Application of an Externally Developed Algorithm to Identify Research Cases and Controls from Electronic Health Record Data: Failures and Successes.

Background: The use of Electronic Health Records (EHRs) in research demands robust, interoperable systems. By linking biorepositories to EHR algorithms, researchers can efficiently identify cases and controls for large observational studies (e.g.

Pan-tumor analysis to investigate the obesity paradox in immune checkpoint blockade.

Background: Obesity is a risk factor for developing cancer but is also associated with improved outcomes after treatment with immune checkpoint inhibitors (ICIs), a phenomenon called the obesity paradox. To interrogate mechanisms of divergent immune responses in obese and non-obese patients, we examined the relationship among obesity status, clinical responses, and immune profiles from a diverse, pan-tumor cohort of patients treated with ICI-based therapy.

Methods: From June 2021 to March 2023, we prospectively collected serial peripheral blood samples from patients with advanced or metastatic solid tumors who received ICI as standard of care at Johns Hopkins.

Real-world efficacy and safety of universal 8-week glecaprevir/pibrentasvir in patients with chronic hepatitis C with early chronic kidney disease or pre-end-stage renal disease: Insights from a nationwide hepatisis C virus registry in Taiwan.

An 8-week regimen of glecaprevir/pibrentasvir is recommended for treatment-naïve patients with chronic hepatitis C (CHC). In alignment with the Taiwanese government's objective to eliminate hepatitis C by 2025, this study aimed to provide real-world evidence on the use of this regimen in treatment-naïve patients with chronic kidney disease (CKD) by using data from the Taiwan Association for the Study of the Liver HCV Registry (TACR). CKD was defined by an estimated glomerular filtration rate (eGFR) of <60 mL/min/1.

Untargeted Swab Touch Spray-Mass Spectrometry Analysis with Machine Learning for On-Site Breast Surgical Margin Assessment.

Direct sampling mass spectrometry (MS) has rapidly advanced with the development of ambient ionization MS techniques. Swab touch-spray (TS)-MS has shown promise for rapid clinical diagnostics. However, commercially available swabs are notorious for their high background signals, particularly in the positive ionization mode.