Screening for specific biomarkers in the serum of postmenopausal osteoporosis patients using proteomic fingerprint techniques

Li,Weixing; Liu,Chibo; Wang,Haibao

doi:10.3892/br.2012.12

January-February 2013 Volume 1 Issue 1

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January-February 2013 Volume 1 Issue 1

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Article

Screening for specific biomarkers in the serum of postmenopausal osteoporosis patients using proteomic fingerprint techniques

Authors:
- Weixing Li
- Chibo Liu
- Haibao Wang
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Affiliations: Center of Laboratory Medicine, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang 310014, P.R. China, Department of Clinical Laboratory, Taizhou Municipal Hospital, Taizhou, Zhejiang 318000, P.R. China, Department of Orthopedics, Taizhou Municipal Hospital, Taizhou, Zhejiang 318000, P.R. China
Pages: 129-133
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Published online on: September 25, 2012

https://doi.org/10.3892/br.2012.12
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Abstract

The aim of this study was to detect serum protein biomarkers and establish a diagnostic model for postmenopausal osteoporosis (PMOP) adopting matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) combined with weak cationic exchange (WCX) magnetic beads, and to study the clinical significance of the model in the early diagnosis of PMOP. Serum samples from 45 patients with PMOP, 30 patients with osteopenia and 40 healthy controls were prepared using WCX magnetic beads, and were then analyzed using a PBSⅡ-C mass spectrometer reader. The protein spectra of the serum samples were normalized using the Ciphergen Proteinchip software. The peak labeling was performed using the Biomarker Wizard software. The specific protein biomarkers were screened using the Biomarker Pattern software to construct a diagnostic model for PMOP. A total of 138 discriminative mass-to-charge (m/z) ratios were found to be associated with PMOP. Of these, the m/z peaks at 3167.4, 4071.1, 7771.7 and 8140.5 were used to construct a diagnostic model in a training set. In a test set, the sensitivity and specificity of the model were 91.11 and 92.86%, respectively. Potential protein biomarkers for PMOP were detected in patient serum using MALDI-TOF MS combined with WCX magnetic beads. This model of multiple biomarkers provided a powerful and reliable diagnostic method for PMOP diagnosis with high sensitivity and specificity.

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Journals

International Journal of Molecular Medicine

International Journal of Oncology

Molecular Medicine Reports

Oncology Reports

Experimental and Therapeutic Medicine

Oncology Letters

Biomedical Reports

Molecular and Clinical Oncology

World Academy of Sciences Journal

International Journal of Functional Nutrition

International Journal of Epigenetics

Medicine International

Screening for specific biomarkers in the serum of postmenopausal osteoporosis patients using proteomic fingerprint techniques

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