When kept at room temperature (15–25 °C), cell-free DNA in blood samples obtained in Norgen's cf-DNA/cf-RNA Preservative Tubes remains stable for up to 30 days.

Circulating cell-free DNA (ccfDNA), refers to degraded DNA fragments that circulate freely in body fluids such as blood plasma, urine, and cerebrospinal fluid. These fragments vary in size, reflecting ...

Tiny, newly formed tumors shed small fragments of DNA that are swept into the bloodstream. Future cancer screening tests could detect them early.

More information: Mohamed Adil et al, Preeclampsia risk prediction from prenatal cell-free DNA screening, Nature Medicine (2025). DOI: 10.1038/s41591-025-03509-w Provided by University of ...

The sensitivity of this blood-based test for colorectal cancer was 83.1%, whereas reported sensitivity of other noninvasive screening tests ranges from 67.3% (95% CI, 57.1 to 76.5) with FIT 15 and ...

Nidadavolu, L.S., et al. (2022) Circulating Cell-Free Genomic DNA Is Associated with an Increased Risk of Dementia and with Change in Cognitive and Physical Function. Journal of Alzheimer’s ...

A cell-free DNA (cfDNA) blood test, aimed at detecting abnormal DNA signals in people with an average risk of colorectal cancer (CRC), correctly detected CRC in most people confirmed to have the ...

Circulating Cell-Free Genomic DNA Is Associated with an Increased Risk of Dementia and with Change in Cognitive and Physical Function. Journal of Alzheimer's Disease , 2022; 89 (4): 1233 DOI: 10. ...

A blood test analyzing cell-free DNA with whole-genome sequencing and machine learning demonstrated 87.4% sensitivity and 97.8% specificity for multi-cancer detection, correctly predicting tissue ...

A new blood test utilizing cell-free DNA from the placenta can predict preterm preeclampsia with 80% accuracy. This condition, causing significant maternal and fetal mortality, has been difficult ...