nephropathy were associated with proteinuria and diabetic kidney lesions, although the serum ATX levels were not identified to be a predictive indicator for the renal outcome.<br>
Journal
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- Internal Medicine
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Internal Medicine 55 (3), 215-221, 2016
The Japanese Society of Internal Medicine