Blood test marker p-tau217 helps detect early dementia risk in cognitively healthy older women
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 Scientists show gut bacteria can reach the brain in mice and reveal a potential vagus nerve pathwayScientists show gut bacteria can reach the brain in mice and reveal a potential vagus nerve pathway
 
Researchers found that very small numbers of gut bacteria can translocate to the brain in mice, particularly when gut barrier permeability increases due to a Paigen diet. Evidence suggests the vagus nerve may serve as a partial route for this gut-to-brain microbial movement.
 
 
 Blood test marker p-tau217 helps detect early dementia risk in cognitively healthy older womenBlood test marker p-tau217 helps detect early dementia risk in cognitively healthy older women
 
A long-term study of 2,766 women in the Women’s Health Initiative Memory Study found that higher baseline plasma p-tau217 levels were associated with a greater risk of developing mild cognitive impairment or probable dementia.
 
   Blood protein structure changes may enable earlier detection of Alzheimer’sBlood protein structure changes may enable earlier detection of Alzheimer’s
 
Advanced proteomics and AI reveal blood protein changes, offering insights into early Alzheimer's detection and differentiation from mild cognitive impairment.
 
   Gut microbes may drive memory decline during aging by disrupting vagal brain signalingGut microbes may drive memory decline during aging by disrupting vagal brain signaling
 
Researchers identified in mice a microbiome–gut–brain pathway in which age-associated changes in gut microbes increase medium-chain fatty acids that impair vagal sensory signaling and hippocampal activity. These interoceptive disruptions weaken memory formation, revealing a microbial mechanism that contributes to cognitive decline during aging.
 
 Blood marker linked to Alzheimer’s also found in systemic amyloidosis
 
Blood marker linked to Alzheimer’s also found in systemic amyloidosisA certain blood protein regarded as an early indicator of Alzheimer's disease also appears to play a role in other disorders.
 
 
 Stress hormones disrupt the internal GPS system of the brain
 
Stress hormones disrupt the internal GPS system of the brainPersons under stress may have a harder time spatially orienting themselves. Researchers in Bochum have discovered why.
 
 
 Shingles vaccine linked to lower risk of serious cardiac events
 
Shingles vaccine linked to lower risk of serious cardiac eventsPeople with heart disease who received a shingles vaccine had nearly half the rate of serious cardiac events a year later compared with those who did not get the vaccine, according to a study being presented at the American College of Cardiology's Annual Scientific Session (ACC.26).
 
 
 Everyday wearable data could reveal early brain health signals
 
Everyday wearable data could reveal early brain health signalsWearable sensors combined with AI offer a novel approach to continuous monitoring of cognitive and emotional health, detecting early changes in brain function.
 
 
 Blood pressure readings may help identify future dementia risk
 
Blood pressure readings may help identify future dementia riskMeasures of blood vessel health derived from routine blood pressure readings may help identify adults at increased risk for dementia, according to research being presented at the American College of Cardiology's Annual Scientific Session (ACC.26).
 
 
 Gene mutation that aids high-altitude survival could repair myelin sheath damage
 
A genetic mutation that helps animals like yaks and Tibetan antelopes survive at high altitudes may hold the key to repairing nerve damage in conditions such as cerebral paralysis and multiple sclerosis (MS).
 
 
 Prior flu exposure may weaken the immune response to other strains
 
Prior exposure to one strain of influenza virus may weaken children's ability to mount an effective antibody response against their subsequent exposure to a different flu strain, according to a study led by Weill Cornell Medicine investigators.
 
 
 New method creates longer lasting CAR T cells for cancer therapy
 
A research team led by Albert Einstein College of Medicine scientists has developed a new strategy to engineer immune cells that dramatically prolongs their effectiveness after being infused into patients to fight cancer and HIV, addressing a major limitation of current treatments.
 
 
 Structured exercise helps chemotherapy patients maintain cognitive function and mental clarity
 
New research in the March 2026 issue of JNCCN-Journal of the National Comprehensive Cancer Network suggests that exercise may help people with cancer stay mentally sharp and better able to handle daily tasks, work, and social activities through chemotherapy treatment delivered on an every two-week cycle.
 
 
 New study identifies specific brain cells most vulnerable to ALS and dementia
 
Amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD) belong to a spectrum of neurodegenerative diseases with overlapping symptoms, characterized by muscle wasting, paralysis, dementia, and other serious impairments.
 
 
 Using blood proteins to make living brains transparent
 
Making a living brain transparent and watching its neurons fire without disturbing their function-sounds like science fiction, doesn't it? Yet the solution may already exist within our own bodies.
 
 
 Alcohol consumption in early adulthood linked to middle age cognitive decline
 
It's well known that alcohol consumption is an age-old method for coping with stress. But surprising? research led by the University of Massachusetts Amherst found that, when such self-medication begins in early adulthood, negative cognitive effects start to show up in middle-age-even after long periods of total abstinence.
 
 
 How the aging gastrointestinal tract drives age-related cognitive decline
 
We become forgetful as we age. This is often seen as a universal truth, but in fact it is far from universal: some people remain incredibly sharp at 100 years old, while others experience memory loss starting in middle age.
 
 
 Medicare Advantage ‘dark money’ group attempts to win higher payments for insurance companies
 
Judging by more than 16,400 comments recently posted on a federal government website, you'd think there was a groundswell of older Americans demanding that federal officials hike payments to their Medicare Advantage health insurance plans.
 
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