Adverse effects of hypertension, supine hypertension, and perivascular space on cognition and motor function in PD

Na Young Shin, Yae Won Park, Sang Won Yoo, Ji Yeon Yoo, Yangsean Choi, Jinhee Jang, Kook Jin Ahn, Bum soo Kim, Joong Seok Kim

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

Dilated perivascular space (dPVS) has recently been reported as a biomarker for cognitive impairment in Parkinson’s disease (PD). However, comprehensive interrelationships between various clinical risk factors, dPVS, white-matter hyperintensities (WMH), cognition, and motor function in PD have not been studied yet. The purpose of this study was to test whether dPVS might mediate the effect of clinical risk factors on WMH, cognition, and motor symptoms in PD patients. A total of 154 PD patients were assessed for vascular risk factors (hypertension, diabetes mellitus, and dyslipidemia), autonomic dysfunction (orthostatic hypotension and supine hypertension [SH]), APOE ε4 genotype, rapid eye movement sleep-behavior disorder, motor symptoms, and cognition status. The degree of dPVS was evaluated in the basal ganglia (BG) and white matter using a 5-point visual scale. Periventricular, deep, and total WMH severity was also assessed. Path analysis was performed to evaluate the associations of these clinical factors and imaging markers with cognitive status and motor symptoms. Hypertension and SH were significantly associated with more severe BGdPVS, which was further associated with higher total WMH, consequently leading to lower cognitive status. More severe BGdPVS was also associated with worse motor symptoms, but without mediation of total WMH. Similar associations were seen when using periventricular WMH as a variable, but not when using deep WMH as a variable. In conclusion, BGdPVS mediates the effect of hypertension and SH on cognitive impairment via total and periventricular WMH, while being directly associated with more severe motor symptoms.

Original languageEnglish
Article number69
Journalnpj Parkinson's Disease
Volume7
Issue number1
DOIs
StatePublished - Dec 2021

Bibliographical note

Funding Information:
This research was supported by the Bio and Medical Technology Development Program of the National Research Foundation (NRF) funded by the Korean Government (NRF-2015M3A9D7067240 and NRF-2020R1C1C1010435).

Publisher Copyright:
© 2021, The Author(s).

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