Mitochondrial DNA lineages determine tumor progression through T cell reactive oxygen signaling.

Mitochondrial DNA (mtDNA) is highly polymorphic, and host mtDNA variation has been associated with altered cancer severity. To determine the basis of this mtDNA-cancer association, we analyzed conplastic mice with the C57BL/6J (B6) nucleus but two naturally occurring mtDNA lineages, and , where mitochondria generate more oxidative phosphorylation (OXPHOS)-derived reactive oxygen species (mROS). In a cardiac transplant model, Foxp3+ T regulatory (Treg) cells supported long-term allograft survival, whereas Treg cells failed to suppress host T effector (Teff) cells, leading to acute rejection.

Quantitative comparison of vascular characteristics of plus disease images published over time: International Classification of Retinopathy of Prematurity.

Plus disease was first defined in the original International Classification of retinopathy of prematurity (ICROP) publication in 1984. Over time, the definition of plus disease has evolved, and each ensuing ICROP publication has included example plus disease images. Because plus disease is often present when treatment is indicated, it is important to evaluate whether the retinal vascular characteristics (ie, dilation and tortuosity) depicted in these example images have remained the same or changed over time.

Validating Rules for Defining No Improvement of Visual Acuity in Childhood Amblyopia.

Purpose: When treating amblyopia, it is important to define when visual acuity (VA) is no longer improving (i.e., stable) because treatment decisions may be altered based on this determination.

To kill or to piggyback: Switching of viral lysis-lysogeny strategies depending on host dynamics.

Viruses wield significant influence over microbial communities and ecosystem function in marine environments. However, the selection of viral life strategies and their impacts on microbial communities remains enigmatic. In this study, we utilized a large-scale macrocosm, established using water samples from a marine coastal region, to enable community-level investigation.

Perspectives of Canadian Plastic Surgeons on the Surgical Management of Pressure Injuries.

Pressure injuries, particularly among patients with spinal cord injuries and the elderly, significantly contribute to morbidity, mortality, and financial sequelae. Surgical interventions, including debridement and flaps, may improve outcomes, especially for stage 3 and 4 pressure injuries. This survey assesses Canadian plastic surgeons' perspectives and practices regarding the surgical management of these injuries.