Olive Oil and Alzheimer's

[agoodwinsmith]

So this is a news article about a presentation at a conference, and the research in the presentation hasn't been published yet.

The conference was Nutrition 2023 in Boston, held by the American Society for Nutrition:
https://nutrition2023.eventscribe.net/agenda.asp

The presentation was by Anne-Julie Tessier, a Research Fellow at the Harvard School of Public Health:
https://www.hsph.harvard.edu/profile/anne-julie-tessier/

The presentation was part of the Postdoctoral Research Award Competition on Friday between 10:00 am and 11:30 am. The winner is not yet listed.

Here is the article where I found the information:
https://www.msn.com/en-ca/health/nutrition/a-way-to-reduce-risk-of-dementia-study-suggests-swapping-margarine-for-olive-oil/ar-AA1ej4iY?ocid=msedgntp&cvid=65fb2f2f9f974a139390243268ce6259&ei=7

These three quotes will give you the gist:

"Comparing olive oil enthusiasts to those who rarely used it, the researchers discovered that those consuming more than half a tablespoon of olive oil daily had a 28% reduced risk of dementia-related mortality."

"While olive oil's positive impact on cardiovascular health has been previously observed, Tessier's team found that improved cardiovascular health did not entirely explain the link between olive oil and a lower risk of dementia in the study participants."

"However, the study does not offer a definitive explanation for the "why" or the "how" behind the observed effects."

So, early days, and I don't know about you, but I find that olive oil drips off my toast, however cooking and salads are less edible stress.

Comments

[jessie_c]

You can always dip the toast in an olive oil/balsamic vinegar mix. It tastes pretty goodish.

[agoodwinsmith]

Tasty - but drippy. ;)

[jessie_c]

That's why you need to eat it quickly :P

Abstract

[agoodwinsmith]

If you drill down into the presentation title "Postdoctoral Research Award Competition", you get this:

(PTFS07-03-23) Olive Oil Intake and Fatal Dementia Risk in Two Large Prospective U.S. Cohort Studies

Objectives: Evidence supports a beneficial role for olive oil in cardiovascular health, mortality, and potentially cognition. Whether olive oil intake is related to dementia mortality risk has never been studied. We examined the association of total olive oil intake with subsequent risk of fatal dementia in US adults.

Methods: The population included 60,582 women (Nurses’ Health Study, NHS; 1990-2018) and 31,801 men (Health Professionals’ Follow-Up Study, HPFS; 1990-2018) free of cardiovascular disease and cancer at baseline. Fatal dementia was ascertained from death records. APOE ε4 genotype was measured in DNA from blood or buccal cells in a subsample (n=19,942). Diet was evaluated using a semiquantitative food frequency questionnaire every 4 y and diet quality using the Alternative Healthy Eating Index (AHEI; score 0-110). Prospective risk associations were estimated using multivariable-adjusted Cox proportional-hazards models.

Results: At baseline in 1990, mean age was 56 ± 8 y, olive oil intake was 1.6 ± 0.8 g/d and AHEI was 53.9 ± 10.3. Over 28 y of follow-up, 4,749 dementia deaths occurred. Individuals who died of dementia were more likely to be APOE ε4 carriers (5.1% vs. 1.5% homozygous in non-cases; 36% vs. 23% heterozygous in non-cases; X2 p< 0.001). Consuming >0.5 tbsp/d ( >7 g/d) of olive oil was associated with 25% lower risk of fatal dementia (adjusted pooled hazard ratio [HR]: 0.75, 95% confidence interval [CI]: 0.67-0.85) compared with never or rarely consuming olive oil; results were consistent after further adjusting for APOE ε4. No interaction of olive intake with diet quality on fatal dementia risk was found. In substitution analyses, replacing 5 g/d of margarine and mayonnaise with the equivalent amount of olive oil was associated with 5-12% lower risk of fatal dementia. Substitutions of other vegetable oils or butter were not significant.

Conclusions: In US adults, higher olive oil intake was associated with a moderately lower risk of fatal dementia, irrespective of diet quality. Increasing olive oil intake in place of margarine and mayonnaise represents a potential strategy to reduce dementia mortality risk.

Funding Sources: National Institute of Aging R21 (MGF), Canadian Institutes of Health Research Fellowship Award (AJT)

And this is the link for the above:
https://nutrition2023.eventscribe.net/agenda.asp?startdate=7/22/2023&enddate=7/22/2023&BCFO=M&pfp=Browse%20by%20Day&mode=&fa=&fb=&fc=&fd=

Re: Abstract

[jessie_c]

This caught my eye: Increasing olive oil intake in place of margarine and mayonnaise represents a potential strategy to reduce dementia mortality risk.
I wonder what effect eating margarine and mayonnaise made with olive oil has?