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Mizumoto T, Ikei H, Hagiwara K, Matsubara T, Higuchi F, Kobayashi M, Yamashina T, Sasaki J, Yamada N, Higuchi N, Haraga K, Kirihara F, Okabe E, Asai K, Hirotsu M, Chen C, Miyazaki Y, Nakagawa S. Mood and physiological effects of visual stimulation with images of the natural environment in individuals with depressive and anxiety disorders. J Affect Disord 2024; 356:257-266. [PMID: 38588725 DOI: 10.1016/j.jad.2024.04.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 04/02/2024] [Accepted: 04/05/2024] [Indexed: 04/10/2024]
Abstract
BACKGROUND Nature therapies are gaining attention as non-pharmacological treatments for depressive and anxiety disorders, but research on their effectiveness in patients is limited. This study investigates the mood-improving effects of visual stimulation with natural environmental images in patients with depressive and anxiety disorders. METHODS We conducted a randomized crossover comparison trial involving 60 right-handed adult participants with depressive or anxiety disorders and receiving outpatient treatment. Visual stimuli of natural environments consisted of green-themed nature images, while the control stimuli featured urban scenes dominated by buildings. The stimulation lasted for 3 min, during which orbital prefrontal brain activity was measured using a 2-channel Near-infrared Spectroscopy (NIRS) system, and heart rate variability was assessed using fingertip accelerated plethysmography. RESULTS Mood enhancement effects were observed in both the depressive and anxiety disorder groups following visual stimulation with nature images. In the depression group, orbital prefrontal oxygenated hemoglobin concentration significantly increased after visual stimulation with nature images, while there were no significant changes in the anxiety group. However, in the anxiety group, a correlation was found between reduced orbital prefrontal oxygenated hemoglobin in response to nature images and increased mood-enhancement. Furthermore, the severity of depressive symptoms did not significantly affect the intervention effects, whereas heightened anxiety symptoms was associated with a smaller mood enhancement effect. DISCUSSION Our study demonstrates the benefits of nature image stimulation for patients with depressive and anxiety disorders. Differential orbital prefrontal brain activity impacts notwithstanding, both conditions exhibited mood enhancement, affirming the value of nature image stimulation.
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Affiliation(s)
- Tomohiro Mizumoto
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Harumi Ikei
- Center for Environment, Health and Field Sciences, Chiba University, Chiba, Japan
| | - Kosuke Hagiwara
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Toshio Matsubara
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Fumihiro Higuchi
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Masaaki Kobayashi
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Takahiro Yamashina
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Jun Sasaki
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan; Koryo Hospital, Ube, Japan
| | - Norihiro Yamada
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Naoko Higuchi
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Kenichi Haraga
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Fumiaki Kirihara
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Emi Okabe
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Kumi Asai
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Masako Hirotsu
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Chong Chen
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan.
| | - Yoshifumi Miyazaki
- Center for Environment, Health and Field Sciences, Chiba University, Chiba, Japan
| | - Shin Nakagawa
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
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Hayashi Y, Ueyama A, Funaki S, Jinushi K, Higuchi N, Morihara H, Hirata M, Nagira Y, Saito T, Kawashima A, Iwahori K, Shintani Y, Wada H. In situ analysis of CCR8 + regulatory T cells in lung cancer: suppression of GzmB + CD8 + T cells and prognostic marker implications. BMC Cancer 2024; 24:627. [PMID: 38783281 DOI: 10.1186/s12885-024-12363-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Accepted: 05/09/2024] [Indexed: 05/25/2024] Open
Abstract
BACKGROUND CCR8-expressing regulatory T cells (Tregs) are selectively localized within tumors and have gained attention as potent suppressors of anti-tumor immunity. This study focused on CCR8+ Tregs and their interaction with CD8+ T cells in the tumor microenvironment of human lung cancer. We evaluated their spatial distribution impact on CD8+ T cell effector function, specifically granzyme B (GzmB) expression, and clinical outcomes. METHODS A total of 81 patients with lung squamous cell carcinoma (LSCC) who underwent radical surgical resection without preoperative treatment were enrolled. Histological analyses were performed, utilizing an automated image analysis system for double-stained immunohistochemistry assays of CCR8/Foxp3 and GzmB/CD8. We investigated the association of CCR8+ Tregs and GzmB+ CD8+ T cells in tumor tissues and further evaluated the prognostic impact of their distribution profiles. RESULTS Histological evaluation using the region of interest (ROI) protocol showed that GzmB expression levels in CD8+ T cells were decreased in areas with high infiltration of CCR8+ Tregs, suggesting a suppressive effect of CCR8+ Tregs on T cell cytotoxicity in the local tumor microenvironment. Analysis of the association with clinical outcomes showed that patients with more CCR8+ Tregs and lower GzmB expression, represented by a low GzmB/CCR8 ratio, had worse progression-free survival. CONCLUSIONS Our data suggest that local CCR8+ Treg accumulation is associated with reduced CD8+ T cell cytotoxic activity and poor prognosis in LSCC patients, highlighting the biological role and clinical significance of CCR8+ Tregs in the tumor microenvironment. The GzmB/CCR8 ratio may be a useful prognostic factor for future clinical applications in LSCC.
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MESH Headings
- Humans
- T-Lymphocytes, Regulatory/immunology
- T-Lymphocytes, Regulatory/metabolism
- Lung Neoplasms/immunology
- Lung Neoplasms/pathology
- Lung Neoplasms/mortality
- Lung Neoplasms/metabolism
- Lung Neoplasms/surgery
- CD8-Positive T-Lymphocytes/immunology
- CD8-Positive T-Lymphocytes/metabolism
- Prognosis
- Female
- Male
- Receptors, CCR8/metabolism
- Receptors, CCR8/immunology
- Granzymes/metabolism
- Tumor Microenvironment/immunology
- Aged
- Middle Aged
- Carcinoma, Squamous Cell/immunology
- Carcinoma, Squamous Cell/pathology
- Carcinoma, Squamous Cell/metabolism
- Lymphocytes, Tumor-Infiltrating/immunology
- Lymphocytes, Tumor-Infiltrating/metabolism
- Biomarkers, Tumor/metabolism
- Aged, 80 and over
- Adult
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Affiliation(s)
- Yoshinori Hayashi
- Department of Clinical Research in Tumor Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Azumi Ueyama
- Department of Clinical Research in Tumor Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan.
- Pharmaceutical Research Division, Shionogi & Co., Ltd., -1-1 Futaba-Cho, Toyonaka, Osaka, 561-0825, Japan.
| | - Soichiro Funaki
- Department of General Thoracic Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Koichi Jinushi
- Department of Clinical Research in Tumor Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Naoko Higuchi
- Department of Clinical Research in Tumor Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
- Pharmaceutical Research Division, Shionogi & Co., Ltd., -1-1 Futaba-Cho, Toyonaka, Osaka, 561-0825, Japan
| | - Hitomi Morihara
- Department of Clinical Research in Tumor Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
- Pharmaceutical Research Division, Shionogi & Co., Ltd., -1-1 Futaba-Cho, Toyonaka, Osaka, 561-0825, Japan
| | - Michinari Hirata
- Department of Clinical Research in Tumor Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
- Pharmaceutical Research Division, Shionogi & Co., Ltd., -1-1 Futaba-Cho, Toyonaka, Osaka, 561-0825, Japan
| | - Yoji Nagira
- Pharmaceutical Research Division, Shionogi & Co., Ltd., -1-1 Futaba-Cho, Toyonaka, Osaka, 561-0825, Japan
| | - Takuro Saito
- Department of Clinical Research in Tumor Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Atsunari Kawashima
- Department of Clinical Research in Tumor Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
- Department of Urology, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Kota Iwahori
- Department of Clinical Research in Tumor Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
- Department of Respiratory Medicine and Clinical Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Yasushi Shintani
- Department of General Thoracic Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Hisashi Wada
- Department of Clinical Research in Tumor Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
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3
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Chen C, Okawa S, Okubo R, Hagiwara K, Mizumoto T, Higuchi N, Nakagawa S, Tabuchi T. Mother-to-infant bonding difficulties are associated with future maternal depression and child-maltreatment behaviors: A Japanese nationwide longitudinal study. Psychiatry Res 2024; 334:115814. [PMID: 38412713 DOI: 10.1016/j.psychres.2024.115814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 11/29/2023] [Accepted: 02/22/2024] [Indexed: 02/29/2024]
Abstract
BACKGROUND Mother-to-infant bonding difficulties (MIBD) are considered risk factors for postpartum depression and child-maltreatment behaviors. However, few longitudinal studies have examined this hypothesis. This study aims to explore the relationship between MIBD and subsequent maternal depression and child-maltreatment behaviors using longitudinal data from a 2021 Japanese nationwide survey. METHODS We studied 658 first-time mothers who had given birth within the past year and had not reported postpartum depression or child-maltreatment behaviors at baseline. The Japanese version of Mother-to-Infant Bonding Scale (MIBS) was used to measure MIBD. Subjects were monitored for six months and subsequently completed the Edinburgh Postnatal Depression Scale and responded to inquiries about child-maltreatment behaviors. RESULTS After adjusting for covariates, MIBD was associated with higher odds of maternal depression (OR=1.737, 95 % CI [1.078, 2.797]) and child-maltreatment behaviors (OR=2.040, 95 % CI [1.401, 2.970]) six months later. Further analysis indicated that MIBD was particularly associated with a heightened risk of emotional abuse (OR=2.172, 95 % CI [1.486, 3.176]). Sensitivity analysis confirmed these findings through multiple approaches, such as applying inverse probability weighting to mitigate selection bias, using an alternative MIBS cutoff score of 5, and adopting a time-varying model to account for the dynamic nature of depressive symptoms and child-maltreatment behaviors. CONCLUSION Proactive screening for MIBD could serve as a valuable tool in the early detection of maternal depression and potential child-maltreatment behaviors.
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Affiliation(s)
- Chong Chen
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan.
| | - Sumiyo Okawa
- Institute for Global Health Policy Research, Bureau of International Health Cooperation, National Center for Global Health and Medicine, Tokyo, Japan
| | - Ryo Okubo
- Department of Psychiatry, National Hospital Organization Obihiro Hospital, Obihiro, Japan
| | - Kosuke Hagiwara
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Tomohiro Mizumoto
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Naoko Higuchi
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Shin Nakagawa
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Takahiro Tabuchi
- Cancer Control Center, Osaka International Cancer Institute, Osaka, Japan
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Nishimura A, Yokoyama K, Naruto T, Yamagishi C, Imamura T, Nakazono H, Kimura S, Ito M, Sagisaka M, Tanaka Y, Piao J, Namikawa Y, Yanagimachi M, Isoda T, Kanai A, Matsui H, Isobe T, Sato-Otsubo A, Higuchi N, Takada A, Okuno H, Saito S, Karakawa S, Kobayashi S, Hasegawa D, Fujisaki H, Hasegawa D, Koike K, Koike T, Rai S, Umeda K, Sano H, Sekinaka Y, Ogawa A, Kinoshita A, Shiba N, Miki M, Kimura F, Nakayama H, Nakazawa Y, Taga T, Taki T, Adachi S, Manabe A, Koh K, Ishida Y, Takita J, Ishikawa F, Goto H, Morio T, Mizutani S, Tojo A, Takagi M. Myeloid/natural killer (NK) cell precursor acute leukemia as a distinct leukemia type. Sci Adv 2023; 9:eadj4407. [PMID: 38091391 PMCID: PMC10848711 DOI: 10.1126/sciadv.adj4407] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 11/14/2023] [Indexed: 12/18/2023]
Abstract
Myeloid/natural killer (NK) cell precursor acute leukemia (MNKPL) has been described on the basis of its unique immunophenotype and clinical phenotype. However, there is no consensus on the characteristics for identifying this disease type because of its rarity and lack of defined distinctive molecular characteristics. In this study, multiomics analysis revealed that MNKPL is distinct from acute myeloid leukemia, T cell acute lymphoblastic leukemia, and mixed-phenotype acute leukemia (MPAL), and NOTCH1 and RUNX3 activation and BCL11B down-regulation are hallmarks of MNKPL. Although NK cells have been classically considered to be lymphoid lineage-derived, the results of our single-cell analysis using MNKPL cells suggest that NK cells and myeloid cells share common progenitor cells. Treatment outcomes for MNKPL are unsatisfactory, even when hematopoietic cell transplantation is performed. Multiomics analysis and in vitro drug sensitivity assays revealed increased sensitivity to l-asparaginase and reduced levels of asparagine synthetase (ASNS), supporting the clinically observed effectiveness of l-asparaginase.
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Affiliation(s)
- Akira Nishimura
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kazuaki Yokoyama
- Department of Hematology/Oncology, Research Hospital, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Takuya Naruto
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Chika Yamagishi
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Toshihiko Imamura
- Department of Pediatrics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
- Leukemia/Lymphoma Committee of Japanese Society of Pediatric Hematology and Oncology, Tokyo, Japan
| | - Hiroto Nakazono
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Shunsuke Kimura
- Department of Pediatrics, Hiroshima University Graduate School of Biomedical Sciences, Hiroshima, Japan
| | - Mieko Ito
- Division of Hematology/Oncology, Kanagawa Children’s Medical Center, Yokohama, Japan
| | - Maiko Sagisaka
- Division of Hematology/Oncology, Kanagawa Children’s Medical Center, Yokohama, Japan
| | - Yukie Tanaka
- Research Core, Institute of Research, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Jinhua Piao
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Yui Namikawa
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Masakatsu Yanagimachi
- Division of Hematology/Oncology, Kanagawa Children’s Medical Center, Yokohama, Japan
| | - Takeshi Isoda
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Akinori Kanai
- Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan
| | - Hirotaka Matsui
- Department of Molecular Laboratory Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Tomoya Isobe
- Department of Pediatrics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Aiko Sato-Otsubo
- Department of Pediatrics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Naoko Higuchi
- Department of Pediatrics, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Akiko Takada
- Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Haruna Okuno
- Department of Pediatrics, Gunma University Hospital, Maebashi, Japan
| | - Shoji Saito
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Japan
| | - Shuhei Karakawa
- Department of Pediatrics, Hiroshima University Hospital, Hiroshima, Japan
| | - Shogo Kobayashi
- Department of Pediatric Oncology, Fukushima Medical University Hospital, Fukushima, Japan
| | - Daisuke Hasegawa
- Department of Pediatrics, St. Luke’s International Hospital, Tokyo, Japan
| | - Hiroyuki Fujisaki
- Department of Pediatric Hematology and Oncology, Osaka City General Hospital, Osaka, Japan
| | - Daiichiro Hasegawa
- Department of Hematology and Oncology, Hyogo Prefectural Kobe Children’s Hospital, Kobe, Japan
| | - Kazutoshi Koike
- Division of Pediatric Hematology and Oncology, Ibaraki Children's Hospital, Mito, Japan
| | - Takashi Koike
- Department of Pediatrics, Tokai University School of Medicine, Isehara, Japan
| | - Shinya Rai
- Department of Hematology and Rheumatology, Faculty of Medicine, Kindai University, Osakasayama, Japan
| | - Katsutsugu Umeda
- Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hideki Sano
- Department of Pediatric Oncology, Fukushima Medical University Hospital, Fukushima, Japan
| | - Yujin Sekinaka
- Department of Pediatrics, National Defense Medical College, Tokorozawa, Japan
| | - Atsushi Ogawa
- Department of Pediatrics, Niigata Cancer Center Hospital, Niigata, Japan
| | - Akitoshi Kinoshita
- Department of Pediatrics, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Norio Shiba
- Department of Pediatrics, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Mizuka Miki
- Department of Pediatrics, Hiroshima Red Cross Hospital and Atomic-Bomb Survivors Hospital, Hiroshima, Japan
| | - Fumihiko Kimura
- Division of Hematology, Department of Internal Medicine, National Defense Medical College, Tokorozawa, Japan
| | - Hideki Nakayama
- Department of Pediatrics, Kyushu Cancer Center, Fukuoka, Japan
| | - Yozo Nakazawa
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Japan
| | - Takashi Taga
- Leukemia/Lymphoma Committee of Japanese Society of Pediatric Hematology and Oncology, Tokyo, Japan
- Department of Pediatrics, Shiga University of Medical Science, Ohtsu, Japan
| | - Tomohiko Taki
- Leukemia/Lymphoma Committee of Japanese Society of Pediatric Hematology and Oncology, Tokyo, Japan
- Department of Medical Technology, Faculty of Health Sciences, Kyorin University, Tokyo, Japan
| | - Souichi Adachi
- Leukemia/Lymphoma Committee of Japanese Society of Pediatric Hematology and Oncology, Tokyo, Japan
- Department of Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Atsushi Manabe
- Leukemia/Lymphoma Committee of Japanese Society of Pediatric Hematology and Oncology, Tokyo, Japan
- Department of Pediatrics, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Katsuyoshi Koh
- Leukemia/Lymphoma Committee of Japanese Society of Pediatric Hematology and Oncology, Tokyo, Japan
- Department of Hematology/Oncology, Saitama Children’s Medical Center, Saitama, Japan
| | - Yasushi Ishida
- Leukemia/Lymphoma Committee of Japanese Society of Pediatric Hematology and Oncology, Tokyo, Japan
- Pediatric Medical Center, Ehime Prefectural Central Hospital, Matsuyama, Japan
| | - Junko Takita
- Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Fumihiko Ishikawa
- Laboratory for Human Disease Models, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
- Department of Comprehensive Pathology, Tokyo Medical and Dental University University (TMDU), Tokyo, Japan
| | - Hiroaki Goto
- Division of Hematology/Oncology, Kanagawa Children’s Medical Center, Yokohama, Japan
| | - Tomohiro Morio
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Shuki Mizutani
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Arinobu Tojo
- Department of Hematology/Oncology, Research Hospital, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
- Data Science and Faculty Affairs, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Masatoshi Takagi
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
- Leukemia/Lymphoma Committee of Japanese Society of Pediatric Hematology and Oncology, Tokyo, Japan
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5
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Chen C, Okubo R, Okawa S, Hagiwara K, Mizumoto T, Higuchi N, Nakagawa S, Tabuchi T. The prevalence and risk factors of suicidal ideation in women with and without postpartum depression. J Affect Disord 2023; 340:427-434. [PMID: 37572702 DOI: 10.1016/j.jad.2023.08.051] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 08/08/2023] [Accepted: 08/09/2023] [Indexed: 08/14/2023]
Abstract
AIM Suicidal ideation (SI) is a severe mental health issue in the postpartum period. As depression is a major risk factor of SI, it is often considered that the risk factors of SI are the same as those of postpartum depression. However, SI occurs in women without postpartum depression as well. The aim of this study is to separately examine the prevalence and risk factors of SI in postpartum women with and without depression. METHODS We used data of 5688 postpartum women from a 2021 Japanese nation-wide survey, whose age and geographical distributions were nationally representative. Postpartum depression was evaluated with the Edinburgh Postnatal Depression Scale (EPDS) and SI was measured with the 10th item of EPDS. RESULTS The prevalence of SI in women with and without depression (EPDS≥9) was 51.8 % and 3.3 %, respectively. Younger age and low family support were risk factors common to both women with and without depression. Being single, currently working, history of depressive disorders, and family members' visits to support being cancelled were risk factors of SI for women with depression. In contrast, primipara, history of psychiatric disorders other than depressive disorders, infectious disease other than colds during pregnancy, and feeling of loneliness increased since COVID-19 were risk factor of SI for women without depression. CONCLUSION Although with a low prevalence, SI occurs in women without postpartum depression, which has unique risk factors indicating distinct psychopathological mechanisms. These findings call for tailored SI intervention strategies according to whether postpartum depression is present or not.
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Affiliation(s)
- Chong Chen
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan.
| | - Ryo Okubo
- Department of Psychiatry, National Hospital Organization Obihiro Hospital, Obihiro, Japan
| | - Sumiyo Okawa
- Institute for Global Health Policy Research, Bureau of International Health Cooperation, National Center for Global Health and Medicine, Tokyo, Japan
| | - Kosuke Hagiwara
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Tomohiro Mizumoto
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Naoko Higuchi
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Shin Nakagawa
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Takahiro Tabuchi
- Cancer Control Center, Osaka International Cancer Institute, Osaka, Japan
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6
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Chen C, Okubo R, Okawa S, Hagiwara K, Mizumoto T, Higuchi N, Nakagawa S, Tabuchi T. Broad impact of adverse childhood experiences on postpartum maternal mental health, child-rearing behaviors, and child development in Japan. Psychiatry Clin Neurosci 2023; 77:569-571. [PMID: 37534759 DOI: 10.1111/pcn.13581] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 06/27/2023] [Accepted: 07/30/2023] [Indexed: 08/04/2023]
Affiliation(s)
- Chong Chen
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Ryo Okubo
- Department of Psychiatry, National Hospital Organization Obihiro Hospital, Obihiro, Japan
| | - Sumiyo Okawa
- Institute for Global Health Policy Research, Bureau of International Health Cooperation, National Center for Global Health and Medicine, Tokyo, Japan
| | - Kosuke Hagiwara
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Tomohiro Mizumoto
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Naoko Higuchi
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Shin Nakagawa
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Takahiro Tabuchi
- Cancer Control Center, Osaka International Cancer Institute, Osaka, Japan
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7
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Higuchi N, Honda Y, Koga Y, Asai H, Ono H, Kato W, Nakashima K, Cuesta EDL, Tsujino T, Yamamoto H, Kusuhara K, Hisaoka M, Ohga S. TRK-inhibitor control of an NTRK-rearranged spindle cell tumor with malignant transformation in an adolescent. Pediatr Blood Cancer 2023:e30379. [PMID: 37132163 DOI: 10.1002/pbc.30379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 03/30/2023] [Accepted: 04/04/2023] [Indexed: 05/04/2023]
Affiliation(s)
- Naoko Higuchi
- Department of Pediatrics, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Yuko Honda
- Department of Pediatrics, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Yuhki Koga
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hiroshi Asai
- Department of Pediatrics, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hiroaki Ono
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Wakako Kato
- Department of Pediatrics, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kentaro Nakashima
- Department of Pediatrics, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | | | | | - Hidetaka Yamamoto
- Department of Anatomic Pathology, Graduate of School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Koichi Kusuhara
- Department of Pediatrics, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Masanori Hisaoka
- Department of Pathology and Oncology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Shouichi Ohga
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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8
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Mizuki K, Honda Y, Asai H, Higuchi N, Morita H, Yabe H, Kusuhara K. Successful Retransplantation With Killer Cell Immunoglobulin-like Receptor Ligand-mismatched Cord Blood in Infant Acute Lymphoblastic Leukemia That Relapsed After Transplantation. J Pediatr Hematol Oncol 2023; 45:e547-e550. [PMID: 36706271 DOI: 10.1097/mph.0000000000002614] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 12/05/2022] [Indexed: 01/29/2023]
Abstract
The prognosis of children with KMT2A -rearranged ( KMT2A -r) acute lymphoblastic leukemia (ALL) remains dismal. This report describes the successful retransplantation of a patient with infant ALL who relapsed both bone marrow and central nervous system. The patient received HLA-matched cord blood transplantation (CBT) and relapsed 18 months later. After achieving the second remission, the patient received a killer cell immunoglobulin-like receptor ligand-mismatched CBT with a reduced-intensity conditioning regimen and has been in remission for 52 months. Thus, killer cell immunoglobulin-like receptor ligand-mismatched CBT with reduced-intensity conditioning might be a treatment option for patients with KMT2A- r ALL who relapsed after transplantation, even with extramedullary relapse.
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Affiliation(s)
- Kazuyoshi Mizuki
- Department of Pediatrics, University of Occupational and Environmental Health, Kitakyushu
| | - Yuko Honda
- Department of Pediatrics, University of Occupational and Environmental Health, Kitakyushu
| | - Hiroshi Asai
- Department of Pediatrics, University of Occupational and Environmental Health, Kitakyushu
| | - Naoko Higuchi
- Department of Pediatrics, University of Occupational and Environmental Health, Kitakyushu
| | - Hiromi Morita
- Department of Pediatrics, University of Occupational and Environmental Health, Kitakyushu
| | - Hiromasa Yabe
- Department of Pediatrics, Tokai University School of Medicine, Isehara, Japan
| | - Koichi Kusuhara
- Department of Pediatrics, University of Occupational and Environmental Health, Kitakyushu
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9
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Chen C, Okubo R, Okawa S, Higuchi N, Nakagawa S, Tabuchi T. The prevalence and risk factors of suicidal ideation in pregnancy and the postpartum under the COVID-19 pandemic in Japan. Psychiatry Clin Neurosci 2023; 77:300-301. [PMID: 36861501 DOI: 10.1111/pcn.13538] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/30/2023] [Accepted: 02/22/2023] [Indexed: 03/03/2023]
Affiliation(s)
- Chong Chen
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Ryo Okubo
- Department of Psychiatry, National Hospital Organization Obihiro Hospital, Obihiro, Japan
| | - Sumiyo Okawa
- Institute for Global Health Policy Research, Bureau of International Health Cooperation, National Center for Global Health and Medicine, Tokyo, Japan
| | - Naoko Higuchi
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Shin Nakagawa
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Takahiro Tabuchi
- Cancer Control Center, Osaka International Cancer Institute, Osaka, Japan
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10
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Manabe T, Taku K, Hoshina T, Higuchi N, Karakawa S, Kusuhara K. A pediatric case of congenital neutropenia with SRP54 gene mutation in which monocytosis and gingival swelling were useful in differentiating from autoimmune neutropenia. Pediatr Blood Cancer 2022; 69:e29648. [PMID: 35253356 DOI: 10.1002/pbc.29648] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 02/14/2022] [Accepted: 02/24/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Toshihiko Manabe
- Department of Pediatrics, School of Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan
| | - Keisuke Taku
- Department of Pediatrics, School of Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan
| | - Takayuki Hoshina
- Department of Pediatrics, School of Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan
| | - Naoko Higuchi
- Department of Pediatrics, School of Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan
| | - Shuhei Karakawa
- Department of Pediatrics, Hiroshima University Graduate School of Biomedical and Health Science, Hiroshima, Japan
| | - Koichi Kusuhara
- Department of Pediatrics, School of Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan
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11
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Haruna M, Ueyama A, Yamamoto Y, Hirata M, Goto K, Yoshida H, Higuchi N, Yoshida T, Kidani Y, Nakamura Y, Nagira M, Kawashima A, Iwahori K, Shintani Y, Ohkura N, Wada H. The impact of CCR8+ regulatory T cells on cytotoxic T cell function in human lung cancer. Sci Rep 2022; 12:5377. [PMID: 35354899 PMCID: PMC8967908 DOI: 10.1038/s41598-022-09458-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 03/23/2022] [Indexed: 12/02/2022] Open
Abstract
Regulatory T cells (Tregs) suppress the host immune response and maintain immune homeostasis. Tregs also promote cancer progression and are involved in resistance to immune checkpoint inhibitor treatments. Recent studies identified selective CCR8 expression on tumor-infiltrating Tregs; CCR8+ Tregs have been indicated as a possible new target of cancer immunotherapy. Here, we investigated the features of CCR8+ Tregs in lung cancer patients. CCR8+ Tregs were highly activated and infiltration of CCR8+ Tregs in tumors was associated with poor prognosis in lung cancer patients. We also investigated their immune suppressive function, especially the influence on cytotoxic T lymphocyte cell function. The Cancer Genome Atlas analysis revealed that CD8 T cell activities were suppressed in high CCR8-expressing tumors. Additionally, depletion of CCR8+ cells enhanced CD8 T cell function in an ex vivo culture of lung tumor-infiltrating cells. Moreover, CCR8+ Tregs, but not CCR8− Tregs, induced from human PBMCs markedly suppressed CD8 T cell cytotoxicity. Finally, we demonstrated the therapeutic effect of targeting CCR8 in a murine model of lung cancer. These findings reveal the significance of CCR8+ Tregs for immunosuppression in lung cancer, especially via cytotoxic T lymphocyte cell suppression, and suggest the potential value of CCR8-targeted therapy for cancer treatment.
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12
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Hata A, Nakashita R, Fukasawa K, Minami M, Fukue Y, Higuchi N, Uno H, Nakajima Y, Saeki M, Kozakai C, Takada MB. Occurrence patterns of crop-foraging sika deer distribution in an agriculture-forest landscape revealed by nitrogen stable isotopes. Ecol Evol 2021; 11:15303-15311. [PMID: 34765179 PMCID: PMC8571634 DOI: 10.1002/ece3.8216] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 09/05/2021] [Accepted: 09/24/2021] [Indexed: 11/09/2022] Open
Abstract
Conflicts arising from the consumption of anthropogenic foods by wildlife are increasing worldwide. Conventional tools for evaluating the spatial distribution pattern of large terrestrial mammals that consume anthropogenic foods have various limitations, despite their importance in management to mitigate conflicts. In this study, we examined the spatial distribution pattern of crop-foraging sika deer by performing nitrogen stable isotope analyses of bone collagen. We evaluated whether crop-foraging deer lived closer to agricultural crop fields during the winter and spring, when crop production decreases. We found that female deer in proximity to agricultural crop fields during the winter and spring were more likely to be crop-foraging individuals. Furthermore, the likelihood of crop consumption by females decreased by half as the distance to agricultural crop fields increased to 5-10 km. We did not detect a significant trend in the spatial distribution of crop-foraging male deer. The findings of spatial distribution patterns of crop-foraging female deer will be useful for the establishment of management areas, such as zonation, for efficient removal of them.
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Affiliation(s)
- Ayaka Hata
- Institute of Livestock and Grassland ScienceNational Agriculture and Food Research Organization (NARO)TsukubaIbarakiJapan
| | - Rumiko Nakashita
- Forestry and Forest Products Research InstituteTsukubaIbarakiJapan
| | - Keita Fukasawa
- Center for Environmental Biology and Ecosystem StudiesNational Institute for Environmental StudiesTsukubaIbarakiJapan
| | - Masato Minami
- School of Veterinary MedicineAzabu UniversitySagamiharaKanagawaJapan
| | - Yuko Fukue
- Insutitute for Biodiversity Research and Education EarthwormKaruizawaNaganoJapan
| | - Naoko Higuchi
- Insutitute for Biodiversity Research and Education EarthwormKaruizawaNaganoJapan
| | - Hikaru Uno
- Advanced Analysis CenterNAROTsukubaIbarakiJapan
| | | | - Midori Saeki
- Institute of Livestock and Grassland ScienceNational Agriculture and Food Research Organization (NARO)TsukubaIbarakiJapan
| | - Chinatsu Kozakai
- Institute of Livestock and Grassland ScienceNational Agriculture and Food Research Organization (NARO)TsukubaIbarakiJapan
| | - Mayura B. Takada
- Faculty of Science and EngineeringChuo UniversityBunkyo‐kuTokyoJapan
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13
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Hata A, Nakashita R, Anezaki T, Minami M, Fukue Y, Higuchi N, Uno H, Nakajima Y, Saeki M, Kozakai C, Takada MB. Agricultural crop consumption induces precocious maturity in deer by improving physical and reproductive performance. Ecosphere 2021. [DOI: 10.1002/ecs2.3464] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Ayaka Hata
- Central Region Agricultural Research Center National Agriculture and Food Research Organization (NARO) 2‐1‐18 Kannondai Tsukuba Ibaraki 305‐8666 Japan
| | - Rumiko Nakashita
- Forestry and Forest Products Research Institute 1 Matsunosato Tsukuba Ibaraki 305‐8687 Japan
| | - Tomoko Anezaki
- Gunma Museum of Natural History 1674‐1 Kamikuroiwa Tomioka Gunma 370‐2345 Japan
| | - Masato Minami
- School of Veterinary Medicine Azabu University 1‐17‐71 Fuchinobe, Chuo‐ku Sagamihara Kanagawa 252‐5201 Japan
| | - Yuko Fukue
- Institute for Biodiversity Research and Education Earthworm 1549‐3‐1 Oiwake Karuizawa Nagano 389‐0115 Japan
| | - Naoko Higuchi
- Institute for Biodiversity Research and Education Earthworm 1549‐3‐1 Oiwake Karuizawa Nagano 389‐0115 Japan
| | - Hikaru Uno
- Institute for Agro‐Environmental Sciences NARO 3‐1‐3 Kannondai Tsukuba Ibaraki 305‐8604 Japan
| | - Yasuhiro Nakajima
- Institute for Agro‐Environmental Sciences NARO 3‐1‐3 Kannondai Tsukuba Ibaraki 305‐8604 Japan
| | - Midori Saeki
- Central Region Agricultural Research Center National Agriculture and Food Research Organization (NARO) 2‐1‐18 Kannondai Tsukuba Ibaraki 305‐8666 Japan
| | - Chinatsu Kozakai
- Central Region Agricultural Research Center National Agriculture and Food Research Organization (NARO) 2‐1‐18 Kannondai Tsukuba Ibaraki 305‐8666 Japan
| | - Mayura B. Takada
- Faculty of Science and Engineering Chuo University 1‐13‐27 Kasuga Bunkyo‐ku Tokyo 112‐8551 Japan
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14
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Fukao K, Noshi T, Yamamoto A, Kitano M, Ando Y, Noda T, Baba K, Matsumoto K, Higuchi N, Ikeda M, Shishido T, Naito A. Combination treatment with the cap-dependent endonuclease inhibitor baloxavir marboxil and a neuraminidase inhibitor in a mouse model of influenza A virus infection. J Antimicrob Chemother 2020; 74:654-662. [PMID: 30476172 PMCID: PMC6376846 DOI: 10.1093/jac/dky462] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 10/09/2018] [Accepted: 10/13/2018] [Indexed: 02/06/2023] Open
Abstract
Objectives Baloxavir marboxil (formerly S-033188) is a first-in-class, orally available, cap-dependent endonuclease inhibitor licensed in Japan and the USA for the treatment of influenza virus infection. We evaluated the efficacy of delayed oral treatment with baloxavir marboxil in combination with a neuraminidase inhibitor in a mouse model of lethal influenza virus infection. Methods The inhibitory potency of baloxavir acid (the active form of baloxavir marboxil) in combination with neuraminidase inhibitors was tested in vitro. The therapeutic effects of baloxavir marboxil and oseltamivir phosphate, or combinations thereof, were evaluated in mice lethally infected with influenza virus A/PR/8/34; treatments started 96 h post-infection. Results Combinations of baloxavir acid and neuraminidase inhibitor exhibited synergistic potency against viral replication by means of inhibition of cytopathic effects in vitro. In mice, baloxavir marboxil monotherapy (15 or 50 mg/kg twice daily) significantly and dose-dependently reduced virus titre 24 h after administration and completely prevented mortality, whereas oseltamivir phosphate treatments were not as effective. In this model, a suboptimal dose of baloxavir marboxil (0.5 mg/kg twice daily) in combination with oseltamivir phosphate provided additional efficacy compared with monotherapy in terms of virus-induced mortality, elevation of cytokine/chemokine levels and pathological changes in the lung. Conclusions Baloxavir marboxil monotherapy with 96 h-delayed oral dosing achieved drastic reductions in virus titre, inflammatory response and mortality in a mouse model. Combination treatment with baloxavir acid and oseltamivir acid in vitro and baloxavir marboxil and oseltamivir phosphate in mice produced synergistic responses against influenza virus infections, suggesting that treating humans with the combination may be beneficial.
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Affiliation(s)
- Keita Fukao
- Drug Discovery & Disease Research Laboratory, Shionogi & Co., Ltd., Osaka, Japan
| | - Takeshi Noshi
- Drug Discovery & Disease Research Laboratory, Shionogi & Co., Ltd., Osaka, Japan
| | - Atsuko Yamamoto
- Drug Discovery & Disease Research Laboratory, Shionogi & Co., Ltd., Osaka, Japan
| | - Mitsutaka Kitano
- Drug Discovery & Disease Research Laboratory, Shionogi & Co., Ltd., Osaka, Japan
| | - Yoshinori Ando
- Drug Discovery & Disease Research Laboratory, Shionogi & Co., Ltd., Osaka, Japan
| | - Takahiro Noda
- Shionogi TechnoAdvance Research, Co., Ltd., Osaka, Japan
| | - Kaoru Baba
- Shionogi TechnoAdvance Research, Co., Ltd., Osaka, Japan
| | | | - Naoko Higuchi
- Drug Discovery & Disease Research Laboratory, Shionogi & Co., Ltd., Osaka, Japan
| | - Minoru Ikeda
- Drug Discovery & Disease Research Laboratory, Shionogi & Co., Ltd., Osaka, Japan
| | - Takao Shishido
- Drug Discovery & Disease Research Laboratory, Shionogi & Co., Ltd., Osaka, Japan
| | - Akira Naito
- Drug Discovery & Disease Research Laboratory, Shionogi & Co., Ltd., Osaka, Japan
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15
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Oh J, Minami M, Ikeda S, Takatsuki S, Oonishi N, Higuchi N, Okada A, Kimura J, Koyabu D. Non-Invasive Age Estimation by Cranial Suture Closure in Japanese Sika Deer (Cervus nippon). Mammal Study 2019. [DOI: 10.3106/ms2018-0065] [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] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Jinwoo Oh
- Department of Anatomy and Cell Biology, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Republic of Korea
| | - Masato Minami
- Department of Animal Science and Biotechnology, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan
| | - Suzuna Ikeda
- Department of Animal Science and Biotechnology, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan
| | - Seiki Takatsuki
- The Life Museum of Azabu University, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan
| | - Nobumasa Oonishi
- Eco-plan, 1-14-13 Takasu, Wakamatsu-ku, Kitakyushu, Fukuoka 808-0146, Japan
| | - Naoko Higuchi
- NPO Institute for Biodiversity Research and Education “Earthworm”, 1549-3-1 Oiwake, Karuizawa, Nagano, Japan
| | - Ayumi Okada
- Department of Environmental Bioscience, School of Veterinary Medicine, Kitasato University, 23-35-1 Higashi, Towada, Aomori 034-8628, Japan
| | - Junpei Kimura
- Department of Anatomy and Cell Biology, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Republic of Korea
| | - Daisuke Koyabu
- Department of Humanities and Sciences, Musashino Art University, 1-736 Ogawa-cho, Kodaira, Tokyo 187-8505, Japan
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16
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Ikuta T, Matsuo K, Harada K, Nakashima M, Hobara T, Higuchi N, Higuchi F, Otsuki K, Shibata T, Watanuki T, Matsubara T, Yamagata H, Watanabe Y. Disconnectivity between Dorsal Raphe Nucleus and Posterior Cingulate Cortex in Later Life Depression. Front Aging Neurosci 2017; 9:236. [PMID: 28824410 PMCID: PMC5539218 DOI: 10.3389/fnagi.2017.00236] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [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] [Received: 04/20/2017] [Accepted: 07/06/2017] [Indexed: 01/15/2023] Open
Abstract
The dorsal raphe nucleus (DRN) has been repeatedly implicated as having a significant relationship with depression, along with its serotoninergic innervation. However, functional connectivity of the DRN in depression is not well understood. The current study aimed to isolate functional connectivity of the DRN distinct in later life depression (LLD) compared to a healthy age-matched population. Resting state functional magnetic resonance imaging (rsfMRI) data from 95 participants (33 LLD and 62 healthy) were collected to examine functional connectivity from the DRN to the whole brain in voxel-wise fashion. The posterior cingulate cortex (PCC) bilaterally showed significantly smaller connectivity in the LLD group than the control group. The DRN to PCC connectivity did not show any association with the depressive status. The findings implicate that the LLD involves disruption of serotoninergic input to the PCC, which has been suggested to be a part of the reduced default mode network in depression.
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Affiliation(s)
- Toshikazu Ikuta
- Department of Communication Sciences and Disorders, School of Applied Sciences, University of MississippiUniversity, MS, United States
| | - Koji Matsuo
- Division of Neuropsychiatry, Department of Neuroscience, Graduate School of Medicine, Yamaguchi UniversityUbe, Japan
| | - Kenichiro Harada
- Division of Neuropsychiatry, Department of Neuroscience, Graduate School of Medicine, Yamaguchi UniversityUbe, Japan
| | - Mami Nakashima
- Division of Neuropsychiatry, Department of Neuroscience, Graduate School of Medicine, Yamaguchi UniversityUbe, Japan.,Nagato-Ichinomiya HospitalShimonoseki, Japan
| | - Teruyuki Hobara
- Division of Neuropsychiatry, Department of Neuroscience, Graduate School of Medicine, Yamaguchi UniversityUbe, Japan.,Department of Psychiatry, Yamaguchi Grand Medical CenterHofu, Japan
| | - Naoko Higuchi
- Division of Neuropsychiatry, Department of Neuroscience, Graduate School of Medicine, Yamaguchi UniversityUbe, Japan
| | - Fumihiro Higuchi
- Division of Neuropsychiatry, Department of Neuroscience, Graduate School of Medicine, Yamaguchi UniversityUbe, Japan
| | - Koji Otsuki
- Division of Neuropsychiatry, Department of Neuroscience, Graduate School of Medicine, Yamaguchi UniversityUbe, Japan
| | - Tomohiko Shibata
- Division of Neuropsychiatry, Department of Neuroscience, Graduate School of Medicine, Yamaguchi UniversityUbe, Japan.,Shinwaen HospitalOnoda, Japan
| | - Toshio Watanuki
- Division of Neuropsychiatry, Department of Neuroscience, Graduate School of Medicine, Yamaguchi UniversityUbe, Japan
| | - Toshio Matsubara
- Division of Neuropsychiatry, Department of Neuroscience, Graduate School of Medicine, Yamaguchi UniversityUbe, Japan.,Health Administration Center, Yamaguchi University Organization for University EducationYamaguchi City, Japan
| | - Hirotaka Yamagata
- Division of Neuropsychiatry, Department of Neuroscience, Graduate School of Medicine, Yamaguchi UniversityUbe, Japan
| | - Yoshifumi Watanabe
- Division of Neuropsychiatry, Department of Neuroscience, Graduate School of Medicine, Yamaguchi UniversityUbe, Japan
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17
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Harada K, Matsuo K, Nakashima M, Hobara T, Higuchi N, Higuchi F, Nakano M, Otsuki K, Shibata T, Watanuki T, Matsubara T, Fujita Y, Shimoji K, Yamagata H, Watanabe Y. Disrupted orbitomedial prefrontal limbic network in individuals with later-life depression. J Affect Disord 2016; 204:112-9. [PMID: 27344619 DOI: 10.1016/j.jad.2016.06.031] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 06/09/2016] [Accepted: 06/11/2016] [Indexed: 11/25/2022]
Abstract
BACKGROUND Depression in old age is an increasing contributor to poor health and accompanying health care costs. Although there is an abundance of literature on later-life depression (LLD), the neural correlates have not been clarified. The aim of this study was to determine whether patients with LLD show abnormal gray matter volume (GMV) and white matter integrity by using multiple image analysis methods. METHODS The study included 45 patients with LLD and 61 healthy participants who were matched for age, sex, years of education, and vascular risk factors. GMV was examined using voxel-based morphometry, while the white matter integrity was determined by tract-based spatial statistics and tract-specific analysis, which were obtained from high-resolution magnetic resonance images. RESULTS Patients with LLD showed significantly less GMV in the orbitofrontal cortex, anterior cingulate, insula, amygdala, and temporal regions, as well as higher fractional anisotropy in the uncinate fasciculus, compared with healthy participants. Patients with LLD who had reduced orbitofrontal and insular GMV had more severe clinical variables. The reduced orbitofrontal GMV was associated with higher fractional anisotropy in the uncinate fasciculus. LIMITATION The effects of medication should also be considered when interpreting the results of this study. CONCLUSION Our results suggest that regional GMV is linked to white matter integrity of the uncinate fasciculus in the orbitomedial prefrontal limbic network, and the disruption of this network may be involved in the pathophysiology of LLD.
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Affiliation(s)
- Kenichiro Harada
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Koji Matsuo
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan.
| | - Mami Nakashima
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan; Nagato-ichinomiya Hospital, Shimonoseki, Yamaguchi, Japan
| | - Teruyuki Hobara
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan; Department of Psychiatry, Yamaguchi Grand Medical Center, Hofu, Yamaguchi, Japan
| | - Naoko Higuchi
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Fumihiro Higuchi
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Masayuki Nakano
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan; Katakura Hospital, Ube, Yamaguchi, Japan
| | - Koji Otsuki
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan; Konan Hospital, Matsue, Shimane, Japan
| | - Tomohiko Shibata
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan; Shinwaen Hospital, Onoda, Yamaguchi, Japan
| | - Toshio Watanuki
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Toshio Matsubara
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan; Health Administration Center, Yamaguchi University Organization for University Education, Yamaguchi, Yamaguchi, Japan
| | - Yusuke Fujita
- Department of Biomolecular Engineering Applied Molecular Bioscience, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Keigo Shimoji
- Department of Radiology, Tokyo Metropolitan Geriatric Hospital, Tokyo, Japan
| | - Hirotaka Yamagata
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Yoshifumi Watanabe
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
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Miura H, Kizawa Y, Bito S, Onozawa S, Shimizu T, Higuchi N, Goto Y, Takanashi S, Kubokawa N, Senda K, Nishikawa M, Harada A, Toba K. P-88 Benefits of the Japanese version advance care planning facilitator education program. BMJ Support Palliat Care 2015. [DOI: 10.1136/bmjspcare-2015-000978.217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Muro T, Higuchi N, Imamura M, Nakagawa H, Honda M, Nakao K, Izumikawa K, Sasaki H, Kitahara T. Post-operative infection of endoscopic submucosal dissection of early colorectal neoplasms: a case-controlled study using a Japanese database. J Clin Pharm Ther 2015; 40:573-577. [PMID: 26249257 DOI: 10.1111/jcpt.12313] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [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: 02/19/2015] [Accepted: 07/02/2015] [Indexed: 11/30/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVE Endoscopic submucosal dissection of early colorectal neoplasms (ESD-ECN) is known to be an operation with risk of contamination, possibly requiring pre-operative antimicrobial prophylaxis for the prevention of post-operative infection. However, an evaluation of the need for pre-operative antimicrobial prophylaxis for ESD-ECN has yet to be reported. The objective of this study was to determine whether pre-operative antimicrobial prophylaxis is associated with a reduced incidence of post-operative infection following ESD-ECN. METHODS The present retrospective case-controlled study utilized a database built from the medical records of 14 university hospitals throughout Japan. Patients who were admitted and discharged from the hospital from April 2012 to October 2013 and who had undergone ESD-ECN were included in the study. Patients who had been undergone any other operation during their course of hospitalization, and patients who were prescribed antimicrobial agents for reasons other than post-operative infection or for prophylaxis were excluded. Characteristics of the study population, pre-operative antimicrobial prophylaxis and antimicrobial therapy for post-operative infection were investigated. In addition, we compared the characteristics of patients with post-operative infection (PI) and those with no post-operative infection (NPI). Univariate analyses were used to estimate the odds ratios (OR) and 95% confidence intervals (95% CI). RESULTS AND DISCUSSION We obtained the records of 522 patients who had undergone ESD-ECN from the database. After application of exclusion criteria, 421 patients were enrolled. The post-operative infection rate was 1·2%. Peritonitis was found most to be the most common post-operative infection (44%). Pre-operative antimicrobial prophylaxis was used for 314 patients (75%), with a median duration of 3·0 (range 1-11) days. Cefotiam was most frequently prescribed for pre-operative antimicrobial prophylaxis (56%). Antimicrobial therapies were started 1-10 days after ESD-ECN for a duration of 1-14 days. Pre-operative antimicrobial prophylaxis was not associated with post-operative infection rate, with an OR (95% CI) of 0·73 (0·08-6·61). However, digestive tract perforation was shown to be associated with post-operative infection and had an OR (95% CI) of 17·1 (1·66-176·45). WHAT IS NEW AND CONCLUSION Post-operative infection is an exceedingly rare event following ESD-ECN. Pre-operative antimicrobial prophylaxis had no significant effect on post-operative infection following ESD-ECN and thus may be unnecessary. Instead, prevention of digestive tract perforation may be more critical for the decrease in post-operative infections.
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Affiliation(s)
- T Muro
- Department of Clinical Pharmacy, Nagasaki University Hospital, Nagasaki, Japan
| | - N Higuchi
- Department of Clinical Pharmacy, Nagasaki University Hospital, Nagasaki, Japan
| | - M Imamura
- Department of Clinical Pharmacy, Nagasaki University Hospital, Nagasaki, Japan
| | - H Nakagawa
- Department of Clinical Pharmacy, Nagasaki University Hospital, Nagasaki, Japan
| | - M Honda
- Department of Medical Information, Nagasaki University Hospital, Nagasaki, Japan
| | - K Nakao
- Department of Gastroenterology and Hepatology, Nagasaki University Hospital, Nagasaki, Japan
| | - K Izumikawa
- Infection Control and Education Center, Nagasaki University Hospital, Nagasaki, Japan
| | - H Sasaki
- Department of Clinical Pharmacy, Nagasaki University Hospital, Nagasaki, Japan
| | - T Kitahara
- Department of Clinical Pharmacy, Nagasaki University Hospital, Nagasaki, Japan
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20
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Brienen RJW, Phillips OL, Feldpausch TR, Gloor E, Baker TR, Lloyd J, Lopez-Gonzalez G, Monteagudo-Mendoza A, Malhi Y, Lewis SL, Vásquez Martinez R, Alexiades M, Álvarez Dávila E, Alvarez-Loayza P, Andrade A, Aragão LEOC, Araujo-Murakami A, Arets EJMM, Arroyo L, Aymard C GA, Bánki OS, Baraloto C, Barroso J, Bonal D, Boot RGA, Camargo JLC, Castilho CV, Chama V, Chao KJ, Chave J, Comiskey JA, Cornejo Valverde F, da Costa L, de Oliveira EA, Di Fiore A, Erwin TL, Fauset S, Forsthofer M, Galbraith DR, Grahame ES, Groot N, Hérault B, Higuchi N, Honorio Coronado EN, Keeling H, Killeen TJ, Laurance WF, Laurance S, Licona J, Magnussen WE, Marimon BS, Marimon-Junior BH, Mendoza C, Neill DA, Nogueira EM, Núñez P, Pallqui Camacho NC, Parada A, Pardo-Molina G, Peacock J, Peña-Claros M, Pickavance GC, Pitman NCA, Poorter L, Prieto A, Quesada CA, Ramírez F, Ramírez-Angulo H, Restrepo Z, Roopsind A, Rudas A, Salomão RP, Schwarz M, Silva N, Silva-Espejo JE, Silveira M, Stropp J, Talbot J, ter Steege H, Teran-Aguilar J, Terborgh J, Thomas-Caesar R, Toledo M, Torello-Raventos M, Umetsu RK, van der Heijden GMF, van der Hout P, Guimarães Vieira IC, Vieira SA, Vilanova E, Vos VA, Zagt RJ. Long-term decline of the Amazon carbon sink. Nature 2015; 519:344-8. [PMID: 25788097 DOI: 10.1038/nature14283] [Citation(s) in RCA: 339] [Impact Index Per Article: 37.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Accepted: 02/04/2015] [Indexed: 11/09/2022]
Abstract
Atmospheric carbon dioxide records indicate that the land surface has acted as a strong global carbon sink over recent decades, with a substantial fraction of this sink probably located in the tropics, particularly in the Amazon. Nevertheless, it is unclear how the terrestrial carbon sink will evolve as climate and atmospheric composition continue to change. Here we analyse the historical evolution of the biomass dynamics of the Amazon rainforest over three decades using a distributed network of 321 plots. While this analysis confirms that Amazon forests have acted as a long-term net biomass sink, we find a long-term decreasing trend of carbon accumulation. Rates of net increase in above-ground biomass declined by one-third during the past decade compared to the 1990s. This is a consequence of growth rate increases levelling off recently, while biomass mortality persistently increased throughout, leading to a shortening of carbon residence times. Potential drivers for the mortality increase include greater climate variability, and feedbacks of faster growth on mortality, resulting in shortened tree longevity. The observed decline of the Amazon sink diverges markedly from the recent increase in terrestrial carbon uptake at the global scale, and is contrary to expectations based on models.
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Affiliation(s)
- R J W Brienen
- School of Geography, University of Leeds, Leeds LS2 9JT, UK
| | - O L Phillips
- School of Geography, University of Leeds, Leeds LS2 9JT, UK
| | - T R Feldpausch
- 1] School of Geography, University of Leeds, Leeds LS2 9JT, UK. [2] Geography, College of Life and Environmental Sciences, University of Exeter, Rennes Drive, Exeter EX4 4RJ, UK
| | - E Gloor
- School of Geography, University of Leeds, Leeds LS2 9JT, UK
| | - T R Baker
- School of Geography, University of Leeds, Leeds LS2 9JT, UK
| | - J Lloyd
- 1] Department of Life Sciences, Imperial College London, Silwood Park Campus, Buckhurst Road, Ascot, Berkshire SL5 7PY, UK. [2] School of Marine and Tropical Biology, James Cook University, Cairns, 4870 Queenland, Australia
| | | | - A Monteagudo-Mendoza
- Jardín Botánico de Missouri, Prolongacion Bolognesi Mz.e, Lote 6, Oxapampa, Pasco, Peru
| | - Y Malhi
- Environmental Change Institute, School of Geography and the Environment, University of Oxford, Oxford OX1 3QK, UK
| | - S L Lewis
- 1] School of Geography, University of Leeds, Leeds LS2 9JT, UK. [2] Department of Geography, University College London, Pearson Building, Gower Street, London WC1E 6BT, UK
| | - R Vásquez Martinez
- Jardín Botánico de Missouri, Prolongacion Bolognesi Mz.e, Lote 6, Oxapampa, Pasco, Peru
| | - M Alexiades
- School of Anthropology and Conservation, Marlowe Building, University of Kent, Canterbury CT1 3EH, UK
| | - E Álvarez Dávila
- Servicios Ecosistemicos y Cambio Climático, Jardín Botánico de Medellín, Calle 73 no. 51 D-14, C.P. 050010, Medellín, Colombia
| | - P Alvarez-Loayza
- Center for Tropical Conservation, Duke University, Box 90381, Durham, North Carolina 27708, USA
| | - A Andrade
- Biological Dynamics of Forest Fragment Project (INPA &STRI), C.P. 478, Manaus AM 69011-970, Brazil
| | - L E O C Aragão
- 1] Geography, College of Life and Environmental Sciences, University of Exeter, Rennes Drive, Exeter EX4 4RJ, UK. [2] National Institute for Space Research (INPE), Av. Dos Astronautas, 1758, São José dos Campos, São Paulo 12227-010, Brazil
| | - A Araujo-Murakami
- Museo de Historia Natural Noel Kempff Mercado, Universidad Autonoma Gabriel Rene Moreno, Casilla 2489, Av. Irala 565, Santa Cruz, Bolivia
| | - E J M M Arets
- Alterra, Wageningen University and Research Centre, PO Box 47, 6700 AA Wageningen, The Netherlands
| | - L Arroyo
- Museo de Historia Natural Noel Kempff Mercado, Universidad Autonoma Gabriel Rene Moreno, Casilla 2489, Av. Irala 565, Santa Cruz, Bolivia
| | - G A Aymard C
- UNELLEZ-Guanare, Programa de Ciencias del Agro y el Mar, Herbario Universitario (PORT), Mesa de Cavacas, Estado Portuguesa, 3350 Venezuela
| | - O S Bánki
- Biodiversiteit en Ecosysteem Dynamica, University of Amsterdam, Postbus 94248, 1090 GE Amsterdam, The Netherlands
| | - C Baraloto
- 1] Institut National de la Recherche Agronomique, UMR EcoFoG, Campus Agronomique, 97310 Kourou, French Guiana. [2] International Center for Tropical Botany, Department of Biological Sciences, Florida International University, Miami, Florida 33199, USA
| | - J Barroso
- Universidade Federal do Acre, Campus de Cruzeiro do Sul, Rio Branco, Brazil
| | - D Bonal
- INRA, UMR 1137 ''Ecologie et Ecophysiologie Forestiere'' 54280 Champenoux, France
| | - R G A Boot
- School of Geography, University of Leeds, Leeds LS2 9JT, UK
| | - J L C Camargo
- Biological Dynamics of Forest Fragment Project (INPA &STRI), C.P. 478, Manaus AM 69011-970, Brazil
| | - C V Castilho
- Embrapa Roraima, Caixa Postal 133, Boa Vista, RR, CEP 69301-970, Brazil
| | - V Chama
- Universidad Nacional San Antonio Abad del Cusco, Av. de la Cultura N° 733, Cusco, Peru
| | - K J Chao
- 1] School of Geography, University of Leeds, Leeds LS2 9JT, UK. [2] International Master Program of Agriculture, College of Agriculture and Natural Resources, National Chung Hsing University, Taichung 40227, Taiwan
| | - J Chave
- Université Paul Sabatier CNRS, UMR 5174 Evolution et Diversité Biologique, Bâtiment 4R1, 31062 Toulouse, France
| | - J A Comiskey
- Northeast Region Inventory and Monitoring Program, National Park Service, 120 Chatham Lane, Fredericksburg, Virginia 22405, USA
| | - F Cornejo Valverde
- Andes to Amazon Biodiversity Program, Puerto Maldonado, Madre de Dios, Peru
| | - L da Costa
- Universidade Federal do Para, Centro de Geociencias, Belem, CEP 66017-970 Para, Brazil
| | - E A de Oliveira
- Universidade do Estado de Mato Grosso, Campus de Nova Xavantina, Caixa Postal 08, CEP 78.690-000, Nova Xavantina MT, Brazil
| | - A Di Fiore
- Department of Anthropology, University of Texas at Austin, SAC Room 5.150, 2201 Speedway Stop C3200, Austin, Texas 78712, USA
| | - T L Erwin
- Department of Entomology, Smithsonian Institution, PO Box 37012, MRC 187, Washington DC 20013-7012, USA
| | - S Fauset
- School of Geography, University of Leeds, Leeds LS2 9JT, UK
| | - M Forsthofer
- Universidade do Estado de Mato Grosso, Campus de Nova Xavantina, Caixa Postal 08, CEP 78.690-000, Nova Xavantina MT, Brazil
| | - D R Galbraith
- School of Geography, University of Leeds, Leeds LS2 9JT, UK
| | - E S Grahame
- School of Geography, University of Leeds, Leeds LS2 9JT, UK
| | - N Groot
- School of Geography, University of Leeds, Leeds LS2 9JT, UK
| | - B Hérault
- Cirad, UMR Ecologie des Forêts de Guyane, Campus Agronomique, 97310 Kourou, French Guiana
| | - N Higuchi
- Biological Dynamics of Forest Fragment Project (INPA &STRI), C.P. 478, Manaus AM 69011-970, Brazil
| | - E N Honorio Coronado
- 1] School of Geography, University of Leeds, Leeds LS2 9JT, UK. [2] Instituto de Investigaciones de la Amazonía Peruana, Av. A. José Quiñones km 2.5, Iquitos, Peru
| | - H Keeling
- School of Geography, University of Leeds, Leeds LS2 9JT, UK
| | - T J Killeen
- World Wildlife Fund, 1250 24th Street NW, Washington DC 20037, USA
| | - W F Laurance
- Centre for Tropical Environmental and Sustainability Science (TESS) and School of Marine and Environmental Sciences, James Cook University, Cairns, Queensland 4878, Australia
| | - S Laurance
- Centre for Tropical Environmental and Sustainability Science (TESS) and School of Marine and Environmental Sciences, James Cook University, Cairns, Queensland 4878, Australia
| | - J Licona
- Instituto Boliviano de Investigación Forestal, C.P. 6201, Santa Cruz de la Sierra, Bolivia
| | - W E Magnussen
- National Institute for Research in Amazonia (INPA), C.P. 478, Manaus, Amazonas, CEP 69011-970, Brazil
| | - B S Marimon
- Universidade do Estado de Mato Grosso, Campus de Nova Xavantina, Caixa Postal 08, CEP 78.690-000, Nova Xavantina MT, Brazil
| | - B H Marimon-Junior
- Universidade do Estado de Mato Grosso, Campus de Nova Xavantina, Caixa Postal 08, CEP 78.690-000, Nova Xavantina MT, Brazil
| | - C Mendoza
- 1] FOMABO, Manejo Forestal en las Tierras Tropicales de Bolivia, Sacta, Bolivia. [2] Escuela de Ciencias Forestales (ESFOR), Universidad Mayor de San Simón (UMSS), Sacta, Bolivia
| | - D A Neill
- Universidad Estatal Amazónica, Facultad de Ingeniería Ambiental, Paso lateral km 2 1/2 via Napo, Puyo, Pastaza, Ecuador
| | - E M Nogueira
- National Institute for Research in Amazonia (INPA), C.P. 2223, 69080-971, Manaus, Amazonas, Brazil
| | - P Núñez
- Universidad Nacional San Antonio Abad del Cusco, Av. de la Cultura N° 733, Cusco, Peru
| | - N C Pallqui Camacho
- Universidad Nacional San Antonio Abad del Cusco, Av. de la Cultura N° 733, Cusco, Peru
| | - A Parada
- Museo de Historia Natural Noel Kempff Mercado, Universidad Autonoma Gabriel Rene Moreno, Casilla 2489, Av. Irala 565, Santa Cruz, Bolivia
| | - G Pardo-Molina
- Universidad Autonoma del Beni, Campus Universitario, Av. Ejército Nacional, Riberalta, Beni, Bolivia
| | - J Peacock
- School of Geography, University of Leeds, Leeds LS2 9JT, UK
| | - M Peña-Claros
- 1] Instituto Boliviano de Investigación Forestal, C.P. 6201, Santa Cruz de la Sierra, Bolivia. [2] Forest Ecology and Forest Management Group, Wageningen University, PO Box 47, 6700 AA Wageningen, The Netherlands
| | - G C Pickavance
- School of Geography, University of Leeds, Leeds LS2 9JT, UK
| | - N C A Pitman
- 1] Center for Tropical Conservation, Duke University, Box 90381, Durham, North Carolina 27708, USA. [2] The Field Museum, 1400 South Lake Shore Drive, Chicago, Illinois 60605-2496, USA
| | - L Poorter
- Forest Ecology and Forest Management Group, Wageningen University, PO Box 47, 6700 AA Wageningen, The Netherlands
| | - A Prieto
- Universidad Nacional de la Amazonía Peruana, Iquitos, Loreto, Peru
| | - C A Quesada
- National Institute for Research in Amazonia (INPA), C.P. 2223, 69080-971, Manaus, Amazonas, Brazil
| | - F Ramírez
- Universidad Nacional de la Amazonía Peruana, Iquitos, Loreto, Peru
| | - H Ramírez-Angulo
- Instituto de Investigaciones para el Desarrollo Forestal (INDEFOR), Universidad de Los Andes, Facultad de Ciencias Forestales y Ambientales, Conjunto Forestal, C.P. 5101, Mérida, Venezuela
| | - Z Restrepo
- Servicios Ecosistemicos y Cambio Climático, Jardín Botánico de Medellín, Calle 73 no. 51 D-14, C.P. 050010, Medellín, Colombia
| | - A Roopsind
- Iwokrama International Centre for Rainforest Conservation and Development, 77 High Street Kingston, Georgetown, Guyana
| | - A Rudas
- School of Geography, University of Leeds, Leeds LS2 9JT, UK
| | - R P Salomão
- Museu Paraense Emilio Goeldi, Av. Magalhães Barata, 376 - São Braz, CEP 66040-170, Belém PA, Brazil
| | - M Schwarz
- School of Geography, University of Leeds, Leeds LS2 9JT, UK
| | - N Silva
- UFRA, Av. Presidente Tancredo Neves 2501, CEP 66.077-901, Belém, Pará, Brazil
| | - J E Silva-Espejo
- Universidad Nacional San Antonio Abad del Cusco, Av. de la Cultura N° 733, Cusco, Peru
| | - M Silveira
- Museu Universitário, Universidade Federal do Acre, Rio Branco AC 69910-900, Brazil
| | - J Stropp
- European Commission - DG Joint Research Centre, Institute for Environment and Sustainability, Via Enrico Fermi 274, 21010 Ispra, Italy
| | - J Talbot
- School of Geography, University of Leeds, Leeds LS2 9JT, UK
| | - H ter Steege
- 1] Naturalis Biodiversity Center, PO Box, 2300 RA, Leiden, The Netherlands. [2] Ecology and Biodiversity Group, Utrecht University, PO Box 80084, 3508 TB Utrecht, The Netherlands
| | - J Teran-Aguilar
- Museo de Historia Natural Alcide D'Orbigny, Av. Potosi no 1458, Cochabamba, Bolivia
| | - J Terborgh
- Center for Tropical Conservation, Duke University, Box 90381, Durham, North Carolina 27708, USA
| | - R Thomas-Caesar
- UFRA, Av. Presidente Tancredo Neves 2501, CEP 66.077-901, Belém, Pará, Brazil
| | - M Toledo
- Instituto Boliviano de Investigación Forestal, C.P. 6201, Santa Cruz de la Sierra, Bolivia
| | - M Torello-Raventos
- 1] School of Earth and Environmental Science, James Cook University, Cairns, Queensland 4870, Australia. [2] Centre for Tropical Environmental and Sustainability Science (TESS) and School of Marine and Tropical Biology, James Cook University, Cairns, Queensland 4878, Australia
| | - R K Umetsu
- Universidade do Estado de Mato Grosso, Campus de Nova Xavantina, Caixa Postal 08, CEP 78.690-000, Nova Xavantina MT, Brazil
| | - G M F van der Heijden
- 1] Northumbria University, School of Geography, Ellison Place, Newcastle upon Tyne, Newcastle NE1 8ST, UK. [2] University of Wisconsin, Milwaukee, Wisconsin 53202, USA. [3] Smithsonian Tropical Research Institute, Apartado Postal 0843-03092, Panamá, Republic of Panama
| | - P van der Hout
- Van der Hout Forestry Consulting, Jan Trooststraat 6, 3078 HP Rotterdam, The Netherlands
| | - I C Guimarães Vieira
- Museu Paraense Emilio Goeldi, Av. Magalhães Barata, 376 - São Braz, CEP 66040-170, Belém PA, Brazil
| | - S A Vieira
- Universidade Estadual de Campinas, NEPAM, Rua dos Flamboyants, 155- Cidade Universitária Zeferino Vaz, Campinas, CEP 13083-867, Sao Paulo, Brazil
| | - E Vilanova
- Instituto de Investigaciones para el Desarrollo Forestal (INDEFOR), Universidad de Los Andes, Facultad de Ciencias Forestales y Ambientales, Conjunto Forestal, C.P. 5101, Mérida, Venezuela
| | - V A Vos
- 1] Universidad Autonoma del Beni, Campus Universitario, Av. Ejército Nacional, Riberalta, Beni, Bolivia. [2] Centro de Investigación y Promoción del Campesinado, regional Norte Amazónico, C/ Nicanor Gonzalo Salvatierra N° 362, Casilla 16, Riberalta, Bolivia
| | - R J Zagt
- Tropenbos International, PO Box 232, 6700 AE Wageningen, The Netherlands
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Kato A, Ziegler A, Higuchi N, Nakata K, Nakamura H, Ohno N. Aetiology, incidence and morphology of the C-shaped root canal system and its impact on clinical endodontics. Int Endod J 2014; 47:1012-33. [PMID: 24483229 PMCID: PMC4258081 DOI: 10.1111/iej.12256] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2013] [Accepted: 01/27/2014] [Indexed: 01/15/2023]
Abstract
The C-shaped root canal constitutes an unusual root morphology that can be found primarily in mandibular second permanent molars. Due to the complexity of their structure, C-shaped root canal systems may complicate endodontic interventions. A thorough understanding of root canal morphology is therefore imperative for proper diagnosis and successful treatment. This review aims to summarize current knowledge regarding C-shaped roots and root canals, from basic morphology to advanced endodontic procedures. To this end, a systematic search was conducted using the MEDLINE, BIOSIS, Cochrane Library, EMBASE, Google Scholar, Web of Science, PLoS and BioMed Central databases, and many rarely cited articles were included. Furthermore, four interactive 3D models of extracted teeth are introduced that will allow for a better understanding of the complex C-shaped root canal morphology. In addition, the present publication includes an embedded best-practice video showing an exemplary root canal procedure on a tooth with a pronounced C-shaped root canal. The survey of this unusual structure concludes with a number of suggestions concerning future research efforts.
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Affiliation(s)
- A Kato
- Department of Oral Anatomy, School of Dentistry, Aichi Gakuin University, Aichi, Japan
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Watanuki T, Matsubara T, Higuchi N, Higuchi F, Inoue K, Otsuchi H, Tsuruta R, Watanabe Y. [Clinical examination of 3 patients with delayed neuropsychiatric encephalopathy induced by carbon monoxide poisoning, who recovered from severe neurocognitive impairment by repetitive hyperbaric oxygen therapy]. Seishin Shinkeigaku Zasshi 2014; 116:659-669. [PMID: 25244729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We performed hyperbaric oxygen (HBO) therapy for 3 patients with delayed neuropsychiatric encephalopathy induced by carbon monoxide (CO) poisoning. All patients were male and around 50 years old, and they had not received HBO therapy within 24 h after CO poisoning, even though they showed severe consciousness disturbance. In these patients, delayed neuropsychiatric encephalopathy appeared about 25 days after acute CO poisoning, and HBO therapy was initiated within 8 days after disease onset. Although the condition of 2 of the patients worsened initially, they showed significant improvement of neurocognitive impairment after 30 sessions of HBO therapy. The clinical courses of these patients suggest that the effect of HBO therapy can be evaluated after 30 sessions. To evaluate the validity of the indices of the clinical effect of HBO therapy, we performed brain magnetic resonance imaging, single photon emission computed tomography, electroencephalography (EEG), and neurocognitive tests (HDS-R, and Wechsler Adult Intelligence Scale-Revised or III). Our results showed that changes in EEG signals and neurocognitive tests were closely correlated with the patients' clinical courses.
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Higuchi N, Ohnishi N, Minami M. Temporal Pattern of Estrus in Free-Ranging Sika Deer (Cervus nippon). Mammal Study 2013. [DOI: 10.3106/041.038.0402] [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: 11/18/2022]
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Kubo MO, Minami M, Higuchi N, Ohnishi N, Okada A, Kaji K, Ohba T, Hosoi E, Koizumi T, Takatsuki S. Female sika deer have evolved larger incisors than males under relaxed selection against rapid tooth wear. Biol J Linn Soc Lond 2013. [DOI: 10.1111/bij.12128] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mugino O. Kubo
- The University Museum; The University of Tokyo; 7-3-1 Hongo; Bunkyo-ku; Tokyo; 113-0033; Japan
| | - Masato Minami
- Laboratory of Wildlife Ecology; Azabu University; 1-17-71 Fuchinobe; Sagamihara; Kanagawa; 229-8501; Japan
| | - Naoko Higuchi
- NPO Earthworm for Bio-Diversity; 1549-3-1 Oiwake; Karuizawa; Nagano; 389-0115; Japan
| | - Nobumasa Ohnishi
- Eco-Planning Research Co. Ltd; 2-28-5 Sakae-cho; Higashimarayama; Tokyo; 189-0013; Japan
| | - Ayumi Okada
- Department of Environmental Bioscience; School of Veterinary Medicine; Kitasato University; 23-35-1 Higashi; Towada; Aomori; 034-8628; Japan
| | - Koichi Kaji
- Department of Ecoregion Science; Laboratory of Wildlife Conservation; Tokyo University of Agriculture and Technology; 3-5-8 Saiwaicho; Fuchu; Tokyo; 183-8509; Japan
| | - Takahiro Ohba
- Forestry and Forest Products Research Center; Shizuoka Research Institute of Agriculture and Forestry; 2542-8 Negata, Hamakita-ku; Hamamatsu; Shizuoka; 434-0016; Japan
| | - Eiji Hosoi
- Department of Biological and Environmental Sciences; Faculty of Agriculture; Yamaguchi University; 1677-1 Yoshida; Yamaguchi; 753-8515; Japan
| | - Toru Koizumi
- Wildlife Ecology Laboratory; Forestry and Forest Products Research Institute; 1 Matsunosato; Tsukuba; Ibaraki; 305-8687; Japan
| | - Seiki Takatsuki
- Laboratory of Wildlife Ecology; Azabu University; 1-17-71 Fuchinobe; Sagamihara; Kanagawa; 229-8501; Japan
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Moriguchi K, Mitamura Y, Iwami J, Hasegawa Y, Higuchi N, Murakami Y, Maeda H, Yoshimura F, Nakamura H, Ohno N. Energy filtering transmission electron microscopy immunocytochemistry and antigen retrieval of surface layer proteins from Tannerella forsythensis using microwave or autoclave heating with citraconic anhydride. Biotech Histochem 2012; 87:485-93. [PMID: 22984898 PMCID: PMC3496188 DOI: 10.3109/10520295.2012.687117] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Tannerella forsythensis (Bacteroides forsythus), an anaerobic Gram-negative species of bacteria that plays a role in the progression of periodontal disease, has a unique bacterial protein profile. It is characterized by two unique protein bands with molecular weights of more than 200 kDa. It also is known to have a typical surface layer (S-layer) consisting of regularly arrayed subunits outside the outer membrane. We examined the relationship between high molecular weight proteins and the S-layer using electron microscopic immunolabeling with chemical fixation and an antigen retrieval procedure consisting of heating in a microwave oven or autoclave with citraconic anhydride. Immunogold particles were localized clearly at the outermost cell surface. We also used energy-filtering transmission electron microscopy (EFTEM) to visualize 3, 3'-diaminobenzidine tetrahydrochloride (DAB) reaction products after microwave antigen retrieval with 1% citraconic anhydride. The three-window method for electron spectroscopic images (ESI) of nitrogen by the EFTEM reflected the presence of moieties demonstrated by the DAB reaction with horseradish peroxidase (HRP)-conjugated secondary antibodies instead of immunogold particles. The mapping patterns of net nitrogen were restricted to the outermost cell surface.
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Affiliation(s)
- K Moriguchi
- Department of Oral Anatomy, Division of Oral Infections and Health Sciences, Asahi University School ofDentistry, 1851 Hozumi, Mizuho, Gifu 501 - 0296 Japan.
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Takahashi G, Tanaka H, Higuchi N, Ikeda M, Inagaki N, Shichijo M. The potential role of prostaglandin D2 in nasal congestion observed in a guinea pig model of allergic rhinitis. Int Arch Allergy Immunol 2012; 158:359-68. [PMID: 22472859 DOI: 10.1159/000334555] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2011] [Accepted: 10/19/2011] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Allergic rhinitis is the most common allergic disease, displaying the typical nasal symptom of congestion. Prostaglandin D(2) (PGD(2)), a chemical mediator released in large amounts by mast cells upon allergic stimulation in humans, is known to be involved in nasal congestion. However, the mechanism by which this congestion occurs remains unclear. METHODS The effect of PGD(2) on the nasal airflow in guinea pigs was measured using a noninvasive approach that avoided any anesthetic effect. Isometric tension of isolated nasal mucosa and the nasal vascular corrosion resin cast technique were used to clarify the area of nasal mucosal vessels affected by PGD(2), and to examine the mechanism of PGD(2)-induced nasal congestion. Moreover, the involvement of second messengers in PGD(2)-induced mucosal relaxation was investigated. RESULTS PGD(2) induced an increase in intranasal pressure in a guinea pig model of rhinitis. Additionally, sinusoidal microvessel dilatation appeared around the septum using the vascular corrosion resin cast technique in the nasal mucosa. Moreover, relaxation of the nasal mucosa following stimulation of the prostanoid DP-1 receptor was associated with cAMP levels in the tissue. CONCLUSIONS PGD(2)-induced nasal congestion is caused by direct dilatation of the sinusoid vessels through the increase of cAMP levels in the nasal mucosa, demonstrating that the mechanism of PGD(2)-induced nasal congestion is different from other chemical mediators. Consequently, antagonists for the prostanoid DP-1 receptor would be an alternative approach for the relief of nasal congestion. Alternatively, the combined administration with antagonists for other mediators involved in nasal congestion may also be a valuable therapy for allergic rhinitis.
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Affiliation(s)
- Go Takahashi
- United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Gifu, Japan
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Abstract
The costs of parturition and lactation of female sika deer on Kinkazan Island (9.6 km(2) in size), northern Japan, which live at a high density (about 50 deer/km(2)), were evaluated by comparison of body weights of 481 females measured during a 15 year study (1993-2008). Weight data were chosen from only females that did not give birth in the preceding year. The mean body weight of females that did not give birth ("yelds") was significantly lower (P < 0.001) than that of females who gave birth ("milks"); yelds' body weight was 93.1% and 83.5% that of milks in the preceding and parturition years, respectively. The yelds increased in body weight by the following March by 8.2% (P < 0.001), whereas milks did not. Among the milks, those whose fawns survived until the following May ("rearing milks") lost body weight by 14.9% (P < 0.001). Milks who lost fawns within a week after birth ("early fawn-less milks") did not lose body weight (P = 0.583), while those whose fawns died after the first autumn but died before May ("late fawn-less milks") lost body weight by 19.9% (P < 0.001). These results indicate that sika deer females do not enter estrus unless they are heavy enough, and that both parturition and rearing are costly for sika deer mothers living in high-density conditions.
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Affiliation(s)
- Masato Minami
- School of Veterinary Sciences, Azabu University, Sagamihara, Kanagawa, Japan
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Kojo N, Higuchi N, Minami M, Ohnishi N, Okada A, Takatsuki S, Tamate HB. Correlation between Genetic Diversity and Neonatal Weight of Sika Deer (Cervus nippon) Fawns. Mammal Study 2012. [DOI: 10.3106/041.037.0102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Motomura Y, Akahoshi K, Matsui N, Kubokawa M, Higuchi N, Oda M, Endo S, Kashiwabara Y, Okamoto R, Nakamura K. Clinical and endoscopic characteristics of acute haemorrhagic rectal ulcer, and endoscopic haemostatic treatment: a retrospective study of 95 patients. Colorectal Dis 2010; 12:e320-5. [PMID: 19863598 DOI: 10.1111/j.1463-1318.2009.02091.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [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: 02/08/2023]
Abstract
AIM Acute haemorrhagic rectal ulcer (AHRU) is characterized by sudden onset of painless and massive rectal bleeding in elderly bedridden patients who have serious illness. Endoscopic diagnosis and management of AHRU is, however, still controversial. We retrospectively investigated 95 AHRU patients to elucidate the clinical characteristics, endoscopic findings and haemostatic strategies. METHOD Between January 1999 and March 2007, 95 patients were diagnosed with AHRU in our hospital. Medical records and colonoscopy files were reviewed. Clinical features, colonoscopic findings, haemostatic treatment and outcome of the patients were evaluated. RESULTS Eighty per cent of the patients were bedridden at the onset. The most frequent underlying disorder was cerebrovascular disease (36.8%). Hypoalbuminaemia (< 3.5 g/dl) was seen in 92.6% of the patients. Endoscopic findings of AHRU were classified as circumferential ulcer (41.1%), linear or nearly round small ulcer(s) (44.2%), circumferential and small ulcer(s) (7.4%) and Dieulafoy-like ulcer (7.4%). Primary endoscopic haemostatic treatment was performed in 45.3% of cases. Recurrent bleeding occurred in 24.2% of patients. Permanent haemostasis was achieved by secondary endoscopic treatment in 82.6% of re-bleeding patients. CONCLUSION Understanding the typical clinical and endoscopic findings and careful endoscopic examination are important for the accurate diagnosis of AHRU, and endoscopic haemostatic therapy may be effective for bleeding patients.
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Affiliation(s)
- Y Motomura
- Department of Gastroenterology, Aso Iizuka Hospital, Iizuka, Japan.
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30
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Higuchi N, Akahoshi K, Honda K, Matsui N, Kubokawa M, Motomura Y, Nakamura K, Takayanagi R. Diagnosis of a small splenic artery aneurysm mimicking a gastric submucosal tumor on endoscopic ultrasound. Endoscopy 2010; 42 Suppl 2:E107-8. [PMID: 20306394 DOI: 10.1055/s-0029-1243940] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- N Higuchi
- Department of Gastroenterology, Aso Iizuka Hospital, Yoshio, Iizuka, Japan
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31
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Tanaka Y, Motomura Y, Akahoshi K, Nakama N, Osoegawa T, Kashiwabara Y, Chaen T, Higuchi N, Kubokawa M, Nishida K, Yukaya T, Oya M, Nakamura K. Capsule endoscopic detection of bleeding Meckel's diverticulum, with capsule retention in the diverticulum. Endoscopy 2010; 42 Suppl 2:E199-200. [PMID: 20845270 DOI: 10.1055/s-0030-1255696] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Y Tanaka
- Department of Gastroenterology, Aso Iizuka Hospital, Yoshio-machi, Iizuka, Japan.
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Hamagami KI, Sakurai Y, Shintani N, Higuchi N, Ikeda K, Hashimoto H, Suzuki A, Kiyama H, Baba A. Over-expression of pancreatic pituitary adenylate cyclase-activating polypeptide (PACAP) aggravates cerulein-induced acute pancreatitis in mice. J Pharmacol Sci 2009; 110:451-8. [PMID: 19672038 DOI: 10.1254/jphs.09119fp] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
Development of human chronic pancreatitis is associated with intrapancreatic accumulation of pituitary adenylate cyclase-activating polypeptide (PACAP) accompanied with an altered inflammatory response (Michalski et al., Am J Physiol Gastrointest Liver Physiol. 2008;294:G50-G57). To investigate the role of pancreatic PACAP in the development of acute pancreatitis, we employed transgenic mice over-expressing PACAP in pancreatic beta-cells (PACAP-Tg). In comparison to wild-type mice, PACAP-Tg mice exhibited more severe pathophysiological signs of the cerulein-induced pancreatitis at 12 h, as evidenced by higher serum amylase and lipase levels accompanied by the exacerbation of pancreatic edema, necrosis, and inflammation. Cerulein treatment increased mRNA expression of several proinflammatory cytokines (TNFalpha, IL-1beta, and IL-6) at 12 h with similar magnitude both in wild-type and PACAP-Tg mice. In addition, the mRNA and protein levels of regenerating gene III beta (RegIIIbeta), a key factor in the pancreatic response to acute pancreatitis, were up-regulated at 24 h in wild-type mice upon cerulein administration, whereas they were attenuated in PACAP-Tg mice. These data indicate that over-expressed PACAP in pancreas enhances the cerulein-induced inflammatory response of both acinar cells, leading to aggravated acute pancreatitis, which was accompanied by a down-regulation of RegIIIbeta, an anti-inflammatory factor.
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Affiliation(s)
- Ken-ichi Hamagami
- Laboratory of Molecular Neuropharmacology, Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka, Japan
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Moriguchi K, Higuchi N, Murakami Y, Yoshimura F, Nakamura H, Ohno N. A morphological and immunolabeling study of freeze-substituted Bacteroides forsythus. Biotech Histochem 2009; 78:129-33. [PMID: 14533849 DOI: 10.1080/10520290310001593784] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
We used a rapid freezing and freeze-substitution technique without glutaraldehyde and OsO4 fixation for the electron microscopic immunocytochemical demonstration of the surface structure of Bacteroides forsythus, an anaerobic Gram-negative periodontopathogen. Cells were applied to pieces of filter paper and freeze-substituted by plunge-freezing in liquid propane, substituted in methanol containing 0.5% uranyl acetate, and infiltrated with LR White resin. The membrane ultrastructure of B. forsythus was preserved well, and the labeling density of the freeze-submitted cells was compared to a conventional processing method. Our results show the usefulness of the freeze-substitution method for immunohistochemical studies of B. forsythus.
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Affiliation(s)
- K Moriguchi
- Department of Anatomy, School of Dentistry, Aichi-Gakuin University, Nagoya, Aichi 464-8650, Japan.
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Minami M, Ohnishi N, Higuchi N, Takatsuki S. Early Mortality of Sika Deer,Cervus nippon, on Kinkazan Island, Northern Japan. Mammal Study 2009. [DOI: 10.3106/041.034.0207] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Higuchi N, Sumida Y, Nakamura K, Itaba S, Yoshinaga S, Mizutani T, Honda K, Taki K, Murao H, Ogino H, Kanayama K, Akiho H, Goto A, Segawa Y, Yao T, Takayanagi R. Impact of double-balloon endoscopy on the diagnosis of jejunoileal involvement in primary intestinal follicular lymphomas: a case series. Endoscopy 2009; 41:175-8. [PMID: 19214900 DOI: 10.1055/s-0028-1119467] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [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: 02/06/2023]
Abstract
In recent years, primary gastrointestinal follicular lymphoma has been increasingly detected in the duodenum on esophagogastroduodenoscopy (EGD). Primary gastrointestinal follicular lymphomas are frequently distributed to multiple sites in the gastrointestinal tract. Therefore, investigation into the spread of follicular lymphomas in the small bowel is important in order to determine the most appropriate treatment strategy. The performance of double-balloon endoscopy (DBE) in the diagnosis of jejunoileal follicular lymphoma lesions has not been fully evaluated. We aimed to investigate the value of DBE in addition to computed tomography (CT) and (18)F-fluorodeoxyglucose positron emission tomography ((18)F-FDG-PET) in the diagnosis of jejunoileal follicular lymphoma. DBE with biopsy was performed in seven patients with primary duodenal follicular lymphoma diagnosed by EGD, in order to investigate jejunoileal involvement. Jejunoileal follicular lymphoma lesions were detected by DBE in six out of the seven patients (three in the jejunum and three in the jejunum and ileum), whereas CT and (18)F-FDG-PET failed to detect the existence of these lesions. Endoscopic findings of the jejunoileal lesions revealed multiple white nodules and white villi, which were similar to those of duodenal lesions. DBE was more useful for the diagnosis of jejunoileal involvement in primary intestinal follicular lymphoma than CT and (18)F-FDG-PET. The use of DBE will become important for determining the most appropriate treatment for gastrointestinal follicular lymphoma.
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Affiliation(s)
- N Higuchi
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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36
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Akahoshi K, Honda K, Kubokawa M, Motomura Y, Matsui N, Endo S, Higuchi N, Taki K, Oya M, Akahane H, Akiba H. Endoscopic resection of a large pedunculated duodenal polyp using a grasping type scissors forceps. Endoscopy 2008; 40 Suppl 2:E74-5. [PMID: 18633904 DOI: 10.1055/s-2007-995524] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- K Akahoshi
- Department of Gastroenterology, Aso Iizuka Hospital, Iizuka, Japan.
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37
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Itaba S, Higuchi N, Nakamura K, Sumida Y, Kashiwabara Y, Arita Y, Ito T, Migita Y, Takayanagi R. Education and Imaging. Hepatobiliary and pancreatic: spontaneous cystogastric fistula. J Gastroenterol Hepatol 2007; 22:1348. [PMID: 17688674 DOI: 10.1111/j.1440-1746.2007.05088.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Affiliation(s)
- S Itaba
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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38
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Roy RR, Zhong H, Khalili N, Kim SJ, Higuchi N, Monti RJ, Grossman E, Hodgson JA, Edgerton VR. Is spinal cord isolation a good model of muscle disuse? Muscle Nerve 2007; 35:312-21. [PMID: 17154282 DOI: 10.1002/mus.20706] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The patterns of normal daily activity that are required to maintain normal skeletal muscle properties remain unknown. The present study was designed to determine whether spinal cord isolation can be used as a reliable experimental model of neuromuscular inactivity, that is, as a baseline for the absence of activity. Electromyograms (EMGs) were recorded from selected hindlimb muscles of unanesthetized rats over 24-hour periods before and 7, 30, 60, and 90 days after surgical isolation of the lumbar spinal cord. Our data indicate that some rat slow muscle fibers pre-surgery were activated for less than 3 hours per day. Spinal cord isolation (SI) reduced the mean daily integrated EMG (IEMG) and daily EMG duration in the primary slow extensor muscle (soleus) to <1% of control, and in the primary fast extensor muscles [medial gastrocnemius (MG) and vastus lateralis (VL)] to <2% of control. These parameters were decreased to <8% and 3% of control, respectively, in a primary fast flexor muscle, the tibialis anterior (TA). From 30 to 90 days post-SI, the mean amplitudes of the spontaneous EMG bursts were relatively normal in the soleus, increased approximately 2-fold in the MG and VL, and increased approximately 4-fold in the TA. Some evidence of the normal antagonistic flexor-extensor relationship was apparent in the brief periods of recorded activity post-SI. These results indicate that SI eliminates nearly all of the normal EMG activity in the hindlimb muscles in the presence of relatively normal muscle innervation and functional intraspinal neural circuitry.
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Affiliation(s)
- R R Roy
- Brain Research Institute, University of California Los Angeles, 1320 Gonda Neuroscience and Genetics Building, Box 951761, Los Angeles, California 90095-1761, USA.
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Honda K, Mizutani T, Higuchi N, Kanayama K, Sumida Y, Yoshinaga S, Itaba S, Akiho H, Yoshimura R, Nakamura K, Ueki T, Miyasaka Y, Takayanagi R. A Meckel's diverticulum with an ileal ulcer detected with double-balloon enteroscopy. Endoscopy 2007; 39 Suppl 1:E160. [PMID: 17570100 DOI: 10.1055/s-2006-925379] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- K Honda
- Dept. of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
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40
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Honda K, Itaba S, Mizutani T, Sumida Y, Kanayama K, Higuchi N, Yoshinaga S, Akiho H, Kawabe K, Arita Y, Ito T, Nakamura K, Takayanagi R. An increase in the serum amylase level in patients after peroral double-balloon enteroscopy: an association with the development of pancreatitis. Endoscopy 2006; 38:1040-3. [PMID: 17058172 DOI: 10.1055/s-2006-944831] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND STUDY AIMS Double-balloon enteroscopy (DBE) is a novel technique that allows the enteroscope to be inserted deep into the small intestine. The procedure has been thought to be safe, but cases of acute pancreatitis after peroral DBE have recently been observed. The aim of this study was to confirm the occurrence of hyperamylasemia after peroral DBE. PATIENTS AND METHODS Peroral DBE was carried out in 13 patients from July 2005 to February 2006. Blood samples were taken before and 3 h after the procedure, and serum pancreatic amylase levels were measured. The patients were also evaluated for pancreatic-type abdominal pain after the procedure. Hyperamylasemia after peroral DBE was defined as an elevation of the serum pancreatic amylase level to more than the upper normal limit and twice the level before the procedure. Pancreatitis was diagnosed on the basis of both pancreatic-type abdominal pain and hyperamylasemia. RESULTS Hyperamylasemia after peroral DBE occurred in six patients (46.2 %). One of the six patients with hyperamylasemia had pancreatic-type abdominal pain after the procedure and developed acute pancreatitis. The average procedure time was 105 min (range 65 - 155 min) in the patients with hyperamylasemia, and did not significantly differ from that in the group without hyperamylasemia (99 min). CONCLUSIONS Hyperamylasemia after peroral DBE occurs frequently and may be associated with development of pancreatitis.
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Affiliation(s)
- K Honda
- Dept. of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Higuchi N, Akahoshi K, Sumida Y, Kubokawa M, Motomura Y, Kimura M, Matsumoto M, Nakamura K, Nawata H. Endoscopic band ligation therapy for upper gastrointestinal bleeding related to Mallory-Weiss syndrome. Surg Endosc 2006; 20:1431-4. [PMID: 16703428 DOI: 10.1007/s00464-005-0608-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2005] [Accepted: 01/05/2006] [Indexed: 01/12/2023]
Abstract
BACKGROUND No consensus exists as to the best endoscopic treatment for Mallory-Weiss syndrome. Endoscopic band ligation is a readily available and easily learned technique. This prospective study evaluated the efficacy and safety of endoscopic band ligation therapy for Mallory-Weiss syndrome. METHODS From August 1998 to June 2005, a clinical trial assessed 37 patients with a diagnosis of Mallory-Weiss syndrome who had active bleeding, exposed vessels, or both. Their lesions were treated using endoscopic band ligation. RESULTS Endoscopic band ligation was successful in 36 of 37 cases, with a follow-up period ranging from 1 to 24 months. The remaining patient had severe liver failure and disseminated intravascular coagulation. The patient bled again at 12 h and subsequently died. Except for this case, no recurrent bleeding, perforation, or other complications occurred. CONCLUSIONS The study results suggest that endoscopic band ligation is an effective, safe, and easily learned procedure for treating upper gastrointestinal bleeding related to Mallory-Weiss syndrome.
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Affiliation(s)
- N Higuchi
- Department of Gastroenterology, Aso Iizuka Hospital, 3-83 Yoshio, Iizuka, Fukuoka, 820-8505, Japan
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42
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Chave J, Andalo C, Brown S, Cairns MA, Chambers JQ, Eamus D, Fölster H, Fromard F, Higuchi N, Kira T, Lescure JP, Nelson BW, Ogawa H, Puig H, Riéra B, Yamakura T. Tree allometry and improved estimation of carbon stocks and balance in tropical forests. Oecologia 2005. [PMID: 15971085 DOI: 10.1007/s00442-005-0100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Tropical forests hold large stores of carbon, yet uncertainty remains regarding their quantitative contribution to the global carbon cycle. One approach to quantifying carbon biomass stores consists in inferring changes from long-term forest inventory plots. Regression models are used to convert inventory data into an estimate of aboveground biomass (AGB). We provide a critical reassessment of the quality and the robustness of these models across tropical forest types, using a large dataset of 2,410 trees >or= 5 cm diameter, directly harvested in 27 study sites across the tropics. Proportional relationships between aboveground biomass and the product of wood density, trunk cross-sectional area, and total height are constructed. We also develop a regression model involving wood density and stem diameter only. Our models were tested for secondary and old-growth forests, for dry, moist and wet forests, for lowland and montane forests, and for mangrove forests. The most important predictors of AGB of a tree were, in decreasing order of importance, its trunk diameter, wood specific gravity, total height, and forest type (dry, moist, or wet). Overestimates prevailed, giving a bias of 0.5-6.5% when errors were averaged across all stands. Our regression models can be used reliably to predict aboveground tree biomass across a broad range of tropical forests. Because they are based on an unprecedented dataset, these models should improve the quality of tropical biomass estimates, and bring consensus about the contribution of the tropical forest biome and tropical deforestation to the global carbon cycle.
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Affiliation(s)
- J Chave
- Laboratoire Evolution et Diversité Biologique UMR 5174, CNRS/UPS, bâtiment IVR3, Université Paul Sabatier, 118 route de Narbonne, 31062, Toulouse, France.
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43
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Chave J, Andalo C, Brown S, Cairns MA, Chambers JQ, Eamus D, Fölster H, Fromard F, Higuchi N, Kira T, Lescure JP, Nelson BW, Ogawa H, Puig H, Riéra B, Yamakura T. Tree allometry and improved estimation of carbon stocks and balance in tropical forests. Oecologia 2005; 145:87-99. [PMID: 15971085 DOI: 10.1007/s00442-005-0100-x] [Citation(s) in RCA: 684] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2004] [Accepted: 03/11/2005] [Indexed: 10/25/2022]
Abstract
Tropical forests hold large stores of carbon, yet uncertainty remains regarding their quantitative contribution to the global carbon cycle. One approach to quantifying carbon biomass stores consists in inferring changes from long-term forest inventory plots. Regression models are used to convert inventory data into an estimate of aboveground biomass (AGB). We provide a critical reassessment of the quality and the robustness of these models across tropical forest types, using a large dataset of 2,410 trees >or= 5 cm diameter, directly harvested in 27 study sites across the tropics. Proportional relationships between aboveground biomass and the product of wood density, trunk cross-sectional area, and total height are constructed. We also develop a regression model involving wood density and stem diameter only. Our models were tested for secondary and old-growth forests, for dry, moist and wet forests, for lowland and montane forests, and for mangrove forests. The most important predictors of AGB of a tree were, in decreasing order of importance, its trunk diameter, wood specific gravity, total height, and forest type (dry, moist, or wet). Overestimates prevailed, giving a bias of 0.5-6.5% when errors were averaged across all stands. Our regression models can be used reliably to predict aboveground tree biomass across a broad range of tropical forests. Because they are based on an unprecedented dataset, these models should improve the quality of tropical biomass estimates, and bring consensus about the contribution of the tropical forest biome and tropical deforestation to the global carbon cycle.
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Affiliation(s)
- J Chave
- Laboratoire Evolution et Diversité Biologique UMR 5174, CNRS/UPS, bâtiment IVR3, Université Paul Sabatier, 118 route de Narbonne, 31062, Toulouse, France.
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Saito H, Akahoshi K, Oya M, Kubokawa M, Akiho H, Sumida Y, Fujimaru T, Higuchi N, Matsumoto M. EUS-guided endoscopic resection using band ligation of oesophageal granular cell tumour: report of a case. Acta Gastroenterol Belg 2005; 68:272-5. [PMID: 16013651] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
A 60-year-old Japanese man was referred for treatment of a polypoid oesophageal tumour. Radiographic examination of the upper gastrointestinal tract disclosed a nodule with central depression in the lower esophagus. By endoscopy the nodule was yellowish and appeared submucosal. Endoscopic ultrasonography demonstrated a hypoechoic solid tumour limited in submucosa without lymph node involvement. Endoscopic resection using band ligation was performed under guidance by endoscopic ultrasonography. By histologic examination the tumour consisted of large cells arranged in nests. These cells had abundant granular cytoplasm and small round nuclei. They expressed S-100 protein and were CD68, and periodic acid-Schiff positive. No expression of alpha-smooth muscle actin was noted. The tumour was limited in submucosa. Findings were consistent with complete endoscopic resection. This report may be the first concerning an oesophageal granular cell tumour successfully treated with EUS-guided endoscopic resection using band ligation.
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Affiliation(s)
- H Saito
- Department of Gastroenterology, Aso Iizuka Hospital, Iizuka, Japan
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Maruyama H, Higuchi M, Higuchi N, Kameda S, Saito M, Sugawa M, Matsuzaki J, Neichi T, Yokoyama S, Miyazaki Y, Miyazaki J, Gejyo F. Post-secretion neutralization of transgene-derived effect: soluble erythropoietin receptor/IgG1Fc expressed in liver neutralizes erythropoietin produced in muscle. J Gene Med 2004; 6:228-37. [PMID: 14978776 DOI: 10.1002/jgm.485] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND The regulation of transgene expression is a key issue for the development of safe gene therapy. Various strategies have been used to regulate protein production at the levels of transgene expression, transcription, translation, and secretion. Neutralization following secretion is another important backup system to prevent super-therapeutic levels of a protein from being expressed by gene transfer. METHODS We tested whether the soluble human erythropoietin receptor (EpoR)/IgG(1)Fc could neutralize the rat Epo at the post-secretory level and suppress erythrocytosis. RESULTS To assess whether soluble human EpoR could bind rat Epo in vitro, we used the Epo-dependent human leukemic cell line, AS-E2. EpoR/IgG(1)Fc significantly inhibited the growth of AS-E2 cells in Epo-containing medium. To test this neutralization effect of EpoR/IgG(1)Fc in vivo, we first transferred pCAGGS-Epo into rat muscle by in vivo electroporation, confirmed erythropoiesis for 3 weeks, and then delivered EpoR/IgG(1)Fc by liver-targeted gene transfer via tail-vein injection with hydrodynamics-based transfection. Reticulocyte counts and hematocrit levels in rats that received pCAGGS-EpoR/IgG(1)Fc injections were significantly lower than in rats that received pCAGGS-EpoR, pCAGGS-IgG(1)Fc, or no injection. CONCLUSIONS These results demonstrate that liver-targeted pCAGGS-EpoR/IgG(1)Fc transfer by tail-vein injection with hydrodynamics-based transfection is useful for neutralizing Epo delivered by in vivo electroporation. This backup strategy at the level of post-secretion could facilitate the clinical application of gene therapy in the future.
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Affiliation(s)
- H Maruyama
- Division of Clinical Nephrology and Rheumatology, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachidori, Niigata 951-8120, Japan.
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Lewis SL, Phillips OL, Baker TR, Lloyd J, Malhi Y, Almeida S, Higuchi N, Laurance WF, Neill DA, Silva JNM, Terborgh J, Lezama AT, Martínez RV, Brown S, Chave J, Kuebler C, Vargas PN, Vinceti B. Concerted changes in tropical forest structure and dynamics: evidence from 50 South American long-term plots. Philos Trans R Soc Lond B Biol Sci 2004; 359:421-36. [PMID: 15212094 PMCID: PMC1693337 DOI: 10.1098/rstb.2003.1431] [Citation(s) in RCA: 216] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Several widespread changes in the ecology of old-growth tropical forests have recently been documented for the late twentieth century, in particular an increase in stem turnover (pan-tropical), and an increase in above-ground biomass (neotropical). Whether these changes are synchronous and whether changes in growth are also occurring is not known. We analysed stand-level changes within 50 long-term monitoring plots from across South America spanning 1971-2002. We show that: (i) basal area (BA: sum of the cross-sectional areas of all trees in a plot) increased significantly over time (by 0.10 +/- 0.04 m2 ha(-1) yr(-1), mean +/- 95% CI); as did both (ii) stand-level BA growth rates (sum of the increments of BA of surviving trees and BA of new trees that recruited into a plot); and (iii) stand-level BA mortality rates (sum of the cross-sectional areas of all trees that died in a plot). Similar patterns were observed on a per-stem basis: (i) stem density (number of stems per hectare; 1 hectare is 10(4) m2) increased significantly over time (0.94 +/- 0.63 stems ha(-1) yr(-1)); as did both (ii) stem recruitment rates; and (iii) stem mortality rates. In relative terms, the pools of BA and stem density increased by 0.38 +/- 0.15% and 0.18 +/- 0.12% yr(-1), respectively. The fluxes into and out of these pools-stand-level BA growth, stand-level BA mortality, stem recruitment and stem mortality rates-increased, in relative terms, by an order of magnitude more. The gain terms (BA growth, stem recruitment) consistently exceeded the loss terms (BA loss, stem mortality) throughout the period, suggesting that whatever process is driving these changes was already acting before the plot network was established. Large long-term increases in stand-level BA growth and simultaneous increases in stand BA and stem density imply a continent-wide increase in resource availability which is increasing net primary productivity and altering forest dynamics. Continent-wide changes in incoming solar radiation, and increases in atmospheric concentrations of CO2 and air temperatures may have increased resource supply over recent decades, thus causing accelerated growth and increased dynamism across the world's largest tract of tropical forest.
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Affiliation(s)
- S L Lewis
- Earth and Biosphere Institute, Geography, University of Leeds, Leeds LS2 9JT, UK.
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Phillips OL, Baker TR, Arroyo L, Higuchi N, Killeen TJ, Laurance WF, Lewis SL, Lloyd J, Malhi Y, Monteagudo A, Neill DA, Vargas PN, Silva JNM, Terborgh J, Martínez RV, Alexiades M, Almeida S, Brown S, Chave J, Comiskey JA, Czimczik CI, Di Fiore A, Erwin T, Kuebler C, Laurance SG, Nascimento HEM, Olivier J, Palacios W, Patiño S, Pitman NCA, Quesada CA, Saldias M, Lezama AT, Vinceti B. Pattern and process in Amazon tree turnover, 1976-2001. Philos Trans R Soc Lond B Biol Sci 2004; 359:381-407. [PMID: 15212092 PMCID: PMC1693333 DOI: 10.1098/rstb.2003.1438] [Citation(s) in RCA: 328] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Previous work has shown that tree turnover, tree biomass and large liana densities have increased in mature tropical forest plots in the late twentieth century. These results point to a concerted shift in forest ecological processes that may already be having significant impacts on terrestrial carbon stocks, fluxes and biodiversity. However, the findings have proved controversial, partly because a rather limited number of permanent plots have been monitored for rather short periods. The aim of this paper is to characterize regional-scale patterns of 'tree turnover' (the rate with which trees die and recruit into a population) by using improved datasets now available for Amazonia that span the past 25 years. Specifically, we assess whether concerted changes in turnover are occurring, and if so whether they are general throughout the Amazon or restricted to one region or environmental zone. In addition, we ask whether they are driven by changes in recruitment, mortality or both. We find that: (i) trees 10 cm or more in diameter recruit and die twice as fast on the richer soils of southern and western Amazonia than on the poorer soils of eastern and central Amazonia; (ii) turnover rates have increased throughout Amazonia over the past two decades; (iii) mortality and recruitment rates have both increased significantly in every region and environmental zone, with the exception of mortality in eastern Amazonia; (iv) recruitment rates have consistently exceeded mortality rates; (v) absolute increases in recruitment and mortality rates are greatest in western Amazonian sites; and (vi) mortality appears to be lagging recruitment at regional scales. These spatial patterns and temporal trends are not caused by obvious artefacts in the data or the analyses. The trends cannot be directly driven by a mortality driver (such as increased drought or fragmentation-related death) because the biomass in these forests has simultaneously increased. Our findings therefore indicate that long-acting and widespread environmental changes are stimulating the growth and productivity of Amazon forests.
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Affiliation(s)
- O L Phillips
- Earth and Biosphere Institute, School of Geography, University of Leeds, Leeds LS2 9JT, UK.
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Kameda S, Maruyama H, Higuchi N, Iino N, Nakamura G, Miyazaki J, Gejyo F. Kidney-targeted naked DNA transfer by retrograde injection into the renal vein in mice. Biochem Biophys Res Commun 2004; 314:390-5. [PMID: 14733917 DOI: 10.1016/j.bbrc.2003.12.107] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
We recently developed a novel kidney-targeted gene transfer technique in rats, using the retrograde renal vein injection of naked plasmid DNA. Many animal disease models are created in mice by transgenic or knockout technologies. However, it is much harder to perform renal vein injection in mice than in rats because they have a thin and short vein. Here we transferred the mouse interleukin (IL)-10 gene into mice by retrograde renal vein injection, using an IL-10 and immunoglobulin fusion protein (IL-10/Fc) (96-kDa) expression plasmid, pCAGGS-IL10/Fc. We observed a dose-response relationship between serum IL-10 levels and the amount of injected DNA. The serum IL-10 levels peaked at day 1 and then were sustained for at least 2 weeks. These results demonstrate that the kidney-targeted naked plasmid DNA transfer of mice by retrograde renal vein injection can be achieved, and the kidney serves as a depot organ for the production of large proteins.
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Affiliation(s)
- S Kameda
- Division of Clinical Nephrology and Rheumatology, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachi-dori, 951-8120 Niigata, Japan
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Kameda S, Maruyama H, Higuchi N, Nakamura G, Iino N, Nishikawa Y, Miyazaki J, Gejyo F. Hydrodynamics-based transfer of PCR-amplified DNA fragments into rat liver. Biochem Biophys Res Commun 2003; 309:929-36. [PMID: 13679063 DOI: 10.1016/j.bbrc.2003.08.087] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
A high level of plasmid DNA expression in rat liver can be achieved by the rapid injection of a large volume of a naked DNA solution into the tail vein, called the 'hydrodynamics-based procedure.' The preparation of PCR-amplified DNA fragments is easier than that of naked DNA. In this paper we evaluated the effects of expressing the erythropoietin (Epo) gene in the rat liver by injecting fCAGGS-Epo, an Epo-expressing PCR-amplified DNA fragment, via the tail vein. After injection of 5 pmol fCAGGS-Epo (10 microg) or pCAGGS-Epo (18.4 microg), plasmid DNA, the serum Epo levels peaked at week 1, then persisted for at least 12 weeks. Transgene-derived Epo secretion resulted in significant erythropoiesis. These results demonstrated that transfer of PCR-amplified DNA fragments into the rat liver via rapid tail vein injection can be achieved. This method may provide a useful means for studying the physiologic function of a putative gene.
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Affiliation(s)
- S Kameda
- Division of Clinical Nephrology and Rheumatology, Niigata University Graduate School of Medicine and Dental Sciences, 1-757 Asahimachi-dori, Niigata 951-8120, Japan
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Sugawara Y, Kadono E, Suzuki A, Yukuta Y, Shibasaki Y, Nishimura N, Kameyama Y, Hirota M, Ishida C, Higuchi N, Haramoto K, Sakai Y, Soda H. Hemichrome formation observed in human haemoglobin A under various buffer conditions. Acta Physiol Scand 2003; 179:49-59. [PMID: 12940938 DOI: 10.1046/j.1365-201x.2003.01142.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
AIM To observe hemichrome formation in human haemoglobin A under various buffer conditions. METHOD Hemichrome formation of human oxyhaemoglobin A (HbO2) was studied spectrophotometrically in 0.1 m buffer at various temperatures and pH values. RESULTS Following autoxidation in ferrous HbO2, it was evident that formation of hemichrome, which tends to precipitate, occurred at various stages during the course of the autoxidation reaction namely at initial, intermediate or final stages, depending on temperature and pH of the solution. By varying temperature of the solution from 35 to 55 degrees C and pH from 4.5 to 10.5, it is shown here that HbO2 exhibits high susceptibility for hemichrome formation and its occurrence is a function of pH, temperature and progress of autoxidation of HbO2. Unlike HbO2 and its separated haemoglobin chains, monomeric bovine heart myoglobin (MbO2) did not easily form hemichrome. CONCLUSION These findings provide a clue on the crucial role of haemoglobin molecule for senescent cell recognition or homeostasis in the blood circulation.
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Affiliation(s)
- Y Sugawara
- Department of Health Science, Hiroshima Prefectural Women's University, Health Science, Hiroshima, Japan
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