We require our students in the 4th grade to take an on-site pediatric outpatient clinic course at the Teikyo University Hospital as part of a 4-week on-site training program.  This year, 64 trainees divided into groups of 3 or 4 students took the course between June and August.  In the morning, trainees were asked to conduct clinical interviews with 287 patients’ guardians in the presence of trainers.  This was followed by the observation of consultation and treatment services provided to patients.  In the afternoon, students reported the findings obtained in medical interviews, participated in group discussions, and received supplementary lectures from trainers.  After completing the course, students were asked to fill in a questionnaire.  When asked whether they were satisfied with the course, 62.5% and 37.5% of students said “very satisfied” and “satisfied,” respectively, while 64.1%, 29.7%, and 6.2% of students said the observation of consultation and treatment services was “very good,” “good,” and “cannot say which,” respectively.  About the medical interviews, 64.1% and 34.4% said that it is “very good” and “good” to conduct them, while 1.5% said “cannot say which.”  All students said they could determine the problems faced by guardians regarding drugs in the medical interview.  The on-site pediatric outpatient care course was found to be “very useful” and “useful” by 62.5% and 35.9% of patients, respectively, while 1.6% said “cannot say which.”  In conclusion, most students were greatly satisfied with the medical interview with guardians using a questionnaire and said that it made it possible for them to closely communicate with guardians.  This result was thought to be attributable to the use of the techniques of the medical interview OSCE which the students learned prior to conducing medical interviews with guardians.

Background/Aims: Several studies have assessed the effect of cool temperature on colonic peristalsis. Transient receptor potential melastatin 8 (TRPM8) is a temperature-sensitive ion channel activated by mild cooling expressed in the colon. We examined the antispasmodic effect of cool temperature on colonic peristalsis in a prospective, randomized, single-blind trial and based on the video imaging and intraluminal pressure of the proximal colon in rats and TRPM8-deficient mice. Methods: In the clinical trial, we randomly assigned a total of 94 patients scheduled to undergo colonoscopy to 2 groups: the mildly cool water (n = 47) and control (n = 47) groups. We used 20 mL of 15°C water for the mildly cool water. The primary outcome was the proportion of subjects with improved peristalsis after treatment. In the rodent proximal colon, we evaluated the intraluminal pressure and performed video imaging of the rodent proximal colon with cool water administration into the colonic lumen. Clinical trial registry website (Trial No. UMIN-CTR; UMIN000030725). Results: In the randomized controlled trial, after treatment, the proportion of subjects with no peristalsis with cool water was significantly higher than that in the placebo group (44.7% vs 23.4%; P < 0.05). In the rodent colon model, cool temperature water was associated with a significant decrease in colonic peristalsis through its suppression of the ratio of peak frequency (P < 0.05). Cool temperaturetreated TRPM8-deficient mice did not show a reduction in colonic peristalsis compared with wild-type mice. Conclusion For the first time, this study demonstrates that cool temperature-dependent suppression of colonic peristalsis may be associated with TRPM8 activation.