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Medical students tend to have difficulties in developing a holistic view of metabolic pathway and hormone regulation. To address this issue, an interactive activity was implemented for first-year medical students at the School of Medicine, University of Minho, Portugal. Students' previous knowledge on metabolic pathways was evaluated by a pre-test followed by an interactive activity. In the supervised activity, students were challenged to elaborate a diagrammatic representation regarding enzymes, co-factors, and hormonal metabolic regulation in early fasting during the night, as well as in well-fed conditions. The activity was concluded with a post-test to determine the students' learning gains and a few days later students were evaluated by a final exam. Afterwards, students evaluated the activity by filling a questionnaire. Results from four different cohorts showed that the activity resulted in significant learning gains, particularly favoring students who have less prior knowledge. The comparison between the pre-test and the final exam also revealed significant learning gains for low achievers students. On the questionnaires, the majority of the students rated the activity as good or very good. Students agreed that this activity promotes: (1) reactivation of previous knowledge; (2) a better understanding of the interconnections between the metabolic pathways; (3) the application of learned concepts in real scenarios; and (4) sharing knowledge with peers. This study describes an active, unpretentious, and easily implemented activity available for early medical and biochemical curricula.

Despite the increasing awareness of the relevance of empathy in patient care, some findings suggest that medical schools may be contributing to the deterioration of students' empathy. Therefore, it is important to clarify the magnitude and direction of changes in empathy during medical school. We employed a scoping review to elucidate trends in students' empathy changes/differences throughout medical school and examine potential bias associated with research design. The literature published in English, Spanish, Portuguese and French from 2009 to 2016 was searched. Two-hundred and nine potentially relevant citations were identified. Twenty articles met the inclusion criteria. Effect sizes of empathy scores variations were calculated to assess the practical significance of results. Our results demonstrate that scoped studies differed considerably in their design, measures used, sample sizes and results. Most studies (12 out of 20 studies) reported either positive or non-statistically significant changes/differences in empathy regardless of the measure used. The predominant trend in cross-sectional studies (ten out of 13 studies) was of significantly higher empathy scores in later years or of similar empathy scores across years, while most longitudinal studies presented either mixed-results or empathy declines. There was not a generalized international trend in changes in students' empathy throughout medical school. Although statistically significant changes/differences were detected in 13 out of 20 studies, the calculated effect sizes were small in all but two studies, suggesting little practical significance. At the present moment, the literature does not offer clear conclusions relative to changes in student empathy throughout medical school.