Research Study

A longitudinal microbiome study in Parkinson's disease
Principal Investigator 
Silke Cresswell


Body Locations and Systems 
Parkinson's Disease
Study Start/End 
Jun 27, 2018 to Jun 30, 2023
UBC Hospital
Adam Yu, Research Coordinator
Email Address
Purpose of Study 

The purpose of this study is to investigate the association between Parkinson's disease and the bacteria and fungi living in the gut and nose over a five year period.

recruitment poster


This is a longitudinal study that involves six study visits over the course of 5 years (visits will be on an annual basis).  Each study visit takes approximately 2.5-3 hours to complete, which will include questionnaires, a clinical assessment of symptoms of Parkinson's disease, a smell test and 3 biological samples: a blood swab, swab of the mouth, and a fecal sample.


Study Coordinators and Research Nurses cannot give medical advice over the phone. Telephone numbers and email addresses are provided for obtaining additional information on specific research studies only. If you have specific questions which require clinical expertise, please call your primary care physician.