Genetic Insights Into Cathepsins and Neurodegenerative Diseases
Author Information
Author(s): Jiang Yanhong, Fan Wenhui, Li Yaxin, Xue Hua
Primary Institution: Department of Neurology Sichuan Taikang Hospital Chengdu Sichuan China
Hypothesis
Do genetically predicted levels of cathepsins have a causal effect on Alzheimer's disease, Parkinson's disease, and amyotrophic lateral sclerosis?
Conclusion
Elevated cathepsin H levels increase the risk of Alzheimer's disease, while elevated cathepsin B levels decrease the risk of Parkinson's disease.
Supporting Evidence
- Cathepsin H levels are linked to an increased risk of Alzheimer's disease.
- Cathepsin B levels are associated with a decreased risk of Parkinson's disease.
- No causal link was found between cathepsins and amyotrophic lateral sclerosis.
Takeaway
This study found that higher levels of a protein called cathepsin H can make you more likely to get Alzheimer's, while higher levels of cathepsin B can help protect against Parkinson's.
Methodology
A two-sample bidirectional Mendelian randomization study using publicly available GWAS data.
Potential Biases
Potential biases from the limited number of genetic variants used as instrumental variables.
Limitations
The study only included individuals of European ancestry, which may limit the generalizability of the findings.
Participant Demographics
Individuals of European ancestry.
Statistical Information
P-Value
0.005
Confidence Interval
1.011–1.069
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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