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Shiraishi M, Nabeshima N, Suzuki K, Fujita M, Iwai S. Endonuclease Q as a robust enhancer for nucleic acid amplification. Anal Biochem 2024; 692:115569. [PMID: 38750682 DOI: 10.1016/j.ab.2024.115569] [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: 03/26/2024] [Revised: 04/30/2024] [Accepted: 05/10/2024] [Indexed: 05/18/2024]
Abstract
Isothermal nucleic acid amplification techniques are attracting increasing attention in molecular diagnosis and biotechnology. However, most existing techniques are complicated by the need for intricate primer design and numerous enzymes and primers. Here, we have developed a simple method, termed NAQ, that employs adding both endonuclease Q (EndoQ) and dUTP/dITP to conventional rolling circle amplification reactions to increase DNA amplification. NAQ does not require intricate primer design or DNA sequence-specific enzymes, and existing isothermal amplification techniques could be readily adapted to include both EndoQ and dUTP/dITP.
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Affiliation(s)
- Miyako Shiraishi
- Department of Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, Japan; Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyamacho, Toyonaka, Osaka, Japan.
| | - Noboru Nabeshima
- Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyamacho, Toyonaka, Osaka, Japan
| | - Keiichiro Suzuki
- Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyamacho, Toyonaka, Osaka, Japan; Institute for Advanced Co-Creation Studies, Osaka University, 1-3 Machikaneyamacho, Toyonaka, Osaka, Japan; Graduate School of Frontier Bioscience, Osaka University, 1-3 Yamadaoka, Suita, Osaka, Japan
| | - Masatoshi Fujita
- Department of Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, Japan
| | - Shigenori Iwai
- Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyamacho, Toyonaka, Osaka, Japan
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Furuno K, Suzuki K, Sakai S. Transduction and Genome Editing of the Heart with Adeno-Associated Viral Vectors Loaded onto Electrospun Polydioxanone Nonwoven Fabrics. Biomolecules 2024; 14:506. [PMID: 38672522 PMCID: PMC11047894 DOI: 10.3390/biom14040506] [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: 03/11/2024] [Revised: 04/05/2024] [Accepted: 04/19/2024] [Indexed: 04/28/2024] Open
Abstract
In this study, we introduce electrospun polydioxanone (PDO) nonwoven fabrics as a platform for the delivery of adeno-associated virus (AAV) vectors for transduction and genome editing by adhering them to organ surfaces, including the heart. AAV vectors were loaded onto the PDO fabrics by soaking the fabrics in a solution containing AAV vectors. In vitro, the amount of AAV vectors loaded onto the fabrics could be adjusted by changing their concentration in the solution, and the number of cells expressing the green fluorescent protein (GFP) encoded by the AAV vectors increased in correlation with the increasing amount of loaded AAV vectors. In vivo, both transduction and genome editing resulted in the observation of GFP expression around AAV vector-loaded PDO fabrics attached to the surfaces of mouse hearts, indicating effective transduction and expression at the target site. These results demonstrate the great potential of electrospun PDO nonwoven fabrics carrying therapeutic AAV vectors for gene therapy.
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Affiliation(s)
- Kotoko Furuno
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka 560-8531, Japan;
| | - Keiichiro Suzuki
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka 560-8531, Japan;
- Institute for Advanced Co-Creation Studies, Osaka University, 1-3 Machikaneyama-cho, Toyonaka 560-8531, Japan
- Graduate School of Frontier Bioscience, Osaka University, 1-3 Yamadaoka, Suita 565-0871, Japan
| | - Shinji Sakai
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka 560-8531, Japan;
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Ayano M, Tsubouchi K, Suzuki K, Kimoto Y, Arinobu Y, Akashi K, Horiuchi T, Okamoto I, Niiro H. Comparing the safety and efficacy of nintedanib starting dose in patients with connective tissue disease-associated interstitial lung diseases. Scand J Rheumatol 2024:1-8. [PMID: 38563202 DOI: 10.1080/03009742.2024.2327159] [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] [Received: 12/15/2023] [Accepted: 03/04/2024] [Indexed: 04/04/2024]
Abstract
OBJECTIVE This study aimed to analyse whether initiating nintedanib treatment at a reduced dose could improve the treatment continuation rate while maintaining efficacy in patients with connective tissue disease (CTD)-associated interstitial lung disease. METHOD In total, 51 patients (age 61.6 ± 13.2 years; 38 women, 13 men) were retrospectively analysed. The primary endpoint was the cumulative discontinuation rate due to adverse events. Secondary endpoints included changes in drug dosage, efficacy evaluated based on annual changes in forced vital capacity (FVC), and safety assessed based on the frequency of adverse events. RESULTS Eighteen patients who started treatment at the standard dose of 300 mg (standard dosage group) were compared with 33 patients who started treatment at a reduced dose (reduced dosage group). Systemic sclerosis was the most common CTD (n = 32), followed by idiopathic inflammatory myopathies and, rarely, rheumatoid arthritis. Both groups exhibited comparable cumulative discontinuation rates due to adverse events and similar frequencies of adverse events. No significant differences were observed in maintenance doses between the two groups; however, patients in the reduced dosage group had a lower cumulative dose for up to 52 weeks than those in the standard dosage group. No significant differences were observed in changes in FVC between the two groups. CONCLUSION There was no evidence for a difference between the two groups in terms of discontinuation rates, efficacy, and safety. To provide further evidence, future studies using more precise dose-escalation protocols are warranted.
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Affiliation(s)
- M Ayano
- Department of Medicine and Biosystemic Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - K Tsubouchi
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - K Suzuki
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Y Kimoto
- Department of Medicine and Biosystemic Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Y Arinobu
- Department of Medicine and Biosystemic Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - K Akashi
- Department of Medicine and Biosystemic Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T Horiuchi
- Department of Internal Medicine, Kyushu University Beppu Hospital, Beppu, Japan
| | - I Okamoto
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - H Niiro
- Department of Medical Education, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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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.
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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
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Liu M, Zhang C, Gong X, Zhang T, Lian MM, Chew EGY, Cardilla A, Suzuki K, Wang H, Yuan Y, Li Y, Naik MY, Wang Y, Zhou B, Soon WZ, Aizawa E, Li P, Low JH, Tandiono M, Montagud E, Moya-Rull D, Rodriguez Esteban C, Luque Y, Fang M, Khor CC, Montserrat N, Campistol JM, Izpisua Belmonte JC, Foo JN, Xia Y. Kidney organoid models reveal cilium-autophagy metabolic axis as a therapeutic target for PKD both in vitro and in vivo. Cell Stem Cell 2024; 31:52-70.e8. [PMID: 38181751 DOI: 10.1016/j.stem.2023.12.003] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 10/15/2023] [Accepted: 12/06/2023] [Indexed: 01/07/2024]
Abstract
Human pluripotent stem cell-derived kidney organoids offer unprecedented opportunities for studying polycystic kidney disease (PKD), which still has no effective cure. Here, we developed both in vitro and in vivo organoid models of PKD that manifested tubular injury and aberrant upregulation of renin-angiotensin aldosterone system. Single-cell analysis revealed that a myriad of metabolic changes occurred during cystogenesis, including defective autophagy. Experimental activation of autophagy via ATG5 overexpression or primary cilia ablation significantly inhibited cystogenesis in PKD kidney organoids. Employing the organoid xenograft model of PKD, which spontaneously developed tubular cysts, we demonstrate that minoxidil, a potent autophagy activator and an FDA-approved drug, effectively attenuated cyst formation in vivo. This in vivo organoid model of PKD will enhance our capability to discover novel disease mechanisms and validate candidate drugs for clinical translation.
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Affiliation(s)
- Meng Liu
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 11 Mandalay Road, Singapore 308232, Singapore
| | - Chao Zhang
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 11 Mandalay Road, Singapore 308232, Singapore
| | - Ximing Gong
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 11 Mandalay Road, Singapore 308232, Singapore
| | - Tian Zhang
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 11 Mandalay Road, Singapore 308232, Singapore
| | - Michelle Mulan Lian
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 11 Mandalay Road, Singapore 308232, Singapore; Human Genetics, Genome Institute of Singapore, Agency for Science, Technology and Research, A∗STAR, Singapore 138672, Singapore
| | - Elaine Guo Yan Chew
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 11 Mandalay Road, Singapore 308232, Singapore; Human Genetics, Genome Institute of Singapore, Agency for Science, Technology and Research, A∗STAR, Singapore 138672, Singapore
| | - Angelysia Cardilla
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 11 Mandalay Road, Singapore 308232, Singapore
| | - Keiichiro Suzuki
- Institute for Advanced Co-Creation Studies, Osaka University, Toyonaka 560-8531, Osaka, Japan; Graduate School of Engineering Science, Osaka University, Toyonaka 560-8531, Osaka, Japan; Graduate School of Frontier Bioscience, Osaka University, Suita 560-8531, Osaka, Japan
| | - Huamin Wang
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 11 Mandalay Road, Singapore 308232, Singapore
| | - Yuan Yuan
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 11 Mandalay Road, Singapore 308232, Singapore; Institute of Special Environmental Medicine, Nantong University, Nantong 226019, Jiangsu, China
| | - Yan Li
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 11 Mandalay Road, Singapore 308232, Singapore
| | - Mihir Yogesh Naik
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 11 Mandalay Road, Singapore 308232, Singapore
| | - Yixuan Wang
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 11 Mandalay Road, Singapore 308232, Singapore
| | - Bingrui Zhou
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 11 Mandalay Road, Singapore 308232, Singapore
| | - Wei Ze Soon
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 11 Mandalay Road, Singapore 308232, Singapore
| | - Emi Aizawa
- Graduate School of Engineering Science, Osaka University, Toyonaka 560-8531, Osaka, Japan
| | - Pin Li
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 11 Mandalay Road, Singapore 308232, Singapore
| | - Jian Hui Low
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 11 Mandalay Road, Singapore 308232, Singapore
| | - Moses Tandiono
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 11 Mandalay Road, Singapore 308232, Singapore; Human Genetics, Genome Institute of Singapore, Agency for Science, Technology and Research, A∗STAR, Singapore 138672, Singapore
| | - Enrique Montagud
- Hospital Clinic of Barcelona, Career Villarroel, 170, 08036 Barcelona, Spain
| | - Daniel Moya-Rull
- Pluripotency for Organ Regeneration (PR Lab), Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), 08028 Barcelona, Spain
| | | | - Yosu Luque
- Hospital Clinic of Barcelona, Career Villarroel, 170, 08036 Barcelona, Spain
| | - Mingliang Fang
- Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China
| | - Chiea Chuen Khor
- Human Genetics, Genome Institute of Singapore, Agency for Science, Technology and Research, A∗STAR, Singapore 138672, Singapore; Duke-National University of Singapore Medical School, 8 College Road, Singapore 169857, Singapore; Singapore Eye Research Institute, 20 College Road Discovery Tower, Level 6 The Academia, Singapore 169856, Singapore
| | - Nuria Montserrat
- Pluripotency for Organ Regeneration (PR Lab), Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), 08028 Barcelona, Spain; University of Barcelona, Barcelona, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig de Lluís Companys, 23, 08010 Barcelona, Spain; Networking Biomedical Research Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Josep M Campistol
- Hospital Clinic of Barcelona, Career Villarroel, 170, 08036 Barcelona, Spain
| | | | - Jia Nee Foo
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 11 Mandalay Road, Singapore 308232, Singapore; Human Genetics, Genome Institute of Singapore, Agency for Science, Technology and Research, A∗STAR, Singapore 138672, Singapore.
| | - Yun Xia
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 11 Mandalay Road, Singapore 308232, Singapore.
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Sato K, Niimi Y, Ihara R, Suzuki K, Iwata A, Iwatsubo T. Usability of a Web-Based Registry for Preclinical Alzheimer's Disease: Implications from a Cross-Sectional Online Survey. J Prev Alzheimers Dis 2024; 11:661-671. [PMID: 38706282 DOI: 10.14283/jpad.2024.48] [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] [Indexed: 05/07/2024]
Abstract
BACKGROUND We have been conducting a Japanese trial-ready cohort web study since 2019 as a web-based online registry to enroll individuals with preclinical Alzheimer's disease to facilitate trials on Alzheimer's disease prevention. The usability of a website might be an important factor in determining user participation and retention. OBJECTIVES We conducted a user questionnaire survey to analyze the usability of the Japanese trial-ready cohort website and user characteristics for future website improvement. DESIGN This was a cross-sectional prospective observational study. SETTING Online survey using Google Forms. PARTICIPANTS Among the Japanese trial-ready cohort web study participants, we enrolled those who provided consent to participate in the study and had completed one or more Cognitive Function Instrument tests before May 2, 2023. We sent an invitation e-mail, including the questionnaire web address, to eligible participants on July 21 and 22, 2023. MEASUREMENTS We analyzed the questionnaire answers, including the system usability scale score and time of response (in 24 h). We also compared the respondents' characteristics with that of all the Japanese trial-ready cohort web study participants to identify features associated with an increased/decreased response rate to the questionnaire. RESULTS Among the 10,112 Japanese trial-ready cohort web study participants that we sent invitation e-mails, we received 1,574 eligible responses (15.6%) within three weeks of the response acceptance period. The mean system usability scale score was 67.6, and no difference in system usability scale scores was observed in terms of age or sex. Approximately half of the respondents of the Japanese trial-ready cohort web study heard about it online, whereas one-fourth heard about it via newspapers. Contribution to drug development for dementia treatment was the most frequent motivation for participating in the Japanese trial-ready cohort web study (51.5%), followed by participation in the latest research (48.1%), concerns about self-memory (43.4%), and a family history of dementia (34.6%). Female respondents responded approximately 1.5 h later than male respondents. Lastly, those who had participated in the Japanese trial-ready cohort onsite study, were in their 70's, or had a larger number of Cognitive Function Instrument or Cogstate tests completion history were more likely to respond to the current online survey (relative risk of response > 1). CONCLUSIONS We conducted an online survey using Google Forms for participants in the Japanese trial-ready cohort web study to determine the usability. The results of this study might help to improve the user experience of the Japanese trial-ready cohort website itself, increase the web study registrants, maintain user retention, facilitate future online surveys, and serve as a reference for other web-based registries of presymptomatic disease status.
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Affiliation(s)
- K Sato
- Kenichiro Sato and Takeshi Iwatsubo, Department of Neuropathology, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, Japan, 113-8655, E-mail: ; , Phone: +81-03-3815-5411
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Furuno K, Elvitigala KCML, Suzuki K, Sakai S. Local delivery of adeno-associated viral vectors with electrospun gelatin nanofiber mats. J Biomed Mater Res B Appl Biomater 2024; 112:e35345. [PMID: 37902433 DOI: 10.1002/jbm.b.35345] [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: 05/27/2023] [Revised: 08/28/2023] [Accepted: 10/14/2023] [Indexed: 10/31/2023]
Abstract
Adeno-associated viral (AAV) vectors play a significant role in gene therapy, yet the typical delivery methods, like systemic and local AAV injections, often lead to unintended off-target distribution and tissue damage due to injection. In this study, we propose a localized delivery approach for AAV vectors utilizing electrospun gelatin nanofiber mats, which are cross-linked with glutaraldehyde. The AAV vectors, which encoded a green fluorescent protein (GFP), were loaded onto the mats by immersing them in a solution containing the vectors. The amount of AAV vector loaded onto the mats increased as the vector concentration in the solution increased. The loaded AAV vector was steadily released into the cell culture medium over 3 days. The mats incubated for 3 days also showed the ability to transduce into the cells cultured on them. We evaluated the effectiveness of this delivery system by attaching the mats to mouse livers. GFP expression was visible on the surface of the liver beneath the attached mats, but not in areas in direct contact with the mats. These findings suggest that the attachment of AAV vector-loaded electrospun gelatin nanofiber mats to a target site present a promising solution for localized gene delivery while reducing off-target distribution.
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Affiliation(s)
- Kotoko Furuno
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Osaka, Japan
| | | | - Keiichiro Suzuki
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Osaka, Japan
- Institute for Advanced Co-Creation Studies, Osaka University, Osaka, Japan
- Graduate School of Frontier Bioscience, Osaka University, Osaka, Japan
| | - Shinji Sakai
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Osaka, Japan
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Hirata K, Yamamoto Y, Hatanaka K, Kinoshita K, Abiko S, Suzuki K, Tanaka T, Ishibe E, Nakajima K, Naruse H, Umehara M, Tsuruga Y, Nakanishi K, Munakata S, Shimoyama N. Hepatobiliary and pancreatic: Tiny pigmented intra-hepatic ducts stones as the cause of jaundice and liver failure. J Gastroenterol Hepatol 2023; 38:2052. [PMID: 37680105 DOI: 10.1111/jgh.16350] [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: 05/10/2023] [Revised: 07/26/2023] [Accepted: 08/26/2023] [Indexed: 09/09/2023]
Affiliation(s)
- K Hirata
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - Y Yamamoto
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - K Hatanaka
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - K Kinoshita
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - S Abiko
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - K Suzuki
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - T Tanaka
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - E Ishibe
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - K Nakajima
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - H Naruse
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - M Umehara
- Department of Gastroenterological Surgery, Hakodate Municipal Hospital, Hakodate, Japan
| | - Y Tsuruga
- Department of Gastroenterological Surgery, Hakodate Municipal Hospital, Hakodate, Japan
| | - K Nakanishi
- Department of Gastroenterological Surgery, Hakodate Municipal Hospital, Hakodate, Japan
| | - S Munakata
- Department of Cancer Pathology, Hakodate Municipal Hospital, Hakodate, Japan
| | - N Shimoyama
- Department of Cancer Pathology, Hakodate Municipal Hospital, Hakodate, Japan
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Higuchi M, Suzuki K, Kaminishi Y. Acute limb ischemia due to arterial dissection caused by mechanical compression of vascular tissue by the robotic arm during robot-assisted surgery: a case report. QJM 2023; 116:789-791. [PMID: 37225399 DOI: 10.1093/qjmed/hcad105] [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: 05/19/2023] [Indexed: 05/26/2023] Open
Affiliation(s)
- M Higuchi
- Department of Cardiology, Mito Saiseikai General Hospital, 3-3-10 Futabadai, Mito, Ibaraki Prefecture 311-4145, Japan
| | - K Suzuki
- Department of Cardiovascular Surgery, Mito Saiseikai General Hospital, 3-3-10 Futabadai, Mito Ibaraki Prefecture 311-4145, Japan
| | - Y Kaminishi
- Department of Cardiovascular Surgery, Mito Saiseikai General Hospital, 3-3-10 Futabadai, Mito Ibaraki Prefecture 311-4145, Japan
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Tanaka H, Mizuma K, Nakamura Y, Hirata A, Miyazaki J, Suzuki K, Seta H, Watanabe H, Suzuki T, Watanabe R, Murayama N, Okamura T, Nakamura S. Predicting habitual water intake from lifestyle questions. Eur Rev Med Pharmacol Sci 2023; 27:8829-8841. [PMID: 37782192 DOI: 10.26355/eurrev_202309_33803] [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] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
OBJECTIVE Previous studies have used selective recall and descriptive dietary record methods, requiring considerable effort for assessing food and water intake. This study created a simplified lifestyle questionnaire to predict habitual water intake (SQW), accurately and quickly assessing the habitual water intake. We also evaluated the validity using descriptive dietary records as a cross-sectional study. SUBJECTS AND METHODS First, we used crowdsourcing and machine learning to collect data, predict water intake records, and create questionnaires. We collected 305 lifestyle-related questions as predictor variables and selective recall methods for assessing water intake as an outcome variable. Random forests were used for the machine learning models because of their interpretability and accurate estimation. Random forest and single regression correlation analysis were augmented by the synthetic minority oversampling that trained the model. We separated the data by sex and evaluated our model using unseen hold-out testing data, predicting the individual and overall habitual water intake from various sources, including non-alcoholic beverages, alcohol, and food. RESULTS We found a 0.60 Spearman's correlation coefficient for total water intake between the predicted and the selective recall method values, reflecting the target value to be achieved. This question set was then used for feasibility tests. The descriptive dietary record method helped to obtain a ground-truth value. We categorized the data by gender, season, and source: non-alcoholic beverages, alcohol, food, and total water intake, and the correlation was confirmed. Consequently, our results showed a Pearson's correlation coefficient of 0.50 for total water intake between the predicted and the selective recall method values. CONCLUSIONS We hypothesize that dissemination of SQW can lead to better health management by easily determining the habitual water intake.
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Affiliation(s)
- H Tanaka
- Division of Information Science, Nara Institute of Science and Technology, Ikoma, Nara, Japan.
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11
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Saeki A, Takao Y, Suzuki K, Hirose M. Outcomes of Pain Management Training for the Fourth- and Fifth-Year Medical Students. Pain Res Manag 2023; 2023:6080769. [PMID: 37664418 PMCID: PMC10473891 DOI: 10.1155/2023/6080769] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 08/15/2023] [Accepted: 08/16/2023] [Indexed: 09/05/2023]
Abstract
Pain management is a major medical issue. However, current medical education in Japan is inadequate with regard to training students to properly assess patients with acute and chronic pain and plan their treatment. Therefore, starting in 2019, Hyogo Medical University established a multidisciplinary educational system to better train medical students to provide pain care. The course, called clinical pain study, is offered to fourth- and fifth-year medical students. Fourth-year students learn the scientific aspects of pain through clinical practice. In this study, we assessed students' understanding of pain management based on the results of pretests and posttests performed before and after their practicum. These tests were administered from November 2019 to April 2022 to 263 fourth- and fifth-year medical students who took the clinical pain study class. The test results were compared in terms of the percentage of correct answers and the total score for each question using McNemar's chi-square test and paired t-tests, respectively. The results showed a significant improvement in the mean of the total score, confirming the improvement in medical students' knowledge (6.43 vs. 7.35 points; p < 0.001). Based on the results, overall, pain education at the university has had positive outcomes and will therefore be continued in the future.
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Affiliation(s)
- Ayano Saeki
- Department of Anesthesiology and Pain Medicine, Hyogo Medical University, Faculty of Medicine, Nishinomiya, Hyogo, Japan
| | - Yumiko Takao
- Department of Anesthesiology and Pain Medicine, Hyogo Medical University, Faculty of Medicine, Nishinomiya, Hyogo, Japan
| | - Keiichiro Suzuki
- Department of Biochemistry, Hyogo Medical University, Faculty of Medicine, Nishinomiya, Hyogo, Japan
| | - Munetaka Hirose
- Department of Anesthesiology and Pain Medicine, Hyogo Medical University, Faculty of Medicine, Nishinomiya, Hyogo, Japan
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12
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Amadutsumi T, Urashima Y, Urashima K, Suzuki K, Kurachi K, Nishihara M, Neo M, Myotoku M, Kobori T, Obata T. Semisolid Enteral Nutrients Alter the Pharmacokinetics of Orally Administered Levetiracetam in Rats. Pharmazie 2023; 78:117-121. [PMID: 37592422 DOI: 10.1691/ph.2023.3575] [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] [Subscribe] [Scholar Register] [Indexed: 08/19/2023]
Abstract
Enteral nutrients (ENs) affect the plasma drug concentration of orally co-administered drugs, particularly those of antiepileptic drugs, such as phenytoin and carbamazepine. However, few studies have reported the interactions of levetiracetam (LEV), an upcoming antiepileptic drug, with ENs. In this study we aimed to investigate the pharmacokinetics of LEV in 55 rats after oral co-administration of LEV with liquid or semisolid ENs. Compared with the control group, co-administration with Terumeal ® Soft significantly decreased the plasma LEV concentration at 0.5, 1, and 2 h and area under the plasma concentration-time curve from 0 to 3 h (AUC0→3h) (P < 0.01). However, the AUC0→3h of LEV remained unchanged following the administration of Terumeal ® Soft 2 h after the initial LEV administration. Moreover, co-administration with semisolid Racol® NF delayed the absorption of LEV without decreasing the AUC0→3h, whereas liquid Racol ® NF did not alter LEV pharmacokinetics. Thus, co-administration of LEV with Terumeal® Soft reduced the absorption of LEV from the gastrointestinal tract, which was prevented by administering Terumeal ® Soft 2 h after LEV administration. Semisolid Racol ® NF altered LEV pharmacokinetics without decreasing its gastrointestinal absorption. Our findings suggested that careful monitoring of the plasma LEV levels is necessary when co-administering LEV with Terumeal ® Soft, semisolid Racol ® NF, or any other semisolid ENs, to prevent the inadvertent effects of the interaction between LEV and ENs.
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Affiliation(s)
| | - Y Urashima
- Laboratory of Clinical Pharmaceutics, Faculty of Pharmacy, Osaka Ohtani University, 3-11-1 Nishikiorikita, Tondabayashi, Osaka 584-8540, Japan Tokio Obata, Laboratory of Clinical Pharmaceutics, Faculty of Pharmacy, Osaka Ohtani University, 3-11-1 Nishikiorikita, Tondabayashi, Osaka 584-8540, Japan ,
| | | | | | | | | | | | | | | | - T Obata
- Laboratory of Clinical Pharmaceutics, Faculty of Pharmacy, Osaka Ohtani University, 3-11-1 Nishikiorikita, Tondabayashi, Osaka 584-8540, Japan
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Kawai T, Shimohira M, Nakayama K, Sato T, Ohta K, Suzuki K, Sawada Y, Wei Ng K, Huei Leong S, Hiwatashi A. Abstract No. 230 Robot-Assisted CT-Guided Biopsy with an Artificial Intelligence-Based Needle-Path Generator: A Phantom Study. J Vasc Interv Radiol 2023. [DOI: 10.1016/j.jvir.2022.12.291] [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: 02/26/2023] Open
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14
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Kodera T, Takeuchi RF, Takahashi S, Suzuki K, Kassai H, Aiba A, Shiozawa S, Okano H, Osakada F. Modeling the marmoset brain using embryonic stem cell-derived cerebral assembloids. Biochem Biophys Res Commun 2023; 657:119-127. [PMID: 37002985 DOI: 10.1016/j.bbrc.2023.03.019] [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] [Received: 02/21/2023] [Accepted: 03/08/2023] [Indexed: 03/13/2023]
Abstract
Studying the non-human primate (NHP) brain is required for the translation of rodent research to humans, but remains a challenge for molecular, cellular, and circuit-level analyses in the NHP brain due to the lack of in vitro NHP brain system. Here, we report an in vitro NHP cerebral model using marmoset (Callithrix jacchus) embryonic stem cell-derived cerebral assembloids (CAs) that recapitulate inhibitory neuron migration and cortical network activity. Cortical organoids (COs) and ganglionic eminence organoids (GEOs) were induced from cjESCs and fused to generate CAs. GEO cells expressing the inhibitory neuron marker LHX6 migrated toward the cortical side of CAs. COs developed their spontaneous neural activity from a synchronized pattern to an unsynchronized pattern as COs matured. CAs containing excitatory and inhibitory neurons showed mature neural activity with an unsynchronized pattern. The CAs represent a powerful in vitro model for studying excitatory and inhibitory neuron interactions, cortical dynamics, and their dysfunction. The marmoset assembloid system will provide an in vitro platform for the NHP neurobiology and facilitate translation into humans in neuroscience research, regenerative medicine, and drug discovery.
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Shimohira M, Kawai T, Ohta K, Suzuki K, Nakayama K, Hiwatashi A. Abstract No. 162 Pulmonary Arteriovenous Malformations: Which Factors Are Associated with Symptomatic Neurologic Complications in Solitary Lesions? J Vasc Interv Radiol 2023. [DOI: 10.1016/j.jvir.2022.12.217] [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: 02/26/2023] Open
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16
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Akaba Y, Takahashi S, Suzuki K, Kosaki K, Tsujimura K. miR-514a promotes neuronal development in human iPSC-derived neurons. Front Cell Dev Biol 2023; 11:1096463. [PMID: 36824367 PMCID: PMC9941156 DOI: 10.3389/fcell.2023.1096463] [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: 11/12/2022] [Accepted: 01/26/2023] [Indexed: 02/10/2023] Open
Abstract
Proper development and function of the central nervous system require precise regulation of gene expression. MicroRNAs (miRNAs), a group of small non-coding RNAs that can negatively regulate gene expression at the post-transcriptional level, are critical regulators of neuronal development, and dysregulation of microRNAs has been implicated in various neurological disorders. Changes in microRNA expression and repertoire are related to the emergence of social and behavioral variations in closely related primates, including humans, during evolution. MicroRNA-514a (miR-514a) is an X-linked miRNA that is conserved in species with higher social and cognitive functions, and frequent tandem duplications of miR-514a have been found in primate genomes. Here, we demonstrate that miR-514a plays a crucial role in neuronal development in neurons derived from human induced pluripotent stem cells (iPSCs). Overexpression of miR-514a increased dendritic length, soma size, and activity levels of mammalian target of rapamycin (mTOR) signaling in induced pluripotent stem cell-derived neurons, whereas blocking of endogenous miR-514a inhibited neuronal development. Furthermore, we performed a functional analysis of the miR-514a variation found during primate evolution, to investigate the impact of miR-514a sequence variation and associated changes in expression on brain development during evolution. We found that mutation in miR-514a significantly reduced the expression of the mature form and abolished the effects observed when native miR-514a was expressed. Our findings provide new insights into the functional role of miR-514a in the regulation of neuronal development and evolution of primate brain development.
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Affiliation(s)
- Yuichi Akaba
- Group of Brain Function and Development, Neuroscience Institute of the Graduate School of Science, Nagoya University, Nagoya, Aichi, Japan,Research Unit for Developmental Disorders, Institute for Advanced Research, Nagoya University, Nagoya, Aichi, Japan,Department of Pediatrics, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
| | - Satoru Takahashi
- Department of Pediatrics, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
| | - Keiichiro Suzuki
- Institute for Advanced Co-Creation Studies, Osaka University, Osaka, Japan,Graduate School of Engineering Science, Osaka University, Osaka, Japan,Graduate School of Frontier Bioscience, Osaka University, Osaka, Japan
| | - Kenjiro Kosaki
- Center for Medical Genetics, Keio University School of Medicine, Tokyo, Japan
| | - Keita Tsujimura
- Group of Brain Function and Development, Neuroscience Institute of the Graduate School of Science, Nagoya University, Nagoya, Aichi, Japan,Research Unit for Developmental Disorders, Institute for Advanced Research, Nagoya University, Nagoya, Aichi, Japan,*Correspondence: Keita Tsujimura,
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Suzuki K, Matsumoto K, Takenaka M, Aiba T. Altered Pharmacological Efficacy of Phenobarbital with the Treatment of 7,8-Dihydroxyflavone, an Agonist of Tropomyosin Receptor Kinase B, in Rats. Biol Pharm Bull 2023; 46:86-94. [PMID: 36596528 DOI: 10.1248/bpb.b22-00617] [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] [Indexed: 01/02/2023]
Abstract
From our previous observation that the anesthetic effects of phenobarbital potentiate in rats with a decreased cerebral protein expression of the potassium chloride cotransporter KCC2 (SLC12A5), an in vivo study was conducted to clarify whether the pharmacological effect of phenobarbital alters by stimulating the cerebral tropomyosin receptor kinase B (TrkB) that is known to down-regulate the KCC2 protein expression. The stimulation was performed in rats with repetitious intraperitoneal administration of a TrkB agonist, namely 7,8-dihydroxyflavone (DHF). After that, the rats underwent an intraventricular infusion of phenobarbital using a dwelled cannula, and the onset time of the phenobarbital-induced general anesthesia was determined. In addition, their brain tissues were excised and cerebral cortices were collected. Then, subcellular fractions were prepared and the cerebral expression of various proteins involving the anesthetic effects of phenobarbital was examined. It was demonstrated that phenobarbital induced general anesthesia about 2 times faster in rats receiving the DHF treatment than in control rats, and that the phenobarbital amount in the brain tissue at the onset time of anesthesia was lower in rats with the treatment. Western blotting showed that the cerebral protein expression of KCC2 decreases, and the phosphorylation of the TrkB protein increases with the DHF treatment. These observations indicate that the anesthetic effects of phenobarbital potentiate with the TrkB stimulation and the resultant decrease in the cerebral KCC2 protein expression. The results also suggest that the TrkB protein and its phosphorylation status may be a key modulator of the pharmacological efficacy of phenobarbital.
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Affiliation(s)
- Keiichiro Suzuki
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
| | - Kazuya Matsumoto
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
| | - Misa Takenaka
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
| | - Tetsuya Aiba
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
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Hidaka R, Masuda Y, Ogawa K, Tanaka T, Kanazawa M, Suzuki K, Stading M, Iijima K, Matsuo K. Impact of the Comprehensive Awareness Modification of Mouth, Chewing and Meal (CAMCAM) Program on the Attitude and Behavior Towards Oral Health and Eating Habits as Well as the Condition of Oral Frailty: A Pilot Study. J Nutr Health Aging 2023; 27:340-347. [PMID: 37248757 DOI: 10.1007/s12603-023-1913-1] [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: 02/19/2023] [Accepted: 03/29/2023] [Indexed: 05/31/2023]
Abstract
OBJECTIVES Preserving sufficient oral function and maintaining aadequate nutrition are essential for preventing physical frailty and the following long-term care. We recently developed the 6-month Comprehensive Awareness Modification of Mouth, Chewing And Meal (CAMCAM) program, in which participants gather monthly to learn about oral health and nutrition while eating a textured lunch together. This study examined whether the CAMCAM program could improve attitude and behavior towards oral health, mastication, and diet as well as ameliorate oral frailty in community-dwelling older adults. DESIGN Single-arm pre-post comparison study. SETTING AND PARTICIPANTS A total of 271 community-dwelling adults (72.3 ± 5.7 years of age; 159 women [58.7%]) in 4 Japanese municipalities were recruited, of which 249 participants (92%) were assessed at the final evaluation. INTERVENTION Participants gathered once a month at community centers to learn about oral health and nutrition while eating a "munchy" textured lunch containing proper nutrition. MEASUREMENTS Oral frailty, frailty, and eating behavior were evaluated with the Oral Frailty Index-8 (OFI-8), Kihon checklist (KCL), and CAMCAM checklist, respectively. Participants were divided into Oral frailty (OF) and Robust groups according to OFI-8 scores. The differences in KCL and CAMCAM checklist results between the OF and Robust groups were statistically tested along with changes in scores after the program. RESULTS KCL and CAMCAM checklist scores were significantly lower in the OF group at the initial assessment. OFI-8 and KCL findings were significantly improved in the OF group after completing the program (all P <0.05). Regarding the CAMCAM checklist, awareness of chewing improved significantly in the Robust group (P=0.009), with a similar tendency in the OF group (P=0.080). CONCLUSION The findings of this pilot study suggest that the CAMCAM program may improve both oral and systemic frailty in addition to attitudes towards chewing, oral health, and meals, especially in individuals with oral frailty. The CAMCAM program merits expansion as a community-based frailty prevention program.
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Affiliation(s)
- R Hidaka
- Koichiro Matsuo, Department of Oral Health Sciences for Community Welfare, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo, Tokyo 113-8549, Japan, Phone: +81-3-5803-4545, E-mail:
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19
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Nishi Y, Murakami Y, Teshima S, Tsukano K, Otsuka M, Hirata H, Tsuchiya M, Suzuki K. Endotoxin activity and leukocytic STAT3 mRNA alterations differ according to age in lipopolysaccharide-challenged calves. Res Vet Sci 2022; 152:300-306. [DOI: 10.1016/j.rvsc.2022.08.028] [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] [Received: 12/22/2021] [Revised: 08/26/2022] [Accepted: 08/27/2022] [Indexed: 11/27/2022]
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20
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Suzuki K, Nishio N, Kimura H, Tokura T, Kishi S, Ozaki N, Fujimoto Y, Sone M. Comparison of quality of life and psychological distress in patients with tongue cancer undergoing a total/subtotal glossectomy or extended hemiglossectomy and free flap transfer: a prospective evaluation. Int J Oral Maxillofac Surg 2022; 52:621-629. [PMID: 36470693 DOI: 10.1016/j.ijom.2022.11.010] [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] [Received: 08/27/2022] [Revised: 11/18/2022] [Accepted: 11/23/2022] [Indexed: 12/03/2022]
Abstract
The aim of this study was to assess changes in the quality of life and psychological distress of patients with tongue cancer undergoing total/subtotal glossectomy (TG) or extended hemiglossectomy (HG) and free flap transfer. Differences between the two groups were compared using the Short Form 8-Item Health Survey (SF-8) and Hospital Anxiety and Depression Scale (HADS). Of the 43 patients with tongue cancer, 24 (56%) underwent TG and 19 (44%) underwent HG. The general health and social functioning scores in the SF-8 and depression in the HADS were significantly worse in the TG group than in the HG group at 12 months after surgery, indicating that patients in the TG group may experience social isolation and psychological distress, and have difficulty in employability even 12 months after surgery. In contrast, all items of the SF-8 in the HG group were nearly equal to those in the general population. Due to the extensive psychological impact on patients with tongue cancer who are planned for an extended resection, curative surgery with free flap transfer and multidisciplinary psychiatric support are essential to improve quality of life and manage psychological distress.
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Furuno K, Suzuki K, Sakai S. Gelatin-Based Electrospun Nanofibers Cross-Linked Using Horseradish Peroxidase for Plasmid DNA Delivery. Biomolecules 2022; 12:1638. [PMID: 36358988 PMCID: PMC9687400 DOI: 10.3390/biom12111638] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 10/09/2022] [Revised: 10/29/2022] [Accepted: 11/03/2022] [Indexed: 09/24/2023] Open
Abstract
The delivery of nucleic acids is indispensable for tissue engineering and gene therapy. However, the current approaches involving DNA/RNA delivery by systemic and local injections face issues such as clearance, off-target distribution, and tissue damage. In this study, we report plasmid DNA (pDNA) delivery using gelatin electrospun nanofibers obtained through horseradish peroxidase (HRP)-mediated insolubilization. The nanofibers were obtained through the electrospinning of an aqueous solution containing gelatin possessing phenolic hydroxyl (Ph) moieties (Gelatin-Ph) and HRP with subsequent HRP-mediated cross-linking of the Ph moieties by exposure to air containing 16 ppm H2O2 for 30 min. Then, Lipofectamine/pDNA complexes were immobilized on the nanofibers through immersion in the solution containing the pDNA complexes, resulting in transfection and sustained delivery of pDNA. Cells cultured on the resultant nanofibers expressed genome-editing molecules including Cas9 protein and guide RNA (gRNA), resulting in targeted gene knock-in and knock-out. These results demonstrated the potential of Gelatin-Ph nanofibers obtained through electrospinning and subsequent HRP-mediated cross-linking for gene therapy and tissue regeneration by genome editing.
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Affiliation(s)
- Kotoko Furuno
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka 560-8531, Japan
| | - Keiichiro Suzuki
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka 560-8531, Japan
- Institute for Advanced Co-Creation Studies, Osaka University, 1-3 Machikaneyama-cho, Toyonaka 560-8531, Japan
- Graduate School of Frontier Bioscience, Osaka University, 1-3 Yamadaoka, Suita 565-0871, Japan
| | - Shinji Sakai
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka 560-8531, Japan
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22
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Giorgetti A, Gu Y, Suzuki K, Li M. Editorial: Developmental models 2.0. Front Cell Dev Biol 2022; 10:1055139. [PMID: 36313545 PMCID: PMC9597865 DOI: 10.3389/fcell.2022.1055139] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 09/29/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
- Alessandra Giorgetti
- Regenerative Medicine Program, Institut d’Investigació Biomèdica de Bellvitge (IDIBELL), Department of Pathology and Experimental Therapeutics, Faculty of Medicine and Health Sciences, Barcelona University, Barcelona, Spain
- *Correspondence: Alessandra Giorgetti, ; Ying Gu, ; Keiichiro Suzuki, ; Mo Li,
| | - Ying Gu
- BGI-Shenzhen, Shenzhen, China
- *Correspondence: Alessandra Giorgetti, ; Ying Gu, ; Keiichiro Suzuki, ; Mo Li,
| | - Keiichiro Suzuki
- Institute for Advanced Co-Creation Studies, Osaka University, Suita, Japan
- Graduate School of Engineering Science, Osaka University, Toyonaka, Japan
- Graduate School of Frontier Bioscience, Osaka University, Suita, Japan
- *Correspondence: Alessandra Giorgetti, ; Ying Gu, ; Keiichiro Suzuki, ; Mo Li,
| | - Mo Li
- Bioscience Program, Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
- *Correspondence: Alessandra Giorgetti, ; Ying Gu, ; Keiichiro Suzuki, ; Mo Li,
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Hirata K, Naruse H, Yamamoto Y, Hatanaka K, Kinoshita K, Abiko S, Suzuki K, Nakajima K, Katagiri M, Takano M, Ozasa M, Umemura M, Nakajima S, Aoyama K, Sasaki T, Kuwatani M, Sakamoto N, Tanikawa S, Okazaki N, Tanaka S. Gastrointestinal: Rare malignant biliary stricture with rapid progression. J Gastroenterol Hepatol 2022; 37:1839. [PMID: 35307882 DOI: 10.1111/jgh.15802] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 12/21/2021] [Accepted: 01/12/2022] [Indexed: 12/09/2022]
Affiliation(s)
- K Hirata
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - H Naruse
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - Y Yamamoto
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - K Hatanaka
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - K Kinoshita
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - S Abiko
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - K Suzuki
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - K Nakajima
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - M Katagiri
- Department of Gastroenterology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - M Takano
- Department of Gastroenterology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - M Ozasa
- Department of Gastroenterology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - M Umemura
- Department of Gastroenterology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - S Nakajima
- Department of Gastroenterology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - K Aoyama
- Department of Gastroenterology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - T Sasaki
- Department of Gastroenterology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - M Kuwatani
- Department of Gastroenterology and Hepatology, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
| | - N Sakamoto
- Department of Gastroenterology and Hepatology, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
| | - S Tanikawa
- Department of Cancer Pathology, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | - N Okazaki
- Department of Cancer Pathology, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | - S Tanaka
- Department of Cancer Pathology, Hokkaido University Faculty of Medicine, Sapporo, Japan
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Yuan B, Zhou X, Suzuki K, Ramos-Mandujano G, Wang M, Tehseen M, Cortés-Medina LV, Moresco JJ, Dunn S, Hernandez-Benitez R, Hishida T, Kim NY, Andijani MM, Bi C, Ku M, Takahashi Y, Xu J, Qiu J, Huang L, Benner C, Aizawa E, Qu J, Liu GH, Li Z, Yi F, Ghosheh Y, Shao C, Shokhirev M, Comoli P, Frassoni F, Yates JR, Fu XD, Esteban CR, Hamdan S, Izpisua Belmonte JC, Li M. Author Correction: Wiskott-Aldrich syndrome protein forms nuclear condensates and regulates alternative splicing. Nat Commun 2022; 13:5291. [PMID: 36075901 PMCID: PMC9458650 DOI: 10.1038/s41467-022-32875-z] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Affiliation(s)
- Baolei Yuan
- Bioscience Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Xuan Zhou
- Bioscience Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Keiichiro Suzuki
- Gene Expression Laboratory, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA.,Institute for Advanced Co-Creation Studies, Graduate School of Engineering Science, Osaka University, Osaka, Japan
| | - Gerardo Ramos-Mandujano
- Bioscience Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Mengge Wang
- Bioscience Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Muhammad Tehseen
- Bioscience Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Lorena V Cortés-Medina
- Bioscience Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - James J Moresco
- Department of Cell Biology, Scripps Research Institute, La Jolla, CA, 92037, USA
| | - Sarah Dunn
- The Waitt Advanced Biophotonics Core Facility, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Reyna Hernandez-Benitez
- Gene Expression Laboratory, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA.,Altos Labs, Inc. 5510 Morehouse Drive, Suite 300, San Diego, CA, 92121, USA
| | - Tomoaki Hishida
- Gene Expression Laboratory, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA.,Laboratory of Biological Chemistry, School of Pharmaceutical Sciences, Wakayama Medical University, 25-1 Shitibancho, Wakayama, Wakayama, 640-8156, Japan
| | - Na Young Kim
- Gene Expression Laboratory, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Manal M Andijani
- Bioscience Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Chongwei Bi
- Bioscience Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Manching Ku
- Next-generation sequencing core, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Yuta Takahashi
- Gene Expression Laboratory, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA.,Life Science Center, Tsukuba Advanced Research Alliance, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, 305-8577, Japan
| | - Jinna Xu
- Bioscience Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Jinsong Qiu
- Department of Cellular & Molecular Medicine, University of California at San Diego, La Jolla, CA, 92093, USA
| | - Ling Huang
- Integrative Genomics and Bioinformatics Core, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Christopher Benner
- Integrative Genomics and Bioinformatics Core, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Emi Aizawa
- Gene Expression Laboratory, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA.,Institute for Advanced Co-Creation Studies, Graduate School of Engineering Science, Osaka University, Osaka, Japan
| | - Jing Qu
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Guang-Hui Liu
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Zhongwei Li
- Gene Expression Laboratory, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA.,University of Southern California, 1333 San Pablo Street, MMR 618, Los Angeles, CA, 90033, USA
| | - Fei Yi
- Gene Expression Laboratory, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA.,Ambys Medicines, 131 Oyster Point Blvd. Suite 200, South San Francisco, CA, 94080, USA
| | - Yanal Ghosheh
- Bioscience Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Changwei Shao
- Department of Cellular & Molecular Medicine, University of California at San Diego, La Jolla, CA, 92093, USA
| | - Maxim Shokhirev
- Integrative Genomics and Bioinformatics Core, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Patrizia Comoli
- Pediatric Hematology/Oncology and Cell Factory, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Francesco Frassoni
- Department of Research Laboratories and Director of Center for Stem Cell and Cell Therapy, Instituto G. Gaslini Children Hospital Scientific Institute, 16147, Genova, Italy
| | - John R Yates
- Department of Cell Biology, Scripps Research Institute, La Jolla, CA, 92037, USA
| | - Xiang-Dong Fu
- Department of Cellular & Molecular Medicine, University of California at San Diego, La Jolla, CA, 92093, USA
| | - Concepcion Rodriguez Esteban
- Gene Expression Laboratory, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA.,Altos Labs, Inc. 5510 Morehouse Drive, Suite 300, San Diego, CA, 92121, USA
| | - Samir Hamdan
- Bioscience Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Juan Carlos Izpisua Belmonte
- Bioscience Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia. .,Gene Expression Laboratory, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA. .,Altos Labs, Inc. 5510 Morehouse Drive, Suite 300, San Diego, CA, 92121, USA.
| | - Mo Li
- Bioscience Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia.
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25
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Uchida S, Hattori A, Fukui M, Matsunaga T, Takamochi K, Suzuki K. EP02.03-025 Long-Term Oncological Outcomes and Risk Factors of Recurrence After Segmentectomy for Primary Lung Cancer. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.381] [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: 11/17/2022]
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26
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Broadley D, van Lessen M, Takeoka A, Arai R, Suzuki K, Abe A, Nagahama T, Takaoka A, Funk W, Erdmann H, Bíró T, Bertolini M. 640 Exploring the synergic effects of a plant and a peptide on hair follicle pigmentation. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.651] [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: 11/28/2022]
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27
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Furuno K, Suzuki K, Sakai S. Gelatin nanofiber mats with Lipofectamine/plasmid DNA complexes for in vitro genome editing. Colloids Surf B Biointerfaces 2022; 216:112561. [PMID: 35576881 DOI: 10.1016/j.colsurfb.2022.112561] [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: 03/14/2022] [Revised: 04/26/2022] [Accepted: 05/08/2022] [Indexed: 10/18/2022]
Abstract
Gelatin electrospun nanofiber mats are gaining interest for applications in biomaterials science, such as tissue engineering and drug/gene delivery systems. In this study, we report the use of electrospun gelatin nanofiber mats for plasmid DNA (pDNA) delivery. Gelatin nanofiber mats were insolubilized via cross-linking with glutaraldehyde. On the cross-linked mats, human embryonic kidney-derived HEK293 cells demonstrated high viability for 7 days of culture (>95%) and were able to proliferate during that time. The Lipofectamine/pDNA complexes were immobilized on the mats through immersion in a solution, and HEK293 cells cultured on these mats expressed GFP for 7 days. Furthermore, HEK293 cells did not express GFP via the pDNA complexes released from the mats because the ability to deliver pDNA into the cells was lost. Since the mats could be used to transfect multiple types of pDNA into the cells simultaneously, we have achieved targeted genome editing using the mats. These data highlight the potential of gelatin nanofiber mats with Lipofectamine/pDNA complexes for local gene therapy via pDNA delivery as well as genome editing.
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Affiliation(s)
- Kotoko Furuno
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan
| | - Keiichiro Suzuki
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan; Institute for Advanced Co-Creation Studies, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan; Graduate School of Frontier Bioscience, Osaka University, 1-3 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Shinji Sakai
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan.
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28
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Yoshihara D, Fujiwara N, Eguchi H, Sakiyama H, Suzuki K. Iron deficiency aggravates DMNQ-induced cytotoxicity via redox cycling in kidney-derived cells. Free Radic Res 2022; 56:544-554. [PMID: 36469660 DOI: 10.1080/10715762.2022.2154668] [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] [Indexed: 12/12/2022]
Abstract
Iron, an essential element for most of living organisms, participates in many biological functions. Since iron is redox-active transition metal, it is known that excessive levels stimulate the formation of reactive oxygen species (ROS) and exacerbate cytotoxicity. An iron deficiency is the most common nutritional deficiency disorder in the world (about 30% of the population) and is more common than cases of iron overload. However, the effects of iron deficiency on ROS-induced cytotoxicity and the maintenance of intracellular redox homeostasis are not fully understood. The present study reports on an evaluation of the effects of iron deficiency on cytotoxicity induced by several ROS generators. In contrast to hydrogen peroxide and erastin, the cytotoxicity of 2,3-dimethoxy-1,4-naphthoquinone (DMNQ), a redox cycling agent that induces intracellular superoxide anion formation, was exacerbated by iron deficiency. Cytochrome b5 reductase was identified as a candidate enzyme responsible for the redox cycling of DMNQ under conditions of iron depletion. Moreover, the DMNQ-induced intracellular accumulation of ROS and a decrease in NADH/NAD+ ratios were enhanced by an iron deficiency. These negative changes were found to be ameliorated by overexpressing NAD(P)H:quinone oxidoreductase 1 (NQO1) in kidney-derived cells that originally showed a very low expression of NQO1. These results indicate that NQO1 plays a protective role against redox cycling quinone-mediated cytotoxicity under iron-depleted conditions. This is because NQO1 generates less-toxic hydroquinones via the two-electron reduction of quinones. The collective findings reported herein demonstrate that not only an iron overload but also an iron deficiency exacerbates ROS-mediated cytotoxicity.
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Affiliation(s)
- Daisaku Yoshihara
- Department of Biochemistry, School of Medicine, Hyogo Medical University, Nishinomiya, Hyogo, Japan
| | - Noriko Fujiwara
- Department of Biochemistry, School of Medicine, Hyogo Medical University, Nishinomiya, Hyogo, Japan
| | - Hironobu Eguchi
- Department of Biochemistry, School of Medicine, Hyogo Medical University, Nishinomiya, Hyogo, Japan
| | - Haruhiko Sakiyama
- Department of Biochemistry, School of Medicine, Hyogo Medical University, Nishinomiya, Hyogo, Japan
| | - Keiichiro Suzuki
- Department of Biochemistry, School of Medicine, Hyogo Medical University, Nishinomiya, Hyogo, Japan
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29
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Yuan B, Zhou X, Suzuki K, Ramos-Mandujano G, Wang M, Tehseen M, Cortés-Medina LV, Moresco JJ, Dunn S, Hernandez-Benitez R, Hishida T, Kim NY, Andijani MM, Bi C, Ku M, Takahashi Y, Xu J, Qiu J, Huang L, Benner C, Aizawa E, Qu J, Liu GH, Li Z, Yi F, Ghosheh Y, Shao C, Shokhirev M, Comoli P, Frassoni F, Yates JR, Fu XD, Esteban CR, Hamdan S, Li M, Izpisua Belmonte JC. Wiskott-Aldrich syndrome protein forms nuclear condensates and regulates alternative splicing. Nat Commun 2022; 13:3646. [PMID: 35752626 PMCID: PMC9233711 DOI: 10.1038/s41467-022-31220-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Accepted: 06/06/2022] [Indexed: 11/09/2022] Open
Abstract
The diverse functions of WASP, the deficiency of which causes Wiskott-Aldrich syndrome (WAS), remain poorly defined. We generated three isogenic WAS models using patient induced pluripotent stem cells and genome editing. These models recapitulated WAS phenotypes and revealed that WASP deficiency causes an upregulation of numerous RNA splicing factors and widespread altered splicing. Loss of WASP binding to splicing factor gene promoters frequently leads to aberrant epigenetic activation. WASP interacts with dozens of nuclear speckle constituents and constrains SRSF2 mobility. Using an optogenetic system, we showed that WASP forms phase-separated condensates that encompasses SRSF2, nascent RNA and active Pol II. The role of WASP in gene body condensates is corroborated by ChIPseq and RIPseq. Together our data reveal that WASP is a nexus regulator of RNA splicing that controls the transcription of splicing factors epigenetically and the dynamics of the splicing machinery through liquid-liquid phase separation.
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Affiliation(s)
- Baolei Yuan
- Bioscience Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Xuan Zhou
- Bioscience Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Keiichiro Suzuki
- Gene Expression Laboratory, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA.,Institute for Advanced Co-Creation Studies, Graduate School of Engineering Science, Osaka University, Osaka, Japan
| | - Gerardo Ramos-Mandujano
- Bioscience Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Mengge Wang
- Bioscience Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Muhammad Tehseen
- Bioscience Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Lorena V Cortés-Medina
- Bioscience Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - James J Moresco
- Department of Cell Biology, Scripps Research Institute, La Jolla, CA, 92037, USA
| | - Sarah Dunn
- The Waitt Advanced Biophotonics Core Facility, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Reyna Hernandez-Benitez
- Gene Expression Laboratory, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA.,Altos Labs, Inc. 5510 Morehouse Drive, Suite 300, San Diego, CA, 92121, USA
| | - Tomoaki Hishida
- Gene Expression Laboratory, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA.,Laboratory of Biological Chemistry, School of Pharmaceutical Sciences, Wakayama Medical University, 25-1 Shitibancho, Wakayama, Wakayama, 640-8156, Japan
| | - Na Young Kim
- Gene Expression Laboratory, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Manal M Andijani
- Bioscience Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Chongwei Bi
- Bioscience Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Manching Ku
- Next-generation sequencing core, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Yuta Takahashi
- Gene Expression Laboratory, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA.,Life Science Center, Tsukuba Advanced Research Alliance, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, 305-8577, Japan
| | - Jinna Xu
- Bioscience Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Jinsong Qiu
- Department of Cellular & Molecular Medicine, University of California at San Diego, La Jolla, CA, 92093, USA
| | - Ling Huang
- Integrative Genomics and Bioinformatics Core, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Christopher Benner
- Integrative Genomics and Bioinformatics Core, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Emi Aizawa
- Gene Expression Laboratory, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA.,Institute for Advanced Co-Creation Studies, Graduate School of Engineering Science, Osaka University, Osaka, Japan
| | - Jing Qu
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Guang-Hui Liu
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Zhongwei Li
- Gene Expression Laboratory, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA.,University of Southern California, 1333 San Pablo Street, MMR 618, Los Angeles, CA, 90033, USA
| | - Fei Yi
- Gene Expression Laboratory, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA.,Ambys Medicines, 131 Oyster Point Blvd. Suite 200, South San Francisco, CA, 94080, USA
| | - Yanal Ghosheh
- Bioscience Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Changwei Shao
- Department of Cellular & Molecular Medicine, University of California at San Diego, La Jolla, CA, 92093, USA
| | - Maxim Shokhirev
- Integrative Genomics and Bioinformatics Core, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Patrizia Comoli
- Pediatric Hematology/Oncology and Cell Factory, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Francesco Frassoni
- Department of Research Laboratories and Director of Center for Stem Cell and Cell Therapy, Instituto G. Gaslini Children Hospital Scientific Institute, 16147, Genova, Italy
| | - John R Yates
- Department of Cell Biology, Scripps Research Institute, La Jolla, CA, 92037, USA
| | - Xiang-Dong Fu
- Department of Cellular & Molecular Medicine, University of California at San Diego, La Jolla, CA, 92093, USA
| | - Concepcion Rodriguez Esteban
- Gene Expression Laboratory, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA.,Altos Labs, Inc. 5510 Morehouse Drive, Suite 300, San Diego, CA, 92121, USA
| | - Samir Hamdan
- Bioscience Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Mo Li
- Bioscience Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia.
| | - Juan Carlos Izpisua Belmonte
- Bioscience Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia. .,Gene Expression Laboratory, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA, 92037, USA. .,Altos Labs, Inc. 5510 Morehouse Drive, Suite 300, San Diego, CA, 92121, USA.
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30
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Kuwayama R, Suzuki K, Nakamura J, Aizawa E, Yoshioka Y, Ikawa M, Nabatame S, Inoue KI, Shimmyo Y, Ozono K, Kinoshita T, Murakami Y. Establishment of mouse model of inherited PIGO deficiency and therapeutic potential of AAV-based gene therapy. Nat Commun 2022; 13:3107. [PMID: 35661110 PMCID: PMC9166810 DOI: 10.1038/s41467-022-30847-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 05/20/2022] [Indexed: 11/09/2022] Open
Abstract
Inherited glycosylphosphatidylinositol (GPI) deficiency (IGD) is caused by mutations in GPI biosynthesis genes. The mechanisms of its systemic, especially neurological, symptoms are not clarified and fundamental therapy has not been established. Here, we report establishment of mouse models of IGD caused by PIGO mutations as well as development of effective gene therapy. As the clinical manifestations of IGD are systemic and lifelong lasting, we treated the mice with adeno-associated virus for homology-independent knock-in as well as extra-chromosomal expression of Pigo cDNA. Significant amelioration of neuronal phenotypes and growth defect was achieved, opening a new avenue for curing IGDs.
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Affiliation(s)
- Ryoko Kuwayama
- Yabumoto Department of Intractable disease research, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan.,Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Keiichiro Suzuki
- Graduate School of Frontier Bioscience, Osaka University, Osaka, Japan.,Graduate School of Engineering Science, Osaka University, Osaka, Japan.,Institute for Advanced Co-Creation Studies, Osaka University, Osaka, Japan
| | - Jun Nakamura
- Graduate School of Frontier Bioscience, Osaka University, Osaka, Japan
| | - Emi Aizawa
- Graduate School of Engineering Science, Osaka University, Osaka, Japan
| | - Yoshichika Yoshioka
- Graduate School of Frontier Bioscience, Osaka University, Osaka, Japan.,Center for Information and Neural Networks, National Institute of Information and Communications Technology (NICT) and Osaka University, Osaka, Japan.,Center for Quantum Information and Quantum Biology, Osaka University, Osaka, Japan
| | - Masahito Ikawa
- Department of Experimental Genome Research, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Shin Nabatame
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Ken-Ichi Inoue
- Systems Neuroscience Section, Department of Neuroscience, Primate Research Institute, Kyoto University, Kyoto, Japan
| | | | - Keiichi Ozono
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Taroh Kinoshita
- Yabumoto Department of Intractable disease research, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan.,Immunoglycobiology, WPI Immunology Frontier Research Center, Osaka University, Osaka, Japan
| | - Yoshiko Murakami
- Yabumoto Department of Intractable disease research, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan.
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31
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Murata O, Suzuki K, Takeuchi T. AB0545 THYMUS VARIANTS ON IMAGING IN PATIENTS WITH PRIMARY SJÖGREN’S SYNDROME AND POLYMYOSITIS/DERMATOMYOSITIS PATIENTS. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.4255] [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
BackgroundThe thymus, a primary lymphoid organ, plays a crucial role in immune system homeostasis [1,2]. Although several studies of an association between radiographic thymus variants and serological features in systemic autoimmune diseases such as systemic scleroderma, have been reported [3-6], information in patients with other systemic autoimmune disease, especially in primary Sjögren’s syndrome (pSS) or polymyositis/dermatomyositis (PM/DM) patients, is quite limited.ObjectivesWe investigated the association between radiographic thymus variants and clinical and immunological features in patients with pSS and PM/DM, and clarified its significance.MethodsPatients with pSS and PM/DM were randomly selected from all patients who had visited our department and underwent chest CT scan between April 2009 and March 2019. Patients with thymoma or thymic cyst and those aged less than 30 years were excluded. Thymic enlargement and thymus attenuation score in axial images of CT scans were quantitatively interpreted. We defined thymic enlargement as a thickness of more than 13 mm and graded the score by a four-point scale (score 0-3) according to previous studies [7, 8]. Association with radiographic thymus variants and clinical and immunological features was statistically analyzed.Results72 pSS and 47 PM/DM patients were enrolled. 90% and 63.8% were women and mean age was 62.7 ± 12.2 and 56.2 ± 13.7 years in pSS and PM/DM patients, respectively. Thymic enlargement was found in 16 (22.2%) and 14 (29.8%) patients with pSS and PM/DM, respectively. Thymus attenuation (score ≥ 2) was found in 11 (15.3%) and 9 (19.1%) patients with pSS and PM/DM, respectively. These findings were more frequent than in non-connective tissue diseases patients (9.1% and 9.1%, respectively). In pSS patients, radiographic thymus variants, both thymic enlargement and the thymus attenuation score, were significantly positively associated with body weight (P < 0.0073 and 0.037, respectively). Although there was no significant difference between immunological features such as titres of serum RF, the ratio of RF-positivity, SS-A antibody-positivity or SS-B antibody-positivity, and radiographic thymus variants, titres of serum RF tended to be positively associated with thymic enlargement (P = 0.057). In PM/DM patients, thymic enlargement was significantly positively associated with titres of serum RF (P = 0.046), and the thymus attenuation score was significantly positively associated with titres of serum IgG (P = 0.042) and significantly negatively associated with age (P = 0.033). There was no significant difference between the ratio of myositis specific antibody-positivity and radiographic thymus variants.ConclusionRadiographic thymus variants were frequently observed in pSS and PM/DM patients, and particularly, in case of PM/DM, may reflect an abnormal immune response involved in the pathogenesis.References[1]Gorozny JJ, et al. Trends Immunol 2001;22:251-255,[2]Seddon B, et al. Immunol Today 2000;21:94-99,[3]Truffault F, et al. Clin Rev Allergy Immunol 2017; 52:108-124,[4]Berrih-Aknin S, et al. J Autoimmun 2014;52:90-110,[5]Colaci M, et al. Rheumatology 2014;53:732-36,[6]Murata O, et al. Rheumatology 2021;60:5595-5600,[7]Ackman JB, et al. Radiology 2013;268:245-53,[8]Naidich DP, et al. Philadelphia: Lippincott-Raven 1999:57-73.AcknowledgementsI have no acknowledgements to declare.Disclosure of InterestsNone declared
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Ichimura T, Ogawa C, Murata H, Miyahara K, Yuge S, Tsukioka R, Kado K, Yoshimura T, Suzuki K, Nomura H, Shimizu H. Community pharmacists' measurement of health-related quality of life in outpatients taking high-risk drugs. Pharmazie 2022; 77:202-206. [PMID: 35751159 DOI: 10.1691/ph.2022.1914] [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] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Patients experiencing severe side effects when taking high-risk drugs may have a significantly reduced health-related quality of life (QOL); therefore, it is important to identify changes in the health-related QOL in these patients. This study aimed to determine the health-related QOL in community pharmacy outpatients taking high-risk drugs. This prospective observational study was conducted in 29 community pharmacies with 71 pharmacists in 12 regions and cities in Japan from October to December 2020 and 760 patients were enrolled. Using descriptive questionnaires of EuroQOL-5-dimensions-5-levels (EQ-5D-5L), community pharmacists obtained health-related QOL data from outpatients taking high-risk drugs. The mean health-related QOL of all outpatients was 0.869. The health-related QOL decreased with increasing age. The outpatient health-related QOL was 0.700, 0.763, 0.785, and 0.817 when taking antiepileptic, antidepressant, digitalis, and antiarrhythmic drugs, respectively, which was lower than the average health-related QOL of all outpatients. Mobility and pain/ discomfort accounted for a large proportion of the decline in the health-related QOL with increasing age. There were no significant differences in personal care with increasing age; however, the number of outpatients with mobility, normal activity, and pain challenges decreased with age. In contrast, outpatients aged <65 years with anxiety/depression showed a lower than overall average health-related QOL. To the best of our knowledge, this is the first study in Japan to report an investigation by community pharmacists regarding health-related QOL assessment in outpatients taking high-risk drugs.
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Affiliation(s)
- T Ichimura
- Study group for Comprehensive Cost-Effectiveness Analysis of Pharmacotherapy, Koto-ku, Tokyo; Department of Hospital Pharmaceutics, School of Pharmacy, Showa University, Shinagawa-ku, Tokyo
| | - C Ogawa
- Study group for Comprehensive Cost-Effectiveness Analysis of Pharmacotherapy, Koto-ku, Tokyo; Department of Pharmacy, National Hospital Organization Tokyo Medical Center, Meguro-ku, Tokyo
| | - H Murata
- Study group for Comprehensive Cost-Effectiveness Analysis of Pharmacotherapy, Koto-ku, Tokyo; QOL Co., Ltd., Minato-ku, Tokyo
| | | | - S Yuge
- Nihon Chouzai Co., Ltd., Chiyoda-ku, Tokyo
| | - R Tsukioka
- AIN PHARMACIEZ INC., Sapporo city, Hokkaido
| | - K Kado
- KRAFT Inc., Chiyoda-ku, Tokyo
| | | | - K Suzuki
- Division of Applied Pharmaceutical Education and Research, Hoshi University, Shinagawa-ku, Tokyo
| | - H Nomura
- Department of Date Science / Pharmacy, National Cancer Center Hospital East, Kashiwa city, Chiba
| | - H Shimizu
- Study group for Comprehensive Cost-Effectiveness Analysis of Pharmacotherapy, Koto-ku, Tokyo; Department of Pharmacy, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Koto-ku, Tokyo; Department of Nursing, School of Nursing and Rehabilitation Sciences, Showa University, Shinagawa-ku, Tokyo, Japan;,
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Kajio N, Suzuki K, Matsumoto K, Iijima H, Nakamura S, Ishizawa Y, Inamo J, Takeshita M, Yoshimoto K, Kaneko Y, Takeuchi T. POS0530 MOLECULAR SIGNATURE IN SUSTAINED CLINICAL REMISSION INDUCED BY TOCILIZUMAB IN PATIENTS WITH RHEUMATOID ARTHRITIS. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.1680] [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
BackgroundClinical remission is a clinical goal in the treatment of rheumatoid arthritis (RA). Sustained, biologics-free and true remission is an unachieved goal of the “treat-to-target” approach in most patients, and the determinants for achievement are still unclear. In our recent prospective study using multiomics analysis, we proposed that a molecular signature in peripheral whole blood can be a predictor for subsequent disease activity or activities of daily living.1 We also showed that tocilizumab (TCZ) induced deep clinical remission associated with gene expression in peripheral CD4+ T cells.2ObjectivesTo consolidate and expand our hypothesis, we investigated the significance of molecular signatures in sustained remission in a larger scale cohort.MethodsTo build and validate the diagnostic model, we collected 73 peripheral blood samples from 30 patients with active RA, 30 patients in clinical remission induced by TCZ and 13 healthy controls. We then collected another 23 samples at a point before TCZ was halted due to sustained clinical remission. In total, 96 samples were analyzed by a multiomics platform, which included RNA sequencing and comprehensive proteomics.ResultsWe first developed an optimized partial least-squares regression (PLSR) model using data from 5,436 genes and 255 proteins extracted in our previous model.1 The odds ratio in the model clearly reflected the clinical state with high fidelity (Figure 1). In that study, TCZ induced nearly half of the patients with clinical remission into molecular remission, with an odds ratio of less than zero. To clarify the characteristics of the molecular signature at sustained clinical remission under TCZ continuation, 23 samples were applied to the model. The odds ratio was largely the same as that for clinical remission. Next, we investigated the association with disease flare after cessation of TCZ. At some points before cessation, the median odds ratio in patients who experienced disease flare after stopping TCZ tended to be higher than that in patients with sustained remission after stopping TCZ in the transcriptomics model but not in the proteomics model. Thirty-five differentially expressed genes were identified between the two groups under the conditions of a >1.5-fold change and P-value<0.05.Figure 1.Odds ratio in the partial least-squares regression model using transcriptomics (A) and proteomics (B) data from rheumatoid arthritis and healthy control groupsConclusionOur larger scale study validated the idea in our previous study that TCZ induces molecular remission. A certain substantial gap associated with prognosis after quitting TCZ may exist as a molecular signature of sustained clinical remission induced by TCZ. These multiomics data sets enable us to understand sustained clinical remission at a molecular level.References[1]Nat Commun. 9(1):2775, 2018, 2) Sci Rep.11(1):16691, 2021Graphs:AcknowledgementsWe acknowledge funding by Chugai Pharmaceutical Co., Ltd.Disclosure of InterestsNobuhiko Kajio: None declared, Katsuya Suzuki Speakers bureau: AbbVie, AsahiKasei, Astellas, Ayumi, Bristol-Myers Squibb, Chugai, Eisai, Eli Lilly, Gilead, Janssen, Mitsubishi Tanabe, Pfizer, Sanofi, Viatris, Consultant of: AbbVie, Asahi Kasei, Janssen, Pfizer, Grant/research support from: Chugai, Daiichi-Sankyo, Eli Lilly, Mitsubishi Tanabe, Ono, Takeda, Kotaro Matsumoto: None declared, Hiroshi Iijima: None declared, Seiji Nakamura: None declared, Yohei Ishizawa: None declared, Jun Inamo: None declared, Masaru Takeshita: None declared, Keiko Yoshimoto: None declared, Yuko Kaneko Speakers bureau: Chugai, Consultant of: Chugai, Grant/research support from: Chugai, Tsutomu Takeuchi Speakers bureau: Chugai, Consultant of: Chugai, Grant/research support from: Chugai.
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Hiramoto K, Saito S, Hanaoka H, Suzuki K, Kikuchi J, Fukui H, Takano R, Miyoshi F, Seki N, Sugahara K, Kaneko Y, Takeuchi T. POS0459 APTAMER-BASED PROTEOMIC SCREENING IN IDENTIFICATION OF PATHOGENIC SIGNAL PATHWAY AND URINARY BIOMARKERS ASSOCIATED WITH HISTOLOGICAL FINDINGS IN LUPUS NEPHRITIS. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.2698] [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
BackgroundThe current gold standard for the diagnosis and classification, assessment of the severity of lupus nephritis (LN) is a renal biopsy. On the other hand, since the procedure is highly invasive, there is a pressing need to identify biomarkers for predicting the presence and its histological severity of LN. In addition, the background pathogenesis of each histological findings is not clearly understood.ObjectivesThe purpose of this study was to elucidate the urine biomarkers for predicting the presence and the severity of histological findings of LN, and to search the pathogenic signal pathway.MethodsUrine samples from 24 biopsy-proven active LN patients were initially screened for the levels of 1305 distinct human proteins using an aptamer-based-targeted proteomic assay. We developed histological scoring system based on ISN/RPS lesion definitions and classification, NIH activity and chronicity score. Two experienced evaluators assessed the histological scores. Cluster analysis and pathway analysis were performed.ResultsA total of 24 LN patients were included: 20 (83%) had a proliferative histological class (III or IV +/-V), 4 (17%) pure membranous (V). Through cluster analysis, several histological subgroups were extracted according to correlation with each histological finding, and proteins which corelated with each histological scores were analyzed. We focused on two subgroups: one in which including active glomerular histological findings (endocapillary hypercellularity, karyorrhexis, neutrophil infiltration, subendothelial deposits) and the other in which including interstitial histological findings (interstitial inflammation, interstitial fibrosis, tubular atrophy). Histological scores in the former group showed strong positive correlation with protein group which contained 59 proteins (Group A), including CCL21, CXCL10, VCAM1. Histological scores in the latter group corelated with another protein group which contained 85 proteins (Group B), including MCP-1, CCL11. Ingenuity Pathway Analysis showed 16 pathways (PDGF Signaling, Granulocyte Adhesion and Diapedesis, etc) were upregulated in Group A and 11 pathways (IL-17 signaling, Fibrosis signaling pathway, etc) upregulated in Group B. Among group A and group B urine proteins, those showed strong correlation between respective histological findings were validated with ELISA assays.ConclusionAn aptamer-based-targeted proteomic assay screening by combining with renal histological scoring system suggested several urine proteins can predict the severity and the presence of major renal histological findings, and suggested to be related with the pathogenesis in patients with LN.Disclosure of InterestsKazuoto Hiramoto: None declared, Shuntaro Saito: None declared, Hironari Hanaoka: None declared, Katsuya Suzuki: None declared, Jun Kikuchi: None declared, Hiroyuki Fukui: None declared, Ryo Takano Employee of: Mitsubishi Tanabe Pharma Corporation Sohyaku, Fumihiko Miyoshi Employee of: Mitsubishi Tanabe Pharma Corporation Sohyaku, Noriyasu Seki Employee of: Mitsubishi Tanabe Pharma Corporation Sohyaku, Kunio Sugahara Employee of: Mitsubishi Tanabe Pharma Corporation Sohyaku, Yuko Kaneko: None declared, Tsutomu Takeuchi: None declared.
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Kondo Y, Takeshita M, Uwamino Y, Namkoong H, Saito S, Kikuchi J, Hanaoka H, Suzuki K, Hasegawa N, Murata M, Kaneko Y. POS0257 COMPARISON OF SARS-CoV-2 VACCINE RESPONSE IN PATIENTS WITH INFLAMMATORY RHEUMATIC DISEASE; mRNA-1273 VACCINE INDUCES HIGHER HUMORAL IMMUNOGENICITY THAN BNT162b2. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.4214] [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
BackgroundThe SARS-CoV-2 messenger RNA (mRNA) vaccines BNT162b2 (Pfizer-BioNTech) and mRNA-1273 (Moderna) have benefitted all countries amid the coronavirus disease 2019 (COVID-19) crisis. Whereas both of them have shown efficacy in preventing COVID-19 illness in healthy participants, there is paucity of data about immunogenicity and safety of mRNA COVID-19 vaccines in patients with autoimmune, inflammatory rheumatic disease. Recent observational studies evaluated mainly BNT162b2, suggesting that glucocorticoids, immunosuppressive agents impair SARS-CoV-2 vaccine responses. However, difference in immune reactions and safety between BNT162b2 and mRNA-1273 have not been clarified in patients with inflammatory rheumatic diseases.ObjectivesTo assess humoral and T cell immune responses and safety profiles after two doses of different mRNA vaccine against SARS-CoV-2; BNT162b2 and mRNA-1273.MethodsWe enrolled consecutive, previously uninfected patients with inflammatory rheumatic diseases receiving mRNA vaccine including BNT162b2 and mRNA-1273. Healthy participants receiving BNT162b2 were also recruited as control. Blood samples were obtained 3weeks, 2 months, 3 months, 4 months, and 6 months after second dose of vaccines. We measured titres of neutralizing antibodies against SARS-CoV-2 and calculated seroconversion rates to evaluate humoral responses. We also assessed T-cell immunity responses by using interferon releasing assay against SARS-CoV-2 in a part of the patients. Answers to questionnaires about adverse reactions were obtained from participants.ResultsA total of 974 patients with inflammatory rheumatic diseases and healthy 630 control participants were enrolled. Among them, 796 patients received BNT162b2, 178 patients received mRNA-1273, and all control participants received BNT162b2. Seroconversion rates and neutralizing antibody titres 3 weeks after vaccination were significantly higher in patients with mRNA-1273 and healthy participants with BNT162b2 compared with patients with BNT162b2; seroconversion rates, 97.2% vs 99.5% vs 83.3%, p<0.001; titers of neutralizing antibodies, 29.4±33.9 IU/mL vs 23.9±14.2 IU/mL vs 10.8±16.5 IU/mL, p<0.001, respectively. On another front, T cell reaction against SARS-CoV-2 was similar in both patients with mRNA-1273 and BNT162b2; interferon gamma levels for antigen 1, 1.2±2.1 IU/mL vs 0.8±2.5 IU/mL, p=0.23; and for antigen 2, 1.4±1.9 IU/mL vs 1.0±2.1 IU/mL, p=0.11, respectively. Regarding adverse reaction of each mRNA vaccine, the frequency of systemic adverse reactions including fever and general fatigue are also significantly higher in patients with mRNA-1273 and healthy controls than patients with BNT162b2; fever, 48.0% vs 44.9% vs 10.2%, p<0.001; general fatigue, 70.4% vs 61.8% vs 31.2%, p<0.001, respectively). In longitudinal measurement, neutralizing antibody titres in patients with BNT162b2 were decreased more rapidly than those in healthy controls; 3.3±3.2 IU/mL in patients with BNT162b2 at 4 months and 3.2±4.7 IU/mL in healthy controls with BNT162b2 at 6 months. We identified age, glucocorticoid dose (prednisolone > 7.5mg), use of immunosuppressants including methotrexate, mycophenolate, cyclophosphamide, and tacrolimus are associated with rapid attenuation of humoral responses in patients with BNT162b2.ConclusionOur results demonstrated a significant higher humoral immunogenicity and frequency of systemic adverse reaction of the SARS-CoV-2 mRNA-1273 (Moderna) compared with the BNT162b2 (Pfizer-BioNTech) in inflammatory rheumatic disease patients. Glucocorticoid and immunosuppressive agents impaired induction and sustention of neutralizing antibody, and earlier third booster vaccination may be required within 4 months, especially for those receiving BNT162b2.References[1]Steensels D, Pierlet N, Penders J et al. JAMA. 2021;326(15):1533–1535.[2]Friedman MA, Curtis JR and Winthrop KL. Ann Rheum Dis 2021;80:1255–1265.Disclosure of InterestsNone declared
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Hashimoto T, Aikawa S, Akaishi T, Asano H, Bazzi M, Bennett DA, Berger M, Bosnar D, Butt AD, Curceanu C, Doriese WB, Durkin MS, Ezoe Y, Fowler JW, Fujioka H, Gard JD, Guaraldo C, Gustafsson FP, Han C, Hayakawa R, Hayano RS, Hayashi T, Hays-Wehle JP, Hilton GC, Hiraiwa T, Hiromoto M, Ichinohe Y, Iio M, Iizawa Y, Iliescu M, Ishimoto S, Ishisaki Y, Itahashi K, Iwasaki M, Ma Y, Murakami T, Nagatomi R, Nishi T, Noda H, Noumi H, Nunomura K, O'Neil GC, Ohashi T, Ohnishi H, Okada S, Outa H, Piscicchia K, Reintsema CD, Sada Y, Sakuma F, Sato M, Schmidt DR, Scordo A, Sekimoto M, Shi H, Shirotori K, Sirghi D, Sirghi F, Suzuki K, Swetz DS, Takamine A, Tanida K, Tatsuno H, Trippl C, Uhlig J, Ullom JN, Yamada S, Yamaga T, Yamazaki T, Zmeskal J. Measurements of Strong-Interaction Effects in Kaonic-Helium Isotopes at Sub-eV Precision with X-Ray Microcalorimeters. Phys Rev Lett 2022; 128:112503. [PMID: 35363014 DOI: 10.1103/physrevlett.128.112503] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 01/25/2022] [Indexed: 06/14/2023]
Abstract
We have measured the 3d→2p transition x rays of kaonic ^{3}He and ^{4}He atoms using superconducting transition-edge-sensor microcalorimeters with an energy resolution better than 6 eV (FWHM). We determined the energies to be 6224.5±0.4(stat)±0.2(syst) eV and 6463.7±0.3(stat)±0.1(syst) eV, and widths to be 2.5±1.0(stat)±0.4(syst) eV and 1.0±0.6(stat)±0.3(stat) eV, for kaonic ^{3}He and ^{4}He, respectively. These values are nearly 10 times more precise than in previous measurements. Our results exclude the large strong-interaction shifts and widths that are suggested by a coupled-channel approach and agree with calculations based on optical-potential models.
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Affiliation(s)
- T Hashimoto
- Advanced Science Research Center, Japan Atomic Energy Agency (JAEA), Tokai 319-1184, Japan
- RIKEN Cluster for Pioneering Research, RIKEN, Wako 351-0198, Japan
| | - S Aikawa
- Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551, Japan
| | - T Akaishi
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - H Asano
- RIKEN Cluster for Pioneering Research, RIKEN, Wako 351-0198, Japan
| | - M Bazzi
- Laboratori Nazionali di Frascati dell' INFN, Frascati I-00044, Italy
| | - D A Bennett
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - M Berger
- Stefan-Meyer-Institut für subatomare Physik, Vienna A-1030, Austria
| | - D Bosnar
- Department of Physics, Faculty of Science, University of Zagreb, Zagreb 10000, Croatia
| | - A D Butt
- Politecnico di Milano, Dipartimento di Elettronica, Milano 20133, Italy
| | - C Curceanu
- Laboratori Nazionali di Frascati dell' INFN, Frascati I-00044, Italy
| | - W B Doriese
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - M S Durkin
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - Y Ezoe
- Department of Physics, Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - J W Fowler
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - H Fujioka
- Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551, Japan
| | - J D Gard
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - C Guaraldo
- Laboratori Nazionali di Frascati dell' INFN, Frascati I-00044, Italy
| | - F P Gustafsson
- Stefan-Meyer-Institut für subatomare Physik, Vienna A-1030, Austria
| | - C Han
- RIKEN Cluster for Pioneering Research, RIKEN, Wako 351-0198, Japan
| | - R Hayakawa
- Department of Physics, Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - R S Hayano
- Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan
| | - T Hayashi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - J P Hays-Wehle
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - G C Hilton
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - T Hiraiwa
- Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki 567-0047, Japan
| | - M Hiromoto
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - Y Ichinohe
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - M Iio
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - Y Iizawa
- Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551, Japan
| | - M Iliescu
- Laboratori Nazionali di Frascati dell' INFN, Frascati I-00044, Italy
| | - S Ishimoto
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - Y Ishisaki
- Department of Physics, Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - K Itahashi
- RIKEN Cluster for Pioneering Research, RIKEN, Wako 351-0198, Japan
| | - M Iwasaki
- RIKEN Cluster for Pioneering Research, RIKEN, Wako 351-0198, Japan
| | - Y Ma
- RIKEN Cluster for Pioneering Research, RIKEN, Wako 351-0198, Japan
| | - T Murakami
- Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan
| | - R Nagatomi
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - T Nishi
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, Wako 351-0198, Japan
| | - H Noda
- Department of Earth and Space Science, Osaka University, Toyonaka 560-0043, Japan
| | - H Noumi
- Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki 567-0047, Japan
| | - K Nunomura
- Department of Physics, Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - G C O'Neil
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - T Ohashi
- Department of Physics, Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - H Ohnishi
- Research Center for Electron Photon Science (ELPH), Tohoku University, Sendai 982-0826, Japan
| | - S Okada
- RIKEN Cluster for Pioneering Research, RIKEN, Wako 351-0198, Japan
- Engineering Science Laboratory, Chubu University, Kasugai 487-8501, Japan
| | - H Outa
- RIKEN Cluster for Pioneering Research, RIKEN, Wako 351-0198, Japan
| | - K Piscicchia
- Laboratori Nazionali di Frascati dell' INFN, Frascati I-00044, Italy
| | - C D Reintsema
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - Y Sada
- Research Center for Electron Photon Science (ELPH), Tohoku University, Sendai 982-0826, Japan
| | - F Sakuma
- RIKEN Cluster for Pioneering Research, RIKEN, Wako 351-0198, Japan
| | - M Sato
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - D R Schmidt
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - A Scordo
- Laboratori Nazionali di Frascati dell' INFN, Frascati I-00044, Italy
| | - M Sekimoto
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - H Shi
- Stefan-Meyer-Institut für subatomare Physik, Vienna A-1030, Austria
| | - K Shirotori
- Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki 567-0047, Japan
| | - D Sirghi
- Laboratori Nazionali di Frascati dell' INFN, Frascati I-00044, Italy
| | - F Sirghi
- Laboratori Nazionali di Frascati dell' INFN, Frascati I-00044, Italy
| | - K Suzuki
- Stefan-Meyer-Institut für subatomare Physik, Vienna A-1030, Austria
| | - D S Swetz
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - A Takamine
- RIKEN Cluster for Pioneering Research, RIKEN, Wako 351-0198, Japan
| | - K Tanida
- Advanced Science Research Center, Japan Atomic Energy Agency (JAEA), Tokai 319-1184, Japan
| | - H Tatsuno
- Department of Physics, Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - C Trippl
- Stefan-Meyer-Institut für subatomare Physik, Vienna A-1030, Austria
| | - J Uhlig
- Chemical Physics, Lund University, Lund 22100, Sweden
| | - J N Ullom
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - S Yamada
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - T Yamaga
- RIKEN Cluster for Pioneering Research, RIKEN, Wako 351-0198, Japan
| | - T Yamazaki
- Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan
| | - J Zmeskal
- Stefan-Meyer-Institut für subatomare Physik, Vienna A-1030, Austria
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Miyazawa Y, Nomura M, Syuto T, Seiji A, Sekine Y, Koike H, Hiroshi M, Suzuki K. The relationship between adherent perinephric fat and sex hormone levels in serum and perinephric fat tissue of patients treated by robotic assisted partial nephrectomy. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00298-6] [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: 11/04/2022]
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Sakiyama H, Li L, Inoue M, Eguchi H, Yoshihara D, Fujiwara N, Suzuki K. ChREBP deficiency prevents high sucrose diet-induced obesity through reducing sucrase expression. J Clin Biochem Nutr 2022; 71:221-228. [DOI: 10.3164/jcbn.22-15] [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] [Received: 02/04/2022] [Accepted: 06/07/2022] [Indexed: 11/22/2022] Open
Affiliation(s)
| | - Lan Li
- Department of Biochemistry, Hyogo College of Medicine
| | - Minako Inoue
- Department of Biochemistry, Hyogo College of Medicine
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Kuroki N, Abe D, Hasegawa K, Nagatomo R, Okochi M, Kato T, Aoyama T, Hirano H, Ohashi K, Takayama A, Hattori A, Kimata A, Hamabe Y, Suzuki K, Ueda T. Habitual exercise provides better prognosis for cardiac arrest with coronary artery disease. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2705] [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
Although regular physical activity has beneficial cardiovascular effects, exercise can trigger sudden cardiac arrest (SCA). Coronary artery disease (CAD) was identified as the most common cause of an exercise-related out-of-hospital cardiac arrest (OHCA). Regular exercise has been reported to reduce the risk of plaque rupture in animal studies and basic research. Therefore, we compared the coronary artery findings in CAD-OHCA patients with and without habitual exercise.
There have been few reports on whether regular exercise changes the prognosis in OHCA due to CAD (CAD-OHCA). We investigated the association between the better clinical outcome and the regular exercise in patients with CAD-OHCA.
Methods
This is a single-center retrospective analysis from 2006 to 2019. The consecutive 397 patients with OHCA due to myocardial ischemia underwent coronary angiography (CAG). After excluding 73 patients with vasospastic angina, the remaining 324 patients with CAD were enrolled in this study. We divided these patients into two groups according to whether they were habitually exercising (Exercise group: N=37) or not/unknown (Non-Exercise group: N=287).
Clinical outcome was a 30-day survival with minimal neurologic impairment represented by a Glasgow-Pittsburgh Cerebral Performance Categories Scale value 1 or 2.
Results
The patients in the Exercise Group were significantly younger (exercise vs. non-exercise, 57±12 vs. 64±12 years; P<0.01) than those in the non-exercise group. The Exercise group had a lower incidence of diabetes mellitus (22% vs. 42%; P=0.02) and a higher incidence of dyslipidemia (81% vs. 62%; P=0.02) than the non-exercise group. The time from collapse to cardiopulmonary resuscitation (1.4±4.0 vs. 3.0±4.8min) and from collapse to return of spontaneous circulation (11.9±10.0 vs. 28.0±25.3min) were shorter in Exercise group (all p<0.05). The ST-segment elevation was recorded on electrocardiography in fewer of the Exercise group (22% vs. 63%; P<0.01). The finding of culprit lesion in the coronary arteries on arrival resulted significant differences between the 2groups (good collateral and/or TIMI3 flow: 62% vs. 25%, the plaque rupture and/or thrombus: 22% vs. 73%) (all p<0.01) (Figure 1). Kaplan-Meier curve showed Exercise group has better neurological outcome at 30days compared than Non-Exercise (95% vs 51%; P<0.001, log-rank test) (Figure 2). Multivariable Cox proportional hazards models revealed that a habitual exercise was one of the predictors of a good neurological outcome (HR 0.21, 95% CI 0.05–0.92; P=0.039).
Conclusions
The patients with habitual exercise had less plaque rupture, less coronary thrombosis than non-exercise. The patients with regular exercise had better clinical outcomes than non-exercise after CAD-OHCA.
Funding Acknowledgement
Type of funding sources: Public Institution(s). Main funding source(s): Tokyo Metropolitan Goverment Figure 1. Findings of the culprit lesion in coronar arteriesFigure 2. Kaplan-Meier analysis
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Affiliation(s)
- N Kuroki
- Tokyo Metropolitan Bokutoh Hospital, Department of Cardiology, Tokyo, Japan
| | - D Abe
- Tokyo Metropolitan Bokutoh Hospital, Department of Cardiology, Tokyo, Japan
| | - K Hasegawa
- Tokyo Metropolitan Bokutoh Hospital, Department of Cardiology, Tokyo, Japan
| | - R Nagatomo
- Tokyo Metropolitan Bokutoh Hospital, Department of Cardiology, Tokyo, Japan
| | - M Okochi
- Tokyo Metropolitan Bokutoh Hospital, Department of Cardiology, Tokyo, Japan
| | - T Kato
- Tokyo Metropolitan Bokutoh Hospital, Department of Cardiology, Tokyo, Japan
| | - T Aoyama
- Tokyo Metropolitan Bokutoh Hospital, Department of Cardiology, Tokyo, Japan
| | - H Hirano
- Tokyo Metropolitan Bokutoh Hospital, Department of Cardiology, Tokyo, Japan
| | - K Ohashi
- Tokyo Metropolitan Bokutoh Hospital, Department of Cardiology, Tokyo, Japan
| | - A Takayama
- Tokyo Metropolitan Bokutoh Hospital, Department of Cardiology, Tokyo, Japan
| | - A Hattori
- Tokyo Metropolitan Bokutoh Hospital, Department of Cardiology, Tokyo, Japan
| | - A Kimata
- Tokyo Metropolitan Bokutoh Hospital, Department of Cardiology, Tokyo, Japan
| | - Y Hamabe
- Tokyo Metropolitan Bokutoh Hospital, Emergency and Intensive Care Center, Tokyo, Japan
| | - K Suzuki
- Tokyo Metropolitan Bokutoh Hospital, Department of Cardiology, Tokyo, Japan
| | - T Ueda
- Tokyo Metropolitan Bokutoh Hospital, Department of Cardiology, Tokyo, Japan
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Takai S, Sudo M, Sakai M, Suzuki K, Sasaki Y, Kakuda T, Suzuki Y. Isolation of Rhodococcus equi from the gastrointestinal contents of earthworms (family Megascolecidae). Lett Appl Microbiol 2021; 74:27-31. [PMID: 34608644 DOI: 10.1111/lam.13577] [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] [Received: 08/22/2021] [Revised: 09/29/2021] [Accepted: 10/01/2021] [Indexed: 11/27/2022]
Abstract
Rhodococcus equi was isolated from the gastrointestinal contents of earthworms (family Megascolecidae) and their surrounding soil collected from pastures of two horse-breeding farms in Aomori Prefecture, outdoor pig pens, forest in Towada campus, orange groves and forest where wild boars (Sus scrofa) are established in Tanabe, Wakayama Prefecture. The number of R. equi in the lower gastrointestinal contents of 23 earthworms collected from our campus was significantly larger than that of the upper gastrointestinal content. The mean numbers of R. equi from the gastrointestinal contents of earthworms collected from the various places were 2·3-fold to 39·7-fold more than those of the surrounding soil samples. In all, 1771 isolates from the earthworms and 489 isolates from the soil samples were tested for the presence of vapA and vapB genes using polymerase chain reaction. At the horse-breeding farm N, 9 of the 109 isolates (8·3%) from the earthworms and 7 of the 106 isolates (6·6%) from the soil samples were positive for the vapA gene. At the University's forest, one of the 250 isolates (0·4%) from the gastrointestinal contents of the earthworm was positive for the vapB gene. These results revealed that R. equi can be found in significant quantities in the gastrointestinal contents of earthworms, suggesting that they act as an accumulator of R. equi in the soil environment and as a source or reservoir of animal infection.
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Affiliation(s)
- S Takai
- Department of Animal Hygiene, School of Veterinary Medicine and Animal Sciences, Kitasato University, Towada, Japan
| | - M Sudo
- Department of Animal Hygiene, School of Veterinary Medicine and Animal Sciences, Kitasato University, Towada, Japan
| | - M Sakai
- Department of Animal Hygiene, School of Veterinary Medicine and Animal Sciences, Kitasato University, Towada, Japan
| | - K Suzuki
- Hikiiwa Park Center, Tanabe, Japan
| | - Y Sasaki
- Department of Animal Hygiene, School of Veterinary Medicine and Animal Sciences, Kitasato University, Towada, Japan
| | - T Kakuda
- Department of Animal Hygiene, School of Veterinary Medicine and Animal Sciences, Kitasato University, Towada, Japan
| | - Y Suzuki
- Department of Animal Hygiene, School of Veterinary Medicine and Animal Sciences, Kitasato University, Towada, Japan
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Yambayev I, Sullivan T, Suzuki K, Litle V, Servais E, Stock C, Quadri S, Rieger-Christ K, Burks E. P56.02 Novel Low Malignant Potential/Vascular Invasive (LMPVI) Grade is Superior to WHO 2015 and IASLC 2020 Adenocarcinoma Grade. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.568] [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: 10/20/2022]
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Senda M, Ishii K, Ito K, Ikeuchi T, Matsuda H, Iwatsubo T, Iwata A, Ihara R, Suzuki K, Kasuga K, Ikari Y, Niimi Y, Arai H, Tamaoka A, Arahata Y, Itoh Y, Tachibana H, Ichimiya Y, Washizuka S, Odawara T, Ishii K, Ono K, Yokota T, Nakanishi A, Matsubara E, Mori H, Shimada H. A Japanese Multicenter Study on PET and Other Biomarkers for Subjects with Potential Preclinical and Prodromal Alzheimer's Disease. J Prev Alzheimers Dis 2021; 8:495-502. [PMID: 34585225 DOI: 10.14283/jpad.2021.37] [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] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND PET (positron emission tomography) and CSF (cerebrospinal fluid) provide the "ATN" (Amyloid, Tau, Neurodegeneration) classification and play an essential role in early and differential diagnosis of Alzheimer's disease (AD). OBJECTIVE Biomarkers were evaluated in a Japanese multicenter study on cognitively unimpaired subjects (CU) and early (E) and late (L) mild cognitive impairment (MCI) patients. MEASUREMENTS A total of 38 (26 CU, 7 EMCI, 5 LMCI) subjects with the age of 65-84 were enrolled. Amyloid-PET and FDG-PET as well as structural MRI were acquired on all of them, with an additional tau-PET with 18F-flortaucipir on 15 and CSF measurement of Aβ1-42, P-tau, and T-tau on 18 subjects. Positivity of amyloid and tau was determined based on the positive result of either PET or CSF. RESULTS The amyloid positivity was 13/38, with discordance between PET and CSF in 6/18. Cortical tau deposition quantified with PET was significantly correlated with CSF P-tau, in spite of discordance in the binary positivity between visual PET interpretation and CSF P-tau in 5/8 (PET-/CSF+). Tau was positive in 7/9 amyloid positive and 8/16 amyloid negative subjects who underwent tau measurement, respectively. Overall, a large number of subjects presented quantitative measures and/or visual read that are close to the borderline of binary positivity, which caused, at least partly, the discordance between PET and CSF in amyloid and/or tau. Nine subjects presented either tau or FDG-PET positive while amyloid was negative, suggesting the possibility of non-AD disorders. CONCLUSION Positivity rate of amyloid and tau, together with their relationship, was consistent with previous reports. Multicenter study on subjects with very mild or no cognitive impairment may need refining the positivity criteria and cutoff level as well as strict quality control of the measurements.
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Affiliation(s)
- M Senda
- Michio Senda, Division of Molecular Imaging Research Kobe City Medical Center General Hospital (KCGH), 2-1-1 Minatojima-Minamimachi, Chuo-ku, Kobe 650-0047 Japan, E-mail: , Phone: 81-78-304-5212, Fax: 81-78-304-5201
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Ichihashi S, Takahara M, Lida O, Suzuki K, Yamaoka T, Maeda K. Clinical Impact of Stent-Graft Thrombosis in Femoropopliteal Arterial Lesion. J Vasc Surg 2021. [DOI: 10.1016/j.jvs.2021.06.008] [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: 10/20/2022]
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Ichimura T, Nomura H, Shimizu H, Machida Y, Suzuki K. Cost-effectiveness of primary prophylaxis of febrile neutropenia with pegfilgrastim in docetaxel, cisplatin and 5-fluorouracil therapy for esophageal cancer. Pharmazie 2021; 76:450-454. [PMID: 34481537 DOI: 10.1691/ph.2021.1031] [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] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
Abstract
Objective: The efficacy of docetaxel, cisplatin, and 5-fluorouracil (DCF) therapy in treating esophageal cancer has been reported. However, febrile neutropenia (FN) is a potentially serious adverse event of DCF therapy with an incidence of 10 to 40%. Pegfilgrastim, a granulocyte colony-stimulating factor (G-CSF), has been shown to have a primary prophylactic role in FN. However, it has been suggested that excessive use of expensive G-CSF should be avoided. Therefore, we performed a cost-utility analysis of primary prophylaxis with pegfilgrastim. Design: Cost-effectiveness analysis using decision tree modelling. Methods: We used a decision tree analysis model based on the report of primary prophylaxis with pegfilgrastim. Based on a previous study, the FN incidence rate was set at 40.0% (95% confidence interval (CI): 11.9-68.1) for the pegfilgrastim group and 43.5% (95%CI: 21.6-65.4) for the no pegfilgrastim group. The FN treatment cost was US$726.63, and the duration of FN was 3.65±1.20 days. The utility value of patients who received DCF therapy was 0.643, and the change in utility value at FN onset was -0.15. Expected cost, quality-adjusted life year (QALY), and incremental cost-effectiveness ratio (ICER) were calculated, and cost-utility analysis was performed. Results: The ICER of pegfilgrastim was 184,976.75 USD/QALY. As a result of sensitivity analysis, the utility of FN had the greatest impact on the cost-effectiveness analysis, followed by the drug cost of pegfilgrastim. Conclusion: Primary prophylaxis of FN with pegfilgrastim might not be cost-effectiveness. In determining whether to administer pegfilgrastim it is necessary to consider patient factors, not just the incidence of FN.
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Affiliation(s)
- T Ichimura
- Department of Hospital Pharmaceutics, School of Pharmacy, Showa University, Japan
| | - H Nomura
- Department of Date Science/Pharmacy, National Cancer Center Hospital East, Japan
| | - H Shimizu
- Department of Pharmacy, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Japan; Department of Nursing, School of Nursing and Rehabilitation Sciences, Showa University, Japan
| | - Y Machida
- Department of Pharmacy, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Japan; Department of Nursing, School of Nursing and Rehabilitation Sciences, Showa University, Japan
| | - K Suzuki
- Division of Applied Pharmaceutical Education and Research, Hoshi University, Tokyo, Japan;,
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Suzuki K, Futamura K, Hasegawa E, Aoki Y, Nakamura M, Matsunaga K, Yagami A. Adult-Onset Sheep's Milk Allergy in a Patient Without Cow's Milk Allergy. J Investig Allergol Clin Immunol 2021; 31:273-274. [PMID: 32856594 DOI: 10.18176/jiaci.0578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- K Suzuki
- Department of Allergology, Fujita Health University School of Medicine, Aichi, Japan
| | - K Futamura
- Department of Allergology, Fujita Health University School of Medicine, Aichi, Japan
| | - E Hasegawa
- Department of Integrative Medical Science for Allergic Disease, Fujita Health University School of Medicine, Aichi, Japan.,General Research and Development Institute, Hoyu Co., Ltd., Aichi, Japan
| | - Y Aoki
- Department of Integrative Medical Science for Allergic Disease, Fujita Health University School of Medicine, Aichi, Japan.,General Research and Development Institute, Hoyu Co., Ltd., Aichi, Japan
| | - M Nakamura
- Department of Integrative Medical Science for Allergic Disease, Fujita Health University School of Medicine, Aichi, Japan.,General Research and Development Institute, Hoyu Co., Ltd., Aichi, Japan
| | - K Matsunaga
- Department of Allergology, Fujita Health University School of Medicine, Aichi, Japan.,Department of Integrative Medical Science for Allergic Disease, Fujita Health University School of Medicine, Aichi, Japan
| | - A Yagami
- Department of Allergology, Fujita Health University School of Medicine, Aichi, Japan
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Li L, Sakiyama H, Eguchi H, Yoshihara D, Fujiwara N, Suzuki K. Activation of the mitogen-activated protein kinase ERK1/2 signaling pathway suppresses the expression of ChREBPα and β in HepG2 cells. FEBS Open Bio 2021; 11:2008-2018. [PMID: 34051057 PMCID: PMC8255832 DOI: 10.1002/2211-5463.13208] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 05/07/2021] [Accepted: 05/26/2021] [Indexed: 11/25/2022] Open
Abstract
The carbohydrate response element‐binding protein (ChREBP), a glucose‐responsive transcription factor that plays a critical role in the glucose‐mediated induction of genes involved in hepatic glycolysis and lipogenesis, exists as two isoforms: ChREBPα and ChREBPβ. However, the mechanism responsible for regulating the expression of both ChREBPα and β, as well as the mechanism that determines which specific isoform is more responsive to different stimuli, remains unclear. To address this issue, we compared the effects of several stimuli, including oxidative stress, on the mRNA and protein expression levels of ChREBPα and β in the hepatocyte cell line, HepG2. We found that H2O2 stimulation suppressed the expression of both mRNA and protein in HepG2 cells, but the mRNA expression level of ChREBPβ was < 1% of that for ChREBPα levels. In addition, the reduction in both ChREBPα and β mRNA levels was reversed by PD98059, a selective and cell permeable inhibitor of the MEK/ERK pathway. Additionally, the administration of 12‐O‐tetradecanoylphorbol 13‐acetate (TPA) and staurosporine (STS), activators of extracellular‐signal‐regulated kinase (ERK) signaling, also resulted in a decrease in the levels of both ChREBPα and β mRNA in HepG2 cells through ERK signaling. These collective data suggest that oxidative stress, including STS treatment, suppresses the expression of ChREBPα and β via the activation of ERK signaling in HepG2 cells. Such a decrease in the levels of expression of ChREBPα and β could result in the suppression of hepatic glycolysis and lipogenesis, and this would be expected to prevent further oxidative stress.
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Affiliation(s)
- Lan Li
- Department of Biochemistry, Hyogo College of Medicine, Nishinomiya, Japan
| | - Haruhiko Sakiyama
- Department of Biochemistry, Hyogo College of Medicine, Nishinomiya, Japan
| | - Hironobu Eguchi
- Department of Biochemistry, Hyogo College of Medicine, Nishinomiya, Japan
| | - Daisaku Yoshihara
- Department of Biochemistry, Hyogo College of Medicine, Nishinomiya, Japan
| | - Noriko Fujiwara
- Department of Biochemistry, Hyogo College of Medicine, Nishinomiya, Japan
| | - Keiichiro Suzuki
- Department of Biochemistry, Hyogo College of Medicine, Nishinomiya, Japan
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Miyazawa Y, Oka D, Nakayama H, Miyao T, Nakamura T, Takezawa Y, Shimizu N, Matsuo Y, Haruyuki O, Takei T, Sekine Y, Arai S, Suzuki K. Prospective study of the relationship between clinical outcomes of enzalutamide and serum androgen levels measured by LC-MS/MS in CRPC patients. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)01230-6] [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: 10/20/2022]
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Nakashima A, Suzuki K, Fujii H, Fujisawa Y, Mizushima I, Zoshima T, Kawano M, Nomura H. POS0527 ACUTE KIDNEY INJURY (AKI) IN PATIENTS WITH RHEUMATOID ARTHRITIS (RA). Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.1786] [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
Background:Methotrexate has been an anchor drug for patients with rheumatoid arthritis (RA). However, it is strictly prohibited to prescribe MTX to patients with severely decreased renal function because it can induce a fatal adverse event such as pancytopenia in these patients. On the other hand, since the average age of RA patients is gradually increasing, and many of them already have mildly to moderately impaired renal function, their renal function can easily decrease to below the critical level of the estimated glomerular filtration rate. Therefore, new development of acute kidney injury (AKI) during MTX administration might induce a fatal adverse event, making the identification of patients susceptible to AKI very important.Objectives:To clarify the frequency of AKI and the factors involved in it in RA patients.Methods:Two hundred and fifty-two RA patients (211 females, 41 males, mean age 62.3 ± 12.5 years, disease duration 11.0 ± 9.5 years) diagnosed more than 3 years earlier and followed for more than 5 years, and also, others diagnosed ≥3 years earlier but followed for ≤5 years were enrolled. We measured BUN, Cr, RF and aCCP in patient serum, urinary proteins, urinary blood, and urinary casts and evaluated CDAI, SDAI, disease activity score (DAS) 28-CRP and DAS28-ESR. Steinbrocker functional classification and radiological grading were evaluated. History of diabetes mellitus, hypertension and hyperlipidemia was determined from the medical records. Medications for RA, including non-steroid anti-inflammatory drugs (NSAIDs), prednisolone, csDMARD (MTX, Tacrolimus, etc.), bDMARDs and tsDMARDs were evaluated. Estimated glomerular filtration rate (eGFR) was calculated by the new Japanese coefficient-modified Modification of Diet in Renal disease (MDRD) study equation. The criteria of AKI were that serum Cr increased by 0.3 mg /dl or increased by 1.5-fold between consecutive visits according to the KIDIGO criteria 1) and the report of Leither et al2).Results:Twenty (7.9%) patients developed AKI, 22 times. The causes of AKI were 10 infections, 6 dehydrations, 2 enteritis, 1 urticaria, 2 hypercalcemia due to VitD administration, and 1 ureteral stone. We divided our patients into group A (with AKI) and group B (without AKI). Group A was older (69.9±10.1 vs 61.7±12.6 years), had greater physician VAS (29.5±27.7 vs 15.7±18.3 mm), higher serum creatinine (0.79±0.19 vs 0.60±0.16 mg/dl), higher BUN (18.4±5.7 vs 15.1±4.4 mg/dl), lower eGFR(65.5±23.3 vs 86.4±22.4 ml/min), more frequent prednisolone administration (75.0% vs 41.9%), more frequent hyperlipidemia (50.0% vs 19.2%) and more frequent hypertension (60.0% vs 30.6%) than Group B by univariate analysis significantly (p<0.01). We then performed multifactorial analysis using logistic regression analysis. Greater physician VAS (OR 1.02, 1.00-1.04), lower eGFR (OR 1.04, 1.01-1.08) and prednisolone administration (OR 3.29, 1.02-10.63) were found as independent relevant factors for group A.Conclusion:Our study indicated that AKI developed in RA patients and suggested that renal function decline and prednisolone administration may be implicated. RA patients with impaired renal function and prednisolone administration need to be treated with special attention to the onset of AKI.References:[1]Kidney Disease: Improving Global Outcomes (KDIGO) Practice Guideline for Acute Kidney Injury. Kidney Int Suppl 2: 1-138, 2012[2]Leither MD, Murphy DP, Bicknese L et al. The impact of outpatient acute kidney injury on mortality and chronic kidney disease: a retrospective cohort study. Nephrol Dial Transplant. 34:493-501, 2019Disclosure of Interests:None declared
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Sakiyama H, Li L, Kuwahara-Otani S, Nakagawa T, Eguchi H, Yoshihara D, Shinohara M, Fujiwara N, Suzuki K. A lack of ChREBP inhibits mitochondrial cristae formation in brown adipose tissue. Mol Cell Biochem 2021; 476:3577-3590. [PMID: 34021470 DOI: 10.1007/s11010-021-04178-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 08/26/2020] [Accepted: 05/12/2021] [Indexed: 11/25/2022]
Abstract
The carbohydrate response element binding protein (ChREBP) is a glucose-responsive transcription factor that increases the transcription of multiple genes. ChREBP is highly localized in the liver, where it upregulates the expression of genes that code for glycolytic and lipogenic enzymes, resulting in the conversion of excess carbohydrate into storage fat. ChREBP knockout (KO) mice display an anti-obese phenotype. However, at this time, role of ChREBP in adipose tissue remains unclear. Therefore, the energy metabolism and morphology of mitochondrial brown adipose tissue (BAT) in ChREBP KO mice was examined. We found increased expression levels of electron transport system proteins including the mitochondrial uncoupling protein (UCP1), and mitochondrial structural alterations such as dysplasia of the cristae and the presence of small mitochondria in BAT of ChREBP KO mice. Mass spectrometry analyses revealed that fatty acid synthase was absent in the BAT of ChREBP KO mice, which probably led to a reduction in fatty acids and cardiolipin, a regulator of various mitochondrial events. Our study clarified the new role of ChREBP in adipose tissue and its involvement in mitochondrial function. A clearer understanding of ChREBP in mitochondria could pave the way for improvements in obesity management.
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Affiliation(s)
- Haruhiko Sakiyama
- Department of Biochemistry, Hyogo College of Medicine, Nishinomiya, Hyogo, 663-8501, Japan.
| | - Lan Li
- Department of Biochemistry, Hyogo College of Medicine, Nishinomiya, Hyogo, 663-8501, Japan
| | - Sachi Kuwahara-Otani
- Department of Anatomy and Cell Biology, Hyogo College of Medicine, Nishinomiya, Hyogo, 663-8501, Japan
| | - Tsutomu Nakagawa
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Ishikari-gun, Hokkaido, 061-0293, Japan
| | - Hironobu Eguchi
- Department of Biochemistry, Hyogo College of Medicine, Nishinomiya, Hyogo, 663-8501, Japan
| | - Daisaku Yoshihara
- Department of Biochemistry, Hyogo College of Medicine, Nishinomiya, Hyogo, 663-8501, Japan
| | - Masakazu Shinohara
- Division of Epidemiology, Kobe University Graduate School of Medicine, Kobe, Hyogo, 650-0017, Japan
- The Integrated Center for Mass Spectrometry, Kobe University Graduate School of Medicine, Kobe, Hyogo, 650-0017, Japan
| | - Noriko Fujiwara
- Department of Biochemistry, Hyogo College of Medicine, Nishinomiya, Hyogo, 663-8501, Japan
| | - Keiichiro Suzuki
- Department of Biochemistry, Hyogo College of Medicine, Nishinomiya, Hyogo, 663-8501, Japan
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Eguchi H, Sakiyama H, Naruse H, Yoshihara D, Fujiwara N, Suzuki K. Introduction of team-based learning improves understanding of glucose metabolism in biochemistry among undergraduate students. Biochem Mol Biol Educ 2021; 49:383-391. [PMID: 33378596 DOI: 10.1002/bmb.21485] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 07/16/2020] [Accepted: 12/02/2020] [Indexed: 06/12/2023]
Abstract
Team-based learning (TBL) is an active learning method used in many educational institutions. However, there are few examples of its use in basic medicine, such as biochemistry in medical schools. This study used TBL to teach glucose metabolism to first-year medical students. The process was in four phases: preclass preparation, readiness assurance tests, advanced questions, and a TBL test, with peer evaluation and a questionnaire. There were positive correlations between the TBL test, peer evaluation, and individual readiness test performance. Tests were taken immediately after learning and 2 weeks later, and scores decreased significantly less with TBL than traditional lectures (-2.3% vs. -17.5%). This suggests that TBL was more effective than traditional lectures in supporting knowledge retention. We used a Moodle system to facilitate communication between students and teachers, and this was evaluated positively by both groups. It was particularly useful for managing TBL. These findings suggest that TBL could be used to improve student performance in biochemistry.
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Affiliation(s)
- Hironobu Eguchi
- Department of Biochemistry, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
| | - Haruhiko Sakiyama
- Department of Biochemistry, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
| | - Hitoshi Naruse
- Medical Education Center, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
| | - Daisaku Yoshihara
- Department of Biochemistry, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
| | - Noriko Fujiwara
- Department of Biochemistry, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
| | - Keiichiro Suzuki
- Department of Biochemistry, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
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