Early constipation predicts faster dementia onset in Parkinson's disease

Abstract

Acknowledgements We would like to thank all participants and funders of PICC and of the individual cohort studies. Members of PICC Steering Group: Dr. Angus D. Macleod, Dr. Carl E. Counsell, University of Aberdeen (chairperson), UK; Prof. Ole-Bjørn Tysnes, University of Bergen, Norway; Marta Camacho, Dr. Caroline Williams-Gray, University of Cambridge, UK; Dr. Rachael A. Lawson, Newcastle University, UK; Dr. Jodi Maple-Grødem, Prof. Guido Alves, Stavanger University Hospital, Norway; Prof. Lars Forgren, Umeå, Dr. David Backstrom, University, Sweden. We acknowledge the contributions of members of the individual study groups: PICNICS study: Principal investigators: Roger A. Barker, Caroline H. Williams-Gray. Study personnel: Jonathan Evans, Gemma Cummins, David P. Breen, Ruwani Wijeyekoon, Kirsten Scott, Tom Stoker, Julia Greenland, Marta Camacho, Natalie Valle Guzman, Lucy Collins, Simon Stott and Sarah Mason. ParkWest Study: ParkWest Principal investigators: Guido Alves (Norwegian Centre for Movement Disorders, Stavanger University Hospital) and Ole-Bjørn Tysnes (Haukeland University Hospital). Study personnel: Michaela Dreetz Gjerstad, Kenn Freddy Pedersen, Elin Bjelland Forsaa, Veslemøy Hamre Frantzen, Anita Laugaland, Jodi Maple-Grødem, Johannes Lange, Karen Simonsen, Eldbjørg Fiske and Ingvild Dalen, Bernd Müller, Geir Olve Skeie and Marit Renså; Wenche Telstad, Aliaksei Labusau and Jane Kastet; Ineke HogenEsch, Marianne Kjerandsen and Liv Kari Håland; Karen Herlofson, Solgunn Ongre and Siri Bruun. The PICC collaboration was funded by the Chief Scientist Office of the Scottish Government, NHS Education for Scotland, and the Academy of Medical Sciences. The PICNICS study has received funding from the Cure Parkinson's Trust, the Van Geest Foundation, the Medical Research Council (MRC) and Parkinson's UK. This work was also supported by the National Institute for Health Research (NIHR) Cambridge Biomedical Research Centre Dementia and Neurodegeneration Theme (grant no. 146281). The views expressed are those of ...