Liquid Biopsy in Type 2 Diabetes Mellitus Management: Building Specific Biosignatures via Machine Learning
Karaglani et al.
The finding, in our words
Serum cell-free DNA methylation levels of GCK, IAPP and KCNJ11 distinguished type 2 diabetes patients from healthy controls with an AUC of 0.927. This demonstrates that a minimally invasive blood draw can yield clinically actionable biosignatures for diabetes diagnosis and monitoring, supporting decentralised diagnostic approaches.
A paraphrase to the Library’s standard, never the abstract. The source is one link away and is always the authority.
Capillary blood collected by non-medical personnel and saliva both showed elevated cell-free nuclear DNA after psychosocial and physical stress in women and men, while mitochondrial DNA fragments did not respond consistently. This supports cf-nDNA as a potential decentralised biomarker for acute stress responses, though mechanisms of release remain unclear.
Limberg et al., Translational psychiatry · source ↗
Plasma donor-derived cell-free DNA measured at home identified acute lung allograft dysfunction in asymptomatic transplant recipients with 71% sensitivity and 84% specificity, potentially reducing need for surveillance bronchoscopy. This demonstrates decentralised biomarker monitoring can detect rejection and infection early, enabling timely intervention.
Keller et al., The Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation (paywalled) · source ↗
Blood drawn into EDTA tubes yields robust cell-free DNA methylation profiles if plasma is prepared within 24 hours, while preservative tubes maintain profile integrity after 72-hour ambient delays, giving decentralised diagnostics a cost-effective choice for liquid biopsy collection.
The study found that cfDNA isolation methodology and DTT treatment strongly affect yield and integrity from blood and seminal plasma but not methylation, with NucleoSnap showing the best overall performance and semen identified as an abundant cfDNA source for male reproductive health. This matters because standardising preanalytical and analytical steps is essential for reliable liquid biopsy results in decentralised diagnostics.
Krasic et al., Frontiers in cell and developmental biology · source ↗
The authors developed a multiplex droplet digital PCR assay that measures absolute cfDNA concentration and infers fragment size distribution by cross-amplifying human olfactory receptor genes, identifying suboptimal samples and aberrant size profiles associated with circulating tumour DNA. The assay correlated well with capillary electrophoresis and high-throughput sequencing, offering a cost-effective quality control tool that could help standardise cfDNA analysis for cancer detection, transplantation monitoring and prenatal testing.