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The comparative analysis between sporadic and genetic Creutzfeldt-Jakob disease in China
Xudong Li1,2, Qidong Chen3, Xinying Zou3
1Department of Cognitive Disorder, Beijing Tiantan Hospital, Capital Medical University, Fengtai District, South 4th Ring Road West 119, Beijing, 100070, China. lixd73cj@163.com.
Insights
Sporadic Creutzfeldt-Jakob disease (sCJD) and genetic CJD (gCJD) share similar demographics and clinical features. However, sCJD patients exhibited more parkinsonism, while gCJD patients showed more widespread brain abnormalities on MRI.
Area of Science:
- Neuroscience
- Neurology
- Genetics
Background:
- Creutzfeldt-Jakob disease (CJD) is a fatal, transmissible neurodegenerative disorder.
- Understanding the distinctions between sporadic CJD (sCJD) and genetic CJD (gCJD) is crucial for diagnosis and research.
Purpose of the Study:
- To compare demographic, clinical, and laboratory data between sCJD and gCJD patients.
- To identify key differences that may aid in differentiating these CJD subtypes.
Main Methods:
- A cohort of 38 CJD patients (28 sCJD, 10 gCJD) underwent cognitive testing, MRI, EEG, and CSF 14-3-3 protein analysis.
- Statistical comparisons were made for various clinical and laboratory parameters.
Main Results:
- sCJD and gCJD patients showed similar onset age, survival times, and initial symptoms.
- Neurological examination revealed more parkinsonism in sCJD patients (p=0.037) and more disinhibition in gCJD patients (p=0.090).
- gCJD patients displayed more widespread cortical abnormalities on MRI compared to sCJD patients (p=0.012).
Conclusions:
- Epidemiological and clinical characteristics of sCJD and gCJD are largely similar.
- Key differentiating features include a higher prevalence of parkinsonism in sCJD and more extensive MRI abnormalities in gCJD.
Objectives:
Creutzfeldt-Jakob disease (CJD) is a transmissible neurodegenerative disorder with a fatal outcome. The present study investigated the difference on demographic, clinical and laboratory data between the patients with sporadic CJD (sCJD) and genetic CJD (gCJD).
Methods:
Thirty-eight patients with CJD were enrolled in this study, including 28 patients with sCJD and 10 patients with gCJD. All patients were administered cognitive tests, brain magnetic resonance imaging (MRI), electroencephalogram (EEG), cerebrospinal fluid (CSF) 14-3-3 protein.
Results:
The patients with sCJD had similar onset age, mean death and survival time to the patients with gCJD. There were slightly more males in the patients with sCJD than in the patients with gCJD (p = 0.095). The percentages of onset symptoms were similar between sCJD and gCJD groups. Patients with sCJD had more parkinsonism than patients with gCJD on neurological examinations (p = 0.037). The patients with gCJD also had slightly more disinhibitation than the patients with sCJD (p = 0.090). There were similar abnormalities percentages on MRI, EEG, and CSF 14-3-3 protein. The gCJD patients had more widespread cortex abnormalities involving the frontal, temporal, parietal and occipital lobe, compared with the sCJD patients (p = 0.012).
Conclusion:
The patients with sCJD had similar epidemiological and clinical characteristics to the patients with gCJD, except more parkinsonism signs and less widespread cortex abnormalities on MRI.
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