Lack of HPV in pterygium with no evidence of autoinoculation and the role of cytokines in pterygium with dry eye

DNA methylation markers in first-void urine effectively detect high-grade cervical lesions in HPV-positive women, with results similar to clinician-collected samples in those over 30. This enables reliable cervical cancer screening using self-collected urine, reducing the need for invasive follow-up procedures in decentralised settings.

Evaluating DNA methylation markers and extended HPV genotyping in first-void urine for detecting high-grade cervical lesions in HPV-positive women: a cross-sectional study — Tranberg et al., BMC medicine · source ↗

• colli-pee
• first-void
• self-collection
• hpv
• urine
• biomarkers
• genotyping

Urinary HPV testing using first-void urine collected with the Colli-Pee device showed substantial agreement with clinician-collected cervico-vaginal sampling and near-equivalent negative predictive value, supporting its use as a clinically credible non-invasive entry point for cervical screening in settings where low participation rather than analytical performance is the principal barrier.

Agreement and Diagnostic Performance of Urinary HPV Testing Versus Clinician-Collected Cervico-Vaginal Sampling: A Prospective Cross-Sectional Study in a Romanian Cohort — Nati et al., Medical sciences (paywalled) · source ↗

• urine
• first-void
• colli-pee
• hpv
• sti

This meta-analysis found that self-collected urine samples for HPV testing had lower sensitivity for detecting high-grade lesions compared to physician-collected cervical specimens. The use of a first-void collection device such as Colli-Pee was associated with marginally higher sensitivity than general urine sampling.

Accuracy of HPV Testing Using Self-collected Urine Compared With Physician-collected Cervical Specimen for HSIL or Worse — Chen et al., Journal of lower genital tract disease (paywalled) · source ↗

• urine
• first-void
• colli-pee
• self-collection
• validation
• hpv
• sti

This randomised sub-study found return rates of 10.4% for Colli-Pee, 10.1% for FLOQSwabs and 7.4% for Evalyn-Brush. All devices yielded sufficient DNA with low invalid rates, but the authors noted the study was limited by low overall participation.

Comparison of three different hpv self-sampling tools - a subanalysis of the prospective, randomized hannover self-collection study — Hempel et al., Archives of gynecology and obstetrics · source ↗

• urine
• first-void
• colli-pee
• self-collection
• acceptability
• hpv
• sti

For decentralised testing, a study found dry vaginal self-samples using Copan FLOQSwabs stored up to two weeks at room temperature maintain DNA quality. However, first-void urine collected with the Colli-Pee device may be less sensitive for HPV detection, showing lower positivity and higher cycle threshold values, median Ct 30 versus 27 for other samples.

Evaluation of the Quality and Suitability of Self-Collected Vaginal and Urine Samples for Human Papillomavirus Testing: A Prospective Matched Study — Chu et al., BJOG : an international journal of obstetrics and gynaecology · source ↗

• colli-pee
• first-void
• sti
• self-collection
• dried
• hpv
• urine
• validation