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Murata T, Yamaguchi N, Shimomoto Y, Mikajiri Y, Sasaki Y, Konagaya K, Igarashi Y, Sawamura N, Yamamoto K, Kume N, Suno Y, Kurata S, Kasetani T, Kato I, Nishida T, Hirata H, Miyake K, Oonishi T, Isogai N, Fukai R, Kanomata H, Shimoyama R, Kashiwagi H, Takenoue T, Terashima T, Murayama H, Kohriki S, Morita T, Takaki M, Ogino H, Kanemaru T, Sano K, Kurogi N, Watanabe K, Hirata M, Kawachi J. Preoperative prognostic predictors and treatment strategies for surgical procedure focused on the sequential organ failure assessment score in nonocclusive mesenteric ischemia: a multicenter retrospective cohort study. Int J Surg 2023; 109:4119-4125. [PMID: 37720948 PMCID: PMC10720829 DOI: 10.1097/js9.0000000000000733] [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: 06/12/2023] [Accepted: 08/21/2023] [Indexed: 09/19/2023]
Abstract
BACKGROUND Several large-scale studies have assessed endovascular and surgical treatment methods for nonocclusive mesenteric ischemia (NOMI); however, the prognostic factors for NOMI remain unclear. Therefore, this study aimed to evaluate risk factors for in-hospital mortality among patients with NOMI who underwent laparotomy and to examine therapeutic strategies that may improve the prognosis. MATERIALS AND METHODS In this multicenter retrospective study, the authors reviewed the electronic medical records retrieved from the inpatient database of patients with NOMI at eight district general hospitals between January 2011 and January 2021. A total of 88 patients who underwent laparotomies were divided into survivor and nonsurvivor groups, and statistical analysis was performed to determine clinical and physiological factors. RESULTS Exploratory laparotomy based on second-look surgery was the first treatment choice. The overall mortality rate was 48.8%, with a male-to-female ratio of 1.1:1. The median Sequential Organ Failure Assessment (SOFA) score was 8 [interquartile range: 3.75-14.2], and the median SOFA scores were 5 [3-7] in the survivor group and 13 [9-17.5] in the nonsurvivor group. Univariate analysis revealed a significant difference in BMI ( P <0.001), hypoglycemia ( P =0.0012), previous cardiovascular surgery ( P =0.0019), catecholamine use ( P <0.001), SOFA score ( P <0.001), platelet count ( P =0.0023), and lactate level ( P <0.001). Logistic regression analysis using the factors with significant differences revealed that SOFA score ≥10 (odds ratio 23.3; 95% CI: 1.94-280.00; P =0.013) was an independent prognostic factor. In addition, catecholamine use was suggested as a factor with a SOFA score greater than or equal to 10. CONCLUSION This study confirmed that a SOFA score of greater than or equal to 10 may be associated with increased mortality. While closely monitoring low blood pressure and renal dysfunction, survival rates may be improved if surgical intervention is performed before the SOFA score reaches greater than or equal to 10.
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Affiliation(s)
| | | | - Yutaro Shimomoto
- Department of General Surgery, Tokyo Nishi Tokushukai Hospital, Tokyo, Japan
| | - Yumi Mikajiri
- Department of General Surgery, Shonan Atsugi Hospital
| | - Yuki Sasaki
- Department of General Surgery, Shonan Fujisawa Tokushukai Hospital
| | - Kensuke Konagaya
- Department of General Surgery, Narita Tomisato Tokushukai Hospital, Chiba
| | | | - Naoki Sawamura
- Department of General Surgery, Shonan Fujisawa Tokushukai Hospital
| | - Kota Yamamoto
- Department of General Surgery, Shonan Atsugi Hospital
| | - Nao Kume
- Department of General Surgery, Narita Tomisato Tokushukai Hospital, Chiba
| | | | - Shuji Kurata
- Department of General Surgery, Shonan Fujisawa Tokushukai Hospital
| | - Tetsuya Kasetani
- Department of General Surgery, Matsubara Tokushukai Hospital, Osaka
| | - Ichiro Kato
- Department of General Surgery, Sendai Tokushukai Hospital, Miyagi
| | | | - Hirohisa Hirata
- Department of General Surgery, Matsubara Tokushukai Hospital, Osaka
| | | | - Takahisa Oonishi
- Department of General Surgery, Yamato Tokushukai Hospital, Kanagawa
| | | | | | | | | | | | | | | | - Hiroyuki Murayama
- Department of General Surgery, Narita Tomisato Tokushukai Hospital, Chiba
| | - Shunsaku Kohriki
- Department of General Surgery, Shonan Fujisawa Tokushukai Hospital
| | - Takeshi Morita
- Department of General Surgery, Matsubara Tokushukai Hospital, Osaka
| | - Mutsuo Takaki
- Department of General Surgery, Tokyo Nishi Tokushukai Hospital, Tokyo, Japan
| | - Hidemitsu Ogino
- Department of General Surgery, Narita Tomisato Tokushukai Hospital, Chiba
| | | | - Ken Sano
- Department of General Surgery, Sendai Tokushukai Hospital, Miyagi
| | | | - Kazunao Watanabe
- Center for Clinical and Translational Science, Shonan Kamakura General Hospital
| | - Masahiro Hirata
- Center for Clinical and Translational Science, Shonan Kamakura General Hospital
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Yonekura H, Kato I, Yamamoto Y, Ikeda T, Higashida H, Okamoto H. Biosynthesis and Function of VIP and Oxytocin: Mechanisms of C-terminal Amidation, Oxytocin Secretion and Transport. Endocrinology 2023; 164:bqad121. [PMID: 37548257 DOI: 10.1210/endocr/bqad121] [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: 05/08/2023] [Revised: 07/12/2023] [Accepted: 08/05/2023] [Indexed: 08/08/2023]
Abstract
In this review, we provide the status of research on vasoactive intestinal peptide (VIP) and oxytocin, typical C-terminal α-amidated peptide hormones, including their precursor protein structures, processing and C-terminal α-amidation, and the recently identified mechanisms of regulation of oxytocin secretion and its transportation through the blood brain barrier. More than half of neural and endocrine peptides, such as VIP and oxytocin, have the α-amide structure at their C-terminus, which is essential for biological activities. We have studied the synthesis and function of C-terminal α-amidated peptides, including VIP and oxytocin, since the 1980s. Human VIP mRNA encoded not only VIP but also another related C-terminal α-amidated peptide, PHM-27 (peptide having amino-terminal histidine, carboxy-terminal methionine amide, and 27 amino acid residues). The human VIP/PHM-27 gene is composed of 7 exons and regulated synergistically by cyclic AMP and protein kinase C pathways. VIP has an essential role in glycemic control using transgenic mouse technology. The peptide C-terminal α-amidation proceeded through a 2-step mechanism catalyzed by 2 different enzymes encoded in a single mRNA. In the oxytocin secretion from the hypothalamus/the posterior pituitary, the CD38-cyclic ADP-ribose signal system, which was first established in the insulin secretion from pancreatic β cells of the islets of Langerhans, was found to be essential. A possible mechanism involving RAGE (receptor for advanced glycation end-products) of the oxytocin transportation from the blood stream into the brain through the blood-brain barrier has also been suggested.
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Affiliation(s)
- Hideto Yonekura
- Department of Biochemistry, Kanazawa Medical University School of Medicine, 1-1 Daigaku, Uchinada, Kahoku-gun, Ishikawa 920-0293, Japan
- Department of Biochemistry, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan
| | - Ichiro Kato
- Department of Biochemistry, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan
- Department of Biochemistry, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama, Toyama 930-0194, Japan
| | - Yasuhiko Yamamoto
- Department of Biochemistry, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan
- Department of Biochemistry and Molecular Vascular Biology, Kanazawa University Graduate School of Medical Sciences, 13-1 Takara-machi, Kanazawa, Ishikawa 920-8640, Japan
| | - Takayuki Ikeda
- Department of Biochemistry, Kanazawa Medical University School of Medicine, 1-1 Daigaku, Uchinada, Kahoku-gun, Ishikawa 920-0293, Japan
- Department of Biochemistry, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan
| | - Haruhiro Higashida
- Department of Basic Research on Social Recognition and Memory, Research Center for Child Mental Development, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa 920-8640, Japan
| | - Hiroshi Okamoto
- Department of Biochemistry, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan
- Department of Biochemistry, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama, Toyama 930-0194, Japan
- Department of Biochemistry and Molecular Vascular Biology, Kanazawa University Graduate School of Medical Sciences, 13-1 Takara-machi, Kanazawa, Ishikawa 920-8640, Japan
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Miyata M, Hirabayashi Y, Munakata Y, Urata Y, Saito K, Okuno H, Yoshida M, Kodera T, Watanabe R, Miyamoto S, Ishii T, Nakazawa S, Takemori H, Ando T, Kanno T, Komagamine M, Kato I, Takahashi Y, Komatsuda A, Endo K, Murai C, Takakubo Y, Miura T, Sato Y, Ichikawa K, Konta T, Chiba N, Muryoi T, Kobayashi H, Fujii H, Sekiguchi Y, Hatakeyama A, Ogura K, Sakuraba H, Asano T, Kanazawa H, Suzuki E, Takasaki S, Asakura K, Suzuki Y, Takagi M, Nakayama T, Watanabe H, Miura K, Mori Y. Feasibility of methotrexate discontinuation following tocilizumab and methotrexate combination therapy in patients with long-standing and advanced rheumatoid arthritis: a 3-year observational cohort study. Fukushima J Med Sci 2023; 69:11-20. [PMID: 36990790 PMCID: PMC10122970 DOI: 10.5387/fms.2022-06] [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: 01/27/2022] [Accepted: 01/30/2023] [Indexed: 03/31/2023] Open
Abstract
OBJECTIVES Methotrexate (MTX) is associated with extensive side effects, including myelosuppression, interstitial pneumonia, and infection. It is, therefore, critical to establish whether its administration is required after achieving remission with tocilizumab (TCZ) and MTX combination therapy in patients with rheumatoid arthritis (RA). Therefore, the aim of this multicenter, observational, cohort study was to evaluate the feasibility of MTX discontinuation for the safety of these patients. METHODS Patients with RA were administered TCZ, with or without MTX, for 3 years; those who received TCZ+MTX combination therapy were selected. After remission was achieved, MTX was discontinued without flare development in one group (discontinued [DISC] group, n = 33) and continued without flare development in another group (maintain [MAIN] group, n = 37). The clinical efficacy of TCZ+MTX therapy, patient background characteristics, and adverse events were compared between groups. RESULTS The disease activity score in 28 joints-erythrocyte sedimentation rate (DAS28-ESR) at 3, 6, and 9 months was significantly lower in the DISC group (P < .05, P < .01, and P < .01, respectively). Further, the DAS28-ESR remission rate at 6 and 9 months and Boolean remission rate at 6 months were significantly higher in the DISC group (P < .01 for all). Disease duration was significantly longer in the DISC group (P < .05). Furthermore, the number of patients with stage 4 RA was significantly higher in the DISC group (P < .01). CONCLUSIONS Once remission was achieved, MTX was discontinued in patients who responded favorably to TCZ+MTX therapy, despite the prolonged disease duration and stage progression.
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Affiliation(s)
- Masayuki Miyata
- Department of Internal Medicine, Fukushima Red Cross Hospital
| | | | | | | | | | - Hiroshi Okuno
- Department Orthopedic Surgery, Tohoku Rosai Hospital
| | | | - Takao Kodera
- Center for Arthritis and Rheumatic Diseases, Tohoku Pharmaceutical University Hospital
| | - Ryu Watanabe
- Department of Advanced Medicine for Rheumatic Diseases, Graduate School of Medicine, Kyoto University
| | - Seiya Miyamoto
- Department of Orthopedic Surgery, Tohoku Orthopedic Clinic
| | - Tomonori Ishii
- Department of Hematology and Rheumatology, Tohoku University Graduate School of Medicine
| | | | | | - Takanobu Ando
- Department of Orthopedics, General Hanamaki Hospital
| | - Takashi Kanno
- Department of Rheumatology, Ohta Nishinouchi Hospital
| | | | - Ichiro Kato
- Department Orthopedic Surgery, Tohoku Rosai Hospital
| | | | | | - Kojiro Endo
- Department of Rheumatology and Department of Orthopedic Surgery, Hoshi General Hospital
| | | | - Yuya Takakubo
- Department of Orthopedic Surgery, Yamagata University Faculty of Medicine
| | - Takao Miura
- Department of Orthopedic Surgery, Hirosaki Memorial Hospital
| | - Yukio Sato
- Department of Rheumatology, Kaiyama Central Hospital
| | - Kazunobu Ichikawa
- Department of Cardiology, Pulmonology, and Nephrology, Yamagata University Faculty of Medicine
| | - Tsuneo Konta
- Department of Public Health and Hygiene/Nephrology and Collagen Disease
| | - Noriyuki Chiba
- Department of Internal Medicine, Morioka National Hospital
| | | | | | - Hiroshi Fujii
- Department of Hematology and Rheumatology, Tohoku University Graduate School of Medicine
| | | | | | | | - Hirotake Sakuraba
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine
| | - Tomoyuki Asano
- Department of Rheumatology and Collagen Disease, Fukushima Medical University Hospital
| | | | - Eiji Suzuki
- Department of Rheumatology, Ohta Nishinouchi Hospital
| | | | - Kenichi Asakura
- Department of Internal Medicine, Yuri Kumiai General Hospital
| | | | - Michiaki Takagi
- Department of Orthopedic Surgery, Yamagata University Faculty of Medicine
| | | | - Hiroshi Watanabe
- Department of Rheumatology and Collagen Disease, Fukushima Medical University Hospital
| | - Keiki Miura
- Department of Orthopedic Surgery, Wakuya-Town National Health Insurance Hospital
| | - Yu Mori
- Department of Orthopedic Surgery, Tohoku University Graduate School of Medicine
| | - the Michinoku Tocilizumab Study Group
- Department of Internal Medicine, Fukushima Red Cross Hospital
- Department of Rheumatology, Hikarigaoka Spellman Hospital
- Munakata Yasuhiko Clinic
- Department of Rheumatology, Tsugaru General Hospital
- Suminoya Rheumatism & Orthopedics Clinic
- Department Orthopedic Surgery, Tohoku Rosai Hospital
- Yoshida Orthopedic Surgery and Rheumatology Clinic
- Center for Arthritis and Rheumatic Diseases, Tohoku Pharmaceutical University Hospital
- Department of Advanced Medicine for Rheumatic Diseases, Graduate School of Medicine, Kyoto University
- Department of Orthopedic Surgery, Tohoku Orthopedic Clinic
- Department of Hematology and Rheumatology, Tohoku University Graduate School of Medicine
- Nakazawa Sports Clinic
- Department of Rheumatology, Aomori Prefectural Central Hospital
- Department of Orthopedics, General Hanamaki Hospital
- Department of Rheumatology, Ohta Nishinouchi Hospital
- Komagamine Orthopedic and Rheumatology Clinic
- Yu Family Clinic
- Department of Internal Medicine, Ogachi Central Hospital
- Department of Rheumatology and Department of Orthopedic Surgery, Hoshi General Hospital
- Murai Clinic
- Department of Orthopedic Surgery, Yamagata University Faculty of Medicine
- Department of Orthopedic Surgery, Hirosaki Memorial Hospital
- Department of Rheumatology, Kaiyama Central Hospital
- Department of Cardiology, Pulmonology, and Nephrology, Yamagata University Faculty of Medicine
- Department of Public Health and Hygiene/Nephrology and Collagen Disease
- Department of Internal Medicine, Morioka National Hospital
- Muryoi Clinic
- Minami-Fukushima Clinic
- NTT East Tohoku Hospital
- Ogura Orthopedic Surgery Clinic
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine
- Department of Rheumatology and Collagen Disease, Fukushima Medical University Hospital
- Department of Internal Medicine, Saiseikai Yamagata Hospital
- Department of Internal Medicine, Yuri Kumiai General Hospital
- Izumi Himawari Clinic
- Department of Internal Medicine, Nihonkai General Hospital
- Department of Orthopedic Surgery, Wakuya-Town National Health Insurance Hospital
- Department of Orthopedic Surgery, Tohoku University Graduate School of Medicine
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Ballinger TJ, Djuric Z, Sardesai S, Hovey K, Andrews C, Braskey TM, Rohan TE, Saquib N, Shadyab AH, Simon M, Wactawski-Wende J, Wallace R, Kato I. Proton Pump Inhibitor Use and Obesity-Associated Cancers in the Women's Health Initiative. Cancer Epidemiol Biomarkers Prev 2022. [PMID: 35775214 DOI: 10.1158/1055-9965.epi-22-0475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
PURPOSE Proton pump inhibitors (PPIs) inhibit fatty acid synthase (FAS), a critical enzyme in lipogenesis, energy balance, and cancer cell survival. We aimed to evaluate the association of PPI use with incidence of common obesity- related cancers in women: postmenopausal breast, colorectal, and endometrial cancers. METHODS Our study included 124,931 postmenopausal who were enrolled in the Women's Health Initiative (WHI) observational study and clinical trials, and had responded to a year 3 follow-up assessment. We examined prescription and over the counter use of PPI and/or histamine 2 receptor antagonists (H2RA) at baseline and year 3, to isolate potential effects of FAS inhibition by PPI rather than simply acid suppression. Incident cancer cases were physician-adjudicated. Cox proportional hazard regression models were used to estimate multivariable hazard ratios (HR) and 95% confidence intervals (CI) for associations between PPI and/or H2RA use and cancer incidence after year 3. RESULTS There were 7956 PPI ever users (with or without H2RA use) and 9398 H2RA only users. PPI or H2RA use was not associated with risk of breast cancer (n=9186 cases), compared to women who did not use either agent (HR 1.01, 95% CI 0.93-1.10 and HR 0.95 95% CI 0.87-1.03, respectively). The incidence of colorectal cancer (n=2280) was significantly lower in PPI users (HR 0.75, 95% CI 0.61-0.92), but not in H2RA users (HR 1.13, 95% CI 0.97-1.31). This association was strengthened with increasing duration (p=0.006) and potency (p=0.005) of PPI use and held regardless of BMI or NSAID use. PPI or H2RA use was not associated with endometrial cancer (n=1231) (HR 0.81, 95% CI 0.61-1.07 and HR 1.13, 95% CI 0.91-1.40, respectively), but showed a trend in decreased risk with increasing PPI potency (P=0.048). CONCLUSIONS Among postmenopausal women, PPI use, but not H2RA use, demonstrated an inverse, dose-responsive association with colorectal cancer incidence. This was consistent with preclinical data that FAS inhibition prevents colon cancer progression and supports further investigation of this commonly used medication as a cancer preventive agent. PPI use was not associated with incidence of breast or endometrial cancer.
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Kimura M, Kato I, Ishibashi K, Umemura M, Nagao T. Texture analysis of PET images for predicting response to induction chemotherapy for oral squamous cell carcinoma. Advances in Oral and Maxillofacial Surgery 2021. [DOI: 10.1016/j.adoms.2021.100145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Watanabe S, Iozumi K, Abe M, Ito Y, Uesugi T, Onoduka T, Kato I, Kato F, Kodama K, Takahashi H, Takeda O, Tomizawa K, Tateishi Y, Fujii M, Mayama J, Muramoto F, Yasuda H, Yamanaka K, Oh-I T, Kasai H, Tsuboi R, Hattori N, Maruyama R, Omi T, Shimoyama H, Nakasu I, Watanabe-Okada E, Nishimoto S, Mochizuki T, Fukuzawa M, Seishima M, Sugiura K, Yamamoto O, Shindo M, Kiryu H, Kusuhara M, Takenaka M. Clinical effectiveness of efinaconazole 10% solution for treatment of onychomycosis with longitudinal spikes. J Dermatol 2021; 48:1474-1481. [PMID: 34212423 PMCID: PMC8518491 DOI: 10.1111/1346-8138.16035] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 05/31/2021] [Indexed: 11/29/2022]
Abstract
Onychomycosis with longitudinal spikes in the nail plate has been reported to be refractory to oral drugs as with dermatophytoma. We evaluated the efficacy of 10% efinaconazole solution in the treatment of onychomycosis with longitudinal spikes. Of the 223 subjects who were enrolled in a previous study, a post‐hoc analysis of 82 subjects with longitudinal spikes was performed in this study. The opacity ratio of longitudinal spikes was decreased over time from 8.1 to 0.9 at the final assessment. In addition, the longitudinal spike disappearance rate increased early after the application to 81.7% at the final assessment. Therefore, 10% efinaconazole solution can be a first‐line drug for longitudinal spikes, which have been regarded as refractory to oral drugs.
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Affiliation(s)
- Shinichi Watanabe
- Department of Dermatology, Teikyo University School of Medicine, Tokyo, Japan
| | - Ken Iozumi
- Department of Dermatology, Tokyo Metropolitan Police Hospital, Tokyo, Japan
| | | | | | | | | | - Ichiro Kato
- Eniwa Station Dermatology Clinic, Eniwa, Japan
| | | | | | | | - Osamu Takeda
- Takeda Dermatological Skin Care Clinic, Sapporo, Japan
| | | | | | - Mizue Fujii
- Department of Dermatology, Asahikawa Medical University Hospital, Asahikawa, Japan
| | - Jun Mayama
- Chitose Dermatology and Plastic Surgery Clinic, Chitose,, Japan
| | | | | | | | | | - Hiroko Kasai
- Department of Dermatology, Kitasato University Kitasato Institute Hospital, Tokyo, Japan
| | - Ryoji Tsuboi
- Department of Dermatology, Tokyo Medical University, Tokyo, Japan
| | | | | | - Tokuya Omi
- Queen's Square Medical Center, Yokohama, Japan
| | - Harunari Shimoyama
- Department of Dermatology, Teikyo University Mizonokuchi Hospital, Kawasaki, Japan
| | | | - Emiko Watanabe-Okada
- Department of Dermatology, Saiseikai Yokohama-shi Tobu Hospital, Yokohama, Japan.,Department of Dermatology, Saiseikai Kanagawa Hospital, Yokohama, Japan
| | - Shuhei Nishimoto
- Department of Dermatology, Kawasaki Municipal Hospital, Kawasaki, Japan
| | - Takashi Mochizuki
- Department of Dermatology, Kanazawa Medical University, Kanazawa, Japan
| | - Masao Fukuzawa
- Department of Dermatology, Ina Central Hospital, Ina, Japan
| | - Mariko Seishima
- Department of Dermatology, Gifu University Graduate School of Medicine, Gifu, Japan
| | | | - Osamu Yamamoto
- Division of Dermatology, Department of Medicine of Sensory and Motor Organs, Tottori University Faculty of Medicine, Yonago, Japan
| | - Masahisa Shindo
- Department of Dermatology, National Hospital Organization Hamada Medical Center, Hamada, Japan
| | | | | | - Motoi Takenaka
- Department of Dermatology, Nagasaki University Hospital, Nagasaki, Japan
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Tanaka M, Takechi M, Homma A, Fukuda M, Nishimura D, Suzuki T, Tanaka Y, Moriguchi T, Ahn DS, Aimaganbetov A, Amano M, Arakawa H, Bagchi S, Behr KH, Burtebayev N, Chikaato K, Du H, Ebata S, Fujii T, Fukuda N, Geissel H, Hori T, Horiuchi W, Hoshino S, Igosawa R, Ikeda A, Inabe N, Inomata K, Itahashi K, Izumikawa T, Kamioka D, Kanda N, Kato I, Kenzhina I, Korkulu Z, Kuk Y, Kusaka K, Matsuta K, Mihara M, Miyata E, Nagae D, Nakamura S, Nassurlla M, Nishimuro K, Nishizuka K, Ohnishi K, Ohtake M, Ohtsubo T, Omika S, Ong HJ, Ozawa A, Prochazka A, Sakurai H, Scheidenberger C, Shimizu Y, Sugihara T, Sumikama T, Suzuki H, Suzuki S, Takeda H, Tanaka YK, Tanihata I, Wada T, Wakayama K, Yagi S, Yamaguchi T, Yanagihara R, Yanagisawa Y, Yoshida K, Zholdybayev TK. Swelling of Doubly Magic ^{48}Ca Core in Ca Isotopes beyond N=28. Phys Rev Lett 2020; 124:102501. [PMID: 32216444 DOI: 10.1103/physrevlett.124.102501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 12/20/2019] [Accepted: 01/30/2020] [Indexed: 06/10/2023]
Abstract
Interaction cross sections for ^{42-51}Ca on a carbon target at 280 MeV/nucleon have been measured for the first time. The neutron number dependence of derived root-mean-square matter radii shows a significant increase beyond the neutron magic number N=28. Furthermore, this enhancement of matter radii is much larger than that of the previously measured charge radii, indicating a novel growth in neutron skin thickness. A simple examination based on the Fermi-type distribution, and mean field calculations point out that this anomalous enhancement of the nuclear size beyond N=28 results from an enlargement of the core by a sudden increase in the surface diffuseness of the neutron density distribution, which implies the swelling of the bare ^{48}Ca core in Ca isotopes beyond N=28.
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Affiliation(s)
- M Tanaka
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
- Research Center for Superheavy Elements, Kyushu University, Fukuoka 819-0395, Japan
| | - M Takechi
- Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan
| | - A Homma
- Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan
| | - M Fukuda
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - D Nishimura
- Department of Physics, Tokyo City University, Setagaya, Tokyo 158-8557, Japan
| | - T Suzuki
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - Y Tanaka
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Moriguchi
- Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - D S Ahn
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - A Aimaganbetov
- Institute of Nuclear Physics, 050032 Almaty, Kazakhstan
- L.N. Gumilyov Eurasian National University, 010008 Astana, Kazakhstan
| | - M Amano
- Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - H Arakawa
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - S Bagchi
- Astronomy and Physics Department, Saint Mary's University, Halifax, Nova Scotia B3H 3C3, Canada
- Justus Liebig University, 35392 Giessen, Germany
- GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
| | - K-H Behr
- GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
| | - N Burtebayev
- Institute of Nuclear Physics, 050032 Almaty, Kazakhstan
| | - K Chikaato
- Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan
| | - H Du
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - S Ebata
- Department of Physics, Saitama University, Saitama 338-8570, Japan
- School of Environment and Society, Tokyo Institute of Technology, Meguro, Tokyo 152-8551, Japan
| | - T Fujii
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - N Fukuda
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - H Geissel
- GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
| | - T Hori
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - W Horiuchi
- Department of Physics, Hokkaido University, Sapporo 060-0810, Japan
| | - S Hoshino
- Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan
| | - R Igosawa
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - A Ikeda
- Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan
| | - N Inabe
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - K Inomata
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - K Itahashi
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - T Izumikawa
- Institute for Research Promotion, Niigata University, Niigata 950-8510, Japan
| | - D Kamioka
- Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - N Kanda
- Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan
| | - I Kato
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - I Kenzhina
- Institute of Nuclear Physics, 050032 Almaty, Kazakhstan
- Al-Farabi Kazakh National University, 050040 Almaty, Kazakhstan
| | - Z Korkulu
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - Y Kuk
- Institute of Nuclear Physics, 050032 Almaty, Kazakhstan
- L.N. Gumilyov Eurasian National University, 010008 Astana, Kazakhstan
| | - K Kusaka
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - K Matsuta
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - M Mihara
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - E Miyata
- Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan
| | - D Nagae
- Research Center for Superheavy Elements, Kyushu University, Fukuoka 819-0395, Japan
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - S Nakamura
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - M Nassurlla
- Institute of Nuclear Physics, 050032 Almaty, Kazakhstan
- Al-Farabi Kazakh National University, 050040 Almaty, Kazakhstan
| | - K Nishimuro
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - K Nishizuka
- Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan
| | - K Ohnishi
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - M Ohtake
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - T Ohtsubo
- Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan
| | - S Omika
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - H J Ong
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - A Ozawa
- Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - A Prochazka
- GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
| | - H Sakurai
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - C Scheidenberger
- GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
| | - Y Shimizu
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - T Sugihara
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Sumikama
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - H Suzuki
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - S Suzuki
- Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - H Takeda
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - Y K Tanaka
- GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
| | - I Tanihata
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
- School of Physics and Nuclear Energy Engineering, Beihang University, 100191 Beijing, China
| | - T Wada
- Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan
| | - K Wakayama
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - S Yagi
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - T Yamaguchi
- Department of Physics, Saitama University, Saitama 338-8570, Japan
- Tomonaga Center for the History of the Universe, University of Tsukuba, Ibaraki 305-8571, Japan
| | - R Yanagihara
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Y Yanagisawa
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - K Yoshida
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
| | - T K Zholdybayev
- Institute of Nuclear Physics, 050032 Almaty, Kazakhstan
- Al-Farabi Kazakh National University, 050040 Almaty, Kazakhstan
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8
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Iozumi K, Abe M, Ito Y, Uesugi T, Onoduka T, Kato I, Kato F, Kodama K, Takahashi H, Takeda O, Tomizawa K, Nomiyama T, Fujii M, Mayama J, Muramoto F, Yasuda H, Yamanaka K, Sato T, Oh-I T, Kasai H, Tsuboi R, Hattori N, Maruyama R, Omi T, Shimoyama H, Sei Y, Nakasu I, Nishimoto S, Hata Y, Mochizuki T, Fukuzawa M, Seishima M, Sugiura K, Katayama I, Yamamoto O, Shindo M, Kiryu H, Kusuhara M, Takenaka M, Watanabe S. Efficacy of long-term treatment with efinaconazole 10% solution in patients with onychomycosis, including severe cases: A multicenter, single-arm study. J Dermatol 2019; 46:641-651. [PMID: 31206779 PMCID: PMC6771904 DOI: 10.1111/1346-8138.14935] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [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: 04/05/2019] [Accepted: 05/01/2019] [Indexed: 11/28/2022]
Abstract
We evaluated the efficacy of efinaconazole 10% topical solution in long‐term use, for up to 72 weeks, for onychomycosis, including severe cases. Among 605 participants, 219 patients diagnosed as having onychomycosis were evaluated for the efficacy of efinaconazole. The treatment success rate (<10% clinical involvement of the target toenail) at the final assessment time point was 56.6%, the complete cure rate was 31.1% and the mycological cure rate was 61.6%, all of which increased over time, demonstrating that continuous application contributed to the improvement of cure rate. Even in severe cases, reduction of the affected nail area was observed, showing the potential efficacy of the treatment. Responses to a quality of life questionnaire among patients with onychomycosis, OnyCOE‐t, suggested that efinaconazole treatment improved the patients’ quality of life. The incidence of adverse drug reaction in the patients eligible for the assessment was 6.3%, and this developed only in the administration site in all cases. No systemic adverse event was observed. In addition, no increase in the incidence of adverse drug reaction due to long‐term use was found. Efinaconazole therapy was proved to exhibit excellent balance between efficacy and safety, and thus may serve as a useful treatment option for onychomycosis.
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Affiliation(s)
- Ken Iozumi
- Department of Dermatology, Tokyo Metropolitan Police Hospital, Tokyo, Japan
| | | | | | | | | | - Ichiro Kato
- Eniwa Station Dermatology Clinic, Hokkaido, Japan
| | | | | | | | - Osamu Takeda
- Takeda Dermatological Skin Care Clinic, Hokkaido, Japan
| | | | | | - Mizue Fujii
- Department of Dermatology, Asahikawa Medical University Hospital, Hokkaido, Japan
| | - Jun Mayama
- Chitose Dermatology and Plastic Surgery Clinic, Hokkaido, Japan
| | | | | | | | - Tomotaka Sato
- Department of Dermatology, Teikyo University Chiba Medical Center, Chiba, Japan.,Department of Dermatology, Kitasato University Kitasato Institute Hospital, Tokyo, Japan
| | | | - Hiroko Kasai
- Department of Dermatology, Kitasato University Kitasato Institute Hospital, Tokyo, Japan
| | - Ryoji Tsuboi
- Department of Dermatology, Tokyo Medical University, Tokyo, Japan
| | | | | | - Tokuya Omi
- Queen's Square Medical Center, Kanagawa, Japan
| | - Harunari Shimoyama
- Department of Dermatology, Teikyo University Mizonokuchi Hospital, Kanagawa, Japan
| | - Yoshihiro Sei
- Department of Dermatology, Teikyo University Mizonokuchi Hospital, Kanagawa, Japan
| | | | - Shuhei Nishimoto
- Department of Dermatology, Saiseikai Kanagawa Hospital, Kanagawa, Japan
| | - Yasuki Hata
- Department of Dermatology, Saiseikai Kanagawa Hospital, Kanagawa, Japan.,Kanagawa Hata Dermatology Clinic, Kanagawa, Japan
| | - Takashi Mochizuki
- Department of Dermatology, Kanazawa Medical University, Ishikawa, Japan
| | - Masao Fukuzawa
- Department of Dermatology, Ina Central Hospital, Nagano, Japan
| | - Mariko Seishima
- Department of Dermatology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Kazumitsu Sugiura
- Department of Dermatology, Fujita Health University School of Medicine, Aichi, Japan
| | | | - Osamu Yamamoto
- Division of Dermatology, Department of Medicine of Sensory and Motor Organs, Tottori University Faculty of Medicine, Tottori, Japan
| | - Masahisa Shindo
- Department of Dermatology, National Hospital Organization Hamada Medical Center, Shimane, Japan
| | | | | | - Motoi Takenaka
- Department of Dermatology, Nagasaki University Hospital, Nagasaki, Japan
| | - Shinichi Watanabe
- Department of Dermatology, Teikyo University School of Medicine, Tokyo, Japan
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9
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Kapica M, Puzio I, Kato I, Kuwahara A, Zabielski R, Antushevich H. Exogenous obestatin affects pancreatic enzyme secretion in rat through two opposite mechanisms, direct inhibition and vagally-mediated stimulation. J Anim Feed Sci 2018. [DOI: 10.22358/jafs/89734/2018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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10
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Yoshikawa Y, Takano O, Kato I, Takahashi Y, Shima F, Kataoka T. Ras inhibitors display an anti-metastatic effect by downregulation of lysyl oxidase through inhibition of the Ras-PI3K-Akt-HIF-1α pathway. Cancer Lett 2017; 410:82-91. [PMID: 28951129 DOI: 10.1016/j.canlet.2017.09.017] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 09/07/2017] [Accepted: 09/17/2017] [Indexed: 02/08/2023]
Abstract
Metastasis stands as the major obstacle for the survival from cancers. Nonetheless most existing anti-cancer drugs inhibit only cell proliferation, and discovery of agents having both anti-proliferative and anti-metastatic properties would be more beneficial. We previously reported the discovery of small-molecule Ras inhibitors, represented by Kobe0065, that displayed anti-proliferative activity on xenografts of human colorectal cancer (CRC) cell line SW480 carrying the K-rasG12Vgene. Here we show that treatment of cancer cells carrying the activated ras genes with Kobe0065 or a siRNA targeting Ras downregulates the expression of lysyl oxidase (LOX), which has been implicated in metastasis. LOX expression is enhanced by co-expression of RasG12V through activation of phosphatidylinositol 3-kinase (PI3K)/Akt and concomitant accumulation of hypoxia-inducible factor (HIF)-1α. Furthermore, Kobe0065 effectively inhibits not only migration and invasion of cancer cells carrying the activated ras genes but also lung metastasis of human CRC cell line SW620 carrying the K-rasG12V gene. Collectively, these results indicate that Kobe0065 prevents metastasis through inhibition of the Ras-PI3K-Akt-HIF-1α-LOX signaling and suggest that Ras inhibitors in general might exhibit both anti-proliferative and anti-metastatic properties toward cancer cells carrying the activated ras genes.
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Affiliation(s)
- Yoko Yoshikawa
- Division of Molecular Biology, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, 650-0017, Japan
| | - Osamu Takano
- Division of Molecular Biology, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, 650-0017, Japan
| | - Ichiro Kato
- Division of Molecular Biology, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, 650-0017, Japan
| | - Yoshihisa Takahashi
- Division of Molecular Biology, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, 650-0017, Japan
| | - Fumi Shima
- Drug Discovery Science, Division of Advanced Medical Science, Department of Science, Technology and Innovation, Kobe University Graduate School of Science, Technology and Innovation, Kobe, 650-0017, Japan.
| | - Tohru Kataoka
- Division of Molecular Biology, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, Kobe, 650-0017, Japan.
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11
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Nakazawa M, Imai T, Matsumiya Y, Suematsu M, Ohta Y, Ohnishi T, Ohmae M, Chisoku H, Kato I, Tada SY, Takeshita A. A phase II study of combination chemotherapy with cetuximab/S-1/low dose cisplatin as neoadjuvant manner for oral squamous cell carcinoma patients. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx374.030] [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: 11/13/2022] Open
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12
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Słupecka M, Grzesiak P, Kwiatkowski J, Gajewska M, Kuwahara A, Kato I, Woliński J. The influence of enteral obestatin administration to suckling rats on intestinal contractility. Gen Comp Endocrinol 2017; 248:69-78. [PMID: 28212895 DOI: 10.1016/j.ygcen.2017.02.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2016] [Revised: 01/24/2017] [Accepted: 02/13/2017] [Indexed: 12/13/2022]
Abstract
This study investigated the effect of enteral administration of obestatin on the contractility of whole-thickness preparations of duodenum and middle jejunum, as well as on the morphology of the enteric nervous system (ENS). Suckling rats were assigned to 3 groups (n=12) treated with: C-saline solution; LO-obestatin (125nmol/kgb.wt); HO-obestatin (250nmol/kgb.wt). Saline solution or obestatin were administered twice daily, from the 14th to the 21st day of life. Sections were studied in an organ bath, for isometric recording in the presence of acetylocholine (ACh), atropine (ATR) and tetradotoxin (TTX). Thickness of intestinal muscularis layer, the number of interstitial cells of Cajal (ICC) were measured in the paraffin sections. The immunodetection of Muscarinic Acetylocholine Receptor 2 (M2 receptor) was performed in the intestinal segments. In both intestinal segments HO treatment decreased the amplitude of spontaneous contraction compared to that observed in the C group. In the middle jejunum, the LO treatment also decreased the amplitude. TTX and ATR had no effect on amplitude of spontaneous contraction in the jejunum of LO and HO-treated animals. Compared to the C group, duodenal sections from HO animals and middle jejunum sections from LO and HO groups displayed a lower amplitude in response to ACh and EFS evoked contraction. An increase in the thickness of the muscularis layer was observed in the duodenum of LO and HO groups whereas the number ICC did not change significantly after treatment with obestatin. Moreover, the enteral administration of obestatin did not effect significantly on the cytoplasmic expression of M2 receptor in the jejunum. Our study demonstrated that enteral administration of obestatin to suckling rats influences small intestine contractility in the segment specific manner.
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Affiliation(s)
- M Słupecka
- Department of Animal Physiology, The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Jabłonna, Poland.
| | - P Grzesiak
- Department of Animal Physiology, The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Jabłonna, Poland
| | - J Kwiatkowski
- Department of Animal Physiology, The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Jabłonna, Poland
| | - M Gajewska
- Department of Physiological Sciences, Faculty of Veterinary Medicine, Warsaw University of Life Sciences, Warsaw, Poland
| | - A Kuwahara
- Laboratory of Physiology, Institute for Environmental Sciences and Graduate School of Nutritional and Enviromental Science, University of Shizuoka, Japan
| | - I Kato
- Department of Medical Biochemistry, Kobe Pharmaceutical University, Japan
| | - J Woliński
- Department of Animal Physiology, The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Jabłonna, Poland
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13
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Kagawa T, Kishimoto H, Ohara T, Tazawa H, Kagawa S, Nagasaka T, Nohara S, Kato I, Sandhu A, Aono H, Fujiwara T. Abstract 3101: Hyperthermia at the single-cell level for disseminated cancer disease with immuno-magnetic nanoparticles. Cancer Res 2017. [DOI: 10.1158/1538-7445.am2017-3101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Hyperthermia using magnetic nanoparticles and alternating magnetic field is promising for cancer therapy. In most cases, the usefulness of this magnetic nanoparticle-based hyperthermia has been shown by applying magnetic nanoparticles to tumor tissue such as a subcutaneous tumor with direct injection technique; however, if the magnetic nanoparticles can be cancer cell-specifically delivered at the cellular level, the magnetic field hyperthermia would have the potential to treat various sorts of disseminated cancer diseases. The aim of this study is to prove this concept. Maghemite nanoparticles (MNPs) were conjugated with the anti-HER2 antibody (Tmab) for cancer targeting, and the Tmab-MNPs were applied to the co-culture flask containing both HER2-expressing breast cancer AU565 cells and normal fibroblast FEF3 cells. Thirty minutes later from the Tmab-MNPs administration, the medium was removed and the cells were washed to remove excess Tmab-MNPs. Prussian blue iron staining and immunostaining for Tmab showed co-localization of the maghemite nanoparticles and Tmab only on the cancer cells, which suggested that MNPs conjugation with Tmab was successful and that cancer specific delivery of MNPs at the cellular level was achieved in vitro. Moreover, application of alternating current magnetic field at 280 kHz for 1 hour caused apoptotic-like cell death only to cancer cells without any cell damage to normal fibroblast FEF3 cells. Intracellular hyperthermia using cancer-specific antibody-modified magnetic nanoparticles have the potential to be applied to the treatment of disseminated cancer diseases.
Citation Format: Tetsuya Kagawa, Hiroyuki Kishimoto, Toshiaki Ohara, Hiroshi Tazawa, Shunsuke Kagawa, Takeshi Nagasaka, Satoshi Nohara, Ichiro Kato, Adarsh Sandhu, Hiromichi Aono, Toshiyoshi Fujiwara. Hyperthermia at the single-cell level for disseminated cancer disease with immuno-magnetic nanoparticles [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2017; 2017 Apr 1-5; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2017;77(13 Suppl):Abstract nr 3101. doi:10.1158/1538-7445.AM2017-3101
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Affiliation(s)
- Tetsuya Kagawa
- 1Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Hiroyuki Kishimoto
- 1Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Toshiaki Ohara
- 1Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Hiroshi Tazawa
- 1Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Shunsuke Kagawa
- 1Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Takeshi Nagasaka
- 1Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | | | | | - Adarsh Sandhu
- 3Graduate School of Information & Engineering, University of Electro-Communications, Tokyo, Japan
| | - Hiromichi Aono
- 4Graduate School of Science and Engineering, Ehime University, Ehime, Japan
| | - Toshiyoshi Fujiwara
- 1Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
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14
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Eguchi H, Horita N, Ushio R, Kato I, Nakajima Y, Ota E, Kaneko T. Diagnostic test accuracy of antigenaemia assay for PCR-proven cytomegalovirus infection-systematic review and meta-analysis. Clin Microbiol Infect 2017; 23:907-915. [PMID: 28506786 DOI: 10.1016/j.cmi.2017.05.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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: 02/02/2017] [Revised: 04/21/2017] [Accepted: 05/07/2017] [Indexed: 12/20/2022]
Abstract
OBJECTIVES We aimed to assess diagnostic test accuracy of antigenaemia assay for PCR-proven cytomegalovirus (CMV) infection. METHODS We systematically searched studies that provide data both on sensitivity and specificity of the CMV antigenaemia assay using the PCR as the reference standard. Adults, children, infants, individuals who were immunocompromised for any reason, symptomatic patients and asymptomatic individuals were all included. A hierarchical summary receiver operating characteristics model was used for diagnostic meta-analysis. Study quality was assessed by Revised Tool for the Quality Assessment of Diagnostic Accuracy Studies. Protocol registration identification is CRD42016035892. RESULTS We identified 75 eligible articles including 9058 CMV PCR-positive individuals and 22 232 PCR-negative individuals. The diagnostic odds ratio for positive antigenaemia was 30 (95% CI 24-38, I2 = 28%) and the area under the hierarchical summary receiver operating characteristic curve was 0.86 (95% CI 0.83-0.88). The summary estimates of sensitivity and specificity were 0.65 (95% CI 0.59-0.70) and 0.94 (95% CI 0.93-0.95), respectively. The positive likelihood ratio of 10.9 (95% CI 8.5-14.0) suggested that a positive result from the antigenaemia assay greatly increased the probability of PCR-proven CMV infection, but a negative likelihood ratio of 0.38 (95% CI 0.32-0.44) indicated that a negative result led to a small decrease in the probability of PCR-proven CMV infection. Sensitivity and subgroup analyses replicated these results. CONCLUSIONS The antigenaemia assay overlooked 35% of PCR-proven CMV infections; hence, a negative result of an antigenaemia assay could not rule out a CMV infection.
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Affiliation(s)
- H Eguchi
- Harvard TH Chan School of Public Health, Boston, MA, USA; Department of Public Health, Kitasato University School of Medicine, Kanagawa, Japan
| | - N Horita
- Department of Pulmonology, Yokohama City University Graduate School of Medicine, Yokohama, Japan.
| | - R Ushio
- Department of Pulmonology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - I Kato
- Department of Molecular Pathology, Yokohama City Graduate University School of Medicine, Yokohama, Japan
| | - Y Nakajima
- Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - E Ota
- Global Health Nursing, Graduate School of Nursing Science, St Luke's International University, Tokyo, Japan
| | - T Kaneko
- Department of Pulmonology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
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15
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Saito T, Shimazaki Y, Kiyohara Y, Kato I, Kubo M, Iida M, Koga T. The Severity of Periodontal Disease is Associated with the Development of Glucose Intolerance in Non-diabetics: The Hisayama Study. J Dent Res 2016; 83:485-90. [PMID: 15153457 DOI: 10.1177/154405910408300610] [Citation(s) in RCA: 134] [Impact Index Per Article: 16.8] [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: 11/16/2022] Open
Abstract
Inflammation is hypothesized to play a significant role in the development of type 2 diabetes; however, reports on clinical inflammatory conditions are limited. Studies have suggested that periodontitis affects glucose control in diabetics. This community-based study examined the relationship between periodontitis and glucose tolerance status, including changes in status. The relationship between periodontal condition and the results of a 75-g oral glucose tolerance test was examined in 961 adults in 1998. Deep pockets (mean pocket depth > 2.0 mm) were significantly associated with impaired glucose tolerance and with diabetes as compared with shallow pockets (< 1.3 mm). In the subgroup with normal glucose tolerance 10 years previously, subjects who subsequently developed impaired glucose tolerance were significantly more likely to have deep pockets. Deep pockets were closely related to current glucose tolerance status and the development of glucose intolerance.
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Affiliation(s)
- T Saito
- Department of Preventive Dentistry, Kyushu University Faculty of Dental Science, Maidashi 3-1-1, Higashi-ku, Fukuoka 812-8582, Japan.
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16
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Antuschevich H, Kapica M, Krawczynska A, Herman A, Kato I, Kuwahara A, Zabielski R. The role of apelin in the modulation of gastric and pancreatic enzymes activity in adult rats. J Physiol Pharmacol 2016; 67:403-409. [PMID: 27512001] [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] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Accepted: 04/13/2016] [Indexed: 06/06/2023]
Abstract
Apelin is considered as important gut regulatory peptide ligand of APJ receptor with a potential physiological role in gastrointestinal cytoprotection, regulation of food intake and drinking behavior. Circulating apelin inhibits secretion of pancreatic juice through vagal- cholecystokinin-dependent mechanism and reduces local blood flow. Our study was aimed to determine the effect of fundectomy and intraperitoneal or intragastric administration of apelin-13 on pancreatic and gastric enzymes activities in adult rats. Fundectomy is a surgical removal of stomach fundus - maine site apelin synthesis. Three independent experiments were carried out on Wistar rats. In the first and second experiment apelin-13 was given by intragastric or intraperitoneal way twice a day for 10 days (100 nmol/kg b.w.). Control groups received the physiological saline respectively. In the third experiment the group of rats after fundectomy were used. Fundectomized rats did not receive apelin and the rats from control group were 'sham operated'. At the end of experiment rats were sacrificed and blood from rats was withdrawn for apelin and CCK (cholecystokinin) radioimmunoassay analysis and pancreas and stomach tissues were collected for enzyme activity analyses. Intragastric and intraperitoneal administrations of apelin-13 increased basal plasma CCK level and stimulated gastric and pancreatic enzymes activity in rats. In animals after fundectomy decreased activity of studied enzymes was observed, as well as basal plasma apelin and CCK levels. In conclusion, apelin can effects on CCK release and stimulates some gastric and pancreatic enzymes activity in adult rats while fudectomy suppresses those processes. Changes in the level of pancreatic lipase activity point out that apelin may occurs as a regulator of lipase secretion.
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Affiliation(s)
- H Antuschevich
- The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Jablonna, Poland.
| | - M Kapica
- Department of Animal Physiology, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Lublin, Poland
| | - A Krawczynska
- The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Jablonna, Poland
| | - A Herman
- The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Jablonna, Poland
| | - I Kato
- Laboratory of Physiology, University of Shizuoka, Shizuoka, Japan
| | - A Kuwahara
- Laboratory of Physiology, University of Shizuoka, Shizuoka, Japan
| | - R Zabielski
- Department of Physiological Sciences-SGGW, Faculty of Veterinary Medicine, Warsaw University of Life Sciences, Warsaw, Poland
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Antushevich A, Kapica M, Kuwahara A, Kato I, Krawczyńska A, Herman A, Pawlina B, Zabielski R. The apelin-13 influences the activity of pancreatic enzymes in young rats. J Anim Feed Sci 2016. [DOI: 10.22358/jafs/65576/2016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Abstract
Polymorphic microsatellite dinucleotide (cytosine-adenine, CA) repeats of the insulin-like growth factor-I (IGF-I) gene may have implications in the development of certain types of cancer and osteoporosis. We studied correlations between IGF-I genotypes determined by direct sequencing and plasma IGF-I levels among 113 healthy individuals (60 men and 53 women), who were originally enrolled as controls for hospital-based case-control studies of breast and prostate cancer. On the contrary to an earlier observation, there were no differences in plasma IGF-I levels between those with and without the allele of 19 repeats. With adjustment for other confounders, there were no trends in plasma IGF-I levels with increasing or decreasing the number of CA repeats among all study subjects combined, all Whites or all Blacks, suggesting no overall functional significance of this polymorphism. Opposite trends observed in gender and racial subgroups, i.e., an inverse association between plasma IGF-I levels and the CA repeat length in white women and a positive association in black men, are likely to be chance findings.
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Affiliation(s)
- I Kato
- Karmanos Cancer Institute/Department of Pathology Wayne State University, Detroit, Michigan 48201, USA.
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19
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Hirabayashi Y, Munakata Y, Miyata M, Urata Y, Saito K, Okuno H, Yoshida M, Kodera T, Watanabe R, Miyamoto S, Ishii T, Nakazawa S, Takemori H, Ando T, Kanno T, Komagamine M, Kato I, Takahashi Y, Komatsuda A, Endo K, Murai C, Takakubo Y, Miura T, Sato Y, Ichikawa K, Konta T, Chiba N, Muryoi T, Kobayashi H, Fujii H, Sekiguchi Y, Hatakeyama A, Ogura K, Sakuraba H, Asano T, Kanazawa H, Suzuki E, Takasaki S, Asakura K, Sugisaki K, Suzuki Y, Takagi M, Nakayama T, Watanabe H, Miura K, Mori Y. Clinical and structural remission rates increased annually and radiographic progression was continuously inhibited during a 3-year administration of tocilizumab in patients with rheumatoid arthritis: A multi-center, prospective cohort study by the Michinoku Tocilizumab Study Group. Mod Rheumatol 2016; 26:828-835. [DOI: 10.3109/14397595.2016.1160991] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
| | | | - Masayuki Miyata
- Department of Internal Medicine, Fukushima Red Cross Hospital, Fukushima, Japan,
| | - Yukitomo Urata
- Department of Rheumatology, Tsugaru General Hospital, Gosyogawara, Japan,
| | - Koichi Saito
- Suminoya Rheumatism & Orthopedics Clinic, Iwaki, Japan,
| | - Hiroshi Okuno
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan,
| | - Masaaki Yoshida
- Yoshida Orthopaedic Surgery and Rheumatology Clinic, Morioka, Japan,
| | - Takao Kodera
- Center for Arthritis and Rheumatic Diseases, Tohoku Pharmaceutical University Hospital, Sendai, Japan,
| | - Ryu Watanabe
- Department of Hematology and Rheumatology, Tohoku University Graduate School of Medicine, Sendai, Japan,
| | - Seiya Miyamoto
- Department of Orthopaedic Surgery, Nakadori General Hospital, Akita, Japan,
| | - Tomonori Ishii
- Department of Hematology and Rheumatology, Tohoku University Graduate School of Medicine, Sendai, Japan,
| | | | - Hiromitsu Takemori
- Department of Rheumatology, Aomori Prefectural Central Hospital, Aomori, Japan,
| | - Takanobu Ando
- School of Medicine Department of Orthopaedic Surgery, Iwate Medical University, Morioka, Japan,
| | - Takashi Kanno
- Department of Rheumatology, Ohta Nishinouchi Hospital, Koriyama, Japan,
| | | | - Ichiro Kato
- Department of Arthritis and Rheumatic Diseases, Tohoku Rosai Hospital, Sendai, Japan,
| | | | - Atsushi Komatsuda
- Department of Hematology, Nephrology, and Rheumatology, Akita University Hospital, Akita, Japan,
| | - Kojiro Endo
- Department of Rheumatology and Department of Orthopaedic Surgery, Hoshi General Hospital, Koriyama, Japan,
| | | | - Yuya Takakubo
- Department of Orthopaedic Surgery, Yamagata University Faculty of Medicine, Yamagata, Japan,
| | - Takao Miura
- Department of Orthopaedic Surgery, Hirosaki Memorial Hospital, Hirosaki, Japan,
| | | | - Kazunobu Ichikawa
- Department of Cardiology, Pulmonology, and Nephrology, Yamagata University Faculty of Medicine, Yamagata, Japan,
| | - Tsuneo Konta
- Department of Cardiology, Pulmonology, and Nephrology, Yamagata University Faculty of Medicine, Yamagata, Japan,
| | - Noriyuki Chiba
- Department of Internal Medicine, Morioka National Hospital, Morioka, Japan,
| | | | - Hiroko Kobayashi
- Department of Gastroenterology and Rheumatology, Fukushima Medical University Hospital, Fukushima, Japan,
| | - Hiroshi Fujii
- Department of Hematology and Rheumatology, Tohoku University Graduate School of Medicine, Sendai, Japan,
| | | | - Akira Hatakeyama
- Department of Arthritis and Rheumatic Diseases, Tohoku Rosai Hospital, Sendai, Japan,
| | - Ken Ogura
- Department of Orthopaedic Surgery, Yonezawa City Hospital, Yonezawa, Japan,
| | - Hirotake Sakuraba
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan,
| | - Tomoyuki Asano
- Department of Gastroenterology and Rheumatology, Fukushima Medical University Hospital, Fukushima, Japan,
| | - Hiroshi Kanazawa
- Department of Rheumatology, Aomori Prefectural Central Hospital, Aomori, Japan,
| | - Eiji Suzuki
- Department of Rheumatology, Ohta Nishinouchi Hospital, Koriyama, Japan,
| | - Satoshi Takasaki
- Department of Cardiology, Pulmonology, and Nephrology, Yamagata University Faculty of Medicine, Yamagata, Japan,
| | - Kenichi Asakura
- Department of Internal Medicine, Yuri Kumiai General Hospital, Yurihonjo, Japan,
| | - Kota Sugisaki
- Department of Internal Medicine, Mito Red Cross Hospital, Mito, Japan,
| | | | - Michiaki Takagi
- Department of Orthopaedic Surgery, Yamagata University Faculty of Medicine, Yamagata, Japan,
| | - Takahiro Nakayama
- Department of Internal Medicine, Nihonkai General Hospital, Sakata, Japan, and
| | - Hiroshi Watanabe
- Department of Gastroenterology and Rheumatology, Fukushima Medical University Hospital, Fukushima, Japan,
| | - Keiki Miura
- Department of Orthopaedic Surgery, Tome Citizen Hospital, Miyagi, Japan
| | - Yu Mori
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan,
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Ohmae M, Kato I, Fujita Y, Takaoka H, Nakaawa M. 2834 Outpatient intra-arterial chemotherapy for oral cancer by subcutaneous implantation of a catheter and reservoir: A new chemotherapy method to improve the quality of life and curative effect. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31575-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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21
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Harada K, Kato I, Koike Y, Kimura Y, Nakamura T, Watanabe J. Primary position upbeat nystagmus in man and cats. Adv Otorhinolaryngol 2015; 42:190-4. [PMID: 3213729 DOI: 10.1159/000416103] [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] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- K Harada
- Department of Otolaryngology, Yamagata University School of Medicine, Japan
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22
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Kato I, Watanabe J, Nakamura T, Harada K, Hasegawa Y, Kanayama R. Diagnostic confirmation of lesions in cerebellar peduncles by combined use of optokinetic nystagmus and fixation-suppression of caloric nystagmus. Adv Otorhinolaryngol 2015; 42:202-4. [PMID: 3213731 DOI: 10.1159/000416105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- I Kato
- Department of Otolaryngology, St. Marianna University School of Medicine, Kawasaki, Japan
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23
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Urushibata T, Kato I, Okada T, Takeyama I. Distribution of retinal ganglion cells projecting into the nucleus of the optic tract in rat. Adv Otorhinolaryngol 2015; 41:95-7. [PMID: 3213715 DOI: 10.1159/000416038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The present study indicates that visual signals responsible for OKN are conducted through the retinal ganglion cells mainly contralaterally, and only in the ventral region of the retina ipsilateral to the injection site. The retinal ganglion cells projecting into the NOT ipsilateral to the injection site were identified as small- and medium-sized cells in the rat. The density of the ventral ganglion cells of the retina contralateral to the injection site was lower than that in any other regions of the retina except for the dorsal region of the retina, and the density of the ventral ganglion cells ipsilateral to the injection site was about 4 times greater than that on the contralateral side. This finding requires physiological investigation in the future.
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Affiliation(s)
- T Urushibata
- Department of Otolaryngology, St. Marianna University School of Medicine, Kawasaki, Japan
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Ikarashi T, Kato I, Harada K, Hasegawa T, Koike Y. Effects of pretectal lesions in monkeys on two components of optokinetic nystagmus. Adv Otorhinolaryngol 2015; 41:98-103. [PMID: 3213716 DOI: 10.1159/000416039] [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] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- T Ikarashi
- Department of Otolaryngology, Yamagata University School of Medicine, Japan
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25
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Nakamura T, Kato I, Kanayama R, Koike Y. Abnormalities of visually induced eye movements in thalamic lesions. Adv Otorhinolaryngol 2015; 41:104-8. [PMID: 3213692 DOI: 10.1159/000416040] [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] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- T Nakamura
- Department of Otolaryngology, Yamagata University School of Medicine, Japan
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26
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Noda M, Kato I, Wang X, Hirayama T. ADP-ribosylation and activation of phosphatidylinositol-specific phospholipase C by pseudomonal leukocidin. Antibiot Chemother (1971) 2015; 44:59-62. [PMID: 1666277 DOI: 10.1159/000420298] [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] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- M Noda
- Chiba University School of Medicine, Japan
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27
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Mizukoshi K, Ino H, Ishikawa K, Watanabe Y, Yamazaki H, Kato I, Okubo J, Watanabe I. Epidemiological survey of definite cases of Meniere's disease collected by the seventeen members of the Meniere's Disease Research Committee of Japan in 1975--1976. Adv Otorhinolaryngol 2015; 25:106-11. [PMID: 484342 DOI: 10.1159/000402925] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Between Aril 1975 and December 1976, the second nationwide survey of Meniere's disease in Japan was made by the 17 members of the Meniere's Disease Research Committee of Japan. The epidemiological data from 520 patients with definite Meniere's disease were analyzed in comparison with those from the 126 patients in the non-Meniere vertiginous group (Control A) and the 228 patients in the rhinolaryngological group (Control B). The male:female ratio of definite cases of Meniere's disease was almost the same, and the age distribution peaked at the age group of 40--49 years for males, while the peak for females was at the age group of 30--39 years. 5.8% of the 520 patients had a close relative who also suffered from Meniere's disease. From the epidemiological features, it may appear that the occurrence of vertiginous attacks in Meniere's disease is influenced much more by individual than by environmental factors. However, this feature can be considered as another evidence of the psychosomatic disorders involved in Meniere's disease.
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28
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Sakashita K, Kato I, Daifu T, Saida S, Hiramatsu H, Nishinaka Y, Ebihara Y, Ma F, Matsuda K, Saito S, Hirabayashi K, Kurata T, Uyen LTN, Nakazawa Y, Tsuji K, Heike T, Nakahata T, Koike K. In vitro expansion of CD34(+)CD38(-) cells under stimulation with hematopoietic growth factors on AGM-S3 cells in juvenile myelomonocytic leukemia. Leukemia 2015; 29:606-14. [PMID: 25102944 DOI: 10.1038/leu.2014.239] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Revised: 07/09/2013] [Accepted: 07/24/2014] [Indexed: 12/11/2022]
Abstract
Using serum-containing culture, we examined whether AGM-S3 stromal cells, alone or in combination with hematopoietic growth factor(s), stimulated the proliferation of CD34(+) cells from patients with juvenile myelomonocytic leukemia (JMML). AGM-S3 cells in concert with stem cell factor plus thrombopoietin increased the numbers of peripheral blood CD34(+) cells to approximately 20-fold of the input value after 2 weeks in nine JMML patients with either PTPN11 mutations or RAS mutations, who received allogeneic hematopoietic transplantation. Granulocyte-macrophage colony-stimulating factor (GM-CSF) also augmented the proliferation of JMML CD34(+) cells on AGM-S3 cells. The expansion potential of CD34(+) cells was markedly low in four patients who achieved spontaneous hematological improvement. A large proportion of day-14-cultured CD34(+) cells were negative for CD38 and cryopreservable. Cultured JMML CD34(+)CD38(-) cells expressed CD117, CD116, c-mpl, CD123, CD90, but not CXCR4, and formed GM and erythroid colonies. Day-7-cultured CD34(+) cells from two of three JMML patients injected intrafemorally into immunodeficient mice stimulated with human GM-CSF after transplantation displayed significant hematopoietic reconstitution. The abilities of OP9 cells and MS-5 cells were one-third and one-tenth, respectively, of the value obtained with AGM-S3 cells. Our culture system may provide a useful tool for elucidating leukemogenesis and for therapeutic approaches in JMML.
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MESH Headings
- ADP-ribosyl Cyclase 1/genetics
- ADP-ribosyl Cyclase 1/metabolism
- Adolescent
- Animals
- Antigens, CD34/genetics
- Antigens, CD34/metabolism
- Cell Proliferation/drug effects
- Clone Cells
- Coculture Techniques
- Embryonic Stem Cells/drug effects
- Embryonic Stem Cells/metabolism
- Embryonic Stem Cells/pathology
- GTP Phosphohydrolases/genetics
- GTP Phosphohydrolases/metabolism
- Gene Expression Regulation, Leukemic
- Granulocyte-Macrophage Colony-Stimulating Factor/pharmacology
- Hematopoietic Stem Cells/drug effects
- Hematopoietic Stem Cells/metabolism
- Hematopoietic Stem Cells/pathology
- Humans
- Leukemia, Myelomonocytic, Juvenile/genetics
- Leukemia, Myelomonocytic, Juvenile/metabolism
- Leukemia, Myelomonocytic, Juvenile/pathology
- Membrane Proteins/genetics
- Membrane Proteins/metabolism
- Mice
- Mice, Inbred NOD
- Mice, SCID
- Mutation
- Neoplastic Stem Cells/metabolism
- Neoplastic Stem Cells/pathology
- Neoplastic Stem Cells/transplantation
- Protein Tyrosine Phosphatase, Non-Receptor Type 11/genetics
- Protein Tyrosine Phosphatase, Non-Receptor Type 11/metabolism
- Proto-Oncogene Proteins/genetics
- Proto-Oncogene Proteins/metabolism
- Proto-Oncogene Proteins p21(ras)
- Signal Transduction
- Stromal Cells/drug effects
- Stromal Cells/metabolism
- Stromal Cells/pathology
- ras Proteins/genetics
- ras Proteins/metabolism
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Affiliation(s)
- K Sakashita
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Japan
| | - I Kato
- Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - T Daifu
- Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - S Saida
- Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - H Hiramatsu
- Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Y Nishinaka
- Department of Clinical Application, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Y Ebihara
- 1] Department of Pediatric Hematology/Oncology, Research Hospital, Institute of Medical Science, University of Tokyo, Minato-ku, Japan [2] Division of Stem Cell Processing, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, University of Tokyo, Minato-ku, Japan
| | - F Ma
- 1] Division of Stem Cell Processing, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, University of Tokyo, Minato-ku, Japan [2] Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, China
| | - K Matsuda
- Department of Laboratory Medicine, Shinshu University Hospital, Matsumoto, Japan
| | - S Saito
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Japan
| | - K Hirabayashi
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Japan
| | - T Kurata
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Japan
| | - L T N Uyen
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Japan
| | - Y Nakazawa
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Japan
| | - K Tsuji
- 1] Department of Pediatric Hematology/Oncology, Research Hospital, Institute of Medical Science, University of Tokyo, Minato-ku, Japan [2] Division of Stem Cell Processing, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, University of Tokyo, Minato-ku, Japan [3] Department of Pediatrics, Shinshu Ueda Medical Center, National Hospital Organization, Ueda, Japan
| | - T Heike
- Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - T Nakahata
- Department of Clinical Application, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - K Koike
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Japan
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Sano Y, Morita Ogawa T, Hayashi Y, Itoi S, Yokote N, Inoh K, Suzuki Y, Kato I, Takagi S, Saito S. GM-009 Multicenter study of environmental 5-FU contamination during normal mixing of antineoplastic drugs. Eur J Hosp Pharm 2015. [DOI: 10.1136/ejhpharm-2015-000639.277] [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: 11/03/2022] Open
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30
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Mori T, Kohori J, Kitamura H, Inokuchi T, Kato I, Sone K, Ishikawa M, Maeda F, Fukami M, Isobe S, Sato S. Development of F 1-hybrid Strawberry of Seed Propagation Type Named ‘Yotsuboshi’ by Collaborative Breeding among Institutes. ACTA ACUST UNITED AC 2015. [DOI: 10.2503/hrj.14.409] [Citation(s) in RCA: 6] [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: 11/22/2022]
Affiliation(s)
| | | | | | | | - Ichiro Kato
- Kagawa Prefecture Agricultural Experiment Station
| | - Kazuyoshi Sone
- National Agriculture and Food Research Organization Kyusyu Agricultural Research Center
| | | | - Fumi Maeda
- Chiba Prefectural Agriculture and Forestry Research Center
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31
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Yukawa H, Nakagawa S, Yoshizumi Y, Watanabe M, Saito H, Miyamoto Y, Noguchi H, Oishi K, Ono K, Sawada M, Kato I, Onoshima D, Obayashi M, Hayashi Y, Kaji N, Ishikawa T, Hayashi S, Baba Y. Novel positively charged nanoparticle labeling for in vivo imaging of adipose tissue-derived stem cells. PLoS One 2014; 9:e110142. [PMID: 25365191 PMCID: PMC4217721 DOI: 10.1371/journal.pone.0110142] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Accepted: 09/16/2014] [Indexed: 01/20/2023] Open
Abstract
Stem cell transplantation has been expected to have various applications for regenerative medicine. However, in order to detect and trace the transplanted stem cells in the body, non-invasive and widely clinically available cell imaging technologies are required. In this paper, we focused on magnetic resonance (MR) imaging technology, and investigated whether the trimethylamino dextran-coated magnetic iron oxide nanoparticle -03 (TMADM-03), which was newly developed by our group, could be used for labeling adipose tissue-derived stem cells (ASCs) as a contrast agent. No cytotoxicity was observed in ASCs transduced with less than 100 µg-Fe/mL of TMADM-03 after a one hour transduction time. The transduction efficiency of TMADM-03 into ASCs was about four-fold more efficient than that of the alkali-treated dextran-coated magnetic iron oxide nanoparticle (ATDM), which is a major component of commercially available contrast agents such as ferucarbotran (Resovist), and the level of labeling was maintained for at least two weeks. In addition, the differentiation ability of ASCs labeled with TMADM-03 and their ability to produce cytokines such as hepatocyte growth factor (HGF), vascular endothelial growth factor (VEGF) and prostaglandin E2 (PGE2), were confirmed to be maintained. The ASCs labeled with TMADM-03 were transplanted into the left kidney capsule of a mouse. The labeled ASCs could be imaged with good contrast using a 1T MR imaging system. These data suggest that TMADM-03 can therefore be utilized as a contrast agent for the MR imaging of stem cells.
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Affiliation(s)
- Hiroshi Yukawa
- Research Center for Innovative Nanobiodevices, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Shingo Nakagawa
- Department of Medical Technology, Nagoya University, Graduate School of Medicine, Daikominami, Higashi-ku, Nagoya 461-8673, Japan
| | - Yasuma Yoshizumi
- Department of Medical Technology, Nagoya University, Graduate School of Medicine, Daikominami, Higashi-ku, Nagoya 461-8673, Japan
| | - Masaki Watanabe
- Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Hiroaki Saito
- Nagoya Research Laboratory, MEITO Sangyo Co., Ltd., Kiyosu 452-0067, Japan
| | - Yoshitaka Miyamoto
- Department of Advanced Medicine in Biotechnology and Robotics, Graduate School of Medicine, Nagoya University, Higashi-ku, Nagoya 461-0047, Japan
| | - Hirofumi Noguchi
- Department of Regenerative Medicine, Graduate School of Medicine, University of the Ryukyus, 207 Uehara, Nishihara, Okinawa 903-0215, Japan
| | - Koichi Oishi
- Research Institute of Environmental Medicine, Stress Adaption and Protection, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan
| | - Kenji Ono
- Research Institute of Environmental Medicine, Stress Adaption and Protection, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan
| | - Makoto Sawada
- Research Institute of Environmental Medicine, Stress Adaption and Protection, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan
| | - Ichiro Kato
- Nagoya Research Laboratory, MEITO Sangyo Co., Ltd., Kiyosu 452-0067, Japan
| | - Daisuke Onoshima
- Institute of Innovative for Future Society, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Momoko Obayashi
- Research Center for Innovative Nanobiodevices, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Yumi Hayashi
- Department of Medical Technology, Nagoya University, Graduate School of Medicine, Daikominami, Higashi-ku, Nagoya 461-8673, Japan
| | - Noritada Kaji
- Research Center for Innovative Nanobiodevices, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
- Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Tetsuya Ishikawa
- Department of Medical Technology, Nagoya University, Graduate School of Medicine, Daikominami, Higashi-ku, Nagoya 461-8673, Japan
| | - Shuji Hayashi
- Department of Advanced Medicine in Biotechnology and Robotics, Graduate School of Medicine, Nagoya University, Higashi-ku, Nagoya 461-0047, Japan
| | - Yoshinobu Baba
- Research Center for Innovative Nanobiodevices, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
- Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Hayashi-cho 2217-14, Takamatsu 761-0395, Japan
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Słupecka M, Pierzynowski SG, Kuwahara A, Kato I, Woliński J. Age-dependent effect of obestatin on intestinal contractility in Wistar rats. Gen Comp Endocrinol 2014; 208:109-15. [PMID: 25193331 DOI: 10.1016/j.ygcen.2014.08.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [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: 03/17/2014] [Revised: 05/28/2014] [Accepted: 08/10/2014] [Indexed: 11/26/2022]
Abstract
Obestatin is a 23-amino acid peptide encoded by the ghrelin gene. We have investigated the effect of obestatin on intestinal contractility in rats ranging from the suckling period till adolescence. Duodenal and middle jejunum whole-thickness preparations from neonatal and adult rats were studied in an organ bath, for isometric recording under treatment with obestatin (1μmolL(-1)) in the presence of acetylocholine (ACh), atropine and tetradotoxin (TTX). Both the EFS and ACh-stimulated contractile response, as well as spontaneous contractile activity is age-dependent and specific for the segment of jejunum. Except for the middle jejunum of 7day old rats, treatment with obestatin caused a significant TTX-sensitive increase in the amplitude of EFS-stimulated off-contraction of both intestinal segments studied. Following injection of obestatin, the amplitude of spontaneous contraction in the duodenum increased in 7day old rats. In the middle jejunum, treatment with obestatin significantly increased both the amplitude and frequency of spontaneous contraction in rats till the 28th day of life, whereas in adult rats the observed effect of obestatin was the opposite (P<0.001 and P<0.0001, respectively). The effects of treatment with obestatin on stimulation with increasing doses of ACh were only observed in the preparations from suckling rats. ACh-stimulated contractility in the duodenum was decreased while in the middle jejunum the observed effect was opposite. These results indicate the importance of peripheral obestatin in the cholinergic control of intestinal contractility in both neonatal and adult rats.
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Affiliation(s)
- M Słupecka
- Department of Endocrinology, The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Jabłonna, Poland.
| | - S G Pierzynowski
- Department of Biology, Lund University, Lund, Sweden; Department of Medical Biology, Institute of Agricultural Medicine, Lublin, Poland
| | - A Kuwahara
- Laboratory of Physiology, Institute for Environmental Sciences & Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, Shizuoka, Japan
| | - I Kato
- Department of Bioorganic Chemistry, Faculty of Pharmaceutical Sciences, Hokuriku University, Kanazawa, Japan
| | - J Woliński
- Department of Endocrinology, The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Jabłonna, Poland
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Nakazawa M, Imai T, Kato I, Ohmae M, Sumi T, Niki A, Suematsu M, Matsumoto Y, Amino K. The Effect of Preoperative Chemotherapy with S-1 Alone for Oral Squamous Cell Carcinoma Patients. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu340.32] [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: 11/14/2022] Open
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Maruyama R, Maeda K, Moroda H, Kato I, Inoue M, Miyakawa H, Aonishi T. Detecting cells using non-negative matrix factorization on calcium imaging data. Neural Netw 2014; 55:11-9. [PMID: 24705544 DOI: 10.1016/j.neunet.2014.03.007] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2013] [Revised: 03/11/2014] [Accepted: 03/18/2014] [Indexed: 10/25/2022]
Abstract
We propose a cell detection algorithm using non-negative matrix factorization (NMF) on Ca2+ imaging data. To apply NMF to Ca2+ imaging data, we use the bleaching line of the background fluorescence intensity as an a priori background constraint to make the NMF uniquely dissociate the background component from the image data. This constraint helps us to incorporate the effect of dye-bleaching and reduce the non-uniqueness of the solution. We demonstrate that in the case of noisy data, the NMF algorithm can detect cells more accurately than Mukamel's independent component analysis algorithm, a state-of-art method. We then apply the NMF algorithm to Ca2+ imaging data recorded on the local activities of subcellular structures of multiple cells in a wide area. We show that our method can decompose rapid transient components corresponding to somas and dendrites of many neurons, and furthermore, that it can decompose slow transient components probably corresponding to glial cells.
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Affiliation(s)
- Ryuichi Maruyama
- Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, 4259-G5-17 Nagatuda-cho, Midori-ku, Yokohama, Kanagawa, 226-8502, Japan
| | - Kazuma Maeda
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Hajime Moroda
- Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, 4259-G5-17 Nagatuda-cho, Midori-ku, Yokohama, Kanagawa, 226-8502, Japan
| | - Ichiro Kato
- Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, 4259-G5-17 Nagatuda-cho, Midori-ku, Yokohama, Kanagawa, 226-8502, Japan
| | - Masashi Inoue
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Hiroyoshi Miyakawa
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Toru Aonishi
- Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, 4259-G5-17 Nagatuda-cho, Midori-ku, Yokohama, Kanagawa, 226-8502, Japan.
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Regenbogen S, Veenstra C, Abrahamse P, Ward K, Kato I, Morris A. The Personal Financial Burden of Postoperative Complications in Colorectal Cancer. J Surg Res 2014. [DOI: 10.1016/j.jss.2013.11.410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Matsumura K, Arima H, Tominaga M, Ohtsubo T, Sasaguri T, Fujii K, Fukuhara M, Uezono K, Morinaga Y, Ohta Y, Otonari T, Kawasaki J, Kato I, Tsuchihashi T. Impact of antihypertensive medication adherence on blood pressure control in hypertension: the COMFORT study. QJM 2013; 106:909-14. [PMID: 23696676 DOI: 10.1093/qjmed/hct121] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND It has not been fully elucidated whether antihypertensive medication adherence affects blood pressure (BP) control in hypertension cases. AIM To investigate the association of adherence to antihypertensive drug regimens and BP control using data from the Combination Pill of Losartan Potassium and Hydrochlorothiazide for Improvement of Medication Compliance Trial (COMFORT) study. DESIGN An observational analysis from a randomized controlled trial. METHODS A total of 203 hypertensive subjects were randomly assigned to a daily regimen of a combination pill (losartan 50 mg/hydrochlorothiazide 12.5 mg) or two pills, an angiotensin II receptor blocker and a thiazide diuretic. Medication adherence calculated based on pill counts and BPs was evaluated at 1, 3 and 6 months after randomization. RESULTS The subjects were divided into three groups according to their adherence, i.e. relatively low-adherence (<90%; n = 19), moderate-adherence (90-99%; n = 71) and high-adherence (100%; n = 113) groups. Clinical characteristics of the subjects including BP, sex, randomized treatments and past medical history did not differ significantly among the three groups. Achieved follow-up BPs over the 6-month treatment period, which were adjusted for age, sex, baseline BP and randomized treatment, were significantly higher in the low-adherence group (135/78 mmHg) compared with the high-adherence (130/74 mmHg; P = 0.02/0.02) and the moderate-adherence (128/74 mmHg; P = 0.003/0.02) groups. CONCLUSION Low adherence to an antihypertensive-drug regimen was associated with poor BP control.
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Affiliation(s)
- K Matsumura
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka 812-8582, Japan.
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Ishigaki K, Murakami T, Saito T, Sato T, Kato I, Osawa M. P.8.5 Therapeutic intervention for dysphagia in patients with Fukuyama congenital muscular dystrophy. Neuromuscul Disord 2013. [DOI: 10.1016/j.nmd.2013.06.506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Akther S, Korshnova N, Zhong J, Liang M, Cherepanov SM, Lopatina O, Komleva YK, Salmina AB, Nishimura T, Fakhrul AA, Hirai H, Kato I, Yamamoto Y, Takasawa S, Okamoto H, Higashida H. CD38 in the nucleus accumbens and oxytocin are related to paternal behavior in mice. Mol Brain 2013; 6:41. [PMID: 24059452 PMCID: PMC3848913 DOI: 10.1186/1756-6606-6-41] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Accepted: 09/17/2013] [Indexed: 11/17/2022] Open
Abstract
Background Mammalian sires participate in infant care. We previously demonstrated that sires of a strain of nonmonogamous laboratory mice initiate parental retrieval behavior in response to olfactory and auditory signals from the dam during isolation in a new environment. This behavior is rapidly lost in the absence of such signals when the sires are caged alone. The neural circuitry and hormones that control paternal behavior are not well-understood. CD38, a membrane glycoprotein, catalyzes synthesis of cyclic ADP-ribose and facilitates oxytocin (OT) secretion due to cyclic ADP-ribose-dependent increases in cytosolic free calcium concentrations in oxytocinergic neurons in the hypothalamus. In this paper, we studied CD38 in the nucleus accumbens (NAcc) and the role of OT on paternal pup retrieval behavior using CD38 knockout (CD38−/−) mice of the ICR strain. Results CD38−/− sires failed to retrieve when they were reunited with their pups after isolation together with the mate dams, but not with pup, in a novel cage for 10 min. CD38−/− sires treated with a single subcutaneous injection of OT exhibited recovery in the retrieval events when caged with CD38−/− dams treated with OT. We introduced human CD38 in the NAcc of CD38−/− sires using a lentiviral infection technique and examined the effects of local expression of CD38. Pairs of knockout dams treated with OT and sires expressing CD38 in the NAcc showed more retrieval (83% of wild-type sire levels). Complete recovery of retrieval was obtained in sires with the expression of CD38 in the NAcc in combination with OT administration. Other paternal behaviors, including pup grooming, crouching and huddling, were also more common in CD38−/− sires with CD38 expression in the NAcc compared with those in CD38−/− sires without CD38 expression in the NAcc. Conclusions CD38 in the NAcc and OT are critical in paternal behavior.
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Affiliation(s)
- Shirin Akther
- Kanazawa University Center for Child Mental Development, Kanazawa 920-8640, Japan.
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Antushevich H, Pawlina B, Kapica M, Krawczynska A, Herman AP, Kuwahara A, Kato I, Zabielski R. Influence of fundectomy and intraperitoneal or intragastric administration of apelin on apoptosis, mitosis, and DNA repair enzyme OGG1,2 expression in adult rats gastrointestinal tract and pancreas. J Physiol Pharmacol 2013; 64:423-428. [PMID: 24101388] [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] [Subscribe] [Scholar Register] [Received: 05/21/2013] [Accepted: 08/15/2013] [Indexed: 06/02/2023]
Abstract
Apelin, endogenous ligand of G protein-coupled apelin receptor (APJ), is released into the gastrointestinal lumen, however, local effect of luminal apelin on gut epithelium has not been elucidated so far. The present study aimed to determine the effects of fundectomy, and intraperitoneal or intragastric administration of apelin on pancreatic, gastric and intestinal epithelium apoptosis, mitosis and DNA repair enzyme OGG1,2 expression in adult Wistar rats. Apelin-13 was given by intraperitoneal or gastric gavage twice a day for 10 days (100 nmol/kg b. wt./day). Fundectomized rats did not receive apelin. Control groups received saline as placebo. At the end of the experiment the rats were sacrificed and the pancreas, gastric fundus, duodenum, middle jejunum and colon tissue samples were harvested for immunofluorescence studies. Intraperitoneal and intragastric apelin-13 reduced apoptosis, mitosis and number of DNA damages in rats gastrointestinal tract (p≤0.001) as compared to control. In fundectomized rats, the apoptotic index in the pancreas and colon was decreased (p<0.001), and in the stomach and jejunum was increased (p<0.001). Mitotic index was decreased in all gastrointestinal tissues. Number of DNA damages (p≤0.001) in fundectomized rats was reduced except stomach where OGG1,2 expression was increased (p≤0.001) as compared to control. In conclusion, circulating and luminal exogenous apelin-13 caused similar effects on intestinal epithelium. Endogenous (gastric) apelin is important for renewal of intestinal epithelium in adult rats. Pharmacological doses of apelin-13 may reduce the cell turnover in the upper gastrointestinal tract epithelium and pancreas, and improve the overall gut health.
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Affiliation(s)
- H Antushevich
- The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Jablonna, Poland.
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Liu HX, Lopatina O, Higashida C, Fujimoto H, Akther S, Inzhutova A, Liang M, Zhong J, Tsuji T, Yoshihara T, Sumi K, Ishiyama M, Ma WJ, Ozaki M, Yagitani S, Yokoyama S, Mukaida N, Sakurai T, Hori O, Yoshioka K, Hirao A, Kato Y, Ishihara K, Kato I, Okamoto H, Cherepanov SM, Salmina AB, Hirai H, Asano M, Brown DA, Nagano I, Higashida H. Displays of paternal mouse pup retrieval following communicative interaction with maternal mates. Nat Commun 2013; 4:1346. [PMID: 23299896 PMCID: PMC4089749 DOI: 10.1038/ncomms2336] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2012] [Accepted: 11/27/2012] [Indexed: 01/29/2023] Open
Abstract
Compared with the knowledge of maternal care, much less is known about the factors required for paternal parental care. Here we report that new sires of laboratory mice, though not spontaneously parental, can be induced to show maternal-like parental care (pup retrieval) using signals from dams separated from their pups. During this interaction, the maternal mates emit 38-kHz ultrasonic vocalizations to their male partners, which are equivalent to vocalizations that occur following pheromone stimulation. Without these signals or in the absence of maternal mates, the sires do not retrieve their pups within 5 min. These results show that, in mice, the maternal parent communicates to the paternal parent to encourage pup care. This new paradigm may be useful in the analysis of the parental brain during paternal care induced by interactive communication. Parental responsibilities in mice are usually carried out by the mother of the pups. In this study, the authors show that when mothers are separated from their mouse pups, they emit ultrasonic vocalizations to their male partners, who respond by administering paternal care to the pups.
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Affiliation(s)
- Hong-Xiang Liu
- Kanazawa University 21st Century COE Program on Innovative Brain Science on Development, Learning and Memory, Kanazawa 920-8640, Japan
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Morris A, Gamble C, Hawley S, Griggs J, Abrahamse P, Ward K, Kato I. The Impact of Patient-Physician Relationships on the Quality of Colorectal Cancer Care. J Surg Res 2013. [DOI: 10.1016/j.jss.2012.10.205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Katayama M, Hirai S, Yasumoto M, Nishikawa K, Nagata S, Otsuka M, Kamihagi K, Kato I. Soluble fragments of e-cadherin cell-adhesion molecule increase in urinary-excretion of cancer-patients, potentially indicating its shedding from epithelial tumor-cells. Int J Oncol 2012; 5:1049-57. [PMID: 21559679 DOI: 10.3892/ijo.5.5.1049] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
E-cadherin (Ecad) is well known to be a calcium-ion-dependent cell-cell adhesion molecule expressed mostly in epithelial tissues. Previous immunohistochemical studies suggested that this cell adhesion molecule acts as an invasion suppressor and is negligibly detected in cancer metastatic regions. Soluble Ecad fragments derived from the proteolysed membrane-associated form were detected in culture supernatants of two cell lines, COLO 205 and A-431, with normal distribution of cell surface Ecad. Soluble Ecad levels released into culture of COLO 205 exhibiting reduced cell-cell adhesion were apparently elevated above those of A-431 with tight cell-cell adhesion. Furthermore, human circulation and urine continuously contain soluble Ecad which consists mainly of homogeneous 75-85 kDa extracellular domains. Soluble Ecad urinary level per urinary creatinine level was found to be significantly elevated in 53% of patients suffering from various types of cancers including lung, liver, stomach, colon and rectal cancers, as compared with those in the age-matched healthy subjects. These results suggest that dysfunction of cell surface Ecad is responsible for its enhanced proteolytic shedding in tumorigenesis, which may lead to the decrease of cell surface Ecads. Furthermore, excretion of high levels of soluble Ecad fragments potentially indicates the progression of epithelial tumors excessively degrading cell surface Ecad in clinical subjects.
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Takasaki I, Taniguchi K, Komatsu F, Sasaki A, Andoh T, Nojima H, Shiraki K, Hsu DK, Liu FT, Kato I, Hiraga K, Kuraishi Y. Contribution of spinal galectin-3 to acute herpetic allodynia in mice. Pain 2012; 153:585-592. [DOI: 10.1016/j.pain.2011.11.022] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2011] [Revised: 11/18/2011] [Accepted: 11/18/2011] [Indexed: 10/14/2022]
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Ahmed WA, Tsutsumi M, Nakata S, Mori T, Nishimura Y, Fujisawa T, Kato I, Nakashima M, Kurahashi H, Suzuki K. A functional variation in the hypocretin neuropeptide precursor gene may be associated with obstructive sleep apnea syndrome in Japan. Laryngoscope 2012; 122:925-9. [PMID: 22302634 DOI: 10.1002/lary.23179] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2011] [Accepted: 12/07/2011] [Indexed: 11/08/2022]
Abstract
OBJECTIVES/HYPOTHESIS To evaluate the association of hypocretin neuropeptide precursor gene (HCRT) variations with obstructive sleep apnea syndrome (OSAS) in a cohort of Japanese patients and to further evaluate whether the significant HCRT variations have potential functional consequences on HCRT expression. STUDY DESIGN Case-control genetic association study. METHODS We studied the genetic variations within the HCRT gene. The study population consisted of 100 OSAS patients and 100 control subjects. The HCRT gene was amplified by polymerase chain reaction in all study subjects followed by direct sequencing and analysis of sequencing data. RESULTS Two genetic variations within the HCRT intron, IVS1+16T>C (rs9902709) and IVS1-69G>C, were identified with significant differences between patients and controls (P < .05). A reporter gene assay using HeLa cells showed that the construct containing the C allele of the rs9902709 variation had significantly higher luciferase activity compared with the construct containing the T allele (P = .002). Furthermore, enzyme immunoassay revealed that subjects with T/C and C/C genotypes for rs9902709 had 1.4-fold and 1.5-fold increases in sera levels of orexin-A, respectively. CONCLUSIONS Our genetic association study, followed by functional and quantitative phenotyping assays, demonstrated a functional locus within the HCRT gene, which may act to increase HCRT expression and lead to a protective effect against the development of OSAS.
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Affiliation(s)
- Wael A Ahmed
- Department of Otolaryngology, Second Hospital, School of Medicine, Fujita Health University, Toyoake, Aichi, Japan
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Suzuki H, Usui I, Kato I, Oya T, Kanatani Y, Yamazaki Y, Fujisaka S, Senda S, Ishii Y, Urakaze M, Mahmood A, Takasawa S, Okamoto H, Kobayashi M, Tobe K, Sasahara M. Deletion of platelet-derived growth factor receptor-β improves diabetic nephropathy in Ca²⁺/calmodulin-dependent protein kinase IIα (Thr286Asp) transgenic mice. Diabetologia 2011; 54:2953-62. [PMID: 21833587 DOI: 10.1007/s00125-011-2270-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2011] [Accepted: 07/05/2011] [Indexed: 01/28/2023]
Abstract
AIMS/HYPOTHESIS The activation of platelet-derived growth factor receptor-β (PDGFR-β) signalling is increased in the glomeruli and tubules of diabetic animals. In this study, we examined the role of PDGFR-β signalling during the development of diabetic nephropathy. METHODS We recently generated pancreatic beta cell-specific Ca(2+)/calmodulin-dependent protein kinase IIα (Thr286Asp) transgenic mice (CaMKIIα mice), which show very high plasma glucose levels up to 55.5 mmol/l and exhibit the features of diabetic nephropathy. These mice were crossed with conditional knockout mice in which Pdgfr-β (also known as Pdgfrb) was deleted postnatally. The effect of the deletion of the Pdgfr-β gene on diabetic nephropathy in CaMKIIα mice was evaluated at 10 and 16 weeks of age. RESULTS The plasma glucose concentrations and HbA(1c) levels were elevated in the CaMKIIα mice from 4 weeks of age. Variables indicative of diabetic nephropathy, such as an increased urinary albumin/creatinine ratio, kidney weight/body weight ratio and mesangial area/glomerular area ratio, were observed at 16 weeks of age. The postnatal deletion of the Pdgfr-β gene significantly decreased the urinary albumin/creatinine ratio and mesangial area/glomerular area ratio without affecting the plasma glucose concentration. Furthermore, the increased oxidative stress in the kidneys of the CaMKIIα mice as shown by the increased urinary 8-hydroxydeoxyguanosine (8-OHdG) excretion and the increased expression of NAD(P)H oxidase 4 (NOX4), glutathione peroxidase 1 (GPX1) and manganese superoxide dismutase (MnSOD) was decreased by Pdgfr-β gene deletion. CONCLUSIONS/INTERPRETATION The activation of PDGFR-β signalling contributes to the progress of diabetic nephropathy, with an increase in oxidative stress and mesangial expansion in CaMKIIα mice.
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Affiliation(s)
- H Suzuki
- First Department of Internal Medicine, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan
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Ahmed WA, Suzuki K, Horibe Y, Kato I, Fujisawa T, Nishimura Y. Pathologic evaluation of primary laryngeal anterior commissure carcinoma both in patients who have undergone open surgery as initial treatment and in those who have undergone salvage surgery after irradiation failure. Ear Nose Throat J 2011; 90:223-30. [PMID: 21563091 DOI: 10.1177/014556131109000508] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Laryngeal anterior commissure (AC) cancer has been the subject of much controversy. Our study was aimed at pathologically evaluating the tendency of AC cancer to invade the thyroid cartilage and analyzing the role of thyroid cartilage invasion by tumor cells at the AC as an anatomic cause for irradiation failure. Our study included 36 patients with glottic cancer involving AC. Patients with recurrent or persistent disease after radiotherapy underwent salvage surgery. Surgical specimens from 22 patients who had open surgery, either as primary or salvage surgery, were available for pathologic examination to identify the presence of cartilage invasion. We found microscopic invasion of the thyroid cartilage in 40.9% of the studied tumors. Only 21.4% of patients who had open salvage surgery showed evidence of cartilage invasion at the AC. We concluded that laryngeal AC cancers are more likely to invade the cartilage, and that anatomic risk factors are not the main cause of irradiation failure.
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Affiliation(s)
- Wael A Ahmed
- Department of Otolaryngology, Second Hospital, Fujita Health University, School of Medicine, Nagoya, Japan
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Ogata R, Suzuki S, Ahn JK, Akune Y, Baranov V, Chen KF, Comfort J, Doroshenko M, Fujioka Y, Hsiung YB, Inagaki T, Ishibashi S, Ishihara N, Ishii H, Iwai E, Iwata T, Kato I, Kobayashi S, Komatsu S, Komatsubara TK, Kurilin AS, Kuzmin E, Lednev A, Lee HS, Lee SY, Lim GY, Ma J, Matsumura T, Moisseenko A, Morii H, Morimoto T, Nakajima Y, Nakano T, Nanjo H, Nishi N, Nix J, Nomura T, Nomachi M, Okuno H, Omata K, Perdue GN, Perov S, Podolsky S, Porokhovoy S, Sakashita K, Sasaki T, Sasao N, Sato H, Sato T, Sekimoto M, Shimogawa T, Shinkawa T, Stepanenko Y, Sugaya Y, Sugiyama A, Sumida T, Tajima Y, Takita S, Tsamalaidze Z, Tsukamoto T, Tung YC, Wah YW, Watanabe H, Wu ML, Yamaga M, Yamanaka T, Yoshida HY, Yoshimura Y, Zheng Y. Study of theKL0→π0π0νν¯decay. Int J Clin Exp Med 2011. [DOI: 10.1103/physrevd.84.052009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Furness JB, Hunne B, Matsuda N, Yin L, Russo D, Kato I, Fujimiya M, Patterson M, McLeod J, Andrews ZB, Bron R. Investigation of the presence of ghrelin in the central nervous system of the rat and mouse. Neuroscience 2011; 193:1-9. [PMID: 21835225 DOI: 10.1016/j.neuroscience.2011.07.063] [Citation(s) in RCA: 96] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2011] [Revised: 07/25/2011] [Accepted: 07/25/2011] [Indexed: 11/25/2022]
Abstract
Ghrelin and ghrelin receptor agonist have effects on central neurons in many locations, including the hypothalamus, caudal brain stem, and spinal cord. However, descriptions of the distributions of ghrelin-like immunoreactivity in the CNS in published work are inconsistent. We have used three well-characterized anti-ghrelin antibodies, an antibody to the unacylated form of ghrelin, and a ghrelin peptide assay in rats, mice, ghrelin knockout mice, and ghrelin receptor reporter mice to re-evaluate ghrelin presence in the rodent CNS. The stomach served as a positive control. All antibodies were effective in revealing gastric endocrine cells. However, no specific staining could be found in the brain or spinal cord. Concentrations of antibody 10 to 30 times those effective in the stomach bound to nerve cells in rat and mouse brain, but this binding was not reduced by absorbing concentrations of ghrelin peptide, or by use of ghrelin gene knockout mice. Concentrations of ghrelin-like peptide, detected by enzyme-linked immunosorbent assay in extracts of hypothalamus, were 1% of gastric concentrations. Ghrelin receptor-expressing neurons had no adjacent ghrelin immunoreactive terminals. It is concluded that there are insignificant amounts of authentic ghrelin in neurons in the mouse or rat CNS and that ghrelin receptor-expressing neurons do not receive synaptic inputs from ghrelin-immunoreactive nerve terminals in these species.
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Affiliation(s)
- J B Furness
- Department of Anatomy and Cell Biology, University of Melbourne, Parkville, Victoria 3010, Australia.
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Abe K, Abgrall N, Ajima Y, Aihara H, Albert JB, Andreopoulos C, Andrieu B, Aoki S, Araoka O, Argyriades J, Ariga A, Ariga T, Assylbekov S, Autiero D, Badertscher A, Barbi M, Barker GJ, Barr G, Bass M, Bay F, Bentham S, Berardi V, Berger BE, Bertram I, Besnier M, Beucher J, Beznosko D, Bhadra S, Blaszczyk FDMM, Blondel A, Bojechko C, Bouchez J, Boyd SB, Bravar A, Bronner C, Brook-Roberge DG, Buchanan N, Budd H, Calvet D, Cartwright SL, Carver A, Castillo R, Catanesi MG, Cazes A, Cervera A, Chavez C, Choi S, Christodoulou G, Coleman J, Coleman W, Collazuol G, Connolly K, Curioni A, Dabrowska A, Danko I, Das R, Davies GS, Davis S, Day M, De Rosa G, de André JPAM, de Perio P, Delbart A, Densham C, Di Lodovico F, Di Luise S, Dinh Tran P, Dobson J, Dore U, Drapier O, Dufour F, Dumarchez J, Dytman S, Dziewiecki M, Dziomba M, Emery S, Ereditato A, Escudero L, Esposito LS, Fechner M, Ferrero A, Finch AJ, Frank E, Fujii Y, Fukuda Y, Galymov V, Gannaway FC, Gaudin A, Gendotti A, George MA, Giffin S, Giganti C, Gilje K, Golan T, Goldhaber M, Gomez-Cadenas JJ, Gonin M, Grant N, Grant A, Gumplinger P, Guzowski P, Haesler A, Haigh MD, Hamano K, Hansen C, Hansen D, Hara T, Harrison PF, Hartfiel B, Hartz M, Haruyama T, Hasegawa T, Hastings NC, Hastings S, Hatzikoutelis A, Hayashi K, Hayato Y, Hearty C, Helmer RL, Henderson R, Higashi N, Hignight J, Hirose E, Holeczek J, Horikawa S, Hyndman A, Ichikawa AK, Ieki K, Ieva M, Iida M, Ikeda M, Ilic J, Imber J, Ishida T, Ishihara C, Ishii T, Ives SJ, Iwasaki M, Iyogi K, Izmaylov A, Jamieson B, Johnson RA, Joo KK, Jover-Manas GV, Jung CK, Kaji H, Kajita T, Kakuno H, Kameda J, Kaneyuki K, Karlen D, Kasami K, Kato I, Kearns E, Khabibullin M, Khanam F, Khotjantsev A, Kielczewska D, Kikawa T, Kim J, Kim JY, Kim SB, Kimura N, Kirby B, Kisiel J, Kitching P, Kobayashi T, Kogan G, Koike S, Konaka A, Kormos LL, Korzenev A, Koseki K, Koshio Y, Kouzuma Y, Kowalik K, Kravtsov V, Kreslo I, Kropp W, Kubo H, Kudenko Y, Kulkarni N, Kurjata R, Kutter T, Lagoda J, Laihem K, Laveder M, Lee KP, Le PT, Levy JM, Licciardi C, Lim IT, Lindner T, Litchfield RP, Litos M, Longhin A, Lopez GD, Loverre PF, Ludovici L, Lux T, Macaire M, Mahn K, Makida Y, Malek M, Manly S, Marchionni A, Marino AD, Marteau J, Martin JF, Maruyama T, Maryon T, Marzec J, Masliah P, Mathie EL, Matsumura C, Matsuoka K, Matveev V, Mavrokoridis K, Mazzucato E, McCauley N, McFarland KS, McGrew C, McLachlan T, Messina M, Metcalf W, Metelko C, Mezzetto M, Mijakowski P, Miller CA, Minamino A, Mineev O, Mine S, Missert AD, Mituka G, Miura M, Mizouchi K, Monfregola L, Moreau F, Morgan B, Moriyama S, Muir A, Murakami A, Murdoch M, Murphy S, Myslik J, Nakadaira T, Nakahata M, Nakai T, Nakajima K, Nakamoto T, Nakamura K, Nakayama S, Nakaya T, Naples D, Navin ML, Nelson B, Nicholls TC, Nishikawa K, Nishino H, Nowak JA, Noy M, Obayashi Y, Ogitsu T, Ohhata H, Okamura T, Okumura K, Okusawa T, Oser SM, Otani M, Owen RA, Oyama Y, Ozaki T, Pac MY, Palladino V, Paolone V, Paul P, Payne D, Pearce GF, Perkin JD, Pettinacci V, Pierre F, Poplawska E, Popov B, Posiadala M, Poutissou JM, Poutissou R, Przewlocki P, Qian W, Raaf JL, Radicioni E, Ratoff PN, Raufer TM, Ravonel M, Raymond M, Retiere F, Robert A, Rodrigues PA, Rondio E, Roney JM, Rossi B, Roth S, Rubbia A, Ruterbories D, Sabouri S, Sacco R, Sakashita K, Sánchez F, Sarrat A, Sasaki K, Scholberg K, Schwehr J, Scott M, Scully DI, Seiya Y, Sekiguchi T, Sekiya H, Shibata M, Shimizu Y, Shiozawa M, Short S, Siyad M, Smith RJ, Smy M, Sobczyk JT, Sobel H, Sorel M, Stahl A, Stamoulis P, Steinmann J, Still B, Stone J, Strabel C, Sulak LR, Sulej R, Sutcliffe P, Suzuki A, Suzuki K, Suzuki S, Suzuki SY, Suzuki Y, Suzuki Y, Szeglowski T, Szeptycka M, Tacik R, Tada M, Takahashi S, Takeda A, Takenaga Y, Takeuchi Y, Tanaka K, Tanaka HA, Tanaka M, Tanaka MM, Tanimoto N, Tashiro K, Taylor I, Terashima A, Terhorst D, Terri R, Thompson LF, Thorley A, Toki W, Tomaru T, Totsuka Y, Touramanis C, Tsukamoto T, Tzanov M, Uchida Y, Ueno K, Vacheret A, Vagins M, Vasseur G, Wachala T, Walding JJ, Waldron AV, Walter CW, Wanderer PJ, Wang J, Ward MA, Ward GP, Wark D, Wascko MO, Weber A, Wendell R, West N, Whitehead LH, Wikström G, Wilkes RJ, Wilking MJ, Wilson JR, Wilson RJ, Wongjirad T, Yamada S, Yamada Y, Yamamoto A, Yamamoto K, Yamanoi Y, Yamaoka H, Yanagisawa C, Yano T, Yen S, Yershov N, Yokoyama M, Zalewska A, Zalipska J, Zambelli L, Zaremba K, Ziembicki M, Zimmerman ED, Zito M, Żmuda J. Indication of electron neutrino appearance from an accelerator-produced off-axis muon neutrino beam. Phys Rev Lett 2011; 107:041801. [PMID: 21866992 DOI: 10.1103/physrevlett.107.041801] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2011] [Indexed: 05/31/2023]
Abstract
The T2K experiment observes indications of ν(μ) → ν(e) appearance in data accumulated with 1.43×10(20) protons on target. Six events pass all selection criteria at the far detector. In a three-flavor neutrino oscillation scenario with |Δm(23)(2)| = 2.4×10(-3) eV(2), sin(2)2θ(23) = 1 and sin(2)2θ(13) = 0, the expected number of such events is 1.5±0.3(syst). Under this hypothesis, the probability to observe six or more candidate events is 7×10(-3), equivalent to 2.5σ significance. At 90% C.L., the data are consistent with 0.03(0.04) < sin(2)2θ(13) < 0.28(0.34) for δ(CP) = 0 and a normal (inverted) hierarchy.
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Affiliation(s)
- K Abe
- University of Tokyo, Institute for Cosmic Ray Research, Kamioka Observatory, Kamioka, Japan
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