1
|
Kobayashi Y, Nagai T, Hirata K, Tsuneta S, Kato Y, Komoriyama H, Kamiya K, Konishi T, Sato T, Omote K, Ohira H, Kudoh K, Konno S, Anzai T. Association of high serum soluble interleukin 2 receptor levels with risk of adverse events in patients with cardiac sarcoidosis. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Background
Sarcoidosis is a systemic granulomatous disease that affects multiple organs. Among these, the presence of cardiac involvement is recognised as a determinant of worse clinical outcomes. Soluble interleukin 2 receptor (sIL-2R) is a potentially useful biomarker in the diagnosis and evaluation of disease severity in patients with sarcoidosis. However, it remains to be seen whether sIL-2R is associated with the severity and activity of disease in patients with cardiac sarcoidosis (CS).
Purpose
The aims of this study were to investigate whether sIL-2R was associated with clinical outcomes and to clarify the relationship between sIL-2R levels and disease activity evaluated by 18F-fluorideoxyglucose in positron emission tomography/computed tomography (18F-FDG PET/CT) in patients with CS.
Methods
We examined 101 consecutive patients with CS who were admitted to our University HospitalbetweenMay 2003 and February 2020. Patients who had no data of serum sIL-2R levels before initiation of immunosuppressive therapy (n=18) were excluded. Ultimately, 83 patients were examined in this study. The primary outcome was a composite of advanced atrioventricular block (AVB), ventricular tachycardia or ventricular fibrillation (VT/VF), heart failure hospitalisation, and all-cause death. Inflammatory activity in the myocardium and lymph nodes were assessed by18F-FDG PET/CT. We used a published program to analyse the cardiac metabolic activity (CMA), and total lymph node glycolysis (TLyG), which are quantitative measures of FDG volume-intensity.
Results
During a median follow-up period of 2.96 (interquartile range 2.24–4.27) years, the primary outcome occurred in 24 patients (29%), including 1 advanced AVB, 13 VT/VF, 5 hospitalisations for heart failure, and 5 all-cause deaths. Kaplan-Meier analyses showed that the primary outcome occurred more frequently in patients with higher sIL-2R levels (>538 U/mL, the median) than in those with lower sIL-2R levels (Figure). A multivariable Cox regression analysis revealed that a higher sIL-2R level was independently associated with an increased subsequent risk of adverse events (hazard ratio 3.71, 95% confidence interval 1.63–8.44, p=0.002), even after adjustments for age, plasma B-type natriuretic peptide, estimated glomerular filtration rate, left ventricular ejection fraction, and late gadolinium enhancement, which are known to be strong determinants of worse clinical outcomes in patients with CS (Table). Furthermore, sIL-2R levels were significantly correlated with TLyG, the inflammatory activity in lymph nodes (r=0.346, p=0.003) but not with CMA, the inflammatory activity in myocardium (r=0.131, p=0.27).
Conclusions
Increased sIL-2R is associated with worse long-term clinical outcomes accompanied by increased systemic inflammatory activity in CS patients. These findings suggest the importance of assessing sIL-2R as a surrogate marker for further risk stratification in these patients.
Funding Acknowledgement
Type of funding sources: Public Institution(s). Main funding source(s): Japan Society for the Promotion of Science
Collapse
Affiliation(s)
- Y Kobayashi
- Hokkaido University, Department of Cardiovascular Medicine, Sapporo, Japan
| | - T Nagai
- Hokkaido University, Department of Cardiovascular Medicine, Sapporo, Japan
| | - K Hirata
- Hokkaido University, Department of Diagnostic Imaging, Sapporo, Japan
| | - S Tsuneta
- Hokkaido University, Department of Diagnostic Imaging, Sapporo, Japan
| | - Y Kato
- Hokkaido University, Department of Cardiovascular Medicine, Sapporo, Japan
| | - H Komoriyama
- Hokkaido University, Department of Cardiovascular Medicine, Sapporo, Japan
| | - K Kamiya
- Hokkaido University, Department of Cardiovascular Medicine, Sapporo, Japan
| | - T Konishi
- Hokkaido University, Department of Cardiovascular Medicine, Sapporo, Japan
| | - T Sato
- Hokkaido University, Department of Cardiovascular Medicine, Sapporo, Japan
| | - K Omote
- Hokkaido University, Department of Cardiovascular Medicine, Sapporo, Japan
| | - H Ohira
- Hokkaido University, Department of Respiratory Medicine, Sapporo, Japan
| | - K Kudoh
- Hokkaido University, Department of Diagnostic Imaging, Sapporo, Japan
| | - S Konno
- Hokkaido University, Department of Respiratory Medicine, Sapporo, Japan
| | - T Anzai
- Hokkaido University, Department of Cardiovascular Medicine, Sapporo, Japan
| |
Collapse
|
2
|
Toigo V, Marcuzzi D, Serianni G, Boldrin M, Chitarin G, Bello SD, Grando L, Luchetta A, Pasqualotto R, Zaccaria P, Zanotto L, Agnello R, Agostinetti P, Agostini M, Antoni V, Aprile D, Barbisan M, Battistella M, Berton G, Bigi M, Brombin M, Candeloro V, Canton A, Casagrande R, Cavallini C, Cavazzana R, Cordaro L, Cruz N, Palma MD, Dan M, De Lorenzi A, Delogu R, De Muri M, Denizeau S, Fadone M, Fellin F, Ferro A, Gaio E, Gasparini F, Gasparrini C, Gnesotto F, Jain P, Krastev P, Lopez-Bruna D, Lorenzini R, Maistrello A, Manduchi G, Manfrin S, Marconato N, Martines E, Martini G, Martini S, Milazzo R, Patton T, Pavei M, Peruzzo S, Pilan N, Pimazzoni A, Poggi C, Pomaro N, Pouradier-Duteil B, Recchia M, Rigoni-Garola A, Rizzolo A, Sartori E, Shepherd A, Siragusa M, Sonato P, Sottocornola A, Spada E, Spagnolo S, Spolaore M, Taliercio C, Terranova D, Tinti P, Tomsič P, Trevisan L, Ugoletti M, Valente M, Vignando M, Zagorski R, Zamengo A, Zaniol B, Zaupa M, Zuin M, Cavenago M, Boilson D, Rotti C, Veltri P, Decamps H, Dremel M, Graceffa J, Geli F, Urbani M, Zacks J, Bonicelli T, Paolucci F, Garbuglia A, Agarici G, Gomez G, Gutierrez D, Kouzmenko G, Labate C, Masiello A, Mico G, Moreno JF, Pilard V, Rousseau A, Simon M, Kashiwagi M, Tobari H, Watanabe K, Maejima T, Kojima A, Oshita E, Yamashita Y, Konno S, Singh M, Chakraborty A, Patel H, Singh N, Fantz U, Bonomo F, Cristofaro S, Heinemann B, Kraus W, Wimmer C, Wünderlich D, Fubiani G, Tsumori K, Croci G, Gorini G, McCormack O, Muraro A, Rebai M, Tardocchi M, Giacomelli L, Rigamonti D, Taccogna F, Bruno D, Rutigliano M, D'Arienzo M, Tonti A, Panin F. On the road to ITER NBIs: SPIDER improvement after first operation and MITICA construction progress. Fusion Engineering and Design 2021. [DOI: 10.1016/j.fusengdes.2021.112622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
3
|
Munakata M, Hattori T, Konno S, Nakayama F, Inoue N, Ito H, Nakamura T, Hozawa A. Overtime is associated with increased cardio-metabolic risks possibly preceding endothelial damage: Miyagi Karoshi prevention study for teachers. Atherosclerosis 2020. [DOI: 10.1016/j.atherosclerosis.2020.10.351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
4
|
Eda M, Yamasaki T, Izumi H, Tomita N, Konno S, Konno M, Murakami H, Sato F. Cryptic species in a Vulnerable seabird: shorttailed albatross consists of two species. ENDANGER SPECIES RES 2020. [DOI: 10.3354/esr01078] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The occurrence of cryptic species within a threatened taxon is rare, but where they do occur, understanding species boundaries is essential for planning an effective conservation strategy. The short-tailed albatross Phoebastria albatrus is a Vulnerable seabird that mainly breeds on Torishima and the Senkaku Islands in the western North Pacific. Although it has been tacitly regarded as a single management unit with 2 breeding sites, the species is known to comprise 2 genetically separated populations (Senkaku-type and Torishima-type). However, morphological examination of birds from both populations has not been conducted owing to the difficulty in accessing the Senkaku Islands. In this study, we examined the morphological differences between immigrants from the Senkaku Islands to Torishima (Senkaku-type) and native birds on Torishima (Torishima-type) and found significant differences in morphological characteristics between the 2 bird types. In general, Torishima-type birds were larger than Senkaku-type birds, whereas Senkaku-type birds had relatively longer beaks. Based on the morphological differences found in this study as well as genetic and ecological differences revealed in previous studies, we believe that Senkaku- and Torishima-type birds should be classified as different cryptic species. To the best of our knowledge, this is the first case of cryptic species being identified in a threatened avian species.
Collapse
Affiliation(s)
- M Eda
- Hokkaido University Museum, Hokkaido University, Kita 10, Nishi 8, Kita-ku, Sapporo 060-0810, Japan
| | - T Yamasaki
- Division of Natural History, Yamashina Institute for Ornithology, Konoyama 115, Abiko 270-1145, Japan
| | - H Izumi
- Hokkaido University Museum, Hokkaido University, Kita 10, Nishi 8, Kita-ku, Sapporo 060-0810, Japan
| | - N Tomita
- Division of Avian Conservation, Yamashina Institute for Ornithology, Konoyama 115, Abiko 270-1145, Japan
| | - S Konno
- Division of Avian Conservation, Yamashina Institute for Ornithology, Konoyama 115, Abiko 270-1145, Japan
| | - M Konno
- Division of Avian Conservation, Yamashina Institute for Ornithology, Konoyama 115, Abiko 270-1145, Japan
| | - H Murakami
- Division of Avian Conservation, Yamashina Institute for Ornithology, Konoyama 115, Abiko 270-1145, Japan
| | - F Sato
- Division of Avian Conservation, Yamashina Institute for Ornithology, Konoyama 115, Abiko 270-1145, Japan
| |
Collapse
|
5
|
Shoji T, Kikuchi E, Kikuchi J, Maeda M, Takashima Y, Furuta M, Takahashi H, Kinoshita I, Dosaka-Akita H, Sakakibara-Konishi J, Konno S. P2.03-53 Immunoproteasome as a Potential Therapeutic Target in Cisplatin-Resistant Small and Non-Small Cell Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
6
|
Nishida Y, Takahashi YK, Kanai T, Nose Y, Ishibashi S, Sanjo N, Uzawa A, Oda F, Ozawa Y, Kuwabara S, Noguchi E, Suzuki S, Nakahara J, Suzuki N, Ogawa T, Yokoyama K, Hattori N, Konno S, Fujioka T, Kawaguchi N, Hatanaka Y, Sonoo M, Kaneko J, Ogino M, Nishiyama K, Nomura K, Yokota T. Safety of tapering tacrolimus dose in patients with well-controlled anti-acetylcholine receptor antibody-positive myasthenia gravis. Eur J Neurol 2019; 27:100-104. [PMID: 31309642 DOI: 10.1111/ene.14039] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 07/10/2019] [Indexed: 01/09/2023]
Abstract
BACKGROUND AND PURPOSE Tapering immunosuppressants is desirable in patients with well-controlled myasthenia gravis (MG). However, the association between tapering of calcineurin inhibitor dosage and reduction-associated exacerbation is not known. The aim of this study was to clarify the frequency of reduction-associated exacerbation when tacrolimus is tapered in stable patients with anti-acetylcholine receptor antibody-positive MG, and to determine the factors that predict exacerbations. METHODS We retrospectively analyzed 115 patients in whom tacrolimus dosage was tapered. The reduction-associated exacerbation was defined as the appearance or worsening of one or more MG symptoms <3 months after the reduction. RESULTS Tacrolimus dosage was successfully tapered in 110 patients (96%) without any exacerbation. Five patients (4%) experienced an exacerbation, but symptoms were reversed in all patients when the tacrolimus dose was increased to the previous maintenance level. No patient developed an MG crisis. The age at onset was significantly earlier (30 vs. 56 years, P = 0.025) and the reduction in dosage was significantly larger (2.0 vs. 1.0 mg/day, P = 0.002) in patients with reduction-associated exacerbation than in those without exacerbation. The cut-off values determined in a receiver-operating characteristic curve analysis were 52 years (sensitivity, 57%; specificity, 100%) for the age at onset and 1.5 mg (sensitivity, 80%; specificity, 100%) for the dose reduction. CONCLUSION Tapering of tacrolimus was possible in most patients with well-controlled anti-acetylcholine receptor antibody-positive MG. Early age at onset and a large reduction from maintenance dosage were associated with exacerbation. Reductions ≤1.5 mg/day from the maintenance dosage should be considered for patients with late-onset disease.
Collapse
Affiliation(s)
- Y Nishida
- Department of Neurology and Neurological Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Y K Takahashi
- Department of Neurology and Neurological Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - T Kanai
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Y Nose
- Department of Neurology and Neurological Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - S Ishibashi
- Department of Neurology and Neurological Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - N Sanjo
- Department of Neurology and Neurological Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - A Uzawa
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - F Oda
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Y Ozawa
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - S Kuwabara
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - E Noguchi
- Department of Neurology, Keio University School of Medicine, Tokyo, Japan
| | - S Suzuki
- Department of Neurology, Keio University School of Medicine, Tokyo, Japan
| | - J Nakahara
- Department of Neurology, Keio University School of Medicine, Tokyo, Japan
| | - N Suzuki
- Department of Neurology, Keio University School of Medicine, Tokyo, Japan
| | - T Ogawa
- Department of Neurology, Juntendo University School of Medicine, Tokyo, Japan
| | - K Yokoyama
- Department of Neurology, Juntendo University School of Medicine, Tokyo, Japan
| | - N Hattori
- Department of Neurology, Juntendo University School of Medicine, Tokyo, Japan
| | - S Konno
- Department of Neurology, Toho University Ohashi Medical Center, Tokyo, Japan
| | - T Fujioka
- Department of Neurology, Toho University Ohashi Medical Center, Tokyo, Japan
| | | | - Y Hatanaka
- Department of Neurology, Teikyo University School of Medicine, Tokyo, Japan
| | - M Sonoo
- Department of Neurology, Teikyo University School of Medicine, Tokyo, Japan
| | - J Kaneko
- Department of Neurology, Kitasato University School of Medicine, Kanagawa, Japan
| | - M Ogino
- School of Medicine, Center for Medical Education, International University of Health and Welfare, Chiba, Japan
| | - K Nishiyama
- Department of Neurology, Kitasato University School of Medicine, Kanagawa, Japan
| | - K Nomura
- Department of Neurology, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - T Yokota
- Department of Neurology and Neurological Science, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| |
Collapse
|
7
|
Kimura H, Konno S, Makita H, Taniguchi N, Shimizu K, Suzuki M, Kimura H, Goudarzi H, Nakamaru Y, Ono J, Ohta S, Izuhara K, Ito YM, Wenzel SE, Nishimura M. Prospective predictors of exacerbation status in severe asthma over a 3-year follow-up. Clin Exp Allergy 2018; 48:1137-1146. [PMID: 29781543 DOI: 10.1111/cea.13170] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 03/14/2018] [Accepted: 03/29/2018] [Indexed: 12/15/2022]
Abstract
BACKGROUND A predisposition to exacerbations is being recognized as a distinct phenotype with "previous exacerbations" representing the strongest clinical factor associated with future exacerbation. Thus, to identify additional novel biomarkers associated with asthma exacerbations, "past exacerbation status" must be included as a confounding factor. OBJECTIVE This study aimed to characterize the clinical and biomarker features associated with asthma exacerbations in severe asthma. METHODS We evaluated clinical parameters from 105 severe asthmatics yearly for 3 years, as well as their exacerbation status. We classified the subjects into 3 groups: (i) consistent non-exacerbators (CNE, subjects who did not experience any exacerbation over the 3-year period); (ii) consistent frequent exacerbators (CFE, subjects with frequent exacerbation, defined as those who had 2 or more exacerbations within 1 year, throughout the 3-year period); and (iii) intermittent exacerbators (IE). We conducted multivariate analysis for comparisons among the groups for multiple factors, including several Th2-related biomarkers, in addition to the "past exacerbation status." RESULTS Thirty-nine subjects were classified as CNE, 15 as CFE, and 51 as IE. Frequent exacerbations in the previous year predicted exacerbations for the following year (P < .001). Among the several Th2-related biomarkers, only FeNO was associated with exacerbation status. When we analysed the data after the second visit, the impact of FeNO on predicting future exacerbation remained significant, even after considering the exacerbation status during the first year (P < .05). CONCLUSIONS AND CLINICAL RELEVANCE Measurement of FeNO has a significant potential to predict future asthma exacerbation, which is independent of the "past exacerbation history."
Collapse
Affiliation(s)
- H Kimura
- Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - S Konno
- Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - H Makita
- Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - N Taniguchi
- Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - K Shimizu
- Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - M Suzuki
- Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - H Kimura
- Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - H Goudarzi
- Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Y Nakamaru
- Otolaryngology Head and Neck Surgery, Hokkaido University School of Medicine, Sapporo, Japan
| | - J Ono
- Shino-Test Corporation, Kanagawa, Japan
| | - S Ohta
- Division of Medical Biochemistry, Department of Biomolecular Sciences, Saga Medical School, Saga, Japan
| | - K Izuhara
- Division of Medical Biochemistry, Department of Biomolecular Sciences, Saga Medical School, Saga, Japan
| | - Y M Ito
- Department of Biostatistics, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - S E Wenzel
- University of Pittsburgh Asthma Institute at UPMC/University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - M Nishimura
- Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | | |
Collapse
|
8
|
Utsugisawa K, Nagane Y, Akaishi T, Suzuki Y, Imai T, Tsuda E, Minami N, Uzawa A, Kawaguchi N, Masuda M, Konno S, Suzuki H, Murai H, Aoki M. Early fast-acting treatment strategy against generalized myasthenia gravis. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3054] [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]
|
9
|
Imamura T, Konno S, Murata M, Inoue M, Matsumoto M, Kobayashi M, Kihara H, Sugimoto H, Fujioka T. High serum osmotic pressure on admission suggests hidden malnutrition in patients with neurological disease. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
10
|
Munakata M, Hattori T, Konno S. Very mild renal endothelial damage and glomerular hyperfiltration may precede incident hypertension in the Japanese general population: The Watari study. Atherosclerosis 2016. [DOI: 10.1016/j.atherosclerosis.2016.07.733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
11
|
Kimura H, Suzuki M, Konno S, Nishimura M, Bobolea I, Barranco P, del Pozo V, Romero D, Sanz V, López-Carrasco V, Canabal J, Villasante C, Quirce S. Sputum periostin in patients with different severe asthma phenotypes. Allergy 2015; 70:884-5. [PMID: 26081263 DOI: 10.1111/all.12639] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- H. Kimura
- First Department of Medicine; Hokkaido University School of Medicine; Sapporo Japan
| | - M. Suzuki
- First Department of Medicine; Hokkaido University School of Medicine; Sapporo Japan
| | - S. Konno
- First Department of Medicine; Hokkaido University School of Medicine; Sapporo Japan
| | - M. Nishimura
- First Department of Medicine; Hokkaido University Hospital; Sapporo Japan
| | - I. Bobolea
- Department of Allergy; Hospital La Paz Institute for Health Research (IdiPAZ); Madrid Spain
| | - P. Barranco
- Department of Allergy; Hospital La Paz Institute for Health Research (IdiPAZ); Madrid Spain
- Spanish Network of Centers for Biomedical Research on Respiratory Diseases (CIBERES); Madrid Spain
| | - V. del Pozo
- Spanish Network of Centers for Biomedical Research on Respiratory Diseases (CIBERES); Madrid Spain
- Department of Immunology; IIS-Fundación Jiménez Díaz; Madrid Spain
| | - D. Romero
- Department of Pneumology; Hospital La Paz Institute for Health Research (IdiPAZ); Madrid Spain
| | - V. Sanz
- Spanish Network of Centers for Biomedical Research on Respiratory Diseases (CIBERES); Madrid Spain
- Department of Immunology; IIS-Fundación Jiménez Díaz; Madrid Spain
| | - V. López-Carrasco
- Department of Allergy; Hospital La Paz Institute for Health Research (IdiPAZ); Madrid Spain
| | - J. Canabal
- Department of Allergy; Hospital La Paz Institute for Health Research (IdiPAZ); Madrid Spain
| | - C. Villasante
- Department of Pneumology; Hospital La Paz Institute for Health Research (IdiPAZ); Madrid Spain
| | - S. Quirce
- Department of Allergy; Hospital La Paz Institute for Health Research (IdiPAZ); Madrid Spain
- Spanish Network of Centers for Biomedical Research on Respiratory Diseases (CIBERES); Madrid Spain
| |
Collapse
|
12
|
Yatagai Y, Sakamoto T, Yamada H, Masuko H, Kaneko Y, Iijima H, Naito T, Noguchi E, Hirota T, Tamari M, Konno S, Nishimura M, Hizawa N. Genomewide association study identifies HAS2 as a novel susceptibility gene for adult asthma in a Japanese population. Clin Exp Allergy 2015; 44:1327-34. [PMID: 25251750 DOI: 10.1111/cea.12415] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2014] [Revised: 07/16/2014] [Accepted: 07/21/2014] [Indexed: 01/16/2023]
Abstract
BACKGROUND It is increasingly clear that asthma is not a single disease, but a disorder with vast heterogeneity in pathogenesis, severity, and treatment response. To date, 30 genomewide association studies (GWASs) of asthma have been performed, including by our group. However, most gene variants identified so far confer relatively small increments in risk and explain only a small proportion of familial clustering. OBJECTIVE To identify additional genetic determinants of susceptibility to asthma using a selected Japanese population with reduced tobacco smoking exposure. METHODS We performed a GWAS by genotyping a total of 480 098 single-nucleotide polymorphisms (SNPs) for a Japanese cohort consisting of 734 healthy controls and 240 patients with asthma who had smoked for no more than 10 pack-years. The SNP with the strongest association was genotyped in two other independent Japanese cohorts consisting of a total of 531 healthy controls and 418 patients with asthma who had smoked for no more than 10 pack-years. For the hyaluronan synthase 2 (HAS2) gene, we investigated SNP-gene associations using an expression quantitative trait loci (eQTL) database and also analysed its gene expression profiles in 13 different normal tissues. RESULTS In the discovery GWAS, a SNP located upstream of HAS2, rs7846389, showed the strongest statistical significance (P = 1.43 × 10(-7) ). In the two independent replication cohorts, rs7846389 was consistently associated with asthma (nominal P = 0.0152 and 0.0478 in the first and second replication cohorts, respectively). In the meta-analysis, association of rs7846389 with susceptibility to asthma reached the level of genomewide significance (P = 7.92 × 10(-9) ). This variant was strongly correlated with HAS2 mRNA expression. The strongest expression of the gene was detected in the lung. CONCLUSIONS Our study identified HAS2 as a novel candidate gene for susceptibility to adult asthma.
Collapse
Affiliation(s)
- Y Yatagai
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
13
|
Krupkova O, Sekiguchi M, Klasen J, Hausmann O, Konno S, Ferguson SJ, Wuertz-Kozak K. Epigallocatechin 3-gallate suppresses interleukin-1β-induced inflammatory responses in intervertebral disc cells in vitro and reduces radiculopathic pain in rats. Eur Cell Mater 2014; 28:372-86. [PMID: 25422948 DOI: 10.22203/ecm.v028a26] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Intervertebral disc (IVD) disease, which is characterised by age-related changes in the adult disc, is the most common cause of disc failure and low back pain. The purpose of this study was to analyse the potential of the biologically active polyphenol epigallocatechin 3-gallate (EGCG) for the treatment of painful IVD disease by identifying and explaining its anti-inflammatory and anti-catabolic activity. Human IVD cells were isolated from patients undergoing surgery due to degenerative disc disease (n = 34) and cultured in 2D or 3D. An inflammatory response was activated by IL-1β, EGCG was added, and the expression/activity of inflammatory mediators and pathways was measured by qRT-PCR, western blotting, ELISA, immunofluorescence and transcription factor assay. The small molecule inhibitor SB203580 was used to investigate the involvement of the p38 pathway in the observed effects. The analgesic properties of EGCG were analysed by the von Frey filament test in Sprague-Dawley rats (n = 60). EGCG significantly inhibited the expression of pro-inflammatory mediators and matrix metalloproteinases in vitro, as well as radiculopathic pain in vivo, most probably by modulation of the activity of IRAK-1 and its downstream effectors p38, JNK and NF-κB.
Collapse
Affiliation(s)
- O Krupkova
- Institute for Biomechanics (D-HEST), ETH Zurich, Hönggerbergring 64, HPP O13, 8093 Zurich,
| | | | | | | | | | | | | |
Collapse
|
14
|
Murai H, Utsugisawa K, Suzuki S, Imai T, Nagane Y, Masuda M, Konno S, Suzuki Y, Nakane S, Kira JI. The importance of follow-up thoracic imaging in myasthenia gravis patients. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.1538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
15
|
Mayama C, Saito H, Hirasawa H, Konno S, Tomidokoro A, Araie M, Iwase A, Ohkubo S, Sugiyama K, Otani T, Kishi S, Matsushita K, Maeda N, Hangai M, Yoshimura N. Circle- and Grid-Wise Analyses of Peripapillary Nerve Fiber Layers by Spectral Domain Optical Coherence Tomography in Early-Stage Glaucoma. ACTA ACUST UNITED AC 2013; 54:4519-26. [DOI: 10.1167/iovs.13-11603] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Chihiro Mayama
- Department of Ophthalmology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Hitomi Saito
- Department of Ophthalmology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Hiroyo Hirasawa
- Department of Ophthalmology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Shinsuke Konno
- Department of Ophthalmology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Atsuo Tomidokoro
- Department of Ophthalmology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Makoto Araie
- Department of Ophthalmology, University of Tokyo Graduate School of Medicine, Tokyo, Japan 2Kanto Central Hospital, Tokyo, Japan
| | | | - Shinji Ohkubo
- Department of Ophthalmology and Visual Science, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - Kazuhisa Sugiyama
- Department of Ophthalmology and Visual Science, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - Tomohiro Otani
- Department of Ophthalmology, Gunma University School of Medicine, Maebashi, Japan
| | - Shoji Kishi
- Department of Ophthalmology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Kenji Matsushita
- Department of Ophthalmology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Naoyuki Maeda
- Department of Ophthalmology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Masanori Hangai
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Nagahisa Yoshimura
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| |
Collapse
|
16
|
Shimizu K, Konno S, Ozaki M, Umezawa K, Yamashita K, Todo S, Nishimura M. Dehydroxymethylepoxyquinomicin (DHMEQ), a novel NF-kappaB inhibitor, inhibits allergic inflammation and airway remodelling in murine models of asthma. Clin Exp Allergy 2012; 42:1273-81. [PMID: 22805475 DOI: 10.1111/j.1365-2222.2012.04007.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Dehydroxymethylepoxyquinomicin (DHMEQ) is a newly developed compound that inhibits nuclear factor κB activation and is reported to ameliorate animal models of various inflammatory diseases without significant adverse effects. Because nuclear factor κB is a transcription factor that plays a critical role in the pathophysiology of asthma, DHMEQ may be of therapeutic benefit in asthma. OBJECTIVE The purpose of this study was to evaluate the effects of DHMEQ on airway inflammation and remodelling in murine models of asthma. METHODS The BALB/c mice were sensitized and then challenged acutely or chronically with ovalbumin and administered DHMEQ intraperitoneally before each challenge. Inflammation of airways, lung histopathology and airway hyper responsiveness to methacholine challenge were evaluated. In addition, the effect of DHMEQ on production of cytokines and eotaxin-1 by murine splenocytes, human peripheral blood mononuclear cells and bronchial epithelial cells was investigated. RESULTS Airway hyper responsiveness was ameliorated in both acutely and chronically challenged models by treatment with DHMEQ. DHMEQ significantly reduced eosinophilic airway inflammation and levels of Th2 cytokines in bronchoalveolar lavage fluid in the acute model. It also inhibited parameters of airway remodelling including mucus production, peribronchial fibrosis and the expression of α-smooth muscle actin. Moreover, the production of Th2 cytokines from murine splenocytes and human peripheral blood mononuclear cells and the production of eotaxin-1 by bronchial epithelial cells were inhibited by DHMEQ. CONCLUSIONS AND CLINICAL RELEVANCE These results indicate that DHMEQ inhibits allergic airway inflammation and airway remodelling in murine models of asthma. DHMEQ may have therapeutic potential in the treatment of asthma.
Collapse
Affiliation(s)
- K Shimizu
- First Department of Medicine, Hokkaido University School of Medicine, Kita-ku, Sapporo, Japan
| | | | | | | | | | | | | |
Collapse
|
17
|
Sato K, Hayashino Y, Yamazaki S, Takegami M, Ono R, Otani K, Konno S, Kikuchi S, Fukuhara S. Headache prevalence and long working hours: the role of physical inactivity. Public Health 2012; 126:587-93. [PMID: 22721815 DOI: 10.1016/j.puhe.2012.02.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2010] [Revised: 12/06/2011] [Accepted: 02/28/2012] [Indexed: 11/18/2022]
Abstract
OBJECTIVES Headaches and long working hours are important issues for workers. This study investigated the association between hours worked and the prevalence of headaches, and how that association varies with physical activity. STUDY DESIGN Cross-sectional study with two-stage cluster sampling. METHODS Using data from a nationally representative sample of households in Japan, people aged 20-65 years who worked ≥35 h/week were studied, and the cross-sectional association between the number of hours worked per week (35-45, 46-55 and >55 h/week) and the prevalence rates of headaches of different severity was evaluated. RESULTS Of 721 workers, 307 reported experiencing at least one headache per month. Compared with working 35-45 h/week, the prevalence ratios of severe or disabling headaches among individuals working >55 h/week were 1.38 [95% confidence interval (CI) 1.06-1.78] and 1.63 (95% CI 1.09-2.43), respectively. After stratification by the level of physical activity, the prevalence ratios were greater in the low-physical-activity group: 1.56 (95% CI 1.11-2.19) for severe headaches and 2.20 (95% CI 1.31-3.68) for disabling headaches. The number of hours worked was not associated with headaches in the high-physical-activity group. CONCLUSIONS Among workers in the general population, long working hours were associated with the prevalence of headaches, and the association may depend on a lack of physical activity.
Collapse
Affiliation(s)
- K Sato
- Department of Healthcare Epidemiology, Kyoto University School of Medicine and Public Health, Yoshida Konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | | | | | | | | | | | | | | | | |
Collapse
|
18
|
Konno S, Miyamoto M, Gembun Y, Aoki T, Ito H, Takai S. 103. Tibial somatosensory evoked potentials are useful as a functional examination for the diagnosis of lumbar spinal canal stenosis. Clin Neurophysiol 2012. [DOI: 10.1016/j.clinph.2011.11.185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
19
|
Konno S, Hizawa N, Fukutomi Y, Taniguchi M, Kawagishi Y, Okada C, Tanimoto Y, Takahashi K, Akasawa A, Akiyama K, Nishimura M. The prevalence of rhinitis and its association with smoking and obesity in a nationwide survey of Japanese adults. Allergy 2012; 67:653-60. [PMID: 22335609 DOI: 10.1111/j.1398-9995.2012.02793.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/04/2012] [Indexed: 02/01/2023]
Abstract
BACKGROUND Rhinitis is a common disease, and its prevalence is increasing worldwide. Several studies have provided evidence of a strong association between asthma and rhinitis. Although smoking and obesity have been extensively analyzed as risk factors of asthma, associations with rhinitis are less clear. OBJECTIVE The aims of our study were (i) to evaluate the prevalence of rhinitis using the European Community Respiratory Health Survey (ECRHS) questionnaire in Japanese adults and (ii) to evaluate the associations of smoking and body mass index (BMI) with rhinitis. METHODS Following our study conducted in 2006-2007 to determine the prevalence of asthma using the ECRHS questionnaire, our present analysis evaluates the prevalence of rhinitis and its association with smoking and BMI in Japanese adults 20-79 years of age (N = 22819). We classified the subjects (20-44 or 45-79 years) into four groups as having (i) neither rhinitis nor asthma; (ii) rhinitis without asthma; (iii) asthma without rhinitis; or (iv) rhinitis with asthma. We then evaluated associations with smoking and BMI in each group. RESULTS The overall age-adjusted prevalence of rhinitis was 35.1% in men and 39.3% in women. A higher prevalence was observed in the younger population than in the older population. Active smoking and obesity were positively associated with asthma without rhinitis. In contrast, particularly in the 20- to 44-year age-group, active smoking and obesity were negatively associated with rhinitis without asthma. CONCLUSION The results of the present study suggest that smoking and obesity may have different effects on the development of rhinitis and asthma.
Collapse
Affiliation(s)
- S. Konno
- First Department of Medicine; School of Medicine; Hokkaido University; Hokkaido; Japan
| | - N. Hizawa
- Department of Pulmonary Medicine; Institute of Clinical Medicine; University of Tsukuba; Tsukuba; Japan
| | | | - M. Taniguchi
- Clinical Research Center for Allergy and Rheumatology; Sagamihara National Hospital; Kanagawa; Japan
| | - Y. Kawagishi
- Department of Internal Medicine; Kurobe City Hospital; Toyama; Japan
| | | | - Y. Tanimoto
- Department of Hematology, Oncology, Allergy and Respiratory Medicine; Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; Okayama; Japan
| | - K. Takahashi
- National Hospital Organization; Minami-Okayama Medical Center; Okayama; Japan
| | - A. Akasawa
- Department of Allergy; Tokyo Metropolitan Children's Medical Center; Tokyo; Japan
| | - K. Akiyama
- Clinical Research Center for Allergy and Rheumatology; Sagamihara National Hospital; Kanagawa; Japan
| | - M. Nishimura
- First Department of Medicine; School of Medicine; Hokkaido University; Hokkaido; Japan
| |
Collapse
|
20
|
Hayashi K, Tomidokoro A, Lee KYC, Konno S, Saito H, Mayama C, Aihara M, Iwase A, Araie M. Spectral-Domain Optical Coherence Tomography ofβ-zone Peripapillary Atrophy: Influence of Myopiaand Glaucoma. ACTA ACUST UNITED AC 2012; 53:1499-505. [DOI: 10.1167/iovs.11-8572] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Keiko Hayashi
- From the Department of Ophthalmology, University of Tokyo Graduate School of Medicine, Tokyo, Japan; the 2Tokyo Metropolitan Bokutoh Hospital, Tokyo, Japan
| | | | | | | | - Hitomi Saito
- the Kanto Central Hospital of the Mutual Aid Association of Public School Teachers, Tokyo, Japan, and
| | - Chihiro Mayama
- From the Department of Ophthalmology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Makoto Aihara
- From the Department of Ophthalmology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Aiko Iwase
- the Tajimi Iwase Eye Hospital, Tajimi, Japan
| | - Makoto Araie
- the Kanto Central Hospital of the Mutual Aid Association of Public School Teachers, Tokyo, Japan, and
| |
Collapse
|
21
|
Abstract
Osteopontin (OPN) is an extracellular matrix protein and immune modulator with a wide range of functions. OPN is recognized as a key cytokine in Th1 immune responses, yet its potential involvement in allergic/asthmatic responses has been investigated only recently. Current data from molecular and cellular studies and studies of OPN-deficient mice provide evidence that OPN plays multiple roles in the regulation of allergic responses, including regulation of IgE response, inflammatory cell migration, and the development of airway fibrosis and angiogenesis. These results suggest that OPN is a pleiotropic cytokine that functions both systemically and locally in tissue mucosa. Notably, OPN is able to exert its effects through different functional domains, and the secreted and intracellular forms of OPN may have distinct functions. Future research to elucidate all aspects of OPN function is needed to ultimately establish its role in the regulation of immune responses and various disease processes, including those critically involved in the development of allergies and asthma.
Collapse
Affiliation(s)
- S Konno
- First Department of Medicine, Hokkaido University School of Medicine, Sapporo, Japan.
| | | | | | | | | |
Collapse
|
22
|
Konno S, Aoki T, Miyamoto M, Gembun Y, HoriguchI G, Yoshizawa T, Ito H. P3-17 The effects on the reliability of reading parameters of F-waves by flattening the baselines of the waveforms using a mathematical approximation. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)60485-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
23
|
Hayashi K, Tomidokoro A, Konno S, Mayama C, Aihara M, Araie M. Evaluation of optic nerve head configurations of superior segmental optic hypoplasia by spectral-domain optical coherence tomography. Br J Ophthalmol 2010; 94:768-72. [PMID: 20508053 DOI: 10.1136/bjo.2009.168690] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
AIMS To characterise the optic nerve head (ONH) configurations of superior segmental optic hypoplasia (SSOH) using a spectral-domain optical coherence tomography (SD-OCT). METHODS Horizontal cross-sectional images of the ONH were obtained by a SD-OCT in 20 eyes of 14 patients with clinically typical SSOH and 20 age- and refraction-matched normal eyes. RESULTS Extension of retinal pigment epithelium (RPE) over the disc margin was observed in 20 eyes (100%) with SSOH and eight (40%) control eyes (p<0.001). The maximum length of the overhanging RPE measured at the nasal disc margin was significantly longer in eyes with SSOH than in controls (295.9+/-112.6 vs 24.3+/-33.9 microm; p<0.0001). In eyes with SSOH, the retinal nerve fibre layer (RNFL) was significantly thinner in the temporal-superior to nasal sectors (p<0.01). CONCLUSIONS The extension of RPE over the nasal disc margin was more common and longer in eyes with SSOH than in normal eyes, suggesting that the SD-OCT findings might facilitate the diagnosis of SSOH. Substantial thinning of the RNFL was present in wider areas than previously expected in SSOH.
Collapse
Affiliation(s)
- Keiko Hayashi
- Department of Ophthalmology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | | | | | | | | | | |
Collapse
|
24
|
Hakozaki M, Otani K, Kikuchi S, Konno S. Chance fracture of the lumbar spine in an amateur snowboarder: a case report. J Sports Med Phys Fitness 2010; 50:214-216. [PMID: 20585301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
"Chance fracture" is an unusual type of spinal fracture caused by flexion-distraction of the back. We describe herein a rare case of a male amateur snowboarder who suffered lumbar Chance fracture caused by a fall after freestyle jumping. Radiological findings of plain radiography, computed tomography (CT), and magnetic resonance imaging (MRI) showed a loss of vertebral height in the anterior L1 vertebral body with a horizontal splitting fracture extending across the vertebral body, bilateral pedicles, and lamina. On the basis of the aforementioned findings, the diagnosis of Chance fracture of the L1 vertebra was established. The fracture healed without any subsequent disabilities following conservative medical management with a thoracolumbar orthosis, and no impairments to activities of daily living were encountered, including job or sports performance. Although Chance fracture caused by a fall is rare, particularly in sports, the possibility of this fracture should be considered when diagnosing spinal injuries in snowboarders.
Collapse
Affiliation(s)
- M Hakozaki
- Department of Orthopaedic Surgery, Fukushima Prefectural Minami-Aizu Hospital, Fukushima, Japan.
| | | | | | | |
Collapse
|
25
|
Lee KYC, Tomidokoro A, Sakata R, Konno S, Mayama C, Saito H, Hayashi K, Iwase A, Araie M. Cross-sectional Anatomic Configurations of Peripapillary Atrophy Evaluated with Spectral Domain-Optical Coherence Tomography. ACTA ACUST UNITED AC 2010; 51:666-71. [DOI: 10.1167/iovs.09-3663] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Kelvin Yoon Chiang Lee
- From the Department of Ophthalmology, University of Tokyo, Graduate School of Medicine, Tokyo, Japan; 2the Singapore National Eye Centre, Singapore; and
| | - Atsuo Tomidokoro
- From the Department of Ophthalmology, University of Tokyo, Graduate School of Medicine, Tokyo, Japan
| | - Rei Sakata
- From the Department of Ophthalmology, University of Tokyo, Graduate School of Medicine, Tokyo, Japan
| | - Shinsuke Konno
- From the Department of Ophthalmology, University of Tokyo, Graduate School of Medicine, Tokyo, Japan
| | - Chihiro Mayama
- From the Department of Ophthalmology, University of Tokyo, Graduate School of Medicine, Tokyo, Japan
| | - Hitomi Saito
- From the Department of Ophthalmology, University of Tokyo, Graduate School of Medicine, Tokyo, Japan; 3the Department of Ophthalmology, Tajimi Municipal Hospital, Gifu Prefecture, Japan
| | - Keiko Hayashi
- From the Department of Ophthalmology, University of Tokyo, Graduate School of Medicine, Tokyo, Japan
| | - Aiko Iwase
- the Department of Ophthalmology, Tajimi Municipal Hospital, Gifu Prefecture, Japan
| | - Makoto Araie
- From the Department of Ophthalmology, University of Tokyo, Graduate School of Medicine, Tokyo, Japan
| |
Collapse
|
26
|
Watanabe M, Shiraishi Y, Takayama S, Seki T, Sugita N, Konno S, Yaegashi N, Saijo Y, Yambe T, Yoshizawa M, Nitta S. Hemodynamics of the radial artery, the site of traditional pulse diagnosis. Eur J Integr Med 2009. [DOI: 10.1016/j.eujim.2009.08.086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
27
|
Takayama S, Seki T, Watanabe M, Takashima S, Sugita N, Konno S, Takeda T, Yaegashi N, Yambe T, Yoshizawa M, Maruyama S, Nitta SI, Takayama S. Changes of blood flow volume in the superior mesenteric artery and brachial artery with abdominal thermal stimulation. Eur J Integr Med 2009. [DOI: 10.1016/j.eujim.2009.08.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
28
|
Seki T, Watanabe M, Takayama S, Konno S, Yambe T, Yaegashi N, Nitta SI. Effect of acupuncture on cardiac output. Eur J Integr Med 2009. [DOI: 10.1016/j.eujim.2009.08.085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
29
|
Sasaki N, Konno S, Olmarker K. 395 SIMILAR NERVE INJURY MODELS MAY DISPLAY DIFFERENT BEHAVIORAL CHANGES IN RATS. Eur J Pain 2009. [DOI: 10.1016/s1090-3801(09)60398-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- N. Sasaki
- Orthopaedic Surgery, Minamisouma City General Hospital, Minamisouma, Japan
| | - S. Konno
- Department Orthopaedic Surgery, Fukushima Medical University, School of Medicine, Fukushima, Japan
| | - K. Olmarker
- Department of Medical chemistry and Cellbiology, Inst Biomedicine, University of Gothenburg, Gothenburg, Sweden
| |
Collapse
|
30
|
Saito M, Ishikawa K, Konno S, Taniguchi K, Arima T. Periodic rotation of magnetization in a non-centrosymmetric soft magnet induced by an electric field. Nat Mater 2009; 8:634-638. [PMID: 19561597 DOI: 10.1038/nmat2492] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2009] [Accepted: 05/29/2009] [Indexed: 05/28/2023]
Abstract
The control of magnetism with an electric field is a challenging area with the potential to affect fields related to magnetic data storage, sensors and magnetic random access memory. Although there are some successful examples of such control based on the use of magnetic metals and semiconductors, energy loss caused by current flow is a problem that needs to be addressed. In particular, the repeatable control of magnetization with an electric field can be disturbed by joule heat loss. In this regard, non-centrosymmetric insulating magnets are good candidates for controlling magnetization without energy loss, in which the linear magnetoelectric effect has an essential role. Moreover, such magnets exhibit an unconventional magneto-optical effect, which allows the time-resolved detection of the magnetization direction. Here, we show a periodic oscillation of the magnetization direction by +/-20 degrees in a non-centrosymmetric soft magnet (Cu,Ni)B(2)O(4), which is induced by an a.c. electric field of 2 kHz. The present study provides a strategy for identifying materials in which the magnetization direction can be modulated at high speed with an electric field.
Collapse
Affiliation(s)
- M Saito
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
| | | | | | | | | |
Collapse
|
31
|
Takahashi A, Kurokawa M, Konno S, Ito K, Kon S, Ashino S, Nishimura T, Uede T, Hizawa N, Huang SK, Nishimura M. Osteopontin is involved in migration of eosinophils in asthma. Clin Exp Allergy 2009; 39:1152-9. [PMID: 19400906 DOI: 10.1111/j.1365-2222.2009.03249.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND Osteopontin (OPN) is an extracellular matrix protein with a wide range of functions, and is involved in various inflammatory diseases. However, the role of OPN in eosinophilic airway inflammation is unclear. OBJECTIVE To elucidate the role of OPN in eosinophilic airway inflammation. METHODS OPN protein levels in induced sputum from asthmatic patients and healthy controls were measured. Eosinophil migration assays were performed in the presence or absence of OPN, a blocking antibody (Ab) recognizing its integrin-binding domain (2K1) and an anti-integrin alpha 4 Ab (P1H4). In the mouse asthma model, the levels of eosinophilia were examined in bronchoalveolar lavage fluids (BALFs) from ovalbumin (OVA)-sensitized and -challenged mice with or without administration of an Ab (M5) corresponding to human 2K1. RESULTS Levels of OPN in induced sputum were significantly higher in asthmatic patients when compared with healthy controls. In addition, levels of OPN were correlated with the percentage of sputum eosinophils. OPN induced significant migration of human eosinophils and this effect was inhibited by 2K1 and P1H4. M5 significantly attenuated OVA-induced eosinophilia in BALFs. CONCLUSION These results indicate that OPN plays a role in the migration of eosinophils into the airways and may be involved in the pathogenesis of asthma.
Collapse
Affiliation(s)
- A Takahashi
- First Department of Medicine, Hokkaido University School of Medicine, Sapporo, Hokkaido, Japan
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Shiraishi Y, Yambe T, Saijo Y, Sato F, Tanaka A, Yoshizawa M, Sugai TK, Sakata R, Luo Y, Park Y, Uematsu M, Umezu M, Fujimoto T, Masumoto N, Liu H, Baba A, Konno S, Nitta S, Imachi K, Tabayashi K, Sasada H, Homma D. Sensorless control for a sophisticated artificial myocardial contraction by using shape memory alloy fibre. Annu Int Conf IEEE Eng Med Biol Soc 2009; 2008:711-4. [PMID: 19162754 DOI: 10.1109/iembs.2008.4649251] [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] [Indexed: 11/09/2022]
Abstract
The authors have been developing an artificial myocardium, which is capable of supporting natural contractile function from the outside of the ventricle. The system was originally designed by using sophisticated covalent shape memory alloy fibres, and the surface did not implicate blood compatibility. The purpose of our study on the development of artificial myocardium was to achieve the assistance of myocardial functional reproduction by the integrative small mechanical elements without sensors, so that the effective circulatory support could be accomplished. In this study, the authors fabricated the prototype artificial myocardial assist unit composed of the sophisticated shape memory alloy fibre (Biometal), the diameter of which was 100 microns, and examined the mechanical response by using pulse width modulation (PWM) control method in each unit. Prior to the evaluation of dynamic characteristics, the relationship between strain and electric resistance and also the initial response of each unit were obtained. The component for the PWM control was designed in order to regulate the myocardial contractile function, which consisted of an originally-designed RISC microcomputer with the input of displacement, and its output signal was controlled by pulse wave modulation method. As a result, the optimal PWM parameters were confirmed and the fibrous displacement was successfully regulated under the different heat transfer conditions simulating internal body temperature as well as bias tensile loading. Then it was indicated that this control theory might be applied for more sophisticated ventricular passive or active restraint by the artificial myocardium on physiological demand.
Collapse
Affiliation(s)
- Y Shiraishi
- Institute of Development, Aging and Cancer, Graduate School of Biomedical Engineering, Tohoku University, Sendai 980-8575, Japan.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
33
|
|
34
|
Shiraishi Y, Yambe T, Saijo Y, Sato F, Tanaka A, Yoshizawa M, Sugai TK, Kaneko Y, Sato Y, Uematsu M, Umezu M, Fujimoto T, Masumoto N, Liu H, Baba A, Konno S, Tabayashi K, Sasada H, Homma D. Assessment of synchronization measures for effective ventricular support by using the shape memory alloy fibred artificial myocardium in goats. Annu Int Conf IEEE Eng Med Biol Soc 2009; 2009:3047-3050. [PMID: 19964283 DOI: 10.1109/iembs.2009.5333627] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Thromboembolic and haemorrhagic complications are the primary causes of mortality and morbidity in patients with artificial hearts, which are known to be induced by the interactions between blood flow and artificial material surfaces. The authors have been developing a new mechanical artificial myocardial assist device by using a sophisticated shape memory alloy fibre in order to achieve the mechanical cardiac support from outside of the heart without a direct blood contacting surface. The original material employed as the actuator of artificial myocardial assist devices was 100um fibred-shaped, which was composed of covalent and metallic bonding structure and designed to generate 4-7 % shortening by Joule heating induced by the electric current input. In this study, we focused on the synchronization of the actuator with native cardiac function, and the phase delay parameter was examined in animal experiments using Saanen goats. Total weight of the device including the actuator was around 150g, and the electric power was supplied transcutaneously. The device could be successfully installed into thoracic cavity, which was able to be girdling the left ventricle. The contraction of the device could be controlled by the originally designed microcomputer. The mechanical contraction signal input had been transmitted with the phase delay of 50-200 msec after the R-wave of ECG, and hemodynamic changes were investigated. Cardiac output and systolic left ventricular pressure were elevated with 20% delay of cardiac cycle by 27% and 7%, respectively, although there was smaller difference under the condition of the delay of over 30%. Therefore, it was suggested that the synchronization measures should be examined in order to achieve sophisticated ventricular passive/active support on physiological demand.
Collapse
Affiliation(s)
- Y Shiraishi
- Institute of Development, Aging and Cancer, Tohoku University, Sendai 980-8575, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
35
|
Hizawa N, Makita H, Nasuhara Y, Hasegawa M, Nagai K, Ito Y, Betsuyaku T, Konno S, Nishimura M. Functional single nucleotide polymorphisms of the CCL5 gene and nonemphysematous phenotype in COPD patients. Eur Respir J 2008; 32:372-8. [PMID: 18385174 DOI: 10.1183/09031936.00115307] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
It was previously reported that the gain-of-function -28 guanine allele of the promoter single nucleotide polymorphism (SNP; cytosine to guanine substitution of nucleotide -28 (-28C>G)) in the CC chemokine ligand 5 gene (CCL5) was associated with susceptibility to late-onset asthma in patients who developed asthma at age > or =40 yrs. The clinical diagnosis of chronic obstructive pulmonary disease (COPD) includes emphysema and small airway disease, and upregulation of CCL5 has been described in the airways of patients with COPD. It was hypothesised that CCL5 has a genetic impact upon the variable expression of emphysema in patients with COPD. Patients with COPD were studied (n = 267). All of the patients underwent pulmonary high-resolution computed tomography (CT), and visual scoring (CT score) was performed to determine emphysema severity. Three SNPs of CCL5 were genotyped, including -403G>A, -28C>G and 375T>C. A significant difference was found in CT score according to CCL5 genotype; the -28G allele was inversely associated with CT score. When the analysis was confined to 180 patients with bronchial reversibility of <15%, even stronger evidence for this association was noted. Functional single nucleotide polymorphisms in the CC chemokine ligand 5 gene were associated with milder emphysema. Together with previous findings, the present study may identify the CC chemokine ligand 5 gene as part of a common pathway in the pathogenesis of late-onset asthma and chronic obstructive pulmonary disease with milder emphysema.
Collapse
Affiliation(s)
- N Hizawa
- First Dept of Medicine, Hokkaido University School of Medicine, N-15 W-7, Kita-Ku, Sapporo 060-8638, Japan
| | | | | | | | | | | | | | | | | | | |
Collapse
|
36
|
Pyo P, Hoffman M, Grewall P, Tazaki H, Choudhury M, Konno S. POS-02.17: Potent effects of two distinct mushroom extracts on growth of bladder cancer cells. Urology 2007. [DOI: 10.1016/j.urology.2007.06.757] [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]
|
37
|
Shiraishi Y, Yambe T, Saijo Y, Sato F, Tanaka A, Yoshizawa M, Ogawa D, Wada Y, Itoh S, Sakata R, Park Y, Uematsu M, Umezu M, Fujimoto T, Masumoto N, Liu H, Baba A, Konno S, Nitta S, Imachi K, Tabayashi K, Sasada H, Homma D. Morphological Approach for the Functional Improvement of an Artificial Myocardial Assist Device using Shape Memory Alloy Fibres. ACTA ACUST UNITED AC 2007; 2007:3974-7. [DOI: 10.1109/iembs.2007.4353204] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
38
|
Hakozaki M, Iwabuchi M, Otani K, Konno S, Kikuchi S. Unusual fracture of the humerus in a volleyball player: a case report. Int J Sports Med 2007; 28:977-9. [PMID: 17497590 DOI: 10.1055/s-2007-965065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
We describe a case of a female high school volleyball player who suffered a humeral shaft fracture while executing a floater serve. Based on the patient's history, a stress fracture was initially suspected. However, plain radiographs showed no periosteal reactions, callus formation or osteosclerosis, and thus we could not make a definite diagnosis of "stress fracture". It is suggested that an instantaneous muscle force in addition to rotational forces applied by impact with the ball caused the fracture. Her fracture healed without any subsequent disabilities based on a conservative medical management with a plaster splint, and she returned to the volleyball team. The inaccuracy of her serve form in addition to her own muscular force might be involved in the mechanism of injury. Instruction on achieving appropriate serve form might help prevent such fractures.
Collapse
Affiliation(s)
- M Hakozaki
- Department of Orthopaedic Surgery, Fukushima Medical University School of Medicine, Fukushima, Japan.
| | | | | | | | | |
Collapse
|
39
|
Yamanaka H, Konno S, Sato T, Kaneko K. Relative concentrations of progesterone and estradiol-17beta in blood serum, whole milk, skimmed milk and milk whey of Holstein cows. Vet Rec 2007; 160:339-40. [PMID: 17351177 DOI: 10.1136/vr.160.10.339] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- H Yamanaka
- Hokubu Large Animal Clinic, Iburi Agricultural Mutual Relief Association of Hokkaido, 423-133 Toasa, Hayakita-cho, Yufutsu-gun, Hokkaido, 059-1433 Japan
| | | | | | | |
Collapse
|
40
|
Abstract
BACKGROUND We previously detected a promoter polymorphism (- 109C/T) in the gene for the beta-chain of the high-affinity receptor for IgE (FCER1B), which was associated with total serum IgE levels but not with asthma in a Japanese population. A genetic interaction is biologically plausible between FcepsilonRI-beta and the plasminogen activator inhibitor 1 (PAI-1), which is highly expressed in mast cells in asthmatics and plays an essential role in airway remodelling. We hypothesized that FCER1B promoter polymorphisms, by modifying the intensity of mast cell activation signals, modulate the genetic effects of a functional 4G/5G polymorphism in the PAI-1 gene on asthma. OBJECTICIVE: To examine whether FCER1B promoter polymorphisms (- 109C/T and - 654C/T) influence the genetic effects of the functional polymorphism (4G/5G) at the PAI-1 promoter region on asthma susceptibility using a case-control analysis. METHODS Subjects (374 asthmatic patients and 374 non-asthmatic controls) were divided into combined genotype groups based on the presence of FCER1B - 109TT and - 654CC genotypes and the PAI-1 4G allele. Logistic regression analysis was used to estimate adjusted odds ratios for asthma associated with the different genotype groups. RESULTS Individuals homozygous for the FCER1B - 109T/ - 654C haplotype and the PAI - 1 5G allele had a reduced susceptibility to asthma; the odds ratio for the development of asthma was 0.20 (95% confidence interval, 0.084 - 0.46; P = 0.00015) for them, compared with individuals also homozygous for the - 109T/- 654C haplotype at FCER1B but carrying the 4G allele at PAI-1. The regression model also showed an interaction of the PAI-1 4G/5G genotype with the FCER1B-109C/T (P for interaction = 0.0017) or FCER1B-654C/T (P for interaction = 0.031) on asthma. CONCLUSION The present findings suggest a synergistic interaction between FCER1B and PAI-1 genes in asthma susceptibility.
Collapse
Affiliation(s)
- N Hizawa
- First Department of Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Japan.
| | | | | | | | | | | |
Collapse
|
41
|
Shiraishi Y, Yambe T, Sekine K, Saijo Y, Wang Q, Liu H, Nitta S, Konno S, Masumoto N, Nagatoshi J, Itoh S, Park Y, Uematsu M, Umezu M, Ogawa D, Olegario P, Sato F, Yoshizawa M, Tanaka A, Tabayashi K, Sasada H, Fujimoto T, Homma D, Higa M, Hori Y. Development of an Artificial Myocardium using a Covalent Shape-memory Alloy Fiber and its Cardiovascular Diagnostic Response. Conf Proc IEEE Eng Med Biol Soc 2007; 2006:406-8. [PMID: 17282200 DOI: 10.1109/iembs.2005.1616431] [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] [Indexed: 11/09/2022]
Abstract
The authors have been developing a newly-designed totally-implantable artificial myocardium using a covalent shape-memory alloy fibre (Biometal®, Toki Corporation), which is attached onto the ventricular wall and is also capable of supporting the natural ventricular contraction. This mechanical system consists of a contraction assistive device, which is made of Ti-Ni alloy. And the phenomenon of the martensitic transformation of the alloy was employed to achieve the physiologic motion of the device. The diameter of the alloy wire could be selected from 45 to 250μm. In this study, the basic characteristics of the fiber of 150μm was examined to design the sophisticated mechano-electric myocardium. The stress generated by the fiber was 400gf under the pulsatile driving condition (0.4W, 1Hz). Therefore it was indicated that the effective assistance might be achieved by using the Biometal shape-memory alloy fiber.
Collapse
Affiliation(s)
- Y Shiraishi
- Institute of Development, Aging and Cancer, Tohoku University, Sendai 980-8575, Japan (phone: +81 22 717 8517; fax: +81 22 717 8518; e-mail: )
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
42
|
|
43
|
Aoki T, Konno S, Horiguchi G, Yoshizawa T, Ito H. P15.7 Sensory conduction study of carpal tunnel syndrome with inching technique. Clin Neurophysiol 2006. [DOI: 10.1016/j.clinph.2006.06.349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
44
|
Tanino Y, Hizawa N, Konno S, Fukui Y, Takahashi D, Maeda Y, Huang SK, Nishimura M. Sequence variants of the secreted phosphoprotein 1 gene are associated with total serum immunoglobulin E levels in a Japanese population. Clin Exp Allergy 2006; 36:219-25. [PMID: 16433860 DOI: 10.1111/j.1365-2222.2006.02414.x] [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] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Secreted phosphoprotein 1 (SPP1) is a cytokine with pleiotrophic immunological activities, including activation of macrophage chemotaxis and T-helper type 1 (Th1) immune responses. SPP1 gene polymorphisms have been shown to be associated with several immune inflammatory diseases including multiple sclerosis (MS), which is characterized by fewer allergic symptoms and lower numbers of allergen sensitizations. OBJECTIVE The present study examined whether SPP1 gene polymorphisms are associated with total serum IgE levels, atopy and asthma in a Japanese population. METHODS This case-control association analysis examined 611 subjects, including 268 subjects with asthma. We genotyped three promoter and two exon polymorphisms at SPP1: -1687A/G; -381T/C; -94 deletion/G; 5891C/T; and 7052T/C. Results Association analyses of SPP1 polymorphisms showed that homozygosities for the 5891T allele (P=0.009) and 7052C allele (P=0.001) were significantly associated with increased levels of total IgE in non-asthmatic subjects. However, these variants were not associated with asthma and atopy. Interestingly, individuals carrying the 5891C allele, which is more prevalent in patients with MS in Japanese populations, displayed significantly lower levels of total serum IgE. Individuals homozygous for the 7052C allele, which is associated with development of systemic lupus erythematosus, displayed significantly higher total serum IgE levels. CONCLUSION These findings suggest that genetic polymorphisms in SPP1 may play a role in controlling basal levels of total serum IgE, independent of atopy.
Collapse
Affiliation(s)
- Y Tanino
- First Department of Medicine, Hokkaido University School of Medicine, Sapporo, Japan
| | | | | | | | | | | | | | | |
Collapse
|
45
|
|
46
|
Maeda Y, Hizawa N, Jinushi E, Takahashi D, Fukui Y, Konno S, Yamaguchi E, Nishimura M. Polymorphisms in the Cholinergic Receptor, Muscarinic 1 (CHRM1) Gene Confer Susceptibility to Asthma in Japanese. J Allergy Clin Immunol 2006. [DOI: 10.1016/j.jaci.2005.12.790] [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: 11/17/2022]
|
47
|
Konno S, Hizawa N, Eckman J, Plunkett B, Golden D, Schroeder J, Nishimura M, Huang S. Regulation of osteopontin by IL-10 and Th2 cytokines in human monocytes and monocyte-derived dendritic cells. J Allergy Clin Immunol 2006. [DOI: 10.1016/j.jaci.2005.12.1015] [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]
|
48
|
Yambe T, Inoue A, Sekine K, Shiraishi Y, Watanabe M, Yamaguchi T, Shibata M, Maruyama M, Konno S, Nitta S. Effect of the alternative magnetic stimulation on peripheral circulation for regenerative medicine. Biomed Pharmacother 2005; 59 Suppl 1:S174-6. [PMID: 16275489 DOI: 10.1016/s0753-3322(05)80027-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Regenerative medicine for patients with peripheral atherosclerosis attracts considerable attention around the world. However, ethical problems persist in gene therapy. This study evaluates the effect of alterative magnetic stimulation on peripheral circulation. The effect of magnetic stimulation as a medical treatment was examined using a thermograph for 11 healthy volunteers. The thermograph was used to measure the rise in skin temperature. The experimental results suggested an improvement in the peripheral circulation. The results of our study suggest the effectiveness of alternative magnetic stimulation on atherosclerosis. We intend to extend our study in order to establish a methodology for regenerative medical treatment for patients with peripheral atherosclerosis. Further, we wish to advance the current research in the field of angiogenesis.
Collapse
Affiliation(s)
- T Yambe
- Department of Medical Engineering and Cardiology, Institute of Development, Aging and Cancer, Tohoku University, 4-1 Seiryo-machi, Aoba-ku, Sendai 980-77, Japan.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
49
|
Yambe T, Meng X, Hou X, Wang Q, Sekine K, Shiraishi Y, Watanabe M, Yamaguchi T, Shibata M, Kuwayama T, Maruyama M, Konno S, Nitta S. Cardio-ankle vascular index (CAVI) for the monitoring of the atherosclerosis after heart transplantation. Biomed Pharmacother 2005; 59 Suppl 1:S177-9. [PMID: 16275490 DOI: 10.1016/s0753-3322(05)80028-9] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Atherosclerosis has been reported to progress rapidly after heart transplantation. A quantitative diagnosis is required for the diagnosis of atherosclerosis after heart transplantation. In this study, we compared brachial-ankle pulse wave velocity (baPWV) and cardio-ankle vascular index (CAVI) for the diagnosis. The average values of both baPWV and CAVI in the seven cases after heart transplantation were found to be signif-icantly large in comparison to the average values of the normal healthy people of the same age group. When comparisons were made before and after the heart transplantation in a particular case, CAVI was stable and baPWV changed sharply. A lot of parameters such as blood pressure, blood volume, etc. have been reported to influence baPWV. The results of this study suggested that CAVI was a stable parameter in comparison to baPWV even after heart transplantation. Thus, CAVI may be useful in the diagnosis of arteriosclerosis after heart transplantation.
Collapse
Affiliation(s)
- T Yambe
- Department of Medical Engineering and Cardiology, Institute of Development, Aging and Cancer, Tohoku University, 4-1 Seiryo-machi, Aoba-ku, Sendai 980-77, Japan.
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
50
|
Yambe T, Asano E, Mauyama S, Shiraishi Y, Shibata M, Sekine K, Watanabe M, Yamaguchi T, Kuwayama T, Konno S, Nitta S. Chaos analysis of electro encephalography and control of seizure attack of epilepsy patients. Biomed Pharmacother 2005; 59 Suppl 1:S236-8. [PMID: 16275501 DOI: 10.1016/s0753-3322(05)80038-1] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
In order to evaluate the EEG of patients with epilepsy, chaos analysis was performed for the subdural EEG time series data. The chaos attractor was reconstructed in the phase space and the correlation dimension. KS entropy calculated from the Lyapunov exponents was evaluated. Before the seizure attack, the KS entropy showed a lower value when compared with the time series data recorded during healthy condition. The results of our study suggest that it is possible to predict the seizure attack by the chaos analysis of the EEG signal. Further, we aim at developing an automatic control system for predicting a seizure attack by the use of local cooling of the focus with Peltier elements.
Collapse
Affiliation(s)
- T Yambe
- Department of Medical Engineering and Cardiology, Institute of Development, Aging and Cancer, Tohoku University, 4-1 Seiryo-machi, Aoba-ku, Sendai 980-77, Japan.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|