Conventional and Kampo Medicine Treatment for Mild-to-moderate COVID-19: A Multicenter, Retrospective, Observational Study by the Integrative Management in Japan for Epidemic Disease (IMJEDI Study-observation).

Objective Patients in whom coronavirus disease 2019 (COVID-19) was suspected or confirmed between January 1, 2020, and October 31, 2021, were enrolled from Japanese hospitals in this multicenter, retrospective, observational study. Methods Data on the treatment administered (including conventional and Kampo medicine) and changes in common cold-like symptoms (such as fever, cough, sputum, dyspnea, fatigue, and diarrhea) were collected from their medical records. The primary outcome was the number of days without a fever (with a body temperature <37°C). The secondary outcomes were symptomatic relief and the worsening of illness, defined as the presence of a condition requiring oxygen inhalation. The outcomes of patients treated with and without Kampo medicine were compared. Patients We enrolled 962 patients, among whom 528 received conventional and Kampo treatment (Kampo group) and 434 received conventional treatment (non-Kampo group). Results Overall, after adjusting for the staging of COVID-19 and risk factors, there were no significant between-group differences in the symptoms or number of days being afebrile. After performing propensity score matching and restricting the included cases to those with confirmed COVID-19 who did not receive steroid administration and initiated treatment within 4 days from the onset, the risk of illness worsening was significantly lower in the Kampo group than in the non-Kampo group (odds ratio=0.113, 95% confidence interval: 0.014-0.928, p=0.0424). Conclusion Early Kampo treatment may suppress illness worsening risk in COVID-19 cases without steroid use. Further randomized controlled studies are needed to confirm the clinical benefit of Kampo medicine for COVID-19.

Comparison of the 2011 and 2019 Kampo Medicine Curricula Across All Japanese Medical Schools.

OBJECTIVE: To examine how Kampo education in Japanese medical schools changed between 2011 and 2019. METHODS: We administered nationwide postal questionnaire surveys about current characteristics of Kampo medicine education in all 82 Japanese medical schools, directed to the persons responsible for Kampo education at each university. One survey was conducted in 2011 and one in 2019. Analysis used Welch's t-test and a chi-squared test. RESULTS: The average class meeting time was shorter in 2019 than in 2011. The proportion of class meetings that were about Kampo saw a statistically significant increase in the third year and a significant decrease in the fourth and sixth years of medical school. Curriculum standardisation, preparation of simple textbooks, and fostering Kampo medicine instructors were the primary problems in both years. The proportion of mainstream medical education contents focusing on traditional Japanese Kampo medicine did not change over time, nor did the percentage of those considering using standardised textbooks. Other changes were statistically nonsignificant. CONCLUSION: In Japanese medical schools, the number of class meetings teaching Kampo medicine has increased; however, this number is not statistically significant. Persistent problems in Kampo education, including curriculum standardisation, need to be addressed.

Changes in Japanese Medical Students' Attitudes Toward Traditional Japanese Medicine over the Course of Medical School.

OBJECTIVE: No report of newly enrolled medical students discusses their attitudes toward traditional Japanese medicine (TJM), Kampo medicine, or acupuncture and moxibustion (AM), or their changes over the course of medical school. This study evaluates these changing attitudes. METHODS: At Tokai University School of Medicine, from 2006 through 2015, 852 students were analyzed 3 times, pre-1st-year introduction Kampo lecture, pre-4th-year 6-hour lectures, and post-3-hour experience-based learning (EBL) course. The 7-item questionnaire included: general impression about Kampo medicine, interest, learning motivation, future involvement, and image, interest in AM, and learning motivation. RESULTS: Their attitudes toward TJM became positive during the 3 years even without TJM education. The 4th-year TJM lectures and EBL course significantly changed their attitudes toward more positive. Females' attitudes were more positive regarding TJM from the 1st year than were the males which became more positive after the EBL course. Students with TJM learning or work experience had positive attitudes from their 1st year and throughout medical school. Students with less positive attitudes became more active in TJM and positive at graduation. CONCLUSION: Appropriate TJM education and standard medical education in preclinical years of medical school has helped make students' attitudes toward Kampo medicine and AM more positive.

"Kampo-sommelier Practice": A Trial for an Active Learning Program in Kampo (Japanese Traditional) Medicine.

OBJECTIVE: This study aimed to assess the effectiveness of Kampo-sommelier practice, an active learning program on crude drugs used in Kampo formulations. METHODS: The participants were fourth-year Tokai University School of Medicine students as of 2017. Eighteen small teams attended a 20-minute Kampo-sommelier practice session and were provided 10 kinds of crude drugs (Licorice, Cinnamon, Ginger, etc.) in three forms, original, cut, and powdered, while blinded to the drugs. Each team was asked to distinguish each drug in terms of form, scent, flavor, and color with reference to described characteristics. The ability to match the names of the drugs with their descriptions was assessed in the participants one month later, and also in human science "A" and medicine "B" students, without prior education, and pharmacy "C" students, with professional education. RESULTS: The 117 participants received an average score of 6.2 ± 2.4 (mean ± S.D.) out of 10, which was significantly higher than 3.4 ± 1.8 in 97 "A" students and 3.1 ± 2.4 in 85 "B" students and lower than 8.4 ± 2.1 in 135 "C" students (p < 0.05 for all). CONCLUSIONS: The effectiveness of this team-based learning approach is suggested by the significantly higher scores of the participants.

The actual conditions of traditional Japanese Kampo education in all the pharmacy schools in Japan: a questionnaire survey after the enforcement of the new national 2015 core curriculum.

BACKGROUND: To investigate the present status of Kampo education, which has still not been elucidated, after the introduction of the new core national curriculum of 2015 into nationwide pharmacy education, in all 74 pharmacy schools in Japan. METHODS: A postal questionnaire survey was conducted from August 2015 to January 2016. The completed questionnaires were returned by mail. Web-based syllabi were also investigated to ascertain the detailed lecture curricula in each school. Descriptive analyses were conducted without statistics. RESULTS: A total of 74 questionnaires were collected (response rate, 100%). In 2015, the numbers of clinical Kampo classes as required subjects during the 6 years of regular pharmacy school education ranged from 0 to 36 (median, 13; mean, 11.8 ± 7.6). Of the 74 schools, 49 schools (66%) provided Kampo education from a clinical standpoint. Pharmacists employed in pharmacies and physicians taught most of these classes. The major problems to be solved first are: selecting and retaining teachers to teach clinical Kampo medicine (43 of 74 schools, 58%), preparing standard textbooks (37 schools, 50%), and improving the environment for practical Kampo training (30 schools, 41%). CONCLUSIONS: Curricula for teaching Kampo medicine significantly differ at each of the 74 Japanese pharmacy schools. In addition to selecting teachers who can adequately teach clinical Kampo medicine, improving training environments, and nationwide standardization of the curricula and textbooks are critical.

Clinical Reasoning in Kampo Education for Teaching Kampo Beginners.

OBJECTIVES: Japanese traditional (Kampo) medicine has its own theories that are quite different from those of Western medicine. For many students and medical doctors, mastering it is a painstaking task. We examined the similarities in clinical reasoning between Western and Kampo medicine, and developed an easy-to-understand method to teach Kampo theories enabling physicians to make accurate diagnoses and choose suitable Kampo formulae. METHODS: We developed a teaching method for Kampo medicine along clinical reasoning for beginners and evaluate its availability and effectiveness in an actual team-based learning class. RESULTS: A Kampo diagnostic procedure similar to that in Western medicine was developed. In this method, some Kampo formulae, are chosen according to the chief complaint, concomitant symptoms, characteristics, and distribution and exacerbation factors. Subsequently, from a point of view of the chosen Kampo formulae, patients' signs and symptoms are matched to find the most suitable formula. Students chose the same suitable formula among 6 groups and gained confidence to choose the correct Kampo formulae. CONCLUSIONS: A new Kampo educational method was developed that raises students' and physicians' confidence in making diagnoses and prescribing Kampo medicines.

Medical residents' interest in and current status of Japanese postgraduate education in acupuncture and moxibustion: a follow-up survey.

BACKGROUND: Japanese traditional medicine (Kampo medicine) is an important subject in Japanese medical schools. Acupuncture and moxibustion (AM), essential categories of Kampo medicine, are taught in a few medical schools today. However, the current state of postgraduate AM education is unknown. OBJECTIVE: To compare medical residents' awareness of AM before their AM education in the 4th year of medical school with that after completion of their 2-year postgraduate medical residency. METHODS: We conducted a postal questionnaire survey of medical residents at the end of their 2-year residency. We required a signature on this questionnaire so that we could examine for changes in their awareness of AM with those determined by similar, signed, former questionnaire surveys conducted before and at the end of their 4th-year AM lectures in medical school (reported previously). The completed questionnaires were returned by mail or facsimile. RESULTS: Among 93 residents, there were 72 (77.4%) effective responses. Only three residents (4%) had opportunities to learn AM during residency. Among the 68 residents who were not afforded the opportunity to do so, after completing their two-year residency, 32(47%) stated that they would like to study AM. Interest in AM was significantly less than that of the proportion of medical students (81%) who were initially interested in AM when surveyed just before their fourth year lectures on AM. CONCLUSIONS: Postgraduate AM education for medical residents appears to be relatively scarce in Japan. Moreover, medical residents' levels of interest in AM were lower than those demonstrated before their 4th-year AM lectures in medical school.

The education of traditional Japanese (Kampo) medicine: surveys of training hospitals and residents.

BACKGROUND: Japanese physicians prescribe Kampo medicine, but Kampo education is not standardized. We surveyed training hospitals and residents to identify problems and suggest solutions to promote Kampo education during and after residency. METHODS: This was a double questionnaire survey of 1011 training hospitals in Japan and 93 Tokai University School of Medicine graduates of 2011. RESULTS: There were 816 effective responses (81%) from the training hospitals. Most instructors (84%) thought physicians should have Kampo clinical skills; 67% thought positively about introducing Kampo education into clinical training; 23% of the hospitals provided Kampo education; 70% of instructors at hospitals without Kampo education indicated the lack of Kampo instructors, 16% lack of time, and 7% no necessity for Kampo education; hospitals permitted Kampo education through voluntary study (42%), lectures sponsored by Kampo manufacturers (35%), and study sessions with other hospitals (32%); independent study sessions (10%); smaller hospitals were less active in Kampo education than larger ones. The survey of residents had 72 effective responses (77%): 91% were interested in Kampo medicine; 96% thought it worth learning; 31% could learn it during residency; 52% were not satisfied with the training, 83% wanted to learn it; 73% thought it should be introduced into the curricula; 93% prescribed Kampo medicine, and residents who learned it prescribed it more; 48% were reluctant to prescribe it after residency; 89% thought Western and Kampo medicine should be integrated. CONCLUSIONS: Instructors knew Kampo education was needed, but little of it was taught, especially in small hospitals, because of the lack of Kampo instructors. Residents recognized the need for Kampo medicine and were motivated to learn it. Kampo medicine was mostly prescribed because instructors suggested it. Because of the limited opportunities to learn Kampo medicine, it should be taught during residency. In small hospitals, cooperation with other hospitals could be a solution to teach Kampo medicine.

Educational Importance of Acupuncture and Moxibustion: A Survey at the Tokai University School of Medicine Japan.

OBJECTIVE: Acupuncture and moxibustion are categories of Japanese traditional medicine (Kampo). Precise teaching of Kampo is one of the important issues in medical education, and therefore acupuncture and moxibustion education has been applied to students in Tokai University School of Medicine. To investigate and compare the awareness the medical students have of acupuncture and moxibustion before and after the education, we conducted questionnaire surveys. METHODS: The questionnaires were distributed to 117 fourth-year students before and after the education. RESULTS: Of the 117 students issued surveys, 111 responded before, 115 after, and 109 both before and after the education program. Before the education, 79% of the respondents were interested in acupuncture and moxibustion, and 67%, 73%, and 80% thought they were effective, necessary, and worth learning. These results were increased to 92%, 95%, 94% and 97% after the education, respectively (p<0.001 in all four comparisons). Although 9% said they would perform acupuncture and moxibustion in their routines proactively before the education, after the education this increased to 24% (p<0.001), and 43% supposed that they would definitely introduce patients to acupuncturists. CONCLUSION: Medical students' awareness improved after the education, which demonstrated importance of the acupuncture and moxibustion education in medical school.

Preparation of Clinically Useful Sennoside-reduced Rhubarb.

OBJECTIVE: The aim of this study was to develop a method of removing sennoside to reduce the cathartic effect of rhubarb while conserving its other pharmacological activities. METHODS: Rhubarb powder was steam autoclaved at 121°C and 0.14 MPa for 20, 60, or 120 minutes, and HPLC analysis was conducted to determine levels of rhubarb components. Mice were fed non-autoclaved or 20-minute-autoclaved rhubarb extracts. Feces were collected and weighed over a 24-hour period. India ink was orally administered to determine the distance of fecal migration through the intestinal tract. RESULTS: Autoclaving 20, 60, and 120 minutes decreased sennoside A and B to trace levels but only autoclaving 20 minutes conserved most of the (+)-catechin, (-)-epicatechin, and (-)-epicatechin gallate contents (i.e., 69%, 90%, 88%, respectively). Therefore only rhubarb autoclaved for 20 minutes was used in subsequent experiments. Fecal output (in g) in mice treated with water (control), autoclaved rhubarb, and non-autoclaved rhubarb was 2.78 ± 0.07, 3.30 ± 0.13 (p = 0.348), and 3.81 ± 0.07 (p = 0.005). India ink migration was far less in mice treated with autoclaved rhubarb vs non-autoclaved rhubarb. CONCLUSION: Steam autoclaving the rhubarb for 20 minutes reduces sennoside levels and its cathartic activity while conserving its other pharmacological activities.

Lipoprotein kinetics in male hemodialysis patients treated with atorvastatin.

BACKGROUND AND OBJECTIVES: In vivo metabolism of atherogenic apolipoprotein B (apoB)-containing lipoproteins is severely impaired in patients undergoing hemodialysis (HD), resulting in markedly prolonged residence times of these particles. It is unclear whether treatment with statins improves LDL kinetics in HD patients as is known for the general population. Therefore, this kinetic study assessed apoB-containing lipoproteins in these patients. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: Kinetic measures were analyzed with stable-isotope technology in six men undergoing HD before and after 3 months of daily administration of 10 mg of atorvastatin. Patients were 18-65 years of age, had LDL cholesterol levels between 90 and 200 mg/dl, and had been treated with HD for >6 months. They consumed a standardized isocaloric diet for 3 days before analysis. Fractional catabolic rates (FCRs) and production rates of very-low-density lipoprotein (VLDL)-apoB, intermediate-density lipoprotein-apoB, and LDL-apoB were determined using multicompartment modeling after plasma lipoprotein separation, precipitation of apoB, and determination of tracer-to-tracee ratios using mass spectrometry. RESULTS: Plasma concentrations of VLDL- and LDL-apoB were significantly lower (mean ± SD, 7.77±2.62 versus 11.27±6.15 mg/dl, P<0.05; 56.9±23.9 versus 84.0±21.1 mg/dl, P=0.03) and their FCRs were significantly higher (7.20±3.08 versus 5.20±2.98 days(-1), P<0.05; 0.851±0.772 versus 0.446±0.232 days(-1), P<0.05) after 3 months of atorvastatin treatment. Accordingly, the residence times in plasma of VLDL- and LDL-apoB were significantly lower after treatment (0.14 versus 0.19 day and 1.2 versus 2.2 days, respectively). CONCLUSION: Lower plasma concentrations and improved kinetics of atherogenic lipoproteins were observed in HD patients after administration of low-dose atorvastatin.

Effects of atorvastatin on nuclear magnetic resonance-defined lipoprotein subclasses and inflammatory markers in patients with hypercholesterolemia.

AIM: Information about the effects of HMG-CoA reductase inhibitor (statin) treatment on lipoprotein subclasses has been severely limited. Nuclear magnetic resonance (NMR) spectrometry has emerged as a new methodology to quantify lipoprotein subclass concentrations. In the present study, we attempted to evaluate the hypolipidemic effects of atorvastatin utilizing this method. METHODS: Twenty-six patients were administered with atorvastain 10 mg daily for 4 weeks. Lipoprotein subclasses were measured by nuclear magnetic resonance (NMR) spectroscopy. Inflammation markers, including C-reactive protein (CRP), interleukin-6 (IL-6), and monocyte chemotactic protein-1 (MCP-1), were also determined. RESULTS: Additional to a marked reduction of LDL-C (-43%), atorvastatin treatment significantly decreased TG, RLP-C, apoC-II, apoC-III, and apoE by 27%, 49%, 25%, 15%, and 28%, respectively. NMR analysis revealed marked reductions of all LDL subclasses, resulting in a significant reduction of LDL particle number as well as an increase in LDL particle size. Further, some VLDL were decreased and HDL particle size was increased by atorvastatin. Among inflammation markers, MDA-LDL and IL-6 were marginally to significantly decreased. CONCLUSION: In addition to a strong LDL-C lowering function, atorvastatin exerts beneficial effects on TG-rich lipoproteins and inflammation in hypercholesterolemic patients.

Increased remnant lipoprotein in patients with coronary artery disease--evaluation utilizing a newly developed remnant assay, remnant lipoproteins cholesterol homogenous assay (RemL-C).

AIM: Remnant lipoprotein is an emerging risk factor for coronary artery disease (CAD); however, the development of a specific remnant lipoprotein assay has struggled due to its heterogeneous nature. This study aimed to evaluate the clinical importance of a newly developed assay for remnant lipoprotein, RemL-C, in patients with CAD. METHODS: This assay utilizes surfactant and phospholipase-D to selectively degrade and solubilize remnant lipoprotein. One hundred and sixty consecutive CAD patients who underwent coronary catheterization were recruited. RESULTS: Remnant liporotein, RemL-C, was significantly higher in CAD patients (p< 0.001). Additionally, TG, hs-CRP, ICAM-1, VCAM-1, and homocysteine were significantly higher, but HDL-C and adiponectin were lower with LDL-C unchanged. Since RemL-C levels correlated with plasma TG levels, two subgroups, normotriglycedemic and normolipidemic CAD groups, were extracted. In both groups, RemL-C was still significantly higher than controls. HDL-C, but not RemL-C, was associated with the severity of CAD. RemL-C significantly correlated with TG-rich lipoproteins, in particular VLDL and IDL, when limited to normolipidemic CAD patients. CONCLUSION: Remnant lipoprotein, measured by RemL-C, was increased in CAD patients independent of TG levels, indicating impaired remnant lipoprotein metabolism in these patients. CAD severity was associated with HDL-C, but not with remnant lipoprotein, indicating differential roles of lipoproteins in the development of coronary atherosclerosis. This study therefore provides clinical significance to assess coronary risk by measuring RemL-C, particularly among patients with normal TG levels.