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2 clusters · 4 sources · 6 days · First seen · Last updated

Dementia research in Bolivian Amazon indigenous groups

Overview

Research published in ‘Alzheimer’s & Dementia’ regarding the Tsimané and Mosetén indigenous communities in the Bolivian Amazon has challenged the notion that these groups possess biological immunity to dementia. While the observed prevalence of the condition is low—approximately 1% to 2%—studies suggest this is due to high mortality rates among those symptomatic rather than inherent resistance.

Researchers monitoring 730 adults found that individuals who developed dementia faced a mortality risk six times higher than those with normal cognition. This is significantly higher than the two-to-threefold mortality increase seen in industrialized societies. The findings indicate that while these communities maintain high vascular health through subsistence lifestyles, the incidence of new dementia cases as individuals age remains similar to Western urban populations, with advanced age and the APOE-e4 genetic variant serving as primary risk factors.

Entities

Mosetén · Arizona State University · Amazon Basin · Tsimane · Alzheimer’s & Dementia

Timeline

  1. about 15 hours ago

    [HEALTH] 2 sources
    Dementia prevalence low among Bolivian Amazon indigenous groups

    A study of Tsimané and Mosetén indigenous groups in the Bolivian Amazon shows low dementia prevalence (under 2%), partly due to a significantly higher mortality rate among those diagnosed.

  2. 6 days ago

    [HEALTH] 2 sources
    Bolivian Amazon study clarifies dementia rates in indigenous communities

    A study of Tsimané and Mosetén communities in the Bolivian Amazon reveals that low dementia rates are due to lower survival after symptom onset rather than biological immunity to the disease.

Sources

agorarn.com.br · muynegociosyeconomia.es · ng.24.hu · nsctotal.com.br