Physicians must adapt their learning and expertise to the rapid evolution of healthcare. To train for the innovation-efficient demands of adaptive expertise, medical students need to acquire the skill of adaptive self-regulated learning, which includes accessing, interpreting, and synthesizing emerging basic and translational research to support patient care. In response, we developed the course Medical Student Grand Rounds (MSGR).
View Article and Find Full Text PDFRadiotherapy of head and neck cancers frequently leads to irreversible hypofunction of salivary glands, which severely compromises the quality of life and is extremely difficult to treat. We found recently that salivary gland resident macrophages are sensitive to radiation and interact with epithelial progenitors and endothelial cells through homeostatic paracrine factors. Heterogeneous subpopulations of resident macrophages are present in other organs with distinct functions, whereas subpopulations of salivary gland resident macrophages with distinct functions or transcriptional profiles have not been reported yet.
View Article and Find Full Text PDFLocus-specific gene amplification and genome-wide endoreplication generate the elevated copy number of ribosomal DNA (rDNA, 9000 C) and non-rDNA (90 C) chromosomes in the developing macronucleus of . Subsequently, all macronuclear chromosomes replicate once per cell cycle during vegetative growth. Here, we describe an unanticipated, programmed switch in the regulation of replication initiation in the rDNA minichromosome.
View Article and Find Full Text PDFharbors two functionally and physically distinct nuclei within a shared cytoplasm. During vegetative growth, the "cell cycles" of the diploid micronucleus and polyploid macronucleus are offset. Micronuclear S phase initiates just before cytokinesis and is completed in daughter cells before onset of macronuclear DNA replication.
View Article and Find Full Text PDFProblem: Understanding and communicating medical advances driven by basic research, and acquiring foundational skills in critically appraising and communicating translational basic research literature that affects patient care, are challenging for medical students to develop.
Approach: The authors developed a mandatory course from 2012 to 2018 at Texas A&M University College of Medicine to address this problem. Medical Student Grand Rounds (MSGR) trains first-year students to find, critically assess, and present primary research literature about self-selected medically relevant topics.