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Nakamura M, Funakoshi T, Kataoka S, Horimatsu T, Nishikawa Y, Matsubara T, Mizukami T, Goto T, Tsuchihashi K, Baba E, Tsumura T, Mihara Y, Hamaguchi T, Muto M, Yanagita M. 348P Anti-VEGF inhibitors and renal safety in onco-nephrology consortium: Urinary protein/creatinine ratio (VERSiON UP study). Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.342] [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] Open
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Maeda Y, Kudo SE, Ogata N, Mori Y, Misawa M, Homma M, Nemoto T, Ogawa M, Sasanuma S, Sato Y, Kataoka S, Kouyama Y, Sakurai T, Igarashi K, Ogawa Y, Kato K, Ichimasa K, Nakamura H, Kudo T, Hayashi T, Wakamura K, Baba T, Inoue H, Ohtsuka K. Endocytoscopic intramucosal capillary network changes and crypt architecture abnormalities can predict relapse in patients with an ulcerative colitis Mayo endoscopic score of 1. Dig Endosc 2020; 32:1082-1091. [PMID: 32073691 DOI: 10.1111/den.13655] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 02/10/2020] [Accepted: 02/17/2020] [Indexed: 12/20/2022]
Abstract
OBJECTIVES Recent studies have suggested the necessity of therapeutic intervention for patients with ulcerative colitis at high risk of clinical relapse with a Mayo endoscopic score (MES) of 1. The aim of this retrospective cohort study was to demonstrate the impact of intramucosal capillary network changes and crypt architecture abnormalities to stratify the risk of relapse in patients with an MES of 1. METHODS All included patients had an MES of ≤1 and confirmed sustained clinical remission between October 2016 and April 2019. We classified patients with an MES of 1 as "intramucosal capillary/crypt (ICC)-active" or "ICC-inactive" using endocytoscopic evaluation. We followed patients until October 2019 or until relapse; the main outcome measure was the difference in clinical relapse-free rates between ICC-active and ICC-inactive patients with an MES of 1. RESULTS We included 224 patients and analyzed data for 218 (82 ICC-active and 54 ICC-active with an MES of 1 and 82 with an MES of 0). During follow-up, among the patients with an MES of 1, 30.5% (95% confidence interval 20.8-41.6; 25/82) of the patients relapsed in the ICC-active group and 5.6% (95% confidence interval 1.2-15.4; 3/54) of the patients relapsed in the ICC-inactive group. The ICC-inactive group had a significantly higher clinical relapse-free rate compared with the ICC-active group (P < 0.01). CONCLUSIONS In vivo intramucosal capillary network and crypt architecture patterns stratified the risk of clinical relapse in patients with an MES of 1 (UMIN 000032580; UMIN 000036359).
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Affiliation(s)
- Yasuharu Maeda
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan
| | - Shin-Ei Kudo
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan
| | - Noriyuki Ogata
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan
| | - Yuichi Mori
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan
| | - Masashi Misawa
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan
| | - Mayumi Homma
- Department of Diagnostic Pathology, Showa University Northern Yokohama Hospital, Kanagawa, Japan
| | - Tetsuo Nemoto
- Department of Diagnostic Pathology, Showa University Northern Yokohama Hospital, Kanagawa, Japan
| | - Masataka Ogawa
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan
| | - Seiko Sasanuma
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan
| | - Yuta Sato
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan
| | - Shinichi Kataoka
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan
| | - Yuta Kouyama
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan
| | - Tatsuya Sakurai
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan
| | - Kenta Igarashi
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan
| | - Yushi Ogawa
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan
| | - Kazuki Kato
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan
| | - Katsuro Ichimasa
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan
| | - Hiroki Nakamura
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan
| | - Toyoki Kudo
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan
| | - Takemasa Hayashi
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan
| | - Kunihiko Wakamura
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan
| | - Toshiyuki Baba
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan
| | - Haruhiro Inoue
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - Kazuo Ohtsuka
- Endoscopy Department, Tokyo Medical and Dental University, Tokyo, Japan
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Yagishita D, Yagishita Y, Kataoka S, Yazaki K, Kanai M, Higuchi S, Ejima K, Shoda M, Hagiwara N. Time interval from left ventricular stimulation to QRS onset is a predictor of mortality in patients with cardiac resynchronization therapy. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction
In our previous report, the time interval from left ventricular (LV) pacing to the earliest onset of QRS (S-QRS interval) has been found to be an independent predictor of mechanical response to cardiac resynchronization therapy (CRT). The S-QRS interval may indicate the conduction disturbance relevant to the localized tissue property such as scar or fibrotic lesion. Therefore, S-QRS interval longer than 37ms was associated with poor response to CRT, and proposed as suboptimal LV lead position. Then, we hypothesized that the longer S-QRS interval at the LV pacing site could be related to long term mortality and heart failure events in patients with CRT.
Methods
This retrospective study included 82 consecutive heart failure patients with sinus rhythm, reduced LV ejection fraction (≤35%), and a wide QRS complex (≥120ms), who undergone CRT implantation between 2012 January and 2017 December. Patients were divided into Short S-QRS group (<37ms, SS-QRS) and Long S-QRS group (≥37ms, LS-QRS) according to the previously reported optimal cut off value. A responder was defined as one with ≥15% reduction in LV end-systolic volume assessed by echocardiography at 6 months after CRT. The primary endpoint was total mortality, which included LV assist device implantation or heart transplantation. The secondary endpoints included the composite endpoint of total mortality or heart failure hospitalization.
Results
The study patients were divided into SS-QRS (N=43, age 65.9±13.2 years, 77% male) and LS-QRS (N=39, age 63.0±13.4, 85% male). In the electrocardiographic measurements, there were no significant differences in baseline QRS duration (162.4±30.3ms in SS-QRS vs. 154.5±31.6ms in LS-QRS, P=0.19) and LV local activation time assessed as Q-LV interval (118.3±34.3ms in SS-QRS vs. 115.3±32.0ms in LS-QRS, P=0.71). S-QRS interval was 25.9±5.3ms in SS-QRS and 51.5±13.7ms in LS-QRS (P<0.01), and the responder rate was significantly higher in SS-QRS compared with LS-QRS (79% vs. 29%, P<0.01). During mean follow up of 47.7±22.4 months, 24 patients (29%) reached to the primary endpoint, while the secondary endpoints were observed in 47 patients (57%). LS-QRS patients had significantly worse event-free survival for both primary and secondary endpoints (Figure). After the multivariate Cox regression analysis, LS-QRS (≥37ms) was an independent predictor of total mortality (HR=2.6, 95% CI: 1.11 to 6.12, P=0.03) and the secondary composite events (HR=2.4, 95% CI: 1.31 to 4.33, P<0.01).
Conclusion
The S-QRS interval longer than 37ms, which may reflect the conduction disturbance relevant to the scar or fibrotic lesion at the LV pacing site, was a significant predictor of the total mortality and heart failure hospitalization. These findings have implications for the optimal LV lead placement in patients with CRT device.
Clinical outcomes according to S-QRS
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- D Yagishita
- Tokyo Women's Medical University, Department of Cardiology, Tokyo, Japan
| | - Y Yagishita
- Tokyo Women's Medical University, Department of Cardiology, Tokyo, Japan
| | - S Kataoka
- Tokyo Women's Medical University, Department of Cardiology, Tokyo, Japan
| | - K Yazaki
- Tokyo Women's Medical University, Department of Cardiology, Tokyo, Japan
| | - M Kanai
- Tokyo Women's Medical University, Department of Cardiology, Tokyo, Japan
| | - S Higuchi
- Tokyo Women's Medical University, Department of Cardiology, Tokyo, Japan
| | - K Ejima
- Tokyo Women's Medical University, Department of Cardiology, Tokyo, Japan
| | - M Shoda
- Tokyo Women's Medical University, Department of Cardiology, Tokyo, Japan
| | - N Hagiwara
- Tokyo Women's Medical University, Department of Cardiology, Tokyo, Japan
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Yazaki K, Ejima K, Kanai M, Kataoka S, Higuchi S, Yagishita D, Shoda M, Hagiwara N. P450The difference in the prognosis among three categories of the post-procedural left ventricular ejection fraction in patients undergoing atrial fibrillation ablation. Europace 2020. [DOI: 10.1093/europace/euaa162.124] [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: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
None
Background
Atrial fibrillation (AF) ablation has been known to contribute to a good prognosis in heart failure patients and improve their systolic function. However, the impact of the post-procedural systolic function on the prognosis in them remains unclear.
Purpose
To investigate the impact of the left ventricular ejection fraction (LVEF) following AF ablation in patients with systolic dysfunction.
Methods
Out of 1078 consecutive patients who underwent AF ablation including extensive pulmonary vein and superior vena cava isolation, 170 with an impaired pre-procedural LVEF (< 50%) were evaluated. They experienced at least one echocardiographic follow-up within one year after the index procedure. The primary outcome was the composite of all-cause death or heart failure hospitalisations (HFHs). In addition, we categorised the patients into three groups according to the post-procedural LVEF within one year to evaluate the outcome: reduced LVEF (rEF, LVEF < 40%), mid-range EF (mrEF, 40% ≤ LVEF < 50%) and preserved LVEF (pEF, LVEF > 50%).
Results
After the index procedure, the patients’ LVEF improved with an average increase of 8%, and the post-procedural LVEF consisted of an rEF in 27 (16%), mrEF in 41 (24%), and pEF in 102 (60%) patients. During a median follow-up of 31 months, a total of 22 (13%) patients experienced the composite outcome, including 18 (11%) HFHs and 10 (6%) all-cause deaths (5 with cardiac issues, 2 any malignancies, and 3 other issues). In the Kaplan-Meier analysis using a Bonferroni correction, there was a significant difference in achieving the outcome between the rEF and mrEF, and rEF and pEF, but not between the mrEF and pEF groups (Figure). In a univariate analysis, the hazard ratio of the outcome was shown as follows: an age ≥ 65 years (hazard ratio, HR: 3.4 [95% confidence interval, CI: 1.4–8.5], p = 0.006), history of HFHs for AF (HR: 1.7 [95%CI: 0.7–4.0], p = 0.25), known underlying heart disease (HR: 1.9 [95%CI: 0.8–1.2], p = 0.13), pre-procedural LVEF < 40% (HR: 3.1 [95%CI: 1.3–7.5], p = 0.009), atrial tachyarrhythmia recurrence (HR: 3.0 [95%CI: 1.2–7.8], p = 0.01), and the post-procedural LVEF category (mrEF and rEF, compared with pEF) (HR: 2.0 [95%CI: 0.4–7.7], p = 0.34; and HR: 8.6 [95%CI: 2.7–37.5], p < 0.0001). Furthermore, in a multivariate analysis, patients with a rEF was the sole independent predictor of the composite outcome after adjusting for confounders including an age≥65 years and pre-procedural LVEF < 40% (HR: 12.0 [95%CI: 3.9–40.0], p < 0.0001), whereas those with a mrEF was not (HR: 1.8 [95%CI: 0.4–7.3], p = 0.42), as compared to those with a pEF.
Conclusions
Patients with a mrEF had a comparable prognosis to those with a pEF in a relatively long follow-up, while those with a rEF had the poorest outcome of the three categories, regardless of the pre-procedural LVEF severity.
Abstract Figure. The difference in the rate of outcome
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Affiliation(s)
- K Yazaki
- Tokyo Women"s Medical University, Tokyo, Japan
| | - K Ejima
- Tokyo Womens Medical University, 2.Clinical Research Division for Heart Rhythm Management, Tokyo, Japan
| | - M Kanai
- Tokyo Women"s Medical University, Tokyo, Japan
| | - S Kataoka
- Tokyo Women"s Medical University, Tokyo, Japan
| | - S Higuchi
- Tokyo Women"s Medical University, Tokyo, Japan
| | - D Yagishita
- Tokyo Women"s Medical University, Tokyo, Japan
| | - M Shoda
- Tokyo Womens Medical University, 2.Clinical Research Division for Heart Rhythm Management, Tokyo, Japan
| | - N Hagiwara
- Tokyo Women"s Medical University, Tokyo, Japan
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Shikayama T, Fujita-Yoshigaki J, Sago-Ito M, Nakamura-Kiyama M, Naniwa M, Hitomi S, Ujihara I, Kataoka S, Yada N, Ariyoshi W, Usui M, Nakashima K, Ono K. Hematogenous apoptotic mechanism in salivary glands in chronic periodontitis. Arch Oral Biol 2020; 117:104775. [PMID: 32512258 DOI: 10.1016/j.archoralbio.2020.104775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 05/06/2020] [Accepted: 05/15/2020] [Indexed: 11/29/2022]
Abstract
OBJECTIVE The aim of the study is to investigate the apoptotic mechanism in salivary glands in the rat experimental periodontitis model. DESIGN A rat periodontitis model was prepared by using a ligature around the second upper molar. In the salivary (parotid and submandibular) glands and blood samples, putative apoptotic factors and pathway molecules were investigated in vivo and in vitro. RESULTS Four weeks of ligation (chronic periodontitis) demonstrated significant apoptotic atrophy of the salivary gland, but one week of ligation (initial periodontitis) did not. In the blood plasma, tumor necrosis factor-α (TNF-α) was increased in the periodontitis model, but interleukin-1β and -6 were not. TNF-α receptor type 1, which has an intracellular apoptotic pathway, was expressed in the salivary glands of rats. Western blot analysis of cultured rat primary salivary gland cells demonstrated that TNF-α induced cleavage of poly (ADP-ribose) polymerase (PARP) and caspase-3 in a dose-dependent manner, indicating apoptosis induction. Additionally, we found increment of circulating lymphocytes in the model. Expression of mRNA and immunoreactive cells for the B lymphocyte marker CD19 were increased in the salivary gland in the model. Western blotting showed that coculture with extracted B cells from the periodontitis model increased cleaved PARP in salivary gland cells. CONCLUSIONS Chronic periodontitis status leads to an increase in circulating TNF-α and B lymphocyte infiltration, resulting in apoptotic atrophy of the salivary gland as a periodontitis-induced systemic response.
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Affiliation(s)
- T Shikayama
- Division of Physiology, Kyushu Dental University, 2-6-1 Manazuru, Kokurakitaku, Kitakyushu, Fukuoka, 803-8580, Japan; Division of Periodontology, Kyushu Dental University, 2-6-1 Manazuru, Kokurakitaku, Kitakyushu, Fukuoka 803-8580, Japan.
| | - J Fujita-Yoshigaki
- Department of Physiology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-nishi, Matsudo, Chiba 271-8587, Japan.
| | - M Sago-Ito
- Division of Orofacial Functions and Orthodontics, Kyushu Dental University, 2-6-1 Manazuru, Kokurakitaku, Kitakyushu, Fukuoka 803-8580, Japan.
| | - M Nakamura-Kiyama
- Division of Physiology, Kyushu Dental University, 2-6-1 Manazuru, Kokurakitaku, Kitakyushu, Fukuoka, 803-8580, Japan; Division of Periodontology, Kyushu Dental University, 2-6-1 Manazuru, Kokurakitaku, Kitakyushu, Fukuoka 803-8580, Japan.
| | - M Naniwa
- Division of Physiology, Kyushu Dental University, 2-6-1 Manazuru, Kokurakitaku, Kitakyushu, Fukuoka, 803-8580, Japan; Division of Oral Health Sciences, Kyushu Dental University, 2-6-1 Manazuru, Kokurakitaku, Kitakyushu, Fukuoka 803-8580, Japan.
| | - S Hitomi
- Division of Physiology, Kyushu Dental University, 2-6-1 Manazuru, Kokurakitaku, Kitakyushu, Fukuoka, 803-8580, Japan.
| | - I Ujihara
- Division of Physiology, Kyushu Dental University, 2-6-1 Manazuru, Kokurakitaku, Kitakyushu, Fukuoka, 803-8580, Japan.
| | - S Kataoka
- Division of Anatomy, Kyushu Dental University, 2-6-1 Manazuru, Kokurakitaku, Kitakyushu, Fukuoka 803-8580, Japan.
| | - N Yada
- Division of Oral Pathology, Kyushu Dental University, 2-6-1 Manazuru, Kokurakitaku, Kitakyushu, Fukuoka 803-8580, Japan.
| | - W Ariyoshi
- Division of Infections and Molecular Biology, Kyushu Dental University, 2-6-1 Manazuru, Kokurakitaku, Kitakyushu, Fukuoka 803-8580, Japan.
| | - M Usui
- Division of Periodontology, Kyushu Dental University, 2-6-1 Manazuru, Kokurakitaku, Kitakyushu, Fukuoka 803-8580, Japan.
| | - K Nakashima
- Division of Periodontology, Kyushu Dental University, 2-6-1 Manazuru, Kokurakitaku, Kitakyushu, Fukuoka 803-8580, Japan.
| | - K Ono
- Division of Physiology, Kyushu Dental University, 2-6-1 Manazuru, Kokurakitaku, Kitakyushu, Fukuoka, 803-8580, Japan.
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Kataoka S, Kudo SE, Misawa M, Nakamura H, Takeda K, Toyoshima N, Mori Y, Ogata N, Kudo T, Hisayuki T, Hayashi T, Wakamura K, Baba T, Ishida F. Endocytoscopy with NBI has the potential to correctly diagnose diminutive colorectal polyps that are difficult to diagnose using conventional NBI. Endosc Int Open 2020; 8:E360-E367. [PMID: 32118108 PMCID: PMC7035040 DOI: 10.1055/a-1068-9228] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 10/14/2019] [Indexed: 02/07/2023] Open
Abstract
Background and study aims Real-time diagnosis of colorectal polyps is needed to prevent unnecessary resection of benign polyps. The vessels in hyperplastic polyps sometimes mimic the characteristic meshed capillary network of neoplastic lesions on non-magnified narrow-band imaging (NBI). Endocytoscopy in conjunction with NBI (EC-NBI) enables more detailed vessel observation. The current study evaluated whether EC-NBI can accurately diagnose small colorectal lesions with visible vessels on non-magnified NBI. Patients and methods This retrospective study was conducted from January to December 2016. During colonoscopy, lesion images were obtained using NBI and EC-NBI. On EC-NBI, lesions were classified as having "clear," "unclear," or "invisible" blood vessel margins. All specimens were resected and pathologically examined, and the association between vessel margin findings and pathological diagnosis was assessed. The lesion surface to vessel depth was measured in clear, unclear, and invisible lesions. Results Among 114 adenomas, 108 were clear, while six were unclear. Among 36 hyperplastic polyps, eight were clear, while 28 were unclear. A micro-network (MN) pattern was seen in 106 of 114 adenomas, and four of 36 hyperplastic polyps. The sensitivity, specificity, correct diagnostic rate, and positive and negative predictive values of clear blood vessel margins or a MN pattern as an adenoma index were 98.2 %, 69.4 %, 91.3 %, 91.1 %, and 92.6 %, respectively. EC-NBI correctly diagnosed 69.4 % (25/36) of hyperplastic polyps. The lesion surface-blood vessel distance was greater in unclear versus clear lesions ( P < 0.001), and invisible versus unclear lesions ( P < 0.001). Conclusions EC-NBI may effectively differentiate hyperplastic polyps with visible vessels from adenomas. Blood vessel depth affects visibility.
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Affiliation(s)
- Shinichi Kataoka
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Shin-ei Kudo
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan,Corresponding author Shin-ei Kudo, MD, PhD Digestive Disease CenterShowa UniversityNorthern Yokohama Hospital35-1 Chigasaki-chuoTsuzuki, Yokohama 224-8503Japan+81-45-949-7263
| | - Masashi Misawa
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Hiroki Nakamura
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Kenichi Takeda
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Naoya Toyoshima
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Yuichi Mori
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Noriyuki Ogata
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Toyoki Kudo
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Tomokazu Hisayuki
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Takemasa Hayashi
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Kunihiko Wakamura
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Toshiyuki Baba
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Fumio Ishida
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
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Kataoka S, Takaishi M, Nakajima K, Sano S. 369 Direct anti-psoriatic effect of Apremilast on epidermal keratinocytes. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.07.371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Nakajima K, Kataoka S, Sano S. LB1047 Stat3 activation in epidermal keratinocytes induces Langerhans cell activation to form an essential circuit for psoriasis via IL-23 production. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Joujima T, Oda M, Sasaguri M, Habu M, Kataoka S, Miyamura Y, Wakasugi-Sato N, Matsumoto-Takeda S, Takahashi O, Kokuryo S, Sago T, Yoshiga D, Tanaka T, Morimoto Y. Evaluation of velopharyngeal function using high-speed cine-magnetic resonance imaging based on T2-weighted sequences: a preliminary study. Int J Oral Maxillofac Surg 2019; 49:432-441. [PMID: 31451304 DOI: 10.1016/j.ijom.2019.08.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 06/06/2019] [Accepted: 08/07/2019] [Indexed: 10/26/2022]
Abstract
The objective was to introduce a new technique for visualizing the three-dimensional (3D) movements of velopharyngeal-related muscles using high-speed cine-magnetic resonance imaging (MRI) based on T2-weighted sequences. The evaluation of phonation- and water swallowing-related events was performed in 11 healthy subjects. Specifically, whether cine-MRI could precisely visualize normal velopharyngeal function during these two events was examined. The 3D movements of the soft palate, superior pharyngeal constrictor muscles, and levator veli palatini muscles were visualized in all 11 subjects. A noteworthy finding was that the magnetic resonance signals of the superior constrictor pharyngeal muscles and the levator veli palatini muscles were significantly higher during phonation and during water swallowing than at rest. This initial study suggests that the 3D movements of velopharyngeal-related muscles can be successfully and precisely visualized without side effects. The magnetic resonance signal changes seen in the superior pharyngeal constrictor and levator veli palatini muscles using the technique described here should be useful to develop better methods of evaluation of velopharyngeal function.
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Affiliation(s)
- T Joujima
- Division of Oral and Maxillofacial Radiology, Kyushu Dental University, Kitakyushu, Japan
| | - M Oda
- Division of Oral and Maxillofacial Radiology, Kyushu Dental University, Kitakyushu, Japan
| | - M Sasaguri
- Division of Maxillofacial Surgery, Kyushu Dental University, Kitakyushu, Japan
| | - M Habu
- Division of Maxillofacial Surgery, Kyushu Dental University, Kitakyushu, Japan
| | - S Kataoka
- Division of Anatomy, Kyushu Dental University, Kitakyushu, Japan
| | - Y Miyamura
- Division of Oral and Maxillofacial Radiology, Kyushu Dental University, Kitakyushu, Japan
| | - N Wakasugi-Sato
- Division of Oral and Maxillofacial Radiology, Kyushu Dental University, Kitakyushu, Japan
| | - S Matsumoto-Takeda
- Division of Oral and Maxillofacial Radiology, Kyushu Dental University, Kitakyushu, Japan
| | - O Takahashi
- Division of Maxillofacial Surgery, Kyushu Dental University, Kitakyushu, Japan
| | - S Kokuryo
- Division of Oral Medicine, Kyushu Dental University, Kitakyushu, Japan
| | - T Sago
- Division of Dental Anaesthesiology, Kyushu Dental University, Kitakyushu, Japan
| | - D Yoshiga
- Division of Oral Medicine, Kyushu Dental University, Kitakyushu, Japan
| | - T Tanaka
- Division of Oral and Maxillofacial Radiology, Kyushu Dental University, Kitakyushu, Japan
| | - Y Morimoto
- Division of Oral and Maxillofacial Radiology, Kyushu Dental University, Kitakyushu, Japan.
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Ohko K, Nakajima K, Kataoka S, Takaishi M, Sano S. 076 IL-36 signaling is essential for psoriatic inflammation through the augmentation of innate immune responses. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.152] [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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11
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Mori Y, Kudo SE, Misawa M, Saito Y, Ikematsu H, Hotta K, Ohtsuka K, Urushibara F, Kataoka S, Ogawa Y, Maeda Y, Takeda K, Nakamura H, Ichimasa K, Kudo T, Hayashi T, Wakamura K, Ishida F, Inoue H, Itoh H, Oda M, Mori K. Real-Time Use of Artificial Intelligence in Identification of Diminutive Polyps During Colonoscopy: A Prospective Study. Ann Intern Med 2018; 169:357-366. [PMID: 30105375 DOI: 10.7326/m18-0249] [Citation(s) in RCA: 300] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Computer-aided diagnosis (CAD) for colonoscopy may help endoscopists distinguish neoplastic polyps (adenomas) requiring resection from nonneoplastic polyps not requiring resection, potentially reducing cost. OBJECTIVE To evaluate the performance of real-time CAD with endocytoscopes (×520 ultramagnifying colonoscopes providing microvascular and cellular visualization of colorectal polyps after application of the narrow-band imaging [NBI] and methylene blue staining modes, respectively). DESIGN Single-group, open-label, prospective study. (UMIN [University hospital Medical Information Network] Clinical Trial Registry: UMIN000027360). SETTING University hospital. PARTICIPANTS 791 consecutive patients undergoing colonoscopy and 23 endoscopists. INTERVENTION Real-time use of CAD during colonoscopy. MEASUREMENTS CAD-predicted pathology (neoplastic or nonneoplastic) of detected diminutive polyps (≤5 mm) on the basis of real-time outputs compared with pathologic diagnosis of the resected specimen (gold standard). The primary end point was whether CAD with the stained mode produced a negative predictive value (NPV) of 90% or greater for identifying diminutive rectosigmoid adenomas, the threshold required to "diagnose-and-leave" nonneoplastic polyps. Best- and worst-case scenarios assumed that polyps lacking either CAD diagnosis or pathology were true- or false-positive or true- or false-negative, respectively. RESULTS Overall, 466 diminutive (including 250 rectosigmoid) polyps from 325 patients were assessed by CAD, with a pathologic prediction rate of 98.1% (457 of 466). The NPVs of CAD for diminutive rectosigmoid adenomas were 96.4% (95% CI, 91.8% to 98.8%) (best-case scenario) and 93.7% (CI, 88.3% to 97.1%) (worst-case scenario) with stained mode and 96.5% (CI, 92.1% to 98.9%) (best-case scenario) and 95.2% (CI, 90.3% to 98.0%) (worst-case scenario) with NBI. LIMITATION Two thirds of the colonoscopies were conducted by experts who had each experienced more than 200 endocytoscopies; 186 polyps not assessed by CAD were excluded. CONCLUSION Real-time CAD can achieve the performance level required for a diagnose-and-leave strategy for diminutive, nonneoplastic rectosigmoid polyps. PRIMARY FUNDING SOURCE Japan Society for the Promotion of Science.
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Affiliation(s)
- Yuichi Mori
- Showa University Northern Yokohama Hospital, Yokohama, Japan (Y.M., S.K., M.M., F.U., S.K., Y.O., Y.M., K.T., H.N., K.I., T.K., T.H., K.W., F.I.)
| | - Shin-Ei Kudo
- Showa University Northern Yokohama Hospital, Yokohama, Japan (Y.M., S.K., M.M., F.U., S.K., Y.O., Y.M., K.T., H.N., K.I., T.K., T.H., K.W., F.I.)
| | - Masashi Misawa
- Showa University Northern Yokohama Hospital, Yokohama, Japan (Y.M., S.K., M.M., F.U., S.K., Y.O., Y.M., K.T., H.N., K.I., T.K., T.H., K.W., F.I.)
| | - Yutaka Saito
- National Cancer Center Hospital, Tokyo, Japan (Y.S.)
| | | | | | - Kazuo Ohtsuka
- Tokyo Medical and Dental University, Tokyo, Japan (K.O.)
| | - Fumihiko Urushibara
- Showa University Northern Yokohama Hospital, Yokohama, Japan (Y.M., S.K., M.M., F.U., S.K., Y.O., Y.M., K.T., H.N., K.I., T.K., T.H., K.W., F.I.)
| | - Shinichi Kataoka
- Showa University Northern Yokohama Hospital, Yokohama, Japan (Y.M., S.K., M.M., F.U., S.K., Y.O., Y.M., K.T., H.N., K.I., T.K., T.H., K.W., F.I.)
| | - Yushi Ogawa
- Showa University Northern Yokohama Hospital, Yokohama, Japan (Y.M., S.K., M.M., F.U., S.K., Y.O., Y.M., K.T., H.N., K.I., T.K., T.H., K.W., F.I.)
| | - Yasuharu Maeda
- Showa University Northern Yokohama Hospital, Yokohama, Japan (Y.M., S.K., M.M., F.U., S.K., Y.O., Y.M., K.T., H.N., K.I., T.K., T.H., K.W., F.I.)
| | - Kenichi Takeda
- Showa University Northern Yokohama Hospital, Yokohama, Japan (Y.M., S.K., M.M., F.U., S.K., Y.O., Y.M., K.T., H.N., K.I., T.K., T.H., K.W., F.I.)
| | - Hiroki Nakamura
- Showa University Northern Yokohama Hospital, Yokohama, Japan (Y.M., S.K., M.M., F.U., S.K., Y.O., Y.M., K.T., H.N., K.I., T.K., T.H., K.W., F.I.)
| | - Katsuro Ichimasa
- Showa University Northern Yokohama Hospital, Yokohama, Japan (Y.M., S.K., M.M., F.U., S.K., Y.O., Y.M., K.T., H.N., K.I., T.K., T.H., K.W., F.I.)
| | - Toyoki Kudo
- Showa University Northern Yokohama Hospital, Yokohama, Japan (Y.M., S.K., M.M., F.U., S.K., Y.O., Y.M., K.T., H.N., K.I., T.K., T.H., K.W., F.I.)
| | - Takemasa Hayashi
- Showa University Northern Yokohama Hospital, Yokohama, Japan (Y.M., S.K., M.M., F.U., S.K., Y.O., Y.M., K.T., H.N., K.I., T.K., T.H., K.W., F.I.)
| | - Kunihiko Wakamura
- Showa University Northern Yokohama Hospital, Yokohama, Japan (Y.M., S.K., M.M., F.U., S.K., Y.O., Y.M., K.T., H.N., K.I., T.K., T.H., K.W., F.I.)
| | - Fumio Ishida
- Showa University Northern Yokohama Hospital, Yokohama, Japan (Y.M., S.K., M.M., F.U., S.K., Y.O., Y.M., K.T., H.N., K.I., T.K., T.H., K.W., F.I.)
| | - Haruhiro Inoue
- Showa University Koto-Toyosu Hospital, Tokyo, Japan (H.I.)
| | - Hayato Itoh
- Nagoya University, Nagoya, Japan (H.I., M.O., K.M.)
| | - Masahiro Oda
- Nagoya University, Nagoya, Japan (H.I., M.O., K.M.)
| | - Kensaku Mori
- Nagoya University, Nagoya, Japan (H.I., M.O., K.M.)
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12
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Misawa M, Kudo SE, Mori Y, Cho T, Kataoka S, Yamauchi A, Ogawa Y, Maeda Y, Takeda K, Ichimasa K, Nakamura H, Yagawa Y, Toyoshima N, Ogata N, Kudo T, Hisayuki T, Hayashi T, Wakamura K, Baba T, Ishida F, Itoh H, Roth H, Oda M, Mori K. Artificial Intelligence-Assisted Polyp Detection for Colonoscopy: Initial Experience. Gastroenterology 2018; 154:2027-2029.e3. [PMID: 29653147 DOI: 10.1053/j.gastro.2018.04.003] [Citation(s) in RCA: 229] [Impact Index Per Article: 38.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 03/25/2018] [Accepted: 04/03/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Masashi Misawa
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan.
| | - Shin-Ei Kudo
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan
| | - Yuichi Mori
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan
| | - Tomonari Cho
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan
| | - Shinichi Kataoka
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan
| | - Akihiro Yamauchi
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan
| | - Yushi Ogawa
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan
| | - Yasuharu Maeda
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan
| | - Kenichi Takeda
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan
| | - Katsuro Ichimasa
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan
| | - Hiroki Nakamura
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan
| | - Yusuke Yagawa
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan
| | - Naoya Toyoshima
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan
| | - Noriyuki Ogata
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan
| | - Toyoki Kudo
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan
| | - Tomokazu Hisayuki
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan
| | - Takemasa Hayashi
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan
| | - Kunihiko Wakamura
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan
| | - Toshiyuki Baba
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan
| | - Fumio Ishida
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan
| | - Hayato Itoh
- Graduate School of Informatics, Nagoya University, Nagoya, Japan
| | - Holger Roth
- Graduate School of Informatics, Nagoya University, Nagoya, Japan
| | - Masahiro Oda
- Graduate School of Informatics, Nagoya University, Nagoya, Japan
| | - Kensaku Mori
- Graduate School of Informatics, Nagoya University, Nagoya, Japan
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13
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Takeichi T, Kobayashi A, Ogawa E, Okuno Y, Kataoka S, Kono M, Sugiura K, Okuyama R, Akiyama M. Autosomal dominant familial generalized pustular psoriasis caused by a CARD14
mutation. Br J Dermatol 2017; 177:e133-e135. [DOI: 10.1111/bjd.15442] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- T. Takeichi
- Department of Dermatology; Nagoya University Graduate School of Medicine; 65 Tsurumai-cho Showa-ku Nagoya 466-8550 Japan
| | - A. Kobayashi
- Department of Pediatrics; Nagoya University Graduate School of Medicine; 65 Tsurumai-cho Showa-ku Nagoya 466-8550 Japan
| | - E. Ogawa
- Department of Pediatrics; Nagoya University Graduate School of Medicine; 65 Tsurumai-cho Showa-ku Nagoya 466-8550 Japan
| | - Y. Okuno
- Department of Dermatology; Shinshu University; Graduate School of Medicine; Matsumoto Japan
- Center for Advanced Medicine and Clinical Research; Nagoya University Hospital; Nagoya Japan
| | - S. Kataoka
- Center for Advanced Medicine and Clinical Research; Nagoya University Hospital; Nagoya Japan
| | - M. Kono
- Department of Dermatology; Nagoya University Graduate School of Medicine; 65 Tsurumai-cho Showa-ku Nagoya 466-8550 Japan
| | - K. Sugiura
- Department of Dermatology; Fujita Health University School of Medicine; Toyoake Japan
| | - R. Okuyama
- Department of Pediatrics; Nagoya University Graduate School of Medicine; 65 Tsurumai-cho Showa-ku Nagoya 466-8550 Japan
| | - M. Akiyama
- Department of Dermatology; Nagoya University Graduate School of Medicine; 65 Tsurumai-cho Showa-ku Nagoya 466-8550 Japan
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14
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Ishimoto T, Kataoka S, Shiga T, Takaishi M, Sano S. 572 Intralesional blood, an easy-to-access tool for determination of diffusible mediators by skin lesions. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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15
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Suzuki K, Suzuki Y, Hama A, Muramatsu H, Nakatochi M, Gunji M, Ichikawa D, Hamada M, Taniguchi R, Kataoka S, Murakami N, Kojima D, Sekiya Y, Nishikawa E, Kawashima N, Narita A, Nishio N, Nakazawa Y, Iwafuchi H, Watanabe KI, Takahashi Y, Ito M, Kojima S, Kato S, Okuno Y. Recurrent MYB rearrangement in blastic plasmacytoid dendritic cell neoplasm. Leukemia 2017; 31:1629-1633. [PMID: 28344318 DOI: 10.1038/leu.2017.101] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- K Suzuki
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Y Suzuki
- Department of Pathology and Laboratory Medicine, Nagoya University Hospital, Nagoya, Japan
| | - A Hama
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - H Muramatsu
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - M Nakatochi
- Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Japan
| | - M Gunji
- Department of Pathology, Japanese Red Cross Nagoya First Hospital, Nagoya, Japan
| | - D Ichikawa
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - M Hamada
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - R Taniguchi
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - S Kataoka
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - N Murakami
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - D Kojima
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Y Sekiya
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - E Nishikawa
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - N Kawashima
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - A Narita
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - N Nishio
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Japan
| | - Y Nakazawa
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto, Japan
| | - H Iwafuchi
- Department of Pathology, Shizuoka Children's Hospital, Shizuoka, Japan
| | - K-I Watanabe
- Department of Hematology and Oncology, Shizuoka Children's Hospital, Shizuoka, Japan
| | - Y Takahashi
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - M Ito
- Department of Pathology, Japanese Red Cross Nagoya First Hospital, Nagoya, Japan
| | - S Kojima
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - S Kato
- Department of Pathology and Laboratory Medicine, Nagoya University Hospital, Nagoya, Japan
| | - Y Okuno
- Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Japan
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16
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Nakamura H, Kudo SE, Misawa M, Kataoka S, Wakamura K, Hayashi T, Kudo T, Mori Y, Takeda K, Ichimasa K, Miyachi H, Katagiri A, Ishida F, Inoue H. Evaluation of microvascular findings of deeply invasive colorectal cancer by endocytoscopy with narrow-band imaging. Endosc Int Open 2016; 4:E1280-E1285. [PMID: 27995189 PMCID: PMC5161126 DOI: 10.1055/s-0042-117629] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Accepted: 09/13/2016] [Indexed: 12/19/2022] Open
Abstract
UNLABELLED Background and study aims: Magnifying narrow-band imaging (NBI) is useful for examination of colorectal lesions, and endocytoscopy (EC) allows diagnostic evaluation of structural atypia, nuclear atypia, and vascular structures of colorectal tumors. The aim of this study was to examine surface microvessels in deep invasive colorectal cancer using EC with a new NBI video processor system. Patients and methods: We retrospectively assessed 132 colorectal neoplastic lesions: 81 adenomas, 18 intramucosal cancers, 4 submucosal slightly invasive cancers, and 29 submucosal deep invasive cancers. Detailed vascular findings commonly seen in submucosal deep invasive carcinomas included > 2-fold vasodilatation seen in adenomas, abnormal tortuosity and branching, loss of the micro-network pattern, caliber change in > 2 places in a single blood vessel, and blood vessels not visible in a line because they appear like a string of beads (beaded sign). Results: Univariate analysis revealed 4 vascular findings that were strongly predictive of submucosal deep invasion: vasodilatation (odds ratio [OR] 9.31; 95 % confidence interval [CI] 3.57 - 24.30), loss of the micro-network pattern (OR 61.60; 95 % CI 17.87 - 212.29), caliber change (OR 35.7; 95 % CI 9.16 - 139.14), and the beaded sign (OR 45.90; 95 % CI 5.50 - 382.73). Conclusions: Detailed assessment of ultra-magnified microvessels could improve the diagnostic performance for submucosal deep invasive cancer. STUDY REGISTRATION UMIN-CTR000014033.
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Affiliation(s)
- Hiroki Nakamura
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan ,Corresponding author Hiroki Nakamura Showa-University Northern Yokohama Hospital – Digestive Disease Center35-1,Chigasaki-chu-o TsudukiYokohama Kanagawa 2240032Japan+081090803598530459497738
| | - Shin-ei Kudo
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Masashi Misawa
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Shinichi Kataoka
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Kunihiko Wakamura
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Takemasa Hayashi
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Toyoki Kudo
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Yuichi Mori
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Kenichi Takeda
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Katsuro Ichimasa
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Hideyuki Miyachi
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Atushi Katagiri
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Fumio Ishida
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Haruhiro Inoue
- Digestive Disease Center, Showa University, Koto-Toyosu Hospital, Tokyo, Japan
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17
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Mori Y, Kudo SE, Endo S, Maeda C, Mukai S, Maeda Y, Kataoka S, Takeda K, Ichimasa K, Miyachi H, Sawada N, Hidaka E, Ishida F. Morphology as a risk factor for the malignant potential of T2 colorectal cancer. Mol Clin Oncol 2016; 5:223-226. [PMID: 27588185 DOI: 10.3892/mco.2016.951] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [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: 01/12/2016] [Accepted: 05/30/2016] [Indexed: 11/05/2022] Open
Abstract
Currently, depressed type T1 colorectal cancer is often detected and its malignant potential is being revealed. However, few reports have focused on the morphology of T2 colorectal cancer types. The aim of the present retrospective study was to clarify the characteristics of colorectal T2 cancer types derived from depressed type T1 cancer. The present study included 195 patients with colorectal T2 cancer surgically resected at a referral hospital between April 2001 and April 2009. A total of 48 lesions (25%) with lymph node metastasis and 4 (2%) with distant metastasis were found. The lesions were classified by their form during endoscopy into four categories: Group A, depressed type (the periphery consists of normal mucosa); group B, laterally spreading type; group C, protruded type; group D, ulcerative type (the periphery consists of neoplastic mucosa). Tumor size, lymphatic and venous involvement, lymph node metastasis, and distant metastasis were compared between the four categories. The distribution of patients were as follows: Group A, 73 (37%), group B, 26 (13%), group C, 24 (12%) and group D, 72 (37%). The average tumor size for each category was 23, 51, 30 and 36 mm for groups A, B, C and D, respectively. The number of positive findings for lymphatic involvement, venous involvement, lymph node metastasis and distant metastasis for each category were: Group A, 50 (69%), 54 (74%), 19 (26%) and 1 (1%); group B, 14 (54%), 12 (46%), 8 (31%) and 0 (0%); group C, 14 (58%), 8 (33%), 6 (25%) and 0 (0%); group D 35 (49%), 41 (57%), 16 (22%) and 3 (4%). Group A demonstrated a significantly smaller tumor size (P<0.01), and higher rates of lymphatic and venous involvement (P=0.0333 and P=0.0019, respectively). No significant differences were observed between categories with regards to nodal and distant metastases. Of the T2 cancer types, ~40% were the depressed type. Compared with the other forms, depressed type lesions exhibited a smaller tumor size, and higher rates of lymphatic and venous involvement, which suggested these lesions were of a more malignant nature.
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Affiliation(s)
- Yuichi Mori
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama 225-8503, Japan
| | - Shin-Ei Kudo
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama 225-8503, Japan
| | - Shungo Endo
- Department of Coloproctology, Aizu Medical Center, Fukushima Medical University, Aizuwakamatsu 965-0803, Japan
| | - Chiyo Maeda
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama 225-8503, Japan
| | - Shumpei Mukai
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama 225-8503, Japan
| | - Yasuharu Maeda
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama 225-8503, Japan
| | - Shinichi Kataoka
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama 225-8503, Japan
| | - Kenichi Takeda
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama 225-8503, Japan
| | - Katsuro Ichimasa
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama 225-8503, Japan
| | - Hideyuki Miyachi
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama 225-8503, Japan
| | - Naruhiko Sawada
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama 225-8503, Japan
| | - Eiji Hidaka
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama 225-8503, Japan
| | - Fumio Ishida
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama 225-8503, Japan
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18
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Misawa M, Kudo SE, Mori Y, Nakamura H, Kataoka S, Maeda Y, Kudo T, Hayashi T, Wakamura K, Miyachi H, Katagiri A, Baba T, Ishida F, Inoue H, Nimura Y, Mori K. Characterization of Colorectal Lesions Using a Computer-Aided Diagnostic System for Narrow-Band Imaging Endocytoscopy. Gastroenterology 2016; 150:1531-1532.e3. [PMID: 27072671 DOI: 10.1053/j.gastro.2016.04.004] [Citation(s) in RCA: 112] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Revised: 03/29/2016] [Accepted: 04/04/2016] [Indexed: 12/14/2022]
Affiliation(s)
- Masashi Misawa
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan.
| | - Shin-Ei Kudo
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Yuichi Mori
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Hiroki Nakamura
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Shinichi Kataoka
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Yasuharu Maeda
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Toyoki Kudo
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Takemasa Hayashi
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Kunihiko Wakamura
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Hideyuki Miyachi
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Atsushi Katagiri
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Toshiyuki Baba
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Fumio Ishida
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Haruhiro Inoue
- Digestive Disease Center, Showa University, Koto-Toyosu Hospital, Tokyo, Japan
| | - Yukitaka Nimura
- Information & Communications Headquarters, Nagoya University, Nagoya, Japan
| | - Kensaku Mori
- Information & Communications Headquarters, Nagoya University, Nagoya, Japan
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Ohko K, Nakajima K, Kataoka S, Sano S. 022 Psoriasis development is required for cooperative IL-36R signal in dendritic cells and keratinocyte. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.02.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Yamada T, Kawakami S, Yoshida Y, Kawamura H, Ohta S, Abe K, Hamada H, Dohi S, Ichizuka K, Takita H, Baba Y, Matsubara S, Mochizuki J, Unno N, Maegawa Y, Maeda M, Inubashiri E, Akutagawa N, Kubo T, Shirota T, Oda Y, Yamada T, Yamagishi E, Nakai A, Fuchi N, Masuzaki H, Urabe S, Kudo Y, Nomizo M, Sagawa N, Maeda T, Kamitomo M, Kawabata K, Kataoka S, Shiozaki A, Saito S, Sekizawa A, Minakami H. Influenza 2014–2015 among pregnant Japanese women: primiparous vs multiparous women. Eur J Clin Microbiol Infect Dis 2016; 35:665-71. [DOI: 10.1007/s10096-016-2585-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Accepted: 01/13/2016] [Indexed: 11/28/2022]
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Kudo SE, Misawa M, Wada Y, Nakamura H, Kataoka S, Maeda Y, Toyoshima N, Hayashi S, Kutsukawa M, Oikawa H, Mori Y, Ogata N, Kudo T, Hisayuki T, Hayashi T, Wakamura K, Miyachi H, Ishida F, Inoue H. Endocytoscopic microvasculature evaluation is a reliable new diagnostic method for colorectal lesions (with video). Gastrointest Endosc 2015; 82:912-23. [PMID: 26071058 DOI: 10.1016/j.gie.2015.04.039] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Accepted: 04/26/2015] [Indexed: 02/07/2023]
Abstract
BACKGROUND We previously reported on the efficacy of endocytoscopic classification (EC-C). However, the correlation of the endocytoscopic vascular (EC-V) pattern with diagnoses was unclear. OBJECTIVE To assess the diagnostic accuracy of the EC-V pattern for colorectal lesions. DESIGN Retrospective. SETTING A university hospital. PATIENTS Patients who underwent endocytoscopy between January 2010 and March 2013. INTERVENTION We evaluated 198 consecutive lesions according to the EC-V pattern (EC-V1, obscure surface microvessels; EC-V2, clearly observed surface microvessels of a uniform caliber and arrangement; and EC-V3, dilated surface microvessels of a nonhomogeneous caliber or arrangement). MAIN OUTCOME MEASUREMENTS The diagnostic accuracy for predicting hyperplastic polyps and invasive cancer were compared between the EC-V pattern and other modalities (narrow-band imaging, pit pattern, and EC-C). RESULTS The sensitivity, specificity, and accuracy of the EC-V1 pattern for diagnosing hyperplastic polyps were 95.5%, 99.4%, and 99.0%, respectively. The sensitivity, specificity, and accuracy of the EC-V3 pattern for diagnosing invasive cancer were 74.6%, 97.2%, and 88.6%, respectively. The diagnostic accuracy of the EC-V pattern for predicting hyperplastic polyps was comparable to the other modalities. For predicting invasive cancer, the EC-V pattern was comparable to narrow-band imaging and pit pattern, although EC-C was slightly more accurate (P = .04). In the substudy, the diagnosis time by using the EC-V pattern was shorter than that with the EC-C pattern (P < .001). LIMITATIONS A single-center, retrospective study. CONCLUSIONS The EC-V pattern saved more time than the EC-C pattern and had a diagnostic ability comparable to that of other optical biopsy modalities.
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Affiliation(s)
- Shin-Ei Kudo
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Masashi Misawa
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Yoshiki Wada
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan; Department of Gastroenterology and Hepatology, School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hiroki Nakamura
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Shinichi Kataoka
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Yasuharu Maeda
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Naoya Toyoshima
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Seiko Hayashi
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Makoto Kutsukawa
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Hiromasa Oikawa
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Yuichi Mori
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Noriyuki Ogata
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Toyoki Kudo
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Tomokazu Hisayuki
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Takemasa Hayashi
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Kunihiko Wakamura
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Hideyuki Miyachi
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Fumio Ishida
- Digestive Disease Center, Showa University, Northern Yokohama Hospital, Yokohama, Japan
| | - Haruhiro Inoue
- Digestive Disease Center, Showa University Koto Toyosu Hospital, Tokyo, Japan
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Tatehara S, Sato T, Terada T, Kataoka S, Ida H, Kimura M, Satomura K. Development of compact PDD system for early detection of oral carcinoma. Int J Oral Maxillofac Surg 2015. [DOI: 10.1016/j.ijom.2015.08.349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Yamada T, Abe K, Baba Y, Inubashiri E, Kawabata K, Kubo T, Maegawa Y, Fuchi N, Nomizo M, Shimada M, Shiozaki A, Hamada H, Matsubara S, Akutagawa N, Kataoka S, Maeda M, Masuzaki H, Sagawa N, Nakai A, Saito S, Minakami H. Vaccination during the 2013-2014 influenza season in pregnant Japanese women. Eur J Clin Microbiol Infect Dis 2014; 34:543-8. [PMID: 25311988 DOI: 10.1007/s10096-014-2259-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2014] [Accepted: 09/29/2014] [Indexed: 11/24/2022]
Abstract
This questionnaire survey was conducted at 11 hospitals in Japan to determine vaccination coverage against seasonal influenza and the prevalence rate of influenza among pregnant Japanese women. Of 2,808 postpartum women who gave birth at the 11 hospitals during the study period from March 1, 2014, to July 31, 2014, 1,713 (61 %) participated in this study and 876 (51 %) reported having received vaccination against influenza in or after October 2013. Women aged <25 years had a significantly lower vaccination rate than those aged ≥25 years (31 % vs. 53 %, respectively; p = 0.0000). Eighty-seven (5.1 %) and 1,626 (94.9 %) women did and did not contract influenza, respectively. Although prior birth did not affect overall vaccination coverage (50 % for primiparous vs. 53 % for multiparous), multiparous women had a significantly higher rate of contracting influenza than primiparous women, irrespective of vaccination status (5.6 % vs. 2.2 % [p = 0.0216] and 9.7 % vs. 3.5 % [p = 0.0003] for women with and without vaccination, respectively). The 2013-2014 vaccination program significantly reduced the influenza infection rate by 35 % (3.9 % vs. 6.3 % for women with and without vaccination, respectively; p = 0.0272). Seventy-two (83 %) of the 87 women took antiviral agents for the treatment of influenza and two (2.3 %) required hospitalization. These results suggested that pregnant Japanese women had a high level of concern regarding seasonal influenza. However, campaigns targeting young pregnant Japanese women, as well as multiparous women, for vaccination are needed in order to further reduce the incidence of influenza among pregnant Japanese women.
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Affiliation(s)
- T Yamada
- Department of Obstetrics and Gynecology, Hokkaido University Graduate School of Medicine, N15W7, Kita-ku, Sapporo, 060-8638, Japan,
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Gono T, Kawaguchi Y, Kaneko H, Katsumata Y, Takagi K, Ichida H, Hanaoka M, Baba S, Okamoto Y, Ota Y, Kataoka S, Yamanaka H. SAT0185 Characteristics of Cytokine Profiles and Prognositc Factors in Interstitial Lung Disease with Polymyositis/Dermatomyositis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.1911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Abstract
Various antitumor agents induce apoptotic cell death in tumor cells. Since the apoptosis program in tumor cells plays a critical role in the chemotherapy-induced tumor cell killing, it is suggested that the defect in the signaling pathway of apoptosis could cause a new form of multidrug resistance in tumor cells. This article describes the recent findings concerning the mechanisms of chemotherapy-induced apoptosis and discusses the implication of apoptosis resistance in cancer chemotherapy.
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Affiliation(s)
- T Mashima
- Institute of Molecular and Cellular Biosciences, University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo, 113, Japan
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Kataoka S, Yamaguchi M, Ihira K, Kakuta K, Tanuma F, Kudou T. W096 EVALUATION OF CESAREAN HYSTEROTOMY SCAR OF SINGLE-LAYER INTERRUPTED SUTURE BY SALINE CONTRAST SONOHYSTEROGRAPHY. Int J Gynaecol Obstet 2012. [DOI: 10.1016/s0020-7292(12)61821-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Shibata Y, Okano S, Shiroza T, Tahara T, Nakazawa K, Kataoka S, Ishida I, Kobayashi T, Yoshie H, Abiko Y. Characterization of human-type monoclonal antibodies against reduced form of hemin binding protein 35 from Porphyromonas gingivalis. J Periodontal Res 2011; 46:673-81. [PMID: 21644999 DOI: 10.1111/j.1600-0765.2011.01389.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
BACKGROUND AND OBJECTIVE The gram-negative anaerobe Porphyromonas gingivalis has been implicated as an important pathogen in the development of adult periodontitis, and its colonization of subgingival sites is critical in the pathogenic process. We previously identified a 35 kDa surface protein (hemin binding protein 35; HBP35) from P. gingivalis that exhibited coaggregation activity, while additional analysis suggested that this protein possessed an ability to bind heme molecules. For development of passive immunotherapy for periodontal diseases, human-type monoclonal antibodies have been prepared using HBP35 as an antigen in TransChromo mice. In the present study, we focused on a single antibody, TCmAb-h13, which is known to inhibit heme binding to recombinant HBP35. The aim of our investigation was to clarify the redox-related function of HBP35 and consider the benefits of human-type monoclonal antibodies. MATERIAL AND METHODS To examine the antigen recognition capability of TCmAbs with immunoblotting and Biacore techniques, we used the native form as well as several Cys-to-Ser variants of recombinant HBP35. RESULTS We found that the redox state of recombinant HBP35 was dependent on two Cys residues, (48) C and (51) C, in the thioredoxin active center (WCGxCx). Furthermore, TCmAb-h13 recognized the reduced forms of recombinant HBP35, indicating its inhibitory effect on P. gingivalis growth. CONCLUSION Hemin binding protein 35 appears to be an important molecule involved in recognition of the redox state of environmental conditions. In addition, TCmAb-h13 had an inhibitory effect on heme binding to recombinant HBP35, thereby interfering with P. gingivalis growth.
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Affiliation(s)
- Y Shibata
- Department of Biochemistry and Molecular Biology, Nihon University School of Dentistry at Matsudo, Chiba, Japan
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Gono T, Kawaguchi Y, Kaneko H, Nishimura K, Hanaoka M, Kataoka S, Okamoto Y, Katsumata Y, Yamanaka H. Anti-NR2A antibody as a predictor for neuropsychiatric systemic lupus erythematosus. Rheumatology (Oxford) 2011; 50:1578-85. [DOI: 10.1093/rheumatology/keq408] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
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Inoue K, Kuno T, Fukuhara H, Hamaguchi T, Fukata S, Karashima T, Kamada M, Shuin T, Sakakura N, Kasahara K, Watanabe H, Kozai T, Yasuda M, Kataoka S, Tanimura M, Atsushi K, Furihata M. [Clinical experience with transurethral resection of bladder tumor (TUR-Bt) guided by photodynamic diagnosis (PDD)]. Nihon Hinyokika Gakkai Zasshi 2009; 100:661-670. [PMID: 19999130 DOI: 10.5980/jpnjurol.100.661] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
PURPOSE To report our clinical experience regarding transurethral resection of bladder tumor (TUR-Bt) guided by photodynamic diagnosis (PDD) with intravesical instillations of 5-aminolevulinic acid (ALA) and to assess the usefulness of the therapeutic method. MATERIALS AND METHODS TUR-Bt guided by PDD was performed in 57 patients of which 47 were men and 10 women with a median age of 74.3 years (range 45-90), 36 were primary cases and 21 were recurrent cases with non-muscle invasive bladder cancer. Two to two and half hours prior to endoscopy 1.5 g ALA dissolved in 50 ml of 8.4% sodium hydrogen carbonate (NaHCO3) solution was instilled intravesically. For fluorescence excitation a blue light source (D-LIGHT System, Karl Storz Endoscopy Japan K.K.) was used. The tumorous lesions under white light guidance and the lesion with fluorescent excitation under blue (fluorescence) light guidance were taken by cold cup as a biopsy and also resected sequentially. To evaluate the accuracy of PDD, the levels in images of the ALA-induced fluorescence were compared with the pathological results. To evaluate the availability of TUR-Bt guided by PDD, survival Analysis regarding vesical recurrence was retrospectively examined compared to the cases underwent conventional TUR-Bt under white light guidance. Moreover, in these cases, multivariate analysis using Cox proportional-hazards model was performed to detect the clinico-pathological factor independently contribute to improving prognosis. (Results) In the 301 specimens obtained from 57 patients, the sensitivity and specificity of PDD were 92.5% and 60.1%, whereas the sensitivity and specificity of conventional endoscopic examination under white light guidance were 81.6% and 79.5%, respectively. Median follow-up period was 19.1 (range 8.6-49.9) months in 57 patients underwent TUR-Bt guided by PDD. Eight of 57 patients recurred and recurrence-free survival rate was 88.2 +/- 0.1% (at 12 months) and 76.2 +/- 0.1% (24-48 months). Median follow-up period was 49.9 (5.0-145.0) months in 149 patients underwent conventional TUR-Bt. Ninety-nine of 149 patients recurred and recurrence-free survival rate was 60.3 +/- 0.0% (12 months) and 31.6 +/- 0.0% (24-48 months). There was statistical significance in recurrence-free survival rate between these 2 therapeutic groups (p < 0.001). Moreover, multivariate analysis revealed the independent factor contribute to improving prognosis was only TUR-Bt guided by PDD (hazard ratio 0.279, p = 0.001). CONCLUSION It was suggested that TUR-Bt guided by PDD might reduce the risk of vesical recurrence in the early stage after operation of non-muscle invasive bladder cancer.
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Anchi T, Tamura K, Inoue K, Satake H, Ashida S, Nishikawa H, Kamada M, Yasuda M, Kataoka S, Nakajima H, Shuin T. [Experience in the treatment of eight cases of Fournier's gangrene]. Hinyokika Kiyo 2009; 55:545-549. [PMID: 19827615] [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] [Indexed: 05/28/2023]
Abstract
Fournier's gangrene is a rare disease of rapidly progressive necrotising fasciitis of the genital, perineal and perianal regions and leads to sepsis and death. We report 8 cases of Fournier's gangrene treated at our hospital and affiliated hospitals from 1997 to 2007. There were seven males and one female in the series, and the age range was 23-89 years (mean age 56.6 years). Four patients among them had diabetes mellitus. We rescued all patients by broad-spectrum antibacterial chemotherapy and debridement. Good management should be based on broad-spectrum antibacterial chemotherapy, debridement and intensive care.
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Affiliation(s)
- Takashi Anchi
- Department of Urology, Kochi Medical School, Kochi University
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Anchi T, Tamura K, Inoue K, Ashida S, Yasuda M, Kataoka S, Saito K, Kuriyama M, Hiroi M, Sasaguri S, Shuin T. [Localized Fournier's gangrene of the penis: a case report]. Hinyokika Kiyo 2009; 55:153-156. [PMID: 19378828] [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] [Indexed: 05/27/2023]
Abstract
Fournier's gangrene is a rare disease with rapidly progressive necrotising fasciitis of the genital, perineal and perianal regions and leads to sepsis and death. We reported a case of localized Fournier's gangrene of the penis. A 23-year-old man suffered an abrasion of the penis during oral sex with a commercial sex worker. Because pain as well as redness and swelling appeared on the penile surface, he consulted the nearest hospital. Since Fournier's gangrene was suspected, he was admitted to our hospital. According to the clinical symptoms and diagnostic imaging by using magnetic resonance imaging, we diagnosed Fournier's gangrene. Immediately, we started broad-spectrum antibacterial chemotherapy and performed debridement. The postoperative course was good and then the open wound was closed with artificial corium and full thickness skin graft to avoid erectile disturbance.
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Affiliation(s)
- Takashi Anchi
- Department of Urology, Kochi Medical School, Kochi university
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Nakamura S, Koga M, Kataoka S, Oda M, Ohkubo T, Kobayashi Y. Structures of NADH and NAD +bound 3α-hydroxysteroid dehydrogenase from Pseudomonassp. B-0831. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308091460] [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: 11/10/2022] Open
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Tachibana-Ono M, Yoshida A, Kataoka S, Ansai T, Shintani Y, Takahashi Y, Toyoshima K, Takehara T. Identification of the genes associated with a virulent strain of Porphyromonas gingivalis using the subtractive hybridization technique. ACTA ACUST UNITED AC 2008; 23:84-7. [PMID: 18173803 DOI: 10.1111/j.1399-302x.2007.00396.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND/AIMS Porphyromonas gingivalis, a major etiological organism implicated in periodontal disease, can be classified into virulent and avirulent strains. Our aim was to identify a gene for the virulence of P. gingivalis. METHODS The subtractive hybridization technique was employed to identify the genes specific to P. gingivalis W83, a virulent strain. In this study, P. gingivalis W83 was used as the tester strain, and P. gingivalis ATCC 33277 was the driver strain. The prevalence of W83-specific genes was determined by Southern blot analysis of several P. gingivalis strains. RESULTS We obtained 575 colonies using the subtractive hybridization technique. From among these, 26 DNA fragments were subjected to a homology search using the BLAST program. Compared with strain ATCC 33277, strain W83 contained 12 unique clones. The specificities of the isolated DNA fragments were analyzed among four P. gingivalis strains by Southern blot analysis. Five genes showed specificity for strain W83 compared with strain ATCC 33277. All five genes were also identified in strain W50. CONCLUSIONS The subtractive hybridization technique was effective in screening the two strains for specific DNA sequences, some of which might be responsible for determining virulence. The results suggested that several genes specific to strain W83 were associated with its virulence. Further analysis of these DNA fragments will provide important information on the pathogenesis of virulent P. gingivalis strains.
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Affiliation(s)
- M Tachibana-Ono
- Division of Community Oral Health Science, Kyushu Dental College, Kokurakita-ku, Kitakyushu, Japan
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Ishimura M, Suda M, Morizumi K, Kataoka S, Maeda T, Kurokawa S, Hiyama Y. Effects of KP-496, a novel dual antagonist at the cysteinyl leukotriene receptor 1 and the thromboxane A(2) receptor, on airway obstruction in guinea pigs. Br J Pharmacol 2007; 153:669-75. [PMID: 18037905 DOI: 10.1038/sj.bjp.0707602] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND AND PURPOSE KP-496 is a novel dual antagonist for cysteinyl leukotriene receptor 1 (CysLT(1)) and thromboxane A(2) (TXA(2)) receptor (TP). The aim of this study was to evaluate the pharmacological profile of inhaled KP-496 and its effects on airway obstruction. EXPERIMENTAL APPROACH Antagonist activities of inhaled KP-496 were investigated using bronchoconstriction induced in guinea pigs by LTD(4) or U46619, a stable TXA(2) mimetic. Guinea pigs sensitized with injections of ovalbumin were used to assess the effects of inhaled KP-496 on bronchoconstriction induced by antigen (i.v.). Another set of guinea pigs were sensitized and challenged with ovalbumin by inhalation and the effects of inhaled KP-496 on immediate and late airway responses and airway hyperresponsiveness were investigated. KEY RESULTS KP-496 significantly inhibited LTD(4)- and U46619-induced bronchoconstriction in a dose-dependent manner. The inhibitory effects of KP-496 (1%) were comparable to those of montelukast (a CysLT(1) antagonist, p.o., 0.3 mg kg(-1)) or seratrodast (a TP antagonist, p.o., 3 mg kg(-1)). KP-496 (1%) and oral co-administration of montelukast (10 mg kg(-1)) and seratrodast (20 mg kg(-1)) significantly inhibited antigen-induced bronchoconstriction, whereas administration of montelukast or seratrodast separately did not inhibit antigen-induced bronchoconstriction. KP-496 exhibited dose-dependent and significant inhibitory effects on the immediate and late airway responses and airway hyperresponsiveness following antigen challenge. CONCLUSIONS AND IMPLICATIONS KP-496 exerts effects in guinea pigs which could be beneficial in asthma. These effects of KP-496 were greater than those of a CysLT(1) antagonist or a TP antagonist, in preventing antigen-induced airway obstruction.
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Affiliation(s)
- M Ishimura
- Pharmacology Department, Central Research Laboratories, Kaken Pharmaceutical Co. Ltd, Kyoto, Japan.
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Rouleau C, Weber W, Bagley R, Morgenbesser SD, Kataoka S, Honma N, Hasegawa K, Ishida I, Thurberg BL, Teicher BA. Endosialin/TEM1: Cellular localization and prevalence in soft-tissue tumors and carcinomas. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.20520] [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: 11/20/2022] Open
Abstract
20520 Background: Tumors grow more slowly in endosialin/TEM1 KO mice compared to WT, suggesting that host endosialin/TEM1-positive stroma promotes malignancy (Nanda, PNAS, 2006). Methods: We surveyed 92 human clinical samples by IHC (52 epithelial tumors, 40 sarcomas) to measure the extent of endosialin/TEM1 expression and assess cellular localization. Expression was also studied in primary cell cultures and 49 cancer lines. Results: 46/52 adenocarcinomas and carcinomas (88.5%) expressed endosialin/TEM1 mainly in pericytes (7/7 bladder, 7/11 breast, 5/5 colon, 7/8 ovarian, 7/7 renal, 2/2 liver, 4/5 lung, and 7/7 gastric). In some tumors, endosialin/TEM1 was present in pericytes and in fibroblasts (2/7 bladder, 4/11 breast, 5/5 colon, 5/8 ovarian, 2/7 renal, 2/2 liver, 1/5 lung and 7/7 gastric cancers). 32/40 sarcomas (80%) expressed endosialin/TEM1 mainly in pericytes (10/11 synovial sarcomas, 9/10 malignant fibrous histiocytomas, 3/5 Ewing's sarcomas, 3/5 angiosarcomas, 3/4 rhabdomyosarcomas, 2/2 pleiomorphic sarcomas, 1/1 Kaposi's sarcoma, 0/1 leiomyosarcoma and 1/1 liposarcoma). Synovial sarcomas displayed intense fibroblast staining. Endosialin/TEM1 was expressed by sarcoma cells in a few samples. In culture, we previously showed expression in human fibroblasts, endothelial precursor cells, pericytes and mesenchymal stem cells (MSC). We now report that endosialin/TEM1 mRNA is present in MSC during osteogenic and adipogenic differentiation. In 49 human tumor lines, expression was restricted to sarcoma cells (7/15 sarcoma, 0/5 melanoma, 0/2 neuroblastoma, 0/4 breast, 0/1 ovarian, 0/3 prostate, 0/1 renal, 0/1 liver, 0/3 pancreatic, 0/6 colorectal and 0/8 hematopoietic cancer lines). Conclusions: Endosialin/TEM1 is frequently expressed in clinical cancer (85% of 92 samples), both in epithelial and mesenchymal tumors. Cellular expression is mesenchymal in clinical samples and in culture. In tissues, endosialin/TEM1 is present in pericytes and fibroblasts, with some expression in sarcoma cells. The importance of endosialin/TEM1-positive stroma in experimental animals and prevalence in patient samples warrant further investigation. Endosialin/TEM1 may be a useful therapeutic target. [Table: see text]
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Affiliation(s)
- C. Rouleau
- Genzyme Analytical Services and Genzyme Stem Cell, Genzyme Corp., Framingham, MA; Kirin Brewery Co., Takasaki, Japan
| | - W. Weber
- Genzyme Analytical Services and Genzyme Stem Cell, Genzyme Corp., Framingham, MA; Kirin Brewery Co., Takasaki, Japan
| | - R. Bagley
- Genzyme Analytical Services and Genzyme Stem Cell, Genzyme Corp., Framingham, MA; Kirin Brewery Co., Takasaki, Japan
| | - S. D. Morgenbesser
- Genzyme Analytical Services and Genzyme Stem Cell, Genzyme Corp., Framingham, MA; Kirin Brewery Co., Takasaki, Japan
| | - S. Kataoka
- Genzyme Analytical Services and Genzyme Stem Cell, Genzyme Corp., Framingham, MA; Kirin Brewery Co., Takasaki, Japan
| | - N. Honma
- Genzyme Analytical Services and Genzyme Stem Cell, Genzyme Corp., Framingham, MA; Kirin Brewery Co., Takasaki, Japan
| | - K. Hasegawa
- Genzyme Analytical Services and Genzyme Stem Cell, Genzyme Corp., Framingham, MA; Kirin Brewery Co., Takasaki, Japan
| | - I. Ishida
- Genzyme Analytical Services and Genzyme Stem Cell, Genzyme Corp., Framingham, MA; Kirin Brewery Co., Takasaki, Japan
| | - B. L. Thurberg
- Genzyme Analytical Services and Genzyme Stem Cell, Genzyme Corp., Framingham, MA; Kirin Brewery Co., Takasaki, Japan
| | - B. A. Teicher
- Genzyme Analytical Services and Genzyme Stem Cell, Genzyme Corp., Framingham, MA; Kirin Brewery Co., Takasaki, Japan
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Kataoka S, Sakuma S, Wang J, Yoshihara A, Miyazaki H. Changes in electrical resistance of sound fissure enamel in first molars for 66 months from eruption. Caries Res 2007; 41:161-4. [PMID: 17284919 DOI: 10.1159/000098051] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2005] [Accepted: 08/09/2006] [Indexed: 11/19/2022] Open
Abstract
The purposes of this study were to investigate the enamel maturation process in the occlusal pit of sound first molars by measuring electrical resistance. Ninety-nine sound first molars in 34 children (mean age of 6.47 +/- 0.51 years) were measured electrically once every 6 months and were monitored for a maximum of 66 months. Electrical resistance increased during the posteruptive period. However, the results suggest that posteruptive enamel maturation in the occlusal pits may not be completed even 66 months after tooth eruption.
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Affiliation(s)
- S Kataoka
- Division of Preventive Dentistry, Department of Oral Health Science, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan.
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Bagley R, Kataoka S, Honma N, Weber W, Hasegawa K, Yao M, Rouleau C, Roberts B, Ishida I, Teicher B. 422 POSTER Endosialin/TEM 1 a tumor stromal target in stem cells, progenitor cells and pericytes. EJC Suppl 2006. [DOI: 10.1016/s1359-6349(06)70427-x] [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: 10/23/2022] Open
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38
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Rouleau C, Kataoka S, Honma N, Weber W, Kurtzberg L, Hasegawa K, Bagley R, Morgenbesser S, Ishida I, Teicher B. 372 POSTER Endosialin/TEM-1 glycoprotein: a novel therapeutic target for mesenchymal malignancy. EJC Suppl 2006. [DOI: 10.1016/s1359-6349(06)70377-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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39
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Suda M, Morizumi K, Ishimura M, Maeda T, Kataoka S, Hiyama Y. Effects of KP-496DPI, a Novel Dual Antagonist for Cysteinyl Leukotriene Receptor (CysLT1R) and Thromboxane A2 Receptor (TP), on the Asthmatic Responses in Guinea Pigs. J Allergy Clin Immunol 2006. [DOI: 10.1016/j.jaci.2005.12.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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40
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Kataoka S, Kobayashi H, Chiba K, Nakamura M, Shinada S, Morita S, Lin M, Shibata Y. Neonatal alloimmune thrombocytopenia due to an antibody against a labile component of human platelet antigen-3b (Bak b). Transfus Med 2005; 14:419-23. [PMID: 15569236 DOI: 10.1111/j.1365-3148.2004.00537.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report the second case of neonatal alloimmune thrombocytopenia due to anti-human platelet antigen (HPA)-3b (Bak(b)) antibody. The infant was severely affected with intracranial haemorrhage. Most importantly, we were able to detect this antibody only by using fresh, unfixed platelets as antigen. This antibody was detectable neither by conventional mixed passive haemagglutination, platelet immunofluorescence test using fixed platelets, nor by monoclonal antigen immobilization of platelet antigen assay using solubilized platelets. We assume that this antibody reacts only with fresh platelets and that the antigen is a labile component of HPA-3b (Bak(b)).
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MESH Headings
- Antigens, Human Platelet/immunology
- Autoantibodies/immunology
- Blood Platelets/immunology
- Female
- Humans
- Infant, Newborn
- Infant, Newborn, Diseases/diagnosis
- Infant, Newborn, Diseases/immunology
- Intracranial Hemorrhages/etiology
- Male
- Platelet Function Tests
- Purpura, Thrombocytopenic, Idiopathic/complications
- Purpura, Thrombocytopenic, Idiopathic/diagnosis
- Purpura, Thrombocytopenic, Idiopathic/immunology
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Affiliation(s)
- S Kataoka
- Saiseikai Sanjo Hospital, 6-18 Inohata, Sanjo City, Niigata 955-8511, Japan.
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41
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Sata F, Yamada H, Yamada A, Kato EH, Kataoka S, Saijo Y, Kondo T, Tamaki J, Minakami H, Kishi R. A polymorphism in the CYP17 gene relates to the risk of recurrent pregnancy loss. Mol Hum Reprod 2004; 9:725-8. [PMID: 14561815 DOI: 10.1093/molehr/gag089] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The CYP17 gene encodes the enzyme cytochrome P450c17alpha, which mediates both 17alpha-hydroxylase and 17,20-lyase activity in the steroid biosynthesis pathway. A T-->C polymorphism in the 5' promoter region of CYP17 has been described. To examine the association between recurrent pregnancy loss (RPL) and a polymorphism in CYP17, a case-control study of 117 cases with RPL and 164 controls was conducted. This polymorphism was investigated by PCR/restriction fragment length polymorphism using DNA from peripheral lymphocytes. The T-->C transition in the variant allele (A2) creates a new recognition site for the restriction enzyme MspA1, which permits designation of the wildtype allele (A1) and A2. Women with the A2 allele of CYP17 had an increased risk of RPL [A1/A1 genotype (reference); A1/A2 genotype: odds ratio (OR), 1.68; 95% confidence interval (CI), 0.94-3.01; A2/A2 genotype: OR, 2.37; 95% CI, 1.16-4.83; P trend, 0.016]. Additionally, there was a similar tendency for the increased risk of primary RPL [A1/A1 genotype (reference); A1/A2 genotype: OR, 2.14; 95% CI, 1.14-4.01; A2/A2 genotype: OR, 2.50; 95% CI, 1.16-5.41; P trend, 0.015]. These results suggest that possession of the A2 variant of CYP17 may predispose to an increased risk of RPL with a gene dosage effect.
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Affiliation(s)
- F Sata
- Department of Public Heath, Hokkaido University Graduate School of Medicine, Sapporo, Japan.
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42
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Kataoka S, Motoki K, Mori E, Matsumoto A, Thomas M, Tomura T, Humphreys R, Albert V, Ware C, Ishida I. 310 Enhanced apoptosis and tumor regression induced by a direct agonist antibody to TRAIL-R2. EJC Suppl 2004. [DOI: 10.1016/s1359-6349(04)80318-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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43
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Abstract
Although mutations in the CHAC gene have been identified in autosomal recessive chorea-acanthocytosis (AR-ChAc), the molecular basis of autosomal dominant ChAc (AD-ChAc) remains to be determined. The authors investigated abnormalities in the CHAC gene in an AD-ChAc family with mRNA and sequencing analyses of mRNA and genomic DNA. A novel single heterozygous mutation in the last nucleotide of exon 57 of the CHAC gene, which could cause skipping of the exon, was detected in affected siblings.
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Affiliation(s)
- S Saiki
- Department of Neurology, Kanazawa Medical University, Ishikawa, Japan
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44
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Mori E, Thomas M, Motoki K, Nakazawa K, Tahara T, Tomizuka K, Ishida I, Kataoka S. Human normal hepatocytes are susceptible to apoptosis signal mediated by both TRAIL-R1 and TRAIL-R2. Cell Death Differ 2003; 11:203-7. [PMID: 14576771 DOI: 10.1038/sj.cdd.4401331] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) triggers apoptosis in tumor cells without toxicity to normal cells, but some recombinant versions of TRAIL caused hepatocyte death. We generated fully human monoclonal antibodies (mAbs) that bind specifically to TRAIL receptor 1 (TRAIL-R1) and TRAIL receptor 2 (TRAIL-R2), which mediate apoptosis signal when they ligate with TRAIL, to investigate the contribution of each receptor to induce tumor cell apoptosis and hepatocyte toxicity. All of mAbs to TRAIL-R1 and TRAIL-R2 induced cell death in several cancer cell lines susceptible to TRAIL but not in human umbilical vein endothelial cells in vitro. Both anti-TRAIL-R1 mAbs and anti-TRAIL-R2mAbs also caused cell death in hepatocytes. However, a subset of mAbs to TRAIL-R2, which was characterized by the TRAIL blocking activity, did not show strong hepatocyte toxicity. These results indicate that human normal hepatocytes are susceptible to both TRAIL-R1- and TRAIL-R2-mediated apoptosis signal. Cell Death and Differentiation (2004) 11, 203-207. doi:10.1038/sj.cdd.4401331 Published online 24 October 2003
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Affiliation(s)
- E Mori
- Pharmaceutical Research Laboratories, Kirin Brewery Co. Ltd., 3 Miyahara, Takasaki, Gunma 370-1295, Japan
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Abstract
The authors correlated neurologic features of rostral lateral pontine infarct (rLPI) with lesion location on MRI. rLPI is a motor-sensory stroke presenting as crural monoparesis or crural dominant hemiparesis and segmental superficial or deep sensory disturbances. The dorsolateral pontine base causes crural paresis without supranuclear facial palsy.
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Affiliation(s)
- S Kataoka
- Department of Neurology, Kanazawa Medical University, Ishikawa, Japan
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46
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Takahashi M, Takada H, Takagi K, Kataoka S, Soma R, Kuwayama H. Gastric restitution is inhibited by dexamethasone, which is reversed by hepatocyte growth factor and rebamipide. Aliment Pharmacol Ther 2003; 18 Suppl 1:126-32. [PMID: 12925150 DOI: 10.1046/j.1365-2036.18.s1.19.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Glucocorticoids have been shown to induce peptic ulcers, especially when co-administered with NSAIDs. Hepatocyte growth factor (HGF) plays a role in gastric ulcer repair, facilitating the restitution of gastric mucosal epithelial cells. HGF expression is induced by PGs in gastric fibroblasts. We hypothesized that dexamethasone (DEX) may inhibit PG production and HGF expression, thus inhibiting HGF-induced gastric epithelial restitution. AIM To investigate the effect of DEX on gastric restitution, using cultured gastric cells, the role of HGF in the restitution inhibited by DEX, and the effect of rebamipide on DEX- inhibited restitution. METHODS Human gastric fibroblasts were prepared from human stomach obtained at surgery; PGE2 and HGF is determined by ELISA; Restitution was assessed by the round wound restitution model, using coculture of gastric fibroblasts and epithelial cells; COX-2 and HGF mRNA were quantified by TaqMan RT-PCR system. RESULTS 1. DEX inhibited HGF mRNA and COX-2 mRNA. Accordingly, it inhibited PGE2 and HGF release. 2. DEX inhibited the restitution of gastric cells. 3. The inhibition of restitution was reversed by HGF and rebamipide to the same extent. 4. Rebamipide induced PGE2 and HGF. CONCLUSION DEX inhibits restitution via HGF depletion, and rebamipide reverses the inhibited restitution by HGF induction.
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Affiliation(s)
- M Takahashi
- Department of Gastroenterology and Hepatology, University Hospital at Koshigaya, Dokkyo University School of Medicine, Saitama, Japan.
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47
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Sonomura T, Kataoka S, Chikugo T, Hirooka T, Makimoto S, Nakamoto T, Sato M. Epidermoid cyst originating from an intrapancreatic accessory spleen. Abdom Imaging 2002; 27:560-2. [PMID: 12172998 DOI: 10.1007/s00261-001-0145-1] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Pancreatectomy in a 45-year-old woman showed, after pathologic analysis, an epidermoid cyst originating from an intrapancreatic accessory spleen. This mass consisted of parenchymal and cystic components. It is important to note the relation between the splenic parenchyma and the parenchymal component of the mass for the differential diagnosis of a cystic mass in the pancreatic tail.
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Affiliation(s)
- T Sonomura
- Department of Radiology, Kishiwada Tokushukai Hospital, 4-22-38 Isonokami-Cho, Kishiwada-Shi, Osaka, 596-8522, Japan
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Abstract
Proanthocyanidins, extracted from grape seeds, are widely used mainly as nutritional supplements. However, there has not been a systematic report to investigate toxicological studies on proanthocyanidins, especially in oral administration. In our studies, proanthocyanidin-rich extract from grape seeds was subjected to a series of toxicological tests to document its safety for use in various foods. The grape seed extract (GSE) was examined for acute and subchronic oral toxicity using Fischer 344 rats and for mutagenic potential by the reverse mutation test using Salmonella typhimurium, the chromosomal aberration test using CHL cells, and the micronucleus test using ddY mice. No evidence of acute oral toxicity at dosages of 2 and 4 g/kg, and no evidence of mutagenicity in the above tests was found. Administration of GSE as a dietary admixture at levels of 0.02, 0.2 and 2% (w/w) to the rats for 90 days did not induce noticeable signs of toxicity. The no-observed-adverse-effect level (NOAEL) of GSE in the subchronic toxicity study was 2% in the diet (equal to 1410 mg/kg body weight/day in males and 1501 mg/kg body weight/day in females). The results of our studies indicate a lack of toxicity and support the use of proanthocyanidin-rich extract from grape seeds for various foods.
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Affiliation(s)
- J Yamakoshi
- Research and Development Division, Kikkoman Corporation, 399 Noda, Noda City, Chiba Pref. 278-0037, Japan.
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49
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Kataoka S, Furuta I, Yamada H, Kato EH, Ebina Y, Kishida T, Kobayashi N, Fujimoto S. Increased apoptosis of human fetal membranes in rupture of the membranes and chorioamnionitis. Placenta 2002; 23:224-31. [PMID: 11945090 DOI: 10.1053/plac.2001.0776] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Apoptosis is thought to participate pathophysiologically in the rupture of human fetal membranes (ROM). The aim of this study was to assess apoptosis of the amnion and the chorion in relation to ROM and chorioamnionitis (CAM). The amnion and chorion at the position of the cervical os and fundus of the uterus were obtained from 44 patients. Apoptotic DNA fragmentation was densitometrically determined, and the relative ratio was used for the quantitative evaluation. Among patients without CAM, the relative ratios of apoptosis in the amnion from patients with ROM were higher than those in patients without ROM (P< 0.05). Among patients without ROM, the apoptotic levels in the amnion from patients with CAM were higher than those in patients without CAM (P< 0.05). These were the cases with the amnion at the position of cervical os and fundus, but not with the chorion. The highest ratio of apoptosis was seen in the amnion from patients with CAM and ROM. Among patients with ROM and no CAM, the apoptotic levels at the cervical os in the amnion (P=0.059) and chorion (P< 0.05) was higher than those at the fundus. The increased apoptosis of human fetal membranes was related to ROM and CAM. Apoptosis plays a role in the pathophysiology of ROM.
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Affiliation(s)
- S Kataoka
- Department of Obstetrics and Gynecology, Hokkaido University Graduate School of Medicine, Kita-ku N15 W7, Sapporo 060-8638, Japan
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50
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Taya S, Inagaki N, Sengiku H, Makino H, Iwamatsu A, Urakawa I, Nagao K, Kataoka S, Kaibuchi K. Direct interaction of insulin-like growth factor-1 receptor with leukemia-associated RhoGEF. J Cell Biol 2001; 155:809-20. [PMID: 11724822 PMCID: PMC2150867 DOI: 10.1083/jcb.200106139] [Citation(s) in RCA: 89] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Insulin-like growth factor (IGF)-1 plays crucial roles in growth control and rearrangements of the cytoskeleton. IGF-1 binds to the IGF-1 receptor and thereby induces the autophosphorylation of this receptor at its tyrosine residues. The phosphorylation of the IGF-1 receptor is thought to initiate a cascade of events. Although various signaling molecules have been identified, they appear to interact with the tyrosine-phosphorylated IGF-1 receptor. Here, we identified leukemia-associated Rho guanine nucleotide exchange factor (GEF) (LARG), which contains the PSD-95/Dlg/ZO-1 (PDZ), regulator of G protein signaling (RGS), Dbl homology, and pleckstrin homology domains, as a nonphosphorylated IGF-1 receptor-interacting molecule. LARG formed a complex with the IGF-1 receptor in vivo, and the PDZ domain of LARG interacted directly with the COOH-terminal domain of IGF-1 receptor in vitro. LARG had an exchange activity for Rho in vitro and induced the formation of stress fibers in NIH 3T3 fibroblasts. When MDCKII epithelial cells were treated with IGF-1, Rho and its effector Rho-associated kinase (Rho-kinase) were activated and actin stress fibers were enhanced. Furthermore, the IGF-1-induced Rho-kinase activation and the enhancement of stress fibers were inhibited by ectopic expression of the PDZ and RGS domains of LARG. Taken together, these results indicate that IGF-1 activates the Rho/Rho-kinase pathway via a LARG/IGF-1 receptor complex and thereby regulates cytoskeletal rearrangements.
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Affiliation(s)
- S Taya
- Department of Cell Pharmacology, Graduate School of Medicine, Nagoya University, Showa-ku, Nagoya 466-8550, Japan
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