1,234 results on '"Nakano, R."'
Search Results
352. P21 Effects of antibiotics in immunomodulatory gene expression of LPS-stimulated human polymorphonuclear leukocytes.
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Ubagai, T., Nagakawa, S., Ueda, T., Nakano, R., Kikuchi, H., and Ono, Y.
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- 2013
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353. A phase I/II study of adoptive immunotherapy using donor liver graft-derived NK cell-enriched immune cells to prevent severe infection after liver transplantation.
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Ohira M, Imaoka Y, Sato K, Imaoka K, Bekki T, Yano T, Nakano R, Sakai H, Kuroda S, Tahara H, Ide K, Kobayashi T, Tanaka Y, Tanaka J, and Ohdan H
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- Humans, Male, Female, Middle Aged, Adult, Aged, Liver immunology, Graft Rejection immunology, Graft Rejection prevention & control, Tissue Donors, Postoperative Complications etiology, Postoperative Complications immunology, Postoperative Complications prevention & control, Killer Cells, Natural immunology, Killer Cells, Natural transplantation, Liver Transplantation adverse effects, Liver Transplantation methods, Immunotherapy, Adoptive methods, Immunotherapy, Adoptive adverse effects
- Abstract
Bloodstream infections (BSIs) are significant postoperative complications associated with high mortality rates after liver transplantation (LT). Natural killer (NK) cells, which are key components of the innate immune system, have demonstrated potential to combat both infections and cancer. The use of activated NK cells to mitigate post-LT infections, particularly BSIs, has attracted considerable interest. We conducted a single-arm Phase I/II clinical trial to evaluate the safety and efficacy of transfusing donor liver-derived NK cells into LT recipients. Patients were administered a single infusion of these NK cells three days post-LT. The primary endpoint was BSI incidence. This study was terminated in 19 patients because of the high incidence of BSIs. Of the 19 patients receiving immunotherapy, six (31.5%) developed BSIs within one month of LT. No adverse events were directly related to NK cell infusion. Acute rejection was noted in seven patients (36.8%). After infusion, NK cell activity in the recipient's peripheral blood remained stable. In conclusion, this clinical trial did not reach the primary endpoint. This could be attributed to a significant percentage of patients presenting with high immunological risk. Nonetheless, the infusion procedure demonstrated a favorable safety profile without serious adverse events., Competing Interests: NO authors have competing interests., (Copyright: © 2025 Ohira et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
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- 2025
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354. Association between the ABCC11 gene polymorphism-determined earwax properties and external auditory canal microbiota in healthy adults.
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Amari Y, Hosonuma M, Mizukami T, Isobe J, Azetsu Y, Funayama E, Maruyama Y, Tsurui T, Tajima K, Sasaki A, Yamazaki Y, Nakano R, Sano Y, Ishida A, Nakanishi T, Mochizuki S, Yoshizawa Y, Kumagai S, Yasuhara S, Ryu K, Oguchi T, Kuramasu A, Yoshimura K, Sambe T, Kobayashi S, and Uchida N
- Abstract
The concept of genome-microbiome interactions, in which the microenvironment determined by host genetic polymorphisms regulates the local microbiota, is important in the pathogenesis of human disease. In otolaryngology, the resident bacterial microbiota is reportedly altered in non-infectious ear diseases, such as otitis media pearls and exudative otitis media. We hypothesized that a single-nucleotide polymorphism in the ATP-binding cassette sub-family C member 11 ( ABCC11 ) gene, which determines earwax properties, regulates the ear canal microbiota. We analyzed ABCC11 gene polymorphisms and ear canal microbiota in healthy individuals to understand the relationship between genome-microbiome interactions in the ear canal. The study included 21 subjects who were divided into two groups: 538GA (9) and 538AA (12). Staphylococcus auricularis and Corynebacterium spp. were observed in the 538GA group, whereas Methylocella spp. was observed in the 538AA group. PICRUSt analysis revealed significant enrichment of certain pathways, such as superpathway of N-acetylglucosamine, N-acetylmannosamine and N-acetylneuraminate degradation, chlorosalicylate degradation, mycothiol biosynthesis, and enterobactin biosynthesis in the GA group, whereas allantoin degradation IV (anaerobic), nitrifier denitrification, starch degradation III, L-valine degradation I, and nicotinate degradation I were significantly enriched in the AA group. The ABCC11 gene polymorphism regulates the composition of the ear canal microbiota and its metabolic pathways. This study revealed a genome-microbiome interaction within the resident microbiota of the external auditory canal that may help to elucidate the pathogenesis of ear diseases and develop novel therapies., Importance: The ABCC11 gene polymorphism, which determines earwax characteristics, regulates the composition of the ear canal microbiota and its metabolic pathways. We determined the presence of genome-microbiome interactions in the resident microbiota of the ear canal. Future studies should focus on ABCC11 gene polymorphisms to elucidate the pathogenesis of ear diseases and develop therapeutic methods.
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- 2025
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355. What we know and don't know about great ape cultural communication in the wild.
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Kalan AK, Nakano R, and Warshawski L
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- Animals, Culture, Gestures, Vocalization, Animal, Social Behavior, Hominidae psychology, Animal Communication
- Abstract
Following the first descriptions of culture in primates, widespread agreement has developed that the term can be applied to nonhumans as group-specific, socially learned behaviors. While behaviors such as those involving extractive tool use have been researched intensively, we propose that behaviors that are more subtle, less likely to be ecologically constrained, and more likely to be socially shaped, such as cultural forms of communication, provide compelling evidence of culture in nonhuman primates. Additionally, cultural forms of communication can provide novel insights into animal cognition such as the capacity for conformity, conventionalized meanings, arbitrariness in signal forms, and even symbolism. In this paper we focus on evidence from studies conducted on wild great apes. First, we provide a thorough review of what exactly we do know, and by extension don't know, about great ape cultural communication. We argue that detailed research on both vocal and gestural communication in wild great apes shows a more nuanced and variable repertoire than once assumed, with increasing support for group-specific variation. Second, we discuss the relevance of great ape cultural communication and its potential for illustrating evolutionary continuity for human-like cultural attributes, namely cumulative culture and symbolism. In sum, a concerted effort to examine cultural forms of communication in great apes could reveal novel evidence for cultural capacities that have thus far been heavily debated in the literature and can simultaneously contribute to an improved understanding of the complex minds of our closest living relatives., (© 2023 The Authors. American Journal of Primatology published by Wiley Periodicals LLC.)
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- 2025
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356. Exercise Preconditioning of the Donor Liver Decreases Cold Ischemia/Reperfusion Injury in a Mouse Model.
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Yazdani HO, Yang R, Haykal T, Tohme C, Kaltenmeier C, Wang R, Nakano R, Nigmet Y, Gambella A, Loughran P, Hughes CB, Geller DA, and Tohme S
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- Animals, Male, Mice, Physical Conditioning, Animal, Apoptosis, Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha metabolism, Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha genetics, Reactive Oxygen Species metabolism, Neutrophil Infiltration, Extracellular Traps metabolism, Reperfusion Injury prevention & control, Reperfusion Injury etiology, Reperfusion Injury pathology, Liver Transplantation adverse effects, Liver pathology, Liver metabolism, Mice, Inbred C57BL, Disease Models, Animal, Cold Ischemia adverse effects
- Abstract
Background: Liver transplantation stands as the primary treatment for end-stage liver disease, with demand surging in recent decades because of expanded indications. However, hepatic ischemia/reperfusion injury can lead to liver transplant failure in both deceased donor and living donor transplantation. This study explored whether preconditioning donor livers through exercise training (ExT) could mitigate cold ischemic injury posttransplantation., Methods: Donor C57BL/6 mice underwent ExT via treadmill running or remained sedentary. After 4 wk, the donor liver underwent cold storage and subsequent orthotopic liver transplantation or ex vivo warm reperfusion., Results: Donor liver from mice subjected to ExT showed significantly decreased hepatic injury on reperfusion. Tissue histology revealed decreased sinusoidal congestion, vacuolization, and hepatocellular necrosis in livers from ExT mice, and immunofluorescence staining further revealed a decreased number of apoptotic cells in ExT grafts. Livers from ExT donors expressed decreased intragraft inflammatory cytokines cascade, decreased neutrophil infiltration and neutrophil extracellular traps, and increased M2 phenotype of recipient macrophages compared with grafts from sedentary mice. After cold storage, liver grafts from ExT donors showed decreased accumulation of reactive oxygen species and decreased levels of cytochrome c and high mobility group box 1 released in the liver effluent. In addition, ExT grafts showed upregulated peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC-1α) and higher levels of mitochondrial content. Similar effects of decreased hepatic injury were observed in wild-type mice when pretreated with a PGC-1α stimulator ZLN005 instead of ExT., Conclusions: These findings suggest that augmenting hepatocytic mitochondrial content through donor exercise or PGC-1α stimulation may offer therapeutic avenues to mitigate postreperfusion inflammation and improve transplant outcomes., Competing Interests: The authors declare no conflicts of interest., (Copyright © 2024 Wolters Kluwer Health, Inc. All rights reserved.)
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- 2025
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357. The haplotype-phased genome assembly facilitated the deciphering of the bud dormancy-related QTLs in Prunus mume.
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Hsiang TF, Yamane H, Lin YJ, Sugimori M, Nishiyama S, Nagasaka K, Nakano R, and Tao R
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- Chromosome Mapping, Chromosomes, Plant genetics, Quantitative Trait Loci, Haplotypes, Prunus genetics, Prunus growth & development, Genome, Plant, Plant Dormancy genetics
- Abstract
Bud dormancy is a vital physiological process in woody perennials, facilitating their adaptation to seasonal environmental changes. Satisfying genotype-specific chilling requirements (CR) and heat requirements (HR) through exposure to specific chilling and warm temperatures is essential for dormancy release and the subsequent resumption of growth. The genetic mechanisms regulating bud dormancy traits in Prunus mume remain unclear. In this study, we first assembled the genome of 'Nanko', the leading P. mume cultivar in Japan, in a haplotype-resolved manner. Using an F1 segregating population from a cross between 'Nanko' (high-chill) and 'SC' (low-chill), a cultivar adapted to subtropical conditions, we identified quantitative trait loci (QTLs) for vegetative bud dormancy traits on chromosome 4 (LG4 QTLs) in the 'Nanko' genome and for CR and HR on chromosome 7 (LG7 QTL) in the 'SC' genome. A notable 5.6 Mb chromosome inversion was overlapped with LG4 QTL interval in one of the 'Nanko' haplotypes. We also identified candidate genes based on haplotyping, differential expression between the parents or the presence of trait-correlated variants in coding regions. Notably, genes such as PmuMAIN, PmuNAC2, PmuDOG1, PmuSUI1, PmuATG8CL, PmubZIP44, and PmuSAUR50 were identified. This study provides valuable insights into the genetic regulation of vegetative bud dormancy in Prunus species., (© The Author(s) 2024. Published by Oxford University Press on behalf of Kazusa DNA Research Institute.)
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- 2024
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358. Oral administration of Bifidobacterium longum and Bifidobacterium infantis ameliorates cefcapene pivoxil-induced attenuation of anti-programmed cell death protein-1 antibody action in mice.
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Funayama E, Hosonuma M, Tajima K, Isobe J, Baba Y, Murayama M, Narikawa Y, Toyoda H, Tsurui T, Maruyama Y, Sasaki A, Amari Y, Yamazaki Y, Nakashima R, Uchiyama J, Nakano R, Shida M, Sasaki A, Udaka Y, Oguchi T, Sambe T, Kobayashi S, Tsuji M, Kiuchi Y, Kim YG, Wada S, Tsunoda T, Akiyama M, Nobe K, Kuramasu A, and Yoshimura K
- Abstract
Gut bacteria play pivotal roles in the antitumor effects of immune checkpoint inhibitors (ICIs). However, antimicrobial therapy, often necessary for infections in cancer patients, can reduce the efficacy of ICIs. The potential of probiotics to restore ICI efficacy remains uncertain. This study evaluated the effects of Bifidobacterium longum and Bifidobacterium infantis (BLBI) in a CT-26 subcutaneous tumor mouse model treated with anti-programmed cell death protein 1 antibody (αPD-1) and cefcapene pivoxil (CFPN-PI). BALB/c mice received daily oral gavage of CFPN-PI for 5 days before tumor inoculation, followed by weekly αPD-1 administration and tumor growth monitoring. BLBI was administered via ad libitum feeding, mixed in powdered feed. Gut microbiota composition and fecal short-chain fatty acid concentrations were assessed, along with gene expression and immune cell populations in the tumor microenvironment, using quantitative RT-PCR and flow cytometry, respectively. CFPN-PI alone increased tumor growth and attenuated the antitumor effect of αPD-1. In contrast, BLBI inhibited CFPN-PI-induced tumor growth and improved the efficacy of αPD-1. Probiotic treatment increased the stool propionic acid concentration and the number of tumor-infiltrating conventional type 1 dendritic cells. Relative decreases in Bacteroides and Lachnospiraceae _NK4A136_group species and relative increases in Muribaculaceae and Unclassified_f_Oscillospiraceae species correlated with an improved αPD-1 response. These results suggest that probiotic administration may be a new therapeutic strategy to rescue the attenuated efficacy of ICIs in patients with cancer who require antimicrobial therapy., 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 Masson SAS.. All rights reserved.)
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- 2024
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359. Association of pancreatic atrophy patterns with intraductal extension of early pancreatic ductal adenocarcinoma: a multicenter retrospective study.
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Miki M, Masuda A, Takenaka M, Shiomi H, Iemoto T, Tsumura H, Tsujimae M, Toyama H, Sofue K, Ueshima E, Omoto S, Yoshida A, Fukunaga T, Tanaka H, Nakano R, Ota S, Kobayashi T, Sakai A, Kanzawa M, Itoh T, and Kodama Y
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- Humans, Male, Female, Retrospective Studies, Aged, Middle Aged, Pancreas pathology, Pancreas diagnostic imaging, Tomography, X-Ray Computed, Pancreatic Ducts pathology, Pancreatic Ducts diagnostic imaging, Aged, 80 and over, Neoplasm Staging, Carcinoma, Pancreatic Ductal pathology, Carcinoma, Pancreatic Ductal surgery, Pancreatic Neoplasms pathology, Pancreatic Neoplasms surgery, Atrophy
- Abstract
Background: Focal pancreatic parenchymal atrophy (FPPA) and upstream pancreatic atrophy (UPA) may indicate the presence of early pancreatic cancer. In early pancreatic cancer, the tumor occasionally spreads laterally along the main pancreatic duct, presenting challenges in determining the extent of surgical resection. This study aimed to investigate the association of pancreatic atrophy pattern and intraductal cancer extension., Methods: Thirty-two patients with early-stage pancreatic cancer who underwent surgery at five participating centers were enrolled. Pancreatic atrophy was defined as the narrowing of parenchyma compared to the surrounding parenchyma and was classified as either FPPA (partial atrophy surrounding the pancreatic duct stenosis) or UPA (global atrophy caudal to the site of duct stenosis). Intraductal cancer extension was defined as an extension exceeding 10 mm., Results: Preoperative computed tomography revealed FPPA, UPA, and no parenchymal atrophy in 13, 13, and 6 patients. Cases with FPPA or UPA showed significantly longer cancer extensions than those without atrophy (P = 0.005 and P = 0.03, respectively). Intraductal cancer extension was present in all but one case of FPPA. 69% (9/13) of the cases with UPA showed intraductal cancer extension, whereas cases without atrophy showed no intraductal cancer extension. Importantly, two patients with FPPA or UPA showed positive resection margins during surgery and three patients with FPPA or UPA showed recurrence in the remnant pancreas., Conclusions: The presence of FPPA and UPA indicates lateral cancer extension in early-stage pancreatic cancer. Preoperative assessment of the pancreatic parenchyma may provide valuable insights for determining the extent of surgical resection., (© 2024. The Author(s).)
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- 2024
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360. Association of PIRCHE-II score with anti-donor T-cell response and risk of de novo donor-specific antibody production in kidney transplant recipients.
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Yamane H, Ide K, Tanaka Y, Ohira M, Tahara H, Shimizu S, Sakai H, Nakano R, and Ohdan H
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- Humans, Male, Female, Middle Aged, Adult, Retrospective Studies, Graft Rejection immunology, Transplant Recipients, Living Donors, HLA-DQ Antigens immunology, HLA Antigens immunology, Antibody Formation, Epitopes immunology, Kidney Transplantation, T-Lymphocytes immunology, Isoantibodies immunology
- Abstract
Background: De novo donor-specific antibodies (dnDSAs) affect long-term outcomes of kidney transplantation (KT). A higher Predicted Indirectly ReCognizable Human Leukocyte Antigen (HLA) Epitopes (PIRCHE-II) score correlates with various clinical outcomes, including dnDSA formation. However, a detailed analysis of the relationship between the PIRCHE-II score and anti-donor T-cell response is lacking. Therefore, this study investigated the relationship between PIRCHE-II scores associated with dnDSA formation and mixed lymphocyte reaction results of anti-donor T-cell response., Methods: Data of 105 adult living-donor KT recipients were retrospectively assessed., Results: Of the 105 patients, 13.3 % developed dnDSAs during the observation period. The PIRCHE-II score at the HLA-DQ locus (PIRCHE-DQ) was significantly higher in patients with dnDSA formation than in those without. The incidence of dnDSA formation was significantly higher in the PIRCHE-DQ ≥ 77 group than in the PIRCHE-DQ < 77 group. The proportion of patients with increased anti-donor T-cell response was significantly higher in the PIRCHE-DQ ≥ 77 group than in the PIRCHE-DQ < 77 group before KT and at 4 and 5 years after KT., Conclusions: PIRCHE-DQ may predict dnDSA formation and anti-donor T-cell response. Reducing the immunosuppressive drug dose in cases of high PIRCHE-DQ might not be prudent., Competing Interests: Declaration of competing interest None., (Copyright © 2024 Elsevier B.V. All rights reserved.)
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- 2024
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361. Molecular tag for promoting N -glycan maturation in the cargo receptor-mediated secretion pathway.
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Yagi H, Yamada R, Saito T, Honda R, Nakano R, Inutsuka K, Tateo S, Kusano H, Nishimura K, Yanaka S, Tojima T, Nakano A, Furukawa JI, Yagi-Utsumi M, Adachi S, and Kato K
- Abstract
MCFD2 and ERGIC-53 form a cargo receptor complex that plays a crucial role in transporting specific glycoproteins, including blood coagulation factor VIII, from the endoplasmic reticulum to the Golgi apparatus. We have demonstrated that MCFD2 recognizes a 10-amino-acid sequence in factor VIII, thereby facilitating its efficient transport. Moreover, the secretion of biopharmaceutical recombinant glycoproteins, such as erythropoietin, can be enhanced by tagging them with this sequence, which we have termed the "passport sequence" (PS). Here, we found that the PS promotes the galactosylation and sialylation of N -glycans on glycoproteins. Furthermore, we discovered that glycoproteins tagged with the PS follow a unique route in the Golgi, where they encounter NUCB1. NUCB1 also recognizes the PS and mediates its interaction with the galactosylation enzyme B4GALT1. These findings offer a promising strategy for controlling the glycosylation of recombinant glycoproteins of biopharmaceutical interest., Competing Interests: The authors declare no competing interests., (© 2024 The Authors.)
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- 2024
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362. Author Correction: Evidence for multi-fragmentation and mass shedding of boulders on rubble-pile binary asteroid system (65803) Didymos.
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Pajola M, Tusberti F, Lucchetti A, Barnouin O, Cambioni S, Ernst CM, Dotto E, Daly RT, Poggiali G, Hirabayashi M, Nakano R, Epifani EM, Chabot NL, Della Corte V, Rivkin A, Agrusa H, Zhang Y, Penasa L, Ballouz RL, Ivanovski S, Murdoch N, Rossi A, Robin C, Ieva S, Vincent JB, Ferrari F, Raducan SD, Campo-Bagatin A, Parro L, Benavidez P, Tancredi G, Karatekin Ö, Trigo-Rodriguez JM, Sunshine J, Farnham T, Asphaug E, Deshapriya JDP, Hasselmann PHA, Beccarelli J, Schwartz SR, Abell P, Michel P, Cheng A, Brucato JR, Zinzi A, Amoroso M, Pirrotta S, Impresario G, Bertini I, Capannolo A, Caporali S, Ceresoli M, Cremonese G, Dall'Ora M, Gai I, Casajus LG, Gramigna E, Manghi RL, Lavagna M, Lombardo M, Modenini D, Palumbo P, Perna D, Tortora P, Zannoni M, and Zanotti G
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- 2024
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363. Near-infrared in vivo imaging system for dynamic visualization of lung-colonizing bacteria in mouse pneumonia.
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Yamaguchi D, Kamoshida G, Kawakubo S, Azuma S, Tsuji T, Kitada N, Saito-Moriya R, Yamada N, Tanaka R, Okuda A, Ueyama K, Isaka S, Tomita M, Nakano R, Morita Y, Yano H, Maki SA, Yahiro K, and Kato S
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- Animals, Mice, Disease Models, Animal, Luminescent Measurements methods, Acinetobacter Infections microbiology, Acinetobacter Infections diagnostic imaging, Infrared Rays, Female, Spectroscopy, Near-Infrared methods, Klebsiella pneumoniae genetics, Lung microbiology, Lung diagnostic imaging, Pneumonia, Bacterial microbiology, Pneumonia, Bacterial diagnostic imaging, Acinetobacter baumannii
- Abstract
In vivo imaging of bacterial infection models enables noninvasive and temporal analysis of individuals, enhancing our understanding of infectious disease pathogenesis. Conventional in vivo imaging methods for bacterial infection models involve the insertion of the bacterial luciferase LuxCDABE into the bacterial genome, followed by imaging using an expensive ultrasensitive charge-coupled device (CCD) camera. However, issues such as limited light penetration into the body and lack of versatility have been encountered. We focused on near-infrared (NIR) light, which penetrates the body effectively, and attempted to establish an in vivo imaging method to evaluate the number of lung-colonizing bacteria during the course of bacterial pneumonia. This was achieved by employing a novel versatile system that combines plasmid-expressing firefly luciferase bacteria, NIR substrate, and an inexpensive, scientific complementary metal-oxide semiconductor (sCMOS) camera. The D-luciferin derivative "TokeOni," capable of emitting NIR bioluminescence, was utilized in a mouse lung infection model of Acinetobacter baumannii , an opportunistic pathogen that causes pneumonia and is a concern due to drug resistance. TokeOni exhibited the highest sensitivity in detecting bacteria colonizing the mouse lungs compared with other detection systems such as LuxCDABE, enabling the monitoring of changes in bacterial numbers over time and the assessment of antimicrobial agent efficacy. Additionally, it was effective in detecting A. baumannii clinical isolates and Klebsiella pneumoniae . The results of this study are expected to be used in the analysis of animal models of infectious diseases for assessing the efficacy of therapeutic agents and understanding disease pathogenesis., Importance: Conventional animal models of infectious diseases have traditionally relied upon average assessments involving numerous individuals, meaning they do not directly reflect changes in the pathology of an individual. Moreover, in recent years, ethical concerns have resulted in the demand to reduce the number of animals used in such models. Although in vivo imaging offers an effective approach for longitudinally evaluating the pathogenesis of infectious diseases in individual animals, a standardized method has not yet been established. To our knowledge, this study is the first to develop a highly versatile in vivo pulmonary bacterial quantification system utilizing near-infrared luminescence, plasmid-mediated expression of firefly luciferase in bacteria, and a scientific complementary metal-oxide semiconductor camera. Our research holds promise as a useful tool for assessing the efficacy of therapeutic drugs and pathogenesis of infectious diseases., Competing Interests: The authors declare no conflict of interest.
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- 2024
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364. Anti-inflammatory Effects of Bacteroidota Strains Derived From Outstanding Donors of Fecal Microbiota Transplantation for the Treatment of Ulcerative Colitis.
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Ishikawa D, Zhang X, Nomura K, Shibuya T, Hojo M, Yamashita M, Koizumi S, Yamazaki F, Iwamoto S, Saito M, Kunigo K, Nakano R, Honma N, Urakawa I, and Nagahara A
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- Animals, Mice, Humans, Disease Models, Animal, Male, Bacteroidetes, Female, Gastrointestinal Microbiome, Mice, Inbred C57BL, RNA, Ribosomal, 16S genetics, Dextran Sulfate, Anti-Inflammatory Agents, Fecal Microbiota Transplantation, Colitis, Ulcerative microbiology, Colitis, Ulcerative therapy, Colitis, Ulcerative immunology, Feces microbiology, Interleukin-10 metabolism
- Abstract
Background: The proportion of certain Bacteroidota species decreased in patients with ulcerative colitis, and the recovery of Bacteroidota is associated with the efficacy of fecal microbiota transplantation therapy. We hypothesized that certain Bacteroidota may advance ulcerative colitis treatment. Accordingly, we aimed to evaluate the anti-inflammatory effects of Bacteroidota strains isolated from donors., Methods: Donors with proven efficacy of fecal microbiota transplantation for ulcerative colitis were selected, and Bacteroidota strains were isolated from their stools. The immune function of Bacteroidota isolates was evaluated through in vitro and in vivo studies., Results: Twenty-four Bacteroidota strains were isolated and identified. Using an in vitro interleukin (IL)-10 induction assay, we identified 4 Bacteroidota strains with remarkable IL-10-induction activity. Of these, an Alistipes putredinis strain exhibited anti-inflammatory effects in a mouse model of colitis induced by sodium dextran sulfate and oxazolone. However, 16S rRNA gene-based sequencing analysis of A. putredinis cultures in the in vivo study revealed unexpected Veillonella strain contamination. A second in vitro study confirmed that the coculture exhibited an even more potent IL-10-inducing activity. Furthermore, the production of A. putredinis-induced IL-10 was likely mediated via toll-like receptor 2 signaling., Conclusions: This study demonstrated that A. putredinis, a representative Bacteroidota species, exhibits anti-inflammatory effects in vivo and in vitro; however, the effects of other Bacteroidota species remain unexplored. Our fecal microbiota transplantation-based reverse translation approach using promising bacterial species may represent a breakthrough in microbiome drug development for controlling dysbiosis during ulcerative colitis., (© The Author(s) 2024. Published by Oxford University Press on behalf of Crohn’s & Colitis Foundation. All rights reserved. For commercial re-use, please contact reprints@oup.com for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site—for further information please contact journals.permissions@oup.com.)
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- 2024
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365. Sarcopenia's Impact Defined by Grip Strength and Muscle Mass on Post-hepatectomy Outcomes: A Multicenter Analysis.
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Fukuhara S, Kobayashi T, Hamaoka M, Naruhiko H, Oishi K, Namba Y, Oshita KO, Matsubara K, Takei D, Nakano R, Sakai H, Kuroda S, Tahara H, Ohira M, and Ohdan H
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- Humans, Male, Female, Aged, Middle Aged, Risk Factors, Retrospective Studies, Treatment Outcome, Sarcopenia physiopathology, Sarcopenia etiology, Hepatectomy adverse effects, Postoperative Complications etiology, Postoperative Complications epidemiology, Muscle, Skeletal physiopathology, Muscle, Skeletal pathology, Hand Strength, Liver Neoplasms surgery, Liver Neoplasms pathology, Carcinoma, Hepatocellular surgery, Carcinoma, Hepatocellular pathology, Carcinoma, Hepatocellular complications
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Background/aim: Sarcopenia is diagnosed based on grip strength and skeletal muscle mass. Although decreased skeletal muscle mass has been reported to be associated with poor outcomes after hepatectomy, a few studies have included data on grip strength in hepatectomy candidates. This multicenter study investigated the clinical factors and postoperative complications associated with sarcopenia by assessing the grip strength and skeletal muscle mass in patients undergoing hepatectomy for hepatocellular carcinoma (HCC)., Patients and Methods: Data from patients who underwent hepatectomy for HCC between January 2020 and March 2022 were retrospectively collected from multi-institutional databases. Sarcopenia was defined as reduced grip strength and skeletal muscle mass. The patients were categorized into the sarcopenia and non-sarcopenia groups, and baseline characteristics and short term outcomes were compared between the two groups., Results: Overall, 253 patients were included, among which 36 (14.2%) had sarcopenia. The sarcopenia group was significantly associated with older age, low body mass index, comorbid heart or chronic pulmonary disease, cerebrovascular accident history, and overall and major postoperative complications compared to the non-sarcopenia group. Among major postoperative complications [Clavien-Dindo classification (CDC) ≥III], the incidence of bile leakage and intra-abdominal abscess were higher in the sarcopenia group than in the non-sarcopenia group. Multivariate analysis revealed that sarcopenia was an independent risk factor for overall and major postoperative complications (CDC ≥III)., Conclusion: Sarcopenia, defined by grip strength and skeletal muscle mass, is a predictor of overall and major complications after hepatectomy for HCC., (Copyright © 2024, International Institute of Anticancer Research (Dr. George J. Delinasios), All rights reserved.)
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- 2024
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366. Transverse colectomy using the RoboLap cooperative technique for mid-transverse colon cancer - A Video Vignette.
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Yamamoto T, Fukuda M, Nakano R, Okuchi Y, Taura K, and Terajima H
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- 2024
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367. Long-term Effect of the HCV Elimination With Direct-acting Antivirals on the Progression of Gastroesophageal Varices.
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Yuri Y, Nishimura T, Ikeda N, Takashima T, Aizawa N, Kimura T, Yoshihara K, Yoshioka R, Kawata S, Kawase Y, Nakano R, Shiomi H, Fukunishi S, Shinzaki S, and Enomoto H
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- Humans, Male, Female, Middle Aged, Aged, Gastrointestinal Hemorrhage etiology, Retrospective Studies, Treatment Outcome, Liver Cirrhosis drug therapy, Liver Cirrhosis virology, Liver Cirrhosis complications, Hepatitis C, Chronic drug therapy, Hepatitis C, Chronic complications, Hepatitis C, Chronic virology, Hepatitis C drug therapy, Hepatitis C complications, Hepatitis C virology, Adult, Esophageal and Gastric Varices etiology, Antiviral Agents therapeutic use, Disease Progression, Hepacivirus drug effects, Sustained Virologic Response
- Abstract
Background/aim: Gastroesophageal varices (GEV) hemorrhage is a serious complication that can lead to unfavorable outcomes in cirrhotic patients. However, the clinical impact of HCV elimination [sustained viral response (SVR)] by direct-acting antivirals (DAAs), particularly on the long-term effects on the endoscopic findings of GEV have not been sufficiently evaluated. This study aimed to investigate whether HCV elimination with DAA treatment suppresses the progression of GEV., Patients and Methods: The clinical courses of the endoscopic findings of GEV were retrospectively compared between patients without an SVR (non-SVR group: n=71) and those who achieved an SVR with DAAs (DAA-SVR group: n=38)., Results: At 1, 3, 5, and 7 years, the cumulative GEV progression rates were 8.7%, 32.8%, 45.6%, and 66.2%, respectively. At 3 years, the cumulative GEV progression rate in the DAA-SVR group was similar to that in the non-SVR group. Beyond 3 years, cases with GEV progression were found in the non-SVR group, but not in the DAA-SVR group. At 7 years, the cumulative GEV progression rate in the DAA-SVR group was significantly lower than that in the non-SVR group (p<0.05, log-rank test). Variceal hemorrhage occurred in eight patients in the non-SVR group, while no bleeding events were observed in the DAA-SVR group during the observational period [8/71 (11.3%) vs. 0/38 (0.0%), p<0.05]., Conclusion: DAA treatment suppresses the progression of GEV over the long term., (Copyright © 2024, International Institute of Anticancer Research (Dr. George J. Delinasios), All rights reserved.)
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- 2024
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368. Polymorphisms in genes involved in regulating follicular helper T cell differentiation predict de novo donor-specific antibody formation after liver transplantation.
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Ono K, Ide K, Nakano R, Sakai H, Shimizu S, Tahara H, Ohira M, Tanaka Y, and Ohdan H
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- Humans, Male, Female, Middle Aged, Adult, Interleukins genetics, Antibody Formation genetics, Antibody Formation immunology, Graft Rejection genetics, Graft Rejection immunology, Proto-Oncogene Proteins c-bcl-6 genetics, Isoantibodies immunology, Aged, Living Donors, T-Lymphocytes, Helper-Inducer immunology, Interleukin-21, Liver Transplantation, Polymorphism, Single Nucleotide, T Follicular Helper Cells immunology, Cell Differentiation genetics
- Abstract
Background: De novo donor-specific antibodies (dnDSAs) significantly affect the long-term outcomes of liver transplantation (LT), highlighting the importance of risk prediction. Follicular helper T (Tfh) cells have been implicated in dnDSA formation after transplantation. Considering the influence of immune response gene polymorphisms on transplantation outcomes, we investigated the association between polymorphisms in Tfh cell-related genes and dnDSA formation after LT., Methods: Fifty-three living-donor LT patients were included in this study. Single nucleotide polymorphisms (SNPs) were identified in six Tfh cell-related genes crucial for differentiation and maturation (BCL6, CXCR5, CXCL13, ICOS, CD40L, and IL-21); their association with the development of dnDSA after LT was evaluated., Results: Among the 53 recipients, 9 developed dnDSAs. BCL6 and IL-21 SNPs showed potential associations with dnDSA formation, enabling risk stratification., Conclusions: Variations in Tfh cell-related genes may predispose individuals to dnDSA formation after LT, emphasizing the importance of genetic factors for predicting post-transplant complications., 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 American Society for Histocompatibility and Immunogenetics. Published by Elsevier Inc. All rights reserved.)
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- 2024
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369. Intracellular cAMP signaling-induced Ca 2+ influx mediated by calcium homeostasis modulator 1 (CALHM1) in human odontoblasts.
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Kimura M, Nomura S, Ouchi T, Kurashima R, Nakano R, Sekiya H, Kuroda H, Kono K, and Shibukawa Y
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- Humans, Cells, Cultured, Odontoblasts metabolism, Cyclic AMP metabolism, Calcium metabolism, Calcium Signaling physiology, Colforsin pharmacology
- Abstract
In odontoblasts, intracellular Ca
2+ signaling plays key roles in reactionary dentin formation and generation of dentinal pain. Odontoblasts also express several Gs protein-coupled receptors that promote production of cyclic AMP (cAMP). However, the crosstalk between intracellular cAMP and Ca2+ signaling, as well as the role of cAMP in the cellular functions of odontoblasts, remains unclear. In this study, we measured intracellular cAMP levels and intracellular free Ca2+ concentration ([Ca2+ ]i ). We also investigated the effect of intracellular cAMP on mineralization by the odontoblasts. In the presence of extracellular Ca2+ , the application of forskolin (adenylyl cyclase activator) or isoproterenol (Gs protein-coupled beta-2 adrenergic receptor agonist) increased intracellular cAMP levels and [Ca2+ ]i in odontoblasts. The [Ca2+ ]i increases could not be observed by removing extracellular Ca2+ , indicating that cAMP is capable to activate Ca2+ entry. Forskolin-induced [Ca2+ ]i increase was inhibited by a protein kinase A inhibitor in odontoblasts. The [Ca2+ ]i increase was sensitive to Gd3+ , 2APB, or Zn2+ but not verapamil, ML218, or La3+ . In immunofluorescence analyses, odontoblasts were immunopositive for calcium homeostasis modulator 1 (CALHM1), which was found close to ionotropic ATP receptor subtype, P2X3 receptors. When CALHM1 was knocked down, forskolin-induced [Ca2+ ]i increase was suppressed. Alizarin red and von Kossa staining showed that forskolin decreased mineralization. These findings suggest that activation of adenylyl cyclase elicited increases in the intracellular cAMP level and Ca2+ influx via protein kinase A activation in odontoblasts. Subsequent cAMP-dependent Ca2+ influx was mediated by CALHM1 in odontoblasts. In addition, the intracellular cAMP signaling pathway in odontoblasts negatively mediated dentinogenesis., Competing Interests: Declarations. Ethical approval: Not applicable. Competing interests: The authors declare no competing interests., (© 2024. The Author(s).)- Published
- 2025
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370. Molecular epidemiology and clinical characteristics of Staphylococcus aureus bacteremia in Japanese adults.
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Tsubaki K, Kasahara K, Asada T, Nakano R, Nakano A, Mikasa K, Kawaguchi M, and Yano H
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- Humans, Male, Japan epidemiology, Female, Aged, Middle Aged, Adult, Aged, 80 and over, East Asian People, Bacteremia microbiology, Bacteremia epidemiology, Bacteremia mortality, Staphylococcal Infections epidemiology, Staphylococcal Infections microbiology, Multilocus Sequence Typing, Methicillin-Resistant Staphylococcus aureus genetics, Methicillin-Resistant Staphylococcus aureus isolation & purification, Molecular Epidemiology, Staphylococcus aureus genetics, Staphylococcus aureus drug effects, Staphylococcus aureus isolation & purification, Anti-Bacterial Agents therapeutic use, Anti-Bacterial Agents pharmacology, Microbial Sensitivity Tests
- Abstract
Introduction: Staphylococcus aureus bacteremia (SAB), especially when caused by methicillin-resistant S. aureus (MRSA), is of considerable clinical importance. In recent years, the proportion of MRSA among S. aureus has decreased, and a relative increase in the proportion of methicillin-susceptible S. aureus (MSSA) has been observed. It is therefore necessary to consider both MRSA and MSSA when assessing the microbiological and clinical significance of SAB., Materials and Methods: We included SAB cases from the Nara Medical University Hospital between January 2015 and February 2017. We performed drug susceptibility testing, toxicity gene analysis, multilocus sequence typing (MLST), and polymerase chain reaction-based open reading frame typing (POT) of stored strains to integrate clinical and bacteriological characteristics., Results: There were 90 cases during the experimental period (42 MRSA and 48 MSSA), with 30-day mortality rates of 19 % for MRSA and 10.4 % for MSSA. Deaths were more frequently complicated by septic shock and disseminated intravascular coagulation. MLST studies showed that ST8, ST764, ST1, and ST15 were prevalent in the MRSA group, whereas ST5, ST188, and ST12 were prevalent in MSSA. Infective endocarditis cases had a long time from onset to the initiation of effective antimicrobials and were all MSSA. MLST and POT results correlated well, and POT appeared to have better discriminatory power., Conclusions: The severity and mortality of SAB, along with the microbiological characteristics of causative isolates, vary by location and time. Continued studies integrating clinical and microbiological investigations are thus needed., Competing Interests: Declarations of interest None., (Copyright © 2024 Japanese Society of Chemotherapy, Japanese Association for Infectious Diseases, and Japanese Society for Infection Prevention and Control. Published by Elsevier Ltd. All rights reserved.)
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- 2025
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371. Feasibility of Double-Deployment Small-Diameter Covered Metallic Stent for Malignant Distal Biliary Obstruction (with Video).
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Nakano R, Shiomi H, Okamoto M, Kawase Y, Yoshihara K, Yoshioka R, Kawata S, Yuri Y, Takashima T, Aizawa N, Ikeda N, Nishimura T, Fukunishi S, and Enomoto H
- Abstract
Background/objectives: Covered self-expandable metallic stents (CSEMS) are commonly used to treat malignant distal biliary obstructions. A 10-mm CSEMS carries the risk of obstructing the pancreatic and cystic duct orifices by adhering to the bile duct; therefore, postoperative pancreatitis and cholecystitis are reported to occur at a certain frequency. We have adopted a new drainage technique for malignant distal biliary obstruction called ''double-slim SEMS stenting" (DSS), where two small-diameter CSEMS are placed side-by-side. We aimed to compare the efficacy and safety of biliary drainage using DSS with those of conventional CSEMS., Methods: In total, 50 patients who underwent endoscopic biliary drainage for malignant distal biliary obstructions between April 2019 and March 2022 at Hyogo Medical University Hospital were enrolled. Patients were divided into DSS and Conventional groups, and the technical success rate, clinical success rate, adverse events, success rate for reintervention, recurrent biliary obstruction (RBO) rate, and time to RBO (TRBO) were evaluated., Results: There were no significant differences in patient characteristics between the DSS (n = 20) and Conventional groups (n = 30). The technical and clinical success rates were 100% in the DSS group. The incidence of adverse events was not significantly different between the two groups (DSS/Conventional: 10.0% [2/20]/20.0% [6/30]) ( p = 0.34). No acute cholecystitis was observed in the DSS group. The incidence rates of RBO were 30% (6/20) and 43% (13/30) in the DSS and Conventional groups, respectively ( p = 0.92). The median TRBO in the DSS group was 378 days, while the TRBO in the Conventional group was 195 days ( p = 0.03), resulting in significantly longer TRBO in the DSS group., Conclusions: DSS emerges as a viable and safe approach for biliary drainage in malignant distal biliary obstruction, demonstrating a lower incidence of adverse events and longer TRBO compared to conventional CSEMS.
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- 2024
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372. Clinical outcomes of peripherally inserted central catheters in patients with gastroenterological diseases: Report of a 9-year experience.
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Yamamoto T, Uchida Y, Yano J, Nakano R, Oshimo Y, Fujimoto T, Hisano K, Nakano K, Kawai T, Okuchi Y, Iguchi K, Tanaka E, Fukuda M, Taura K, and Terajima H
- Abstract
Background: Peripherally inserted central catheters (PICCs) are safe and useful alternatives to centrally inserted central catheters (CICCs). Several studies have investigated the effectiveness and safety of PICCs; however, few have focused on their use in patients with gastroenterological diseases. In the present study, we evaluated the outcomes of patients with gastroenterological diseases who received PICCs and identified the risk factors associated with central line-associated blood stream infection (CLABSI)., Methods: We retrospectively examined hospitalized patients at our institution who received PICCs between 2015 and 2023. We evaluated the data on their clinical characteristics, complications, and outcomes. Furthermore, we investigated the risk factors for CLABSIs., Results: A total of 405 patients were included (262 men and 143 women). The median age was 71 (range, 15-94) years. The vessels were inserted in the basilic, cephalic, and brachial veins in 366 (90%), 22 (6%), and 17 (4%) patients, respectively. The median procedure time was 32 [6-149] min. The median dwell time was 16 [0-188] days. CLABSI, catheter occlusions, phlebitis, and exit-site skin infection occurred in 14 (3.5%; 1.77/1000 catheter days), 6 (1.5%; 0.76/1000 catheter days), 3 (0.7%; 0.38/1000 catheter days), and 1 (0.2%; 0.13/1000 catheter days) patients, respectively. There was no case of deep vein thrombosis or pulmonary thrombosis due to PICC placement. Multivariate analysis performed using a Cox's proportional hazard regression model revealed that patients with gastroenterological malignancies had an independently higher risk for CLABSIs (odds ratio [OR]: 3.25, 95% confidence interval [CI]: 1.05-10.05, p = 0.041) and that older age (⩾70 years) tended to be associated with CLABSIs (OR: 3.61, 95% CI: 0.98-13.32, p = 0.054)., Conclusions: Gastroenterological malignancies and older age were associated with a higher risk of CLABSIs. Rigorous catheter management is crucial for preventing complications, particularly in vulnerable patient subgroups., Competing Interests: Declaration of conflicting interestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
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- 2024
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373. Dormancy regulator Prunus mume DAM6 promotes ethylene-mediated leaf senescence and abscission.
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Hsiang TF, Chen YY, Nakano R, Oikawa A, Matsuura T, Ikeda Y, and Yamane H
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- MADS Domain Proteins genetics, MADS Domain Proteins metabolism, Plant Dormancy genetics, Plant Growth Regulators metabolism, Plant Senescence, Plants, Genetically Modified, Prunus persica genetics, Prunus persica growth & development, Prunus persica metabolism, Seasons, Ethylenes metabolism, Gene Expression Regulation, Plant, Plant Leaves genetics, Plant Leaves growth & development, Plant Proteins genetics, Plant Proteins metabolism, Prunus genetics, Prunus growth & development, Prunus physiology
- Abstract
Leaf senescence and abscission in autumn are critical phenological events in deciduous woody perennials. After leaf fall, dormant buds remain on deciduous woody perennials, which then enter a winter dormancy phase. Thus, leaf fall is widely believed to be linked to the onset of dormancy. In Rosaceae fruit trees, DORMANCY-ASSOCIATED MADS-box (DAM) transcription factors control bud dormancy. However, apart from their regulatory effects on bud dormancy, the biological functions of DAMs have not been thoroughly characterized. In this study, we revealed a novel DAM function influencing leaf senescence and abscission in autumn. In Prunus mume, PmDAM6 expression was gradually up-regulated in leaves during autumn toward leaf fall. Our comparative transcriptome analysis using two RNA-seq datasets for the leaves of transgenic plants overexpressing PmDAM6 and peach (Prunus persica) DAM6 (PpeDAM6) indicated Prunus DAM6 may up-regulate the expression of genes involved in ethylene biosynthesis and signaling as well as leaf abscission. Significant increases in 1-aminocyclopropane-1-carboxylate accumulation and ethylene emission in DEX-treated 35S:PmDAM6-GR leaves reflect the inductive effect of PmDAM6 on ethylene biosynthesis. Additionally, ethephon treatments promoted autumn leaf senescence and abscission in apple and P. mume, mirroring the changes due to PmDAM6 overexpression. Collectively, these findings suggest that PmDAM6 may induce ethylene emission from leaves, thereby promoting leaf senescence and abscission. This study clarified the effects of Prunus DAM6 on autumn leaf fall, which is associated with bud dormancy onset. Accordingly, in Rosaceae, DAMs may play multiple important roles affecting whole plant growth during the tree dormancy induction phase., (© 2024. The Author(s), under exclusive licence to Springer Nature B.V.)
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- 2024
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374. A low-cost dpMIG-seq method for elucidating complex inheritance in polysomic crops: a case study in tetraploid blueberry.
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Nagasaka K, Nishimura K, Motoki K, Yamagata K, Nishiyama S, Yamane H, Tao R, Nakano R, and Nakazaki T
- Abstract
Next-generation sequencing (NGS) library construction often requires high-quality DNA extraction, precise adjustment of DNA concentration, and restriction enzyme digestion to reduce genome complexity, which results in increased time and cost in sample preparation and processing. To address these challenges, a PCR-based method for rapid NGS library preparation, named dpMIG-seq, has been developed and proven effective for high-throughput genotyping. However, the application of dpMIG-seq has been limited to diploid and polyploid species with disomic inheritance. In this study, we obtained genome-wide single nucleotide polymorphism (SNP) markers for tetraploid blueberry to evaluate genotyping and downstream analysis outcomes. Comparison of genotyping qualities inferred across samples with different DNA concentrations and multiple bioinformatics approaches revealed high accuracy and reproducibility of dpMIG-seq-based genotyping, with Pearson's correlation coefficients between replicates in the range of 0.91 to 0.98. Furthermore, we demonstrated that dpMIG-seq enables accurate genotyping of samples with low DNA concentrations. Subsequently, we applied dpMIG-seq to a tetraploid F
1 population to examine the inheritance probability of parental alleles. Pairing configuration analysis supported the random meiotic pairing of homologous chromosomes on a genome-wide level. On the other hand, preferential pairing was observed on chr-11, suggesting that there may be an exception to the random pairing. Genotypic data suggested quadrivalent formation within the population, although the frequency of quadrivalent formation varied by chromosome and cultivar. Collectively, the results confirmed applicability of dpMIG-seq for allele dosage genotyping and are expected to catalyze the adoption of this cost-effective and rapid genotyping technology in polyploid studies., Competing Interests: The authors declare that this research was conducted in the absence of any relationships that could be perceived as a potential conflict of interest., (© The Author(s) 2024. Published by Oxford University Press on behalf of Nanjing Agricultural University.)- Published
- 2024
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375. Prevalence of carbapenem-resistant Enterobacterales with bla IMP-6 predominance in hospitals from 2018 to 2021 in Nara, Japan.
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Kishi R, Nakano R, Nakano A, Harimoto T, Taniguchi R, Ando S, Suzuki Y, Yamaguchi K, Kitagawa D, Horiuchi S, Tsubaki K, Morita R, Kawabe T, and Yano H
- Abstract
Objectives: Despite the global health risk of carbapenem-resistant Enterobacterales (CRE), especially carbapenemase-producing Enterobacterales (CPE), Japan reports a significantly low frequency of CRE with a predominance of IMP-type carbapenemases. This study aimed to investigate the prevalence and characteristics of CRE isolated from hospitals in the city of Nara, Japan., Methods: We obtained 171 CRE isolates from 16 791 Enterobacterales isolated at 23 hospitals in Nara between January 2018 and December 2021. Isolates of CPE were characterized through antimicrobial susceptibility testing, the carbapenem inactivation method, PCR and DNA sequencing. Genotypic diversity of carbapenemase-producing Escherichia coli and Klebsiella pneumoniae was determined via MLST and PFGE., Results: The prevalence of CRE between 2018 and 2021 was 1.02%, gradually decreasing from 1.13% to 0.74%. Ninety-nine isolates were identified as CPE, representing six species. Ninety-seven CPE isolates harboured bla
IMP-6 , while the remaining two carried either blaIMP-1 or blaIMP-19 . Genotype analysis identified ST131 as the dominant genotype for E. coli , but none for K. pneumoniae . PFGE results suggested clonal spread of CPE in Hospital A, where CRE was isolated in high numbers ( n = 44)., Conclusions: In this study, CRE prevalence was marginally higher than previously reported in Japan, but still low in frequency. A predominance of Enterobacterales harbouring blaIMP-6 was confirmed in Nara. The spread of CPE at Hospital A suggested the possibility of a nosocomial outbreak due to blaIMP-6 transmission via plasmids or clonal spread. Continued monitoring is crucial for effective management of CRE prevalence in the region., (© The Author(s) 2024. Published by Oxford University Press on behalf of British Society for Antimicrobial Chemotherapy.)- Published
- 2024
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376. Metabolic Dysfunction-Associated Steatotic Liver Disease in Japan: Prevalence Trends and Clinical Background in the 10 Years before the Coronavirus Disease 2019 Pandemic.
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Sato A, Oomori Y, Nakano R, and Matsuura T
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- Humans, Middle Aged, Male, Female, Japan epidemiology, Prevalence, Adult, Aged, Body Mass Index, Diabetes Mellitus, Type 2 epidemiology, Diabetes Mellitus, Type 2 complications, SARS-CoV-2, Metabolic Diseases epidemiology, Metabolic Diseases complications, Pandemics, Risk Factors, Metabolic Syndrome epidemiology, Fatty Liver epidemiology, COVID-19 epidemiology, COVID-19 complications
- Abstract
Background and Objectives: The trends in metabolic dysfunction-associated steatotic liver disease (MASLD) and related metabolic dysfunctions in Japan are unknown. Thus, we aimed to clarify these trends before the novel coronavirus disease 2019 pandemic in Japan. Materials and Methods: We included Japanese individuals aged 25-79 years who underwent health examinations at our center. We analyzed anthropometry, lifestyle-related disease, and nutritional intake in relation to MASLD trends from 2010-2019. Results: The prevalence of MASLD increased in all ages and body mass index (BMI) classes, reaching 30.3% in males and 16.1% in females, with MASLD accounting for 75% of steatotic liver cases and more than half of all type 2 diabetes mellitus (T2DM) and high waist circumference (HWC) cases. The increase in the prevalence of MASLD was thought to be largely attributable to an increase in that of the incidence of steatotic liver itself, and there was no increase in the prevalence of other factors, such as overweight, T2DM, hypertension, and dyslipidemia. The prevalence of glucose metabolic disorders (GMDs) and hypertension decreased. National nutritional data showed an increase in energy intake, total fat, saturated fatty acids, monounsaturated fatty acids, and polyunsaturated fatty acids, which correlated with a decrease in GMDs. Salt intake also decreased, which correlated with hypertension. The MASLD group had a higher prevalence of all related metabolic factors than the non-MASLD group, especially HWC, T2DM, and hyperlipidemia. Conclusions: The prevalence of MASLD increased with that of steatotic liver, regardless of age or BMI. A relationship between increased dietary fat, increased steatotic liver, and decreased GMDs was suggested.
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- 2024
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377. Effects of buccal cavity parasite Ceratothoa carinata (Isopoda, Cymothoidae) on the condition and reproduction of its host fish Japanese scad Decapterus maruadsi.
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Nakano R, Okumura Y, and Hata H
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- Animals, Female, Male, Host-Parasite Interactions, Seasons, Mouth parasitology, East Asian People, Fish Diseases parasitology, Isopoda physiology, Reproduction
- Abstract
All species of the isopod family Cymothoidae are obligate fish parasites, extracting nourishment through hematophagy and tissue consumption. To elucidate the detrimental effects of this parasitic relationship upon the host fish, we examined body length, weight of body, gonad, liver and stomach contents, and condition factor of Japanese scad Decapterus maruadsi infected with the buccal cavity parasite Ceratothoa carinata in different seasons. During the host fish's breeding season in July, the wet weight and condition factor of male and female host fish ages 1 and 2 were conspicuously diminished. No impacts were detected in September, after the breeding season. We found no impact of the parasite on the stomach content weight or signs of prey fish in the stomachs. Thus, parasite infection with C. carinata potentially diminishes the reproductive success of the host fish by negatively impacting the host's physiological condition, particularly during the breeding season.
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- 2024
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378. Interleukin-33 and liver natural killer cells: A novel perspective on antitumor activity in liver fibrosis.
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Imaoka Y, Ohira M, Imaoka K, Bekki T, Nakano R, Yano T, Tanaka Y, Nakayama T, Akabane M, Tajima T, Yokota S, Krams SM, Martinez OM, Esquivel CO, Sasaki K, and Ohdan H
- Abstract
Aim: Liver fibrosis, heralding the potential progression to cirrhosis and hepatocellular carcinoma (HCC), compromises patient survival and augments post-hepatectomy recurrence. This study examined the detrimental effects of liver fibrosis on the antitumor functions of liver natural killer (NK) cells and the interleukin-33 (IL-33) signaling pathway., Methods: Our investigation, anchored in both human physiologies using living and deceased donor livers and the carbon tetrachloride (CCl
4 )-induced mouse fibrosis model, aimed to show a troubling interface between liver fibrosis and weakened hepatic immunity., Results: The Fibrosis-4 (FIB-4) index emerged as a salient, non-invasive prognostic marker, and its elevation correlated with reduced survival and heightened recurrence after HCC surgery even after propensity matching (n = 385). We established a strong correlation between liver fibrosis and liver NK cell dysfunction by developing a method for extracting liver NK cells from the liver graft perfusate. Furthermore, liver fibrosis ostensibly disrupted chemokines and promoted IL-33 expression, impeding liver NK cell antitumor activities, as evidenced in mouse models. Intriguingly, our results implicated IL-33 in diminishing the antitumor responses of NK cells. This interrelation, consistent across both mouse and human studies, coincides with clinical data suggesting that liver fibrosis predisposes patients to an increased risk of HCC recurrence., Conclusion: Our study revealed a critical relationship between liver fibrosis and compromised tumor immunity, emphasizing the potential interference of IL-33 with NK cell function. These insights advocate for advanced immunostimulatory therapies targeting cytokines, such as IL-33, aiming to bolster the hepatic immune response against HCC in the context of liver fibrosis., (© 2024 The Author(s). Hepatology Research published by John Wiley & Sons Australia, Ltd on behalf of Japan Society of Hepatology.)- Published
- 2024
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379. Evidence for multi-fragmentation and mass shedding of boulders on rubble-pile binary asteroid system (65803) Didymos.
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Pajola M, Tusberti F, Lucchetti A, Barnouin O, Cambioni S, Ernst CM, Dotto E, Daly RT, Poggiali G, Hirabayashi M, Nakano R, Epifani EM, Chabot NL, Della Corte V, Rivkin A, Agrusa H, Zhang Y, Penasa L, Ballouz RL, Ivanovski S, Murdoch N, Rossi A, Robin C, Ieva S, Vincent JB, Ferrari F, Raducan SD, Campo-Bagatin A, Parro L, Benavidez P, Tancredi G, Karatekin Ö, Trigo-Rodriguez JM, Sunshine J, Farnham T, Asphaug E, Deshapriya JDP, Hasselmann PHA, Beccarelli J, Schwartz SR, Abell P, Michel P, Cheng A, Brucato JR, Zinzi A, Amoroso M, Pirrotta S, Impresario G, Bertini I, Capannolo A, Caporali S, Ceresoli M, Cremonese G, Dall'Ora M, Gai I, Casajus LG, Gramigna E, Manghi RL, Lavagna M, Lombardo M, Modenini D, Palumbo P, Perna D, Tortora P, Zannoni M, and Zanotti G
- Abstract
Asteroids smaller than 10 km are thought to be rubble piles formed from the reaccumulation of fragments produced in the catastrophic disruption of parent bodies. Ground-based observations reveal that some of these asteroids are today binary systems, in which a smaller secondary orbits a larger primary asteroid. However, how these asteroids became binary systems remains unclear. Here, we report the analysis of boulders on the surface of the stony asteroid (65803) Didymos and its moonlet, Dimorphos, from data collected by the NASA DART mission. The size-frequency distribution of boulders larger than 5 m on Dimorphos and larger than 22.8 m on Didymos confirms that both asteroids are piles of fragments produced in the catastrophic disruption of their progenitors. Dimorphos boulders smaller than 5 m have size best-fit by a Weibull distribution, which we attribute to a multi-phase fragmentation process either occurring during coalescence or during surface evolution. The density per km
2 of Dimorphos boulders ≥1 m is 2.3x with respect to the one obtained for (101955) Bennu, while it is 3.0x with respect to (162173) Ryugu. Such values increase once Dimorphos boulders ≥5 m are compared with Bennu (3.5x), Ryugu (3.9x) and (25143) Itokawa (5.1x). This is of interest in the context of asteroid studies because it means that contrarily to the single bodies visited so far, binary systems might be affected by subsequential fragmentation processes that largely increase their block density per km2 . Direct comparison between the surface distribution and shapes of the boulders on Didymos and Dimorphos suggest that the latter inherited its material from the former. This finding supports the hypothesis that some asteroid binary systems form through the spin up and mass shedding of a fraction of the primary asteroid., (© 2024. The Author(s).)- Published
- 2024
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380. Fast boulder fracturing by thermal fatigue detected on stony asteroids.
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Lucchetti A, Cambioni S, Nakano R, Barnouin OS, Pajola M, Penasa L, Tusberti F, Ramesh KT, Dotto E, Ernst CM, Daly RT, Mazzotta Epifani E, Hirabayashi M, Parro L, Poggiali G, Campo Bagatin A, Ballouz RL, Chabot NL, Michel P, Murdoch N, Vincent JB, Karatekin Ö, Rivkin AS, Sunshine JM, Kohout T, Deshapriya JDP, Hasselmann PHA, Ieva S, Beccarelli J, Ivanovski SL, Rossi A, Ferrari F, Rossi C, Raducan SD, Steckloff J, Schwartz S, Brucato JR, Dall'Ora M, Zinzi A, Cheng AF, Amoroso M, Bertini I, Capannolo A, Caporali S, Ceresoli M, Cremonese G, Della Corte V, Gai I, Gomez Casajus L, Gramigna E, Impresario G, Lasagni Manghi R, Lavagna M, Lombardo M, Modenini D, Palumbo P, Perna D, Pirrotta S, Tortora P, Zannoni M, and Zanotti G
- Abstract
Spacecraft observations revealed that rocks on carbonaceous asteroids, which constitute the most numerous class by composition, can develop millimeter-to-meter-scale fractures due to thermal stresses. However, signatures of this process on the second-most populous group of asteroids, the S-complex, have been poorly constrained. Here, we report observations of boulders' fractures on Dimorphos, which is the moonlet of the S-complex asteroid (65803) Didymos, the target of NASA's Double Asteroid Redirection Test (DART) planetary defense mission. We show that the size-frequency distribution and orientation of the mapped fractures are consistent with formation through thermal fatigue. The fractures' preferential orientation supports that these have originated in situ on Dimorphos boulders and not on Didymos boulders later transferred to Dimorphos. Based on our model of the fracture propagation, we propose that thermal fatigue on rocks exposed on the surface of S-type asteroids can form shallow, horizontally propagating fractures in much shorter timescales (100 kyr) than in the direction normal to the boulder surface (order of Myrs). The presence of boulder fields affected by thermal fracturing on near-Earth asteroid surfaces may contribute to an enhancement in the ejected mass and momentum from kinetic impactors when deflecting asteroids., (© 2024. The Author(s).)
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- 2024
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381. Increased levels of circulating cell-free DNA in COVID-19 patients with respiratory failure.
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Tanaka A, Wakayama K, Fukuda Y, Ohta S, Homma T, Ando K, Nishihara Y, Nakano R, Zhao J, Suzuki Y, Kyotani Y, Yano H, Kasahara K, Chung KP, Sagara H, Yoshizumi M, and Nakahira K
- Subjects
- Humans, Male, Female, Aged, Middle Aged, SARS-CoV-2 isolation & purification, Biomarkers blood, Respiration, Artificial, Aged, 80 and over, Oxygen Inhalation Therapy, COVID-19 blood, COVID-19 complications, COVID-19 virology, Cell-Free Nucleic Acids blood, Respiratory Insufficiency blood, Respiratory Insufficiency therapy, Respiratory Insufficiency virology, DNA, Mitochondrial blood
- Abstract
Cell-free DNA (cfDNA) is released from injured cells and aggravates inflammation. Patients with coronavirus disease (COVID-19) often develop pneumonia and respiratory failure, and require oxygen therapy (OT), including mechanical ventilation (MV). It remains unclear whether cfDNA predicts the risk of receiving OT or MV in COVID-19 patients. Therefore, we hypothesized that circulating cfDNA levels could reflect the severity of respiratory failure and determine a therapeutic approach for oxygenation in patients with COVID-19. We analyzed cfDNA levels in serum samples from 95 hospitalized patients with COVID-19 at Showa University Hospital (Tokyo, Japan). cfDNA levels were assessed by measuring the copy numbers of mitochondrial DNA (mtDNA) and nuclear DNA (nDNA) using quantitative real-time PCR (qPCR). Both cf-nDNA and cf-mtDNA levels were negatively correlated with adjusted SpO
2 for FiO2 (SpO2 /FiO2 ratio). Elevated cf-nDNA and cf-mtDNA levels were associated with the requirement for OT or MV during patient admission. Multivariate logistic regression analysis revealed that cf-nDNA and cf-mtDNA levels were independent risk factors for OT and MV. These results suggest that both serum cf-nDNA and cf-mtDNA could serve as useful early biomarkers to indicate the necessity of OT or MV in patients with COVID-19., (© 2024. The Author(s).)- Published
- 2024
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382. Base-Stabilized Gallium Sulfides and Selenides Supported by a Bis(oxazolinyl)(phenyl)methanide Ligand.
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Ding T, Nakano R, and Yamashita M
- Abstract
Gallylene supported by a bis(oxazolinyl)(phenyl)methanide (Boxm) ligand was synthesized and structurally characterized. The reaction of this gallylene with triphenylphosphine sulfide/selenide yielded dimeric gallium sulfide and selenide. These compounds could be converted to monomeric terminal sulfide and selenide by coordination of an external Lewis base such as an N-heterocyclic carbene (NHC or IMe
4 ) and 4-dimethylaminopyridiene (DMAP). These doubly-base-stabilized gallium sulfide/selenide reacted with phenyl isocyanate to give the corresponding cycloadducts by releasing the Lewis base, indicating the formation of a single-base-stabilized gallium sulfide/selenide intermediate., (© 2024 The Authors. Chemistry - A European Journal published by Wiley-VCH GmbH.)- Published
- 2024
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383. The steatosis-associated fibrosis estimator score is a useful indicator of recurrence and survival after initial curative hepatectomy for hepatocellular carcinoma.
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Bekki T, Ohira M, Imaoka Y, Hattori M, Nakano R, Sakai H, Kuroda S, Tahara H, Ide K, Kobayashi T, and Ohdan H
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Aims: Liver fibrosis predisposes patients to liver failure and hepatocellular carcinoma. Various markers, which can be calculated easily from serum parameters, have been reported to predict liver fibrosis accurately. This study investigated the prognostic factors, including blood-based markers for liver fibrosis of patients with hepatocellular carcinoma following initial curative hepatectomy., Methods: This retrospective study included 407 patients with hepatocellular carcinoma who underwent initial curative hepatectomy between April 2010 and December 2017. We investigated prognosis-associated variables in these patients., Results: Among the blood-based markers for liver fibrosis examined in this study, the steatosis-associated fibrosis estimator score demonstrated the best predictive capabilities. This score was revealed as a poor prognostic factor for both overall survival and recurrence-free survival in patients with hepatocellular carcinoma following initial curative hepatectomy. A high steatosis-associated fibrosis estimator score was independently associated with poor overall survival and recurrence-free survival. After propensity score-matching to minimize bias between high- and low-steatosis-associated fibrosis estimator score groups, the high steatosis-associated fibrosis estimator score remained associated with poor overall survival and recurrence-free survival., Conclusions: The steatosis-associated fibrosis estimator score is an independent predictor of long-term prognosis in patients with hepatocellular carcinoma following initial curative hepatectomy., Competing Interests: The authors declare no conflicts of interest for this article. Hideki Ohdan is an editorial board member of Annals of Gastroenterological Surgery., (© 2024 The Author(s). Annals of Gastroenterological Surgery published by John Wiley & Sons Australia, Ltd on behalf of The Japanese Society of Gastroenterological Surgery.)
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- 2024
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384. Objectification of evaluation criteria in microscopic agglutination test using deep learning.
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Nakano R, Oyamada Y, Ozuru R, Yoshimura M, and Hiromatsu K
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- Humans, Deep Learning, Agglutination Tests methods, Microscopy methods
- Abstract
We aim to objectify the evaluation criteria of agglutination rate estimation in the Microscopic Agglutination Test (MAT). This study proposes a deep learning method that extracts free leptospires from dark-field microscopic images and calculates the agglutination rate. The experiments show the effect of objectification with real pictures., Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: We hereby declare the following conflicts of interest in relation to this study. The authors YO and RO are co-inventors of a patent 7370573 based on the technology developed in this research. This patent is registered in Japan. To ensure that this conflict of interest has not biased the research outcomes, an independent audit of the entire process of data collection, analysis, and interpretation was conducted. The other co-authors declare no direct financial conflicts of interest related to this research., (Copyright © 2023. Published by Elsevier B.V.)
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- 2024
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385. Temporal progression of pancreatic cancer computed tomography findings until diagnosis: A large-scale multicenter study.
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Gonda M, Masuda A, Kobayashi T, Iemoto T, Kakuyama S, Ezaki T, Ikegawa T, Hirata Y, Tsumura H, Ogisu K, Nakano R, Fujigaki S, Nakagawa T, Takagi M, Yamanaka K, Sato Y, Fujita K, Furumatsu K, Kato T, Sakai A, Shiomi H, Sanuki T, Arisaka Y, Okabe Y, Toyama H, Sofue K, and Kodama Y
- Subjects
- Humans, Retrospective Studies, Male, Female, Middle Aged, Aged, Time Factors, Early Detection of Cancer methods, Dilatation, Pathologic diagnostic imaging, Pancreas diagnostic imaging, Pancreas pathology, Adult, Aged, 80 and over, Pancreatic Neoplasms diagnostic imaging, Pancreatic Neoplasms pathology, Pancreatic Neoplasms diagnosis, Carcinoma, Pancreatic Ductal diagnostic imaging, Carcinoma, Pancreatic Ductal pathology, Disease Progression, Tomography, X-Ray Computed, Pancreatic Ducts diagnostic imaging, Pancreatic Ducts pathology, Atrophy
- Abstract
Background: Focal parenchymal atrophy and main pancreatic duct (MPD) dilatation have been identified as early signs of pancreatic ductal adenocarcinoma. However, limited evidence exists regarding their temporal progression due to previous study limitations with restricted case numbers., Objective: To ascertain a more precise frequency assessment of suspicious pancreatic ductal adenocarcinoma findings as well as delineate the temporal progression of them., Methods: A multicenter retrospective study was conducted on patients diagnosed with pancreatic ductal adenocarcinoma between 2015 and 2021. We included patients who had undergone at least one computed tomography (CT) scan ≥6 months before diagnosing pancreatic ductal adenocarcinoma. The temporal progression of suspicious pancreatic ductal adenocarcinoma findings on CT was investigated., Results: Out of 1832 patients diagnosed with pancreatic ductal adenocarcinoma, 320 had a previous CT before their diagnosis. Suspicious pancreatic ductal adenocarcinoma findings were detected in 153 cases (47.8%), with focal parenchymal atrophy (26.6%) being the most common followed by MPD dilatation (11.3%). Focal parenchymal atrophy was the earliest detectable sign among all suspicious findings and became visible on average 2.7 years before diagnosis, and the next most common, MPD dilatation, 1.1 years before diagnosis. Other findings, such as retention cysts, were less frequent and appeared around 1 year before diagnosis. Focal parenchymal atrophy followed by MPD dilatation was observed in 10 patients but not in reverse order. Focal parenchymal atrophy was more frequently detected in the pancreatic body/tail. No significant relationship was found between the pathological pancreatic ductal adenocarcinoma differentiation or tumor stage and the time course of the CT findings. All cases of focal parenchymal atrophy progressed just prior to diagnosis, and the atrophic area was occupied by tumor at diagnosis. Main pancreatic duct dilatation continued to progress until diagnosis., Conclusion: This large-scale study revealed that the temporal progression of focal parenchymal atrophy is the earliest detectable sign indicating pancreatic ductal adenocarcinoma. These results provide crucial insights for early pancreatic ductal adenocarcinoma detection., (© 2024 The Authors. United European Gastroenterology Journal published by Wiley Periodicals LLC on behalf of United European Gastroenterology.)
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- 2024
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386. A case of successful management for spontaneous rupture of paraganglioma treated with preoperative transcatheter arterial embolization.
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Nakagawa M, Tanimine N, Sakai H, Nakano R, Kuroda S, Ohira M, Tahara H, Ide K, Kobayashi T, Arihiro K, and Ohdan H
- Abstract
Background: Tumors arising from catecholamine-producing chromophil cells in paraganglia are termed paragangliomas (PGLs), which biologically resemble pheochromocytomas (PCCs) that arise from the adrenal glands. Spontaneous rupture of a PGL is rare and can be fatal. Although elective surgery for ruptured PCCs after transcatheter arterial embolization (TAE) has been shown to provide good outcomes, the efficacy of TAE pretreatment for ruptured PGL remains unknown., Case Presentation: A 65-year-old female with hypertension and tachycardia was diagnosed with a 3-cm PGL located behind the inferior vena cava. The patient was scheduled to undergo an elective surgery with antihypertensive therapy. However, she presented with a chief complaint of abdominal pain and was diagnosed with intratumoral hemorrhage. Urgent TAE was performed that successfully achieved hemorrhage control. After TAE, serum levels of both epinephrine and norepinephrine were within the normal range. Abdominal computed tomography revealed resolving retroperitoneal hematoma. Elective open surgery was performed without significant intraoperative bleeding or fluctuations in blood pressure., Conclusion: We report a case of successful preoperative TAE for functional PGL to control intraoperative blood pressure fluctuations and bleeding. Preoperative TAE could be a useful procedure for the surgical preparation of functional PGL, including unruptured cases., (© 2024. The Author(s).)
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- 2024
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387. Prediction of Efficacy for Atezolizumab/Bevacizumab in Unresectable Hepatocellular Carcinoma with Hepatobiliary-Phase Gadolinium Ethoxybenzyl-Diethylenetriaminepentaacetic Acid MRI.
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Kunichika H, Minamiguchi K, Tachiiri T, Shimizu K, Taiji R, Yamada A, Nakano R, Irizato M, Yamauchi S, Marugami A, Marugami N, Kishida H, Nakagawa H, Takewa M, Kageyama K, Yamamoto A, Ueshima E, Sofue K, Kita R, Kurakami H, and Tanaka T
- Abstract
Background: This study aimed to examine whether the coefficient of variation (CV) in the hepatobiliary-phase (HBP) of Gd-EOB-DTPA-MRI could be an independent predictive factor for tumor progression., Methods: Patients who underwent Gd-EOB-DTPA-MRI before Atezolizumab/bevacizumab therapy at six affiliated institutions between 2018 and 2022 were included. CV for each patient was calculated as the mean value for up to five tumors larger than 10 mm, and CV of the whole tumor was calculated using LIFEx software. The tumor response was evaluated within 6-10 weeks. The primary endpoint was to investigate the predictive factors, including CV, related to tumor progression using logistic regression analysis. The secondary endpoints were tumor response rate and progression-free survival (PFS) based on CV., Results: Of the 46 enrolled patients, 13 (28.3%) underwent early progressive disease. Multivariate analysis revealed that a high CV (≥0.22) was an independent predictive factor for tumor progression ( p = 0.043). Patients with a high CV had significantly frequent PD than those with a low CV (43.5 vs. 13.0%, p = 0.047). Patients with a high CV tended to have shorter PFS than those with a low CV (3.5 vs. 6.7 months, p = 0.071)., Conclusion: Quantitative analysis using CV in the HBP of Gd-EOB-DTPA-MRI may be useful for predicting tumor progression for atezolizumab/bevacizumab therapy.
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- 2024
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388. Degenerate oligonucleotide primer MIG-seq: an effective PCR-based method for high-throughput genotyping.
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Nishimura K, Kokaji H, Motoki K, Yamazaki A, Nagasaka K, Mori T, Takisawa R, Yasui Y, Kawai T, Ushijima K, Yamasaki M, Saito H, Nakano R, and Nakazaki T
- Subjects
- DNA Primers genetics, Quantitative Trait Loci genetics, Oryza genetics, Triticum genetics, Solanum lycopersicum genetics, Chromosome Mapping, DNA, Plant genetics, Glycine max genetics, Gene Library, Polymorphism, Genetic, Crops, Agricultural genetics, Genotype, High-Throughput Nucleotide Sequencing methods, Polymerase Chain Reaction methods, Genotyping Techniques methods
- Abstract
Next-generation sequencing (NGS) library construction often involves using restriction enzymes to decrease genome complexity, enabling versatile polymorphism detection in plants. However, plant leaves frequently contain impurities, such as polyphenols, necessitating DNA purification before enzymatic reactions. To overcome this problem, we developed a PCR-based method for expeditious NGS library preparation, offering flexibility in number of detected polymorphisms. By substituting a segment of the simple sequence repeat sequence in the MIG-seq primer set (MIG-seq being a PCR method enabling library construction with low-quality DNA) with degenerate oligonucleotides, we introduced variability in detectable polymorphisms across various crops. This innovation, named degenerate oligonucleotide primer MIG-seq (dpMIG-seq), enabled a streamlined protocol for constructing dpMIG-seq libraries from unpurified DNA, which was implemented stably in several crop species, including fruit trees. Furthermore, dpMIG-seq facilitated efficient lineage selection in wheat and enabled linkage map construction and quantitative trait loci analysis in tomato, rice, and soybean without necessitating DNA concentration adjustments. These findings underscore the potential of the dpMIG-seq protocol for advancing genetic analyses across diverse plant species., (© 2024 The Authors. The Plant Journal published by Society for Experimental Biology and John Wiley & Sons Ltd.)
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- 2024
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389. Clinical Characteristics of Cryopyrin-Associated Periodic Syndrome and Long-Term Real-World Efficacy and Tolerability of Canakinumab in Japan: Results of a Nationwide Survey.
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Miyamoto T, Izawa K, Masui S, Yamazaki A, Yamasaki Y, Matsubayashi T, Shiraki M, Ohnishi H, Yasumura J, Kawabe T, Miyamae T, Matsubara T, Arakawa N, Ishige T, Takizawa T, Shimbo A, Shimizu M, Kimura N, Maeda Y, Maruyama Y, Shigemura T, Furuta J, Sato S, Tanaka H, Izumikawa M, Yamamura M, Hasegawa T, Kaneko H, Nakagishi Y, Nakano N, Iida Y, Nakamura T, Wakiguchi H, Hoshina T, Kawai T, Murakami K, Akizuki S, Morinobu A, Ohmura K, Eguchi K, Sonoda M, Ishimura M, Furuno K, Kashiwado M, Mori M, Kawahata K, Hayama K, Shimoyama K, Sasaki N, Ito T, Umebayashi H, Omori T, Nakamichi S, Dohmoto T, Hasegawa Y, Kawashima H, Watanabe S, Taguchi Y, Nakaseko H, Iwata N, Kohno H, Ando T, Ito Y, Kataoka Y, Saeki T, Kaneko U, Murase A, Hattori S, Nozawa T, Nishimura K, Nakano R, Watanabe M, Yashiro M, Nakamura T, Komai T, Kato K, Honda Y, Hiejima E, Yonezawa A, Bessho K, Okada S, Ohara O, Takita J, Yasumi T, and Nishikomori R
- Subjects
- Humans, Japan, Female, Male, Retrospective Studies, Child, Child, Preschool, Adult, Adolescent, Young Adult, Treatment Outcome, Middle Aged, Infant, NLR Family, Pyrin Domain-Containing 3 Protein genetics, Mutation, Remission Induction, Cryopyrin-Associated Periodic Syndromes drug therapy, Cryopyrin-Associated Periodic Syndromes genetics, Antibodies, Monoclonal, Humanized therapeutic use
- Abstract
Objective: We assess the clinical characteristics of patients with cryopyrin-associated periodic syndrome (CAPS) in Japan and evaluate the real-world efficacy and safety of interleukin-1 (IL-1) inhibitors, primarily canakinumab., Methods: Clinical information was collected retrospectively, and serum concentrations of canakinumab and cytokines were analyzed., Results: A total of 101 patients were included, with 86 and 15 carrying heterozygous germline and somatic mosaic mutations, respectively. We identified 39 mutation types, and the common CAPS-associated symptoms corresponded with those in previous reports. Six patients (5.9% of all patients) died, with four of the deaths caused by CAPS-associated symptoms. Notably, 73.7% of patients (100%, 79.6%, and 44.4% of familial cold autoinflammatory syndrome, Muckle-Wells syndrome, and chronic infantile neurological cutaneous articular syndrome/neonatal onset multisystem inflammatory disease, respectively) achieved complete remission with canakinumab, and early therapeutic intervention was associated with better auditory outcomes. In some patients, canakinumab treatment stabilized the progression of epiphysial overgrowth and improved height gain, visual acuity, and renal function. However, 23.7% of patients did not achieve inflammatory remission with crucial deterioration of organ damage, with two dying while receiving high-dose canakinumab treatment. Serological analysis of canakinumab and cytokine concentrations revealed that the poor response was not related to canakinumab shortage. Four inflammatory nonremitters developed inflammatory bowel disease (IBD)-unclassified during canakinumab treatment. Dual biologic therapy with canakinumab and anti-tumor necrosis factor-α agents was effective for IBD- and CAPS-associated symptoms not resolved by canakinumab monotherapy., Conclusion: This study provides one of the largest epidemiologic data sets for CAPS. Although early initiation of anti-IL-1 treatment with canakinumab is beneficial for improving disease prognosis, some patients do not achieve remission despite a high serum concentration of canakinumab. Moreover, IBD may develop in CAPS after canakinumab treatment., (© 2024 American College of Rheumatology.)
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- 2024
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390. Measuring the Flight Trajectory of a Free-Flying Moth on the Basis of Noise-Reduced 3D Point Cloud Time Series Data.
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Nishisue K, Sugiura R, Nakano R, Shibuya K, and Fukuda S
- Abstract
Pest control is crucial in crop production; however, the use of chemical pesticides, the primary method of pest control, poses environmental issues and leads to insecticide resistance in pests. To overcome these issues, laser zapping has been studied as a clean pest control technology against the nocturnal cotton leafworm, Spodoptera litura , which has high fecundity and causes severe damage to various crops. For better sighting during laser zapping, it is important to measure the coordinates and speed of moths under low-light conditions. To achieve this, we developed an automatic detection pipeline based on point cloud time series data from stereoscopic images. We obtained 3D point cloud data from disparity images recorded under infrared and low-light conditions. To identify S. litura , we removed noise from the data using multiple filters and a support vector machine. We then computed the size of the outline box and directional angle of the 3D point cloud time series to determine the noisy point clouds. We visually inspected the flight trajectories and found that the size of the outline box and the movement direction were good indicators of noisy data. After removing noisy data, we obtained 68 flight trajectories, and the average flight speed of free-flying S. litura was 1.81 m/s.
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- 2024
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391. Impact of a Liver Immune Status Index among Living Liver Transplant Recipients with Hepatocellular Carcinoma.
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Imaoka Y, Ohira M, Sato S, Chogahara I, Bekki T, Imaoka K, Nakano R, Yano T, Sakai H, Kuroda S, Tahara H, Ide K, Kobayashi T, Tanaka Y, Akabane M, Sasaki K, and Ohdan H
- Abstract
Introduction: Hepatocellular carcinoma (HCC) is a major global health challenge, being the fifth most prevalent neoplasm and the third leading cause of cancer-related deaths worldwide. Liver transplantation offers a potentially curative approach for HCC, yet the risk of recurrence posttransplantation remains a significant concern. This study investigates the influence of a liver immune status index (LISI) on the prognosis of patients undergoing living-donor liver transplantation for HCC., Methods: In a single-center study spanning from 2001 to 2020, 113 patients undergoing living-donor liver transplantation for HCC were analyzed. LISI was calculated for each donor liver using body mass index, serum albumin levels, and the fibrosis-4 index. This study assessed the impact of donor LISI on short-term recurrence rates and survival, with special attention to its correlation with the antitumor activity of natural killer (NK) cells in the liver., Results: The patients were divided into two grades (high donor LISI, >-1.23 [n = 43]; and low donor LISI, ≤-1.23 [n = 70]). After propensity matching to adjust the background of recipient factors, the survival rates at 1 and 3 years were 92.6% and 88.9% and 81.5% and 70.4% in the low and high donor LISI groups, respectively (p = 0.11). The 1- and 3-year recurrence-free survival were 88.9% and 85.2% and 74.1% and 55.1% in the low and high donor LISI groups, respectively (p = 0.02)., Conclusions: This study underscores the potential of an LISI as a noninvasive biomarker for assessing liver NK cell antitumor capacity, with implications for living-donor liver transplantation for HCC. Donor LISI emerges as a significant predictor of early recurrence risk following living-donor liver transplantation for HCC, highlighting the role of the liver antitumor activity of liver NK cells in managing liver malignancies., Competing Interests: None, (Copyright © Japan Medical Association.)
- Published
- 2024
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392. Immunotherapy Using Activated Natural Killer Cells Improves Postoperative Neutrophil-to-Lymphocyte Ratio and Long-Term Prognosis of Living Donor Liver Transplant Recipients With Hepatocellular Carcinoma.
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Imaoka K, Ohira M, Hattori M, Chogahara I, Sato S, Nakamura M, Bekki T, Sato K, Imaoka Y, Nakano R, Yano T, Sakai H, Kuroda S, Tahara H, Ide K, Kobayashi T, Tanaka Y, and Ohdan H
- Subjects
- Humans, Male, Female, Retrospective Studies, Middle Aged, Prognosis, Lymphocytes immunology, Adult, Carcinoma, Hepatocellular surgery, Carcinoma, Hepatocellular immunology, Carcinoma, Hepatocellular therapy, Liver Transplantation, Liver Neoplasms surgery, Liver Neoplasms immunology, Neutrophils immunology, Living Donors, Killer Cells, Natural immunology, Immunotherapy methods
- Abstract
Objective: Preoperative neutrophil-to-lymphocyte ratio (NLR) is a well-known prognostic indicator in various malignancies; however, the impact of postoperative NLR on living donor liver transplant (LDLT) recipients is unknown. Immunotherapy with donor liver-derived activated natural killer (NK) cells may improve postoperative NLR by coactivating immune cells or suppressing activated neutrophils. This study aims to clarify the clinical significance of postoperative NLR in recipients after LDLT with HCC and assess whether immunotherapy improves postoperative NLR., Methods: We conducted a retrospective study of LDLT recipients between 2001 and 2022 to evaluate the clinical significance of postoperative NLR. Furthermore, the correlation between postoperative NLR and the activation marker of infused NK cells was also evaluated. The postoperative NLR was examined 4 weeks after LDLT., Results: The postoperative high NLR group (N = 78) had preoperative lower NLR and higher model for end-stage liver disease and a higher rate of postoperative infection within 30 days after LDLT than the postoperative low NLR group (N = 41). Postoperative high NLR (hazard ratio [HR], 2.62; 95% confidence interval [CI], 1.01-6.79; P = .047) and nontreatment of immunotherapy (HR, 3.10; 95% CI, 1.33-7.22; P < .01) were independent risk factors for poor overall survival in multivariate analysis. Furthermore, the activation marker of infused NK cells is inversely correlated with decreased postoperative NLR., Conclusions: The higher level of postoperative NLR was independently associated with poor prognosis in patients after LDLT with HCC. Immunotherapy using activated NK cells may improve postoperative NLR and long-term prognosis., Competing Interests: Declaration of competing interest All the authors declare 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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393. Atherosclerosis Deteriorates Liver Ischemia/Reperfusion Injury Via Interferon Regulatory Factor-1 Overexpression in a Murine Model.
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Nakano R, Chogahara I, Ohira M, Imaoka K, Sato S, Bekki T, Sato K, Imaoka Y, Marlen D, Tanaka Y, and Ohdan H
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- Animals, Mice, Male, Killer Cells, Natural immunology, Interleukin-15 genetics, Reperfusion Injury metabolism, Disease Models, Animal, Mice, Inbred C57BL, Atherosclerosis genetics, Atherosclerosis pathology, Liver pathology, Liver metabolism, Interferon Regulatory Factor-1 genetics, Interferon Regulatory Factor-1 metabolism
- Abstract
Background: Abdominal aortic calcification (AAC) is associated with cardiovascular-related mortality, along with an elevated risk of coronary, cerebrovascular, and cardiovascular events. Notably, AAC is strongly associated with poor overall and recurrence free survival posthepatectomy for hepatocellular carcinoma. Despite the acknowledged significance of atherosclerosis in systemic inflammation, its response to ischemia/reperfusion injury (IRI) remains poorly elucidated. In this study, we aimed to clarify the impact of atherosclerosis on the liver immune system using a warm IRI mouse model., Methods: Injury was induced in an atherosclerotic mouse model (ApoE
-/- ) or C57BL/6J wild-type (WT) mice through 70% clamping for 1 hour and analyzed after 6 hours of reperfusion., Results: Elevated serum levels of aspartate and alanine aminotransferase, along with histological assessment, indicated considerable damage in the livers of ApoE-/- mice than that in WT mice. This indicates a substantial contribution of atherosclerosis to IRI. Furthermore, T and natural killer (NK) cells in ApoE-/- mouse livers displayed a more inflammatory phenotype than those in WT mouse livers. Reverse transcription-polymerase chain reaction analysis revealed a significant upregulation of interleukin (IL)-15 and its transcriptional regulator, interferon regulatory factor-1 (IRF-1) in ApoE-/- mouse livers compared with that in WT mouse livers., Conclusions: These findings suggest that in an atherosclerotic mouse model, atherosclerosis can mirror intrahepatic immunity, particularly activating liver NK and T cells through IL-15 production, thereby exacerbating hepatic damage. The upregulation of IL-15 expression is associated with IRF-1 overexpression., 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.)- Published
- 2024
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394. Early total reconstruction for a Gustilo type IIIB open forearm fracture associated with avulsion injury of multiple extensor tendons: A case report.
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Nohmi S, Suzuki M, Sakamoto Y, Nakano R, and Kamada H
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Gustilo type IIIB open forearm fractures associated with avulsion injuries of multiple extensor tendons are difficult to reconstruct. Not only are bones, nerves, blood vessels, and soft tissues injured, but also tendons directly related to hand function. A 74-year-old man sustained an injury to his dominant right hand after being hit by a heavy pulley. The patient was diagnosed with a Gustilo type IIIB open forearm fracture, and multiple extensor tendons were avulsed from the musculotendinous junction. On the day of injury, the radius was fixed using a volar locking plate, and the ulnar head was fixed to the radius. On the fourth day, the avulsed extensor tendons were reconstructed using tendon transfer, and the exposed tendons and soft tissue defects were covered using a free anterolateral thigh flap on the seventh day. Three years after the injury, the patient had no difficulty in performing activities of daily living. Single-stage reconstruction allows for early rehabilitation. We believe that the more complex and severe the injury is, the more we should aim to repair the injured tissue as early as possible, that is, early total reconstruction., Competing Interests: 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., (© 2024 The Authors.)
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- 2024
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395. Anti-Donor T-Cell Responses Are Not Necessarily Attenuated During Cytomegalovirus Infection in Kidney Transplant Recipients.
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Ide K, Tanaka A, Tanaka Y, Nakano R, Sakai H, Ono K, Mochizuki T, Arata R, Hakoda K, Imaoka K, Fukuhara S, Bekki T, Tahara H, Ohira M, and Ohdan H
- Subjects
- Humans, Male, Female, Middle Aged, Adult, Immunosuppressive Agents therapeutic use, T-Lymphocytes immunology, Tissue Donors, Cytomegalovirus immunology, Lymphocyte Culture Test, Mixed, Kidney Transplantation adverse effects, Cytomegalovirus Infections immunology
- Abstract
Background: Cytomegalovirus (CMV), the most common opportunistic infection of kidney transplantation (KT), is preventable by prophylactic and preemptive antiviral drugs in CMV-immunoglobulin (Ig)G-positive donors. Our preemptive therapy optimized immunosuppressive doses based on mixed lymphocyte response (MLR) results, regardless of preoperative CMV-IgG serostatus pairing. This study used the MLR to compare the anti-donor T-cell responses between CMV antigenemia-positive and -negative cases., Methods: One hundred patients underwent KT using a cyclosporine (CsA)-based immunosuppressive regimen at Hiroshima University Hospital. CMV antigenemia-positive cells were defined as 4/50,000 CMVpp65-positive cells. T-cell responses to allo-antigens were measured using MLR assays to evaluate patients' anti-donor immune reactivity. After analyzing the proliferation of CD4
+ and CD8+ T-cell subsets, the stimulation indices of CD4+ or CD8+ T cells were quantified. The study used no prisoners, and the participants were neither coerced nor paid. The manuscript was created in compliance with the Helsinki Congress and the Declaration of Istanbul., Results: Forty-three patients tested positive for CMV antigenemia within 3 months after KT. No significant differences were found between the CMV antigenemia-positive and -negative groups in the stimulation indices for CD4+ and CD8+ T-cell responses to anti-donor stimulation. However, T-cell responses to third-party stimuli during the postoperative month 1 were significantly less in the CMV antigenemia-positive than -negative group., Conclusion: Anti-donor T-cell responses are not necessarily attenuated during CMV infection in KT recipients. In CMV-infected KT recipients, caution should be exercised against inadvertent dose reduction of immunosuppressants., 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.)- Published
- 2024
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396. Donor Age Correlates With Liver-Resident Natural Killer Cell Activity in Adoptive Immunotherapy Using Donor Liver Natural Killer Cells in Liver Transplantation.
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Ohira M, Imaoka K, Bekki T, Sato K, Imaoka Y, Nakano R, Yano T, Doskali M, Shimizu S, Chogahara I, Sato S, Nakamura M, Tanaka Y, and Ohdan H
- Subjects
- Humans, Middle Aged, Adult, Male, Female, Young Adult, Age Factors, Living Donors, Liver Transplantation, Killer Cells, Natural immunology, Immunotherapy, Adoptive methods, Liver immunology
- Abstract
Background: Natural killer (NK) cells are involved in innate immunity and have been reported to play an important role in hepatocellular carcinoma recurrence and post-liver transplantation (LT) infection. However, the relationship between donor age and liver-resident NK cell activity remains to be elucidated., Methods: We successfully performed NK cell immunotherapy in 19 living donor LT recipients to prevent post-LT bloodstream infections. Liver mononuclear cells (LMNCs) were collected from the liver graft perfusate and stimulated with interleukin 2 for 3 days. Liver-resident NK cells were analyzed using flow cytometry and a chromium release assay before and after cell culture., Results: The median donor age was 44 years (range, 24-64 years). The graft weight was 492 g (range, 338-642 g), and the median number of LMNCs was 584 million cells (range, 240-1472 million cells). The proportion of NK cells before and after culture was 22% and 33%, respectively. A significant correlation was found between graft weight and the number of LMNCs. However, no correlation was found between donor age and the number or percentage of NK cells in the liver. Moreover, donor age showed a significant inverse correlation with NKp46 and NKp44 expression before culture and with NKp44, tumor necrosis factor-related apoptosis-inducing ligand, and CD69 expression after culture., Conclusion: A significant inverse correlation was observed between donor age and NK cell activity in the liver. This information may be useful for cell therapy during LT., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have seemed to influence in the work in this paper., (Copyright © 2024 Elsevier Inc. All rights reserved.)
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- 2024
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397. Association of Abdominal Aortic Calcification With the Postoperative Metabolic Syndrome Components After Liver Transplantation.
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Bekki T, Ohira M, Chogahara I, Imaoka K, Imaoka Y, Nakano R, Sakai H, Tahara H, Ide K, Tanaka Y, Kobayashi T, and Ohdan H
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- Humans, Male, Female, Middle Aged, Risk Factors, Postoperative Complications epidemiology, Adult, Retrospective Studies, Vascular Calcification epidemiology, Liver Neoplasms surgery, Carcinoma, Hepatocellular surgery, Metabolic Syndrome epidemiology, Liver Transplantation adverse effects, Aorta, Abdominal surgery, Aorta, Abdominal diagnostic imaging, Aorta, Abdominal pathology
- Abstract
Background: This study aimed to assess the risk factors for components of metabolic syndrome, such as diabetes mellitus, hypertension, and dyslipidemia, more than a year after liver transplantation., Methods: This study included 164 patients with liver failure secondary to acute and chronic liver disease or hepatocellular carcinoma who underwent liver transplantation between 2000 and 2019. Univariate and multivariate analyses were performed to identify the risk factors associated with metabolic syndrome components after liver transplantation., Results: The median follow-up period was 10.5 years. Of the 164 patients who underwent liver transplantation, 144 (87.8%) developed components of metabolic syndrome after liver transplantation. The most common cause of liver failure was hepatitis C virus infection (34.1%). The incidence of hepatocellular carcinoma was 36.0%. In univariate analysis, preoperative diabetes mellitus was a significantly more common component of metabolic syndrome than the others. In multivariate analysis, preoperative abdominal aortic calcification was a risk factor for the new onset of all components of metabolic syndrome after liver transplantation, despite the varying degree of calcification at risk of development (odds ratio for diabetes mellitus = 3.487, P = .0069; odds ratio for hypertension = 2.914, P = .0471; odds ratio for dyslipidemia = 3.553, P = .0030)., Conclusions: Preoperative abdominal aortic calcification was significantly associated with the development of each metabolic syndrome component after liver transplantation., Competing Interests: Declaration of competing interest All the authors declare 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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398. Myocardial metastasis from ZEB1- and TWIST-positive spindle cell carcinoma of the esophagus: A case report.
- Author
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Shibata Y, Ohmura H, Komatsu K, Sagara K, Matsuyama A, Nakano R, and Baba E
- Subjects
- Humans, Male, Middle Aged, Myocardium, Zinc Finger E-box-Binding Homeobox 1, Esophageal Neoplasms, Esophageal Squamous Cell Carcinoma, Esophageal Stenosis, Heart Neoplasms diagnostic imaging, Lung Neoplasms, Melanoma
- Abstract
Background: Metastatic cardiac tumors are known to occur more frequently than primary cardiac tumors, however, they often remain asymptomatic and are commonly discovered on autopsy. Malignant tumors with a relatively high frequency of cardiac metastasis include mesothelioma, melanoma, lung cancer, and breast cancer, whereas reports of esophageal cancer with cardiac metastasis are rare., Case Summary: The case of a 60-year-old man who complained of dysphagia is presented. Upper gastrointestinal endoscopy showed a submucosal tumor-like elevated lesion in the esophagus causing stenosis. Contrast-enhanced computed tomography showed left atrial compression due to the esophageal tumor, multiple liver and lung metastases, and a left pleural effusion. Pathological examination of a biopsy specimen from the esophageal tumor showed spindle-shaped cells, raising suspicion of esophageal sarcoma. The disease progressed rapidly, and systemic chemotherapy was deemed necessary, however, due to his poor general condition, administration of cytotoxic agents was considered difficult. Given his high Combined Positive Score, nivolumab was administered, however, the patient soon died from the disease. The autopsy confirmed spindle cell carcinoma (SCC) of the esophagus and cardiac metastasis with similar histological features. Cancer stem cell markers, ZEB1 and TWIST, were positive in both the primary tumor and the cardiac metastasis., Conclusion: To the best of our knowledge, there have been no prior reports of cardiac metastasis of esophageal SCC. This case highlights our experience with a patient with esophageal SCC who progressed rapidly and died from the disease, with the autopsy examination showing cardiac metastasis., Competing Interests: Conflict-of-interest statement: Hirofumi Ohmura has received speakers’ bureau from Ono Pharmaceutical; Eishi Baba has received honoraria from Ono Pharmaceutical and Bristol-Myers Squibb; All other authors have no conflicts of interest to report., (©The Author(s) 2024. Published by Baishideng Publishing Group Inc. All rights reserved.)
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- 2024
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399. Erythema gyratum repens-like presentation of folliculotropic mycosis fungoides.
- Author
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Hida Y, Nakano R, Yuasa R, Maehama K, Yamashita M, and Urano Y
- Subjects
- Humans, Male, Female, Diagnosis, Differential, Middle Aged, Mycosis Fungoides pathology, Mycosis Fungoides diagnosis, Erythema pathology, Erythema etiology, Skin Neoplasms pathology, Skin Neoplasms diagnosis
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- 2024
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400. Nonalcoholic Fatty Liver Disease in Japan Continue to Increase Even after the Launch of Specific Health Checkups.
- Author
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Sato A, Oomori Y, Nakano R, and Matsuura T
- Subjects
- Male, Humans, Female, Risk Factors, Japan epidemiology, Obesity epidemiology, Non-alcoholic Fatty Liver Disease diagnostic imaging, Non-alcoholic Fatty Liver Disease epidemiology, Diabetes Mellitus, Type 2 epidemiology
- Abstract
Objective To examine the trends and relationships between nonalcoholic fatty liver disease (NAFLD) and hypertension, type 2 diabetes mellitus (T2DM), and dyslipidemia from fiscal year (FY) 2008, when specific health checkups (SHCs) were initiated in Japan, to FY 2019 and the relationship between NAFLD trends and dietary nutrition. Methods A total of 48,332 participants (25,121 men and 23,211 women) diagnosed with NAFLD who underwent health checkups, including ultrasonography, from FY 2008 to FY 2019 were included. A fatty liver was diagnosed using ultrasonography. The dietary nutrient intake status was based on data from the National Health and Nutrition Survey, Japan. Results Over 12 years, NAFLD prevalence increased from 26.9% to 43.1% in men (p<0.0001) and from 9.9% to 17.9% in women (p<0.0001) in all body mass index (BMI) groups except for obese II (according to the World Health Organization Asia-Pacific criteria) in men and underweight in women and almost all age groups. T2DM prevalence increased in men (from 9.0% to 10.7%, p=0.0234), and obesity and higher waist circumference rates increased in women (from 16.0% to 18.0%, p=0.0059 and from 8.1% to 10%, respectively, p=0.0006). The dietary nutrient intake increased with regard to the total fat, fat/energy ratio, saturated fatty acids, monounsaturated fatty acids, and n6/n3 fatty acid ratio in both men and women, and these nutrient trends were correlated with NAFLD prevalence (all p≤0.0005). Conclusion In Japan, NAFLD increased in both men and women regardless of the BMI and age, even after starting SHCs. An unbalanced fat intake may be one of the major reasons for this increase.
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- 2024
- Full Text
- View/download PDF
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