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- W4309226945 abstract "Abstract Objectiv To assess the associations between gout, brain structure, and neurodegenerative disease incidence. Methods Using observational and Mendelian randomization analyses we investigated causal relationships between gout and brain health. Exposures included gout diagnosis (from self-report, linked health records and death records) and genetically proxied gout and serum urate. Outcomes were neuroimaging markers of brain structure and neurodegenerative disease incidence (ascertained through self-report, health records and death reports). Cox proportional hazards models were used to examine time to neurodegenerative disease diagnosis. Results 11,735 UK Biobank participants (mean age 55.5±8.0 years and 50.5% female) had a diagnosis of gout (n=1165 in MRI subset). Dementia was ascertained in 3126 individuals over a mean follow-up time of 12.4±1.9 years. Gout patients had smaller global and regional brain volumes and higher brain iron markers. Genetic associations mirrored observational associations. Genetically proxied gout associated with lower global grey matter volume (beta= -0.05[-0.08 to -0.01]). Participants with gout had higher incidence of all-cause dementia (hazard ratio (HR)=1.60, 95% confidence interval (CI) [1.38-1.85]), Parkinson’s disease (HR=1.43[1.15 to 1.79]), and probable essential tremor (HR=6.75[5.69 to 8.00]). Risks were strongly time dependent, whereby associations with incident dementia were highest in the first 3 years after gout diagnosis (HR=7.40[4.95 to 11.07]). Conclusions These findings suggest gout is causally related to several measures of brain structure. Lower brain reserve amongst gout patients may explain their higher vulnerability to multiple neurodegenerative diseases. Key points What is already known on this topic? Studies of neurodegenerative disease risk in gout are contradictory. Relationships with neuroimaging markers of brain structure, which may offer insights, are uncertain. What this study adds? In this prospective cohort study gout was associated with smaller brain volumes and higher incidence of multiple neurodegenerative diseases. Mendelian randomization analyses suggested gout is causally related to brain structure. How might this study affect research, practice or policy? Our findings emphasise the importance for clinicians of assessing for motor and cognitive impairments amongst gout patients, particularly in early years after diagnosis." @default.
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- W4309226945 date "2022-11-13" @default.
- W4309226945 modified "2023-09-27" @default.
- W4309226945 title "Association of Gout with Brain Reserve and Vulnerability to Neurodegenerative Disease" @default.
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- W4309226945 doi "https://doi.org/10.1101/2022.11.09.22282119" @default.
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