tldrdailynews.com logo
Tag

P Tau217

All articles tagged with #p tau217

Alzheimer’s prevention trial targets healthy adults to stop dementia before symptoms
health1 month ago

Alzheimer’s prevention trial targets healthy adults to stop dementia before symptoms

A UK-led Phase III study called PrevenTRON will test Roche’s drug Trontinemab in about 1,600 people aged 55–80 who have elevated p-tau217, a biomarker predicting cognitive decline, to see if treating before memory loss begins can prevent dementia. Participants will undergo memory screening and biomarker testing, then be randomized to Trontinemab or placebo for 4–6 years, with the goal of shifting focus from cure to prevention of Alzheimer’s disease.

via The Guardian|
#alzheimers-prevention#clinical-trial#health
A Decade Ahead: Blood Marker Flags Alzheimer’s Risk, But No Cure Yet
health2 months ago

A Decade Ahead: Blood Marker Flags Alzheimer’s Risk, But No Cure Yet

A large study of 2,684 older adults found that higher levels of the blood protein p-tau217 may predict Alzheimer’s risk up to a decade before symptoms, with about a 38% chance of cognitive impairment in five years and up to 78% in ten years for those with the highest levels. However, FDA clearance for p-tau217 tests currently covers only 55+ individuals with existing memory problems, and the test is used as a research tool rather than a clinical predictor for healthy people. While it can help identify candidates for drug trials and accelerate prevention research, there is no proven treatment to prevent Alzheimer’s yet; in the meantime, lifestyle factors like exercise, diet, sleep, and mental engagement remain the best available defense.

via Money Talks News|
#alzheimers#biomarkers#early-detection
Blood Biomarker Signals Alzheimer’s Risk Years Before Symptoms
health2 months ago

Blood Biomarker Signals Alzheimer’s Risk Years Before Symptoms

A multi-cohort study shows baseline blood levels of p-tau217 predict future cognitive impairment in cognitively unimpaired older adults, with a 38% absolute risk at 5 years and 78% at 10 years, independent of amyloid PET or APOE4 status; current guidance cautions against routine use in asymptomatic individuals since no disease-modifying therapies exist, but the test can rapidly identify high-risk candidates for prevention trials and could eventually become a standard screening tool like cholesterol tests.

via Neuroscience News|
#alzheimers-disease#biomarkers#health
Blood Biomarker Signals Alzheimer’s Risk in Healthy Older Adults
health2 months ago

Blood Biomarker Signals Alzheimer’s Risk in Healthy Older Adults

A study using a p-tau217 blood test found that symptom-free older adults with very high levels have a 38% five-year and 78% ten-year risk of developing cognitive impairment, suggesting a potential way to speed Alzheimer’s drug trials, but experts warn it isn’t precise enough for individual prognosis and testing should be approached cautiously.

via New York Post|
#aging#alzheimers-disease#biomarkers
Low Red Blood Cell Count Raises Dementia Risk by 66% in Seniors
health5 months ago

Low Red Blood Cell Count Raises Dementia Risk by 66% in Seniors

A Swedish study found anemia in adults over 65 is linked to a 66% higher risk of developing dementia, with anemia also associated with Alzheimer’s biomarkers like p-tau217. The findings suggest reduced brain oxygen could contribute to neurodegeneration, but it’s unclear if treating anemia lowers dementia risk. Anemia is common and treatable via diet and medical guidance, and doctors may consider more proactive management, especially since participants averaged about 72 years old.

via New York Post|
#alzheimers-disease#anemia#dementia
Biomarker may flag dementia risk for certain menopause hormone therapies
health6 months ago

Biomarker may flag dementia risk for certain menopause hormone therapies

New analysis of WHI data finds that higher baseline plasma p-tau217, an Alzheimer's biomarker, is linked to a substantially higher dementia risk, especially for women on combined estrogen–progesterone therapy started later in life; estrogen-only therapy did not show the same pattern. The risk was strongest among women over 70, white women, and APOE4 carriers, suggesting hormone interactions with brain vulnerability rather than a direct cause. Starting combined hormone therapy around menopause for five years or less generally does not raise dementia risk, but starting after 65 may for some women. Biomarkers like p-tau217 could help identify who is most at risk.

via The Conversation|
#apoe4#dementia#health
Blood biomarker p-tau217 signals dementia risk in women decades before symptoms
health7 months ago

Blood biomarker p-tau217 signals dementia risk in women decades before symptoms

A long-term study of 2,766 cognitively healthy women found higher blood levels of p-tau217 predict an increased risk of developing dementia or mild cognitive impairment over up to 25 years, suggesting a blood test could help identify those at greatest risk years before symptoms, though it is not deterministic and results vary by race, hormone therapy use, and age; more research is needed before public screening.

via ScienceAlert|
#biomarker#blood-test#dementia
Blood biomarker p-tau217 signals dementia risk decades ahead, UCSD study finds
health7 months ago

Blood biomarker p-tau217 signals dementia risk decades ahead, UCSD study finds

A UC San Diego–led study analyzed archived blood samples from the Women’s Health Initiative Memory Study and found that higher levels of the brain protein p-tau217 in cognitively healthy women predicted dementia or mild cognitive impairment up to 25 years later. Published in JAMA Network Open, the finding suggests a simple blood test could identify future dementia risk long before symptoms, enabling earlier lifestyle interventions and more targeted trial recruitment. The study involved only women, with ongoing work to understand modifiable risk factors and whether results apply to men.

via San Diego Union-Tribune|
#biomarker#blood-test#dementia
Blood Test Signals Alzheimer's Onset Years Before Symptoms
science7 months ago

Blood Test Signals Alzheimer's Onset Years Before Symptoms

A blood biomarker, p-tau217, tracks brain Alzheimer’s pathology and, in a study of 603 older adults, could estimate how many years remain before symptoms appear. This could enable earlier diagnosis and shorter, cheaper preventive trials, though it isn’t yet recommended for general asymptomatic screening. The researchers hint at improving accuracy by combining p-tau217 with other biomarkers and note a web tool and GitHub code for broader exploration.

via Hackaday|
#alzheimers#biomarkers#blood-test
Blood biomarker could forecast dementia risk decades ahead in older women.
health7 months ago

Blood biomarker could forecast dementia risk decades ahead in older women.

A UC San Diego-led study of 2,766 women aged 65–79 from the Women’s Health Initiative Memory Study found that higher blood levels of the biomarker p-tau217 are strongly linked to future dementia and mild cognitive impairment, suggesting a simple blood test could identify those at greatest risk up to 25 years before symptoms. While promising for early prevention and monitoring, blood-based testing for Alzheimer's is not yet recommended for routine screening, and results may not apply to men or younger populations.

via Fox News|
#alzheimers-disease#biomarkers#blood-test
Blood Biomarker Could Flag Dementia Risk Decades Ahead in Women
health7 months ago

Blood Biomarker Could Flag Dementia Risk Decades Ahead in Women

A UC San Diego study of over 2,500 women found that higher blood levels of the biomarker p-tau217 can predict future dementia risk up to 25 years before symptoms, with stronger links in women over 70, those with Alzheimer’s genetic risk, or on estrogen-progestin therapy; while promising, more studies are needed and it isn’t yet ready for routine clinical use, but could guide prevention trials.

via Gizmodo|
#alzheimers-disease#biomarker#blood-test
Shared Trait Found in Newborns and Alzheimer’s Patients
science1 year ago

Shared Trait Found in Newborns and Alzheimer’s Patients

A recent study reveals that both newborns and Alzheimer's patients have elevated levels of the brain protein p-tau217, which plays different roles in each group—supporting healthy brain development in infants and indicating neurodegeneration in Alzheimer's. The findings suggest that understanding how the healthy brain manages tau could lead to new treatments for Alzheimer's disease.

via SciTechDaily|
#alzheimers#biomarker#brain-development
Alzheimer’s-Linked Protein Detected in Newborns, Offering New Hope
health1 year ago

Alzheimer’s-Linked Protein Detected in Newborns, Offering New Hope

A study found that healthy newborns have higher levels of the Alzheimer’s-linked protein p-tau217 than dementia patients, suggesting this protein plays a crucial role in early brain development rather than solely causing neurodegeneration. This discovery challenges existing beliefs about tau proteins and could lead to new approaches in treating or preventing Alzheimer’s disease by understanding how infant brains manage high tau levels safely.

via The Conversation|
#alzheimers#brain-development#dementia