Dispelling the myth: comparable duration and impact of research training for MD-PhD and PhD graduates.

The average time-to-degree for completing a life sciences PhD in the U.S. is longer for single-degree than dual-degree trainees, supporting a perception that the PhD training of MD-PhDs is less rigorous or fulsome. To determine whether the duration and impact of graduate training is influenced by degree format, we analyzed data for the 2011-2016 graduates of three Harvard Medical School PhD programs. Linear mixed effects models were used to determine the association between degree type (MD-PhD vs. PhD) and research outcomes, including time-to-degree, time-to-thesis-defense, and publications submitted during the PhD. Although pursuing an MD-PhD was associated with a 1.5-year shorter time-to-PhD-degree, basing this calculation on the official PhD period does not account for completion of early PhD requirements, including research rotations and qualifying coursework, during the first two years of medical school. There was no association between degree format and the total number of first-authored or overall publications, although pursuing a dual degree was associated with increased impact metrics of published papers. The results highlight that despite the optically shorter PhD durations of MD-PhD graduates based on graduate program enrollment period, research training is on par with their single-degree peers, rendering MD-PhD graduates well equipped to become successful scientific investigators.

Systemized approach to equipping medical students with naloxone: a student-driven initiative to combat the opioid crisis.

BACKGROUND: Naloxone is an effective and safe opioid reversal medication now approved by the U.S. Food and Drug Administration (FDA) for use with or without a prescription. Despite this, naloxone dissemination lags at a time when U.S. opioid-related mortality expands. The authors proposed distributing naloxone to all U.S. medical students using established statewide standing prescription orders for naloxone, eliminating the financial burden of over-the-counter costs on students and streamlining workflow for the pharmacy. By focusing naloxone distribution on medical students, we are able to capitalize on a group that is already primed on healthcare intervention, while also working to combat stigma in the emerging physician workforce. METHODS: Beginning August 2022, the authors established a partnership between Harvard Medical School (HMS) and the outpatient pharmacy at Brigham and Women's Hospital (BWH) to facilitate access to naloxone for HMS medical students. BWH developed a HIPAA-secure electronic form to collect individual prescription information. BWH pharmacists processed submissions daily, integrating the naloxone prescription requests into their workflow for in-person pick-up or mail-order delivery. The electronic form was disseminated to medical students through a required longitudinal addiction medicine curriculum, listserv messaging, and an extracurricular harm reduction workshop. RESULTS: Over the 2022-2023 academic year, 63 medical students obtained naloxone kits (two doses per kit) through this collaboration. CONCLUSIONS: We propose that medical schools advocate for a hospital pharmacy-initiated workflow focused on convenience and accessibility to expand naloxone access to medical students as a strategy to strengthen the U.S. emergency response and prevention efforts aimed at reducing opioid-related morbidity and mortality. Expansion of our program to BWH internal medicine residents increased our distribution to over 110 healthcare workers, and efforts to expand the program to other BWH training programs and clinical sites such as the emergency department and outpatient infectious disease clinics are underway. With more than 90,000 medical students in the U.S., we believe that widespread implementation of targeted naloxone training and distribution to this population is an accessible approach to combating the public health crisis of opioid-related overdoses.

Paraburkholderia symbionts isolated from Dictyostelium discoideum induce bacterial carriage in other Dictyostelium species.

The social amoeba Dictyostelium discoideum engages in a complex relationship with bacterial endosymbionts in the genus Paraburkholderia, which can benefit their host by imbuing it with the ability to carry prey bacteria throughout its life cycle. The relationship between D. discoideum and Paraburkholderia has been shown to take place across many strains and a large geographical area, but little is known about Paraburkholderia's potential interaction with other dictyostelid species. We explore the ability of three Paraburkholderia species to stably infect and induce bacterial carriage in other dictyostelid hosts. We found that all three Paraburkholderia species successfully infected and induced carriage in seven species of Dictyostelium hosts. While the overall behaviour was qualitatively similar to that previously observed in infections of D. discoideum, differences in the outcomes of different host/symbiont combinations suggest a degree of specialization between partners. Paraburkholderia was unable to maintain a stable association with the more distantly related host Polysphondylium violaceum. Our results suggest that the mechanisms and evolutionary history of Paraburkholderia's symbiotic relationships may be general within Dictyostelium hosts, but not so general that it can associate with hosts of other genera. Our work further develops an emerging model system for the study of symbiosis in microbes.