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Alzheimer’s 3X raises Covid severity, death risk: Study – ET HealthWorld

Publicado em 04 junho 2021

Por IANS

Sao Paulo: People with dementia, significantly Alzheimer’s illness are at threefold danger of dying on account of an infection by SARS-CoV-2, the virus behind Covid-19, in response to a examine by Brazilian researchers.

The danger is six occasions higher if they’re over 80, discovered the crew on the University of Sao Paulo (USP) and Butantan Institute in partnership with colleagues on the Federal University of Rio de Janeiro (UFRJ).

“We found that all causes of dementia are risk factors for severity and death in Covid-19 and that these risks are more pronounced for Alzheimer’s patients,” Sergio Verjovski-Almeida, principal investigator for the mission and a professor at USP’s Chemistry Institute, instructed Agencia FAPESP.

“Some factor that hasn’t yet been identified increases the predisposition of Alzheimer’s patients to progress to severe Covid-19 and die from the viral disease,” Verjovski stated. “The results of our study point to a need for special attention to these patients when hospitalised.”

The findings are revealed in Alzheimer’s & Dementia: The Journal of the Alzheimer’s Association.

For the examine, the researchers investigated information on constructive diagnoses, hospitalisations and deaths from Covid-19 for a cohort of 12,863 sufferers over 65, who examined constructive or adverse for Covid between March and August 2020. They had been labeled into three age teams: 66-74 (6,182), 75-79 (4,867), and 80-86 (1,814).

Statistical evaluation confirmed that every one causes of dementia, particularly Alzheimer’s, had been danger components for severity of the illness and death within the case of hospitalised sufferers, no matter age.

A attainable rationalization is that persistent inflammatory circumstances or faulty immune responses attributable to ageing of the immune system (immunosenescence) could enhance the vulnerability of those sufferers and cut back their capability to mount an efficient response to an infection by the virus.

Another speculation is that Alzheimer’s alters the permeability of the blood-mind barrier, making an infection of the central nervous system extra seemingly, the researchers stated.

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