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Saito K, Maeda M. p24 family Tango(1) at the endoplasmic reticulum exit site to organize cargo exit. J Cell Biol 2024; 223:e202403016. [PMID: 38558237 PMCID: PMC10983802 DOI: 10.1083/jcb.202403016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024] Open
Abstract
The p24 family of proteins have been regarded as cargo receptors for endoplasmic reticulum (ER) to Golgi transport; however, their precise functions have yet to be revealed. In this issue, Pastor-Pareja and colleagues (https://doi.org/10.1083/jcb.202309045) show that the interaction of these proteins with Tango1 is critical for their localization at the ER exit site (ERES) and efficient transport of secretory proteins in Drosophila.
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Affiliation(s)
- Kota Saito
- Department of Biological Informatics and Experimental Therapeutics, Graduate School of Medicine, Akita University, Akita, Japan
| | - Miharu Maeda
- Department of Biological Informatics and Experimental Therapeutics, Graduate School of Medicine, Akita University, Akita, Japan
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Oda N, Takakura H, Maeda M, Takata I. Hunter's glossitis and autoimmune gastritis: a case report. QJM 2024; 117:148-149. [PMID: 37950455 DOI: 10.1093/qjmed/hcad253] [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: 11/01/2023] [Indexed: 11/12/2023] Open
Affiliation(s)
- N Oda
- Department of Internal Medicine, Fukuyama City Hospital, Fukuyama, Japan
| | - H Takakura
- Department of Oral and Maxillofacial Surgery, Fukuyama City Hospital, Fukuyama, Japan
| | - M Maeda
- Department of Internal Medicine, Fukuyama City Hospital, Fukuyama, Japan
- Department of Kidney, Diabetes, and Endocrine Diseases, Okayama University Hospital, Okayama, Japan
| | - I Takata
- Department of Internal Medicine, Fukuyama City Hospital, Fukuyama, Japan
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Suzuki N, Ikeda Y, Ono M, Ohmori G, Maeda M. Gastrointestinal: Immune-related sclerosing cholangitis with pembrolizumab: Imaging and histological features. J Gastroenterol Hepatol 2022; 37:1652. [PMID: 35226968 DOI: 10.1111/jgh.15797] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 12/15/2021] [Accepted: 01/12/2022] [Indexed: 12/09/2022]
Affiliation(s)
- N Suzuki
- Department of Gastroenterology, Steel Memorial Muroran Hospital, Muroran, Japan
| | - Y Ikeda
- Department of Gastroenterology, Steel Memorial Muroran Hospital, Muroran, Japan
| | - M Ono
- Department of Gastroenterology, Steel Memorial Muroran Hospital, Muroran, Japan
| | - G Ohmori
- Department of Gastroenterology, Steel Memorial Muroran Hospital, Muroran, Japan
| | - M Maeda
- Department of Gastroenterology, Steel Memorial Muroran Hospital, Muroran, Japan
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Umemura T, Mutoh Y, Maeda M, Hagihara M, Ohta A, Mizuno T, Kato H, Sukawa M, Yamada T, Ikeda Y, Mikamo H, Ichihara T. Impact of Hospital Environmental Cleaning with a Potassium Peroxymonosulphate-Based Environmental Disinfectant and Antimicrobial Stewardship on the Reduction of Hospital-Onset Clostridioides difficile Infections. J Hosp Infect 2022; 129:181-188. [PMID: 35820556 DOI: 10.1016/j.jhin.2022.06.018] [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: 04/25/2022] [Revised: 06/27/2022] [Accepted: 06/29/2022] [Indexed: 11/18/2022]
Abstract
BACKGROUND A 1% potassium peroxymonosulphate-based environmental disinfectant (PPED) produces sodium hypochlorite when combined with sodium chloride, which functions as a disinfectant. However, little is known about the impact of hospital cleaning with PPED on hospital-onset Clostridioides difficile infection (HO-CDI). AIM To reduce HO-CDI, we promote antimicrobial stewardship and hospital ward cleaning with PPED. This study was conducted to evaluate their impact. METHODS We began a promotion of post-prescription review with feedback for broad-spectrum antimicrobials and hospital ward cleaning with PPED. We reviewed the ratio of HO-CDI, PPED consumption, and days of therapy (DOT) of broad-spectrum antimicrobials between July 2014 and March 2018, dividing this time into the pre-promotion (July 2014 to June 2015) and post-promotion periods (July 2015 to March 2018). FINDINGS Using interrupted time series analysis, an immediate significant change in HO-CDI was observed after intervention (P = 0.03), although a downward trend was not observed over this period (P = 0.19). Trends in PPED consumption significantly changed over this period (P = 0.02). DOT of carbapenems decreased immediately after the intervention began (P < 0.01). A Poisson regression analysis showed that PPED consumption and DOT of carbapenems were independent factors affecting HO-CDI (P = 0.039 and 0.016, respectively). CONCLUSION We revealed that DOT of carbapenems and use of PPED were associated with the HO-CDI ratio and that both interventions reduced the rate of HO-CDI. This is the first report on the impact of hospital ward cleaning with PPED on the reduction of HO-CDI.
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Affiliation(s)
- T Umemura
- Department of Infection and Prevention, Tosei General Hospital, Aichi, Japan; Department of Clinical Infectious Diseases, Aichi Medical University, Japan; Department of Pharmacy, Tosei General Hospital, Aichi, Japan; College of Pharmacy, Kinjo Gakuin University, Nagoya, Aichi, Japan.
| | - Y Mutoh
- Department of Infection and Prevention, Tosei General Hospital, Aichi, Japan
| | - M Maeda
- Division of Infection Control Sciences, Department of Clinical Pharmacy, School of Pharmacy, Showa University, Tokyo, Japan
| | - M Hagihara
- Department of Clinical Infectious Diseases, Aichi Medical University, Japan
| | - A Ohta
- Department of Pharmacy, Tosei General Hospital, Aichi, Japan
| | - T Mizuno
- Department of Pharmacy, Tosei General Hospital, Aichi, Japan
| | - H Kato
- Department of Clinical Infectious Diseases, Aichi Medical University, Japan
| | - M Sukawa
- Department of Infection and Prevention, Tosei General Hospital, Aichi, Japan
| | - T Yamada
- Department of Pharmacy, Tosei General Hospital, Aichi, Japan
| | - Y Ikeda
- College of Pharmacy, Kinjo Gakuin University, Nagoya, Aichi, Japan
| | - H Mikamo
- Department of Clinical Infectious Diseases, Aichi Medical University, Japan
| | - T Ichihara
- Department of Infection and Prevention, Tosei General Hospital, Aichi, Japan
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Takeda T, Yanagi N, Fukasawa N, Mori E, Maeda M, Sakaguchi R, Tei M, Omura K, Otori N. Respiratory epithelial adenomatoid hamartoma with nasal polyps affects dupilumab efficacy. Rhinology 2022; 60:148-151. [PMID: 35174813 DOI: 10.4193/rhin21.359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- T Takeda
- Department of Otorhinolaryngology, Jikei University School of Medicine, Japan
| | - N Yanagi
- Department of Otorhinolaryngology, Jikei University School of Medicine, Japan
| | - N Fukasawa
- Department of Pathology, Jikei University School of Medicine, Japan
| | - E Mori
- Department of Otorhinolaryngology, Jikei University School of Medicine, Japan
| | - M Maeda
- Department of Otorhinolaryngology, Jikei University School of Medicine, Japan
| | - R Sakaguchi
- Department of Pathology, Jikei University School of Medicine, Japan
| | - M Tei
- Department of Otorhinolaryngology, Jikei University School of Medicine, Japan
| | - K Omura
- Department of Otorhinolaryngology, Jikei University School of Medicine, Japan
| | - N Otori
- Department of Otorhinolaryngology, Jikei University School of Medicine, Japan
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Bakker ME, Pluimakers VG, van Atteveld JE, Neggers SJCMM, van den Heuvel-Eibrink MM, Sato S, Yamashita K, Kiyotani C, Ishida Y, Maeda M. Perspectives on follow-up care and research for childhood cancer survivors: results from an international SIOP meet-the-expert questionnaire in Kyoto, 2018. Jpn J Clin Oncol 2021; 51:1554-1560. [PMID: 34409997 DOI: 10.1093/jjco/hyab126] [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: 01/04/2021] [Accepted: 07/23/2021] [Indexed: 11/12/2022] Open
Abstract
INTRODUCTION Survival of childhood cancer has increased over the past decades. This has led to the development of strategies aiming to enhance follow-up care and research, for which priorities may vary globally. We explored perspectives of an international healthcare workers panel. METHODS Attendants of a meet-the-expert session on childhood cancer survivorship at the 2018 SIOP conference completed a survey about their view on important follow-up care and research aspects for survivors below and over 18 years. We analysed overarching categories and subtopics, and compared Asian versus European and North American healthcare workers. RESULTS A total of 58 participants from different medical specialties (67.2% paediatric oncologists) and continents (48.3% Asia, 39.7% Europe/North America) responded. Follow-up care priorities for survivors below and over 18 years included physical care (39.3% ≤18 years, 35.9% >18 years) and healthcare structure (29.4%, 26.0%). Physical care was also the most important research aspect for both age groups (52.5%, 50.7%). Psychological support was the most frequently reported subtopic. Asian clinicians (n = 22) primarily prioritized physical care aspects of follow-up care, whereas European/North American (n = 19) clinicians underscored the importance of healthcare structure. CONCLUSION Physical care is the most important aspect of survivorship care and research according to clinicians from several continents. Asian and European/North American respondents shared most priorities, however, healthcare structure was a more important category for European/North American clinicians. The most common subtopic was psychological support, underlining also the need to involve psychologists in follow-up.
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Affiliation(s)
- M E Bakker
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - V G Pluimakers
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - J E van Atteveld
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - S J C M M Neggers
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands.,Department of Medicine, section Endocrinology, Erasmus University Medical Centre, Rotterdam, The Netherlands
| | | | - S Sato
- St. Luke's International University, Tokyo, Japan
| | - K Yamashita
- Children's Cancer Association of Tokyo, Japan
| | - C Kiyotani
- National Center for Child Health and Development, Tokyo, Japan
| | - Y Ishida
- Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - M Maeda
- Nippon Medical School, Tokyo, Japan
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Abstract
How ER exit sites disassemble during mitosis is not well understood. Transport ANd Golgi Organization 1 (TANGO1, also known as MIA3), a cargo receptor originally identified for collagens, acts as a hub for ER exit site disassembly under the control of Casein Kinase 1 (CK1)-mediated phosphorylation and Protein Phosphatase 1 (PP1)-mediated dephosphorylation. Impaired dephosphorylation during mitosis induces ER exit site disassembly.
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Affiliation(s)
- Miharu Maeda
- Department of Biological Informatics and Experimental Therapeutics, Graduate School of Medicine, Akita University, Akita, Japan
| | - Yukie Komatsu
- Department of Biological Informatics and Experimental Therapeutics, Graduate School of Medicine, Akita University, Akita, Japan
| | - Kota Saito
- Department of Biological Informatics and Experimental Therapeutics, Graduate School of Medicine, Akita University, Akita, Japan
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Abstract
Under the COVID-19 pandemic, mitigation of psychological distress is required. At present, the demand for remote intervention for the numerous affected people is increasing, and telephonic support can be useful. Since the Fukushima nuclear disaster in 2011, we have been developing a large-scale telephonic support system and implementing brief interventions for the Fukushima people identified at risk of psychological problems such as depression and post-traumatic stress disorder. In this article, we report the lessons from the Fukushima disaster that can be applied to the COVID-19 pandemic and describe how the telephonic intervention facilitates easier access to psychological help for people with a broad range of psychological distress who are not able to visit treatment or care resources. In our telephonic intervention, we first sent a mental health and lifestyle survey to the people affected by the Fukushima disaster. The counselor team then provided telephonic intervention to high-risk persons as identified on the basis of the survey results. The individuals had expected to receive from the telephonic system help mainly in the form of stress-coping methods, social resource information such as schools, public offices or medical facilities, and lifestyle advice. Since we also experienced that psychological care for telephone counselors was necessary to mitigate the substantial emotional burden, we used the following three approaches: (i) regular supervision of the telephone counseling methods, (ii) seminars for improvement of counseling skills and (iii) individual psychological support. The positive loops between counselors and consulters will help advance a society affected by a disaster.
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Affiliation(s)
- M Momoi
- From the Department of Health Risk Communication, Fukushima Medical University, 1 Hikarigaoka, Fukushima City, Fukushima, 960-1295, Japan
| | - M Murakami
- From the Department of Health Risk Communication, Fukushima Medical University, 1 Hikarigaoka, Fukushima City, Fukushima, 960-1295, Japan
- Address correspondence to Dr M. Murakami, Department of Health Risk Communication, Fukushima Medical University, 1 Hikarigaoka, Fukushima City, Fukushima, 960-1295, Japan.
| | - N Horikoshi
- From the Department of Health Risk Communication, Fukushima Medical University, 1 Hikarigaoka, Fukushima City, Fukushima, 960-1295, Japan
| | - M Maeda
- From the Department of Health Risk Communication, Fukushima Medical University, 1 Hikarigaoka, Fukushima City, Fukushima, 960-1295, Japan
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Shoji T, Kikuchi E, Kikuchi J, Maeda M, Takashima Y, Furuta M, Takahashi H, Kinoshita I, Dosaka-Akita H, Sakakibara-Konishi J, Konno S. P2.03-53 Immunoproteasome as a Potential Therapeutic Target in Cisplatin-Resistant Small and Non-Small Cell Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1500] [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: 11/25/2022]
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Saito K, Maeda M. Not just a cargo receptor for large cargoes; an emerging role of TANGO1 as an organizer of ER exit sites. J Biochem 2019; 166:115-119. [PMID: 31098622 DOI: 10.1093/jb/mvz036] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [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: 03/30/2019] [Accepted: 04/24/2019] [Indexed: 02/07/2023] Open
Abstract
Proteins synthesized within the endoplasmic reticulum (ER) are exported from ER exit sites via coat protein complex II (COPII)-coated vesicles. Although the mechanisms of COPII-vesicle formation at the ER exit sites are highly conserved among species, vertebrate cells secrete a wide range of materials, including collagens and chylomicrons, which form bulky structures within the ER that are too large to fit into conventional carriers. Transport ANd Golgi Organization 1 (TANGO1) was initially identified as a cargo receptor for collagens but has been recently rediscovered as an organizer of ER exit sites. We would like to review recent advances in the mechanism of large cargo secretion and organization of ER exit sites through the function of TANGO1.
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Affiliation(s)
- Kota Saito
- Department of Biological Informatics and Experimental Therapeutics, Graduate School of Medicine, Akita University, 1-1-1 Hondo, Akita, Japan
| | - Miharu Maeda
- Department of Biological Informatics and Experimental Therapeutics, Graduate School of Medicine, Akita University, 1-1-1 Hondo, Akita, Japan
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Maeda M, Kurokawa K, Katada T, Nakano A, Saito K. COPII proteins exhibit distinct subdomains within each ER exit site for executing their functions. Sci Rep 2019; 9:7346. [PMID: 31089171 PMCID: PMC6517409 DOI: 10.1038/s41598-019-43813-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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: 02/22/2019] [Accepted: 05/02/2019] [Indexed: 11/09/2022] Open
Abstract
Secretory proteins are exported from special domains of the endoplasmic reticulum (ER) termed ER exit sites, via COPII-coated carriers. We recently showed that TANGO1 and Sec16 cooperatively organize mammalian ER exit sites for efficient secretion. However, the detailed spatial organization of mammalian ER exit sites is yet to be revealed. Here, we used super-resolution confocal live imaging microscopy (SCLIM) to investigate the localization of endogenous proteins, and we identified domains abundant in transmembrane complexes (TANGO1/cTAGE5/Sec12) juxtaposed to Sec16. Interestingly, this domain can be distinguished from the inner and the outer coats of COPII proteins within each mammalian ER exit site. Cargoes are partially concentrated in the domain for secretion. Our results suggest that mammalian ER exit sites compartmentalize proteins according to their function in COPII vesicle formation.
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Affiliation(s)
- Miharu Maeda
- Department of Biological Informatics and Experimental Therapeutics, Graduate School of Medicine, Akita University 1-1-1, Hondo, Akita, 010-8543, Japan
| | - Kazuo Kurokawa
- Live Cell Super-Resolution Imaging Research Team, RIKEN Center for Advanced Photonics, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan.
| | - Toshiaki Katada
- Faculty of Pharmacy, Musashino University, Tokyo, 202-8585, Japan
| | - Akihiko Nakano
- Live Cell Super-Resolution Imaging Research Team, RIKEN Center for Advanced Photonics, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Kota Saito
- Department of Biological Informatics and Experimental Therapeutics, Graduate School of Medicine, Akita University 1-1-1, Hondo, Akita, 010-8543, Japan.
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Matsuura K, Takami T, Maeda M, Hisanaga T, Fujisawa K, Saeki I, Matsumoto T, Hidaka I, Yamamoto N, Sakaida I. Evaluation of the Effects of Cultured Bone Marrow Mesenchymal Stem Cell Infusion on Hepatocarcinogenesis in Hepatocarcinogenic Mice With Liver Cirrhosis. Transplant Proc 2019; 51:925-935. [PMID: 30979485 DOI: 10.1016/j.transproceed.2019.03.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVES Liver transplantation remains the only curative therapy for decompensated liver cirrhosis. However, it has several limitations, and not all patients can receive liver transplants. Therefore, liver regenerative therapy without liver transplantation is considered necessary. In this study, we attempted minimally invasive liver regenerative therapy by peripheral vein infusion of bone marrow-derived mesenchymal stem cells (BMSCs) cultured from a small amount of autologous bone marrow fluid and evaluated the effects of BMSCs on hepatocarcinogenesis in a mouse model. METHODS C57BL/6 male mice were injected intraperitoneally with N-nitrosodiethylamine once at 2 weeks of age, followed by carbon tetrachloride twice a week from 6 weeks of age onwards, to create a mouse model of highly oncogenic liver cirrhosis. From 10 weeks of age, mouse isogenic green fluorescent protein-positive BMSCs (1.0 × 106/body weight) were infused once every 2 weeks, for a total of 5 times, and the effects of frequent BMSC infusion on hepatocarcinogenesis were evaluated. RESULTS In the histologic evaluation, no significant differences were observed between the controls and BMSC-administered mice in terms of incidence rate, number, or average size of foci and tumors. However, significant suppression of fibrosis and liver injury was confirmed in the group that received BMSC infusions. DISCUSSION Considering that BMSC infusion did not promote carcinogenesis, even in the state of highly oncogenic liver cirrhosis, autologous BMSC infusion might be a safe and effective therapy for human decompensated liver cirrhosis.
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Affiliation(s)
- K Matsuura
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - T Takami
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan; Center for Regenerative Medicine, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan.
| | - M Maeda
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - T Hisanaga
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan; Department of Medical Education, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - K Fujisawa
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan; Center for Regenerative Medicine, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - I Saeki
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - T Matsumoto
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan; Department of Oncology and Laboratory Medicine, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - I Hidaka
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan; Center for Liver Disease, Yamaguchi University Hospital, Yamaguchi University School of Medicine, Yamaguchi, Japan
| | - N Yamamoto
- Health Administration Center, Yamaguchi University, Yamaguchi, Japan
| | - I Sakaida
- Department of Gastroenterology and Hepatology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan; Center for Liver Disease, Yamaguchi University Hospital, Yamaguchi University School of Medicine, Yamaguchi, Japan
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Carr Z, Maeda M, Oughton D, Weiss W. NON-RADIOLOGICAL IMPACT OF A NUCLEAR EMERGENCY: PREPAREDNESS AND RESPONSE WITH THE FOCUS ON HEALTH. Radiat Prot Dosimetry 2018; 182:112-119. [PMID: 30219868 DOI: 10.1093/rpd/ncy163] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Indexed: 06/08/2023]
Abstract
Available experience from Chernobyl and Fukushima clearly demonstrate that nuclear emergencies may result in low and very low exposure levels, at which psychological and social effects among the affected population will dominate over the actual biological effects of ionising radiation. International protection standards and guidelines request, that both radiological and non-radiological health consequences have to be considered in preparedness and response to an actual emergency and there is a need to broaden the radiation protection system's philosophy beyond the metrics of radioactivity and radiation dose. During the past decade a number of multidisciplinary projects were set up with the aim of evaluating management options according to social, economic and ethical criteria, in addition to technical feasibility to achieve this goal. WHO and partners from the Inter-Agency Standing Committee Task Force on Mental Health and Psychosocial Support in Emergency Settings have developed a comprehensive framework and guidelines, which can be applied to any type of an emergency or disaster regardless of its origin. There is a need to include the available scientific expertise and the technical, managerial and personal resources to be considered within a similar 'decision framework' that will apply to radiation emergencies. Key areas of the required expertise needed to develop such a framework are radiation protection, medical support (especially primary care and emergency medicine, mental health support), social sciences (anthropology, psychology, ethics) and communications experts. The implementation of such a multidisciplinary concept in the operational world requires education and training well beyond the level currently available.
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Affiliation(s)
- Z Carr
- Department of Public Health, Environmental, and Social Determinants of Health, World Health Organization, Geneva, Switzerland
| | - M Maeda
- Fukushima Medical University, Fukushima, Japan
| | - D Oughton
- Centre for Environmental Radioactivity (CERAD), Norwegian University of Life Sciences, Aas, Norway
| | - W Weiss
- Hölderlinstr. 31, Emmendingen, Germany
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Miyamoto R, Sano N, Maeda M, Inagawa S. Three-dimensional remnant pancreatic volumetry as an indicator of poor prognosis in pancreatic cancer patients after pancreatoduodenectomy. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy432.052] [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: 11/12/2022] Open
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Maeda M, Maeda H, Iwase H, Kanda A, Morohashi I, Obayashi O, Kaneko K, Sato T, Arai Y. Dynamic motion and principal component analysis of step-over in patients with Musculoskeletal ambulation disability symptom complex (MADS). Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.1013] [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: 10/28/2022]
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Otaki N, Tanino N, Yokoro M, Yano M, Akita M, Uemura H, Maeda M, Fukuo K. Relationship between Economic Security and Self-Rated Health in Elderly Japanese Residents Living Alone. J Nutr Health Aging 2018; 22:695-699. [PMID: 29806858 DOI: 10.1007/s12603-017-0994-0] [Citation(s) in RCA: 4] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVES The purpose of this study was to assess the relationship between economic security and self-rated health for elderly Japanese residents living alone. DESIGN A secondary analysis of a cross-sectional study. SETTING N City, H. Prefecture, Japan. PARTICIPANTS Survey questionnaires were distributed to 2,985 elderly residents living alone, aged ≥70 years, of which, 1,939 (65.0%) were returned and treated as valid responses. MEASUREMENTS The survey included questions about gender, age, number of years spent in N City, self-rated health, economic security, number of years spent living alone, reason for living alone, life satisfaction, cooking frequency, frequency of seeing a doctor, long-term care service usage, as well as whether they enjoyed their lives, participated in social organizations. RESULTS Of the respondents, 1,563 (80.6%) reported that they were economically secure, and 376 (19.4%) responded that they were insecure. The odds ratio predicting poor self-rated health for the economically insecure participants was significantly high (odds ratio: 3.19, 95%, Confidence Interval (CI): 2.53-4.02, and P < 0.001). Similarly, the adjusted odds ratio for poor self-rated health was significantly high for the economically insecure participants in multivariate analyses controlling for factors such as age, gender, cooking frequency, and social participation (adjusted odds ratio: 2.21, 95%, CI: 1.70-2.88, and P < 0.001). Furthermore, a similar trend was observed in stratified analyses based on gender and age groups. CONCLUSION Economic security predicted self-rated health independently of confounders, including social participation and cooking frequency, among the elderly Japanese living alone in communities.
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Affiliation(s)
- N Otaki
- Keisuke Fukuo, Department of Food Sciences and Nutrition, School of Human Environmental Sciences, Mukogawa Women's University, 6-46 Ikebiraki-cho, Nishinomiya, Hyogo 663-8558, Japan, Tel and Fax: +81-798-45-9922,
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Makihara R, Maeda M, Itahashi K, Noda S, Sato J, Murakami S, Goto Y, Kanda S, Fujiwara Y, Horinouchi H, Tsukamoto T, Hashimoto H, Makino Y, Yamamoto N, Ohe Y, Terakado H. Dried plasma spot assay for sunitinib and its active metabolite by high performance liquid chromatography tandem mass spectrometry. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx678.004] [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: 11/13/2022] Open
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18
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Wu L, Luthringer BJC, Feyerabend F, Zhang Z, Machens HG, Maeda M, Taipaleenmäki H, Hesse E, Willumeit-Römer R, Schilling AF. Increased levels of sodium chloride directly increase osteoclastic differentiation and resorption in mice and men. Osteoporos Int 2017; 28:3215-3228. [PMID: 28849275 PMCID: PMC5635092 DOI: 10.1007/s00198-017-4163-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Accepted: 07/13/2017] [Indexed: 01/30/2023]
Abstract
UNLABELLED To better understand the association between high salt intake and osteoporosis, we investigated the effect of sodium chloride (NaCl) on mice and human osteoclastogenesis. The results suggest a direct, activating role of NaCl supplementation on bone resorption. INTRODUCTION High NaCl intake is associated with increased urinary calcium elimination and parathyroid hormone (PTH) secretion which in turn stimulates the release of calcium from the bone, resulting in increased bone resorption. However, while calciuria after NaCl loading could be shown repeatedly, several studies failed to reveal a significant increase in PTH in response to a high-sodium diet. Another possible explanation that we investigated here could be a direct effect of high-sodium concentration on bone resorption. METHODS Mouse bone marrow macrophage and human peripheral blood mononuclear cells (PBMC) driven towards an osteoclastogenesis pathway were cultivated under culture conditions mimicking hypernatremia environments. RESULTS In this study, a direct effect of increased NaCl concentrations on mouse osteoclast differentiation and function was observed. Surprisingly, in a human osteoclast culture system, significant increases in the number of tartrate-resistant acid phosphatase (TRAP)-positive osteoclasts, calcitonin receptor (CTR)-positive osteoclasts, nuclear factor-activated T cells c1 (NFATc1) gene expression, and areal and volumetric resorptions were observed for increasing concentrations of NaCl. This suggests a direct, activating, cell-mediated effect of increased concentrations of NaCl on osteoclasts. CONCLUSIONS The reported that enhanced bone resorption after high-sodium diets may not only be secondary to the urinary calcium loss but may also be a direct, cell-mediated effect on osteoclastic resorption. These findings allow us to suggest an explanation for the clinical findings independent of a PTH-mediated regulation.
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Affiliation(s)
- L Wu
- Department of Biological Characterisation, Institute for Materials Research, Helmholtz-Zentrum Geesthacht, Geesthacht, Germany
- Department of Plastic Surgery and Hand Surgery, Klinikum Rechts der Isar, Technical University Munich, Munich, Germany
| | - B J C Luthringer
- Department of Biological Characterisation, Institute for Materials Research, Helmholtz-Zentrum Geesthacht, Geesthacht, Germany
| | - F Feyerabend
- Department of Biological Characterisation, Institute for Materials Research, Helmholtz-Zentrum Geesthacht, Geesthacht, Germany
| | - Z Zhang
- Department of Plastic Surgery and Hand Surgery, Klinikum Rechts der Isar, Technical University Munich, Munich, Germany
- Department of Orthopedics, Hand Surgery Division, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - H G Machens
- Department of Plastic Surgery and Hand Surgery, Klinikum Rechts der Isar, Technical University Munich, Munich, Germany
| | - M Maeda
- Heisenberg Group for Molecular Skeletal Biology, Department of Trauma, Hand, and Reconstructive Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - H Taipaleenmäki
- Heisenberg Group for Molecular Skeletal Biology, Department of Trauma, Hand, and Reconstructive Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - E Hesse
- Heisenberg Group for Molecular Skeletal Biology, Department of Trauma, Hand, and Reconstructive Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - R Willumeit-Römer
- Department of Biological Characterisation, Institute for Materials Research, Helmholtz-Zentrum Geesthacht, Geesthacht, Germany
| | - A F Schilling
- Department of Plastic Surgery and Hand Surgery, Klinikum Rechts der Isar, Technical University Munich, Munich, Germany.
- Clinic for Trauma Surgery, Orthopedic Surgery, and Plastic Surgery, University Medical Center Göttingen, Göttingen, Germany.
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Niwa A, Ii Y, Shindo A, Matsuo K, Ishikawa H, Tanigushi A, Takase S, Maeda M, Akatsu Y, Hashizume Y, Tomimoto H. Comparative analysis of cortical microinfarcts and microbleeds using 3.0-tesla postmortem magnetic resonance images and histopathology. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2281] [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: 10/18/2022]
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20
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Maeda M, Kanzaki M, Uesaka Y, Shimizu J. Fascia in inflammatory myopathies: Histopathological findings. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2294] [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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21
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Narita Y, Fukuroku K, Matsuyama H, Ii Y, Tomimoto H, Maeda M. Two cases with long tinel sign on the median nerve due to a proximal tumor and the MR neurography. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2278] [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: 10/18/2022]
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22
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Ii Y, Maeda M, Ito A, Umino M, Kida H, Satoh M, Niwa A, Taniguchi A, Tomimoto H. Underlying etiology of cortical microinfarcts on 3T MRI in patients with cognitive impairment. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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23
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Saito K, Maeda M, Katada T. Regulation of the Sar1 GTPase Cycle Is Necessary for Large Cargo Secretion from the Endoplasmic Reticulum. Front Cell Dev Biol 2017; 5:75. [PMID: 28879181 PMCID: PMC5572378 DOI: 10.3389/fcell.2017.00075] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 08/10/2017] [Indexed: 12/22/2022] Open
Abstract
Proteins synthesized within the endoplasmic reticulum (ER) are transported to the Golgi via coat protein complex II (COPII)-coated vesicles. The formation of COPII-coated vesicles is regulated by the GTPase cycle of Sar1. Activated Sar1 is recruited to ER membranes and forms a pre-budding complex with cargoes and the inner-coat complex. The outer-coat complex then stimulates Sar1 inactivation and completes vesicle formation. The mechanisms of forming transport carriers are well-conserved among species; however, in mammalian cells, several cargo molecules such as collagen, and chylomicrons are too large to be accommodated in conventional COPII-coated vesicles. Thus, special cargo-receptor complexes are required for their export from the ER. cTAGE5/TANGO1 complexes and their isoforms have been identified as cargo receptors for these macromolecules. Recent reports suggest that the cTAGE5/TANGO1 complex interacts with the GEF and the GAP of Sar1 and tightly regulates its GTPase cycle to accomplish large cargo secretion.
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Affiliation(s)
- Kota Saito
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, University of TokyoTokyo, Japan
| | - Miharu Maeda
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, University of TokyoTokyo, Japan
| | - Toshiaki Katada
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, University of TokyoTokyo, Japan
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24
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Maeda M, Matsumoto T, Kobayashi H. Photoluminescence from vibrational excited-states for organic molecules adsorbed on Si nanoparticles. Phys Chem Chem Phys 2017; 19:21856-21861. [PMID: 28787060 DOI: 10.1039/c7cp01836c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, Si nanoparticles have been fabricated from Si swarf using a bead milling method. The adsorption of 9,10-dimethylanthracene (DMA) on Si nanoparticles enhances the photoluminescence (PL) intensity by ∼60 000 times that of DMA in hexane. The PL spectra possess peaked structures due to the vibronic transition of DMA. For the excitation energies higher than 4.0 eV, vibronic bands with energies higher than the (0, 0) band were observed and attributed to PL from the vibrational excited-states. The excitation spectra showed that incident light was absorbed by both DMA and the Si nanoparticles. The lifetime of the photo-generated electron-hole pairs in the Si nanoparticles was much longer than the DMA PL lifetime; this indicated that either a hole or an electron transferred to DMA first, followed by an opposite charge transfer. In the cases where a hole is first transferred to DMA, an electronic ground-state is stabilized via solvation. When an electron is captured by the potential of the electronic excited-state, transitions from the vibrational excited-states proceed due to the high transition probability, generating PL bands with energies higher than the (0, 0) band. In the cases where an electron is first transferred to DMA, internal relaxation to the vibrational ground-state occurs, and the potential of the electronic excited-state is lowered via solvation.
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Affiliation(s)
- M Maeda
- The Institute of Scientific and Industrial Research, Osaka University, 8-1, Mihogaoka, Ibaraki, Osaka 567-0047, Japan.
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25
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Kumagai Y, Song I, Maeda M, Tanaka R, Sakamoto Y, Aso M, Saito Y, Maekawa K, Fujita T. Effect of High Dose Acetaminophen on Liver Function Tests in Healthy Subjects. Clin Ther 2017. [DOI: 10.1016/j.clinthera.2017.05.019] [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: 10/19/2022]
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26
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Tamita K, Iwamura T, Maeda M, Tokuda T, Shimizu T, Takaoka N, Hyodo E, Hashimura H, Yamamuro A. P4320Enhancement patterns detected by multidetector computed tomography are associated with the long-term prognosis in patients with acute myocardial infarction. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p4320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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27
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Ge L, Zhang M, Kenny SJ, Liu D, Maeda M, Saito K, Mathur A, Xu K, Schekman R. Remodeling of ER-exit sites initiates a membrane supply pathway for autophagosome biogenesis. EMBO Rep 2017; 18:1586-1603. [PMID: 28754694 DOI: 10.15252/embr.201744559] [Citation(s) in RCA: 114] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 06/27/2017] [Accepted: 06/28/2017] [Indexed: 01/14/2023] Open
Abstract
Autophagosomes are double-membrane vesicles generated during autophagy. Biogenesis of the autophagosome requires membrane acquisition from intracellular compartments, the mechanisms of which are unclear. We previously found that a relocation of COPII machinery to the ER-Golgi intermediate compartment (ERGIC) generates ERGIC-derived COPII vesicles which serve as a membrane precursor for the lipidation of LC3, a key membrane component of the autophagosome. Here we employed super-resolution microscopy to show that starvation induces the enlargement of ER-exit sites (ERES) positive for the COPII activator, SEC12, and the remodeled ERES patches along the ERGIC A SEC12 binding protein, CTAGE5, is required for the enlargement of ERES, SEC12 relocation to the ERGIC, and modulates autophagosome biogenesis. Moreover, FIP200, a subunit of the ULK protein kinase complex, facilitates the starvation-induced enlargement of ERES independent of the other subunits of this complex and associates via its C-terminal domain with SEC12. Our data indicate a pathway wherein FIP200 and CTAGE5 facilitate starvation-induced remodeling of the ERES, a prerequisite for the production of COPII vesicles budded from the ERGIC that contribute to autophagosome formation.
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Affiliation(s)
- Liang Ge
- Howard Hughes Medical Institute and Department of Molecular and Cell Biology, University of California, Berkeley, CA, USA
| | - Min Zhang
- Howard Hughes Medical Institute and Department of Molecular and Cell Biology, University of California, Berkeley, CA, USA
| | - Samuel J Kenny
- Department of Chemistry, University of California, Berkeley, CA, USA
| | - Dawei Liu
- Howard Hughes Medical Institute and Department of Molecular and Cell Biology, University of California, Berkeley, CA, USA
| | - Miharu Maeda
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, University of Tokyo, Tokyo, Japan
| | - Kota Saito
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, University of Tokyo, Tokyo, Japan
| | - Anandita Mathur
- Howard Hughes Medical Institute and Department of Molecular and Cell Biology, University of California, Berkeley, CA, USA
| | - Ke Xu
- Department of Chemistry, University of California, Berkeley, CA, USA
| | - Randy Schekman
- Howard Hughes Medical Institute and Department of Molecular and Cell Biology, University of California, Berkeley, CA, USA
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28
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Nakatani Y, Maeda M, Matsumura M, Shimizu R, Banba N, Aso Y, Yasu T, Harasawa H. Effect of GLP-1 receptor agonist on gastrointestinal tract motility and residue rates as evaluated by capsule endoscopy. Diabetes Metab 2017. [PMID: 28648835 DOI: 10.1016/j.diabet.2017.05.009] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
AIM This study evaluated the effects of a glucagon-like peptide-1 receptor agonist on gastrointestinal (GI) tract motility and residue rates by examining GI transit time and lumen using capsule endoscopy. MATERIAL AND METHODS GI motility and lumen were assessed by capsule endoscopy before and after liraglutide administration in 14 patients with type 2 diabetes mellitus (T2DM). RESULTS Gastric transit time in the group with diabetic neuropathy (DN) was 1:12:36±1:04:30h before liraglutide administration and 0:48:40±0:32:52h after administration (nonsignificant difference, P=0.19). Gastric transit time in the non-DN group was 1:01:30±0:52:59h before administration and 2:33:29±1:37:24h after administration (significant increase, P=0.03). Duodenal and small intestine transit time in the DN group was 4:10:34±0:25:54h before and 6:38:42±3:52:42h after administration (not significant, P=0.09) and, in the non-DN group, 3:51:03±0:53:47h before and 6:45:31±2:41:36h after administration (significant increase, P=0.03). The GI residue rate in the DN group was 32.1±24% before administration and 90.0±9.1% after administration (significant increase, P<0.001), and increased in all patients; in the non-DN group, it was 32.1±35.3% before and 78.3±23.9% after administration (significant increase, P<0.001), and also increased in all patients. CONCLUSION Liraglutide causes delayed gastric emptying and inhibits duodenal and small intestine motility. However, these GI movement-inhibiting effects may be decreased or absent in patients with DN-associated dysautonomia.
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Affiliation(s)
- Y Nakatani
- Department of Diabetes and Endocrinology, Dokkyo Medical University Nikko Medical Center, 632, Takatoku Nikkoshi, 321-2593 Tochigi, Japan.
| | - M Maeda
- Department of Gastroenterology, Dokkyo Medical University Nikko Medical Center, 632, Takatoku Nikkoshi, 321-2593 Tochigi, Japan
| | - M Matsumura
- Department of Endocrinology and Metabolism, Dokkyo Medical University, 880, Kitakobayashi Shimotsugagun Mibumachi, 321-0293 Tochigi, Japan
| | - R Shimizu
- Department of Cardiovascular Medicine, Dokkyo Medical University Nikko Medical Center, 632, Takatoku Nikkoshi, 321-2593 Tochigi, Japan
| | - N Banba
- Department of Diabetes and Endocrinology, Dokkyo Medical University Nikko Medical Center, 632, Takatoku Nikkoshi, 321-2593 Tochigi, Japan
| | - Y Aso
- Department of Endocrinology and Metabolism, Dokkyo Medical University, 880, Kitakobayashi Shimotsugagun Mibumachi, 321-0293 Tochigi, Japan
| | - T Yasu
- Department of Cardiovascular Medicine, Dokkyo Medical University Nikko Medical Center, 632, Takatoku Nikkoshi, 321-2593 Tochigi, Japan
| | - H Harasawa
- Department of Pulmonary Medicine, Dokkyo Medical University Nikko Medical Center, 632, Takatoku Nikkoshi, 321-2593 Tochigi, Japan
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Affiliation(s)
- T. H. Pigford
- University of California, Berkeley Department of Nuclear Engineering Berkeley, California 94720
| | - C. S. Yang
- University of California, Berkeley Department of Nuclear Engineering Berkeley, California 94720
| | - M. Maeda
- University of California, Berkeley Department of Nuclear Engineering Berkeley, California 94720
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30
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Pilate S, Wouters RD, Wehmann U, Helm F, Scholtyssek W, Larsen EM, Abdel-Khalik SI, Ortman MS, Meyer CE, Bennett CL, Hill DJ, Dzikowski KJ, Kujawski E, Protsik R, Pigford TH, Yang CS, Maeda M, Lawrence LA, Hata DC, Washburn DF, Jung J, Abdou MA, Crump MW, Lee JC, Guild RD, Tourigny EG, Greenwood LR, Heinrich RR, Kennerley RJ, Medrzychowski R. Authors. NUCL TECHNOL 2017. [DOI: 10.13182/nt78-a32127] [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: 11/12/2022]
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31
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Maeda M, Katada T, Saito K. TANGO1 recruits Sec16 to coordinately organize ER exit sites for efficient secretion. J Cell Biol 2017; 216:1731-1743. [PMID: 28442536 PMCID: PMC5461033 DOI: 10.1083/jcb.201703084] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [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: 03/14/2017] [Revised: 04/11/2017] [Accepted: 04/12/2017] [Indexed: 12/27/2022] Open
Abstract
Mammalian endoplasmic reticulum (ER) exit sites export a variety of cargo molecules including oversized cargoes such as collagens. However, the mechanisms of their assembly and organization are not fully understood. TANGO1L is characterized as a collagen receptor, but the function of TANGO1S remains to be investigated. Here, we show that direct interaction between both isoforms of TANGO1 and Sec16 is not only important for their correct localization but also critical for the organization of ER exit sites. The depletion of TANGO1 disassembles COPII components as well as membrane-bound ER-resident complexes, resulting in fewer functional ER exit sites and delayed secretion. The ectopically expressed TANGO1 C-terminal domain responsible for Sec16 binding in mitochondria is capable of recruiting Sec16 and other COPII components. Moreover, TANGO1 recruits membrane-bound macromolecular complexes consisting of cTAGE5 and Sec12 to the ER exit sites. These data suggest that mammalian ER exit sites are organized by TANGO1 acting as a scaffold, in cooperation with Sec16 for efficient secretion.
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Affiliation(s)
- Miharu Maeda
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, University of Tokyo, Tokyo 113-0033, Japan
| | - Toshiaki Katada
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, University of Tokyo, Tokyo 113-0033, Japan
| | - Kota Saito
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, University of Tokyo, Tokyo 113-0033, Japan
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32
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Kamiya K, Ishikawa T, Yasumura S, Sakai A, Ohira T, Takahashi H, Ohtsuru A, Suzuki S, Hosoya M, Maeda M, Yabe H, Fujimori K, Yamashita S, Ohto H, Abe M. EXTERNAL AND INTERNAL EXPOSURE TO FUKUSHIMA RESIDENTS. Radiat Prot Dosimetry 2016; 171:7-13. [PMID: 27473698 DOI: 10.1093/rpd/ncw185] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The Great East Japan Earthquake of 11 March 2011, caused the Fukushima Daiichi Nuclear Power Plant Accident, which resulted in the release of a large amount of radioactive materials into the environment, and there is a serious concern about the radiation effects on the health of residents living in the affected areas. The evaluation of exposure dose is fundamental for the estimation of health effects, and whenever possible, the exposure dose should be evaluated by actual measurements as opposed to estimations. Here, the outline of the exposure doses of residents estimated from surveys or obtained by measurements is described. Fukushima Health Management Survey reported the results for 460 408 residents during the first 4 months after the accident; 66.3% received doses <1 mSv, 94.9% received <2 mSv, 99.7% received <5 mSv and the maximum dose was 25 mSv. Thus, it was demonstrated that the results from personal dosemeter measurements were comparable to the estimations. The dose assessment of internal exposure of 184 205 residents conducted by Fukushima Prefecture by using whole body counter showed that 99.986% received <1 mSv, with the maximum dose being 3 mSv. Regarding exposure of the thyroid, there is not enough data for the Fukushima accident, but it is presumed that thyroid doses are much lower than those from Chernobyl. The outline of exposure doses of residents in result of the accident is still being clarified, questions and uncertainties in dose assessment remain and further efforts for more accurate dosimetry are required continuously.
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Affiliation(s)
- K Kamiya
- Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima 734-8553, Japan Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
| | - T Ishikawa
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan School of Medicine, Fukushima Medical University, Fukushima 960-1295, Japan
| | - S Yasumura
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan School of Medicine, Fukushima Medical University, Fukushima 960-1295, Japan
| | - A Sakai
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan School of Medicine, Fukushima Medical University, Fukushima 960-1295, Japan
| | - T Ohira
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan School of Medicine, Fukushima Medical University, Fukushima 960-1295, Japan
| | - H Takahashi
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
| | - A Ohtsuru
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan School of Medicine, Fukushima Medical University, Fukushima 960-1295, Japan
| | - S Suzuki
- School of Medicine, Fukushima Medical University, Fukushima 960-1295, Japan
| | - M Hosoya
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan School of Medicine, Fukushima Medical University, Fukushima 960-1295, Japan
| | - M Maeda
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan School of Medicine, Fukushima Medical University, Fukushima 960-1295, Japan
| | - H Yabe
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan School of Medicine, Fukushima Medical University, Fukushima 960-1295, Japan
| | - K Fujimori
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan School of Medicine, Fukushima Medical University, Fukushima 960-1295, Japan
| | - S Yamashita
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan Atomic Bomb Disease Institute, Nagasaki University, Nagasaki 852-8521, Japan
| | - H Ohto
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan School of Medicine, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Masafumi Abe
- Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, Fukushima 960-1295, Japan
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33
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Yasuda R, Maeda M, Umino M, Nakatsuka Y, Umeda Y, Toma N, Sakaida H, Suzuki H. Suspected Metallic Embolism following Endovascular Treatment of Intracranial Aneurysms. AJNR Am J Neuroradiol 2016; 37:1696-9. [PMID: 27102315 DOI: 10.3174/ajnr.a4804] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [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: 12/27/2015] [Accepted: 03/03/2016] [Indexed: 11/07/2022]
Abstract
We describe a case series of suspected metallic embolism after coil embolization for intracranial aneurysms. Between January 2012 and December 2014, 110 intracranial aneurysms had been treated by coil embolization in our institution. In 6 cases, the postprocedural MR imaging revealed abnormal spotty lesions not detected on the preprocedural MR imaging. The lesions were also undetectable on the postprocedural CT scan. They were demonstrated as low-intensity spots on T1WI, T2WI, DWI, and T2*-weighted imaging. On DWI, they were accompanied by bright "halo," and on T2*-weighted imaging, they showed a "blooming" effect. In 3 of the 6 cases, follow-up MR imaging was available and all the lesions remained and demonstrated no signal changes. Although histologic examination had not been performed, these neuroradiologic findings strongly supported the lesions being from metallic fragments. No specific responsible device was detected after reviewing all the devices used for the neuroendovascular treatment in the 6 cases.
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Affiliation(s)
- R Yasuda
- From the Departments of Neurosurgery (R.Y., Y.N., Y.U., N.T., H.Sakaida, H.Suzuki)
| | - M Maeda
- Radiology (M.U., M.M.), Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - M Umino
- Radiology (M.U., M.M.), Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Y Nakatsuka
- From the Departments of Neurosurgery (R.Y., Y.N., Y.U., N.T., H.Sakaida, H.Suzuki)
| | - Y Umeda
- From the Departments of Neurosurgery (R.Y., Y.N., Y.U., N.T., H.Sakaida, H.Suzuki)
| | - N Toma
- From the Departments of Neurosurgery (R.Y., Y.N., Y.U., N.T., H.Sakaida, H.Suzuki)
| | - H Sakaida
- From the Departments of Neurosurgery (R.Y., Y.N., Y.U., N.T., H.Sakaida, H.Suzuki)
| | - H Suzuki
- From the Departments of Neurosurgery (R.Y., Y.N., Y.U., N.T., H.Sakaida, H.Suzuki)
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Abstract
We describe the MR appearance of a case of monostotic fibrous dysplasia confined to the clivus. The lesion showed intermediate signal intensity on T2-weighted images which is uncommon among clival diseases.
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Abstract
Ten temporomandibular joints (TMJs) of 5 healthy volunteers and 19 TMJs of internal derangements in 16 patients with splint therapy were examined with MR imaging. T1-weighted images were obtained only in the closed mouth position, and gradient recalled acquisition in steady state (GRASS) images were obtained in active opening and closing phases, allowing a pseudodynamic display of TMJ movement. All patients received protrusive splint treatment. The usefulness of MR imaging to assess the efficacy of splint therapy was evaluated. Corrected disk position with the splint in place was clearly demonstrated in 9 TMJs, corresponding with elimination of reciprocal clicking. Ten other TMJs of anterior disk displacement without reduction showed uncorrected disk position by the splint. This information could confirm the therapeutic efficacy, or suggest other treatment alternatives. GRASS MR imaging can provide accurate and physiologic information about disk function in initial and follow-up assessment of protrusive splint therapy.
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Mitsumori M, Hayakawa K, Soga T, Maeda M, Torizuka T, Okuno Y, Misaki T, Dokoh S. Effects of Contrast Media on the RR and QT Interval during Coronary Arteriography. Acta Radiol 2016. [DOI: 10.1177/028418519103200206] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
During coronary arteriography, transient prolongation of the RR and QT intervals can be observed to occur. Animal experiments have suggested that low-osmolality contrast media have less effect, but there have been few clinical studies of this phenomenon. We analyzed 95 electrocardiographic records from patients who had undergone coronary arteriography and assessed the maximal prolongation of the RR and QT intervals. The contrast media used for arteriography included meglumine sodium diatrizoate, iopamidol, iohexol, and meglumine sodium ioxaglate. Diatrizoate caused the greatest electrocardiographic changes. Among the low osmolality contrast media, ioxaglate caused the smallest bradycardial effect and iohexol the smallest prolongation of the QT interval. It appears necessary to consider some additional factors for osmolality or ionicity, such as the chemotoxicity of the chemical structure of the iodinated contrast medium moiety, when assessing their potential adverse effect on the cardiac conduction system.
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Maeda M, Saito K, Katada T. Distinct isoform-specific complexes of TANGO1 cooperatively facilitate collagen secretion from the endoplasmic reticulum. Mol Biol Cell 2016; 27:2688-96. [PMID: 27413011 PMCID: PMC5007089 DOI: 10.1091/mbc.e16-03-0196] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [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: 03/24/2016] [Accepted: 07/08/2016] [Indexed: 11/11/2022] Open
Abstract
The short isoform of TANGO1, termed TANGO1S, is necessary for collagen secretion from the ER independently of TANGO1L. TANGO1L and TANGO1S form individual complexes at ER exit sites and cooperatively participate in collagen export from the ER. Collagens synthesized within the endoplasmic reticulum (ER) are too large to fit in conventional COPII-coated transport vesicles; thus their export from the ER requires specialized factors. TANGO1 (L) is an integral membrane protein that binds to collagen and the coatomer of vesicles and is necessary for collagen secretion from the ER. Here we characterized the short isoform of TANGO1 (TANGO1S), lacking the collagen-binding domain, and found that it was independently required for collagen export from the ER. Moreover, we found that each of the TANGO1 isoforms forms a stable protein complex with factors involved in collagen secretion: TANGO1L/cTAGE5/Sec12 (900 kDa) and TANGO1S/cTAGE5/Sec12 (700 kDa). Of interest, TANGO1S and TANGO1L seemed to be interchangeable in exporting collagen from the ER. Our results suggest that mammalian ER exit sites possess two different-sized membrane-bound macromolecular complexes that specifically function in large-cargo export from the ER.
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Affiliation(s)
- Miharu Maeda
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, University of Tokyo, Tokyo 113-0033, Japan
| | - Kota Saito
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, University of Tokyo, Tokyo 113-0033, Japan
| | - Toshiaki Katada
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, University of Tokyo, Tokyo 113-0033, Japan
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Kikuchi S, Makita H, Konno U, Shiraishi F, Ijiri A, Takai K, Maeda M, Takahashi Y. Limited reduction of ferrihydrite encrusted by goethite in freshwater sediment. Geobiology 2016; 14:374-389. [PMID: 27027643 DOI: 10.1111/gbi.12181] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Accepted: 01/18/2016] [Indexed: 06/05/2023]
Abstract
Many physical and chemical processes control the extent of Fe(III) oxyhydroxide reduction by dissimilatory Fe(III)-reducing bacteria. The surface precipitation of secondary Fe minerals on Fe(III) oxyhydroxides limits the extent of microbial Fe(III) reduction, but this phenomenon has not yet been observed in nature. This paper reports the observation of secondary Fe-mineral (goethite) encrustation on ferrihydrite surface within freshwater sediment up to 10 cm deep. The sediment surface was characterized by the predominance of ferrihydrites with biogenic stalks and sheaths. An Fe(II)-oxidizing bacterium (Gallionellaceae) was detected by 16S rRNA gene analysis at sediment depths of 1 and 2 cm. Fe(2+) concentration in the sediment pore water was relatively higher at 2-4 cm depths. The 16S rRNA genes affiliated with dissimilatory Fe(III)-reducing bacteria were detected at 1, 2, and 4 cm depths. The results of the Fe K-edge extended X-ray absorption fine structure (EXAFS) analysis suggested the presence of goethite and siderite at depths below 3 cm. However, the change in the Fe-mineral composition was restricted to sediment depths between 3 and 4 cm, despite the presence of abundant ferrihydrite at depths below 4 cm. An increase in CH4 concentration was observed at deeper than 6 cm. Stable isotopic analysis of CH4 in the pore water indicated that acetoclastic CH4 occurred at depths below 7 cm. Transmission electron microscope observations suggested the presence of goethite and siderite on stalks and sheaths at depths below 3 cm. Results from conversion electron yield EXAFS analysis suggested that goethite dominated at 10 cm depth, thereby indicating that ferrihydrite was encrusted by goethite at this depth. Moreover, the incomplete reduction of ferrihydrite below depths of 4 cm was not due to the lack of organic carbon, but was possibly due to the surface encrustation of goethite on ferrihydrite.
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Affiliation(s)
- S Kikuchi
- Department of Earth and Planetary Systems Science, Graduate School of Science, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
- Project Team for Development of New-Generation Research Protocol for Submarine Resources, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Japan
| | - H Makita
- Department of Subsurface Geobiological Analysis and Research (d-SUGAR), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Japan
| | - U Konno
- Department of Subsurface Geobiological Analysis and Research (d-SUGAR), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Japan
| | - F Shiraishi
- Department of Earth and Planetary Systems Science, Graduate School of Science, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
| | - A Ijiri
- Kochi Institute for Core Sample Research, Agency for Marine-Earth Science and Technology (JAMSTEC), Nankoku, Kochi, Japan
| | - K Takai
- Department of Subsurface Geobiological Analysis and Research (d-SUGAR), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Japan
| | - M Maeda
- Department of Technical Center, Hiroshima University, Higashi-Hiroshima, Japan
| | - Y Takahashi
- Department of Earth and Planetary Systems Science, Graduate School of Science, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
- Department of Earth and Planetary Science, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
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Hashiba K, Nio-Kobayashi J, Sano M, Maeda M, Kimura Y, Yamamoto Y, Kimura K, Okuda K. Possible Contribution of Alpha2,6-Sialylation to Luteolysis in Cows by Inhibiting the Luteotropic Effects of Galectin-1. Biol Reprod 2016; 95:17. [DOI: 10.1095/biolreprod.116.140194] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Accepted: 05/26/2016] [Indexed: 11/01/2022] Open
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Tanabe T, Maeda M, Saito K, Katada T. Dual function of cTAGE5 in collagen export from the endoplasmic reticulum. Mol Biol Cell 2016; 27:2008-13. [PMID: 27170179 PMCID: PMC4927275 DOI: 10.1091/mbc.e16-03-0180] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [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: 03/22/2016] [Accepted: 05/06/2016] [Indexed: 11/22/2022] Open
Abstract
Two functionally irreplaceable and molecularly separable modules in cTAGE5 are both required for collagen VII export from the ER. The concentration of Sec12 induced by cTAGE5 serves for efficient production of activated Sar1 around ER exit sites, and the GTPase cycle of Sar1 seems to be required for collagen VII export from the ER. Two independent functions of cTAGE5 have been reported in collagen VII export from the endoplasmic reticulum (ER). cTAGE5 not only forms a cargo receptor complex with TANGO1, but it also acts as a scaffold to recruit Sec12, a guanine-nucleotide exchange factor for Sar1 GTPase, to ER exit sites. However, the relationship between the two functions remains unclear. Here we isolated point mutants of cTAGE5 that lost Sec12-binding ability but retained binding to TANGO1. Although expression of the mutant alone could not rescue the defects in collagen VII secretion mediated by cTAGE5 knockdown, coexpression with Sar1, but not with the GTPase-deficient mutant, recovered secretion. The expression of Sar1 alone failed to rescue collagen secretion in cTAGE5-depleted cells. Taken together, these results suggest that two functionally irreplaceable and molecularly separable modules in cTAGE5 are both required for collagen VII export from the ER. The recruitment of Sec12 by cTAGE5 contributes to efficient activation of Sar1 in the vicinity of ER exit sites. In addition, the GTPase cycle of Sar1 appears to be responsible for collagen VII exit from the ER.
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Affiliation(s)
- Tomoya Tanabe
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, University of Tokyo, Tokyo 113-0033, Japan
| | - Miharu Maeda
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, University of Tokyo, Tokyo 113-0033, Japan
| | - Kota Saito
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, University of Tokyo, Tokyo 113-0033, Japan
| | - Toshiaki Katada
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, University of Tokyo, Tokyo 113-0033, Japan
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41
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Gouraud SS, Takagishi M, Kohsaka A, Maeda M, Waki H. Altered neurotrophic factors' expression profiles in the nucleus of the solitary tract of spontaneously hypertensive rats. Acta Physiol (Oxf) 2016; 216:346-57. [PMID: 26485190 DOI: 10.1111/apha.12618] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [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: 04/21/2015] [Revised: 05/19/2015] [Accepted: 10/10/2015] [Indexed: 01/09/2023]
Abstract
AIM Our previous findings suggest that the nucleus of the solitary tract (NTS), a pivotal region for regulating the set point of arterial pressure, exhibits abnormal inflammation in pre-hypertensive and spontaneously hypertensive rats (SHRs), with elevated anti-apoptotic and low apoptotic factor levels compared with that of normotensive Wistar-Kyoto (WKY) rats. Whether this chronic condition affects neuronal growth and plasticity in the NTS remains unknown. To unveil the characteristics of the neurodevelopmental environment in the NTS of SHRs, we investigated the expression of neurotrophic factors transcripts in SHRs. METHODS RT(2) Profiler PCR Array targeting rat neurotrophins and their receptors was used to screen for differentially expressed transcripts in the NTS of SHRs compared to that of WKY rats. Protein expression and physiological functions of some of the differentially expressed transcripts were also studied. RESULTS Gene and protein expressions of glial cell line-derived neurotrophic factor family receptor alpha-3 (Gfrα-3) factor were both upregulated in the NTS of adult SHRs. Gene expressions of corticotropin-releasing hormone-binding protein (Crhbp), interleukin-10 receptor alpha (Il-10ra) and hypocretin (Hcrt) were downregulated in the NTS of adult SHRs. The Gfrα-3 transcript was increased and the Hcrt transcript was decreased in the NTS of young pre-hypertensive SHRs, suggesting that these profiles are not secondary to hypertension. Moreover, microinjection in the NTS of hypocretin-1 decreased blood pressure in adult SHRs. CONCLUSION These results suggest that altered neurotrophic factors transcript profiles may affect the normal development and function of neuronal circuitry that regulates cardiovascular autonomic activity, thereby resulting in manifestations of neurogenic hypertension in SHRs.
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Affiliation(s)
- S. S. Gouraud
- Department of Biology; Faculty of Science; Ochanomizu University; Tokyo Japan
| | - M. Takagishi
- Department of Physiology; Wakayama Medical University; Wakayama Japan
| | - A. Kohsaka
- Department of Physiology; Wakayama Medical University; Wakayama Japan
| | - M. Maeda
- Department of Physiology; Wakayama Medical University; Wakayama Japan
| | - H. Waki
- Graduate School of Sport and Health Science; Juntendo University; Chiba Japan
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Hasegawa A, Ohira T, Maeda M, Yasumura S, Tanigawa K. Emergency Responses and Health Consequences after the Fukushima Accident; Evacuation and Relocation. Clin Oncol (R Coll Radiol) 2016; 28:237-244. [PMID: 26876459 DOI: 10.1016/j.clon.2016.01.002] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 01/05/2016] [Indexed: 11/16/2022]
Abstract
The Fukushima accident was a compounding disaster following the strong earthquake and huge tsunami. The direct health effects of radiation were relatively well controlled considering the severity of the accident, not only among emergency workers but also residents. Other serious health issues include deaths during evacuation, collapse of the radiation emergency medical system, increased mortality among displaced elderly people and public healthcare issues in Fukushima residents. The Fukushima mental health and lifestyle survey disclosed that the Fukushima accident caused severe psychological distress in the residents from evacuation zones. In addition to psychiatric and mental health problems, there are lifestyle-related problems such as an increase proportion of those overweight, an increased prevalence of hypertension, diabetes mellitus and dyslipidaemia and changes in health-related behaviours among evacuees; all of which may lead to an increased cardiovascular disease risk in the future. The effects of a major nuclear accident on societies are diverse and enduring. The countermeasures should include disaster management, long-term general public health services, mental and psychological care, behavioural and societal support, in addition to efforts to mitigate the health effects attributable to radiation.
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Affiliation(s)
- A Hasegawa
- Department of Radiation Disaster Medicine, Fukushima Medical University School of Medicine, Fukushima, Japan.
| | - T Ohira
- Department of Epidemiology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - M Maeda
- Department of Disaster Psychiatry, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - S Yasumura
- Department of Public Health, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - K Tanigawa
- Fukushima Global Medical Science Center, Fukushima Medical University, Fukushima, Japan
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Yamada T, Kawakami S, Yoshida Y, Kawamura H, Ohta S, Abe K, Hamada H, Dohi S, Ichizuka K, Takita H, Baba Y, Matsubara S, Mochizuki J, Unno N, Maegawa Y, Maeda M, Inubashiri E, Akutagawa N, Kubo T, Shirota T, Oda Y, Yamada T, Yamagishi E, Nakai A, Fuchi N, Masuzaki H, Urabe S, Kudo Y, Nomizo M, Sagawa N, Maeda T, Kamitomo M, Kawabata K, Kataoka S, Shiozaki A, Saito S, Sekizawa A, Minakami H. Influenza 2014–2015 among pregnant Japanese women: primiparous vs multiparous women. Eur J Clin Microbiol Infect Dis 2016; 35:665-71. [DOI: 10.1007/s10096-016-2585-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Accepted: 01/13/2016] [Indexed: 11/28/2022]
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44
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Nomura K, Terai H, Yabe K, Maeda M, Rahman MSM, Yoshida M, Yonemoto JY. Comparison of changes in sugars and ethylene production of cherimoya fruit grown at different seasons. ACTA ACUST UNITED AC 2015. [DOI: 10.1080/14620316.1997.11515551] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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45
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Sato Y, Ohnuma H, Hirakawa M, Osuga T, Okagawa Y, Sagawa T, Takahashi Y, Takahashi M, Maeda M, Katsuki S, Hirayama M, Kikuchi S, Murase K, Takada K, Sato T, Miyanishi K, Kobune M, Takimoto R, Takayama T, Kato J. 2298 Docetaxel, cisplatin and S-1 (DCS) combination chemotherapy for gastric cancer patients with peritoneal metastasis: a multi-institute retrospective study. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31214-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Abstract
Proliferation and differentiation of the epidermis in organ culture of adult human skin by the sponge matrix method were studied histologically and autoradiographically, and the following results were obtained: 1) On the first day of culture, mitotic figures were already observable in the epidermis. The outgrowth of epidermal cells at the margins of the explants started. On the second day, there was transformation to a zone that will be referred to as the newly formed stratum corneum in the upper epidermis. 2) On the third and fourth days, the increased growth of epidermal cells caused thickening of the epidermis. Simultaneously, Malpighian cells progressively differentiated into a cornified layer. 3) On and after the fifth day, the basospinous cell layer was reduced in thickness in most of explants. On the ninth and tenth days, DNA synthesis in the basal layer was still obvious, although the epidermis showed a thickness of only one or two cells overlaid with a large number of horny layers. 4) In the culture medium supplemented with corticosteroid, the epidermal growth was slightly depressed with lessened formation of stratum corneum in the early stages of culture as compared with the explants cultured in the basic medium. The reduction of the basospinous layer was scarcely notable after the fifth day. Even after 10-11 days, epidermal cells were well preserved and their stratified squamous architecture was less disorganized. It seemed that corticosteroid could prolong the survival of adult human skin in vitro. These findings indicate that this culture technique could be used as a model for organ culture of adult human skin.
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Affiliation(s)
- H Yasuno
- Department of Dermatology, Kyoto Prefectural University of Medicine, Kawara-machi, Hirokoji, Kamikyo-ku, Kyoto, Japan
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Takahashi G, Maeda M, Kimura Y, Funahashi H. 16 BIOCHEMICAL ANALYSIS OF COMPONENT IN SEMINAL GEL SECRETED WITH BOAR SEMEN. Reprod Fertil Dev 2015. [DOI: 10.1071/rdv27n1ab16] [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: 11/23/2022] Open
Abstract
Seminal gel (SG), a part of semen, of the boar originates from secretions from the Cowper's gland and has a high viscosity and water-holding capacity, preventing backflow of semen at natural mating. However, there are is little information available about biochemical and functional characteristics of boar SG. In this study, as a first step to elucidate the chemical features of the SG, we examined the structure of O-glycans and the primary structure of protein from the boar SG. Seminal gel was collected from ejaculated semen of a Berkshire boar with high fertility and freeze-dried. Samples were preserved in a refrigerator until experiments were conducted. For Exp. 1 the presence of O-glycans in SG was confirmed by detection of the amino sugar, galactosamine (GalNH2), from acid hydrolysis of GalNAc. The freeze-dried SG (1 mg) was hydrolyzed with 4N trifluoroacetic acid at 110°C for 2 h. The resulting amino sugar was labelled with phenyl isothiocyanate (PITC) and then analysed by RP-HPLC. The GalNAc was detected as a main amino sugar, suggesting that the SG contains O-glycosylated glycoprotein. For Exp. 2 the O-glycans were prepared from the freeze-dried SG (5 mg) by hydrazinolysis at 100°C for 2 h. After N-acetylation, the O-glycans were pyridylaminated. The structures were identified by anion-exchange HPLC, size-fractionation HPLC, glycosidase digestion, and ESI-MS and MS/MS analysis. Almost all glycans were digested by α2–3,6-sialidasae, indicating that these O-glycans are sialylated and give the glycoproteins viscosity. Furthermore, the MS analysis showed that the de-sialylated O-glycans consist of HexNAc-PA (m/z 300.0) and Hex-HexNAc-PA (m/z 462.0) and major glycans are di- or tri-saccharides. For Exp. 3 proteins in the SG were separated by sodium dodecyl sulfate-polyacrylamide gel electrophoresis under reducing condition with 5% 2-mercaptoethanol. Proteins were stained with Coomassie Brilliant Blue R-250. Three bands (~160, 140, and 70 kDa) were found on 7.5% polyacrylamide gel, but two bands (160, 140 kDa) were converted to ~130 kDa after the sialidase digestion, indicating that native two proteins (160 and 140 kDa) may be highly sialylated. For Exp. 4 internal amino acid sequence was analysed using one of the peptic peptides. The freeze-dried SG (5 mg) was digested with porcine pepsin in 5% formic acid at 37°C for 3 h. The resulting peptides were separated by RP-HPLC. N-terminal sequence of one of the peptic peptides was WSEKYGIPGGKAH. The amino acid sequence showed a high homology with tyrosine-protein kinase ZAP-70. These results suggest that boar SG contains mucin-like glycoproteins carrying heavily sialylated O-glycans. Additionally, the current study suggests a possibility that some protein components of the boar SG derive from high concentration of the kinase in (dead) sperms.
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Yamada T, Abe K, Baba Y, Inubashiri E, Kawabata K, Kubo T, Maegawa Y, Fuchi N, Nomizo M, Shimada M, Shiozaki A, Hamada H, Matsubara S, Akutagawa N, Kataoka S, Maeda M, Masuzaki H, Sagawa N, Nakai A, Saito S, Minakami H. Vaccination during the 2013-2014 influenza season in pregnant Japanese women. Eur J Clin Microbiol Infect Dis 2014; 34:543-8. [PMID: 25311988 DOI: 10.1007/s10096-014-2259-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2014] [Accepted: 09/29/2014] [Indexed: 11/24/2022]
Abstract
This questionnaire survey was conducted at 11 hospitals in Japan to determine vaccination coverage against seasonal influenza and the prevalence rate of influenza among pregnant Japanese women. Of 2,808 postpartum women who gave birth at the 11 hospitals during the study period from March 1, 2014, to July 31, 2014, 1,713 (61 %) participated in this study and 876 (51 %) reported having received vaccination against influenza in or after October 2013. Women aged <25 years had a significantly lower vaccination rate than those aged ≥25 years (31 % vs. 53 %, respectively; p = 0.0000). Eighty-seven (5.1 %) and 1,626 (94.9 %) women did and did not contract influenza, respectively. Although prior birth did not affect overall vaccination coverage (50 % for primiparous vs. 53 % for multiparous), multiparous women had a significantly higher rate of contracting influenza than primiparous women, irrespective of vaccination status (5.6 % vs. 2.2 % [p = 0.0216] and 9.7 % vs. 3.5 % [p = 0.0003] for women with and without vaccination, respectively). The 2013-2014 vaccination program significantly reduced the influenza infection rate by 35 % (3.9 % vs. 6.3 % for women with and without vaccination, respectively; p = 0.0272). Seventy-two (83 %) of the 87 women took antiviral agents for the treatment of influenza and two (2.3 %) required hospitalization. These results suggested that pregnant Japanese women had a high level of concern regarding seasonal influenza. However, campaigns targeting young pregnant Japanese women, as well as multiparous women, for vaccination are needed in order to further reduce the incidence of influenza among pregnant Japanese women.
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Affiliation(s)
- T Yamada
- Department of Obstetrics and Gynecology, Hokkaido University Graduate School of Medicine, N15W7, Kita-ku, Sapporo, 060-8638, Japan,
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Ueyama Y, Yagyuu T, Maeda M, Kirita T. 0steogenic potential of the osteogenic matrix cell sheets in maxillofacial regeneration. J Oral Maxillofac Surg 2014. [DOI: 10.1016/j.joms.2014.06.358] [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: 10/24/2022]
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50
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Sato Y, Ohnuma H, Takayama T, Sagawa T, Hirakawa M, Sato Y, Takahashi Y, Takahashi M, Maeda M, Katsuki S, Hirayama M, Takada K, Hayashi T, Sato T, Miyanishi K, Kobune M, Takimoto R, Nobuoka T, Hirata K, Kato J. Treatment Strategy for Conversion Therapy Using Docetaxel/Cddp/S-1 (Dcs) or Dcs-Trastuzumab (Dcs-T) According to Her2 Status in Metastatic Gastric Cancer Patients. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu334.41] [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: 11/14/2022] Open
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