This my edited copy of this report from Medscape.
"Investigators found a baseline history of CVD, including transient ischemic attack, congestive heart failure, coronary artery bypass graft, percutaneous transluminal coronary angioplasty, and stent,
but not myocardial infarction or stroke as these were excluded in the parent trial because they affected the response to multivitamins.
As expected, those with CVD had lower cognitive scores at baseline. "But after an initial bump due to practice effect, at year 1, the cardiovascular disease history folks continue to benefit from multivitamins, whereas those who got placebo multivitamins continue to decline over time," said Baker.
Based on information from a baseline scatter plot of cognitive function scores by age, the study's modeling estimated the multivitamin treatment effect had a positive benefit of .028 standard deviations (SD) per year.
"Daily multivitamin-mineral supplementation appears to slow cognitive aging by 60% or by 1.8 years," Baker added.
To date, the effect of MVM supplementation on cognition has been tested in only one large randomized clinical trial — the Physicians Health Study II. That study did not show an effect, but included only older male physicians — and cognitive testing began 2.5 years after randomization, said Baker.
"Our study provides new evidence that daily multivitamin supplementation may benefit cognitive function in older women and men, and the multivitamin effects may be more pronounced in participants with cardiovascular disease."
For effects of multivitamins on Alzheimer's disease prevalence and progression, "stay tuned," Baker concluded.
Following the presentation, session co-chair Suzanne Schindler, MD, PhD, instructor, Department of Neurology, Washington University School of Medicine, St. Louis, Missouri, said she and her colleagues "always check vitamin B12 levels" in patients with memory and cognitive difficulties and wondered if study subjects with a low level or deficiency of vitamin B12 benefited from the intervention.
"We are asking ourselves that as well," said Baker.
"Some of this is a work in progress," Baker added. "We still need to look at that more in-depth to understand whether it might be a mechanism for improvement. I think the results are still out on that topic."
The study received support from the NIH/NIA. Pfizer Consumer Healthcare (now GSK Consumer Healthcare) provided study pills and packaging. Baker has disclosed no relevant financial relationships.
14th Clinical Trials on Alzheimer's Disease (CTAD) conference: Oral Communications (OC) #4. Presented November 10, 2021.
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