Volume 54, Issue 4 pp. 1098-1106
Original Research

Serum Ceruloplasmin Depletion is Associated With Magnetic Resonance Evidence of Widespread Accumulation of Brain Iron in Parkinson's Disease

Xiaojun Guan PhD

Xiaojun Guan PhD

Department of Radiology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China

These authors contributed equally to this paper.

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Xueqin Bai MD

Xueqin Bai MD

Department of Radiology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China

These authors contributed equally to this paper.

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Cheng Zhou MD

Cheng Zhou MD

Department of Radiology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China

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Tao Guo MD

Tao Guo MD

Department of Radiology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China

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Jingjing Wu MD

Jingjing Wu MD

Department of Radiology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China

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Luyan Gu MD

Luyan Gu MD

Department of Neurology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China

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Ting Gao MD

Ting Gao MD

Department of Neurology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China

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Xuchu Wang PhD

Xuchu Wang PhD

Department of Laboratory Medicine, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China

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Hongjiang Wei PhD

Hongjiang Wei PhD

Institute for Medical Imaging Technology, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China

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Yuyao Zhang PhD

Yuyao Zhang PhD

School of Information Science and Technology, ShanghaiTech University, Shanghai, China

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Min Xuan PhD

Min Xuan PhD

Department of Radiology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China

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Quanquan Gu PhD

Quanquan Gu PhD

Department of Radiology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China

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Peiyu Huang PhD

Peiyu Huang PhD

Department of Radiology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China

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Chunlei Liu Ph.D.

Chunlei Liu Ph.D.

Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, California, USA

Helen Wills Neuroscience Institute, University of California, Berkeley, California, USA

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Baorong Zhang MD, PhD

Baorong Zhang MD, PhD

Department of Neurology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China

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Jiali Pu PhD

Jiali Pu PhD

Department of Neurology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China

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Zhe Song MD

Zhe Song MD

Department of Neurology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China

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Yaping Yan MD

Yaping Yan MD

Department of Neurology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China

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Xiaojun Xu MD

Xiaojun Xu MD

Department of Radiology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China

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Minming Zhang MD, PhD

Corresponding Author

Minming Zhang MD, PhD

Department of Radiology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China

Address reprint requests to: M.Z., No.88 Jiefang Road, Shangcheng District, Hangzhou, China, 31009. E-mail: [email protected]

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First published: 05 May 2021
Citations: 5

Abstract

Background

Excessive iron accumulation is one of the main pathogeneses of Parkinson's disease (PD). Ceruloplasmin plays an important role in keeping the iron homoeostasis.

Purpose

To explore the association between serum ceruloplasmin depletion and subcortical iron distribution in PD.

Study type

Prospective.

Population

One hundred and twenty-one normal controls, 34 PD patients with low serum ceruloplasmin (PD-LC), and 28 patients with normal serum ceruloplasmin (PD-NC).

Sequence

Enhanced susceptibility-weighted angiography (ESWAN) on a 3 T scanner.

Assessment

Quantitative susceptibility mapping was employed to quantify the regional iron content by using a semi-automatic method. Serum ceruloplasmin concentration was measured from peripheral blood sample. Clinical assessments were conducted by a neurologist.

Statistical Tests

General linear model was used to compare the intergroup difference of region iron distribution among groups, and the statistics was adjusted by Bonferroni method (P < 0.01). Partial correlation analysis was used to detect the association between regional iron distribution and serum ceruloplasmin concentration (P < 0.05).

Results

Compared with normal controls, significant iron accumulation in substantia nigra, putamen, and red nucleus was observed in PD-LC, while the only region showing significant iron accumulation was SN in PD-NC. Between PD-NC and PD-LC, the iron accumulation in putamen remained significantly different, which had a negative correlation with serum ceruloplasmin in whole PD patients (r = −0.338, P = 0.008).

Data Conclusion

Nigral iron accumulation characterizes PD patients without significant association with serum ceruloplasmin. Differentially, when PD patients appear with reduced serum ceruloplasmin, more widespread iron accumulation would be expected with additionally involving putamen and red nucleus. All these findings provide insightful evidence for the abnormal iron metabolism behind the ceruloplasmin depletion in PD.

Evidence Level

2

Technical Efficacy

2

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