1.Clinical Question-Centered Remote Learning for Residents
Atsushi JINNO ; Kento HANADA ; Ken NAGAHATA ; Kazuhito NOMURA ; Hiroshi MIHARA ; Masanori SHIRATORI ; Hiroshi IDA ; Tatsuo MANABE ; Kenta SATO ; Naoki ASAKAGE ; Hideki OKASHIWA ; Yoshihisa TSUJI
Medical Education 2026;57(1):19-26
Cognitive apprenticeship and reflective practice are fundamental educational theories supporting postgraduate clinical training. Community hospital rotations provide ideal opportunities to apply these theories. However, community hospitals face challenges in securing educational time due to faculty shortages and heavy clinical workloads, leading to on-the-job training becoming the primary educational approach. Consequently, opportunities for structured instruction and reflection may be limited, potentially hindering the implementation of cognitive apprenticeship and reflective practice. To address this mismatch between educational needs and available resources, we implemented a remote educational conference focused on clinical questions (CQs) arising from residents' clinical experiences. Unlike traditional clinical conferences that focus on determining patient management, this initiative centers on reflective dialogue based on CQs formulated by residents themselves. By integrating experiential learning theory and reflective practice theory and focusing specifically on the latter three steps of cognitive apprenticeship, we successfully constructed an effective educational model for remote learning environments. This practice enables high-quality medical education that transcends geographical constraints and is considered valuable for future community-based medical education.
2.A 4-year cohort study of the effects of PNPLA3 rs738409 genotypes on liver fat and fibrosis and gut microbiota in a non-fatty liver population.
Satoshi SATO ; Chikara IINO ; Takafumi SASADA ; Keisuke FURUSAWA ; Kenta YOSHIDA ; Kaori SAWADA ; Tatsuya MIKAMI ; Shinsaku FUKUDA ; Shigeyuki NAKAJI ; Hirotake SAKURABA
Environmental Health and Preventive Medicine 2025;30():17-17
BACKGROUND:
Many factors are associated with the development and progression of liver fat and fibrosis; however, genetics and the gut microbiota are representative factors. Moreover, recent studies have indicated a link between host genes and the gut microbiota. This study investigated the effect of patatin-like phospholipase domain-containing 3 (PNPLA3) rs738409 (C > G), which has been reported to be most involved in the onset and progression of fatty liver, on liver fat and fibrosis in a cohort study related to gut microbiota in a non-fatty liver population.
METHODS:
This cohort study included 214 participants from the health check-up project in 2018 and 2022 who had non-fatty liver with controlled attenuation parameter (CAP) values <248 dB/m by FibroScan and were non-drinkers. Changes in CAP values and liver stiffness measurement (LSM), liver-related items, and gut microbiota from 2018 to 2022 were investigated separately for PNPLA3 rs738409 CC, CG, and GG genotypes.
RESULTS:
Baseline values showed no difference among the PNPLA3 rs738409 genotypes for any of the measurement items. From 2018 to 2022, the PNPLA3 rs738409 CG and GG genotype groups showed a significant increase in CAP and body mass index; no significant change was observed in the CC genotype group. LSM increased in all genotypes, but the rate of increase was highest in the GG genotype, followed by the CG and CC genotypes. Fasting blood glucose levels increased in all genotypes; however, HOMA-IR (Homeostasis Model Assessment of Insulin Resistance) increased significantly only in the GG genotype. HDL (high-density lipoprotein) and LDL (low-density lipoprotein) cholesterol levels significantly increased in all genotypes, whereas triglycerides did not show any significant changes in any genotype. As for the gut microbiota, the relative abundance of Feacalibacterium in the PNPLA3 rs738409 GG genotype decreased by 2% over 4 years, more than 2-fold compared to CC and GG genotypes. Blautia increased significantly in the CC group.
CONCLUSION
The results suggest that PNPLA3 G-allele carriers of non-fatty liver develop liver fat and fibrosis due to not only obesity and insulin resistance but also the deterioration of gut microbiota, which may require a relatively long course of time, even years.
Humans
;
Gastrointestinal Microbiome
;
Male
;
Female
;
Membrane Proteins/metabolism*
;
Lipase/genetics*
;
Middle Aged
;
Liver Cirrhosis/epidemiology*
;
Cohort Studies
;
Genotype
;
Adult
;
Non-alcoholic Fatty Liver Disease/microbiology*
;
Polymorphism, Single Nucleotide
;
Acyltransferases
;
Phospholipases A2, Calcium-Independent
3.Background Factors Associated with the Development of Neutropenia in Breast Cancer Patients Taking Abemaciclib
Shunichiro SAITO ; Junichi KUBO ; Kenta SENNA ; Ryota MAYAMA ; Chika SATO ; Fumitaka OHASHI ; Hirokazu TABATA ; Ryu KOBAYASHI
Journal of the Japanese Association of Rural Medicine 2023;71(6):505-511
Drug therapy is necessary to treat metastatic and recurrent breast cancer. In Japan, two types of cyclin-dependent kinases (i.e., CDK4/6 inhibitors) are covered under the national healthinsurance system: palbociclib (since December 2017) and abemaciclib (since November 2018). Although there are many reports on the use and side effects of palbociclib in clinical practice, there are few such reports on abemaciclib. Therefore, we investigated the rate of neutropenia and associated background factors in patients taking abemaciclib. Of the 39 patients taking abemaciclib recruited for the study, 22 satisfied the inclusion criteria. Of these, 7 developed Grade 3 or higher neutropenia and had a significantly lower body weight and body mass index (BMI). Furthermore, the white blood cell and neutrophil counts before administration were significantly lower in the expression group compared with the non-expressing group. To predict the development of Grade 3 or higher neutropenia, the receiver operating characteristic (ROC) curve was used to calculate a BMI cut-off value of 23.9 (specificity 85.7%, sensitivity 73.3%, area under the ROC curve 0.80). Based on this cut-off value, BMI was divided into two groups (<23.9 and ≥23.9) and Fisher's exact test was performed. Patients with a low body mass index were more likely to develop Grade 3 or higher neutropenia as a result of increased dosage per kilogram body weight, while among patients with BMI < 25, those with BMI < 23.9 were at high risk of developing Grade 3 or higher neutropenia. Accordingly, caution is required in the treatment of such patients.


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