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Hattori T, Fujioka K, Nagai T, Kondo S, Kagami S, Hirayama M, Urushihara M. Intrarenal renin-angiotensin system activation and macrophage infiltrations in pediatric chronic glomerulonephritis. Pediatr Nephrol 2023; 38:3711-3719. [PMID: 37231123 PMCID: PMC10514104 DOI: 10.1007/s00467-023-06026-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 04/21/2023] [Accepted: 04/25/2023] [Indexed: 05/27/2023]
Abstract
BACKGROUND The current study tested the hypothesis that urinary angiotensinogen (UAGT) and urinary monocyte chemoattractant protein-1 (UMCP-1) levels provide a specific index of intrarenal renin-angiotensin system (RAS) status and the degree of infiltration of macrophages associated with RAS blockade and immunosuppressant treatment in pediatric patients with chronic glomerulonephritis. METHODS We measured baseline UAGT and UMCP-1 levels to examine the correlation between glomerular injury in 48 pediatric chronic glomerulonephritis patients before treatment. Furthermore, we performed immunohistochemical analysis of angiotensinogen (AGT) and CD68 in 27 pediatric chronic glomerulonephritis patients treated with RAS blockades and immunosuppressants for 2 years. Finally, we examined the effects of angiotensin II (Ang II) on monocyte chemoattractant protein-1 (MCP-1) expression in cultured human mesangial cells (MCs). RESULTS Baseline UAGT and UMCP-1 levels positively correlated with urinary protein levels, scores for mesangial hypercellularity, rate of crescentic formation, and expression levels of AGT and CD68 in renal tissues (p < 0.05). UAGT and UMCP-1 levels were significantly decreased after RAS blockade and immunosuppressant treatment (p < 0.01), which was accompanied by AGT and CD68 (p < 0.01), as well as the magnitude of glomerular injury. Cultured human MCs showed increased MCP-1 messenger ribonucleic acid and protein levels after Ang II treatment (p < 0.01). CONCLUSIONS The data indicates that UAGT and UMCP-1 are useful biomarkers of the degree of glomerular injury during RAS blockade and immunosuppressant treatment in pediatric patients with chronic glomerulonephritis.
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Affiliation(s)
- Tomoki Hattori
- Department of Pediatrics, Tokushima University Graduate School of Biomedical Sciences, Kuramoto-cho 3-18-15, Tokushima, Tokushima, 770-8503, Japan
- Department of Pediatrics, Mie University Graduate School of Medicine, Mie, Japan
| | - Keisuke Fujioka
- Department of Pediatrics, Tokushima University Graduate School of Biomedical Sciences, Kuramoto-cho 3-18-15, Tokushima, Tokushima, 770-8503, Japan
| | - Takashi Nagai
- Department of Pediatrics, Tokushima University Graduate School of Biomedical Sciences, Kuramoto-cho 3-18-15, Tokushima, Tokushima, 770-8503, Japan
| | - Shuji Kondo
- Department of Pediatrics, Tokushima University Graduate School of Biomedical Sciences, Kuramoto-cho 3-18-15, Tokushima, Tokushima, 770-8503, Japan
| | - Shoji Kagami
- Department of Pediatrics, Tokushima University Graduate School of Biomedical Sciences, Kuramoto-cho 3-18-15, Tokushima, Tokushima, 770-8503, Japan
| | - Masahiro Hirayama
- Department of Pediatrics, Mie University Graduate School of Medicine, Mie, Japan
| | - Maki Urushihara
- Department of Pediatrics, Tokushima University Graduate School of Biomedical Sciences, Kuramoto-cho 3-18-15, Tokushima, Tokushima, 770-8503, Japan.
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2
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Higashigawa M, Nakamura T, Hattori T, Yoshino A, Ito M, Ichimi R. Combination of prednisolone and cyclosporine A as third-line therapy for refractory Kawasaki disease. Minerva Pediatr (Torino) 2023; 75:682-688. [PMID: 31833348 DOI: 10.23736/s0026-4946.19.05567-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND The selection of drugs as third-line therapy for patients with Kawasaki disease (KD) who are resistant to second-line therapy remains controversial. METHODS We reviewed the medical records of 354 patients (216 males/137 females) with KD who were treated in our department from July 2003 to January 2016. The age range was 1 month to 10 years, and the median age was 2 years and 1 month. A combination of 2 g/kg intravenous immunoglobulin (IVIG) plus 30 mg/kg of aspirin was used as first-line therapy. Patients who were refractory to the first-line therapy were administered 2 mg/kg of prednisolone (PSL) in combination with IVIG. Five patients who were refractory to the second-line therapy were treated with cyclosporine A (CsA) combined with PSL as the third-line therapy. RESULTS All five patients immediately responded to the third-line therapy. One of the five patients showed a transient dilatation of the coronary artery that regressed to its normal size by the 60th day of illness. CONCLUSIONS We suggest that the combination of CsA and steroids might be a promising therapeutic strategy for refractory KD.
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Affiliation(s)
- Masamune Higashigawa
- Department of Pediatrics and Neonatology, Japanese Red Cross Ise Hospital, Ise, Japan -
| | - Tomomi Nakamura
- Department of Pediatrics and Neonatology, Japanese Red Cross Ise Hospital, Ise, Japan
| | - Tomoki Hattori
- Department of Pediatrics and Neonatology, Japanese Red Cross Ise Hospital, Ise, Japan
| | - Ayako Yoshino
- Department of Pediatrics and Neonatology, Japanese Red Cross Ise Hospital, Ise, Japan
| | - Mitsue Ito
- Department of Pediatrics and Neonatology, Japanese Red Cross Ise Hospital, Ise, Japan
| | - Ryoji Ichimi
- Department of Pediatrics and Neonatology, Japanese Red Cross Ise Hospital, Ise, Japan
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3
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Imaoka A, Hattori T, Akiyoshi T, Ohtani H. Irinotecan-induced gastrointestinal damage alters the expression of peptide transporter 1 and absorption of cephalexin in rats. Biopharm Drug Dispos 2023; 44:372-379. [PMID: 37507848 DOI: 10.1002/bdd.2372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 06/30/2023] [Accepted: 07/03/2023] [Indexed: 07/30/2023]
Abstract
Irinotecan causes severe gastrointestinal damage, which may affect the expression of intestinal transporters. However, neither the expression of peptide transporter 1 (Pept1) nor the pharmacokinetics of Pept1 substrate drugs has been investigated under irinotecan-induced gastrointestinal damage. Therefore, the present study quantitatively investigated the effects of irinotecan-induced gastrointestinal damage on the intestinal expression of Pept1 and absorption of cephalexin (CEX), a typical Pept1 substrate, in rats. Irinotecan was administered intravenously to rats for 4 days to induce gastrointestinal damage. The expression of Pept1 mRNA and the Pept1 protein in the upper, middle, and lower segments of the small intestine of irinotecan-treated rats was assessed by quantitative real-time polymerase chain reaction (PCR) and western blotting, respectively. The pharmacokinetic profile of CEX was examined after its oral or intravenous administration (10 mg/kg). In irinotecan-treated rats, ∼2-fold increases in Pept1 protein levels were observed in all three segments, whereas mRNA levels remained unchanged. The oral bioavailability of CEX significantly decreased to 76% of that in control rats. The decrease in passive diffusion caused by intestinal damage may have overcome the increase in Pept1-mediated uptake. In conclusion, irinotecan may decrease the intestinal absorption of Pept1 substrate drugs; however, it increased the expression of intestinal Pept1.
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Affiliation(s)
- Ayuko Imaoka
- Division of Clinical Pharmacokinetics, Keio University Faculty of Pharmacy, Tokyo, Japan
| | - Tomoki Hattori
- Division of Clinical Pharmacokinetics, Keio University Faculty of Pharmacy, Tokyo, Japan
| | - Takeshi Akiyoshi
- Division of Clinical Pharmacokinetics, Keio University Faculty of Pharmacy, Tokyo, Japan
- Department of Clinical Pharmacy, School of Medicine, Keio University, Tokyo, Japan
| | - Hisakazu Ohtani
- Division of Clinical Pharmacokinetics, Keio University Faculty of Pharmacy, Tokyo, Japan
- Department of Clinical Pharmacy, School of Medicine, Keio University, Tokyo, Japan
- Department of Pharmacy, Keio University Hospital, Tokyo, Japan
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4
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Yoshida S, Unno K, Nanasato M, Niimi T, Inukai K, Morisaki H, Hattori T, Hirose M, Hayashi T, Uchida N, Simoda M, Oishi H, Ando M, Hirayama K, Takenaka M, Maeda M, Yoshida R, Ogura Y, Suzuki H, Furusawa K, Morimoto R, Kato K, Isobe S, Yoshida Y, Murohara T. The potential of dynamic 99mTc-sestamibi CZT-SPECT camera assessing myocardial flow reserve in patients with HFpEF. European Heart Journal Open 2023; 3:oead028. [PMID: 37026023 PMCID: PMC10072870 DOI: 10.1093/ehjopen/oead028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 03/02/2023] [Accepted: 03/12/2023] [Indexed: 03/17/2023]
Abstract
Aims Coronary microvascular dysfunction (CMD) is related to the pathophysiology, mortality, and morbidity of heart failure with preserved ejection fraction (HFpEF). A novel single-photon emission computed tomography (SPECT) camera with cadmium zinc telluride (CZT) detectors allows for the quantification of absolute myocardial blood flow and myocardial flow reserve (MFR) in patients with coronary artery disease. However, the potential of CZT-SPECT assessing for CMD has never been evaluated in patients with HFpEF. Methods and results The clinical records of 127 consecutive patients who underwent dynamic CZT-SPECT were retrospectively reviewed. Rest and stress scanning were started simultaneously with 3 and 9 MBq/kg of 99mTc-sestamibi administration, respectively. Dynamic CZT-SPECT imaging data were analysed using a net-retention model with commercially available software. Transthoracic echocardiography was performed in all patients. The MFR value was significantly lower in the HFpEF group (mean ± SEM = 2.00 ± 0.097) than that in the non-HFpEF group (mean ± SEM = 2.74 ± 0.14, P = 0.0004). A receiver operating characteristic analysis indicated that if a cut-off value of 2.525 was applied, MFR could efficiently distinguish HFpEF from non-HFpEF. Heart failure with preserved ejection fraction had a consistently low MFR, regardless of the diastolic dysfunction score. Heart failure with preserved ejection fraction patients with MFR values lower than 2.075 had a significantly higher incidence of heart failure exacerbation. Conclusion Myocardial flow reserve assessed by CZT-SPECT was significantly reduced in patients with HFpEF. A lower MFR was associated with a higher hospitalization rate in these patients. Myocardial flow reserve assessed by CZT-SPECT has the potential to predict future adverse events and stratify the severity of disease in patients with HFpEF.
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Affiliation(s)
- Satoya Yoshida
- Cardiovascular Center, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital
- Department Cardiology, Nagoya University Graduate School of Medicine
| | - Kazumasa Unno
- Cardiovascular Center, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital
- Department Cardiology, Nagoya University Graduate School of Medicine
| | | | - Takanaga Niimi
- Division of Nuclear Medicine, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital
| | - Kohei Inukai
- Cardiovascular Center, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital
| | - Hidenori Morisaki
- Cardiovascular Center, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital
| | - Tomoki Hattori
- Cardiovascular Center, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital
| | - Miku Hirose
- Cardiovascular Center, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital
- Department Cardiology, Nagoya University Graduate School of Medicine
| | - Takumi Hayashi
- Cardiovascular Center, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital
- Department Cardiology, Nagoya University Graduate School of Medicine
| | - Noriya Uchida
- Cardiovascular Center, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital
| | - Masahiro Simoda
- Cardiovascular Center, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital
| | - Hideo Oishi
- Cardiovascular Center, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital
- Department Cardiology, Nagoya University Graduate School of Medicine
| | - Monami Ando
- Cardiovascular Center, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital
| | - Kenshi Hirayama
- Cardiovascular Center, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital
| | - Masaki Takenaka
- Cardiovascular Center, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital
| | - Mayuho Maeda
- Cardiovascular Center, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital
| | - Ruka Yoshida
- Cardiovascular Center, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital
- Department Cardiology, Nagoya University Graduate School of Medicine
| | - Yasuhiro Ogura
- Cardiovascular Center, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital
| | - Hirohiko Suzuki
- Cardiovascular Center, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital
| | - Kenji Furusawa
- Department Cardiology, Nagoya University Graduate School of Medicine
| | - Ryota Morimoto
- Department Cardiology, Nagoya University Graduate School of Medicine
| | - Katsuhiko Kato
- Department of Radiology, Nagoya University Hospital , Nagoya , Japan
| | - Satoshi Isobe
- Department Cardiology, Nagoya University Graduate School of Medicine
| | - Yukihiko Yoshida
- Cardiovascular Center, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital
| | - Toyoaki Murohara
- Department Cardiology, Nagoya University Graduate School of Medicine
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5
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Albert C, Bracaglia L, Koide A, DiRito J, Lysyy T, Harkins L, Edwards C, Richfield O, Grundler J, Zhou K, Denbaum E, Ketavarapu G, Hattori T, Perincheri S, Langford J, Feizi A, Haakinson D, Hosgood SA, Nicholson ML, Pober JS, Saltzman WM, Koide S, Tietjen GT. Monobody adapter for functional antibody display on nanoparticles for adaptable targeted delivery applications. Nat Commun 2022; 13:5998. [PMID: 36220817 PMCID: PMC9553936 DOI: 10.1038/s41467-022-33490-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Accepted: 09/20/2022] [Indexed: 11/08/2022] Open
Abstract
Vascular endothelial cells (ECs) play a central role in the pathophysiology of many diseases. The use of targeted nanoparticles (NPs) to deliver therapeutics to ECs could dramatically improve efficacy by providing elevated and sustained intracellular drug levels. However, achieving sufficient levels of NP targeting in human settings remains elusive. Here, we overcome this barrier by engineering a monobody adapter that presents antibodies on the NP surface in a manner that fully preserves their antigen-binding function. This system improves targeting efficacy in cultured ECs under flow by >1000-fold over conventional antibody immobilization using amine coupling and enables robust delivery of NPs to the ECs of human kidneys undergoing ex vivo perfusion, a clinical setting used for organ transplant. Our monobody adapter also enables a simple plug-and-play capacity that facilitates the evaluation of a diverse array of targeted NPs. This technology has the potential to simplify and possibly accelerate both the development and clinical translation of EC-targeted nanomedicines.
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Affiliation(s)
- C Albert
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA
| | - L Bracaglia
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA
| | - A Koide
- Perlmutter Cancer Center, New York University Langone Medical Center, New York, NY, USA
- Department of Medicine, New York University School of Medicine, New York, NY, USA
| | - J DiRito
- Department of Surgery, Yale University, New Haven, CT, USA
| | - T Lysyy
- Department of Surgery, Yale University, New Haven, CT, USA
| | - L Harkins
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA
| | - C Edwards
- Department of Surgery, Yale University, New Haven, CT, USA
| | - O Richfield
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA
- Department of Surgery, Yale University, New Haven, CT, USA
| | - J Grundler
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA
| | - K Zhou
- Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT, USA
| | - E Denbaum
- Perlmutter Cancer Center, New York University Langone Medical Center, New York, NY, USA
| | - G Ketavarapu
- Perlmutter Cancer Center, New York University Langone Medical Center, New York, NY, USA
| | - T Hattori
- Perlmutter Cancer Center, New York University Langone Medical Center, New York, NY, USA
- Department of Biochemistry and Molecular Pharmacology, New York University School of Medicine, New York, NY, USA
| | - S Perincheri
- Department of Pathology, Yale University, New Haven, CT, USA
| | - J Langford
- Department of Surgery, Yale University, New Haven, CT, USA
| | - A Feizi
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA
| | - D Haakinson
- Department of Surgery, Yale University, New Haven, CT, USA
| | - S A Hosgood
- Department of Surgery, University of Cambridge, Cambridge, UK
| | - M L Nicholson
- Department of Surgery, University of Cambridge, Cambridge, UK
| | - J S Pober
- Department of Immunobiology, Yale University, New Haven, CT, USA
| | - W M Saltzman
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA
| | - S Koide
- Perlmutter Cancer Center, New York University Langone Medical Center, New York, NY, USA.
- Department of Biochemistry and Molecular Pharmacology, New York University School of Medicine, New York, NY, USA.
| | - G T Tietjen
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA.
- Department of Surgery, Yale University, New Haven, CT, USA.
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6
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Hattori T, Mizuno A, Yoneoka D, Tam WWS, Kwong JSW. Direct thrombin inhibitors and factor Xa inhibitors for acute coronary syndromes: a network meta-analysis. Hippokratia 2022. [DOI: 10.1002/14651858.cd014549] [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: 11/10/2022]
Affiliation(s)
- Tomoki Hattori
- Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital; Nagoya Japan
| | - Atsushi Mizuno
- Department of Cardiology; St. Luke's International Hospital; Tokyo Japan
| | - Daisuke Yoneoka
- Infectious Disease Surveillance Center; National Institute of Infectious Diseases; Tokyo Japan
| | - Wilson Wai San Tam
- Alice Lee Center for Nursing Studies; NUS Yong Loo Lin School of Medicine; Singapore Singapore
| | - Joey SW Kwong
- Global Health Nursing, Graduate School of Nursing Science; St. Luke's International University; Tokyo Japan
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Klotz S, Baptiste B, Hattori T, Feng S, Jin C, Béneut K, Guigner J, Estève I. High-pressure polymerisation of CS 2: 'Bridgman's black' revisited. Acta Cryst Sect A 2022. [DOI: 10.1107/s2053273322091161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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8
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Zhang W, Yamaguchi T, Fang C, Yoshida K, Zhou Y, Zhu F, Machida S, Hattori T, Li W. Structure of an aqueous RbCl solution in the gigapascal pressure range by neutron diffraction combined with empirical potential structure refinement modeling. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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9
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Sakaki Y, Urushihara M, Nagai T, Fujioka K, Kondo S, Kinoshita Y, Hattori T, Kagami S. Urinary angiotensin converting enzyme 2 and disease activity in pediatric IgA nephropathy. J Med Invest 2021; 68:292-296. [PMID: 34759147 DOI: 10.2152/jmi.68.292] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Background : Our previous studies demonstrated that the intrarenal renin-angiotensin system (RAS) status was activated in pediatric patients with chronic glomerulonephritis. In the present study, we tested the hypothesis that angiotensin-converting enzyme 2 (ACE2) expression in the kidney is associated with the development of pediatric IgA nephropathy. Methods : We analyzed urinary ACE2 levels and ACE2 expression in the kidney tissues of pediatric patients with IgA nephropathy treated with RAS blockade. Paired tests were used to analyze changes from the first to the second biopsy. Results : Urinary ACE2 levels were significantly decreased after RAS blockade treatment, accompanied by decreased ACE2 expression levels in kidney tissues, urinary protein levels and mesangial hypercellularity scores. Urinary ACE2 levels at the first biopsy were positively correlated with the ACE2 expression levels. Conclusions : These data suggest that urinary ACE2 is associated with ACE2 expression in the diseased kidney, which correlates with the pathogenesis of IgA nephropathy in pediatric patients. J. Med. Invest. 68 : 292-296, August, 2021.
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Affiliation(s)
- Yuki Sakaki
- Department of Pediatrics, Institute of Biomedical Scicences, The Tokushima University Graduate School, Tokushima, Japan
| | - Maki Urushihara
- Department of Pediatrics, Institute of Biomedical Scicences, The Tokushima University Graduate School, Tokushima, Japan
| | - Takashi Nagai
- Department of Pediatrics, Institute of Biomedical Scicences, The Tokushima University Graduate School, Tokushima, Japan
| | - Keisuke Fujioka
- Department of Pediatrics, Institute of Biomedical Scicences, The Tokushima University Graduate School, Tokushima, Japan
| | - Shuji Kondo
- Department of Pediatrics, Institute of Biomedical Scicences, The Tokushima University Graduate School, Tokushima, Japan
| | - Yukiko Kinoshita
- Department of Pediatrics, Institute of Biomedical Scicences, The Tokushima University Graduate School, Tokushima, Japan
| | - Tomoki Hattori
- Department of Pediatrics, Institute of Biomedical Scicences, The Tokushima University Graduate School, Tokushima, Japan
| | - Shoji Kagami
- Department of Pediatrics, Institute of Biomedical Scicences, The Tokushima University Graduate School, Tokushima, Japan
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10
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Hattori T, Sugita Y, Isomura M, Kawai R, Yoshida W, Suzumura T, Suzumura Y, Kubo K, Maeda H. EFFECTS OF LOW-LEVEL LASER IRRADIATION ON THE GROWTH OF THE RAT MANDIBULAR CONDYLE IN ORGAN CULTURE. Oral Surg Oral Med Oral Pathol Oral Radiol 2021. [DOI: 10.1016/j.oooo.2021.03.081] [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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11
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Maeda H, Isomura M, Hattori T, Kawai R, Yoshida W, Suzumura T, Suzumura Y, Sugita Y, Kubo K. MELANOCYTES IN ODONTOGENIC CYSTS. Oral Surg Oral Med Oral Pathol Oral Radiol 2021. [DOI: 10.1016/j.oooo.2021.03.106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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12
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Nagai T, Taguchi K, Isobe T, Matsuyama N, Hattori T, Unno R, Kato T, Etani T, Hamakawa T, Fujii Y, Ikegami Y, Kamiya H, Hamamoto S, Nakane A, Ando R, Maruyama T, Okada A, Kawai N, Yasui T. A multicenter, propensity score-matched retrospective study of preventing postoperative infection in robotic and laparoscopic minimally invasive surgeries; double-versus single-gloving. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)00561-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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13
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Kitamoto Y, Oda K, Ogino K, Hiyama K, Kita H, Hattori T, Oi S. Synthesis of an azadioxa-planar triphenylborane and investigation of its structural and photophysical properties. Chem Commun (Camb) 2021; 57:2297-2300. [PMID: 33533350 DOI: 10.1039/d0cc08331c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
We report here the first successful synthesis of planar triphenylborane 1 with the phenyl groups bridged by oxygen and nitrogen atoms via double nucleophilic aromatic substitution reaction. The hetero atom-bridged 1 has excellent planarity. Its structural and photophysical properties are tunable by altering the bridging atoms.
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Affiliation(s)
- Y Kitamoto
- Department of Biomolecular Engineering, Graduate School of Engineering, Tohoku University, 6-6-11 Aramaki-Aoba, Aoba-ku, Sendai 980-8579, Japan.
| | - K Oda
- Advanced Technology Center, Corporate R&D Headquarters, KONICA MINOLTA, INC., 2970 Ishikawa-Machi, Hachioji-shi, Tokyo 192-8505, Japan
| | - K Ogino
- Advanced Technology Center, Corporate R&D Headquarters, KONICA MINOLTA, INC., 2970 Ishikawa-Machi, Hachioji-shi, Tokyo 192-8505, Japan
| | - K Hiyama
- Advanced Technology Center, Corporate R&D Headquarters, KONICA MINOLTA, INC., 2970 Ishikawa-Machi, Hachioji-shi, Tokyo 192-8505, Japan
| | - H Kita
- Advanced Technology Center, Corporate R&D Headquarters, KONICA MINOLTA, INC., 2970 Ishikawa-Machi, Hachioji-shi, Tokyo 192-8505, Japan
| | - T Hattori
- Department of Biomolecular Engineering, Graduate School of Engineering, Tohoku University, 6-6-11 Aramaki-Aoba, Aoba-ku, Sendai 980-8579, Japan.
| | - S Oi
- Department of Chemical Engineering, Graduate School of Engineering, Tohoku University, 6-6-11 Aramaki-Aoba, Aoba-ku, Sendai 980-8579, Japan.
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14
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Munakata M, Hattori T, Konno S, Nakayama F, Inoue N, Ito H, Nakamura T, Hozawa A. Overtime is associated with increased cardio-metabolic risks possibly preceding endothelial damage: Miyagi Karoshi prevention study for teachers. Atherosclerosis 2020. [DOI: 10.1016/j.atherosclerosis.2020.10.351] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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15
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Yamasaki T, Hattori T, Kakita K, Oota K, Miyai N, Nakamura R, Sawanishi T, Kinoshita N. Quantitative analysis of the isolation area after larger-size laser balloon ablation. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
The visually guided laser balloon ablation is a balloon-based catheter ablation technology used for atrial fibrillation (AF) ablation in recent years. This balloon catheter consists of a compliant balloon that has the capability of real-time endoscopic visualization of the targeted pulmonary vein (PV). The sizeable balloon is usually inflated to obtain optimal PV occlusion. The isolation area after laser balloon (LB) ablation was reported to be smaller than that after cryoballoon ablation. However, when LB is inflated with its maximum pressure, it can visualize wide-area PV antrum. Thereby, we suspected that larger-size LB can create wider isolation area.
Purpose
The aim of this study is to quantitatively evaluate the isolation area after LB ablation at the size larger than appropriate size for ablation in the pulmonary vein carina region.
Methods
We assessed 66 patients with AF who underwent LB ablation at the larger inflation size in our hospital during the period from July 2018 to July 2019. After LB ablation, we created voltage maps with a circular mapping catheter and calculated isolation areas with CARTO system.
Results
Figure shows a larger LB with its maximum pressure. PV antrum isolation was extended to the posterior wall in all patients. The left- and right-sided pulmonary vein antrum isolation area were 15.1±3.9 and 19.4±4.3 cm2, respectively.
Conclusion
LB at the larger inflation size with its maximum pressure can isolate wider-area circumferential PV antrum than previously reported. This method may be a new way of pulmonary vein antrum isolation.
Left atrial voltage mapping after PVI.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- T Yamasaki
- Takeda Hospital, Cardiac Arrhythmia, Kyoto, Japan
| | - T Hattori
- Takeda Hospital, Cardiac Arrhythmia, Kyoto, Japan
| | - K Kakita
- Takeda Hospital, Cardiac Arrhythmia, Kyoto, Japan
| | - K Oota
- Takeda Hospital, Cardiology, Kyoto, Japan
| | - N Miyai
- Takeda Hospital, Cardiology, Kyoto, Japan
| | - R Nakamura
- Takeda Hospital, Cardiology, Kyoto, Japan
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16
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Iwai T, Ogura K, Yamashita M, Ogata T, Hattori T, Mitsuyoshi T, Imagumbai T, Kokubo M. PO-1036: Analysis of serum pancreatic exocrine enzyme after radiotherapy for pancreatic carcinoma. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)01053-7] [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: 10/22/2022]
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17
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Hattori T. Trend of strengthening clearance regulation in Japan and concerns about its worldwide effects on regulations for natural and artificial radionuclides. Ann ICRP 2020; 49:98-112. [PMID: 33108219 DOI: 10.1177/0146645320956518] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The Nuclear Regulation Authority (NRA) of Japan invited comments from the public on a revised guide on measurement and evaluation for clearance in 2019, which included a strict decision on how to treat uncertainties in the measurement and the nuclide vector. To resolve the issue on the uncertainty in clearance, a probabilistic approach had been established previously in the Atomic Energy Society of Japan Standard and incorporated into International Atomic Energy Agency (IAEA) Safety Report No. 67. NRA's new decision on the uncertainty in clearance was up to 10 times stricter than the probabilistic approach. This issue has been discussed at an international level in the framework of the ongoing revision of IAEA Safety Guide RS-G-1.7. This discussion on the uncertainty in clearance has raised serious concerns about its effects on other radiological protection regulations worldwide. This is because if we need strict treatment for the uncertainty in clearance, the same or even stricter treatment for conformity assessment may have to be applied to other radiological protection criteria for doses exceeding 10 µSv year-1. Radiological protection experts including regulators, professionals, and operators should be aware of the essential meaning of the radiological protection criteria by considering the background scientific basis on which they were established.
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Affiliation(s)
- T Hattori
- Nuclear Technology Research Laboratory, Central Research Institute of Electric Power Industry, 2-11-1 Iwadokita, Komae-shi, Tokyo, 201-8511, Japan
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18
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Bauer R, Tse JS, Komatsu K, Machida S, Hattori T. Slow compression of crystalline ice at low temperature. Nature 2020; 585:E9-E10. [PMID: 32939064 DOI: 10.1038/s41586-020-2697-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 08/10/2020] [Indexed: 11/09/2022]
Affiliation(s)
- R Bauer
- Department of Physics and Engineering Physics, University of Saskatchewan, Saskatchewan, Saskatoon, Canada
| | - J S Tse
- Department of Physics and Engineering Physics, University of Saskatchewan, Saskatchewan, Saskatoon, Canada.
| | - K Komatsu
- Geochemical Research Center (GCRC), Graduate School of Science, The University of Tokyo, Tokyo, Japan
| | - S Machida
- Neutron Science and Technology Center, CROSS, Tokai, Japan
| | - T Hattori
- J-PARC Center, Japan Atomic Energy Agency, Naka-gun, Japan
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19
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Urushihara M, Kondo S, Kinoshita Y, Ozaki N, Jamba A, Nagai T, Fujioka K, Hattori T, Kagami S. (Pro)renin receptor promotes crescent formation via the ERK1/2 and Wnt/β-catenin pathways in glomerulonephritis. Am J Physiol Renal Physiol 2020; 319:F571-F578. [PMID: 32830537 DOI: 10.1152/ajprenal.00250.2020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
(Pro)renin receptor [(P)RR] has multiple functions, but its regulation and role in the pathogenesis in glomerulonephritis (GN) are poorly defined. The aims of the present study were to determine the effects of direct renin inhibition (DRI) and demonstrate the role of (P)RR on the progression of crescentic GN. The anti-glomerular basement membrane nephritis rat model developed progressive proteinuria (83.64 ± 10.49 mg/day) and glomerular crescent formation (percent glomerular crescent: 62.1 ± 2.3%) accompanied by increased macrophage infiltration and glomerular expression of monocyte chemoattractant protein (MCP)-1, (P)RR, phospho-extracellular signal-regulated kinase (ERK)1/2, Wnt4, and active β-catenin. Treatment with DRI ameliorated proteinuria (20.33 ± 5.88 mg/day) and markedly reduced glomerular crescent formation (20.9 ± 2.6%), induction of macrophage infiltration, (P)RR, phospho-ERK1/2, Wnt4, and active β-catenin. Furthermore, primary cultured parietal epithelial cells stimulated by recombinant prorenin showed significant increases in cell proliferation. Notably, while the ERK1/2 inhibitor PD98059 or (P)RR-specific siRNA treatment abolished the elevation in cell proliferation, DRI treatment did not abrogate this elevation. Moreover, cultured mesangial cells showed an increase in prorenin-induced MCP-1 expression. Interestingly, (P)RR or Wnt4-specific siRNA treatment or the β-catenin antagonist XAV939 inhibited the elevation of MCP-1 expression, whereas DRI did not. These results suggest that (P)RR regulates glomerular crescent formation via the ERK1/2 signaling and Wnt/β-catenin pathways during the course of anti-glomerular basement membrane nephritis and that DRI mitigates the progression of crescentic GN through the reduction of (P)RR expression but not inhibition of prorenin binding to (P)RR.
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Affiliation(s)
- Maki Urushihara
- Department of Pediatrics, Institute of Health Biosciences, The Tokushima University Graduate School, Tokushima, Japan
| | - Shuji Kondo
- Department of Pediatrics, Institute of Health Biosciences, The Tokushima University Graduate School, Tokushima, Japan
| | - Yukiko Kinoshita
- Department of Pediatrics, Institute of Health Biosciences, The Tokushima University Graduate School, Tokushima, Japan
| | - Natsuko Ozaki
- Department of Pediatrics, Institute of Health Biosciences, The Tokushima University Graduate School, Tokushima, Japan
| | - Ariunbold Jamba
- Department of Pediatrics, Institute of Health Biosciences, The Tokushima University Graduate School, Tokushima, Japan
| | - Takashi Nagai
- Department of Pediatrics, Institute of Health Biosciences, The Tokushima University Graduate School, Tokushima, Japan
| | - Keisuke Fujioka
- Department of Pediatrics, Institute of Health Biosciences, The Tokushima University Graduate School, Tokushima, Japan
| | - Tomoki Hattori
- Department of Pediatrics, Institute of Health Biosciences, The Tokushima University Graduate School, Tokushima, Japan
| | - Shoji Kagami
- Department of Pediatrics, Institute of Health Biosciences, The Tokushima University Graduate School, Tokushima, Japan
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20
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Ohara M, Hattori T, Yokota T. Progressive supranuclear palsy often develops idiopathic normal pressure hydrocephalus‐like magnetic resonance imaging features. Eur J Neurol 2020; 27:1930-1936. [DOI: 10.1111/ene.14322] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Accepted: 05/07/2020] [Indexed: 01/07/2023]
Affiliation(s)
- M. Ohara
- Department of Neurology and Neurological Science Graduate School of Medical and Dental Science Tokyo Medical and Dental University Tokyo Japan
| | - T. Hattori
- Department of Neurology and Neurological Science Graduate School of Medical and Dental Science Tokyo Medical and Dental University Tokyo Japan
| | - T. Yokota
- Department of Neurology and Neurological Science Graduate School of Medical and Dental Science Tokyo Medical and Dental University Tokyo Japan
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21
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Hattori T, Imaoka A, Akiyoshi T, Ohtani H. Irinotecan-induced gastrointestinal damage impairs the absorption of dabigatran etexilate. Biopharm Drug Dispos 2020; 40:315-324. [PMID: 31642538 DOI: 10.1002/bdd.2205] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 08/29/2019] [Accepted: 09/12/2019] [Indexed: 01/29/2023]
Abstract
Irinotecan causes serious gastrointestinal damage. Dabigatran etexilate (DABE), an oral anticoagulant and substrate of P-glycoprotein (P-gp), is poorly absorbed and exhibits low bioavailability in humans. The aim of this study was to evaluate the effects of irinotecan-induced gastrointestinal damage on the pharmacokinetics/pharmacodynamics (PK/PD) of DABE. Irinotecan was administered intravenously to rats for 4 days to induce gastrointestinal damage. To investigate the PK profile of dabigatran (DAB), an active moiety of DABE, DABE was administered orally on day 5, and then DAB was administered intravenously on day 6. To evaluate the PD profile of DAB, the activated partial thromboplastin time (APTT) was measured. The protein expression level of intestinal P-gp was evaluated. In the irinotecan-treated rats, the area under the concentration-time curve of DAB after the oral administration of DABE and the bioavailability of DABE were decreased significantly. The APTT ratio also decreased, suggesting that the impaired efficacy of DABE was attributable to a reduction in its bioavailability. The expression of intestinal P-gp was higher in the irinotecan-treated rats. Taking into consideration the histological damage caused to the intestinal epithelium, both the increased P-gp expression and the reduced passive diffusion were considered to be responsible for the reduction in the bioavailability of DABE.
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Affiliation(s)
- Tomoki Hattori
- Division of Clinical Pharmacokinetics, Faculty of Pharmaceutical Sciences, Keio University Faculty of Pharmacy Tokyo, 1-5-30, Shibakoen Minato-ku, Tokyo, 105-8512, Japan
| | - Ayuko Imaoka
- Division of Clinical Pharmacokinetics, Faculty of Pharmaceutical Sciences, Keio University Faculty of Pharmacy Tokyo, 1-5-30, Shibakoen Minato-ku, Tokyo, 105-8512, Japan
| | - Takeshi Akiyoshi
- Division of Clinical Pharmacokinetics, Faculty of Pharmaceutical Sciences, Keio University Faculty of Pharmacy Tokyo, 1-5-30, Shibakoen Minato-ku, Tokyo, 105-8512, Japan
| | - Hisakazu Ohtani
- Division of Clinical Pharmacokinetics, Faculty of Pharmaceutical Sciences, Keio University Faculty of Pharmacy Tokyo, 1-5-30, Shibakoen Minato-ku, Tokyo, 105-8512, Japan
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22
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Imakiire R, Fujisawa T, Nagao M, Tokuda R, Hattori T, Kainuma K, Kawano Y. Basophil Activation Test Based on CD203c Expression in the Diagnosis of Fish Allergy. Allergy Asthma Immunol Res 2020; 12:641-652. [PMID: 32400130 PMCID: PMC7224992 DOI: 10.4168/aair.2020.12.4.641] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 02/09/2020] [Accepted: 02/16/2020] [Indexed: 12/19/2022]
Abstract
Purpose The basophil activation test (BAT) has been reported to be useful for the diagnosis of various food allergies, such as allergy to peanut, but not to fish. This study aimed to evaluate the diagnostic performance of the BAT for fish allergy. Methods We performed a retrospective review of patients with fish allergy who underwent the BAT using a panel of fish extracts (15 kinds) to examine the differential reactivity to several species of fish. The BAT score for each extract was expressed as the ratio of CD203chigh% with the extract to that with anti-IgE antibody. Clinical reactivity to each fish was confirmed by positive oral food challenge or a typical history of fish-induced immediate allergy symptoms. Receiver-operating-characteristic (ROC) analysis was performed to evaluate the diagnostic performance. Results Fifty-one patients with fish allergy were analyzed. Using extracts of 15 species of fish, the BAT was performed a total of 184 times on the patients. Clinical allergy to each species of fish was confirmed in 90 (48.9%) of those tests. ROC analysis yielded high areas under the curve for the BAT scores for the 5 most common fish species (0.72–0.88). The diagnostic accuracy ranged from 0.74 to 0.86. Using a tentative cutoff value of 0.3 deduced from the ROC analyses of the 5 fish species, the accuracy for other fish allergic reactions was generally high (0.6–1.0), except the fish tested in a small number of patients. Conclusions The BAT score based on CD203c expression may be useful for fish allergy diagnosis, especially since a large variety of fish can be tested by the BAT using fish extracts prepared by a simple method.
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Affiliation(s)
- Ryo Imakiire
- Institute for Clinical Research, National Hospital Organization Mie National Hospital, Tsu, Japan.,Department of Pediatrics, Kagoshima University Graduate School of Medicine, Kagoshima, Japan
| | - Takao Fujisawa
- Institute for Clinical Research, National Hospital Organization Mie National Hospital, Tsu, Japan.
| | - Mizuho Nagao
- Institute for Clinical Research, National Hospital Organization Mie National Hospital, Tsu, Japan
| | - Reiko Tokuda
- Institute for Clinical Research, National Hospital Organization Mie National Hospital, Tsu, Japan
| | - Tomoki Hattori
- Institute for Clinical Research, National Hospital Organization Mie National Hospital, Tsu, Japan
| | - Keigo Kainuma
- Institute for Clinical Research, National Hospital Organization Mie National Hospital, Tsu, Japan
| | - Yoshifumi Kawano
- Department of Pediatrics, Kagoshima University Graduate School of Medicine, Kagoshima, Japan
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23
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Abstract
Paratrichaptum accuratum is a large conspicuous polypore fungus growing on dead or living angiosperm trees in subtropical-boreal areas of China, Indonesia, Japan, and Taiwan. The present study places P. accuratum in the family Gloeophyllaceae that belongs to the order Gloeophyllales within Agaricomycetes (Basidiomycota), based on evidence derived from morphological and ecological characteristics, and phylogenetic analyses of sequences of nuclear rDNA regions (5.8S, nuc 18S, nuc 28S) and protein-coding genes (rpb1, rpb2, and tef1). The analyses presented in this study also give strong support for including Jaapia in Gloeophyllaceae and Gloeophyllales. Thus, the names Jaapiaceae and Jaapiales are considered here as synonyms of Gloeophyllaceae and Gloeophyllales. Since Paratrichaptum represents the earliest diverging lineage in Gloeophyllales, pileate basidiocarps and brown rot appear to be ancestral states of Gloeophyllales. Paratrichaptum accuratum may represent a relic species, according to its phylogenetic position, peculiar distribution pattern and rare occurrence.
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Affiliation(s)
- C-C Chen
- Department of Plant Pathology, National Chung Hsing University, Taichung 40227, Taiwan
| | - B Cao
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - T Hattori
- Forestry and Forest Products Research Institute, Tsukuba, Ibaraki 305-8687, Japan
| | - B-K Cui
- Institute of Microbiology, Beijing Forestry University, Beijing 100083, China
| | - C-Y Chen
- Department of Plant Pathology, National Chung Hsing University, Taichung 40227, Taiwan
| | - S-H Wu
- Department of Plant Pathology, National Chung Hsing University, Taichung 40227, Taiwan.,Department of Biology, National Museum of Natural Science, Taichung 40453, Taiwan
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24
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Ogura K, Imagumbai T, Kosaka Y, Hattori T, Hiraoka S, Ogata T, Kokubo M. Outcomes of Radiotherapy for Brain Metastases Patients without Active Extracranial Disease. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.2353] [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: 10/26/2022]
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25
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Ogata T, Kosaka Y, Imagumbai T, Ogura K, Hattori T, Hiraoka S, Kokubo M. Outcome of Stereotactic Body Radiotherapy for Patients with Histologically Proven Stage I Non-Small-Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.2422] [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: 10/26/2022]
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26
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Asano T, Hattori T, Tanaka KI, Yamakawa N, Suemasu S, Aida S, Kataoka M, Mizushima T, Takenaga M. Antinociception by fluoro-loxoprofen, a novel non-steroidal anti-inflammatory drug with less ulcerogenic effects, in rat models of inflammatory pain. Eur J Pharmacol 2019; 844:253-258. [PMID: 30529473 DOI: 10.1016/j.ejphar.2018.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 12/01/2018] [Accepted: 12/05/2018] [Indexed: 10/27/2022]
Abstract
The use of non-steroidal anti-inflammatory drugs (NSAIDs) for the treatment of inflammatory pain is limited by gastrointestinal complications. The rapid action of NSAIDs is associated with better pain relief. Previously, we demonstrated that fluoro-loxoprofen, a novel NSAID, has less ulcerogenic potential than other NSAIDs, attributable to its gastroprotective properties. The aim of this study was to investigate and compare the effects of fluoro-loxoprofen on inflammatory pain in rats with those of other NSAIDs. Oral administration of fluoro-loxoprofen, loxoprofen, and celecoxib resulted in equivalent analgesic action against yeast-induced inflammatory pain. The antinociceptive effect of fluoro-loxoprofen was maximized within 1 h after administration, which is less time than that observed for loxoprofen (2 h) and celecoxib (3 h). We confirmed that both fluoro-loxoprofen and loxoprofen suppressed the increases in prostaglandin E2 in inflamed paws. In addition to yeast-induced pain, fluoro-loxoprofen produced a similar effect against adjuvant-induced inflammatory pain, with faster peak analgesic effects than those observed for loxoprofen and celecoxib. Taken together, these results suggest that the analgesic effect of fluoro-loxoprofen is equivalent to that of loxoprofen and celecoxib. Moreover, the analgesic effect of fluoro-loxoprofen against inflammatory pain was more rapid than that of other NSAIDs, and this may be associated with its rapid absorption property.
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Affiliation(s)
- Teita Asano
- Institute of Medical Science, St. Marianna University School of Medicine, 2-16-1, Sugao, Miyamae-ku, Kawasaki 216-8512, Japan.
| | - Tomoki Hattori
- Division of Drug Discovery and Development, Faculty of Pharmacy, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo 105-8512, Japan
| | - Ken-Ichiro Tanaka
- Research Institute of Pharmaceutical Sciences, Faculty of Pharmacy, Musashino University, 1-1-20, Shin-machi, Nishi-Tokyo 202-8585, Japan
| | - Naoki Yamakawa
- School of Pharmacy, Shujitsu University, 1-6-1, Nishi-kawahara, Naka-ku, Okayama 703-8516, Japan
| | - Shintaro Suemasu
- Division of Drug Discovery and Development, Faculty of Pharmacy, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo 105-8512, Japan
| | - Shuji Aida
- Division of Drug Discovery and Development, Faculty of Pharmacy, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo 105-8512, Japan
| | - Marika Kataoka
- Division of Drug Discovery and Development, Faculty of Pharmacy, Keio University, 1-5-30, Shibakoen, Minato-ku, Tokyo 105-8512, Japan
| | - Tohru Mizushima
- LTT Bio-Pharma Co., Ltd, Shiodome Building 3 F, 1-2-20 Kaigan, Minato-ku, Tokyo 105-0022, Japan.
| | - Mitsuko Takenaga
- Institute of Medical Science, St. Marianna University School of Medicine, 2-16-1, Sugao, Miyamae-ku, Kawasaki 216-8512, Japan
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27
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Kawauchi M, Watanabe T, Hattori T, Suzuki A, Ishizu A, Jodo S. Eosinophilic granulomatosis with polyangiitis mimicking peripheral T-cell lymphoma, not otherwise specified. Scand J Rheumatol 2018; 48:171-172. [PMID: 30153088 DOI: 10.1080/03009742.2018.1493746] [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: 10/28/2022]
Affiliation(s)
- M Kawauchi
- a Department of Internal Medicine , Tomakomai City Hospital , Tomakomai , Japan
| | - T Watanabe
- a Department of Internal Medicine , Tomakomai City Hospital , Tomakomai , Japan
| | - T Hattori
- a Department of Internal Medicine , Tomakomai City Hospital , Tomakomai , Japan
| | - A Suzuki
- b Department of Pathology , KKR Sapporo Medical Center , Sapporo , Japan
| | - A Ishizu
- c Faculty of Health Sciences , Hokkaido University , Sapporo , Japan
| | - S Jodo
- a Department of Internal Medicine , Tomakomai City Hospital , Tomakomai , Japan
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28
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Ishii Y, Komatsu K, Nakano S, Machida S, Hattori T, Sano-Furukawa A, Kagi H. Pressure-induced stacking disorder in boehmite. Phys Chem Chem Phys 2018; 20:16650-16656. [PMID: 29873355 DOI: 10.1039/c8cp02565g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The structure of an aluminum layered hydroxide, boehmite (γ-AlOOH), as a function of pressure was studied by using in situ synchrotron X-ray and neutron diffraction. Peak broadening, which is only found for hkl (h ≠ 0) peaks in the X-ray diffraction patterns, is explained by stacking disorder accompanying a continuously increasing displacement of the AlO6 octahedral layer along the a-axis. This finding could be the first experimental result for pressure-induced stacking disorder driven by continuous layer displacement. The magnitude of the layer displacement was estimated from the X-ray scattering profile calculation based on the stacking disordered structure model. Hydrogen bond geometries of boehmite, obtained by structure refinements of the observed neutron diffraction patterns for the deuterated sample up to 10 GPa, show linearly approaching O-D covalent and DO hydrogen bond distances and they merge below 26 GPa. Pressure-induced stacking disorder makes the electrostatic potential of hydrogen bonds asymmetric, yielding less chance for proton-tunnelling.
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Affiliation(s)
- Y Ishii
- Geochemical Research Center, Graduate School of Science, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan
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29
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Enoki S, Hamaguchi Y, Suzuki S, Fujisawa H, Hattori T, Arita K, Yamaguchi C, Mikami M, Nagasaka S, Tanaka K. Physiological characterization of leaf and internode after bud break in Japanese indigenous Koshu grape by comparative RNA sequencing analysis. PLoS One 2018; 13:e0194807. [PMID: 29566077 PMCID: PMC5864062 DOI: 10.1371/journal.pone.0194807] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Accepted: 03/09/2018] [Indexed: 01/18/2023] Open
Abstract
Koshu is indigenous to Japan and considered the most important wine grape in Japan. Koshu grape berry possesses characteristics that make it unique from European V. vinifera as wine grape. However, the physiological characteristics of Koshu leaf and internode remain unknown. An understanding of those characteristics would contribute to improvements in Koshu cultivation, thereby enhancing grape berry and wine quality. To identify the genes responsible for the physiological characteristics of Koshu, we comprehensively analyzed leaf and internode differences at the transcriptome level between Koshu and Pinot Noir by RNA sequencing. A total of 248 and 131 differentially expressed genes (DEGs) were detected in leaves and internodes, respectively. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses of these DEGs revealed that "flavonoid biosynthesis" and "glutathione metabolism" pathways were significantly enriched in Koshu leaves. On the other hand, when internodes were compared, "flavonoid"-related GO terms were specifically detected in Koshu. KEGG pathway enrichment analysis suggested that the expression of such genes as leucoanthocyanidin reductase and flavonol synthase in the flavonoid biosynthesis pathway was higher in Koshu than Pinot Noir. Measurement of the relative expression levels of these genes by RT-qPCR validated the results obtained by RNA sequencing. The characteristics of Koshu leaf and internode, which are expected to produce flavonoids with antibacterial activity and UV protection function, would suit Japanese climate as a survival strategy.
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Affiliation(s)
- Shinichi Enoki
- Laboratory of Fruit Genetic Engineering, The Institute of Enology and Viticulture, University of Yamanashi, Yamanashi, Japan
| | - Yu Hamaguchi
- NODAI Genome Research Center, Tokyo University of Agriculture, Tokyo, Japan
| | - Shunji Suzuki
- Laboratory of Fruit Genetic Engineering, The Institute of Enology and Viticulture, University of Yamanashi, Yamanashi, Japan
| | - Hiroyuki Fujisawa
- Department of Agriculture, Tokyo University of Agriculture, Kanagawa, Japan
| | - Tomoki Hattori
- Laboratory of Fruit Genetic Engineering, The Institute of Enology and Viticulture, University of Yamanashi, Yamanashi, Japan
| | - Kayo Arita
- Laboratory of Fruit Genetic Engineering, The Institute of Enology and Viticulture, University of Yamanashi, Yamanashi, Japan
| | - Chiho Yamaguchi
- Laboratory of Fruit Genetic Engineering, The Institute of Enology and Viticulture, University of Yamanashi, Yamanashi, Japan
| | - Masachika Mikami
- Laboratory of Fruit Genetic Engineering, The Institute of Enology and Viticulture, University of Yamanashi, Yamanashi, Japan
| | - Shu Nagasaka
- Laboratory of Fruit Genetic Engineering, The Institute of Enology and Viticulture, University of Yamanashi, Yamanashi, Japan
| | - Keisuke Tanaka
- NODAI Genome Research Center, Tokyo University of Agriculture, Tokyo, Japan
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30
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Imakiire R, Hattori T, Kainuma K, Tokuda R, Kameda K, Suzuki N, Kuwabara Y, Kobori T, Nagao M, Fujisawa T. Clinical utility of basophil activation test in diagnosis of fish allergy. J Allergy Clin Immunol 2018. [DOI: 10.1016/j.jaci.2017.12.783] [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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31
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Nahata M, Mizuhara Y, Sadakane C, Watanabe J, Fujitsuka N, Hattori T. Influence of food on the gastric motor effect of the Kampo medicine rikkunshito in rat. Neurogastroenterol Motil 2018; 30. [PMID: 28776825 DOI: 10.1111/nmo.13177] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 07/05/2017] [Indexed: 12/14/2022]
Abstract
BACKGROUND Rikkunshito, one of the Kampo medicines, is widely prescribed as a remedy for various upper gastrointestinal syndromes. The effect of rikkunshito is related to endogenous ghrelin and its active ingredient atractylodin enhances ghrelin receptor signaling. Kampo medicines are traditionally administered before or between meals; however, no definitive benefit of the timing of administration has been proven yet. To clarify the influence of food on the pharmacological action of rikkunshito, we investigated the gastric motor activity and pharmacokinetic profiles of atractylodin after the administration of rikkunshito in fasted and fed rats. METHODS Phase III-like contractions in the gastric antrum after an injection of ghrelin were measured using a strain gauge force transducer. Rikkunshito was administered to rats during fasting or after a nutrient test meal. Ghrelin was injected 30 minutes later and gastric motility was evaluated. Furthermore, after rikkunshito administration, the pharmacokinetic profiles of atractylodin in the plasma and brain of fasted and free-fed rats were assessed. KEY RESULTS Rikkunshito administration potentiated ghrelin-induced phase III-like contractions under fasting conditions. This effect was attenuated in animals fed a test meal. Atractylodin was detected pharmacokinetically in the plasma and brain after rikkunshito administration in rats, and free-fed rats exhibited a decreased maximum concentration of plasma atractylodin and a delayed time to reach the maximum concentration. CONCLUSIONS & INFERENCES We show that the pharmacological action of rikkunshito is influenced by food in rats. The efficacy of rikkunshito may be associated with decreased absorption of its active ingredient atractylodin when food is in the stomach.
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Affiliation(s)
- M Nahata
- Tsumura Kampo Research Laboratories, Tsumura & Co., Ibaraki, Japan
| | - Y Mizuhara
- Tsumura Kampo Research Laboratories, Tsumura & Co., Ibaraki, Japan
| | - C Sadakane
- Tsumura Kampo Research Laboratories, Tsumura & Co., Ibaraki, Japan
| | - J Watanabe
- Tsumura Kampo Research Laboratories, Tsumura & Co., Ibaraki, Japan
| | - N Fujitsuka
- Tsumura Kampo Research Laboratories, Tsumura & Co., Ibaraki, Japan
| | - T Hattori
- Tsumura Kampo Research Laboratories, Tsumura & Co., Ibaraki, Japan
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Shimada H, Nakashizuka H, Hattori T, Mori R, Mizutani Y, Yuzawa M. Vitreous Prolapse through the Scleral Wound in 25-Gauge Transconjunctival Vitrectomy. Eur J Ophthalmol 2018; 18:659-62. [DOI: 10.1177/112067210801800431] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- H. Shimada
- Department of Ophthalmology, School of Medicine, Nihon University, Tokyo - Japan
| | - H. Nakashizuka
- Department of Ophthalmology, School of Medicine, Nihon University, Tokyo - Japan
| | - T. Hattori
- Department of Ophthalmology, School of Medicine, Nihon University, Tokyo - Japan
| | - R. Mori
- Department of Ophthalmology, School of Medicine, Nihon University, Tokyo - Japan
| | - Y. Mizutani
- Department of Ophthalmology, School of Medicine, Nihon University, Tokyo - Japan
| | - M. Yuzawa
- Department of Ophthalmology, School of Medicine, Nihon University, Tokyo - Japan
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Shimada H, Nakashizuka H, Hattori T, Mori R, Mizutani Y, Yuzawa M. Conjunctival Displacement to the Corneal Side for Oblique-Parallel Insertion in 25-Gauge Vitrectomy. Eur J Ophthalmol 2018; 18:848-51. [PMID: 18850574 DOI: 10.1177/112067210801800535] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Purpose To assess the usefulness of the method of oblique-parallel trocar insertion with conjunctival displacement to the corneal side in 25-gauge (G) transconjunctival vitrectomy. Methods 25-G vitrectomy was performed in 77 consecutive eyes. Before making oblique-parallel trocar insertions, the conjunctiva was conventionally displaced superiorly in 35 eyes, but was displaced toward the corneal side in 42 eyes. After surgery, the distance between the scleral and conjunctival wounds was measured with calipers. The frequency of scleral wound exposure was assessed. Results After cannula removal at the end of surgery, inferior repositioning of the superiorly displaced conjunctiva was observed, while marked posterior repositioning of the corneal side caused displacement of the conjunctiva due to gravity. The superior displacement distances between the sclera and conjunctival wounds were 2.4±0.3 mm at the infusion port, 2.0±0.4 mm at the superior temporal port, and 1.9±0.4 mm at the superior nasal port, while the corresponding distances for corneal side displacement were 3.6±0.5, 3.5±0.5, and 2.5±0.5 mm, and were all significantly (p<0.0001) greater with corneal side displacement. The frequency of scleral wound exposure due to conjunctival damage around the cannula (infusion port) was significantly (p=0.0164) lower for corneal side displacement (0/42; 16.7%) than superior displacement (5/35; 14.3%). There was no postoperative endophthalmitis in all 77 patients studied. Conclusions In 25-G transconjunctival vitrectomy, using oblique-parallel trocar insertions with the conjunctiva displaced toward the corneal side results in marked posterior repositioning of the conjunctiva after cannula extraction. Corneal side conjunctival displacement is technically easy and completely covers the scleral wound. This method is expected to be effective in preventing endophthalmitis.
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Affiliation(s)
- H. Shimada
- Department of Ophthalmology, School of Medicine, Nihon University, Tokyo - Japan
| | - H. Nakashizuka
- Department of Ophthalmology, School of Medicine, Nihon University, Tokyo - Japan
| | - T. Hattori
- Department of Ophthalmology, School of Medicine, Nihon University, Tokyo - Japan
| | - R. Mori
- Department of Ophthalmology, School of Medicine, Nihon University, Tokyo - Japan
| | - Y. Mizutani
- Department of Ophthalmology, School of Medicine, Nihon University, Tokyo - Japan
| | - M. Yuzawa
- Department of Ophthalmology, School of Medicine, Nihon University, Tokyo - Japan
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Hattori T, Sakai H, Tokunaga Y, Kambe S, Matsuda TD, Haga Y. Evidence for Spin Singlet Pairing with Strong Uniaxial Anisotropy in URu_{2}Si_{2} Using Nuclear Magnetic Resonance. Phys Rev Lett 2018; 120:027001. [PMID: 29376726 DOI: 10.1103/physrevlett.120.027001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Indexed: 06/07/2023]
Abstract
In order to identify the spin contribution to superconducting pairing compatible with the so-called "hidden order", ^{29}Si nuclear magnetic resonance measurements have been performed using a high-quality single crystal of URu_{2}Si_{2}. A clear reduction of the ^{29}Si Knight shift in the superconducting state has been observed under a magnetic field applied along the crystalline c axis, corresponding to the magnetic easy axis. These results provide direct evidence for the formation of spin-singlet Cooper pairs. Consequently, results indicating a very tiny change of the in-plane Knight shift reported previously demonstrate extreme uniaxial anisotropy for the spin susceptibility in the hidden order state.
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Affiliation(s)
- T Hattori
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - H Sakai
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - Y Tokunaga
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - S Kambe
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - T D Matsuda
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - Y Haga
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
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Hassanein A, Salahuddin N, Matsuda A, Hattori T, Elfiky M. Fabrication of Electrochemical Sensor Based on Layered Double Hydroxide/Polypyrrole/Carbon Paste for Determination of an Alpha-adrenergic Blocking Agent Terazosin. ELECTROANAL 2018. [DOI: 10.1002/elan.201700321] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- A. Hassanein
- Department of Chemistry; Faculty of Science; Tanta University; Egypt
| | - N. Salahuddin
- Department of Chemistry; Faculty of Science; Tanta University; Egypt
| | - A. Matsuda
- Department of Electrical and Electronic Information Engineering; Toyohashi University of Technology; Japan
| | - T. Hattori
- Department of Electrical and Electronic Information Engineering; Toyohashi University of Technology; Japan
| | - M. Elfiky
- Department of Chemistry; Faculty of Science; Tanta University; Egypt
- Department of Electrical and Electronic Information Engineering; Toyohashi University of Technology; Japan
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Enoki S, Hattori T, Ishiai S, Tanaka S, Mikami M, Arita K, Nagasaka S, Suzuki S. Vanillylacetone up-regulates anthocyanin accumulation and expression of anthocyanin biosynthetic genes by inducing endogenous abscisic acid in grapevine tissues. J Plant Physiol 2017; 219:22-27. [PMID: 28961464 DOI: 10.1016/j.jplph.2017.09.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 09/12/2017] [Accepted: 09/16/2017] [Indexed: 06/07/2023]
Abstract
We investigated the effect of vanillylacetone (VA) on anthocyanin accumulation with aim of improving grape berry coloration. Spraying Vitis vinifera cv. Muscat Bailey A berries with VA at veraison increased sugar/acid ratio, an indicator of maturation and total anthocyanin accumulation. To elucidate the molecular mechanism underlying the effect of VA on anthocyanin accumulation, in vitro VA treatment of a grapevine cell culture was carried out. Endogenous abscisic acid (ABA) content was higher in the VA-treated cell cultures than in control at 3h after treatment. Consistent with this, the relative expression levels of anthocyanin-synthesis-related genes, including DFR, LDOX, MybA1 and UFGT, in VA-treated cell cultures were much higher than those in control, and high total anthocyanin accumulation was noted in the VA-treated cell cultures as well. These results suggest that VA up-regulates the expression of genes leading to anthocyanin accumulation by inducing endogenous ABA. In addition, VA increased total anthocyanin content in a dose-dependent manner. Although VA treatment in combination with exogenous ABA did not exhibit any synergistic effect, treatment with VA alone showed an equivalent effect to that with exogenous ABA alone on total anthocyanin accumulation. These findings point to the possibility of using VA for improving grape berry coloration.
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Affiliation(s)
- Shinichi Enoki
- Laboratory of Fruit Genetic Engineering, The Institute of Enology and Viticulture, University of Yamanashi, Yamanashi, Japan
| | - Tomoki Hattori
- Laboratory of Fruit Genetic Engineering, The Institute of Enology and Viticulture, University of Yamanashi, Yamanashi, Japan
| | - Shiho Ishiai
- Laboratory of Fruit Genetic Engineering, The Institute of Enology and Viticulture, University of Yamanashi, Yamanashi, Japan
| | - Sayumi Tanaka
- Laboratory of Fruit Genetic Engineering, The Institute of Enology and Viticulture, University of Yamanashi, Yamanashi, Japan
| | - Masachika Mikami
- Laboratory of Fruit Genetic Engineering, The Institute of Enology and Viticulture, University of Yamanashi, Yamanashi, Japan
| | - Kayo Arita
- Laboratory of Fruit Genetic Engineering, The Institute of Enology and Viticulture, University of Yamanashi, Yamanashi, Japan
| | - Shu Nagasaka
- Laboratory of Fruit Genetic Engineering, The Institute of Enology and Viticulture, University of Yamanashi, Yamanashi, Japan
| | - Shunji Suzuki
- Laboratory of Fruit Genetic Engineering, The Institute of Enology and Viticulture, University of Yamanashi, Yamanashi, Japan.
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Ohira-Kawamura S, Oku T, Watanabe M, Takahashi R, Munakata K, Takata S, Sakaguchi Y, Ishikado M, Ohuchi K, Hattori T, Kira H, Sakai K, Aso T, Yamauchi Y, Isomae S. Sample environment at the J-PARC MLF. JNR 2017. [DOI: 10.3233/jnr-170046] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- S. Ohira-Kawamura
- J-PARC Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - T. Oku
- J-PARC Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - M. Watanabe
- J-PARC Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - R. Takahashi
- J-PARC Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - K. Munakata
- Comprehensive Research Organization for Science and Society (CROSS), Tokai, Ibaraki 319-1106, Japan
| | - S. Takata
- J-PARC Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - Y. Sakaguchi
- Comprehensive Research Organization for Science and Society (CROSS), Tokai, Ibaraki 319-1106, Japan
| | - M. Ishikado
- Comprehensive Research Organization for Science and Society (CROSS), Tokai, Ibaraki 319-1106, Japan
| | - K. Ohuchi
- Comprehensive Research Organization for Science and Society (CROSS), Tokai, Ibaraki 319-1106, Japan
| | - T. Hattori
- J-PARC Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - H. Kira
- Comprehensive Research Organization for Science and Society (CROSS), Tokai, Ibaraki 319-1106, Japan
| | - K. Sakai
- J-PARC Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - T. Aso
- J-PARC Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - Y. Yamauchi
- J-PARC Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - S. Isomae
- J-PARC Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
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Numasawa Y, Hattori T, Ishiai S, Kobayashi Z, Kamata T, Kotera M, Ishibashi S, Sanjo N, Mizusawa H, Yokota T. Components of depressive disorder due to raphe-nuclei damage: Subclass analysis of patients with brainstem infarction. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1794] [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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Higashi M, Ozaki K, Hattori T, Ishii T, Soga K, Sato N, Tomita M, Mizusawa H, Ishikawa K, Yokota T. Cerebellar ataxia subgroups can be differentiated by pontine magnetic resonance imaging. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.865] [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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Yamada A, Numasawa Y, Hattori T, Ozaki K, Ishibashi S, Nishida Y, Kanouchi T, Sanjo N, Takanori Y. Signal changes of skeletal muscle MRI in peripheral nerve disorders. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3016] [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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Manaka D, Nishitai R, Konishi S, Ohta T, Hattori T, Ann H, Kawaguchi K, Nishikawa Y, Kudo R, Hamasu S. Phase II study of Ccr-based dose-control of S-1 in the first-line chemotherapy of S-1/oxaliplatin (SOX) + bevacizumab regimen for advanced colorectal cancer. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx393.139] [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: 11/15/2022] Open
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Enoki S, Fujimori N, Yamaguchi C, Hattori T, Suzuki S. High Constitutive Overexpression of Glycosyl Hydrolase Family 17 Delays Floral Transition by Enhancing FLC Expression in Transgenic Arabidopsis. Plants (Basel) 2017; 6:plants6030031. [PMID: 28757594 PMCID: PMC5620587 DOI: 10.3390/plants6030031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 07/16/2017] [Accepted: 07/24/2017] [Indexed: 06/07/2023]
Abstract
Vitis vinifera glycosyl hydrolase family 17 (VvGHF17) is a grape apoplasmic β-1,3-glucanase, which belongs to glycosyl hydrolase family 17 in grapevines. β-1,3-glucanase is not only involved in plant defense response but also has various physiological functions in plants. Although VvGHF17 expression is negatively related to the length of inflorescence in grapevines, the physiological functions of VvGHF17 are still uncertain. To clarify the physiological functions of VvGHF17, we conducted a phenotypic analysis of VvGHF17-overexpressing Arabidopsis plants. VvGHF17-overexpressing Arabidopsis plants showed short inflorescence, similar to grapevines. These results suggested that VvGHF17 might negatively regulate the length of inflorescence in plants. VvGHF17 expression induced a delay of floral transition in Arabidopsis plants. The expression level of FLOWERING LOCUS C (FLC), known as a floral repressor gene, in inflorescence meristem of transgenic plants were increased by approximately 10-fold as compared with wild plants. These results suggest that VvGHF17 induces a delay of floral transition by enhancing FLC expression and concomitantly decreases the length of plant inflorescence.
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Affiliation(s)
- Shinichi Enoki
- Laboratory of Fruit Genetic Engineering, The Institute of Enology and Viticulture, University of Yamanashi, Yamanashi 400-0005, Japan.
| | - Nozomi Fujimori
- Laboratory of Fruit Genetic Engineering, The Institute of Enology and Viticulture, University of Yamanashi, Yamanashi 400-0005, Japan.
| | - Chiho Yamaguchi
- Laboratory of Fruit Genetic Engineering, The Institute of Enology and Viticulture, University of Yamanashi, Yamanashi 400-0005, Japan.
| | - Tomoki Hattori
- Laboratory of Fruit Genetic Engineering, The Institute of Enology and Viticulture, University of Yamanashi, Yamanashi 400-0005, Japan.
| | - Shunji Suzuki
- Laboratory of Fruit Genetic Engineering, The Institute of Enology and Viticulture, University of Yamanashi, Yamanashi 400-0005, Japan.
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Abstract
p-tert-Butylcalix[4]arenedicarboxylic acid, in which two distal hydroxy groups of p-tert-butylcalix[4]arene are replaced with carboxy groups, shows extraction selectivity toward Pd2+ ions by the formation of a 2 : 2 (M/L) complex.
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Affiliation(s)
- N. Morohashi
- Department of Biomolecular Engineering
- Graduate School of Engineering
- Tohoku University
- Aoba-ku
- Japan
| | - S. Iijima
- Department of Biomolecular Engineering
- Graduate School of Engineering
- Tohoku University
- Aoba-ku
- Japan
| | - K. Akasaka
- Department of Biomolecular Engineering
- Graduate School of Engineering
- Tohoku University
- Aoba-ku
- Japan
| | - T. Hattori
- Department of Biomolecular Engineering
- Graduate School of Engineering
- Tohoku University
- Aoba-ku
- Japan
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Ogino H, Fujimichi Y, Sasaki M, Hamada N, Iwasaki T, Yoshida K, Hattori T. Quantitative assessment of provability of radiation-related cancers considering unavoidable existence of unadjusted risk factors. J Radiol Prot 2016; 36:865-884. [PMID: 27739409 DOI: 10.1088/0952-4746/36/4/865] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The attribution of stochastic effects to exposure to ionizing radiation has been qualitatively discussed by introducing two distinct concepts of provability and probability. This study aims to develop a method of quantitatively assessing the provability of radiation-related cancers. To this end, the 'minimum provable dose' (MPD) was developed and applied to actual cancer mortality in Japan. The background lifetime risk of cancer mortality was calculated for the esophagus, stomach, colon, liver, lungs, skin, breasts, ovaries, bladder, and bone marrow as well as the age-specific risk coefficients reproducing those given in the 2007 Recommendations of the International Commission on Radiological Protection (ICRP). Comparing the relative ratio of MPDs, which was defined herein as the 'provability index' (PI), we quantitatively ranked radiation-related cancers for different tissues and organs predicated on provability for ages of 10, 30, 50, and 0-85+ years at exposure. We discuss the radiological protection of male emergency workers focusing on cancers highly prioritized according to the ranking (i.e. colon, bone marrow, and bladder). The present study proposed the system to quantitatively evaluate the level of radiological protection taking into account the variations of the background cancer risk on the provability of radiation-related cancers.
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Affiliation(s)
- H Ogino
- Radiation Safety Research Center, Nuclear Technology Research Laboratory, Central Research Institute of Electric Power Industry, 2-11-1, Iwado Kita, Komae-shi, Tokyo 201-8511, Japan
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Niwa S, Miki S, Sawai K, Hattori T. Experimental Evaluation of the Anchoring Efficiency of Bone Cement under Various Conditions, and Improved Cementing Techniques and Instrumentations for Total Hip Replacement. ACTA ACUST UNITED AC 2016; 13:197-202. [PMID: 6543799 DOI: 10.1243/emed_jour_1984_013_048_02] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Viscoelastic properties of acrylic bone cement were studied by using a simplified controlled laboratory model simulating a component cementing in total hip replacement surgery. This study also dealt with improved cementing techniques developed through these experimental studies.
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Munakata M, Hattori T, Konno S. Very mild renal endothelial damage and glomerular hyperfiltration may precede incident hypertension in the Japanese general population: The Watari study. Atherosclerosis 2016. [DOI: 10.1016/j.atherosclerosis.2016.07.733] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Abstract
We conducted a retrospective review of 11 patients with bilateral Kienböck’s disease from our series of 251 patients with Kienböck’s disease. There were no significant differences in radiographic parameters, including ulnar variance and carpal bone angle, between those with unilateral and those with bilateral Kienböck’s disease. None of the patients with bilateral disease had been treated with corticosteroids or had a systemic disease that predisposed to osteonecrosis. Thus, this study failed to demonstrate any risk factor for bilateral, as opposed to unilateral Kienböck’s disease.
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Affiliation(s)
- N Yazaki
- Department of Hand Surgery, Graduate School of Medicine, Nagoya University, Nagoya, Japan.
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Klotz S, Komatsu K, Pietrucci F, Kagi H, Ludl AA, Machida S, Hattori T, Sano-Furukawa A, Bove LE. Ice VII from aqueous salt solutions: From a glass to a crystal with broken H-bonds. Sci Rep 2016; 6:32040. [PMID: 27562476 PMCID: PMC5000010 DOI: 10.1038/srep32040] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [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: 05/14/2016] [Accepted: 07/26/2016] [Indexed: 11/16/2022] Open
Abstract
It has been known for decades that certain aqueous salt solutions of LiCl and LiBr readily form glasses when cooled to below ≈160 K. This fact has recently been exploited to produce a « salty » high-pressure ice form: When the glass is compressed at low temperatures to pressures higher than 4 GPa and subsequently warmed, it crystallizes into ice VII with the ionic species trapped inside the ice lattice. Here we report the extreme limit of salt incorporation into ice VII, using high pressure neutron diffraction and molecular dynamics simulations. We show that high-pressure crystallisation of aqueous solutions of LiCl∙RH2O and LiBr∙RH2O with R = 5.6 leads to solids with strongly expanded volume, a destruction of the hydrogen-bond network with an isotropic distribution of water-dipole moments, as well as a crystal-to-amorphous transition on decompression. This highly unusual behaviour constitutes an interesting pathway from a glass to a crystal where translational periodicity is restored but the rotational degrees of freedom remaining completely random.
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Affiliation(s)
- S Klotz
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie, CNRS UMR 7590, Université Pierre-et-Marie-Curie, F-75252 Paris, France
| | - K Komatsu
- Geochemical Research Center, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - F Pietrucci
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie, CNRS UMR 7590, Université Pierre-et-Marie-Curie, F-75252 Paris, France
| | - H Kagi
- Geochemical Research Center, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - A-A Ludl
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie, CNRS UMR 7590, Université Pierre-et-Marie-Curie, F-75252 Paris, France
| | - S Machida
- CROSS-Tokai, Research Centre for Neutron Science and Technology, 162-1 Shirakata, Tokai, Ibaraki 319-1106, Japan
| | - T Hattori
- J-PARC Center, Japan Atomic Energy Agency, Tokai, Naka, Ibaraki 319-1195, Japan
| | - A Sano-Furukawa
- J-PARC Center, Japan Atomic Energy Agency, Tokai, Naka, Ibaraki 319-1195, Japan
| | - L E Bove
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie, CNRS UMR 7590, Université Pierre-et-Marie-Curie, F-75252 Paris, France.,Institute of Condensed Matter Physics, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
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Komatsu K, Noritake F, Machida S, Sano-Furukawa A, Hattori T, Yamane R, Kagi H. Partially ordered state of ice XV. Sci Rep 2016; 6:28920. [PMID: 27375120 PMCID: PMC4931510 DOI: 10.1038/srep28920] [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: 03/20/2016] [Accepted: 06/13/2016] [Indexed: 11/24/2022] Open
Abstract
Most ice polymorphs have order–disorder “pairs” in terms of hydrogen positions, which contributes to the rich variety of ice polymorphs; in fact, three recently discovered polymorphs— ices XIII, XIV, and XV—are ordered counter forms to already identified disordered phases. Despite the considerable effort to understand order–disorder transition in ice crystals, there is an inconsistency among the various experiments and calculations for ice XV, the ordered counter form of ice VI, i.e., neutron diffraction observations suggest antiferroelectrically ordered structures, which disagree with dielectric measurement and theoretical studies, implying ferroelectrically ordered structures. Here we investigate in-situ neutron diffraction measurements and density functional theory calculations to revisit the structure and stability of ice XV. We find that none of the completely ordered configurations are particular favored; instead, partially ordered states are established as a mixture of ordered domains in disordered ice VI. This scenario in which several kinds of ordered configuration coexist dispels the contradictions in previous studies. It means that the order–disorder pairs in ice polymorphs are not one-to-one correspondent pairs but rather have one-to-n correspondence, where there are n possible configurations at finite temperature.
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Affiliation(s)
- K Komatsu
- Geochemical Research Center, Graduate School of Science, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan
| | - F Noritake
- Geochemical Research Center, Graduate School of Science, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan
| | - S Machida
- CROSS-Tokai, Research Center for Neutron Science and Technology, IQBRC Bldg, 162-1 Shirakata, Tokai, Ibaraki 319-1106, Japan
| | - A Sano-Furukawa
- J-PARC Center, Japan Atomic Energy Agency, 2-4 Shirakata-Shirane, Tokai, Ibaraki 319-1195, Japan
| | - T Hattori
- J-PARC Center, Japan Atomic Energy Agency, 2-4 Shirakata-Shirane, Tokai, Ibaraki 319-1195, Japan
| | - R Yamane
- Geochemical Research Center, Graduate School of Science, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan
| | - H Kagi
- Geochemical Research Center, Graduate School of Science, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan
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Okuyama H, Kitaguchi Y, Hattori T, Ueda Y, Ferrer NG, Hatta S, Aruga T. Adsorbed states of chlorophenol on Cu(110) and controlled switching of single-molecule junctions. J Chem Phys 2016; 144:244703. [PMID: 27369529 DOI: 10.1063/1.4954409] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
A molecular junction of substituted benzene (chlorophenol) is fabricated and controlled by using a scanning tunneling microscope (STM). Prior to the junction formation, the bonding geometry of the molecule on the surface is characterized by STM and electron energy loss spectroscopy (EELS). EELS shows that the OH group of chlorophenol is dissociated on Cu(110) and that the molecule is bonded nearly flat to the surface via an O atom, with the Cl group intact. We demonstrate controlled contact of an STM tip to the "available" Cl group and lift-up of the molecule while it is anchored to the surface via an O atom. The asymmetric bonding motifs of the molecule to the electrodes allow for reversible control of the junction.
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Affiliation(s)
- H Okuyama
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - Y Kitaguchi
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - T Hattori
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - Y Ueda
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - N G Ferrer
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - S Hatta
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - T Aruga
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
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