Implementation of the AAMC's Holistic Review Model for Psychiatry Resident Recruitment.

Introduction: In psychiatry, several converging factors are impacting the recruitment of residents: the increased competitiveness of the specialty, the national trend to take active steps to improve diversity and inclusion, and the decision from USMLE to change Step 1 to a pass/fail result. Methods: We developed a workshop for psychiatry residency program directors to meet these challenges and transition into using a holistic review model during recruitment. The workshop included (1) a didactic session providing background on the AAMC holistic review model; (2) a small-group exercise to determine and prioritize experiences, attributes, competencies, and metrics (EACMs) aligned with the program's mission and aims; (3) a review of the rankings from the previous exercise, selection of two "very important" criteria for each of the four domains of the EACM model, and operationalization of these criteria based on the recruitment process; and (4) a discussion focused on application of program criteria with example applicants. Results: The holistic review workshop was conducted at the American Association of Psychiatry Residency Directors conference in 2021 with 48 self-selected attendees. Following the workshop, 74% of attendees reported a likelihood of implementing holistic applications during their next application cycle, 78% were able to leave with at least one actionable item, 100% thought that the session was interactive, and 78% felt that the session met their expectations. Discussion: Implementing a holistic review for psychiatry residency recruitment can assist programs in responding to the rapidly changing landscape and achieve aims for improving diversity and inclusion.

A novel G protein-coupled receptor, related to GPR4, is required for assembly of the cortical actin skeleton in early Xenopus embryos.

As the fertilized Xenopus egg undergoes sequential cell divisions to form a blastula, each cell develops a network of cortical actin that provides shape and skeletal support for the whole embryo. Disruption of this network causes loss of shape and rigidity of the embryo, and disrupts gastrulation movements. We previously showed that lysophosphatidic acid (LPA) signaling controls the change in cortical actin density that occurs at different stages of the cell cycle. Here, we use a gain-of-function screen, using an egg cDNA expression library, to identify an orphan G protein-coupled cell-surface receptor (XFlop) that controls the overall amount of cortical F-actin. Overexpression of XFlop increases the amount of cortical actin, as well as embryo rigidity and wound healing, whereas depletion of maternal XFlop mRNA does the reverse. Both overexpression and depletion of XFlop perturb gastrulation movements. Reciprocal rescue experiments, and comparison of the effects of their depletion in early embryos, show that the XLPA and XFlop signaling pathways play independent roles in cortical actin assembly, and thus that multiple signaling pathways control the actin skeleton in the blastula.

Lysophosphatidic acid signaling controls cortical actin assembly and cytoarchitecture in Xenopus embryos.

The mechanisms that control shape and rigidity of early embryos are not well understood, and yet are required for all embryonic processes to take place. In the Xenopus blastula, the cortical actin network in each blastomere is required for the maintenance of overall embryonic shape and rigidity. However, the mechanism whereby each cell assembles the appropriate pattern and number of actin filament bundles is not known. The existence of a similar network in each blastomere suggests two possibilities: cell-autonomous inheritance of instructions from the egg; or mutual intercellular signaling mediated by cell contact or diffusible signals. We show that intercellular signaling is required for the correct pattern of cortical actin assembly in Xenopus embryos, and that lysophosphatidic acid (LPA) and its receptors, corresponding to LPA1 and LPA2 in mammals, are both necessary and sufficient for this function.