1
|
Ota Y, Yasunaga K, Mahazu S, Prah I, Nagai S, Hayashi T, Suzuki M, Yoshida M, Hoshino Y, Akeda Y, Suzuki T, Gu Y, Saito R. Comparative evaluation of analytical pipelines for illumina short- and nanopore long-read 16S rRNA gene amplicon sequencing with mock microbial communities. J Microbiol Methods 2024; 221:106929. [PMID: 38599390 DOI: 10.1016/j.mimet.2024.106929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 04/04/2024] [Accepted: 04/06/2024] [Indexed: 04/12/2024]
Abstract
Utility of a recently developed long-read pipeline, Emu, was assessed using an expectation-maximization algorithm for accurate read classification. We compared it to conventional short- and long-read pipelines, using well-characterized mock bacterial samples. Our findings highlight the necessity of appropriate data-processing for taxonomic descriptions, expanding our understanding of the precise microbiome.
Collapse
Affiliation(s)
- Yusuke Ota
- Department of Molecular Microbiology and Immunology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Kei Yasunaga
- Department of Molecular Microbiology and Immunology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Samiratu Mahazu
- Department of Molecular Microbiology and Immunology, Tokyo Medical and Dental University, Tokyo, Japan; Department of Parasitology and Tropical Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Isaac Prah
- Department of Molecular Microbiology and Immunology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Satoshi Nagai
- Fisheries Technology Institute, Japan Fisheries Research and Education Agency, Kanagawa, Japan
| | - Takaya Hayashi
- Department of Molecular Virology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Masato Suzuki
- Antimicrobial Resistance Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Mitsunori Yoshida
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Yoshihiko Hoshino
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Yukihiro Akeda
- Department of Bacteriology I, National Institute of Infectious Diseases, Tokyo, Japan
| | - Toshihiko Suzuki
- Department of Bacterial Pathogenesis, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yoshiaki Gu
- Department of Infectious Diseases, Tokyo Medical and Dental University, Tokyo, Japan
| | - Ryoichi Saito
- Department of Molecular Microbiology and Immunology, Tokyo Medical and Dental University, Tokyo, Japan.
| |
Collapse
|
2
|
Kubo T, Sunami K, Koyama T, Kitami M, Fujiwara Y, Kondo S, Yonemori K, Noguchi E, Morizane C, Goto Y, Maejima A, Iwasa S, Hamaguchi T, Kawai A, Namikawa K, Arakawa A, Sugiyama M, Ohno M, Yoshida T, Hiraoka N, Yoshida A, Yoshida M, Nishino T, Furukawa E, Narushima D, Nagai M, Kato M, Ichikawa H, Fujiwara Y, Kohno T, Yamamoto N. The impact of rare cancer and early-line treatments on the benefit of comprehensive genome profiling-based precision oncology. ESMO Open 2024; 9:102981. [PMID: 38613908 PMCID: PMC11033064 DOI: 10.1016/j.esmoop.2024.102981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 03/04/2024] [Accepted: 03/04/2024] [Indexed: 04/15/2024] Open
Abstract
BACKGROUND Comprehensive genome profiling (CGP) serves as a guide for suitable genomically matched therapies for patients with cancer. However, little is known about the impact of the timing and types of cancer on the therapeutic benefit of CGP. MATERIALS AND METHODS A single hospital-based pan-cancer prospective study (TOP-GEAR; UMIN000011141) was conducted to examine the benefit of CGP with respect to the timing and types of cancer. Patients with advanced solid tumors (>30 types) who either progressed with or without standard treatments were genotyped using a single CGP test. The subjects were followed up for a median duration of 590 days to examine therapeutic response, using progression-free survival (PFS), PFS ratio, and factors associated with therapeutic response. RESULTS Among the 507 patients, 62 (12.2%) received matched therapies with an overall response rate (ORR) of 32.3%. The PFS ratios (≥1.3) were observed in 46.3% (19/41) of the evaluated patients. The proportion of subjects receiving such therapies in the rare cancer cohort was lower than that in the non-rare cancer cohort (9.6% and 17.4%, respectively; P = 0.010). However, ORR of the rare cancer patients was higher than that in the non-rare cancer cohort (43.8% and 20.0%, respectively; P = 0.046). Moreover, ORR of matched therapies in the first or second line after receiving the CGP test was higher than that in the third or later lines (62.5% and 21.7%, respectively; P = 0.003). Rare cancer and early-line treatment were significantly and independently associated with ORR of matched therapies in multivariable analysis (P = 0.017 and 0.004, respectively). CONCLUSION Patients with rare cancer preferentially benefited from tumor mutation profiling by increasing the chances of therapeutic response to matched therapies. Early-line treatments after profiling increase the therapeutic benefit, irrespective of tumor types.
Collapse
Affiliation(s)
- T Kubo
- Department of Laboratory Medicine, National Cancer Center Hospital, Tokyo; Department of Clinical Genomics, National Cancer Center Research Institute, Tokyo
| | - K Sunami
- Department of Laboratory Medicine, National Cancer Center Hospital, Tokyo; Division of Genome Biology, National Cancer Center Research Institute, Tokyo
| | - T Koyama
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo
| | - M Kitami
- Department of Laboratory Medicine, National Cancer Center Hospital, Tokyo
| | - Y Fujiwara
- Department of Thoracic Oncology, National Cancer Center Hospital, Tokyo; Department of Thoracic Oncology, Aichi Cancer Center Hospital, Aichi
| | - S Kondo
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo; Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital, Tokyo
| | - K Yonemori
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo; Department of Medical Oncology, National Cancer Center Hospital, Tokyo
| | - E Noguchi
- Department of Medical Oncology, National Cancer Center Hospital, Tokyo
| | - C Morizane
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital, Tokyo
| | - Y Goto
- Department of Thoracic Oncology, National Cancer Center Hospital, Tokyo
| | - A Maejima
- Department of Medical Oncology, National Cancer Center Hospital, Tokyo; Department of Urology, National Cancer Center Hospital, Tokyo
| | - S Iwasa
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo; Department of Gastrointestinal Medical Oncology, National Cancer Center Hospital, Tokyo
| | - T Hamaguchi
- Department of Medical Oncology, Saitama Medical University International Medical Center, Saitama
| | - A Kawai
- Department of Musculoskeletal Oncology and Rehabilitation, National Cancer Center Hospital, Tokyo
| | - K Namikawa
- Department of Dermatologic Oncology, National Cancer Center Hospital, Tokyo
| | - A Arakawa
- Department of Pediatric Oncology, National Cancer Center Hospital, Tokyo
| | - M Sugiyama
- Department of Pediatric Oncology, National Cancer Center Hospital, Tokyo
| | - M Ohno
- Department of Neurosurgery and Neuro-Oncology, National Cancer Center Hospital, Tokyo
| | - T Yoshida
- Department of Genetic Services and Medicine, National Cancer Center Hospital, Tokyo
| | - N Hiraoka
- Department of Diagnostic Pathology, National Cancer Center Hospital, Tokyo
| | - A Yoshida
- Department of Diagnostic Pathology, National Cancer Center Hospital, Tokyo
| | - M Yoshida
- Department of Diagnostic Pathology, National Cancer Center Hospital, Tokyo
| | - T Nishino
- Department of Laboratory Medicine, National Cancer Center Hospital, Tokyo
| | - E Furukawa
- Division of Bioinformatics, National Cancer Center Research Institute, Tokyo
| | - D Narushima
- Division of Bioinformatics, National Cancer Center Research Institute, Tokyo
| | - M Nagai
- Division of Bioinformatics, National Cancer Center Research Institute, Tokyo
| | - M Kato
- Division of Bioinformatics, National Cancer Center Research Institute, Tokyo
| | - H Ichikawa
- Department of Clinical Genomics, National Cancer Center Research Institute, Tokyo; Division of Translational Genomics, National Cancer Center Exploratory Oncology Research & Clinical Trial Center, Tokyo, Japan
| | - Y Fujiwara
- Department of Medical Oncology, National Cancer Center Hospital, Tokyo
| | - T Kohno
- Division of Genome Biology, National Cancer Center Research Institute, Tokyo; Division of Translational Genomics, National Cancer Center Exploratory Oncology Research & Clinical Trial Center, Tokyo, Japan
| | - N Yamamoto
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo.
| |
Collapse
|
3
|
Kouzu K, Tsujimoto H, Ishinuki T, Shinji S, Shinkawa H, Tamura K, Uchino M, Ohge H, Shimizu J, Haji S, Mohri Y, Yamashita C, Kitagawa Y, Suzuki K, Kobayashi M, Kobayashi M, Hanai Y, Nobuhara H, Imaoka H, Yoshida M, Mizuguchi T, Mayumi T, Kitagawa Y. The effectiveness of fascial closure with antimicrobial-coated sutures in preventing incisional surgical site infections in gastrointestinal surgery: a systematic review and meta-analysis. J Hosp Infect 2024; 146:174-182. [PMID: 37734678 DOI: 10.1016/j.jhin.2023.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 09/11/2023] [Accepted: 09/11/2023] [Indexed: 09/23/2023]
Abstract
The aim of this study was to conduct a systematic review and meta-analysis of the efficacy of fascial closure using antimicrobial-sutures specifically for the prevention of surgical site infections (SSIs) in gastrointestinal surgery, as part of the revision of the SSI prevention guidelines of the Japanese Society of Surgical Infectious Diseases (JSSI). We searched CENTRAL, PubMed and ICHUSHI-Web in May 2023, and included randomized controlled trials (RCTs) comparing antimicrobial-coated and non-coated sutures for fascial closure in gastrointestinal surgery (PROSPERO No. CRD42023430377). Three authors independently screened the RCTs. We assessed the risk of bias and the GRADE criteria for the extracted data. The primary outcome was incisional SSI and the secondary outcomes were abdominal wall dehiscence and the length of postoperative hospital stay. This study was supported partially by the JSSI. A total of 10 RCTs and 5396 patients were included. The use of antimicrobial-coated sutures significantly lowered the risk of incisional SSIs compared with non-coated suture (risk ratio: 0.79, 95% confidence intervals: 0.64-0.98). In subgroup analyses, antimicrobial-coated sutures reduced the risk of SSIs for open surgeries, and when monofilament sutures were used. Antimicrobial-coated sutures did not reduce the incidence of abdominal wall dehiscence and the length of hospital stay compared with non-coated sutures. The certainty of the evidence was rated as moderate according to the GRADE criteria, because of risk of bias. In conclusion, the use of antimicrobial-coated sutures for fascial closure in gastrointestinal surgery is associated with a significantly lower risk of SSI than non-coated sutures.
Collapse
Affiliation(s)
- K Kouzu
- Department of Surgery, National Defense Medical College, Japan
| | - H Tsujimoto
- Department of Surgery, National Defense Medical College, Japan.
| | - T Ishinuki
- Department of Nursing, Division of Surgical Science, Sapporo Medical University, Japan
| | - S Shinji
- Department of Gastrointestinal and Hepato-Biliary-Pancreatic Surgery, Nippon Medical School, Japan
| | - H Shinkawa
- Department of Hepatobiliary-Pancreatic Surgery, Osaka Metropolitan University Graduate School of Medicine, Japan
| | - K Tamura
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Japan
| | - M Uchino
- Department of Gastroenterological Surgery, Division of Inflammatory Bowel Disease, Hyogo Medical University, Japan
| | - H Ohge
- Department of Infectious Diseases, Hiroshima University Hospital, Japan
| | - J Shimizu
- Department of Surgery, Toyonaka Municipal Hospital, Japan
| | - S Haji
- Department of Surgery, Soseikai General Hospital, Japan
| | - Y Mohri
- Department of Surgery, Mie Prefectural General Medical Center, Japan
| | - C Yamashita
- Department of Anesthesiology and Critical Care Medicine, Fujita Health University School of Medicine, Japan
| | - Y Kitagawa
- Department of Infection Control, National Center for Geriatrics and Gerontology, Japan
| | - K Suzuki
- Department of Infectious Disease Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - M Kobayashi
- Department of Anesthesiology, Hokushinkai Megumino Hospital, Japan
| | - M Kobayashi
- Laboratory of Clinical Pharmacokinetics, School of Pharmacy, Kitasato University, Japan
| | - Y Hanai
- Department of Clinical Pharmacy, Faculty of Pharmaceutical Sciences, Toho University, Japan
| | - H Nobuhara
- Department of Dentistry, Hiroshima Prefectural Hospital, Japan
| | - H Imaoka
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Japan
| | - M Yoshida
- Department of Hepato-Biliary-Pancreatic and Gastrointestinal Surgery, International University of Health and Welfare, School of Medicine, Japan
| | - T Mizuguchi
- Department of Nursing, Division of Surgical Science, Sapporo Medical University, Japan
| | - T Mayumi
- Department of Intensive Care Unit, Japan Community Healthcare Organization Chukyo Hospital, Japan
| | - Y Kitagawa
- Keio University, School of Medicine, Japan
| |
Collapse
|
4
|
Kin F, Itoh K, Bando T, Shinohara K, Oyama N, Terakado A, Yoshida M, Sumida S. Impact of avalanche type of transport on internal transport barrier formation in tokamak plasmas. Sci Rep 2023; 13:19748. [PMID: 37957265 PMCID: PMC10643559 DOI: 10.1038/s41598-023-46978-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 11/07/2023] [Indexed: 11/15/2023] Open
Abstract
In magnetic fusion plasmas, a transport barrier is essential to improve the plasma confinement. The key physics behind the formation of a transport barrier is the suppression of the micro-scale turbulent transport. On the other hand, long-range transport events, such as avalanches, has been recognized to play significant roles for global profile formations. In this study, we observed the impact of the avalanche-type of transport on the formation of a transport barrier for the first time. The avalanches are found to inhibit the formation of the internal transport barrier (ITB) observed in JT-60U tokamak. We found that (1) ITBs do not form in the presence of avalanches but form under the disappearance of avalanches, (2) the surface integral of avalanche-driven heat fluxe is comparable to the time rate change of stored energy retained at the ITB onset, (3) the mean E × B flow shear is accelerated via the ion temperature gradient that is not sustained under the existence of avalanches, and (4) after the ITB formation, avalanches are damped inside the ITB, while they remain outside the ITB.
Collapse
Affiliation(s)
- F Kin
- National Institutes for Quantum Science and Technology, Naka, 311-0193, Japan.
- Institute of Advanced Energy, Kyoto University, Uji, 611-0011, Japan.
| | - K Itoh
- Frontier Research Institute, Chubu University, Kasugai, 487-8501, Japan
- Research Center for Plasma Turbulence, Kyushu University, Kasuga, 816-8580, Japan
| | - T Bando
- Toyohashi University of Technology, Toyohashi, 441-8580, Japan
| | - K Shinohara
- National Institutes for Quantum Science and Technology, Naka, 311-0193, Japan
- The University of Tokyo, Kashiwa, 277-8561, Japan
| | - N Oyama
- National Institutes for Quantum Science and Technology, Naka, 311-0193, Japan
| | - A Terakado
- National Institutes for Quantum Science and Technology, Naka, 311-0193, Japan
| | - M Yoshida
- National Institutes for Quantum Science and Technology, Naka, 311-0193, Japan
| | - S Sumida
- National Institutes for Quantum Science and Technology, Naka, 311-0193, Japan
| |
Collapse
|
5
|
Suzuki T, Boonyaleka K, Okano T, Iida T, Yoshida M, Fukano H, Hoshino Y, Iwakura Y, Ablordey AS, Ashida H. Inflammasome-triggered IL-18 controls skin inflammation in the progression of Buruli ulcer. PLoS Pathog 2023; 19:e1011747. [PMID: 37910490 PMCID: PMC10619818 DOI: 10.1371/journal.ppat.1011747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 10/10/2023] [Indexed: 11/03/2023] Open
Abstract
Buruli ulcer is an emerging chronic infectious skin disease caused by Mycobacterium ulcerans. Mycolactone, an exotoxin produced by the bacterium, is the only identified virulence factor so far, but the functions of this toxin and the mechanisms of disease progression remain unclear. By interfering Sec61 translocon, mycolactone inhibits the Sec61-dependent co-translational translocation of newly synthesized proteins, such as induced cytokines and immune cell receptors, into the endoplasmic reticulum. However, in regard to IL-1β, which is secreted by a Sec61-independent mechanism, mycolactone has been shown to induce IL-1β secretion via activation of inflammasomes. In this study, we clarified that cytokine induction, including that of IL-1β, in infected macrophages was suppressed by mycolactone produced by M. ulcerans subsp. shinshuense, despite the activation of caspase-1 through the inflammasome activation triggered in a manner independent of mycolactone. Intriguingly, mycolactone suppressed the expression of proIL-1β as well as TNF-α at the transcriptional level, suggesting that mycolactone of M. ulcerans subsp. shinshuense may exert additional inhibitory effect on proIL-1β expression. Remarkably, constitutively produced IL-18 was cleaved and mature IL-18 was actually released from macrophages infected with the causative mycobacterium. IL-18-deficient mice infected subcutaneously with M. ulcerans exhibited exacerbated skin inflammation during the course of disease progression. On the other hand, IL-1β controls bacterial multiplication in skin tissues. These results provide information regarding the mechanisms and functions of the induced cytokines in the pathology of Buruli ulcer.
Collapse
Affiliation(s)
- Toshihiko Suzuki
- Department of Bacterial Pathogenesis, Infection and Host Response, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kotchakorn Boonyaleka
- Department of Bacterial Pathogenesis, Infection and Host Response, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Tokuju Okano
- Department of Bacterial Pathogenesis, Infection and Host Response, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Tamako Iida
- Department of Bacterial Pathogenesis, Infection and Host Response, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Mitsunori Yoshida
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Hanako Fukano
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Yoshihiko Hoshino
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Yoichiro Iwakura
- Research Institute for Biomedical Sciences, Tokyo University of Science, Noda, Chiba, Japan
| | - Anthony S. Ablordey
- Department of Bacteriology, Noguchi Memorial Institute for Medical Research, University of Ghana, Accra, Ghana
| | - Hiroshi Ashida
- Department of Bacterial Pathogenesis, Infection and Host Response, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| |
Collapse
|
6
|
Komine T, Ihara H, Inohana M, Kwok JC, Shimizu A, Terasawa T, Miyazaki A, Srivorakul S, Iwao H, Harada S, Yoshida M, Hoshino Y, Kurata O, Fukano H, Wada S. Non-tuberculous mycobacterial disease associated with Mycobacterium montefiorense in salamanders. Front Vet Sci 2023; 10:1248288. [PMID: 37954664 PMCID: PMC10637390 DOI: 10.3389/fvets.2023.1248288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 09/22/2023] [Indexed: 11/14/2023] Open
Abstract
Introduction Mycobacterium montefiorense is one of the causes of non-tuberculous mycobacterial infections in moray eels and salamanders. Although M. montefiorense infection could be a threat to salamanders, little information is available regarding this pathogen and associated infection. This study aimed to provide fundamental information regarding M. montefiorense and its infection in salamanders. Methods Nine M. montefiorense strains isolated from three species of salamanders, namely, Japanese black salamander (Hynobius nigrescens), Hakuba salamander (H. hidamontanus), and Tohoku hynobiid salamander (H. lichenatus), between 2010 and 2018, were characterized based on phenotypic and genetic examination. We also pathologically observed salamanders infected with the M. montefiorense strains, including Hakuba salamanders and Tohoku hynobiid salamanders. Results The microbiological and chemical characteristics of the M. montefiorense salamander and an eel strain (reference strain) matched. Susceptibility testing for antimicrobials suggested that clarithromycin may be effective. Regarding disinfectants, phtharal, peracetic acid, glutaral, sodium hypochlorite, and benzalkonium chloride may be effective. Phylogenetic analyses revealed that the strains isolated from salamanders in 2014 and 2018 were genetically closely related, which could indicate an outbreak. The main gross findings in infected salamanders include skin ulcerative lesions or nodules in the enlarged liver. Microscopically, multifocal to coalescent granulomatous lesions composed of massive macrophages containing numerous acid-fast bacilli were prominently observed in the liver. Conclusion This study contributes to our understanding of the genetic diversity and phenotypic characteristics of M. montefiorense, as well as the pathology of the infection.
Collapse
Affiliation(s)
- Takeshi Komine
- Laboratory of Aquatic Medicine, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Musashino, Tokyo, Japan
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Higashimurayama, Tokyo, Japan
| | - Hyogo Ihara
- Laboratory of Aquatic Medicine, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Musashino, Tokyo, Japan
| | - Mari Inohana
- Laboratory of Aquatic Medicine, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Musashino, Tokyo, Japan
| | - Jennifer Caroline Kwok
- Retinal Disease Studies Facility, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Akane Shimizu
- Laboratory of Aquatic Medicine, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Musashino, Tokyo, Japan
| | - Tsumugi Terasawa
- Laboratory of Aquatic Medicine, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Musashino, Tokyo, Japan
| | - Ayaka Miyazaki
- Laboratory of Aquatic Medicine, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Musashino, Tokyo, Japan
| | - Saralee Srivorakul
- Center of Veterinary Diagnosis and Technology Transfer, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, Thailand
| | | | | | - Mitsunori Yoshida
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Higashimurayama, Tokyo, Japan
| | - Yoshihiko Hoshino
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Higashimurayama, Tokyo, Japan
| | - Osamu Kurata
- Laboratory of Aquatic Medicine, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Musashino, Tokyo, Japan
| | - Hanako Fukano
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Higashimurayama, Tokyo, Japan
| | - Shinpei Wada
- Laboratory of Aquatic Medicine, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Musashino, Tokyo, Japan
| |
Collapse
|
7
|
Komiya K, Yoshida M, Uchida S, Takikawa S, Yamasue M, Matsumoto T, Morishige Y, Aono A, Hiramatsu K, Yamaoka Y, Nishizono A, Ato M, Kadota JI, Mitarai S. Massive and Lengthy Clonal Nosocomial Expansion of Mycobacterium abscessus subsp. massiliense among Patients Who Are Ventilator Dependent without Cystic Fibrosis. Microbiol Spectr 2023; 11:e0490822. [PMID: 37314340 PMCID: PMC10433864 DOI: 10.1128/spectrum.04908-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 05/30/2023] [Indexed: 06/15/2023] Open
Abstract
Nontuberculous mycobacterial infections are generally believed to be independently acquired from the environment. Although person-to-person transmission of nontuberculous mycobacteria, especially Mycobacterium abscessus subsp. massiliense, is a serious concern among individuals with cystic fibrosis (CF), evidence of its spread among patients without CF has never been established. We unexpectedly found a number of M. abscessus subsp. massiliense cases among patients without CF in a hospital. This study aimed to define the mechanism of M. abscessus subsp. massiliense infection among patients who were ventilator dependent and without CF who had progressive neurodegenerative diseases in our long-term care wards from 2014 to 2018 during suspected nosocomial outbreaks. We conducted whole-genome sequencing of M. abscessus subsp. massiliense isolates from 52 patients and environmental samples. Potential opportunities for in-hospital transmission were analyzed using epidemiological data. M. abscessus subsp. massiliense was isolated from one air sample obtained near a patient without CF who was colonized with M. abscessus subsp. massiliense but not from other potential sources. Phylogenetic analysis of the strains from these patients and the environmental isolate revealed clonal expansion of near-identical M. abscessus subsp. massiliense isolates, with the isolates generally differing by fewer than 22 single nucleotide polymorphisms (SNPs). Approximately half of the isolates differed by fewer than nine SNPs, indicating interpatient transmission. Whole-genome sequencing revealed a potential nosocomial outbreak among patients who were ventilator dependent and without CF. IMPORTANCE The isolation of M. abscessus subsp. massiliense from the air, but not from environmental fluid samples, may suggest airborne transmission. This was the first report to demonstrate person-to-person transmission of M. abscessus subsp. massiliense, even among patients without CF. M. abscessus subsp. massiliense may spread among patients who are ventilator dependent without CF through direct or indirect in-hospital transmission. The current infection control measures should address potential transmission among patients without CF, particularly in facilities that treat patients who are ventilator dependent and patients with preexisting chronic pulmonary diseases, such as CF.
Collapse
Affiliation(s)
- Kosaku Komiya
- Respiratory Medicine and Infectious Diseases, Oita University Faculty of Medicine, Yufu, Oita, Japan
- Research Center for GLOBAL and LOCAL Infectious Diseases, Oita University Faculty of Medicine, Yufu, Oita, Japan
| | - Mitsunori Yoshida
- Department of Mycobacteriology, Leprosy Research Centre, National Institute of Infectious Diseases, Higashimurayama, Tokyo, Japan
| | - Sonoe Uchida
- Internal Medicine, National Hospital Organization Nishi-Beppu Hospital, Beppu, Oita, Japan
- Respiratory Medicine, Bungoono City Hospital, Bungoono, Oita, Japan
| | - Shuichi Takikawa
- Internal Medicine, National Hospital Organization Nishi-Beppu Hospital, Beppu, Oita, Japan
| | - Mari Yamasue
- Respiratory Medicine and Infectious Diseases, Oita University Faculty of Medicine, Yufu, Oita, Japan
- Internal Medicine, National Hospital Organization Nishi-Beppu Hospital, Beppu, Oita, Japan
| | - Takashi Matsumoto
- Department of Environmental and Preventive Medicine, Oita University Faculty of Medicine, Yufu, Oita, Japan
| | - Yuta Morishige
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Tokyo, Japan
| | - Akio Aono
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Tokyo, Japan
| | - Kazufumi Hiramatsu
- Respiratory Medicine and Infectious Diseases, Oita University Faculty of Medicine, Yufu, Oita, Japan
- Research Center for GLOBAL and LOCAL Infectious Diseases, Oita University Faculty of Medicine, Yufu, Oita, Japan
| | - Yoshio Yamaoka
- Research Center for GLOBAL and LOCAL Infectious Diseases, Oita University Faculty of Medicine, Yufu, Oita, Japan
- Department of Environmental and Preventive Medicine, Oita University Faculty of Medicine, Yufu, Oita, Japan
| | - Akira Nishizono
- Research Center for GLOBAL and LOCAL Infectious Diseases, Oita University Faculty of Medicine, Yufu, Oita, Japan
- Department of Microbiology, Oita University Faculty of Medicine, Oita, Japan
| | - Manabu Ato
- Department of Mycobacteriology, Leprosy Research Centre, National Institute of Infectious Diseases, Higashimurayama, Tokyo, Japan
| | - Jun-ichi Kadota
- Respiratory Medicine and Infectious Diseases, Oita University Faculty of Medicine, Yufu, Oita, Japan
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, the Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Kiyose, Tokyo, Japan
| |
Collapse
|
8
|
Kaji M, Namkoong H, Nagao G, Azekawa S, Nakagawara K, Tanaka H, Morita A, Asakura T, Kamata H, Uwamino Y, Yoshida M, Fukunaga K, Hasegawa N. Nasopharyngeal Mycobacterium abscessus Infection: A Case Report and Literature Review. Infect Drug Resist 2023; 16:3955-3963. [PMID: 37361939 PMCID: PMC10290463 DOI: 10.2147/idr.s415197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 06/02/2023] [Indexed: 06/28/2023] Open
Abstract
Background Mycobacterium abscessus (M. abscessus) is a rapidly growing bacterium (RGM) that causes refractory pulmonary and extrapulmonary infections. However, studies investigating pharyngeal and laryngeal M. abscessus infections are limited. Case Presentation A 41-year-old immunocompetent woman complaining of bloody sputum was referred to our hospital. Although her sputum culture tested positive for M. abscessus subsp. abscessus, radiological findings were not indicative of pulmonary infection or sinusitis. Further diagnostic workup, including laryngeal endoscopy and positron emission tomography/computed tomography (PET/CT), confirmed the presence of nasopharyngeal M. abscessus infection. The patient was initially treated with intravenous amikacin, imipenem/cilastatin, azithromycin, and clofazimine for 28 days, after which the patient was provided with amikacin, azithromycin, clofazimine, and sitafloxacin for four months. After the completion of antibiotic therapy, the patient showed negative results on sputum smear and culture and normal findings on PET/CT and laryngeal endoscopy. Whole-genome sequencing of this strain revealed that it belonged to the ABS-GL4 cluster, which has a functional erythromycin ribosomal methylase gene, although it is not a major lineage in non-cystic fibrosis (CF) patients in Japan and Taiwan and in CF patients in European countries. We conducted a literature review and identified seven patients who developed pharyngeal/laryngeal non-tuberculous mycobacterium (NTM) infection. Four of the eight patients had a history of immunosuppressant use, including steroids. Seven of the eight patients responded well to their treatment regimens. Conclusion Patients whose sputum culture tests are positive for NTM and who meet the diagnostic criteria for NTM infection but do not have intrapulmonary lesions should be evaluated for otorhinolaryngological infections. Our case series revealed that immunosuppressant use is a risk factor for pharyngeal/laryngeal NTM infection and that patients with pharyngeal/laryngeal NTM infections respond relatively well to antibiotic therapy.
Collapse
Affiliation(s)
- Masanori Kaji
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Ho Namkoong
- Department of Infectious Diseases, Keio University School of Medicine, Tokyo, Japan
| | - Genta Nagao
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Shuhei Azekawa
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Kensuke Nakagawara
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Hiromu Tanaka
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Atsuho Morita
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Takanori Asakura
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
- Department of Clinical Medicine (Laboratory of Bioregulatory Medicine), Kitasato University School of Pharmacy, Tokyo, Japan
- Department of Respiratory Medicine, Kitasato University, Kitasato Institute Hospital, Tokyo, Japan
| | - Hirofumi Kamata
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Yoshifumi Uwamino
- Department of Infectious Diseases, Keio University School of Medicine, Tokyo, Japan
- Department of Laboratory Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Mitsunori Yoshida
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Koichi Fukunaga
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Naoki Hasegawa
- Department of Infectious Diseases, Keio University School of Medicine, Tokyo, Japan
| |
Collapse
|
9
|
Yoshii Y, Jimbo K, Hashiguchi H, Shikata S, Ogawa A, Watase C, Shiino S, Murata T, Yoshida M, Takayama S, Suto A. P173 Should positive surgical margin involvement of in situ carcinoma of invasive breast cancer after breast conserving surgery be treated with additional resection? Breast 2023. [DOI: 10.1016/s0960-9776(23)00290-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023] Open
|
10
|
Suzuki M, Hashimoto Y, Hirabayashi A, Yahara K, Yoshida M, Fukano H, Hoshino Y, Shibayama K, Tomita H. Genomic Epidemiological Analysis of Antimicrobial-Resistant Bacteria with Nanopore Sequencing. Methods Mol Biol 2023; 2632:227-246. [PMID: 36781732 DOI: 10.1007/978-1-0716-2996-3_16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
Antimicrobial-resistant (AMR) bacterial infections caused by clinically important bacteria, including ESKAPE pathogens (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter species) and mycobacteria (Mycobacterium tuberculosis and nontuberculous mycobacteria), have become a global public health threat. Their epidemic and pandemic clones often accumulate useful accessory genes in their genomes, such as AMR genes (ARGs) and virulence factor genes (VFGs). This process is facilitated by horizontal gene transfer among microbial communities via mobile genetic elements (MGEs), such as plasmids and phages. Nanopore long-read sequencing allows easy and inexpensive analysis of complex bacterial genome structures, although some aspects of sequencing data calculation and genome analysis methods are not systematically understood. Here we describe the latest and most recommended experimental and bioinformatics methods available for the construction of complete bacterial genomes from nanopore sequencing data and the detection and classification of genotypes of bacterial chromosomes, ARGs, VFGs, plasmids, and other MGEs based on their genomic sequences for genomic epidemiological analysis of AMR bacteria.
Collapse
Affiliation(s)
- Masato Suzuki
- Antimicrobial Resistance Research Center, National Institute of Infectious Diseases, Tokyo, Japan.
| | - Yusuke Hashimoto
- Department of Bacteriology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Aki Hirabayashi
- Antimicrobial Resistance Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Koji Yahara
- Antimicrobial Resistance Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Mitsunori Yoshida
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Hanako Fukano
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Yoshihiko Hoshino
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Keigo Shibayama
- Department of Bacteriology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Haruyoshi Tomita
- Department of Bacteriology, Gunma University Graduate School of Medicine, Maebashi, Japan.,Laboratory of Bacterial Drug Resistance, Gunma University Graduate School of Medicine, Maebashi, Japan
| |
Collapse
|
11
|
Tokuzawa T, Nasu T, Inagaki S, Moon C, Ido T, Idei H, Ejiri A, Imazawa R, Yoshida M, Oyama N, Tanaka K, Ida K. 3D metal powder additive manufacturing phased array antenna for multichannel Doppler reflectometer. Rev Sci Instrum 2022; 93:113535. [PMID: 36461436 DOI: 10.1063/5.0101723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 09/07/2022] [Indexed: 06/17/2023]
Abstract
Measuring the time variation of the wavenumber spectrum of turbulence is important for understanding the characteristics of high-temperature plasmas, and the application of a Doppler reflectometer with simultaneous multi-frequency sources is expected. To implement this diagnostic in future fusion devices, the use of a phased array antenna (PAA) that can scan microwave beams without moving antennas is recommended. Since the frequency-scanning waveguide leaky-wave antenna-type PAA has a complex structure, we have investigated its characteristics by modeling it with 3D metal powder additive manufacturing (AM). First, a single waveguide is fabricated to understand the characteristics of 3D AM techniques, and it is clear that there are differences in performance depending on the direction of manufacture and surface treatment. Then, a PAA is made, and it is confirmed that the beam can be emitted in any direction by frequency scanning. The plasma flow velocity can be measured by applying the 3D manufacturing PAA to plasma measurement.
Collapse
Affiliation(s)
- T Tokuzawa
- National Institute for Fusion Science, National Institutes of Natural Sciences, Toki 509-5292, Japan
| | - T Nasu
- The Graduate University for Advanced Studies, SOKENDAI, Toki 509-5292, Japan
| | - S Inagaki
- Institute of Advanced Energy, Kyoto University, Gokasho, Uji 611-0011, Japan
| | - C Moon
- Research Institute for Applied Mechanics, Kyushu University, Kasuga 816-8580, Japan
| | - T Ido
- Research Institute for Applied Mechanics, Kyushu University, Kasuga 816-8580, Japan
| | - H Idei
- Research Institute for Applied Mechanics, Kyushu University, Kasuga 816-8580, Japan
| | - A Ejiri
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan
| | - R Imazawa
- National Institutes for Quantum Science and Technology, 801-1 Mukoyama, Naka, Ibaraki 311-0193, Japan
| | - M Yoshida
- National Institutes for Quantum Science and Technology, 801-1 Mukoyama, Naka, Ibaraki 311-0193, Japan
| | - N Oyama
- National Institutes for Quantum Science and Technology, 801-1 Mukoyama, Naka, Ibaraki 311-0193, Japan
| | - K Tanaka
- National Institute for Fusion Science, National Institutes of Natural Sciences, Toki 509-5292, Japan
| | - K Ida
- National Institute for Fusion Science, National Institutes of Natural Sciences, Toki 509-5292, Japan
| |
Collapse
|
12
|
Fukano H, Nakanaga K, Goto M, Yoshida M, Ishii N, Hoshino Y. Therapeutic efficacy of rifalazil (KRM-1648) in a M. ulcerans-induced Buruli ulcer mouse model. PLoS One 2022; 17:e0274742. [PMID: 36201529 PMCID: PMC9536621 DOI: 10.1371/journal.pone.0274742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 09/05/2022] [Indexed: 11/07/2022] Open
Abstract
Buruli ulcer (BU) is a skin disease caused by Mycobacterium ulcerans infection that requires long-term antibiotic treatment and/or surgical excision. In this study, we investigated the therapeutic efficacy of the rifamycin derivative, rifalazil (RLZ) (also known as KRM-1648), in an advanced M. ulcerans infection model. Six-week-old female BALB/c mice were infected with 3.25 x 104 colony-forming units (CFU) of M. ulcerans subcutaneously into the bilateral hind footpads. At 33 days post-infection, when the footpads exhibited significant redness and swelling, mice were treated orally with 5 or 10 mg/kg of RLZ for up to 15 weeks. Mice were followed for an additional 15 weeks following treatment cessation. Untreated mice exhibited a progressive increase in footpad redness, swelling, and erosion over time, and all untreated mice reached to endpoint within 5–8 weeks post-bacterial injection. In the RLZ-treated mice, footpad redness and swelling and general condition improved or completely healed, and no recurrence occurred following treatment cessation. After 3 weeks of treatment, the CFU counts from the footpads of recovered RLZ-treated mice showed a 104 decrease compared with those of untreated mice. We observed a further reduction in CFU counts to the detection limit following 6 to 15 weeks of treatment, which did not increase 15 weeks after discontinuing the treatment. Histopathologically, bacteria in the treated mice became fragmented one week after RLZ-treatment. At the final point of the experiment, all the treated mice (5mg/kg/day; n = 6, 10mg/kg/day; n = 7) survived and had no signs of M. ulcerans infection. These results indicate that the rifamycin analogue, RLZ, is efficacious in the treatment of an advanced M. ulcerans infection mouse model.
Collapse
Affiliation(s)
- Hanako Fukano
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Kazue Nakanaga
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Masamichi Goto
- Department of Pathology, Field of Oncology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Mitsunori Yoshida
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Norihisa Ishii
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
- National Sanatorium Tamazenshoen, Tokyo, Japan
| | - Yoshihiko Hoshino
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
- * E-mail:
| |
Collapse
|
13
|
Osaka M, Yoshida M. Citrullination of histoneH3 in neutrophil via CXCL1 enhances neutrophil adhesion to femoral artery of LDLR−/− mice fed HFD. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.3079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Vascular inflammation plays an important role in the development of atherosclerosis. Previously we have shown that a high-fat diet (HFD) increased neutrophil adhesion to the vascular intima in wild-type (wt) mice (Osaka M. Sci Rep. 2016). However, the involvement of neutrophils in atherosclerosis-related vascular inflammation is not well known.
Purpose
This study examined that neutrophil extracellular trap (NETs) or the hypercitrullination of histone H3 in neutrophils enhances neutrophil adhesion to atheroprone-arteries in LDL receptor null (LDLR−/−) mice.
Methods
We observed leukocyte adhesion in the femoral artery of LDLR−/− mice fed normal chow (NC) or HFD, and determined leukocyte subtype that adhered on vascular endothelium under neutrophil or monocyte depletion using intravital microscopy. Importantly, neutrophil adhesion was examined under the administration of TDFA which inhibits NETs and citrullination of histone H3, in LDLR−/− mice fed HFD. Furthermore, immunohistochemistry for citrullinated histone H3 in peripheral neutrophils of mice was examined. Comprehensive cytokine/chemokine analysis for a plasma of mice was performed to determine the factors citrullinating histone H3 in LDLR−/− mice. Moreover, these mice were treated with a novel specific PPARα agonist, to reduce the elevation of plasma triglyceride levels.
Results
Leukocyte adhesion in LDLR−/− mice fed HFD significantly increased compared to NC. More interestingly, it significantly enhanced compared to wt mice fed HFD. Furthermore, neutrophil depletion rather than monocyte depletion diminished leukocyte adhesion, suggesting that the leukocyte subtype that adhered in LDLR−/− mice fed HFD was neutrophil. Neutrophil adhesion in these mice significantly was reduced by the administration of TDFA, suggesting a pivotal role for histone H3 citrullination in neutrophil adhesion. Moreover, citrullination of histone H3 in neutrophils from LDLR−/− mice fed HFD but not from those without HFD was significantly enhanced. In addition, comprehensive cytokine/chemokine analysis revealed an increase of CXCL1 in plasma of LDLR−/− mice fed HFD. CXCL1 enhanced neutrophil adhesion to HUVECs, and the adhesion significantly decreased by the treatment of TDFA to neutrophil in vitro non-static adhesion assay. These results showed that CXCL1 enhanced neutrophil adhesion in LDLR−/− mice fed HFD through citrullination. Furthermore, when these mice were treated with PPARα agonist, observed histone citrullination, as well as neutrophil adhesion, was significantly reduced.
Conclusion
These results suggest that HFD induced histone citrullination in neutrophils in LDLR−/− mice and PPARα agonist plays a role during hypertriglyceridemia-mediated vascular inflammation in atherosclerosis.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Grant-in-Aid for Scientific Research(C)
Collapse
Affiliation(s)
- M Osaka
- Tokyo Medical and Dental University , Tokyo , Japan
| | - M Yoshida
- Tokyo Medical and Dental University , Tokyo , Japan
| |
Collapse
|
14
|
Kim M, Baumlin N, Mohiuddin M, Yoshida M, Dennis J, Bengtson C, Salathe M. 426 Metformin improves high mobility group box protein 1–induced mucociliary dysfunction in cystic fibrosis airway epithelial cells. J Cyst Fibros 2022. [DOI: 10.1016/s1569-1993(22)01116-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
15
|
Fujiwara K, Yoshida M, Murase Y, Aono A, Furuuchi K, Tanaka Y, Ohta K, Ato M, Mitarai S, Morimoto K. Potential Cross-Transmission of Mycobacterium abscessus among Non-Cystic Fibrosis Patients at a Tertiary Hospital in Japan. Microbiol Spectr 2022; 10:e0009722. [PMID: 35536059 PMCID: PMC9241747 DOI: 10.1128/spectrum.00097-22] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 04/16/2022] [Indexed: 11/20/2022] Open
Abstract
Mycobacterium abscessus (M. abscessus) is a highly antimicrobial-resistant pathogen that causes refractory pulmonary disease. Recently, the possibility of M. abscessus cross-transmission among cystic fibrosis (CF) patients has been reported. CF is rare in Asia, but M. abscessus pulmonary disease is common. Therefore, we investigated the possibility of M. abscessus cross-transmission in a Japanese hospital setting. Of 104 M. abscessus isolates, 25 isolates from 24 patients were classified into four clusters based on their variable number of tandem repeat profiles and were subjected to whole-genome sequencing (WGS). The epidemiological linkages among our patients were investigated by integrating the WGS data of previously reported nosocomial outbreak-related M. abscessus clinical isolates in the United Kingdom and the United States. Eight transmissible clusters (TCs) were identified. The United Kingdom and United States isolates were assigned to four clusters (TC1, TC2, TC5, and TC8) and one cluster (TC3), respectively. A total of 12 isolates from our hospital belonged to 4 clusters (TC4, TC5, TC6, and TC7). Epidemiological linkage analysis inferred direct or indirect transmission between patients in our hospital in TC4 and TC5 but not in TC6 and TC7. In TC5, the single nucleotide polymorphism distance between isolates from Japanese and United Kingdom patients was less than 21; however, there was no contact. This study revealed that genetically closely related isolates exist, even in non-CF patients. However, the transmission route remains unclear, and further research is warranted to clarify whether cross-transmission is involved. IMPORTANCE Although the possibility of Mycobacterium abscessus (M. abscessus) cross-transmission in cystic fibrosis (CF) patients has often been reported, it is not clear whether similar events have occurred in Asian non-CF patients. Whole-genome sequencing analysis of M. abscessus isolates from Fukujuji Hospital in Japan indicated that genetically closely related M. abscessus isolates exist. In addition, according to epidemiological linkage analysis, some clusters were suspected of direct or indirect transmission between patients within our hospital. However, the transmission route of M. abscessus remains unclear, because interestingly, one cluster showed a single nucleotide polymorphism distance of less than 21 from the United Kingdom isolates, but no epidemiological linkage was identified.
Collapse
Affiliation(s)
- Keiji Fujiwara
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
- Department of Basic Mycobacteriosis, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Mitsunori Yoshida
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Yoshiro Murase
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Akio Aono
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Koji Furuuchi
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
- Department of Basic Mycobacteriosis, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Yoshiaki Tanaka
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Ken Ohta
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Manabu Ato
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Satoshi Mitarai
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
- Department of Basic Mycobacteriosis, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Kozo Morimoto
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
- Division of Clinical Research, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| |
Collapse
|
16
|
Yoshida M, Zoshima T, Kawano M. AB0270 EFFECT OF METHOTREXATE USE ON JOINT AND LUNG DISEASE OUTCOMES IN PATIENTS HAVING RHEUMATOID ARTHRITIS WITH INTERSTITIAL LUNG DISEASE. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.2336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundInterstitial lung disease (ILD) is a frequent complication of rheumatoid arthritis (RA). Although methotrexate (MTX) is an anchor drug for RA management, its use may worsen lung disease severity in patients with RA related ILD (RA-ILD). The safety and efficacy of MTX use in RA-ILD treatment have not been elucidated.ObjectivesWe aimed to clarify the clinical characteristics of patients with RA-ILD and the effect of MTX use on joint and lung disease outcomes.MethodsIn this retrospective study, we included patients with RA-ILD who visited our department from 2011 to 2019 and underwent chest computed tomography (CT). RA was diagnosed using the 1987 ACR criteria or the 2010 ACR/EULAR classification criteria. During the abovementioned period, we defined the baseline as the time of the first chest CT scan; moreover, the final observation was defined as the time of the final chest CT scan in patients who underwent CT more than once, or as the final visit in those without a second chest CT scan. We excluded patients whose RA-ILD status could not be fully evaluated using chest CT scans due to other causes, including respiratory infections. Severe infections were defined as infectious events requiring hospitalization.To identify the clinical characteristics of patients with RA-ILD, we compared the features of RA with versus without ILD at baseline. To clarify the effect of MTX use on RA-ILD outcomes, we compared the outcomes of patients with RA-ILD with versus without MTX use. Furthermore, we investigated factors associated with RA disease activity or ILD deterioration using multivariate analyses.ResultsIn this study, we included 452 patients (mean age, 60.2 years; females, 78.5%; mean observational period, 77.5 months), 325 (71.9%) of whom underwent chest CT more than two times.Patients with ILD (ILD; n=90, 19.9%) were older and had a higher RF positivity rate than those without ILD. Moreover, patients with ILD were treated with lower MTX use (20.2% vs. 52.9%, p<0.001; 1.46 vs. 3.53 mg/week, p<0.001) and TNF inhibitors exposure (21.1% vs. 13.1%, p<0.044) than those without ILD, albeit with similar uses of prednisolone and other bDMARDs, including tocilizumab and abatacept. DAS28-CRP was higher in patients with than in those without ILD at baseline (4.60 vs. 3.42, p=0.063) and at the final observation (2.42 vs. 2.09, p=0.025). Linear regression analysis showed that baseline age and ILD were significantly associated with DAS28-CRP at the final observation (β=0.206 and 0.173, respectively). Kaplan Meier analysis revealed that patients with ILD experienced severe infections and respiratory infections more frequently than those without ILD (log-rank test, p<0.001 and p<0.001).Seventeen patients (20.2%) with ILD were treated with MTX. At baseline, these patients had similar ages and RF/ACPA positivity rates, as well as prednisolone and tDMARDs exposures, with higher bDMARD exposure (41.2 vs. 13.4%, p=0.016) compared to that in ILD patients without MTX use. DAS28-CRP was comparable in patients with and without MTX use at baseline, but was lower at the final observation in MTX-treated patients with ILD (1.41 vs. 2.73, p<0.001). Kaplan Meier analyses revealed no differences in the frequencies of severe infections, respiratory infections, or ILD deterioration between patients with and without MTX use. Cox regression analysis demonstrated that the risk factors for ILD deterioration included baseline age (hazard ratio [HR] 1.088; 95% confidence interval [CI] 1.037-1.147), but not MTX use (HR 1.666; 95% CI 0.472-5.876).ConclusionRA-ILD were treated with lower MTX use, which resulted in higher RA disease activity. In contrast, patients with RA-ILD treated with MTX had lower RA disease activity without ILD deterioration. As RA-ILD is undertreated, appropriate MTX use may be required for effective RA-ILD treatmentReferences[1]Arthritis Rheumatol 2021;73:1108-23.Disclosure of InterestsNone declared
Collapse
|
17
|
Tsuge S, Fujii H, Tamai M, Mizushima I, Yoshida M, Suzuki N, Takahashi Y, Takeji A, Horita S, Fujisawa Y, Matsunaga T, Zoshima T, Nishioka R, Nuka H, Hara S, Tani Y, Suzuki Y, Ito K, Yamada K, Nakazaki S, Kawakami A, Kawano M. POS1339 FACTORS RELATED TO SERUM IgG4 ELEVATION AND DEVELOPMENT OF IgG4-RELATED DISEASE: DATA FROM RESIDENT EXAMINATION. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.2028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BackgroundElevated serum IgG4 levels are one of the characteristic findings in immunoglobulin G4 (IgG4)-related disease (IgG4-RD). Serum IgG4 levels have an impact to a certain extent on the diagnosis of IgG4-RD although there are some issues in their sensitivity and specificity. In the reports from Japan, China, USA, and Europe, elevated serum IgG4 levels were reported to be observed in 83-97% of patients with IgG4-RD [1-5]. In the past investigations of hospital patients, some studies reported that 10-15% of hospital patients with elevated serum IgG4 levels had IgG4-RD [6,7]. However, in general adults with no symptom, investigations of prevalence of elevated serum IgG4 levels and/or IgG4-RD have rarely been conducted.ObjectivesThis study aimed to investigate the frequency of serum IgG4 elevation in the general Japanese population and its associated factors using data from resident examinations.MethodsWe measured the serum IgG4 levels in 1,204 residents who underwent a general medical examination in Ishikawa prefecture, Japan. Logistic regression analysis was used to search for factors related to elevated serum IgG4 levels. Secondary examinations were conducted for participants in whom elevation was identified.ResultsThe mean serum IgG4 level was 44 mg/dL, and elevated serum IgG4 levels were observed in 42 patients (3.5%). Univariate logistic regression analyses showed that male sex, older age, lower estimated glomerular filtration rates based on cystatin C (eGFR-CysC), serum high-density lipoprotein cholesterol levels, and higher hemoglobin A1c (HbA1c) levels were associated with elevated serum IgG4 levels. Subgroup analyses in men showed that older age, lower eGFR-CysC levels, and higher serum HbA1c levels were associated with elevated serum IgG4 levels. In contrast, the analyses in women found no significant factors. One of the 10 residents who underwent secondary examinations was diagnosed with possible IgG4-related retroperitoneal fibrosis.ConclusionIn the general population, elevated serum IgG4 levels are more common in elderly men, which is similar to the epidemiological features of IgG4-RD.References[1]Inoue D, et al. IgG4-related disease: dataset of 235 consecutive patients. Medicine (Baltimore). 2015;94(15):e680.[2]Yamada K, et al. New clues to the nature of immunoglobulin G4-related disease: a retrospective Japanese multicenter study of baseline clinical features of 334 cases. Arthritis Res Ther. 2017;19(1):262[3]Culver EL, et al. Elevated serum IgG4 levels in diagnosis, treatment response, organ involvement, and relapse in a prospective IgG4-related disease UK cohort. Am J Gastroenterol 2016;111:733–43.[4]Lin W, et al. Clinical characteristics of immunoglobulin G4-related disease: a prospective study of 118 Chinese patients. Rheumatology (Oxford). 2015;54(11):1982–90.[5]Carruthers MN, et al. The diagnostic utility of serum IgG4 concentrations in IgG4-related disease. Ann Rheum Dis 2015;74:14-18.[6]James Yun, et al. Poor positive predictive value of serum immunoglobulin G4 concentrations in the diagnosis of immunoglobulin G4-related sclerosing disease. Asia Pac Allergy. 2014 Jul;4(3):172-176.[7]Taiwo N Ngwa, et al. Sreum immunoglobulin G4 level is a poor predictor of immunoglobulin G4–related disease. Pancreas. 2014 Jul;43(5):704-7.Disclosure of InterestsNone declared
Collapse
|
18
|
Kato H, Nemoto K, Shimizu M, Abe A, Asai S, Ishihama N, Matsuoka S, Daimon T, Ojika M, Kawakita K, Onai K, Shirasu K, Yoshida M, Ishiura M, Takemoto D, Takano Y, Terauchi R. Recognition of pathogen-derived sphingolipids in Arabidopsis. Science 2022; 376:857-860. [PMID: 35587979 DOI: 10.1126/science.abn0650] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In plants, many invading microbial pathogens are recognized by cell-surface pattern recognition receptors, which induce defense responses. Here, we show that the ceramide Phytophthora infestans-ceramide D (Pi-Cer D) from the plant pathogenic oomycete P. infestans triggers defense responses in Arabidopsis. Pi-Cer D is cleaved by an Arabidopsis apoplastic ceramidase, NEUTRAL CERAMIDASE 2 (NCER2), and the resulting 9-methyl-branched sphingoid base is recognized by a plasma membrane lectin receptor-like kinase, RESISTANT TO DFPM-INHIBITION OF ABSCISIC ACID SIGNALING 2 (RDA2). 9-Methyl-branched sphingoid base is specific to microbes and induces plant immune responses by physically interacting with RDA2. Loss of RDA2 or NCER2 function compromised Arabidopsis resistance against an oomycete pathogen. Thus, we elucidated the recognition mechanisms of pathogen-derived lipid molecules in plants.
Collapse
Affiliation(s)
- H Kato
- Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan
| | - K Nemoto
- Iwate Biotechnology Research Center, Kitakami 024-0003, Japan
| | - M Shimizu
- Iwate Biotechnology Research Center, Kitakami 024-0003, Japan
| | - A Abe
- Iwate Biotechnology Research Center, Kitakami 024-0003, Japan
| | - S Asai
- RIKEN Center for Sustainable Resource Science, Yokohama 230-0045, Japan
| | - N Ishihama
- RIKEN Center for Sustainable Resource Science, Yokohama 230-0045, Japan
| | - S Matsuoka
- RIKEN Center for Sustainable Resource Science, Wako 351-0198, Japan
| | - T Daimon
- Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan
| | - M Ojika
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - K Kawakita
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - K Onai
- Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan
| | - K Shirasu
- RIKEN Center for Sustainable Resource Science, Yokohama 230-0045, Japan.,Graduate School of Science, The University of Tokyo, Tokyo 113-8654, Japan
| | - M Yoshida
- RIKEN Center for Sustainable Resource Science, Wako 351-0198, Japan.,Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - M Ishiura
- Graduate School of Science, Nagoya University, Nagoya 464-8601, Japan
| | - D Takemoto
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Y Takano
- Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan
| | - R Terauchi
- Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan.,Iwate Biotechnology Research Center, Kitakami 024-0003, Japan
| |
Collapse
|
19
|
Horii C, Iidaka T, Muraki S, Oka H, Asai Y, Tsutsui S, Hashizume H, Yamada H, Yoshida M, Kawaguchi H, Nakamura K, Akune T, Oshima Y, Tanaka S, Yoshimura N. The cumulative incidence of and risk factors for morphometric severe vertebral fractures in Japanese men and women: the ROAD study third and fourth surveys. Osteoporos Int 2022; 33:889-899. [PMID: 34797391 DOI: 10.1007/s00198-021-06143-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 08/30/2021] [Indexed: 10/19/2022]
Abstract
UNLABELLED This population-based cohort study with a 3-year follow-up revealed that the annual incidence rates of vertebral fracture (VF) and severe VF (sVF) were 5.9%/year and 1.7%/year, respectively. The presence of mild VF at the baseline was a significant risk factor for incident sVF in participants without prevalent sVF. INTRODUCTION This study aimed to estimate the incidence of morphometric vertebral fracture (VF) and severe VF (sVF) in men and women and clarify whether the presence of a mild VF (mVF) increases the risk of incident sVF. METHODS Data from the population-based cohort study, entitled the Research on Osteoarthritis/Osteoporosis Against Disability (ROAD) study, were analyzed. In total, 1190 participants aged ≥ 40 years (mean age, 65.0 ± 11.2) years completed whole-spine lateral radiography both at the third (2012-2013, baseline) and fourth surveys performed 3 years later (2015-2016, follow-up). VF was defined using Genant's semi-quantitative (SQ) method: VF as SQ ≥ 1, mVF as SQ = 1, and sVF as SQ ≥ 2. Cumulative incidence of VF and sVF was estimated. Multivariate logistic regression analyses were performed to evaluate risk factors for incident sVF. RESULTS The baseline prevalence of mVF and sVF were 16.8% and 6.0%, respectively. The annual incidence rates of VF and sVF were 5.9%/year and 1.7%/year, respectively. The annual incidence rates of sVF in participants without prevalent VF, with prevalent mVF, and with prevalent sVF were 0.6%/year, 3.8%/year, and 11.7%/year (p < 0.001), respectively. Multivariate logistic regression analyses in participants without prevalent sVF showed that the adjusted odds ratios for incident sVF were 4.12 [95% confident interval 1.85-9.16] and 4.53 [1.49-13.77] if the number of prevalent mVF at the baseline was 1 and ≥ 2, respectively. CONCLUSIONS The annual incidence rates of VF and sVF were 5.9%/year and 1.7%/year, respectively. The presence of prevalent mVF was an independent risk factor for incident sVF.
Collapse
Affiliation(s)
- C Horii
- Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo Hospital, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - T Iidaka
- Department of Preventive Medicine for Locomotive Organ Disorders, 22nd Century Medical & Research Center, The University of Tokyo Hospital, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - S Muraki
- Department of Preventive Medicine for Locomotive Organ Disorders, 22nd Century Medical & Research Center, The University of Tokyo Hospital, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - H Oka
- Department of Medical Research and Management for Musculoskeletal Pain, 22nd Century Medical & Research Center, The University of Tokyo Hospital, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Y Asai
- Department of Orthopaedic Surgery, Wakayama Medical University, 811-1 Kimiidera, Wakayama City, Wakayama, 641-8510, Japan
| | - S Tsutsui
- Department of Orthopaedic Surgery, Wakayama Medical University, 811-1 Kimiidera, Wakayama City, Wakayama, 641-8510, Japan
| | - H Hashizume
- Department of Orthopaedic Surgery, Wakayama Medical University, 811-1 Kimiidera, Wakayama City, Wakayama, 641-8510, Japan
| | - H Yamada
- Department of Orthopaedic Surgery, Wakayama Medical University, 811-1 Kimiidera, Wakayama City, Wakayama, 641-8510, Japan
| | - M Yoshida
- Department of Orthopaedic Surgery, Wakayama Medical University, 811-1 Kimiidera, Wakayama City, Wakayama, 641-8510, Japan
| | - H Kawaguchi
- Department of Orthopaedic Surgery, Tokyo Neurological Center, 4-1-17, Toranomon, Minato-ku, Tokyo, 105-0001, Japan
| | - K Nakamura
- Department of Orthopaedics, Towa Hospital, Towa 4-7-10, Adachi-ku, Tokyo, 120-0003, Japan
| | - T Akune
- Department of Orthopaedics, National Rehabilitation Center for Persons With Disabilities, 4-1 Namiki, Tokorozawa City, Saitama, 359-0042, Japan
| | - Y Oshima
- Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo Hospital, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - S Tanaka
- Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo Hospital, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Noriko Yoshimura
- Department of Preventive Medicine for Locomotive Organ Disorders, 22nd Century Medical & Research Center, The University of Tokyo Hospital, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-8655, Japan.
| |
Collapse
|
20
|
Odagawa S, Watari T, Yoshida M. Chinkui dermatitis: the sea bather's eruption. QJM 2022; 115:100-101. [PMID: 34791435 DOI: 10.1093/qjmed/hcab277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Indexed: 11/12/2022] Open
Affiliation(s)
- S Odagawa
- From the General Medicine Center, Shimane University Hospital, Shimane, Japan
- Department of General Medicine, Oki Hospital, ShimaneJohoku-cho 335, Okinoshima-cho, Oki, Shimane, 685-0016, JAPANTEL 08512-2-1356
| | - T Watari
- From the General Medicine Center, Shimane University Hospital, Shimane, Japan
| | - M Yoshida
- Marine Biological Science Section, Education and Research Center for Biological Resources, Faculty of Life and Environmental Science, Shimane UniversityKamo 194, Okinoshima-cho, Oki, Shimane, 685-0024, JAPANTEL 08512-3-1007
| |
Collapse
|
21
|
Terakado A, Koide Y, Yoshida M, Nakano T, Homma H, Oyama N. Design of Heat-Resistant in-Vessel Components for Deuterium Beam-Aided Charge Exchange Recombination Spectroscopy in JT-60SA. Fusion Science and Technology 2022. [DOI: 10.1080/15361055.2021.1951529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- A. Terakado
- National Institutes for Quantum and Radiological Science and Technology, Naka, Ibaraki 311-0193, Japan
| | - Y. Koide
- National Institutes for Quantum and Radiological Science and Technology, Naka, Ibaraki 311-0193, Japan
| | - M. Yoshida
- National Institutes for Quantum and Radiological Science and Technology, Naka, Ibaraki 311-0193, Japan
| | - T. Nakano
- National Institutes for Quantum and Radiological Science and Technology, Naka, Ibaraki 311-0193, Japan
| | - H. Homma
- National Institutes for Quantum and Radiological Science and Technology, Naka, Ibaraki 311-0193, Japan
| | - N. Oyama
- National Institutes for Quantum and Radiological Science and Technology, Naka, Ibaraki 311-0193, Japan
| |
Collapse
|
22
|
Bengtson C, Yoshida M, Baumlin N, Dennis J, Kim M, Salathe M. 363: Losartan increases the efficacy of CFTR modulators to reverse inflammation-related mucociliary dysfunction. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)01787-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
23
|
Miyoshi T, Nakamura K, Amioka N, Yonezawa T, Kondo M, Saito Y, Yoshida M, Akagi S, Ito H. Sacubitril/valsartan ameliorates doxorubicin-induced cardiomyocyte toxicity through inhibiting oxidative stress in rats. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.3295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Doxorubicin (DOX)-based chemotherapy induces cardiotoxicity, which is considered the main limitation of its clinical application.
Purpose
The present study investigated the potential protective effect of sacubitril/valsartan, an angiotensin receptor–neprilysin inhibitor, against DOX-induced cardiotoxicity in rats and H9c2 cells, and whether the underlying mechanism for any such protection involves its antioxidant activity.
Methods
Male Sprague-Dawley rats were randomly divided into four groups: DOX (1.5 mg/kg/day intraperitoneally for 10 days), DOX+valsartan (31 mg/kg/day by gavage from day 1 to day 18), DOX+sacubitril/valsartan (68 mg/kg/day by gavage from day 1 to day 18), and control (saline intraperitoneally for 10 days). There were 15 rats in each group. At the end of the treatment period, samples were collected and analysed. Cardiac function, tissue morphology, and reactive oxygen species (ROS) were evaluated in rats. Serum levels of Malondialdehyde (MDA) and cardiac troponin T were also measured. Mitochondrial ROS production and cell viability were evaluated in H9c2 cells.
Results
DOX-induced cardiac dysfunction was not prevented by valsartan and sacubitril/valsartan in this model. However, the serum level of cardiac troponin T on day 18 was increased in the DOX group (0.046±0.006 ng/mL, p<0.01 vs. control) and significantly reduced in the DOX+sacubitril/valsartan group (0.039±0.007 ng/mL, p=0.03 vs. DOX), but not in the DOX+valsartan group (0.046±0.005 ng/mL, p=1.00 vs. DOX). Regarding the effect of sacubitril/valsartan on fibrosis in rat myocardium, Masson's trichrome staining showed increased intestinal fibrosis in the DOX group compared to that in the control group (1.35±0.07% and 0.49±0.04%, p<0.01) and significantly decreased intestinal fibrosis in the DOX+sacubitril/valsartan group (1.08±0.08%), but not in the DOX+ valsartan group (1.15±0.05%) compared to that in the DOX group (p=0.01 and p=0.15, respectively). The fluorescence intensity of dihydroethidium as a measure of ROD production in left ventricle, which was increased in the DOX group (1.56±0.07), was significantly reduced in the DOX+sacubitril/valsartan group (1.44±0.05, p=0.03), but not in the DOX+valsartan group (1.29±0.06, p=1.00). On day 11, the serum MDA level, which was increased in the DOX group, was significantly reduced in the DOX+ sacubitril/valsartan group (p=0.02), but not in the DOX+ valsartan group (p=0.75). In H9c2 cells, sacubitril/valsartan reduced DOX-induced mitochondrial ROS generation by 25%, which was more marked than valsartan-induced ROS generation (p<0.01 and p=0.01, respectively). Sacubitril/valsartan improved cell viability more markedly than valsartan. Thus, DOX-induced cytotoxicity in H9c2 cells was improved by sacubitril/valsartan, but not valsartan.
Conclusions
Sacubitril/valsartan protected rat hearts from DOX-induced cardiotoxicity in vivo and in vitro by decreasing oxidative stress.
Funding Acknowledgement
Type of funding sources: Private company. Main funding source(s): This work was supported by Novartis Pharma K.K.
Collapse
Affiliation(s)
| | | | - N Amioka
- Okayama University, Okayama, Japan
| | | | - M Kondo
- Okayama University, Okayama, Japan
| | - Y Saito
- Okayama University, Okayama, Japan
| | | | - S Akagi
- Okayama University, Okayama, Japan
| | - H Ito
- Okayama University, Okayama, Japan
| |
Collapse
|
24
|
Yoshida M, Saito M. Neutrophil-Reduced Platelet Rich Plasma with Optimal Platelets Concentrations for Epicondylitis of the Elbow. Muscles Ligaments Tendons J 2021. [DOI: 10.32098/mltj.03.2021.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
25
|
Yazaki S, Shimoi T, Yoshida M, Okuma H, Kita S, Yamamoto K, Kojima Y, Nishikawa T, Tanioka M, Sudo K, Noguchi E, Murata T, Takayama S, Suto A, Yonemori K. 171P Combining tumor-infiltrating lymphocytes and PD-L1 expression can stratify prognosis in early-stage triple-negative breast cancer patients who did not receive adjuvant chemotherapy. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
|
26
|
Namkoong H, Omae Y, Asakura T, Ishii M, Suzuki S, Morimoto K, Kawai Y, Emoto K, Oler AJ, Szymanski EP, Yoshida M, Matsuda S, Yagi K, Hase I, Nishimura T, Sasaki Y, Asami T, Shiomi T, Matsubara H, Shimada H, Hamamoto J, Jhun BW, Kim SY, Huh HJ, Won HH, Ato M, Kosaki K, Betsuyaku T, Fukunaga K, Kurashima A, Tettelin H, Yanai H, Mahasirimongkol S, Olivier KN, Hoshino Y, Koh WJ, Holland SM, Tokunaga K, Hasegawa N. Genome-wide association study in patients with pulmonary Mycobacterium avium complex disease. Eur Respir J 2021; 58:13993003.02269-2019. [PMID: 33542050 DOI: 10.1183/13993003.02269-2019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 12/30/2020] [Indexed: 12/26/2022]
Abstract
RATIONALE Nontuberculous mycobacteria (NTM) are environmental mycobacteria that can cause a chronic progressive lung disease. Although epidemiological data indicate potential genetic predisposition, its nature remains unclear. OBJECTIVES We aimed to identify host susceptibility loci for Mycobacterium avium complex (MAC), the most common NTM pathogen. METHODS This genome-wide association study (GWAS) was conducted in Japanese patients with pulmonary MAC and healthy controls, followed by genotyping of candidate single-nucleotide polymorphisms (SNPs) in another Japanese cohort. For verification by Korean and European ancestry, we performed SNP genotyping. RESULTS The GWAS discovery set included 475 pulmonary MAC cases and 417 controls. Both GWAS and replication analysis of 591 pulmonary MAC cases and 718 controls revealed the strongest association with chromosome 16p21, particularly with rs109592 (p=1.64×10-13, OR 0.54), which is in an intronic region of the calcineurin-like EF-hand protein 2 (CHP2). Expression quantitative trait loci analysis demonstrated an association with lung CHP2 expression. CHP2 was expressed in the lung tissue in pulmonary MAC disease. This SNP was associated with the nodular bronchiectasis subtype. Additionally, this SNP was significantly associated with the disease in patients of Korean (p=2.18×10-12, OR 0.54) and European (p=5.12×10-03, OR 0.63) ancestry. CONCLUSIONS We identified rs109592 in the CHP2 locus as a susceptibility marker for pulmonary MAC disease.
Collapse
Affiliation(s)
- Ho Namkoong
- Division of Pulmonary Medicine, Dept of Medicine, Keio University School of Medicine, Tokyo, Japan.,Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health (NIH), Bethesda, MD, USA.,JSPS Overseas Research Fellow, Japan Society for the Promotion of Science, Tokyo, Japan.,H. Namkoong and Y. Omae are co-first authors.,H. Namkoong, N. Hasegawa and K. Tokunaga contributed equally to this article as lead authors and supervised the work
| | - Yosuke Omae
- Dept of Human Genetics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,Genome Medical Science Project (Toyama), National Center for Global Health and Medicine, Tokyo, Japan.,H. Namkoong and Y. Omae are co-first authors
| | - Takanori Asakura
- Division of Pulmonary Medicine, Dept of Medicine, Keio University School of Medicine, Tokyo, Japan.,Dept of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Makoto Ishii
- Division of Pulmonary Medicine, Dept of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Shoji Suzuki
- Division of Pulmonary Medicine, Dept of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Kozo Morimoto
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Yosuke Kawai
- Dept of Human Genetics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,Genome Medical Science Project (Toyama), National Center for Global Health and Medicine, Tokyo, Japan
| | - Katsura Emoto
- Dept of Pathology, Keio University School of Medicine, Tokyo, Japan
| | - Andrew J Oler
- Bioinformatics and Computational Biosciences Branch, Office of Cyber Infrastructure and Computational Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health (NIH), Bethesda, MD, USA
| | - Eva P Szymanski
- Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health (NIH), Bethesda, MD, USA
| | - Mitsunori Yoshida
- Dept of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Shuichi Matsuda
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Kazuma Yagi
- Division of Pulmonary Medicine, Dept of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Isano Hase
- Dept of Respiratory Medicine, National Hospital Organization Utsunomiya Hospital, Tochigi, Japan
| | | | - Yuka Sasaki
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Takahiro Asami
- Division of Pulmonary Medicine, Dept of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Tetsuya Shiomi
- Dept of Pulmonary Medicine, Keiyu Hospital, Kanagawa, Japan
| | | | - Hisato Shimada
- Dept of Pulmonary Medicine, Kawasaki Municipal Ida Hospital, Kanagawa, Japan
| | - Junko Hamamoto
- Division of Pulmonary Medicine, Dept of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Byung Woo Jhun
- Division of Pulmonary and Critical Care Medicine, Dept of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Su-Young Kim
- Division of Pulmonary and Critical Care Medicine, Dept of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Hee Jae Huh
- Dept of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Hong-Hee Won
- Samsung Advanced Institute for Health Sciences and Technology (SAIHST), Sungkyunkwan University, Samsung Medical Center, Seoul, South Korea
| | - Manabu Ato
- Dept of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Kenjiro Kosaki
- Center for Medical Genetics, Keio University School of Medicine, Tokyo, Japan
| | - Tomoko Betsuyaku
- Division of Pulmonary Medicine, Dept of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Koichi Fukunaga
- Division of Pulmonary Medicine, Dept of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Atsuyuki Kurashima
- Respiratory Disease Center, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Hervé Tettelin
- Dept of Microbiology and Immunology, School of Medicine, University of Maryland, Bethesda, MD, USA.,Institute for Genome Sciences, School of Medicine, University of Maryland, Bethesda, MD, USA
| | - Hideki Yanai
- Dept of Clinical Laboratory, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - Surakameth Mahasirimongkol
- Medical Genetics Center, Medical Life Sciences Institute, Dept of Medical Sciences, Ministry of Public Health, Nonthaburi, Thailand
| | - Kenneth N Olivier
- Pulmonary Branch, National Heart, Lung, and Blood Institute, National Institutes of Health (NIH), Bethesda, MD, USA
| | - Yoshihiko Hoshino
- Dept of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Won-Jung Koh
- Division of Pulmonary and Critical Care Medicine, Dept of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Steven M Holland
- Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health (NIH), Bethesda, MD, USA
| | - Katsushi Tokunaga
- Dept of Human Genetics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,Genome Medical Science Project (Toyama), National Center for Global Health and Medicine, Tokyo, Japan.,H. Namkoong, N. Hasegawa and K. Tokunaga contributed equally to this article as lead authors and supervised the work
| | - Naoki Hasegawa
- Dept of Infectious Diseases, Keio University School of Medicine, Tokyo, Japan.,H. Namkoong, N. Hasegawa and K. Tokunaga contributed equally to this article as lead authors and supervised the work
| | | |
Collapse
|
27
|
Nakajima N, Kawano H, Kai Y, Takai A, Abe M, Iimura Y, Cheng M, Yoshida M, Yamashita N. P–248 Statistical estimation for incidence of blastocyst trophectoderm vesicles (TVs) and efficacy of assisted hatching (AH). Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Study question
The aim of this study is to analyse the association between blastocyst diameter and TVs development, and to examine the efficacy of AH.
Summary answer
Blastocysts with a diameter of more than 170 μm leads to high incidence of TVs and AH applied from the incidence should be effective.
What is known already
TVs are protrusion of trophectoderm cells often observed in expanding blastocyst stages. TVs can be observed in expanding blastocysts regardless of Intracytoplasmic sperm injection (ICSI) and Conventional-IVF (C-IVF), when the internal pressure of blastocysts increase. The rate of TVs incidence in blastocysts inseminated by ICSI is higher than that by C-IVF, due to penetration of the needle into the zona pellucida. Moreover, it has been reported that TVs may inhibit blastocyst hatching. However, the developmental timing of TVs is still unclear, and there is no study that has analysed the association between blastocyst diameter and the incidence of TVs.
Study design, size, duration
1) Diameters and TVs incidence of blastocysts by ICSI and C-IVF were measured, and the cut-off value and the area under the curve (AUC) of the receiver operating characteristic (ROC) curve were calculated to estimate the timing of TV incidence. 2) We analysed the clinical pregnancy rates of blastocysts with TVs treated by AH compared to those of blastocysts by C-IVF not subjected to AH.
Participants/materials, setting, methods
This study included 821 transferred frozen blastocysts ranging from March 2018 to November 2019. The embryos were cultured in a dry incubator after insemination by ICSI or C-IVF. Blastocyst freezing conditions were set at day5 to day7 with a diameter of more than 150 μm in inner diameter of zona pellucida, and this was measured before freezing. The ROC curve was performed using EZR statistical analysis software.
Main results and the role of chance
1) The incidence of TVs in blastocysts by ICSI and C-IVF was 27.5% (117/424) and 14.6% (58/397) respectively. The rate of the incidence of TVs in blastocysts inseminated by ICSI and C-IVF; 8.6% (12/140) and 0.95% (1/105) in 150–159 μm, 12.7% (14/110) and 8.2% (6/73) in 160–169 μm, 40.6% (28/69) and 10.5% (6/57) in 170–179 μm, 55.6% (30/54) and 25.5% (13/51) in 180–189 μm, 66.7% (20/30) and 35.7% (10/28) in 190–199 μm, and 68.4% (13/19) and 26.8% (22/82) in the diameter of more than 200 μm. The cut-off value of the ROC curve was respectively 170 μm (sensitivity 78.6% and specificity 73.0%) and 176 μm (sensitivity 84.5% and specificity 59.6%) in the diameter; the AUC was 0.8 [95%CI:0.752–0.848] and 0.74 [95%CI:0.687–0.793] respectively. 2) The clinical pregnancy rate of TVs blastocyst vs C-IVF blastocyst was 52.7% (88/167) vs 57.8% (37/64) respectively. There is no significant difference between the two clinical pregnancy rates (P = 0.556).
Limitations, reasons for caution
The findings of this study have to be seen in light of some limitations. Since this study aimed to analyse the incidence of TVs based on blastocyst size, we did not take into account the grade according to the Gardner classification and the number of trophectoderm cells.
Wider implications of the findings: Blastocysts inseminated by ICSI and C-IVF were highly likely to have TVs above 170 μm and 176 μm respectively. The clinical pregnancy rates of the blastocyst with TV treated by AH was similar to those of the C-IVF blastocyst.
Trial registration number
Not applicable
Collapse
Affiliation(s)
- N Nakajima
- Yamashita Shonan Yume Clinic, Embryologist, Fujisawa city- Kanagawa, Japan
| | - H Kawano
- Yamashita Shonan Yume Clinic, Embryologist, Fujisawa city- Kanagawa, Japan
| | - Y Kai
- Reproductive research center in Yamashita Shonan Yume Clinic, Researcher, Fujisawa city, Japan
| | - A Takai
- Yamashita Shonan Yume Clinic, Embryologist, Fujisawa city- Kanagawa, Japan
| | - M Abe
- Yamashita Shonan Yume Clinic, Embryologist, Fujisawa city- Kanagawa, Japan
| | - Y Iimura
- Yamashita Shonan Yume Clinic, Embryologist, Fujisawa city- Kanagawa, Japan
| | - M Cheng
- Yamashita Shonan Yume Clinic, Embryologist, Fujisawa city- Kanagawa, Japan
| | - M Yoshida
- Yamashita Shonan Yume Clinic, Physician, Fujisawa city- Kanagawa, Japan
| | - N Yamashita
- Yamashita Shonan Yume Clinic, Physician, Fujisawa city- Kanagawa, Japan
| |
Collapse
|
28
|
Sanders M, Ida K, Yoshinuma M, Suzuki C, Yoshimura Y, Seki R, Emoto M, Yoshida M, Kobayashi T. Analysis of the Motional Stark Effect (MSE) diagnostic to measure the rotational transform and current profile in the Large Helical Device. Rev Sci Instrum 2021; 92:053503. [PMID: 34243309 DOI: 10.1063/5.0018859] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 04/07/2021] [Indexed: 06/13/2023]
Abstract
The analysis method of the Motional Stark Effect (MSE) diagnostic to measure the rotational transform and current profiles in the Large Helical Device has been improved. This was done by using the Variational Moments Equilibrium Code to calculate an equilibrium database for various pressure profiles and current profiles. This method looks for the radial profile of the rotational transform in the equilibrium database that gives the best fit to the polarization angle profiles measured with the MSE diagnostic. This analysis improves the measurements of rotational transform, especially near the magnetic axis, where the sensitivity of the polarization angle measurements becomes low and the uncertainty due to error in the estimation of the Pfirsch-Schlüter current becomes large. The radial profiles of the rotational transform and current profiles for Electron Cyclotron Current Drive and Neutral Beam Current Drive are obtained in the new analysis method with a sufficiently high accuracy to discuss the discrepancy of the current density profiles between the measurements and the calculations.
Collapse
Affiliation(s)
- M Sanders
- Department of Applied Physics, Eindhoven University of Technology, Eindhoven 5600 MB, The Netherlands
| | - K Ida
- National Institute for Fusion Science, National Institutes of Natural Sciences, Toki, Gifu 509-5292, Japan
| | - M Yoshinuma
- National Institute for Fusion Science, National Institutes of Natural Sciences, Toki, Gifu 509-5292, Japan
| | - C Suzuki
- National Institute for Fusion Science, National Institutes of Natural Sciences, Toki, Gifu 509-5292, Japan
| | - Y Yoshimura
- National Institute for Fusion Science, National Institutes of Natural Sciences, Toki, Gifu 509-5292, Japan
| | - R Seki
- National Institute for Fusion Science, National Institutes of Natural Sciences, Toki, Gifu 509-5292, Japan
| | - M Emoto
- National Institute for Fusion Science, National Institutes of Natural Sciences, Toki, Gifu 509-5292, Japan
| | - M Yoshida
- National Institute for Fusion Science, National Institutes of Natural Sciences, Toki, Gifu 509-5292, Japan
| | - T Kobayashi
- National Institute for Fusion Science, National Institutes of Natural Sciences, Toki, Gifu 509-5292, Japan
| |
Collapse
|
29
|
Taylor DP, Yoshida M, Fuller K, Giannobile WV, Sfeir CS, Wagner WR, Kohn DH. Translating Dental, Oral, and Craniofacial Regenerative Medicine Innovations to the Clinic through Interdisciplinary Commercial Translation Architecture. J Dent Res 2021; 100:1039-1046. [PMID: 33906502 DOI: 10.1177/00220345211009502] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Few university-based regenerative medicine innovations in the dental, oral, and craniofacial (DOC) space have been commercialized and affected clinical practice in the United States. An analysis of the commercial translation literature and National Institute for Dental and Craniofacial Research's (NIDCR's) portfolio identified barriers to commercial translation of university-based DOC innovations. To overcome these barriers, the NIDCR established the Dental Oral Craniofacial Tissue Regeneration Consortium. We provide generalized strategies to inform readers how to bridge the "valley of death" and more effectively translate DOC technologies from the research laboratory or early stage company environment to clinical trials and bring needed innovations to the clinic. Three valleys of death are covered: 1) from basic science to translational development, 2) from translational technology validation to new company formation (or licensing to an existing company), and 3) from new company formation to scaling toward commercialization. An adapted phase-gate model is presented to inform DOC regenerative medicine teams how to involve regulatory, manufacturability, intellectual property, competitive assessments, business models, and commercially oriented funding mechanisms earlier in the translational development process. An Industrial Partners Program describes how to conduct market assessments, industry maps, business development processes, and industry relationship management methods to sustain commercial translation through the later-stage valley of death. Paramount to successfully implementing these methods is the coordination and collaboration of interdisciplinary teams around specific commercial translation goals and objectives. We also provide several case studies for translational projects with an emphasis on how they addressed DOC biomaterials for tissue regeneration within a rigorous commercial translation development environment. These generalized strategies and methods support innovations within a university-based and early stage company-based translational development process, traversing the many funding gaps in dental, oral, and craniofacial regenerative medicine innovations. Although the focus is on shepherding technologies through the US Food and Drug Administration, the approaches are applicable worldwide.
Collapse
Affiliation(s)
- D P Taylor
- Department of Biomedical Informatics, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.,McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA.,sciVelo, University of Pittsburgh Health Sciences, Pittsburgh, PA, USA
| | - M Yoshida
- Department of Biologic and Materials Sciences & Prosthodontics, University of Michigan School of Dentistry, Ann Arbor, MI, USA
| | - K Fuller
- Medical Device Regulatory Solutions LLC, Ann Arbor, MI, USA
| | | | - C S Sfeir
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA.,Department of Periodontics and Preventive Dentistry, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - W R Wagner
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - D H Kohn
- Department of Biologic and Materials Sciences & Prosthodontics, University of Michigan School of Dentistry, Ann Arbor, MI, USA
| |
Collapse
|
30
|
Maseki H, Jimbo K, Nakadaira U, Watase C, Murata T, Shiino S, Takayama S, Yamamoto N, Yoshida M, Suto A. Evaluation of incidental implantation of tumor cells after diagnostic needle biopsy in breast cancer patients. Breast 2021. [DOI: 10.1016/s0960-9776(21)00198-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
|
31
|
Kawakita T, Mukai T, Yoshida M, Yamada H, Nakayama M, Miyamoto Y, Suzuki M, Nakata N, Takii T, Ryo A, Ohara N, Ato M. Point mutation in the stop codon of MAV_RS14660 increases the growth rate of Mycobacterium avium subspecies hominissuis. Microbiology (Reading) 2021; 167:001007. [PMID: 33357282 PMCID: PMC8131024 DOI: 10.1099/mic.0.001007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 11/30/2020] [Indexed: 11/18/2022]
Abstract
Mycobacterium avium subspecies hominissuis (MAH) is a pathogen that causes various non-tuberculous mycobacterial diseases in humans and animals worldwide. Among the genus, MAH is characterized by relatively slow growth. Here, we isolated a rapidly growing variant of the MAH 104 strain. The variant strain (named N104) exhibited an enhanced growth rate and higher motility compared to the parent MAH 104 strain (P104). Whole-genome sequencing analysis of N104 revealed the loss of the stop codon of MAV_RS14660 due to a single nucleotide replacement, resulting in the substitution of the codon for tryptophan. Notably, exclusion of the stop codon ligated the open reading frames and caused the fusion of two adjacent proteins. A revertant parent strain, in which a mutation was introduced to restore the stop codon, revealed that elimination of the stop codon in MAV_RS14660 was responsible for the N104 phenotype. Furthermore, we analysed the phenotypes of the parent and mutated strains by determining the functions of the MAV_RS14660 and MAV_RS14655 coding regions flanking the stop codon. The mutant strains, expected to express a fusion protein, exhibited increased resistance to antimicrobial drugs and exogenous copper toxicity compared to that of the parent strains. These findings suggest that the fusion of the MAV_RS14660- and MAV_RS14655-encoding regions in the mutant N104 strain could be related to the modified functions of these intrinsic proteins.
Collapse
Affiliation(s)
- Tomomi Kawakita
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
- Department of Microbiology and Molecular Biodefense Research, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Tetsu Mukai
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Mitsunori Yoshida
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Hiroyuki Yamada
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Tokyo, Japan
| | - Masaaki Nakayama
- Department of Oral Microbiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
- Advanced Research Center for Oral and Craniofacial Sciences, Okayama University Dental School, Okayama, Japan
| | - Yuji Miyamoto
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Masato Suzuki
- Antimicrobial Resistance Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Noboru Nakata
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Takemasa Takii
- Department of Mycobacterium Reference and Research, Research Institute of Tuberculosis, Tokyo, Japan
| | - Akihide Ryo
- Department of Microbiology and Molecular Biodefense Research, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Naoya Ohara
- Department of Oral Microbiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
- Advanced Research Center for Oral and Craniofacial Sciences, Okayama University Dental School, Okayama, Japan
| | - Manabu Ato
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| |
Collapse
|
32
|
Fukano H, Terazono T, Hirabayashi A, Yoshida M, Suzuki M, Wada S, Ishii N, Hoshino Y. Human pathogenic Mycobacterium kansasii (former subtype I) with zoonotic potential isolated from a diseased indoor pet cat, Japan. Emerg Microbes Infect 2021; 10:220-222. [PMID: 33467980 PMCID: PMC7872583 DOI: 10.1080/22221751.2021.1878935] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Nontuberculous mycobacterial (NTM) infections in humans have increased in prevalence in recent decades. Mycobacterium kansasii is one of the most prevalent human pathogenic NTM species worldwide. Herein, we report the first isolation of M. kansasii from an indoor domestic cat in Japan. Comparative genome sequence analysis of the feline isolate showed this pathogen is genetically identical to human pathogenic M. kansasii. This finding suggests that M. kansasii has a potential risk of zoonoses and requires the "One Health" approach to control NTM infection.
Collapse
Affiliation(s)
- Hanako Fukano
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | | | - Aki Hirabayashi
- Antimicrobial Resistance Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Mitsunori Yoshida
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Masato Suzuki
- Antimicrobial Resistance Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Shinpei Wada
- Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Norihisa Ishii
- National Sanatorium Tamazenshoen, Higashimurayama, Japan
| | - Yoshihiko Hoshino
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| |
Collapse
|
33
|
Yoshida M, Funasaki H. Optimal Platelet Concentration for The Therapeutic Effect of Autologous Neutrophil-Reduced Platelet Rich Plasma in A Rat Model of Achilles Tendinopathy. Muscles Ligaments Tendons J 2020. [DOI: 10.32098/mltj.04.2020.08] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- M. Yoshida
- Department of Orthopaedic Surgery,The Jikei University School of Medicine
| | - H. Funasaki
- Department of Orthopaedic Surgery,The Jikei University School of Medicine
| |
Collapse
|
34
|
Miki T, Miyoshi T, Suruga K, Ichikawa K, Otsuka H, Toda H, Yoshida M, Nakamura K, Morita H, Ito H. Triglyceride to HDL-cholesterol ratio is a predictor of future coronary events: a possible role of high-risk coronary plaques detected by coronary CT angiography. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2930] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
For the prevention of future cardiovascular events, control of residual risks such as triglyceride rich lipoproteins and HDL-cholesterol is an emerging problem beyond LDL-cholesterol. Triglyceride to HDL-cholesterol ratio (TG/HDL ratio) has been reported to be useful for risk classification of cardiovascular diseases. Meanwhile, several studies showed that high-risk plaque characteristics evaluated with coronary CT angiography (cCTA) was associated with the incidence of acute coronary syndrome. However, the relationship of TG/HDL ratio with coronary plaque characteristics and its impact of this association on future coronary events have not been fully elucidated.
Purpose
The aim of this study was to evaluate the association between TG/HDL ratio and high-risk plaque detected by cCTA and its impact on future coronary events.
Methods
A total of 944 patients suspected stable coronary artery disease who underwent cCTA at our institution were analyzed (mean 64-year-old, 55% male). Patients were divided into two groups by the median value of TG/HDL ratio (higher TG/HDL: TG/HDL ratio ≥2.0, lower TG/HDL: TG/HDL ratio <2.0). Coronary high-risk plaques were defined as a plaque with all three components; low attenuation plaque (<50H.U.), positive remodeling (remodeling index >1.1) and spotty calcification. Cardiovascular event was defined as cardiovascular death, acute coronary syndrome, and late coronary revascularization after 30 days of CT acquisition.
Results
The higher TG/HDL ratio was significantly associated with male gender (63% vs. 48%, P<0.001), body mass index (24.8±3.8 vs. 22.9±4.0, p<0.001), the prevalence of hypertension (65% vs. 54%, P<0.001), dyslipidemia (60% vs. 42%, P<0.001), diabetes mellitus (38% vs. 27%, P=0.001) and current smoking (26% vs. 10%, p<0.001). Regarding cCTA findings, the prevalence of significant stenosis, calcified plaque, non-calcified plaque, coronary plaques with low attenuation plaque, positive remodeling and spotty calcification in the higher TG/HDL group were greater than those in the lower group (Figure 1A). Of note, the difference in high-risk plaque between two groups was significant. (18% vs. 11%, p=0.004). Multivariate logistic analysis revealed that the TG/HDL ratio was an independent risk factor for high-risk plaque even after adjustment (OR, 1.35; 95% CI, 1.01–1.81; p=0.049). Regarding coronary events (median follow-up duration; 48 months), Kaplan-Meier curve showed poor event-free rate in the higher TG/HDL group (Figure 1B). At Cox proportional hazard analysis, higher TG/HDL ratio (HR, 1.94; 95% CI, 1.01–3.70; p=0.046) and CT-verified high-risk plaque (HR, 2.36; 95% CI, 1.27–4.38; p=0.006) were independent predictive factors for coronary events even after adjustment.
Conclusion
TG/HDL ratio is involved in the vulnerability of CT-verified coronary plaque characteristics. This association may play an important role in the prognostic impact of TG/HDL ratio on future cardiovascular events.
Funding Acknowledgement
Type of funding source: None
Collapse
Affiliation(s)
- T Miki
- Okayama University Hospital, Okayama, Japan
| | - T Miyoshi
- Okayama University Hospital, Okayama, Japan
| | - K Suruga
- Okayama University Hospital, Okayama, Japan
| | - K Ichikawa
- Okayama University Hospital, Okayama, Japan
| | - H Otsuka
- Okayama University Hospital, Okayama, Japan
| | - H Toda
- Okayama University Hospital, Okayama, Japan
| | - M Yoshida
- Okayama University Hospital, Okayama, Japan
| | - K Nakamura
- Okayama University Hospital, Okayama, Japan
| | - H Morita
- Okayama University Hospital, Okayama, Japan
| | - H Ito
- Okayama University Hospital, Okayama, Japan
| |
Collapse
|
35
|
Nakano Y, Okumura N, Imai R, Yoshida M, Shimokata S, Adachi S, Murohara T, Kondo T. Impact of higher detection rate of residual pulmonary thromboemboli one-year after acute pulmonary embolism: modified CT scan imaging method with modified CT obstruction index. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Recently, post pulmonary embolism (PE) syndrome or chronic thromboembolic disease after acute PE, has been recognized as important long-term complications. Furthermore, patients may develop with chronic thromboembolic pulmonary hypertension.
Purpose
We aimed to evaluate the frequency of residual pulmonary thromboemboli after acute PE by using our “higher”-resolution CT scan imaging method to detect residual thromboemboli down to sub-segmental pulmonary arteries.
Methods
This study was a prospective multi-center observational study. We enrolled consecutive 34 patients with acute symptomatic PE whose informed consent was obtained, and followed up for one year. One year after the onset of acute PE, patients were referred to our hospital and multiple examination including CT scan, 6-minute walk test (6MWT), questionnaire of SF-36, echocardiography and laboratory testing were performed. Additionally, we have modified the CT obstruction index (CTOI) to quantitatively evaluate the thromboemboli down to sub-segmental pulmonary arteries.
Results
Mean age was 60.5±15.8 years, and 56% were male. No patient was categorized as low recurrent VTE risk which was caused by transient factors, one patient was associated with active cancer, and 12% had known thrombophilia. In 85% of the patients, this onset was the first obvious episode of PE. At diagnosis, elevated B-type natriuretic peptide (BNP) (≥100 pg/ml) or N-terminal (NT)-proBNP (≥500 pg/ml) was observed in 45% of the patients. Median tricuspid regurgitation peak gradient (TRPG) by echocardiography was 30.9 (19.3–50.1) mmHg. Among all, 35% of the patients received single-drug approach with DOACs. At discharge, all of the patients except two were treated with DOACs.
One year after the onset, 21% of the patient were in NYHA II and others were in NYHA I. It was notable that pulmonary thromboemboli was detected by our CT scan in 76% of the patients. Modified CTOI was median 11.9 (1.8–24.4) % as shown in the figure.
In multiple regression analysis, TRPG at diagnosis and BNP at one month were significantly associated with mCTOI (β=0.536, p=0.002 and β=−0.482, p=0.003, respectively). Additionally, lowest SpO2 during 6MWT after one year from the onset, tended to inversely associate with mCTOI (β=−0.341, p=0.052).
Conclusions
Using our modified CT scan imaging method and modified CTOI, residual pulmonary thromboemboli was able to be detected more frequently than the previous studies. Residual pulmonary thromboemboli could be one of the cause of the post PE syndrome and lead to exercise-induced desaturation.
Figures
Funding Acknowledgement
Type of funding source: None
Collapse
Affiliation(s)
- Y Nakano
- Nagoya University, Graduate School of Medicine, Department of Advanced Medicine in Cardiopulmonary Disease, Nagoya, Japan
| | - N Okumura
- Nagoya University, Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - R Imai
- Nagoya University, Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - M Yoshida
- Nagoya University, Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - S Shimokata
- Nagoya University, Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - S Adachi
- Nagoya University, Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - T Murohara
- Nagoya University, Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - T Kondo
- Nagoya University, Graduate School of Medicine, Department of Advanced Medicine in Cardiopulmonary Disease, Nagoya, Japan
| |
Collapse
|
36
|
Nakano Y, Imai R, Yoshida M, Shimokata S, Adachi S, Murohara T, Kondo T. Clinical course of pulmonary embolism patients treated with DOACs: comparing prognosis, recurrent thromboembolism, and major bleeding between patients with and without cancer. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Venous thromboembolism (VTE) is the third frequent acute cardiovascular syndrome in the Europe and Japan. Since direct oral anticoagulants (DOACs) are widely used now, the morbidity and mortality of pulmonary embolism (PE) patients especially associated with cancer needs to be re-evaluated.
Purpose
We evaluated the clinical course of patients with PE mainly treated with DOACs.
Methods
This retrospective observational study was conducted in a single center. The data were collected from the medical record of consecutive patients who received inpatient treatment of PE. In this study, we have compared PE patients with cancer (cancer PE) to those without cancer (non-cancer PE) and evaluated the mortality, recurrent of VTE and major bleedings.
Results
In total, 140 patients were enrolled: 94 patients were cancer-related, and 46 patients were without cancer (Table). The type of the tumor in cancer PE patients were as follows: gastric 8 (9%), esophageal 5 (5%), pancreatic 12 (13%), lung 14 (15%), lymphoma 2 (2%), gynecologic 17 (18%), renal 2 (2%), bile duct 8 (9%), colon 12 (13%), and others 17 (18%).
Kaplan-Meier curve showed that the cumulative all-cause mortality was significantly higher in the cancer PE group (35/94 (37%) vs. 2/46 (4%), P<0.001 (log rank), HR 10.3 [95% CI:2.5–43.3]). The cumulative incidence of recurrent VTE was significantly higher in the cancer PE group (7/94 (7%) vs. 0/46, P=0.03 (log rank)). There was no significant difference in the cumulative incidence of major bleeding between the cancer PE group and the non-cancer PE group (8/94 (9%) vs. 5/46 (11%)).
Conclusions
The risk of recurrent VTE was still higher in cancer PE patients compared to non-cancer PE patients, although DOACs were used. Meanwhile the incidence of major bleeding was comparable in both groups, the risk of bleeding might be acceptable with using DOACs especially in cancer PE patients.
Figure 1
Funding Acknowledgement
Type of funding source: None
Collapse
Affiliation(s)
- Y Nakano
- Nagoya University, Graduate School of Medicine, Department of Advanced Medicine in Cardiopulmonary Disease, Nagoya, Japan
| | - R Imai
- Nagoya University, Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - M Yoshida
- Nagoya University, Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - S Shimokata
- Nagoya University, Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - S Adachi
- Nagoya University, Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - T Murohara
- Nagoya University, Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - T Kondo
- Nagoya University, Graduate School of Medicine, Department of Advanced Medicine in Cardiopulmonary Disease, Nagoya, Japan
| |
Collapse
|
37
|
Amioka N, Miyoshi T, Akagi S, Yoshida M, Nakamura K, Morita H, Ito H. Pemafibrate protects the rupture of experimental aortic aneurysm in mice through anti-oxidative stress with induced catalase. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Abdominal aortic aneurysm (AAA) is a life-threatening disease, while effective and preventive medical treatments remain unestablished.
Purpose
The aim of this study was to evaluate the effect of selective peroxi- some proliferator-activated receptor alpha (PPARα) modulator pemafibrate on AAA formation in mice.
Methods
AAA was induced by subcutaneous infusion of angiotensin II (AngII) in apolipoprotein E-deficient mice for 4 weeks. Treatment by pemafibrate or vehicle was started one week before AngII infusion. Oxidative stress was evaluated by dihydroethidium (DHE) staining.
Results
Prognosis after AngII infusion in pemafibrate-treated mice was significantly better than that in vehicle-treated mice (log-rang test, p=0.035) by reducing the occurrence of fatal AAA rupture. Meanwhile pemafibrate did not significantly reduce maximal diameter of the aorta. Histological findings demonstrated that the expression of collagen in adventitia in pemafibrate-treated mice was significantly greater than that in vehicle-treated mice (p<0.05). Oxidative stress in aorta of pemafibrate-treated mice was significantly reduced comparing to vehicle-treated mice, accompanying by the reduction of mRNA expression of matrix metalloproteinase 2, tumor necrosis factor-α, and interleukin-6 (all p<0.05). Catalase expression in abdominal aortic tissue was increased 1.5-fold in mice treated with pemafibrate than in mice treated with vehicle (p=0.032). In human vascular smooth muscle cells (hVSMC), pemafibrate attenuated AngII-induced oxidative stress (p<0.001), which was canceled by administrating small interfering RNA (siRNA) of PPARα (p<0.001). Furthermore, in hVSMC, pemafibrate increased catalase expression significantly (p<0.001), while this increase was significantly suppressed by knockdown of PPAR-α with siRNA. (p<0.001).
Conclusion
Pemafibrate reduced the rupture of AAA in this murine model, which is associated with anti-oxidative stress via catalase induction.
Funding Acknowledgement
Type of funding source: None
Collapse
Affiliation(s)
- N Amioka
- Okayama University Hospital, Okayama, Japan
| | - T Miyoshi
- Okayama University Hospital, Okayama, Japan
| | - S Akagi
- Okayama University Hospital, Okayama, Japan
| | - M Yoshida
- Okayama University Hospital, Okayama, Japan
| | - K Nakamura
- Okayama University Hospital, Okayama, Japan
| | - H Morita
- Okayama University Hospital, Okayama, Japan
| | - H Ito
- Okayama University Hospital, Okayama, Japan
| |
Collapse
|
38
|
Fukano H, Miyama H, Takatsuki S, Hirabayashi A, Suzuki M, Yoshida M, Uwamino Y, Hasegawa N, Hoshino Y. Complete Genome Sequence of Mycolicibacterium sp. Strain NIID-NTM18, Isolated from Cardiac Implantable Electronic Device Infection and Most Similar to Mycolicibacterium litorale. Microbiol Resour Announc 2020; 9:e00830-20. [PMID: 32883792 PMCID: PMC7471387 DOI: 10.1128/mra.00830-20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 08/06/2020] [Indexed: 11/20/2022] Open
Abstract
Mycolicibacterium litorale is a rapidly growing mycobacterial organism with unknown pathogenic features. Here, we report the complete genome sequence of Mycolicibacterium sp. strain NIID-NTM18, which was isolated from a cardiac implantable electronic device infection and which is most similar to M. litorale This sequence will provide essential information for future studies of the pathogenicity of these mycobacteria.
Collapse
Affiliation(s)
- Hanako Fukano
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Hiroshi Miyama
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
| | - Seiji Takatsuki
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
| | - Aki Hirabayashi
- Antimicrobial Resistant Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Masato Suzuki
- Antimicrobial Resistant Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Mitsunori Yoshida
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Yoshifumi Uwamino
- Department of Laboratory Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Naoki Hasegawa
- Center for Infectious Diseases and Infection Control, Keio University School of Medicine, Tokyo, Japan
| | - Yoshihiko Hoshino
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| |
Collapse
|
39
|
Fujimoto N, Kozuki T, Aoe K, Miyamoto Y, Wada S, Harada D, Yoshida M, Sakurai J, Hotta K. 1898P A phase II trial of first-line combination chemotherapy with cisplatin, pemetrexed, and nivolumab for unresectable malignant pleural mesothelioma: JME-001. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
|
40
|
Shirakawa T, Ueda Y, Shimokawa M, Koga F, Nakazawa J, Komori A, Arima S, Fukahori M, Makiyama A, Taguchi H, Honda T, Uneda S, Yoshida M, Shibuki T, Nio K, Ide Y, Ureshino N, Mitsugi K, Otsuka T. P-88 A multicenter analysis of the correlation between overall survival and progression-free survival and the number of chemotherapeutic key drugs used in patients with advanced/unresectable pancreatic cancer: Results from the NAPOLEON study. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.04.170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
|
41
|
Yoshida M, Yokoyama T, Nishii H, Nomiya M. Studies of relationships between overactive bladder and frailty in the elderly. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33119-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
|
42
|
Iyama S, Takada K, Yoshida M, Takahashi D, Kobune M. Acquired amegakaryocytic thrombocytopenic purpura possibly induced by anti-PD-1 antibody. Ann Hematol 2020; 99:1669-1670. [PMID: 32367179 DOI: 10.1007/s00277-020-04053-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 04/22/2020] [Indexed: 12/14/2022]
Affiliation(s)
- Satoshi Iyama
- Department of Hematology, Sapporo Medical University School of Medicine, South-1, West-16, Chuo-ku, Sapporo, 060-8543, Japan.
| | - K Takada
- Department of Hematology, Sapporo Medical University School of Medicine, South-1, West-16, Chuo-ku, Sapporo, 060-8543, Japan.,Department of Medical Oncology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - M Yoshida
- Department of Medical Oncology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - D Takahashi
- Research and Development Department, Central Blood Institute, Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
| | - M Kobune
- Department of Hematology, Sapporo Medical University School of Medicine, South-1, West-16, Chuo-ku, Sapporo, 060-8543, Japan
| |
Collapse
|
43
|
Takahashi M, Uchihara T, Yoshida M, Wakabayashi K, Kakita A, Takahashi H, Toru S, Orimo S. Clinical and pathological features affecting cardiac sympathetic denervation in autopsy-confirmed dementia with Lewy bodies. Eur J Neurol 2020; 27:1155-1163. [PMID: 32239599 DOI: 10.1111/ene.14240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 03/09/2020] [Indexed: 12/01/2022]
Abstract
BACKGROUND AND PURPOSE The aim was to clarify the features affecting cardiac sympathetic denervation in autopsy-confirmed dementia with Lewy bodies (DLB) patients. METHODS Fifty-four autopsy-confirmed DLB patients were enrolled. Tissue samples of the left ventricular anterior wall were immunostained with anti-tyrosine hydroxylase antibody to identify catecholaminergic nerve axons. Immunostained areas were quantified as residual cardiac sympathetic nerve (CSN) axons and the relationship between the degree of residual CSN axons and clinical and neuropathological features was examined. RESULTS Virtually all patients showed small amounts of residual CSN axons (0.87%, range 0.02%-9.98%), with 50 patients (92.6%) showing <2.0% of residual axons. The patients who showed psychological symptoms within the first year of the disease had significantly more residual CSN axons than the remaining patients did (1.50% vs. 0.40%, P < 0.01). Patients with a short disease duration and neocortical-type Lewy body pathology tended to have more preserved CSN axons, although this difference was not statistically significant. Fifty-three patients (98.1%) who had neurofibrillary tangles in the brain and strong concomitant Alzheimer's disease pathology also had statistically significantly more preserved CSN axons. The patient with the most preserved CSN axons showed different characteristics from the results, except for the first symptom. CONCLUSION Psychological symptoms within the first year of the disease, a short disease duration, neocortical-type Lewy body pathology and strong concomitant Alzheimer's disease pathology may be related to mild CSN degeneration in DLB patients. Thus, DLB patients with broad Lewy body pathology in the brain in the early stages may show mild CSN degeneration.
Collapse
Affiliation(s)
- M Takahashi
- Department of Neurology, Kanto Central Hospital of the Mutual Aid Association of Public-School Teachers, Tokyo, Japan
| | - T Uchihara
- Laboratory of Structural Neuropathology, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan.,Department of Neurology, Nitobe-Memorial Nakano General Hospital, Tokyo, Japan
| | - M Yoshida
- Institute for Medical Science of Aging, Aichi Medical University, Aichi, Japan
| | - K Wakabayashi
- Department of Neuropathology, Institute of Brain Science, Hirosaki University Graduate School of Medicine, Aomori, Japan
| | - A Kakita
- Department of Pathology, Brain Research Institute, Niigata University, Niigata, Japan
| | - H Takahashi
- Department of Pathology, Brain Research Institute, Niigata University, Niigata, Japan
| | - S Toru
- Department of Neurology, Nitobe-Memorial Nakano General Hospital, Tokyo, Japan
| | - S Orimo
- Department of Neurology, Kanto Central Hospital of the Mutual Aid Association of Public-School Teachers, Tokyo, Japan
| |
Collapse
|
44
|
Yoshida M, Oohara W, Ichikawa M, Hiratsuka J, Saquilayan GQ, Umeda N, Kojima A, Kashiwagi M. Analysis of the cesium distribution in the JT-60SA negative ion sources for steady long-pulse operation. Rev Sci Instrum 2020; 91:033313. [PMID: 32259933 DOI: 10.1063/1.5131103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 02/27/2020] [Indexed: 06/11/2023]
Abstract
To realize stable negative ion beams for 100 s required in the neutral beam injector of JT-60SA, a physical model to control cesium (Cs) distribution inside the negative ion source has been developed in order to maintain the stable negative ion production at the plasma grid (PG) surface with Cs. In this work, to quantitatively evaluate Cs coverage on the PG, a three-dimensional Cs transportation code was introduced to consider the spatial Cs distribution in the source. The spatial temperature distribution of the chamber wall was also introduced in this model. As a result, the reasonable variation of the Cs coverage for 100 s was obtained, compared to that in the initial model. Based on the modified model, the operational temperature of the chamber wall was proposed to be less than 60 °C to suppress the desorption of Cs in the chamber wall and to sustain the stable negative ion production. In addition, it was also suggested that a slightly higher wall temperature before the operation leads to a decrease in the amount of Cs stored at the chamber wall, resulting in suppression of Cs consumption in the ion source.
Collapse
Affiliation(s)
- M Yoshida
- Division of Electrical, Electronic, and Information Engineering, Yamaguchi University, Ube 755-8611, Japan
| | - W Oohara
- Division of Electrical, Electronic, and Information Engineering, Yamaguchi University, Ube 755-8611, Japan
| | - M Ichikawa
- National Institutes for Quantum and Radiological Science and Technology, 801-1, Mukouyama, Naka 311-0193, Japan
| | - J Hiratsuka
- National Institutes for Quantum and Radiological Science and Technology, 801-1, Mukouyama, Naka 311-0193, Japan
| | - G Q Saquilayan
- National Institutes for Quantum and Radiological Science and Technology, 801-1, Mukouyama, Naka 311-0193, Japan
| | - N Umeda
- National Institutes for Quantum and Radiological Science and Technology, 801-1, Mukouyama, Naka 311-0193, Japan
| | - A Kojima
- National Institutes for Quantum and Radiological Science and Technology, 801-1, Mukouyama, Naka 311-0193, Japan
| | - M Kashiwagi
- National Institutes for Quantum and Radiological Science and Technology, 801-1, Mukouyama, Naka 311-0193, Japan
| |
Collapse
|
45
|
Inoue T, Yoshida M, Zoysa MD, Ishizaki K, Noda S. Design of photonic-crystal surface-emitting lasers with enhanced in-plane optical feedback for high-speed operation. Opt Express 2020; 28:5050-5057. [PMID: 32121733 DOI: 10.1364/oe.385277] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 01/27/2020] [Indexed: 05/27/2023]
Abstract
Photonic-crystal surface-emitting lasers (PCSELs) use the two-dimensional (2D) resonance at the band-edge of a photonic crystal for lasing, and they feature various outstanding functionalities such as high-brightness lasing, arbitrary shaping of beam patterns and on-chip 2D beam steering. In this paper, to investigate the applicability of PCSELs for high-speed operation, we design PCSELs with enhanced in-plane optical feedback, which enable single-mode lasing inside a circular region the diameter of which is less than 10 µm. To realize a strong in-plane confinement of the lasing mode, we increase the one-dimensional coupling coefficients between counter-propagating waves through the careful design of the lattice points. We also introduce an in-plane heterostructure composed of two photonic crystals with different photonic bandgaps and utilize reflection at the boundary of the two photonic crystals in addition to the optical feedback at the band-edge of each photonic crystal. By using three-dimensional finite-difference time-domain method (3D-FDTD), we confirm that the proposed hetero-PCSELs can achieve single-mode lasing operation inside a 9-µm-diameter and possibly realize a 3-dB modulation bandwidth larger than 40 GHz.
Collapse
|
46
|
Hiratsuka J, Kashiwagi M, Ichikawa M, Umeda N, Saquilayan GQ, Tobari H, Watanabe K, Kojima A, Yoshida M. Achievement of high power and long pulse negative ion beam acceleration for JT-60SA NBI. Rev Sci Instrum 2020; 91:023506. [PMID: 32113410 DOI: 10.1063/1.5131302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 01/16/2020] [Indexed: 06/10/2023]
Abstract
Long pulse acceleration of hydrogen negative ion beams with the power density over 70 MW/m2 and the pulse length over 100 s has been demonstrated for the first time by using a multi-aperture 3-stage accelerator. Such long pulse acceleration was achieved by integrating the design of beam optics and voltage holding capability to meet the requirements of JT-60SA. By using the newly designed accelerator for JT-60SA, voltage holding at 500 kV with beam acceleration was stably sustained even after 5 g of cesium was seeded, and heat load on each acceleration grid was reduced below the allowable level for long pulse, less than 5% of total acceleration power. As a result, 500 keV, 154 A/m2 for 118 s beam acceleration was achieved, which satisfies the requirement of the negative ion source for JT-60SA. This pulse length of such high-power density beams is longest in the world. In addition, the result contributes to the long pulse acceleration of multi-stage electrostatic accelerators, such as 1 MeV negative ion accelerator for ITER.
Collapse
Affiliation(s)
- J Hiratsuka
- National Institutes for Quantum and Radiological Science and Technology (QST), 801-1 Mukoyama, Naka 311-0193, Japan
| | - M Kashiwagi
- National Institutes for Quantum and Radiological Science and Technology (QST), 801-1 Mukoyama, Naka 311-0193, Japan
| | - M Ichikawa
- National Institutes for Quantum and Radiological Science and Technology (QST), 801-1 Mukoyama, Naka 311-0193, Japan
| | - N Umeda
- National Institutes for Quantum and Radiological Science and Technology (QST), 801-1 Mukoyama, Naka 311-0193, Japan
| | - G Q Saquilayan
- National Institutes for Quantum and Radiological Science and Technology (QST), 801-1 Mukoyama, Naka 311-0193, Japan
| | - H Tobari
- National Institutes for Quantum and Radiological Science and Technology (QST), 801-1 Mukoyama, Naka 311-0193, Japan
| | - K Watanabe
- National Institutes for Quantum and Radiological Science and Technology (QST), 801-1 Mukoyama, Naka 311-0193, Japan
| | - A Kojima
- National Institutes for Quantum and Radiological Science and Technology (QST), 801-1 Mukoyama, Naka 311-0193, Japan
| | - M Yoshida
- Department of Electrical, Electronic, and Information Engineering, Yamaguchi University, Ube 755-8611, Japan
| |
Collapse
|
47
|
Morita K, Tsuka H, Kimura H, Mori T, Yoshikawa M, Yoshida M, Kimura M, Tsuga K. Oral function and vertical jump height among healthy older people in Japan. Community Dent Health 2019; 36:275-279. [PMID: 31670918 DOI: 10.1922/cdh_4515morita05] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE Vertical jump height and oral function affect the general muscle condition. This study aimed to evaluate the association between vertical jump height and oral function among healthy older individuals. BASIC RESEARCH DESIGN Cross-sectional analytic study. PARTICIPANTS 231 independent older people (mean age, 74.4 ± 5.6 years) who participated in the Kyoto Elders Physical Fitness Measurement Research Project. Individuals with partial or complete edentulousness who did not use a prosthetic device or complained of oral/maxillofacial pain were excluded from the study. INTERVENTIONS Grip strength was measured using a Smedley Hand Dynamometer. To measure masticatory performance, the participants were instructed to chew a gummy jelly on their habitual chewing side (left or right) for 20 s. Occlusal force, contact area, and pressure were also assessed. MAIN OUTCOME MEASURES The outcome variable was vertical jump height. The predictor variables were physical status (age, body mass index, and grip strength), oral status (number of present teeth and denture use), and oral function (masticatory performance, occlusal force, occlusal contact area, occlusal pressure, and tongue pressure). These relationships were evaluated with univariate analysis, and then multiple regression analysis was performed with age as the covariate for each male and female participant. RESULTS Vertical jump height was significantly associated with grip strength in both men and women. Moreover, in women, it was associated with masticatory performance, occlusal force, and occlusal contact area. CONCLUSIONS Vertical jump height was closely associated with oral function among healthy older women.
Collapse
Affiliation(s)
- K Morita
- Assistant Professor, Department of Advanced Prosthodontics, Hiroshima University Graduate School of Biomedical & Health Sciences, Hiroshima, Japan
| | - H Tsuka
- Assistant Professor, Department of Advanced Prosthodontics, Hiroshima University Graduate School of Biomedical & Health Sciences, Hiroshima, Japan
| | - H Kimura
- Clinical Staff, Department of Advanced Prosthodontics, Hiroshima University Graduate School of Biomedical & Health Sciences, Hiroshima, Japan
| | - T Mori
- Assistant Professor, Department of Advanced Prosthodontics, Hiroshima University Graduate School of Biomedical & Health Sciences, Hiroshima, Japan
| | - M Yoshikawa
- Associated Professor, Department of Advanced Prosthodontics, Hiroshima University Graduate School of Biomedical & Health Sciences, Hiroshima, Japan
| | - M Yoshida
- Associated Professor, Department of Advanced Prosthodontics, Hiroshima University Graduate School of Biomedical & Health Sciences, Hiroshima, Japan
| | - M Kimura
- Professor, Department of Health and Medical Sciences, Kyoto Gakuen University, Kyoto, Japan
| | - K Tsuga
- Professor, Department of Advanced Prosthodontics, Hiroshima University Graduate School of Biomedical & Health Sciences, Hiroshima, Japan
| |
Collapse
|
48
|
Soejima S, Kondo K, Tsuboi M, Kishibuchi R, Muguruma K, Tegshee B, Kajiura K, Kawakami Y, Kawakita N, Yoshida M, Takizawa H, Tangoku A, Wusiman N. MA20.02 GAD1 Expression and Its Methylation Become Indicators of Malignant Behavior in Thymic Epithelial Tumor. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
49
|
Kondo K, Tsuboi M, Soejima S, Kawakita N, Toba H, Kawakami Y, Yoshida M, Takizawa H, Tangoku A. P2.03-22 Chromate Exposure Induces DNA Hypermethylation of the Mismatch Repair Gene MLH1 in Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1469] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
50
|
Deguchi T, Hashizume H, Nakajima M, Teraguchi M, Akune T, Yamada H, Tanaka S, Yoshimura N, Nojima M, Yoshida M, Ikegawa S. A population-based study identifies an association of THBS2 with intervertebral disc degeneration. Osteoarthritis Cartilage 2019; 27:1501-1507. [PMID: 31233787 DOI: 10.1016/j.joca.2019.06.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 05/26/2019] [Accepted: 06/03/2019] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To clarify the genetic mechanisms underlying intervertebral disc degeneration (IDD), we examined the associations between single-nucleotide polymorphisms (SNPs) and indicated as coefficient of interaction term (IDD) in a general population in Japan. METHODS This was a cross-sectional study. In 1,605 participants, C2-3 to L5/S1 in the total spine magnetic resonance imaging (MRI) were evaluated using the Pfirrmann's scoring system. Disc scores of 4 and 5 were defined as IDD. Eight SNPs in eight genes associated with IDD were examined at each disc level, considering the non-genetic risk factors of age, sex, and body mass index (BMI). RESULTS The highest odds ratio was found for rs9406328 in the THBS2 gene at disc level T12-L1 (OR 1.27, 95%CI 1.05 to 1.53), and this association was strengthened after adjustment for age using logistic regression (OR 1.37, 95%CI 1.12 to 1.67). Among participants aged <50 years and 50-59, the average IDD score in those with 2 risk alleles of rs9406328 was markedly higher than in those with 0 or 1 risk allele, and the difference is much wider than the elderly participants. It indicates the genetic effect of rs9406328 is stronger in the younger age groups. Finally, multiple linear regression analyses of the association between rs9406328 and IDD, adjusted for age, sex, and BMI at each disc level, showed a statistical interaction between age and the number of risk alleles at C7-T1, T3-4 and T4-T5 as well as T12-L1. CONCLUSION CONCLUSION: The association between rs9406328 in THBS2 and IDD was replicated. The contributions of genetic and environmental factors to IDD differed by disc level.
Collapse
Affiliation(s)
- T Deguchi
- Department of Orthopaedic Surgery, Wakayama Medical University, Wakayama, Japan
| | - H Hashizume
- Department of Orthopaedic Surgery, Wakayama Medical University, Wakayama, Japan.
| | - M Nakajima
- Laboratory of Bone and Joint Diseases, Center for Integrative Medical Sciences, RIKEN, Tokyo, Japan
| | - M Teraguchi
- Department of Orthopaedic Surgery, Wakayama Medical University, Wakayama, Japan
| | - T Akune
- Rehabilitation Services Bureau, National Rehabilitation Center for Persons with Disabilities, Tokorozawa, Japan
| | - H Yamada
- Department of Orthopaedic Surgery, Wakayama Medical University, Wakayama, Japan
| | - S Tanaka
- Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - N Yoshimura
- Department of Preventive Medicine for Locomotive Organ Disorders, 22nd Century Medical & Research Center, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - M Nojima
- Biostatistics & Data Management, Center for Translational Research, The Institute of Medical Science Hospital, The University of Tokyo, Tokyo, Japan
| | - M Yoshida
- Department of Orthopaedic Surgery, Wakayama Medical University, Wakayama, Japan
| | - S Ikegawa
- Laboratory of Bone and Joint Diseases, Center for Integrative Medical Sciences, RIKEN, Tokyo, Japan.
| |
Collapse
|