Gastrointestinal dysfunction in the synucleinopathies.

Area of Science:

• Neuroscience
• Gastroenterology
• Neurology

Background:

• Gastrointestinal (GI) dysfunction is a prevalent non-motor symptom in Parkinson's disease (PD).
• Research into GI dysfunction in PD has significantly increased over the last 30 years.
• GI dysfunction in other synucleinopathies is less studied but gaining attention.

Purpose of the Study:

• To review current knowledge on the pathophysiology of GI dysfunction in PD and synucleinopathies.
• To address controversies and identify knowledge gaps in this field.
• To focus on clinical challenges including saliva management, swallowing, gastric emptying, and bowel function.

Main Methods:

• Literature review of existing research on GI dysfunction in PD and synucleinopathies.
• Synthesis of information regarding pathophysiology and clinical manifestations.
• Identification of areas requiring further investigation.

Main Results:

• Extensive research has elucidated aspects of GI dysfunction in PD.
• Growing evidence suggests similar GI issues in other synucleinopathies.
• Key clinical problems include difficulties with saliva, swallowing, gastric emptying, and bowel movements.

Conclusions:

• Understanding the pathophysiology of GI dysfunction is crucial for managing PD and synucleinopathies.
• Further research is needed to address controversies and fill knowledge gaps.
• Clinical interventions for GI symptoms significantly impact patient quality of life.