Analysis of the Enteric Nervous System Using Colonic Biopsies

Exclusion Criteria

• •Patients
• •Colonic disorder (except non-complicated diverticular disease)
• •Other neurological disorder than parkinsonism
• •Patients treated with either platelet antiaggregants, anticoagulants or with a known coagulation disorder
• •Patients with a cognitive impairment that preclude them from understanding the informed consent
• •Patients placed under legal guardianship
• •Controls
• •Neurodegenerative disorders such as Parkinson's disease, Alzheimer's disease or other dementia, amyotrophic lateral sclerosis...
• •Functional bowel disorder such as irritable bowel syndrome
• •Patients with a cognitive impairment that preclude them from understanding the informed consent