Analysis Of Japan Research Articles

Short-Term and Intermediate Efficacy of Tacrolimus for Active Ulcerative Colitis: A Single-Center Retrospective Analysis in Japan

Short-Term and Intermediate Efficacy of Tacrolimus for Active Ulcerative Colitis: A Single-Center Retrospective Analysis in Japan

Informal Caregivers’ Benefits of Residing in a Neighborhood with High Social Participation: A Multilevel Analysis in Japan

Informal Caregivers’ Benefits of Residing in a Neighborhood with High Social Participation: A Multilevel Analysis in Japan

An Analysis of Japan’s Diplomacy towards Israel since Shinzo Abe Era: Based on the Theoretical Framework of Neoclassical Realism

Neoclassical realism theory holds that a nation’s foreign policy is the result of international systemic stimuli intervened by domestic variables. It provides a suitable theoretical framework for analysing the changes of Japan’s foreign policy towards Israel. For a long time after World War II, the relations between Japan and Israel remained cold mainly under the system constraints and its contradictions with domestic variables. However, since Abe’s second term in power, Japan has significantly strengthened its diplomatic relations with Israel. The changes both in the Middle East regional system and the global system have stimulated the adjustment of Japan’s policy while the domestic variables have responded to systemic stimuli actively. Japan’s strengthening of relations with Israel is reflected in several aspects, including high-level political visits, innovative industrial cooperation, and people-to-people cultural diplomacy. On the whole, Japan’s development of relations with Israel serves the interests of both countries and has had a certain impact on the international system. However, there are obvious limitations to Japan’s intensifying diplomacy with Israel.

Regional Analysis and Evaluation Method for Assessing Potential for Installation of Renewable Energy and Electric Vehicles

Many countries are adopting renewable energy (RE) and electric vehicles (EVs) to achieve net-zero emissions by 2050. The indicators of RE and EV potentials are different. Decision-makers want to introduce RE and EVs; however, they need a method to find suitable areas. In addition, this is required in the time-series analysis to provide a detailed resolution. In this study, we conducted a time-series analysis in Japan to evaluate suitable areas for the combined use of RE and EVs. The results showed the surplus RE areas and shortage RE urban areas. The time-series analysis has quantitatively shown that it is not enough to charge EV batteries using surplus RE. Moreover, a ranking methodology was developed for the evaluation based on electric demand and vehicle numbers. This enables the government’s prioritization of prefectures and the prefectures’ prioritization of municipalities according to their policies.

Efficacy of Molding Helmet Therapy following Suturectomy for Craniosynostosis: A Single-center, Retrospective Analysis in Japan

Craniosynostosis limits normal cranial growth, significantly affecting the growth and development of children. This increase in intracranial pressure results in significant cosmetic and functional losses. This study investigated the efficacy of combining molding helmets with suturectomy for craniosynostosis. Patients who underwent suturectomy and molding helmet therapy for craniosynostosis at a single institution between 2017 and 2024 were included. Changes in cephalic index (CI) and cranial vault asymmetry index (CVAI) were analyzed. A total of 14 patients (12 males, 2 females) were included, with a median age of 4.5 months (2–6 mo). The affected sutures were as follows: sagittal (n=8), bilateral coronal (n=4), unilateral coronal (n=1), and lambdoid (n=1) sutures. The median duration of postoperative molding helmet therapy was 44.5 weeks. For the sagittal suture group, the median preoperative CI, median postoperative CI, and rate of change were 72.0 (68.3–85.8), 77.0 (72.1–86.4), and 0.0646, respectively. For the bilateral coronal suture group, measurements for the same parameters were 104.0 (99.3–110.0), 92.5 (89.1–94.5), and 0.1114, respectively. For the unilateral coronal group, the measured parameters were 89.0 (87.7–91.2), 84.0 (81.2–87.1), and 0.059, respectively. Although all suture types showed improvement in cranial shape, with sagittal synostosis showing the most significant change, our findings did not support the added benefit of molding helmet therapy. Overall, the study suggests that suturectomy is a crucial first step in craniosynostosis treatment, leading to improvements in cranial morphology and growth.

Effectiveness and Safety of Matrix-Associated Autologous Chondrocyte Implantation for the Treatment of Articular Cartilage Defects: A Real-World Data Analysis in Japan

Background: The effectiveness and safety of matrix-associated autologous chondrocyte implantation with an autologous periosteal flap (pMACI) remain unclear. The Japanese Ministry of Health, Labor, and Welfare requires postmarketing surveillance of all patients undergoing pMACI using the tissue-engineered product JACC. Purpose: To evaluate the effectiveness and safety of pMACI for large articular cartilage defects (≥4 cm2) in the knee joint using real-world data analysis. Study Design: Case series; Level of evidence, 4. Methods: Data were collected from patients who underwent pMACI between 2012 and 2019, with 2 years of follow-up. The primary outcomes were the Lysholm knee score and Knee injury and Osteoarthritis Outcome Score (KOOS) at 6, 12, and 24 months. Adverse events were assessed by physical examination, magnetic resonance imaging, and/or arthroscopy. Results: Overall, 232 knees in 225 patients who presented with trauma (198 knees) or osteochondritis dissecans (34 knees) in the medial (132 knees) and lateral (44 knees) femoral condyle, patella (25 knees), trochlea (86 knees), and tibial plateau (4 knees) were included. The mean age of the patients was 40.9 ± 15.0 years, with mean cartilage defects of 5.6 ± 2.4 cm2 in size. Concomitant surgeries, such as osteotomy (50 knees), ligament reconstruction (27 knees), meniscal procedures (28 knees), osteochondral autograft transplantation (24 knees), and microfracture (14 knees), were performed in 113 (48.7%) knees. The minimal clinically important difference in the Lysholm knee score and KOOS Symptoms subscale was achieved in 79.7% and 63.5% of patients, respectively, and the Patient Acceptable Symptom State was achieved in 90.1% and 73.7%, respectively. Substantial clinical benefit was achieved in the KOOS Sports/Recreation and Quality of Life subscales at 39.6% and 37.8%, respectively. Knees that underwent concomitant microfracture had significantly worse KOOS values than the remainder of the cohort. Complications, including effusion (16.8%), graft delamination (14.7%), knee contracture (9.1%), graft hypertrophy (8.2%), and ossification (3.4%), were observed in 86 (37.1%) knees. Osteochondritis dissecans was significantly associated with graft hypertrophy and ossification, whereas concomitant surgery was significantly associated with delamination and contracture. Treatment failure required additional cartilage procedures in 11 (4.7%) knees. Conclusion: Treatment of large cartilage defects (≥4 cm2) with pMACI resulted in improved outcome scores in approximately 75% of patients. However, complications occurred in one-third of patients, and 4.7% required reoperation.

Kidney and Patients Outcomes of Pure Lupus Nephritis: A Nationwide Analysis in Japan

Kidney and Patients Outcomes of Pure Lupus Nephritis: A Nationwide Analysis in Japan

The impact of adverse childhood experiences on adult physical, mental health, and abuse behaviors: A sex-stratified nationwide latent class analysis in Japan

Adverse childhood experiences (ACEs) have been reported to detrimentally impact physical and mental health. While experiencing multiple ACEs is common, previous research primarily assessed ACEs by their total count, neglecting the impacts of different experience types. Furthermore, sex-based differences in ACEs and their influences remain unclear. This study employed Latent Class Analysis (LCA) to uncover patterns of ACEs with consideration for sex differences, aiming to elucidate their effects on adult physical and mental health. A geographically nationally representative dataset from the “Japan COVID-19 and Society Internet Study (JACSIS)” conducted in 2022 was used. 13,715 men and 14,327 women retrospectively reported their experiences across fifteen ACEs. The analysis revealed four distinct ACE patterns for both sexes: a Multiple Adversities class with a wide range of severe ACEs, a Psychological Abuse class experiencing emotional abuse at home and bullying at school, a Poverty class facing economic hardships, and a Low Adversities class with the fewest ACEs. Multinomial logistic regression analysis indicated that more severe patterns of exposure correlated with heightened adverse adult outcomes. However, the extent of these impacts varied by sex and ACE pattern. For instance, men in Multiple Adversities and Psychological Abuse classes exhibited higher tendencies towards conducting physical and psychological abuse behaviors. While ACEs in men were linked to both underweight (in cases of psychological abuse) and obesity (across all classes), women with ACEs generally leaned towards higher body weight. These findings highlight the importance of developing support strategies sensitive to sex differences and the specific content of ACEs.

Insights from a multicenter nationwide cohort analysis in Japan on the association of underlying conditions and pharmacological interventions with COVID-19 disease severity

BackgroundIn 2019, coronavirus disease 2019 (COVID-19) emerged in China, spreading globally with significant impacts in Japan, including the Delta and Omicron variants. The research identified risk factors such as age, chronic diseases, and lifestyle choices, emphasizing the need for further study on the association between underlying health conditions, treatments, and COVID-19 severity in Japan.MethodsThis study used a nationwide medical database to analyze the association between COVID-19 underlying conditions and pharmacological interventions to identify risk factors for disease severity. We examined the Japanese COVID-19 dataset from Medical Data Vision, selecting patients diagnosed with COVID-19 between January 2020 and December 2022. Logistic regression was used to calculate the odds ratios (ORs) for intensive care unit treatment- or ventilator use-related risk factors.ResultsAmong 650,317 patients (mean age: 52.1 ± 20.9 years; male individuals: 324,127; female individuals: 326,190), factors that significantly increased the severe disease risk (OR [95% confidence interval]) included age > 65 years (1.31 [1.27–1.36]), hypertension (1.34 [1.28–1.41]), cardiovascular disease (1.74 [1.67–1.81]), and use of beta-blockers (2.09 [2.00–2.17]), calcium blockers (1.97 [1.89–2.06]), angiotensin-converting enzyme inhibitors (1.41 [1.33–1.49]), low-dose aspirin (1.38 [1.32–1.45]), and insulin (7.14 [6.87–7.43]). Conversely, factors that reduced the severe disease risk included female sex and the use of sulfonylureas, dipeptidyl peptidase 4 inhibitors, glucagon-like peptide-1 receptor agonists, and alpha-glucosidase inhibitors.ConclusionsPatients using cardiovascular medications faced a higher risk, whereas those receiving diabetes treatment had a lower risk. Appropriate pharmacotherapy and risk factor identification can aid in the prevention of severe COVID-19.

Comparison of Clinical Outcomes in Patients with Acute Lower Limb Ischaemia Undergoing Endovascular Therapy and Open Surgical Revascularisation: A Large Scale Analysis in Japan

The recommended revascularisation methods for acute limb ischaemia (ALI), which is caused by embolism and atherosclerotic thrombosis, include endovascular therapy (EVT) and open surgical revascularisation (OSR); however, treatment choices based on patient characteristics remain controversial. This retrospective analysis from the Japanese Registry of All Cardiac and Vascular Diseases - Diagnosis Procedure Combination database (April 2012 to March 2020) evaluated differences in clinical outcomes and identified prognostic predictors in patients with ALI. This study analysed 10 977 patients with lower limb ALI. EVT was defined as catheter directed thrombolysis, percutaneous thrombectomy, or percutaneous angioplasty with balloon dilatation and or stenting. OSR was defined as Fogarty thrombectomy, bypass surgery, or thromboendarterectomy. The EVT and OSR groups were compared after propensity score matching (PSM) considering ten clinical covariates. The EVT group had more patients at higher risk of atherosclerotic disease than the OSR group. The OSR group had more patients at a higher risk of embolism, including atrial fibrillation and atrial flutter, than the EVT group. In the EVT group, 20.4% of patients underwent catheter directed thrombolysis using urokinase, the only thrombolytic agent available in Japan that is covered under insurance. After PSM, in hospital mortality (odds ratio [OR] 1.33, 95% confidence interval [CI] 1.11 - 1.59; p = .002), major amputation rate (OR 1.43, 95% CI 1.19 - 1.72; p < .001), major amputation and or death rate (OR 1.42, 95% CI 1.24 - 1.62; p < .001), and total hospitalisation cost (1.16 vs. 0.97 million yen; p < .001) were statistically significantly higher in the EVT group than in the OSR group. In interaction analyses, peripheral artery disease (PAD) was a factor responsible for reducing OSR efficacy in terms of major amputation and or death rate (with PAD, OR 0.94, 95% CI 0.68 - 1.29; without PAD, OR 1.56, 95% CI 1.34 - 1.82; p = .004). In Japan, EVT was a less effective primary treatment for patients with ALI than OSR, except for those with PAD.

A Comparative Study of Access Analysis Service Utilization on Japanese Medical Institutions' Websites with GDPR-Compliant Cases.

The browsing history of a medical institution's website can potentially reveal or identify information about the health condition of the website visitor through browser cookies and fingerprints. In Japan, although the Personal Information Protection Law was revised in April 2022, the use of access analysis services to collect browsing history on medical institution websites has not been investigated. Therefore, this study investigates the actual usage of access analysis services on Japanese medical institution websites and compares it with the current situation in France, which follows the General Data Protection Regulation. The results revealed that the larger the size of the hospital, the higher the percentage of adoption of access analytics services in Japan. However, the implementation of a system for obtaining consent for the use of access analysis in Japan was found to be poor compared to that of French medical institutions. While access analysis tools are used in the websites of several medical institutions in Japan, the implementation of the process of obtaining consent to acquire browsing history is poor.

Analysis of Japan’s Carbon Neutrality Goals and Prospects

Analysis of Japan’s Carbon Neutrality Goals and Prospects

The inguinal lymph nodes as regional lymph nodes in anal canal adenocarcinomas: a nationwide database analysis in Japan.

To establish if it is appropriate to treat the inguinal lymph node (LN) of anal canal adenocarcinoma (ACA) as the intermediate LN according to the Japanese classification. The characteristics of 346 ACA patients were examined from the nationwide registry. The effect of LN dissection was evaluated using the therapeutic value index (TVI). Furthermore, the prognostic classification ability of N factors and stage was evaluated using Akaike's information criterion (AIC), the concordance index (C-index), and the 5-year overall survival (OS) rate. The rate of metastasis of the inguinal LN was 7.5% and the TVI was 3.05. Evaluation using AIC and the C-index showed better results when the inguinal LN was treated as the intermediate LN. The 5-year OS rate for 66 patients with perirectal or intermediate LN metastasis, 7 with inguinal LN metastasis, and 13 with inguinal and perirectal or intermediate LN metastasis were 49.2%, 68.6%, and 47.6%, respectively. When inguinal LN metastases were treated as N3, the 5-year OS rates were 66.7% for those with T1N3 and T2N3 disease, and 49.2% for those with T3N3 disease. The inguinal LN of ACA was evaluated and staged as the intermediate LN to devise an appropriate treatment strategy.

Robotic versus open and laparoscopic pelvic exenterations for pelvic cancer: a multicenter propensity-matched analysis in Japan.

Pelvic exenteration (PE) is the last resort for achieving a complete cure for pelvic cancer; however, it is burdensome for patients. Minimally invasive surgeries, including robot-assisted surgery, have been widely used to treat malignant tumors and have also recently been used in PE. This study aimed to evaluate the safety and efficacy of robot-assisted PE (RPE) by comparing the outcomes of open PE (OPE) with those of conventional laparoscopic PE (LPE) for treating pelvic tumors. Following the ethics committee approval, a multicenter retrospective analysis of patients who underwent pelvic exenteration between January 2012 and October 2022 was conducted. Data on patient demographics, tumor characteristics, and perioperative outcomes were collected. A 1:1 propensity score-matched analysis was performed to minimize group selection bias. In total, 261 patients met the study criteria, of whom 61 underwent RPE, 90 underwent OPE, and 110 underwent LPE. After propensity score matching, 50 pairs were created for RPE and OPE and 59 for RPE and LPE. RPE was associated with significantly less blood loss (RPE vs. OPE: 408mL vs. 2385ml, p < 0.001), lower transfusion rate (RPE vs. OPE: 32% vs. 82%, p < 0.001), and lower rate of complications over Clavien-Dindo grade II (RPE vs. OPE: 48% vs. 74%, p = 0.013; RPE vs. LPE: 48% vs. 76%, p = 0.002). This multicenter study suggests that RPE reduces blood loss and transfusion compared with OPE and has a lower rate of complications compared with OPE and LPE in patients with locally advanced and recurrent pelvic tumors.

Exploring the Pedagogical Potential of Schenkerian Analysis in Japan: A Case Study on Teaching with Schenkerian Graphs

Exploring the Pedagogical Potential of Schenkerian Analysis in Japan: A Case Study on Teaching with Schenkerian Graphs

Analysis of the impact of obesity on the prognosis of IgA nephropathy according to renal function and sex.

Few studies have observed the direct effect of obesity on renal prognoses in immunoglobulin A nephropathy (IgAN) or separately evaluated its effects according to sex. We aimed to evaluate the direct and indirect effects of obesity on the renal outcomes of IgAN and observe these effects separately according to renal function and sex. We extracted patients with body mass index (BMI) descriptions from a multicenter retrospective cohort analysis in Japan, and excluded those with < 30 days of follow-up, diabetes mellitus, and steroid treatment. Patients were divided into normal (n = 720; 18.5 ≤ BMI < 25) and obese (n = 212; BMI ≥ 25) groups, which were then compared. The endpoints were a 1.5-fold increase in serum creatinine levels and the initiation of renal replacement therapy. The obese group was older, included more males, and was more likely have hypertension, dyslipidemia, proteinuria, tubular atrophy, and lower renal function than the normal group. Patients with an eGFR < 60mL/min/1.73m2 had well-matched characteristics between the groups; however, hypertension, low high-density lipoprotein cholesterol, and hypertriglyceridemia were more common in the obese group. Obesity contributed to tubular atrophy, even when adjusted for renal function. In addition, it contributed to proteinuria only in females. However, obesity itself was not a significant prognostic factor. Although no independent effect on renal prognosis was observed during the study period, the obese group had more risk factors for IgAN progression and obesity contributed to tubular atrophy and female proteinuria. Our results suggest that separately analyzing the prognostic effect of obesity according to sex is important.

Effects of the Coronavirus disease 2019 pandemic on mortality in patients with lung cancer: A multiple mediation analysis in Japan.

COVID-19 pandemic has had a substantial effect on healthcare systems worldwide, including the care of patients with lung cancer. The impact of healthcare disruptions and behavioral changes on lung cancer mortality is unclear. Patients newly diagnosed with lung cancer during the pandemic period 2020-2021 were compared with those diagnosed in the pre-pandemic 2018-2019. The primary outcome was all-cause mortality within 1 year. Cox proportional hazards regression analyses were conducted to estimate the changes in mortality between pandemic and pre-pandemic. Multiple mediation analyses were performed to determine the factors that accounted for the changes in mortality. In total, 5785 patients with lung cancer were included in this study. The overall mortality rate was significantly higher during the pandemic compared with the pre-pandemic (crude hazard ratio [HR]: 1.19, 95% confidence interval [CI]: 1.05, 1.29). Mediation analyses showed that not receiving tumor-directed treatment, diagnosis at an older age, and decreased diagnosis through cancer screening significantly accounted for 17.5% (95%CI: 4.2, 30.7), 13.9% (95%CI: 0.8, 27.0), and 12.4% (95%CI: 3.0, 21.8) of the increased mortality, respectively. This study revealed a significant increase in mortality risk in patients with lung cancer who have not received tumor-directed treatment or cancer screening, despite potential selection bias for follow-up status. Efforts should be focused on ensuring timely access to healthcare services, optimizing treatment delivery, and addressing the unique challenges faced by patients with lung cancer during the pandemic to mitigate the impact of the pandemic on lung cancer outcomes and provide clinical care to vulnerable populations.

Bayesian maximum entropy interpolation analysis for rapid assessment of seismic intensity using station and ground motion prediction equations

In this paper, we explored the combination of seismic station data and ground motion prediction equations (GMPE) to predict seismic intensity results by using Bayesian Maximum Entropy (BME) method. The results indicate that: 1) In earthquake analysis in Japan, soft data has predicted higher values of intensity in disaster areas. BME corrected this phenomenon, especially near the epicenter. Meanwhile, for earthquakes in the United States, BME corrected the erroneous prediction of rupture direction using soft data. 2) Compared with other spatial interpolation methods, the profile results of Japan earthquake and Turkey earthquake show that BME is more consistent with ShakeMap results than IDW and Kriging. Moreover, IDW has a low intensity anomaly zone. 3) The BME method overcomes the phenomenon that the strength evaluation results do not match the actual failure situation when the moment magnitude is small. It more accurately delineates the scope of the disaster area and enriches the post-earthquake processing of disaster area information and data. BME has a wide range of applicability, and it can still be effectively used for interpolation analysis when there is only soft data or few sites with data available.

Analysis of Japan's Dual Influence on Southeast Asian Infrastructure Diplomacy

This paper examines the dual influence of Japan and China in infrastructure diplomacy in Southeast Asia since 2015. The competition between the two countries in infrastructure diplomacy in Southeast Asia is mainly manifested in investment and financing modes and high-speed rail projects, aiming at promoting their domestic economies and expanding geopolitical influence. This competition has brought economic dividends to Southeast Asian countries, but it has also increased the pressure on these countries to "choose sides station", which has led to an increase in internal tensions within the region. Although Sino- Japanese confrontation has weakened bilateral relations, there is the possibility of cooperation in promoting connectivity in Southeast Asia, and the two sides share common interests in this regard. Competition between China and Japan in high-speed rail and other projects provides more choices for Southeast Asian countries, which complicates the development of infrastructure and affecting regional stability.

Characteristics of patients who seek medical attention for headache and those who do not: cross-sectional survey and linked medical claims data analysis in Japan

ObjectiveTo describe the characteristics of patients who sought medical attention for headache and those who did not.DesignThis observational study used a cross-sectional online survey and linked medical claims data.SettingData from...