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    Home > Active Ingredient News > Study of Nervous System > Suddenly diagnosed with mild cognitive impairment? Maybe your BMI was "sprinkled" 7 years ago!

    Suddenly diagnosed with mild cognitive impairment? Maybe your BMI was "sprinkled" 7 years ago!

    • Last Update: 2023-01-06
    • Source: Internet
    • Author: User
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    *For medical professionals


    only, what's going on?




    Executive Summary


    A study published October 26 in JAMA Psychiatry showed that significant reductions in body mass index (BMI) occurred about 7 years
    before the diagnosis of mild cognitive impairment (MCI).

    Study screenshots

    status quo


    Jie Guo, MPH and colleagues from Karolinska Institute in Stockholm assessed long-term BMI trajectories
    prior to MCI and dementia events.

    conclusion


    The study included cognitively intact participants aged 60-90 years at baseline, with 1390 participants eventually enrolled in the study
    .
    Annual follow-up (maximum follow-up 22 years)
    was conducted from October 1997 to December 2020.
    During the follow-up visit, some participants underwent brain autopsies (cadavers).


    It turned out that:


    • In the BMI trajectory analysis before MCI (n=939), a total of 371 participants (39.
      5%) developed MCI during follow-up, of which 88 (23.
      7%) developed dementia
      .

    • Patients with MCI were older [mean (SD) age, 79.
      6 (5.
      9) years vs 76.
      9 (6.
      6) years], consumed less alcohol, had a lower BMI, and were mostly ε4 carriers
      .

    • Patients with dementia were older [mean (SD) age, 81.
      0 (5.
      2) years versus 79.
      1 (6.
      0 years)], had lower levels of physical activity [median (IQR) activity, 1.
      0 h/week to 1.
      8 h/week], and were more likely to be APOEε4 carriers than those without dementia
      .

    • In participants who developed MCI, BMI tended to decline
      earlier and faster compared to cognitively intact participants.

    • From 7 years before diagnosis, BMI was significantly reduced
      in patients with MCI.

    • In people who developed MCI, the slope of BMI decline did not differ significantly between those who developed and those who did not develop dementia
      .

    • In pre-autopsy BMI trajectory analysis (n=358), rapid decline in BMI was associated with
      participants at high risk of Alzheimer's disease pathology worldwide.

    prospect


    Jie Guo said: "
    Our findings suggest that high levels of Alzheimer's disease pathology or cerebrovascular disease pathology may be associated with
    a decrease in BMI prior to MCI.

    Future imaging studies (e.
    g.
    , using positron emission tomography) are necessary to elucidate the temporal association
    between BMI changes and brain pathology.



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