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Blood Test

All articles tagged with #blood test

Blood test may diagnose endometriosis without surgery, study finds
health4 days ago

Blood test may diagnose endometriosis without surgery, study finds

Edinburgh researchers identified a distinct blood androgen profile in women with endometriosis, enabling correct identification of the condition in over 95% of cases in a small study; this could lead to a non-surgical diagnostic blood test, but requires validation in larger, more diverse populations and comparison with other hormonal conditions; industry partners are sought to develop the test, and researchers hope it could shorten diagnosis times that currently average more than a decade in Scotland.

via BBC|
#androgens#blood-test#diagnosis
ACS Expands Colon Cancer Screening With Blood and At-Home Stool Tests
health1 month ago

ACS Expands Colon Cancer Screening With Blood and At-Home Stool Tests

The American Cancer Society updated its colon cancer screening recommendations to include three newer options: two enhanced at-home stool tests (Cologuard Plus and ColoSense) that look for tumor DNA/RNA in stool, and a blood test (Shield) detecting cancer DNA in blood. The goal is to boost screening rates among adults 45–75 by offering more convenient options; stool tests are recommended every three years, the blood test at routine medical visits, and follow-up colonoscopy is still required if any test is positive. Colonoscopy remains the most effective method for detecting polyps and preventing cancer, but these tests provide additional access points and can reduce delays in screening. Insurance coverage varies by plan.

via Business Insider|
#blood-test#cologuard-plus#colon-cancer-screening
Multi-Cancer Blood Tests: Promise Hangs in the Balance
health2 months ago

Multi-Cancer Blood Tests: Promise Hangs in the Balance

Researchers are pursuing multi-cancer blood tests using DNA fragments and AI, with early signals like Mercury showing notable sensitivity across several cancers. Yet the largest Galleri trial did not reduce advanced cancer diagnoses or provide clear survival benefits, and test accuracy varies by cancer type. Experts say a universal one-test solution is unlikely; a portfolio of targeted tests and longer follow-up to prove life-saving value and enable insurer coverage is more plausible before routine use.

via NBC News|
#blood-test#cancer#galleri
Blood Test pTau217 Signals Alzheimer's Risk Years Before Symptoms
health2 months ago

Blood Test pTau217 Signals Alzheimer's Risk Years Before Symptoms

A study of 317 cognitively healthy adults over about eight years shows that the blood biomarker pTau217 tracks brain amyloid and tau buildup and can predict future Alzheimer's pathology years before signs appear, potentially matching or prefiguring PET scans. While promising, researchers caution that more diverse data and validation are needed before clinical use, and not all biomarker-positive individuals progress to dementia.

via ScienceAlert|
#alzheimers-disease#biomarkers#blood-test
Blood Test Signals Dementia Risk Decades Before Onset
science3 months ago

Blood Test Signals Dementia Risk Decades Before Onset

UC San Diego researchers identify plasma phosphorylated tau 217 (p-tau217) as a blood biomarker that predicted future dementia risk decades before symptoms, especially in older women and APOE ε4 carriers; its predictive power varies with age and hormone therapy history, suggesting potential for earlier prevention and monitoring, though not yet ready for routine clinical use.

via SciTechDaily|
#alzheimers-disease#biomarkers#blood-test
New Blood Biomarker Panel Maps How Fast You Age
science3 months ago

New Blood Biomarker Panel Maps How Fast You Age

Researchers from the University of Konstanz analyzed 362 blood parameters in 3,300 people aged 35–74 and used machine learning to distill two gender-specific panels of 10 biomarkers each that best predict biological age. The blood test estimates an individual’s bioage relative to chronological age and was validated in groups known to age faster or slower (Down syndrome, smokers, hormone-therapy users). Some biomarkers appear to drive aging while others simply indicate it, offering new health insights and potential use in evaluating anti-aging therapies and disease risk.

via ScienceAlert|
#aging#biological-age#biomarkers
Blood protein test flags dementia risk decades before symptoms
health3 months ago

Blood protein test flags dementia risk decades before symptoms

A study using the Women’s Health Initiative Memory Study found that higher levels of the blood protein phosphorylated tau 217 (p-tau217) correlate with a greater risk of developing dementia years later, potentially predicting risk up to 25 years before symptoms in 2,766 women aged 65–79. Those with higher p-tau217 had more than a threefold increased risk, with the highest levels linked to about sevenfold risk. The findings suggest a blood-based biomarker could enable earlier brain-health monitoring and prevention, but it’s not yet recommended for routine screening and requires further validation across diverse populations.

via Earth.com|
#biomarkers#blood-test#dementia
No magic cancer test: a single blood test can't save lives
health3 months ago

No magic cancer test: a single blood test can't save lives

An Australian oncologist explains there is no universal 'everything' cancer test. The Grail Galleri blood test aims to detect cancer signals in the blood but failed to reduce late-stage cancer diagnoses in a large NHS trial, illustrating the gap between finding more cancers and saving lives. While early detection remains a key goal, simply detecting cancers earlier doesn’t guarantee better outcomes, so practical public health guidance focuses on prevention and careful interpretation of test results.

via The Guardian|
#blood-test#cancer#clinical-trial
Blood biomarker p-tau217 signals dementia risk in women decades before symptoms
health4 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
health4 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