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Kitano F, Marui Y, Sakurai K, Shibagaki Y, Sakurada T, Kojima S. Use of the Superficialized Brachial Artery as Vascular Access for a Patient with Myasthenia Gravis with a Frequent Need for Plasmapheresis: A Case Report. Intern Med 2024:2990-23. [PMID: 38220192 DOI: 10.2169/internalmedicine.2990-23] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2024] Open
Abstract
A 41-year-old woman diagnosed with seronegative myasthenia gravis struggled to maintain remission for a decade, facing crises every 3 months for several years. After repeated apheresis using a non-tunneled non-cuffed central venous dialysis catheter (NTNCC), complications such as catheter-related thrombus in the internal jugular veins and morbid obesity from steroids made the insertion of NTNCC increasingly difficult, leading to consideration of an alternative permanent vascular access (VA) approach. Thus, we created a subcutaneously superficialized brachial artery as the VA, which allowed the patient to undergo safe and uninterrupted apheresis therapy.
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Affiliation(s)
- Fumiya Kitano
- Division of Nephrology and Hypertension, Department of Internal Medicine, St. Marianna University School of Medicine, Japan
| | - Yuhji Marui
- Department of Urology, St. Marianna University School of Medicine, Japan
| | - Kenzo Sakurai
- Division of Neurology, Department of Internal Medicine, St. Marianna University School of Medicine, Japan
| | - Yugo Shibagaki
- Division of Nephrology and Hypertension, Department of Internal Medicine, St. Marianna University School of Medicine, Japan
| | - Tsutomu Sakurada
- Division of Nephrology and Hypertension, Department of Internal Medicine, St. Marianna University School of Medicine, Japan
| | - Shigeki Kojima
- Division of Nephrology and Hypertension, Department of Internal Medicine, St. Marianna University School of Medicine, Japan
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2
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Tseng CH, Chow HM, Spillmann L, Oxner M, Sakurai K. Body Pitch Together With Translational Body Motion Biases the Subjective Haptic Vertical. Multisens Res 2022; 36:1-29. [PMID: 36731530 DOI: 10.1163/22134808-bja10086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 11/15/2022] [Indexed: 12/27/2022]
Abstract
Accurate perception of verticality is critical for postural maintenance and successful physical interaction with the world. Although previous research has examined the independent influences of body orientation and self-motion under well-controlled laboratory conditions, these factors are constantly changing and interacting in the real world. In this study, we examine the subjective haptic vertical in a real-world scenario. Here, we report a bias of verticality perception in a field experiment on the Hong Kong Peak Tram as participants traveled on a slope ranging from 6° to 26°. Mean subjective haptic vertical (SHV) increased with slope by as much as 15°, regardless of whether the eyes were open (Experiment 1) or closed (Experiment 2). Shifting the body pitch by a fixed degree in an effort to compensate for the mountain slope failed to reduce the verticality bias (Experiment 3). These manipulations separately rule out visual and vestibular inputs about absolute body pitch as contributors to our observed bias. Observations collected on a tram traveling on level ground (Experiment 4A) or in a static dental chair with a range of inclinations similar to those encountered on the mountain tram (Experiment 4B) showed no significant deviation of the subjective vertical from gravity. We conclude that the SHV error is due to a combination of large, dynamic body pitch and translational motion. These observations made in a real-world scenario represent an incentive to neuroscientists and aviation experts alike for studying perceived verticality under field conditions and raising awareness of dangerous misperceptions of verticality when body pitch and translational self-motion come together.
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Affiliation(s)
- Chia-Huei Tseng
- Research Institute of Electrical Communication, Tohoku University, Sendai, 980-8577, Japan
| | - Hiu Mei Chow
- Department of Psychology, St. Thomas University, Fredericton, E3B 5G3, Canada
| | - Lothar Spillmann
- Neurology Clinic, University of Freiburg, 79106 Freiburg, Germany
| | - Matt Oxner
- Wilhelm Wundt Institute for Psychology, University of Leipzig, 04109 Leipzig, Germany
| | - Kenzo Sakurai
- Department of Human Science, Tohoku Gakuin University, Sendai, 981-3193, Japan
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3
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Sakurai K, Yajima N, Yanai R. AB0242 RELATIONSHIP BETWEEN FALLS AND FALL RISK MEDICATION IN PATIENTS WITH RHEUMATOID ARTHRITIS. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BackgroundFalls are a serious event that can lead to disability and death. The use of hypnotics, anxiolytics, and antidepressants has been reported drugs associated with higher risk of falls. Rheumatoid arthritis (RA) is associated with a high risk of falls, which is an important issue because it can lead to fractures. Patients with RA have a higher incidence of sleep disorders, depression, and anxiety disorders. They are likely to be prescribed fall risk medications.ObjectivesWe conducted a retrospective study of the incidence of falls in patients with RA, who are more prone to fractures and falls, using fall risk medications, especially hypnotics and anxiolytics, which aimed to determine the relationship between falls and fall risk medications in patients with RA.MethodsThis study is a retrospective cohort study conducted in Showa University Hospital between December 1, 2019 and March 31, 2020. We included of RA patients who visited the outpatient and fulfilled the American College of Rheumatology (ACR) /European League against Rheumatism (EULAR) classification 2010 criteria. The main exposure was the fall risk medication. The fall risk medication group was defined as RA patients who were prescribed fall risk medication (sedative/hypnotic, antidepressants, antipsychotics, and anxiolytic (benzodiazepines) drugs) for all the observational period. The comparison group was defined as RA patients who had never been prescribed any fall risk medications. Outcome measure was the prevalence of fall incidents in the past one year, obtained by using questionnaires to patients. Logistic regression analysis was performed to investigated the relationship between the prevalence of fall incidents and the use of fall-risk medications. The co-variables we selected were as follows: age, sex, stroke, dementia, diabetes and osteoarthritis as covariates.ResultsWe obtained data from 331 patients, of which 303 were included in the analysis. Among the 303 patients, the median age was 67 years (56-75), and 78.5% were women. Of the 303 patients, 45 patients used fall risk medication and 69 patients experienced at least one fall in a year. Of the 45 patients who used fall risk medication, 18 patients experienced at least one fall in a year. Of the 69 patients who experienced falls, 30 patients experienced twice or more falls in a year. Of the 18 patients who used fall risk medication and experienced falls, 9 patients experienced twice or more falls. 4 patients were admitted to the hospital as result of falls, 2 patients used fall risk medication. These results are shown as percentages in Figure 1. The group of fall risk medication was significantly higher than using non fall risk medication. (adjusted odds ratio (AOR) 2.31, 95% Confidence Interval (CI) 1.14-4.68, p=0.02).Figure 1.ConclusionUse of fall risk medications may have increased falls for patients with RA.AcknowledgementsCooperation on data collection: Division of Rheumatology, Department of Medicine, Showa University School of Medicine; Yusuke Miwa, Takeo Isozaki, Kuninobu Wakabayashi, Ryo Takahashi, Sakiko Isojima, Hidekazu Furuya, Nao Ogro, Sho Ishii, Yoko Miura, Mika Hatano, Shinichiro Nishimi, Airi Nishimi, Tomoki Hayashi, Yumeko TaniguchiDisclosure of InterestsNone declared
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Hoshino M, Sasaki R, Tsuchihashi Y, Otsuka Y, Sakurai K, Yamano Y. A case of autoimmune encephalitis with involuntary movements as the first symptom and suspected association with mumps virus infection. Rinsho Shinkeigaku 2022; 62:140-144. [PMID: 35095050 DOI: 10.5692/clinicalneurol.cn-001669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
This case involved a 72-year-old woman. From the day after mitral annuloplasty, a fever over 37°C and ballismus-like involuntary movements of the right upper and lower limbs appeared. A few month later, involuntary movements spread throughout the body, and she developed impairment of consciousness and difficulty speaking and eating. Levels of protein in cerebrospinal fluid were high. Positive results were seen for serum mumps immunoglobulin G and M antibody. Because steroid pulse therapy proved effective, we suspected autoimmune encephalitis associated with mumps virus infection.
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Affiliation(s)
- Masashi Hoshino
- Division of Neurology, Machida Municipal Hospital.,Department of Internal Medicine, Division of Neurology, St. Marianna University School of Medicine
| | - Rie Sasaki
- Division of Neurology, Machida Municipal Hospital.,Department of Internal Medicine, Division of Neurology, St. Marianna University School of Medicine
| | - Yoko Tsuchihashi
- Division of Neurology, Machida Municipal Hospital.,Department of Internal Medicine, Division of Neurology, St. Marianna University School of Medicine
| | - Yoshinobu Otsuka
- Division of Neurology, Machida Municipal Hospital.,Department of Internal Medicine, Division of Neurology, St. Marianna University School of Medicine
| | - Kenzo Sakurai
- Department of Internal Medicine, Division of Neurology, St. Marianna University School of Medicine
| | - Yoshihisa Yamano
- Department of Internal Medicine, Division of Neurology, St. Marianna University School of Medicine
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Konno A, Osada Y, Watanabe K, Sakurai K, Aso K. A case of coronavirus disease 2019 vaccine-related myocarditis with late gadolinium enhancement on cardiac magnetic resonance imaging persisting over acute phase. Pediatr Int 2022; 64:e15291. [PMID: 36074060 PMCID: PMC9539345 DOI: 10.1111/ped.15291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 06/05/2022] [Accepted: 06/25/2022] [Indexed: 01/05/2023]
Affiliation(s)
- Ai Konno
- Department of Pediatrics, St. Marianna University, Kawasaki, Japan
| | - Yosuke Osada
- Department of Pediatrics, St. Marianna University, Kawasaki, Japan
| | - Kodai Watanabe
- Department of Pediatrics, St. Marianna University, Kawasaki, Japan
| | - Kenzo Sakurai
- Department of Pediatrics, St. Marianna University, Kawasaki, Japan
| | - Kentaro Aso
- Department of Pediatrics, St. Marianna University, Kawasaki, Japan
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Suzuki Y, Sakurai K, Uchino K, Inoue T, Takahashi T, Hasegawa Y, Yamano Y. [A case of meningoencephalitis that developed during nivolumab use]. Nihon Ronen Igakkai Zasshi 2021; 58:624-629. [PMID: 34880182 DOI: 10.3143/geriatrics.58.624] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A 72-year-old woman developed a fever and consciousness disturbance after completing 8 courses of nivolumab for lung adenocarcinoma. A cerebrospinal fluid test showed an increased cell count, but bacterial culture, herpes simplex virus-polymerase chain reaction, acid-fast staining, and cytology were negative; serum paraneoplastic syndrome-related antibody was also negative. Serum and cerebrospinal fluid specimens were positive for anti-glutamate receptor (GluR) antibody, and fluid-attenuated inversion recovery images on head magnetic resonance imaging showed a high signal intensity at the right parietal lobe. The condition was determined to be immune-mediated encephalitis, and pulse steroid therapy was performed. The symptoms promptly improved after treatment. The patient in the present case was anti-GluR antibody-positive but was determined to have nivolumab-related encephalitis based on the clinical course. The use of immune checkpoint inhibitors has become widespread in recent years, although it can occasionally lead to encephalitis. We herein report our experience with immune checkpoint inhibitor-related encephalitis, which is seldom reported in Japan.
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Affiliation(s)
- Yu Suzuki
- Division of Neurology, Department of Internal Medicine, St Marianna University School of Medicine.,Department of Neurology, Shinyurigaoka General Hospital
| | - Kenzo Sakurai
- Division of Neurology, Department of Internal Medicine, St Marianna University School of Medicine
| | - Kenji Uchino
- Division of Neurology, Department of Internal Medicine, St Marianna University School of Medicine.,Division of Neurology, Department of Internal Medicine, Kawasaki Municipal Tama Hospital
| | - Takeo Inoue
- Division of Respiratory Medicine, Department of Internal Medicine, St Marianna University School of Medicine
| | - Toshiyuki Takahashi
- National Epilepsy Center, NHO Shizuoka Institute of Epilepsy and Neurological Disorders
| | - Yasuhiro Hasegawa
- Division of Neurology, Department of Internal Medicine, St Marianna University School of Medicine.,Department of Neurology, Shinyurigaoka General Hospital
| | - Yoshihisa Yamano
- Division of Neurology, Department of Internal Medicine, St Marianna University School of Medicine
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7
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Sakurai K, Nakamori K, Yamazaki M, Tanuma JI. Response to Letter to the Editor "Ectomesenchymal chondromyxoid tumour on the lateral border of the tongue: some historical and clinical considerations". Int J Oral Maxillofac Surg 2021; 50:1401. [PMID: 33653650 DOI: 10.1016/j.ijom.2020.11.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Accepted: 11/20/2020] [Indexed: 10/22/2022]
Affiliation(s)
- K Sakurai
- Department of Oral and Maxillofacial Surgery, Faculty of Medicine, University of Toyama, Toyama City, Toyama, Japan.
| | - K Nakamori
- Department of Oral and Maxillofacial Surgery, Regional Independent Administrative Corporation Naha City Hospital, Naha City, Okinawa, Japan
| | - M Yamazaki
- Division of Oral Pathology, Faculty of Dentistry and Graduate School of Medical and Dental Science, Niigata University, Niigata City, Niigata, Japan
| | - J-I Tanuma
- Division of Oral Pathology, Faculty of Dentistry and Graduate School of Medical and Dental Science, Niigata University, Niigata City, Niigata, Japan
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Abstract
A 47-year-old man who was previously hospitalized three times due to bacterial meningitis experienced a headache and posterior neck pain in May. He was admitted to our hospital because of a fever 3 h later. He was fully conscious and febrile, with a headache and signs of meningeal irritation. A cerebrospinal fluid examination showed an increased number of cells with polynuclear cell predominance and decreased glucose levels, leading to the diagnosis of bacterial meningitis. Steroid and antibiotic treatment was initiated, at which time, large amounts of nasal discharge were observed. Cisternal scintigraphy was performed, and cerebrospinal fluid was detected in the nasal discharge. The cause was idiopathic, and endoscopic repair was performed. The nasal fluid leakage was suggested to be the cause of the recurrent bacterial meningitis in this case.
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Affiliation(s)
- Naoki Takao
- Division of Neurology, Department of Internal Medicine, St. Marianna University School of Medicine
| | - Kenzo Sakurai
- Division of Neurology, Department of Internal Medicine, St. Marianna University School of Medicine
| | - Sakae Hino
- Division of Neurology, Department of Internal Medicine, St. Marianna University School of Medicine
| | - Yoshihisa Yamano
- Division of Neurology, Department of Internal Medicine, St. Marianna University School of Medicine
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Abstract
This case concerned a 39-year-old woman diagnosed with uterine fibroids. Upon initiation of gonadotropin-releasing hormone (GnRH) agonist therapy, she experienced various neurological deficits but did not seek medical attention because of gradual spontaneous symptom improvement. Upon completing four courses of GnRH agonist therapy, she began experiencing severe neurological symptoms and was diagnosed with multiple sclerosis (MS). Although her symptoms improved with steroid pulse therapy, serious sequelae remained. GnRH agonist therapy can exacerbate the disease activity of MS; therefore, awareness of the potential emergence of neurological symptoms during GnRH agonist therapy is important.
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Affiliation(s)
- Kenzo Sakurai
- Department of Neurology, Kawasaki Municipal Tama Hospital, Japan
| | | | - Takeshi Imai
- Department of Neurology, Kawasaki Municipal Tama Hospital, Japan
| | - Yoshihisa Yamano
- Department of Neurology, St. Marianna University School of Medicine, Japan
| | - Yasuhiro Hasegawa
- Department of Neurology, St. Marianna University School of Medicine, Japan
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10
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Imai T, Shibata S, Shinohara K, Sakurai K, Horiuchi M, Sakai K, Asai S, Hasegawa Y. IgG4-related hypophysitis diagnosed by retroperitoneal mass biopsy in a patient presenting with abducens nerve palsy: A case report (CARE-compliant article). Medicine (Baltimore) 2020; 99:e22484. [PMID: 33019443 PMCID: PMC7535663 DOI: 10.1097/md.0000000000022484] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
RATIONALE Immunoglobulin G4 (IgG4)-related hypophysitis is a rare disorder which often requires invasive pituitary gland biopsy to confirm its diagnosis. We present a case whereby peripheral organ lesion biopsy and imaging findings were sufficient for the diagnosis. PATIENT CONCERNS A 77-year-old man with diplopia was referred to our department by an opthomologist who had diagnosed the patient with right abducens nerve palsy. DIAGNOSES Head magnetic resonance imaging revealed enlargement of the pituitary gland and pituitary stalk, while hormonal analysis revealed panhypopituitarism, thereby indicating a diagnosis of hypophysitis. Abdominal computed tomography imaging revealed a solid mass that encompassed the left kidney ureter. Although the patient did not have an increase in serum IgG4, a biopsy of the periureteral mass revealed infiltrating plasma cells that were positive when stained for IgG4. INTERVENTIONS The patient was given corticosteroid pulse therapy (methylprednisolone: 1 g × 3 days), followed by oral corticosteroids (prednisolone, 0.5 mg/kg/d). OUTCOMES The right abducens nerve palsy improved and the pituitary lesion shrank after the initiation of corticosteroid treatment. CONCLUSION Based on the diagnosis of IgG4-related disease in the retroperitoneal organ and response to corticosteroid treatment, this patient was diagnosed with IgG4-related hypophysitis. This hypophysitis caused enlargement of the pituitary gland with resulting nerve compression, causing abducens nerve palsy. When IgG4-related hypophysitis is suspected, a thorough examination of other organ lesions and biopsy should be considered.
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Affiliation(s)
- Takeshi Imai
- Department of Neurology
- Tama Medical Practice Center
| | | | | | | | | | - Kensuke Sakai
- Department of Metabolism and Endocrinology, Kawasaki Municipal Tama Hospital, Kawasaki, Kanagawa, Japan
| | - Shiko Asai
- Department of Metabolism and Endocrinology, Kawasaki Municipal Tama Hospital, Kawasaki, Kanagawa, Japan
| | - Yasuhiro Hasegawa
- Department of Internal Medicine, Division of Neurology, St Marianna University School of Medicine, Kawasaki, Kanagawa, Japan
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11
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Mizuno M, Masumori C, Sakurai K, Nakano M, Aso K. Anti-Ro/SSA antibody-related atrioventricular block-induced torsade de pointes. Pediatr Int 2020; 62:1101-1103. [PMID: 32744378 DOI: 10.1111/ped.14232] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 03/09/2020] [Accepted: 03/12/2020] [Indexed: 11/29/2022]
Affiliation(s)
- Masanori Mizuno
- Department of Pediatrics, St Marianna University School of Medicine, Kawasaki, Japan
| | - Chikako Masumori
- Department of Pediatrics, St Marianna University School of Medicine, Kawasaki, Japan
| | - Kenzo Sakurai
- Department of Pediatrics, St Marianna University School of Medicine, Kawasaki, Japan
| | - Marie Nakano
- Department of Pediatrics, St Marianna University School of Medicine, Kawasaki, Japan
| | - Kentaro Aso
- Department of Pediatrics, St Marianna University School of Medicine, Kawasaki, Japan
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12
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Felea D, Mamuzic J, Masełek R, Mavromatos NE, Mitsou VA, Pinfold JL, de Austri RR, Sakurai K, Santra A, Vives O. Prospects for discovering supersymmetric long-lived particles with MoEDAL. Eur Phys J C Part Fields 2020; 80:431. [PMID: 32440256 PMCID: PMC7231802 DOI: 10.1140/epjc/s10052-020-7994-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 04/30/2020] [Indexed: 06/11/2023]
Abstract
We present a study on the possibility of searching for long-lived supersymmetric partners with the MoEDAL experiment at the LHC. MoEDAL is sensitive to highly ionising objects such as magnetic monopoles or massive (meta)stable electrically charged particles. We focus on prospects of directly detecting long-lived sleptons in a phenomenologically realistic model which involves an intermediate neutral long-lived particle in the decay chain. This scenario is not yet excluded by the current data from ATLAS or CMS, and is compatible with astrophysical constraints. Using Monte Carlo simulation, we compare the sensitivities of MoEDAL versus ATLAS in scenarios where MoEDAL could provide discovery reach complementary to ATLAS and CMS, thanks to looser selection criteria combined with the virtual absence of background. It is also interesting to point out that, in such scenarios, in which charged staus are the main long-lived candidates, the relevant mass range for MoEDAL is compatible with a potential role of Supersymmetry in providing an explanation for the anomalous events observed by the ANITA detector.
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Affiliation(s)
- D. Felea
- Institute of Space Science, P.O. Box MG 23, 077125 Bucharest, Măgurele Romania
| | - J. Mamuzic
- Instituto de Física Corpuscular (IFIC), CSIC-Universitat de València, C/Catedrático José Beltrán 2, 46980 Paterna, Valencia Spain
| | - R. Masełek
- Institute of Theoretical Physics, Faculty of Physics, University of Warsaw, ul. Pasteura 5, 02093 Warsaw, Poland
| | - N. E. Mavromatos
- Theoretical Particle Physics and Cosmology Group, Department of Physics, King’s College London, Strand, London, WC2R 2LS UK
| | - V. A. Mitsou
- Instituto de Física Corpuscular (IFIC), CSIC-Universitat de València, C/Catedrático José Beltrán 2, 46980 Paterna, Valencia Spain
| | - J. L. Pinfold
- Physics Department, University of Alberta, Edmonton, AB T6G 2E4 Canada
| | - R. Ruiz de Austri
- Instituto de Física Corpuscular (IFIC), CSIC-Universitat de València, C/Catedrático José Beltrán 2, 46980 Paterna, Valencia Spain
| | - K. Sakurai
- Institute of Theoretical Physics, Faculty of Physics, University of Warsaw, ul. Pasteura 5, 02093 Warsaw, Poland
| | - A. Santra
- Instituto de Física Corpuscular (IFIC), CSIC-Universitat de València, C/Catedrático José Beltrán 2, 46980 Paterna, Valencia Spain
| | - O. Vives
- Instituto de Física Corpuscular (IFIC), CSIC-Universitat de València, C/Catedrático José Beltrán 2, 46980 Paterna, Valencia Spain
- Departament de Física Teòrica, Universitat de València, C/ Dr. Moliner 50, 46100 Burjassot, Valencia Spain
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Sakurai K, Nakamori K, Yamazaki M, Tanuma JI. An ectomesenchymal chondromyxoid tumour on the lateral border of the tongue. Int J Oral Maxillofac Surg 2020; 49:1290-1293. [PMID: 32371177 DOI: 10.1016/j.ijom.2020.04.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 02/20/2020] [Revised: 03/04/2020] [Accepted: 04/16/2020] [Indexed: 11/25/2022]
Abstract
Ectomesenchymal chondromyxoid tumour (ECT) is an extremely rare intraoral mesenchymal tumour. Most of these tumours have been identified on the anterior aspect of the dorsal surface of the tongue. ECT is difficult to diagnose because of its rarity. We report a case of ECT arising on the lateral border of the tongue in a 67-year-old woman. The tumour, measuring 20 × 10 mm in size, was surgically removed. Histopathologically, the tumour was composed of small polygonal cells arranged in sheets, with a myxoid or hyalinized stroma. The tumour boundary was clear; however, the tumour showed a multinodular structure expanding along the tongue surface without obvious capsule. Careful examination revealed the tumour nodule to be spreading in a skip lesion-like fashion away from the main part of the tumour in the striated muscle layer. Although there was no evidence of recurrence at 18 months after the surgery, our observations suggest that surgery for ECT resection with a safety margin is more appropriate than enucleation.
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Affiliation(s)
- K Sakurai
- Department of Oral and Maxillofacial Surgery, Regional Independent Administrative Corporation Naha City Hospital, Naha, Okinawa, Japan.
| | - K Nakamori
- Department of Oral and Maxillofacial Surgery, Regional Independent Administrative Corporation Naha City Hospital, Naha, Okinawa, Japan
| | - M Yamazaki
- Division of Oral Pathology, Faculty of Dentistry and Graduate School of Medical and Dental science, Niigata University, Niigata, Japan
| | - J-I Tanuma
- Division of Oral Pathology, Faculty of Dentistry and Graduate School of Medical and Dental science, Niigata University, Niigata, Japan
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Sakurai K, Onouchi T, Yamada S, Baba Y, Murata T, Tsukamoto T, Kuroda M, Urano M. Cytohistology of morule in cribriform-morular variant of papillary thyroid carcinoma. Malays J Pathol 2019; 41:339-343. [PMID: 31901919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
INTRODUCTION Cribriform-morular variant (CMV) is a rare variant of papillary thyroid carcinoma. It frequently occurs in association with familial adenomatous polyposis (FAP), although some cases are sporadic. Herein, we report a case of CMV and analyse morule cytohistology. CASE REPORT The patient was a 47-year-old woman with no familial history of FAP. A 3.0-cm unifocal mass was identified in the left thyroidal lobe. Fine-needle aspiration cytology revealed papillary clusters of atypical cells with nuclear grooves, which was suspected to be conventional papillary thyroid carcinoma. Histologically, the tumour comprised a papillary and cribriform growth of atypical cells with cytoplasmic accumulation and nuclear translocation of b-catenin. In addition, frequent morule formation was identified. DISCUSSION In this case, we performed morule analysis through correlative light and electron microscopy (CLEM), and revealed its ultrastructure. Although CMV is a rare form of thyroid carcinoma, it should be considered along with its distinct clinicopathological characteristics.
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Affiliation(s)
- K Sakurai
- Fujita Health University School of Medicine, Department of Diagnostic Pathology, Toyoake, Aichi, Japan, 470-1192.
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Hada Y, Iwamiya S, Hijikata S, Yoshitake T, Sato H, Konishi Y, Sakurai K, Azegami K, Hirao K. 5965Perimatrial inflammation measured by fluoine-18-fluorodeoxyglucose-positron emission tomography/computed tomography to predict new-onset atrial fibrillation. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Fluoine-18-fluorodeoxyglucose-positron emission tomography/computed tomography (FDG-PET/CT) is a useful modality of inflammatory disease. Epicardial adipose tissue (EAT) contains abundant ganglionated plexi, therefore EAT inflammation may cause atrial arrhythmia, such as atrial premature contraction (APC) and atrial fibrillation (AF). Previous studies have shown that inflammatory activity of EAT has relation to the presence of AF. However, it is unknown whether EAT inflammation contributes to the occurrence of AF.
Methods
Out of 20720 examinees who underwent FDG-PET/CT for screening of cancer in the years 2012–2018, 151 (aged 65.6±12.0 years old, 62 females) had ambulatory electrocardiographic monitoring (Holter ECG) within a year and non-detection of AF. Standardized uptake value (SUV) was measured in fat adjacent to roof of left atrium (ROOF), atrioventricular groove (AV), left main coronary artery (LMT), and right ventricular blood pool (RV). In order to correct for blood pool activity, SUV of ROOF, AV, and LMT were divided by SUV of RV respectively, yielding target-to-background ratio (TBR). As regards to arterial inflammation, measurements were performed with SUV in ascending aorta (A-Ao) and in superior vena cava (SVC) as blood pool. In the same way, SUV of A-Ao was divided by SUV of SVC, yielding TBR.
Results
According to Holter ECG, APC≥100 beats per day was seen in 60 patients (Group A), but not in the other 91 (Group B). In Group A, TBR of ROOF, AV, and LMT were all significantly higher than Group B (p<0.001, p=0.004, and p=0.008, respectively). During a median follow-up of 179 days, new-onset AF was diagnosed in 7 patients (4 in Group A (6.7%), 3 in Group B (3.3%), p=0.046). There was significant difference in TBR of ROOF between patients with and without new-onset AF (p<0.001), but not in TBR of AV and LMT. In addition, no significant difference was observed in TBR of A-Ao between these two groups. In the Cox proportional hazard analysis, TBR of ROOF was found to be an independent predictor of new-onset AF (odds ratio 40.1, 95% confidence interval 6.05 to 265.9, p<0.001).
Conclusions
Although EAT inflammation evaluated by SUV is related to frequent APCs, only in fat adjacent to roof of left atrium is associated with and predicts future occurrence of AF. Arterial inflammation measured by SUV has no relation to atrial arrhythmia.
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Affiliation(s)
- Y Hada
- Shin-yurigaoka General Hospital, Cardiovascular Medicine, Kanagawa, Japan
| | - S Iwamiya
- Shin-yurigaoka General Hospital, Cardiovascular Medicine, Kanagawa, Japan
| | - S Hijikata
- Shin-yurigaoka General Hospital, Cardiovascular Medicine, Kanagawa, Japan
| | - T Yoshitake
- Shin-yurigaoka General Hospital, Cardiovascular Medicine, Kanagawa, Japan
| | - H Sato
- Shin-yurigaoka General Hospital, Cardiovascular Medicine, Kanagawa, Japan
| | - Y Konishi
- Shin-yurigaoka General Hospital, Cardiovascular Medicine, Kanagawa, Japan
| | - K Sakurai
- Shin-yurigaoka General Hospital, Cardiovascular Medicine, Kanagawa, Japan
| | - K Azegami
- Shin-yurigaoka General Hospital, Cardiovascular Medicine, Kanagawa, Japan
| | - K Hirao
- Tokyo Medical and Dental University, cardiovascular medicine, Tokyo, Japan
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16
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Takahashi K, Sakurai K, Takefuta K, Nakayashiro M. Oral kyuki-kyogai-to (KKT) for intestinal bleeding in Fontan-associated protein-losing enteropathy. Pediatr Int 2019; 61:935-937. [PMID: 31569288 DOI: 10.1111/ped.13950] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 05/15/2019] [Accepted: 06/04/2019] [Indexed: 11/30/2022]
Affiliation(s)
- Kazuhiro Takahashi
- Department of Pediatric Cardiology, Okinawa Nanbu and Children's Medical Center, Okinawa, Japan
| | - Kenzo Sakurai
- Department of Pediatric Cardiology, Okinawa Nanbu and Children's Medical Center, Okinawa, Japan
| | - Kiyotaka Takefuta
- Department of Pediatric Cardiology, Okinawa Nanbu and Children's Medical Center, Okinawa, Japan
| | - Mami Nakayashiro
- Department of Pediatric Cardiology, Okinawa Nanbu and Children's Medical Center, Okinawa, Japan
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17
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Sakurai K, Fujiwara N, Takahashi K, Nakayashiro M. Excessive soft drink may induce pulmonary hypertension via thiamine deficiency. Pediatr Int 2019; 61:823-824. [PMID: 31373121 DOI: 10.1111/ped.13913] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 02/23/2019] [Accepted: 04/04/2019] [Indexed: 11/28/2022]
Affiliation(s)
- Kenzo Sakurai
- Department of Pediatric Cardiology, Okinawa Children's Medical Center, Okinawa, Japan
| | - Naoki Fujiwara
- Department of Pediatric Cardiology, Okinawa Children's Medical Center, Okinawa, Japan
| | - Kazuhiro Takahashi
- Department of Pediatric Cardiology, Okinawa Children's Medical Center, Okinawa, Japan
| | - Mami Nakayashiro
- Department of Pediatric Cardiology, Okinawa Children's Medical Center, Okinawa, Japan
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18
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Imai T, Shibata S, Shinohara K, Sakurai K, Horiuchi M, Hasegawa Y. [Longitudinally extensive transverse myelitis involving fifteen vertebral bodies positive for anti-myelin oligodendrocyte glycoprotein (MOG) antibody: a case report]. Rinsho Shinkeigaku 2019; 59:375-378. [PMID: 31142714 DOI: 10.5692/clinicalneurol.cn-001290] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
A 16-year-old male with no previous medical history developed sudden fever and urinary dysfunction. He was admitted to our hospital due to bilateral leg weakness and sensory disturbance on the third day of weakness onset. A sagittal T2-weighted image displayed a longitudinal extensive lesion of transverse myelitis in the spinal column from the upper cervical (C2) to the thoracic region (Th9). The patient was diagnosed with autoimmune myelitis and treated with four courses of intravenous methylprednisolone (1 g/day for three consecutive days per week). This improved his signs, and his serum sample tested negative for anti-aquaporin-4 (AQP-4) antibody but positive for anti-myelin oligodendrocyte glycoprotein (MOG) antibody in cell-based assays. We report this case of longitudinally extensive transverse myelitis involving fifteen vertebral bodies positive for anti-MOG antibody.
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Affiliation(s)
- Takeshi Imai
- Department of Neurology, Kawasaki Municipal Tama Hospital
| | | | | | - Kenzo Sakurai
- Department of Neurology, Kawasaki Municipal Tama Hospital
| | | | - Yasuhiro Hasegawa
- Department of Internal Medicine, Division of Neurology, St Marianna University School of Medicine
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19
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Sakurai K, Osada Y, Takeba Y, Mizuno M, Tsuzuki Y, Ohta Y, Ootaki M, Iri T, Aso K, Yamamoto H, Matsumoto N. Exposure of immature rat heart to antenatal glucocorticoid results in cardiac proliferation. Pediatr Int 2019; 61:31-42. [PMID: 30387893 DOI: 10.1111/ped.13725] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 09/12/2018] [Accepted: 10/31/2018] [Indexed: 12/21/2022]
Abstract
BACKGROUND ATP synthesis and cardiac contraction-related protein production are accelerated in the immature fetal heart by antenatal glucocorticoids (GC). This study investigated the structural maturity of the myocardium and underlying signal pathway associated with cardiac growth in fetal rats that received antenatal GC. METHODS AND RESULTS Dexamethasone (DEX) was given to pregnant rats for 2 days from day 17 or day 19 of gestation, and the hearts of 19 and 21 day fetuses and 1-day-old neonates were analyzed. Although irregular myofibril orientation was observed morphologically in 19 day fetal hearts, the myofibril components were organized in fetuses after DEX. The cross-sectional area of the myocardium and Ki-67-positive cells were significantly increased in fetal DEX groups, suggesting that cardiac enlargement resulted from myocyte proliferation. Glycogen synthase kinase-3β (GSK-3β) protein was significantly decreased in fetal DEX groups. β-Catenin and vascular endothelial growth factor protein were also significantly increased. Furthermore, increased cardiomyocyte proliferation appeared to be mediated by GC receptors after culture with DEX in vitro. CONCLUSIONS Antenatal DEX induces structural maturity accompanying cardiomyocyte proliferation in the premature fetal rat heart, and GSK-3β and β-catenin are thought to contribute to cardiac growth.
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Affiliation(s)
- Kenzo Sakurai
- Department of Pediatrics, St Marianna University School of Medicine, Kawasaki, Japan
| | - Yosuke Osada
- Department of Pediatrics, St Marianna University School of Medicine, Kawasaki, Japan
| | - Yuko Takeba
- Department of Pharmacology, St Marianna University School of Medicine, Kawasaki, Japan
| | - Masanori Mizuno
- Department of Pediatrics, St Marianna University School of Medicine, Kawasaki, Japan
| | - Yoshimitsu Tsuzuki
- Department of Pediatrics, St Marianna University School of Medicine, Kawasaki, Japan
| | - Yuki Ohta
- Department of Pharmacology, St Marianna University School of Medicine, Kawasaki, Japan
| | - Masanori Ootaki
- Department of Pharmacology, St Marianna University School of Medicine, Kawasaki, Japan
| | - Taro Iri
- Department of Pharmacology, St Marianna University School of Medicine, Kawasaki, Japan
| | - Kentaro Aso
- Department of Pediatrics, St Marianna University School of Medicine, Kawasaki, Japan
| | - Hitoshi Yamamoto
- Department of Pediatrics, St Marianna University School of Medicine, Kawasaki, Japan
| | - Naoki Matsumoto
- Department of Pharmacology, St Marianna University School of Medicine, Kawasaki, Japan
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20
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Affiliation(s)
- Tomoyasu Matsubara
- Department of Clinical Neuroscience and Therapeutics, Hiroshima University Graduate School of Biomedical and Health Sciences, Hiroshima, Japan
| | - K Kurokawa
- Department of Neurology, Hiroshima City Hiroshima Citizens Hospital, 7-33 Motomachi, Naka-ku, Hiroshima-shi, Hiroshima, Japan
| | - K Sakurai
- Department of Radiology, Teikyo University School of Medicine, Tokyo, Japan
| | - H Yasutomi
- Department of Diagnostic Radiology, Hiroshima University Hospital, Hiroshima, Japan
| | - T Yamawaki
- Department of Neurology, Hiroshima City Hiroshima Citizens Hospital, 7-33 Motomachi, Naka-ku, Hiroshima-shi, Hiroshima, Japan
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21
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Harada K, Kobayashi Y, Nozawa S, Sakurai K, Suto K, Yoshikawa A, Sasaki R, Abiko R, Ebata H, Sano I, Oda H, Miyagishima T. Retrospective analysis of efficacy and safety of cell-free and concentrated ascites reinfusion therapy in pancreatic cancer patients with malignant ascites. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy440.004] [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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22
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Sakurai K, Takahashi K, Nakayashiro M. Combined flecainide and sotalol therapy for multifocal atrial tachycardia in cardio-facio-cutaneous syndrome. Pediatr Int 2018; 60:1036-1037. [PMID: 30536490 DOI: 10.1111/ped.13695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 04/14/2018] [Accepted: 07/11/2018] [Indexed: 11/28/2022]
Affiliation(s)
- Kenzo Sakurai
- Department of Pediatric Cardiology, Okinawa Children's Medical Center, Okinawa, Japan
| | - Kazuhiro Takahashi
- Department of Pediatric Cardiology, Okinawa Children's Medical Center, Okinawa, Japan
| | - Mami Nakayashiro
- Department of Pediatric Cardiology, Okinawa Children's Medical Center, Okinawa, Japan
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23
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Tominaga K, Sakata Y, Kusunoki H, Odaka T, Sakurai K, Kawamura O, Nagahara A, Takeuchi T, Fujikawa Y, Oshima T, Kato M, Furuta T, Murakami K, Chiba T, Miwa H, Kinoshita Y, Higuchi K, Kusano M, Iwakiri R, Fujimoto K, Tack JF, Arakawa T. Rikkunshito simultaneously improves dyspepsia correlated with anxiety in patients with functional dyspepsia: A randomized clinical trial (the DREAM study). Neurogastroenterol Motil 2018; 30:e13319. [PMID: 29498457 DOI: 10.1111/nmo.13319] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 01/26/2018] [Indexed: 02/05/2023]
Abstract
BACKGROUND Functional dyspepsia (FD), a heterogeneous disorder, involves multiple pathogenetic mechanisms. Developing treatments for FD has been challenging. We performed a randomized, placebo-controlled, double-blind clinical trial to determine the efficacy of rikkunshito, a Japanese herbal medicine, in FD patients. METHODS FD patients (n = 192) who met the Rome III criteria without Helicobacter pylori infection, predominant heartburn, and depression were enrolled at 56 hospitals in Japan. After 2 weeks of single-blind placebo treatment, 128 patients with continuous symptoms were randomly assigned to 8 weeks of rikkunshito (n = 64) or placebo (n = 61). The primary efficacy endpoint was global assessment of overall treatment efficacy (OTE). The secondary efficacy endpoints were improvements in upper gastrointestinal symptoms evaluated by the Patient Assessment of Upper Gastrointestinal Disorders-Symptom Severity Index (PAGI-SYM), the Global Overall Symptom scale (GOS), and the modified Frequency Scale for the Symptoms of Gastroesophageal Reflux Disease (m-FSSG), and psychological symptoms evaluated by the Hospital Anxiety and Depression Scale (HADS). KEY RESULTS Rikkunshito increased OTE compared to placebo at 8 weeks (P = .019). Rikkunshito improved upper gastrointestinal symptoms (PAGI-SYM, GOS, and m-FSSG) at 8 weeks, especially postprandial fullness/early satiety (P = .015 and P = .001) and bloating (P = .007 and P = .002) of the PAGI-SYM subscales at 4 weeks and 8 weeks. Improvement of HADS at 8 weeks (P = .027) correlated with those of PAGI-SYM (r = .302, P = .001), GOS (r = .186, P = .044), and m-FSSG (r = .462, P < .001), postprandial fullness/early satiety (r = .226, P = .014), dyspepsia (r = .215, P = .019), and PDS (r = .221, P = .016). CONCLUSION & INFERENCES Rikkunshito may be beneficial for FD patients to simultaneously treat gastrointestinal and psychological symptoms.
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Affiliation(s)
- K Tominaga
- Premier Developmental Research of Medicine, Osaka Medical College, Osaka, Japan
- Second Department of Internal Medicine, Osaka Medical College, Osaka, Japan
| | - Y Sakata
- Department of Internal Medicine, Saga Medical School, Saga, Japan
| | - H Kusunoki
- Department of General Medicine, Kawasaki Medical School, Kurashiki-city, Okayama, Japan
| | - T Odaka
- Odaka Medical and Gastrointestinal Clinic, Chiba, Japan
| | | | - O Kawamura
- Department of Endoscopy and Endoscopic Surgery, Gunma University Hospital, Maebashi, Gunma, Japan
| | - A Nagahara
- Department of Gastroenterology, Juntendo University Shizuoka Hospital, Shizuoka, Japan
| | - T Takeuchi
- Premier Developmental Research of Medicine, Osaka Medical College, Osaka, Japan
| | - Y Fujikawa
- Premier Developmental Research of Medicine, Osaka Medical College, Osaka, Japan
- Second Department of Internal Medicine, Osaka Medical College, Osaka, Japan
| | - T Oshima
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
| | - M Kato
- National Hospital Organization Hakodate Hospital, Hakodate, Japan
| | - T Furuta
- Center for Clinical Research, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - K Murakami
- Department of Gastroenterology, Oita University Faculty of Medicine, Oita, Japan
| | - T Chiba
- Division of Gastroenterology, Department of Internal Medicine, Iwate Medical University, Iwate, Japan
| | - H Miwa
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Hyogo, Japan
| | - Y Kinoshita
- Department of Gastroenterology and Hepatology, Shimane University School of Medicine, Izumo, Japan
| | - K Higuchi
- Second Department of Internal Medicine, Osaka Medical College, Osaka, Japan
| | - M Kusano
- Department of Endoscopy and Endoscopic Surgery, Gunma University Hospital, Maebashi, Gunma, Japan
| | - R Iwakiri
- Department of Internal Medicine, Saga Medical School, Saga, Japan
| | - K Fujimoto
- Department of Internal Medicine, Saga Medical School, Saga, Japan
| | - J F Tack
- University Hospitals Leuven, Leuven, Belgium
| | - T Arakawa
- Department of Gastroenterology, Osaka City University Graduate School of Medicine, Osaka, Japan
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24
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Hiraizumi M, Komatsu R, Shibata T, Ohta Y, Sakurai K. Dissecting the structural basis for the intracellular delivery of OSW-1 by fluorescent probes. Org Biomol Chem 2018; 15:3568-3570. [PMID: 28345721 DOI: 10.1039/c7ob00486a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [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
The structural basis for the intracellular delivery of OSW-1 is investigated using fluorescent derivatives of OSW-1 and its closely related congeners. Despite the large differences in activity, all the fluorescent probes are found to translocate across the plasma membrane to the ER and Golgi apparatus. This observation suggests that the glycosylated cholestane moiety plays an important role in the cell internalization and intracellular localization property of OSW-1.
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Affiliation(s)
- M Hiraizumi
- Tokyo University of Agriculture and Technology, Department of Biotechnology and Life Science, Koganei-shi, Tokyo 184-8588, Japan.
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25
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Bagnaschi E, Sakurai K, Borsato M, Buchmueller O, Citron M, Costa JC, De Roeck A, Dolan MJ, Ellis JR, Flächer H, Heinemeyer S, Lucio M, Martínez Santos D, Olive KA, Richards A, Spanos VC, Suárez Fernández I, Weiglein G. Likelihood analysis of the pMSSM11 in light of LHC 13-TeV data. Eur Phys J C Part Fields 2018; 78:256. [PMID: 31258409 PMCID: PMC6560709 DOI: 10.1140/epjc/s10052-018-5697-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Accepted: 03/03/2018] [Indexed: 06/09/2023]
Abstract
We use MasterCode to perform a frequentist analysis of the constraints on a phenomenological MSSM model with 11 parameters, the pMSSM11, including constraints from ∼ 36 /fb of LHC data at 13 TeV and PICO, XENON1T and PandaX-II searches for dark matter scattering, as well as previous accelerator and astrophysical measurements, presenting fits both with and without the ( g - 2 ) μ constraint. The pMSSM11 is specified by the following parameters: 3 gaugino masses M 1 , 2 , 3 , a common mass for the first-and second-generation squarks m q ~ and a distinct third-generation squark mass m q ~ 3 , a common mass for the first-and second-generation sleptons m ℓ ~ and a distinct third-generation slepton mass m τ ~ , a common trilinear mixing parameter A, the Higgs mixing parameter μ , the pseudoscalar Higgs mass M A and tan β . In the fit including ( g - 2 ) μ , a Bino-like χ ~ 1 0 is preferred, whereas a Higgsino-like χ ~ 1 0 is mildly favoured when the ( g - 2 ) μ constraint is dropped. We identify the mechanisms that operate in different regions of the pMSSM11 parameter space to bring the relic density of the lightest neutralino, χ ~ 1 0 , into the range indicated by cosmological data. In the fit including ( g - 2 ) μ , coannihilations with χ ~ 2 0 and the Wino-like χ ~ 1 ± or with nearly-degenerate first- and second-generation sleptons are active, whereas coannihilations with the χ ~ 2 0 and the Higgsino-like χ ~ 1 ± or with first- and second-generation squarks may be important when the ( g - 2 ) μ constraint is dropped. In the two cases, we present χ 2 functions in two-dimensional mass planes as well as their one-dimensional profile projections and best-fit spectra. Prospects remain for discovering strongly-interacting sparticles at the LHC, in both the scenarios with and without the ( g - 2 ) μ constraint, as well as for discovering electroweakly-interacting sparticles at a future linear e + e - collider such as the ILC or CLIC.
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Affiliation(s)
| | - K. Sakurai
- Faculty of Physics, Institute of Theoretical Physics, University of Warsaw, ul. Pasteura 5, 02-093 Warsaw, Poland
| | - M. Borsato
- Instituto Galego de Física de Altas Enerxías, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - O. Buchmueller
- High Energy Physics Group, Blackett Laboratory, Imperial College, Prince Consort Road, London, SW7 2AZ UK
| | - M. Citron
- High Energy Physics Group, Blackett Laboratory, Imperial College, Prince Consort Road, London, SW7 2AZ UK
| | - J. C. Costa
- High Energy Physics Group, Blackett Laboratory, Imperial College, Prince Consort Road, London, SW7 2AZ UK
| | - A. De Roeck
- Experimental Physics Department, CERN, 1211 Geneva 23, Switzerland
- Antwerp University, 2610 Wilrijk, Belgium
| | - M. J. Dolan
- ARC Centre of Excellence for Particle Physics at the Terascale, School of Physics, University of Melbourne, 3010 Melbourne, Australia
| | - J. R. Ellis
- Theoretical Particle Physics and Cosmology Group, Department of Physics, King’s College London, London, WC2R 2LS UK
- National Institute of Chemical Physics and Biophysics, Rävala 10, 10143 Tallinn, Estonia
- Theoretical Physics Department, CERN, 1211 Geneva 23, Switzerland
| | - H. Flächer
- H.H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol, BS8 1TL UK
| | - S. Heinemeyer
- Campus of International Excellence UAM+CSIC, Cantoblanco, 28049 Madrid, Spain
- Instituto de Física Teórica UAM-CSIC, C/ Nicolas Cabrera 13-15, 28049 Madrid, Spain
- Instituto de Física de Cantabria (CSIC-UC), Avda. de Los Castros s/n, 39005 Santander, Spain
| | - M. Lucio
- Instituto Galego de Física de Altas Enerxías, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - D. Martínez Santos
- Instituto Galego de Física de Altas Enerxías, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - K. A. Olive
- William I. Fine Theoretical Physics Institute, School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455 USA
| | - A. Richards
- High Energy Physics Group, Blackett Laboratory, Imperial College, Prince Consort Road, London, SW7 2AZ UK
| | - V. C. Spanos
- Section of Nuclear and Particle Physics, Department of Physics, National and Kapodistrian University of Athens, 15784 Athens, Greece
| | - I. Suárez Fernández
- Instituto Galego de Física de Altas Enerxías, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - G. Weiglein
- DESY, Notkestraße 85, 22607 Hamburg, Germany
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26
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Marumo F, Sakurai K, Sato N, Shimada H, Iwanami S. Deranged Mineral Content in the Bone of Patients with Chronic Renal Failure, Estimated by Computed Tomography. Int J Artif Organs 2018. [DOI: 10.1177/039139888500800208] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- F. Marumo
- Departments of Medicine and Radiology Kitasato University School of Medicine Sagamihara, Kanagawa 228, Japan
| | - K. Sakurai
- Departments of Medicine and Radiology Kitasato University School of Medicine Sagamihara, Kanagawa 228, Japan
| | - N. Sato
- Departments of Medicine and Radiology Kitasato University School of Medicine Sagamihara, Kanagawa 228, Japan
| | - H. Shimada
- Departments of Medicine and Radiology Kitasato University School of Medicine Sagamihara, Kanagawa 228, Japan
| | - S. Iwanami
- Departments of Medicine and Radiology Kitasato University School of Medicine Sagamihara, Kanagawa 228, Japan
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27
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Sakurai K, Hiraizumi M, Isogai N, Komatsu R, Shibata T, Ohta Y. Synthesis of a fluorescent photoaffinity probe of OSW-1 by site-selective acylation of an inactive congener and biological evaluation. Chem Commun (Camb) 2017; 53:517-520. [PMID: 27909709 DOI: 10.1039/c6cc08955k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A novel fluorescent photoaffinity probe of OSW-1 was prepared in two steps from a naturally occurring inactive congener by a sequential site-selective acylation strategy using Me2SnCl2. It displayed highly potent anticancer activity and a similar intracellular localization property to that of a fluorescently-tagged OSW-1, thereby demonstrating its potential utility in live cell studies.
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Affiliation(s)
- K Sakurai
- Tokyo University of Agriculture and Technology, Department of Biotechnology and Life Science, Koganei-shi, Tokyo 184-8588, Japan.
| | - M Hiraizumi
- Tokyo University of Agriculture and Technology, Department of Biotechnology and Life Science, Koganei-shi, Tokyo 184-8588, Japan.
| | - N Isogai
- Tokyo University of Agriculture and Technology, Department of Biotechnology and Life Science, Koganei-shi, Tokyo 184-8588, Japan.
| | - R Komatsu
- Tokyo University of Agriculture and Technology, Department of Biotechnology and Life Science, Koganei-shi, Tokyo 184-8588, Japan.
| | - T Shibata
- Tokyo University of Agriculture and Technology, Department of Biotechnology and Life Science, Koganei-shi, Tokyo 184-8588, Japan.
| | - Y Ohta
- Tokyo University of Agriculture and Technology, Department of Biotechnology and Life Science, Koganei-shi, Tokyo 184-8588, Japan.
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28
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Noguchi-Watanabe M, Sakurai K, Matsumoto Y, Yoshie S, Furuta T, Matsukura A, Ayako S, Yamamoto-Mitani N. EFFECT OF A WORKSHOP FOR HOMECARE PROVIDERS TO PROMOTE INTERPROFESSIONAL COLLABORATION IN JAPAN. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.5109] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
| | | | | | | | | | | | - S. Ayako
- Kashiwa city, Kashiwa city, Japan
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29
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Bagnaschi E, Borsato M, Sakurai K, Buchmueller O, Cavanaugh R, Chobanova V, Citron M, Costa JC, De Roeck A, Dolan MJ, Ellis JR, Flächer H, Heinemeyer S, Isidori G, Lucio M, Luo F, Santos DM, Olive KA, Richards A, Weiglein G. Likelihood analysis of the minimal AMSB model. Eur Phys J C Part Fields 2017; 77:268. [PMID: 28515671 PMCID: PMC5409153 DOI: 10.1140/epjc/s10052-017-4810-0] [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] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 04/05/2017] [Indexed: 06/07/2023]
Abstract
We perform a likelihood analysis of the minimal anomaly-mediated supersymmetry-breaking (mAMSB) model using constraints from cosmology and accelerator experiments. We find that either a wino-like or a Higgsino-like neutralino LSP, [Formula: see text], may provide the cold dark matter (DM), both with similar likelihoods. The upper limit on the DM density from Planck and other experiments enforces [Formula: see text] after the inclusion of Sommerfeld enhancement in its annihilations. If most of the cold DM density is provided by the [Formula: see text], the measured value of the Higgs mass favours a limited range of [Formula: see text] (and also for [Formula: see text] if [Formula: see text]) but the scalar mass [Formula: see text] is poorly constrained. In the wino-LSP case, [Formula: see text] is constrained to about [Formula: see text] and [Formula: see text] to [Formula: see text], whereas in the Higgsino-LSP case [Formula: see text] has just a lower limit [Formula: see text] ([Formula: see text]) and [Formula: see text] is constrained to [Formula: see text] in the [Formula: see text] ([Formula: see text]) scenario. In neither case can the anomalous magnetic moment of the muon, [Formula: see text], be improved significantly relative to its Standard Model (SM) value, nor do flavour measurements constrain the model significantly, and there are poor prospects for discovering supersymmetric particles at the LHC, though there are some prospects for direct DM detection. On the other hand, if the [Formula: see text] contributes only a fraction of the cold DM density, future LHC [Formula: see text]-based searches for gluinos, squarks and heavier chargino and neutralino states as well as disappearing track searches in the wino-like LSP region will be relevant, and interference effects enable [Formula: see text] to agree with the data better than in the SM in the case of wino-like DM with [Formula: see text].
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Affiliation(s)
| | - M. Borsato
- Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Spain
| | - K. Sakurai
- Science Laboratories, Department of Physics, Institute for Particle Physics Phenomenology, University of Durham, South Road, Durham, DH1 3LE UK
- Faculty of Physics, Institute of Theoretical Physics, University of Warsaw, ul. Pasteura 5, 02-093 Warsaw, Poland
| | - O. Buchmueller
- High Energy Physics Group, Blackett Laboratory, Imperial College, Prince Consort Road, London, SW7 2AZ UK
| | - R. Cavanaugh
- Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510 USA
- Physics Department, University of Illinois at Chicago, Chicago, IL 60607-7059 USA
| | - V. Chobanova
- Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Spain
| | - M. Citron
- High Energy Physics Group, Blackett Laboratory, Imperial College, Prince Consort Road, London, SW7 2AZ UK
| | - J. C. Costa
- High Energy Physics Group, Blackett Laboratory, Imperial College, Prince Consort Road, London, SW7 2AZ UK
| | - A. De Roeck
- Experimental Physics Department, CERN, 1211 Geneva 23, Switzerland
- Antwerp University, 2610 Wilrijk, Belgium
| | - M. J. Dolan
- ARC Centre of Excellence for Particle Physics at the Terascale, School of Physics, University of Melbourne, Melbourne, 3010 Australia
| | - J. R. Ellis
- Theoretical Particle Physics and Cosmology Group, Department of Physics, King’s College London, London, WC2R 2LS UK
- Theoretical Physics Department, CERN, 1211 Geneva 23, Switzerland
| | - H. Flächer
- H.H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol, BS8 1TL UK
| | - S. Heinemeyer
- Campus of International Excellence UAM+CSIC, Cantoblanco, 28049 Madrid, Spain
- Instituto de Física Teórica UAM-CSIC, C/ Nicolas Cabrera 13-15, 28049 Madrid, Spain
- Instituto de Física de Cantabria (CSIC-UC), Avda. de Los Castros s/n, 39005 Cantabria, Spain
| | - G. Isidori
- Physik-Institut, Universität Zürich, 8057 Zurich, Switzerland
| | - M. Lucio
- Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Spain
| | - F. Luo
- Kavli IPMU (WPI), UTIAS, The University of Tokyo, Kashiwa, Chiba 277-8583 Japan
| | - D. Martínez Santos
- Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Spain
| | - K. A. Olive
- William I. Fine Theoretical Physics Institute, School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455 USA
| | - A. Richards
- High Energy Physics Group, Blackett Laboratory, Imperial College, Prince Consort Road, London, SW7 2AZ UK
| | - G. Weiglein
- DESY, Notkestraße 85, 22607 Hamburg, Germany
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30
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Abstract
Vestibular-somatosensory interactions are pervasive in the brain but it remains unclear why. Here we explore the contribution of tactile flow to processing self-motion. We assessed two aspects of self-motion: timing and speed. Participants sat on an oscillating swing and either kept their hands on their laps or rested them lightly on an earth-stationary surface. They viewed a grating oscillating at the same frequency as their motion and judged its phase or, in a separate experiment, its speed relative to their perceived motion. Participants required the phase to precede body movement (with or without tactile flow) or tactile flow by ~5° (44 ms) to appear earth-stationary. Speed judgments were 4-10% faster when motion was from tactile flow, either alone or with body motion, compared to body motion alone (where speed judgments were accurate). By comparing response variances we conclude that phase and speed judgments do not reflect optimal integration of tactile flow with other cues to body motion: instead tactile flow dominates perceived self-motion - acting as an emergency override. This may explain why even minimal tactile cues are so helpful in promoting stability and suggests that providing artificial tactile cues might be a powerful aid to perceiving self-motion.
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Affiliation(s)
- Laurence R Harris
- Centre for Vision Research, York University, 4700 Keele St., Toronto, Ontario, M3J 1P3, Canada.
| | - Kenzo Sakurai
- Department of Human Science, Tohoku Gakuin University, 2-1-1 Tenjinzawa, Izumi-ku, Sendai, Miyagi, 981-3193, Japan.,Division of Human Informatics, Graduate School of Tohoku Gakuin University, 2-1-1 Tenjinzawa, Izumi-ku, Sendai, Miyagi, 981-3193, Japan.,KyberVision Japan LLC, 5-2-8 Takamori, Izumi-ku, Sendai, Miyagi, 981-3203, Japan
| | - William H A Beaudot
- Division of Human Informatics, Graduate School of Tohoku Gakuin University, 2-1-1 Tenjinzawa, Izumi-ku, Sendai, Miyagi, 981-3193, Japan.,KyberVision Japan LLC, 5-2-8 Takamori, Izumi-ku, Sendai, Miyagi, 981-3203, Japan
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31
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Bagnaschi E, Costa JC, Sakurai K, Borsato M, Buchmueller O, Cavanaugh R, Chobanova V, Citron M, De Roeck A, Dolan MJ, Ellis JR, Flächer H, Heinemeyer S, Isidori G, Lucio M, Martínez Santos D, Olive KA, Richards A, de Vries KJ, Weiglein G. Likelihood analysis of supersymmetric SU(5) GUTs. Eur Phys J C Part Fields 2017; 77:104. [PMID: 28260982 PMCID: PMC5312117 DOI: 10.1140/epjc/s10052-017-4639-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Accepted: 01/19/2017] [Indexed: 06/06/2023]
Abstract
We perform a likelihood analysis of the constraints from accelerator experiments and astrophysical observations on supersymmetric (SUSY) models with SU(5) boundary conditions on soft SUSY-breaking parameters at the GUT scale. The parameter space of the models studied has seven parameters: a universal gaugino mass [Formula: see text], distinct masses for the scalar partners of matter fermions in five- and ten-dimensional representations of SU(5), [Formula: see text] and [Formula: see text], and for the [Formula: see text] and [Formula: see text] Higgs representations [Formula: see text] and [Formula: see text], a universal trilinear soft SUSY-breaking parameter [Formula: see text], and the ratio of Higgs vevs [Formula: see text]. In addition to previous constraints from direct sparticle searches, low-energy and flavour observables, we incorporate constraints based on preliminary results from 13 TeV LHC searches for jets + [Formula: see text] events and long-lived particles, as well as the latest PandaX-II and LUX searches for direct Dark Matter detection. In addition to previously identified mechanisms for bringing the supersymmetric relic density into the range allowed by cosmology, we identify a novel [Formula: see text] coannihilation mechanism that appears in the supersymmetric SU(5) GUT model and discuss the role of [Formula: see text] coannihilation. We find complementarity between the prospects for direct Dark Matter detection and SUSY searches at the LHC.
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Affiliation(s)
| | - J. C. Costa
- High Energy Physics Group, Blackett Laboratory, Imperial College, Prince Consort Road, London, SW7 2AZ UK
| | - K. Sakurai
- Department of Physics, Institute for Particle Physics Phenomenology, University of Durham, Science Laboratories, South Road, Durham, DH1 3LE UK
- Faculty of Physics, Institute of Theoretical Physics, University of Warsaw, ul. Pasteura 5, 02-093 Warsaw, Poland
| | - M. Borsato
- Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Spain
| | - O. Buchmueller
- High Energy Physics Group, Blackett Laboratory, Imperial College, Prince Consort Road, London, SW7 2AZ UK
| | - R. Cavanaugh
- Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510 USA
- Physics Department, University of Illinois at Chicago, Chicago, IL 60607-7059 USA
| | - V. Chobanova
- Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Spain
| | - M. Citron
- High Energy Physics Group, Blackett Laboratory, Imperial College, Prince Consort Road, London, SW7 2AZ UK
| | - A. De Roeck
- Experimental Physics Department, CERN, 1211 Geneva 23, Switzerland
- Antwerp University, 2610 Wilrijk, Belgium
| | - M. J. Dolan
- ARC Centre of Excellence for Particle Physics at the Terascale, School of Physics, University of Melbourne, Parkville, 3010 Australia
| | - J. R. Ellis
- Theoretical Particle Physics and Cosmology Group, Department of Physics, King’s College London, London, WC2R 2LS UK
- Theoretical Physics Department, CERN, 1211 Geneva 23, Switzerland
| | - H. Flächer
- H.H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol, BS8 1TL UK
| | - S. Heinemeyer
- Campus of International Excellence UAM+CSIC, Cantoblanco, 28049 Madrid, Spain
- Instituto de Física Teórica UAM-CSIC, C/Nicolas Cabrera 13-15, 28049 Madrid, Spain
- Instituto de Física de Cantabria (CSIC-UC), Avda. de Los Castros s/n, 39005 Santander, Spain
| | - G. Isidori
- Physik-Institut, Universität Zürich, 8057 Zurich, Switzerland
| | - M. Lucio
- Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Spain
| | - D. Martínez Santos
- Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Spain
| | - K. A. Olive
- William I. Fine Theoretical Physics Institute, School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455 USA
| | - A. Richards
- High Energy Physics Group, Blackett Laboratory, Imperial College, Prince Consort Road, London, SW7 2AZ UK
| | - K. J. de Vries
- High Energy Physics Group, Blackett Laboratory, Imperial College, Prince Consort Road, London, SW7 2AZ UK
| | - G. Weiglein
- DESY, Notkestraße 85, 22607 Hamburg, Germany
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32
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Sakurai K, Hiraizumi M, Isogai N, Komatsu R, Shibata T, Ohta Y. Correction: Synthesis of a fluorescent photoaffinity probe of OSW-1 by site-selective acylation of an inactive congener and biological evaluation. Chem Commun (Camb) 2017; 53:462. [DOI: 10.1039/c6cc90563c] [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: 11/21/2022]
Abstract
Correction for ‘Synthesis of a fluorescent photoaffinity probe of OSW-1 by site-selective acylation of an inactive congener and biological evaluation’ by K. Sakurai et al., Chem. Commun., 2017, DOI: 10.1039/c6cc08955k.
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Affiliation(s)
- K. Sakurai
- Tokyo University of Agriculture and Technology
- Department of Biotechnology and Life Science
- Tokyo 184-8588
- Japan
| | - M. Hiraizumi
- Tokyo University of Agriculture and Technology
- Department of Biotechnology and Life Science
- Tokyo 184-8588
- Japan
| | - N. Isogai
- Tokyo University of Agriculture and Technology
- Department of Biotechnology and Life Science
- Tokyo 184-8588
- Japan
| | - R. Komatsu
- Tokyo University of Agriculture and Technology
- Department of Biotechnology and Life Science
- Tokyo 184-8588
- Japan
| | - T. Shibata
- Tokyo University of Agriculture and Technology
- Department of Biotechnology and Life Science
- Tokyo 184-8588
- Japan
| | - Y. Ohta
- Tokyo University of Agriculture and Technology
- Department of Biotechnology and Life Science
- Tokyo 184-8588
- Japan
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33
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Abstract
A 65-year-old man who had been diagnosed with transient global amnesia (TGA) 15 years previously was admitted to hospital with complaints of amnesia and headache. His symptoms improved on day-2. The initial brain MRI and electroencephalography findings were normal. He was diagnosed with a recurrence of TGA and discharged. However, he returned with right leg weakness and complained of a thunderclap headache. MRI demonstrated subarachnoid hemorrhage and multifocal segmental narrowing of the left posterior cerebral artery (PCA) and large intracranial arteries, and he was diagnosed with reversible cerebral vasoconstriction syndrome (RCVS). He was discharged on day-30 without any neurological deficits. This case suggested that TGA should be interpreted as one of the symptoms of RCVS or a prodromal symptom of RCVS.
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Affiliation(s)
- Kenji Isahaya
- Department of Neurology, St. Marianna University School of Medicine, Japan
| | - Kensuke Shinohara
- Department of Neurology, St. Marianna University School of Medicine, Japan
| | - Masashi Akamatu
- Department of Neurology, St. Marianna University School of Medicine, Japan
| | - Takahiro Shimizu
- Department of Neurology, St. Marianna University School of Medicine, Japan
| | - Kenzo Sakurai
- Department of Neurology, St. Marianna University School of Medicine, Japan
| | - Makoto Shiraishi
- Department of Neurology, St. Marianna University School of Medicine, Japan
| | - Hisanao Akiyama
- Department of Neurology, St. Marianna University School of Medicine, Japan
| | - Yasuhiro Hasegawa
- Department of Neurology, St. Marianna University School of Medicine, Japan
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34
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Sakurai K, Dainichi T, Matsumoto R, Nakano Y, Kabashima K. 400 A novel and accurate animal model of psoriatic dermatitis induced by epicutaneous application of a p38 MAPK activator in an IL-17 dependent manner. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.06.420] [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: 10/21/2022]
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35
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Tachibana R, Beaudot W, Sakurai K. Observers have less confidence in perceiving self-motion direction from visual and vestibular information when the multimodal integration is in the optimal range. J Vis 2016. [DOI: 10.1167/16.12.1202] [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: 11/24/2022] Open
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36
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Fuchigami T, Nishioka M, Akashige T, Higa S, Takahashi K, Nakayashiro M, Nabeshima T, Sashinami A, Sakurai K, Takefuta K, Nagata N. Growing potential of small aortic valve with aortic coarctation or interrupted aortic arch after bilateral pulmonary artery banding. Interact Cardiovasc Thorac Surg 2016; 23:688-693. [DOI: 10.1093/icvts/ivw230] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 06/03/2016] [Accepted: 06/07/2016] [Indexed: 11/12/2022] Open
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37
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Abstract
We report that anomalous motion illusion in a new variant of the Ouchi figure is well predicted by the strength of its Fourier fundamentals and harmonics. The original Ouchi figure consists of a rectangular checkerboard pattern surrounded by an orthogonal rectangular checkerboard pattern, in which illusory relative motion between the two regions is perceived. Although this illusion has been explained in terms of biases in integrating one-dimensional motion signals to determine the two-dimensional motion direction, the physiological mechanism has not been clarified. With our new stimuli, which consisted of thin lines instead of rectangles, we found that the perceived illusion is drastically reduced when the position of each line element is randomly shifted. This is not predicted by simple models of local motion integration along the visible edges. We demonstrate that the relative amplitude of the relevant Fourier fundamentals and harmonics leads to a quantitative prediction. Our analysis was successfully applied to other variants of the Ouchi figure (Khang and Essock 1997 Perception26 585–597), closely predicting the reported rating. The results indicate that the underlying physiological mechanism is sensitive to the Fourier components of the stimuli rather than the visible edges.
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Affiliation(s)
- Hiroshi Ashida
- Graduate School of Letters, Kyoto University, Kyoto 606-8501, Japan.
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38
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Abstract
We investigated whether there is a trade-off between magnitude of perceived depth and that of perceived motion, using density changes (expansion/contraction) in a random-dot pattern yoked to lateral head movements. We simulated sine-wave surfaces with a depth of 0, 1, 2, 4, 8, and 16 cm. Subjects viewed the patterns monocularly while moving their heads from side to side laterally, and reported the magnitude of perceived depth and that of perceived motion. When simulated depth was less than 4 cm, the surfaces looked stationary and the amount of perceived depth was the same as that of simulated depth. When it was more than 4 cm, the surfaces appeared to move in a rocking motion and the amount of perceived depth was smaller than that of simulated depth. The trade-off implies a mechanism which transduces single visual input into depth or motion.
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39
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Bagnaschi EA, Buchmueller O, Cavanaugh R, Citron M, De Roeck A, Dolan MJ, Ellis JR, Flächer H, Heinemeyer S, Isidori G, Malik S, Martínez Santos D, Olive KA, Sakurai K, de Vries KJ, Weiglein G. Supersymmetric dark matter after LHC run 1. Eur Phys J C Part Fields 2015; 75:500. [PMID: 26543400 PMCID: PMC4622175 DOI: 10.1140/epjc/s10052-015-3718-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 10/05/2015] [Indexed: 06/05/2023]
Abstract
Different mechanisms operate in various regions of the MSSM parameter space to bring the relic density of the lightest neutralino, [Formula: see text], assumed here to be the lightest SUSY particle (LSP) and thus the dark matter (DM) particle, into the range allowed by astrophysics and cosmology. These mechanisms include coannihilation with some nearly degenerate next-to-lightest supersymmetric particle such as the lighter stau [Formula: see text], stop [Formula: see text] or chargino [Formula: see text], resonant annihilation via direct-channel heavy Higgs bosons H / A, the light Higgs boson h or the Z boson, and enhanced annihilation via a larger Higgsino component of the LSP in the focus-point region. These mechanisms typically select lower-dimensional subspaces in MSSM scenarios such as the CMSSM, NUHM1, NUHM2, and pMSSM10. We analyze how future LHC and direct DM searches can complement each other in the exploration of the different DM mechanisms within these scenarios. We find that the [Formula: see text] coannihilation regions of the CMSSM, NUHM1, NUHM2 can largely be explored at the LHC via searches for [Formula: see text] events and long-lived charged particles, whereas their H / A funnel, focus-point and [Formula: see text] coannihilation regions can largely be explored by the LZ and Darwin DM direct detection experiments. We find that the dominant DM mechanism in our pMSSM10 analysis is [Formula: see text] coannihilation: parts of its parameter space can be explored by the LHC, and a larger portion by future direct DM searches.
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Affiliation(s)
| | - O. Buchmueller
- />High Energy Physics Group, Blackett Laboratory, Imperial College, Prince Consort Road, London, SW7 2AZ UK
| | - R. Cavanaugh
- />Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510 USA
- />Physics Department, University of Illinois at Chicago, Chicago, IL 60607-7059 USA
| | - M. Citron
- />High Energy Physics Group, Blackett Laboratory, Imperial College, Prince Consort Road, London, SW7 2AZ UK
| | - A. De Roeck
- />Physics Department, CERN, 1211 Geneva 23, Switzerland
- />Antwerp University, 2610 Wilrijk, Belgium
| | - M. J. Dolan
- />Theory Group, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025-7090 USA
- />ARC Centre of Excellence for Particle Physics at the Terascale, School of Physics, University of Melbourne, Parkville, 3010 Australia
| | - J. R. Ellis
- />Physics Department, CERN, 1211 Geneva 23, Switzerland
- />Theoretical Particle Physics and Cosmology Group, Department of Physics, King’s College London, London, WC2R 2LS UK
| | - H. Flächer
- />H.H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol, BS8 1TL UK
| | - S. Heinemeyer
- />Instituto de Física de Cantabria (CSIC-UC), 39005 Santander, Spain
| | - G. Isidori
- />Physik-Institut, Universität Zürich, 8057 Zürich, Switzerland
| | - S. Malik
- />High Energy Physics Group, Blackett Laboratory, Imperial College, Prince Consort Road, London, SW7 2AZ UK
| | - D. Martínez Santos
- />Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Spain
| | - K. A. Olive
- />William I. Fine Theoretical Physics Institute, School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455 USA
| | - K. Sakurai
- />Theoretical Particle Physics and Cosmology Group, Department of Physics, King’s College London, London, WC2R 2LS UK
| | - K. J. de Vries
- />High Energy Physics Group, Blackett Laboratory, Imperial College, Prince Consort Road, London, SW7 2AZ UK
| | - G. Weiglein
- />DESY, Notkestraße 85, 22607 Hamburg, Germany
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40
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de Vries KJ, Bagnaschi EA, Buchmueller O, Cavanaugh R, Citron M, De Roeck A, Dolan MJ, Ellis JR, Flächer H, Heinemeyer S, Isidori G, Malik S, Marrouche J, Santos DM, Olive KA, Sakurai K, Weiglein G. The pMSSM10 after LHC run 1. Eur Phys J C Part Fields 2015; 75:422. [PMID: 26543402 PMCID: PMC4623934 DOI: 10.1140/epjc/s10052-015-3599-y] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2015] [Accepted: 08/04/2015] [Indexed: 06/04/2023]
Abstract
We present a frequentist analysis of the parameter space of the pMSSM10, in which the following ten soft SUSY-breaking parameters are specified independently at the mean scalar top mass scale [Formula: see text]: the gaugino masses [Formula: see text], the first-and second-generation squark masses [Formula: see text], the third-generation squark mass [Formula: see text], a common slepton mass [Formula: see text] and a common trilinear mixing parameter A, as well as the Higgs mixing parameter [Formula: see text], the pseudoscalar Higgs mass [Formula: see text] and [Formula: see text], the ratio of the two Higgs vacuum expectation values. We use the MultiNest sampling algorithm with [Formula: see text]1.2 [Formula: see text] points to sample the pMSSM10 parameter space. A dedicated study shows that the sensitivities to strongly interacting sparticle masses of ATLAS and CMS searches for jets, leptons [Formula: see text][Formula: see text] signals depend only weakly on many of the other pMSSM10 parameters. With the aid of the Atom and Scorpion codes, we also implement the LHC searches for electroweakly interacting sparticles and light stops, so as to confront the pMSSM10 parameter space with all relevant SUSY searches. In addition, our analysis includes Higgs mass and rate measurements using the HiggsSignals code, SUSY Higgs exclusion bounds, the measurements of [Formula: see text] by LHCb and CMS, other B-physics observables, electroweak precision observables, the cold dark matter density and the XENON100 and LUX searches for spin-independent dark matter scattering, assuming that the cold dark matter is mainly provided by the lightest neutralino [Formula: see text]. We show that the pMSSM10 is able to provide a supersymmetric interpretation of [Formula: see text], unlike the CMSSM, NUHM1 and NUHM2. As a result, we find (omitting Higgs rates) that the minimum [Formula: see text] with 18 degrees of freedom (d.o.f.) in the pMSSM10, corresponding to a [Formula: see text] probability of 30.8 %, to be compared with [Formula: see text] in the CMSSM (NUHM1) (NUHM2). We display the one-dimensional likelihood functions for sparticle masses, and we show that they may be significantly lighter in the pMSSM10 than in the other models, e.g., the gluino may be as light as [Formula: see text]1250 [Formula: see text] at the 68 % CL, and squarks, stops, electroweak gauginos and sleptons may be much lighter than in the CMSSM, NUHM1 and NUHM2. We discuss the discovery potential of future LHC runs, [Formula: see text] colliders and direct detection experiments.
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Affiliation(s)
- K. J. de Vries
- />High Energy Physics Group, Blackett Laboratory, Imperial College, Prince Consort Road, London, SW7 2AZ UK
| | | | - O. Buchmueller
- />High Energy Physics Group, Blackett Laboratory, Imperial College, Prince Consort Road, London, SW7 2AZ UK
| | - R. Cavanaugh
- />Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510 USA
- />Physics Department, University of Illinois at Chicago, Chicago, IL 60607-7059 USA
| | - M. Citron
- />High Energy Physics Group, Blackett Laboratory, Imperial College, Prince Consort Road, London, SW7 2AZ UK
| | - A. De Roeck
- />Physics Department, CERN, 1211 Geneva 23, Switzerland
- />Antwerp University, 2610 Wilrijk, Belgium
| | - M. J. Dolan
- />Theory Group, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025-7090 USA
- />ARC Centre of Excellence for Particle Physics at the Terascale, School of Physics, University of Melbourne, Melbourne, 3010 Australia
| | - J. R. Ellis
- />Physics Department, CERN, 1211 Geneva 23, Switzerland
- />Theoretical Particle Physics and Cosmology Group, Department of Physics, King’s College London, London, WC2R 2LS UK
| | - H. Flächer
- />H.H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol, BS8 1TL UK
| | - S. Heinemeyer
- />Instituto de Física de Cantabria (CSIC-UC), 39005 Santander, Spain
| | - G. Isidori
- />Physik-Institut, Universität Zürich, 8057 Zurich, Switzerland
| | - S. Malik
- />High Energy Physics Group, Blackett Laboratory, Imperial College, Prince Consort Road, London, SW7 2AZ UK
| | - J. Marrouche
- />Physics Department, CERN, 1211 Geneva 23, Switzerland
| | - D. Martínez Santos
- />Nikhef National Institute for Subatomic Physics, VU University Amsterdam, Amsterdam, The Netherlands
- />Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Spain
| | - K. A. Olive
- />William I. Fine Theoretical Physics Institute, School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455 USA
| | - K. Sakurai
- />Theoretical Particle Physics and Cosmology Group, Department of Physics, King’s College London, London, WC2R 2LS UK
| | - G. Weiglein
- />DESY, Notkestraße 85, 22607 Hamburg, Germany
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Sakurai K, Tanaka S, Yanagisawa T, Mori K, Horiuchi M, Hasegawa Y. [Life-threatening airway obstruction accompanied by vocal cord paralysis due to indwelling nasogastric tube in malnourished elderly patients: a report of four cases]. Rinsho Shinkeigaku 2015; 55:555-560. [PMID: 26050663 DOI: 10.5692/clinicalneurol.cn-000670] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We report 4 cases of elderly patients with abrupt onset of serious airway obstruction that is presumed to be due to indwelling nasogastric tube. 2 cases are patients of cerebral infarction and 2 cases are patients of Parkinson disease. The average number of days until NGTS is 17.8 days. In all cases, fiber-optic examination revealed complete loss of adduction in both vocal cords. Infection in the posterior cricoid region caused by ulcerative lesions at the upper end of the esophagus has been implicated as a pathophysiological mechanism of this syndrome, but it was not possible to confirm in the 4 cases. Because it is difficult to exactly diagnose with NGTS in clinical practice, there is a need to consider the inducing factor and response. Body mass index is very low in each of the 4 cases, ranging from 14.2 to 18.0, implying a severely malnourished or immunocompromised state, and may represent a high risk factor for this syndrome. Whenever this life-threatening syndrome is suspected, direct vocal cord examination and removal of the tube are recommended. In addition, the clinicians should not hesitate about doing intubation or tracheotomy in emergency.
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Affiliation(s)
- Kenzo Sakurai
- Department of Neurology, St. Marianna University School of Medicine
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Toyokawa T, Kubo N, Shibutani M, Sakurai K, Nagahara H, Tanaka H, Muguruma K, Ohtani H, Yashiro M, Maeda K, Ohira M, Hirakawa K. P-045 The pretreatment Controlling Nutritional Status (CONUT) score as an independent prognostic factor in patients with clinical Stage I-III esophageal squamous cell carcinoma. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv233.45] [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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Tachibana K, Sakurai K, Yokoh H, Ishibashi T, Ishikawa K, Shirasawa T, Yokote K. Mutation in insulin receptor attenuates oxidative stress and apoptosis in pancreatic beta-cells induced by nutrition excess: reduced insulin signaling and ROS. Horm Metab Res 2015; 47:176-83. [PMID: 25295420 DOI: 10.1055/s-0034-1389990] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Type 2 diabetes results from the failure of beta-cells to adequately compensate for insulin resistance. Although the reduction of beta-cell mass is because of increased cell death and/or inadequate replication or neogenesis, the mechanism underlying beta-cell mass reduction is not fully understood. Here, we clarify the role of insulin signaling pathway in the beta-cell apoptosis using insulin resistant model mice. Wild-type mice and those carrying a mutation in the insulin receptor (mIR) were fed either regular chow or a high-fat diet for 6 weeks and subsequently investigated for beta-cell apoptosis, endoplasmic reticulum stress, and oxidative stress. Insulin tolerance tests revealed that mIR mice fed a high-fat diet (mIRHF) had higher insulin resistance. Beta-cell apoptosis was increased 2-fold in the wild-type mice fed a high-fat diet (wHF) compared with control mice, whereas beta-cell apoptosis in mIRHF mice did not increase compared with that in mIR mice. The expression of endoplasmic reticulum stress markers in isolated islets did not differ between the groups. Staining of 8-hydroxy-2'-deoxyguanosine and 4-hydroxy-2-nonenal in islets of wHF mice significantly increased, but the staining in mIRHF mice was not different from that in control group. Gene expression of the antioxidant enzyme MnSOD was significantly higher in mIRHF mice than those in the other 3 groups. A mutation in the insulin receptor attenuated the oxidative stress and apoptosis in beta-cells even though high caloric nutrient was loaded. Our results suggest that reduced insulin signaling protects beta-cells thorough decline of oxidative stress.
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Affiliation(s)
- K Tachibana
- Department of Clinical Cell Biology and Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
| | - K Sakurai
- Department of Clinical Cell Biology and Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
| | - H Yokoh
- Department of Clinical Cell Biology and Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
| | - T Ishibashi
- Department of Clinical Cell Biology and Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
| | - K Ishikawa
- Department of Clinical Cell Biology and Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
| | - T Shirasawa
- Molecular Gerontology, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - K Yokote
- Department of Clinical Cell Biology and Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
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Zhang Q, Ichimaru N, Higuchi S, Cai S, Hou J, Fujino M, Nonomura N, Kobayashi M, Ando H, Uno A, Sakurai K, Mochizuki S, Adachi Y, Ohno N, Zou H, Xu J, Li XK, Takahara S. Permanent acceptance of mouse cardiac allografts with CD40 siRNA to induce regulatory myeloid cells by use of a novel polysaccharide siRNA delivery system. Gene Ther 2015; 22:217-26. [DOI: 10.1038/gt.2014.119] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Revised: 11/06/2014] [Accepted: 11/17/2014] [Indexed: 01/27/2023]
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Kang Y, Takeda R, Nada A, Thavarith L, Tang S, Nuki K, Sakurai K. Removing arsenic from groundwater in Cambodia using high performance iron adsorbent. Environ Monit Assess 2014; 186:5605-5616. [PMID: 24894910 DOI: 10.1007/s10661-014-3806-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Accepted: 05/06/2014] [Indexed: 06/03/2023]
Abstract
In Cambodia, groundwater has been contaminated with arsenic, and purification of the water is an urgent issue. From 2010 to 2012, an international collaborative project between Japan and Cambodia for developing arsenic-removing technology from well water was conducted and supported by the foundation of New Energy and Industrial Technology Development Organization, Japan. Quality of well water was surveyed in Kandal, Prey Veng, and Kampong Cham Provinces, and a monitoring trial of the arsenic removal equipment using our patented amorphous iron (hydr)oxide adsorbent was performed. Of the 37 wells surveyed, arsenic concentration of 24 exceeded the Cambodian guideline value (50 μg L(-1)), and those of 27 exceeded the WHO guideline for drinking water (10 μg L(-1)). Levels of arsenic were extremely high in some wells (>1,000-6,000 μg L(-1)), suggesting that arsenic pollution of groundwater is serious in these areas. Based on the survey results, 16 arsenic removal equipments were installed in six schools, three temples, two health centers, four private houses, and one commune office. Over 10 months of monitoring, the average arsenic concentrations of the treated water were between 0 and 10 μg L(-1) at four locations, 10-50 μg L(-1) at eight locations, and >50 μg L(-1) at four locations. The arsenic removal rate ranged in 83.1-99.7%, with an average of 93.8%, indicating that the arsenic removal equipment greatly lower the risk of arsenic exposure to the residents. Results of the field trial showed that As concentration of the treated water could be reduced to <10 µg L(-1) by managing the As removal equipment properly, suggesting that the amorphous iron (hydr)oxide adsorbent has high adsorbing capacity for As not only in the laboratory environment but also in the field condition. This is one of the succeeding As removal techniques that could reduce As concentration of water below the WHO guideline value for As in situ.
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Affiliation(s)
- Y Kang
- Faculty of Agriculture, Kochi University, Monobe Otsu 200, Nankoku City, Kochi, 783-8502, Japan,
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Sakurai K. Shape distortion illusion of circles without prolonged viewing. J Vis 2014. [DOI: 10.1167/14.10.247] [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: 11/24/2022] Open
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Kobayashi K, Yokoh H, Sato Y, Takemoto M, Uchida D, Kanatsuka A, Kuribayashi N, Terano T, Hashimoto N, Sakurai K, Hanaoka H, Ishikawa K, Onishi S, Yokote K. Efficacy and safety of the dipeptidyl peptidase-4 inhibitor sitagliptin compared with α-glucosidase inhibitor in Japanese patients with type 2 diabetes inadequately controlled on sulfonylurea alone (SUCCESS-2): a multicenter, randomized, open-label, non-inferiority trial. Diabetes Obes Metab 2014; 16:761-5. [PMID: 24447683 DOI: 10.1111/dom.12264] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Revised: 11/26/2013] [Accepted: 01/14/2014] [Indexed: 12/01/2022]
Abstract
We assessed the efficacy and safety of sitagliptin compared with α-glucosidase inhibitor (αGI) in 120 of Japanese patients with type 2 diabetes mellitus (T2DM) inadequately controlled on stable ≤2 mg/day glimepiride alone [mean hemoglobin A1c (HbA1c) 7.7%] by the randomized, active-controlled, non-inferiority trial. Patients were randomly assigned to receive additional sitagliptin or αGI for 24 weeks. The primary endpoint was change in HbA1c from baseline to week 12. After 12 weeks, sitagliptin reduced HbA1c by -0.44% (p < 0.001) relative to αGI. At 24 weeks, the reduction was almost identical between the groups (-0.091%, p = 0.47). Gastrointestinal disorders were more common with αGI than with sitagliptin, but only minor hypoglycaemia occurred in both groups at similar frequency. These data suggested that sitagliptin was not inferior to αGI for reduction of HbA1c in Japanese T2DM patients receiving glimepiride alone, and well tolerated with minimum risk of gastrointestinal symptoms and hypoglycaemia.
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Affiliation(s)
- K Kobayashi
- Department of Clinical Cell Biology and Medicine, Chiba University Graduate School of Medicine, Chiba, Japan; Department of Diabetes, Metabolism and Endocrinology, Chiba University Hospital, Chiba, Japan; Department of Regional Disaster Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
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