HomeDermatologyDermatology NewsLink between psoriasis and dementia has been examined

Link between psoriasis and dementia has been examined

A study published in the Journal of the American Academy of Dermatology investigated whether or not patients recognized with psoriasis could be at a higher risk of dementia than those without psoriasis.1

The research goal was to check cognition, magnetic resonance imaging (MRI)-markers, and dementia risk in psoriasis and nonpsoriasis patients in a Rotterdam study. The query was requested as many psoriasis patients have cardiometabolic comorbidities, irritation, and overlap in genetics with Alzheimer ailments referring that they could be at risk for cognitive dysfunction and dementia.


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Overall, the study evaluated 318 patients with psoriasis and 9,678 patients without psoriasis with a mean age of 66 years while 58% were recognized as females. Linear and logistic regression were used to examine mind harm in psoriasis patients based mostly on cognitive operate, delicate cognitive impairment, and MRI-markers. The dementia risk was calculated utilizing Cox regression while models were adjusted for age, intercourse, schooling, and cardiovascular risk elements.

The outcomes indicated that cognitive test scores and volumetric, microstructural, and focal measures on brain MRI weren’t totally different between psoriasis and nonpsoriasis patients. Additionally, the psoriasis patients weren’t related to delicate cognitive impairment (adjusted odd ratio 0.87, 95% confidence interval 0.53-1.43).

“Throughout 115.000 person-years of follow-up, 810 incident dementia circumstances (15 among psoriasis patients) occurred,” wrote study authors.

Overall, it was found that psoriasis was related to a decreased risk of creating dementia after adjusting for confounders.

Additionally, outcomes of this population-based study didn’t find any evidence that psoriasis was related to preclinical markers or a higher risk of dementia.

“Preclinical markers of dementia are comparable between psoriasis and nonpsoriasis participants,” the authors wrote.2 “The primary outcomes associated with dementia present no increased and even perhaps a protecting impact of psoriasis on dementia danger, though ongoing follow-up in the Rotterdam Study will enable us to more precisely examine the ultimate final result of dementia.”


1. Pezzolo E, Mutlu U, Vernooij MW, et al. Psoriasis is not associated with cognition, brain imaging markers, and risk for dementia: The Rotterdam Study. Journal of the American Academy of Dermatology. 2021;85(3):671-680. doi:10.1016/j.jaad.2018.07.046

2. Psoriasis not linked to preclinical markers of dementia – drugs. Com mednews. Drugs.com. Published September 7, 2021. Accessed September 8, 2021. https://consumer.healthday.com/psoriasis-not-linked-to-preclinical-markers-of-dementia-2654910286.html

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