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Sakaeyama Y, Kondo K, Terazono S, Fuchinoue Y, Kubota S, Mikai M, Abe M, Sugo N, Nagao T, Nemoto M. Local and systemic factors associated with quantitative stiffness of carotid plaque. Acta Neurochir (Wien) 2024; 166:54. [PMID: 38289409 DOI: 10.1007/s00701-024-05952-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 01/06/2024] [Indexed: 02/01/2024]
Abstract
PURPOSE Plaque stiffness in carotid artery stenosis is a clinically important factor involved in the development of stroke and surgical complications. The purpose of this study was to clarify which local and systemic factors are associated with the quantitatively measured stiffness of plaque. METHODS The subjects were 104 consecutive patients who underwent carotid endarterectomy at our institution. To measure quantitative stiffness of plaque, we used an industrial hard meter in the operating room within 1 h after removal of plaque. Local factors related to carotid plaque hardness were evaluated, including maximum intima-media thickness (max IMT), degree of stenosis using the European Carotid Surgery Trial (ECST), presence of ulceration or calcification, and echo brightness on preoperative carotid ultrasound. The degree of stenosis was also evaluated using the North American Symptomatic Carotid Endarterectomy Trial method in digital subtraction angiography. Age, sex, and presence or absence of hypertension, diabetes, and dyslipidemia (low-density lipoprotein cholesterol and triglyceride [TG] levels) served as systemic factors and were compared with the quantitative stiffness of carotid plaque. RESULTS In multivariate analysis, ECST stenosis degree, calcification, and IMT max as local factors affected plaque stiffness. As a systemic factor, plaque stiffness was statistically significantly negatively correlated with TG values in multivariate analysis (p < 0.05). CONCLUSION The quantitative stiffness of the plaque was negatively correlated with TG levels as a systemic factor in addition to local factors. This might suggest that reducing high TG levels is associated with plaque stabilization.
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Affiliation(s)
- Yuki Sakaeyama
- Department of Neurosurgery (Omori), School of Medicine, Faculty of Medicine, Toho University, 6-11-1, Omori-Nishi, Ota-Ku, Tokyo, 143-8541, Japan
| | - Kosuke Kondo
- Department of Neurosurgery (Omori), School of Medicine, Faculty of Medicine, Toho University, 6-11-1, Omori-Nishi, Ota-Ku, Tokyo, 143-8541, Japan
| | - Sayaka Terazono
- Department of Neurosurgery (Omori), School of Medicine, Faculty of Medicine, Toho University, 6-11-1, Omori-Nishi, Ota-Ku, Tokyo, 143-8541, Japan
| | - Yutaka Fuchinoue
- Department of Neurosurgery (Omori), School of Medicine, Faculty of Medicine, Toho University, 6-11-1, Omori-Nishi, Ota-Ku, Tokyo, 143-8541, Japan
| | | | - Masataka Mikai
- Department of Neurosurgery (Omori), School of Medicine, Faculty of Medicine, Toho University, 6-11-1, Omori-Nishi, Ota-Ku, Tokyo, 143-8541, Japan
| | | | - Nobuo Sugo
- Department of Neurosurgery (Omori), School of Medicine, Faculty of Medicine, Toho University, 6-11-1, Omori-Nishi, Ota-Ku, Tokyo, 143-8541, Japan.
| | - Takaaki Nagao
- Department of Neurosurgery (Sakura), School of Medicine, Faculty of Medicine, Toho University, Sakura-City, Chiba, Japan
| | - Masaaki Nemoto
- Department of Neurosurgery (Sakura), School of Medicine, Faculty of Medicine, Toho University, Sakura-City, Chiba, Japan
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Nagao T, Nemoto M, Sugo N, Harada N, Masuda H, Nagao T, Shibuya K, Kondo K. Relationship Between Quantitative Tumor Consistency and Pathological Factors in Intracranial Meningioma. Acta Neurochir (Wien) 2023; 165:2895-2902. [PMID: 37432556 DOI: 10.1007/s00701-023-05712-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 06/30/2023] [Indexed: 07/12/2023]
Abstract
BACKGROUND The consistency of intracranial meningiomas is an important clinical factor because it affects the success of surgical resection. This study aimed at identifying and quantitatively measuring pathological factors that contribute to the consistency of meningiomas. Furthermore, we investigated the relationship between these factors and preoperative neuroradiological imaging. METHODS We analyzed 42 intracranial meningioma specimens, which had been removed at our institution between October 2012 and March 2018. Consistency was measured quantitatively after resection using an industrial stiffness meter. For pathological evaluation, we quantitatively measured the collagen-fiber content through binarization of images of Azan-Mallory-stained section. We assessed calcification and necrosis semi-quantitatively using images acquired of Hematoxylin and Eosin stained samples. The relationship between collagen-fiber content rate and imaging findings was examined. RESULTS The content of collagen fibers significantly positively correlated with meningioma consistency (p < 0.0001). Collagen-fiber content was significantly higher in low- and iso-intensity regions compared with high-intensity regions on the magnetic resonance T2-weighted images (p = 0.0148 and p = 0.0394, respectively). Calcification and necrosis showed no correlation with tumor consistency. CONCLUSIONS The quantitative hardness of intracranial meningiomas positively correlated with collagen-fiber content; thus, the amount of collagen fibers may be a factor that determines the hardness of intracranial meningiomas. Our results demonstrate that T2-weighted images reflect the collagen-fiber content and are useful for estimating tumor consistency preoperatively and non-invasively.
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Affiliation(s)
- Takaaki Nagao
- Department of Neurosurgery (Sakura), School of Medicine, Faculty of Medicine, Toho University, Sakura-shi, Chiba, Japan.
- Department of Neurosurgery (Omori), School of Medicine, Faculty of Medicine, Toho University, Ota-ku, Tokyo, Japan.
| | - Masaaki Nemoto
- Department of Neurosurgery (Sakura), School of Medicine, Faculty of Medicine, Toho University, Sakura-shi, Chiba, Japan
| | - Nobuo Sugo
- Department of Neurosurgery (Omori), School of Medicine, Faculty of Medicine, Toho University, Ota-ku, Tokyo, Japan
| | - Naoyuki Harada
- Department of Neurosurgery (Omori), School of Medicine, Faculty of Medicine, Toho University, Ota-ku, Tokyo, Japan
| | - Hiroyuki Masuda
- Department of Neurosurgery (Sakura), School of Medicine, Faculty of Medicine, Toho University, Sakura-shi, Chiba, Japan
| | - Takeki Nagao
- Department of Neurosurgery (Sakura), School of Medicine, Faculty of Medicine, Toho University, Sakura-shi, Chiba, Japan
| | - Kazutoshi Shibuya
- Department of Surgical Pathology, Toho University Omori Medical Center, Ota-ku, Tokyo, Japan
| | - Kosuke Kondo
- Department of Neurosurgery (Omori), School of Medicine, Faculty of Medicine, Toho University, Ota-ku, Tokyo, Japan
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Goto M, Oriyama T, Kawahara K, Shibata A, Nagao T. Response to the Letter to the Editor re: "Intraosseous carcinoma of the anterior maxilla identified as the occult primary tumour of carcinoma of unknown primary". Int J Oral Maxillofac Surg 2023; 52:1016. [PMID: 36764866 DOI: 10.1016/j.ijom.2023.01.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 01/24/2023] [Indexed: 02/11/2023]
Affiliation(s)
- M Goto
- Department of Maxillofacial Surgery, School of Dentistry, Aichi Gakuin University, Chikusa-ku, Nagoya, Japan.
| | - T Oriyama
- Department of Maxillofacial Surgery, School of Dentistry, Aichi Gakuin University, Chikusa-ku, Nagoya, Japan
| | - K Kawahara
- Department of Oral and Maxillofacial Surgery, Gifu Prefectural Tajimi Hospital, Tajimi, Gifu, Japan
| | - A Shibata
- Department of Oral and Maxillofacial Surgery, Gifu Prefectural Tajimi Hospital, Tajimi, Gifu, Japan
| | - T Nagao
- Department of Maxillofacial Surgery, School of Dentistry, Aichi Gakuin University, Chikusa-ku, Nagoya, Japan
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Samejima J, Okami J, Tanaka Y, Kobayashi S, Kimura T, Mukai M, Nagao T, Matsuoka H, Tsuboi M. 159P Optimization and validation of a circulating microRNA biomarker panel for early detection of lung cancer in a Japanese population. J Thorac Oncol 2023. [DOI: 10.1016/s1556-0864(23)00413-6] [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: 04/03/2023]
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Yamanashi T, Crutchley KJ, Wahba NE, Nagao T, Marra PS, Akers CC, Sullivan EJ, Iwata M, Howard MA, Cho HR, Kawasaki H, Hughes CG, Pandharipande PP, Hefti MM, Shinozaki G. The genome-wide DNA methylation profiles among neurosurgery patients with and without post-operative delirium. Psychiatry Clin Neurosci 2023; 77:48-55. [PMID: 36266784 PMCID: PMC9812874 DOI: 10.1111/pcn.13495] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 10/11/2022] [Accepted: 10/16/2022] [Indexed: 01/07/2023]
Abstract
AIMS There is no previous study demonstrating the differences of genome-wide DNA methylation (DNAm) profiles between patients with and without postoperative delirium (POD). We aimed to discover epigenetic (DNAm) markers that are associated with POD in blood obtained from patients before and after neurosurgery. METHODS Pre- and post-surgical blood DNA samples from 37 patients, including 10 POD cases, were analyzed using the Illumina EPIC array genome-wide platform. We examined DNAm differences in blood from patients with and without POD. Enrichment analysis with Gene Ontology and Kyoto Encyclopedia of Genes and Genomes terms were also conducted. RESULTS When POD cases were tested for DNAm change before and after surgery, enrichment analyses showed many relevant signals with statistical significance in immune response related-pathways and inflammatory cytokine related-pathways such as "cellular response to cytokine stimulus", "regulation of immune system process", "regulation of cell activation", and "regulation of cytokine production". Furthermore, after excluding the potential effect of common factors related to surgery and anesthesia between POD cases and non-POD controls, the enrichment analyses showed significant signals such as "immune response" and "T cell activation", which are same pathways previously identified from an independent non-surgical inpatient cohort. CONCLUSIONS Our first genome-wide DNAm investigation of POD showed promising signals related to immune response, inflammatory response and other relevant signals considered to be associated with delirium pathophysiology. Our data supports the hypothesis that epigenetics play an important role in the pathophysiological mechanism of delirium and suggest the potential usefulness of an epigenetics-based biomarker of POD.
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Affiliation(s)
- Takehiko Yamanashi
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Palo Alto, California, USA.,Department of Psychiatry, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA.,Department of Neuropsychiatry, Tottori University Faculty of Medicine, Tottori, Japan
| | - Kaitlyn J Crutchley
- Department of Psychiatry, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA.,University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Nadia E Wahba
- Department of Psychiatry, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA
| | - Takaaki Nagao
- Department of Neurosurgery, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA.,Department of Neurosurgery (Sakura), Toho University School of Medicine Faculty of Medicine, Chiba, Japan
| | - Pedro S Marra
- Department of Psychiatry, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA
| | - Cade C Akers
- Department of Psychiatry, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA
| | - Eleanor J Sullivan
- Department of Psychiatry, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA
| | - Masaaki Iwata
- Department of Neuropsychiatry, Tottori University Faculty of Medicine, Tottori, Japan
| | - Mathew A Howard
- Department of Neurosurgery, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA
| | - Hyunkeun R Cho
- College of Public Health, University of Iowa, Iowa City, Iowa, USA
| | - Hiroto Kawasaki
- Department of Neurosurgery, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA
| | - Christopher G Hughes
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Pratik P Pandharipande
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Marco M Hefti
- Department of Pathology, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA
| | - Gen Shinozaki
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Palo Alto, California, USA.,Department of Psychiatry, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA
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Oriyama T, Goto M, Kawahara K, Shibata A, Nagao T. Intraosseous carcinoma of the anterior maxilla identified as the occult primary tumour of carcinoma of unknown primary. Int J Oral Maxillofac Surg 2022; 51:1510-1515. [PMID: 35346543 DOI: 10.1016/j.ijom.2022.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 03/05/2022] [Accepted: 03/09/2022] [Indexed: 10/18/2022]
Abstract
Carcinoma of unknown primary (CUP) is defined as lymph node metastasis without a detectable origin until after the initial treatment has been performed. The most common occult primary site in the head and neck, as revealed by a review of the published literature, is the oropharynx. An occult primary site in the oral region is extremely rare. We report a rare case of head and neck CUP (HNCUP) in a 69-year-old female patient, wherein the occult primary lesion was a primary intraosseous carcinoma (PIOC) invading the anterior maxilla. During the course of the initial diagnostic workup, no primary lesion could be identified; however, cervical lymph node metastasis to left levels IB and IIA were observed in the patient. A neck dissection followed by adjuvant radiotherapy was performed. However, the PIOC of the anterior maxilla was identified 6 months after neck treatment and was confirmed as the occult primary tumour of the HNCUP. This case is quite rare and required a comprehensive workup to guide optimal treatment. Careful follow-up or active biopsy should be considered if osteolytic changes are observed in the jaw.
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Affiliation(s)
- T Oriyama
- Department of Maxillofacial Surgery, School of Dentistry, Aichi Gakuin University, Chikusa-ku, Nagoya, Japan
| | - M Goto
- Department of Maxillofacial Surgery, School of Dentistry, Aichi Gakuin University, Chikusa-ku, Nagoya, Japan.
| | - K Kawahara
- Department of Oral and Maxillofacial Surgery, Gifu Prefectural Tajimi Hospital, Tajimi, Gifu, Japan
| | - A Shibata
- Department of Oral and Maxillofacial Surgery, Gifu Prefectural Tajimi Hospital, Tajimi, Gifu, Japan
| | - T Nagao
- Department of Maxillofacial Surgery, School of Dentistry, Aichi Gakuin University, Chikusa-ku, Nagoya, Japan
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Wahba NE, Nishizawa Y, Marra PS, Yamanashi T, Crutchley KJ, Nagao T, Shibata K, Nishiguchi T, Cho H, Howard MA, Kawasaki H, Hefti M, Kanazawa T, Shinozaki G. Genome-wide DNA methylation analysis of post-operative delirium with brain, blood, saliva, and buccal samples from neurosurgery patients. J Psychiatr Res 2022; 156:245-251. [PMID: 36270064 PMCID: PMC10540238 DOI: 10.1016/j.jpsychires.2022.10.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/30/2022] [Accepted: 10/05/2022] [Indexed: 11/05/2022]
Abstract
OBJECTIVE No previous study demonstrates the difference in the genome-wide DNA methylation status of post-operative delirium (POD) using human brain tissue obtained from neurosurgery and multiple peripheral tissues such as blood, saliva, and buccal samples from the same individuals. We aimed to identify epigenetic marks of DNA methylation in the brain and peripheral tissues to elucidate the potential pathophysiological mechanism of POD. METHODS The four tissue types (brain, blood, saliva, buccal) of DNA samples from up to 40 patients, including 11 POD cases, were analyzed using Illumina EPIC array. DNAm differences between patients with and without POD were examined. We also conducted enrichment analysis based on the top DNAm signals. RESULTS The most different CpG site between control and POD was found at cg16526133 near the ADAMTS9 gene from the brain tissue(p = 8.66E-08). However, there are no CpG sites to reach the genome-wide significant level. The enrichment analysis based on the 1000 top hit CpG site (p < 0.05) on the four tissues showed several intriguing pathways. In the brain, there are pathways including "positive regulation of glial cell differentiation". Blood samples showed also pathways related to immune function. Besides, both saliva and the buccal sample showed pathways related to circadian rhythm, although these findings were not FDR significant. CONCLUSION Enrichment analysis found several intriguing pathways related to potential delirium pathophysiology. Present data may further support the role of epigenetics, especially DNA methylation, in the molecular mechanisms of delirium pathogenesis.
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Affiliation(s)
- Nadia E Wahba
- University of Iowa Carver College of Medicine, Department of Psychiatry, Iowa City, IA, USA; Oregon Health & Science University, School of Medicine, Department of Psychiatry, Portland, OR, USA
| | - Yoshitaka Nishizawa
- Stanford University School of Medicine, Department of Psychiatry and Behavioral Sciences, Palo Alto, CA, USA; Osaka Medical and Pharmaceutical University, Faculty of Medicine, Department of Neuropsychiatry, Takatsuki, Osaka, Japan
| | - Pedro S Marra
- University of Iowa Carver College of Medicine, Department of Psychiatry, Iowa City, IA, USA
| | - Takehiko Yamanashi
- University of Iowa Carver College of Medicine, Department of Psychiatry, Iowa City, IA, USA; Stanford University School of Medicine, Department of Psychiatry and Behavioral Sciences, Palo Alto, CA, USA; Tottori University Faculty of Medicine, Department of Neuropsychiatry, Yonago, Tottori, Japan
| | - Kaitlyn J Crutchley
- University of Iowa Carver College of Medicine, Department of Psychiatry, Iowa City, IA, USA; University of Nebraska Medical Center, College of Medicine, Omaha, NE, USA
| | - Takaaki Nagao
- Toho University School of Medicine Faculty of Medicine, Department of Neurosurgery (Sakura), Sakura-shi, Chiba, Japan
| | - Kazuki Shibata
- Stanford University School of Medicine, Department of Psychiatry and Behavioral Sciences, Palo Alto, CA, USA; Sumitomo Pharma Co. Ltd, Osaka, Osaka, Japan
| | - Tsuyoshi Nishiguchi
- Stanford University School of Medicine, Department of Psychiatry and Behavioral Sciences, Palo Alto, CA, USA; Tottori University Faculty of Medicine, Department of Neuropsychiatry, Yonago, Tottori, Japan
| | - Hyunkeun Cho
- University of Iowa College of Public Health, Department of Biostatistics, Iowa City, IA, USA
| | - Mathew A Howard
- University of Iowa Carver College of Medicine, Department of Neurosurgery, Iowa City, IA, USA
| | - Hiroto Kawasaki
- University of Iowa Carver College of Medicine, Department of Neurosurgery, Iowa City, IA, USA
| | - Marco Hefti
- University of Iowa Carver College of Medicine, Department of Pathology, Iowa City, IA, USA
| | - Tetsufumi Kanazawa
- Osaka Medical and Pharmaceutical University, Faculty of Medicine, Department of Neuropsychiatry, Takatsuki, Osaka, Japan
| | - Gen Shinozaki
- University of Iowa Carver College of Medicine, Department of Psychiatry, Iowa City, IA, USA; Stanford University School of Medicine, Department of Psychiatry and Behavioral Sciences, Palo Alto, CA, USA.
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Sakakibara R, Iimura A, Ogata T, Terayama K, Katsuragawa S, Nagao T, Suzuki K, Izawa K, Nakajima K, Haruki SI, Tateno F, Aiba Y, Nemoto M, Nakagawa K. Brain Diseases and Fall-Related Surgery in Older Persons. Eur Neurol 2022; 85:260-264. [PMID: 35158356 DOI: 10.1159/000521807] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 11/24/2021] [Indexed: 11/19/2022]
Abstract
BACKGROUND It is known that age-related brain symptoms (gait difficulty and dementia) increase the likelihood of fall-related surgery. In contrast, it is not known which types of brain disease underlie such symptoms most. OBJECTIVE The aim of this study was to correlate brain diseases with the types of surgeries performed at our hospital for patients who had fallen. METHODS This was a retrospective study at a multifaculty university hospital in Japan, with a 12-month recruiting period, a follow-up period of 3.0 ± 2.5 weeks, and ≥1×/week visits. We assembled a neurogeriatric team to diagnose brain diseases with the use of brain imaging to the extent possible and correlated the diagnoses with types of fall-related surgery. RESULTS Fall-related surgery was conducted by the orthopedics (OP) and neurosurgery (NS) faculties (total n = 124) at a ratio of about 2 to 1. The underlying brain diseases differed by faculty; for OP, surgery was most commonly performed in patients with a combination of white matter disease (WMD) and Alzheimer's disease (AD) (79%) followed by dementia with Lewy bodies. In contrast, for NS, the most common surgery was for patients with alcoholism (50%) followed by a combination of WMD and AD. CONCLUSION Fall-related surgery was performed by the OP and NS faculties at a 2 to 1 ratio. The major underlying brain diseases were a combination of WMD and AD (79%) for OP and alcoholism (50%) for NS.
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Affiliation(s)
- Ryuji Sakakibara
- Neurogeriatric Team, Sakura Medical Center, Toho University, Sakura, Japan
| | - Ayako Iimura
- Neurogeriatric Team, Sakura Medical Center, Toho University, Sakura, Japan
| | - Tsuyoshi Ogata
- Neurogeriatric Team, Sakura Medical Center, Toho University, Sakura, Japan
| | - Keiichiro Terayama
- Neurogeriatric Team, Sakura Medical Center, Toho University, Sakura, Japan
| | | | - Takaaki Nagao
- Neurogeriatric Team, Sakura Medical Center, Toho University, Sakura, Japan
| | - Keiko Suzuki
- Neurogeriatric Team, Sakura Medical Center, Toho University, Sakura, Japan
| | - Kaori Izawa
- Neurogeriatric Team, Sakura Medical Center, Toho University, Sakura, Japan
| | - Kiwa Nakajima
- Neurogeriatric Team, Sakura Medical Center, Toho University, Sakura, Japan
| | - Shin-Ichi Haruki
- Neurogeriatric Team, Sakura Medical Center, Toho University, Sakura, Japan
| | - Fuyuki Tateno
- Neurogeriatric Team, Sakura Medical Center, Toho University, Sakura, Japan
| | - Yosuke Aiba
- Neurogeriatric Team, Sakura Medical Center, Toho University, Sakura, Japan
| | - Masaaki Nemoto
- Neurogeriatric Team, Sakura Medical Center, Toho University, Sakura, Japan
| | - Koichi Nakagawa
- Orthopedic Surgery, Sakura Medical Center, Toho University, Sakura, Japan
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Yamanashi T, Nagao T, Wahba NE, Marra PS, Crutchley KJ, Meyer AA, Andreasen AJ, Hellman MM, Jellison SS, Hughes CG, Pandharipande PP, Howard, III MA, Kawasaki H, Iwata M, Hefti MM, Shinozaki G. DNA methylation in the inflammatory genes after neurosurgery and diagnostic ability of post-operative delirium. Transl Psychiatry 2021; 11:627. [PMID: 34887385 PMCID: PMC8660911 DOI: 10.1038/s41398-021-01752-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 11/18/2021] [Accepted: 11/29/2021] [Indexed: 11/09/2022] Open
Abstract
The pathophysiological mechanisms of postoperative delirium (POD) are still not clear, and no reliable biomarker is available to differentiate those with and without POD. Pre- and post-surgery blood from epilepsy subjects undergoing neurosurgery were collected. DNA methylation (DNAm) levels of the TNF gene, IL1B gene, and IL6 gene by the Illumina EPIC array method, and DNAm levels of the TNF gene by pyrosequencing, were analyzed. Blood from 37 subjects were analyzed by the EPIC array method, and blood from 27 subjects were analyzed by pyrosequencing. Several CpGs in the TNF gene in preoperative blood showed a negative correlation between their DNAm and age both in the POD group and in the non-POD group. However, these negative correlations were observed only in the POD group after neurosurgery. Neurosurgery significantly altered DNAm levels at 17 out of 24 CpG sites on the TNF gene, 8 out of 14 CpG sites on the IL1B gene, and 4 out of 14 CpG sites on the IL6 gene. Furthermore, it was found that the Inflammatory Methylation Index (IMI), which was based on the post-surgery DNAm levels at the selected five CpG sites, can be a potential detection tool for delirium with moderate accuracy; area under the curve (AUC) value was 0.84. The moderate accuracy of this IMI was replicated using another cohort from our previous study, in which the AUC was 0.79. Our findings provide further evidence of the potential role of epigenetics and inflammation in the pathophysiology of delirium.
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Affiliation(s)
- Takehiko Yamanashi
- Stanford University School of Medicine, Department of Psychiatry and Behavioral Sciences, Palo Alto, CA, USA. .,University of Iowa Carver College of Medicine, Department of Psychiatry, Iowa City, IA, USA. .,Tottori University Faculty of Medicine, Department of Neuropsychiatry, Yonago-shi, Tottori, Japan.
| | - Takaaki Nagao
- grid.214572.70000 0004 1936 8294University of Iowa Carver College of Medicine, Department of Neurosurgery, Iowa City, IA USA ,grid.265050.40000 0000 9290 9879Toho University School of Medicine Faculty of Medicine, Department of Neurosurgery (Sakura), Sakura-shi, Chiba Japan
| | - Nadia E. Wahba
- grid.214572.70000 0004 1936 8294University of Iowa Carver College of Medicine, Department of Psychiatry, Iowa City, IA USA
| | - Pedro S. Marra
- grid.214572.70000 0004 1936 8294University of Iowa Carver College of Medicine, Department of Psychiatry, Iowa City, IA USA
| | - Kaitlyn J. Crutchley
- grid.214572.70000 0004 1936 8294University of Iowa Carver College of Medicine, Department of Psychiatry, Iowa City, IA USA
| | - Alissa A. Meyer
- grid.214572.70000 0004 1936 8294University of Iowa Carver College of Medicine, Department of Psychiatry, Iowa City, IA USA
| | - Ally J. Andreasen
- grid.214572.70000 0004 1936 8294University of Iowa Carver College of Medicine, Department of Psychiatry, Iowa City, IA USA
| | - Mandy M. Hellman
- grid.214572.70000 0004 1936 8294University of Iowa Carver College of Medicine, Department of Psychiatry, Iowa City, IA USA
| | - Sydney S. Jellison
- grid.214572.70000 0004 1936 8294University of Iowa Carver College of Medicine, Department of Psychiatry, Iowa City, IA USA
| | - Christopher G. Hughes
- grid.412807.80000 0004 1936 9916Vanderbilt University Medical Center, Department of anesthesiology, Nashville, TN USA
| | - Pratik P. Pandharipande
- grid.412807.80000 0004 1936 9916Vanderbilt University Medical Center, Department of anesthesiology, Nashville, TN USA
| | - Matthew A. Howard, III
- grid.214572.70000 0004 1936 8294University of Iowa Carver College of Medicine, Department of Neurosurgery, Iowa City, IA USA
| | - Hiroto Kawasaki
- grid.214572.70000 0004 1936 8294University of Iowa Carver College of Medicine, Department of Neurosurgery, Iowa City, IA USA
| | - Masaaki Iwata
- grid.265107.70000 0001 0663 5064Tottori University Faculty of Medicine, Department of Neuropsychiatry, Yonago-shi, Tottori Japan
| | - Marco M. Hefti
- grid.214572.70000 0004 1936 8294University of Iowa Carver College of Medicine, Department of Pathology, Iowa City, IA USA
| | - Gen Shinozaki
- Stanford University School of Medicine, Department of Psychiatry and Behavioral Sciences, Palo Alto, CA, USA. .,University of Iowa Carver College of Medicine, Department of Psychiatry, Iowa City, IA, USA.
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Aoki Y, Hasegawa S, Miyabe S, Nagao T. Spontaneous regression of malignant lymphoma of the maxillary gingiva following biopsy. Int J Oral Maxillofac Surg 2021; 51:1145-1148. [PMID: 34561111 DOI: 10.1016/j.ijom.2021.09.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 07/07/2021] [Accepted: 09/07/2021] [Indexed: 11/26/2022]
Abstract
A case of spontaneous regression of malignant lymphoma of the maxillary gingiva following a biopsy is reported. An 84-year-old man was referred to the hospital with chief complaints of swelling of the anterior maxillary gingiva. A non-tender swelling with an ulcer was observed. There was no abnormal bone resorption in the anterior maxillary region and no swelling of the cervical lymph nodes. A biopsy was performed, and the patient was diagnosed with diffuse large B-cell lymphoma. The lesion regressed spontaneously 3 weeks after the initial biopsy. Two years have passed since the spontaneous regression and no recurrence has been observed. If malignant lymphoma regresses on biopsy, observation is considered to be sufficient.
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Affiliation(s)
- Y Aoki
- Department of Maxillofacial Surgery, School of Dentistry, Aichi-Gakuin University, Aichi, Japan
| | - S Hasegawa
- Department of Maxillofacial Surgery, School of Dentistry, Aichi-Gakuin University, Aichi, Japan; Department of Oral and Maxillofacial Surgery, Toyota Wakatake Hospital, Aichi, Japan.
| | - S Miyabe
- Department of Maxillofacial Surgery, School of Dentistry, Aichi-Gakuin University, Aichi, Japan
| | - T Nagao
- Department of Maxillofacial Surgery, School of Dentistry, Aichi-Gakuin University, Aichi, Japan
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11
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Kimura M, Kato I, Ishibashi K, Umemura M, Nagao T. Texture analysis of PET images for predicting response to induction chemotherapy for oral squamous cell carcinoma. Advances in Oral and Maxillofacial Surgery 2021. [DOI: 10.1016/j.adoms.2021.100145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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12
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Takahashi H, Kawakita D, Fushimi C, Nagao T, Hirai H, Saigusa N, Masubuchi T, Matsuki T, Okada T, Baba D, Miura K, Saotome T, Tada Y. Trastuzumab plus docetaxel in patients with advanced HER2-positive salivary duct carcinoma: Exploratory biomarker analyses. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz252.060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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13
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Fushimi C, Kawakita D, Takahashi H, Nagao T, Hirai H, Saigusa N, Masubuchi T, Matsuki T, Okada T, Baba D, Miura K, Saotome T, Tada Y. Combined androgen blockade in patients with advanced androgen receptor-positive salivary gland carcinoma: Exploratory biomarker analyses. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz252.058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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14
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Nagao T, Yasunishi K, Kumagai H, Kodani E, Kimura K. Correlation between warfarin control and daily vitamin K intake: The difference among VKORC1 genotype. J Neurol Sci 2019. [DOI: 10.1016/j.jns.2019.10.529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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15
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Adachi T, Abe T, Mizuno T, Iida Y, Yamada T, Uchiyama S, Nishi M, Nagao T, Sakamoto K, Ito T, Fujimoto N, Kobayashi K, Okumura T, Yamada S. P3196Anorexia coexisted in frailty predicts 1-year prognosis in patients with heart failure: a multicenter prospective cohort study. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- T Adachi
- Nagoya University Graduate School of Medicine, Department of Rehabilitation, Nagoya, Japan
| | - T Abe
- Aichi Medical University Hospital, Department of Rehabilitation, Nagakute, Japan
| | - T Mizuno
- Aichi Medical University Hospital, Department of Cardiology, Nagakute, Japan
| | - Y Iida
- Kainan Hospital, Department of Rehabilitation, Yatomi, Japan
| | - T Yamada
- Kainan Hospital, Department of Cardiology, Yatomi, Japan
| | - S Uchiyama
- New Tokyo hospital, Department of Rehabilitation, Matsudo, Japan
| | - M Nishi
- New Tokyo hospital, Department of Rehabilitation, Matsudo, Japan
| | - T Nagao
- Hoshi General Hospital, Department of Rehabilitation, Koriyama, Japan
| | - K Sakamoto
- Hoshi General Hospital, Department of Cardiology, Koriyama, Japan
| | - T Ito
- Mie University Hospital, Department of Rehabilitation, Tsu, Japan
| | - N Fujimoto
- Mie University Graduate School of Medicine, Department of Cardiology, Tsu, Japan
| | - K Kobayashi
- Nagoya University Hospital, Department of Rehabilitation, Nagoya, Japan
| | - T Okumura
- Nagoya University Hospital, Department of Cardiology, Nagoya, Japan
| | - S Yamada
- Nagoya University, Department of Health Sciences, Nagoya, Japan
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16
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Affiliation(s)
- H Inaba
- Department of Clinical Pathology, Tokyo Medical College, Tokyo, Japan
| | | | - S Yoshida
- Department of Clinical Pathology, Tokyo Medical College, Tokyo, Japan
| | - T Hagiwara
- Department of Clinical Pathology, Tokyo Medical College, Tokyo, Japan
| | - H Hanabusa
- Department of Pediatrics, Ogikubo Hospital, Tokyo, Japan
| | - T Nagao
- Department of Hematology, Kanagawa Children’s Medical Center, Kanagawa, Japan
| | - K Fukutake
- Department of Clinical Pathology, Tokyo Medical College, Tokyo, Japan
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17
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Ohta Y, Norose T, Ohike N, Takiguchi S, Murayama M, Kobayashi S, Shiokawa A, Nagao T. A case of secretory carcinoma of the parotid gland provides cytological clues for the differential diagnosis of this disease. Cytopathology 2018; 29:375-379. [PMID: 29656485 DOI: 10.1111/cyt.12548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/05/2018] [Indexed: 10/17/2022]
Affiliation(s)
- Y Ohta
- Department of Pathology, Showa University Fujigaoka Hospital, Kanagawa, Japan
| | - T Norose
- Department of Pathology, Showa University Fujigaoka Hospital, Kanagawa, Japan
| | - N Ohike
- Department of Pathology, Showa University Fujigaoka Hospital, Kanagawa, Japan
| | - S Takiguchi
- Department of Otolaryngology, Showa University Fujigaoka Hospital, Kanagawa, Japan
| | - M Murayama
- Department of Otolaryngology, Showa University Fujigaoka Hospital, Kanagawa, Japan
| | - S Kobayashi
- Department of Otolaryngology, Showa University Fujigaoka Hospital, Kanagawa, Japan
| | - A Shiokawa
- Department of Pathology, Showa University School of Medicine, Tokyo, Japan
| | - T Nagao
- Department of Anatomic Pathology, Tokyo Medical University, Tokyo, Japan
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18
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Fushimi C, Tada Y, Takahashi H, Nagao T, Ojiri H, Masubuchi T, Matsuki T, Miura K, Kawakita D, Hirai H, Hoshino E, Kamata S, Saotome T. A prospective phase II study of combined androgen blockade in patients with androgen receptor-positive metastatic or locally advanced unresectable salivary gland carcinoma. Ann Oncol 2018; 29:979-984. [PMID: 29211833 PMCID: PMC5913639 DOI: 10.1093/annonc/mdx771] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [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: 12/28/2022] Open
Abstract
Background There is no standard first-line chemotherapy for recurrent/metastatic (RM) or unresectable locally advanced (LA) salivary gland carcinoma (SGC). Patients and methods We conducted a single institution, open-label, single arm, phase II trial of combined androgen blockade (CAB) for androgen receptor (AR)-positive SGC. Leuprorelin acetate was administered subcutaneously at a dose of 3.75 mg every 4 weeks. Bicalutamide was administered orally at a daily dose of 80 mg. Patients were treated until progressive disease or unacceptable toxicities. Results Thirty-six eligible patients were enrolled. Thirty-three patients had RM disease and three patients had LA disease. The pathological diagnoses were salivary duct carcinoma (34 patients, 94%) and adenocarcinoma, NOS (two patients, 6%). The best overall response rate was 41.7% [n = 15, 95% confidence interval (CI), 25.5%-59.2%], the clinical benefit rate was 75.0% (n = 27, 95% CI, 57.8%-87.9%). The median progression-free survival was 8.8 months (95% CI, 6.3-12.3 months) and the median overall survival was 30.5 months (95% CI, 16.8 months to not reached). Additional analyses between treatment outcomes and clinicopathological factors or biomarkers including AR positivity, human epidermal growth factor receptor 2 status, and its complex downstream signaling pathway gene mutations showed no statistically significant differences. Elevated grade 3 liver transaminases and increased serum creatinine were reported in two patients, respectively. Discontinuation of leuprorelin acetate or bicalutamide due to adverse event occurred in one patient. Conclusion This study suggests that CAB has equivalent efficacy and less toxicity for patients with AR-positive RM or unresectable LA SGC compared with conventional chemotherapy, which warrants further study. Clinical Trial Registration UMIN-CTR (http://www.umin.ac.jp/ctr/index-j.htm), identification number: UMIN000005703.
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Affiliation(s)
- C Fushimi
- Department of Head and Neck Oncology and Surgery, International University of Health and Welfare Mita Hospital, Tokyo, Japan
| | - Y Tada
- Department of Head and Neck Oncology and Surgery, International University of Health and Welfare Mita Hospital, Tokyo, Japan.
| | - H Takahashi
- Department of Head and Neck Oncology and Surgery, International University of Health and Welfare Mita Hospital, Tokyo, Japan
| | - T Nagao
- Department of Anatomic Pathology, Tokyo Medical University School of Medicine, Tokyo, Japan
| | - H Ojiri
- Department of Radiology, The Jikei University School of Medicine, Tokyo, Japan
| | - T Masubuchi
- Department of Head and Neck Oncology and Surgery, International University of Health and Welfare Mita Hospital, Tokyo, Japan
| | - T Matsuki
- Department of Head and Neck Oncology and Surgery, International University of Health and Welfare Mita Hospital, Tokyo, Japan
| | - K Miura
- Department of Head and Neck Oncology and Surgery, International University of Health and Welfare Mita Hospital, Tokyo, Japan
| | - D Kawakita
- Department of Otorhinolaryngology, Head and Neck Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - H Hirai
- Department of Anatomic Pathology, Tokyo Medical University School of Medicine, Tokyo, Japan
| | - E Hoshino
- Support Unit for Conducting Clinically Essential Studies, Graduate School of Public Health, St Luke's International University, Tokyo, Japan
| | - S Kamata
- Department of Head and Neck Oncology and Surgery, International University of Health and Welfare Mita Hospital, Tokyo, Japan
| | - T Saotome
- Division of Medical Oncology, Matsudo City Hospital, Chiba, Japan
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19
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Kakihana M, Maeda J, Matsubayashi J, Maehara S, Hagiwara M, Okano T, Kajiwara N, Ohira T, Nagao T, Ikeda N. P1.01-041 Role of Re-Biopsy During Disease Progression Non-Small Cell Lung Cancer for Acquired Resistance Analysis and Directing Oncology Treatments. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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20
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Ohira T, Matsubayashi J, Maehara S, Maeda J, Yoshida K, Hagiwara M, Kakihana M, Okano T, Kajiwara N, Nagao T, Ikeda N. P3.02-012 Liquid Based Cytology (LBC) Specimens Were Useful for EGFR Mutation Test. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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21
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Shigefuku S, Kudo Y, Yunaiyama D, Matsubayashi J, Park J, Nagao T, Shimada Y, Hagiwara M, Saji H, Okano T, Kakihana M, Kajiwara N, Ohira T, Ikeda N. P2.05-012 Prognostic Factors for Surgically Resected Non-Small Cell Lung Cancer with Cavity Formation. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.11.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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22
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Noda K, Sagara J, Tanemura R, Nagao T, Hoshii J, Uchida T, Nakata O, Sunagawa K. NEW CONCEPT FOR SUPPORTING THE ELDERS HAVING GARBAGE TROUBLES. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- K. Noda
- Kobe University, Kobe, Hyogo, Japan,
| | - J. Sagara
- Kobe Design University, Kobe, Hyogo, Japan
| | | | - T. Nagao
- Kobe University, Kobe, Hyogo, Japan,
| | - J. Hoshii
- Kobe University, Kobe, Hyogo, Japan,
| | - T. Uchida
- Kobe University, Kobe, Hyogo, Japan,
| | - O. Nakata
- Kobe University, Kobe, Hyogo, Japan,
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23
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Maehana W, Nagao T. SU-F-J-28: Development of a New Imaging Filter to Remove the Shadows From the Carbon Fiber Grid Table Top. Med Phys 2016. [DOI: 10.1118/1.4955936] [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: 11/07/2022] Open
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24
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Yamaoka H, Nakayama-Imaohji H, Horiuchi I, Yamasaki H, Nagao T, Fujita Y, Maeda H, Goda H, Kuwahara T. Tetramethylbenzidine method for monitoring the free available chlorine and microbicidal activity of chlorite-based sanitizers under organic-matter-rich environments. Lett Appl Microbiol 2015; 62:47-54. [DOI: 10.1111/lam.12506] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 09/25/2015] [Accepted: 10/05/2015] [Indexed: 11/27/2022]
Affiliation(s)
- H. Yamaoka
- Department of Microbiology; Faculty of Medicine; Kagawa University; Kagawa Japan
- Honbu Sankei Co. Ltd.; Chuou-ku Osaka Japan
| | - H. Nakayama-Imaohji
- Department of Microbiology; Faculty of Medicine; Kagawa University; Kagawa Japan
| | - I. Horiuchi
- Department of Microbiology; Faculty of Medicine; Kagawa University; Kagawa Japan
- Honbu Sankei Co. Ltd.; Chuou-ku Osaka Japan
| | - H. Yamasaki
- Department of Cellular and Molecular Medicine; Wakayama Medical University Graduate School of Medicine; Wakayama Japan
| | - T. Nagao
- Faculty of Nursing; Shikoku University; Tokushima Japan
| | - Y. Fujita
- Honbu Sankei Co. Ltd.; Chuou-ku Osaka Japan
| | - H. Maeda
- Faculty of Fisheries; Kagoshima University; Kagoshima-shi Kagoshima Japan
| | - H. Goda
- Honbu Sankei Co. Ltd.; Chuou-ku Osaka Japan
| | - T. Kuwahara
- Department of Microbiology; Faculty of Medicine; Kagawa University; Kagawa Japan
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25
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Nagao T, Oshikawa G, Ishida S, Akiyama H, Umezawa Y, Nogami A, Kurosu T, Miura O. A novel MYD88 mutation, L265RPP, in Waldenström macroglobulinemia activates the NF-κB pathway to upregulate Bcl-xL expression and enhances cell survival. Blood Cancer J 2015; 5:e314. [PMID: 25978434 PMCID: PMC4476015 DOI: 10.1038/bcj.2015.36] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Affiliation(s)
- T Nagao
- Department of Hematology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - G Oshikawa
- Department of Hematology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - S Ishida
- Department of Hematology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - H Akiyama
- Department of Hematology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Y Umezawa
- Department of Hematology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - A Nogami
- Department of Hematology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - T Kurosu
- Department of Hematology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - O Miura
- Department of Hematology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
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Kitajima K, Kamimura O, Nagao T, Takahashi I, Hiraki K. Neocarzinostatin: a new agent active in the treatment of acute leukemia. Bibl Haematol 2015:751-2. [PMID: 126059 DOI: 10.1159/000397597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Nagao T, Miyazaki C, Ando S, Haga D, Kuroki T, Sugo N, Nagao T. [Infected subdural hematoma having a surgery of chronic subdural hematoma 1 year ago:a case report]. No Shinkei Geka 2015; 43:153-7. [PMID: 25672558 DOI: 10.11477/mf.1436202974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
We report a case of an infected subdural hematoma that occurred 1 year after burr-hole irrigation for chronic subdural hematoma. A 78-year-old woman who had developed left hemiparesis was admitted to our hospital. A computed tomography(CT)scan revealed the presence of a chronic subdural hematoma in the right hemisphere. Her clinical symptoms improved immediately after emergency burr-hole irrigation, which allowed her discharge from the hospital. One year after the initial surgery, she developed an infection of the urinary tract infection, which led to severe pyelonephritis and septic shock. Treatment of the urological symptoms eliminated the systemic inflammation. One month after the urinary infection, the patient was readmitted to the hospital in a comatose state. A CT scan showed regrowth of a residual subdural hematoma surrounded by a thick capsule, causing a midline shift in the brain. An emergency operation for removal of the subdural hematoma by burr-hole irrigation was performed, and pus was drained from the subdural mass. Microbiological cultures of the abscess revealed the presence of Proteus mirabilis. After surgery, the patient was administered an antibiotic treatment for three weeks and she was discharged with no neurological deficits. Cultures of blood from the septic shock as well as from the abscess both revealed the presence of Proteus mirabilis. Therefore, a diagnosis of infected subdural hematoma, which was caused by hematogenous infection, was made. We conclude that attention should be paid to the risk of infection of the hematoma capsule in subdural hematomas.
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Affiliation(s)
- Takaaki Nagao
- Department of Neurosurgery(Omori), School of Medicine, Faculty of Medicine, Toho University
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28
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Toyota H, Sudo K, Kojima K, Yanase N, Nagao T, Takahashi RH, Iobe H, Kuwabara T, Kakiuchi T, Mizuguchi J. Thy28 protects against anti-CD3-mediated thymic cell death in vivo. Apoptosis 2014; 20:444-54. [PMID: 25547913 DOI: 10.1007/s10495-014-1082-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Apoptotic cell death plays a pivotal role in the development and/or maintenance of several tissues including thymus. Deregulated thymic cell death is associated with autoimmune diseases including experimental autoimmune encephalomyelitis (EAE), a prototype murine model for analysis of human multiple sclerosis. Because Thy28 expression is modulated during thymocyte development, we tested whether Thy28 affects induction of EAE as effectively as antigen-induced thymocyte deletion using Thy28 transgenic (TG) mice. Thy28 TG mice showed partial resistance to anti-CD3 monoclonal antibody (mAb)-induced thymic cell death in vivo, as assessed by annexin V-expression and loss of mitochondrial membrane potential. The resistance to anti-CD3 mAb-induced cell death in Thy28 TG mice appeared to correlate with a decreased c-Jun N-terminal kinase phosphorylation and reduced down-regulation of Bcl-xL. Moreover, thymic hyperplasia was detected in Thy28 TG mice, although thymocyte development was unaltered. Development of peripheral lymphoid tissues including spleen and lymph nodes was also unaltered. Thy28 TG spleen T cells showed an increased production of IFN-γ, but not IL-17, in response to both anti-CD3 and anti-CD28 mAbs. Finally, Thy28 TG mice displayed accelerated induction of EAE as assessed by disease incidence, clinical score, and pathology following immunization with myelin oligodendrocyte glycoprotein compared with control WT mice. These findings suggest that modulation of Thy28 expression plays a crucial role in the determination of thymic cell fate, which may contribute to the development of EAE through proinflammatory cytokine production.
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Affiliation(s)
- H Toyota
- Department of Immunology and Intractable Immunology Research Center, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan,
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29
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Haradome K, Haradome H, Usui Y, Ueda S, Kwee TC, Saito K, Tokuuye K, Matsubayashi J, Nagao T, Goto H. Orbital lymphoproliferative disorders (OLPDs): value of MR imaging for differentiating orbital lymphoma from benign OPLDs. AJNR Am J Neuroradiol 2014; 35:1976-82. [PMID: 24874530 PMCID: PMC7966261 DOI: 10.3174/ajnr.a3986] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [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: 12/18/2022]
Abstract
BACKGROUND AND PURPOSE Accurate discrimination of orbital lymphoma from benign orbital lymphoproliferative disorders is crucial for treatment planning. We evaluated MR imaging including DWI and contrast-enhanced MR imaging for differentiating orbital lymphoma from benign orbital lymphoproliferative disorders. MATERIALS AND METHODS Forty-seven histopathologically proved orbital lymphoproliferative disorders (29 orbital lymphomas and 18 benign orbital lymphoproliferative disorders) were evaluated. Two board-certified radiologists reviewed visual features on T1-weighted, fat-suppressed T2-weighted, diffusion-weighted, and contrast-enhanced MR images. For quantitative evaluation, ADC and contrast-enhancement ratio of all lesions were measured and optimal cutoff thresholds and areas under curves for differentiating orbital lymphoma from benign orbital lymphoproliferative disorders were determined using receiver operative characteristic analysis; corresponding sensitivities and specificities were calculated. RESULTS Multivariate logistic regression analysis showed that ill-defined tumor margin (P = .003) had a significant association with orbital lymphoma whereas the "flow void sign" (P = .005) and radiologic evidence of sinusitis (P = .0002) were associated with benign orbital lymphoproliferative disorders. The mean ADC and contrast-enhancement ratio of orbital lymphomas were significantly lower than those of benign orbital lymphoproliferative disorders (P < .01). An ADC of less than 0.612 × 10(-3) mm(2)/s and a contrast-enhancement ratio of less than 1.88 yielded areas under curves of 0.980 and 0.770, sensitivity of 94.1% and 95.5%, and specificities of 93.3% and 80.0% for predicting orbital lymphoma, respectively. CONCLUSIONS Some characteristic MR imaging features and quantitative DWI and contrast-enhanced MR imaging are useful in further improving the accuracy of MR imaging for differentiation of orbital lymphoma from benign orbital lymphoproliferative disorders.
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Affiliation(s)
- K Haradome
- From the Departments of Ophthalmology (K.H., Y.U., S.U., H.G.)
| | - H Haradome
- Department of Radiology (H.H.), Nihon University School of Medicine, Tokyo, Japan
| | - Y Usui
- From the Departments of Ophthalmology (K.H., Y.U., S.U., H.G.)
| | - S Ueda
- From the Departments of Ophthalmology (K.H., Y.U., S.U., H.G.)
| | - T C Kwee
- Department of Radiology (T.C.K.), University Medical Center Utrecht, Utrecht, the Netherlands
| | | | | | - J Matsubayashi
- Anatomic Pathology (J.M., T.N.), Tokyo Medical University, Tokyo, Japan
| | - T Nagao
- Anatomic Pathology (J.M., T.N.), Tokyo Medical University, Tokyo, Japan
| | - H Goto
- From the Departments of Ophthalmology (K.H., Y.U., S.U., H.G.)
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30
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Kamiya N, Kuroyanagi N, Miyachi H, Fujii H, Yamamoto S, Nagao T, Shimozato K. The evaluation of clinical and anatomical characteristics for the development of neurosensory disturbance after sagittal split-ramus osteotomy. J Oral Maxillofac Surg 2014. [DOI: 10.1016/j.joms.2014.06.255] [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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31
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Kuroyanagi N, Miyachi H, Kamiya N, Nagao T, Shimozato K. Morphological features of the mandibular ramus associated with increased blood loss in sagittal split-ramus osteotomy. J Oral Maxillofac Surg 2014. [DOI: 10.1016/j.joms.2014.06.242] [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: 11/27/2022]
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Trung DD, Hoa ND, Tong PV, Duy NV, Dao TD, Chung HV, Nagao T, Hieu NV. Effective decoration of Pd nanoparticles on the surface of SnO2 nanowires for enhancement of CO gas-sensing performance. J Hazard Mater 2014; 265:124-132. [PMID: 24355775 DOI: 10.1016/j.jhazmat.2013.11.054] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Revised: 10/18/2013] [Accepted: 11/24/2013] [Indexed: 06/03/2023]
Abstract
Decoration of noble metal nanoparticles (NPs) on the surface of semiconducting metal oxide nanowires (NWs) to enhance material characteristics, functionalization, and sensing abilities has attracted increasing interests from researchers worldwide. In this study, we introduce an effective method for the decoration of Pd NPs on the surface of SnO2 NWs to enhance CO gas-sensing performance. Single-crystal SnO2 NWs were fabricated by chemical vapor deposition, whereas Pd NPs were decorated on the surface of SnO2 NWs by in situ reduction of the Pd complex at room temperature without using any linker or reduction agent excepting the copolymer P123. The materials were characterized by advanced techniques, such as high-resolution transmission electron microscopy, scanning transmission electron microscopy, and energy-dispersive X-ray spectroscopy. The Pd NPs were effectively decorated on the surface of SnO2 NWs. As an example, the CO sensing characteristics of SnO2 NWs decorated with Pd NPs were investigated at different temperatures. Results revealed that the gas sensor exhibited excellent sensing performance to CO at low concentration (1-25ppm) with ultrafast response-recovery time (in seconds), high responsivity, good stability, and reproducibility.
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Affiliation(s)
- Do Dang Trung
- International Training Institute for Materials Science, Hanoi University of Science and Technology, No. 1 Dai Co Viet Road, Hanoi, Viet Nam
| | - Nguyen Duc Hoa
- International Training Institute for Materials Science, Hanoi University of Science and Technology, No. 1 Dai Co Viet Road, Hanoi, Viet Nam.
| | - Pham Van Tong
- International Training Institute for Materials Science, Hanoi University of Science and Technology, No. 1 Dai Co Viet Road, Hanoi, Viet Nam
| | - Nguyen Van Duy
- International Training Institute for Materials Science, Hanoi University of Science and Technology, No. 1 Dai Co Viet Road, Hanoi, Viet Nam
| | - T D Dao
- National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan
| | - H V Chung
- National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan
| | - T Nagao
- National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan
| | - Nguyen Van Hieu
- International Training Institute for Materials Science, Hanoi University of Science and Technology, No. 1 Dai Co Viet Road, Hanoi, Viet Nam.
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Trung DD, Hoa ND, Tong PV, Duy NV, Dao TD, Chung HV, Nagao T, Hieu NV. Effective decoration of Pd nanoparticles on the surface of SnO2 nanowires for enhancement of CO gas-sensing performance. J Hazard Mater 2014. [PMID: 24355775 DOI: 10.1016/j.jhazmat.201311054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Decoration of noble metal nanoparticles (NPs) on the surface of semiconducting metal oxide nanowires (NWs) to enhance material characteristics, functionalization, and sensing abilities has attracted increasing interests from researchers worldwide. In this study, we introduce an effective method for the decoration of Pd NPs on the surface of SnO2 NWs to enhance CO gas-sensing performance. Single-crystal SnO2 NWs were fabricated by chemical vapor deposition, whereas Pd NPs were decorated on the surface of SnO2 NWs by in situ reduction of the Pd complex at room temperature without using any linker or reduction agent excepting the copolymer P123. The materials were characterized by advanced techniques, such as high-resolution transmission electron microscopy, scanning transmission electron microscopy, and energy-dispersive X-ray spectroscopy. The Pd NPs were effectively decorated on the surface of SnO2 NWs. As an example, the CO sensing characteristics of SnO2 NWs decorated with Pd NPs were investigated at different temperatures. Results revealed that the gas sensor exhibited excellent sensing performance to CO at low concentration (1-25ppm) with ultrafast response-recovery time (in seconds), high responsivity, good stability, and reproducibility.
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Affiliation(s)
- Do Dang Trung
- International Training Institute for Materials Science, Hanoi University of Science and Technology, No. 1 Dai Co Viet Road, Hanoi, Viet Nam
| | - Nguyen Duc Hoa
- International Training Institute for Materials Science, Hanoi University of Science and Technology, No. 1 Dai Co Viet Road, Hanoi, Viet Nam.
| | - Pham Van Tong
- International Training Institute for Materials Science, Hanoi University of Science and Technology, No. 1 Dai Co Viet Road, Hanoi, Viet Nam
| | - Nguyen Van Duy
- International Training Institute for Materials Science, Hanoi University of Science and Technology, No. 1 Dai Co Viet Road, Hanoi, Viet Nam
| | - T D Dao
- National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan
| | - H V Chung
- National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan
| | - T Nagao
- National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan
| | - Nguyen Van Hieu
- International Training Institute for Materials Science, Hanoi University of Science and Technology, No. 1 Dai Co Viet Road, Hanoi, Viet Nam.
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Ibayashi S, Irie K, Kitayama J, Nagao T, Kitazono T, Fujishima M. Ischemic brain metabolism in patients with chronic cerebrovascular disease: Increased oxygen extraction fraction and cerebrospinal fluid lactate. J Stroke Cerebrovasc Dis 2013; 9:166-71. [PMID: 24192022 DOI: 10.1053/jscd.2000.7219] [Citation(s) in RCA: 5] [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] [Received: 12/22/1999] [Accepted: 01/07/2000] [Indexed: 11/11/2022] Open
Abstract
The aim of the present study is to elucidate the existence of chronically ischemic metabolism concomitant with misery perfusion of the brain in patients with chronic cerebrovascular disease. For this purpose, we measured cerebral blood flow (CBF) and oxygen metabolism by positron emission tomography (PET) and also determined cerebrospinal fluid (CSF) lactate as an indicator of the ischemic brain metabolism. Twenty-eight patients with chronic ischemic stroke and transient ischemic attack (TIA), who had angiographically occlusive (n = 11), stenotic (n = 10), and nonstenotic changes (n = 7) of the carotid artery and/or the intracranial major artery, were selected for this study. CBF, oxygen extraction fraction (OEF), cerebral metabolic rate for oxygen (CMRO2), and cerebral blood volume (CBV) were determined by PET, and CSF lactate and pyruvate were determined by enzymatic method in the patients with various grades of stenotic changes of the carotid artery. There were no significant differences in PET parameters and CSF variables among the groups of the occlusive, stenotic, and nonstenotic carotid artery. However, CSF lactate was correlated negatively with mean bilateral hemispheric (m)CBF (R(2) = 0.229, P<.01), positively with mOEF (R(2) = 0.278, P<.005) and more highly with mCMRO2/CBF (absolute extraction of oxygen content to the brain) (R(2) = 0.473, P<.0001) in all patients. There was no correlation between CSF lactate and mCMRO2 or mCBV. None of the cases in the nonstenotic group showed mOEF greater than 0.45, or mCMRO2/CBF greater than 7.9 vol%, while 80% of the cases in the stenotic group and 82% of the cases in the occlusive group showed mOEF and mCMRO2/CBF exceeding the above-mentioned values, respectively. The present findings, that increased mOEF and mCMRO2/CBF were significantly correlated with increased CSF lactate, indicate the brain to be in a metabolically ischemic state or increased anaerobic glycolysis with oxygen metabolism maintained in patients with chronic ischemic stroke.
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Affiliation(s)
- S Ibayashi
- Second Department of Internal Medicine, Faculty of Medicine, Kyushu University, Higashi-ku, Fukuoka, Japan
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Kuroyanagi N, Miyachi H, Ochiai S, Kamiya N, Kanazawa T, Nagao T, Shimozato K. Prediction of neurosensory alterations after sagittal split ramus osteotomy. Int J Oral Maxillofac Surg 2013; 42:814-22. [DOI: 10.1016/j.ijom.2012.11.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2012] [Revised: 10/27/2012] [Accepted: 11/15/2012] [Indexed: 11/30/2022]
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Kimura M, Nagao T, Machida J, Warnakulasuriya S. Mutation of keratin 4 gene causing white sponge nevus in a Japanese family. Int J Oral Maxillofac Surg 2013. [DOI: 10.1016/j.ijom.2012.10.030] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Kusumoto K, Nagao T, Ogihara T. A New High-Throughput Analysis for Drug Metabolism Profiling Using Liquid Chromatography Coupled with Tandem Mass Spectrometry. Drug Res (Stuttg) 2013; 63:171-6. [DOI: 10.1055/s-0033-1333782] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- K. Kusumoto
- Bioscience Research Center, Pharmaceutical Business Division, Sumika Chemical Analysis Service, Ltd, Osaka, JAPAN
| | - T. Nagao
- Business Planning & Development Department, Pharmaceutical Business Division, Sumika Chemical Analysis Service, Ltd, Osaka, JAPAN
| | - T. Ogihara
- Faculty of Pharmacy, Takasaki University of Health and Welfare, Gunma, JAPAN
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Kusama K, Yoshie M, Tamura K, Kodaka Y, Hirata A, Sakurai T, Bai H, Imakawa K, Nishi H, Isaka K, Nagai T, Nagao T, Tachikawa E. Regulation of decidualization in human endometrial stromal cells through exchange protein directly activated by cyclic AMP (Epac). Placenta 2013; 34:212-21. [PMID: 23352189 DOI: 10.1016/j.placenta.2012.12.017] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [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: 11/02/2012] [Revised: 12/19/2012] [Accepted: 12/20/2012] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Human endometrial stromal cells (ESCs) undergo differentiation during the decidualization process. Decidualization is characterized by their enhanced production of IGF binding protein-1 (IGFBP-1), prolactin (PRL), and the forkhead transcriptional factor FOXO1, and transformation into more rounded cells, during the secretory phase of the menstrual cycle and subsequent pregnancy. Protein kinase A (PKA)-mediated cAMP signaling is crucial for this process. The present study was undertaken to examine the involvement of a mediator of cAMP signaling, exchange protein directly activated by cAMP (Epac), in decidualization of cultured ESCs. RESULTS Treatment of ESCs with the Epac-selective cAMP analog 8-CPT-2-OMe-cAMP (CPT) had no effect on IGFBP-1, PRL, and FOXO1 mRNA expression. However, CPT potentiated IGFBP-1 and PRL expression stimulated by the PKA-selective cAMP analog N(6)-Phe-cAMP (Phe) and activated Rap1, a downstream regulator of Epac signaling. Knock-down of Epac1, Epac2, or Rap1 significantly inhibited the Phe- or Phe/CPT-induced increase in IGFBP-1 and PRL expression, as well as Rap1 activation. Furthermore, CPT enhanced IGFBP-1 and PRL expression and the morphological differentiation induced by ovarian steroids, whereas Epac1, Epac2, or Rap1 knock-down suppressed these events. CONCLUSION These data provide evidence for the involvement of the Epac/Rap1 signaling pathway in cAMP-mediated decidualization of human ESCs.
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Affiliation(s)
- K Kusama
- Department of Endocrine and Neural Pharmacology, Tokyo University of Pharmacy and Life Sciences, Japan
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Kuroyanagi N, Nagao T, Sakuma H, Miyachi H, Ochiai S, Kimura Y, Fukano H, Shimozato K. Risk of surgical glove perforation in oral and maxillofacial surgery. Int J Oral Maxillofac Surg 2012; 41:1014-9. [PMID: 22446068 DOI: 10.1016/j.ijom.2012.02.010] [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] [Received: 06/22/2011] [Revised: 12/21/2011] [Accepted: 02/15/2012] [Indexed: 10/28/2022]
Abstract
Oral and maxillofacial surgery, which involves several sharp instruments and fixation materials, is consistently at a high risk for cross-contamination due to perforated gloves, but it is unclear how often such perforations occur. This study aimed to address this issue. The frequency of the perforation of surgical gloves (n=1436) in 150 oral and maxillofacial surgeries including orthognathic surgery (n=45) was assessed by the hydroinsufflation technique. Orthognathic surgery had the highest perforation rate in at least 1 glove in 1 operation (91.1%), followed by cleft lip and palate surgery (55.0%), excision of oral soft tumour (54.5%) and dental implantation (50.0%). The perforation rate in scrub nurses was 63.4%, followed by 44.4% in surgeons and first assistants, and 16.3% in second assistants. The odds ratio for the perforation rate in orthognathic surgery versus other surgeries was 16.0 (95% confidence interval: 5.3-48.0). The protection rate offered by double gloving in orthognathic surgery was 95.2%. These results suggest that, regardless of the surgical duration and blood loss in all fields of surgery, orthognathic surgery must be categorized in the highest risk group for glove perforation, following gynaecological and open lung surgery, due to the involvement of sharp objects.
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Affiliation(s)
- N Kuroyanagi
- Department of Maxillofacial Surgery, Aichi-Gakuin University School of Dentistry, Aichi, Japan
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Kohler H, Nagao T, Stöckmann HJ. Parametric correlations versus fidelity decay: the symmetry breaking case. Phys Rev E Stat Nonlin Soft Matter Phys 2011; 84:061133. [PMID: 22304066 DOI: 10.1103/physreve.84.061133] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2011] [Revised: 09/01/2011] [Indexed: 05/31/2023]
Abstract
We provide formulas for fidelity decay and parametric energy correlations for random matrix ensembles where time-reversal invariance of the original Hamiltonian is broken by the perturbation. Like in the case of a symmetry conserving perturbation a simple relation between both quantities exists. Fidelity freeze is observed for systems with even and odd spin.
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Affiliation(s)
- H Kohler
- Instituto de Ciencia de Materiales de Madrid, CSIC, Sor Juana de la Cruz 3, Cantoblanco, ES-28049 Madrid, Spain.
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Nomura M, Fukuda T, Nagase K, Tojo H, Nagao T, Gotoh N, Ohira T, Katoh H, Ikeda N, Nishimura T. PP 70 Stathmin1 - drug sensitivity associated protein of lung cancer. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)72688-0] [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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Nagao T, Kinoshita T, Tamura N, Hojo T, Morota M, Kagami Y. Locoregional recurrence risk factor and indications for postmastectomy radiotherapy in Japanese patients with tumors 5 cm or larger. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.27_suppl.127] [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
127 Background: Locoregional recurrence (LRR) after mastectomy reduces the patient’s quality of life and survival. There is a consensus that postmastectomy radiotherapy (PMRT) helps achieve locoregional control and reduces LRR. However, in patients with large tumors, the question of which variables affect the likelihood of LRR and the role of PMRT has been the subject of substantial controversy. This study investigated what are risk factors for LRR and the efficacy of PMRT in this Japanese patient population. Methods: This study examined 589 cases of invasive breast carcinoma with tumors 5 cm or larger from 1998 to 2008. We divided the study population into 3 groups: patients with negative nodes, 1-3 positive nodes, and ≥4 positive nodes. The relationship between various clinicopathological variables and LRR was examined and the relationship between LRR and PMRT was estimated. Results: During the median follow-up was 44.2 months, 38 (6.5%) patients experienced LRR. In the multivariate analysis, independent predictors of LRR include pectoral invasion in patients with 1-3 positive nodes, and severity lymphatic invasion, estrogen receptor-negative status, and nodal ratio of positive/excised nodes ≥ 0.50 in patients with ≥4 positive nodes. In patients without positive nodes, none of the examined variables were significantly associated with LRR. PMRT did not improve the outcome of the patients at highest risk who had these variables. Conclusions: The efficacy of PMRT in patients with large tumors was not shown. In the context of systemic therapy and adequate lymph node dissection, PMRT by itself had a limited role in providing locoregional control. Due to the very low incidence of LRR observed, PMRT was not necessary for patients with large tumors without lymph node metastasis. The indication for PMRT in patients with metastatic nodes remains controversial.
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Affiliation(s)
- T. Nagao
- National Cancer Center Hospital, Tokyo, Japan
| | | | - N. Tamura
- National Cancer Center Hospital, Tokyo, Japan
| | - T. Hojo
- National Cancer Center Hospital, Tokyo, Japan
| | - M. Morota
- National Cancer Center Hospital, Tokyo, Japan
| | - Y. Kagami
- National Cancer Center Hospital, Tokyo, Japan
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Ito M, Sato A, Yamaki R, Naito M, Kobayashi K, Nagao T, Suzuki K, Sakurai H, Maruyama H, Itou M, Sakurai Y. X-ray magnetic diffraction and magnetic Compton scattering of Pd-Co and Pt-Fe. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311086570] [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: 11/11/2022] Open
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Han G, Weber D, Neubrech F, Yamada I, Mitome M, Bando Y, Pucci A, Nagao T. Infrared spectroscopic and electron microscopic characterization of gold nanogap structure fabricated by focused ion beam. Nanotechnology 2011; 22:275202. [PMID: 21597137 DOI: 10.1088/0957-4484/22/27/275202] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Using infrared spectroscopy of plasmonic resonances and mapping of elemental composition and structure, we investigated the correlation between optical and structural properties of nanometre-scale gaps in gold nanorod dimers fabricated by electron beam lithography (EBL) and focused ion beam (FIB) milling. In spite of their very similar scanning electron microscopy (SEM) images, a fully cut nanogap and a shallower cut with slight imperfection near the gap region were clearly distinguished by their strongly different infrared plasmonic resonance behaviour. The differences in the infrared spectra are related to different structural and chemical results from elaborated cross-sectional transmission electron micrographs and energy dispersive x-ray spectrometry (EDX) mapping of the gap region.
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Affiliation(s)
- G Han
- International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
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Mattei J, Kato Y, Wynes MW, Cano CH, Achcar RD, Reyna Asuncion B, de Macedo BR, Meurer L, Kulczynski J, Roesler R, Yoshida K, Matsubayashi J, Ohira T, Nagao T, Furukawa K, Ikeda N, Brunetto A, Schwartsmann G. Gastrin-releasing peptide receptor expression in Brazilian and Japanese patients with lung cancer and normal lung tissue samples from healthy individuals. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.10588] [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: 11/20/2022] Open
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Kato Y, Mascaux C, Wynes MW, Reyna Asuncion B, Tran C, Yoshida K, Matsubayashi J, Nakajima E, Ohira T, Nagao T, Furukawa K, Ikeda N, Hirsch FR. The role of IGF-1R in EGFR TKI resistance in NSCLC using IHC and AQUA technology. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.10556] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Kerr AR, Warnakulasuriya S, Mighell AJ, Dietrich T, Nasser M, Rimal J, Jalil A, Bornstein MM, Nagao T, Fortune F, Hazarey VH, Reichart PA, Silverman S, Johnson NW. A systematic review of medical interventions for oral submucous fibrosis and future research opportunities. Oral Dis 2011; 17 Suppl 1:42-57. [DOI: 10.1111/j.1601-0825.2011.01791.x] [Citation(s) in RCA: 103] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Kinoshita T, Hojo T, Nagao T, Tamura N, Tanaka S, Fujiwara Y. P241 Sentinel lymph node biopsy after preoperative chemotherapy in breast cancer patients. Breast 2011. [DOI: 10.1016/s0960-9776(11)70187-4] [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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50
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McCarthy DN, Yaginuma S, Gui H, Nagao T. Thickness dependent phase transition of Bi films quench condensed on semiconducting surfaces. CrystEngComm 2011. [DOI: 10.1039/c1ce05120b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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