High school health education: The impact of medical student led instruction in northern Nevada high schools.

Health education is an important topic in high school given its lasting effect on learners. Medical students are in a unique position to deliver this curriculum as they can provide information from a relatable standpoint. Ten medical students created a health education program, The Healthier Nevada Project (HNVP), designed for high school students using four modules focused on adolescent public health concerns: substance use and addiction, exercise, personal relationships, and stress and mental health. The curriculum was administered to over 700 health class students at three schools in Reno, Nevada, U.S.A., from August 2019-March 2020. This cross-sectional study measured whether the modules increased students' comfort level, familiarity, and likelihood of discussing each topic with a healthcare provider. The method of evaluation was pre- and post-Likert scale surveys with 7-10 questions regarding students' understanding of each topic, knowledge of related resources, and likelihood of future discussions with healthcare providers. Linear regression analysis showed significant increases in mean scores (in all cases p < 0.0001) for all four modules after the training. The modules were adjusted for the cluster effect of School and showed no significant two-way interaction between pre- and post-survey, although overall differences between schools were present. These findings indicate that HNVP significantly increased students' knowledge, comfort, and likelihood of discussing each topic with a healthcare professional following module administration. Future efforts will aim to evaluate the long-term impact of HNVP on student behavior and evaluate if presenter type influences program success among adolescents.

Motivational Interviewing Training: A Case-Based Curriculum for Preclinical Medical Students.

Introduction: With the rise of chronic medical problems involving lifestyle behaviors and the benefits of patient involvement in preventative care, medical students need to learn how to help patients change health risk behaviors and improve patient involvement in order to improve health outcomes. Motivational interviewing (MI) is a patient-centered therapeutic approach that is effective in the treatment of lifestyle behaviors and diseases. Methods: This 2-hour didactic training session, along with a 3-hour case-based practice session involving role-plays and a 3-hour evaluated session utilizing standardized patients, was delivered to 68 preclinical medical students. Knowledge, attitudes, and self-efficacy were evaluated via pre- and posttraining surveys, and satisfaction with the training was assessed upon completion. Results: Students who completed both pre- and postsurveys (n = 48) showed a statistically significant improvement in knowledge of MI (t = -29.73, df = 47, p < .001), attitudes regarding implementing MI in health care settings (t = -3.04, df = 47, p < .005), and self-efficacy (t = -10.699, df = 47, p < .001) in talking with patients about behavior change. Students were also highly satisfied with the MI training package (M of 4.4, SD = 0.6, out of 5.0). Discussion: A training package to teach preclinical medical students about MI was effective in helping students learn the knowledge and skills necessary to deliver MI in a broad range of clinical cases.

Plasticity of electrical pacemaking by interstitial cells of Cajal and gastric dysrhythmias in W/W mutant mice.

BACKGROUND & AIMS: Interstitial cells of Cajal (ICC) generate and propagate slow waves in the stomach. Gastric peristalsis depends on a proximal-to-distal gradient in slow wave frequency. We tested whether the gastric frequency gradient was an intrinsic property of ICC and whether dysrhythmias result from disruptions of ICC networks. METHODS: We studied wild-type (WT) and W/W(V) mice, which have only myenteric (pacemaker) ICC in the stomach. ICC distributions were analyzed by Kit immunofluorescence. Pacemaking in tissues was studied by intracellular electrophysiologic recording and in cultured ICC by monitoring mitochondrial [Ca(2+)] oscillations with rhod-2 fluorescence or membrane potential with DiBAC(4)(3) fluorescence. RESULTS: Slow wave frequencies were constant throughout WT gastric muscle sheets containing corpus and antrum. Separating the antrum from the corpus caused a significant drop in antral slow wave frequency. ICC from WT antrums also displayed significantly slower pacemaker frequencies than corpus ICC, but the corpus pacemaker frequency dominated in cocultures of corpus and antrum ICC. Myenteric ICC networks were reduced in W/W(V) mice, particularly in the corpus. In W/W(V) mice, separating the antrum from the corpus failed to reduce antral slow wave frequency. Antral pacemaker frequency in ICC from W/W(V) stomachs was the same as in corpus ICC. CONCLUSIONS: The proximal-to-distal slow wave frequency gradient and entrainment of distal electrical activity by proximal pacemakers are fundamental properties of gastric ICC. Chronic depletion of ICC networks disrupts the proximal-to-distal frequency gradient, and emergence of ectopic pacemakers in the antrum may be caused by "reprogramming" of the ICC pacemaker apparatus.