Volume 132, Issue 4 pp. 1720-1727
Forschungsartikel

Urine Metabolic Fingerprints Encode Subtypes of Kidney Diseases

Jing Yang

Jing Yang

School of Biomedical Engineering, Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, 200030 P. R. China

These authors contributed equally to this work.

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Ran Wang

Ran Wang

Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200001 P. R. China

These authors contributed equally to this work.

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Lin Huang

Lin Huang

iMS Clinic, Hangzhou, 310052 P. R. China

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Mengji Zhang

Mengji Zhang

School of Biomedical Engineering, Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, 200030 P. R. China

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Jingyang Niu

Jingyang Niu

School of Biomedical Engineering, Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, 200030 P. R. China

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Chunde Bao

Chunde Bao

Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200001 P. R. China

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Nan Shen

Nan Shen

Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200001 P. R. China

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Min Dai

Min Dai

Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200001 P. R. China

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Qiang Guo

Qiang Guo

Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200001 P. R. China

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Prof. Qian Wang

Prof. Qian Wang

School of Biomedical Engineering, Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, 200030 P. R. China

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Qin Wang

Qin Wang

Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200001 P. R. China

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Qiong Fu

Corresponding Author

Qiong Fu

Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200001 P. R. China

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Prof. Kun Qian

Corresponding Author

Prof. Kun Qian

School of Biomedical Engineering, Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, 200030 P. R. China

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First published: 12 December 2019
Citations: 8

Abstract

Metabolic fingerprints of biofluids encode diverse diseases and particularly urine detection offers complete non-invasiveness for diagnostics of the future. Present urine detection affords unsatisfactory performance and requires advanced materials to extract molecular information, due to the limited biomarkers and high sample complexity. Herein, we report plasmonic polymer@Ag for laser desorption/ionization mass spectrometry (LDI-MS) and sparse-learning-based metabolic diagnosis of kidney diseases. Using only 1 μL of urine without enrichment or purification, polymer@Ag afforded urine metabolic fingerprints (UMFs) by LDI-MS in seconds. Analysis by sparse learning discriminated lupus nephritis from various other non-lupus nephropathies and controls. We combined UMFs with urine protein levels (UPLs) and constructed a new diagnostic model to characterize subtypes of kidney diseases. Our work guides urine-based diagnosis and leads to new personalized analytical tools for other diseases.

Conflict of interest

The authors declare competing financial interest. The authors have filed patents for both the technology and the use of the technology to analyze biological samples.

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