1
|
Suzukawa M, Ohta K, Sugimoto M, Ohshima N, Kobayashi N, Tashimo H, Tanimoto Y, Itano J, Kimura G, Takata S, Nakano T, Yamashita T, Ikegame S, Hyodo K, Abe M, Chibana K, Kamide Y, Sasaki K, Hashimoto H. Identification of exhaled volatile organic compounds that characterize asthma phenotypes: A J-VOCSA study. Allergol Int 2024:S1323-8930(24)00047-9. [PMID: 38658257 DOI: 10.1016/j.alit.2024.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 03/23/2024] [Accepted: 04/03/2024] [Indexed: 04/26/2024] Open
Abstract
BACKGROUND Asthma is characterized by phenotypes of different clinical, demographic, and pathological characteristics. Identifying the profile of exhaled volatile organic compounds (VOCs) in asthma phenotypes may facilitate establishing biomarkers and understanding asthma background pathogenesis. This study aimed to identify exhaled VOCs that characterize severe asthma phenotypes among patients with asthma. METHODS This was a multicenter cross-sectional study of patients with severe asthma in Japan. Clinical data were obtained from medical records, and questionnaires were collected. Exhaled breath was sampled and subjected to thermal desorption gas chromatography-mass spectrometry (GC/MS). RESULTS Using the decision tree established in the previous nationwide asthma cohort study, 245 patients with asthma were divided into five phenotypes and subjected to exhaled VOC analysis with 50 healthy controls (HCs). GC/MS detected 243 VOCs in exhaled breath samples, and 142 frequently detected VOCs (50% of all samples) were used for statistical analyses. Cluster analysis assigning the groups with similar VOC profile patterns showed the highest similarities between phenotypes 3 and 4 (early-onset asthma phenotypes), followed by the similarities between phenotypes 1 and 2 (late-onset asthma phenotypes). Comparisons between phenotypes 1-5 and HC revealed 19 VOCs, in which only methanesulfonic anhydride showed p < 0.05 adjusted by false discovery rate (FDR). Comparison of these phenotypes yielded several VOCs showing different trends (p < 0.05); however, no VOCs showed p < 0.05 adjusted by FDR. CONCLUSIONS Exhaled VOC profiles may be useful for distinguishing asthma and asthma phenotypes; however, these findings need to be validated, and their pathological roles should be clarified.
Collapse
Affiliation(s)
- Maho Suzukawa
- Clinical Research Center, National Hospital Organization Tokyo National Hospital, Tokyo, Japan.
| | - Ken Ohta
- Clinical Research Center, National Hospital Organization Tokyo National Hospital, Tokyo, Japan; Japan Anti-Tuberculosis Association, JATA Fukujuji Hospital, Tokyo, Japan.
| | - Masahiro Sugimoto
- Institute for Advanced Biosciences, Keio University, Yamagata, Japan; Human Metabolome Technologies, Inc., Yamagata, Japan
| | - Nobuharu Ohshima
- Clinical Research Center, National Hospital Organization Tokyo National Hospital, Tokyo, Japan
| | - Nobuyuki Kobayashi
- Clinical Research Center, National Hospital Organization Tokyo National Hospital, Tokyo, Japan
| | - Hiroyuki Tashimo
- Clinical Research Center, National Hospital Organization Tokyo National Hospital, Tokyo, Japan
| | - Yasushi Tanimoto
- National Hospital Organization Minami-Okayama Medical Center, Okayama, Japan
| | - Junko Itano
- National Hospital Organization Minami-Okayama Medical Center, Okayama, Japan
| | - Goro Kimura
- National Hospital Organization Minami-Okayama Medical Center, Okayama, Japan
| | - Shohei Takata
- National Hospital Organization Fukuokahigashi Medical Center, Fukuoka, Japan
| | - Takako Nakano
- National Hospital Organization Fukuokahigashi Medical Center, Fukuoka, Japan
| | - Takafumi Yamashita
- National Hospital Organization Fukuokahigashi Medical Center, Fukuoka, Japan
| | - Satoshi Ikegame
- National Hospital Organization Fukuokahigashi Medical Center, Fukuoka, Japan
| | - Kentaro Hyodo
- National Hospital Organization Ibarakihigashi National Hospital, Ibaraki, Japan
| | - Masahiro Abe
- National Hospital Organization Ehime Medical Center, Ehime, Japan
| | - Kenji Chibana
- National Hospital Organization Okinawa National Hospital, Okinawa, Japan
| | - Yosuke Kamide
- National Hospital Organization Sagamihara National Hospital, Kanagawa, Japan
| | - Kazunori Sasaki
- Institute for Advanced Biosciences, Keio University, Yamagata, Japan; Human Metabolome Technologies, Inc., Yamagata, Japan
| | - Hiroya Hashimoto
- National Hospital Organization Nagoya Medical Center, Nagoya, Japan
| |
Collapse
|
2
|
Kobayashi N, Shimada K, Ishii A, Osaka R, Nishiyama T, Shigeta M, Yanagisawa H, Oka N, Kondo K. Identification of a strong genetic risk factor for major depressive disorder in the human virome. iScience 2024; 27:109203. [PMID: 38414857 PMCID: PMC10897923 DOI: 10.1016/j.isci.2024.109203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 11/07/2023] [Accepted: 02/07/2024] [Indexed: 02/29/2024] Open
Abstract
The heritability of major depressive disorder (MDD) is reportedly 30-50%. However, the genetic basis of its heritability remains unknown. Within SITH-1, a risk factor for MDD in human herpesvirus 6B (HHV-6B), we discovered a gene polymorphism with a large odds ratio for an association with MDD. It was a sequence whose number of repeats was inversely correlated with SITH-1 expression. This number was significantly lower in MDD patients. Rates for 17 or fewer repeats of the sequence were 67.9% for MDD and 28.6% for normal controls, with an odds ratio of 5.28. For patients with 17 or less repeats, the rate for presence of another MDD patient in their families was 47.4%, whereas there were no MDD patients in the families of patients with more than 17 repeats. Since HHV-6B is transmitted primarily mother to child and within families and persists for life, this gene polymorphism could potentially influence heritability of MDD.
Collapse
Affiliation(s)
- Nobuyuki Kobayashi
- Department of Virology, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo 105-8461, Japan
| | - Kazuya Shimada
- Department of Virology, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo 105-8461, Japan
| | - Azusa Ishii
- Department of Virology, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo 105-8461, Japan
| | - Rui Osaka
- Department of Virology, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo 105-8461, Japan
| | - Toshiko Nishiyama
- Department of Public Health & Environmental Medicine, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo 105-8461, Japan
| | - Masahiro Shigeta
- Department of Psychiatry, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo 105-8461, Japan
| | - Hiroyuki Yanagisawa
- Department of Public Health & Environmental Medicine, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo 105-8461, Japan
| | - Naomi Oka
- Department of Virology, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo 105-8461, Japan
| | - Kazuhiro Kondo
- Department of Virology, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo 105-8461, Japan
| |
Collapse
|
3
|
Monteagudo B, Marqués FM, Gibelin J, Orr NA, Corsi A, Kubota Y, Casal J, Gómez-Camacho J, Authelet G, Baba H, Caesar C, Calvet D, Delbart A, Dozono M, Feng J, Flavigny F, Gheller JM, Giganon A, Gillibert A, Hasegawa K, Isobe T, Kanaya Y, Kawakami S, Kim D, Kiyokawa Y, Kobayashi M, Kobayashi N, Kobayashi T, Kondo Y, Korkulu Z, Koyama S, Lapoux V, Maeda Y, Motobayashi T, Miyazaki T, Nakamura T, Nakatsuka N, Nishio Y, Obertelli A, Ohkura A, Ota S, Otsu H, Ozaki T, Panin V, Paschalis S, Pollacco EC, Reichert S, Rousse JY, Saito AT, Sakaguchi S, Sako M, Santamaria C, Sasano M, Sato H, Shikata M, Shimizu Y, Shindo Y, Stuhl L, Sumikama T, Sun YL, Tabata M, Togano Y, Tsubota J, Uesaka T, Yang ZH, Yasuda J, Yoneda K, Zenihiro J. Mass, Spectroscopy, and Two-Neutron Decay of ^{16}Be. Phys Rev Lett 2024; 132:082501. [PMID: 38457706 DOI: 10.1103/physrevlett.132.082501] [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: 09/19/2023] [Revised: 12/18/2023] [Accepted: 01/29/2024] [Indexed: 03/10/2024]
Abstract
The structure and decay of the most neutron-rich beryllium isotope, ^{16}Be, has been investigated following proton knockout from a high-energy ^{17}B beam. Two relatively narrow resonances were observed for the first time, with energies of 0.84(3) and 2.15(5) MeV above the two-neutron decay threshold and widths of 0.32(8) and 0.95(15) MeV, respectively. These were assigned to be the ground (J^{π}=0^{+}) and first excited (2^{+}) state, with E_{x}=1.31(6) MeV. The mass excess of ^{16}Be was thus deduced to be 56.93(13) MeV, some 0.5 MeV more bound than the only previous measurement. Both states were observed to decay by direct two-neutron emission. Calculations incorporating the evolution of the wave function during the decay as a genuine three-body process reproduced the principal characteristics of the neutron-neutron energy spectra for both levels, indicating that the ground state exhibits a strong spatially compact dineutron component, while the 2^{+} level presents a far more diffuse neutron-neutron distribution.
Collapse
Affiliation(s)
- B Monteagudo
- LPC Caen, ENSICAEN, CNRS/IN2P3, Université de Caen, Normandie Université, 14050 Caen, France
- FRIB, Michigan State University, East Lansing, Michigan 48824, USA
| | - F M Marqués
- LPC Caen, ENSICAEN, CNRS/IN2P3, Université de Caen, Normandie Université, 14050 Caen, France
| | - J Gibelin
- LPC Caen, ENSICAEN, CNRS/IN2P3, Université de Caen, Normandie Université, 14050 Caen, France
| | - N A Orr
- LPC Caen, ENSICAEN, CNRS/IN2P3, Université de Caen, Normandie Université, 14050 Caen, France
| | - A Corsi
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - Y Kubota
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- Center for Nuclear Study, University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
- Department of Physics, Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - J Casal
- Dipartimento di Fisica e Astronomia "G. Galilei" and INFN-Sezione di Padova, Via Marzolo 8, 35131 Padova, Italy
- Departamento de Física Atómica, Molecular y Nuclear, Facultad de Física, Universidad de Sevilla, Apartado 1065, E-41080 Sevilla, Spain
| | - J Gómez-Camacho
- Departamento de Física Atómica, Molecular y Nuclear, Facultad de Física, Universidad de Sevilla, Apartado 1065, E-41080 Sevilla, Spain
| | - G Authelet
- Département des Accélérateurs, de Cryogénie et de Magnétisme, IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - H Baba
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - C Caesar
- Department of Physics, Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - D Calvet
- Département d'électronique des Détecteurs et d'Informatique pour la Physique, IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - A Delbart
- Département d'électronique des Détecteurs et d'Informatique pour la Physique, IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - M Dozono
- Center for Nuclear Study, University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
| | - J Feng
- School of Physics, Peking University, Beijing 100871, China
| | - F Flavigny
- Institut de Physique Nucléaire, IN2P3-CNRS, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
| | - J-M Gheller
- Département des Accélérateurs, de Cryogénie et de Magnétisme, IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - A Giganon
- Département d'électronique des Détecteurs et d'Informatique pour la Physique, IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - A Gillibert
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - K Hasegawa
- Department of Physics, Tohoku University, Miyagi 980-8578, Japan
| | - T Isobe
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - Y Kanaya
- Department of Applied Physics, University of Miyazaki, Gakuen-Kibanadai-Nishi 1-1, Miyazaki 889-2192, Japan
| | - S Kawakami
- Department of Applied Physics, University of Miyazaki, Gakuen-Kibanadai-Nishi 1-1, Miyazaki 889-2192, Japan
| | - D Kim
- Department of Physics, Ewha Womans University, Republic of Korea
| | - Y Kiyokawa
- Center for Nuclear Study, University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
| | - M Kobayashi
- Center for Nuclear Study, University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
| | - N Kobayashi
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - T Kobayashi
- Department of Physics, Tohoku University, Miyagi 980-8578, Japan
| | - Y Kondo
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - Z Korkulu
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - S Koyama
- Department of Physics, University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
| | - V Lapoux
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - Y Maeda
- Department of Applied Physics, University of Miyazaki, Gakuen-Kibanadai-Nishi 1-1, Miyazaki 889-2192, Japan
| | - T Motobayashi
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - T Miyazaki
- Department of Physics, University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
| | - T Nakamura
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - N Nakatsuka
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - Y Nishio
- Department of Physics, Kyushu University, Nishi, Fukuoka 819-0367, Japan
| | - A Obertelli
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
- Department of Physics, Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - A Ohkura
- Department of Physics, Kyushu University, Nishi, Fukuoka 819-0367, Japan
| | - S Ota
- Center for Nuclear Study, University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
| | - H Otsu
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - T Ozaki
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - V Panin
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - S Paschalis
- Department of Physics, Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - E C Pollacco
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - S Reichert
- Department of Physics, Technische Universität Munchen, 85748 Garching bei München, Germany
| | - J-Y Rousse
- Département d'Ingénierie des Systèmes, IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - A T Saito
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - S Sakaguchi
- Department of Physics, Kyushu University, Nishi, Fukuoka 819-0367, Japan
| | - M Sako
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - C Santamaria
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - M Sasano
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - H Sato
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - M Shikata
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - Y Shimizu
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - Y Shindo
- Department of Physics, Kyushu University, Nishi, Fukuoka 819-0367, Japan
| | - L Stuhl
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - T Sumikama
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - Y L Sun
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
- Department of Physics, Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - M Tabata
- Department of Physics, Kyushu University, Nishi, Fukuoka 819-0367, Japan
| | - Y Togano
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - J Tsubota
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - T Uesaka
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - Z H Yang
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - J Yasuda
- Department of Physics, Kyushu University, Nishi, Fukuoka 819-0367, Japan
| | - K Yoneda
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - J Zenihiro
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| |
Collapse
|
4
|
Takada K, Suzukawa M, Tashimo H, Ohshima N, Fukutomi Y, Kobayashi N, Taniguchi M, Ishii M, Akishita M, Ohta K. Serum MMP3 and IL1-RA levels may be useful biomarkers for detecting asthma and chronic obstructive pulmonary disease overlap in patients with asthma. World Allergy Organ J 2023; 16:100840. [PMID: 38020287 PMCID: PMC10663683 DOI: 10.1016/j.waojou.2023.100840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 08/16/2023] [Accepted: 10/17/2023] [Indexed: 12/01/2023] Open
Abstract
Background Asthma and chronic obstructive pulmonary disease (COPD) overlap (ACO) is characterized by concurrent features of asthma and COPD. Since disease pathogenesis, severities, and treatments differ between asthma and ACO, it is important to differentiate them. Objective To clarify and compare the characteristics of ACO and asthma and identify the serum biomarkers for differentiating them, especially in older patients. Methods This study used the data of 639 participants from the nationwide cohort study, the NHOM-Asthma study, an asthma registry in Japan, with complete information on smoking history, respiratory function, and serum biomarkers. ACO was defined as the self-reported comorbidity of COPD or emphysema, or with obstructive pulmonary function and smoking history (pack-years≥10). The clinical characteristics of patients with ACO and asthma without COPD were compared. The serum biomarkers for differentiation were examined using receiver operating characteristic curves and multivariable analysis. The associations between the biomarkers and age were also analyzed. Results Of the 639 asthma patients, 125 (19.6%) were diagnosed with ACO; these patients were older and male-dominant and had a higher prevalence of comorbidities such as hypertension, diabetes, and stroke. Among the serum biomarkers that were significantly different between ACO and asthma without COPD, the YKL-40/CHI3L1, MMP3, and IL-1RA levels showed a high area under the curve for discriminating ACO. Only the MMP3 and IL-1RA levels were significantly higher among ACO patients, regardless of age and sex; the YKL-40/CHI3L1 levels were not different due to the effect of age. Conclusion MMP3 and IL-1RA may be useful serum biomarkers for distinguishing ACO from asthma.
Collapse
Affiliation(s)
- Kazufumi Takada
- Clinical Research Center, National Hospital Organization Tokyo National Hospital, Tokyo, 204-8585, Japan
- Department of Geriatric Medicine, Graduate School of Medicine, University of Tokyo, Tokyo, 113-8655, Japan
| | - Maho Suzukawa
- Clinical Research Center, National Hospital Organization Tokyo National Hospital, Tokyo, 204-8585, Japan
| | - Hiroyuki Tashimo
- Asthma, Allergy and Rheumatology Center, National Hospital Organization Tokyo National Hospital, Tokyo, 204-8585, Japan
| | - Nobuharu Ohshima
- Department of Respiratory Medicine, National Hospital Organization Tokyo National Hospital, Tokyo, 204-8585, Japan
| | - Yuma Fukutomi
- Clinical Research Center, National Hospital Organization Sagamihara National Hospital, Kanagawa, 252-0392, Japan
| | | | - Masami Taniguchi
- Clinical Research Center, National Hospital Organization Sagamihara National Hospital, Kanagawa, 252-0392, Japan
- Shonan Kamakura General Hospital, Kanagawa, 247-8533, Japan
| | - Masaki Ishii
- Department of Geriatric Medicine, Graduate School of Medicine, University of Tokyo, Tokyo, 113-8655, Japan
| | - Masahiro Akishita
- Department of Geriatric Medicine, Graduate School of Medicine, University of Tokyo, Tokyo, 113-8655, Japan
| | - Ken Ohta
- Clinical Research Center, National Hospital Organization Tokyo National Hospital, Tokyo, 204-8585, Japan
- Japan Anti-Tuberculosis Association, JATA Fukujuji Hospital, Tokyo, 204-8522, Japan
| |
Collapse
|
5
|
Matsumoto S, Otaki Y, Yoshida Y, Kobayashi N, Oka N, Yanagisawa H, Kondo K. Relationship between human herpesvirus 6 infection and inflammatory bowel disease using novel biomarker. JGH Open 2023; 7:790-796. [PMID: 38034055 PMCID: PMC10684980 DOI: 10.1002/jgh3.12992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 10/15/2023] [Accepted: 10/18/2023] [Indexed: 12/02/2023]
Abstract
Objective Inflammatory bowel disease (IBD) is closely related to stress and fatigue. Human herpesvirus 6B (HHV-6B) is reactivated by stress and fatigue and is associated with IBD. This study aimed to clarify the relationship between IBD and HHV-6B. Methods Antibody titers to SITH-1, a protein specific to HHV-6B latent infection, were measured in 163 patients with IBD (107 with ulcerative colitis [UC] and 56 with Crohn's disease [CD]); clinical and endoscopic scores and depression scores of UC and CD were analyzed to examine the relationship between SITH-1 and IBD. The SITH-1 cut-off value was set as 1.96, according to known reports. Results In patients with UC, C-reactive protein (CRP) level was significantly higher (1.5 vs 0.6 mg/L, P = 0.006) and disease exacerbation within 6 months after entry was significantly more common in the SITH-1 (+) group (20% vs 0%, P < 0.001). In the subanalysis comparing with and without UC exacerbation, the optimal cut-off value for SITH-1 to detect UC exacerbation was 3.44 (area under the curve: 0.81; 95% confidence interval: 0.72-0.90). CRP levels, SITH-1 levels, and disease activity scores by the clinical or endoscopic index were significantly higher in the exacerbation group than in the non-exacerbation group (2.6 vs 0.9 mg/L, P = 0.03; 4.90 vs 1.71, P < 0.001; 4 vs 3, P = 0.03; 5 vs 3, P = 0.02; respectively). Conclusion Patients with UC with high titers of SITH-1 have high disease activity and frequent disease exacerbation. SITH-1 can be associated with UC disease activity.
Collapse
Affiliation(s)
- Satohiro Matsumoto
- Department of GastroenterologyJichi Medical University Saitama Medical CenterSaitamaSaitamaJapan
| | - Yuzo Otaki
- Department of GastroenterologyJichi Medical University Saitama Medical CenterSaitamaSaitamaJapan
| | - Yukio Yoshida
- Department of GastroenterologyJichi Medical University Saitama Medical CenterSaitamaSaitamaJapan
| | - Nobuyuki Kobayashi
- Department of VirologyThe Jikei University School of MedicineMinato CityTokyoJapan
| | - Naomi Oka
- Department of VirologyThe Jikei University School of MedicineMinato CityTokyoJapan
| | - Hiroyuki Yanagisawa
- Department of Public Health & Environmental MedicineThe Jikei University School of MedicineMinato CityTokyoJapan
| | - Kazuhiro Kondo
- Department of VirologyThe Jikei University School of MedicineMinato CityTokyoJapan
| |
Collapse
|
6
|
Nagata T, Shinagawa S, Kobayashi N, Kondo K, Shigeta M. Alterations of neuropsychiatric symptoms in dementia patients during hospitalization in a dementia ward. Psychogeriatrics 2023; 23:888-890. [PMID: 37437957 DOI: 10.1111/psyg.13003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 06/05/2023] [Accepted: 06/28/2023] [Indexed: 07/14/2023]
Affiliation(s)
- Tomoyuki Nagata
- Department of Psychiatry, The Jikei University School of Medicine, Tokyo, Japan
- Center for Dementia-Related Diseases, Airanomori Hospital, Kagoshima, Japan
| | | | - Nobuyuki Kobayashi
- Department of Virology, The Jikei University School of Medicine, Tokyo, Japan
| | - Kazuhiro Kondo
- Department of Virology, The Jikei University School of Medicine, Tokyo, Japan
| | - Masahiro Shigeta
- Department of Psychiatry, The Jikei University School of Medicine, Tokyo, Japan
| |
Collapse
|
7
|
Hang NTL, Hijikata M, Maeda S, Thuong PH, Huan HV, Hoang NP, Tam DB, Anh PT, Huyen NT, Cuong VC, Kobayashi N, Wakabayashi K, Miyabayashi A, Seto S, Keicho N. Host-pathogen relationship in retreated tuberculosis with major rifampicin resistance-conferring mutations. Front Microbiol 2023; 14:1187390. [PMID: 37469437 PMCID: PMC10352910 DOI: 10.3389/fmicb.2023.1187390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 06/09/2023] [Indexed: 07/21/2023] Open
Abstract
Introduction It is assumed that host defense systems eliminating the pathogen and regulating tissue damage make a strong impact on the outcome of tuberculosis (TB) disease and that these processes are affected by rifampicin (RIF) resistance-conferring mutations of Mycobacterium tuberculosis (Mtb). However, the host responses to the pathogen harboring different mutations have not been studied comprehensively in clinical settings. We analyzed clinico-epidemiological factors and blood transcriptomic signatures associated with major rpoB mutations conferring RIF resistance in a cohort study. Methods Demographic data were collected from 295 active pulmonary TB patients with treatment history in Hanoi, Vietnam. When recruited, drug resistance-conferring mutations and lineage-specific variations were identified using whole-genome sequencing of clinical Mtb isolates. Before starting retreatment, total RNA was extracted from the whole blood of HIV-negative patients infected with Mtb that carried either the rpoB H445Y or rpoB S450L mutation, and the total RNA was subjected to RNA sequencing after age-gender matching. The individual RNA expression levels in the blood sample set were also measured using real-time RT-PCR. Logistic and linear regression models were used to assess possible associations. Results In our cohort, rpoB S450L and rpoB H445Y were major RIF resistance-conferring mutations [32/87 (36.8%) and 15/87 (17.2%), respectively]. H445Y was enriched in the ancient Beijing genotype and was associated with nonsynonymous mutations of Rv1830 that has been reported to regulate antibiotic resilience. H445Y was also more frequently observed in genetically clustered strains and in samples from patients who had received more than one TB treatment episode. According to the RNA sequencing, gene sets involved in the interferon-γ and-α pathways were downregulated in H445Y compared with S450L. The qRT-PCR analysis also confirmed the low expression levels of interferon-inducible genes, including BATF2 and SERPING1, in the H445Y group, particularly in patients with extensive lesions on chest X-ray. Discussion Our study results showed that rpoB mutations as well as Mtb sublineage with additional genetic variants may have significant effects on host response. These findings strengthen the rationale for investigation of host-pathogen interactions to develop countermeasures against epidemics of drug-resistant TB.
Collapse
Affiliation(s)
| | - Minako Hijikata
- Department of Pathophysiology and Host Defense, The Research Institute of Tuberculosis, JATA, Tokyo, Japan
| | - Shinji Maeda
- Faculty of Pharmaceutical Sciences, Hokkaido University of Science, Sapporo, Hokkaido, Japan
| | | | | | | | - Do Bang Tam
- Department of Biochemistry, Hematology and Blood Transfusion, Hanoi Lung Hospital, Hanoi, Vietnam
| | - Pham Thu Anh
- Tuberculosis Network Management Office, Hanoi Lung Hospital, Hanoi, Vietnam
| | - Nguyen Thu Huyen
- NCGM-BMH Medical Collaboration Center, Hanoi, Vietnam
- Department of Health Policy and Economics, Hanoi University of Public Health, Hanoi, Vietnam
| | | | | | - Keiko Wakabayashi
- Department of Pathophysiology and Host Defense, The Research Institute of Tuberculosis, JATA, Tokyo, Japan
| | - Akiko Miyabayashi
- Department of Pathophysiology and Host Defense, The Research Institute of Tuberculosis, JATA, Tokyo, Japan
| | - Shintaro Seto
- Department of Pathophysiology and Host Defense, The Research Institute of Tuberculosis, JATA, Tokyo, Japan
| | - Naoto Keicho
- The Research Institute of Tuberculosis, JATA, Tokyo, Japan
- National Center for Global Health and Medicine, Tokyo, Japan
| |
Collapse
|
8
|
Kobayashi N, Tanimura C, Aoto H, Nagata A, Otani S, Tokushima Y, Fukada M, Morita T, Inoue K, Kageyama S. Increased knowledge levels of patients with diabetes in resource-limited communities after receiving peer-led education. Health Educ Res 2023:cyad023. [PMID: 37364256 DOI: 10.1093/her/cyad023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 04/25/2023] [Accepted: 06/09/2023] [Indexed: 06/28/2023]
Abstract
Diabetes self-management education through peer support has been beneficial, especially in regions with limited medical resources. Studying the effects of education offered by trained peers of patients will facilitate tailoring the peer-led education programs to the regions' specific needs. Here, we evaluated changes in diabetes-related indicators in Filipino patients who received a peer-led education. We used data on 23 patients (age, 67.83 ± 6.69 years; 82.6% female) who participated in all five surveys performed every 6 months from March 2017 to March 2019. After the second survey until the end of this study, the participants were educated in diabetes self-management by their 13 peers who previously had received the training in diabetes self-management. Participants' knowledge of diabetes and the related 'cause, risk factors, nature of diabetes and complications' subindicator were greater on all surveys after starting the peer-led education compared with those on the second survey (i.e. before starting the education); these values did not differ between the first two surveys. Because increasing patients' knowledge can enhance their ability to self-manage their disease and thus improve their quality of life, strategies to expand patients' knowledge about diabetes should be included when organizing peer-led education in regions with limited medical resources.
Collapse
Affiliation(s)
| | - Chika Tanimura
- School of Health Science, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan
| | - Haruka Aoto
- School of Health Science, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan
| | - Abir Nagata
- Department of Regenerative Dermatology, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
- Graduate School of Public Health, St Luke's International University, Tokyo 104-0045, Japan
| | - Shinji Otani
- International Platform for Dryland Research and Education, Tottori University, Tottori 680-0001, Japan
| | - Yasuko Tokushima
- School of Health Science, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan
| | - Mika Fukada
- School of Health Science, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan
| | - Tetsuji Morita
- Department of Rehabilitation, Daisen Rehabilitation Hospital, Hoki-cho 689-4102, Japan
| | - Kazuoki Inoue
- Department of Community-based Family Medicine, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan
| | - Seiji Kageyama
- Division of Virology, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan
| |
Collapse
|
9
|
Oka N, Shimada K, Ishii A, Kobayashi N, Kondo K. SARS-CoV-2 S1 protein causes brain inflammation by reducing intracerebral acetylcholine production. iScience 2023; 26:106954. [PMID: 37275532 PMCID: PMC10208654 DOI: 10.1016/j.isci.2023.106954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 02/21/2023] [Accepted: 05/22/2023] [Indexed: 06/07/2023] Open
Abstract
Neurological complications that occur in SARS-CoV-2 infection, such as olfactory dysfunction, brain inflammation, malaise, and depressive symptoms, are thought to contribute to long COVID. However, in autopsies of patients who have died from COVID-19, there is normally no direct evidence that central nervous system damage is due to proliferation of SARS-CoV-2. For this reason, many aspects of the pathogenesis mechanisms of such symptoms remain unknown. Expressing SARS-CoV-2 S1 protein in the nasal cavity of mice was associated with increased apoptosis of the olfactory system and decreased intracerebral acetylcholine production. The decrease in acetylcholine production was associated with brain inflammation, malaise, depressive clinical signs, and decreased expression of the cytokine degrading factor ZFP36. Administering the cholinesterase inhibitor donepezil to the mice improved brain inflammation, malaise and depressive clinical signs. These findings could contribute to the elucidation of the pathogenesis mechanisms of neurological complications associated with COVID-19 and long COVID.
Collapse
Affiliation(s)
- Naomi Oka
- Department of Virology, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo 105-8461, Japan
| | - Kazuya Shimada
- Department of Virology, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo 105-8461, Japan
| | - Azusa Ishii
- Department of Virology, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo 105-8461, Japan
| | - Nobuyuki Kobayashi
- Department of Virology, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo 105-8461, Japan
| | - Kazuhiro Kondo
- Department of Virology, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo 105-8461, Japan
| |
Collapse
|
10
|
Imoto S, Suzukawa M, Fukutomi Y, Kobayashi N, Taniguchi M, Nagase T, Ohta K. Phenotype characterization and biomarker evaluation in moderate to severe type 2-high asthma. Asian Pac J Allergy Immunol 2023. [PMID: 37302094 DOI: 10.12932/ap-021222-1510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
BACKGROUND There are two major pathological phenotypes of asthma, type 2 (T2)-high and T2-low asthma, which are important in determining treatment strategies. However, the characteristics and phenotypes of T2-high asthma have not yet been fully identified. OBJECTIVE This study aimed to identify the clinical characteristics and phenotypes of patients with T2-high asthma. METHODS This study used data from a nationwide asthma cohort study in Japan, NHOM Asthma Study. T2-high asthma was defined as a blood eosinophils count ≥ 300 /μL and/or fractional exhaled nitric oxide level ≥ 25 ppb, and the clinical characteristics and biomarkers were compared between T2-high and T2-low asthma. Furthermore, T2-high asthma was phenotyped via hierarchical cluster analysis using Ward's method. RESULTS Patients with T2-high asthma were older, less likely to be female, had longer asthma duration, had lower pulmonary function, and had more comorbidities, including sinusitis and SAS. Patients with T2-high asthma showed higher serum thymus and activation-regulated chemokine and urinary leukotriene E4 levels and lower serum ST2 levels than those with T2-low asthma. There were four phenotypes among patients with T2-high asthma: Cluster 1 (youngest, early-onset, and atopic), Cluster 2 (long duration, eosinophilic, and low lung function), Cluster 3 (elderly, female-dominant, and late-onset), and Cluster 4 (elderly, late-onset, and asthma-COPD overlap-dominant). CONCLUSIONS Patients with T2-high asthma have distinct characteristics and four distinct phenotypes, in which eosinophil-dominant Cluster 2 is the most severe phenotype. The present findings may be useful in precision medicine for asthma treatment in the future.
Collapse
Affiliation(s)
- Sahoko Imoto
- National Hospital Organization Tokyo National Hospital, Tokyo, Japan
- Department of Respiratory Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Maho Suzukawa
- National Hospital Organization Tokyo National Hospital, Tokyo, Japan
| | - Yuma Fukutomi
- Clinical Research Center, National Hospital Organization Sagamihara National Hospital, Kanagawa, Japan
| | | | - Masami Taniguchi
- Clinical Research Center, National Hospital Organization Sagamihara National Hospital, Kanagawa, Japan
- Shonan Kamakura General Hospital, Kanagawa, Japan
| | - Takahide Nagase
- Department of Respiratory Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Ken Ohta
- National Hospital Organization Tokyo National Hospital, Tokyo, Japan
- Japan Anti-Tuberculosis Association, Fukujuji Hospital, Tokyo, Japan
| |
Collapse
|
11
|
Suzukawa M, Ohta K, Hashimoto H, Oyamada Y, Miki M, Ogawara M, Inoue Y, Saito AM, Fukutomi Y, Kobayashi N, Taniguchi M. Characterization and cluster analyses of elderly asthma in comparison with nonelderly patients with asthma in Japan. Ann Allergy Asthma Immunol 2023; 130:607-616.e3. [PMID: 36657562 DOI: 10.1016/j.anai.2023.01.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 01/03/2023] [Accepted: 01/04/2023] [Indexed: 01/18/2023]
Abstract
BACKGROUND Asthma is a heterogeneous disease with multiple phenotypes that are useful in precision medicine. As the population ages, the elderly asthma (EA, aged ≥ 65 years) population is growing, and EA is now a major health problem worldwide. OBJECTIVE To characterize EA and identify its phenotypes. METHODS In adult patients with asthma (aged ≥ 18 years) who had been diagnosed with having asthma at least 1 year before study enrollment, 1925 were included in the NHOM-Asthma (registered in UMIN-CTR; UMIN000027776), and the data were used for this study, JFGE-Asthma (registered in UMIN-CTR; UMIN000036912). Data from EA and non-EA (NEA) groups were compared, and Ward's minimum-variance hierarchical clustering method and principal component analysis were performed. RESULTS EA was characterized by older asthma onset, longer asthma duration and smoking history, more comorbidities, lower pulmonary function, less atopic, lower adherence, and more hospital admissions because of asthma. In contrast, the number of eosinophils, total immunoglobulin E level, oral corticosteroid use, and asthma control questionnaire scores were equivalent between EA and NEA. There were 3 distinct phenotypes in EA, which are as follows: EA1: youngest, late onset, short duration, mild; EA2: early onset, long duration, atopic, low lung function, moderate; and EA3: oldest, eosinophilic, overweight, low lung function, most severe. The classification factors of the EA phenotypes included the age of onset and asthma control questionnaire-6. Similarities were observed between EA and NEA phenotypes after principal component analysis. CONCLUSION The EA in Japan may be unique because of the population's high longevity. Characterization of EA phenotypes from the present cohort indicated the need for distinct precision medicine for EA. TRIAL REGISTRATION JFGE-Asthma registered in UMIN-CTR (https://www.umin.ac.jp/ctr/); UMIN000036912.
Collapse
Affiliation(s)
- Maho Suzukawa
- Clinical Research Center, National Hospital Organization Tokyo National Hospital, Tokyo, Japan.
| | - Ken Ohta
- Clinical Research Center, National Hospital Organization Tokyo National Hospital, Tokyo, Japan; Japan Anti-Tuberculosis Association, JATA Fukujuji Hospital, Tokyo, Japan
| | - Hiroya Hashimoto
- Clinical Research Center, National Hospital Organization Nagoya Medical Center, Nagoya, Japan; Core Laboratory, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | | | - Mari Miki
- Tokushima Prefecture Naruto Hospital, Tokushima, Japan
| | - Mitsumasa Ogawara
- National Hospital Organization Osaka National Hospital, Osaka, Japan
| | - Yoshikazu Inoue
- National Hospital Organization Kinki-Chuo Chest Medical Center, Osaka, Japan
| | - Akiko M Saito
- Clinical Research Center, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
| | - Yuma Fukutomi
- Clinical Research Center, National Hospital Organization Sagamihara National Hospital, Kanagawa, Japan
| | | | - Masami Taniguchi
- Clinical Research Center, National Hospital Organization Sagamihara National Hospital, Kanagawa, Japan; Shonan Kamakura General Hospital, Kanagawa, Japan
| | | |
Collapse
|
12
|
Suzukawa M, Ohta K, Fukutomi Y, Hashimoto H, Endo T, Abe M, Kamide Y, Yoshida M, Kikuchi Y, Kita T, Chibana K, Tanimoto Y, Hyodo K, Takata S, Inui T, Yasui M, Harada Y, Sato T, Sakakibara Y, Minakata Y, Inoue Y, Tamaki S, Shinohara T, Takami K, Tsubakihara M, Oki M, Wakamatsu K, Horiba M, Ideura G, Hidaka K, Saito AM, Kobayashi N, Taniguchi M. Classifications of moderate to severe asthma phenotypes in Japan and analysis of serum biomarkers: A Nationwide Cohort Study in Japan (NHOM Asthma Study). Allergol Int 2023; 72:63-74. [PMID: 35791991 DOI: 10.1016/j.alit.2022.06.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 05/17/2022] [Accepted: 05/25/2022] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Asthma is a heterogeneous disease, and phenotyping can facilitate understanding of disease pathogenesis and direct appropriate asthma treatment. This nationwide cohort study aimed to phenotype asthma patients in Japan and identify potential biomarkers to classify the phenotypes. METHODS Adult asthma patients (n = 1925) from 27 national hospitals in Japan were enrolled and divided into Global Initiative for Asthma (GINA) steps 4 or 5 (GINA 4, 5) and GINA Steps 1, 2, or 3 (GINA 1-3) for therapy. Clinical data and questionnaires were collected. Biomarker levels among GINA 4, 5 patients were measured. Ward's minimum variance hierarchical clustering method and tree analysis were performed for phenotyping. Analysis of variance, the Kruskal-Wallis, and chi-square tests were used to compare cluster differences. RESULTS The following five clusters were identified: 1) late-onset, old, less-atopic; 2) late-onset, old, eosinophilic, low FEV1; 3) early-onset, long-duration, atopic, poorly controlled; 4) early-onset, young, female-dominant, atopic; and 5) female-dominant, T1/T2-mixed, most severe. Age of onset, disease duration, blood eosinophils and neutrophils, asthma control questionnaire Sum 6, number of controllers, FEV1, body mass index (BMI), and hypertension were the phenotype-classifying variables determined by tree analysis that assigned 79.5% to the appropriate cluster. Among the cytokines measured, IL-1RA, YKL40/CHI3L1, IP-10/CXCL10, RANTES/CCL5, and TIMP-1 were useful biomarkers for classifying GINA 4, 5 phenotypes. CONCLUSIONS Five distinct phenotypes were identified for moderate to severe asthma and may be classified using clinical and molecular variables (Registered in UMIN-CTR; UMIN000027776.).
Collapse
Affiliation(s)
- Maho Suzukawa
- Clinical Research Center, National Hospital Organization Tokyo National Hospital, Tokyo, Japan.
| | - Ken Ohta
- Clinical Research Center, National Hospital Organization Tokyo National Hospital, Tokyo, Japan; Japan Anti-Tuberculosis Association, JATA Fukujuji Hospital, Tokyo, Japan.
| | - Yuma Fukutomi
- Clinical Research Center, National Hospital Organization Sagamihara National Hospital, Kanagawa, Japan
| | - Hiroya Hashimoto
- Clinical Research Center, National Hospital Organization Nagoya Medical Center, Nagoya, Japan; Core Laboratory, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Takeo Endo
- National Hospital Organization Mito Medical Center, Ibaraki, Japan
| | - Masahiro Abe
- National Hospital Organization Ehime Medical Center, Ehime, Japan
| | - Yosuke Kamide
- Clinical Research Center, National Hospital Organization Sagamihara National Hospital, Kanagawa, Japan
| | - Makoto Yoshida
- National Hospital Organization Fukuoka National Hospital, Fukuoka, Japan
| | | | - Toshiyuki Kita
- National Hospital Organization Kanazawa Medical Center, Ishikawa, Japan
| | - Kenji Chibana
- National Hospital Organization Okinawa National Hospital, Okinawa, Japan
| | - Yasushi Tanimoto
- National Hospital Organization Minami-Okayama Medical Center, Okayama, Japan
| | - Kentaro Hyodo
- National Hospital Organization Ibarakihigashi National Hospital, Ibaraki, Japan
| | - Shohei Takata
- National Hospital Organization Fukuokahigashi Medical Center, Fukuoka, Japan
| | - Toshiya Inui
- National Hospital Organization Disaster Medical Center, Tokyo, Japan
| | - Masahide Yasui
- National Hospital Organization Nanao National Hospital, Ishikawa, Japan
| | - Yoshinori Harada
- Department of Rheumatology & Allergology, National Hospital Organization Osaka Minami Medical Center, Osaka, Japan
| | - Toshio Sato
- National Hospital Organization Okayama Medical Center, Okayama, Japan
| | - Yumi Sakakibara
- Federation of National Public Service Personnel Mutual Aid Associations Hiratsuka Kyosai Hospital, Kanagawa, Japan
| | | | - Yoshikazu Inoue
- National Hospital Organization Kinki-Chuo Chest Medical Center, Osaka, Japan
| | - Shinji Tamaki
- National Hospital Organization Nara Medical Center, Nara, Japan
| | - Tsutomu Shinohara
- National Hospital Organization Kochi National Hospital, Kochi, Japan
| | - Kazutaka Takami
- Kanto Central Hospital of the Mutual Aid Association of Public School Teachers, Tokyo, Japan
| | | | - Masahide Oki
- Department of Respiratory Medicine, National Hospital Organization Nagoya Medical Center, Aichi, Japan
| | - Kentaro Wakamatsu
- National Hospital Organization Omuta National Hospital, Fukuoka, Japan
| | - Masahide Horiba
- Division of Respiratory Medicine, National Hospital Organization Higashisaitama National Hospital, Saitama, Japan
| | - Gen Ideura
- National Hospital Organization Shinshu Ueda Medical Center, Nagano, Japan
| | - Koko Hidaka
- National Hospital Organization Kokura Medical Center, Fukuoka, Japan
| | - Akiko M Saito
- Clinical Research Center, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
| | - Nobuyuki Kobayashi
- Clinical Research Center, National Hospital Organization Tokyo National Hospital, Tokyo, Japan; Fureai Machida Hospital, Tokyo, Japan
| | - Masami Taniguchi
- Clinical Research Center, National Hospital Organization Sagamihara National Hospital, Kanagawa, Japan; Shonan Kamakura General Hospital, Kanagawa, Japan
| |
Collapse
|
13
|
Nagata T, Shinagawa S, Kobayashi N, Kondo K, Shigeta M. A case of V180I genetic mutation Creutzfeldt Jakob disease (CJD) with delusional misidentification as an initial symptom. Prion 2022; 16:7-13. [PMID: 34965177 PMCID: PMC9757407 DOI: 10.1080/19336896.2021.2017701] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
An 84-year-old woman who had been diagnosed as having dementia with Lewy body (DLB) upon initial examination exhibited cognitive impairments and person delusional misidentification (DMS): she transiently claimed that her spouse was a stranger. She was re-examined at the age of 89 years; her frequency of speech and activities of daily living had both decreased, leading to verbal communication difficulties complicated by sensory aphasia, and brain diffusion-weighted (DW) magnetic resonance imaging (MRI) showed cortical hyperintensities in some areas of both hemispheres. About 4 months later, the DW high-intensity areas were observed to have expanded into diffuse cortical areas. While the clinical features of Creutzfeldt Jakob disease (CJD) (myoclonus; ataxia; parkinsonism; rapidly progressive cognitive impairments; periodic sharp discharges on electroencephalograms) were not observed, a genetic analysis of the prion protein (PRNP) gene, which was performed because of a family history of dementia, revealed a V180I mutation (heterozygosis: valine/isoleucine) suggesting genetic CJD (g-CJD). Her activity progressively decreased, reaching akinetic mutism about 11 months after the re-examination. Finally, she suffered from severe bedsores and died from aspiration pneumonia at the age of 90 years. The present report describes the first case of person DMS as an initial neuropsychiatric symptom for V180I g-CJD; the typical long-term clinical symptoms of CJD were not observed in this patient. The inclusion of person DMS as an initial clinical symptom and the presence of expansive cortical hyperintensity areas may be useful for clinicians attempting to diagnosis V180I g-CJD in patients with elusive symptoms.
Collapse
Affiliation(s)
- Tomoyuki Nagata
- Department of Psychiatry, The Jikei University School of Medicine, Tokyo, Japan,Department of Psychiatry, Airanomori Hospital, Kagoshima, Japan,CONTACT Tomoyuki Nagata Department of Psychiatry, The Jikei University School of Medicine, 3-25-8 Nishishimbashi, Minato-ku, Tokyo105–8471Japan
| | | | - Nobuyuki Kobayashi
- Department of Virology, The Jikei University School of Medicine, Tokyo, Japan
| | - Kazuhiro Kondo
- Department of Virology, The Jikei University School of Medicine, Tokyo, Japan
| | - Masahiro Shigeta
- Department of Psychiatry, The Jikei University School of Medicine, Tokyo, Japan
| |
Collapse
|
14
|
Osaka R, Kobayashi N, Shimada K, Ishii A, Oka N, Kondo K. VP26, a herpes simplex virus type 1 capsid protein, increases DNA methylation in COASY promoter region. Brain Behav Immun Health 2022; 26:100545. [PMCID: PMC9636445 DOI: 10.1016/j.bbih.2022.100545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 10/20/2022] [Accepted: 10/23/2022] [Indexed: 11/06/2022] Open
Affiliation(s)
| | - Nobuyuki Kobayashi
- Corresponding author. Department of Virology, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo, 105-8461, Japan.
| | | | | | | | | |
Collapse
|
15
|
Sakasegawa H, Nomura M, Sawayama K, Nakayama T, Yaita Y, Yonekawa H, Kobayashi N, Arima T, Hiyama T, Murata E. Liquid decontamination using acidic electrolyzed water for various uranium-contaminated steel surfaces in dismantled centrifuge. Progress in Nuclear Energy 2022. [DOI: 10.1016/j.pnucene.2022.104396] [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: 11/24/2022]
|
16
|
Ara H, Paul SK, Kobayashi N, Nasreen SA, Ahmed F. Prevalence of Virulence Genes in Acinetobacter baumannii Isolated from Clinical Samples in Mymensingh Medical College Hospital, Bangladesh. Mymensingh Med J 2022; 31:914-919. [PMID: 36189532] [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: 06/16/2023]
Abstract
Acinetobacter baumannii is an opportunistic bacterial pathogen that is the most important cause of hospital-acquired infections. The objective of this study was to evaluate the predominance and determination of virulence encoding genes in A. baumannii isolates. During this cross-sectional study period from February 2019 to March 2020 of 380 clinical samples including endotracheal aspirates (70), wound swab or pus (175), urine (70) and blood (65) analysed in inpatients admitted to the hospital in different unit like ICU, Surgery and Burn unit of Mymensingh Medical College Hospital. Out of 380 studied samples, 130(34.21%) strains were yielded growth. Among 130 isolates, Acinetobacter spp. was 49(37.69%). Totally, 39(79.59%) were Acinetobacter baumannii which was detected by molecular technique PCR. Further more, the determination of virulence genes csgA and fimH detected by PCR. Among two studied virulence genes, csgA (38.46%) was the most prevalent virulent genes associated with disease severity and co-morbidity of the patient in A. baumannii infections.
Collapse
Affiliation(s)
- H Ara
- Dr Hosne Ara, MD (Thesis Part), Department of Microbiology, Mymensingh Medical College (MMC), Mymensingh, Bangladesh; E-mail:
| | | | | | | | | |
Collapse
|
17
|
Alam M, Paul SK, Das BR, Hoque N, Rashid A, Sultana M, Khatun MN, Ahmed S, Nasreen SA, Kobayashi N. Study of Human Brucellosis among Patients with Pyrexia of Unknown Origin by Antibody Detection. Mymensingh Med J 2022; 31:622-629. [PMID: 35780342] [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: 06/15/2023]
Abstract
This study was performed to determine the seropositivity of human brucellosis among the patients suffering from pyrexia of unidentified origin. This cross-sectional study was performed at department of Microbiology, Mymensingh Medical College, Mymensingh, Bangladesh from September 2018 to August 2019; among the patients of pyrexia of unknown origin visited inpatient and outpatient facility of department of Medicine and department of Paediatrics, Mymensingh Medical College Hospital (MMCH) in Mymensingh division of Bangladesh. A total of 400 serum samples were screened by Brucella-specific latex agglutination test to determine seropositivity. Seven percent (7.0%) (28/400) serum samples were found to be seropositive for brucellosis by detecting Brucella-specific antibody at a titer ≥1:160. Therefore, Brucella-specific latex agglutination test may be recommended as a screening test for human brucellosis in developing and underdeveloped countries.
Collapse
Affiliation(s)
- M Alam
- Dr Mahbubul Alam, MD Resident, Department of Microbiology, Mymensingh Medical College (MMC), Mymensingh, Bangladesh; E-mail:
| | | | | | | | | | | | | | | | | | | |
Collapse
|
18
|
Ara H, Paul SK, Kobayashi N, Nasreen SA, Ahmed F, Nila SS. Molecular Detection of MBL Encoding Genes in Acinetobacter baumannii strains Isolated from Various Samples at a Tertiary Care Hospital in Mymensingh. Mymensingh Med J 2022; 31:666-672. [PMID: 35780348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
MBL producing Acinetobacter baumannii is a major threat for therapeutic treatment of hospital acquired infections. The aim of this study was to determine the prevalence of metallo-β-lactamase genes VIM, IMP & SIM genes amongst isolated A. baumannii. This cross sectional study conducted in the department of Microbiology Mymensingh Medical College from March 2019 to February 2020. 49 Acinetobacter spp. were isolated from different clinical samples including endotracheal aspirates, wound swab/pus, urine and blood. Among 380 clinical samples 130 organisms were isolated growth was 34.21%. Out of 130 isolated strains, 49(37.69%) were Acinetobacter spp identified by standard bacteriological method and resistance to different antibiotics was assessed with Kirby- Bauer Disc diffusion method. Among 49 Acinetobacter spp, 39(79.59%) were Acinetobacter baumannii which was identified by molecular method PCR directing OXA-51 like gene. Multiplex PCR was done to determine MBL genes existence VIM, IMP & SIM. Ceftriaxone (79.48%) showing higher resistance and colistin (12.82%) showing lower resistance. All the strains were sensitive to tigecycline. The distribution of MBLs genes such as VIM 20(51.28%), IMP 5(12.82%) and SIM 0 (0%). This study showed that high level of antibiotic resistance and VIM was the most prevalent MBL genes among A. baumannii highlighting the need for indigenous antibiotic usage plan & infection control measures to prevent the spread of these resistance genes.
Collapse
Affiliation(s)
- H Ara
- Dr Hosne Ara, MD (Thesis) Part, Department of Microbiology, Mymensingh Medical College (MMC), Mymensingh, Bangladesh; E-mail:
| | | | | | | | | | | |
Collapse
|
19
|
Kobayashi N, Shinagawa S, Nagata T, Shigeta M, Kondo K. Suppressors of Cytokine Signaling Are Decreased in Major Depressive Disorder Patients. J Pers Med 2022; 12:jpm12071040. [PMID: 35887537 PMCID: PMC9315526 DOI: 10.3390/jpm12071040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 06/23/2022] [Accepted: 06/24/2022] [Indexed: 12/01/2022] Open
Abstract
There is strong evidence for an association between major depressive disorder (MDD) and inflammation. However, some studies have not observed an increase in inflammatory cytokines in MDD, and the mechanism behind this is unknown. In the present study, we evaluated MDD severity using the Montgomery–Åsberg Depression Rating Scale (MADRS) and quantified mRNA levels of the blood inflammatory cytokines interleukin (IL) 1β, IL-6 and tumor necrosis factor alpha (TNF-α), as well as negative regulators of cytokine signaling—comprising IL-10, IL-1RA, SOCS1, SOCS2 and SOCS3—in MDD patients (n = 36), with a focus on mild MDD, and normal controls (NC, n = 30). We also measured the serum levels of IL-1β and IL-6. Neither the blood mRNA nor the protein levels of inflammatory cytokines were significantly elevated in the MDD group compared with the NC group. However, we observed significant decreases in SOCS1, SOCS2 and SOCS3 mRNA in the MDD group compared to the NC group. A significant finding was a decrease in SOCS3 mRNA after remission from MDD, suggesting that SOCS3 is a trait marker in depressive symptoms. We consider that our findings would be useful in elucidating the pathophysiological mechanism of depression.
Collapse
Affiliation(s)
- Nobuyuki Kobayashi
- Department of Virology, The Jikei University School of Medicine, Tokyo 105-8461, Japan;
- Department of Psychiatry, The Jikei University School of Medicine, Tokyo 105-8461, Japan; (S.S.); (T.N.); (M.S.)
- Correspondence: ; Tel.: +81-3-3433-1111; Fax: +81-3-5400-1305
| | - Shunichiro Shinagawa
- Department of Psychiatry, The Jikei University School of Medicine, Tokyo 105-8461, Japan; (S.S.); (T.N.); (M.S.)
| | - Tomoyuki Nagata
- Department of Psychiatry, The Jikei University School of Medicine, Tokyo 105-8461, Japan; (S.S.); (T.N.); (M.S.)
| | - Masahiro Shigeta
- Department of Psychiatry, The Jikei University School of Medicine, Tokyo 105-8461, Japan; (S.S.); (T.N.); (M.S.)
| | - Kazuhiro Kondo
- Department of Virology, The Jikei University School of Medicine, Tokyo 105-8461, Japan;
| |
Collapse
|
20
|
Nila SS, Paul SK, Kobayashi N, Nasreen SA, Ahmed S, Ahamad F, Khanam J, Nahar S, Sayeed AA, Al Amin AM. Concurrent Infection of Orientia Tsutsugamushi with Rickettsia spp. Including Rickettsia felis in North Central Bangladesh. Mymensingh Med J 2022; 31:350-354. [PMID: 35383749] [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: 06/14/2023]
Abstract
Rickettsial diseases are one of the leading causes of treatable acute febrile illness in Asia pacific region. This cross-sectional descriptive study was conducted at Department of Microbiology, Mymensingh Medical College to diagnose scrub typhus by rapid Immunochromatographic Test (ICT) and Nested PCR followed by molecular identification of possible Rickettsial coinfection among suspected febrile patients in Mymensingh, Bangladesh from March 2019 to February 2020. Among the enrolled 402 patients, 89 samples (22.13%) were seropositive by Immunochromatographic Test (ICT) and 65 samples (16.16%) were positive for O. tsutsugamushi DNA by Nested PCR, targeting 47KDa gene. Therefore, 113/402 (28.10%) samples were positive for scrub typhus by PCR and/or ICT. All the scrub typhus positive samples were further subjected to Nested PCR targeting 17 KDa gene for identification of Rickettsial co-infection and 13/113 (11.50%) were documented as positive. Then 13 Rickettsial co-infected samples were undertaken to automate sequencing and all were genetically confirmed as Rickettsia felis. Findings of the study may help clinicians to expand their list of differential diagnoses for undifferentiated fever and detection of Rickettsial co-infection may guide them to prescribe effective antimicrobials.
Collapse
Affiliation(s)
- S S Nila
- Dr Sultana Shabnam Nila, Assistant Professor (Microbiology), Mymensingh Medical College (MMC), Mymensingh, Bangladesh; E-mail:
| | | | | | | | | | | | | | | | | | | |
Collapse
|
21
|
Nila SS, Paul SK, Kobayashi N, Nasreen SA, Ahmed S, Ahmad F, Haque N, Khanam J, Paul A, Ara H, Sultana C, Rahman S, Rahman S, Sayeed AB, Jannat H. Socio-demographic and Clinico-epidemiological Study of Scrub Typhus in A Tertiary Care Hospital of Mymensingh, Bangladesh. Mymensingh Med J 2022; 31:66-71. [PMID: 34999682] [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: 06/14/2023]
Abstract
Scrub typhus is one of the leading causes of undifferentiated treatable febrile illness in Asia pacific region. It is grossly under diagnosed in many tropical countries of South Asia including Bangladesh, due to wide range of non-specific clinical presentations, low index of suspicion among clinicians, limited awareness and lack of accurate diagnostic facilities. This cross sectional observational study was conducted at department of Microbiology, Mymensingh Medical College, Mymensingh, Bangladesh from March 2019 to February 2020 enrolling 113 diagnosed cases of scrub typhus by Immunochromatographic test (ICT) and / or Nested PCR to characterize the socio-demographic and clinico-epidemiological features of scrub typhus in Mymensingh area. Majority of the scrub typhus cases came from rural areas (63.83%) and there was a slight female predominance (52.21%). The young (32.74%) and the young-adult age group (28.31%) were mostly affected. Most of the scrub typhus cases were housewives (30.98%), followed by farmers (23.89%) and students (21.23%). All the enrolled cases presented with fever. Other findings were myalgia (76.10%), headache (56.63%), cough (30.97%), vomiting (12.38%) and Respiratory distress (9.73%). Typical eschar of scrub typhus was present only in 9(7.96%) cases and 4(3.53%) patients had rashes on their skin. Few cases (3.53%) had jaundice and 15.96% cases were anaemic. Oliguria (7.96%) and neck rigidity (1.76%) were also documented. Most of the Nested PCR positive scrub typhus cases were documented during late rainy season and beginning of winter months. Findings of the study may offer increased awareness about high burden of scrub typhus as well as heightened suspicion among clinicians for early diagnosis, timely treatment and prevention of complications.
Collapse
Affiliation(s)
- S S Nila
- Dr Sultana Shabnam Nila, Assistant Professor, Department of Microbiology, Mymensingh Medical College (MMC), Mymensingh, Bangladesh; E-mail:
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
22
|
Ifa IA, Paul SK, Hossain MA, Haque N, Ahmed S, Nasreen SA, Abedin S, Kobayashi N. Coexistence of ESBL and MBL-mediated resistance in Acinetobacter baumannii in a Tertiary Care Hospital, Bangladesh. Mymensingh Med J 2022; 31:41-48. [PMID: 34999678] [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: 06/14/2023]
Abstract
Antimicrobial resistance mediated by extended-spectrum beta-lactamases (ESBL), AmpC beta-lactamase and metallo-beta-lactamase (MBL) producing Acinetobacter species is an emerging problem worldwide. In this cross-sectional study total 341 specimens were collected over a period of one year from January 2017 to January 2018. Specimens were collected from ICU and Surgery unit of Mymensingh Medical College Hospital, Mymensingh, Bangladesh. Specimens were collected from ICU and Surgery Unit of Mymensingh Medical College Hospital, Mymensingh, Bangladesh. Samples were processed for culture by standard conventional methods and susceptibility testing and determined by Kirby Bauer disc diffusion method. Antibiotic discs and their strength were according to the CLSI 2017 guideline. Molecular study was done to detect the species by OXA-51 gene and drug resistance genes (IMP, VIM, NDM, TEM, SHV, CTX, SPM, SIM and GIM). Species identification was done by OXA-51 gene which is intrinsic to Acinetobacter baumannii. Among the 46 isolates, 36(78.26%) were positive for Oxa-51 gene, 16(34.8%) for TEM gene, 9(19.6%) for VIM gene, 3(6.5%) for NDM gene and 1(2.2%) for IMP gene. This study gives an alarming sign towards high prevalence of cephalosporin and carbapenem resistance due to production of extended spectrum beta-lactamases and metallo-betalactamases, respectively. Early detection, proper antibiotic policies, and compliance towards infection control practices are the best defenses against these organisms.
Collapse
Affiliation(s)
- I A Ifa
- Dr Iffat Ara Ifa, MD Resident, Department of Microbiology, Mymensingh Medical College (MMC), Mymensingh, Bangladesh; E-mail:
| | | | | | | | | | | | | | | |
Collapse
|
23
|
Mori A, Kouyama S, Ohtomo-Abe A, Yamaguchi M, Kumitani C, Iwamoto K, Yano K, Fujita N, Iwata M, Nagayama K, Ryu K, Nakamura Y, Hamada Y, Watai K, Kamide Y, Sekiya K, Fukutomi Y, Matsumoto K, Tanimoto Y, Kobayashi N, Ohtomo T, Kaminuma O. [Steroid resistance of severe asthma - mechanisms and therapeutic targets]. Nihon Yakurigaku Zasshi 2022; 157:293-298. [PMID: 36047138 DOI: 10.1254/fpj.22027] [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: 06/15/2023]
Abstract
Asthma therapy in general has improved a lot in recent years, but it is still a major problem that severe asthma, which accounts for 10 to 20%, still suffers from strong symptoms on a daily basis despite all therapeutic agents used in combination. American SARP and European ENFUMOSA started in 2000 to advance pathophysiological insights of severe asthma. Clinical usage of antibodies and inhibitors against IgE, TNF, IL-5, IL-4, IL-13, and TSLP are also accumulating. Some of these molecular-targeted drugs improve respiratory function and reduce acute exacerbations in patients with severe asthma. Until now, cytokines have been assumed to be involved in chronic inflammation, but it is also interesting to elucidate the pathways of how cytokines are involved in respiratory function and acute exacerbations. We registered approximately 100 steroid-dependent asthma patients in Japan. Although long-lasting poor control of the disease was considered the cause of severe asthma in the past, steroid dependence in one third of the cases occurred within 2-3 years after the onset. Steroid resistance seems a key process from the early stage of the disease. Steroid resistance of T cell level was induced by extracellular co-stimulation and cytokine signals. The inhibition may improve steroid sensitivity and treat steroid-resistant asthma. Therefore, we established a steroid-resistant asthma model for the first time by transferring steroid resistant T cell clones, and analyzed the steroid sensitivity recovery effect of CTLA4-Ig. In addition, a multicenter, double-blind, placebo-controlled exploratory trial was performed as a POC study investigating the efficacy of abatacept in treatment-resistant severe asthma. Elucidation of the pathophysiology and mechanism by which steroids do not work is expected to be a breakthrough for the prevention and treatment of severe asthma.
Collapse
Affiliation(s)
- Akio Mori
- National Hospital Organization, Sagamihara National Hospital, Clinical Research Center
| | - Satoshi Kouyama
- National Hospital Organization, Sagamihara National Hospital, Clinical Research Center
| | - Akemi Ohtomo-Abe
- National Hospital Organization, Sagamihara National Hospital, Clinical Research Center
| | - Miyako Yamaguchi
- National Hospital Organization, Sagamihara National Hospital, Clinical Research Center
| | - Chiemi Kumitani
- National Hospital Organization, Sagamihara National Hospital, Clinical Research Center
| | - Keisuke Iwamoto
- National Hospital Organization, Sagamihara National Hospital, Division of Allergy and Respiratory medicine
| | - Kouichi Yano
- National Hospital Organization, Sagamihara National Hospital, Division of Allergy and Respiratory medicine
| | - Norihiro Fujita
- National Hospital Organization, Sagamihara National Hospital, Division of Allergy and Respiratory medicine
| | - Maki Iwata
- National Hospital Organization, Sagamihara National Hospital, Division of Allergy and Respiratory medicine
| | - Kisako Nagayama
- National Hospital Organization, Sagamihara National Hospital, Division of Allergy and Respiratory medicine
| | - Kai Ryu
- National Hospital Organization, Sagamihara National Hospital, Division of Allergy and Respiratory medicine
| | - Yuto Nakamura
- National Hospital Organization, Sagamihara National Hospital, Division of Allergy and Respiratory medicine
| | - Yuto Hamada
- National Hospital Organization, Sagamihara National Hospital, Division of Allergy and Respiratory medicine
| | - Kentaro Watai
- National Hospital Organization, Sagamihara National Hospital, Division of Allergy and Respiratory medicine
| | - Yosuke Kamide
- National Hospital Organization, Sagamihara National Hospital, Division of Allergy and Respiratory medicine
| | - Kiyoshi Sekiya
- National Hospital Organization, Sagamihara National Hospital, Division of Allergy and Respiratory medicine
| | - Yuma Fukutomi
- National Hospital Organization, Sagamihara National Hospital, Division of Allergy and Respiratory medicine
| | | | | | | | - Takayuki Ohtomo
- Center for Clinical Pharmacy, Tokyo University of Pharmacy and Life Science
| | - Osamu Kaminuma
- Department of Disease Model, Research Institute of Radiation Biology and Medicine, Hiroshima University
| |
Collapse
|
24
|
Khanam J, Paul SK, Kobayashi N, Nasreen SA, Ahmed S, Haque N, Paul A, Nila SS, Hosen MA. Detection of Quinolone Resistance Pattern and Presence of qnr Genes in Human Salmonella Isolates at Mymensingh, Bangladesh. Mymensingh Med J 2022; 31:94-98. [PMID: 34999686] [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: 06/14/2023]
Abstract
Among the quinolones, fluoroquinolones are broad spectrum antimicrobial agents used for treating many clinical infections including Salmonellosis. Although high level of resistance to fluoroquinolones remains low in Salmonella but reduced susceptibility is increasing worldwide. Plasmid-mediated quinolone resistance (PMQR) of qnr type (qnrA, B and S) has been identified now a day in several enterobacterial species including Salmonella spp. This cross-sectional study was held at department of Microbiology, Mymensingh Medical College, Mymensingh, Bangladesh from March 2019 to February 2020. This study was conducted to determine the current quinolone resistance pattern and to detect the presence of qnrA, qnrB and qnrS genes among Salmonella isolates. Antimicrobial susceptibility test of 36 Salmonella isolates were done by disc diffusion method. MIC of ciprofloxacin was detected by agar dilution method. Then amplification with specific primers of qnrA, qnrB and qnrS genes were performed for all Salmonella isolates. The present study observed 80.5% resistance to nalidixic acid, 33.3% to ciprofloxacin and 19.4% to ofloxacin by disc diffusion method. qnr A gene was detected in 2(5.5%) isolates, where as qnrS was detected in 5 (13.8%) isolates. None of the isolates was positive for qnrB gene. All the qnrA positive isolates showed resistance to Ciprofloxacin (MIC=128μg/ml) and Ofloxacin. In conclusion, presence of qnr genes in the study isolates is alarming, because, rapid dissemination might occur due to conjugative plasmid mediated horizontal transfer.
Collapse
Affiliation(s)
- J Khanam
- Dr Jobyda Khanam, Lecturer, Department of Microbiology, Mymensingh Medical College (MMC), Mymensingh, Bangladesh; E-mail:
| | | | | | | | | | | | | | | | | |
Collapse
|
25
|
Aoto H, Kobayashi N, Tokushima Y, Tanimura C, Fukada M, Nagata A, Otani S, Morita T, Inoue K, Hanaki K, Kageyama S, Kurozawa Y. Cognitive and Emotional Changes in Peer Educators of Type 2 Diabetes Patients After Starting Peer-Support Activities. Yonago Acta Med 2022; 65:303-314. [DOI: 10.33160/yam.2022.11.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 11/04/2022] [Indexed: 11/29/2022]
Affiliation(s)
- Haruka Aoto
- School of Health Science, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan
| | | | - Yasuko Tokushima
- School of Health Science, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan
| | - Chika Tanimura
- School of Health Science, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan
| | - Mika Fukada
- School of Health Science, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan
| | - Abir Nagata
- Department of Regenerative Dermatology, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan
| | - Shinji Otani
- International Platform for Dryland Research and Education, Tottori University, Tottori 680-0001, Japan
| | - Tetsuji Morita
- Department of Rehabilitation, Daisen Rehabilitation Hospital, Hoki-cho 689-4102, Japan
| | - Kazuoki Inoue
- National Health Insurance Daisen Clinic, Daisen-cho 689-3314, Japan
| | - Keiichi Hanaki
- School of Health Science, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan
| | - Seiji Kageyama
- Division of Virology, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan
| | - Youichi Kurozawa
- Division of Health Administration and Promotion, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan
| |
Collapse
|
26
|
Vervuurt RHJ, Mukherjee B, Nakane K, Tsutsumi T, Hori M, Kobayashi N. Reaction Mechanism and Selectivity Control of Si Compound ALE Based on Plasma Modification and F-Radical Exposure. Langmuir 2021; 37:12663-12672. [PMID: 34666489 DOI: 10.1021/acs.langmuir.1c02036] [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] [Indexed: 06/13/2023]
Abstract
In this work, atomic layer etching (ALE) of Si compounds using H2 or N2 plasma modification followed by fluorine radical exposure is discussed. It is shown that the H2 plasma modification process promotes the selective etching of SiN, SiC, and SiCO versus SiO2. The N2 plasma modification, on the other hand, enables the selective etching of SiC and SiCO versus SiN and SiO2. The origin of the etching selectivity between different Si compounds is investigated using a combination of in situ SE and FTIR supported by several ex situ analysis techniques. It is shown that the formation of a hydrogen-rich layer after plasma modification is essential to enable the ALE process. The hydrogen-rich layer can be formed due to ion and radicals of the modification plasma (H2 plasma modification) or be a result of the reconfiguration of hydrogen that is already present in the film (N2 plasma modification). The obtained insights are expected to further enhance the etching selectivity of Si compound ALE processes. Furthermore, it is anticipated that the process can be extended to many other compound materials such as Ti and Hf, as well as enable selective etching between their oxides, carbides, and nitrides.
Collapse
Affiliation(s)
| | - B Mukherjee
- ASM Japan K.K., 23-1, 6-chome Nagayama, Tama, Tokyo 206-0025, Japan
- Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan
| | - K Nakane
- Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan
| | - T Tsutsumi
- Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan
| | - M Hori
- Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan
| | - N Kobayashi
- Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan
| |
Collapse
|
27
|
Nila SS, Paul SK, Kobayashi N, Nasreen SA, Ahmed S, Ahamad F, Haque N, Khanam J, Paul A, Ara H, Sultana C, Rahman S, Titir SR, Sayeed AB, Roy S. Rapid Serologic and Molecular Diagnosis of Scrub Typhus among Suspected Febrile Patients Visiting Mymensingh Medical College Hospital. Mymensingh Med J 2021; 30:967-972. [PMID: 34605464] [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: 06/13/2023]
Abstract
Scrub typhus, caused by the bacterium- Orientia tsutsugamushi is one of the leading causes of undifferentiated treatable febrile illness in Asia pacific region. It is grossly under diagnosed in many tropical countries of South Asia including Bangladesh, due to wide range of non-specific clinical presentations, low index of suspicion among clinicians, limited awareness and lack of accurate diagnostic facilities. This cross-sectional descriptive study was conducted at Department of Microbiology, Mymensingh Medical College to diagnose scrub typhus by rapid Immunochromatographic test (ICT) as well as molecular detection of O. tsutsugamushi by Nested PCR and automated nucleotide sequencing among suspected febrile patients in Mymensingh, Bangladesh during 2019-20. Blood samples were collected from 402 febrile patients of suspected Rickettsial illness, referred from inpatient and outpatient departments of Medicine and Pediatrics, Mymensingh Medical College Hospital (MMCH). Among the enrolled 402 patients, 89 samples (22.13%) were seropositive by Immunochromatographic test (ICT) and 65 samples (16.16%) were positive for O. tsutsugamushi DNA by Nested PCR, targeting 47KDa gene. Therefore, 113/402 (28.10%) samples were positive for scrub typhus by PCR and/ or ICT. Highest number of patients was detected positive by nested PCR during the first 5-10 days of fever but only 2 cases were positive after 20 days. In case of ICT, highest positivity for only IgM (8.13%) and both antibodies (2.43%) were documented in first 5-10 days of fever, but IgG positivity was highest (41.66) in >20 days of fever. From 65 PCR positive samples, automated nucleotide sequencing was performed on 20 randomly selected samples and all were genetically confirmed to be O. tsutsugamushi.
Collapse
Affiliation(s)
- S S Nila
- Dr Sultana Shabnam Nila, Lecturer, Department of Microbiology, Mymensingh Medical College (MMC), Mymensingh, Bangladesh; E-mail:
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
28
|
Alam M, Paul SK, Haque N, Ahmad FU, Mazid R, Al Amin MM, Aziz MA, Paul A, Ahmed S, Nasreen SA, Kobayashi N. Seropositivity of Human Brucellosis among Patients with Pyrexia of Unknown Origin on Both Risk and Non-Risk Group of Individuals and Molecular Detection by Real-time PCR. Mymensingh Med J 2021; 30:936-942. [PMID: 34605459] [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: 06/13/2023]
Abstract
Brucellosis is a zoonotic disease that is one of the important infectious causes of Pyrexia of Unknown Origin (PUO). The objective of the present study was to determine the seropositivity and molecular detection of human brucellosis among the patients with pyrexia of unknown origin on both risk and non-risk group of individuals in greater Mymensingh. A total of 400 blood samples were randomly collected from pyretic patients started from September 2018 to August 2019. Questionnaires were used to collect data on both risk and non-risk group of individuals. All samples were initially screened for anti-Brucella antibodies using the Brucella-specific latex agglutination test. For accurate investigation, seropositive as well as seronegative serum samples were tested by BCSP31 Brucella genus-specific TaqMan real-time PCR. Overall 32(8%) cases were positive out of 400 samples by Brucella-specific latex agglutination test and/or BCSP31 Brucella genus-specific real-time PCR. Brucella-specific latex agglutination test documented 7% (28/400) positivity for brucellosis. 22(5.5%) samples found Brucella genus-specific real-time PCR positive out of 400 samples. Most real-time PCR positive cases were found from sero-positive samples of risk group population (15/32). Sero-negative but real-time PCR positive cases also found only from risk group population (4/32). There were 10 seropositive cases where real-time PCR was negative. In addition to Brucella-specific latex agglutination test as a screening test, Brucella genus-specific real-time PCR was performed for confirmation and also to avoid unjustified costs, drug toxicity, and masking of other potentially dangerous diseases.
Collapse
Affiliation(s)
- M Alam
- Dr Mahbubul Alam, MD Resident, Department of Microbiology, Mymensingh Medical College (MMC), Mymensingh, Bangladesh; E-mail:
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
29
|
Khanam J, Paul SK, Kobayashi N, Nasreen SA, Ahmed S, Haque N, Ahamad F, Nila SS, Hosen MA, Chowdhury CS. Early and Rapid Detection of Typhoid Fever by Nested PCR in Blood. Mymensingh Med J 2021; 30:986-990. [PMID: 34605467] [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: 06/13/2023]
Abstract
Typhoid fever caused by Salmonella typhi is one of the major health problems in developing countries including Bangladesh. Still now blood culture is gold standard method for diagnosing typhoid fever, but this method is laborious, requires several days and detection rate is low. Failure of early laboratory diagnosis often leads to increased morbidity and mortality. This study was intended to apply a nested PCR in blood for early diagnosis of typhoid fever. In this cross sectional study blood samples were collected from 200 suspected typhoid fever patients attending Mymensingh Medical College Hospital, Bangladesh. Nested Polymerase Chain Reaction (n PCR) of flagellin gene was done in all the blood samples. At the same time all blood samples were subjected to culture by lytic centrifugation method. Culture positive isolates were identified as S. typhi by biochemical tests. Among the 200 blood samples, 57 (28.5%) were positive for S. typhi on nested PCR where as blood culture was positive for S. typhi in 16 (8%) samples. Among the 57 PCR positive samples, only 15 (26.3%) samples were culture positive for S. typhi and rest 42 (73.7%) were culture negative. So, in culture negative cases PCR can be used as a rapid diagnostic test for diagnosing typhoid fever. Considering time requirement, PCR takes one day, whereas blood culture takes 3 or more days to confirm diagnosis.
Collapse
Affiliation(s)
- J Khanam
- Dr Jobyda Khanam, Lecturer (Virology), Department of Microbiology, Mymensingh Medical College, (MMC), Mymensingh, Bangladesh; E-mail:
| | | | | | | | | | | | | | | | | | | |
Collapse
|
30
|
Chowdhury CS, Khan JA, Khanam J, Nila SS, Ahmed S, Haque N, Ahamad F, Paul A, Ara H, Paul SK, Kobayashi N, Abedin S, Roy S, Nasreen SA. Detection of Biocide Resistance Genes (qacE and qacΔE1) in Pseudomonas spp Isolated from Patients with CSOM at Mymensingh Medical College Hospital, Bangladesh. Mymensingh Med J 2021; 30:954-959. [PMID: 34605462] [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: 06/13/2023]
Abstract
Biocides, including disinfectants and antiseptics, are used for a variety of topical and hard surface applications in health care facilities. Biocides play a significant role for preventing and controlling nosocomial infections. However, failures in the antimicrobial activities of biocides have been reported. The resistance mechanism to disinfectants is usually determined by genes which are related to resistance to quaternary ammonium compounds, namely, qacE, qacΔE1 that are found in Gram-negative bacteria. The aim of this study is to detect the prevalence of Biocides resistance genes, qacE and qacΔE1, in clinical isolates of Pseudomonas spp. It was carried out from March 2017 to July 2018 in the department of Microbiology, Mymensingh Medical College, Mymensingh, Bangladesh. Samples were collected from Outpatient of ENT department, MMCH. In this study, 300 clinical samples of CSOM cases were tested by the PCR method. The present study shows detection of biocide resistance genes (qacE, qacΔE1) among 87 isolated Pseudomonas spp by uniplex PCR. Among 72 clinical isolates of Pseudomonas aeruginosa 67(93.05%) had the gene qacEΔ1 and 25(34.72%) had the gene qacE. In addition other 15 Pseudomonas spp 3(20%) isolates had the qacEΔ1 gene and 2(13.33%) isolates had the qacE gene. In this study there is a marked difference in detection of the qacEΔ1 gene between the MDR and non MDR P. aeruginosa isolates. The qacEΔ1 was identified in 50 of 54(92.59%) MDR isolates and 7 of 18(38.89%) non MDR strains respectively. While gene qacE was detect 25(46.29%) MDR isolates and did not show any qacEΔ1gene in non MDR isolates. This study shows that the genes, qacE, qacΔE1 are widespread among Pseudomonas aeruginosa, they are higher in MDR strains than non MDR strains.
Collapse
Affiliation(s)
- C S Chowdhury
- Dr Chand Sultana Chowdhury, Lecturer (Virology), Department of Microbiology, MMC, Mymensingh, Bangladesh; E-mail:
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
31
|
Yajima S, Kajiwara K, Isozaki M, Kobayashi N, Ikeda R, Kobayashi T, Shinya T, Yamazaki H, Takahashi K. Estimation of RF power absorption and stray distribution at plasma breakdown based on the design of ITER ECH&CD equatorial launcher. Fusion Engineering and Design 2021. [DOI: 10.1016/j.fusengdes.2021.112470] [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: 11/25/2022]
|
32
|
Ara H, Paul SK, Kobayashi N, Nasreen SA, Ahmed S, Haque N, Ahmed F, Khanam J, Nila SS, Titir SR, Rahman S, Islam MF, Roy S, Ifa IA, Abedin S, Chowdhury CS, Paul A, Nesa M. Prevalence of ESBL Encoding Genes in Acinetobacter baumannii Strains Isolated from Various Samples of a Tertiary Care Hospital in Mymensingh. Mymensingh Med J 2021; 30:625-632. [PMID: 34226447] [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: 06/13/2023]
Abstract
The aim of this study was to find the prevalence of ESBL genes among A. baumannii isolates. In this cross sectional study, 49 Acinetobacter spp. were isolated from various clinical samples from March 2019 to February 2020 conducted in the department of Microbiology, Mymensingh Medical College, Mymensingh, Bangladesh. Clinical samples including endotracheal aspirates, wound swab/pus, urine and blood. A total of 380 samples were analyzed. Growth was obtained in 34.21% of the samples yielding 130 organisms. Out of 130 organisms, 49(37.69%) were Acinetobacter spp. Among 49 Acinetobacter spp, 39(79.59%) were Acinetobacter baumannii which was identified by PCR targeting OXA-51 like gene. Amplification of the ESBL encoding genes, namely CTX-M, TEM, SHV done by molecular technique PCR. The most antibacterial resistance was against ceftriaxone (79.48%) and lower resistance only showed in colistin (12.82%). All the isolates were sensitive to tigecycline. The distribution of ESBLs genes such as TEM 20(51.28%), CTX-M 16(41.02%) and SHV 0(0%). The high resistance to most of the antibiotics among the studied strains and also a high prevalence of TEM gene in A. baumannii strains found in our study gives alarming sign towards the treatment complexity of these strains.
Collapse
Affiliation(s)
- H Ara
- Dr Hosne Ara, MD (Thesis Part) Student, Department of Microbiology, Mymensingh Medical College (MMC), Mymensingh, Bangladesh; E-mail:
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
33
|
Watanabe S, Suzukawa M, Tashimo H, Ohshima N, Asari I, Imoto S, Kobayashi N, Tohma S, Nagase T, Ohta K. High serum cytokine levels may predict the responsiveness of patients with severe asthma to benralizumab. J Asthma 2021; 59:1604-1612. [PMID: 34121592 DOI: 10.1080/02770903.2021.1942039] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
OBJECTIVE Benralizumab, a humanized monoclonal antibody against human IL-5 receptor alpha, is effective in treating eosinophilic severe asthma. However, patients' response to benralizumab varies widely. In this study, we aimed to identify a new serum biomarker to accurately predict benralizumab response. METHODS Seventeen benralizumab-treated patients with severe eosinophilic asthma were enrolled. Blood samples were collected; pulmonary function tests were performed and questionnaires were disseminated at baseline and after 1, 2, 4, and 6 months of treatment. Blood cytokine levels were measured. Response was defined as an elevation in forced expiratory volume in 1 s of at least 10.4% from baseline after 4 months of treatment. RESULTS There were nine respondents and eight non-respondents. The non-responders showed significantly higher baseline serum interferon-γ; interleukin (IL)-4, -5, -6, -7, and -12p70; IL-17/IL-17A; IL-17E/IL-25; IL-18/IL-1F4; chemokine (C-C motif) ligand (CCL)3/macrophage inflammatory protein (MIP)-1α; CCL4/MIP-1β; CCL11/eotaxin; matrix metalloproteinase-12; tumor necrosis factor-α, and thymic stromal lymphopoietin levels. After benralizumab administration, the serum CCL3/MIP-1α and CCL11/eotaxin levels significantly and persistently increased in the responders (CCL3/MIP-1α, responders: 144.5 ± 37.9 pg/ml (baseline) vs. 210.3 ± 59.4 pg/ml (4 months), p = 0.009; non-responders: 270.8 ± 139.8 pg/ml (baseline) vs. 299.5 ± 159.9 pg/ml (4 months), p = 0.33; CCL11/eotaxin, responders: 167.9 ± 62.6 pg/ml (baseline) vs. 326.7 ± 134.4 pg/ml (4 months), p = 0.038; non-responders: 420.9 ± 323.1 pg/ml (baseline) vs. 502.1 ± 406.0 pg/ml (4 months), p = 0.30). CONCLUSION Low baseline serum inflammatory cytokine levels may be useful in predicting a good benralizumab response.Supplemental data for this article is available online at at www.tandfonline.com/ijas .
Collapse
Affiliation(s)
- Shizuka Watanabe
- Clinical Research Center, National Hospital Organization Tokyo National Hospital, Tokyo, Japan.,Department of Respiratory Medicine, University of Tokyo, Tokyo, Japan
| | - Maho Suzukawa
- Clinical Research Center, National Hospital Organization Tokyo National Hospital, Tokyo, Japan.,Asthma, Allergy and Rheumatology Center, National Hospital Organization Tokyo National Hospital, Tokyo, Japan
| | - Hiroyuki Tashimo
- Asthma, Allergy and Rheumatology Center, National Hospital Organization Tokyo National Hospital, Tokyo, Japan
| | - Nobuharu Ohshima
- Center for Pulmonary Diseases, National Hospital Organization Tokyo National Hospital, Tokyo, Japan
| | - Isao Asari
- Clinical Research Center, National Hospital Organization Tokyo National Hospital, Tokyo, Japan
| | - Sahoko Imoto
- Clinical Research Center, National Hospital Organization Tokyo National Hospital, Tokyo, Japan.,Department of Respiratory Medicine, University of Tokyo, Tokyo, Japan
| | - Nobuyuki Kobayashi
- Asthma, Allergy and Rheumatology Center, National Hospital Organization Tokyo National Hospital, Tokyo, Japan
| | - Shigeto Tohma
- Asthma, Allergy and Rheumatology Center, National Hospital Organization Tokyo National Hospital, Tokyo, Japan
| | - Takahide Nagase
- Department of Respiratory Medicine, University of Tokyo, Tokyo, Japan
| | - Ken Ohta
- Asthma, Allergy and Rheumatology Center, National Hospital Organization Tokyo National Hospital, Tokyo, Japan.,Department of Respiratory Medicine, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| |
Collapse
|
34
|
Kobayashi N, Shinagawa S, Nagata T, Tagai K, Shimada K, Ishii A, Oka N, Shigeta M, Kondo K. Blood DNA Methylation Levels in the WNT5A Gene Promoter Region: A Potential Biomarker for Agitation in Subjects with Dementia. J Alzheimers Dis 2021; 81:1601-1611. [PMID: 33967051 PMCID: PMC8293647 DOI: 10.3233/jad-210078] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Background: Behavioral and psychological symptoms of dementia (BPSD) cause a heavy burden for both patient and caregivers. These symptoms are diverse, and their mechanism is still unclear. Agitation is the most common and difficult to treat among BPSD. In recent years, while changes in DNA methylation levels have been receiving attention as a biomarker of aging and dementia, associations with BPSD have not been examined. Objective: Focusing on agitation, the objective of the present study was to identify a region where changes in DNA methylation levels are associated with agitation. Methods: Using genome-wide DNA methylation analysis data for 7 dementia subjects with agitation, 5 dementia subjects without agitation, and 4 normal elderly controls, we determined a signaling pathway in the WNT5A gene promoter region to be associated with agitation. Based on this result, we measured DNA methylation levels in this region for 26 dementia subjects with agitation and 82 dementia subjects without agitation by means of methylation-sensitive high-resolution melting (MS-HRM) analysis. Results: The WNT5A DNA methylation level in dementia subjects with agitation was significantly lower than in those without agitation (p = 0.001). Changes in WNT5A DNA methylation levels were not influenced by age, sex, body mass index, APOE ɛ4, medication, or inflammatory cytokines. Conclusion: Our results suggested an association of agitation with Wnt signaling, in particular with changes in WNT5A DNA methylation levels, which could be a potentially useful biomarker for predicting the appearance of agitation. It may contribute to the elucidation of the mechanism of BPSD.
Collapse
Affiliation(s)
- Nobuyuki Kobayashi
- Department of Virology, The Jikei University School of Medicine, Tokyo, Japan.,Department of Psychiatry, The Jikei University School of Medicine, Tokyo, Japan
| | | | - Tomoyuki Nagata
- Department of Psychiatry, The Jikei University School of Medicine, Tokyo, Japan
| | - Kenji Tagai
- Department of Psychiatry, The Jikei University School of Medicine, Tokyo, Japan
| | - Kazuya Shimada
- Department of Virology, The Jikei University School of Medicine, Tokyo, Japan
| | - Azusa Ishii
- Department of Virology, The Jikei University School of Medicine, Tokyo, Japan
| | - Naomi Oka
- Department of Virology, The Jikei University School of Medicine, Tokyo, Japan
| | - Masahiro Shigeta
- Department of Psychiatry, The Jikei University School of Medicine, Tokyo, Japan
| | - Kazuhiro Kondo
- Department of Virology, The Jikei University School of Medicine, Tokyo, Japan
| |
Collapse
|
35
|
Afrin SZ, Paul SK, Begum JA, Nasreen SA, Ahmed S, Ahmad FU, Aziz MA, Parvin R, Aung MS, Kobayashi N. Extensive genetic diversity with novel mutations in spike glycoprotein of severe acute respiratory syndrome coronavirus 2, Bangladesh in late 2020. New Microbes New Infect 2021; 41:100889. [PMID: 33936746 PMCID: PMC8065242 DOI: 10.1016/j.nmni.2021.100889] [Citation(s) in RCA: 7] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 04/20/2021] [Indexed: 02/07/2023] Open
Abstract
In Bangladesh, coronavirus disease 2019 (COVID-19) has been highly prevalent during late 2020, with nearly 500 000 confirmed cases. In the present study, the spike (S) protein of severe acute respiratory coronavirus 2 (SARS-CoV-2) circulating in Bangladesh was genetically investigated to elucidate the diversity of mutations and their prevalence. The nucleotide sequence of the S protein gene was determined for 15 SARS-CoV-2 samples collected from eight divisions in Bangladesh, and analysed for mutations compared with the reference strain (hCoV-19/Wuhan/WIV04/2019). All the SARS-CoV-2 S genes were assigned to B.1 lineage in G clade, and individual S proteins had 1-25 mutations causing amino acid substitution/deletion. A total of 133 mutations were detected in 15 samples, with D614G being present in all the samples; 53 were novel mutations as of January 2021. On the receptor-binding domain, 21 substitutions including ten novel mutations were identified. Other novel mutations were located on the N-terminal domain (S1 subunit) and dispersed sites in the S2 subunit, including two substitutions that remove potential N-glycosylation sites. A P681R substitution adjacent to the furin cleavage site was detected in one sample. All the mutations detected were located on positions that are functionally linked to host transition, antigenic drift, host surface receptor binding or antibody recognition sites, and viral oligomerization interfaces, which presumably related to viral transmission and pathogenic capacity.
Collapse
Affiliation(s)
- S Z Afrin
- Department of Microbiology, Mymensingh Medical College, Mymensingh, Bangladesh
| | - S K Paul
- Department of Microbiology, Netrokona Medical College, Netrokona, Bangladesh
| | - J A Begum
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - S A Nasreen
- Department of Microbiology, Mymensingh Medical College, Mymensingh, Bangladesh
| | - S Ahmed
- Department of Microbiology, Mymensingh Medical College, Mymensingh, Bangladesh
| | - F U Ahmad
- Department of Microbiology, TMSS Medical College, Bogura, Bangladesh
| | - M A Aziz
- Department of Microbiology, Rangpur Medical College, Rangpur, Bangladesh
| | - R Parvin
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - M S Aung
- Department of Hygiene, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - N Kobayashi
- Department of Hygiene, Sapporo Medical University School of Medicine, Sapporo, Japan
| |
Collapse
|
36
|
Khanam J, Paul SK, Kobayashi N, Nasreen SA, Ahmed S, Haque N, Ahamad F, Nila SS, Titir SR, Ara H, Rahman S, Roy S, Abedin S, Hosen MA, Jannat H, Rashed F. Detection of Antimicrobial Resistance Pattern and ESBL Production among Clinical Isolates of Salmonella Species in Mymensingh, Bangladesh. Mymensingh Med J 2021; 30:329-336. [PMID: 33830110] [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: 06/12/2023]
Abstract
The occurrence of antimicrobial resistance in Salmonella enterica serovars (both typhoidal and non-typhoidal Salmonellae) is a major public health problem especially in developing countries, which have been associated with treatment failures. Therefore, the study was undertaken to determine the current antimicrobial resistance pattern and extended spectrum β-lactamase (ESBL) production among clinical isolates of Salmonella spp. during 2019-2020 in Mymensingh, Bangladesh. In this cross sectional study, 36 Salmonella enterica isolates were obtained from blood and stool culture of suspected 200 enteric fever and 100 gastroenteritis patients attending at Mymensingh Medical College Hospital, Mymensingh, Bangladesh. Isolated Salmonella species were identified by biochemical tests and Polymerase Chain Reaction (PCR). Disk diffusion test was performed by modified Kirby Bauer method. Minimum Inhibitory Concentration (MIC) of ceftriaxone was detected by agar dilution method. Double disk synergy test was used as a screening test for ESBL production. PCR was done for detection of blaTEM, blaSHV and blaCTX-MU genes. The isolates showed 25% resistance to Ceftriaxone and 58.3% to Azithromycin. The highest sensitivity rates were 88.9% to Meropenem and 83.3% to Amikacin. Whereas 6(16.7%) isolates were Multi Drug Resistant (MDR). Eight (8) isolates were confirmed as ESBL producer by DDST. The marked increase in MIC was observed between 8->512μg/ml to ceftriaxone. blaTEM, blaSHV and blaCTX-MU genes were detected in 3, 5 and 8 isolates respectively. In conclusion, the current study observed, higher level of resistance to ceftriaxone and azithromycin. At the same times 22.2% isolates showed ESBL production, which is a cause for concern as it may lead to treatment failure. On the other hand the study also showed the re-emergence of chloramphenicol and Sulfamethoxazole-Trimethoprim sensitivity.
Collapse
Affiliation(s)
- J Khanam
- Dr Jobyda Khanam, Lecturer, Department of Microbiology, Mymensingh Medical College (MMC), Mymensingh, Bangladesh; E-mail:
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
37
|
Yang ZH, Kubota Y, Corsi A, Yoshida K, Sun XX, Li JG, Kimura M, Michel N, Ogata K, Yuan CX, Yuan Q, Authelet G, Baba H, Caesar C, Calvet D, Delbart A, Dozono M, Feng J, Flavigny F, Gheller JM, Gibelin J, Giganon A, Gillibert A, Hasegawa K, Isobe T, Kanaya Y, Kawakami S, Kim D, Kiyokawa Y, Kobayashi M, Kobayashi N, Kobayashi T, Kondo Y, Korkulu Z, Koyama S, Lapoux V, Maeda Y, Marqués FM, Motobayashi T, Miyazaki T, Nakamura T, Nakatsuka N, Nishio Y, Obertelli A, Ohkura A, Orr NA, Ota S, Otsu H, Ozaki T, Panin V, Paschalis S, Pollacco EC, Reichert S, Roussé JY, Saito AT, Sakaguchi S, Sako M, Santamaria C, Sasano M, Sato H, Shikata M, Shimizu Y, Shindo Y, Stuhl L, Sumikama T, Sun YL, Tabata M, Togano Y, Tsubota J, Xu FR, Yasuda J, Yoneda K, Zenihiro J, Zhou SG, Zuo W, Uesaka T. Quasifree Neutron Knockout Reaction Reveals a Small s-Orbital Component in the Borromean Nucleus ^{17}B. Phys Rev Lett 2021; 126:082501. [PMID: 33709737 DOI: 10.1103/physrevlett.126.082501] [Citation(s) in RCA: 2] [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: 10/06/2020] [Revised: 12/07/2020] [Accepted: 01/27/2021] [Indexed: 06/12/2023]
Abstract
A kinematically complete quasifree (p,pn) experiment in inverse kinematics was performed to study the structure of the Borromean nucleus ^{17}B, which had long been considered to have a neutron halo. By analyzing the momentum distributions and exclusive cross sections, we obtained the spectroscopic factors for 1s_{1/2} and 0d_{5/2} orbitals, and a surprisingly small percentage of 9(2)% was determined for 1s_{1/2}. Our finding of such a small 1s_{1/2} component and the halo features reported in prior experiments can be explained by the deformed relativistic Hartree-Bogoliubov theory in continuum, revealing a definite but not dominant neutron halo in ^{17}B. The present work gives the smallest s- or p-orbital component among known nuclei exhibiting halo features and implies that the dominant occupation of s or p orbitals is not a prerequisite for the occurrence of a neutron halo.
Collapse
Affiliation(s)
- Z H Yang
- Research Center for Nuclear Physics (RCNP), Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - Y Kubota
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- Center for Nuclear Study, The University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
| | - A Corsi
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - K Yoshida
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - X-X Sun
- CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - J G Li
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - M Kimura
- Research Center for Nuclear Physics (RCNP), Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
- Department of Physics, Hokkaido University, Sapporo 060-0810, Japan
- Nuclear Reaction Data Centre, Hokkaido University, Sapporo 060-0810, Japan
| | - N Michel
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - K Ogata
- Research Center for Nuclear Physics (RCNP), Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
- Department of Physics, Osaka City University, Osaka 558-8585, Japan
| | - C X Yuan
- Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-Sen University, Zhuhai, 519082, Guangdong, China
| | - Q Yuan
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - G Authelet
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - H Baba
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - C Caesar
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - D Calvet
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - A Delbart
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - M Dozono
- Center for Nuclear Study, The University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
| | - J Feng
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - F Flavigny
- IPN Orsay, Université Paris Sud, IN2P3-CNRS, F-91406 Orsay Cedex, France
| | - J-M Gheller
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - J Gibelin
- LPC Caen, ENSICAEN, Université de Caen Normandie, CNRS/IN2P3, F-14050 Caen Cedex, France
| | - A Giganon
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - A Gillibert
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - K Hasegawa
- Department of Physics, Tohoku University, Aramaki Aza-Aoba 6-3, Aoba, Sendai, Miyagi 980-8578, Japan
| | - T Isobe
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - Y Kanaya
- Department of Applied Physics, University of Miyazaki, Gakuen-Kibanadai-Nishi 1-1, Miyazaki 889-2192, Japan
| | - S Kawakami
- Department of Applied Physics, University of Miyazaki, Gakuen-Kibanadai-Nishi 1-1, Miyazaki 889-2192, Japan
| | - D Kim
- Center for Exotic Nuclear Studies, Institute for Basic Science, Daejeon 34126, Republic of Korea
| | - Y Kiyokawa
- Center for Nuclear Study, The University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
| | - M Kobayashi
- Center for Nuclear Study, The University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
| | - N Kobayashi
- Department of Physics, The University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
| | - T Kobayashi
- Department of Physics, Tohoku University, Aramaki Aza-Aoba 6-3, Aoba, Sendai, Miyagi 980-8578, Japan
| | - Y Kondo
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - Z Korkulu
- Center for Exotic Nuclear Studies, Institute for Basic Science, Daejeon 34126, Republic of Korea
- Institute for Nuclear Research, Hungarian Academy of Sciences (MTA Atomki), P.O. Box 51, H-4001 Debrecen, Hungary
| | - S Koyama
- Department of Physics, The University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
| | - V Lapoux
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - Y Maeda
- Department of Applied Physics, University of Miyazaki, Gakuen-Kibanadai-Nishi 1-1, Miyazaki 889-2192, Japan
| | - F M Marqués
- LPC Caen, ENSICAEN, Université de Caen Normandie, CNRS/IN2P3, F-14050 Caen Cedex, France
| | - T Motobayashi
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - T Miyazaki
- Department of Physics, The University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
| | - T Nakamura
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - N Nakatsuka
- Department of Physics, Kyoto University, Kitashirakawa, Sakyo, Kyoto 606-8502, Japan
| | - Y Nishio
- Department of Physics, Kyushu University, Nishi, Fukuoka 819-0395, Japan
| | - A Obertelli
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - A Ohkura
- Department of Physics, Kyushu University, Nishi, Fukuoka 819-0395, Japan
| | - N A Orr
- LPC Caen, ENSICAEN, Université de Caen Normandie, CNRS/IN2P3, F-14050 Caen Cedex, France
| | - S Ota
- Center for Nuclear Study, The University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
| | - H Otsu
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - T Ozaki
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - V Panin
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - S Paschalis
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - E C Pollacco
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - S Reichert
- Physik Department, Technische Universität München, D-85748 Garching, Germany
| | - J-Y Roussé
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - A T Saito
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - S Sakaguchi
- Department of Physics, Kyushu University, Nishi, Fukuoka 819-0395, Japan
| | - M Sako
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - C Santamaria
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - M Sasano
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - H Sato
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - M Shikata
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - Y Shimizu
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - Y Shindo
- Department of Physics, Kyushu University, Nishi, Fukuoka 819-0395, Japan
| | - L Stuhl
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- Center for Exotic Nuclear Studies, Institute for Basic Science, Daejeon 34126, Republic of Korea
| | - T Sumikama
- Department of Physics, Tohoku University, Aramaki Aza-Aoba 6-3, Aoba, Sendai, Miyagi 980-8578, Japan
| | - Y L Sun
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - M Tabata
- Department of Physics, Kyushu University, Nishi, Fukuoka 819-0395, Japan
| | - Y Togano
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
- Department of Physics, Rikkyo University, 3-34-1, Nishi-Ikebukuro, Toshima, Tokyo 171-8501, Japan
| | - J Tsubota
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - F R Xu
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - J Yasuda
- Department of Physics, Kyushu University, Nishi, Fukuoka 819-0395, Japan
| | - K Yoneda
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - J Zenihiro
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - S-G Zhou
- CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - W Zuo
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - T Uesaka
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- Cluster for Pioneering Research, RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| |
Collapse
|
38
|
Ogawa A, Watanabe T, Natsume T, Okura E, Saito S, Kato S, Nakayama Y, Furukawa S, Yamaguchi T, Kosho T, Uehara T, Kobayashi N, Agematsu K, Nakazawa Y, Shigemura T. Early-Onset Inflammatory Bowel Disease Caused by Mutations in the X-Linked Gene IL2RG. J Investig Allergol Clin Immunol 2021; 31:69-71. [PMID: 32490820 DOI: 10.18176/jiaci.0523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- A Ogawa
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Japan
| | - T Watanabe
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Japan
| | - T Natsume
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Japan
| | - E Okura
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Japan
| | - S Saito
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Japan
| | - S Kato
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Japan
| | - Y Nakayama
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Japan
| | - S Furukawa
- Department of Laboratory Medicine, Shinshu University Hospital, Matsumoto, Japan
| | - T Yamaguchi
- Department of Medical Genetics, Shinshu University School of Medicine, Matsumoto, Japan.,Center for Medical Genetics, Shinshu University Hospital, Matsumoto, Japan
| | - T Kosho
- Department of Medical Genetics, Shinshu University School of Medicine, Matsumoto, Japan.,Center for Medical Genetics, Shinshu University Hospital, Matsumoto, Japan
| | - T Uehara
- Department of Laboratory Medicine, Shinshu University Hospital, Matsumoto, Japan
| | - N Kobayashi
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Japan
| | - K Agematsu
- Department of Molecular and Cellular Immunology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Y Nakazawa
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Japan
| | - T Shigemura
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Japan
| |
Collapse
|
39
|
Aung MS, Hlaing MS, San N, Aung MT, Mar TT, Kobayashi N. Clonal diversity of Acinetobacter baumannii clinical isolates in Myanmar: identification of novel ST1407 harbouring blaNDM-1. New Microbes New Infect 2021; 40:100847. [PMID: 33732472 PMCID: PMC7944022 DOI: 10.1016/j.nmni.2021.100847] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 01/22/2021] [Accepted: 02/02/2021] [Indexed: 01/22/2023] Open
Abstract
Recent Acinetobacter baumannii clinical isolates in a teaching hospital in Myanmar comprised three major sequence types (ST2, ST16 and ST23) and two sporadic STs, showing a high resistance rate to carbapenem associated with blaOXA-23 . The NDM-1 encoding gene was identified in only one isolate exhibiting novel ST1407 (a triple-locus variant of ST16).
Collapse
Affiliation(s)
- M S Aung
- Sapporo Medical University School of Medicine, Sapporo, Japan
| | - M S Hlaing
- University of Medicine 2, Yangon, Myanmar
| | - N San
- University of Medicine 2, Yangon, Myanmar
| | - M T Aung
- North Okkalapa General and Teaching Hospital, Yangon, Myanmar
| | - T T Mar
- University of Medicine 1, Yangon, Myanmar
| | - N Kobayashi
- Sapporo Medical University School of Medicine, Sapporo, Japan
| |
Collapse
|
40
|
Kobayashi N, Hou F, Tsunekawa A, Yan T, Tegegne F, Tassew A, Mekuriaw Y, Mekuriaw S, Hunegnaw B, Mekonnen W, Ichinohe T. Laser methane detector-based quantification of methane emissions from indoor-fed Fogera dairy cows. Anim Biosci 2021; 34:1415-1424. [PMID: 33561924 PMCID: PMC8255885 DOI: 10.5713/ab.20.0739] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 12/14/2020] [Indexed: 11/27/2022] Open
Abstract
Objective Portable laser methane detectors (LMDs) may be an economical means of estimating CH4 emissions from ruminants. We validated an LMD-based approach and then used that approach to evaluate CH4 emissions from indigenous dairy cows in a dryland area of Ethiopia. Methods First, we validated our LMD-based approach in Simmental crossbred beef cattle (n = 2) housed in respiration chambers and fed either a high- or low-concentrate diet. From the results of the validation, we constructed an estimation equation to determine CH4 emissions from LMD CH4 concentrations. Next, we used our validated LMD approach to examine CH4 emissions in Fogera dairy cows grazed for 8 h/d (GG, n = 4), fed indoors on natural-grassland hay (CG1, n = 4), or fed indoors on Napier-grass (Pennisetum purpureum) hay (CG2, n = 4). All the cows were supplemented with concentrate feed. Results The exhaled CH4 concentrations measured by LMD were linearly correlated with the CH4 emissions determined by infrared-absorption-based gas analyzer (r2 = 0.55). The estimation equation used to determine CH4 emissions (y, mg/min) from LMD CH4 concentrations (x, ppm m) was y = 0.4259x+38.61. Daily CH4 emissions of Fogera cows estimated by using the equation did not differ among the three groups; however, a numerically greater milk yield was obtained from the CG2 cows than from the GG cows, suggesting that Napier-grass hay might be better than natural-grassland hay for indoor feeding. The CG1 cows had higher CH4 emissions per feed intake than the other groups, without significant increases in milk yield and body-weight gain, suggesting that natural-grassland hay cannot be recommended for indoor-fed cows. Conclusion These findings demonstrate the potential of using LMDs to valuate feeding regimens rapidly and economically for dairy cows in areas under financial constraint, while taking CH4 emissions into consideration.
Collapse
Affiliation(s)
| | - Fujiang Hou
- State Key Laboratory of Grassland Agroecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Atsushi Tsunekawa
- Arid Land Research Center, Tottori University, Tottori 680-0001, Japan
| | - Tianhai Yan
- Agri-Food and Biosciences Institute, Hillsborough, County Down BT26 6DR, UK
| | | | - Asaminew Tassew
- College of Agriculture and Environmental Sciences, Bahir Dar University, Bahir Dar 6000, Ethiopia
| | - Yeshambel Mekuriaw
- College of Agriculture and Environmental Sciences, Bahir Dar University, Bahir Dar 6000, Ethiopia
| | - Shigdaf Mekuriaw
- The United Graduate School of Agricultural Sciences, Tottori University, Tottori 680- 8550, Japan.,Andassa Livestock Research Center, Amhara Region Agricultural Research Institute, Bahir Dar 6000, Ethiopia
| | - Beyadglign Hunegnaw
- Andassa Livestock Research Center, Amhara Region Agricultural Research Institute, Bahir Dar 6000, Ethiopia
| | - Wondimeneh Mekonnen
- Andassa Livestock Research Center, Amhara Region Agricultural Research Institute, Bahir Dar 6000, Ethiopia
| | - Toshiyoshi Ichinohe
- Faculty of Life and Environmental Science, Shimane University, Matsue 690-8504, Japan
| |
Collapse
|
41
|
Tanaka J, Yang Z, Typel S, Adachi S, Bai S, van Beek P, Beaumel D, Fujikawa Y, Han J, Heil S, Huang S, Inoue A, Jiang Y, Knösel M, Kobayashi N, Kubota Y, Liu W, Lou J, Maeda Y, Matsuda Y, Miki K, Nakamura S, Ogata K, Panin V, Scheit H, Schindler F, Schrock P, Symochko D, Tamii A, Uesaka T, Wagner V, Yoshida K, Zenihiro J, Aumann T. Formation of α clusters in dilute neutron-rich matter. Science 2021; 371:260-264. [PMID: 33446551 DOI: 10.1126/science.abe4688] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 11/30/2020] [Indexed: 11/02/2022]
Abstract
The surface of neutron-rich heavy nuclei, with a neutron skin created by excess neutrons, provides an important terrestrial model system to study dilute neutron-rich matter. By using quasi-free α cluster-knockout reactions, we obtained direct experimental evidence for the formation of α clusters at the surface of neutron-rich tin isotopes. The observed monotonous decrease of the reaction cross sections with increasing mass number, in excellent agreement with the theoretical prediction, implies a tight interplay between α-cluster formation and the neutron skin. This result, in turn, calls for a revision of the correlation between the neutron-skin thickness and the density dependence of the symmetry energy, which is essential for understanding neutron stars. Our result also provides a natural explanation for the origin of α particles in α decay.
Collapse
Affiliation(s)
- Junki Tanaka
- Technische Universität Darmstadt, Fachbereich Physik, Institut für Kernphysik, Schlossgartenstraße 9, 64289 Darmstadt, Germany. .,GSI Helmholtz Center for Heavy Ion Research GmbH, Planckstraße 1, 64291 Darmstadt, Germany.,RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako 351-0198, Japan
| | - Zaihong Yang
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako 351-0198, Japan. .,Research Center for Nuclear Physics, Osaka University, 10-1 Mihogaoka, Ibaraki 567-0047, Japan
| | - Stefan Typel
- Technische Universität Darmstadt, Fachbereich Physik, Institut für Kernphysik, Schlossgartenstraße 9, 64289 Darmstadt, Germany.,GSI Helmholtz Center for Heavy Ion Research GmbH, Planckstraße 1, 64291 Darmstadt, Germany
| | - Satoshi Adachi
- Research Center for Nuclear Physics, Osaka University, 10-1 Mihogaoka, Ibaraki 567-0047, Japan
| | - Shiwei Bai
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - Patrik van Beek
- Technische Universität Darmstadt, Fachbereich Physik, Institut für Kernphysik, Schlossgartenstraße 9, 64289 Darmstadt, Germany
| | - Didier Beaumel
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - Yuki Fujikawa
- Department of Physics, Kyoto University, Kitashirakawa-Oiwake, Sakyo, Kyoto 606-8502, Japan
| | - Jiaxing Han
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - Sebastian Heil
- Technische Universität Darmstadt, Fachbereich Physik, Institut für Kernphysik, Schlossgartenstraße 9, 64289 Darmstadt, Germany
| | - Siwei Huang
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - Azusa Inoue
- Research Center for Nuclear Physics, Osaka University, 10-1 Mihogaoka, Ibaraki 567-0047, Japan
| | - Ying Jiang
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - Marco Knösel
- Technische Universität Darmstadt, Fachbereich Physik, Institut für Kernphysik, Schlossgartenstraße 9, 64289 Darmstadt, Germany
| | - Nobuyuki Kobayashi
- Research Center for Nuclear Physics, Osaka University, 10-1 Mihogaoka, Ibaraki 567-0047, Japan
| | - Yuki Kubota
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako 351-0198, Japan
| | - Wei Liu
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - Jianling Lou
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - Yukie Maeda
- Faculty of Engineering, University of Miyazaki, 1-1 Gakuen, Kibanadai-nishi, Miyazaki 889-2192, Japan
| | - Yohei Matsuda
- Cyclotron and Radioisotope Center, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Kenjiro Miki
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - Shoken Nakamura
- Research Center for Nuclear Physics, Osaka University, 10-1 Mihogaoka, Ibaraki 567-0047, Japan
| | - Kazuyuki Ogata
- Research Center for Nuclear Physics, Osaka University, 10-1 Mihogaoka, Ibaraki 567-0047, Japan.,Department of Physics, Osaka City University, Osaka 558-8585, Japan
| | - Valerii Panin
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako 351-0198, Japan
| | - Heiko Scheit
- Technische Universität Darmstadt, Fachbereich Physik, Institut für Kernphysik, Schlossgartenstraße 9, 64289 Darmstadt, Germany
| | - Fabia Schindler
- Technische Universität Darmstadt, Fachbereich Physik, Institut für Kernphysik, Schlossgartenstraße 9, 64289 Darmstadt, Germany
| | - Philipp Schrock
- Center for Nuclear Study, The University of Tokyo, 2-1 Hirosawa, Wako 351-0198, Japan
| | - Dmytro Symochko
- Technische Universität Darmstadt, Fachbereich Physik, Institut für Kernphysik, Schlossgartenstraße 9, 64289 Darmstadt, Germany
| | - Atsushi Tamii
- Research Center for Nuclear Physics, Osaka University, 10-1 Mihogaoka, Ibaraki 567-0047, Japan
| | - Tomohiro Uesaka
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako 351-0198, Japan
| | - Vadim Wagner
- Technische Universität Darmstadt, Fachbereich Physik, Institut für Kernphysik, Schlossgartenstraße 9, 64289 Darmstadt, Germany
| | - Kazuki Yoshida
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - Juzo Zenihiro
- RIKEN Nishina Center for Accelerator-Based Science, 2-1 Hirosawa, Wako 351-0198, Japan.,Department of Physics, Kyoto University, Kitashirakawa-Oiwake, Sakyo, Kyoto 606-8502, Japan
| | - Thomas Aumann
- Technische Universität Darmstadt, Fachbereich Physik, Institut für Kernphysik, Schlossgartenstraße 9, 64289 Darmstadt, Germany.,GSI Helmholtz Center for Heavy Ion Research GmbH, Planckstraße 1, 64291 Darmstadt, Germany.,Helmholtz Research Academy Hesse for FAIR, Schlossgartenstraße 9, 64289 Darmstadt, Germany
| |
Collapse
|
42
|
Kobayashi N, Toyama H, Kubo R, Matsuda Y, Okada Y, Ejima Y, Yamauchi M. Bicarbonate in Arteries Measured Preoperatively for Cadaveric Single-lung Transplantation is Related to Intraoperative Extra-Corporeal Membrane Oxygenation Use: A Retrospective Preliminary Study. Int J Organ Transplant Med 2021; 12:37-42. [PMID: 36570358 PMCID: PMC9758997] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Background There are no known predictors of extracorporeal membrane oxygenation (ECMO) induction for single lung transplantation. Objective The purpose of the present study was to clarify the relationship between variables and ECMO requirements in single lung transplantation. Methods This study included adult patients who underwent cadaveric single lung transplantation between 2010 and 2019. After general anesthesia, the transplanted lungs were ventilated in all cases. The analysis included 38 patients in the ECMO required (RQ) group and 12 patients in the ECMO non-required (FR) group. Comparisons were made between the two groups for data affecting ECMO implementation, and data that were significantly different were subjected to multivariate analysis. Results Prior to anesthesia, the bicarbonate (HCO3-) value of the FR group was lower than that of the RQ group (24.6±2.7 vs. 29.7±5.3 mmol/L, p=0.005). Multivariate analysis showed that the cut-off bicarbonate value was 29.6. The area under the receiver operating characteristic curve (AUROC) of the model was 0.869 (R2: 0.331), with a sensitivity of 79% and a specificity of 88%. The odds ratio was 1.63 for every unit increase in the bicarbonate value (95%CI: 1.11-2.39, p<0.001). Further, the FR group had higher arterial blood pressure (mean: 79.0±11.5 vs. 68.9±8.3 mmHg, p=0.030), less blood loss (432±385 vs. 1,623±1,997 g, p<0.001), shorter operation time (417±44 vs. 543±111 min, p<0.001), and shorter ICU stay (11±9 vs. 25±38 days, p=0.039). Conclusion Preoperative evaluation of bicarbonate could predict the need for ECMO for single lung transplantation.
Collapse
Affiliation(s)
- N. Kobayashi
- Department of Anesthesiology and Perioperative Medicine, School of Medicine, Tohoku University, Japan,Correspondence: Naoya Kobayashi, MD, PhD, Department of Anesthesiology, Tohoku University Hospital 1-1 Seiryomachi, Aoba, Sendai, Japan, 980-857
| | - H. Toyama
- Department of Anesthesiology and Perioperative Medicine, School of Medicine, Tohoku University, Japan
| | - R. Kubo
- Department of Anesthesiology and Perioperative Medicine, School of Medicine, Tohoku University, Japan
| | - Y. Matsuda
- Department of Thoracic Surgery, Institute of Development, Aging and Cancer, Tohoku University, Japan
| | - Y. Okada
- Department of Thoracic Surgery, Institute of Development, Aging and Cancer, Tohoku University, Japan
| | - Y. Ejima
- Department of Surgical Center and Supply, Tohoku University, Japan
| | - M. Yamauchi
- Department of Anesthesiology and Perioperative Medicine, School of Medicine, Tohoku University, Japan
| |
Collapse
|
43
|
Kubota Y, Corsi A, Authelet G, Baba H, Caesar C, Calvet D, Delbart A, Dozono M, Feng J, Flavigny F, Gheller JM, Gibelin J, Giganon A, Gillibert A, Hasegawa K, Isobe T, Kanaya Y, Kawakami S, Kim D, Kikuchi Y, Kiyokawa Y, Kobayashi M, Kobayashi N, Kobayashi T, Kondo Y, Korkulu Z, Koyama S, Lapoux V, Maeda Y, Marqués FM, Motobayashi T, Miyazaki T, Nakamura T, Nakatsuka N, Nishio Y, Obertelli A, Ogata K, Ohkura A, Orr NA, Ota S, Otsu H, Ozaki T, Panin V, Paschalis S, Pollacco EC, Reichert S, Roussé JY, Saito AT, Sakaguchi S, Sako M, Santamaria C, Sasano M, Sato H, Shikata M, Shimizu Y, Shindo Y, Stuhl L, Sumikama T, Sun YL, Tabata M, Togano Y, Tsubota J, Yang ZH, Yasuda J, Yoneda K, Zenihiro J, Uesaka T. Surface Localization of the Dineutron in ^{11}Li. Phys Rev Lett 2020; 125:252501. [PMID: 33416401 DOI: 10.1103/physrevlett.125.252501] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 06/28/2020] [Accepted: 10/08/2020] [Indexed: 06/12/2023]
Abstract
The formation of a dineutron in the ^{11}Li nucleus is found to be localized to the surface region. The experiment measured the intrinsic momentum of the struck neutron in ^{11}Li via the (p,pn) knockout reaction at 246 MeV/nucleon. The correlation angle between the two neutrons is, for the first time, measured as a function of the intrinsic neutron momentum. A comparison with reaction calculations reveals the localization of the dineutron at r∼3.6 fm. The results also support the density dependence of dineutron formation as deduced from Hartree-Fock-Bogoliubov calculations for nuclear matter.
Collapse
Affiliation(s)
- Y Kubota
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- Center for Nuclear Study, University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
| | - A Corsi
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - G Authelet
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - H Baba
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - C Caesar
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - D Calvet
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - A Delbart
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - M Dozono
- Center for Nuclear Study, University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
| | - J Feng
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - F Flavigny
- IPN Orsay, Université Paris Sud, IN2P3-CNRS, F-91406 Orsay Cedex, France
| | - J-M Gheller
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - J Gibelin
- LPC Caen, ENSICAEN, Université de Caen Normandie, CNRS/IN2P3, F-14050 Caen Cedex, France
| | - A Giganon
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - A Gillibert
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - K Hasegawa
- Department of Physics, Tohoku University, Aramaki Aza-Aoba 6-3, Aoba, Sendai, Miyagi 980-8578, Japan
| | - T Isobe
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - Y Kanaya
- Department of Applied Physics, University of Miyazaki, Gakuen-Kibanadai-Nishi 1-1, Miyazaki 889-2192, Japan
| | - S Kawakami
- Department of Applied Physics, University of Miyazaki, Gakuen-Kibanadai-Nishi 1-1, Miyazaki 889-2192, Japan
| | - D Kim
- Center for Exotic Nuclear Studies, Institute for Basic Science (IBS), Daejeon 34126, Korea
| | - Y Kikuchi
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- Tokuyama College, National Institute of Technology, Yamaguchi 745-8585, Japan
- Department of Physics, Osaka City University, Osaka 558-8585, Japan
| | - Y Kiyokawa
- Center for Nuclear Study, University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
| | - M Kobayashi
- Center for Nuclear Study, University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
| | - N Kobayashi
- Department of Physics, University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
| | - T Kobayashi
- Department of Physics, Tohoku University, Aramaki Aza-Aoba 6-3, Aoba, Sendai, Miyagi 980-8578, Japan
| | - Y Kondo
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - Z Korkulu
- Center for Exotic Nuclear Studies, Institute for Basic Science (IBS), Daejeon 34126, Korea
- Institute for Nuclear Research, Hungarian Academy of Sciences (MTA Atomki), P.O. Box 51, H-4001 Debrecen, Hungary
| | - S Koyama
- Department of Physics, University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
| | - V Lapoux
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - Y Maeda
- Department of Applied Physics, University of Miyazaki, Gakuen-Kibanadai-Nishi 1-1, Miyazaki 889-2192, Japan
| | - F M Marqués
- LPC Caen, ENSICAEN, Université de Caen Normandie, CNRS/IN2P3, F-14050 Caen Cedex, France
| | - T Motobayashi
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - T Miyazaki
- Department of Physics, University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
| | - T Nakamura
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - N Nakatsuka
- Department of Physics, Kyoto University, Kitashirakawa, Sakyo, Kyoto 606-8502, Japan
| | - Y Nishio
- Department of Physics, Kyushu University, Nishi, Fukuoka 819-0395, Japan
| | - A Obertelli
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - K Ogata
- Department of Physics, Osaka City University, Osaka 558-8585, Japan
- Research Center for Nuclear Physics, Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - A Ohkura
- Department of Physics, Kyushu University, Nishi, Fukuoka 819-0395, Japan
| | - N A Orr
- LPC Caen, ENSICAEN, Université de Caen Normandie, CNRS/IN2P3, F-14050 Caen Cedex, France
| | - S Ota
- Center for Nuclear Study, University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
| | - H Otsu
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - T Ozaki
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - V Panin
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - S Paschalis
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - E C Pollacco
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - S Reichert
- Physik Department, Technische Universität München, D-85748 Garching, Germany
| | - J-Y Roussé
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - A T Saito
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - S Sakaguchi
- Department of Physics, Kyushu University, Nishi, Fukuoka 819-0395, Japan
| | - M Sako
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - C Santamaria
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - M Sasano
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - H Sato
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - M Shikata
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - Y Shimizu
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - Y Shindo
- Department of Physics, Kyushu University, Nishi, Fukuoka 819-0395, Japan
| | - L Stuhl
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- Center for Exotic Nuclear Studies, Institute for Basic Science (IBS), Daejeon 34126, Korea
| | - T Sumikama
- Department of Physics, Tohoku University, Aramaki Aza-Aoba 6-3, Aoba, Sendai, Miyagi 980-8578, Japan
| | - Y L Sun
- Département de Physique Nucléaire, IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - M Tabata
- Department of Physics, Kyushu University, Nishi, Fukuoka 819-0395, Japan
| | - Y Togano
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - J Tsubota
- Department of Physics, Tokyo Institute of Technology, 2-12-1 O-Okayama, Meguro, Tokyo 152-8551, Japan
| | - Z H Yang
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - J Yasuda
- Department of Physics, Kyushu University, Nishi, Fukuoka 819-0395, Japan
| | - K Yoneda
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - J Zenihiro
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| | - T Uesaka
- RIKEN Nishina Center, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
- Cluster for Pioneering Research, RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
| |
Collapse
|
44
|
Tanimura C, Aoto H, Kobayashi N, Majbauddin A, Morita T, Otani S, Inoue K, Tokushima Y, Fukada M, Hanaki K, Sakai C, Okura T, Kageyama S, Kurozawa Y, Flores R, Raymundo R. Effects of a Self-efficacy Theory-Based Training Program for Peers of Patients with Type 2 Diabetes. Yonago Acta Med 2020; 63:282-293. [PMID: 33253342 DOI: 10.33160/yam.2020.11.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 07/22/2020] [Accepted: 09/02/2020] [Indexed: 12/28/2022]
Abstract
Background Training peer leaders to deliver patient education is expected to be a low-cost approach to providing healthcare in urban-poor areas affected by a shortage of healthcare professionals. The purpose of this study was to examine the effects of a training program on the self-efficacy and knowledge of peer leaders with type 2 diabetes. Methods A single-group longitudinal survey with baseline, intervention, and follow-up periods was conducted at a diabetes clinic in a small municipality in Metro Manila, Philippines. The intervention, a self-efficacy theory-based training program for peer-leaders of diabetic patients conducted in August 2017, comprised hands-on learning, demonstrations, quizzes, role-playing, group sharing, physical exercise, and a buffet lunch. The primary outcome was participants' self-efficacy for management of their diabetes. Secondary outcomes were participants' knowledge of diabetes and levels of emotional distress, motivation, and confidence for guiding their peers, satisfaction with the training program, hemoglobin A1c, and quality of life. Results At 12 and 18 months after the intervention, participants' knowledge of diabetes was significantly increased compared with baseline (both P < 0.05). At earlier time points, an increasing, but not significant, trend was observed. The change in knowledge of diabetes from baseline to 18 months after intervention tended to be positively correlated with the change in self-efficacy (r = 0.594, P = 0.054). No significant differences were observed for any of the other outcomes, although the descriptive statistics showed an increasing trend for all of the outcomes except motivation. Conclusion The training program significantly improved participants' knowledge of diabetes at 12 and 18 months after the training programs compared with baseline. A positive correlation between the changes in the levels of knowledge and self-efficacy suggested that the observed improvement of self-efficacy was facilitated by the improvement of knowledge of diabetes.
Collapse
Affiliation(s)
- Chika Tanimura
- School of Health Science, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan
| | - Haruka Aoto
- School of Health Science, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan
| | | | - Abir Majbauddin
- Arid Land Research Center, Tottori University, Tottori 680-0001, Japan
| | - Tetsuji Morita
- Department of Rehabilitation Daisen Rehabilitation Hospital, Hoki-cho 689-4102, Japan
| | - Shinji Otani
- International Platform for Dryland Research and Education, Tottori University, Tottori 680-0001, Japan
| | - Kazuoki Inoue
- Department of Community-based Family Medicine, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan
| | - Yasuko Tokushima
- School of Health Science, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan
| | - Mika Fukada
- School of Health Science, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan
| | - Keiichi Hanaki
- School of Health Science, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan
| | - Chieko Sakai
- School of Health Science, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan
| | - Tsuyoshi Okura
- Division of Cardiovascular Medicine, Endocrinology and Metabolism, Department of Internal Medicine, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan
| | - Seiji Kageyama
- Division of Virology, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan
| | - Youichi Kurozawa
- Division of Health Administration and Promotion, Faculty of Medicine, Tottori University, Yonago 683-8503, Japan
| | - Reynaldo Flores
- Mayor Juan R. Sanchez Memorial Health Center, Municipality of Pateros, Metro Manila, Philippines
| | - Ronaldo Raymundo
- Municipal Health Office, Municipality of Pateros, Metro Manila, Philippines
| |
Collapse
|
45
|
Abstract
Objective Mepolizumab, a humanized anti-interleukin-5 monoclonal antibody, is effective for treating eosinophilic severe asthma. However, there is a need for more biomarkers that can predict the patient response to mepolizumab before starting therapy. This study aimed to identify a new biomarker in the serum that is able to accurately predict the responsiveness to mepolizumab. Methods This study enrolled 11 patients who had all been diagnosed with severe eosinophilic asthma and were then administered mepolizumab every 4 weeks for at least 4 months. Blood samples were collected, and pulmonary function tests and questionnaires were administered at baseline and after 4, 8 and 16 weeks of treatment. The response to mepolizumab was then assessed based on the difference in the Asthma Quality of Life Questionnaire (AQLQ) score after 16 weeks of mepolizumab therapy compared with that at baseline. Patients with an increase in the AQLQ score of more than 0.5 were defined as responders. The cytokine levels in the blood were measured by LUMINEX 200 and ELISA. Results There were 6 responders and 5 non-responders. The responders showed a significantly lower serum level of chemokine (C-C motif) ligand 4/macrophage inflammatory protein-1β (CCL4/MIP-1β) at baseline compared to the non-responders. Receiver operating characteristic curves to distinguish responders from non-responders using the baseline serum CCL4/MIP-1β level showed a good area under the curve of 0.9. The non-responders showed a significant increase in the level of CCL4/MIP-1β after 4 weeks compared to the baseline. Conclusion A low baseline serum CCL4/MIP-1β level may be useful for predicting a good mepolizumab response in severe eosinophilic asthma.
Collapse
Affiliation(s)
- Maho Suzukawa
- Asthma, Allergy and Rheumatology Center, National Hospital Organization Tokyo National Hospital, Japan
- Clinical Research Center, National Hospital Organization Tokyo National Hospital, Japan
| | - Nobuharu Ohshima
- Center for Pulmonary Diseases, National Hospital Organization Tokyo National Hospital, Japan
| | - Hiroyuki Tashimo
- Asthma, Allergy and Rheumatology Center, National Hospital Organization Tokyo National Hospital, Japan
| | - Isao Asari
- Clinical Research Center, National Hospital Organization Tokyo National Hospital, Japan
| | - Nobuyuki Kobayashi
- Asthma, Allergy and Rheumatology Center, National Hospital Organization Tokyo National Hospital, Japan
| | - Shunsuke Shoji
- Asthma, Allergy and Rheumatology Center, National Hospital Organization Tokyo National Hospital, Japan
| | - Shigeto Tohma
- Asthma, Allergy and Rheumatology Center, National Hospital Organization Tokyo National Hospital, Japan
| | - Ken Ohta
- Asthma, Allergy and Rheumatology Center, National Hospital Organization Tokyo National Hospital, Japan
- Clinical Research Center, National Hospital Organization Tokyo National Hospital, Japan
- Department of Respiratory Medicine, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Japan
| |
Collapse
|
46
|
Du W, Hou F, Tsunekawa A, Kobayashi N, Peng F, Ichinohe T. Effects of oat hay and leguminous forage mixture feeding on enteric methane emission, energy utilization, and feed conversion efficiency in male crossbred Simmental beef cattle. Anim Sci J 2020; 91:e13472. [PMID: 33078546 DOI: 10.1111/asj.13472] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 09/09/2020] [Indexed: 12/21/2022]
Abstract
Dietary manipulation has the potential to mitigate methane (CH4 ) emission and to maintain or enhance livestock productivity. We conducted two experiments to investigate the effects of replacing oat hay by leguminous forages (alfalfa hay [AH], 0, 8, 16, and 24%, experiment 1; common vetch hay [CVH], 0, 10, 20, and 30%, experiment 2) on energy metabolism of crossbred Simmental cattle. In experiment 1, total volatile fatty acid (VFA) concentrations increased quadratically with increasing AH proportions (p = .006) with a forage-to-concentrate ratio of approximately 50:50, whereas the CH4 energy to gross energy intake ratio (CH4 -E:GEI) was significantly lower with 16% AH compared with 24% AH diet (p < .05). In experiment 2, there were no differences in the total VFA concentrations among the four diet groups with a forage-to-concentrate ratio of around 60:40 (p > .05); however, CH4 -E:GEI was significantly lower in the 30% CVH diet compared with the 10% CVH diet (p < .05). There was no significant difference in feed conversion efficiency among the four diet groups in each experiment. The results suggest that substituting 16 and 30% oat hay by AH and CVH provide optimal diets with forage-to-concentrate ratios of 50:50 and 60:40, respectively, which may reduce CH4 emission without compromising the feed conversion efficiency of crossbred Simmental cattle.
Collapse
Affiliation(s)
- Wuchen Du
- International Platform for Dryland Research and Education, Tottori University, Tottori, Japan
| | - Fujiang Hou
- State Key Laboratory of Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, Gansu, China
| | | | | | - Fei Peng
- International Platform for Dryland Research and Education, Tottori University, Tottori, Japan
| | - Toshiyoshi Ichinohe
- Faculty of Life and Environmental Science, Shimane University, Matsue, Japan
| |
Collapse
|
47
|
Mori S, Ito Y, Kishida T, Fukagawa T, Nakano T, Makino K, Mizusawa M, Shirai S, Honda Y, Tsutsumi M, Sakamoto Y, Kobayashi N, Araki M, Yamawaki M, Hirano K. Occurrence and clinical course of peri-stent contrast staining: comparison between second-generation drug-eluting stents and third generation drug-eluting stents. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Peri-stent contrast staining (PSS) has been reported to be associated with very late stent thrombosis.
The aims of this study was to compare the occurrence rate of PSS between second generation drug-eluting stents (2nd DES) and third generation drug-eluting stents (3rd DES), and to identify clinical characteristics associated with PSS.
Methods and results
This study comprised 1899 patients with 2493 de novo lesions treated with 2nd or 3rd DES from October 2015 to September 2018. Follow-up angiography was available for 1883 lesions (75.5%). There were 725 patients with 968 lesions treated with 2nd DES, and 716 patients with 915 lesions treated with 3rd DES. The occurrence of PSS, types of PSS, and VLST related to PSS were compared between 2nd and 3rd DES implantation. Mean follow-up period was 30±12 months. The occurrence rate of PSS and segmental type of PSS were similar between two groups (2nd DES vs. 3rd DES, 1.5% vs. 1.7%, p=0.73, 47% vs. 50%, p=0.85, and respectively). The VLST related to PSS occurred in only one case in 3rd DES group. (0% vs. 6.3%, p=0.33).
Conclusion
The occurrence rate of PSS and clinical course were similar between 2nd and 3rd DES.
Funding Acknowledgement
Type of funding source: None
Collapse
Affiliation(s)
- S Mori
- Saiseikai Yokohama City Eastern Hospital, Cardiology, Yokohama, Japan
| | - Y Ito
- Saiseikai Yokohama City Eastern Hospital, Cardiology, Yokohama, Japan
| | - T Kishida
- Saiseikai Yokohama City Eastern Hospital, Cardiology, Yokohama, Japan
| | - T Fukagawa
- Saiseikai Yokohama City Eastern Hospital, Cardiology, Yokohama, Japan
| | - T Nakano
- Saiseikai Yokohama City Eastern Hospital, Cardiology, Yokohama, Japan
| | - K Makino
- Saiseikai Yokohama City Eastern Hospital, Cardiology, Yokohama, Japan
| | - M Mizusawa
- Saiseikai Yokohama City Eastern Hospital, Cardiology, Yokohama, Japan
| | - S Shirai
- Saiseikai Yokohama City Eastern Hospital, Cardiology, Yokohama, Japan
| | - Y Honda
- Saiseikai Yokohama City Eastern Hospital, Cardiology, Yokohama, Japan
| | - M Tsutsumi
- Saiseikai Yokohama City Eastern Hospital, Cardiology, Yokohama, Japan
| | - Y Sakamoto
- Saiseikai Yokohama City Eastern Hospital, Cardiology, Yokohama, Japan
| | - N Kobayashi
- Saiseikai Yokohama City Eastern Hospital, Cardiology, Yokohama, Japan
| | - M Araki
- Saiseikai Yokohama City Eastern Hospital, Cardiology, Yokohama, Japan
| | - M Yamawaki
- Saiseikai Yokohama City Eastern Hospital, Cardiology, Yokohama, Japan
| | - K Hirano
- Saiseikai Yokohama City Eastern Hospital, Cardiology, Yokohama, Japan
| |
Collapse
|
48
|
Rahman S, Paul S, Aung M, Ahmed S, Haque N, Raisul M, Choity J, Nila S, Ara H, Roy S, Khan M, Hossain M, Kobayashi N. Predominance of Leptospira wolffii in north-central Bangladesh, 2019. New Microbes New Infect 2020; 38:100765. [PMID: 33133612 PMCID: PMC7588863 DOI: 10.1016/j.nmni.2020.100765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 09/14/2020] [Accepted: 09/16/2020] [Indexed: 11/20/2022] Open
Abstract
Leptospira was detected in 48.9% of blood samples from 182 febrile patients in north-central Bangladesh in 2019. Most Leptospira were classified as L. wolffii (93%) on the basis of phylogenetic analysis of 16S ribosomal RNA genes, while others were assigned to L. borgpetersenii and L. meyeri.
Collapse
Affiliation(s)
- S. Rahman
- Mymensingh Medical College, Mymensingh, Bangladesh
| | - S.K. Paul
- Netrokona Medical College, Netrokona, Bangladesh
| | - M.S. Aung
- Sapporo Medical University School of Medicine, Sapporo, Japan
| | - S. Ahmed
- Mymensingh Medical College, Mymensingh, Bangladesh
| | - N. Haque
- Mymensingh Medical College, Mymensingh, Bangladesh
| | | | - J.K. Choity
- Mymensingh Medical College, Mymensingh, Bangladesh
| | - S.S. Nila
- Mymensingh Medical College, Mymensingh, Bangladesh
| | - H. Ara
- Mymensingh Medical College, Mymensingh, Bangladesh
| | - S. Roy
- Mymensingh Medical College, Mymensingh, Bangladesh
| | | | | | - N. Kobayashi
- Sapporo Medical University School of Medicine, Sapporo, Japan
| |
Collapse
|
49
|
Alam M, Ahmad FU, Mazid R, Roy S, Al-Maruf A, Rasheduzzaman M, Hoque N, Ahmed S, Nasreen SA, Rahman MS, Paul SK, Kobayashi N. Molecular Detection of Human Brucellosis among Patients with Pyrexia of Unknown Origin. Mymensingh Med J 2020; 29:771-778. [PMID: 33116076] [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: 06/11/2023]
Abstract
This study describes the molecular detection of human brucellosis among patients with pyrexia of unknown origin. It was a cross-sectional descriptive study and was carried out in the Department of Microbiology, Mymensingh Medical College, Mymensingh, Bangladesh. Non-probability purposive type of sampling technique was used. Blood samples were collected from 400 pyretic patients from September 2018 to August 2019. BCSP31 Brucella genus-specific TaqMan real-time PCR and SYBR Green real-time PCR were undertaken for molecular detection. Out of 400 samples, 22 (5.5%) samples found BCSP31 Brucella genus-specific real-time PCR positive. The study revealed that a considerable number of brucellosis is present in rural areas among risk as well as non-risk group study population having definite male predominancy, most prone to develop among >40-80 years age group. Brucella genus and species-specific real-time PCR might be performed for confirmation and also to avoid unjustified costs, drug toxicity, and un-masking of other potentially dangerous diseases.
Collapse
Affiliation(s)
- M Alam
- Dr Mahbubul Alam, MD Resident, Department of Microbiology, Mymensingh Medical College (MMC), Mymensingh, Bangladesh; E-mail:
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
50
|
|