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1.
Preprint in English | medRxiv | ID: ppmedrxiv-20216572

ABSTRACT

The COVID-19 pandemic has negatively affected medical education. However, few data are available about medical students distress during the pandemic. This study aimed to provide details on how medical students had been affected by the pandemic. In this cross-sectional study, 717 medical students participated in the web-based survey. The questions included how their mental status had changed before and after the Japanese nationwide state of emergency (SOE). 65.9% (473/717) participated in the study. 29.8% (141/473) reported concerns about the shift toward online education, mostly because they thought online education could have been ineffective compared with in-person learning. Participants subjective mental health status significantly worsened after the SOE was lifted (p <.001). Those who had concerns about a shift toward online education had higher odds of having generalized anxiety and being depressed (OR 1.97, 95% CI 1.19 - 3.28), as did those who requested food aid and mental health care resources (OR 1.99, 95% CI 1.16 - 3.44; OR 3.56, 95% CI 2.07 - 6.15, respectively). Given our findings, the sudden shift to online education might have overwhelmed medical students. Thus, we recommend educators to inform learners that online learning is non-inferior to in-person learning, which could attenuate potential depression and anxiety.

2.
Medical Education ; : 111-123, 2016.
Article in Japanese | WPRIM (Western Pacific) | ID: wpr-379284

ABSTRACT

<p>Introduction: In Japan, the number of female physicians is increasing rapidly. The importance of education focused on career development and the work-life balance is increasingly being recognized.</p><p>Methods: In February 2008, we sent a questionnaire regarding the working status and life events to 1,374 female physicians who graduated from Okayama University Medical School or who were working at university-affiliated hospitals and facilities at the time of the investigation.</p><p>Results: Of the 376 respondents (26.8% response rate), we analyzed 360 respondents whose specialty is clinical medicine. Among them, 75.9% (n=269) of female physicians have partners, 70.2% (n=233) have children, and most of the female physicians experience these life events from age of 25-29 years. Although 82.1% (n=216) regarded the timing of their marriage as appropriate, 65.2% (n=144) regarded it as appropriate about having first child. Of the 174 respondents who returned to clinical work, 32.2% (n=56) returned to the same position as a full-time worker, and 27.6% (n=48) changed their position from full-time to part-time. Important factors to return to work easily, 〈understanding from their supervisors〉, 〈support from their family〉, and an appropriate amount of work were the top three reasons.</p><p></p><p>Discussion: It is important to educate medical students about career development based on the life stage and work-life balance for gender equality in medicine.</p>

3.
General Medicine ; : 76-83, 2015.
Article in English | WPRIM (Western Pacific) | ID: wpr-377071

ABSTRACT

<b>Background: </b>Japanese medical student education lacks emphasis on teaching clinical reasoning skills. To partially remedy this situation, we developed a prototypic web-based module for tutors to teach clinical reasoning. We report the medical students’ opinions of this module.<br><b>Methods: </b>Twenty-four students from two Japanese medical universities were randomly assigned to the two tutored virtual classrooms, each classroom with six students, or to the self-study group, 12 students, after taking the Internet-based Sequential Question and Answer pretest. After four weeks, each of the 24 students took the Sequential Question and Answer posttest. The entire 24 students answered a questionnaire about the Sequential Question and Answer tests; all 12 tutored students answered a questionnaire about the web-based tutored module.<br><b>Results: </b>Although both tutored and self-study Sequential Question and Answer posttest scores increased, the increases of the tutored group’s posttest compared to the self-study posttest group were not statistically significant (p = 0.066). Ninety-two percent of the students rated the Sequential Question and Answer tests as an improved way to learn case presentation and clinical reasoning. Moreover, 79% of students felt that the Sequential Question and Answer tests were an effective way to learn clinical information. The tutored students rated the web-based tutored seminars as an ‘excellent to fair’ method to learn clinical reasoning using a five-point ‘excellent to poor’ scale.<br><b>Conclusions: </b>We developed a prototypic web-based module for tutors to teach clinical reasoning to medical students. The students’ opinion supported the modular components of the web-based seminar format, Sequential Question and Answer test, and the tutoring syllabus as an effective way to improve learning clinical reasoning, case presentation, and medical information. Students also suggested refinements of the prototypic module.

4.
General Medicine ; : 13-25, 2015.
Article in English | WPRIM (Western Pacific) | ID: wpr-376292

ABSTRACT

<b>Background: </b>At present clinical reasoning skills are not systematically taught in Japanese medical universities. We developed a prototypic preliminary module for clinical tutors to introduce clinical reasoning to Japanese medical students. We hypothesized that tutored medical students would outperform self-study students.<br><b>Method: </b>Using the web-based Sequential Question and Answer test that rewarded history and differential diagnosis as proxies for clinical reasoning, we compared the pre and posttest scores of 12 randomized fifth grade tutored students at two universities during four tutor-led 1.5-hour web-based seminars using a structured syllabus to 12 randomized self-study students.<br><b>Results: </b>The tutored and self-study groups’ pretest scores were statistically similar at about 40 out of 100 weighted correct points. The tutored students’ posttest scores were 62 points, significantly greater (p = 0.007) than the pretest mean 42 points, compared to the self-study students’ posttest scores of 52 points, significantly greater (p = 0.012) than pretest mean 40 points. The difference between the two posttest groups was of borderline statistical significance (p = 0.08).<br><b>Conclusions: </b>We successfully assessed a prototypic module for tutors to introduce clinical reasoning to Japanese medical students. The tutored students achieved higher scores than the self-study students. Further research is needed to exploit the potential of our modular clinical reasoning system.

5.
Biochem Biophys Res Commun ; 443(3): 828-33, 2014 Jan 17.
Article in English | MEDLINE | ID: mdl-24342619

ABSTRACT

INTRODUCTION: Dipeptidyl peptidase-4 (DPP-4) inhibitors are incretin-based drugs in patients with type 2 diabetes. In our previous study, we showed that glucagon-like peptide-1 (GLP-1) receptor agonist has reno-protective effects through anti-inflammatory action. The mechanism of action of DPP-4 inhibitor is different from that of GLP-1 receptor agonists. It is not obvious whether DPP-4 inhibitor prevents the exacerbation of diabetic nephropathy through anti-inflammatory effects besides lowering blood glucose or not. The purpose of this study is to clarify the reno-protective effects of DPP-4 inhibitor through anti-inflammatory actions in the early diabetic nephropathy. MATERIALS AND METHODS: Five-week-old male Sprague-Dawley (SD) rats were divided into three groups; non-diabetes, diabetes and diabetes treated with DPP-4 inhibitor (PKF275-055; 3 mg/kg/day). PKF275-055 was administered orally for 8 weeks. RESULTS: PKF275-055 increased the serum active GLP-1 concentration and the production of urinary cyclic AMP. PKF275-055 decreased urinary albumin excretion and ameliorated histological change of diabetic nephropathy. Macrophage infiltration was inhibited, and inflammatory molecules were down-regulated by PKF275-055 in the glomeruli. In addition, nuclear factor-κB (NF-κB) activity was suppressed in the kidney. CONCLUSIONS: These results indicate that DPP-4 inhibitor, PKF275-055, have reno-protective effects through anti-inflammatory action in the early stage of diabetic nephropathy. The endogenous biological active GLP-1 might be beneficial on diabetic nephropathy besides lowering blood glucose.


Subject(s)
Anti-Inflammatory Agents/therapeutic use , Diabetes Mellitus, Experimental/drug therapy , Diabetes Mellitus, Type 1/drug therapy , Dipeptidyl-Peptidase IV Inhibitors/therapeutic use , Kidney Diseases/drug therapy , Adamantane/analogs & derivatives , Adamantane/pharmacology , Adamantane/therapeutic use , Animals , Anti-Inflammatory Agents/pharmacology , Cyclic AMP/urine , Diabetes Mellitus, Experimental/complications , Diabetes Mellitus, Experimental/metabolism , Diabetes Mellitus, Experimental/pathology , Diabetes Mellitus, Type 1/complications , Diabetes Mellitus, Type 1/metabolism , Diabetes Mellitus, Type 1/pathology , Diabetic Nephropathies/blood , Diabetic Nephropathies/complications , Diabetic Nephropathies/drug therapy , Diabetic Nephropathies/pathology , Dipeptidyl-Peptidase IV Inhibitors/pharmacology , Disease Models, Animal , Glucagon-Like Peptide 1/blood , Kidney Diseases/complications , Kidney Diseases/metabolism , Kidney Diseases/pathology , Kidney Glomerulus/drug effects , Kidney Glomerulus/pathology , Male , Nitriles/pharmacology , Nitriles/therapeutic use , Protective Agents/pharmacology , Protective Agents/therapeutic use , Pyrrolidines/pharmacology , Pyrrolidines/therapeutic use , Rats , Rats, Sprague-Dawley
6.
Medical Education ; : 365-375, 2014.
Article in Japanese | WPRIM (Western Pacific) | ID: wpr-378122

ABSTRACT

Introduction: In Japan, the number of female physicians is increasing rapidly. Therefore, surveying female physicians about their current working status, especially about their continuing to work, is important.<br>Methods: In September 2009, we sent a questionnaire regarding working status to 1403 female physicians who had graduated from Okayama University Medical School or who were working at university-affiliated hospitals or facilities at the time of investigation.<br>Results: Of the 420 female physicians who responded (response rate, 29.9%), 46.6% (n=191) had left their jobs at some time, and 92.4% (n=171) of them had done so within 10 years after medical school graduation. The most common reason for leaving their jobs was childbirth/childcare, and the second most common was their husband’s job transfer. Of those who had ever left their job, 82% (n=151) wished to return to work at the time of their leaving. Only 27.2% (n=74) took childcare leave.<br>Discussion: Female physicians have trouble continuing their clinical work and developing their careers while caring for children. A system should be developed to support physicians who wish to continue their clinical work during life events, such as childcare. In particular, career support during the first 10 years after graduation from medical school is extremely important.

7.
Medical Education ; : 215-220, 2012.
Article in Japanese | WPRIM (Western Pacific) | ID: wpr-375294

ABSTRACT

  Committee for Information Infrastructure in the 16th term of JSME Board Members was newly created to edit Medical Education White Book issued every four years and to provide sooner and more comprehensive information infrastructure provision. MEAL was opened as a website for medical education information since August 2011. MEAL consists of glossary, articles, books and more resources using a system like Wiki or Blog on the Web. By such technological progress, not only one–way information provision from JSME but also bidirectional communication between JSME members and committees/board members became available. Internationally, similar websites are known, such as MedEdPORTAL by AAMC (Association of American Medical Colleges), and expected to be new scholarly information added to journals.

8.
Medical Education ; : 51-53, 2010.
Article in Japanese | WPRIM (Western Pacific) | ID: wpr-362999

ABSTRACT

1) All students but 1 correctly typed the ABO blood groups, but only 33.2% of students and 63.9% of physicians properly performed cross-matching.<br>2) Most failures in cross-matching were due to the inability to detect allogeneic antibodies, but 5.2% of students and 2.9% of physicians failed to detect ABO mismatching.<br>3) Although laboratory practice is suggested to help students to solidify knowledge and comprehend principles, achieving an official goal of residency - gaining competence in performing and interpreting cross-matching independently - appeared difficult.

9.
J Clin Invest ; 118(5): 1645-56, 2008 May.
Article in English | MEDLINE | ID: mdl-18431508

ABSTRACT

Increased albuminuria is associated with obesity and diabetes and is a risk factor for cardiovascular and renal disease. However, the link between early albuminuria and adiposity remains unclear. To determine whether adiponectin, an adipocyte-derived hormone, is a communication signal between adipocytes and the kidney, we performed studies in a cohort of patients at high risk for diabetes and kidney disease as well as in adiponectin-knockout (Ad(-/-)) mice. Albuminuria had a negative correlation with plasma adiponectin in obese patients, and Ad(-/-) mice exhibited increased albuminuria and fusion of podocyte foot processes. In cultured podocytes, adiponectin administration was associated with increased activity of AMPK, and both adiponectin and AMPK activation reduced podocyte permeability to albumin and podocyte dysfunction, as evidenced by zona occludens-1 translocation to the membrane. These effects seemed to be caused by reduction of oxidative stress, as adiponectin and AMPK activation both reduced protein levels of the NADPH oxidase Nox4 in podocytes. Ad(-/-) mice treated with adiponectin exhibited normalization of albuminuria, improvement of podocyte foot process effacement, increased glomerular AMPK activation, and reduced urinary and glomerular markers of oxidant stress. These results suggest that adiponectin is a key regulator of albuminuria, likely acting through the AMPK pathway to modulate oxidant stress in podocytes.


Subject(s)
Adiponectin/metabolism , Albuminuria/metabolism , Podocytes/metabolism , AMP-Activated Protein Kinases , Adiponectin/genetics , Adult , Albumins/metabolism , Animals , Cells, Cultured , Female , Humans , Kidney Diseases/etiology , Kidney Diseases/pathology , Kidney Diseases/urine , Male , Membrane Proteins/genetics , Membrane Proteins/metabolism , Mice , Mice, Inbred C57BL , Mice, Knockout , Multienzyme Complexes/metabolism , NADPH Oxidase 4 , NADPH Oxidases/genetics , NADPH Oxidases/metabolism , Obesity/complications , Obesity/urine , Oxidative Stress , Phosphoproteins/genetics , Phosphoproteins/metabolism , Podocytes/cytology , Podocytes/pathology , Protein Serine-Threonine Kinases/metabolism , Signal Transduction/physiology , Zonula Occludens-1 Protein
10.
Article in English | MEDLINE | ID: mdl-17487826

ABSTRACT

INTRODUCTION: Macrophages play critical roles in the development of atherosclerosis and diabetic nephropathy as well as many inflammatory diseases. Angiotensin II type 1 receptor antagonists (AIIA) are beneficial for the prevention of atherosclerosis and diabetic nephropathy suggesting that angiotensin II (Ang II) promotes the development of these diseases. It has recently been reported that Ang II exerts proinflammatory actions in vivo and in vitro. This study was aimed to clarify the direct effects of Ang II on monocytes/macrophages. MATERIALS AND METHODS: PMA-treated THP-1 cells, a human monocytic leukaemia cell line, were treated with Ang II (10-6 mol/L) for 24 hours with or without AIIA (CV11974). We evaluated gene expression profiles of these cells using DNA microarray system and quantified them by real-time RT-PCR. RESULTS: DNA microarray revealed that in total 19 genes, including monocyte chemoattractant protein (MCP)-2, were up-regulated by Ang II and down-regulated by AIIA. Real-time RT-PCR showed that up-regulation of MCP-2 with Ang II is blocked by the AIIA (CV11974) but not by an AT2-receptor antagonist. CONCLUSIONS: These results suggest that Ang II directly stimulates MCP-2 expression through AT1-receptors in activated macrophages. Ang II may contribute to the persistence or amplification of microinflammation in vessel walls, heart and kidney. Vasculoprotective or renoprotective effects of AIIA might partly depend on direct anti-inflammatory effects on macrophages.


Subject(s)
Angiotensin II/pharmacology , Macrophages/physiology , Monocyte Chemoattractant Proteins/genetics , Receptor, Angiotensin, Type 1/genetics , Vasoconstrictor Agents/pharmacology , Cell Line, Tumor , Chemokine CCL8 , Chemokines/genetics , Cytokines/genetics , Gene Expression/drug effects , Gene Expression/immunology , Gene Expression Profiling , Humans , Leukemia, Monocytic, Acute , Macrophages/cytology , Macrophages/drug effects , Monocytes/cytology , Monocytes/drug effects , Monocytes/physiology , Oligonucleotide Array Sequence Analysis , Receptor, Angiotensin, Type 2/genetics
11.
Semin Nephrol ; 27(2): 153-60, 2007 Mar.
Article in English | MEDLINE | ID: mdl-17418684

ABSTRACT

The recognition that the drivers of matrix accumulation is an appropriate therapeutic target for diabetic nephropathy is now accepted by the nephrology and pharmaceutical communities. Interventions focused around transforming growth factor-beta (TGF-beta) likely will be an important area of clinical investigation in the near future. Understanding the various pathways involved in stimulating TGF-beta in the diabetic kidney is of paramount importance in devising strategies to combat the development and progression of diabetic nephropathy. In this review we highlight the major pathways involved in stimulating TGF-beta production by increased glucose levels and discuss the therapeutic implications thereof.


Subject(s)
Diabetic Nephropathies/drug therapy , Diabetic Nephropathies/metabolism , Extracellular Matrix Proteins/therapeutic use , Proteoglycans/therapeutic use , Transforming Growth Factor beta/antagonists & inhibitors , Transforming Growth Factor beta/metabolism , Animals , Blood Glucose/metabolism , Decorin , Humans , Prognosis
12.
Diabetes ; 56(2): 363-72, 2007 Feb.
Article in English | MEDLINE | ID: mdl-17259380

ABSTRACT

Microinflammation is a common major mechanism in the pathogenesis of diabetic vascular complications, including diabetic nephropathy. Macrophage scavenger receptor-A (SR-A) is a multifunctional receptor expressed on macrophages. This study aimed to determine the role of SR-A in diabetic nephropathy using SR-A-deficient (SR-A(-/-)) mice. Diabetes was induced in SR-A(-/-) and wild-type (SR-A(+/+)) mice by streptozotocin injection. Diabetic SR-A(+/+) mice presented characteristic features of diabetic nephropathy: albuminuria, glomerular hypertrophy, mesangial matrix expansion, and overexpression of transforming growth factor-beta at 6 months after induction of diabetes. These changes were markedly diminished in diabetic SR-A(-/-) mice, without differences in blood glucose and blood pressure levels. Interestingly, macrophage infiltration in the kidneys was dramatically decreased in diabetic SR-A(-/-) mice compared with diabetic SR-A(+/+) mice. DNA microarray revealed that proinflammatory genes were overexpressed in renal cortex of diabetic SR-A(+/+) mice and suppressed in diabetic SR-A(-/-) mice. Moreover, anti-SR-A antibody blocked the attachment of monocytes to type IV collagen substratum but not to endothelial cells. Our results suggest that SR-A promotes macrophage migration into diabetic kidneys by accelerating the attachment to renal extracellular matrices. SR-A may be a key molecule for the inflammatory process in pathogenesis of diabetic nephropathy and a novel therapeutic target for diabetic vascular complications.


Subject(s)
Diabetic Nephropathies/metabolism , Inflammation/genetics , Kidney/metabolism , Scavenger Receptors, Class A/metabolism , Albuminuria , Animals , Collagen Type IV/metabolism , Creatinine/urine , Diabetes Mellitus, Experimental , Diabetic Nephropathies/genetics , Gene Expression , Glycation End Products, Advanced/metabolism , Mice , Mice, Knockout , Osteopontin/metabolism , RNA, Messenger/metabolism , Receptor for Advanced Glycation End Products , Receptors, Immunologic/metabolism , Reverse Transcriptase Polymerase Chain Reaction , Scavenger Receptors, Class A/deficiency , Scavenger Receptors, Class A/genetics , Streptozocin , Transforming Growth Factor beta/metabolism
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