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Watanabe A, Tomioka Y, Okata Y, Yoshimura S, Kumode S, Iwabuchi S, Kameoka Y, Takanarita Y, Uemura K, Samejima Y, Kawasaki Y, Bitoh Y. Cholelithiasis prevalence and risk factors in individuals with severe or profound intellectual and motor disabilities. J Intellect Disabil Res 2024; 68:317-324. [PMID: 38183322 DOI: 10.1111/jir.13113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 12/05/2023] [Accepted: 12/08/2023] [Indexed: 01/08/2024]
Abstract
BACKGROUND The prevalence and risk factors of cholelithiasis in individuals with severe or profound intellectual and motor disabilities (SPIMD) are poorly characterised. Thus, we aimed to investigate the prevalence and risk determinants of cholelithiasis in a cohort with SPIMD under medical care in a residential facility. METHODS We categorised 84 patients in a residential hospital for persons with SPIMD into groups: those with (Group CL) and without (Group N) cholelithiasis. Gallstones were detected via computed tomography, ultrasonography or both. We evaluated gastrostomy status, nutritional and respiratory support, constipation, and bladder and kidney stones. Data were significantly analysed using univariate and multivariate logistic regression analyses. RESULTS The prevalence rate of cholelithiasis in our SPIMD cohort was 27%. There were no significant differences in sex, age, weight, height, or Gross Motor Function Classification System between the two groups. However, more patients received enteral nutrition (39.13% vs. 6.56%; P = 0.000751) and were on ventilator support (56.52% vs. 19.67%; P = 0.00249) in Group CL than in Group N. Enteral nutrition [odds ratio (OR) 10.4, 95% confidence interval (CI) 1.98-54.7] and ventilator support (OR 20.0, 95% CI 1.99-201.0) were identified as independent risk factors for the prevalence of cholelithiasis in patients with SPIMD. CONCLUSIONS Patients with SPIMD demonstrated an increased prevalence of cholelithiasis, with a notable association between nutritional tonic use and respiratory support. Therefore, to emphasise the need for proactive screening, it is crucial to devise diagnostic and therapeutic strategies specific to patients with SPIMD. Further investigation is essential to validate our findings and explore causative factors.
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Affiliation(s)
- A Watanabe
- Division of Pediatric Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Y Tomioka
- Division of Pediatric Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Y Okata
- Division of Pediatric Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - S Yoshimura
- Division of Pediatric Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - S Kumode
- Division of Pediatric Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - S Iwabuchi
- Division of Pediatric Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Y Kameoka
- Division of Pediatric Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Y Takanarita
- Division of Pediatric Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - K Uemura
- Division of Pediatric Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Y Samejima
- Division of Pediatric Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Y Kawasaki
- Department of Pediatrics, Nikoniko House Kobe Medical and Welfare Center, Kobe, Japan
| | - Y Bitoh
- Division of Pediatric Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
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Tomioka Y, Sugimoto S, Kawana S, Kubo Y, Shimizu D, Matsubara K, Tanaka S, Miyoshi K, Okazaki M, Toyooka S. Identification of Single-Nucleotide Polymorphisms Associated with Renal Dysfunction After Lung Transplantation Using Ethnic-Specific SNP Array. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.623] [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] Open
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3
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Komai Y, Nakajima K, Saito K, Tomioka Y, Masuda H, Ogawa A, Yonese J, Kobayashi E, Ito M. Development of novel transurethral surgery system to facilitate two-arm operation-preclinical study. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)01607-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Otani S, Tomioka Y, Matsubara K, Shimizu D, Yamamoto H, Shiotani T, Suzawa K, Miyoshi K, Yamamoto H, Okazaki M, Sugimoto S, Yamane M, Toyooka S. Pediatric Lung Transplantation−Intermediate Outcomes of a Japanese Center. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.995] [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: 11/16/2022] Open
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5
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Matsubara K, Otani S, Shimizu D, Tomioka Y, Shiotani T, Yamamoto H, Miyoshi K, Okazaki M, Sugimoto S, Yamane M, Toyooka S. Risk Assessment of Chronic Lung Allograft Dysfunction Phenotypes after Living-Donor Lobar Lung Transplantation According to the 2019 ISHLT Classification System. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.867] [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] Open
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6
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Yamamoto H, Sugimoto S, Suzuki E, Tomioka Y, Shiotani T, Shimizu D, Matsubara K, Miyoshi K, Otani S, Okazaki M, Yamane M, Toyooka S. Combination of Neutrophil to Lymphocyte Ratio and Glasgow Prognostic Score Improves Prognostic Accuracy in Lung Transplantation: Validation of 9 Preoperative Prognostic Scoring Methods. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.1007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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7
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Shiotani T, Sugimoto S, Yamamoto H, Matsubara K, Shimizu D, Nakata K, Tomioka Y, Miyoshi K, Otani S, Okazaki M, Yamane M, Toyooka S. Plasma Levels of Histidine-Rich Glycoprotein are Associated with the Development of Primary Graft Dysfunction after Lung Transplantation. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.455] [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] Open
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8
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Tomioka Y, Sugimoto S, Matsubara K, Shimizu D, Yamamoto H, Shiotani T, Miyoshi K, Ohtani S, Okazaki M, Yamane M, Toyooka S. The UNCX Polymorphism is Associated with the Development of Renal Dysfunction after Lung Transplantation. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.977] [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] Open
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9
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Jiménez E, Solé B, Arias B, Mitjans M, Varo C, Reinares M, Bonnín CM, Salagre E, Ruíz V, Torres I, Tomioka Y, Sáiz PA, García-Portilla MP, Burón P, Bobes J, Martínez-Arán A, Torrent C, Vieta E, Benabarre A. Characterizing decision-making and reward processing in bipolar disorder: A cluster analysis. Eur Neuropsychopharmacol 2018; 28:863-874. [PMID: 29807846 DOI: 10.1016/j.euroneuro.2018.04.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [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: 12/04/2017] [Revised: 03/22/2018] [Accepted: 04/30/2018] [Indexed: 11/25/2022]
Abstract
The presence of abnormalities in emotional decision-making and reward processing among bipolar patients (BP) has been well rehearsed. These disturbances are not limited to acute phases and are common even during remission. In recent years, the existence of discrete cognitive profiles in this psychiatric population has been replicated. However, emotional decision making and reward processing domains have barely been studied. Therefore, our aim was to explore the existence of different profiles on the aforementioned cognitive dimensions in BP. The sample consisted of 126 euthymic BP. Main sociodemographic, clinical, functioning, and neurocognitive variables were gathered. A hierarchical-clustering technique was used to identify discrete neurocognitive profiles based on the performance in the Iowa Gambling Task. Afterward, the resulting clusters were compared using ANOVA or Chi-squared Test, as appropriate. Evidence for the existence of three different profiles was provided. Cluster 1 was mainly characterized by poor decision ability. Cluster 2 presented the lowest sensitivity to punishment. Finally, cluster 3 presented the best decision-making ability and the highest levels of punishment sensitivity. Comparison between the three clusters indicated that cluster 2 was the most functionally impaired group. The poorest outcomes in attention, executive function domains, and social cognition were also observed within the same group. In conclusion, similarly to that observed in "cold cognitive" domains, our results suggest the existence of three discrete cognitive profiles concerning emotional decision making and reward processing. Amongst all the indexes explored, low punishment sensitivity emerge as a potential correlate of poorer cognitive and functional outcomes in bipolar disorder.
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Affiliation(s)
- E Jiménez
- Bipolar Disorder Unit, Hospital Clinic, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain
| | - B Solé
- Bipolar Disorder Unit, Hospital Clinic, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain
| | - B Arias
- Departament Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de Barcelona, CIBERSAM, Barcelona, Spain
| | - M Mitjans
- Departament Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de Barcelona, CIBERSAM, Barcelona, Spain; Clinical Neuroscience, Max Planck Institute of Experimental Medicine, Göttingen, Germany
| | - C Varo
- Bipolar Disorder Unit, Hospital Clinic, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain
| | - M Reinares
- Bipolar Disorder Unit, Hospital Clinic, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain
| | - C M Bonnín
- Bipolar Disorder Unit, Hospital Clinic, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain
| | - E Salagre
- Bipolar Disorder Unit, Hospital Clinic, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain
| | - V Ruíz
- Institut Clinic de Neurociencies, Hospital Clinic, Barcelona, Catalonia, Spain
| | - I Torres
- Bipolar Disorder Unit, Hospital Clinic, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain
| | - Y Tomioka
- Bipolar Disorder Unit, Hospital Clinic, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain
| | - P A Sáiz
- Department of Psychiatry, School of Medicine, University of Oviedo, CIBERSAM, Instituto de Neurociencias del Principado de Asturias, INEUROPA, Oviedo, Spain; Servicio de Salud del Principado de Asturias (SESPA), Oviedo, Spain
| | - M P García-Portilla
- Department of Psychiatry, School of Medicine, University of Oviedo, CIBERSAM, Instituto de Neurociencias del Principado de Asturias, INEUROPA, Oviedo, Spain; Servicio de Salud del Principado de Asturias (SESPA), Oviedo, Spain
| | - P Burón
- Department of Psychiatry, School of Medicine, University of Oviedo, CIBERSAM, Instituto de Neurociencias del Principado de Asturias, INEUROPA, Oviedo, Spain
| | - J Bobes
- Department of Psychiatry, School of Medicine, University of Oviedo, CIBERSAM, Instituto de Neurociencias del Principado de Asturias, INEUROPA, Oviedo, Spain; Servicio de Salud del Principado de Asturias (SESPA), Oviedo, Spain
| | - A Martínez-Arán
- Bipolar Disorder Unit, Hospital Clinic, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain
| | - C Torrent
- Bipolar Disorder Unit, Hospital Clinic, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain.
| | - E Vieta
- Bipolar Disorder Unit, Hospital Clinic, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain.
| | - A Benabarre
- Bipolar Disorder Unit, Hospital Clinic, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain
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Solé B, Bonnin CM, Jiménez E, Torrent C, Torres I, Varo C, Valls E, Montejo L, Gómez-Ocaña C, Tomioka Y, Vieta E, Martinez-Aran A, Reinares M. Heterogeneity of functional outcomes in patients with bipolar disorder: a cluster-analytic approach. Acta Psychiatr Scand 2018; 137:516-527. [PMID: 29508379 DOI: 10.1111/acps.12871] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [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] [Accepted: 02/09/2018] [Indexed: 01/21/2023]
Abstract
OBJECTIVE The aim was to examine the heterogeneity of psychosocial outcomes in euthymic bipolar disorder (BD) patients and analyse the potential influence of distinct variables on functioning. METHOD Using a hierarchical cluster exploratory analysis, 143 euthymic patients with diagnosis of BD were grouped according to their functional performance based on domains scores of the Functioning Assessment Short Test (FAST). The resulting groups were compared on sociodemographic, clinical and neurocognitive variables to find factors associated with each functional cluster. RESULTS Patients were grouped in three functional profiles: patients with good functioning in all the FAST areas, patients with an intermediate profile showing great difficulties in the occupational domain and milder difficulties in most of the rest domains, and a third group with serious difficulties in almost all functional areas. Both functionally impaired groups were characterized by higher subthreshold symptoms (depressive and manic) and higher unemployment rates. The most functionally impaired group also showed lower scores on some measures of processing speed. CONCLUSION Two of three functional profiles showed some kind of impairment which was associated with subsyndromal symptoms and cognitive performance. These patterns should be taken into consideration to develop more individualized interventions to restore, or improve, psychosocial outcomes.
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Affiliation(s)
- B Solé
- Barcelona Bipolar Disorders Program, Institute of Neurosciences, Hospital Clinic, IDIBAPS, CIBERSAM, University of Barcelona, Barcelona, Spain
| | - C M Bonnin
- Barcelona Bipolar Disorders Program, Institute of Neurosciences, Hospital Clinic, IDIBAPS, CIBERSAM, University of Barcelona, Barcelona, Spain
| | - E Jiménez
- Barcelona Bipolar Disorders Program, Institute of Neurosciences, Hospital Clinic, IDIBAPS, CIBERSAM, University of Barcelona, Barcelona, Spain
| | - C Torrent
- Barcelona Bipolar Disorders Program, Institute of Neurosciences, Hospital Clinic, IDIBAPS, CIBERSAM, University of Barcelona, Barcelona, Spain
| | - I Torres
- Barcelona Bipolar Disorders Program, Institute of Neurosciences, Hospital Clinic, IDIBAPS, CIBERSAM, University of Barcelona, Barcelona, Spain
| | - C Varo
- Barcelona Bipolar Disorders Program, Institute of Neurosciences, Hospital Clinic, IDIBAPS, CIBERSAM, University of Barcelona, Barcelona, Spain
| | - E Valls
- Barcelona Bipolar Disorders Program, Institute of Neurosciences, Hospital Clinic, IDIBAPS, CIBERSAM, University of Barcelona, Barcelona, Spain
| | - L Montejo
- Barcelona Bipolar Disorders Program, Institute of Neurosciences, Hospital Clinic, IDIBAPS, CIBERSAM, University of Barcelona, Barcelona, Spain
| | - C Gómez-Ocaña
- Institute of Neuroscience, Hospital Clinic of Barcelona, Barcelona, Spain
| | - Y Tomioka
- Barcelona Bipolar Disorders Program, Institute of Neurosciences, Hospital Clinic, IDIBAPS, CIBERSAM, University of Barcelona, Barcelona, Spain
| | - E Vieta
- Barcelona Bipolar Disorders Program, Institute of Neurosciences, Hospital Clinic, IDIBAPS, CIBERSAM, University of Barcelona, Barcelona, Spain
| | - A Martinez-Aran
- Barcelona Bipolar Disorders Program, Institute of Neurosciences, Hospital Clinic, IDIBAPS, CIBERSAM, University of Barcelona, Barcelona, Spain
| | - M Reinares
- Barcelona Bipolar Disorders Program, Institute of Neurosciences, Hospital Clinic, IDIBAPS, CIBERSAM, University of Barcelona, Barcelona, Spain
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11
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Salagre E, Solé B, Tomioka Y, Fernandes BS, Hidalgo-Mazzei D, Garriga M, Jimenez E, Sanchez-Moreno J, Vieta E, Grande I. Treatment of neurocognitive symptoms in unipolar depression: A systematic review and future perspectives. J Affect Disord 2017. [PMID: 28651185 DOI: 10.1016/j.jad.2017.06.034] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Cognitive symptoms in Major Depressive Disorder (MDD) are persistent and commonly entail neurocognitive impairment and a decline in quality of life. This systematic review gathers the current scientific evidence on therapeutic strategies for neuropsychological impairment in MDD. METHOD A systematic search on PubMed, PsycINFO and Clinicaltrials.gov was carried out on December 2016 according to PRISMA using Boolean terms to identify interventions for the treatment of cognitive dysfunction in MDD. Only English-written articles providing original data and focusing in adults with MDD were included with no time restrictions. RESULTS A total of 95 studies reporting data on 40 pharmacological and non-pharmacological interventions were included. Interventions were grouped into the following categories: 1) Pharmacological Therapies (antidepressants, stimulants, compounds acting on NMDA receptors, compounds acting on the cholinergic system, compounds showing anti-inflammatory or antioxidant properties, other mechanisms of action), 2) Physical Therapies and 3) Psychological Therapies, 4) Exercise. There are some promising compounds showing a positive impact on cognitive symptoms including vortioxetine, lisdexamfetamine or erythropoietin. LIMITATIONS The studies included showed significant methodological differences in heterogeneous samples. The lack of a standardized neuropsychological battery makes comparisons between studies difficult. CONCLUSION Current evidence is not sufficient to widely recommend the use of procognitive treatments in MDD although promising results are coming to light.
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Affiliation(s)
- E Salagre
- Bipolar Disorders Unit, Hospital Clinic, Institute of Neurosciences, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain
| | - B Solé
- Bipolar Disorders Unit, Hospital Clinic, Institute of Neurosciences, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain
| | - Y Tomioka
- Bipolar Disorders Unit, Hospital Clinic, Institute of Neurosciences, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain
| | - B S Fernandes
- Deakin University, IMPACT Strategic Research Centre, School of Medicine, Barwon Health, Geelong, Australia; Laboratory of Calcium Binding Proteins in the Central Nervous System, Department of Biochemistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - D Hidalgo-Mazzei
- Bipolar Disorders Unit, Hospital Clinic, Institute of Neurosciences, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain
| | - M Garriga
- Bipolar Disorders Unit, Hospital Clinic, Institute of Neurosciences, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain
| | - E Jimenez
- Bipolar Disorders Unit, Hospital Clinic, Institute of Neurosciences, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain
| | - J Sanchez-Moreno
- Bipolar Disorders Unit, Hospital Clinic, Institute of Neurosciences, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain
| | - E Vieta
- Bipolar Disorders Unit, Hospital Clinic, Institute of Neurosciences, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain.
| | - I Grande
- Bipolar Disorders Unit, Hospital Clinic, Institute of Neurosciences, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain
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Kawahata I, Lai Y, Morita J, Kato S, Ohtaku S, Tomioka Y, Tabuchi A, Tsuda M, Sumi-Ichinose C, Kondo K, Izumi Y, Kume T, Akaike A, Ohashi K, Mizuno K, Hasegawa K, Ichinose H, Kobayashi K, Yamakuni T. V-1/CP complex formation is required for genetic co-regulation of adult nigrostriatal dopaminergic function via the RHO/MAL/SRF pathway in vitro and in vivo. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1021] [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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Hasegawa K, Tagawa M, Takagi K, Tsukamoto H, Tomioka Y, Suzuki T, Nishioka Y, Ohrui T, Numasaki M. Anti-tumor immunity elicited by direct intratumoral administration of a recombinant adenovirus expressing either IL-28A/IFN-λ2 or IL-29/IFN-λ1. Cancer Gene Ther 2016; 23:266-77. [PMID: 27561689 DOI: 10.1038/cgt.2016.29] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2015] [Revised: 05/11/2016] [Accepted: 05/12/2016] [Indexed: 12/14/2022]
Abstract
Interleukin (IL)-28A/interferon (IFN)-λ2 and IL-29/IFN-λ1 have been demonstrated to elicit direct and indirect anti-tumor actions. In this study, we constructed an adenovirus vector expressing either IL-28A/IFN-λ2 (AdIL-28A) or IL-29/IFN-λ1 (AdIL-29) to evaluate the therapeutic properties of intratumoral injection of recombinant adenovirus to apply for the clinical implementation of cancer gene therapy. Despite the lack of an anti-proliferative effect on MCA205 and B16-F10 cells, a retarded growth of established subcutaneous tumors was observed following multiple injections of either AdIL-28A or AdIL-29 when compared with AdNull. In vivo cell depletion experiments displayed that both NK cells and CD8(+) T cells have a major role in AdIL-28A-mediated tumor growth suppression. A significant increase in the number of infiltrating CD8(+) T cells into the tumors treated with either AdIL-28A or AdIL-29 was observed. Moreover, specific anti-tumor cytotoxic T lymphocyte reactivity was detected in spleen cells from animals treated with either AdIL-28A or AdIL-29. In IFN-γ-deficient mice, anti-tumor activities of AdIL-28A were completely impaired, indicating that IFN-γ is critically involved in the tumor growth inhibition triggered by AdIL-28A. IL-12 provided a synergistic anti-tumor effect when combined with AdIL-28A. These results indicate that AdIL-28A and AdIL-29 could be successfully utilized as an alternative cancer immunogene therapy.
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Affiliation(s)
- K Hasegawa
- Laboratory of Clinical Science and Biomedicine, Faculty of Pharmaceutical Sciences, Josai University, Sakado, Japan
| | - M Tagawa
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, Chiba, Japan
| | - K Takagi
- Departments of Pathology and Histotechnology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - H Tsukamoto
- Laboratory of Oncology, Pharmacy Practice and Sciences, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan
| | - Y Tomioka
- Laboratory of Oncology, Pharmacy Practice and Sciences, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan
| | - T Suzuki
- Departments of Pathology and Histotechnology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Y Nishioka
- Department of Respiratory Medicine and Rheumatology, Institute of Health Biosciences, University of Tokushima Graduate School, Tokushima, Japan
| | - T Ohrui
- Division of Geriatric Pharmacotherapy, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - M Numasaki
- Laboratory of Clinical Science and Biomedicine, Faculty of Pharmaceutical Sciences, Josai University, Sakado, Japan
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Abstract
Intraneural perineurioma is an extremely rare condition characterized by perineurial cell proliferation within peripheral nerve (PN) sheaths. In the veterinary field, this entity has been reported only in a dog. We examined multiple enlargements of PNs in 11 chickens ( Gallus gallus domesticus) (9 Japanese bantams and 2 specific pathogen-free White Leghorn), which were inoculated with an avian leukosis virus (ALV) causing so-called fowl glioma. All chickens clinically exhibited progressive leg paralysis. Lumbosacral plexus, brachial plexus, and/or spinal ganglion were commonly affected, and these nerves contained a diffuse proliferation of spindle cells arranged concentrically in characteristic onion bulb-like structures surrounded by residual axons and myelin sheaths. The spindle cells were immunohistochemically negative for S-100α/β protein. Electron microscopy revealed that these cells were characterized by short bipolar cytoplasmic processes, occasional cytoplasmic pinocytotic vesicles, and discontinuous basal laminae. These features are consistent with those of intraneural perineurioma. Furthermore, the specific sequence of the ALV was detected in the PN lesions of 8/11 (73%) birds by polymerase chain reaction. These results indicate that the multiple intraneural perineuriomas of chicken may be associated with the ALV-A causing fowl glioma.
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Affiliation(s)
- T Toyoda
- Laboratory of Comparative Pathology, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
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Yada H, Ijiri Y, Uemura H, Tomioka Y, Okamoto H. Enhancement of Photoinduced Charge-Order Melting via Anisotropy Control by Double-Pulse Excitation in Perovskite Manganites: Pr_{0.6}Ca_{0.4}MnO_{3}. Phys Rev Lett 2016; 116:076402. [PMID: 26943548 DOI: 10.1103/physrevlett.116.076402] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Indexed: 06/05/2023]
Abstract
To control the efficiency of photoinduced charge-order melting in perovskite manganites, we performed femtosecond pump-probe spectroscopy using double-pulse excitation on Pr_{0.6}Ca_{0.4}MnO_{3}. The results revealed that the transfer of the spectral weight from the near-infrared to infrared region by the second pump pulse is considerably enhanced by the first pump pulse and that the suppression of crystal anisotropy, that is, the decrease of long-range lattice deformations due to the charge order by the first pump pulse is a key factor to enhance the charge-order melting. This double-pulse excitation method can be applied to various photoinduced transitions in complex materials with electronic and structural instabilities.
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Affiliation(s)
- H Yada
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - Y Ijiri
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - H Uemura
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - Y Tomioka
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8561, Japan
| | - H Okamoto
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan
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Yoshida T, Ideta S, Shimojima T, Malaeb W, Shinada K, Suzuki H, Nishi I, Fujimori A, Ishizaka K, Shin S, Nakashima Y, Anzai H, Arita M, Ino A, Namatame H, Taniguchi M, Kumigashira H, Ono K, Kasahara S, Shibauchi T, Terashima T, Matsuda Y, Nakajima M, Uchida S, Tomioka Y, Ito T, Kihou K, Lee CH, Iyo A, Eisaki H, Ikeda H, Arita R, Saito T, Onari S, Kontani H. Anisotropy of the superconducting gap in the iron-based superconductor BaFe2(As(1-x)P(x))2. Sci Rep 2014; 4:7292. [PMID: 25465027 PMCID: PMC4252890 DOI: 10.1038/srep07292] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Accepted: 11/14/2014] [Indexed: 11/22/2022] Open
Abstract
We report peculiar momentum-dependent anisotropy in the superconducting gap observed by angle-resolved photoemission spectroscopy in BaFe2(As1-xPx)2 (x = 0.30, Tc = 30 K). Strongly anisotropic gap has been found only in the electron Fermi surface while the gap on the entire hole Fermi surfaces are nearly isotropic. These results are inconsistent with horizontal nodes but are consistent with modified s± gap with nodal loops. We have shown that the complicated gap modulation can be theoretically reproduced by considering both spin and orbital fluctuations.
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Affiliation(s)
- T Yoshida
- 1] Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan [2] JST, Transformative Research-Project on Iron Pnictides (TRIP), Chiyoda, Tokyo 102-0075, Japan
| | - S Ideta
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - T Shimojima
- Department of Applied Physics, University of Tokyo, Tokyo 113-8656, Japan
| | - W Malaeb
- Institute of Solid State Physics, University of Tokyo, Kashiwa 277-8581, Japan
| | - K Shinada
- Department of Applied Physics, University of Tokyo, Tokyo 113-8656, Japan
| | - H Suzuki
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - I Nishi
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - A Fujimori
- 1] Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan [2] JST, Transformative Research-Project on Iron Pnictides (TRIP), Chiyoda, Tokyo 102-0075, Japan
| | - K Ishizaka
- Department of Applied Physics, University of Tokyo, Tokyo 113-8656, Japan
| | - S Shin
- Institute of Solid State Physics, University of Tokyo, Kashiwa 277-8581, Japan
| | - Y Nakashima
- Graduate School of Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - H Anzai
- Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima 739-0046, Japan
| | - M Arita
- Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima 739-0046, Japan
| | - A Ino
- Graduate School of Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - H Namatame
- Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima 739-0046, Japan
| | - M Taniguchi
- 1] Graduate School of Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan [2] Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima 739-0046, Japan
| | - H Kumigashira
- KEK, Photon Factory, Tsukuba, Ibaraki 305-0801, Japan
| | - K Ono
- KEK, Photon Factory, Tsukuba, Ibaraki 305-0801, Japan
| | - S Kasahara
- 1] Research Center for Low Temperature and Materials Sciences, Kyoto University, Kyoto 606-8502, Japan [2] Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - T Shibauchi
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - T Terashima
- Research Center for Low Temperature and Materials Sciences, Kyoto University, Kyoto 606-8502, Japan
| | - Y Matsuda
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - M Nakajima
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - S Uchida
- 1] Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan [2] JST, Transformative Research-Project on Iron Pnictides (TRIP), Chiyoda, Tokyo 102-0075, Japan
| | - Y Tomioka
- 1] JST, Transformative Research-Project on Iron Pnictides (TRIP), Chiyoda, Tokyo 102-0075, Japan [2] National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 305-8568, Japan
| | - T Ito
- 1] JST, Transformative Research-Project on Iron Pnictides (TRIP), Chiyoda, Tokyo 102-0075, Japan [2] National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 305-8568, Japan
| | - K Kihou
- 1] JST, Transformative Research-Project on Iron Pnictides (TRIP), Chiyoda, Tokyo 102-0075, Japan [2] National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 305-8568, Japan
| | - C H Lee
- 1] JST, Transformative Research-Project on Iron Pnictides (TRIP), Chiyoda, Tokyo 102-0075, Japan [2] National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 305-8568, Japan
| | - A Iyo
- 1] JST, Transformative Research-Project on Iron Pnictides (TRIP), Chiyoda, Tokyo 102-0075, Japan [2] National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 305-8568, Japan
| | - H Eisaki
- 1] JST, Transformative Research-Project on Iron Pnictides (TRIP), Chiyoda, Tokyo 102-0075, Japan [2] National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 305-8568, Japan
| | - H Ikeda
- 1] JST, Transformative Research-Project on Iron Pnictides (TRIP), Chiyoda, Tokyo 102-0075, Japan [2] Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - R Arita
- 1] JST, Transformative Research-Project on Iron Pnictides (TRIP), Chiyoda, Tokyo 102-0075, Japan [2] Department of Applied Physics, University of Tokyo, Tokyo 113-8656, Japan
| | - T Saito
- 1] JST, Transformative Research-Project on Iron Pnictides (TRIP), Chiyoda, Tokyo 102-0075, Japan [2] Department of Physics, Nagoya University, Furo-cho, Nagoya 464-8602, Japan
| | - S Onari
- 1] JST, Transformative Research-Project on Iron Pnictides (TRIP), Chiyoda, Tokyo 102-0075, Japan [2] Department of Applied Physics, Nagoya University, Furo-cho, Nagoya 464-8602, Japan
| | - H Kontani
- 1] JST, Transformative Research-Project on Iron Pnictides (TRIP), Chiyoda, Tokyo 102-0075, Japan [2] Department of Physics, Nagoya University, Furo-cho, Nagoya 464-8602, Japan
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17
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Nakajima M, Ishida S, Tanaka T, Kihou K, Tomioka Y, Saito T, Lee CH, Fukazawa H, Kohori Y, Kakeshita T, Iyo A, Ito T, Eisaki H, Uchida S. Normal-state charge dynamics in doped BaFe₂As₂: roles of doping and necessary ingredients for superconductivity. Sci Rep 2014; 4:5873. [PMID: 25077444 PMCID: PMC5376192 DOI: 10.1038/srep05873] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Accepted: 07/11/2014] [Indexed: 11/30/2022] Open
Abstract
In high-transition-temperature superconducting cuprates and iron arsenides, chemical doping plays an important role in inducing superconductivity. Whereas in the cuprate case, the dominant role of doping is to inject charge carriers, the role for the iron arsenides is complex owing to carrier multiplicity and the diversity of doping. Here, we present a comparative study of the in-plane resistivity and the optical spectrum of doped BaFe2As2, which allows for separation of coherent (itinerant) and incoherent (highly dissipative) charge dynamics. The coherence of the system is controlled by doping, and the doping evolution of the charge dynamics exhibits a distinct difference between electron and hole doping. It is found in common with any type of doping that superconductivity with high transition temperature emerges when the normal-state charge dynamics maintains incoherence and when the resistivity associated with the coherent channel exhibits dominant temperature-linear dependence.
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Affiliation(s)
- M Nakajima
- 1] Department of Physics, University of Tokyo, Tokyo 113-0033, Japan [2] National Institute of Advanced Industrial Science and Technology, Tsukuba 305-8568, Japan [3] JST, Transformative Research-Project on Iron Pnictides (TRIP), Tokyo 102-0075, Japan [4]
| | - S Ishida
- 1] Department of Physics, University of Tokyo, Tokyo 113-0033, Japan [2] National Institute of Advanced Industrial Science and Technology, Tsukuba 305-8568, Japan [3] JST, Transformative Research-Project on Iron Pnictides (TRIP), Tokyo 102-0075, Japan
| | - T Tanaka
- 1] Department of Physics, University of Tokyo, Tokyo 113-0033, Japan [2] JST, Transformative Research-Project on Iron Pnictides (TRIP), Tokyo 102-0075, Japan
| | - K Kihou
- 1] National Institute of Advanced Industrial Science and Technology, Tsukuba 305-8568, Japan [2] JST, Transformative Research-Project on Iron Pnictides (TRIP), Tokyo 102-0075, Japan
| | - Y Tomioka
- 1] National Institute of Advanced Industrial Science and Technology, Tsukuba 305-8568, Japan [2] JST, Transformative Research-Project on Iron Pnictides (TRIP), Tokyo 102-0075, Japan
| | - T Saito
- Department of Physics, Chiba University, Chiba 263-8522, Japan
| | - C H Lee
- 1] National Institute of Advanced Industrial Science and Technology, Tsukuba 305-8568, Japan [2] JST, Transformative Research-Project on Iron Pnictides (TRIP), Tokyo 102-0075, Japan
| | - H Fukazawa
- 1] JST, Transformative Research-Project on Iron Pnictides (TRIP), Tokyo 102-0075, Japan [2] Department of Physics, Chiba University, Chiba 263-8522, Japan
| | - Y Kohori
- 1] JST, Transformative Research-Project on Iron Pnictides (TRIP), Tokyo 102-0075, Japan [2] Department of Physics, Chiba University, Chiba 263-8522, Japan
| | - T Kakeshita
- 1] Department of Physics, University of Tokyo, Tokyo 113-0033, Japan [2] JST, Transformative Research-Project on Iron Pnictides (TRIP), Tokyo 102-0075, Japan
| | - A Iyo
- 1] National Institute of Advanced Industrial Science and Technology, Tsukuba 305-8568, Japan [2] JST, Transformative Research-Project on Iron Pnictides (TRIP), Tokyo 102-0075, Japan
| | - T Ito
- 1] National Institute of Advanced Industrial Science and Technology, Tsukuba 305-8568, Japan [2] JST, Transformative Research-Project on Iron Pnictides (TRIP), Tokyo 102-0075, Japan
| | - H Eisaki
- 1] National Institute of Advanced Industrial Science and Technology, Tsukuba 305-8568, Japan [2] JST, Transformative Research-Project on Iron Pnictides (TRIP), Tokyo 102-0075, Japan
| | - S Uchida
- 1] Department of Physics, University of Tokyo, Tokyo 113-0033, Japan [2] JST, Transformative Research-Project on Iron Pnictides (TRIP), Tokyo 102-0075, Japan
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18
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Zhou SY, Langner MC, Zhu Y, Chuang YD, Rini M, Glover TE, Hertlein MP, Gonzalez AGC, Tahir N, Tomioka Y, Tokura Y, Hussain Z, Schoenlein RW. Glass-like recovery of antiferromagnetic spin ordering in a photo-excited manganite Pr₀.₇Ca₀.₃MnO₃. Sci Rep 2014; 4:4050. [PMID: 24522173 PMCID: PMC3923209 DOI: 10.1038/srep04050] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [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: 11/29/2013] [Accepted: 01/16/2014] [Indexed: 11/09/2022] Open
Abstract
Electronic orderings of charges, orbitals and spins are observed in many strongly correlated electron materials, and revealing their dynamics is a critical step toward undertsanding the underlying physics of important emergent phenomena. Here we use time-resolved resonant soft x-ray scattering spectroscopy to probe the dynamics of antiferromagnetic spin ordering in the manganite Pr₀.₇Ca₀.₃MnO₃ following ultrafast photo-exitation. Our studies reveal a glass-like recovery of the spin ordering and a crossover in the dimensionality of the restoring interaction from quasi-1D at low pump fluence to 3D at high pump fluence. This behavior arises from the metastable state created by photo-excitation, a state characterized by spin disordered metallic droplets within the larger charge- and spin-ordered insulating domains. Comparison with time-resolved resistivity measurements suggests that the collapse of spin ordering is correlated with the insulator-to-metal transition, but the recovery of the insulating phase does not depend on the re-establishment of the spin ordering.
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Affiliation(s)
- S Y Zhou
- 1] Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA [2] State Key Laboratory of Low Dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing 100084, China [3] Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - M C Langner
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Y Zhu
- 1] Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA [2] Department of Applied Science, University of California, Davis, CA 95616, USA
| | - Y-D Chuang
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - M Rini
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - T E Glover
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - M P Hertlein
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - A G Cruz Gonzalez
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - N Tahir
- 1] Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA [2] National Center for Physics, Islamabad, Pakistan
| | - Y Tomioka
- Nanoelectronics Research Institute, National Institute of Advanced Industrial Science and Technology (AIST) Tsukuba Central 4, 1-1-1 Higashi Tsukuba 305-8562, Japan
| | - Y Tokura
- 1] Department of Applied Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan [2] Cross-Correlated Materials Research Group (CMRG) and Correlated Electron Research Group (CERG), Advanced Science Institute, RIKEN, Wako 351-0198, Japan
| | - Z Hussain
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - R W Schoenlein
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
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19
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Hatano T, Ogimoto Y, Ogawa N, Nakano M, Ono S, Tomioka Y, Miyano K, Iwasa Y, Tokura Y. Gate control of electronic phases in a quarter-filled manganite. Sci Rep 2013; 3:2904. [PMID: 24104858 PMCID: PMC3793216 DOI: 10.1038/srep02904] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [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: 05/17/2013] [Accepted: 09/20/2013] [Indexed: 11/09/2022] Open
Abstract
Electron correlation often produces a variety of electrically insulating states caused by self-organization of electrons, which are particularly stable at commensurate fillings. Although collapsing such ordered states by minute external stimuli has been a key strategy toward device applications, it is difficult to access their true electronic phase boundaries due to the necessity of fine-tuning of material parameters. Here, we demonstrate the ambipolar resistance switching in Pr(1-x)Sr(x)MnO3 thin films (x = 0.5; an effectively 1/4-filled state) by quasi-continuous control of the doping level x and band-width W using gate-voltage and magnetic field, enabled by the extreme electric-field formed at the nanoscale interface generated in an electrolyte-gated transistor. An electroresistance peak with unprecedented steepness emerges on approaching a critical point in the x-W phase diagram. The technique opens a new route to Mott-insulator based transistors and to discovering singularities hitherto unnoticed in conventional bulk studies of strongly correlated electron systems.
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Affiliation(s)
- T Hatano
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
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20
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Ishida S, Nakajima M, Liang T, Kihou K, Lee CH, Iyo A, Eisaki H, Kakeshita T, Tomioka Y, Ito T, Uchida S. Anisotropy of the in-plane resistivity of underdoped Ba(Fe(1-x)Co(x))2As2 superconductors induced by impurity scattering in the antiferromagnetic orthorhombic phase. Phys Rev Lett 2013; 110:207001. [PMID: 25167441 DOI: 10.1103/physrevlett.110.207001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2012] [Indexed: 06/03/2023]
Abstract
We investigated the in-plane resistivity anisotropy for underdoped Ba(Fe(1-x)Co(x))(2)As(2) single crystals with improved quality. We demonstrate that the anisotropy in resistivity in the magnetostructural ordered phase arises from the anisotropy in the residual component which increases in proportion to the Co concentration x. This gives evidence that the anisotropy originates from the impurity scattering by Co atoms substituted for the Fe sites, rather than the so far proposed mechanisms such as the anisotropy of Fermi velocities of reconstructed Fermi surface pockets. As doping proceeds to the paramagnetic-tetragonal phase, a Co impurity transforms to a weak and isotropic scattering center.
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Affiliation(s)
- S Ishida
- Department of Physics, University of Tokyo, Tokyo 113-0033, Japan and National Institute of Advanced Industrial Science and Technology, Tsukuba 305-8568, Japan and JST, Transformative Research-Project on Iron Pnictides, Tokyo 102-0075, Japan
| | - M Nakajima
- Department of Physics, University of Tokyo, Tokyo 113-0033, Japan and National Institute of Advanced Industrial Science and Technology, Tsukuba 305-8568, Japan and JST, Transformative Research-Project on Iron Pnictides, Tokyo 102-0075, Japan
| | - T Liang
- Department of Physics, University of Tokyo, Tokyo 113-0033, Japan and National Institute of Advanced Industrial Science and Technology, Tsukuba 305-8568, Japan and JST, Transformative Research-Project on Iron Pnictides, Tokyo 102-0075, Japan
| | - K Kihou
- National Institute of Advanced Industrial Science and Technology, Tsukuba 305-8568, Japan and JST, Transformative Research-Project on Iron Pnictides, Tokyo 102-0075, Japan
| | - C H Lee
- National Institute of Advanced Industrial Science and Technology, Tsukuba 305-8568, Japan and JST, Transformative Research-Project on Iron Pnictides, Tokyo 102-0075, Japan
| | - A Iyo
- National Institute of Advanced Industrial Science and Technology, Tsukuba 305-8568, Japan and JST, Transformative Research-Project on Iron Pnictides, Tokyo 102-0075, Japan
| | - H Eisaki
- National Institute of Advanced Industrial Science and Technology, Tsukuba 305-8568, Japan and JST, Transformative Research-Project on Iron Pnictides, Tokyo 102-0075, Japan
| | - T Kakeshita
- Department of Physics, University of Tokyo, Tokyo 113-0033, Japan and JST, Transformative Research-Project on Iron Pnictides, Tokyo 102-0075, Japan
| | - Y Tomioka
- National Institute of Advanced Industrial Science and Technology, Tsukuba 305-8568, Japan and JST, Transformative Research-Project on Iron Pnictides, Tokyo 102-0075, Japan
| | - T Ito
- National Institute of Advanced Industrial Science and Technology, Tsukuba 305-8568, Japan and JST, Transformative Research-Project on Iron Pnictides, Tokyo 102-0075, Japan
| | - S Uchida
- Department of Physics, University of Tokyo, Tokyo 113-0033, Japan and JST, Transformative Research-Project on Iron Pnictides, Tokyo 102-0075, Japan
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Abe T, Kanemitu Y, Nakasone M, Kawahata I, Yamakuni T, Nakajima A, Suzuki N, Nishikawa M, Hishinuma T, Tomioka Y. SLC10A4 is a protease-activated transporter that transports bile acids. J Biochem 2013; 154:93-101. [DOI: 10.1093/jb/mvt031] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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22
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Ideta S, Yoshida T, Nishi I, Fujimori A, Kotani Y, Ono K, Nakashima Y, Yamaichi S, Sasagawa T, Nakajima M, Kihou K, Tomioka Y, Lee CH, Iyo A, Eisaki H, Ito T, Uchida S, Arita R. Dependence of carrier doping on the impurity potential in transition-metal-substituted FeAs-based superconductors. Phys Rev Lett 2013; 110:107007. [PMID: 23521287 DOI: 10.1103/physrevlett.110.107007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2012] [Revised: 01/14/2013] [Indexed: 06/01/2023]
Abstract
In order to examine to what extent the rigid-band-like electron doping scenario is applicable to the transition metal-substituted Fe-based superconductors, we have performed angle-resolved photoemission spectroscopy studies of Ba(Fe(1-x)Ni(x))(2)As(2) (Ni-122) and Ba(Fe(1-x)Cu(x))(2)As(2) (Cu-122), and compared the results with Ba(Fe(1-x)Co(x))(2)As(2) (Co-122). We find that Ni 3d-derived features are formed below the Fe 3d band and that Cu 3d-derived ones further below it. The electron and hole Fermi surface (FS) volumes are found to increase and decrease with substitution, respectively, qualitatively consistent with the rigid-band model. However, the total extra electron number estimated from the FS volumes (the total electron FS volume minus the total hole FS volume) is found to decrease in going from Co-, Ni-, to Cu-122 for a fixed nominal extra electron number, that is, the number of electrons that participate in the formation of FS decreases with increasing impurity potential. We find that the Néel temperature T(N) and the critical temperature T(c) maximum are determined by the FS volumes rather than the nominal extra electron concentration or the substituted atom concentration.
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Affiliation(s)
- S Ideta
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
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23
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Nakajima M, Ishida S, Tomioka Y, Kihou K, Lee CH, Iyo A, Ito T, Kakeshita T, Eisaki H, Uchida S. Effect of Co doping on the in-plane anisotropy in the optical spectrum of underdoped Ba(Fe(1-x)Co(x))2As2. Phys Rev Lett 2012; 109:217003. [PMID: 23215609 DOI: 10.1103/physrevlett.109.217003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2012] [Indexed: 06/01/2023]
Abstract
We investigate the anisotropy in the in-plane optical spectra of detwinned Ba(Fe(1-x)Co(x))(2)As(2). The optical conductivity spectrum of BaFe(2)As(2) shows appreciable anisotropy in the magnetostructural ordered phase, whereas the dc (ω = 0) resistivity is nearly isotropic at low temperatures. Upon Co doping, the resistivity becomes highly anisotropic, while the finite-energy intrinsic anisotropy is suppressed. It is found that anisotropy in resistivity arises from anisotropic impurity scattering due to the presence of doped Co atoms, and it is extrinsic in origin. The intensity of a specific optical phonon mode is also found to show striking anisotropy in the ordered phase. The anisotropy induced by the Co impurity and that observed in the optical phonon mode are hallmarks of the highly polarizable electronic state in the ordered phase.
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Affiliation(s)
- M Nakajima
- Department of Physics, University of Tokyo, Tokyo 113-0033, Japan.
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24
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Kataoka A, Nishida T, Hirai N, Tomioka Y, Sugiyama T, Yakushiji M. Induction of apoptosis in ovarian carcinoma cell line by glucocorticoids, and sex steroid hormones. Oncol Rep 2012; 4:1249-53. [PMID: 21590231 DOI: 10.3892/or.4.6.1249] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
We investigated the interactions in the KOC-2s human ovarian cancer cells on the effect of glucocorticoids, and sex steroid hormones in ovarian carcinomas. At 10(-8) M to 10(-5) M, dexamethasone (Dex) decreased the number of cells by 75-80% (p<0.001). At 10(-8) M and 10(-7) M, hydrocortisone (HC) decreased the number by 50% (p<0.01); at 10(-6) M and 10(-5) M, the decrease in number of cells was 65%. The E-2 decrease in number was not statistically significant. Progesterone (PG) showed at 10(-8) to 10(-6) M an increase in number of cells, however, at 10(-5) M it was decreased by 70% with a significant difference (p<0.001). Dex (10(-8)-10(-5) M), HC (10(-8)-10(-5) M) and PG (10(-5) M) produced internucleosomal cleavage of DNA into fragments with multiples of 180 to 200 bp. The TNF-alpha with addition of Dex (10(-8)-10(-5) M) and HC (10(-8)-10(-5) M) was increased after 24 h, 48 h (p<0.001); however, gradually decrease after 72 h. When PG (10(-8)-10(-5) M) was added, PG (10(-5) M) increased the secretion of TNF-alpha after 72 h. Our findings demonstrate that glucocorticoids, and PG directly induce apoptotic DNA fragmentation of KOC-2s cells. However, the secretion of TNF-alpha and expression of Fas antigen were totally different in these substances. These data provide a basis for future studies on the mechanisms of apoptotic effect of glucocorticoids, and PG and the therapeutic effects of these substances.
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25
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Matsuda M, Fishman RS, Hong T, Lee CH, Ushiyama T, Yanagisawa Y, Tomioka Y, Ito T. magnetic dispersion and anisotropy in multiferroic BiFeO3. Phys Rev Lett 2012; 109:067205. [PMID: 23006302 DOI: 10.1103/physrevlett.109.067205] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Indexed: 06/01/2023]
Abstract
We have determined the full magnetic dispersion relations of multiferroic BiFeO3. In particular, two excitation gaps originating from magnetic anisotropies have been clearly observed. The direct observation of the gaps enables us to accurately determine the Dzyaloshinskii-Moriya (DM) interaction and the single ion anisotropy. The DM interaction supports a sizable magnetoelectric coupling in this compound.
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Affiliation(s)
- M Matsuda
- Quantum Condensed Matter Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
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26
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Madarame H, Ochi E, Tomioka Y, Nakazato K, Ishii N. Blood flow-restricted training does not improve jump performance in untrained young men. ACTA ACUST UNITED AC 2011; 98:465-71. [DOI: 10.1556/aphysiol.98.2011.4.10] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Ochiai K, Yoshikawa Y, Oonuma T, Tomioka Y, Hashizume K, Morimatsu M. Interactions between canine RAD51 and full length or truncated BRCA2 BRC repeats. Vet J 2011; 190:293-295. [DOI: 10.1016/j.tvjl.2010.11.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2010] [Revised: 10/28/2010] [Accepted: 11/01/2010] [Indexed: 11/24/2022]
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28
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Zhou SY, Zhu Y, Langner MC, Chuang YD, Yu P, Yang WL, Cruz Gonzalez AG, Tahir N, Rini M, Chu YH, Ramesh R, Lee DH, Tomioka Y, Tokura Y, Hussain Z, Schoenlein RW. Ferromagnetic enhancement of CE-type spin ordering in (Pr,Ca)MnO3. Phys Rev Lett 2011; 106:186404. [PMID: 21635110 DOI: 10.1103/physrevlett.106.186404] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2010] [Indexed: 05/30/2023]
Abstract
We present resonant soft x-ray scattering results from small bandwidth manganites (Pr,Ca)MnO(3), which show that the CE-type spin ordering (SO) at the phase boundary is stabilized only below the canted antiferromagnetic transition temperature and enhanced by ferromagnetism in the macroscopically insulating state (FM-I). Our results reveal the fragility of the CE-type ordering that underpins the colossal magnetoresistance effect in this system, as well as an unexpected cooperative interplay between FM-I and CE-type SO which is in contrast to the competitive interplay between the ferromagnetic metallic state and CE-type ordering.
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Affiliation(s)
- S Y Zhou
- Advanced Light Source, Lawrence Berkeley National Laboratory, California 94720, USA.
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29
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Kuwahara H, Okuda T, Tomioka Y, Kimura T, Asamitsu A, Tokura Y. Phase Diagram and Anisotropic Transport Properties of Nd1-xSrxMnO3 Crystals. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-494-83] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTWe have investigated electronic transport and magnetic properties of perovskite-type Nd1-xSrxMnO3 crystals with change of controlled hole-doping level (0.30≤x≤0.80). The electronic phase diagram of Nd1-xSrxMnO3 was obtained by systematic measurements of magnetization (magnetic structure), resistivity, and lattice parameter. We have also studied the anisotropie transport properties of x=0.50 and 0.55 crystals with different magnetic structures: CE-type antiferromagnetic (AF) structure for x=0.50 and A-type layered AF one for x=0.55. In the case of the x=0.55 crystal, the metallic behavior was observed within the ferromagnetic (F) layers, while along the AF-coupling direction the crystal remains insulating over the whole temperature region. The observed large anisotropy is due to the magnetic as well as orbital-ordering induced confinement of the spin-polarized carriers within the F sheets. The nearly isotropie transport behavior has been confirmed for the CE-type AF charge-ordered state in the x=0.50 crystal.
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30
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Tomioka Y, Ochiai K, Ohashi K, Kimura T, Umemura T. In ovoinfection with an avian leukosis virus causing fowl glioma: viral distribution and pathogenesis. Avian Pathol 2010; 32:617-24. [PMID: 14676013 DOI: 10.1080/03079450310001610640] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
We have previously isolated an avian leukosis virus (ALV) from a chicken affected with so-called fowl glioma. A resistance-inducing factor test indicated that the isolate was classified into a subgroup A. The distribution and pathogenicity were investigated in C/O specific pathogen free chickens infected in ovo with this virus. Histologically, 11 of 12 (92%) infected birds had non-suppurative encephalitis and three birds (25%) showed the characteristic nodules of fowl glioma at 50 or 100 days of age. Non-suppurative myocarditis with matrix inclusions and atypical myocytes were also noted in nine (75%) of the birds and the ALV antigens were immunohistochemically detected in various general organs as well as the central nervous system and heart. The semi-quantitative determination of the proviral DNA and viral RNA supported the immunohistochemical results and indicated that the virus was likely to replicate especially in myocardial fibres. The isolated ALV failed to induce other neoplastic lesions in this line of chickens within the experimental period of 100 days, despite the broad tissue tropism throughout the body. These results confirmed that this virus was able to induce glioma in embryo-inoculated chickens.
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Affiliation(s)
- Y Tomioka
- Laboratory of Comparative Pathology, Hokkaido University, Sapporo, Japan
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31
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Tomioka Y, Koshimizu M, Asai K. Positron lifetime study of Pr1−xCaxMnO3 (x=0.5, 0.3) during magnetic transition. Radiat Phys Chem Oxf Engl 1993 2009. [DOI: 10.1016/j.radphyschem.2009.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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32
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Demkó L, Kézsmárki I, Mihály G, Takeshita N, Tomioka Y, Tokura Y. Multicritical end point of the first-order ferromagnetic transition in colossal magnetoresistive manganites. Phys Rev Lett 2008; 101:037206. [PMID: 18764288 DOI: 10.1103/physrevlett.101.037206] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2007] [Indexed: 05/26/2023]
Abstract
We have studied the bandwidth-temperature-magnetic-field phase diagram of RE0.55Sr0.45MnO3 colossal magnetoresistance manganites with ferromagnetic metal (FM) ground state. The bandwidth was controlled both via chemical substitution and hydrostatic pressure with a focus on the vicinity of the critical pressure p;{*} where the character of the zero-field FM transition changes from first to second order. Below p;{*} the first-order FM transition extends up to a critical magnetic field. It approaches zero on the larger bandwidth side where the surface of the first-order FM phase boundary is terminated by a multicritical end point. The change in the character of the transition and the decrease of the colossal magnetoresistance effect is attributed to the reduced charge-order and orbital-order fluctuations.
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Affiliation(s)
- L Demkó
- Department of Physics, Budapest University of Technology and Economics and Condensed Matter Research Group of the Hungarian Academy of Sciences, 1111 Budapest, Hungary
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33
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Lopes AML, Araújo JP, Amaral VS, Correia JG, Tomioka Y, Tokura Y. New phase transition in the Pr1-xCaxMnO3 system: evidence for electrical polarization in charge ordered manganites. Phys Rev Lett 2008; 100:155702. [PMID: 18518125 DOI: 10.1103/physrevlett.100.155702] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2007] [Revised: 02/20/2008] [Indexed: 05/26/2023]
Abstract
In this Letter a detailed study of the electric field gradient (EFG) across the Pr(1-x)Ca(x)MnO(3) phase diagram and its temperature dependence is given. Clearly, distinct EFG behavior for samples outside or inside the charge order (CO) region are observed. The EFG temperature dependence evidences a new phase transition occurring over the broad CO region of the phase diagram. This transition is discontinuous and occurs at temperatures between the charge ordering and the Néel temperatures. The prominent features observed in the EFG are associated with polar atomic vibrations which eventually lead to a spontaneous local electric polarization below CO transition.
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Affiliation(s)
- A M L Lopes
- Departamento de Física and IN-IFIMUP, Universidade do Porto, Porto, Portugal.
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34
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Matsubara M, Okimoto Y, Ogasawara T, Tomioka Y, Okamoto H, Tokura Y. Ultrafast photoinduced insulator-ferromagnet transition in the perovskite manganite Gd0.55Sr0.45MnO3. Phys Rev Lett 2007; 99:207401. [PMID: 18233185 DOI: 10.1103/physrevlett.99.207401] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2007] [Indexed: 05/15/2023]
Abstract
We have investigated the ultrafast spin and charge dynamics in the course of a photoinduced phase transition from an insulator with short-range charge order and orbital order (OO) to a ferromagnetic metal in perovskite-type Gd0.55Sr0.45MnO3. Transient reflectivity changes suggest that the metallic state is formed just after the photoirradiation and decays within approximately 1 ps. The magnetization, however, increases with the time constant of 0.5 ps and decays in approximately 10 ps. The relatively slow increase of the magnetization is attributable to the magnetic-field-induced alignment of ferromagnetic domains in the initially produced metallic state and its slow decay to the partial recovery of the OO.
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Affiliation(s)
- M Matsubara
- Correlated Electron Research Center, National Institute of Advanced Industrial Science and Technology, Tsukuba 305-8562, Japan.
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35
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Polli D, Rini M, Wall S, Schoenlein RW, Tomioka Y, Tokura Y, Cerullo G, Cavalleri A. Coherent orbital waves in the photo-induced insulator-metal dynamics of a magnetoresistive manganite. Nat Mater 2007; 6:643-7. [PMID: 17694062 DOI: 10.1038/nmat1979] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2007] [Accepted: 07/06/2007] [Indexed: 05/15/2023]
Abstract
Photo-excitation can drive strongly correlated electron insulators into competing conducting phases, resulting in giant and ultrafast changes of their electronic and magnetic properties. The underlying non-equilibrium dynamics involve many degrees of freedom at once, whereby sufficiently short optical pulses can trigger the corresponding collective modes of the solid along temporally coherent pathways. The characteristic frequencies of these modes range between the few GHz of acoustic vibrations to the tens or even hundreds of THz for purely electronic excitations. Virtually all experiments so far have used 100 fs or longer pulses, detecting only comparatively slow lattice dynamics. Here, we use sub-10-fs optical pulses to study the photo-induced insulator-metal transition in the magnetoresistive manganite Pr(0.7)Ca(0.3)MnO(3). At room temperature, we find that the time-dependent pathway towards the metallic phase is accompanied by coherent 31 THz oscillations of the optical reflectivity, significantly faster than all lattice vibrations. These high-frequency oscillations are suggestive of coherent orbital waves, crystal-field excitations triggered here by impulsive stimulated Raman scattering. Orbital waves are likely to be initially localized to the small polarons of this room-temperature manganite, coupling to other degrees of freedom at longer times, as photo-domains coalesce into a metallic phase.
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Affiliation(s)
- D Polli
- ULTRAS-INFM-CNR Dipartimento di Fisica, Politecnico di Milano, Milano 20133, Italy
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36
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Hatai H, Ochiai K, Tomioka Y, Toyoda T, Hayashi K, Anada M, Kato M, Toda A, Ohashi K, Ono E, Kimura T, Umemura T. Nested polymerase chain reaction for detection of the avian leukosis virus causing so-called fowl glioma. Avian Pathol 2006; 34:473-9. [PMID: 16537161 DOI: 10.1080/03079450500368086] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The complete nucleotide sequence of the avian leukosis virus causing so-called fowl glioma has been previously determined. Primers were designed for detection of the fowl glioma-causal virus (FGV) based on the 3' untranslated region of the viral genome. The provirus and viral RNA of FGV were specifically detected in various organs and tissues, including feather pulp, from experimentally infected birds using nested polymerase chain reaction (PCR) and reverse transcription nested PCR. The prevalence of FGV was evaluated in 131 Japanese fowls of a zoological garden in Japan based on the detection of the FGV genome in feather pulp using PCR and the detection of viral antigen in faeces by enzyme-linked immunosorbent assay. FGV proviral DNA was detected in feather pulp of 52 birds (39.7%) by nested PCR. Later, nine dead birds from among the 52 were histologically diagnosed as having fowl glioma and found to have the proviral DNA in the affected brain. These results demonstrated that the PCR-based detection of FGV in feather pulp is useful for epidemiological studies on fowl glioma.
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Affiliation(s)
- H Hatai
- Laboratory of Comparative Pathology, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
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37
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Yamaguchi H, Hishinuma T, Endo N, Tsukamoto H, Kishikawa Y, Sato M, Murai Y, Hiratsuka M, Ito K, Okamura C, Yaegashi N, Suzuki N, Tomioka Y, Goto J. Genetic variation in ABCB1 influences paclitaxel pharmacokinetics in Japanese patients with ovarian cancer. Int J Gynecol Cancer 2006; 16:979-85. [PMID: 16803472 DOI: 10.1111/j.1525-1438.2006.00593.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Paclitaxel, an antineoplastic agent used for the treatment of ovarian cancer, is metabolized by cytochrome P450 (CYP)3A4 and CYP2C8 and is excreted from cells by ATP-binding cassette (ABCB1) (multi-drug resistance [MDR1], P-glycoprotein). Expression of these proteins is regulated by pregnane X receptor (PXR). Although there are common genetic polymorphisms in the genes encoding these proteins, their effect on the clinical efficacy of paclitaxel is unclear. We therefore examined the relationship of the paclitaxel pharmacokinetics in 13 patients with ovarian cancer to polymorphisms in CYP2C8, CYP3A5, ABCB1, and PXR. We found high interindividual variability in the plasma concentrations of two metabolites, 6alpha-hydroxypaclitaxel and p-3'-hydroxypaclitaxel. All the patients were genotyped as CYP2C8*1/*1. Neither the CYP3A5 A6986G (CYP3A5*3) nor the PXR C-25385T alleles were associated with altered plasma concentrations of paclitaxel and its metabolites. ABCB1 T-129C, T1236C, and G2677(A,T), however, was associated with lower area under the plasma concentration-time curve (AUC) of paclitaxel. We also observed a significant correlation between the AUC (r=-0.721) or the total clearance of paclitaxel (CL(tot)) (r= 0.673) and the ABCB1 mutant allele dosage in each patient. Taken together, our findings suggest that interindividual variability in paclitaxel pharmacokinetics could be predicted by ABCB1 genotyping.
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Affiliation(s)
- H Yamaguchi
- Division of Clinical Pharmacy, Graduate School of Pharmaceutical Sciences, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan
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38
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Ono E, Tomioka Y, Watanabe Y, Amagai K, Taharaguchi S, Glenisson J, Cherel P. The first immunoglobulin-like domain of porcine nectin-1 is sufficient to confer resistance to pseudorabies virus infection in transgenic mice. Arch Virol 2006; 151:1827-39. [PMID: 16583156 DOI: 10.1007/s00705-006-0747-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2005] [Accepted: 02/24/2006] [Indexed: 11/30/2022]
Abstract
Nectin-1 is an alphaherpesvirus receptor that binds to virion glycoprotein D (gD). Porcine nectin-1 mediates entry of pseudorabies virus (PRV), herpes simplex virus types 1 and 2 (HSV-1 and HSV-2), and bovine herpesvirus type 1 (BHV-1). The gD-binding domain of nectin-1 is the first or N-terminal immunoglobulin (Ig)-like domain of the entire ectodomain. Here, we generated three transgenic mouse lines expressing a fusion protein consisting of the first Ig-like domain of porcine nectin-1 and the Fc portion of porcine IgG1 to assess the antiviral potential of the first Ig-like domain of nectin-1 in vivo. All of the transgenic mouse lines showed significant resistance to PRV infection via intraperitoneal inoculation (survival rates of 67% to 100%). In the intranasal challenge, a lower but still significant protection was observed; 21% to 55% of the animals from the three transgenic mouse lines survived. The present results demonstrate that a soluble form of the first domain of porcine nectin-1 is able to exert a significant antiviral effect against pseudorabies virus infection.
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Affiliation(s)
- E Ono
- The Avian Zoonoses Research Centre, Faculty of Agriculture, Tottori University, Tottori, Japan.
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39
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Yamaguchi H, Hishinuma T, Endo N, Tsukamoto H, Kishikawa Y, Sato M, Murai Y, Hiratsuka M, Ito K, Okamura C, Yaegashi N, Suzuki N, Tomioka Y, Goto J. Genetic variation in ABCB1 influences paclitaxel pharmacokinetics in Japanese patients with ovarian cancer. Int J Gynecol Cancer 2006. [DOI: 10.1136/ijgc-00009577-200605000-00004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Paclitaxel, an antineoplastic agent used for the treatment of ovarian cancer, is metabolized by cytochrome P450 (CYP)3A4 and CYP2C8 and is excreted from cells by ATP-binding cassette (ABCB1) (multi-drug resistance [MDR1], P-glycoprotein). Expression of these proteins is regulated by pregnane X receptor (PXR). Although there are common genetic polymorphisms in the genes encoding these proteins, their effect on the clinical efficacy of paclitaxel is unclear. We therefore examined the relationship of the paclitaxel pharmacokinetics in 13 patients with ovarian cancer to polymorphisms in CYP2C8, CYP3A5, ABCB1, and PXR. We found high interindividual variability in the plasma concentrations of two metabolites, 6α-hydroxypaclitaxel and p-3′-hydroxypaclitaxel. All the patients were genotyped as CYP2C8*1/*1. Neither the CYP3A5 A6986G (CYP3A5*3) nor the PXR C-25385T alleles were associated with altered plasma concentrations of paclitaxel and its metabolites. ABCB1 T-129C, T1236C, and G2677(A,T), however, was associated with lower area under the plasma concentration–time curve (AUC) of paclitaxel. We also observed a significant correlation between the AUC (r = −0.721) or the total clearance of paclitaxel (CLtot) (r = 0.673) and the ABCB1 mutant allele dosage in each patient. Taken together, our findings suggest that interindividual variability in paclitaxel pharmacokinetics could be predicted by ABCB1 genotyping.
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40
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Ye F, Dai P, Fernandez-Baca JA, Sha H, Lynn JW, Kawano-Furukawa H, Tomioka Y, Tokura Y, Zhang J. Evolution of spin-wave excitations in ferromagnetic metallic manganites. Phys Rev Lett 2006; 96:047204. [PMID: 16486884 DOI: 10.1103/physrevlett.96.047204] [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: 08/31/2005] [Indexed: 05/06/2023]
Abstract
Neutron scattering results are presented for spin-wave excitations of three ferromagnetic metallic A1-xA'xMnO3 manganites (where A and A' are rare- and alkaline-earth-metal ions), which when combined with previous work elucidate the systematics of the interactions as a function of carrier concentration x, on-site disorder, and strength of the lattice distortion. The long-wavelength spin dynamics show only a very weak dependence across the series. The ratio of fourth to first neighbor exchange (J4/J1) that controls the zone boundary magnon softening changes systematically with x, but does not depend on the other parameters. None of the prevailing models can account for these behaviors.
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Affiliation(s)
- F Ye
- Center for Neutron Scattering, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6393, USA
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41
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Ogasawara T, Ohgushi K, Tomioka Y, Takahashi KS, Okamoto H, Kawasaki M, Tokura Y. General features of photoinduced spin dynamics in ferromagnetic and ferrimagnetic compounds. Phys Rev Lett 2005; 94:087202. [PMID: 15783924 DOI: 10.1103/physrevlett.94.087202] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2004] [Indexed: 05/24/2023]
Abstract
Ultrafast photoinduced spin dynamics has been investigated by time-resolved magneto-optical Kerr spectroscopy for various ferromagnetic and ferrimagnetic compounds: FeCr2S4, CoCr2S4, CuCr2Se4, CdCr2Se4, La0.6Sr0.4MnO3, and SrRuO3. The temporal demagnetization process, which is observed commonly for all the compounds, essentially consists of two components: One is an instantaneous change which originates perhaps from multiple emissions of magnetic excitations during nonradiative decay of photoexcited carriers, and the other is a delayed response due to thermalization of the spin system. The time constant of the delayed change depends strongly on materials and is scaled with the magnetocrystalline anisotropy, indicating that spin-orbit coupling is a dominant interaction for this process.
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Affiliation(s)
- T Ogasawara
- Correlated Electron Research Center (CERC), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 305-8562, Japan
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42
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Grenier S, Hill JP, Kiryukhin V, Ku W, Kim YJ, Thomas KJ, Cheong SW, Tokura Y, Tomioka Y, Casa D, Gog T. d-d excitations in manganites probed by resonant inelastic x-ray scattering. Phys Rev Lett 2005; 94:047203. [PMID: 15783591 DOI: 10.1103/physrevlett.94.047203] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2004] [Indexed: 05/24/2023]
Abstract
We report a study of electronic excitations in manganites exhibiting a range of ground states, using resonant inelastic x-ray scattering (RIXS) at the Mn K edge. Excitations with temperature dependent changes correlated with the magnetism were observed as high as 10 eV. By calculating Wannier functions, and finite-q response functions, we associate this dependence with intersite d-d excitations. The calculated dynamical structure factor is found to be similar to the RIXS spectra.
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Affiliation(s)
- S Grenier
- Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08854, USA
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43
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Endoh Y, Hiraka H, Tomioka Y, Tokura Y, Nagaosa N, Fujiwara T. Orbital nature of ferromagnetic magnons in manganites. Phys Rev Lett 2005; 94:017206. [PMID: 15698129 DOI: 10.1103/physrevlett.94.017206] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2004] [Indexed: 05/24/2023]
Abstract
Magnon excitation in a ferromagnetic state of Sm(0.55)Sr(0.45)MnO(3) located on the verge of the metal-insulator transition has been studied in terms of the neutron scattering experiment. The anomalous magnon dispersion with the zone-boundary softening is well described by the Heisenberg model with extended exchange coupling constants J(s). In particular the fourth neighbor coupling J(4) is as large as 0.6 times the nearest neighbor one J(1). Theoretical analysis based on the local density approximation + Hubbard U band calculation reveals that this one-dimensional exchange path is due to the (3z(2)-r(2))-type orbital correlation, in sharp contrast to previous proposals.
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Affiliation(s)
- Y Endoh
- Institute for Materials Research, Tohoku University, Katahira, Sendai 980-8577, Japan
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44
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Mathieu R, Akahoshi D, Asamitsu A, Tomioka Y, Tokura Y. Colossal magnetoresistance without phase separation: disorder-induced spin glass state and nanometer scale orbital-charge correlation in half doped manganites. Phys Rev Lett 2004; 93:227202. [PMID: 15601112 DOI: 10.1103/physrevlett.93.227202] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2004] [Indexed: 05/24/2023]
Abstract
The magnetic and electrical properties of high-quality single crystals of A-site disordered (solid solution) Ln0.5Ba0.5MnO3 are investigated near the phase boundary between the spin-glass insulator and colossal-magnetoresistive ferromagnetic metal, locating near Ln=Sm. The temperature dependence of the ac susceptibility and the x-ray diffuse scattering of Eu0.5Ba0.5MnO3 are analyzed in detail. The uniformity of the random potential perturbation in Ln0.5Ba0.5MnO3 crystals with a small bandwidth yields, rather than the phase separation, an homogeneous short ranged charge or orbital order which gives rise to a nearly atomic spin-glass state. Remarkably, this microscopically disordered "charge-exchange-glass" state alone is able to bring forth the colossal magnetoresistance.
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Affiliation(s)
- R Mathieu
- Spin Superstructure Project (ERATO-SSS), JST, AIST Central 4, Tsukuba 305-8562, Japan.
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45
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Thomas KJ, Hill JP, Grenier S, Kim YJ, Abbamonte P, Venema L, Rusydi A, Tomioka Y, Tokura Y, McMorrow DF, Sawatzky G, van Veenendaal M. Soft x-ray resonant diffraction study of magnetic and orbital correlations in a manganite near half doping. Phys Rev Lett 2004; 92:237204. [PMID: 15245194 DOI: 10.1103/physrevlett.92.237204] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2003] [Indexed: 05/24/2023]
Abstract
We have utilized resonant x-ray diffraction at the Mn L(II,III) edges in order to directly compare magnetic and orbital correlations in Pr0.6Ca0.4MnO3. Comparing the widths of the magnetic and orbital diffraction peaks, we find that the magnetic correlation length exceeds that of the orbital order by nearly a factor of 2. Furthermore, we observe a large (approximately 3 eV) spectral weight shift between the magnetic and orbital resonant line shapes, which cannot be explained within the classic Goodenough picture of a charge-ordered ground state. To explain the shift, we calculate the orbital and magnetic resonant diffraction line shapes based on a relaxed charge-ordered model.
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Affiliation(s)
- K J Thomas
- Department of Physics, Brookhaven National Laboratory, Upton, New York 11973, USA
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Mannella N, Rosenhahn A, Booth CH, Marchesini S, Mun BS, Yang SH, Ibrahim K, Tomioka Y, Fadley CS. Direct observation of high-temperature polaronic behavior in colossal magnetoresistive manganites. Phys Rev Lett 2004; 92:166401. [PMID: 15169249 DOI: 10.1103/physrevlett.92.166401] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2003] [Indexed: 05/24/2023]
Abstract
The temperature dependence of the electronic and atomic structure of the colossal magnetoresistive oxides La1-xSrxMnO3 (x=0.3, 0.4) has been studied using core and valence level photoemission, x-ray absorption and emission, and extended x-ray absorption fine structure spectroscopy. A dramatic and reversible change of the electronic structure is observed on crossing the Curie temperature, including charge localization on and spin-moment increase of Mn, together with Jahn-Teller distortions, both signatures of polaron formation. Our data are also consistent with a phase-separation scenario.
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Affiliation(s)
- N Mannella
- Department of Physics, UC Davis, Davis, California 95616, USA.
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Tomioka Y, Ochiai K, Ohashi K, Ono E, Toyoda T, Kimura T, Umemura T. Genome sequence analysis of the avian retrovirus causing so-called fowl glioma and the promoter activity of the long terminal repeat. J Gen Virol 2004; 85:647-652. [PMID: 14993650 DOI: 10.1099/vir.0.79778-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
So-called fowl glioma is a retroviral infectious disease caused by avian leukosis virus subgroup A (ALV-A). We determined the complete nucleotide sequence of the virus genome. The full-length sequence was consistent with a genetic organization typical of a replication-competent type C retrovirus lacking viral oncogenes. The coding sequences were well conserved with those of replication-competent viruses, but the 3' noncoding regions including LTR were most related to those of replication-defective sarcoma viruses. The U3 region of the LTR had a few deletions and several point mutations compared to that of other ALVs. The promoter activities of the LTRs of glioma-inducing ALV and ALV-A standard strain, RAV-1, were equivalent in chick embryo fibroblasts (CEF), while that of glioma-inducing ALV was significantly lower than that of RAV-1 in human astrocytic cells. These subtle differences of the promoter activity of the LTR may be related to the induction of glial neoplasm.
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Affiliation(s)
- Y Tomioka
- Laboratory of Comparative Pathology, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
| | - K Ochiai
- Laboratory of Comparative Pathology, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
| | - K Ohashi
- Laboratory of Infectious Disease, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
| | - E Ono
- Laboratory of Animal Experiment for Disease Model, Institute for Genetic Medicine, Hokkaido University, Sapporo, 060-0815, Japan
| | - T Toyoda
- Laboratory of Comparative Pathology, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
| | - T Kimura
- Laboratory of Comparative Pathology, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
| | - T Umemura
- Laboratory of Comparative Pathology, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
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Akahoshi D, Uchida M, Tomioka Y, Arima T, Matsui Y, Tokura Y. Random potential effect near the bicritical region in perovskite manganites as revealed by comparison with the ordered perovskite analogs. Phys Rev Lett 2003; 90:177203. [PMID: 12786099 DOI: 10.1103/physrevlett.90.177203] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2002] [Indexed: 05/24/2023]
Abstract
The orbital-charge-spin ordering phase diagram for half-doped perovskites Ln(1/2)Ba(1/2)MnO3 (Ln = rare earth) with ordered Ln/Ba cations has been investigated comparatively with that of the Ln/Ba solid-solution analogs. A large modification of the phase diagram is observed upon the A-site disordering near the original bicritical point between the charge-orbital ordering and ferromagnetic metallic phases. The random potential by quenched disorder inherent in the A-site solid solution is found to suppress the respective long-range orders and gives rise to the colossal magnetoresistive state.
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Affiliation(s)
- D Akahoshi
- Correlated Electron Research Center, Advanced Industrial Science and Technology, Tsukuba 305-8562, Japan
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Van Aken BB, Jurchescu OD, Meetsma A, Tomioka Y, Tokura Y, Palstra TTM. Orbital-order-induced metal-insulator transition in La(1-x)Ca(x)MnO3. Phys Rev Lett 2003; 90:066403. [PMID: 12633312 DOI: 10.1103/physrevlett.90.066403] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2002] [Indexed: 05/24/2023]
Abstract
We present evidence that the insulator-to-metal transition in La(1-x)Ca(x)MnO3 near x approximately 0.2 is driven by the suppression of coherent Jahn-Teller distortions, originating from d-type orbital ordering. The orbital-ordered state is characterized by large long-range Q2 distortions below T(O'- O*). Above T(O'- O*) we find evidence for coexistence between an orbital-ordered and an orbital-disordered state. This behavior is discussed in terms of electronic phase separation in an orbital-ordered insulating and an orbital-disordered metallic state.
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Affiliation(s)
- Bas B Van Aken
- Solid State Chemistry Laboratory, Materials Science Centre, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
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Yamazaki T, Yokoo T, Tomioka Y, Suzuki H, Hishinuma T, Mizugaki M. Effect of peroxisome proliferator-activated receptor gamma on thromboxane A(2) and prostaglandin E(2) production in macrophage cell lines. Prostaglandins Leukot Essent Fatty Acids 2002; 67:245-51. [PMID: 12401439 DOI: 10.1054/plef.2002.0426] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We studied the effect of peroxisome proliferator-activated receptor gamma (PPARgamma) activation on thromboxane A(2)(TXA(2)) and prostaglandin E(2)(PGE(2)) production in monocyte/macrophage cell lines. In present experiment, we used human peripheral blood monocyte (PBMC), monocyte-cell line THP-1 and mouse macrophage-like cell line RAW264.7. The expression of PPARgamma is reported in PBMC and THP-1. Synthetic PPARgamma ligands (troglitazone or BRL49653) inhibited TXA(2) production and enhanced PGE(2) production of PBMC and THP-1. When treated with 0.5-10 microM of troglitazone, there were no significant changes of TXA(2) and PGE(2) production of RAW264.7 cells, which express very low levels of PPARgamma. When RAW264.7 cells was transfected with PPARgamma expression plasmid and treated with troglitazone, PPARgamma was activated in a dose-dependent manner. In PPARgamma-transfected RAW264.7, TXA(2) production was decreased and PGE(2) production was increased by troglitazone treatment. But it needs high concentration of troglitazone (10 microM) for increasing PGE(2) production. These results suggest that PPARgamma may have negative effect on TXA(2) production, and also have slightly positive effect on PGE(2) production of macrophage.
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Affiliation(s)
- T Yamazaki
- Department of Pharmaceutical Sciences, Tohoku University Hospital, Seiryo-machi, Aoba-ku, Sendai, Japan
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