De novo identification of CD4 T cell epitopes.

CD4 T cells recognize peptide antigens presented on class II major histocompatibility complex (MHC-II) molecules to carry out their function. The remarkable diversity of T cell receptor sequences and lack of antigen discovery approaches for MHC-II make profiling the specificities of CD4 T cells challenging. We have expanded our platform of signaling and antigen-presenting bifunctional receptors to encode MHC-II molecules presenting covalently linked peptides (SABR-IIs) for CD4 T cell antigen discovery.

Low concordance between CTPA and echocardiography in identification of right ventricular strain in PERT patients with acute pulmonary embolism.

Purpose: Right ventricular strain (RVS) is used to risk stratify patients with acute pulmonary embolism (PE) and influence treatment decisions. Guidelines suggest that either computed tomography pulmonary angiography (CTPA) or transthoracic echocardiography (TTE) can be used to assess RVS. We sought to determine how often CTPA and TTE yield discordant results and to assess the test characteristics of CTPA compared to TTE.

NSQIP 30-day outcome measures for below-knee amputations by ICD-10 diagnoses.

Background: The indications for Below-Knee Amputation (BKA) are expansive and etiologic subgroups are not well defined. This analysis uses primary ICD-10 diagnosis codes to stratify patients undergoing BKA, and examines differences in subgroup characteristics and 30-day outcomes.

Methods: We performed a retrospective analysis of patients in the NSQIP database who underwent BKA between 2015 and 2020.