Publications by authors named "Muraki S"
Objectives: This study aimed to investigate the prevalence of radiographic hand osteoarthritis (HOA) in older Japanese individuals in three distinct regions with unique geographic and occupational characteristics and explore the regional variations and factors, including occupational workload, that affect HOA.
Methods: We analysed the radiographic images and data of 1642 participants aged ≥60 years (mean, 75.6 years).
Cycling is a beneficial physical activity for rehabilitating individuals with lower-limb amputations and serves as a feasible leisure sport. However, the optimal bicycle configuration for cycling with a unilateral transtibial prosthesis at leisure levels has not been investigated. For saddle height at professional cycling levels, existing literature suggests utilizing the same configuration as that used by intact cyclists, where the knee reaches 25-35° at maximum extension.
View Article and Find Full Text PDFAim: This study aims to investigate the impact of aging on brain volume among community residents in Japan, focusing on trends over time and specific brain structures.
Methods: We analyzed data from the fourth survey (2015-2016) of the Research on Osteoarthritis/Osteoporosis Against Disability project, encompassing 2146 community residents from Japan's mountainous and coastal regions. A total of 1755 participants (81.
We evaluated the role of Helicobacter pylori (H. pylori)-related chronic gastritis in the development of osteoporosis in a population-based study. A total of 1690 subjects in the cohort of the Research on Osteoarthritis/ osteoporosis Against Disability (ROAD) were investigated, and the association between gastritis and osteoporosis was evaluated by the presence of serologically assessed H.
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- This study evaluated the long-term outcomes of patients who underwent thoracic endovascular aortic repair (TEVAR) using the GORE TAG and conformable GORE TAG grafts in a real-world setting, focusing on 10-year survival rates and freedom from aorta-related deaths.
- Out of 331 patients treated from 2011 to 2021, 175 were analyzed, showing a mean follow-up of 46.5 months, with 30-day mortality at 2.86% and decreasing survival rates over 10 years: 42.4% overall survival and 95% freedom from aorta-related deaths at 9 years.
- Complications included a 13.1% rate
Objectives: To investigate the prevalence and incidence rates of sarcopenia in Japanese community-dwelling people according to the criteria of the Asian Working Group for Sarcopenia 2019 recommendations, using a large-scale population-based cohort over a 10-year follow-up period.
Design: Prospective cohort study.
Setting And Participants: This study was conducted using data from the Research on Osteoarthritis/Osteoporosis Against Disability (ROAD) study.
Article Synopsis
- This study investigates how lumbar spine disorders, specifically scoliosis, affect the occurrence of asymmetric hallux valgus (HV) among participants in a nationwide study in Japan.
- The researchers categorized HV severity using radiographic angles and identified asymmetric HV as a difference of two or more severity grades between the left and right foot.
- Results showed that, out of 1997 participants, those with asymmetric HV had a higher incidence of lumbar issues, with scoliosis being a significant independent factor that increased the likelihood of asymmetric HV.
Background: This scoping review summarizes the tasks and outcomes in dynamic and functional balance assessments of individuals with chronic ankle instability, focusing on the physiological and biomechanical characteristics.
Method: A comprehensive literature search was conducted in PubMed, Scopus, Web of Science, and MEDLINE databases in September 2023 and revised in April 2024. Studies evaluating dynamic and functional balance in chronic ankle instability using clinical tests, as well as biomechanical and physiological outcomes, were included.
Article Synopsis
- The study aimed to identify factors linked to locomotive syndrome (LS) using medical questionnaires and machine learning techniques.
- A total of 1,575 participants underwent LS risk tests, and after data cleaning, 331 questionnaire items were analyzed to determine their association with LS through advanced statistical methods.
- Nine key factors, especially age and back pain during walking, were identified as strongly correlated with LS, showing better predictive performance compared to existing assessment tools.
Calcified amorphous tumor (CAT), a non-neoplastic tumor, is rare. Histopathologic features are the presence of calcified nodules in an amorphous background of fibrin. CAT is reported to be associated with renal dysfunction or hemodialysis, and possibly causes cerebral embolism.
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- The study aimed to analyze the changes over ten years in the medial minimum joint space width (mJSW) and osteophyte area (OPA) of knee joints among Japanese adults using data from two independent cohorts.
- Data was collected from nearly 3,000 participants in initial surveys between 2005-2007, followed by another survey with about 2,400 participants from 2015-2016, focusing on measuring mJSW and OPA using automated systems.
- Results showed a significant increase in mJSW for both men and women over the ten years, suggesting a potential decrease in knee osteoarthritis incidence and progression, while OPA trends were less consistent.
Power assistance on joint torque may not be beneficial to all the related muscles. We investigated the effects of power assistance on torque release during isokinetic elbow flexion. An isokinetic dynamometer system was used to simulate dynamic elbow flexion with power assistance, which altered the exercise conditions of baseline isometric torque (greater and lower) and rotation speed (faster and slower) of the lever arm.
View Article and Find Full Text PDFFemoroacetabular impingement has increasingly been recognized as a cause of primary hip osteoarthritis; however, its epidemiological indications remain unclear. We aimed to clarify the epidemiological indications and factors associated with cam deformity in a large-scale population-based cohort in Japan. Overall, 1480 participants (2960 hips) (491 men, 989 women; mean age, 65.
View Article and Find Full Text PDFAim: No studies have examined the association between plasma pentosidine levels and ossification diseases in large cohorts of Japanese residents. This study aimed to investigate the association between cervical ossification of the posterior longitudinal ligament (OPLL) and other ossification diseases, including diffuse idiopathic skeletal hyperostosis, lumbar spondylosis and knee osteoarthritis (OA), by examining plain radiographs of the knee, and cervical, thoracic and lumbar spine from 1690 participants, and the association between these diseases and plasma pentosidine.
Design: We enrolled 1690 participants (596 men and 1094 women) from mountainous and coastal areas from the study population of the previous Research on Osteoarthritis/Osteoporosis Against Disability study.
Article Synopsis
- The study examined the potential causal relationship between the medial partite hallux sesamoid (MPHS) and hallux valgus (HV) using data from a diverse group of participants aged 21-95 years.
- Out of 3,994 feet analyzed, 12.7% had MPHS, with notable differences in prevalence between men and women, and a significant decrease in MPHS occurrence with age.
- The findings suggest that while MPHS is associated with an increased HV angle, the relationship is stronger in younger populations, indicating that MPHS may contribute to the development of HV rather than being caused by it, particularly in younger adults.
Article Synopsis
- A study in Japan investigated the prevalence of atrophic gastritis (AG) and infection from 2005 to 2016 using data from 3,596 participants, showing a significant decline in both conditions over the decade.
- At baseline, AG prevalence was 40.1% and infection was 52.2%, while 10 years later, AG rates dropped to 25.8% and infection rates to 35.5%.
- The research indicated that AG prevalence increased with age, while infection prevalence showed an inverted U-shaped trend, suggesting that the changes may impact related health issues like colorectal neoplasia and arteriosclerosis.
We report a rare case of positive findings in pleural lavage cytology(PLC) in the patient with pulmonary adenocarcinoma in situ (AIS). A 78-year-old woman was presented with a 30 mm pure groundglass nodule (GGN) in the left upper lobe on chest computed tomography (CT). After 2 years follow- up, thoracoscopic surgery was performed to resect the nodule.
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- Researchers studied genetic factors linked to lumbar spondylosis by comparing 83 severe cases with 182 healthy controls, discovering 65 candidate single nucleotide polymorphisms (SNPs).
- A significant SNP, rs2054564, found in the ADAMTS17 gene, was confirmed in larger Japanese and Korean cohorts, indicating its potential impact on disease risk.
- The study also highlighted the role of ADAMTS17 and fibrillin-1 (FBN1) in intervertebral discs, suggesting that disruptions in their interaction may contribute to lumbar spondylosis, with evidence from patients with Marfan syndrome further supporting this link.
Background: The saphenous vein (SV) is used as an essential conduit in coronary artery bypass grafting (CABG), but the long-term patency of SV grafts is a crucial issue. The use of the novel "no-touch" technique of harvesting the SV together with its surrounding tissue has been reported to result in good long-term graft patency of SV grafts. We recently showed that perivascular adipose tissue (PVAT) surrounding the SV (SV-PVAT) had lower levels of metaflammation and consecutive adipose tissue remodeling than did PVAT surrounding the coronary artery.
View Article and Find Full Text PDFCoronary artery aneurysm is a rare entity defined as expansion more than 1.5 times of normal coronary artery in diameter. A 77-year-old male was admitted to our hospital with a diagnosis of acute coronary syndrome and a giant right coronary artery aneurysm.
View Article and Find Full Text PDFBackground: Perampanel (PER) is an oral antiepileptic drug and its concomitant use with carbamazepine (CBZ) leads to decreased PER concentrations. However, the magnitude of its influence may vary, depending on the dynamics of the enzyme induction properties of CBZ. This study aimed to develop a population pharmacokinetic (PPK) model considering the dynamics of enzyme induction and evaluate the effect of CBZ on PER pharmacokinetics.
View Article and Find Full Text PDFBackward Walking Styles and Impact on Spatiotemporal Gait Characteristics.
Healthcare (Basel)
December 2022
Forward walking (FW) is a common balance assessment tool. However, its sensitivity is limited by the ceiling effect. Reverse gait, such as backward walking (BW), has been reported to have more advantages than FW for balance assessment.
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- - The study examined hip osteoarthritis (OA) trends in Japanese men and women over a decade using data from a major disability research study, comparing baseline data from 2005-2007 with follow-up data from 2015-2016.
- - Analyzed participants included 2924 individuals at baseline and 2347 in the follow-up, focusing on those aged 40-89, and results showed varied prevalence of hip OA, particularly comparing younger adults to older ones.
- - Findings indicated a general decrease in the prevalence of radiographic hip OA over the 10-year period, suggesting an overall improvement in hip health in the population studied.
Aim: A population pharmacokinetic (PPK) study of the correlation of adverse drug reactions (ADRs) with the 3HP regimen (weekly high-dose rifapentine plus isoniazid for 12 doses) for latent tuberculosis infection (LTBI) remains lacking. The purpose of this study is to determine the association of rifapentine or isoniazid concentration and ADRs.
Methods: This prospective, multicentre, observational study enrolled LTBI contacts receiving 3HP treatment between January 2017 and August 2020.
Introduction: This study aimed to clarify the trends in the prevalence of osteoporosis among general inhabitants using population-based cohort data of the baseline and the survey 10 years later.
Materials And Methods: The baseline survey of the Research on Osteoarthritis/Osteoporosis Against Disability (ROAD) study was conducted in 2005-2007; 1690 participants (596 men, 1094 women, mean age 65.2 years) completed all examinations of osteoporosis, including a questionnaire of medical information in the present/past and bone mineral density measurement using dual-energy absorptiometry.