Brain-Periphery Interactions in Huntington's Disease: Mediators and Lifestyle Interventions

Area of Science:

• Neuroscience
• Genetics
• Metabolic Disorders

Background:

• Huntington's disease (HD) is characterized by brain pathology, including mutated Huntingtin protein (mHtt) aggregation and neurodegeneration.
• Increasing attention is given to systemic and peripheral deficits in HD, which may influence disease progression and brain pathology.
• While metabolic and organ-specific issues are known, mediators of impaired inter-organ communication in HD remain under-characterized.

Purpose of the Study:

• To identify potential mediators of compromised inter-organ communication in Huntington's disease.
• To assess the risks and potentials of lifestyle interventions, specifically dietary strategies and exercise, for improving inter-organ communication axes in HD.

Main Methods:

• Exploratory literature search to identify mediators of impaired inter-organ communication in HD.
• Analysis of findings related to inflammatory factors, circulating mHtt, hormones, lipids, and RNAs.
• Assessment of lifestyle interventions targeting gut-brain and muscle-brain axes.

Main Results:

• Dysregulation of inflammatory factors, circulating mHtt, hormones, lipids, and RNAs suggests impaired inter-organ communication in HD.
• Evidence indicates compromised gut-brain and muscle-brain axes in the context of HD.
• Lifestyle interventions show potential for improving these communication pathways.

Conclusions:

• Appropriate lifestyle interventions, including diet and exercise, hold significant potential to alleviate HD symptoms and modify disease progression.
• Improving inter-organ signaling through lifestyle changes may be a key mechanism in managing HD.
• Careful design of dietary and exercise programs is crucial, considering the impaired systemic metabolism and peripheral symptoms in individuals with HD.