Tricuspid Regurgitation after Orthotopic Heart Transplantation: Trajectories and Association With Mortality.

Background: Tricuspid regurgitation (TR) is common immediately after orthotopic heart transplantation (OHT), though the expected outcomes of TR over time remain undefined. In this study, we examined the natural trajectory of TR in the first 120 days post-transplantation. We observed the clinical phenotypes of trajectories of TR after OHT, and assessed trajectory correlation with 1-year mortality and degree of right ventricular (RV) dysfunction.

Diverging paths: Modeling the relation between adverse effects, attitudes, perceived adherence, and treatment effect in an internet-based cognitive-behavioral intervention for obsessive-compulsive disorder.

Background And Aim: The efficacy of internet-based interventions (IBI) for various psychiatric disorders is widely established, but little is known about the mechanisms or possible influencing factors. One of the most prominent problems in IBI is low adherence, but the relationship between adherence and level of improvement is still unclear. Patients' attitudes and beliefs about IBI as well as the experience of adverse effects-another widely neglected topic-may also influence the effectiveness of these interventions.

Rise of the machines: Normothermic regional perfusion use in heart transplantation in the United States.

Background: Normothermic regional perfusion (NRP) and direct procurement and perfusion (DPP) allow for transplantation with donation after circulatory death (DCD) hearts. This study aimed to characterize the use of and variations in NRP and DPP for DCD transplants in the United States.

Methods: Heart transplants performed between December 1, 2019 and March 31, 2024, were identified from the United Network for Organ Sharing database.

MAIT cell plasticity enables functional adaptation that drives antibacterial immune protection.

Mucosal-associated invariant T (MAIT) cells are known for their rapid effector functions and antibacterial immune protection. Here, we define the plasticity of interferon-γ (IFN-γ)-producing MAIT1 and interleukin-17A (IL-17A)-producing MAIT17 cell subsets in vivo. Whereas T-bet MAIT1 cells remained stable in all experimental settings, after adoptive transfer or acute or infection, RORγt MAIT17 cells could undergo phenotypic and functional conversion into both RORγtT-bet MAIT1/17 and RORγtT-bet MAIT1 cells.