Insulin signaling regulates R2 retrotransposon expression to orchestrate transgenerational rDNA copy number maintenance.

Preserving a large number of essential yet highly unstable ribosomal DNA (rDNA) repeats is critical for the germline to perpetuate the genome through generations. Spontaneous rDNA loss must be countered by rDNA copy number (CN) expansion. Germline rDNA CN expansion is best understood in Drosophila melanogaster, which relies on unequal sister chromatid exchange (USCE) initiated by DNA breaks at rDNA.

Correction of Lower Lip Malposition With Fascia Lata Slings Following Anterior Mandibular Resection.

Lower lip malposition can occur after anterior mandibular resection as a result of the loss of soft tissue lip attachments. We report our technique of cranial suspension of the lower lip with fascia lata slings to improve lip position. Correction of lip ptosis results in cessation of drooling, improved oral intake, and restoration of facial aesthetics.

Pan-phylum genomes of hornworts reveal conserved autosomes but dynamic accessory and sex chromosomes.

Hornworts, one of the three bryophyte phyla, show some of the deepest divergences in extant land plants, with some families separated by more than 300 million years. Previous hornwort genomes represented only one genus, limiting the ability to infer evolution within hornworts and their early land plant ancestors. Here we report ten new chromosome-scale genomes representing all hornwort families and most of the genera.

Melanoma toolkit for early detection for primary care clinicians: a 1-year follow-up on outcomes.

Introduction: Primary care providers or clinicians (PCPs) have the potential to assist dermatologists in screening patients at risk for skin cancer, but require training to appropriately identify higher-risk patients, perform skin checks, recognize and biopsy concerning lesions, interpret pathology results, document the exam, and bill for the service. Very few validated dermatology training programs exist for PCPs and those that are available focus primarily on one emphasis area, which results in variable efficacy and single-topic limited scope.

Methods: We have created a free, online, continuing education program (Melanoma Toolkit for Early Detection, MTED) that allows learners to choose from a variety of multimedia tools (image recognition, videos, written material, in-person seminars, self-tests, etc.

Combined Autologous Breast Reconstruction and Gynecologic Procedures: Does Timing Affect Clinical and Patient-Reported Outcomes?

Background: Patients with or at risk for breast cancer may opt for risk-reducing gynecologic surgeries, including bilateral salpingo-oophorectomies and/or total abdominal hysterectomy. The timing and safety of combining these procedures with autologous breast reconstruction (ABR) are debated. This study assesses the impact of concurrent ABR and gynecologic surgeries on clinical and patient-reported outcomes.