Magnetic resonance spectroscopy of the cerebellum in patients with spinocerebellar ataxia type 3/Machado-Joseph disease
10.3969/j.issn.1672-7347.2011.06.007
- VernacularTitle:脊髓小脑性共济失调3型/Machado-Joseph病患者小脑的磁共振波谱分析
- Author:
Lifang LEI
;
Yunjie LIAO
;
Weihua LIAO
;
Jie ZHOU
;
Yi YUAN
;
Junling WANG
;
Hong JIANG
;
Lu SHEN
;
Beisha TANG
- Publication Type:Journal Article
- Keywords:
neuron-specific enolase (NSE);
protein S 100 B(S100B);
spinocerebellar ataxia type 3;
Machado-Joseph disease;
biochemical markers
- From:
Journal of Central South University(Medical Sciences)
2011;36(6):511-519
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the metabolite pattern and the severity in patients with spinocerebellar ataxia type 3/ Machado-Joseph disease (SCA3/MJD) by 1H magnetic resonance spectroscopy (1H-MRS) on different cerebellar regions, including cerebellar vermis, cerebellar peduncles, cerebellar cortex, and dentatum. Methods Thirty-six SCA3/MJD patients, and 27 sex, age-matched healthy controls were scanned with 1H-MRS for N-acetylaspartate (NAA), choline (Cho) and creatine (Cr). We made cerebellar vermis, cerebellar peduncles, cerebellar cortex, and dentatum as the region of interests (ROI), and finally got access to NAA/Cr, Cho/Cr, and NAA/Cho ratios. We also examined the CAG repeat numbers of MJD1 gene, scored the 36 patients by the scale for the assessment and rating of ataxia (SARA), analyzed the differences in ratios between SCA3/MJD patients and the control group, and explored whether relevance existed between these ratios and duration of the disease, age of onset, CAG repeat times, and SARA scores respectively. Results The ratio of NAA/Cr in SCA3/MJD patients showed a significant reduction in the cerebellar cortex, dentatum, cerebellar vermis and medipeduncle (P<0.01) compared with the controls. The ratio of NAA/Cho also showed significant reduction in the dentatum and cerebellar vermis (P<0.01). A number of correlations were found between the metabolite ratios of 1H-MRS and duration of the disease, age of onset, expanded CAG and SARA score in SCA3/MJD patients. Conclusion 1H-MRS, which shows the neural metabolic changes in the cerebella of SCA3/MJD patients, provides useful information about the severity of SCA3/MJD.
