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Fukutoku Y, Kikuchi H, Hoshi K, Narita K, Asari T, Miyazawa K, Sawada Y, Hayamizu S, Tatsuta T, Oota S, Hasui K, Hiraga H, Chinda D, Mikami T, Subsomwong P, Asano K, Yamane K, Ogawa Y, Sasaki M, Koi T, Ohashi H, Nakane A, Sakuraba H. The new 222-nm far ultraviolet-C lowers bacterial contamination to endoscopists during esophagogastroduodenoscopy. DEN Open 2024; 4:e292. [PMID: 37711643 PMCID: PMC10497812 DOI: 10.1002/deo2.292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 08/08/2023] [Accepted: 08/11/2023] [Indexed: 09/16/2023]
Abstract
Objectives This study aimed to clarify the disinfectant efficacy of the 222-nm far ultraviolet-C (UV-C) during esophagogastroduodenoscopy using bacterial cultures. Methods The endoscopists performed esophagogastroduodenoscopy wearing a gown with a tryptic soy agar medium plate on their epigastric region and were divided into two groups: 222-nm far UV-C irradiation (UV group) and non-UV irradiation (non-UV group). As a control group, tryptic soy agar medium plates were placed about 110 cm above the floor. The incidence of bacterial contamination was determined by positive bacterial culture. The cultured bacteria were identified by 16S rRNA sequencing. Additionally, the actual UV exposure dose was measured using the UV-indicator card which changed colors upon exposure to 222 nm far UV-C. Results The bacterial culture positivity in the UV group (5.03%) was significantly lower than that in the non-UV group (25.76%), p < 0.0001. Most of the bacteria identified in the UV and non-UV groups were normal constituents of the oral flora, including Streptococcus salivarius and Staphylococci. Conversely, pathogenic microbes were found in the control group. The actual exposure doses of 222-nm far UV-C at the endoscopists' face, neck, and epigastric region were 2.09 ± 0.29, 5.89 ± 0.49, and 7.36 ± 0.58 mJ/cm2, respectively. Conclusions The 222-nm far UV-C irradiation reduced bacterial contamination for endoscopists. It can be used with conventional physical coverings to provide more effective infection control.
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Affiliation(s)
- Yukari Fukutoku
- Department of Gastroenterology and HematologyHirosaki University Graduate School of MedicineAomoriJapan
| | - Hidezumi Kikuchi
- Department of Gastroenterology and HematologyHirosaki University Graduate School of MedicineAomoriJapan
- Department of Community MedicineHirosaki University Graduate School of MedicineAomoriJapan
| | - Kentaro Hoshi
- Department of Gastroenterology and HematologyHirosaki University Graduate School of MedicineAomoriJapan
| | - Kouji Narita
- Department of Microbiology and ImmunologyHirosaki University Graduate School of MedicineAomoriJapan
- Institute for Animal ExperimentationHirosaki University Graduate School of MedicineAomoriJapan
| | - Taka Asari
- Department of Gastroenterology and HematologyHirosaki University Graduate School of MedicineAomoriJapan
| | - Kuniaki Miyazawa
- Department of Gastroenterology and HematologyHirosaki University Graduate School of MedicineAomoriJapan
| | - Yohei Sawada
- Department of Gastroenterology and HematologyHirosaki University Graduate School of MedicineAomoriJapan
| | - Shiro Hayamizu
- Department of Gastroenterology and HematologyHirosaki University Graduate School of MedicineAomoriJapan
| | - Tetsuya Tatsuta
- Department of Gastroenterology and HematologyHirosaki University Graduate School of MedicineAomoriJapan
| | - Shinji Oota
- Department of Gastroenterology and HematologyHirosaki University Graduate School of MedicineAomoriJapan
| | - Keisuke Hasui
- Department of Gastroenterology and HematologyHirosaki University Graduate School of MedicineAomoriJapan
| | - Hiroto Hiraga
- Department of Gastroenterology and HematologyHirosaki University Graduate School of MedicineAomoriJapan
| | - Daisuke Chinda
- Department of Gastroenterology and HematologyHirosaki University Graduate School of MedicineAomoriJapan
| | - Tatsuya Mikami
- Department of Preemptive MedicineHirosaki University Graduate School of MedicineAomoriJapan
| | - Phawinee Subsomwong
- Department of Microbiology and ImmunologyHirosaki University Graduate School of MedicineAomoriJapan
| | - Krisana Asano
- Department of Microbiology and ImmunologyHirosaki University Graduate School of MedicineAomoriJapan
| | - Kyosuke Yamane
- Healthy Life Support Department, Marketing Division, Business Creation Division, Corporate HeadquartersUshio Inc.TokyoJapan
| | - Yoshimasa Ogawa
- Healthy Life Support Department, Marketing Division, Business Creation Division, Corporate HeadquartersUshio Inc.TokyoJapan
| | - Masahiro Sasaki
- Healthy Life Support Department, Marketing Division, Business Creation Division, Corporate HeadquartersUshio Inc.TokyoJapan
| | - Toru Koi
- Healthy Life Support Department, Marketing Division, Business Creation Division, Corporate HeadquartersUshio Inc.TokyoJapan
| | - Hiroyuki Ohashi
- Healthy Life Support Department, Marketing Division, Business Creation Division, Corporate HeadquartersUshio Inc.TokyoJapan
| | - Akio Nakane
- Department of Biopolymer and Health ScienceHirosaki University Graduate School of MedicineAomoriJapan
| | - Hirotake Sakuraba
- Department of Gastroenterology and HematologyHirosaki University Graduate School of MedicineAomoriJapan
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2
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Chinda D, Shimoyama T, Fujiwara S, Kaizuka M, Yasuda K, Akitaya K, Arai T, Sawada Y, Hayamizu S, Tatsuta T, Kikuchi H, Yanagimachi M, Mikami T, Sakuraba H, Fukuda S. Assessment of the Physical Invasiveness of Peroral Endoscopic Myotomy during the Perioperative Period Based on Changes in Energy Metabolism. Metabolites 2023; 13:969. [PMID: 37755250 PMCID: PMC10536107 DOI: 10.3390/metabo13090969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 08/12/2023] [Accepted: 08/21/2023] [Indexed: 09/28/2023] Open
Abstract
A novel treatment method for achalasia of the esophagus and related disorders is known as peroral endoscopic myotomy (POEM). This study aimed to calculate the resting energy expenditure (REE) and evaluated the degree of physical invasiveness based on metabolic changes during the perioperative period of POEM. Fifty-eight patients who underwent POEM were prospectively enrolled; REE, body weight (BW), and basal energy expenditure were measured on the day of POEM, postoperative day 1 (POD 1), and three days after POEM (POD 3). The median REE/BW increased from 19.6 kcal/kg on the day of POEM to 24.5 kcal/kg on POD 1. On POD 3, it remained elevated at 20.9 kcal/kg. The stress factor on POD 1 was 1.20. Among the factors, including the Eckardt score, operation time, and the length of myotomy, the length of myotomy was associated with changes in REE/BW. During the perioperative period of POEM, the level of variation in energy expenditure was lower than that of esophageal cancer surgeries performed under general anesthesia. However, because the length of myotomy is a factor affecting changes in energy expenditure, careful perioperative management is desirable for patients with longer myotomy lengths.
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Affiliation(s)
- Daisuke Chinda
- Division of Endoscopy, Hirosaki University Hospital, Hirosaki 036-8563, Japan
| | | | - Sae Fujiwara
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan; (S.F.); (M.K.); (K.Y.); (K.A.); (T.A.); (Y.S.); (S.H.); (T.T.); (H.K.); (H.S.); (S.F.)
| | - Masatoshi Kaizuka
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan; (S.F.); (M.K.); (K.Y.); (K.A.); (T.A.); (Y.S.); (S.H.); (T.T.); (H.K.); (H.S.); (S.F.)
| | - Kohei Yasuda
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan; (S.F.); (M.K.); (K.Y.); (K.A.); (T.A.); (Y.S.); (S.H.); (T.T.); (H.K.); (H.S.); (S.F.)
| | - Kazuki Akitaya
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan; (S.F.); (M.K.); (K.Y.); (K.A.); (T.A.); (Y.S.); (S.H.); (T.T.); (H.K.); (H.S.); (S.F.)
| | - Tetsu Arai
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan; (S.F.); (M.K.); (K.Y.); (K.A.); (T.A.); (Y.S.); (S.H.); (T.T.); (H.K.); (H.S.); (S.F.)
| | - Yohei Sawada
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan; (S.F.); (M.K.); (K.Y.); (K.A.); (T.A.); (Y.S.); (S.H.); (T.T.); (H.K.); (H.S.); (S.F.)
| | - Shiro Hayamizu
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan; (S.F.); (M.K.); (K.Y.); (K.A.); (T.A.); (Y.S.); (S.H.); (T.T.); (H.K.); (H.S.); (S.F.)
| | - Tetsuya Tatsuta
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan; (S.F.); (M.K.); (K.Y.); (K.A.); (T.A.); (Y.S.); (S.H.); (T.T.); (H.K.); (H.S.); (S.F.)
| | - Hidezumi Kikuchi
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan; (S.F.); (M.K.); (K.Y.); (K.A.); (T.A.); (Y.S.); (S.H.); (T.T.); (H.K.); (H.S.); (S.F.)
| | - Miyuki Yanagimachi
- Department of Endocrinology and Metabolism, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan;
| | - Tatsuya Mikami
- Center of Healthy Aging Innovation, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan;
| | - Hirotake Sakuraba
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan; (S.F.); (M.K.); (K.Y.); (K.A.); (T.A.); (Y.S.); (S.H.); (T.T.); (H.K.); (H.S.); (S.F.)
| | - Shinsaku Fukuda
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan; (S.F.); (M.K.); (K.Y.); (K.A.); (T.A.); (Y.S.); (S.H.); (T.T.); (H.K.); (H.S.); (S.F.)
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Kawai T, Shimohira M, Nakayama K, Sato T, Ohta K, Suzuki K, Sawada Y, Wei Ng K, Huei Leong S, Hiwatashi A. Abstract No. 230 Robot-Assisted CT-Guided Biopsy with an Artificial Intelligence-Based Needle-Path Generator: A Phantom Study. J Vasc Interv Radiol 2023. [DOI: 10.1016/j.jvir.2022.12.291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023] Open
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4
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Hiraga H, Chinda D, Hasui K, Murai Y, Maeda T, Higuchi N, Ogasawara K, Kudo S, Sawada Y, Tatsuta T, Kikuchi H, Ebina M, Hiraga N, Mikami T, Sakuraba H, Fukuda S. Evaluation of Crohn's Disease Small-Bowel Mucosal Healing Using Capsule Endoscopy and Usefulness of Leucine-Rich α2-Glycoprotein. Diagnostics (Basel) 2023; 13:diagnostics13040626. [PMID: 36832114 PMCID: PMC9955912 DOI: 10.3390/diagnostics13040626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/30/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
Recently, the importance of achieving clinical and deep remissions with mucosal healing (MH) has been demonstrated as a therapeutic goal to avoid Crohn's disease (CD) surgical operations. Although ileocolonoscopy (CS) is considered the gold standard, there are increasing reports on the benefits of capsule endoscopy (CE) and serum leucine-rich α2-glycoprotein (LRG) for evaluating small-bowel lesions in CD. We evaluated the data of 20 patients with CD who underwent CE in our department between July 2020 and June 2021 and whose serum LRG level was measured within 2 months. Concerning the mean LRG value, there was no significant difference between the CS-MH and CS-non-MH groups. Conversely, the mean LRG level was 10.0 μg/mL in seven patients in the CE-MH group and 15.2 μg/mL in 11 patients in the CE-non-MH group with a significant difference between the two groups (p = 0.0025). This study's findings show that CE can sufficiently determine total MH in most cases, and LRG is useful for evaluating CD small-bowel MH because of its correlation with CE-MH. Furthermore, satisfying CS-MH criteria and a cut-off value of 13.4 μg/mL for LRG suggests its usefulness as a CD small-bowel MH marker, which could be incorporated into the treat-to-target strategy.
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Affiliation(s)
- Hiroto Hiraga
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan
| | - Daisuke Chinda
- Division of Endoscopy, Hirosaki University Hospital, Hirosaki 036-8563, Japan
- Correspondence: ; Tel.: +81-172-33-5111
| | - Keisuke Hasui
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan
| | - Yasuhisa Murai
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan
| | - Takato Maeda
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan
| | - Naoki Higuchi
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan
| | - Kohei Ogasawara
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan
| | - Sae Kudo
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan
| | - Yohei Sawada
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan
| | - Tetsuya Tatsuta
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan
| | - Hidezumi Kikuchi
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan
| | - Mami Ebina
- Division of Endoscopy, Hirosaki University Hospital, Hirosaki 036-8563, Japan
| | - Noriko Hiraga
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan
| | - Tatsuya Mikami
- Center of Healthy Aging Innovation, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan
| | - Hirotake Sakuraba
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan
| | - Shinsaku Fukuda
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan
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5
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Hoshi K, Kikuchi H, Narita K, Fukutoku Y, Asari T, Miyazawa K, Murai Y, Sawada Y, Tatsuta T, Hasui K, Hiraga H, Chinda D, Mikami T, Subsomwong P, Asano K, Nakane A, Fukuda S, Sakuraba H. Bacterial exposure risk to the endoscopist's face while performing endoscopy. DEN Open 2023; 3:e209. [PMID: 36714062 PMCID: PMC9873584 DOI: 10.1002/deo2.209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/28/2022] [Accepted: 01/09/2023] [Indexed: 01/26/2023]
Abstract
Objectives Gastrointestinal endoscopy increases the risk of bacterial exposure to endoscopists. However, before 2019, most endoscopists did not pay attention to microorganism transmission from patients. This study aimed to investigate the incidence of bacterial exposure to endoscopists' faces during gastrointestinal endoscopic procedures using the bacterial culture method. Methods This was a single-centered, retrospective study including endoscopists who performed various gastrointestinal endoscopy procedures at the Division of Endoscopy, Hirosaki University Hospital between August 31 and October 6, 2020. Endoscopists wore surgical masks and affixed pre-sterilized films over them. Following the gastrointestinal endoscopic procedures, attached microbes were collected from the endoscopists' surface films using sterilized swabs. Collected microorganisms were cultured on tryptic soy agar and 5% sheep blood agar, and the incidence of bacterial exposure was determined by bacterial culture positivity. Cultured bacteria were identified by gram staining and 16S rRNA gene sequencing. Results Bacterial culture positivity was 12.6%, and it was significantly higher in therapeutic than in diagnostic endoscopy. Notably, therapeutic endoscopy increased bacterial culture positivity in colonoscopy, but not in esophagogastroduodenoscopy. Staphylococci, including Staphylococcus epidermidis and Staphylococcus capitis, were the most commonly found bacteria in samples identified through 16S rRNA gene sequencing. Conclusions The risk of bacterial exposure to the endoscopist's face was increased in colonoscopy treatment procedures. Therefore, endoscopists should be aware of the significant risk of microbial infection from scattering fluid that comes from the endoscopy's working channel.
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Affiliation(s)
- Kentaro Hoshi
- Department of Gastroenterology and HematologyHirosaki University Graduate School of MedicineAomoriJapan
| | - Hidezumi Kikuchi
- Department of Gastroenterology and HematologyHirosaki University Graduate School of MedicineAomoriJapan,Department of Community MedicineHirosaki University Graduate School of MedicineAomoriJapan
| | - Koji Narita
- Department of Microbiology and ImmunologyHirosaki University Graduate School of MedicineAomoriJapan,Institute for Animal ExperimentationHirosaki University Graduate School of MedicineAomoriJapan
| | - Yukari Fukutoku
- Department of Gastroenterology and HematologyHirosaki University Graduate School of MedicineAomoriJapan
| | - Taka Asari
- Department of Gastroenterology and HematologyHirosaki University Graduate School of MedicineAomoriJapan
| | - Kuniaki Miyazawa
- Department of Gastroenterology and HematologyHirosaki University Graduate School of MedicineAomoriJapan
| | - Yasuhisa Murai
- Department of Gastroenterology and HematologyHirosaki University Graduate School of MedicineAomoriJapan
| | - Yohei Sawada
- Department of Gastroenterology and HematologyHirosaki University Graduate School of MedicineAomoriJapan
| | - Tetsuya Tatsuta
- Department of Gastroenterology and HematologyHirosaki University Graduate School of MedicineAomoriJapan
| | - Keisuke Hasui
- Department of Gastroenterology and HematologyHirosaki University Graduate School of MedicineAomoriJapan
| | - Hiroto Hiraga
- Department of Gastroenterology and HematologyHirosaki University Graduate School of MedicineAomoriJapan
| | - Daisuke Chinda
- Department of Gastroenterology and HematologyHirosaki University Graduate School of MedicineAomoriJapan
| | - Tatsuya Mikami
- Department of Preemptive MedicineHirosaki University Graduate School of MedicineAomoriJapan
| | - Phawinee Subsomwong
- Department of Microbiology and ImmunologyHirosaki University Graduate School of MedicineAomoriJapan
| | - Krisana Asano
- Department of Microbiology and ImmunologyHirosaki University Graduate School of MedicineAomoriJapan
| | - Akio Nakane
- Department of Biopolymer and Health ScienceHirosaki University Graduate School of MedicineAomoriJapan
| | - Shinsaku Fukuda
- Department of Gastroenterology and HematologyHirosaki University Graduate School of MedicineAomoriJapan
| | - Hirotake Sakuraba
- Department of Gastroenterology and HematologyHirosaki University Graduate School of MedicineAomoriJapan
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Zhou D, Nakamura M, Sawada Y, Ono T, Hirashima H, Iramina H, Adachi T, Fujimoto T, Mizowaki T. Development of independent dose verification plugin using Eclipse scripting API for brachytherapy. J Radiat Res 2023; 64:180-185. [PMID: 36214326 PMCID: PMC9855340 DOI: 10.1093/jrr/rrac063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 08/14/2022] [Indexed: 06/16/2023]
Abstract
In this study, an independent dose verification plugin (DVP) using the Eclipse Scripting Application Programming Interface (ESAPI) for brachytherapy was developed. The DVP was based on the general 2D formalism reported in AAPM-TG43U1. The coordinate and orientation of each source position were extracted from the translation matrix acquired from the treatment planning system (TPS), and the distance between the source and verification point (r) was calculated. Moreover, the angles subtended by the center-tip and tip-tip of the hypothetical line source with respect to the verification point (θ and β) were calculated. With r, θ, β and the active length of the source acquired from the TPS, the geometry function was calculated. As the TPS calculated the radial dose function, g(r), and 2D anisotropy function, F(r,θ), by interpolating and extrapolating the corresponding table stored in the TPS, the DVP calculated g(r) and F(r,θ) independently from equations fitted with the Monte Carlo data. The relative deviation of the fitted g(r) and F(r,θ) for the GammaMed Plus HDR 192Ir source was 0.5% and 0.9%, respectively. The acceptance range of the relative dose difference was set to ±1.03% based on the relative deviation between the fitted functions and Monte Carlo data, and the linear error propagation law. For 64 verification points from sixteen plans, the mean of absolute values of the relative dose difference was 0.19%. The standard deviation (SD) of the relative dose difference was 0.17%. The DVP maximizes efficiency and minimizes human error for the brachytherapy plan check.
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Affiliation(s)
- Dejun Zhou
- Department of Information Technology and Medical Engineering, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan
| | - Mitsuhiro Nakamura
- Corresponding author. Department of Information Technology and Medical Engineering, Human Health Sciences, Graduate School of Medicine, Kyoto University, 53 Kawaharacho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan. Tel: +81-75-751-4176; E-mail:
| | - Yohei Sawada
- Division of Clinical Radiology Service, Kyoto University Hospital, Kyoto 606-8507, Japan
| | - Tomohiro Ono
- Department of Radiation Oncology and Image-Applied Therapy, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan
| | - Hideaki Hirashima
- Department of Radiation Oncology and Image-Applied Therapy, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan
| | - Hiraku Iramina
- Department of Radiation Oncology and Image-Applied Therapy, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan
| | - Takanori Adachi
- Department of Radiation Oncology and Image-Applied Therapy, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan
| | - Takahiro Fujimoto
- Division of Clinical Radiology Service, Kyoto University Hospital, Kyoto 606-8507, Japan
| | - Takashi Mizowaki
- Department of Radiation Oncology and Image-Applied Therapy, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan
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Sawada Y, Kimura S, Watanabe K, Yamaguchi Y, Arima T, Kimura T. Nonreciprocal Directional Dichroism in Magnetoelectric Spin Glass. Phys Rev Lett 2022; 129:217201. [PMID: 36461975 DOI: 10.1103/physrevlett.129.217201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 08/29/2022] [Accepted: 10/18/2022] [Indexed: 06/17/2023]
Abstract
Optical absorption spectra in the visible and near-infrared light were measured for magnetoelectric spin glass Ni_{0.4}Mn_{0.6}TiO_{3} under various field-cooled conditions. Despite the absence of long-range magnetic-dipole order, this spin-glass system exhibits nonreciprocal directional dichroism (NDD) at zero external field after a magnetoelectric field-cooled procedure. This result is distinct from previous studies on NDD in systems with magnetic toroidal moments induced either by long-range magnetic-dipole order or by applying crossed electric and magnetic fields. The present Letter conclusively demonstrates that the observed NDD originates from magnetoelectrically induced ferroic order of magnetic toroidal moments without conventional magnetic-dipole order.
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Affiliation(s)
- Y Sawada
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - S Kimura
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - K Watanabe
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - Y Yamaguchi
- Division of Materials Physics, Graduate School of Engineering Science, Osaka University, Toyonaka 560-8531, Japan
| | - T Arima
- Department of Advanced Materials Science, University of Tokyo, Kashiwa 277-8561, Japan
| | - T Kimura
- Department of Advanced Materials Science, University of Tokyo, Kashiwa 277-8561, Japan
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Yanagi N, Satoh H, Sawada Y. Do fathers have sufficient knowledge to administer medicine to children correctly? Eur J Public Health 2022. [DOI: 10.1093/eurpub/ckac130.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Recently, the father's involvement in childcare is increasing in Japan. Inappropriate use of medication for children at home has been reported worldwide, however, the most responsible person was likely to be the mother. We aimed to compare the knowledge related to administering medication to children between fathers and mothers among Japanese parents.
Methods
An online survey regarding medication administration to children was conducted in March 2022. Parents living with preschool children were recruited and categorized by four factors: sex (fathers and mothers), age of children, regular medication, and the difficulty level in giving medicine to their own children. The cross-sectional data were collected for each category. The knowledge related to administering medication to children was measured using ten statements such as “Children can be given a reduced dose of adult medicine” using a 5-point Likert scale. The answer “disagree” was defined as correct understanding and was compared between fathers and mothers (Chi-square test).
Results
The participants were 145 fathers and 128 mothers. The percentage of fathers who answered all questions correctly or all questions incorrectly was 9.0% (mothers = 13.3%) and 25.5% (mothers = 13.3%) respectively. Each statement was answered correctly by fathers 20.0-57.9% and by mothers 25.8-71.9% and fathers were less likely to have the correct knowledge than mothers (6 items, p < 0.05). The biggest difference between those two groups was the statement of “Children should be given more than the proper dose for rapid effect”. Furthermore, the fathers having some difficulties in giving medicine had lower awareness about appropriate medication use than fathers having no difficulties.
Conclusions
Fathers were more likely to have lower knowledge related to administering medication to children than mothers. Medical professionals like pharmacists will need to support fathers.
Key messages
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Affiliation(s)
- N Yanagi
- Graduate School of Pharmaceutical Sciences, University of Tokyo , Tokyo, Japan
| | - H Satoh
- Graduate School of Pharmaceutical Sciences, University of Tokyo , Tokyo, Japan
| | - Y Sawada
- Graduate School of Pharmaceutical Sciences, University of Tokyo , Tokyo, Japan
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Kikuchi H, Sakuraba H, Akemoto Y, Hosoi K, Murai Y, Hoshi K, Fukutoku Y, Asari T, Sawada Y, Hasui K, Tatsuta T, Hiraga H, Chinda D, Mikami T, Fukuda S. Endoscopic and histopathologic features of Anti‐PD‐1‐related collagenous colitis. DEN Open 2022; 2:e92. [PMID: 35310729 PMCID: PMC8828179 DOI: 10.1002/deo2.92] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 12/01/2021] [Accepted: 12/25/2021] [Indexed: 11/22/2022]
Abstract
Objectives Cancer patients treated with immune checkpoint inhibitors occasionally show persistent diarrhea accompanied by endoscopic features of ulcerative colitis. The endoscopic mucosal inflammation may appear mild in some patients compared to the clinical severity, which can make choosing a treatment challenging. In this study, we evaluated the factors that support the continuation of chemotherapy by assessing the endoscopic and histopathological characteristics of patients who experienced diarrhea after immune checkpoint inhibitor administration. Methods This study included eight patients who were diagnosed with collagenous colitis based on pathological assessments. We retrospectively investigated these patients’ backgrounds, laboratory data, and computed tomography images that were extracted from their medical records. We also summarized their endoscopic and pathologic findings. Results All eight patients were being treated with anti‐programmed cell death‐1/programmed cell death‐ligand 1 therapeutic agents and had a recent history of oral proton pump inhibitor therapy. The anti‐programmed cell death‐1‐related collagenous colitis in these cases was characterized by endoscopically mild mucosal inflammation, high fecal calprotectin levels, and a lower frequency of intestinal wall thickening on computed tomography. Histological assessments showed CD8+ lymphocytes predominantly infiltrating the lamina propria and crypts of the colonic mucosa. Suspending the proton pump inhibitor therapy relieved the patients’ symptoms and allowed the continuation of the anti‐programmed cell death‐1/programmed cell death‐ligand 1 therapy. Conclusions Anti‐programmed cell death‐1‐related collagenous colitis is reversible; appropriate diagnosis of adverse events is crucial for the continuation of immune checkpoint inhibitor therapy.
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Affiliation(s)
- Hidezumi Kikuchi
- Department of Gastroenterology and Hematology Hirosaki University Graduate School of Medicine Aomori Japan
- Department of Community Medicine Hirosaki University Graduate School of Medicine Aomori Japan
| | - Hirotake Sakuraba
- Department of Gastroenterology and Hematology Hirosaki University Graduate School of Medicine Aomori Japan
| | - Yui Akemoto
- Department of Anatomic Pathology Hirosaki University Hospital Aomori Japan
| | - Kazuhiro Hosoi
- Department of Pharmacy Hirosaki University Hospital Aomori Japan
| | - Yasuhisa Murai
- Department of Gastroenterology and Hematology Hirosaki University Graduate School of Medicine Aomori Japan
| | - Kentaro Hoshi
- Department of Gastroenterology and Hematology Hirosaki University Graduate School of Medicine Aomori Japan
| | - Yukari Fukutoku
- Department of Gastroenterology and Hematology Hirosaki University Graduate School of Medicine Aomori Japan
| | - Taka Asari
- Department of Gastroenterology and Hematology Hirosaki University Graduate School of Medicine Aomori Japan
| | - Yohei Sawada
- Department of Gastroenterology and Hematology Hirosaki University Graduate School of Medicine Aomori Japan
| | - Keisuke Hasui
- Department of Gastroenterology and Hematology Hirosaki University Graduate School of Medicine Aomori Japan
| | - Tetsuya Tatsuta
- Department of Gastroenterology and Hematology Hirosaki University Graduate School of Medicine Aomori Japan
| | - Hiroto Hiraga
- Department of Gastroenterology and Hematology Hirosaki University Graduate School of Medicine Aomori Japan
| | - Daisuke Chinda
- Department of Gastroenterology and Hematology Hirosaki University Graduate School of Medicine Aomori Japan
| | - Tatsuya Mikami
- Innovation Center for Health Promotion Hirosaki University Graduate School of Medicine Aomori Japan
| | - Shinsaku Fukuda
- Department of Gastroenterology and Hematology Hirosaki University Graduate School of Medicine Aomori Japan
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10
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Yanagi N, Satoh H, Sawada Y. Awareness of knowledge related to administering medication for children by mothers among pharmacists. Eur J Public Health 2021. [DOI: 10.1093/eurpub/ckab165.457] [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: 11/12/2022] Open
Abstract
Abstract
Background
Inappropriate medication use for children by caregivers such as mothers and nursery staff has been reported in Japan. The pharmacists have the responsibility to support adequate medication administration and should consult effectively. However, it is not clear how much pharmacists are aware of the knowledge of medication use by caregivers. This study aimed to examine the knowledge related to administering medication for children among mothers and nursery staff and to evaluate the awareness of that understanding among pharmacists.
Methods
Three online surveys involving 600 mothers living with nursery school children, 558 nursery staff at nursery schools, and 584 pharmacists in Japan were conducted separately (Cross-sectional data, in 2019/2021). Ten statements about the knowledge related to administering medication for children such as “You could give the medicine that has been prescribed before if similar symptoms are shown”, “You should give children the medicine using favorite beverages such as milk and juice, regardless of the kind of medicine” were shown and measured using a 5-point Likert scale. The answer: “disagree”, was considered as correct understanding. The pharmacists were asked how much they think mothers/nursery staff answered correctly using a 5-point Likert scale.
Results
The proportion of correct answers for ten statements by mothers and nursery staff were 35.8%-76.0% and 43.0%-69.9%, respectively. Most answers from pharmacists were in the category range of 40%-59%. Only 11.5%-33.0% of pharmacists chose the correct category in each of ten items with mothers' answers and 24.0%-83.4% of them had lower awareness.
Conclusions
Overall, the pharmacists were less likely to be aware of the mothers'/nursery staff members' knowledge related to administering medication. The pharmacists need to instruct mothers to administer medication after confirming their understanding at the pharmacy.
Key messages
The awareness of knowledge related to administering medication for children by mothers and nursery staff among pharmacists was lower than the answers. The pharmacists need to instruct mothers to administer medication at the pharmacy after confirming their understanding of medication use.
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Affiliation(s)
- N Yanagi
- Graduate School of Pharmaceutical Sciences, University of Tokyo, Tokyo, Japan
| | - H Satoh
- Graduate School of Pharmaceutical Sciences, University of Tokyo, Tokyo, Japan
- Graduate School of Interdisciplinary Information Studies, University of Tokyo, Tokyo, Japan
| | - Y Sawada
- Graduate School of Pharmaceutical Sciences, University of Tokyo, Tokyo, Japan
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11
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Sawada Y, Nakatsuji T, Dokoshi T, Kulkarni N, Jones J, Sen G, Liggins M, Gallo R. 337 Innate immune tolerance of the epidermis is mediated by epigenetic regulation of MAP2K3. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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12
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Yanagi N, Satoh H, Sawada Y. Association between maternal factors and appropriate medication for nursery school children in Japan. Eur J Public Health 2019. [DOI: 10.1093/eurpub/ckz186.176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Inappropriate medication use for children by caregivers has been reported in Japan. We focused on the factors which could be associated with health literacy (HL) and knowledge of medication (KM). We aimed to examine the association between appropriate use for nursery school children and maternal socioeconomic status (SES) or behavior related to medication adherence among mothers in Japan.
Methods
The data regarding the conditions of medication for children (aged from six months to six years old) at home and in nursery school by the online survey from April to May 2019 was used. Maternal SES, such as education, occupational status, and economic conditions, were asked via a self-administered questionnaire. Maternal behaviors were measured using a 5-point Likert scale and classified into two groups. HL and KM were scored and divided into two categories. Appropriate medication use was evaluated using a 5-point Likert scale for the statement “I give my child medicine as per instructions,” and the answers were classified into two groups. Poisson regression was employed to investigate the association. Age, maternal SES, chronic disease of children, birth order, HL, and KM were used as covariates.
Results
A total of 233 (38.8%) of 600 mothers aged 24-48 years, reported appropriate medication use for children. None of the maternal SES was statistically significant. After adjustment, the individuals, who consent to prescribed medications for children, were 2.16 times (95% confidence interval [CI]:1.64-2.86) more likely to use medicine appropriately compared with their counterparts. ’To be able to consult with pharmacists’ were also statistically significant (Prevalence Ratio=2.14, 95% CI:1.63-2.81).
Conclusions
The mothers, who consent to prescribed medications for children, who consult with pharmacists were more likely to use medicine appropriately. Community pharmacists could support those to improve their skills.
Key messages
The maternal behaviors related to adherence were associated with appropriate medication for children among Japanese mothers, although none of the maternal SES was statistically significant. Community pharmacists could support mothers and contribute appropriate medical treatment for children.
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Affiliation(s)
- N Yanagi
- Laboratory of Drug Lifetime Management, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - H Satoh
- Laboratory of Drug Lifetime Management, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
- Interfaculty Initiative in Information Studies, Graduate School of Interdisciplinary Information Studies, The University of Tokyo, Tokyo, Japan
| | - Y Sawada
- Laboratory of Drug Lifetime Management, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
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13
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Toride K, Sawada Y, Aida K, Koike T. Toward High-Resolution Soil Moisture Monitoring by Combining Active-Passive Microwave and Optical Vegetation Remote Sensing Products with Land Surface Model. Sensors (Basel) 2019; 19:s19183924. [PMID: 31514458 PMCID: PMC6767016 DOI: 10.3390/s19183924] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 09/04/2019] [Accepted: 09/09/2019] [Indexed: 12/03/2022]
Abstract
The assimilation of radiometer and synthetic aperture radar (SAR) data is a promising recent technique to downscale soil moisture products, yet it requires land surface parameters and meteorological forcing data at a high spatial resolution. In this study, we propose a new downscaling approach, named integrated passive and active downscaling (I-PAD), to achieve high spatial and temporal resolution soil moisture datasets over regions without detailed soil data. The Advanced Microwave Scanning Radiometer (AMSR-E) and Phased Array-type L-band SAR (PALSAR) data are combined through a dual-pass land data assimilation system to obtain soil moisture at 1 km resolution. In the first step, fine resolution model parameters are optimized based on fine resolution PALSAR soil moisture and moderate-resolution imaging spectroradiometer (MODIS) leaf area index data, and coarse resolution AMSR-E brightness temperature data. Then, the 25 km AMSR-E observations are assimilated into a land surface model at 1 km resolution with a simple but computationally low-cost algorithm that considers the spatial resolution difference. Precipitation data are used as the only inputs from ground measurements. The evaluations at the two lightly vegetated sites in Mongolia and the Little Washita basin show that the time series of soil moisture are improved at most of the observation by the assimilation scheme. The analyses reveal that I-PAD can capture overall spatial trends of soil moisture within the coarse resolution radiometer footprints, demonstrating the potential of the algorithm to be applied over data-sparse regions. The capability and limitation are discussed based on the simple optimization and assimilation schemes used in the algorithm.
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Affiliation(s)
- Kinya Toride
- Institute of Industrial Science, The University of Tokyo, Kashiwa, Chiba 277-8574, Japan.
| | - Yohei Sawada
- Institute of Engineering Innovation, The University of Tokyo, Bunkyo-ku, Tokyo 113-8654, Japan.
| | - Kentaro Aida
- International Centre for Water Hazard and Risk Management (ICHARM), Tsukuba, Ibaraki 300-2621, Japan.
| | - Toshio Koike
- International Centre for Water Hazard and Risk Management (ICHARM), Tsukuba, Ibaraki 300-2621, Japan.
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14
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Miyazaki T, Zhao Z, Ichihara Y, Yoshino D, Imamura T, Sawada K, Hayano S, Kamioka H, Mori S, Hirata H, Araki K, Kawauchi K, Shigemoto K, Tanaka S, Bonewald LF, Honda H, Shinohara M, Nagao M, Ogata T, Harada I, Sawada Y. Mechanical regulation of bone homeostasis through p130Cas-mediated alleviation of NF-κB activity. Sci Adv 2019; 5:eaau7802. [PMID: 31579816 PMCID: PMC6760935 DOI: 10.1126/sciadv.aau7802] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 09/03/2019] [Indexed: 05/07/2023]
Abstract
Mechanical loading plays an important role in bone homeostasis. However, molecular mechanisms behind the mechanical regulation of bone homeostasis are poorly understood. We previously reported p130Cas (Cas) as a key molecule in cellular mechanosensing at focal adhesions. Here, we demonstrate that Cas is distributed in the nucleus and supports mechanical loading-mediated bone homeostasis by alleviating NF-κB activity, which would otherwise prompt inflammatory processes. Mechanical unloading modulates Cas distribution and NF-κB activity in osteocytes, the mechanosensory cells in bones. Cas deficiency in osteocytes increases osteoclastic bone resorption associated with NF-κB-mediated RANKL expression, leading to osteopenia. Upon shear stress application on cultured osteocytes, Cas translocates into the nucleus and down-regulates NF-κB activity. Collectively, fluid shear stress-dependent Cas-mediated alleviation of NF-κB activity supports bone homeostasis. Given the ubiquitous expression of Cas and NF-κB together with systemic distribution of interstitial fluid, the Cas-NF-κB interplay may also underpin regulatory mechanisms in other tissues and organs.
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Affiliation(s)
- T. Miyazaki
- Department of Geriatric Medicine, Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Tokyo 173-0015, Japan
- Department of Orthopaedic Surgery, Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Tokyo 173-0015, Japan
- Corresponding author. (T.M.); (Y.S.)
| | - Z. Zhao
- Mechanobiology Institute, National University of Singapore, Level 10, T-Lab, 5A Engineering Drive 1, Singapore 117411, Singapore
- Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore 117543, Singapore
| | - Y. Ichihara
- Department of Rehabilitation for Motor Functions, Research Institute, National Rehabilitation Center for Persons with Disabilities, Tokorozawa, Saitama 359-8555, Japan
- Division of Pharmacology, Faculty of Medicine, Tottori University, Yonago, Tottori 683-8503, Japan
| | - D. Yoshino
- Mechanobiology Institute, National University of Singapore, Level 10, T-Lab, 5A Engineering Drive 1, Singapore 117411, Singapore
- Creative Interdisciplinary Research Division, Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - T. Imamura
- Division of Pharmacology, Faculty of Medicine, Tottori University, Yonago, Tottori 683-8503, Japan
| | - K. Sawada
- Mechanobiology Institute, National University of Singapore, Level 10, T-Lab, 5A Engineering Drive 1, Singapore 117411, Singapore
- Laboratory for Mechanical Medicine, Nadogaya Research Institute, Nadogaya Hospital, Kashiwa, Chiba 277-0032, Japan
| | - S. Hayano
- Department of Orthodontics, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Okayama 700-8525, Japan
| | - H. Kamioka
- Department of Orthodontics, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Okayama 700-8525, Japan
| | - S. Mori
- Department of Geriatric Medicine, Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Tokyo 173-0015, Japan
| | - H. Hirata
- Mechanobiology Institute, National University of Singapore, Level 10, T-Lab, 5A Engineering Drive 1, Singapore 117411, Singapore
| | - K. Araki
- Mechanobiology Institute, National University of Singapore, Level 10, T-Lab, 5A Engineering Drive 1, Singapore 117411, Singapore
| | - K. Kawauchi
- Mechanobiology Institute, National University of Singapore, Level 10, T-Lab, 5A Engineering Drive 1, Singapore 117411, Singapore
| | - K. Shigemoto
- Department of Geriatric Medicine, Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Tokyo 173-0015, Japan
| | - S. Tanaka
- Department of Orthopaedic Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
| | - L. F. Bonewald
- Indiana Center for Musculoskeletal Health, School of Medicine, Indiana University, Indianapolis, IN 46202, USA
| | - H. Honda
- Field of Human Disease Models, Institute of Laboratory Animals, Tokyo Women’s Medical University, Tokyo 162-8666, Japan
| | - M. Shinohara
- Department of Rehabilitation for Motor Functions, Research Institute, National Rehabilitation Center for Persons with Disabilities, Tokorozawa, Saitama 359-8555, Japan
- Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency (JST), Saitama 332-0012, Japan
| | - M. Nagao
- Department of Rehabilitation for Motor Functions, Research Institute, National Rehabilitation Center for Persons with Disabilities, Tokorozawa, Saitama 359-8555, Japan
| | - T. Ogata
- Department of Rehabilitation for Motor Functions, Research Institute, National Rehabilitation Center for Persons with Disabilities, Tokorozawa, Saitama 359-8555, Japan
| | - I. Harada
- Laboratory for Mechanical Medicine, Nadogaya Research Institute, Nadogaya Hospital, Kashiwa, Chiba 277-0032, Japan
| | - Y. Sawada
- Mechanobiology Institute, National University of Singapore, Level 10, T-Lab, 5A Engineering Drive 1, Singapore 117411, Singapore
- Department of Rehabilitation for Motor Functions, Research Institute, National Rehabilitation Center for Persons with Disabilities, Tokorozawa, Saitama 359-8555, Japan
- Laboratory for Mechanical Medicine, Nadogaya Research Institute, Nadogaya Hospital, Kashiwa, Chiba 277-0032, Japan
- Department of Clinical Research, National Rehabilitation Center for Persons with Disabilities, Tokorozawa, Saitama 359-8555, Japan
- Corresponding author. (T.M.); (Y.S.)
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15
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Aihara M, Sawada Y, Ueno K, Morimoto S, Yoshida Y, Serres MD, Copper HA, Wegner RH. Visualization of von Willebrand Factor Multimers by Immunoenzymatic Stain Using Avidin-Biotin Peroxidase Complex. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1661533] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
SummaryA technique for the detection of von Willebrand factor multimers separated by discontinuous SDS agarose electrophoresis has been developed using non-radioactive com-v pounds. The multimeric patterns were visualized by monospecific anti-human vWF:Ag followed by incubation with biotinylated antibody. After addition of avidin-biotin-peroxidase complex, the peroxidase activitiy was detected by 4-chloro-l-naphthol, giving sharp bands with a clear background.By this method, the differences of vWF : Ag multimers could be easily observed between normal plasma and the plasmas from variant type vWD (IIA, IIB, platelet-type). Large and intermediate multimers were absent in the plasma with vWD type IIA, while only large multimers were absent in the plasma with vWD IIB and platelet-type. The absence of large multimers was also observed in two commercial F VIII preparations having the ratio of vWF/vWF : Ag 0.18 and 0.63. The preparation with the ratio of 0.63 showed the presence of larger intermediate multimers.Electrophoresis in SDS 1.5% agarose gel revealed triplet structure of each small multimer, and a relative increase of the smallest subband was observed in vWD IIA plasma, platelet-type vWD plasma and commercial F VIII preparations.The procedures described are easy and safe to perform and are useful for screening or classifying cases with vWD in general laboratories.
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Affiliation(s)
- M Aihara
- The First Department of Internal Medicine, Hirosaki University School of Medicine, Hirosaki, Japan
| | - Y Sawada
- The First Department of Internal Medicine, Hirosaki University School of Medicine, Hirosaki, Japan
| | - K Ueno
- The First Department of Internal Medicine, Hirosaki University School of Medicine, Hirosaki, Japan
| | - S Morimoto
- The First Department of Internal Medicine, Hirosaki University School of Medicine, Hirosaki, Japan
| | - Y Yoshida
- The First Department of Internal Medicine, Hirosaki University School of Medicine, Hirosaki, Japan
| | - M de Serres
- The Department of Pathology and Center for Thrombosis and Hemostasis, The University of North Carolina, Chapel Hill, NC, USA
| | - H A Copper
- The Department of Pathology and Center for Thrombosis and Hemostasis, The University of North Carolina, Chapel Hill, NC, USA
| | - R H Wegner
- The Department of Pathology and Center for Thrombosis and Hemostasis, The University of North Carolina, Chapel Hill, NC, USA
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16
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Kawaguchi S, Yoshimura T, Sakuraba H, Asari T, Sawada Y, Araki Y, Kikuchi K, Wada T, Kusumi T, Fukuda S. Vimentin-positive gastric adenocarcinoma arising in a hyperplastic polyp. Clin J Gastroenterol 2018; 11:245-250. [PMID: 29417386 DOI: 10.1007/s12328-018-0828-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 01/30/2018] [Indexed: 11/27/2022]
Abstract
We report a case of vimentin-positive early gastric adenocarcinoma arising in a hyperplastic polyp (HP). A 72-year-old Japanese man was admitted for the detailed examination of a gastric polyp. He had a subtotal gastrectomy due to acute abdomen 12 years ago. Upper endoscopy revealed a pedunculated polyp measuring approximately 2 cm on the greater curvature of upper body of the remnant stomach. Magnifying endoscopy revealed that the microsurface pattern was irregular and partially absent accompanied with irregular microvessels at the upper end of the polyp. We speculated that the lesion was an adenocarcinoma arising in the HP. Endoscopic submucosal dissection (ESD) was performed. Histological examination of the ESD specimen revealed that the lesion consisted of well- to poorly differentiated adenocarcinoma at the protruding lesion and foveolar hyperplastic epithelia at the base of the polyp. Immunohistochemically, most of tumor cells that comprised poorly-differentiated adenocarcinoma were positive for both cytokeratin and vimentin. Although carcinomas have occasionally been found in HPs, the histological features of the present case are considered extremely unusual. To the best of our knowledge, this is the first case of vimentin-positive early gastric carcinoma arising in a HP.
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Affiliation(s)
- Shogo Kawaguchi
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan.
| | - Tetsuro Yoshimura
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
- Department of Gastroenterology, Aomori City Hospital, Aomori, Japan
| | - Hirotake Sakuraba
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Taka Asari
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Yohei Sawada
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Yasumitsu Araki
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
- Department of Gastroenterology, Aomori City Hospital, Aomori, Japan
| | - Koji Kikuchi
- Department of Gastroenterology, Aomori City Hospital, Aomori, Japan
| | - Toyohito Wada
- Department of Gastroenterology, Aomori City Hospital, Aomori, Japan
| | - Tomomi Kusumi
- Department of Pathology, Aomori City Hospital, Aomori, Japan
| | - Shinsaku Fukuda
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
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17
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Nakamura M, Sawada Y, Mashima E, Kubo R, Yamaguchi T, Haruyama S, Yoshioka M, Okada E. 422 Galectin-7 suppresses the erythema and cytokine productions in Nc/Nga mice, an atopic dermatitis model. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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18
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Oda T, Sawada Y, Okada E, Yamaguchi T, Ohmori S, Haruyama S, Yoshioka M, Nakamura M. Stevens-Johnson Syndrome After Influenza Vaccine Injection. J Investig Allergol Clin Immunol 2017; 27:274-275. [PMID: 28731419 DOI: 10.18176/jiaci.0169] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- T Oda
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu City, Fukuoka, Japan
| | - Y Sawada
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu City, Fukuoka, Japan
| | - E Okada
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu City, Fukuoka, Japan
| | - T Yamaguchi
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu City, Fukuoka, Japan
| | - S Ohmori
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu City, Fukuoka, Japan
| | - S Haruyama
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu City, Fukuoka, Japan
| | - M Yoshioka
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu City, Fukuoka, Japan
| | - M Nakamura
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu City, Fukuoka, Japan
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19
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Sawada Y, Toma M, Homma Y, Sato W, Furuta T, Yamoto S, Hatayama A. Modeling of Impurity Classical/Neoclassical Transport by Monte-Carlo Binary Collision Model. Fusion Science and Technology 2017. [DOI: 10.13182/fst13-a16952] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Y. Sawada
- Graduate school of Science and Technology, Keio University3-14-1, Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - M. Toma
- Graduate school of Science and Technology, Keio University3-14-1, Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Y. Homma
- Graduate school of Science and Technology, Keio University3-14-1, Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - W. Sato
- Graduate school of Science and Technology, Keio University3-14-1, Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - T. Furuta
- Graduate school of Science and Technology, Keio University3-14-1, Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - S. Yamoto
- Graduate school of Science and Technology, Keio University3-14-1, Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - A. Hatayama
- Graduate school of Science and Technology, Keio University3-14-1, Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
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20
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Furuta T, Takeda H, Toma M, Sato W, Homma Y, Sawada Y, Nakashima Y, Hatayama A. Modeling of Plasma Transport in the Magnetic Mirror Configuration (GAMMA 10). Fusion Science and Technology 2017. [DOI: 10.13182/fst13-a16971] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Furuta
- Graduate school of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kouhoku-ku, Yokohama 223-8522, Japan
| | - H. Takeda
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Toma
- Graduate school of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kouhoku-ku, Yokohama 223-8522, Japan
| | - W. Sato
- Graduate school of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kouhoku-ku, Yokohama 223-8522, Japan
| | - Y. Homma
- Graduate school of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kouhoku-ku, Yokohama 223-8522, Japan
| | - Y. Sawada
- Graduate school of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kouhoku-ku, Yokohama 223-8522, Japan
| | - Y. Nakashima
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - A. Hatayama
- Graduate school of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kouhoku-ku, Yokohama 223-8522, Japan
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21
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Affiliation(s)
- K. Kageyama
- Health Science, Tokyo University of Technology, Tokyo, Japan,
| | - Y. Sawada
- Nihon Fukushi University, Nagoya, Japan,
| | - M. Ono
- Kansai University of Social Welfare, Ako, Japan
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22
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Sawada Y, Kageyama K, Ono M. FACTORS THAT INFLUENCE POSITIVE ASPECTS OF CAREGIVING AMONG JAPANESE CAREGIVERS. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.2939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Y. Sawada
- Nihon Fukushi University, Nagoya, Japan,
| | - K. Kageyama
- Tokyo University of Technology, Tokyo, Japan,
| | - M. Ono
- KANSAI UNIVERSITY of SOCIAL WELFARE, Ako, Japan
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23
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Mashima E, Sawada Y, Yamaguchi T, Ohmori S, Haruyama S, Yoshioka M, Okada E, Nakamura M. Eosinophilic Cellulitis Possibly Due to Mosquito Bite With High IL-5 Production. J Investig Allergol Clin Immunol 2017; 27:149-150. [PMID: 28398209 DOI: 10.18176/jiaci.0142] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- E Mashima
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Y Sawada
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - T Yamaguchi
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - S Ohmori
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - S Haruyama
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - M Yoshioka
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - E Okada
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - M Nakamura
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
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24
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Oda T, Sawada Y, Yamaguchi T, Ohmori S, Omoto D, Haruyama S, Yoshioka M, Okada E, Nakamura M. Psoriatic Erythroderma Caused by Terbinafine: A Possible Pathogenetic Role for IL-23. J Investig Allergol Clin Immunol 2017; 27:63-64. [PMID: 28211348 DOI: 10.18176/jiaci.0116] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- T Oda
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyūshū, Japan
| | - Y Sawada
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyūshū, Japan
| | - T Yamaguchi
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyūshū, Japan
| | - S Ohmori
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyūshū, Japan
| | - D Omoto
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyūshū, Japan
| | - S Haruyama
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyūshū, Japan
| | - M Yoshioka
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyūshū, Japan
| | - E Okada
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyūshū, Japan
| | - M Nakamura
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyūshū, Japan
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25
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Oda T, Sawada Y, Yamaguchi T, Ohmori S, Haruyama S, Yoshioka M, Okada E, Nakamura M. Drug Eruption Caused by Rosuvastatin. J Investig Allergol Clin Immunol 2017; 27:140-141. [PMID: 28398205 DOI: 10.18176/jiaci.0136] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- T Oda
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Y Sawada
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - T Yamaguchi
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - S Ohmori
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - S Haruyama
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - M Yoshioka
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - E Okada
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - M Nakamura
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
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26
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Fujitsuka N, Asakawa A, Morinaga A, Amitani MS, Amitani H, Katsuura G, Sawada Y, Sudo Y, Uezono Y, Mochiki E, Sakata I, Sakai T, Hanazaki K, Yada T, Yakabi K, Sakuma E, Ueki T, Niijima A, Nakagawa K, Okubo N, Takeda H, Asaka M, Inui A. Increased ghrelin signaling prolongs survival in mouse models of human aging through activation of sirtuin1. Mol Psychiatry 2016; 21:1613-1623. [PMID: 26830139 PMCID: PMC5078860 DOI: 10.1038/mp.2015.220] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Revised: 12/01/2015] [Accepted: 12/15/2015] [Indexed: 02/07/2023]
Abstract
Caloric restriction (CR) is known to retard aging and delay functional decline as well as the onset of diseases in most organisms. Ghrelin is secreted from the stomach in response to CR and regulates energy metabolism. We hypothesized that in CR ghrelin has a role in protecting aging-related diseases. We examined the physiological mechanisms underlying the ghrelin system during the aging process in three mouse strains with different genetic and biochemical backgrounds as animal models of accelerated or normal human aging. The elevated plasma ghrelin concentration was observed in both klotho-deficient and senescence-accelerated mouse prone/8 (SAMP8) mice. Ghrelin treatment failed to stimulate appetite and prolong survival in klotho-deficient mice, suggesting the existence of ghrelin resistance in the process of aging. However, ghrelin antagonist hastened death and ghrelin signaling potentiators rikkunshito and atractylodin ameliorated several age-related diseases with decreased microglial activation in the brain and prolonged survival in klotho-deficient, SAMP8 and aged ICR mice. In vitro experiments, the elevated sirtuin1 (SIRT1) activity and protein expression through the cAMP-CREB pathway was observed after ghrelin and ghrelin potentiator treatment in ghrelin receptor 1a-expressing cells and human umbilical vein endothelial cells. Furthermore, rikkunshito increased hypothalamic SIRT1 activity and SIRT1 protein expression of the heart in the all three mouse models of aging. Pericarditis, myocardial calcification and atrophy of myocardial and muscle fiber were improved by treatment with rikkunshito. Ghrelin signaling may represent one of the mechanisms activated by CR, and potentiating ghrelin signaling may be useful to extend health and lifespan.
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Affiliation(s)
- N Fujitsuka
- Department of Psychosomatic Internal Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan,Tsumura Research Laboratories, Tsumura, Ibaraki, Japan
| | - A Asakawa
- Department of Psychosomatic Internal Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - A Morinaga
- Department of Psychosomatic Internal Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - M S Amitani
- Department of Psychosomatic Internal Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - H Amitani
- Department of Psychosomatic Internal Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - G Katsuura
- Department of Psychosomatic Internal Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Y Sawada
- Division of Cancer Pathophysiology, National Cancer Center Research Institute, Tokyo, Japan
| | - Y Sudo
- Division of Cancer Pathophysiology, National Cancer Center Research Institute, Tokyo, Japan
| | - Y Uezono
- Division of Cancer Pathophysiology, National Cancer Center Research Institute, Tokyo, Japan
| | - E Mochiki
- Department of Digestive Tract and General Surgery, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - I Sakata
- Division of Life Science, Graduate School of Science and Engineering, Saitama University, Saitama, Japan
| | - T Sakai
- Division of Life Science, Graduate School of Science and Engineering, Saitama University, Saitama, Japan
| | - K Hanazaki
- Department of Surgery, Kochi Medical School, Kochi, Japan
| | - T Yada
- Department of Physiology, Jichi Medical University School of Medicine, Tochigi, Japan
| | - K Yakabi
- Department of Gastroenterology and Hepatology, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - E Sakuma
- Department of Integrative Anatomy, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - T Ueki
- Department of Integrative Anatomy, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - A Niijima
- Department of Physiology, Niigata University School of Medicine, Niigata, Japan
| | - K Nakagawa
- Pathophysiology and Therapeutics, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan
| | - N Okubo
- Pathophysiology and Therapeutics, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan
| | - H Takeda
- Pathophysiology and Therapeutics, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan,Hokkaido University Hospital Gastroenterological Medicine, Sapporo, Japan
| | - M Asaka
- Cancer Preventive Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - A Inui
- Department of Psychosomatic Internal Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan,Department of Psychosomatic Internal Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan. E-mail:
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27
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Kimura S, Kakihata K, Sawada Y, Watanabe K, Matsumoto M, Hagiwara M, Tanaka H. Ferroelectricity by Bose-Einstein condensation in a quantum magnet. Nat Commun 2016; 7:12822. [PMID: 27666875 PMCID: PMC5052672 DOI: 10.1038/ncomms12822] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Accepted: 08/04/2016] [Indexed: 11/09/2022] Open
Abstract
The Bose–Einstein condensation is a fascinating phenomenon, which results from quantum statistics for identical particles with an integer spin. Surprising properties, such as superfluidity, vortex quantization or Josephson effect, appear owing to the macroscopic quantum coherence, which spontaneously develops in Bose–Einstein condensates. Realization of Bose–Einstein condensation is not restricted in fluids like liquid helium, a superconducting phase of paired electrons in a metal and laser-cooled dilute alkali atoms. Bosonic quasi-particles like exciton-polariton and magnon in solids-state systems can also undergo Bose–Einstein condensation in certain conditions. Here, we report that the quantum coherence in Bose–Einstein condensate of the magnon quasi particles yields spontaneous electric polarization in the quantum magnet TlCuCl3, leading to remarkable magnetoelectric effect. Very soft ferroelectricity is realized as a consequence of the O(2) symmetry breaking by magnon Bose–Einstein condensation. The finding of this ferroelectricity will open a new window to explore multi-functionality of quantum magnets. Magnons, quantized spin excitations in magnetic materials, may undergo Bose-Einstein condensation into a macroscopic correlated quantum state at low temperature. Here, the authors demonstrate how magnon condensation in quantum magnet TlCuCl3 generates an electrical polarization.
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Affiliation(s)
- S Kimura
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - K Kakihata
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - Y Sawada
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - K Watanabe
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - M Matsumoto
- Department of Physics, Shizuoka University, Shizuoka 422-8529, Japan
| | - M Hagiwara
- Center for Advanced High Magnetic Field Science, Graduate School of Science, Osaka University, Toyonaka 560-0043, Japan
| | - H Tanaka
- Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551, Japan
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28
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Sawada Y, Honda T, Nakamura M, Kabashima K. 516 Non-steroidal anti-inflammatory drugs exacerbate cutaneous Th2 immune response via a prostaglandin E2-EP2 signaling in keratinocytes. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.02.553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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29
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Yasuo S, Kenichi Y, Ueno N, Arimoto A, Hosono M, Yoshikawa T, Toyokawa A, Kakeji Y, Tsai Y, Tsai C, Sul J, Lim M, Park J, Jang CE, Santilli O, Tripoloni D, Santilli H, Nardelli N, Greco A, Estevez M, Sakurai S, Ryu S, Cesana G, Ciccarese F, Uccelli M, Grava G, Castello G, Carrieri D, Legnani G, Olmi S, Naito M, Yamamoto H, Sawada Y, Mandai Y, Asano H, Ino H, Tsukuda K, Nagahama T, Ando M, Ami K, Arai K, Miladinovic M, Kitanovic A, Lechner M, Mayer F, Meissnitzer M, Fortsner R, Öfner D, Köhler G, Jäger T, Kumata Y, Fukushima R, Inaba T, Yaguchi Y, Horikawa M, Ogawa E, Katayama T, Kumar PS, Unal D, Caparlar C, Akkaya T, Mercan U, Kulacoglu H, Barreiro JJ, Baer IG, García LS, Cumplido PL, Florez LJG, Muñiz PF, Fujino K, Mita K, Ohta E, Takahashi K, Hashimoto M, Nagayasu K, Murabayashi R, Asakawa H, Koizumi K, Hayashi G, Ito H, Felberbauer F, Strobl S, Kristo I, Riss S, Prager G, El Komy H, El Gendi A, Nabil W, Karam M, El Kayal S, Chihara N, Suzuki H, Watanabe M, Uchida E, Chen T, Wang J, Wang H, Bouchiba N, Elbakary T, Ramadan A, Elakkad M, Berney C, Vlasov V, Babii I, Pidmurnyak O, Prystupa M, Asakage N, Molinari P, Contino E, Guzzetti L, Oggioni M, Sambuco M, Berselli M, Farassino L, Cocozza E, Crespi A, Ambrosoli A, Zhao Y. Topic: Inguinal Hernia - Unsolved problem in the daily practice. Hernia 2015; 19 Suppl 1:S293-304. [PMID: 26518826 DOI: 10.1007/bf03355374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- S Yasuo
- Department of Surgery. Social Welfare Organization Saiseikai Imperial Gift Foundation, Inc. Saiseikai Wakakusa Hospital, Yokohama, Japan
| | - Y Kenichi
- Department of Surgery. Social Welfare Organization Saiseikai Imperial Gift Foundation, Inc. Saiseikai Wakakusa Hospital, Yokohama, Japan
| | - N Ueno
- Department of General Surgery, Yodogawa Christian Hospital, Osaka, Japan
| | - A Arimoto
- Department of General Surgery, Takatsuki General Hospital, Takatsuki, Japan
| | - M Hosono
- Division of Gastrointestinal Surgery, Kobe University Hospital, Kobe, Japan
| | - T Yoshikawa
- Department of General Surgery, Takatsuki General Hospital, Takatsuki, Japan
| | - A Toyokawa
- Department of General Surgery, Yodogawa Christian Hospital, Osaka, Japan
| | - Y Kakeji
- Division of Gastrointestinal Surgery, Kobe University Hospital, Kobe, Japan
| | - Y Tsai
- Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taipei, Taiwan
| | - C Tsai
- Taichung Hospital, Ministry of Health and Welfare, Taichung, Taiwan
| | - J Sul
- Chungnam National University Hospital, Daejeon, South Korea
| | - M Lim
- Chungnam National University Hospital, Daejeon, South Korea
| | - J Park
- Chungnam National University Hospital, Daejeon, South Korea
| | | | - O Santilli
- Centro De Patologia Herniaria, Buenos Aires, Argentina
| | - D Tripoloni
- Centro De Patologia Herniaria, Buenos Aires, Argentina
| | - H Santilli
- Centro De Patologia Herniaria, Buenos Aires, Argentina
| | - N Nardelli
- Centro De Patologia Herniaria, Buenos Aires, Argentina
| | - A Greco
- Centro De Patologia Herniaria, Buenos Aires, Argentina
| | - M Estevez
- Centro De Patologia Herniaria, Buenos Aires, Argentina
| | - S Sakurai
- St. Luke's International Hospital, Tokyo, Japan
| | - S Ryu
- Samsung Changwon Hospital, Changwon-si, Gyeongsangnam-do, South Korea
| | - G Cesana
- School of General Surgery, University of Milan, Milan, Italy.,General and Oncologic Surgery Department, S. Marco Hospital, Zingonia, BG, Italy
| | - F Ciccarese
- School of General Surgery, University of Milan, Milan, Italy.,General and Oncologic Surgery Department, S. Marco Hospital, Zingonia, BG, Italy
| | - M Uccelli
- School of General Surgery, University of Milan, Milan, Italy.,General and Oncologic Surgery Department, S. Marco Hospital, Zingonia, BG, Italy
| | - G Grava
- School of General Surgery, University of Milan, Milan, Italy.,General and Oncologic Surgery Department, S. Marco Hospital, Zingonia, BG, Italy
| | - G Castello
- General and Oncologic Surgery Department, S. Marco Hospital, Zingonia, BG, Italy
| | - D Carrieri
- General and Oncologic Surgery Department, S. Marco Hospital, Zingonia, BG, Italy
| | - G Legnani
- General and Oncologic Surgery Department, S. Marco Hospital, Zingonia, BG, Italy
| | - S Olmi
- School of General Surgery, University of Milan, Milan, Italy.,General and Oncologic Surgery Department, S. Marco Hospital, Zingonia, BG, Italy
| | - M Naito
- Department of Surgery, Okayama Medical Center, Okayama, Japan
| | - H Yamamoto
- Department of Surgery, Okayama Medical Center, Okayama, Japan
| | - Y Sawada
- Himeji Daiichi Hospital, Himeji, Japan
| | - Y Mandai
- Okayama University Hospital, Okayama, Japan
| | - H Asano
- Okayama University Hospital, Okayama, Japan
| | - H Ino
- Okayama University Hospital, Okayama, Japan
| | - K Tsukuda
- Okayama University Hospital, Okayama, Japan
| | - T Nagahama
- Department of Surgery, Toshima Hospital, Tokyo, Japan
| | - M Ando
- Department of Surgery, Toshima Hospital, Tokyo, Japan
| | - K Ami
- Department of Surgery, Toshima Hospital, Tokyo, Japan
| | - K Arai
- Department of Surgery, Toshima Hospital, Tokyo, Japan
| | | | - A Kitanovic
- Surgery ward, General hospital, Krusevac, Serbia
| | - M Lechner
- Department of General Surgery, Paracelsus Medical University, Salzburg, Austria
| | - F Mayer
- Department of General Surgery, Paracelsus Medical University, Salzburg, Austria
| | - M Meissnitzer
- Department of Radiology, Paracelsus Medical University, Salzburg, Austria
| | - R Fortsner
- Department of Radiology, Paracelsus Medical University, Salzburg, Austria
| | - D Öfner
- Department of General Surgery, Paracelsus Medical University, Salzburg, Austria
| | - G Köhler
- Department of General Surgery, Sisters of Charity Hospital, Linz, Austria
| | - T Jäger
- Department of General Surgery, Paracelsus Medical University, Salzburg, Austria
| | - Y Kumata
- Department of Surgery, Teikyo University Hospital, Tokyo, Japan
| | - R Fukushima
- Department of Surgery, Teikyo University Hospital, Tokyo, Japan
| | - T Inaba
- Department of Surgery, Teikyo University Hospital, Tokyo, Japan
| | - Y Yaguchi
- Department of Surgery, Teikyo University Hospital, Tokyo, Japan
| | - M Horikawa
- Department of Surgery, Teikyo University Hospital, Tokyo, Japan
| | - E Ogawa
- Department of Surgery, Teikyo University Hospital, Tokyo, Japan
| | - T Katayama
- Department of Surgery, Teikyo University Hospital, Tokyo, Japan
| | - P S Kumar
- ESI-PGIMSR and Medical College, Bangalore, India
| | - D Unal
- Diskapi Teaching and Research Hospital, Ankara, Turkey
| | - C Caparlar
- Diskapi Teaching and Research Hospital, Ankara, Turkey
| | - T Akkaya
- Diskapi Teaching and Research Hospital, Ankara, Turkey
| | - U Mercan
- Diskapi Teaching and Research Hospital, Ankara, Turkey
| | - H Kulacoglu
- Diskapi Teaching and Research Hospital, Ankara, Turkey
| | | | | | | | | | | | | | - K Fujino
- Department of Surgery, New Tokyo Hospital, Matsudo, Japan
| | - K Mita
- Department of Surgery, New Tokyo Hospital, Matsudo, Japan
| | - E Ohta
- Department of Surgery, New Tokyo Hospital, Matsudo, Japan
| | - K Takahashi
- Department of Surgery, New Tokyo Hospital, Matsudo, Japan
| | - M Hashimoto
- Department of Surgery, New Tokyo Hospital, Matsudo, Japan
| | - K Nagayasu
- Department of Surgery, New Tokyo Hospital, Matsudo, Japan
| | - R Murabayashi
- Department of Surgery, New Tokyo Hospital, Matsudo, Japan
| | - H Asakawa
- Department of Surgery, New Tokyo Hospital, Matsudo, Japan
| | - K Koizumi
- Department of Surgery, New Tokyo Hospital, Matsudo, Japan
| | - G Hayashi
- Department of Surgery, New Tokyo Hospital, Matsudo, Japan
| | - H Ito
- Department of Surgery, New Tokyo Hospital, Matsudo, Japan
| | - F Felberbauer
- Div. of General Surgery, Dpt. of Surgery, Medical University of Vienna, Vienna, Austria
| | | | | | | | | | - H El Komy
- Faculty of medicine, Alexandria, Egypt
| | | | - W Nabil
- Faculty of medicine, Alexandria, Egypt
| | - M Karam
- Faculty of medicine, Alexandria, Egypt
| | | | - N Chihara
- Nippon Medical School, Musashikosugi Hospital, Institute of Gastroenterology, Kawasaki, Japan
| | - H Suzuki
- Nippon Medical School, Musashikosugi Hospital, Institute of Gastroenterology, Kawasaki, Japan
| | - M Watanabe
- Nippon Medical School, Musashikosugi Hospital, Institute of Gastroenterology, Kawasaki, Japan
| | - E Uchida
- Department of Surgery, Nippon Medical School, Tokyo, Japan
| | - T Chen
- Department of Biliary-pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - J Wang
- Department of Biliary-pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - H Wang
- Department of Biliary-pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - N Bouchiba
- Al Wakra Hospital, Hamad Medical Corporation, Al Wakra, Qatar
| | - T Elbakary
- Al Wakra Hospital, Hamad Medical Corporation, Al Wakra, Qatar
| | - A Ramadan
- Al Wakra Hospital, Hamad Medical Corporation, Al Wakra, Qatar
| | - M Elakkad
- Al Wakra Hospital, Hamad Medical Corporation, Al Wakra, Qatar
| | - C Berney
- Bankstown-Lidcombe Hospital, University of NSW, Sydney, Australia
| | - V Vlasov
- Khmelnitskiy regional hospital, Khmelnitskiy, Ukraine
| | | | | | | | - N Asakage
- Department of Surgery, Tsudanuma Central General Hospital, Chiba, Japan
| | - P Molinari
- University Of Insubria Anesthesia and Intensive Care, Varese, Italy
| | - E Contino
- University Of Insubria Anesthesia and Intensive Care, Varese, Italy
| | - L Guzzetti
- Department Of Anesthesia and Palliative Care, University Hospital Of Varese, Varese, Italy
| | - M Oggioni
- Department Of Anesthesia and Palliative Care, University Hospital Of Varese, Varese, Italy
| | - M Sambuco
- Department Of Anesthesia and Palliative Care, University Hospital Of Varese, Varese, Italy
| | - M Berselli
- University Hospital Of Varese Department Of Surgery, Varese, Italy
| | - L Farassino
- University Hospital Of Varese Department Of Surgery, Varese, Italy
| | - E Cocozza
- University Hospital Of Varese Department Of Surgery, Varese, Italy
| | - A Crespi
- University Of Insubria Anesthesia and Intensive Care, Varese, Italy
| | - A Ambrosoli
- Department Of Anesthesia and Palliative Care, University Hospital Of Varese, Varese, Italy
| | - Y Zhao
- Department of vascular Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Akasaka K, Yanase K, Tamura A, Otsudo T, Sawada Y, Okubo Y. A survey of joint mobilization education in physical therapy schools in Japan. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Guo AK, Hou YY, Hirata H, Yamauchi S, Yip AK, Chiam KH, Tanaka N, Sawada Y, Kawauchi K. Loss of p53 Enhances NF-κB-Dependent Lamellipodia Formation. J Cell Physiol 2014. [DOI: 10.1002/jcp.24651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Daggett RN, Kurata M, Abe S, Onishi I, Miura K, Sawada Y, Tanizawa T, Kitagawa M. Expression dynamics of CXCL12 and CXCR4 during the progression of mycosis fungoides. Br J Dermatol 2014; 171:722-31. [PMID: 24725174 DOI: 10.1111/bjd.13054] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/10/2014] [Indexed: 12/14/2022]
Abstract
BACKGROUND Mycosis fungoides (MF) classically presents from patch stage to plaque stage over a number of years and finally progresses to tumour stage with nodal or visceral involvement. The mechanism of progression remains incompletely elucidated. Chemokines and their receptors are known to be involved in disease mechanisms, with CXCL12 and CXCR4 playing a critical role in carcinogenesis, invasion and cancer cell migration in various carcinomas. OBJECTIVES To investigate the expression of CXCL12 and CXCR4 in different cutaneous stages of MF. METHODS Formalin-fixed, paraffin-embedded skin samples from 40 patients with MF (21 patch stage, 10 plaque stage, nine tumour stage) and 30 non-neoplastic control skin samples were analysed. CXCL12 and CXCR4 were assessed by quantitative reverse-transcription polymerase chain reaction and immunohistochemical staining. RESULTS The expression level of mRNA for CXCL12 in plaque-stage MF was significantly higher than in control skin (P = 0.0035), or patch-stage (P = 0.0108) or tumour-stage disease (P = 0.0089). The CXCR4 mRNA expression level in plaque-stage disease was significantly higher than in control skin (P = 0.0090) or patch-stage disease (P = 0.0387). CXCL12- and CXCR4-positive cell rates in patch-stage and plaque-stage MF were significantly higher than those in control skin (P < 0.0001). CXCL12- and CXCR4-positive cell rates in tumour-stage MF were significantly lower than those in patch- and plaque-stage disease (P = 0.0274 and P = 0.0492, respectively). CONCLUSIONS Our data suggest that neoplastic T cells in MF are exposed to the microenvironment, given the abundance of CXCL12 during its progression, and also that neoplastic T cells express CXCR4, especially in the pretumour stage. We reveal that the CXCL12-CXCR4 axis plays a critical role in MF progression.
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Affiliation(s)
- R N Daggett
- Department of Comprehensive Pathology, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
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Omoto K, Nozaki T, Inui M, Toki D, Shimizu T, Hirai T, Sawada Y, Ishida H, Tanabe K. Outcomes of Retroperitoneoscopic Live Donor Nephrectomy in Patients With Renal Artery Aneurysm. Transplantation 2014. [DOI: 10.1097/00007890-201407151-02046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Papatsoris AG, El-Husseiny T, Sawada Y, Takahashi T, Nagaoka A, Maan Z, Moraitis K, Masood J, Junaid I, Buchholz N. Treating bladder-outflow obstruction with thermo-expandable prostate metal stents. Expert Rev Med Devices 2014; 6:357-63. [PMID: 19572790 DOI: 10.1586/erd.09.13] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- A G Papatsoris
- Department of Urology, St Bartholomew's Hospital, Barts and The London NHS Trust, London, EC1A 7BE, UK.
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Ikeda I, Mizowaki T, Sawada Y, Nakata M, Norihisa Y, Ogura M, Hiraoka M. Assessment of interfractional prostate motion in patients immobilized in the prone position using a thermoplastic shell. J Radiat Res 2014; 55:168-174. [PMID: 23860549 PMCID: PMC3885122 DOI: 10.1093/jrr/rrt089] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Revised: 06/06/2013] [Accepted: 06/08/2013] [Indexed: 06/02/2023]
Abstract
The aim of this study was to evaluate the interfractional prostate motion of patients immobilized in the prone position using a thermoplastic shell. A total of 24 patients with prostate calcifications detectable using a kilo-voltage X-ray image-guidance system (ExacTrac X-ray system) were examined. Daily displacements of the calcification within the prostate relative to pelvic bony structures were calculated by the ExacTrac X-ray system. The average displacement and standard deviation (SD) in each of the left-right (LR), anterior-posterior (AP), and superior-inferior (SI) directions were calculated for each patient. Based on the results of interfractional prostate motion, we also calculated planning target volume (PTV) margins using the van Herk formula and examined the validity of the PTV margin of our institute (a 9-mm margin everywhere except posteriorly, where a 6-mm margin was applied). In total, 899 data measurements from 24 patients were obtained. The average prostate displacements ± SD relative to bony structures were 2.8 ± 3.3, -2.0 ± 2.0 and 0.2 ± 0.4 mm, in the SI, AP and LR directions, respectively. The required PTV margins were 9.7, 6.1 and 1.4 mm in the SI, AP and LR directions, respectively. The clinical target volumes of 21 patients (87.5%) were located within the PTV for 90% or more of all treatment sessions. Interfractional prostate motion in the prone position with a thermoplastic shell was equivalent to that reported for the supine position. The PTV margin of our institute is considered appropriate for alignment, based on bony structures.
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Affiliation(s)
- Itaru Ikeda
- Department of Radiation Oncology and Image-applied Therapy, Kyoto University Graduate School of Medicine, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - Takashi Mizowaki
- Department of Radiation Oncology and Image-applied Therapy, Kyoto University Graduate School of Medicine, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - Yohei Sawada
- Division of Clinical Radiology Service, Kyoto University Hospital, 54 ShogoinKawahara-cho,Sakyo-ku, Kyoto 606-8507, Japan
| | - Manabu Nakata
- Division of Clinical Radiology Service, Kyoto University Hospital, 54 ShogoinKawahara-cho,Sakyo-ku, Kyoto 606-8507, Japan
| | - Yoshiki Norihisa
- Department of Radiation Oncology and Image-applied Therapy, Kyoto University Graduate School of Medicine, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - Masakazu Ogura
- Department of Radiation Oncology and Image-applied Therapy, Kyoto University Graduate School of Medicine, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - Masahiro Hiraoka
- Department of Radiation Oncology and Image-applied Therapy, Kyoto University Graduate School of Medicine, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
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Shintaku H, Nakajima T, Sawada Y, Hase Y, Fujioka M, Nishimura A, Isshiki G, Oura T, Hsiao ΚJ, Chen RG. Prenatal Diagnosis of Tetrahydrobiopterin (BH4) Synthase Deficiency. Pteridines 2013. [DOI: 10.1515/pteridines.1991.3.12.17] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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)
- H. Shintaku
- Dept. of Osaka City Univ. Medical School, Osaka 545, Japan
| | - T. Nakajima
- Dept. of Osaka City Univ. Medical School, Osaka 545, Japan
| | - Y. Sawada
- Dept. of Pediatrics Juso Citizens' Hospital, Osaka 532, Japan
| | - Y. Hase
- First Division of Pediatrics Children's Medical Center of Osaka City, Osaka 537, Japan
| | - M. Fujioka
- Dept. of Pediatrics PL Hospital, Tondabayashi 584, Japan
| | - A. Nishimura
- Dept. of Pediatrics PL Hospital, Tondabayashi 584, Japan
| | - G. Isshiki
- Dept. of Osaka City Univ. Medical School, Osaka 545, Japan
| | - T. Oura
- Osaka Municipal Rehabilitation Center for the Disabled, Osaka 547, Japan
| | - Κ. J. Hsiao
- Veterans General Hospital, Taipei 11216, Republic of China
| | - R. G. Chen
- Shanghai Institute for Pediatric Research, Shanghai, China
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Awa K, Satoh H, Hori S, Sawada Y. Prediction of time-dependent interaction of aspirin with ibuprofen using a pharmacokinetic/pharmacodynamic model. J Clin Pharm Ther 2011; 37:469-74. [PMID: 22122406 DOI: 10.1111/j.1365-2710.2011.01313.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
WHAT IS KNOWN AND OBJECTIVE Low-dose aspirin is widely used for prevention of thrombosis, but combined use of aspirin with non-steroidal anti-inflammatory drugs (NSAIDs), such as ibuprofen, reduces the antiplatelet effect of aspirin. However, there has been no report describing the effects of the timing of the ibuprofen dose on the degree of interaction between low-dose aspirin and ibuprofen. The purpose of this study was to predict the time-course of the antiplatelet effect of low-dose aspirin when ibuprofen is administered as a single dose or repeatedly in combination with aspirin at various time intervals. METHODS We simulated ex vivo platelet aggregation using a previously developed pharmacokinetic (PK)/pharmacodynamic (PD) model. RESULTS AND DISCUSSION The antiplatelet effect of low-dose aspirin (81 mg) was predicted to be markedly reduced when ibuprofen (200 mg; the usual prescribed dose in Japan) was administered 1 h or less after aspirin, but not when it was administered more than 2 h after the administration of aspirin. Moreover, the administration of ibuprofen up to 12 h before aspirin completely abrogated the antiplatelet effect of aspirin. When ibuprofen (200 mg) was administered three times daily for 3 days (day 1 to day 3) on a background of continuous low-dose aspirin (81 mg) once daily, 2 h after aspirin, no reduction in the antiplatelet effect of aspirin was predicted on day 1, but a reduction is predicted from day 2, with no return to the initial level until more than 3 days after discontinuation of ibuprofen. A marked reduction in the antiplatelet effect of aspirin was also seen on the same schedule when the dosage of ibuprofen was 150 mg, which is the dose used in over-the-counter (OTC) preparations. WHAT IS NEW AND CONCLUSION This study indicates that the antiplatelet effect of low-dose aspirin can be markedly reduced with combined use of ibuprofen, depending on the timing of co-administration. As even the lower OTC dose of ibuprofen (150 mg) was enough to affect the antiplatelet effect of aspirin, health professionals should take into account patients' use of OTC ibuprofen when prescribing low-dose aspirin.
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Affiliation(s)
- K Awa
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
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Kuroda I, Sawada Y, Kodaira K, Oyama M, Ueno M. UP-02.165 Clinical Outcome: SV(+) Localized Advanced Prostate Cancer with PSA Over 50 Treated by HDR (High-Dose-Rate) Brachytherapy. Urology 2011. [DOI: 10.1016/j.urology.2011.07.983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Nakamura M, Sugita K, Sawada Y, Yoshiki R, Hino R, Tokura Y. High levels of activation-induced cytidine deaminase expression in adult T-cell leukaemia/lymphoma. Br J Dermatol 2011; 165:437-9. [DOI: 10.1111/j.1365-2133.2011.10342.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Hanafusa T, Igawa K, Takagawa S, Yahara H, Harada J, Tani M, Sawada Y, Katayama I. Erythroderma as a paraneoplastic cutaneous disorder in systemic anaplastic large cell lymphoma. J Eur Acad Dermatol Venereol 2011; 26:710-3. [PMID: 21707767 DOI: 10.1111/j.1468-3083.2011.04150.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Paraneoplastic cutaneous disorders (PCDs) or dermadromes are skin conditions that have an association with internal malignancies but are not themselves malignant. We report the first two cases of systemic anaplastic large cell lymphoma (s-ALCL) accompanied by erythroderma and multiple leg ulcers as PCDs. CASE 1: A 52-year-old Japanese man presented with disseminated itchy papular erythemas which he had over his entire body for the preceding 5 years that later exacerbated to erythroderma. Multiple punched-out ulcers also developed on his lower legs. Superficial lymph nodes (LNs) were swollen, and a left axillary LN biopsy demonstrated dense CD30(+) atypical large cell (ALC) infiltration. By contrast, lymphocytes infiltrating into the erythroderma and leg ulcers were CD30(-) , and T-cell receptor β (TCRβ) chain gene rearrangement was negative in skin biopsy specimens. Thus, he was diagnosed with s-ALCL. Not only his s-ALCL but also his erythroderma and leg ulcers responded well to chemotherapy. CASE 2: A 71-year-old Japanese woman presented with erythroderma that persisted for approximately 20 years after mastectomy. At her initial hospital visit, she was diagnosed with s-ALCL by biopsy of swollen left inguinal LNs. Similar to Case 1, CD30(+) ALCs were negative in skin samples with normal TCRβ chain gene rearrangement. As the erythrodermic skin lesion responded well to chemotherapy for s-ALCL, it was considered a PCD. CONCLUSION s-ALCL development may be predicted by the precedence and concurrence of intractable paraneoplastic erythrodermic and ulcerative skin lesions, as reported in our two cases.
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Affiliation(s)
- T Hanafusa
- Department of Dermatology, Osaka University Graduate School of Medicine, Osaka, Japan
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Osada S, Akiyama M, Takasaki M, Takagawa S, Nakazawa K, Murata S, Sawada Y, Kawana S. Revascularization by percutaneous transluminal angioplasty improved abruptly deteriorated ischaemic symptoms in cutaneous polyarteritis nodosa. Clin Exp Dermatol 2011; 36:502-5. [DOI: 10.1111/j.1365-2230.2011.04050.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kabashima R, Sugita K, Sawada Y, Hino R, Nakamura M, Tokura Y. Increased circulating Th17 frequencies and serum IL-22 levels in patients with acute generalized exanthematous pustulosis. J Eur Acad Dermatol Venereol 2011; 25:485-8. [PMID: 20569282 DOI: 10.1111/j.1468-3083.2010.03771.x] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [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: 11/29/2022]
Abstract
BACKGROUND/OBJECTIVE Acute generalized exanthematous pustulosis (AGEP) is a diffuse pustular disorder that usually begins in intertriginous folds with widespread erythema. The causes in the majority of the cases are drugs. T cells and interleukin (IL)-8 play roles in the development of AGEP, but the mechanism remains to be elucidated. We investigated the involvement of Th17 cells and their cytokine IL-22 in the pathogenesis. METHODS Three patients with AGEP were enrolled in this study. The percentages of IL-17(+) Th17 cells, interferon γ(+) T cells and IL-4(+) T cells were measured in the patients' peripheral blood lymphocytes by intracellular cytokine staining and flow cytometry. The concentration of IL-22 in the sera was measured by enzyme-linked immunosorbent assay. RESULTS The percentages of Th17 cells were markedly higher in all three patients than healthy control individuals. The frequencies of interferon γ(+) T cells were slightly high in the patients compared with the control, and there was no definite tendency in IL-4(+) T-cell frequencies. The concentration of IL-22 was remarkably high in all patients when compared with normal subjects with levels under detection. CONCLUSION Th17 cells and their produced cytokine IL-22 were elevated in the peripheral blood of patients with AGEP. As IL-17 and IL-22 cooperatively stimulate keratinocytes to produce IL-8, IL-8 may contribute to the accumulation of neutrophils in the lesional epidermis of AGEP.
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Affiliation(s)
- R Kabashima
- Department of Dermatology, University of Occupational and Environmental Health, Yahatanishi-ku, Kitakyushu, Japan
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Nakamizo S, Kurosawa M, Sawada Y, Tokura Y, Miyachi Y, Kabashima K. A case of cholinergic urticaria associated with acquired generalized hypohidrosis and reduced acetylcholine receptors: cause and effect? Clin Exp Dermatol 2011; 36:559-60. [DOI: 10.1111/j.1365-2230.2011.04015.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Miki A, Ohtani H, Sawada Y. Warfarin and miconazole oral gel interactions: analysis and therapy recommendations based on clinical data and a pharmacokinetic model. J Clin Pharm Ther 2010; 36:642-50. [PMID: 21143257 DOI: 10.1111/j.1365-2710.2010.01229.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVE Miconazole is a strong inhibitor of CYP2C9, one of the main enzymes involved in the metabolism of warfarin. Concurrent use of the two drugs leads to potentially serious adverse effects. Although it is often assumed that use of the oral miconazole gel is acceptable with concomitant warfarin, because of the low bioavailability following buccal administration, drug-drug interactions have been reported following such use. We aimed to investigate case reports of such interactions and develop a pharmacokinetic model to model such interactions. METHODS The Medline database from 1966 to October 2010 was used for literature search. Case reports of the potentiation of the anticoagulant effects of warfarin, such as the elevation of prothrombin time (INR), by concomitant administration of warfarin and miconazole oral gel were collected. We quantitatively estimated the extent of inhibition of warfarin metabolism by orally administered miconazole gel and compared our findings with case reports. RESULTS AND DISCUSSION Metabolism of (S)-warfarin is inhibited potently following administration of a standard dose (200-400 mg/day in Japan) of miconazole gel. This may lead to in an increase in the blood concentration of warfarin and lead to serious adverse effects. The literature reports of clinical interactions with concomitant use of those drugs show that other factors may amplify the effects of any increase in blood concentration. WHAT IS NEW AND CONCLUSION We summarize all reported, clinically significant, cases of drug interaction between miconazole oral gel and warfarin. Pharmacokinetic modelling shows that concomitant administration of warfarin and miconazole oral gel can lead to substantial increase in warfarin concentration. However, our PK/PD model fails to capture the dramatic increases seen in INR values, and hence bleeding complications, reported in the literature. Taken together, the evidence suggests that concomitant use of miconazole gel and warfarin should be avoided. Even over-the-counter products containing miconazole should be used with caution by patients receiving warfarin.
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Affiliation(s)
- A Miki
- Laboratory of Drug Informatics, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
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Matsuura R, Sawada Y, Ishibashi Y. Development of visual cells in the Pacific bluefin tuna Thunnus orientalis. Fish Physiol Biochem 2010; 36:391-402. [PMID: 19288257 DOI: 10.1007/s10695-009-9306-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2008] [Accepted: 01/25/2009] [Indexed: 05/27/2023]
Abstract
The development of rod and cone photoreceptor cells was investigated in the retinas of Pacific bluefin tuna larvae and juveniles, using RET-P1 monoclonal antibody labeling to identify photoreceptors. At 60 h after hatching, which was about when feeding began, opsin (presumably green opsin (Rh2)) was expressed in the outer segments of cone cells. At 15 days after hatching (dah), although many labeled cone cells were observed in the dorsal retina, the same type of cone cells had partially appeared in the ventral retina. The presence of rod cell bodies was confirmed by the expression of Rh1 opsin at 15 dah. At 21 dah, the presence of outer segments of rod cells was confirmed by the expression of Rh1 opsin and by morphology. The observations suggest that the cone cells were substantially operable upon the development of their outer segment at around the beginning of the post-larval stage, and the rod cells began to function at around 15 to 21 dah, before and during metamorphosis.
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Affiliation(s)
- R Matsuura
- Department of Fisheries, School of Agriculture, Kinki University, Nakamachi, Nara, 631-8505, Japan
- Criminal Investigation Laboratory of Nara Prefectural Police Headquarters, 585 Imaichi-cho, Nara, 630-8444, Japan
| | - Y Sawada
- Fisheries Laboratory, Kinki University, Ohshima, Kushimoto, Wakayama, 649-3633, Japan
| | - Y Ishibashi
- Department of Fisheries, School of Agriculture, Kinki University, Nakamachi, Nara, 631-8505, Japan.
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Fukuda H, Torisawa S, Sawada Y, Takagi T. Ontogenetic changes in schooling behaviour during larval and early juvenile stages of Pacific bluefin tuna Thunnus orientalis. J Fish Biol 2010; 76:1841-1847. [PMID: 20557635 DOI: 10.1111/j.1095-8649.2010.02598.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Schooling was first observed at 25-27 days after hatching (26. 2-33. 8 mm, total length) in the Pacific bluefin tuna Thunnus orientalis. At this time, the mode of swimming changed from intermittent sprinting to continuous cruising, and this allowed the fish to adjust to an inertial hydrodynamic environment.
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Affiliation(s)
- H Fukuda
- Department of Fisheries, School of Agriculture, Kinki University, 3327-204 Nakamachi, Nara 631-8505, Japan
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Matsuo H, Okamura J, Chen J, Takanaga H, Ohtani H, Kaneda Y, Naito M, Tsuruo T, Sawada Y. Efficient introduction of macromolecules and oligonucleotides into brain capillary endothelial cells using HVJ-liposomes. J Drug Target 2010. [DOI: 10.3109/10611860108995635] [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]
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Takedomi S, Matsuo H, Yamano K, Ohtani H, Sawada Y. In-vivo kinetics of the interaction between midazolam and erythromycin in rats, taking account of metabolic intermediate complex formation. J Pharm Pharmacol 2010; 53:643-51. [PMID: 11370704 DOI: 10.1211/0022357011775974] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Abstract
To predict, quantitatively, the extent of drug interaction during repeated administration of a metabolic inhibitor, we analysed the effects of erythromycin treatment under several regimens on the area under the concentration curve (AUC) of midazolam in rats. Midazolam was administered into the portal vein 12 h after erythromycin treatment for 1, 2 or 3 days, or 12, 24, 36, 48, 72 and 96 h after erythromycin treatment for 4 days, and the plasma-concentration profiles of midazolam were analysed to assess the AUC. Moreover, the contents of total cytochrome P450 and inactive metabolic intermediate (MI) complex were simultaneously quantitated. While the AUC value of midazolam was not affected by the administration of erythromycin for 1 day, repeated administration of erythromycin evoked an increase in AUC ratio (AUC in erythromycin-treated rats/AUC in vehicle-treated rats), which reached a maximum value of 1.99 at 12 h after 4 days' treatment with erythromycin. The total content of cytochrome P450 in liver microsomes was unaffected by erythromycin treatment. Although the MI complex was undetectable after 1 day's treatment with erythromycin, its content increased with duration of erythromycin treatment, and the complex disappeared after the end of erythromycin treatment with a half-life of 12.3 h. In conclusion, the interaction between erythromycin and midazolam could be well predicted when the formation of MI complex in the liver was taken into account.
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Affiliation(s)
- S Takedomi
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
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Sawada Y. Docetaxel-induced Stevens-Johnson syndrome with regenerating epidermis composed of atypical keratinocytes. J Eur Acad Dermatol Venereol 2009; 23:1333-5. [DOI: 10.1111/j.1468-3083.2009.03183.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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