Air pollution may contribute to mental decline and dementia



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## Air pollution may contribute to mental decline and dementia UJI researcher Juana María Delgado-Saborit has participated in the elaboration of the report of the Committee of Medical Effects of Air Pollution of the United Kingdom

01/08/2022 |
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* [![ informe-contaminacio-demencia Juana_Maria_Delgado_20DLL26_w](/com/investigacio/arxiu/noticies/2022/7/informe-contaminacio-demencia/Juana_Maria_Delgado_20DLL26_w.jpg)](#)

Juana María Delgado-Saborit, researcher of the GenT programme of excellence at the Universitat Jaume I, has been part of the team of experts who have prepared the official report of the Committee of Medical Effects of Air Pollution (COMEAP) of the United Kingdom, recently published by the Health Security Agency, which analyses the relationship between exposure to air pollution and cognitive impairment and the incidence of dementia.

Specifically, the UJI researcher has been responsible for the review of the epidemiological literature on this topic together with several experts from the University of Exeter, University College London, University of Bristol, Queen Mary University of London, University of Southampton, Imperial College London and the UK Health Security Agency.

The report, entitled [*Cognitive decline, dementia and air pollution*](https://www.gov.uk/government/publications/air-pollution-cognitive-decline-and-dementia), reviewed nearly 70 epidemiological studies examining the possible link between air pollution and declining mental ability and dementia in older people. In addition, studies on how air pollution may affect the brain have been considered.

From this review, the report concludes that air pollution is likely to contribute to mental decline and dementia caused by effects on blood vessels. "This type of pollution, especially small particulate matter, can affect the heart and circulatory system, including the circulation of the brain. These effects are linked to one form of dementia, vascular dementia, caused by damage to blood vessels in the brain," the report says.

The COMEAP has not made recommendations on how to estimate the effects of air pollution on the incidence of dementia, as they do not consider it possible to combine the results of currently available studies to establish an estimate of the links between pollutants and dementia. For this reason, a number of recommendations have been made for further research along these lines.

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