170 results on '"Ikeda K"'
Search Results
2. POS0427 SEASONAL VARIATIONS OF TYPE I INTERFERON ACTIVITY IN PATIENTS WITH SYSTEMIC LUPUS ERYTHEMATOSUS
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Miyachi, K., primary, Iwamoto, T., additional, Kojima, S., additional, Ida, T., additional, Yasui, M., additional, Nakagomi, D., additional, Matsuki, A., additional, Kagami, S. I., additional, Kobayashi, Y., additional, Tamachi, T., additional, Fujiwara, M., additional, Kawashima, H., additional, Oya, Y., additional, Sanayama, Y., additional, Furuta, S., additional, Ikeda, K., additional, and Nakajima, H., additional
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- 2024
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3. POS0875 DEFINING THE THRESHOLD OF NORMALITY IN MUSCULOSKELETAL ULTRASOUND; AN OMERACT ULTRASOUND STUDY
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Sahbudin, I., primary, Trickey, J., additional, Gouze, H., additional, Stoenoiu, M. S., additional, Filippou, G., additional, Sakellariou, G., additional, Maruseac, M., additional, Wittoek, R., additional, Carron, P., additional, Tinazzi, I., additional, Iagnocco, A., additional, Serban, T., additional, Azzolin, I., additional, Terslev, L., additional, Ammitzbøll-Danielsen, M., additional, Nyhuus Bendix Rasch, M., additional, Hauge, E. M., additional, Hammer, H. B., additional, Milchert, M., additional, Fliciński, J., additional, Mandl, P., additional, Borst, C., additional, Fodor, D., additional, Vreju, F. A., additional, Karalilova, R., additional, Naredo, E., additional, Sifuentes-Cantú, C., additional, La Paglia, G. M. C., additional, Pineda, C., additional, Gutierrez, M., additional, Leon, G., additional, Reátegui-Sokolova, C., additional, Mortada, M. A., additional, Suzuki, T., additional, Ikeda, K., additional, Ciurtin, C., additional, Kortekaas, M., additional, Ohrndorf, S., additional, Keen, H., additional, Bruyn, G., additional, Filer, A., additional, and D’agostino, M. A., additional
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- 2024
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4. POS0408 CONTROLLING DISEASE ACTIVITY WITH BIOLOGICAL DMARDS PREVENTS DEVELOPMENT/PROGRESSION OF INTERSTITIAL LUNG DISEASE IN RHEUMATOID ARTHRITIS
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Tanaka, A., primary, Kurasawa, K., additional, Kikuchi, A., additional, Komatsu, S., additional, Aizawa, Y., additional, Shimizu, A., additional, Yoshida, Y., additional, Hasegawa, A., additional, Hiyama, T., additional, Miyao, T., additional, Arai, S., additional, Owada, T., additional, Maezawa, R., additional, Arima, M., additional, and Ikeda, K., additional
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- 2024
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5. POS0202 RELATIONSHIP BETWEEN SERUM INTERFERON-Α LEVELS AND CLINICAL PARAMETERS, TREATMENT RESPONSES, AND OUTCOMES IN PATIENTS WITH ANTI-MELANOMA DIFFERENTIATION-ASSOCIATED GENE 5 ANTIBODY-POSITIVE DERMATOMYOSITIS
- Author
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Ida, T., primary, Iwamoto, T., additional, Kojima, S., additional, Takahashi, T., additional, Yasui, M., additional, Hasebe, K., additional, Furuta, S., additional, Ikeda, K., additional, Kurasawa, K., additional, Tamachi, T., additional, Hirose, K., additional, and Nakajima, H., additional
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- 2024
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6. AB0565 BASELINE CHARACTERISTICS AND TREATMENT RESPONSE IN PATIENTS WITH RHEUMATOID ARTHRITIS: DATA FROM RA-BE-REAL PROSPECTIVE OBSERVATIONAL STUDY
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Balsa, A., primary, Favalli, E. G., additional, Ikeda, K., additional, Van de Laar, M., additional, Schulze-Koops, H., additional, Haladyj, E., additional, Fakhouri, W., additional, Ogwu, S., additional, Laedermann, C., additional, and Finckh, A., additional
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- 2024
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7. AB1459 SCENARIO-BASED POINT OF CARE RHEUMATOLOGY ULTRASOUND (POCRUS): A REPORT FROM THE APLAR ONLINE COURSE (2022-2023)
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Lee, A., primary, Chew, L. C., additional, Abogamal, A., additional, Balint, P., additional, Harifi, G., additional, Ikeda, K., additional, Khurshid, M., additional, Kong, K. O., additional, Lai, K. L., additional, Lee, K. W. G., additional, Wakefield, R. J., additional, and Dasgupta, B., additional
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- 2024
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8. Bifurcation Mechanism at a Sustain Point of a Long Narrow Economy.
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Ikeda, K., Aizawa, H., and Gaspar, J. M.
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RELIEF models , *ECONOMIC geography , *ODD numbers , *CITIES & towns , *ECONOMIC models - Abstract
In this paper, we investigate population agglomeration in a long narrow economy, in which an odd number of places are evenly distributed over a line segment. The bifurcation analysis of this economy elucidates the mechanism of the emergence of twin cities around the central city. The validity and usefulness of this analysis are confirmed using several well-known economic geography models that display various kinds of bifurcation behaviors. By this analysis, we investigate the historical change in the population distribution in a chain of cities on Japan's Main Island. [ABSTRACT FROM AUTHOR]
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- 2024
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9. Spatial and time-resolved properties of emission enhancement in polar/semi-polar InGaN/GaN by surface plasmon resonance
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Ikeda Kento, Kawai Kanata, Kametani Jun, Matsuyama Tetsuya, Wada Kenji, Okada Narihito, Tadatomo Kazuyuki, and Okamoto Koichi
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surface plasmon resonance ,plasmonics ,ingan/gan ,semi-polar ,light-emitting diodes ,micro-photoluminescence ,Physics ,QC1-999 - Abstract
Light-emitting diodes (LEDs) are widely used as next-generation light sources because of their various advantages. However, their luminous efficiency is remarkably low at the green-emission wavelength. The luminous efficiencies of InGaN/GaN quantum wells (QWs) significantly decrease with increasing indium content in the green wavelength region, mainly owing to the quantum-confined Stark effect (QCSE). This green gap problem can be solved using QWs grown on semi-polar GaN substrates, such as the {11–22} planes, to reduce the QCSE. We propose that the use of surface plasmons (SPs) is a promising way to improve the light emission efficiency of light-emitting materials such as InGaN/GaN QWs. SP resonance increases the spontaneous emission rates of the excited states, causes a relative reduction in non-radiative relaxation, and ultimately increases the internal quantum efficiencies. In this study, the light emissions of InGaN/GaN QWs grown on polar and semi-polar GaN were investigated using micro-photoluminescence (PL). We successfully enhanced the light emission of semi-polar GaN via SP resonance. The PL peak intensities and wavelengths were mapped and compared to determine the underlying mechanisms. We also measured the emission lifetimes by time-resolved PL and interpreted the detailed mechanism of SP-enhanced emissions. It was found that SP resonances can control not only the emission efficiency but also the exciton dynamics, such as exciton localization effects, QCSE screening, and defect level saturation. We conclude that the green gap problem can be solved by SP-enhanced light emission in semipolar InGaN/GaN.
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- 2024
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10. ZCCHC3 and Efp coordinately contribute to the pathophysiology of triple-negative breast cancer by modulating NCAPH.
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Fujimoto A, Ikeda K, Takeiwa T, Osaki A, Horie K, and Inoue S
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- Humans, Female, Animals, Cell Line, Tumor, Mice, Mice, Nude, Mice, Inbred BALB C, Triple Negative Breast Neoplasms pathology, Triple Negative Breast Neoplasms genetics, Triple Negative Breast Neoplasms metabolism, Cell Proliferation, Gene Expression Regulation, Neoplastic
- Abstract
Triple-negative breast cancer (TNBC) is an aggressive breast cancer subtype with limited targeted therapies and high rates of recurrence. We previously showed that Efp promotes TNBC cell proliferation by regulating cell cycle-related gene expression. Recent studies showed that ZCCHC3 interacts with Efp, promoting Efp signaling in innate immune responses. We here characterize whether ZCCHC3 plays a pathophysiological role in TNBC tumorigenesis. We showed that ZCCHC3 silencing significantly repressed the proliferation of TNBC conventional cultured cells and three-dimensional patient-derived spheroid culture, which we established from a clinical TNBC tissue. RNA-sequencing in TNBC cells defined that "cell division" was a major pathway commonly downregulated by ZCCHC3 and Efp silencing, and NCAPH was a cell division-related gene highly downregulated by ZCCHC3 silencing. In a TNBC cell-derived xenograft model, ZCCHC3-specific siRNA injection successfully reduced in vivo TNBC tumor growth and downregulated NCAPH expression. Overall, our findings demonstrate that ZCCHC3 and Efp coordinately promote TNBC progression by regulating NCAPH expression and that ZCCHC3/Efp/NCAPH pathway can be applied to clinical TNBC management., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier Inc. All rights reserved.)
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- 2024
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11. Rate-Controlled Washing of Surface-Modified Nanoparticles Using Rationally Designed Supercritical CO 2 Media.
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Orita Y, Ikeda K, Muronosono A, Wijakmatee T, Kataoka T, and Shimoyama Y
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In practical applications of surface-modified nanoparticles (NPs), the washing stage has a number of challenges, such as insufficient washing, long treatment time, and various waste liquors. Cosolvent-enhanced supercritical CO
2 (scCO2 ) is an appealing solvent system for complete, rapid, and eco-friendly washing owing to its high diffusivity and recyclability. In this paper, we report a rapid washing guideline for surface-modified NPs using ethanol-enhanced scCO2 . Kinetic analysis was performed on the washing behavior of oleic acid-modified NPs mixed with various modifiers (C10 to C18 fatty acids) at 40 °C and 20.0 MPa while designing scCO2 media based on rationally estimated modifier solubilities. Notably, the scCO2 medium showed superior washing rates to that of ethanol for various modifiers with a wide range of solubilities in scCO2 . The washing rate was dependent on solubility and could be organized into two regions, with a threshold value of 0.016 mol kg-1 : solubility/diffusivity-controlled and diffusivity-controlled washing. These findings provide valuable guidelines for designing cosolvent-enhanced scCO2 media for the rapid washing of surface-modified NPs.- Published
- 2024
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12. Determination of Genotype and Phenotypes in Pediatric Patients With Biventricular Noncompaction.
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Hirono K, Hata Y, Imamura T, Tsuboi K, Takarada S, Okabe M, Nakaoka H, Ibuki K, Ozawa S, Ichimata S, Nishida N, Iwasaki H, Urata S, Okada S, Hiratsuji T, Sakaguchi H, Takigiku K, Nakazawa M, Nishihara E, Harada M, Matsuo O, Yasuda K, Yoshida Y, Namiki H, Yasuda K, Ifuku T, Urayama K, Oka H, Ogino K, Kato A, Kan N, Seki S, Seki M, Odanaka Y, Iwashima S, Yoshida S, Miyata T, Miyamoto T, Watanabe K, Kuwabara N, Inuzuka R, Takahashi Y, Sakazaki H, Muneuchi J, Kogaki S, Numano F, Kido S, Nii M, Hoshino S, Ishida H, Maeda J, Hayabuchi Y, Otsubo Y, Ikeda K, Tsukano S, Watanabe M, Momoi N, Fujii T, Fujioka T, Fujino M, Uchiyama H, Baba S, Horigome H, Honda T, Suzuki K, and Ichida F
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- Humans, Male, Female, Infant, Child, Preschool, Child, Infant, Newborn, Heart Defects, Congenital genetics, Heart Defects, Congenital mortality, Heart Defects, Congenital diagnosis, Japan epidemiology, Genotype, Genetic Predisposition to Disease, Isolated Noncompaction of the Ventricular Myocardium genetics, Isolated Noncompaction of the Ventricular Myocardium physiopathology, Isolated Noncompaction of the Ventricular Myocardium diagnosis, Isolated Noncompaction of the Ventricular Myocardium mortality, Cardiomyopathies genetics, Cardiomyopathies physiopathology, Retrospective Studies, Phenotype
- Abstract
Background: Left ventricular noncompaction (LVNC) is a hereditary type of cardiomyopathy characterized by prominent trabeculations. Detailed characteristics of biventricular noncompaction (BiVNC) remain unknown. This study aimed to elucidate the clinical characteristics and genetic landscape of BiVNC., Methods and Results: We recruited children with left ventricular noncompaction from Japanese multi-institutional centers from 2013 to 2021. Left ventricular noncompaction was classified as BiVNC, congenital heart disease, arrhythmia, dilated cardiomyopathy, or normal function. In these patients, cardiomyopathy-associated genes were screened. A total of 234 patients (127 male; mean age, 4 months [range, 0-6.6 years]) were enrolled in this study, of whom 25 had BiVNC; 55, normal function; 84, dilated cardiomyopathy; 38, congenital heart disease; and 32, arrhythmia. BiVNC was diagnosed during the perinatal period in 10 patients, in whom the prevalence was higher than that in other patients. A total of 14 patients in the group with BiVNC had congenital heart disease, but not necessarily right heart lesions. Left ventricular dyskinesis was frequently observed in the lateral wall (24%) and apex (28%). Eleven pathogenic variants were found in 11 patients with BiVNC (44.0%). The group with BiVNC had a higher ratio of mitochondrial and developmental gene variants than the other groups. Among all groups, the group with BiVNC had the worst survival rate ( P =0.0009)., Conclusions: Pediatric patients with BiVNC had a high rate of ventricular dyskinesis and poor outcome. A comprehensive and careful screening for disease-causing genes and phenotype may help identify specific patients with left ventricular noncompaction and mortality-related cardiac phenotypes.
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- 2024
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13. Author Correction: Fatty acid metabolism constrains Th9 cell differentiation and antitumor immunity via the modulation of retinoic acid receptor signaling.
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Nakajima T, Kanno T, Ueda Y, Miyako K, Endo T, Yoshida S, Yokoyama S, Asou HK, Yamada K, Ikeda K, Togashi Y, and Endo Y
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- 2024
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14. The role of advanced physiological guidance in contemporary coronary artery disease management.
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Munhoz D, Ikeda K, Bouisset F, Sakai K, Tajima A, Mizukami T, Sonck J, Johnson NP, and Collet C
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- Humans, Clinical Decision-Making, Disease Management, Coronary Artery Disease therapy, Coronary Artery Disease physiopathology, Percutaneous Coronary Intervention methods, Fractional Flow Reserve, Myocardial physiology
- Abstract
Purpose of Review: This review evaluates the emerging role of the pullback pressure gradient (PPG) as a standardized metric for assessing coronary artery disease (CAD) patterns and its implications for clinical decision-making when managing patients undergoing percutaneous coronary interventions (PCIs). By integrating PPG with existing physiological assessments, this review highlights the potential benefits of PPG in predicting treatment outcomes and refining therapeutic strategies for CAD., Recent Findings: Recent studies, particularly the PPG Global study have demonstrated a strong correlation between PPG values and post-PCI outcomes, revealing that focal disease is associated with improved fractional flow reserve (FFR) and lower rates of adverse events than vessels with diffuse disease (low PPG). Additionally, PPG has been linked to specific atherosclerotic plaque characteristics, indicating its utility in identifying high-risk plaques. The integration of PPG with advanced imaging techniques further enhances the understanding of CAD patterns and their implications for treatment planning., Summary: The PPG represents a significant advancement in the management of CAD, providing a reproducible and objective assessment of coronary artery disease patterns that can inform clinical decision-making. As research continues to explore the relationship among PPG, atherosclerotic characteristics, and patient outcomes, its integration into routine practice is expected to improve the effectiveness of PCI and optimize patient management strategies. Future studies are warranted to establish specific PPG thresholds and further investigate its potential in identifying vulnerable plaques and guiding treatment decisions., (Copyright © 2024 The Author(s). Published by Wolters Kluwer Health, Inc.)
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- 2024
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15. Validation of virtual fractional flow reserve pullback curves.
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Seki R, Collison D, Ikeda K, Sonck J, Munhoz D, Bertolone DT, Ko B, Maeng M, Otake H, Koo BK, Storozhenko T, Bouisset F, Belmonte M, Leone A, Shumkova M, Ford TJ, Mahendiran T, Berry C, De Bruyne B, Oldroyd K, Sakai K, Mizukami T, and Collet C
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- Humans, Female, Male, Middle Aged, Aged, Reproducibility of Results, Treatment Outcome, Coronary Vessels physiopathology, Coronary Vessels diagnostic imaging, Time Factors, Prospective Studies, Angina Pectoris physiopathology, Angina Pectoris therapy, Angina Pectoris diagnostic imaging, Angina Pectoris etiology, Severity of Illness Index, Surveys and Questionnaires, Fractional Flow Reserve, Myocardial, Coronary Artery Disease physiopathology, Coronary Artery Disease diagnostic imaging, Coronary Artery Disease therapy, Predictive Value of Tests, Coronary Angiography, Percutaneous Coronary Intervention adverse effects, Cardiac Catheterization
- Abstract
Background: Angiography-derived fractional flow reserve (virtual FFR) has shown excellent diagnostic performance compared with wire-based FFR. However, virtual FFR pullback curves have not been validated yet., Objectives: To validate the accuracy of virtual FFR pullback curves compared to wire-based FFR pullbacks and to assess their clinical utility using patient-reported outcomes., Methods: Pooled analysis of two prospective studies, including patients with hemodynamically significant (FFR ≤ 0.80) coronary artery disease (CAD). Virtual and wire-based FFR pullbacks were compared to assess the accuracy of virtual pullbacks to characterize CAD as focal or diffuse. Pullbacks were analyzed visually and quantitatively using the pullback pressure gradient (PPG). Patients underwent PCI, and the Seattle Angina Questionnaire (SAQ) was administered at 3-month follow-up., Results: A total of 298 patients (300 vessels) with both virtual and wire-based pullbacks who underwent PCI were included in the analysis. The mean age was 61.8 ± 8.8, and 15% were female. The agreement on the visual adjudication of the CAD pattern was fair (Cohen's Kappa: 0.31, 95% confidence interval: 0.18-0.45). The mean PPG were 0.65 ± 0.18 from virtual pullbacks and 0.65 ± 0.13 from wire-based pullbacks (r = 0.68, mean difference 0, limits of agreement -0.27 to 0.28). At follow-up, patients with high virtual PPG (>0.67) had higher SAQ angina frequency scores (i.e., less angina) than those with low virtual PPG (SAQ scores 92.0 ± 14.3 vs. 85.5 ± 23.1, p = 0.022)., Conclusion: Virtual FFR pullback curves showed moderate agreement with wire-based FFR pullbacks. Nonetheless, patients with focal disease based on virtual PPG reported greater improvement in angina after PCI., (© 2024 Wiley Periodicals LLC.)
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- 2024
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16. COVID-19 complicated with severe M1 UK -lineage Streptococcus pyogenes infection in elderly patients: A report of two cases.
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Kawaguchi A, Nagaoka K, Kawasuji H, Kawagishi T, Fuchigami T, Ikeda K, Kanatani JI, Doi T, Oishi K, and Yamamoto Y
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- Humans, Male, Aged, Aged, 80 and over, Tomography, X-Ray Computed, Coinfection microbiology, Pericarditis microbiology, Pericarditis diagnosis, Pericarditis virology, Anti-Bacterial Agents therapeutic use, COVID-19 complications, COVID-19 diagnosis, Streptococcus pyogenes isolation & purification, Streptococcal Infections diagnosis, Streptococcal Infections microbiology, SARS-CoV-2
- Abstract
Case 1: A 71-year-old man was admitted to our hospital with progressive fever and dyspnea, which had developed three days after the onset of COVID-19. Initial chest computed tomography (CT) revealed a pulmonary lesion consistent with a secondary bacterial infection. Streptococcus pyogenes was isolated from cultures of primary sputum collected from the endotracheal tube, and identified as the causative microorganism. Case 2: A 91-year-old man was transferred to our hospital with severe hypotension, which had developed nine days after the onset of COVID-19. A chest CT revealed pericardial effusion and pericardiocentesis yielded purulent fluid. S. pyogenes was isolated from the fluid specimens and was identified as the causative microorganism of the secondary bacterial pericarditis. Isolates from both patients were subsequently identified as M1
UK -lineage S. pyogenes via genetic analysis. This report implicates COVID-19 as a potential risk factor for severe M1UK infection via the respiratory tract., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Author(s). Published by Elsevier Ltd.. All rights reserved.)- Published
- 2024
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17. Genitourinary and craniofacial/cervicothoracic anomalies in a neonate with in-utero mycophenolate mofetil exposure.
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Omori-Shimano S, Ikeda K, Miyauchi J, and Fukami M
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- 2024
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18. Impact of home visiting nurses on home death proportion in Japan: A nationwide longitudinal ecological study.
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Yoshida S, Hirahara Y, Mutai R, Miyamori D, Kikuchi Y, Ikeda K, Shigenobu Y, and Ito M
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- Humans, Japan, Longitudinal Studies, Nurses, Community Health statistics & numerical data, Terminal Care, Female, House Calls statistics & numerical data, Community Health Nursing, Male, Home Care Services statistics & numerical data
- Abstract
Objective: Home visiting nurses contribute to end-of-life home care in an aging society. However, few previous studies reported patient outcomes based on nursing practices. This study aimed to examine the correlation between the number of them and the change in home death proportion., Methods: We divided the number of home visiting nurses into four categories: absent, shortage, medium, and abundant. This study adopted the interaction term between the nurse categories and year as the major exposure variable, and home death proportion per municipality as the objective variable. We estimated the average marginal effects (AME) as the change in home death proportion from 2015 to 2020., Results: The total number of home visiting nurses was 36,483 in 2015 and 65,868 in 2020. The coefficients of the interaction term were statistically significant in medium and abundant municipalities (Medium: 1.26 (95% CI: 0.49-2.04), Abundant: 2.15 (95% CI: 0.76-3.55)). Increased home death proportion were estimated as AME: 1.56% (95% CI: 0.99-2.13), 1.35% (95% CI: 0.85-1.84), 2.82% (95% CI: 2.30-3.35), and 3.71% (95% CI: 2.44-4.99) in the absent, shortage, medium, and abundant areas, respectively., Conclusions: To increase the proportion of home deaths, municipalities require a certain number of home visiting nurses., (© 2024 The Author(s). Public Health Nursing published by Wiley Periodicals LLC.)
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- 2024
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19. Impact of Reduced Acidic Earwax pH and Earwax-Determinant Genotypes in Acquired Middle Ear Cholesteatoma.
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Hara S, Kusunoki T, Nakagawa H, Kamiya K, Toyoda Y, Takata Y, Anzai T, Furukawa M, Okada H, Nakayama T, Ikeda K, and Matsumoto F
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- Humans, Female, Male, Prospective Studies, Hydrogen-Ion Concentration, Middle Aged, Adult, Case-Control Studies, Cholesteatoma, Middle Ear genetics, Genotype, Cerumen, Polymorphism, Single Nucleotide, ATP-Binding Cassette Transporters genetics
- Abstract
Objective: The development of acquired middle ear cholesteatoma is associated with a single nucleotide polymorphism, 538G>A, in the human adenosine triphosphate-binding cassette transporter C11 (ABCC11) gene, which is a determinant of the earwax morphotype, such as wet- and dry-type earwax; however, the mechanism underlying this association is unclear. We focused on the earwax pH and aimed to elucidate the mechanism between ABCC11 genotypes and acquired middle ear cholesteatoma., Study Design: Prospective observational study., Setting: Single-center, academic hospital., Methods: We recruited 40 patients with acquired middle ear cholesteatoma who underwent surgery and 115 controls with no history of middle ear cholesteatoma. We assessed the earwax pH and ABCC11 genotypes in all participants. Clinical information was collected from the patients with cholesteatoma., Results: The earwax pH was significantly less acidic in patients with cholesteatoma and those carrying wet earwax genotypes (ABCC11 538G/G or 538G/A) than in the controls and those carrying the dry earwax genotype (ABCC11 538A/A), respectively. Furthermore, earwax pH was significantly positively correlated with high preoperative cholesteatoma stages in the patients with cholesteatoma., Conclusion: Our results show that the less acidic earwax pH was significantly related to the development and progression of acquired middle ear cholesteatoma. The less acidic earwax pH may play an important role in the mechanism underlying the association between acquired middle ear cholesteatoma and the ABCC11 gene at site 538., (© 2024 American Academy of Otolaryngology–Head and Neck Surgery Foundation.)
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- 2024
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20. Fatty acid metabolism constrains Th9 cell differentiation and antitumor immunity via the modulation of retinoic acid receptor signaling.
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Nakajima T, Kanno T, Ueda Y, Miyako K, Endo T, Yoshida S, Yokoyama S, Asou HK, Yamada K, Ikeda K, Togashi Y, and Endo Y
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- Animals, Humans, Mice, Acetyl-CoA Carboxylase metabolism, T-Lymphocytes, Helper-Inducer immunology, Transforming Growth Factor beta metabolism, Lipid Metabolism, Cell Differentiation, Interleukin-9 metabolism, Signal Transduction, Fatty Acids metabolism, Receptors, Retinoic Acid metabolism, Mice, Inbred C57BL
- Abstract
T helper 9 (Th9) cells are interleukin 9 (IL-9)-producing cells that have diverse functions ranging from antitumor immune responses to allergic inflammation. Th9 cells differentiate from naïve CD4
+ T cells in the presence of IL-4 and transforming growth factor-beta (TGF-β); however, our understanding of the molecular basis of their differentiation remains incomplete. Previously, we reported that the differentiation of another subset of TGF-β-driven T helper cells, Th17 cells, is highly dependent on de novo lipid biosynthesis. On the basis of these findings, we hypothesized that lipid metabolism may also be important for Th9 cell differentiation. We therefore investigated the differentiation and function of mouse and human Th9 cells in vitro under conditions of pharmacologically or genetically induced deficiency of the intracellular fatty acid content and in vivo in mice genetically deficient in acetyl-CoA carboxylase 1 (ACC1), an important enzyme for fatty acid biosynthesis. Both the inhibition of de novo fatty acid biosynthesis and the deprivation of environmental lipids augmented differentiation and IL-9 production in mouse and human Th9 cells. Mechanistic studies revealed that the increase in Th9 cell differentiation was mediated by the retinoic acid receptor and the TGF-β-SMAD signaling pathways. Upon adoptive transfer, ACC1-inhibited Th9 cells suppressed tumor growth in murine models of melanoma and adenocarcinoma. Together, our findings highlight a novel role of fatty acid metabolism in controlling the differentiation and in vivo functions of Th9 cells., (© 2024. The Author(s).)- Published
- 2024
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21. Integrating point-of-care ultrasound into rheumatology practice.
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Ciechomska AD, Chaturvedi V, Thabah M, Ikeda K, Wakefield RJ, and Dasgupta B
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- Humans, Rheumatic Diseases diagnostic imaging, Osteoarthritis diagnostic imaging, Osteoarthritis therapy, Arthritis, Rheumatoid diagnostic imaging, Gout diagnostic imaging, Ultrasonography, Point-of-Care Systems, Rheumatology
- Abstract
A scenario‑based probability approach integrating point‑of‑care rheumatology ultrasound (POCRUS) into rheumatology practice has recently been proposed as a teaching methodology to encourage greater awareness of US among practicing clinicians, especially with respect to the management of overlapping clinical conditions. This article reviews the rheumatological areas where application of POCRUS substantially enhances clinical reasoning to confirm or exclude target conditions. It highlights the definitions of US‑detected pathologies in rheumatoid arthritis, spondylarthritis, gout and crystal arthritis, osteoarthritis, and polymyalgia rheumatica, and discusses the added value of POCRUS in diagnosing these conditions. Additionally, it summarizes advances in predicting giant cell arteritis with sequential application of a probability score and US, and discusses the potential role of salivary gland US in the diagnostic workup of suspected Sjögren syndrome. Other areas for POCRUS application, such as in suspected nerve entrapment, are also reviewed.
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- 2024
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22. A New Performance-Based Test for Assessing Chloride-Induced Reinforcement Corrosion Resistance of Geopolymer Mortars.
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Ichimiya K, Yamamoto R, Ikeda K, Nguyen QD, and Castel A
- Abstract
The widespread adoption of geopolymer concretes in the industry has been slow, mainly due to concerns over their long-term performance and durability. One of the main causes of concrete structures' deterioration is chloride-induced corrosion of the reinforcement. The reinforcement corrosion process in concrete is composed of two main stages: the initiation phase, which is the amount of time required for chloride ions to reach the reinforcement, and the propagation phase, which is the active phase of corrosion. The inherent complexities associated with the properties of precursors and type of activators, and with the multi-physics processes, in which different transfer mechanisms (moisture, chloride, oxygen, and charge transfer) are involved and interact with each other, have been a major obstacle to predicting the durability of reinforced alkali-activated concretes in chloride environments. Alternatively, the durability of alkali-activated concretes can be assessed through testing. However, the performance-based tests that are currently available, such as the rapid chloride permeability test, the migration test or the bulk diffusion test, are only focusing on the initiation phase of the corrosion process. As a result, existing testing protocols do not capture every aspect of the material performance, which could potentially lead to misleading conclusions, particularly when involving an electrical potential to reduce the testing time. In this paper, a new performance-based test is proposed for assessing the performance of alkali-activated concretes in chloride environments, accounting for both the initiation and propagation phases of the corrosion process. The test is designed to be simple and to be completed within a reasonable time without involving any electrical potential.
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- 2024
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23. Effects of the Coronavirus disease 2019 pandemic on mortality in patients with lung cancer: A multiple mediation analysis in Japan.
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Miyamori D, Kamitani T, Yoshida S, Kikuchi Y, Shigenobu Y, Ikeda K, Yamamoto Y, and Ito M
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- Humans, Male, Female, Japan epidemiology, Aged, Middle Aged, Mediation Analysis, SARS-CoV-2 isolation & purification, Aged, 80 and over, Early Detection of Cancer statistics & numerical data, Pandemics, Proportional Hazards Models, COVID-19 mortality, COVID-19 epidemiology, Lung Neoplasms mortality, Lung Neoplasms epidemiology
- Abstract
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., (© 2024 The Author(s). International Journal of Cancer published by John Wiley & Sons Ltd on behalf of UICC.)
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- 2024
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24. Treatment with a self-expanding endoprosthesis in patients with stenosis or occlusion at the arteriovenous graft: 6-Month outcomes of a post-marketing surveillance study.
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Haruguchi H, Fukasawa M, Ikeda K, Suemitsu K, Sato T, Miyamoto M, Murakami M, Nakamura J, Noguchi T, Eguchi D, Kamimura T, and Aikawa K
- Abstract
Purpose: To assess 6-month safety and efficacy of a self-expanding stent graft placement to treat stenotic or thrombosed synthetic arteriovenous access graft at the venous anastomoses., Material and Methods: This prospective, multicenter, post-market surveillance study assessed the GORE
® VIABAHN® Endoprosthesis (stent graft) in Japanese patients with stenotic or thrombosed vascular access grafts. Key efficacy and safety outcomes were primary patency (PP) and secondary patency (SP) of the target lesion and the vascular access circuit, repeat interventions, technical and clinical success, incidence of adverse and serious adverse events, and device deficiencies through 6 months., Results: The 103 enrolled patients (mean age 71.8 years; 57.3% female) had stent grafts placed in the venous anastomosis of arteriovenous access grafts (on-label). The majority of lesions were stenotic (77.1%) and located in the upper arm (91.4%). Mean lesion length was 42.9 ± 23.6 mm and diameter was 6.7 ± 1.9 mm; 28 patients (27.2%) had elephant trunk placements. Technical and clinical success rates were 100%. At 6 months, Kaplan-Meier estimates of target lesion and circuit PP were 75.1% (95% CI: 65.2, 82.6) and 66.8% (95% CI: 56.4, 75.3), and SP rates were 93.8% (95% CI: 86.7, 97.2) and 93.8% (95% CI: 86.7, 97.2), respectively. Mean cumulative number of reinterventions (0.36; 95% CI: 0.20, 0.51) and incidence of device- or procedure-related adverse events were low (⩽3%). No device deficiencies were reported., Conclusions: The 6-month outcomes of the self-expanding stent graft to treat thrombosed venous anastomoses of synthetic hemodialysis vascular access grafts with stenosis demonstrated safety and effectiveness., Competing Interests: Declaration of conflicting interestsThe author(s) declared the following potential conflicts of interest with respect to the research, authorship, and/or publication of this article: H. Haruguchi, M. Fukasawa, K. Ikeda, K. Suemitsu, T. Sato, J. Nakamura, T. Noguchi, D. Eguchi, T. Kamimura, and K. Aikawa have no industry relationships to disclose. M. Miyamoto declares: Honorarium from W. L. Gore & Associates, G.K., Medtronic Japan, Boston Scientific Japan, KANAKA Medical Products, Medicon Inc., and Filips Japan. M. Murakami declares: Honoraria for presentations from Boston Scientific, Kaneka Medix, W. L. Gore & Associates, and Medtronic.- Published
- 2024
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25. Cellular mechanisms of synchronized rhythmic burst generation in the ventromedial hypothalamus.
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Iigaya K, Onimaru H, Ikeda K, Iizuka M, and Izumizaki M
- Abstract
The ventromedial hypothalamus (VMH) plays an important role in feeding behavior and control of the sympathetic nervous system (SNS). The VMH includes a group of neurons that exhibit strong synchronized rhythmic burst firing (so-called VMH oscillation). This VMH oscillation is glucose inhibited, responsive to feeding-related peptides, and is functionally coupled to outputs of the SNS. However, the details of its rhythm generation and synchronization mechanisms are unknown. In the present study, we investigated cellular mechanisms of VMH oscillation by means of electrophysiological recordings and calcium imaging in juvenile rat slice preparations including the VMH. In the electrophysiological study, we performed membrane potential recording from neurons in the vicinity of pipettes for field potential recording. We found that the rhythmic bursts in the VMH were preserved in low Ca
2+ /high Mg2+ synaptic transmission blockade solution. During membrane hyperpolarization by current injection, the action potential was largely inhibited, but fluctuation of the membrane potential remained with a frequency similar to that at resting potential level. The electric VMH oscillation disappeared after application of either a gap junction blocker, carbenoxolone (100 µM), or a persistent sodium channel blocker, riluzole (20 µM). Membrane potentials and input resistances of rhythmic burst neurons in the VMH were not significantly changed during these manipulations. A calcium imaging study revealed that all VMH cells exhibiting synchronized rhythmic activity detected by intracellular calcium increases were silenced following the application of carbenoxolone. These results suggest that VMH oscillation arises from the activation of persistent sodium channels and coupling via gap junctions., (© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)- Published
- 2024
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26. Improvement of proteinuria by upadacitinib in a patient with refractory lupus membranous nephropathy.
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Hanai S, Kobayashi Y, Watanabe M, Ikeda K, Kubota S, and Nakagomi D
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- 2024
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27. Preoperative multidisciplinary team meeting improves the incidence of positive margins in pathological T2 prostate cancer.
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Kobatake K, Goto K, Honda Y, Naito M, Takemoto K, Miyamoto S, Sekino Y, Kitano H, Ikeda K, Hieda K, Goriki A, and Hinata N
- Subjects
- Humans, Male, Retrospective Studies, Aged, Middle Aged, Neoplasm Staging, Preoperative Care methods, Incidence, Interdisciplinary Communication, Prostatic Neoplasms surgery, Prostatic Neoplasms pathology, Prostatectomy methods, Margins of Excision, Robotic Surgical Procedures, Patient Care Team
- Abstract
Purpose: Positive surgical margins (PSM) after robot-assisted radical prostatectomy (RARP) for prostate cancer (PCa) can increase the risk of biochemical recurrence and PCa-specific mortality. We aimed to evaluate the impact of multidisciplinary team meetings (MDTM) on reducing the incidence of PSM following RARP., Methods: We retrospectively collected the clinical data of consecutive patients undergoing RARP at Hiroshima University between February 2017 and October 2023. The MDTM, comprising a radiologist, uropathologist, and urologist, reviewed the preoperative magnetic resonance imaging (MRI) and prostate biopsy results of each patient before RARP and considered the areas requiring attention during RARP. Surgeons were categorized as experienced or non-experienced based on the number of RARP procedures performed., Results: In the pT2 population, the PSM rate was significantly lower in cases evaluated using the MDTM than in those not (11.1% vs. 24.0%; p = 0.0067). Cox regression analysis identified that a PSA level > 7 ng/mL (hazard ratio 2.2799) and nerve-sparing procedures (hazard ratio 2.2619) were independent predictors of increased PSM risk while conducting an MDTM (hazard ratio 0.4773) was an independent predictor of reduced PSM risk in the pT2 population. In the pathological T3 population, there was no significant difference in PSM rates between cases evaluated and not evaluated at an MDTM. In cases evaluated at an MDTM, similar PSM rates were observed regardless of surgeon experience (10.4% for non-experienced and 11.9% for experienced surgeons; p = 0.9999)., Conclusions: An MDTM can improve the PSM rate of pT2 PCa following RARP., (© 2024. The Author(s).)
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- 2024
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28. Insulin-inspired hippocampal neuron-targeting technology for protein drug delivery.
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Kamei N, Ikeda K, Ohmoto Y, Fujisaki S, Shirata R, Maki M, Miyata M, Miyauchi Y, Nishiyama N, Yamada M, Ohigashi Y, and Takeda-Morishita M
- Subjects
- Animals, Rats, Recombinant Fusion Proteins metabolism, Recombinant Fusion Proteins genetics, Recombinant Fusion Proteins administration & dosage, Humans, Mice, Pinocytosis, Receptor, Insulin metabolism, Alzheimer Disease metabolism, Alzheimer Disease drug therapy, Cells, Cultured, Hippocampus metabolism, Neurons metabolism, Insulin metabolism, Drug Delivery Systems methods
- Abstract
Hippocampal neurons can be the first to be impaired with neurodegenerative disorders, including Alzheimer's disease (AD). Most drug candidates for causal therapy of AD cannot either enter the brain or accumulate around hippocampal neurons. Here, we genetically engineered insulin-fusion proteins, called hippocampal neuron-targeting (Ht) proteins, for targeting protein drugs to hippocampal neurons because insulin tends to accumulate in the neuronal cell layers of the hippocampus. In vitro examinations clarified that insulin and Ht proteins were internalized into the cultured hippocampal neurons through insulin receptor-mediated macropinocytosis. Cysteines were key determinants of the delivery of Ht proteins to hippocampal neurons, and insulin B chain mutant was most potent in delivering cargo proteins. In vivo accumulation of Ht proteins to hippocampal neuronal layers occurred after intracerebroventricular administration. Thus, hippocampal neuron-targeting technology can provide great help for developing protein drugs against neurodegenerative disorders., Competing Interests: Competing interests statement:The authors declare no competing interest.
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- 2024
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29. Fluoride Ion Storage and Conduction Mechanism in Fluoride Ion Battery Positive Electrode, Ruddlesden-Popper-Type Layered Perovskite La 1.2 Sr 1.8 Mn 2 O 7 Crystal.
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Miki H, Matsunaga T, Li Z, Cao Z, Yamamoto K, Kumar M, Thakur N, Watanabe T, Iba H, Kobayashi S, Kawaguchi S, Ikeda K, Hagihala M, Kamiyama T, Kuwabara A, Kageyama H, Maeda K, and Uchimoto Y
- Abstract
Structural characteristics on fluoride ion storage and conduction mechanism in La
1.2 Sr1.8 Mn2 O7 , and its fluoridated materials, La1.2 Sr1.8 Mn2 O7 F and La1.2 Sr1.8 Mn2 O7 F2 , for an all-solid-state fluoride ion battery positive electrode with a high volumetric capacity surpassing those of lithium-ion ones have been revealed using the Rietveld method and maximum entropy method. In La1.2 Sr1.8 Mn2 O7 , once the F- ions are taken into the NaCl slabs in its crystal through the charging process, it forms two stable fluoride compounds, La1.2 Sr1.8 Mn2 O7 F and La1.2 Sr1.8 Mn2 O7 F2 , with the help of the Mn oxidation reaction. In these oxyfluorides, thermal vibrations of the F- ions inserted are much larger, especially in the a - b plane, than along the c axis. When surplus energy, such as an electric field for charging, is applied to these crystals at near room temperature or higher, the anions immediately begin to jump to their neighboring lattice sites, resulting in sufficiently rapid and large ionic conduction. The MEM analyses and density functional theory (DFT) calculations have revealed that the F- ions enable to easily travel along the ⟨110⟩ directions in the NaCl slabs of these crystals. These structural features thus make La1.2 Sr1.8 Mn2 O7 and its fluorides possess both of two features incompatible with each other, ion storage and conduction, indispensable for rechargeable batteries.- Published
- 2024
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30. Association of methotrexate polyglutamates concentration with methotrexate efficacy and safety in patients with rheumatoid arthritis treated with predefined dose: results from the MIRACLE trial.
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Tamai H, Ikeda K, Miyamoto T, Taguchi H, Kuo CF, Shin K, Hirata S, Okano Y, Sato S, Yasuoka H, Kuwana M, Ishii T, Kameda H, Kojima T, Nishi Y, Mori M, Miyagishi H, Toshima G, Sato Y, Tsai WC, Takeuchi T, and Kaneko Y
- Abstract
Objectives: The usefulness of methotrexate-polyglutamates (MTX-PGs) concentration for management of rheumatoid arthritis has been debated. We aimed to clarify the association of MTX-PGs concentration with efficacy and safety in MTX-naïve patients initiating MTX in a prospective interventional clinical trial., Methods: The MIRACLE trial enrolled 300 MTX-naïve patients. Oral MTX was initiated and increased to the maximum tolerated dose by week 12. Patients who did not achieve remission according to the Simplified Disease Activity Index at week 24 were randomised to either the continued dose or reduced dose group and were started on subcutaneous adalimumab. We measured the concentrations of MTX-PGs in erythrocytes using liquid chromatography-tandem mass spectrometry and analysed the association of these concentrations with efficacy and safety., Results: The mean concentration of total MTX-PGs increased with an increasing dose of MTX and continued to elevate for another 12 weeks after the dose was fixed. At week 24, the total MTX-PGs concentration was 110.5 (SD 43.8) nmol/L with MTX dose of 12.6 (3.0) mg/week (0.23 (0.07) mg/kg/week). During MTX monotherapy, the higher MTX-PGs concentration was an independent factor for lower disease activity; however, this association disappeared after adalimumab initiation in patients with continued MTX dose. Hepatotoxicity was related to the higher MTX-PGs concentration regardless of adalimumab use. The total MTX-PGs concentration was significantly elevated by lower estimated glomerular filtration rate, serum albumin and body mass index., Conclusions: The MIRACLE trial demonstrated that higher total MTX-PGs concentration in erythrocytes is related to the higher efficacy and lower safety of MTX., Trial Registration Number: NCT03505008., Competing Interests: Competing interests: HTam received honoraria from AbbVie, Eisai; support for attending meetings from PhRMA. KI received grants from Mitsubishi-Tanabe, Eli Lilly; honoraria from AbbVie, Eisai, Pfizer, Mitsubishi-Tanabe, Janssen, Novartis, UCB, Daiichi-Sankyo, Eli Lilly, Gilead Sciences, AstraZeneca, Asahi Kasei, Chugai, Bristol-Myers Squibb. TM received consulting fees from Eisai, Gilead Sciences; honoraria from Eisai, AbbVie, Eli Lilly, Gilead Sciences, Asahi Kasei. KS received grants/research support from Novartis, Astellas, AbbVie, Bristol-Myers Squibb, Yuhan; consulting fees from KD Bio. SH received grants from AbbVie, Asahi Kasei, Chugai, Eisai, Eli Lily, Otsuka, Taisho, UCB; honoraria from AbbVie, Asahi-Kasei, Astellas, AstraZeneca, Ayumi, Bristol-Myers Squibb, Boehringer Ingelheim, Chugai, Daiichi-Sankyo, Eisai, Eli Lilly, Gilead Sciences, Glaxo SmithKline, Janssen, Nihon-Shinyaku, Novartis, Otsuka Pharmaceutical, Pfizer, Taisho, Tanabe-Mitsubishi, UCB; participated on advisory boards of AbbVie, Astellas, Bristol Myers Squibb, Eisai, Eli Lilly, Gilead Sciences, Janssen, Taisho, UCB. SS received honoraria from AbbVie, Pfizer. HY received grants from AbbVie, Boehringer Ingelheim, Gilead Sciences, Nippon Shinyaku, Asahi Kasei, Chugai, Eisai, Mitsubishi-Tanabe, Taisho; honoraria from AbbVie, Asahi Kasei, Astellas, Daiichi Sankyo, Eisai, Eli Lilly, Pfizer, Janssen, Sanofi, Teijin, Boehringer Ingelheim, Bayer, Viatris, Kissei, Takeda, Mitsubishi-Tanabe, Chugai, Novartis. MK received grants and royalties from MBL; consulting fees from Boehringer Ingelheim, Mochida, Kissei, GSK, AstraZeneca, Mitsubishi-Tanabe, Janssen, Biogen; received honoraria from Boehringer Ingelheim, Chugai, Asahi Kasei; participated on advisory board of Argenx. TI received honoraria from Asahi Kasei, GSK, Chugai, Pfizer, Eli Lilly, Boehringer-Ingelheim, AstraZeneca. HK received a grant from Pfizer, AbbVie, Asahi Kasei, Boehringer Ingelheim, Chugai, Eisai, Mitsubishi-Tanabe, Taisho; consulting fees from Sanofi; honoraria from AbbVie, Asahi Kasei, AstraZeneca, Boehringer Ingelheim, Bristol-Myers Squibb, Chugai, Eisai, Eli Lilly, Janssen, Mitsubishi-Tanabe, Novartis, Pfizer. TK received grant/research support from AbbVie, Astellas, Chugai; honoraria from AbbVie, Astellas, Bristol-Myers Squibb, Chugai, Daiichi-Sankyo, Eli Lilly, Pfizer, Eisai, Taisho, UCB; participated on board of JCR subcommittee on Guidelines for RA Therapeutics. YN is a shareholder and employee of Eisai. MM is a shareholder and employee of Eisai. HM is an employee of Eisai. YS received honoraria from Mochida. WT received consulting fees and honoraria from Eli Lilly, Eisai; honoraria from Pfizer. TT received consulting fees from AbbVie, Eli Lilly, Gilead Sciences, Mitsubishi-Tanabe, Taisho; honoraria from AbbVie, Astellas, AstraZeneca, Chugai, Eisai, Eli Lilly, Gilead Sciences, Janssen, Mitsubishi-Tanabe, Pfizer, Taisho. YK received grants from AbbVie, Asahi Kasei, Ayumi, Boehringer Ingelheim, Chugai, Eisai, Gilead Sciences, Mitsubishi-Tanabe, Taisho, UCB; consulting fees from AbbVie, Asahi Kasei, Bristol-Myers Squibb, Eli Lilly, Gilead Sciences, Pfizer, Taisho, UCB; honoraria from AbbVie, Asahi Kasei, Astellas, AstraZeneca, Ayumi, Bristol-Myers Squibb, Chugai, Daiichi-Sankyo, Eisai, Eli Lilly, Gilead, Glaxo SmithKline, Janssen, Mitsubishi-Tanabe, Novartis, Pfizer, Sanofi, Taisho, UCB. The other coauthors declare no relevant conflicts of interest., (© Author(s) (or their employer(s)) 2024. No commercial re-use. See rights and permissions. Published by BMJ on behalf of EULAR.)
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- 2024
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31. Dietary habits and genetic susceptibility: correlations between nutritional intake and genetic risks for schizophrenia and bipolar disorder.
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Ohi K, Nishizawa D, Saito T, Goto T, Kubota I, Shinoda T, Fujikane D, Hasegawa J, Sato N, Tanioka F, Sugimura H, Ikeda K, and Shioiri T
- Subjects
- Humans, Male, Female, Aged, Middle Aged, Multifactorial Inheritance, Diet, Risk Factors, Schizophrenia genetics, Schizophrenia epidemiology, Feeding Behavior, Genetic Predisposition to Disease, Bipolar Disorder genetics, Genome-Wide Association Study
- Abstract
Dietary habits may impact the prevention and management of schizophrenia (SCZ) and bipolar disorder (BD), and genetic and environmental factors can influence both these habits and these disorders. This study investigated the effects of genetic predispositions to SCZ and BD on current dietary habits among older adults with lifestyle-related diseases, potentially offering insights for preventive mental health strategies. A cohort of 730 older patients who were diagnosed with or suspected of having lifestyle-related diseases was assessed for eight current dietary categories: miso soup, Japanese tea, green and yellow vegetables, light-colored vegetables, fruits, pickles, meats, and soybeans. Polygenic risk scores (PRSs) for the risk of SCZ and BD, including BD types I and II, the shared risk of SCZ and BD, and the differentiation of SCZ from BD, were calculated utilizing data from large-scale genome-wide association studies (GWASs). Our findings revealed that PRSs for SCZ and BD risk significantly influenced specific dietary habits, particularly decreased consumption of nutrient-rich foods such as light-colored vegetables (SCZ, R
2 = 0.0096, p = 3.54 × 10-3 ; BD, R2 = 0.0074, p = 9.09 × 10-3 ) and soybeans (SCZ, R2 = 0.0061, p = 0.019; BD, R2 = 0.014, p = 8.38 × 10-4 ). Notable differences in dietary effects were observed between PRSs for BD I and BD II, with a more pronounced impact associated with BD I (e.g., light-colored vegetables, BD I, R2 = 0.015, p = 3.11 × 10-4 ; BD II, p > 0.05). Moreover, shared genetic factors for SCZ and BD were correlated with lower intakes of miso soup (R2 = 0.013, p = 1.21 × 10-3 ), Japanese tea (R2 = 0.0092, p = 5.59 × 10-3 ), light-colored vegetables (R2 = 0.010, p = 2.92 × 10-3 ), and soybeans (R2 = 0.014, p = 3.13 × 10-4 ). No significant correlations were found between PRSs for differentiating SCZ from BD and any dietary patterns (p > 6.25 × 10-3 ). Genetic risks shared by individuals with SCZ and BD may influence dietary choices in older adults, emphasizing the potential for dietary modifications as part of comprehensive strategies for the prevention of the SCZ and BD onset, as well as for the treatment of individuals at risk of or diagnosed with SCZ and BD., (© 2024. The Author(s).)- Published
- 2024
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32. Comparison of survivals between sublobar resection and lobar resection for patients with clinical stage I non-small cell lung cancer and interstitial lung disease: a propensity score matching analysis.
- Author
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Matsushima R, Fujino K, Motooka Y, Yamada H, Shirakami C, Shinchi Y, Osumi H, Yamada T, Yoshimoto K, Ikeda K, Kubota I, and Suzuki M
- Subjects
- Humans, Male, Female, Retrospective Studies, Middle Aged, Aged, Neoplasm Staging, Prognosis, Survival Rate, Carcinoma, Non-Small-Cell Lung surgery, Carcinoma, Non-Small-Cell Lung mortality, Carcinoma, Non-Small-Cell Lung pathology, Propensity Score, Lung Neoplasms surgery, Lung Neoplasms mortality, Lung Neoplasms pathology, Lung Diseases, Interstitial surgery, Lung Diseases, Interstitial mortality, Lung Diseases, Interstitial pathology, Pneumonectomy methods, Pneumonectomy mortality
- Abstract
Background: Patients with early-stage lung cancer and interstitial lung disease have a poorer prognosis than those without interstitial lung disease. This study aimed to compare the long-term outcomes of lobar and sublobar resections in these patients., Methods: We retrospectively analyzed 138 consecutive patients with clinical stage I non-small cell lung cancer and interstitial lung disease who underwent surgical treatment at two institutions between January 2010 and December 2020. Propensity score matching analysis was performed to adjust for baseline characteristics., Results: Thirty-six patients underwent sublobar resection and 102 underwent lobar resection. The median follow-up was 45.7 months. In all patients, 5-year overall survival (OS) rates were 33.2% and 73.2%, and 5-year recurrence-free survival (RFS) rates were 24.2% and 60.1% in the sublobar and lobar resection groups, respectively (p < 0.01, <0.01). Death due to lung cancer and locoregional recurrence were significantly more frequent in the sublobar resection group than in the lobar resection group (p = 0.034, <0.01, respectively). On propensity score matching analysis, the 5-year OS rates of the 19 matched pairs were 46.3% and 73.2%, and the RFS rates were 31.6% and 67.6% in the sublobar and lobar resection groups, respectively (p = 0.036, <0.01). The Cox proportional hazards model demonstrated a significant association between lobar resection and improved survival (p = 0.047)., Conclusion: The patients in the lobar resection group had better survival rates than those in the sublobar resection group. In terms of long-term prognosis, deliberately limited surgery may not be necessary for patients who tolerate lobectomy., (© 2024 The Author(s). Thoracic Cancer published by John Wiley & Sons Australia, Ltd.)
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- 2024
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33. Caenorhabditis elegans for opioid addiction research.
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Ide S and Ikeda K
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- Animals, Humans, Receptors, Opioid metabolism, Caenorhabditis elegans, Opioid-Related Disorders metabolism, Disease Models, Animal
- Abstract
The problem of drug addiction has become a profound societal problem worldwide. A better understanding of the neurobiological basis of addiction and the discovery of more effective treatments are needed. Recent studies have shown that many mechanisms that underlie addiction exist in more primitive organisms, including the nematode Caenorhabditis elegans (C. elegans). C. elegans is also hypothesized to possess a functional opioid-like system, including the endogenous opioid-like peptide NLP-24 and opioid-like receptor NPR-17. Opioids, such as morphine, are thought to cause addiction-like behavior by activating dopamine nerves in C. elegans via the opioid-like system. Accumulating evidence suggests that C. elegans is an excellent animal model for identifying molecular mechanisms of addiction., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier Ltd. All rights reserved.)
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- 2024
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34. Case Report: An Adult Case of Poretti-Boltshauser Syndrome Diagnosed by Medical Checkup.
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Ikeda K, Tamagake A, Kubota T, Izumi R, Yamaguchi T, Yanagi K, Misu T, Aoki Y, Kaname T, and Aoki M
- Subjects
- Humans, Female, Aged, Magnetic Resonance Imaging, Hamartoma Syndrome, Multiple genetics, Hamartoma Syndrome, Multiple diagnosis, Hamartoma Syndrome, Multiple diagnostic imaging, Laminin genetics
- Abstract
This report describes an adult case of Poretti-Boltshauser syndrome (PTBHS) and with novel variants of LAMA1. A 65-year-old Japanese woman with cerebellar malformation identified during a medical checkup was referred to our hospital. Subsequently, neurological examination, brain imaging, and genetic investigation via whole-exome sequencing were performed. The patient presented with mild cerebellar ataxia and intellectual disability. Magnetic resonance imaging revealed cerebellar dysplasia and cysts and an absence of molar tooth sign. Genetic analysis revealed a novel homozygous variant of c.1711_1712del in LAMA1 (NM_005559.4). Most cases with PTBHS are reported in pediatric patients; however, our patient expressed a mild phenotype and was undiagnosed until her 60 s. These findings suggest that PTBHS should be considered in not only pediatric cerebellar dysplasia but also adult cerebellar ataxia with mild presentation., (© 2024. The Author(s).)
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- 2024
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35. Development of a laparoscopic sigmoidectomy simulator: Sigmaster.
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Shigaki T, Hasegawa H, Teramura K, Takeshita N, Ikeda K, Tsukada Y, Nishizawa Y, Sasaki T, and Ito M
- Subjects
- Humans, Simulation Training methods, Colectomy methods, Colectomy education, Colectomy instrumentation, Models, Anatomic, Equipment Design, Laparoscopy education, Laparoscopy methods, Laparoscopy instrumentation, Colon, Sigmoid surgery, Colon, Sigmoid anatomy & histology
- Abstract
The sigmoid colon simulator was designed to accurately reproduce the anatomical layer structure and the arrangement of characteristic organs in each layer, and to have conductivity so that energy devices can be used. Dry polyester fibers were used to reproduce the layered structures, which included characteristic blood vessels, nerve sheaths, and intestinal tracts. The adhesive strength of the layers was controlled to allow realistic peeling techniques. The features of the Sigmaster are illustrated through a comparison of simulated sigmoidectomy using Sigmaster and actual surgery. We developed a laparoscopic sigmoidectomy simulator called Sigmaster. Sigmaster is a training device that closely reproduces the membrane structures of the human body and allows surgeons to experience the entire laparoscopic sigmoidectomy process., (© 2024. The Author(s) under exclusive licence to Springer Nature Singapore Pte Ltd.)
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- 2024
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36. Diffusion weighted imaging combining respiratory triggering and navigator echo tracking in the upper abdomen.
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Tachikawa Y, Hamano H, Chiwata N, Yoshikai H, Ikeda K, Maki Y, Takahashi Y, and Koike M
- Subjects
- Humans, Male, Female, Adult, Middle Aged, Aged, Healthy Volunteers, Motion, Image Processing, Computer-Assisted methods, Image Interpretation, Computer-Assisted methods, Reproducibility of Results, Young Adult, Algorithms, Respiratory-Gated Imaging Techniques methods, Diffusion Magnetic Resonance Imaging methods, Abdomen diagnostic imaging, Signal-To-Noise Ratio, Respiration
- Abstract
Objectives: To evaluate a new motion correction method, named RT + NV Track, for upper abdominal DWI that combines the respiratory triggering (RT) method using a respiration sensor and the Navigator Track (NV Track) method using navigator echoes., Materials and Methods: To evaluate image quality acquired upper abdominal DWI and ADC images with RT, NV, and RT + NV Track in 10 healthy volunteers and 35 patients, signal-to-noise efficiency (SNR
efficiency ) and the coefficient of variation (CV) of ADC values were measured. Five radiologists independently performed qualitative image-analysis assessments., Results: RT + NV Track showed significantly higher SNRefficiency than RT and NV (14.01 ± 4.86 vs 12.05 ± 4.65, 10.05 ± 3.18; p < 0.001, p < 0.001). RT + NV Track was superior to RT and equal or better quality than NV in CV and visual evaluation of ADC values (0.033 ± 0.018 vs 0.080 ± 0.042, 0.057 ± 0.034; p < 0.001, p < 0.001). RT + NV Track tends to acquire only expiratory data rather than NV, even in patients with relatively rapid breathing, and can correct for respiratory depth variations, a weakness of RT, thus minimizing image quality degradation., Conclusion: The RT + NV Track method is an efficient imaging method that combines the advantages of both RT and NV methods in upper abdominal DWI, providing stably good images in a short scan time., (© 2024. The Author(s), under exclusive licence to European Society for Magnetic Resonance in Medicine and Biology (ESMRMB).)- Published
- 2024
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37. Examination of changes in the breathing intolerance index to determine the respiratory support needs of very low birth weight infants.
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Mizogami M, Hasegawa H, Yamada Y, Wasa M, and Ikeda K
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- Humans, Infant, Newborn, Male, Female, Intensive Care Units, Neonatal, Gestational Age, Respiratory Muscles physiopathology, Respiratory Insufficiency therapy, Respiratory Insufficiency physiopathology, Tidal Volume, Infant, Premature, Respiration, Artificial methods, Respiratory Distress Syndrome, Newborn therapy, Noninvasive Ventilation methods, Ventilator Weaning methods, Infant, Very Low Birth Weight
- Abstract
Background: The breathing intolerance index (BITI) is used to evaluate respiratory muscle tolerance. The higher the ratio of the inspiratory time to the total breathing time and the ratio of the tidal volume to the vital capacity, the more easily the respiratory muscles become fatigued. The BITI is high with chronic respiratory failure, and values of 0.15 or more indicate the need for assisted ventilation., Objective: This study aimed to examine the changes in the BITI of very low birth weight infants (VLBWIs) and determine whether it is possible to use the BITI as an objective indicator of the timing of noninvasive respiratory support (NRS) withdrawal., Methods: VLBWIs admitted to our neonatal intensive care unit between July 2020 and July 2022 under NRS at 36 weeks' postmenstrual age (PMA). If the BITI was less than 0.15, then we attempted to determine whether NRS could be withdrawn., Results: Sixteen infants with a median gestational age and birth weight of 30.9 weeks and 1249 g, respectively, were eligible. The median PMA at the time of the first examination was 36.6 weeks. The BITI of two VLBWIs was less than 0.15. For 11 of the other VLBWIs, the BITI decreased over time to less than 0.15 at 39 weeks' PMA. After confirming that the BITI was less than 0.15, weaning from NRS was attempted. Weaning from NRS was possible except one VLBWI., Conclusion: The BITI can help evaluate respiratory tolerance and could be an objective indicator of the timing of NRS withdrawal., (© 2024 Wiley Periodicals LLC.)
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- 2024
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38. Comparison of the effects of renal denervation at early or advanced stages of hypertension on cardiac, renal, and adipose tissue pathology in Dahl salt-sensitive rats.
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Nagata K, Tagami K, Okuzawa T, Hayakawa M, Nomura A, Nishimura T, Ikeda K, Kitada K, Kobuchi S, Fujisawa Y, Nishiyama A, and Murohara T
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- Animals, Rats, Male, Sympathectomy, Denervation, Myocardium pathology, Myocardium metabolism, Sodium Chloride, Dietary, Heart innervation, Heart drug effects, Heart physiopathology, Rats, Inbred Dahl, Kidney innervation, Kidney pathology, Kidney drug effects, Hypertension, Adipose Tissue pathology, Blood Pressure drug effects
- Abstract
Renal denervation (RDN) has emerged as a novel therapy for drug-resistant hypertension. We here examined the effects of RDN at early versus advanced stages of hypertension on blood pressure and organ pathology in rats with salt-sensitive hypertension. Dahl salt-sensitive (DahlS) rats fed an 8% NaCl diet from 6 weeks of age were subjected to RDN (surgical ablation and application of 10% phenol in ethanol) or sham surgery at 7 (early stage) or 9 (advanced stage) weeks and were studied at 12 weeks. RDN at early or advanced stages resulted in a moderate lowering of blood pressure. Although RDN at neither stage affected left ventricular (LV) and cardiomyocyte hypertrophy, it ameliorated LV diastolic dysfunction, fibrosis, and inflammation at both stages. Intervention at both stages also attenuated renal injury as well as downregulated the expression of angiotensinogen and angiotensin-converting enzyme (ACE) genes and angiotensin II type 1 receptor protein in the kidney. Furthermore, RDN at both stages inhibited proinflammatory gene expression in adipose tissue. The early intervention reduced both visceral fat mass and adipocyte size in association with downregulation of angiotensinogen and ACE gene expression. In contrast, the late intervention increased fat mass without affecting adipocyte size as well as attenuated angiotensinogen and ACE gene expression. Our results thus indicate that RDN at early or late stages after salt loading moderately alleviated hypertension and substantially ameliorated cardiac and renal injury and adipose tissue inflammation in DahlS rats. They also suggest that cross talk among the kidney, cardiovascular system, and adipose tissue may contribute to salt-sensitive hypertension. Supposed mechanism for the beneficial effects of RDN on hypertension and target organ damage in DahlS rats. RDN at early or late stages after salt loading moderately alleviated hypertension and substantially ameliorated renal injury in DahlS rats. Cross talk among the kidney, cardiovascular system, and adipose tissue possibly mediated by circulating RAS may contribute to salt-sensitive hypertension. LV; left ventricular, NE; norepinephrine, RAS; renin-angiotensin system, RDN; renal denervation., (© 2024. The Author(s).)
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- 2024
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39. Binaural interaction in human auditory brainstem and middle-latency responses affected by sound frequency band, lateralization predictability, and attended modality.
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Ikeda K and Campbell TA
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- Humans, Male, Female, Adult, Young Adult, Brain Stem physiology, Auditory Pathways physiology, Time Factors, Electroencephalography, Perceptual Masking, Photic Stimulation, Auditory Perception physiology, Auditory Threshold, Acoustic Stimulation, Evoked Potentials, Auditory, Brain Stem, Reaction Time, Attention physiology, Functional Laterality
- Abstract
The binaural interaction component (BIC) of the auditory evoked potential is the difference between the waveforms of the binaural response and the sum of left and right monaural responses. This investigation examined BICs of the auditory brainstem (ABR) and middle-latency (MLR) responses concerning three objectives: 1) the level of the auditory system at which low-frequency dominance in BIC amplitudes begins when the binaural temporal fine structure is more influential with lower- than higher-frequency content; 2) how BICs vary as a function of frequency and lateralization predictability, as could relate to the improved lateralization of high-frequency sounds; 3) how attention affects BICs. Sixteen right-handed participants were presented with either low-passed (< 1000 Hz) or high-passed (> 2000 Hz) clicks at 30 dB SL with a 38 dB (A) masking noise, at a stimulus onset asynchrony of 180 ms. Further, this repeated-measures design manipulated stimulus presentation (binaural, left monaural, right monaural), lateralization predictability (unpredictable, predictable), and attended modality (either auditory or visual). For the objectives, respectively, the results were: 1) whereas low-frequency dominance in BIC amplitudes began during, and continued after, the Na-BIC, binaural (center) as well as summed monaural (left and right) amplitudes revealed low-frequency dominance only after the Na wave; 2) with a predictable position that was fixed, no BIC exhibited equivalent amplitudes between low- and high-passed clicks; 3) whether clicks were low- or high-passed, selective attention affected the ABR-BIC yet not MLR-BICs. These findings indicate that low-frequency dominance in lateralization begins at the Na latency, being independent of the efferent cortico-collicular pathway's influence., Competing Interests: Declaration of competing interest None., (Copyright © 2024 The Author(s). Published by Elsevier B.V. All rights reserved.)
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- 2024
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40. Investigation of the outbreak of Clostridium perfringens using single nucleotide polymorphism analysis for genotyping in Toyama, Japan, 2023.
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Saito K, Kimata K, Watahiki M, Isobe J, Kanatani JI, Ikeda K, Takeuchi T, Matsuzaki C, and Oishi K
- Abstract
Clostridium perfringens, which produces C. perfringens enterotoxin (CPE), is a major causative agent of food poisoning owing to its gastrointestinal symptoms. Genotyping is important for identifying the etiological agent in outbreaks of C. perfringens. We attempted to genotype strains isolated from an outbreak of food poisoning in Toyama in 2023 using single nucleotide polymorphism (SNP) analysis. The strains of C. perfringens were isolated from a piece of curry food consumed by all patients and from the feces of the patients and employees. The cpe gene was detected in isolates from patients and curry food. The cpe-negative isolates were found in patients who consumed curry foods and in employees. The results of the SNP analysis suggest that the patient- and curry-derived isolates were likely from the same source but were unlikely to be related to the employee-derived isolates. The results of the SNP and pulsed-field gel electrophoresis (PFGE) analyses were consistent, indicating that the patient- and curry-derived isolates came from the same source. SNP analysis, a whole-genome-based genotyping method, is a promising alternative to the traditional PFGE method. Further studies are needed to accumulate more experience with genotyping using SNP analysis for the epidemiological investigation of outbreaks of C. perfringens.
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- 2024
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41. Novel sialidase inhibitors suppress mumps virus replication and infection.
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Takahashi T, Kurebayashi Y, Otsubo T, Ikeda K, Konagaya K, Suzuki S, Yamazaki M, Suzuki K, Narimichi Y, Minami A, and Takeuchi H
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- Humans, Enzyme Inhibitors pharmacology, Enzyme Inhibitors chemistry, Enzyme Inhibitors chemical synthesis, Animals, Chlorocebus aethiops, HN Protein metabolism, HN Protein chemistry, Vero Cells, Mumps drug therapy, Mumps virology, Mumps virus drug effects, Virus Replication drug effects, Neuraminidase antagonists & inhibitors, Neuraminidase metabolism, Antiviral Agents pharmacology, Antiviral Agents chemistry, Antiviral Agents chemical synthesis
- Abstract
The prevalent human pathogen, mumps virus (MuV; orthorubulavirus parotitidis) causes various complications and serious sequelae, such as meningitis, encephalitis, deafness, and impaired fertility. Direct-acting antivirals (DAAs) targeting MuV which can prevent mumps and mumps-associated complications and sequelae are yet to be developed. Paramyxoviridae family members, such as MuV, possess viral surface hemagglutinin-neuraminidase (HN) protein with sialidase activity which facilitates efficient viral replication. Therefore, to develop DAAs targeting MuV we synthesized MuV sialidase inhibitors. It is proposed that the viral HN has a single functional site for N-acetylneuraminic acid (Neu5Ac) binding and sialidase activity. Further, the known MuV sialidase inhibitor is an analog of Neu5Ac-2,3-didehydro-2-deoxy-N-acetylneuraminic acid (DANA)-which lacks potency. DANA derivatives with higher MuV sialidase inhibitory potency are lacking. The MuV-HN-Neu5Ac binding site has a hydrophobic cavity adjacent to the C4 position of Neu5Ac. Exploiting this, here, we synthesized DANA derivatives with increasing hydrophobicity at its C4 position and created 3 novel sialidase inhibitors (Compounds 1, 2, and 3) with higher specificity for MuV-HN than DANA; they inhibited MuV replication step to greater extent than DANA. Furthermore, they also inhibited hemagglutination and the MuV infection step. The insight-that these 3 novel DANA derivatives possess linear hydrocarbon groups at the C4-hydroxyl group of DANA-could help develop highly potent sialidase inhibitors with high specificity for MuV sialidase, which may function as direct-acting MuV-specific antivirals., (© The Author(s) 2024. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
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- 2024
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42. Traction MRI of the Elbow: Age-Based Effects and Implications.
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Kohyama S, Ikeda K, Okamoto Y, and Yoshii Y
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Background/objectives: We previously reported that traction magnetic resonance imaging (MRI) of the elbow without arthrography increases the width of the radiocapitellar joint (RC) and improves articular cartilage visibility. However, the effects of axial traction on different age groups have not yet been evaluated. We hypothesized that the effect of traction would decrease as the participants' age increased., Methods: We enrolled 30 healthy volunteers, ten each in their 20s, 30s, and 40s. The male-to-female ratio in each age group was 1:1. Elbow MRI was performed without traction and with 3, 5, and 7 kg axial traction. We evaluated joint space width (JW), humeral articular cartilage visibility, and intraprocedural pain/discomfort. We measured JW and cartilage visibility at the RC and the lateral and medial thirds of the ulnohumeral joint., Results: The older age groups exhibited narrower JWs without traction. Axial traction increased the JW and improved the visibility of the RC in all age groups. No significant differences were observed in the ulnohumeral joint's lateral or medial thirds, but pain and discomfort increased with heavier traction weights., Conclusions: For participants in their 20s and 30s, axial traction of 3 kg seemed appropriate, while 7 kg traction was considered for those in their 40s.
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- 2024
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43. Low remission rates and high incidence of adverse events in a prospective VEXAS syndrome registry.
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Kirino Y, Maeda A, Asano T, Migita K, Hidaka Y, Ida H, Kobayashi D, Oda N, Rokutanda R, Fujieda Y, Atsumi T, Kishida D, Kobayashi H, Shiratsuchi M, Shimizu T, Kawakami A, Tanaka K, Tsuji T, Mishima K, Miyamae T, Hasegawa A, Ikeda K, Watanabe T, Yamaguchi Y, Nishikomori R, Ohara O, and Nakajima H
- Abstract
Objective: We aimed to gather real-world clinical evidence of detailed disease activity, treatments, remission rates, and adverse events (AEs) associated with vacuoles, E1 enzyme, X-linked, autoinflammatory, somatic (VEXAS) syndrome in a prospective study., Methods: Patients in Japan suspected of having VEXAS syndrome were enrolled in a registry study. A novel disease activity measure (VEXASCAF) assessing 11 symptoms associated with VEXAS syndrome was evaluated at enrolment and after 3 months. AEs, survival, CRP levels, and treatments were also recorded at enrolment and 3 months after enrolment. All exons of UBA1 were sequenced using a next-generation sequencer to determine the variant allele frequencies of pathogenic variants in the peripheral blood of all patients., Results: Of the 55 registered patients, 30 patients were confirmed to have pathogenic variants of UBA1. All patients were male, with a median age of 73.5 years. VEXASCAF and CRP levels decreased significantly at 3 months post-enrolment, but the oral prednisolone dose did not change. Only two patients achieved complete remission according to FRENVEX at 3 months after enrolment. During the observation period of 6 months, 28 AEs were observed, including 3 deaths, 4 malignancies from two cases, 2 thromboses, and 13 infections (including 4 mycobacterial infections). Inflammation of the lung and cervical region (i.e. parotid and submandibular gland swelling, tonsillitis, cervical swelling, and pain) were the most common AEs., Conclusions: Patients with VEXAS syndrome required high-dose glucocorticoids to achieve remission, and complications-such as malignancy, thrombosis, and infection-occurred frequently within a short observation period., (© The Author(s) 2024. Published by Oxford University Press on behalf of the British Society for Rheumatology. All rights reserved. For permissions, please email: journals.permissions@oup.com.)
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- 2024
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44. γ-Aminobutyric acid type A receptor β1 subunit gene polymorphisms are associated with the sedative and amnesic effects of midazolam.
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Kosaki Y, Nishizawa D, Hasegawa J, Yoshida K, Ikeda K, and Ichinohe T
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- Humans, Male, Female, Adult, Middle Aged, Protein Subunits genetics, Midazolam pharmacology, Midazolam administration & dosage, Receptors, GABA-A genetics, Polymorphism, Single Nucleotide genetics, Hypnotics and Sedatives pharmacology, Genome-Wide Association Study, Amnesia genetics
- Abstract
Midazolam is widely used for intravenous sedation. However, wide interindividual variability is seen in the sensitivity to midazolam. The association between genetic factors and interindividual differences in midazolam sensitivity remains unclear. The present study explored the association between common genetic variants and sedative and amnesic effects of midazolam. This prospective study included patients who were scheduled to undergo dental procedures under intravenous sedation. The sedative effect was evaluated using the Ramsay sedation scale 5 min after midazolam (0.05 mg/kg) administration. We employed two parallel approaches in this study: genome-wide approach and candidate gene approach. The γ-aminobutyric acid type A receptor subunit genes were selected as candidate genes. Multivariate linear regression analyses were performed to investigate the association between the Ramsay sedation scale and genetic variants. We also analyzed the association between the presence of anterograde amnesia and genetic variants using multivariate binominal logistic regression analyses. The analyses were adjusted for potential confounding factors. A total of 191 patients were included in the analyses. In the genome-wide association analyses, no significant association was found between the genetic variants and Ramsay scores. In the candidate gene analyses, the rs73247636 (dominant model: β = 0.72 [95% confidence interval, 0.34 to 1.10], P < 0.001) and rs56278524 (dominant model: β = 0.73 [0.37 to 1.10], P < 0.001) polymorphisms of the GABRB1 gene were significantly associated with Ramsay scores. Additionally, the rs73247636 (dominant model: odds ratio [OR] = 8.39 [2.36 to 29.85], P = 0.001) and rs56278524 (dominant model: OR = 15.26 [3.42 to 68.07], P < 0.001) polymorphisms were also significantly associated with the presence of anterograde amnesia. The rs73247636 and rs56278524 single-nucleotide polymorphisms of GABRB1 were associated with the sedative and amnesic effects of midazolam., (© 2024. The Author(s).)
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- 2024
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45. Newly established borderline resectable 1 (BR1) category is one of the favorable candidates for selecting the use of multidisciplinary combination therapy in patients with advanced hepatocellular carcinoma treated with systemic therapy.
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Kawamura Y, Akuta N, Shindoh J, Matsumura M, Okubo S, Tominaga L, Yamamoto S, Eriksson Y, Hosaka T, Saitoh S, Sezaki H, Suzuki F, Suzuki Y, Ikeda K, Arase Y, Hashimoto M, Kozuka T, and Kumada H
- Abstract
Background: The aim of this study was to evaluate the newly established oncological criteria of resectability of hepatocellular carcinoma (HCC) for selecting suitable candidates for systemic and combination therapy., Methods: The data of 156 consecutive HCC patients with intrahepatic target nodules who had initially received systemic therapy (lenvatinib and atezolizumab plus bevacizumab) were reviewed. The patients were classified into three groups according to the novel oncological criteria for resectability (R, resectable; BR1, borderline resectable 1; and BR2, borderline resectable 2). The prognostic ability and clinical utility for selecting this population to receive combined use of multiple systemic sequential and locoregional therapy was then evaluated. Combined use of systemic sequential therapy with more than two agents and locoregional treatment was defined as multidisciplinary combination therapy (MCT), while systemic sequential therapy only and repeated locoregional treatment was defined as a single treatment procedure (STP)., Results: Patients classified as R and BR1 had significantly better overall survival (OS) compared with BR2 (R vs. BR2, p = 0.012; BR1 vs. BR2, p = 0.004). However, there was no significant difference between R and BR1 (p = 1.000), in spite of significantly worse oncological status in the BR1 patients. Following a R0 resection and MCT, the BR1 patients had significantly better OS compared with those receiving STP or no additional treatment (median OS, not reached vs. 25.2 months and 20.1 vs. 11.3 months, respectively; p = 0.034)., Conclusions: In patients with advanced HCC with intrahepatic target nodules the BR1 category is one of the favorable candidates for selecting those to be treated with MCT strategies., (© 2024 Japan Society of Hepatology.)
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- 2024
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46. Association between Motoric Cognitive Risk Syndrome and Indicators of Reflecting Independent Living among Community-Dwelling Older Adults in Japan: A Cross-Sectional Study.
- Author
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Takimoto K, Takebayashi H, Yoshikawa Y, Sasano H, Tsujishita S, and Ikeda K
- Abstract
The purpose of this study was to examine whether motoric cognitive risk syndrome (MCR) is associated with various indicators of independent living among community-dwelling older adults in Japan. The study design was a cross-sectional study, and the participants were 107 community-dwelling older adults (mean age 79 ± 7 years) who were living independently. The participants were administered the Questionnaire for Medical Checkup of Old-Old (QMCOO) as an indicator of health status and the Japan Science and Technology Agency Index of Competence (JST-IC) as an indicator of higher levels of functioning capacity, among others. In addition, we assessed physical frailty (J-CHS), sarcopenia (AWGS2019), and MCR (slow gait + subjective memory complaints), which are predictors of adverse events in the elderly. Multiple regression analysis with QMCOO as the response variable showed that MCR ( p = 0.01, β: 0.25) and physical frailty ( p < 0.01, β: 0.43) were significantly associated. In addition, analysis with JST-IC as the response variable showed that MCR ( p = 0.03, β: -0.20), physical frailty ( p = 0.01, β: -0.24) and age ( p = 0.02, β: -0.21) were significantly associated. In conclusion, MCR was found to be similarly associated with QMCOO and JST-IC as physical frailty. It is expected that the MCR will be used as an initial screening tool to identify signs of risk in community-dwelling older people, as it is easy to diagnose.
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- 2024
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47. Prospective Multicenter Study to Clarify the Frequency of Peristomal Skin Disorders and Appropriate Evaluation Time in Patients with Malignant Rectal Tumors.
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Shiraishi T, Nishizawa Y, Nakajima M, Kado R, Ogawa H, Naomi S, Owada Y, Enomoto T, Yazawa S, Hamahata Y, Isogami Y, Kitagawa K, Sakamoto M, Enomoto H, Egawa A, Kitaguchi D, Hasegawa H, Ikeda K, Tsukada Y, and Ito M
- Abstract
Objective: This study aimed to understand the effectiveness of regular care in reducing the incidence of severe peristomal skin disorders, as well as to identify their risk factors., Summary Background Data: Peristomal skin disorders occur frequently in outpatient settings and require appropriate intervention. It remains, however, to be demonstrated when the need to follow up these patients decreases and whether assessing severity of peristomal skin disorders is useful., Methods: This prospective, multicenter, observational cohort study was conducted in six regional high-volume Japanese hospitals. The primary endpoint of the study was the effectiveness of regular follow-up in reducing the incidence of severe peristomal skin disorders via a scoring system at a defined regular outpatient visit. Propensity score matching was performed to compare a control group and patients with severe peristomal skin disorders., Results: In total, 217 patients between December 2019 and December 2021 were enrolled, and 191 patients were analyzed. Multivariate analysis showed that loop stoma (odds ratio [OR], 5.017; 95% confidence interval [CI], 1.350-18.639; P=0.016) and stoma height of <10 mm (OR, 7.831; 95% CI, 1.760-34.838; P=0.007) were independent risk factors for all peristomal skin disorders. After propensity score matching, the incidence of the disorders was not significantly different between the specified evaluation timing and historical control groups (75.7% vs. 77.2%, P=0.775), and the incidence of the severe disorders based on the ABCD and DET scores (5.9% vs. 19.1%, P<0.001 and 1.5% vs. 29.4%, P<0.001, respectively) was significantly lower in the specified evaluation timing group than in the historical control group., Conclusion: Regular peristomal skin disease follow-up and scoring, as well as appropriate stoma care at the stoma outpatient visit did not change the frequency of peristomal skin disease, but severe peristomal skin disorders were prevented. Additionally, risk factors for peristomal skin disorders were found to be height <10 mm and loop stoma., (Copyright © 2024 Wolters Kluwer Health, Inc. All rights reserved.)
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- 2024
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48. Predictive risk factors for resection surface-related complications after laparoscopic simultaneous resection of primary colorectal tumor and synchronous liver metastases: a single-center retrospective study.
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Une N, Kobayashi S, Kudo M, Sugimoto M, Kitaguchi D, Hasegawa H, Ando K, Ikeda K, Nishizawa Y, Tsukada Y, Ito M, and Gotohda N
- Subjects
- Humans, Retrospective Studies, Male, Female, Middle Aged, Risk Factors, Aged, Colectomy methods, Colectomy adverse effects, Adult, Aged, 80 and over, Laparoscopy adverse effects, Laparoscopy methods, Colorectal Neoplasms pathology, Colorectal Neoplasms surgery, Liver Neoplasms surgery, Liver Neoplasms secondary, Hepatectomy adverse effects, Hepatectomy methods, Postoperative Complications epidemiology, Postoperative Complications etiology
- Abstract
Background: Laparoscopic simultaneous resection (LSR) of primary colorectal tumors and synchronous colorectal liver metastases (sCRLM) has been recently performed. This study aimed to evaluate the postoperative outcomes after LSR and determine the risk factors for resection surface-related complications (RSRC), such as postoperative biliary fistula and liver-transection surface abscess., Methods: Between 2009 and 2022, consecutive patients with sCRLM who underwent LSR were included. We retrospectively analyzed clinicopathological data, including intraoperative factors and postoperative outcomes. The difficulty level of all liver resections was classified according to the IWATE difficulty scoring system (DSS). We then performed univariate and multivariate analyses to identify the risk factors for RSRC., Results: Of the 112 patients, 94 (83.9%) underwent partial hepatectomy and colorectal surgery. The median DSS score was 5 points (1-11), with 12 (10.7%) patients scoring ≥ 7 points. Postoperative complications were observed in 41 (36.6%) patients, of whom 16 (14.3%) experienced severe complications classified as Clavien-Dindo grade IIIa or higher. There was no postoperative mortality. The most common complication was RSRC (19 patients, 17.0%). Multivariate analysis identified American Society of Anesthesiologists (ASA) classification ≥ 3 [odds ratio (OR) 10.3, 95% confidence interval (CI) 1.37-77.8; P = 0.023], DSS score ≥ 7 points (OR 5.08, 95% CI 1.17-20.0; P = 0.030), and right-sided colectomy (OR 4.67, 95% CI 1.46-15.0; P = 0.009) as independent risk factors for RSRC. Postoperative hospital stays were significantly longer for patients with RSRC than for those without RSRC (22 days vs. 11 days; P < 0.001)., Conclusion: Short-term outcomes of LSR for patients with sCRLM were acceptable in an experienced center. RSRC was the most common complication, and high-difficulty hepatectomy, right-sided colectomy, and ASA classification ≥ 3 were independent risk factors for RSRC., (© 2024. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
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- 2024
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49. Preoperative high serum total testosterone levels predict preserved postoperative sexual function in patients after nerve-sparing robot-assisted radical prostatectomy.
- Author
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Saito K, Kohada Y, Hieda K, Shikuma H, Hatayama T, Tasaka R, Miyamoto S, Kobatake K, Sekino Y, Kitano H, Goto K, Ikeda K, Goriki A, and Hinata N
- Subjects
- Humans, Male, Middle Aged, Aged, Prostate surgery, Prostate innervation, Prostate pathology, Retrospective Studies, Postoperative Period, Penile Erection physiology, Prognosis, Treatment Outcome, Prostatectomy adverse effects, Prostatectomy methods, Testosterone blood, Robotic Surgical Procedures adverse effects, Prostatic Neoplasms surgery, Prostatic Neoplasms blood, Organ Sparing Treatments methods, Erectile Dysfunction etiology, Erectile Dysfunction blood, Erectile Dysfunction diagnosis, Preoperative Period
- Abstract
Objective: To assess the association among preoperative total testosterone levels, postoperative sexual function, and prognosis after robot-assisted radical prostatectomy., Methods: Patients who underwent robot-assisted radical prostatectomy in our institution were included in the study. Based on preoperative total testosterone levels, they were divided into low (<3.0 ng/mL) and high (≥3.0 ng/mL) total testosterone groups. Sexual function was evaluated using the International Index of Erectile Function scores, Expanded Prostate Cancer Index Composite scores, and the potency rate from preoperatively to 12 months after surgery. Oncological outcomes were evaluated based on biochemical recurrence., Results: Out of 233 patients included, no significant difference in sexual function was found between the high (n = 183) and the low (n = 50) total testosterone groups at any point before or after surgery. However, in nerve-sparing cases, preservation in postoperative sexual function was observed only in the high total testosterone group (International Index of Erectile Function scores and Expanded Prostate Cancer Index Composite sexual function scores, at any point after surgery, p < 0.05; potency rate, at 3, 6, and 12 months after surgery; p < 0.05). Additionally, the high total testosterone group showed better biochemical recurrence-free survival than the low total testosterone group (p = 0.008)., Conclusions: In the high total testosterone group, preservation in sexual function was observed after the nerve-sparing procedure, while the biochemical recurrence rate was low. Therefore, patients with high levels of total testosterone may be advised to consider nerve-sparing interventions., (© 2024 The Author(s). International Journal of Urology published by John Wiley & Sons Australia, Ltd on behalf of The Japanese Urological Association.)
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- 2024
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50. Generation of an induced pluripotent stem cell line from a late-onset, progressive high frequency hearing loss patient due to mutation in CDH23.
- Author
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Arai D, Takahashi-Shibata M, Ukaji T, Tsutsumi H, Tajima S, Nishio SY, Ishikawa KI, Akamatsu W, Matsumoto F, Ikeda K, Usami SI, and Kamiya K
- Subjects
- Humans, Cell Line, Cell Differentiation, Male, Cadherin Related Proteins, Induced Pluripotent Stem Cells metabolism, Cadherins genetics, Cadherins metabolism, Mutation, Hearing Loss genetics, Hearing Loss pathology
- Abstract
Cadherin 23 (CDH23) is one of the most common genes responsible for hereditary hearing loss; a mutation of CDH23 can cause a wide range of symptoms depending on the variant. In this study, an iPSC line was generated from a patient with late-onset, progressive high frequency hearing loss caused by c.[719C > T];[6085C > T]:p.[P240L];[R2029W] compound heterozygous variants of CDH23. The cells were confirmed to have a normal karyotype, express markers of pluripotency, and have tri-embryonic differentiation potential. This disease-specific iPSC line will further the construction of disease models and the elucidation of the pathophysiology of CDH23 mutations., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved.)
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- 2024
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