The major epidemiologic, microbiologic, immunologic, and clinical aspects of Lyme disease that form the basis for a newly developed vaccine that may become available soon for human use.

Working together, two major pharmaceutical companies have developed a Lyme disease vaccine consisting of recombinant-derived outer surface protein A (OspA) of the etiologic agent Borrelia burgdorferi. Multiple clinical trials have shown the vaccine to have good safety and efficacy results, and it is hoped that it would become available for human use at least by the year 2025 after receiving approval from the U.S. Food and Drug Administration. There are still challenges left to ensure that the vaccine has, at most, minimal side effects. Also, because the previously developed Lyme disease vaccine was discontinued in 2002 after four years of distribution, due in part, for frivolous reasons having little or no scientific basis, that even led to legal entanglements involving the vaccine manufacturer and some of the medical personnel overseeing the clinical trials, there will be concerns that this newly developed one could be subject again to some of the same unnecessary scrutiny rendering its implementation suboptimal. Initially this review will focus on the key epidemiological, microbiologic, immunologic and clinical aspects of Lyme disease that provide the foundation for developing this type of vaccine that could have a serious impact on the prevalence of this and even certain other tick-transmitted infections.

Developing Future Academic Physicians: the Academic Medicine Scholars Program.

Retention among academic medicine faculty is problematic, and there has been a decline in the number of physicians pursuing careers in academia. The education of future physicians relies upon physicians who pursue careers in academic medicine. Therefore, efforts must be taken to increase the percentage of physicians who conduct research and/or teach medical trainees. Recognizing this need, the New York Institute of Technology College of Osteopathic Medicine (NYITCOM) established the Academic Medicine Scholars Program ("Scholars Program"), which was designed to prepare outstanding osteopathic medical students for a career in academic medicine. Here we aim to determine the extent to which participants in NYITCOM's Scholars Program go on to pursue research and teaching endeavors during their residency and/or fellowship programs. An anonymous survey was administered to participants in the Scholars Program from 2012 through 2018 and asked about the participants' research and teaching experiences at the following time points: during the Scholars Program, residency, and fellowship, if applicable. Participation in the program led to a significant increase in survey respondents' teaching and research skills and an increased participation in scholarly activity as compared with the national average. The results also demonstrated that the program assisted alumni in securing positions in competitive residency and fellowship programs. As residents and fellows, alumni continued to pursue scholarly endeavors, primarily by publishing abstracts and posters, attending both regional and national conferences, and delivering lectures. We are hopeful that other medical schools will take part in producing capable academic medicine physicians by incorporating a similar program into their curriculum.

Superior mesenteric origin of the proper hepatic artery: embryological and clinical implications.

The hepatic arteries are subject to a great deal of anatomical variation, potentially complicating hepatobiliary surgical procedures as well as general gastrointestinal procedures that involve foregut and midgut structures. We report a case of a rare variant of the proper hepatic artery discovered during dissection of an 84-year-old male cadaver. In this individual, the common hepatic artery was absent and the proper hepatic artery was replaced directly to the superior mesenteric artery. The gastroduodenal artery and the right inferior phrenic artery took origin from the celiac trunk. In addition, there was no identifiable right gastric artery. The celiac trunk gave off three branches: the splenic, left gastric, and gastroduodenal arteries. The entire arterial blood supply to the liver, therefore, was derived from the superior mesenteric artery. Patterns of regression of the ventral branches and the partial disappearance of the ventral anastomotic arteries during embryonic development play a major role in the variations of the gut arteries. An intraoperative encounter with this particular variant carries a significant risk of iatrogenic injury with potentially devastating ischemia and necrotic results. Accurate depiction and definition of the hepatic arterial anatomy are crucial. Variations like the one described here underscore the importance of pre-operative imaging and knowledge of the embryological origins of variation.

Impact of osteopathic manipulative treatment on secretory immunoglobulin a levels in a stressed population.

CONTEXT: High levels of human secretory immunoglobulin A (sIgA) have been shown to decrease the incidence of acquiring upper respiratory tract infections. Osteopathic manipulative treatment (OMT) has been shown to improve cardiac indices, increase lymph flow rates through the thoracic duct, and decrease sympathetic tone in postoperative patients and those in intensive care. Therefore, we hypothesized that OMT may also increase sIgA levels in people under high levels of emotional and psychological stress, thereby enhancing immunity and potentially preventing subsequent infections. OBJECTIVE: To determine if OMT increases sIgA levels in highly stressed individuals. METHODS: Twenty-five second-year osteopathic medical students were randomly assigned to an experimental group (n=12) or a control group (n=13). All participants were scheduled to take their national board examination (Comprehensive Osteopathic Medical Licensing Examination-USA) within 2 to 3 weeks after the experiment. After each participant submitted a saliva sample for a baseline sIgA level assessment, the experimental group received 20 minutes of OMT while the control group sat quietly and relaxed in a separate area for 20 minutes. Participants in both groups rested quietly for 1 hour after the 20-minute session and then submitted a second saliva sample. RESULTS: A 2 × 2 repeated measures analysis of variance revealed that the experimental group displayed a statistically significant greater increase in postintervention sIgA levels than the control group (F1,23), 5.92; P<.025). CONCLUSION: This study demonstrates the positive effect of OMT on sIgA levels in persons experiencing high stress. Results suggest that OMT may then have therapeutic preventive and protective effects on both healthy and hospitalized patients, especially those experiencing high levels of emotional or physiological stress and those at higher risk of acquiring upper respiratory tract infections.