A growing body of observational studies and Mendelian Randomisation analyses suggest an increased risk of Alzheimer's disease and dementia following COVID-19 infection. However, evidence on the potential association between COVID-19 and vascular dementia, which is plausible given the vascular complications of COVID-19 infection, is still limited. In this study, we conducted a two-sample Mendelian Randomisation analysis to examine the potential causal relationship between COVID-19 phenotypes and the risk of vascular dementia, using summary data from large-scale GWASs. The two-sample Mendelian Randomisation analysis did not detect any significant associations of COVID-19 infection, COVID-19 hospitalisation, or critical COVID-19 with the risk of vascular dementia, with weighted average β values of -0.29 (95% CI: -0.84, 0.26; = 0.301), -0.12 (95% CI: -0.36, 0.13; = 0.345), and -0.07 (95% CI: -0.23, 0.09; = 0.374), respectively. Our findings do not support the hypothesis that vascular dementia is one of the long-term sequelae of COVID-19.
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http://dx.doi.org/10.3390/bs14060465 | DOI Listing |
Am J Geriatr Psychiatry
February 2025
Department of Psychiatry (AJCS, EJG), Leiden University Medical Center, Leiden, The Netherlands; Health Campus The Hague (EJG), Department of Public Health & Primary Care, Leiden University Medical Center, Leiden, The Netherlands. Electronic address:
Background: The prevalence of depressive symptoms, apathy, and cognitive decline increases with age. Understanding the temporal dynamics of these symptoms could provide valuable insights into the early stages of cognitive decline, allowing for more timely and effective treatment and management.
Methods: Participants from the Prevention of Dementia by Intensive Vascular Care (preDIVA) trial cohort with baseline and ≥3 follow-up measurements were included, with a median of 7.
Am J Med
March 2025
Alzheimer Scotland Centre for Policy and Practice, University of the West of Scotland, Paisley, UK.
Introduction: Considering the globally growing population and the rising incidence of dementia, it is important to understand the proportion of dementia cases affected by vascular brain disease. We aimed to study the incidence of vascular dementia (VD) and other dementias in a defined population in Finland to better understand VD's contribution to the total incidence of dementias and to assess the sensitivity of their diagnostics.
Methods: We aimed to collect all dementia diagnoses made in Northern Savo, Finland, in 2020.
Gen Psychiatr
March 2025
Department of Geriatric Psychiatry, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Background: As the population in China rapidly ages, the prevalence of mild cognitive impairment (MCI) is increasing considerably. However, the causes of MCI vary. The continued lack of understanding of the various subtypes of MCI impedes the implementation of effective measures to reduce the risk of advancing to more severe cognitive diseases.
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February 2025
Yunnan Key Laboratory of Dai and Yi Medicines, Yunnan University of Chinese Medicine, Kunming, Yunnan, China.
Introduction: Vascular dementia (VD) is a neurodegenerative disease caused by chronic cerebral hypoperfusion (CCH), which considerably impact patients' quality of life. Ethanol extraction from (RY-A) has gained attention for its potential neuroprotective effects, but its effects and mechanisms of action on CCH are unknown.
Methods: After 30 days of RY-A gavage treatment in a CCH rat model, its effects were evaluated using the Morris water maze test, cerebral blood flow measurements, and HE staining of the brain.
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