1
|
Yasaka Y, Nakao S. Roth spots in gallbladder cancer. J Fr Ophtalmol 2023; 46:998-999. [PMID: 37100712 DOI: 10.1016/j.jfo.2023.01.025] [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: 11/22/2022] [Revised: 01/17/2023] [Accepted: 01/19/2023] [Indexed: 04/28/2023]
Affiliation(s)
- Y Yasaka
- National Hospital Organization, Kyushu Medical Center, 1-8-1 Jigyohama, Chuo-ku, Fukuoka 810-8563, Japan; Juntendo University, 2-2-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - S Nakao
- Juntendo University, 2-2-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan.
| |
Collapse
|
2
|
Nourinia R, Nouri H, Abtahi SH, Nakao S, Eslamipour J, Gerami E, Ahmadieh H. Intravitreal fasudil monotherapy for treatment of refractory diabetic macular edema: A prospective interventional case series. J Fr Ophtalmol 2023:S0181-5512(23)00367-4. [PMID: 37620196 DOI: 10.1016/j.jfo.2023.03.034] [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: 11/19/2022] [Accepted: 03/22/2023] [Indexed: 08/26/2023]
Abstract
BACKGROUND Suboptimal response to conventional treatments in refractory diabetic macular edema (rDME) encourages efforts to identify new therapeutic options. PURPOSE To evaluate the effect of three monthly intravitreal injections of a Rho-associated protein kinase (ROCK) inhibitor (Fasudil, Asahi Kasei Pharma Corporation, Tokyo, Japan) in eyes with rDME. METHODS Ten eyes of 10 patients with DME unresponsive to at least six previous intravitreal bevacizumab (IVB) injections were recruited and underwent 3 consecutive monthly intravitreal injection of 0.025mg/0.05mL Fasudil. Best-corrected visual acuity (BCVA) and central macular thickness (CMT) were evaluated as functional and anatomical response indicators, respectively. RESULTS The mean age was 60.1±5.1 years (range, 53-68). Five cases responded to treatment, two with both anatomical and functional responses (reduction of CMT from 521 to 395 and from 390 to 301 microns and improvement of BCVA from 0.3 to 0.1 LogMAR and 0.6 to 0.4 LogMAR, respectively) and three with only functional improvement (0.7 to 0.4; 0.7 to 0.4; and 0.3 to 0.1 LogMAR). Of note, cases with no significant change in CMT showed morphologic improvement of the retinal microstructure to some extent. No adverse event was observed during the study period. CONCLUSION Monotherapy with intravitreal injection of ROCK inhibitors appears to have moderate visual benefits in eyes with DME refractory to IVB. Such effects may be functionally significant without obvious anatomical improvement.
Collapse
Affiliation(s)
- R Nourinia
- Ophthalmic Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Labbafinejad Medical Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - H Nouri
- Ophthalmic Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran; School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - S-H Abtahi
- Ophthalmic Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Labbafinejad Medical Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - S Nakao
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - J Eslamipour
- Ophthalmic Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Labbafinejad Medical Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Ophthalmology, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - E Gerami
- Ophthalmic Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Labbafinejad Medical Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - H Ahmadieh
- Ophthalmic Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Labbafinejad Medical Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
3
|
Tsuchiya N, Okamoto K, Nakao S, Ohmori S, Shimizu T. Effect of Blonanserin on the Proliferation and Migration of Glioblastoma Cells. Pharmazie 2023; 78:37-41. [PMID: 37189270 DOI: 10.1691/ph.2023.1821] [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: 05/17/2023]
Abstract
Glioblastoma is a highly malignant and invasive brain tumor, and there is an urgent need to establish a treatment option that prevents its growth and metastasis. Blonanserin is an antipsychotic drug widely used in the treatment of schizophrenia. It has recently been reported to inhibit the growth of breast cancer cells. In this study, we investigated the effect of blonanserin on the proliferation and migration of glioblastoma cells. The anti-proliferative activity of blonanserin was evaluated in terms of cell viability, competition, and cell death pathways in glioblastoma. Cell viability studies showed that blonanserin had growth inhibitory ability regardless of the malignancy of glioblastoma cells, but at concentrations close to its IC50, it only had a slight cell death-inducing effect. Blonanserin showed growth inhibitory activity without D₂ antagonism following an independent competition analysis using blonanserin and D₂ antagonists. When the anti-migration activity of U251 cells was measured, blonanserin was found to attenuate cell migration. Furthermore, treatment with blonanserin at concentrations close to its IC50 value inhibited extensive filament actin formation. In conclusion, blonanserin inhibited the proliferation and migration of glioblastoma cells independent of D₂ antagonism. The present study shows that blonanserin may serve as a seed compound for the discovery of new glioblastoma therapeutics to prevent the growth and metastasis of glioblastoma.
Collapse
Affiliation(s)
- N Tsuchiya
- School of Pharmacy, Hyogo Medical University, Kobe, Japan
| | - K Okamoto
- School of Pharmacy, Hyogo Medical University, Kobe, Japan
| | - S Nakao
- School of Pharmacy, Hyogo Medical University, Kobe, Japan
| | - S Ohmori
- School of Pharmacy, Hyogo Medical University, Kobe, Japan
| | - T Shimizu
- School of Pharmacy, Hyogo Medical University, Kobe, Japan;,
| |
Collapse
|
4
|
Takamatsu H, Takezako N, Zheng J, Moorhead M, Carlton VEH, Kong KA, Murata R, Ito S, Miyamoto T, Yokoyama K, Matsue K, Sato T, Kurokawa T, Yagi H, Terasaki Y, Ohata K, Matsumoto M, Yoshida T, Faham M, Nakao S. Corrigendum to "Prognostic value of sequencing-based minimal residual disease detection in patients with multiple myeloma who underwent autologous stem-cell transplantation": [Annals of Oncology 28 (2017):2503-2510]. Ann Oncol 2023; 34:322. [PMID: 36075840 DOI: 10.1016/j.annonc.2022.08.004] [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: 11/30/2022] Open
Affiliation(s)
- H Takamatsu
- Hematology/Respiratory Medicine, Faculty of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan.
| | - N Takezako
- Department of Hematology, National Hospital Organization Disaster Medical Center of Japan, Tachikawa, Japan
| | - J Zheng
- Adaptive Biotechnologies Corp., South San Francisco, USA
| | - M Moorhead
- Adaptive Biotechnologies Corp., South San Francisco, USA
| | - V E H Carlton
- Adaptive Biotechnologies Corp., South San Francisco, USA
| | - K A Kong
- Adaptive Biotechnologies Corp., South San Francisco, USA
| | - R Murata
- Division of Internal Medicine, Keiju Kanazawa Hospital, Kanazawa, Japan
| | - S Ito
- Department of Medical Oncology, Iwate Medical University School of Medicine, Morioka, Japan
| | - T Miyamoto
- Medicine and Biosystemic Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - K Yokoyama
- Department of Hematology/Oncology, Tokai University Hachioji Hospital, Hachioji, Japan
| | - K Matsue
- Division of Hematology/Oncology, Department of Medicine, Kameda Medical Center, Kamogawa, Japan
| | - T Sato
- Department of Medical Oncology and Hematology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - T Kurokawa
- Department of Hematology, Toyama Red Cross Hospital, Toyama, Japan
| | - H Yagi
- Department of Hematology, Kinki University School of Medicine Nara Hospital, Ikoma, Nara, Japan
| | - Y Terasaki
- Division of Internal Medicine, Toyama City Hospital, Toyama, Japan
| | - K Ohata
- Hematology/Respiratory Medicine, Faculty of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - M Matsumoto
- Department of Hematology, National Hospital Organization Shibukawa Medical Center, Shibukawa, Japan
| | - T Yoshida
- Department of Hematology, Shizuoka City Shimizu Hospital, Shizuoka, Japan
| | - M Faham
- Adaptive Biotechnologies Corp., South San Francisco, USA
| | - S Nakao
- Hematology/Respiratory Medicine, Faculty of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| |
Collapse
|
5
|
Nakao S, Watanabe J, Yoshihiro S, Maniwa S. Recommended revisions to the article "Prehabilitation and heart failure". Eur Rev Med Pharmacol Sci 2022; 26:4948. [PMID: 35916788 DOI: 10.26355/eurrev_202207_29278] [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] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- S Nakao
- Rehabilitation Department, Shimane University Hospital 89-1 Enyacho, Izumo, Shimane, Japan.
| | | | | | | |
Collapse
|
6
|
Nakao S, Atkinson AJ, Motomochi T, Fukunaga D, Dobrzynski H. Common arterial trunk in a cat: a high-resolution morphological analysis with micro-computed tomography. J Vet Cardiol 2021; 34:8-15. [PMID: 33486210 DOI: 10.1016/j.jvc.2020.12.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 12/10/2020] [Accepted: 12/14/2020] [Indexed: 10/22/2022]
Abstract
A 6-month-old female cat presented with respiratory distress. Physical examination showed a grade 5/6 holosystolic murmur with prominent precordial impulse over the left cranial chest wall. Echocardiography revealed bilateral hypertrophy of the ventricular walls, a dilated ascending aorta overriding the interventricular septum, a membranous ventricular septal defect and no obvious pulmonary trunk or pulmonary artery branches. Turbulent blood flow was detected around the ventricular septal defect and ascending aorta. Follow-up assessment, 12 months later, revealed marked and progressive biatrial dilation and biventricular hypertrophy. Four months after that, the cat died of severe congestive heart failure. To make a definitive postmortem diagnosis, we performed contrast enhanced micro-computed tomography (CT) on the ex vivo heart with micron-scale spatial resolution imaging and three-dimensional reconstruction. Micro-computed tomography analysis confirmed a common arterial trunk that bifurcated into the left pulmonary artery and aorta 5-mm distally from the truncal valve. The pulmonary trunk was absent. Slightly distal to the first branching, the common arterial trunk further branched into the right pulmonary artery and ascending aorta, indicating the aortic dominant form. Although CT angiography would be a preferred imaging modality for living animals, micro-computed tomography is a valuable tool for the ex vivo diagnosis of complex cardiac anomaly, such as presented in this cat.
Collapse
Affiliation(s)
- S Nakao
- Department of Biomedical Sciences, College of Life Sciences, Ritsumeikan University, Japan; Ritsumeikan Global Innovation Research Organization, Ritsumeikan University, 1-1-1 Noji-higashi, Kusatsu, Shiga 525-8577, Japan; Division of Cardiovascular Sciences, Faculty of Biology, Medicine and Health, University of Manchester, 46 Grafton Street, Manchester M13 9NT, United Kingdom.
| | - A J Atkinson
- Division of Cardiovascular Sciences, Faculty of Biology, Medicine and Health, University of Manchester, 46 Grafton Street, Manchester M13 9NT, United Kingdom
| | - T Motomochi
- Motomochi Animal Hospital, 22-6 Karahashi-cho, Otsu, Shiga 520-0851, Japan
| | - D Fukunaga
- CREA Animal Hospital, 5-13-21 Aoyama, Otsu, Shiga 520-2101, Japan
| | - H Dobrzynski
- Division of Cardiovascular Sciences, Faculty of Biology, Medicine and Health, University of Manchester, 46 Grafton Street, Manchester M13 9NT, United Kingdom; Department of Anatomy, Jagiellonian University Medical College, Świętej Anny 12, Cracow 31-008, Poland.
| |
Collapse
|
7
|
Stuart L, Oh IY, Wang Y, Nakao S, Starborg T, Yanni-Gerges J, Kitmitto A, Dobrzynski H, Cartwright EJ, Oceandy D, Boyett MR. P3826Gene therapy for cardiac conduction system dysfunction in heart failure. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background and purpose
Heart failure (HF) is characterised by generalised dysfunction of the cardiac conduction system (CCS). Ion channel and structural remodelling in the CCS have been widely demonstrated in animal models of cardiovascular disease. As Purkinje fibres (PFs) are minute strands of tissue, little is known about their ultrastructure and remodelling in disease. Furthermore, given the role for microRNAs (miRs) in CCS molecular remodelling, we aimed to develop a tissue specific method for delivering therapeutic transgenes, such as miR sponges.
Methods
New Zealand rabbits were used for PF ultrastructural studies. HF was induced via pressure and volume overload. Free running PFs were processed for serial block face scanning electron microscopy (SBF-SEM). Manual contrast-based segmentation techniques were used on IMOD software to determine the 3D cellular ultrastructure. To target transgene expression to the CCS, adenoviral plasmids were cloned expressing a GFP reporter gene. GFP transcription was placed under control of the KCNE1 promoter, a K+ channel subunit expressed throughout the CCS, or the HCN4 promoter, a key pacemaker ion channel, to target the sinus node. The strong ubiquitous cytomegalovirus (CMV) promoter was used as a positive control. Adenovirus was produced using via transfection into the 293A cell line for viral packaging and amplification.
Results
Purkinje cells (PCs) formed a central core within PFs, encapsulated by an extensive collagen matrix. PCs were uninucleated and spindle shaped with an irregular membrane. Gap junctions were abundant and distributed along the lateral surface of cells, and there was a trend towards decreased expression in HF (p=0.0526, n=3 cells analysed per group). Hypertrophy and nuclear membrane breakdown were evident in HF PCs, the latter facilitating mitochondrial entry.
Using the CMV-GFP adenoviral construct, abundant GFP expression was conferred in ex vivo sinus node tissue, isolated sinus node myocytes, and neonatal ventricular rat cardiomyocytes (NRCMs). The KCNE1 promoter conferred relatively high GFP expression in NRCMs, greater than that from the HCN4 promoter. In isolated sinus node myocytes, the HCN4 promoter conferred greater transgene expression than in NRCMs. In ex vivo sinus node tissue, only the CMV construct was capable of driving significant GFP expression. Notably, expression was largely confined to the sinus node, with only sparse expression detected in the surrounding atrial muscle.
Conclusions
SBF-SEM revealed ultrastructure of free running PFs in situ, and uncovered novel structural changes in HF that are likely to be pro-arrhythmic. Preliminary data suggest that 1.2 kb and 0.8 kb fragments of the HCN4 promoter are capable of driving sinus node specific transgene expression. Further tests are warranted to confirm the utility of these promoters to express therapeutic transgenes, such as miR sponges to competitively inhibit miR activity in vitro and in vivo.
Acknowledgement/Funding
The British Heart Foundation
Collapse
Affiliation(s)
- L Stuart
- University of Manchester, School of Medical Sciences, Division of Cardiovascular Sciences, Manchester, United Kingdom
| | - I Y Oh
- Seoul National University Hospital, Division of Cardiology, Department of Internal Medicine, Seoul, Korea (Republic of)
| | - Y Wang
- University of Manchester, School of Medical Sciences, Division of Cardiovascular Sciences, Manchester, United Kingdom
| | - S Nakao
- Ritsumeikan University, Department of Biomedical Sciences, Shiga, Japan
| | - T Starborg
- University of Manchester, Wellcome Centre for Cell-Matrix Research, Manchester, United Kingdom
| | - J Yanni-Gerges
- University of Manchester, School of Medical Sciences, Division of Cardiovascular Sciences, Manchester, United Kingdom
| | - A Kitmitto
- University of Manchester, School of Medical Sciences, Division of Cardiovascular Sciences, Manchester, United Kingdom
| | - H Dobrzynski
- University of Manchester, School of Medical Sciences, Division of Cardiovascular Sciences, Manchester, United Kingdom
| | - E J Cartwright
- University of Manchester, School of Medical Sciences, Division of Cardiovascular Sciences, Manchester, United Kingdom
| | - D Oceandy
- University of Manchester, School of Medical Sciences, Division of Cardiovascular Sciences, Manchester, United Kingdom
| | - M R Boyett
- University of Manchester, School of Medical Sciences, Division of Cardiovascular Sciences, Manchester, United Kingdom
| |
Collapse
|
8
|
Takamatsu H, Takezako N, Zheng J, Moorhead M, Carlton VEH, Kong KA, Murata R, Ito S, Miyamoto T, Yokoyama K, Matsue K, Sato T, Kurokawa T, Yagi H, Terasaki Y, Ohata K, Matsumoto M, Yoshida T, Faham M, Nakao S. Prognostic value of sequencing-based minimal residual disease detection in patients with multiple myeloma who underwent autologous stem-cell transplantation. Ann Oncol 2018; 28:2503-2510. [PMID: 28945825 PMCID: PMC5834061 DOI: 10.1093/annonc/mdx340] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Background Most patients with multiple myeloma (MM) are considered to be incurable, and relapse owing to minimal residual disease (MRD) is the main cause of death among these patients. Therefore, new technologies to assess deeper response are required. Patients and methods We retrospectively analyzed 125 patients with MM who underwent high-dose melphalan plus autologous stem-cell transplantation (ASCT) to detect MRD in autograft/bone marrow (BM) cells using a next-generation sequencing (NGS)-based method and allele-specific oligonucleotide-polymerase chain reaction (ASO-PCR). Results NGS-based method was applicable to 90% and this method had at least one to two logs greater sensitivity compared to ASO-PCR. MRD negative by NGS [MRDNGS(−)] (defined as <10−6) in post-ASCT BM cases (n = 26) showed a significantly better progression-free survival (PFS) (96% at 4 years, P < 0.001) and overall survival (OS) (100% at 4 years, P =0.04) than MRDNGS(+) in post-ASCT BM cases (n = 25). When restricting the analysis to the 39 complete response cases, patients who were MRDNGS(−) (n = 24) showed a significantly better PFS than those that were MRDNGS(+) (n = 15) (P =0.02). Moreover, MRDNGS(−) in post-ASCT BM cases (n = 12) showed significantly a better PFS than MRDNGS(+) cases (n = 7) where MRD was not detected by ASO-PCR (P = 0.001). Patients whose autografts were negative by NGS-based MRD assessment (<10−7) (n = 19) had 92% PFS and 100% OS at 4 years post-ASCT. Conversely, the NGS-based MRD positive patients who received post-ASCT treatment using novel agents (n = 49) had a significantly better PFS (P = 0.001) and tended to have a better OS (P= 0.214) than those that were untreated (n = 33). Conclusions Low level MRD detected by NGS-based platform but not ASO-PCR has significant prognostic value when assessing either the autograft product or BM cells post-ASCT.
Collapse
Affiliation(s)
- H Takamatsu
- Hematology/Respiratory Medicine, Faculty of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa;.
| | - N Takezako
- Department of Hematology, National Hospital Organization Disaster Medical Center of Japan, Tachikawa, Japan
| | - J Zheng
- Adaptive Biotechnologies Corp., South San Francisco, USA
| | - M Moorhead
- Adaptive Biotechnologies Corp., South San Francisco, USA
| | - V E H Carlton
- Adaptive Biotechnologies Corp., South San Francisco, USA
| | - K A Kong
- Adaptive Biotechnologies Corp., South San Francisco, USA
| | - R Murata
- Division of Internal Medicine, Keiju Kanazawa Hospital, Kanazawa
| | - S Ito
- Department of Medical Oncology, Iwate Medical University School of Medicine, Morioka
| | - T Miyamoto
- Medicine and Biosystemic Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka
| | - K Yokoyama
- Department of Hematology/Oncology, Tokai University Hachioji Hospital, Hachioji
| | - K Matsue
- Division of Hematology/Oncology, Department of Medicine, Kameda Medical Center, Kamogawa
| | - T Sato
- Department of Medical Oncology and Hematology, Sapporo Medical University School of Medicine, Sapporo
| | - T Kurokawa
- Department of Hematology, Toyama Red Cross Hospital, Toyama
| | - H Yagi
- Department of Hematology, Kinki University School of Medicine Nara Hospital, Ikoma, Nara
| | - Y Terasaki
- Division of Internal Medicine, Toyama City Hospital, Toyama
| | - K Ohata
- Hematology/Respiratory Medicine, Faculty of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa
| | - M Matsumoto
- Department of Hematology, National Hospital Organization Shibukawa Medical Center, Shibukawa
| | - T Yoshida
- Department of Hematology, Shizuoka City Shimizu Hospital, Shizuoka, Japan
| | - M Faham
- Adaptive Biotechnologies Corp., South San Francisco, USA
| | - S Nakao
- Hematology/Respiratory Medicine, Faculty of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa
| |
Collapse
|
9
|
Nakao S, Itabashi M, Yamamoto T, Okamoto T. Predictive value of myenteric and submucosal plexitis for postoperative Crohn's disease recurrence. J Anus Rectum Colon 2018; 1:56-64. [PMID: 31583302 PMCID: PMC6768667 DOI: 10.23922/jarc.2016-006] [Citation(s) in RCA: 14] [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] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 02/06/2017] [Indexed: 01/10/2023]
Abstract
Objectives: To assess the predictive values of myenteric and submucosal plexitis for postoperative endoscopic recurrence of Crohn's disease (CD). Methods: A retrospective study of CD patients who underwent intestinal resection between 1995 and 2013 in the Department of Surgery 2, Tokyo Women's Medical University was performed. Proximal resection margins were analyzed and plexitis was evaluated by counting the number of inflammatory cells in myenteric and submucosal plexuses. The sizes of the most severely inflamed ganglion (MIG) were measured. Multiple regression analysis was used to identify independent risk factors for postoperative endoscopic recurrence. Results: Of the 51 included patients, 40 patients underwent colonoscopy after surgery. Endoscopic recurrence was observed in 21 patients (52.5%). Mean duration (±standard deviation) from surgery to recurrence was 49.7±34.7 months. Endoscopic recurrence rates at 1, 3, and 5 years were 5.0%, 24.1%, and 45.1%, respectively. Submucosal plexitis and myenteric plexitis were observed in 36 (90.0%) and 37 patients (92.5%), respectively. On multivariate analysis, initial intestinal resection, rate of plexitis <50%, size of the MIG in the myenteric plexus ≥867 μm2, and total number of inflammatory cells in the submucosal plexus ≥8 were independent risk factors for postoperative endoscopic recurrence. Conclusions: Pathological findings of proximal resection margins, especially submucosal plexitis and large sizes of myenteric plexus, are predictive of postoperative endoscopic recurrence in CD.
Collapse
Affiliation(s)
- Sayumi Nakao
- Department of Surgery 2, Tokyo Women's Medical University
| | | | - Tomoko Yamamoto
- Department of Surgical Pathology, Tokyo Women's Medical University
| | | |
Collapse
|
10
|
Fukuoka T, Maeda K, Nagahara H, Shibutani M, Nakao S, Matsutani S, Kashiwagi S, Hirakawa K, Ohira M. The change in the psoas muscle index in neoadjuvant therapy is a predictive prognostic marker in locally advanced rectal cancer. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx659.042] [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
|
11
|
Shibutani M, Maeda K, Nagahara H, Fukuoka T, Nakao S, Matsutani S, Kashiwagi S, Hirakawa K, Ohira M. The impact of the type of progression on survival in patients with metastatic colorectal cancer. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx659.019] [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
|
12
|
D'souza A, Nakao S, Zi M, Monfredi OJ, Wang Y, Cox C, Gill E, Cartwright EJ, Dobrzynski H, Boyett MR. 576Chronic endurance exercise induces ion channel remodelling and dysfunction of the atrioventricular node. Europace 2017. [DOI: 10.1093/ehjci/eux142.001] [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: 11/14/2022] Open
|
13
|
Saeki J, Nakamura M, Nakao S, Fujita K, Yanase K, Ichihashi N. Muscle stiffness of posterior lower leg in runners with a history of medial tibial stress syndrome. Scand J Med Sci Sports 2017; 28:246-251. [DOI: 10.1111/sms.12862] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/13/2017] [Indexed: 12/01/2022]
Affiliation(s)
- J. Saeki
- Human Health Sciences; Graduate School of Medicine; Kyoto University; Kyoto Japan
- Research Fellow of the Japan Society for the Promotion of Science; Tokyo Japan
| | - M. Nakamura
- Institute for Human Movement and Medical Sciences; Niigata University of Health and Welfare; Niigata Japan
| | - S. Nakao
- Human Health Sciences; Graduate School of Medicine; Kyoto University; Kyoto Japan
| | - K. Fujita
- Rehabilitation Group; Department of Medical Technique; Nagoya University Hospital; Nagoya Japan
| | - K. Yanase
- Human Health Sciences; Graduate School of Medicine; Kyoto University; Kyoto Japan
| | - N. Ichihashi
- Human Health Sciences; Graduate School of Medicine; Kyoto University; Kyoto Japan
| |
Collapse
|
14
|
Nishida K, Tenjimbayashi Y, Tasaka N, Shikama A, Sakuraiv M, Nakao S, Ochi H, Minaguchi T, Satoh T. Possible de novo clear cell carcinoma in the contralateral ovary 9 years after fertility-sparing surgery for Stage IA clear cell ovarian carcinoma. Int Cancer Conf J 2016; 6:50-54. [PMID: 31149470 PMCID: PMC6498281 DOI: 10.1007/s13691-016-0271-9] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 11/13/2016] [Indexed: 11/28/2022] Open
Abstract
A patient who underwent fertility-sparing surgery for Stage IA clear cell carcinoma may have developed de novo clear cell carcinoma in the contralateral ovary 9 years later. She underwent fertility-sparing surgery and postoperative adjuvant chemotherapy for right ovarian carcinoma at 33 years of age (when endometriosis was observed in the contralateral ovary). At the age of 41 years, a tumor was discovered in the left ovary. This was diagnosed pathologically as clear cell carcinoma with clear cell adenofibroma, which may have developed de novo. A consensus is currently taking shape that although fertility-sparing surgery is a therapeutic option for patients with Stage IA clear cell carcinoma, long-term outpatient monitoring is advised to watch for its recurrence or de novo development in the contralateral ovary.
Collapse
Affiliation(s)
- K Nishida
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575 Japan
| | - Y Tenjimbayashi
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575 Japan
| | - N Tasaka
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575 Japan
| | - A Shikama
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575 Japan
| | - M Sakuraiv
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575 Japan
| | - S Nakao
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575 Japan
| | - H Ochi
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575 Japan
| | - T Minaguchi
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575 Japan
| | - T Satoh
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575 Japan
| |
Collapse
|
15
|
Nakada K, Takahashi M, Ikeda M, Kinami S, Yoshida M, Uenosono Y, Kawashima Y, Nakao S, Oshio A, Suzukamo Y, Terashima M, Kodera Y. Factors affecting the quality of life of patients after gastrectomy as assessed using the newly developed PGSAS-45 scale: A nationwide multi-institutional study. World J Gastroenterol 2016; 22:8978-8990. [PMID: 27833389 PMCID: PMC5083803 DOI: 10.3748/wjg.v22.i40.8978] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 08/14/2016] [Accepted: 09/06/2016] [Indexed: 02/06/2023] Open
Abstract
AIM To identify certain clinical factors other than the type of gastrectomy which affect the postoperative quality of life (QOL) of patients after gastrectomy.
METHODS The postgastrectomy syndrome assessment scale (PGSAS)-45 was designed to assess the severity of symptoms, the living status and the QOL of gastrectomized patients. It consists of 45 items, of which 22 are original items while 23 were retrieved from the SF-8 and Gastrointestinal Symptoms Rating Scale questionnaires with permission. A nationwide surveillance study to validate PGSAS was conducted and 2368 gastric cancer patients who underwent various types of gastrectomy at 52 medical institutions were enrolled. Of these, 1777 patients who underwent total gastrectomy (TG) reconstructed with Roux-Y (n = 393), distal gastrectomy (DG) reconstructed with Billroth-I (n = 909), or DG reconstructed with Roux-Y (n = 475) were evaluated in the current study. The influence of the type of gastrectomy and other clinical factors such as age, sex, duration after surgery, the symptom severity, the degree of weight loss, dietary intake, and the ability for working on the postoperative QOL (i.e., dissatisfaction for daily life subscale, physical component summary and mental component summary of the SF-8) were examined by multiple regression analysis (MRA). In addition, importance of various symptoms such as esophageal reflux, abdominal pain, meal-related distress, indigestion, diarrhea, constipation and dumping on the postoperative living status and QOL were also appraised by MRA.
RESULTS The postoperative QOL were significantly deteriorated in patients who underwent TG compared to those after DG. However, the extent of gastrectomy was not an influential factor on patients’ QOL when adjusted by the MRA. Among various clinical factors, the symptom severity, ability for working, and necessity for additional meals were the most influential factors to the postoperative QOL. As for the individual symptoms, meal-related distress, dumping, abdominal pain, and esophageal reflux significantly affected the postoperative QOL in that order, while the influence of indigestion, diarrhea and constipation was insignificant.
CONCLUSION Several clinical factors such as the symptom severity (especially in meal-related distress and dumping), ability for working and necessity for additional meals were the main factors which affected the patients’ well-being after gastrectomy.
Collapse
|
16
|
Nakao S, Gale RP. Are mild/moderate acquired idiopathic aplastic anaemia and low-risk myelodysplastic syndrome one or two diseases or both and how should it/they be treated? Leukemia 2016; 30:2127-2130. [PMID: 27585953 DOI: 10.1038/leu.2016.206] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- S Nakao
- Department of Haematology, Faculty of Medicine, Kanazawa University Institutes of Medical, Pharmaceutical, and Health Sciences, Kanazawa, Japan
| | - R P Gale
- Division of Experimental Medicine, Department of Medicine, Haematology Research Centre, Imperial College London, London, UK
| |
Collapse
|
17
|
Higashi D, Katsuno H, Kimura H, Takahashi K, Ikeuchi H, Kono T, Nezu R, Hatakeyama K, Kameyama H, Sasaki I, Fukushima K, Watanabe K, Kusunoki M, Araki T, Maeda K, Kameoka S, Itabashi M, Nakao S, Maeda K, Ohge H, Watadani Y, Watanabe T, Sunami E, Hotokezaka M, Sugita A, Funayama Y, Futami K. Current State of and Problems Related to Cancer of the Intestinal Tract Associated with Crohn's Disease in Japan. Anticancer Res 2016; 36:3761-3766. [PMID: 27354651] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 05/23/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND/AIM Cancer of the intestinal tract (small and large intestine) associated with Crohn's disease has a low incidence but can be fatal if it develops. Thus, the key question is how to deal with this type of cancer. The current study surveyed major medical facilities that treat inflammatory bowel disease (IBD) surgically in Japan in order to examine the clinical features of cancer of the intestinal tract associated with Crohn's disease and explore ways to deal with this cancer in the future. PATIENTS AND METHODS Sixteen major medical facilities that treat IBD surgically were surveyed regarding cancer of the intestinal tract associated with Crohn's disease. The medical facilities had treated 3,454 patients with Crohn's disease, 122 of whom had developed intestinal cancer. The medical facilities were surveyed regarding those 122 patients. RESULTS The incidence of intestinal cancer associated with Crohn's disease has increased yearly. Cancer most often developed in the left side of the colon and, particularly, in the rectum and anal canal. Seventy-six percent of cases were diagnosed preoperatively, 4% were diagnosed intraoperatively, while the remaining 20% were diagnosed pathologically after surgery. The most prevalent histological type of cancer was mucinous carcinoma (50%). Forty-two percent of cancers were differentiated, with 4% being poorly differentiated. The surgical procedure performed most often (67%) was abdominoperineal resection. The 5-year survival rate by stage was 88% for Stage I, 68% for Stage II, 71% for Stage IIIa, 25% for Stage IIIb and 0% for Stage IV. Overall, the 5-year survival rate was 52%. CONCLUSION Gastrointestinal (GI) cancer associated with Crohn's disease had an incidence of 3.5%, but also involved a poor prognosis with a 5-year survival rate of 52%. Early detection through surveillance is crucial to improving the prognosis for patients. However, surveillance of the intestinal tract with endoscopy or contrast studies is technically and diagnostically hampered by Crohn's disease and intestinal strictures. A biopsy of the anal canal, a common site of cancer, can readily be performed and constitutes the first step in surveillance.
Collapse
Affiliation(s)
- Daijiro Higashi
- Department of Surgery, Fukuoka University Chikushi Hospital, Chikusino, Japan
| | | | - Hideaki Kimura
- Inflammatory Bowel Disease Center, Yokohama City University Medical Center, Yokohama, Japan
| | | | - Hiroki Ikeuchi
- Department of Inflammatory Bowel Disease Surgery, Hyogo College of Medicine, Nishonomiya, Japan
| | - Toru Kono
- Advanced Surgery Center Sapporo Higashi Tokushukai Hospital, Sapporo, Japan
| | - Riichiro Nezu
- Department of Surgery, Nishinomiya Municipal Central Hospital, Nishinomiya, Japan
| | - Katsuyoshi Hatakeyama
- Division of Digestive and General Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Hitoshi Kameyama
- Division of Digestive and General Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Iwao Sasaki
- Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Kouhei Fukushima
- Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Kazuhiro Watanabe
- Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Masato Kusunoki
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Toshimitsu Araki
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Kiyoshi Maeda
- Department of Surgical Oncology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Shingo Kameoka
- Department of Surgery 2, Tokyo Women's Medical University, Tokyo, Japan
| | - Michio Itabashi
- Department of Surgery 2, Tokyo Women's Medical University, Tokyo, Japan
| | - Sayumi Nakao
- Department of Surgery 2, Tokyo Women's Medical University, Tokyo, Japan
| | - Koutaro Maeda
- Department of Surgery, Fujita Health University, Toyoake, Japan
| | - Hiroki Ohge
- Department of Surgery, Hiroshima University, Hiroshima, Japan
| | - Yusuke Watadani
- Department of Surgery, Hiroshima University, Hiroshima, Japan
| | - Toshiaki Watanabe
- Department of Surgical Oncology and Vascular Surgery, The University of Tokyo, Tokyo, Japan
| | - Eiji Sunami
- Department of Surgical Oncology and Vascular Surgery, The University of Tokyo, Tokyo, Japan
| | | | - Akira Sugita
- Inflammatory Bowel Disease Center, Yokohama Municipal Citizen's Hospital, Yokohama, Japan
| | - Yuji Funayama
- Coloproctology Center, Tohoku Rosai Hospital, Sendai, Japan Department of Surgery, Sendai Red Cross Hospital, Sendai, Japan
| | - Kitaro Futami
- Department of Surgery, Fukuoka University Chikushi Hospital, Chikusino, Japan
| |
Collapse
|
18
|
Kimura H, Takahashi K, Futami K, Ikeuchi H, Tatsumi K, Watanabe K, Maeda K, Watadani Y, Nezu R, Kameyama H, Nakao S, Kurachi K, Hotokezaka M, Otsuka K, Watanabe T, Ozawa H. Has widespread use of biologic and immunosuppressant therapy for ulcerative colitis affected surgical trends? Results of a questionnaire survey of surgical institutions in Japan. Surg Today 2015; 46:930-8. [PMID: 26467558 DOI: 10.1007/s00595-015-1259-3] [Citation(s) in RCA: 12] [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] [Subscribe] [Scholar Register] [Received: 04/19/2015] [Accepted: 09/17/2015] [Indexed: 12/20/2022]
Abstract
PURPOSE The aim of the study is to assess the relationship between the introduction of biologic and immunosuppressant therapy and the number of patients undergoing surgery for ulcerative colitis (UC). METHODS A questionnaire survey about patients undergoing surgery for UC was sent to 26 teaching hospitals throughout Japan. The questionnaire period spanned from 2008 to 2013, to account for the introduction of tacrolimus (2009) and infliximab (2010). RESULTS The total number of patients who underwent surgery was 297, 291, 273, 255, 300, and 305 in 2008, 2009, 2010, 2011 2012, and 2013, respectively. The emergency surgery rate remained stable at 32-34 % each year. The proportion of patients who underwent surgery for cancer increased from 13.8 % in 2008 to 20 % in 2013. In 2013, 41, 38, and 6 % of patients who underwent surgery had received treatment with a biologic, tacrolimus, and cyclosporine, respectively. No institution reported an increase in postoperative complications among patients treated with immunosuppressive drugs. CONCLUSIONS The number of patients undergoing surgery decreased temporarily soon after infliximab and tacrolimus first became widely available, but subsequently increased again. The emergency surgery rate remained unchanged throughout the study period. These data show that immunosuppressive drugs have had little effect on the risk of postoperative complications.
Collapse
Affiliation(s)
- Hideaki Kimura
- Inflammatory Bowel Disease Center, Yokohama City University Medical Center, 4-57 Urafune-cho, Minami-ku, Yokohama, 232-0024, Kanagawa, Japan.
| | - Kenichi Takahashi
- Department of Colorectal Surgery, Tohoku Rosai Hospital, Sendai, Miyagi, Japan
| | - Kitaro Futami
- Department of Surgery, Fukuoka University Chikushi Hospital, Chikushino, Fukuoka, Japan
| | - Hiroki Ikeuchi
- Inflammatory Bowel Disease Center, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
| | - Kenji Tatsumi
- Inflammatory Bowel Disease Center, Yokohama Municipal Citizen's Hospital, Yokohama, Kanagawa, Japan
| | - Kazuhiro Watanabe
- Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Kiyoshi Maeda
- Department of Surgical Oncology, Osaka City University School of Medicine, Osaka, Japan
| | - Yusuke Watadani
- Department of Surgery, Hiroshima University, Hiroshima, Japan
| | - Riichiro Nezu
- Department of Surgery, Nishinomiya Municipal Central Hospital, Nishinomiya, Hyogo, Japan
| | - Hitoshi Kameyama
- Division of Digestive and General Surgery, Niigata University, Niigata, Japan
| | - Sayumi Nakao
- Second Department of Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Kiyotaka Kurachi
- Second Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | | | - Koki Otsuka
- Department of Surgery, Iwate Medical University School of Medicine, Morioka, Iwate, Japan
| | - Toshiaki Watanabe
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | - Heita Ozawa
- Division of Colorectal Surgery, Tochigi Cancer Center, Utsunomiya, Tochigi, Japan
| |
Collapse
|
19
|
Nagai M, Ohta A, Nishina M, Shimada N, Nakao S, Kurokawa M. Sex, Age and other Epidemiological Characteristics of Aplastic Anemia Patients in Japan. Int J Epidemiol 2015. [DOI: 10.1093/ije/dyv096.236] [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: 11/14/2022] Open
|
20
|
Ohta A, Nagai M, Nishina M, Shimada N, Nakao S, Kurokawa M. Incidence of Aplastic Anemia in Japan: Analysis of Data from a Nationwide Registration System. Int J Epidemiol 2015. [DOI: 10.1093/ije/dyv096.259] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
21
|
Haseba S, Nakao S, Ohira M, Yosihida A, Sakakima H. Effects of early postoperative rehabilitation on infants with congenital cardiac disease. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.3351] [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: 11/30/2022]
|
22
|
Mizuno T, Nakao S, Mizutani Y, Iwata T. Photon-counting 1.0 GHz-phase-modulation fluorometer. Rev Sci Instrum 2015; 86:043110. [PMID: 25933844 DOI: 10.1063/1.4917196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We have constructed an improved version of a photon-counting phase-modulation fluorometer (PC-PMF) with a maximum modulation frequency of 1.0 GHz, where a phase domain measurement is conducted with a time-correlated single-photon-counting electronics. While the basic concept of the PC-PMF has been reported previously by one of the authors, little attention has been paid to its significance, other than its weak fluorescence measurement capability. Recently, we have recognized the importance of the PC-PMF and its potential for fluorescence lifetime measurements. One important aspect of the PC-PMF is that it enables us to perform high-speed measurements that exceed the frequency bandwidths of the photomultiplier tubes that are commonly used as fluorescence detectors. We describe the advantages of the PC-PMF and demonstrate its usefulness based on fundamental performance tests. In our new version of the PC-PMF, we have used a laser diode (LD) as an excitation light source rather than the light-emitting diode that was used in the primary version. We have also designed a simple and stable LD driver to modulate the device. Additionally, we have obtained a sinusoidal histogram waveform that has multiple cycles within a time span to be measured, which is indispensable for precise phase measurements. With focus on the fluorescence intensity and the resolution time, we have compared the performance of the PC-PMF with that of a conventional PMF using the analogue light detection method.
Collapse
Affiliation(s)
- T Mizuno
- Division of Energy System, Institute of Technology and Science, Tokushima University, 2-1 Minami-Jyosanjima, Tokushima 770-8506, Japan
| | - S Nakao
- Division of Energy System, Institute of Technology and Science, Tokushima University, 2-1 Minami-Jyosanjima, Tokushima 770-8506, Japan
| | - Y Mizutani
- Division of Energy System, Institute of Technology and Science, Tokushima University, 2-1 Minami-Jyosanjima, Tokushima 770-8506, Japan
| | - T Iwata
- Division of Energy System, Institute of Technology and Science, Tokushima University, 2-1 Minami-Jyosanjima, Tokushima 770-8506, Japan
| |
Collapse
|
23
|
Ubukata M, Itabashi M, Ogawa S, Hirosawa T, Bamba Y, Nakao S, Kameoka S. Japanese D3 lymph node dissection in low rectal cancer with inferior mesenteric lymph node and/or lateral lymph node metastases. J Clin Oncol 2015. [DOI: 10.1200/jco.2015.33.3_suppl.530] [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
530 Background: The current Japanese Classification of Colorectal Carcinoma defines inferior mesenteric lymph nodes (IMLN) and lateral lymph nodes (LLN) as regional lymph nodes in rectal cancer. It states that these lymph nodes should be dissected when performing D3 dissection for rectal cancer. However, there is currently no consensus on the significance of Japanese D3 lymph node dissection in low rectal cancer. A retrospective study involving a large number of patients was conducted. Methods: The subjects were 2,743 patients registered in the multi-institutional registry of the Japanese Society for Cancer of the Colon and Rectum. The data were analyzed for outcomes in R0 cases with IMLN and/or LLN metastasis (IMLN(+)LLN(-) or IMLN(-)LLN(+) or IMLN(+)LLN(+)). Results: In the control group, 67 patients (2.7%) were considered positive for IMLN metastasis, 181 patients (7.4%) for LLN metastasis, and 34 patients (1.4%) for IMLN + LLN metastasis. The outcomes in the R0 cases with IMLN and/or LLN metastasis were 52.8% for 5-year RFS and 63.1% for 5-year OS, which were each better than for R1+R2 cases (5-year RFS 26.2%, p<0.0001; 5-year OS 30.5%, p<0.0001). Including only those with a total of seven or more metastatic lymph nodes, the outcomes in the R0 cases with IMLN and/or LLN metastasis were 53.6% for 5-year RFS and 64.9% for 5-year OS, which did not differ significantly from those for IMLN(-)LLN(-) cases (5-year RFS 54.4%, 5-year OS 55.2%) (RFS: p=0.9718, OS: p=0.4049). Conclusions: We confirmed that cases of IMLN and/or LLN metastasis in low rectal cancer tend to have a large total number of metastatic lymph nodes, but a good outcome can be expected if curative resection can be performed. These results demonstrate the value of radical Japanese D3 lymph node dissection in low rectal cancer with IMLN and/or LLN metastasis.
Collapse
Affiliation(s)
- Mamiko Ubukata
- Department of Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Michio Itabashi
- Department of Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | | | | | - Yoshiko Bamba
- Department of Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Sayumi Nakao
- Department of Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Shingo Kameoka
- Department of Surgery, Tokyo Women's Medical University, Tokyo, Japan
| |
Collapse
|
24
|
Nakao S, Itabashi M, Ubukata M, Bamba Y, Hirosawa T, Ogawa S, Kameoka S, Sugihara K. Age-specific prognostic factors in patients treated surgically for pulmonary metastases of colorectal cancer: A multi-institutional cumulative follow-up study. J Clin Oncol 2015. [DOI: 10.1200/jco.2015.33.3_suppl.773] [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
773 Background: The aim of this study was to investigate the age-specific prognostic factors for overall survival (OS) and disease-free interval (DFI) after pulmonary metastasectomy for colorectal cancer (CRC). Methods: We performed a retrospective analysis of 1,179 patients who underwent lung resection for colorectal metastases from 2001 to 2012 in 109 affiliated institutions of the Japanese Society for Cancer of the Colon and Rectum study group. The patients were divided into three groups by the age at pulmonary resection: Group A (GA) comprised of 396 patients who underwent lung resection under the age of 60 years old; Group B (GB) comprised of 604 patients who underwent lung resection between the ages of 61 and 74 years old; Group C (GC) comprised of 179 patients who underwent lung resection over the age of 75 years old. We used the Cox proportional hazard regression to identify independent prognostic factors for OS and DFI. Results: Median OS times after pulmonary resection were 45 months, 43 months, and 43 months for GA, GB, and GC, respectively. Two-year and 5-year overall survival rates were 73% and 54% for GA, 77% and 63% for GB, and 82% and 68% for GC, respectively. The independent unfavorable prognostic factors were recurrence after pulmonary resection (p<0.0001) in GA, detection of liver metastases before lung resection (p=0.0126), a high level of carcinoembryonic antigen (p=0.0003), and recurrence after pulmonary resection (p<0.0001) in GB, and recurrence after pulmonary resection (p<0.0001) in GC. Median DFI times were 11 months in all groups. The independent unfavorable prognostic factor was a removal of mediastinal lymph node (p=0.0335) in GB. Conclusions: Elder patients (GC) showed nearly the same OS rate compared with non-elder patients (GB), while younger patients (GA) showed poor OS rate. Recurrence after pulmonary resection revealed to be a poor prognostic factor in all groups.
Collapse
Affiliation(s)
- Sayumi Nakao
- Department of Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Michio Itabashi
- Department of Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Mamiko Ubukata
- Department of Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Yoshiko Bamba
- Department of Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | | | - Shimpei Ogawa
- Department of Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Shingo Kameoka
- Department of Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Kenichi Sugihara
- Department of Surgical Oncology, Tokyo Medical and Dental University, Graduate School, Tokyo, Japan
| |
Collapse
|
25
|
Hashimoto T, Itabashi M, Ogawa S, Hirosawa T, Bamba Y, Kaji S, Ubukata M, Nakao S, Kameoka S. Treatment strategy for preventing pouchitis as a postoperative complication of ulcerative colitis: the significance of the management of cuffitis. Surg Today 2014; 44:1730-4. [PMID: 25022954 DOI: 10.1007/s00595-014-0974-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Accepted: 06/10/2014] [Indexed: 12/16/2022]
Abstract
PURPOSE The aim of this study was to examine the risk factors for and to evaluate strategies for preventing pouchitis as a postoperative complication of ulcerative colitis (UC). METHODS A total of 119 cases of UC in which restorative proctocolectomy with an ileal pouch-anal anastomosis (IPAA) was performed at our institution between 2000 and 2012 was investigated; nine patients in whom it was impossible to close the ileostomy due to an intractable anal fistula or pelvic abscess were excluded. RESULTS The cumulative risk of developing pouchitis 5 years after IPAA with stoma closure was 31.0%. Significant relationships with pouchitis were found for the surgical indication (p = 0.0126) and surgical method (p = 0.0214). A significant correlation was found between pouchitis and cuffitis. Pouchitis was significantly more common in the cases with cuffitis than in those without (p = 0.0002). There was also a significantly different cumulative incidence observed between the cases with and without cuffitis (p < 0.0001). In addition, pouchitis had a greater tendency to recur in the cases with cuffitis than in those without (p = 0.2730). CONCLUSION The cumulative incidence rate of pouchitis was 10.6% at 1 year, 15.1% at 2 years and 31.0% at 5 years. Controlling cuffitis is important to prevent pouchitis.
Collapse
Affiliation(s)
- Takuzo Hashimoto
- Department of Surgery II, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan,
| | | | | | | | | | | | | | | | | |
Collapse
|
26
|
Hosokawa K, Yamazaki H, Nakamura T, Yoroidaka T, Imi T, Shima Y, Ohata K, Takamatsu H, Kotani T, Kondo Y, Takami A, Nakao S. Successful hyperbaric oxygen therapy for refractory BK virus-associated hemorrhagic cystitis after cord blood transplantation. Transpl Infect Dis 2014; 16:843-6. [PMID: 25040402 DOI: 10.1111/tid.12266] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2013] [Revised: 02/20/2014] [Accepted: 04/21/2014] [Indexed: 11/30/2022]
Abstract
BK virus-associated hemorrhagic cystitis (BKV-HC) is a common and major cause of morbidity in recipients of allogeneic hematopoietic stem cell transplantation. A 32-year-old woman developed severe BKV-HC on day 24 after cord blood transplantation (CBT). Despite supportive therapies - such as hyperhydration, forced diuresis, and urinary catheterization - macroscopic hematuria and bladder irritation persisted for over a month. Hyperbaric oxygen (HBO) therapy at 2.1 atmospheres for 90 min per day was started on day 64 after CBT. Macroscopic hematuria resolved within a week, and microscopic hematuria was no longer detectable within 2 weeks. Hematuria did not recur after 11 sessions of HBO therapy, and no significant side effects were observed during or after treatment. HBO therapy could thus be useful in controlling refractory BKV-HC after CBT.
Collapse
Affiliation(s)
- K Hosokawa
- Cellular Transplantation Biology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Hosokawa K, Takami A, Tsuji M, Araoka H, Ishiwata K, Takagi S, Yamamoto H, Asano-Mori Y, Matsuno N, Uchida N, Masuoka K, Wake A, Makino S, Yoneyama A, Nakao S, Taniguchi S. Relative incidences and outcomes of Clostridium difficile infection following transplantation of unrelated cord blood, unrelated bone marrow, and related peripheral blood in adult patients: a single institute study. Transpl Infect Dis 2014; 16:412-20. [PMID: 24810244 DOI: 10.1111/tid.12224] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2013] [Revised: 01/04/2014] [Accepted: 01/09/2014] [Indexed: 01/06/2023]
Abstract
BACKGROUND Clostridium difficile is a major cause of nosocomial diarrhea. The incidence and prognosis of C. difficile-associated diarrhea (CDAD) has not yet been assessed in adult patients after unrelated cord blood transplantation (uCBT). METHODS The medical records of 135 adult unrelated cord blood transplant recipients were reviewed retrospectively to investigate the clinical features of CDAD after uCBT. These data were compared to medical records of 39 unrelated bone marrow transplant recipients and 27 related peripheral blood stem cell transplant recipients as controls. RESULTS A total of 17 recipients developed CDAD, with onset occurring at a median of 22 days (range, 0-56 days) after transplantation. Among the unrelated cord blood transplant recipients, 11 (9%) developed CDAD. These results were comparable with those of CDAD after unrelated bone marrow transplantation (uBMT) (2/39, 6%) and related peripheral blood stem cell transplantation (rPBSCT) (4/27, 16%) (P=0.37). Fifteen of the infected recipients were successfully treated with oral metronidazole, vancomycin, or cessation of antibiotics. The remaining 2 recipients who developed CDAD after uCBT died of other causes. The development of CDAD did not negatively affect overall survival after uCBT. CONCLUSIONS These data indicate that the incidence and prognosis of CDAD after uCBT are comparable with those after uBMT and rPBSCT.
Collapse
Affiliation(s)
- K Hosokawa
- Department of Hematology, Toranomon Hospital, Tokyo, Japan; Cellular Transplantation Biology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
28
|
Tatsumi K, Sugita A, Koganei K, Futatsuki R, Kuroki H, Yamada K, Nakao S, Sako M, Kimura H, Arai K, Fukushima T. [Long-term outcomes of ileal pouch-anal canal anastomosis in children with ulcerative colitis]. Nihon Shokakibyo Gakkai Zasshi 2013; 110:2081-2088. [PMID: 24305096] [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: 06/02/2023]
Abstract
The present study investigated the long-term outcomes of restorative proctocolectomy in pediatric patients with ulcerative colitis (UC). We report a series of 25 patients who underwent total proctocolectomy with ileal pouch-anal canal anastomosis (IACA). Surgery was performed for medically intractable colitis and severe colitis in 14 and 11 patients, respectively. Early and late complications were observed in 6 (24%) and 14 (56%) patients, respectively. The long-term quality of life outcomes were satisfactory, including both bowel function and social function. Growth retardation was observed in 6 patients. Five patients exhibited catch-up growth and 3 patients overcame growth retardation. Patients with growth retardation tended to have a younger onset and longer duration of UC, as well as a longer duration and higher total dose of steroid use. In conclusion, the long-term outcomes of pediatric patients with UC undergoing IACA are satisfactory. Furthermore, to minimize the risk of growth retardation, surgery should be performed without delay.
Collapse
Affiliation(s)
- Kenji Tatsumi
- Department of Surgery, Yokohama Municipal Citizen's Hospital
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
29
|
Akiyama-Abe A, Minaguchi T, Nakamura Y, Michikami H, Shikama A, Nakao S, Sakurai M, Ochi H, Onuki M, Matsumoto K, Satoh T, Oki A, Yoshikawa H. Loss of PTEN expression is an independent predictor of favourable survival in endometrial carcinomas. Br J Cancer 2013; 109:1703-10. [PMID: 23949151 PMCID: PMC3776978 DOI: 10.1038/bjc.2013.455] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2013] [Revised: 07/16/2013] [Accepted: 07/19/2013] [Indexed: 11/29/2022] Open
Abstract
Background: We and others previously reported the prognostic significance of PTEN mutational status on favourable survival in endometrial carcinomas. Here, we demonstrate that loss of PTEN expression in immunohistochemistry is an independent prognostic marker for favourable survival in endometrial carcinomas. Methods: We conducted immunohistochemical analyses of PTEN, PIK3CA, phosphorylated Akt (p-Akt), and p27 in primary endometrial carcinomas from 221 patients. Mutation of PTEN was analysed further. Results: Expression of PTEN was lost in 56 patients (25%), and PIK3CA was overexpressed in 159 patients (72%). Overexpression of PIK3CA was associated with p-Akt overexpression (P<0.001), which was in turn associated with loss of nuclear p27 expression (P=0.028). Loss of PTEN expression was found to be associated with endometrioid histology (P=0.03), and was inversely associated with the presence of lymphovascular space invasion (P=0.03). Univariate and multivariate survival analyses revealed that factors of PTEN loss, age <70, histological grade 1, early International Federation of Gynecology and Obstetrics (FIGO) stage, and absence of lymphovascular invasion were independent prognostic indicators for better overall survival (P=0.03, 0.04, 0.01, <0.001, and 0.03, respectively). The subset analysis showed a stronger tendency of PTEN loss towards favourable survival in advanced-stage (III and IV) disease than in early-stage (I and II) disease (P=0.05 vs 0.14). Moreover, our mutational analysis demonstrated that PTEN expression loss was associated with PTEN-truncating mutations (P=0.03). Conclusion: The current observations further support the prognostic significance of PTEN aberration on favourable outcome in endometrial carcinomas, providing useful implications for the individualised management of the disease.
Collapse
Affiliation(s)
- A Akiyama-Abe
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
30
|
Ikeda H, Kasahara K, Koba H, Kurokawa K, Nishikawa S, Sakai A, Tanbo Y, Araya T, Sone T, Fukuoka J, Fujimura M, Nakao S. Prognostic Impact of C-MET/phospho-MET and Topoisomerase I in Small-Cell Lung Cancer. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)32440-6] [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: 11/15/2022] Open
|
31
|
Hayashi H, Miyagi Y, Sekiyama A, Yoshida S, Nakao S, Okamoto N, Koganei K, Sugita A. Colorectal small cell carcinoma in ulcerative colitis with identical rare p53 gene mutation to associated adenocarcinoma and dysplasia. J Crohns Colitis 2012; 6:112-5. [PMID: 22261536 DOI: 10.1016/j.crohns.2011.08.009] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2011] [Revised: 08/09/2011] [Accepted: 08/11/2011] [Indexed: 02/07/2023]
Abstract
Colorectal small cell carcinomas (SCCs) are rare tumors and are infrequently associated with ulcerative colitis (UC). We report a case of primary rectal SCC combined with adenocarcinoma arising in left-sided UC. Immunohistochemically, tumor cells were positive for chromogranin A, synaptophysin, and CD56 in the SCC but not in the adenocarcinoma. The patient simultaneously developed multiple lesions of adenocarcinoma and high-grade dysplasia in the sigmoid colon and rectum. To elucidate whether SCC might evolve from multipotential cells in dysplasia and/or adenocarcinoma, we examined the mutational status of TP53 and KRAS. The same clonality of these lesions including SCC was confirmed by the presence of an identical single nucleotide point mutation in TP53. KRAS mutation was not observed in these lesions. Thus, these lesions seem to have developed from the same origin. Long-standing inflammation leading to dysplasia might be responsible for the development of some SCCs in UC particularly when they are combined with dysplasia and/or adenocarcinoma.
Collapse
Affiliation(s)
- Hiroyuki Hayashi
- Department of Pathology, Yokohama Municipal Citizen's Hospital, 56 Okazawa-cho, Hodogaya-ku, Yokohama 240-8555, Japan.
| | | | | | | | | | | | | | | |
Collapse
|
32
|
Hosokawa K, Yamazaki H, Mochizuki K, Ohata K, Ishiyama K, Hayashi T, Kondo Y, Sugimori N, Okumura H, Takami A, Nakao S. Successful treatment of Trichosporon fungemia in a patient with refractory acute myeloid leukemia using voriconazole combined with liposomal amphotericin B. Transpl Infect Dis 2011; 14:184-7. [PMID: 22093149 DOI: 10.1111/j.1399-3062.2011.00670.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2010] [Revised: 02/27/2011] [Accepted: 06/28/2011] [Indexed: 11/27/2022]
Abstract
Trichosporon fungemia is a rare and fatal fungal infection that occurs in patients with prolonged neutropenia associated with hematologic malignancies. A 21-year-old male developed Trichosporon fungemia during remission induction therapy for acute myeloid leukemia (AML). Although two courses of induction therapy failed to induce a remission of AML, combination therapy with voriconazole and liposomal amphotericin B (L-AmB) followed by monocyte colony-stimulating factor ameliorated the Trichosporon fungemia and enabled the patient to receive reduced-intensity bone marrow transplantation (BMT) from his human leukocyte antigen-A one-locus mismatched mother. The patient achieved a durable remission after BMT without exacerbation of Trichosporon fungemia. The combination therapy with voriconazole and L-AmB may therefore be useful in controlling Trichosporon fungemia associated with prolonged neutropenia after remission induction therapy for AML.
Collapse
Affiliation(s)
- K Hosokawa
- Cellular Transplantation Biology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
33
|
Suzuki S, Fukushima R, Ishikawa T, Hamabe L, Aytemiz D, Huai-Che H, Nakao S, Machida N, Tanaka R. The effect of pimobendan on left atrial pressure in dogs with mitral valve regurgitation. J Vet Intern Med 2011; 25:1328-33. [PMID: 22092624 DOI: 10.1111/j.1939-1676.2011.00800.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2011] [Revised: 07/28/2011] [Accepted: 08/10/2011] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND The effects of pimobendan on left atrial pressure (LAP) in dogs with mitral valve disease (MR) have not been documented in a quantitative manner. OBJECTIVE The objective was to document and study the short-term effects of pimobendan on LAP and echocardiographic parameters in MR dogs. ANIMALS Eight healthy Beagle dogs weighing 10.0-14.7 kg (3 males and 5 females; aged 2 years) were used. METHODS Experimental, cross-over, and interventional study. Dogs with surgically induced MR received pimobendan at either 0.25 mg/kg or 0.50 mg/kg p.o. q12h for 7 days and then, after a 7-day wash-out period, the other dosage. LAP was measured for 30 minutes at baseline and again on days 1, 2, 4, and 7 of pimobendan administration. RESULTS Mean LAP was significantly decreased after the administration of 0.25 mg/kg (15.81 ± 5.44 mmHg to 12.67 ± 5.71 mmHg, P < .001) and 0.50 mg/kg (15.76 ± 5.45 mmHg to 10.77 ± 5.23 mmHg, P < .001). Also, the 0.50 mg/kg group led to a significantly lower LAP (P < .01) compared with the 0.25 mg/kg group. Significant reduction was seen for the first time 4 days after the administration of 0.25 mg/kg and a day after the administration of 0.50 mg/kg. CONCLUSIONS AND CLINICAL IMPORTANCE Pimobendan decreased LAP in a dose-dependent manner in dogs with acute MR caused by experimental chordal rupture. This study did not evaluate adverse effects of high-dose pimobendan, and additional studies in clinical patients are warranted.
Collapse
Affiliation(s)
- S Suzuki
- Department of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | | | | | | | | | | | | | | | | |
Collapse
|
34
|
Ishiyama K, Takami A, Kanda Y, Nakao S, Hidaka M, Maeda T, Naoe T, Taniguchi S, Kawa K, Nagamura T, Atsuta Y, Sakamaki H. Allogeneic hematopoietic stem cell transplantation for acute myeloid leukemia with t(6;9)(p23;q34) dramatically improves the patient prognosis: a matched-pair analysis. Leukemia 2011; 26:461-4. [PMID: 21869835 DOI: 10.1038/leu.2011.229] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Acute myeloid leukemia (AML) with t(6;9)(p23;q34) is well known to have a poor prognosis treated with chemotherapy and autotransplantation. The presence of this karyotype is an indicator for allogeneic hematopoietic stem cell transplantation (HSCT); however, the impact of t(6;9)(p23;q34) on the HSCT outcome remains unclear. We conducted a matched-pair analysis of de novo AML patients with and without t(6;9)(p23;q34) using data obtained from the Japanese HSCT data registry. A total of 57 patients with t(6;9)(p23;q34) received transplants between 1996 and 2007, and 171 of 2056 normal karyotype patients matched for age, disease status at HSCT and graft source were selected. The overall survival, disease-free survival, cumulative incidence of relapse and the non-relapse mortality in t(6;9)(p23;q34) patients were comparable to those for normal karyotype patients. A univariate analysis showed that t(6;9)(p23;q34) had no significant impact on the overall survival. These findings suggest that allogeneic HSCT may overcome the unfavorable impact of t(6;9)(p23;q34) as an independent prognostic factor.
Collapse
Affiliation(s)
- K Ishiyama
- Department of Cellular Transplantation Biology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
35
|
Ishiyama K, Katagiri T, Ohata K, Hosokawa K, Kondo Y, Yamazaki H, Takami A, Nakao S. Safety of pre-engraftment prophylactic foscarnet administration after allogeneic stem cell transplantation. Transpl Infect Dis 2011; 14:33-9. [DOI: 10.1111/j.1399-3062.2011.00662.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
36
|
Espinoza JL, Takami A, Onizuka M, Kawase T, Sao H, Akiyama H, Miyamura K, Okamoto S, Inoue M, Ohtake S, Fukuda T, Morishima Y, Kodera Y, Nakao S. A single nucleotide polymorphism of IL-17 gene in the recipient is associated with acute GVHD after HLA-matched unrelated BMT. Bone Marrow Transplant 2011; 46:1455-63. [DOI: 10.1038/bmt.2010.325] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
37
|
Matsumoto K, Oki A, Satoh T, Okada S, Minaguchi T, Onuki M, Ochi H, Nakao S, Sakurai M, Abe A, Hamada H, Yoshikawa H. Interleukin-10 -1082 Gene Polymorphism and Susceptibility to Cervical Cancer Among Japanese Women. Jpn J Clin Oncol 2010; 40:1113-6. [DOI: 10.1093/jjco/hyq094] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
38
|
Nakayama Y, Yang L, Mezawa M, Araki S, Li Z, Wang Z, Sasaki Y, Takai H, Nakao S, Fukae M, Ogata Y. Effects of porcine 25 kDa amelogenin and its proteolytic derivatives on bone sialoprotein expression. J Periodontal Res 2010; 45:602-11. [PMID: 20546115 DOI: 10.1111/j.1600-0765.2010.01272.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND OBJECTIVE Amelogenins are hydrophobic proteins that are the major component of developing enamel. Enamel matrix derivative has been used for periodontal regeneration. Bone sialoprotein is an early phenotypic marker of osteoblast differentiation. In this study, we examined the ability of porcine amelogenins to regulate bone sialoprotein transcription. MATERIAL AND METHODS To determine the molecular basis of the transcriptional regulation of the bone sialoprotein gene by amelogenins, we conducted northern hybridization, transient transfection analyses and gel mobility shift assays using the osteoblast-like ROS 17/2.8 cells. RESULTS Amelogenins (100 ng/mL) up-regulated bone sialoprotein mRNA at 3 h, with maximal mRNA expression occurring at 12 h (25 and 20 kDa) and 6 h (13 and 6 kDa). Amelogenins (100 ng/mL, 12 h) increased luciferase activities in pLUC3 (nucleotides -116 to +60), and 6 kDa amelogenin up-regulated pLUC4 (nucleotides -425 to +60) activity. The tyrosine kinase inhibitor inhibited amelogenin-induced luciferase activities, whereas the protein kinase A inhibitor abolished 25 kDa amelogenin-induced bone sialoprotein transcription. The effects of amelogenins were abrogated by 2-bp mutations in the fibroblast growth factor 2 response element (FRE). Gel-shift assays with radiolabeled FRE, homeodomain-protein binding site (HOX) and transforming growth factor-beta1 activation element (TAE) double-strand oligonucleotides revealed increased binding of nuclear proteins from amelogenin-stimulated ROS 17/2.8 cells at 3 h (25 and 13 kDa) and 6 h (20 and 6 kDa). CONCLUSION These results demonstrate that porcine 25 kDa amelogenin and its proteolytic derivatives stimulate bone sialoprotein transcription by targeting FRE, HOX and TAE in the bone sialoprotein gene promoter, and that full-length amelogenin and amelogenin cleavage products are able to regulate bone sialoprotein transcription via different signaling pathways.
Collapse
Affiliation(s)
- Y Nakayama
- Department of Periodontology, Nihon University School of Dentistry at Matsudo, Matsudo, Chiba, Japan
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
39
|
Tambo Y, Kasahara K, Sone T, Kimura H, Sakai A, Araya T, Ueda A, Fujimura M, Nakao S. Prognostic and predictive impact of EGFR and K-ras mutation, and EGFR gene copy number in patients with advanced non-small cell lung cancer (NSCLC) who received first-line cytotoxic chemotherapy. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.8096] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
8096 Background: Epidermal growth factor receptor (EGFR) mutations, amplification, and K-ras mutations are known as predictive factor of the EGFR tyrosine kinase inhibitor (EGFR-TKI) therapy in patients (pts) with NSCLC. Prognostic influences of those biomarkers remain the matter to be discussed. Methods: Consecutive pts with advanced NSCLC who were examined EGFR genotype and received 1st line cytotoxic chemotherapy were enrolled. EGFR amplification and K-ras mutation were analyzed if sufficient tumor samples were available. Results: 87 pts were enrolled in this study. EGFR mutations or K-ras mutations were found in 26 of 87 (29.9%) or 2 of 65 (3.1%) pts, respectively. As to objective response rate (ORR), no significant differences were observed among pts with EGFR mutations, K-ras mutations, and pts without both mutations. Progression free survival (PFS) in 1st line cytotoxic chemotherapy was 8.4, 1.0, and 3.9 months in pts with EGFR mutations, with K-ras mutations, and pts without both mutations, respectively. PFS was longer in pts with EGFR mutations compared with the pts without both mutations (p=0.0234). We also found the pts with K-ras mutations had shorter PFS compared with pts without both mutations (p=0.0203). Overall survival (OS) was 29.7, 2.3 and 13.4 months in pts with EGFR mutations, with K-ras mutations, and pts without both mutations, respectively. Significant differences were found between pts with EGFR mutation and without both mutations (p=0.0001) and between pts without both mutations and with K-ras mutations (p=0.0001). Pts with EGFR amplification were found in 21 of 78 (26.9%). There were no differences between EGFR amplification positive and negative in terms of ORR, PFS and OS. 87 of 68 (78.2%) pts received EGFR-TKI therapy in the second line or later. As previously reported, both EGFR mutations and amplifications were good predictive marker of ORR, PFS and OS in pts treated with EGFR-TKI. Conclusions: EGFR mutations were good predictive marker and K-ras mutations were poor predictive marker in first line cytotoxic chemotherapy. There is the possibility that EGFR and K-ras mutations have the prognostic impact in advanced NSCLC. [Table: see text]
Collapse
Affiliation(s)
- Y. Tambo
- Kanazawa University Hospital, Kanazawa, Ishikawa, Japan; NHO Kanazawa Medical Center, Kanazawa, Japan; Komatsu Municipal Hospital, Kanazawa, Ishikawa, Japan
| | - K. Kasahara
- Kanazawa University Hospital, Kanazawa, Ishikawa, Japan; NHO Kanazawa Medical Center, Kanazawa, Japan; Komatsu Municipal Hospital, Kanazawa, Ishikawa, Japan
| | - T. Sone
- Kanazawa University Hospital, Kanazawa, Ishikawa, Japan; NHO Kanazawa Medical Center, Kanazawa, Japan; Komatsu Municipal Hospital, Kanazawa, Ishikawa, Japan
| | - H. Kimura
- Kanazawa University Hospital, Kanazawa, Ishikawa, Japan; NHO Kanazawa Medical Center, Kanazawa, Japan; Komatsu Municipal Hospital, Kanazawa, Ishikawa, Japan
| | - A. Sakai
- Kanazawa University Hospital, Kanazawa, Ishikawa, Japan; NHO Kanazawa Medical Center, Kanazawa, Japan; Komatsu Municipal Hospital, Kanazawa, Ishikawa, Japan
| | - T. Araya
- Kanazawa University Hospital, Kanazawa, Ishikawa, Japan; NHO Kanazawa Medical Center, Kanazawa, Japan; Komatsu Municipal Hospital, Kanazawa, Ishikawa, Japan
| | - A. Ueda
- Kanazawa University Hospital, Kanazawa, Ishikawa, Japan; NHO Kanazawa Medical Center, Kanazawa, Japan; Komatsu Municipal Hospital, Kanazawa, Ishikawa, Japan
| | - M. Fujimura
- Kanazawa University Hospital, Kanazawa, Ishikawa, Japan; NHO Kanazawa Medical Center, Kanazawa, Japan; Komatsu Municipal Hospital, Kanazawa, Ishikawa, Japan
| | - S. Nakao
- Kanazawa University Hospital, Kanazawa, Ishikawa, Japan; NHO Kanazawa Medical Center, Kanazawa, Japan; Komatsu Municipal Hospital, Kanazawa, Ishikawa, Japan
| |
Collapse
|
40
|
Nakao S. 3 Diagnosis of immune pathophysiology in patients with low-risk MDS. Leuk Res 2009. [DOI: 10.1016/s0145-2126(09)70003-7] [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]
|
41
|
Kurita A, Takase B, Hikita H, Uehata A, Nishioka T, Nagayoshi H, Satomura K, Nakao S. Frequency domain heart rate variability and plasma norepinephrine level in the coronary sinus during handgrip exercise. Clin Cardiol 2009; 22:207-12. [PMID: 10084063 PMCID: PMC6656154 DOI: 10.1002/clc.4960220309] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Heart rate (HR) variability has been recognized as an important noninvasive index of autonomic nervous activities. However, the relationship between HR variability and cardiac circulating norepinephrine (NE), especially with respect to coronary ischemia, remains unclear. HYPOTHESIS This study was undertaken to determine whether HR variability indices can reflect cardiac NE levels during handgrip exercise. METHODS We simultaneously measured HR variability and cardiac NE overflow rate in 32 patients (30 men, 2 women) during a 6-min isometric handgrip exercise. Among the 32 subjects, 20 (19 men, 1 woman) had coronary artery disease (CAD) and 12 (control group; 11 men, 1 woman) did not. RESULTS Hemodynamics and cardiac NE overflow rates among subjects at rest were not significantly different between the two groups. In the normal subjects, low-frequency (LF) spectra and LF/HF (high-frequency) ratios were not significantly changed during handgrip exercise, but HF spectra significantly increased from 10.1 +/- 4.5 to 12.2 +/- 7.0 ms (p < 0.05). In the subjects with CAD, LF and LF/HF spectra were significantly (p < 0.05 and 0.01, respectively) increased by handgrip exercise. High-frequency spectra were not significantly changed by handgrip exercise. In the normal subjects, a significant negative relation (r = -0.76, p < 0.01) was obtained between HF change and cardiac NE overflow rate, whereas this relationship was not significant in the subjects with CAD. The correlation between changes of LF/HF and cardiac NE overflow rate was significant in the normal (r = 0.56, p < 0.05) but not in subjects with CAD. CONCLUSION These results suggest that vagal modulation of HR variability is more prominent in normal coronary artery subjects than in CAD subjects during handgrip exercise. Heart rate variability indices may thus serve as adequate indicators of autonomic nerve activity in subjects with normal coronary arteries but not in those with CAD, probably due to decreased adaptation to physical stress during handgrip exercise.
Collapse
Affiliation(s)
- A Kurita
- Division of Biomedical Engineering, National Defense Medical College, Saitama, Japan
| | | | | | | | | | | | | | | |
Collapse
|
42
|
Hata Y, Sassa Y, Kita T, Miura M, Kano K, Kawahara S, Arita R, Nakao S, Shih JL, Ishibashi T. Vascular endothelial growth factor expression by hyalocytes and its regulation by glucocorticoid. Br J Ophthalmol 2008; 92:1540-4. [PMID: 18952656 DOI: 10.1136/bjo.2008.141002] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
AIM Tumour necrosis factor-alpha (TNF-alpha) is one of the major inflammatory cytokines involved in the pathogenesis of various vitreoretinal diseases. The authors investigated the effect of hypoxia, TNF-alpha and dexamethasone on vascular endothelial growth factor (VEGF) expression by cultured hyalocytes. METHODS Hyalocytes were isolated from bovine vitreous. Hypoxic and TNF-alpha-dependent effects on cultured hyalocytes were investigated using several assays to determine VEGF protein expression, hypoxia-inducible factor (HIF)-1alpha protein levels, HIF-1alpha-DNA-binding ability and VEGF mRNA stability. The effects of dexamethasone on VEGF expression and its intracellular signalling under hypoxic or TNF-alpha stimulated conditions were also examined. RESULTS Hypoxic conditions and TNF-alpha stimulation induce VEGF expression in hyalocytes. These stimuli also stabilise HIF-1alpha protein and increase its DNA-binding ability. Dexamethasone significantly inhibits both HIF-1alpha protein levels and HIF-1alpha-DNA-binding activity, and also decreases the hypoxic- and TNF-alpha -dependent induction of VEGF expression in hyalocyte. However, dexamethasone has no significant effect on the stability of VEGF mRNA. CONCLUSIONS Hyalocytes may be involved in various vitreoretinal diseases by increasing HIF-1alpha protein stability and HIF-1alpha-DNA binding, and thus increasing VEGF production under pathological conditions. Dexamethasone seems to be capable of inhibiting hypoxic and TNF-alpha dependent VEGF production, presumably via its inhibitory effects on HIF-1alpha protein levels and its DNA-binding activity.
Collapse
Affiliation(s)
- Y Hata
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
43
|
Suzuki A, Yabushita Y, Takahashi H, Inamori M, Nakao S, Suzuki K, Iida H, Endo H, Akiyama T, Ikeda T, Sakamoto Y, Fujita K, Yoneda M, Goto A, Abe Y, Kirikoshi H, Kobayashi N, Kubota K, Saito S, Nakajima A. Education and imaging. Gastrointestinal: ascariasis. J Gastroenterol Hepatol 2008; 23:1770. [PMID: 19120863 DOI: 10.1111/j.1440-1746.2008.05662.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- A Suzuki
- Gastroenterology Division, Yokohama City University School of Medicine, Yokohama, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
44
|
Fujishima N, Sawada KI, Hirokawa M, Oshimi K, Sugimoto K, Matsuda A, Teramura M, Karasawa M, Arai A, Yonemura Y, Nakao S, Urabe A, Omine M, Ozawa K. Long-term responses and outcomes following immunosuppressive therapy in large granular lymphocyte leukemia-associated pure red cell aplasia: a Nationwide Cohort Study in Japan for the PRCA Collaborative Study Group. Haematologica 2008; 93:1555-9. [DOI: 10.3324/haematol.12871] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
|
45
|
Yoshida C, Nakao S, Goda A, Naito Y, Matsumoto M, Otsuka M, Shimoshikiryo M, Eguchi A, Lee-Kawabata M, Tsujino T, Masuyama T. Value of assessment of left atrial volume and diameter in patients with heart failure but with normal left ventricular ejection fraction and mitral flow velocity pattern. European Journal of Echocardiography 2008; 10:278-81. [DOI: 10.1093/ejechocard/jen234] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
46
|
Nishio M, Endo T, Nakao S, Sato N, Koike T. Reversible cardiomyopathy due to secondary hemochromatosis with multitransfusions for severe aplastic anemia after successful non-myeloablative stem cell transplantation. Int J Cardiol 2008; 127:400-1. [PMID: 17582528 DOI: 10.1016/j.ijcard.2007.04.066] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2007] [Accepted: 04/04/2007] [Indexed: 10/23/2022]
Abstract
A 30-year-old Japanese woman with acquired severe aplastic anemia (SAA), diagnosed 20 years ago, was referred to our institution for allogeneic stem cell transplantation (SCT). As an unusual case of long-standing SAA, the patient was complicated with moderate heart failure due to secondary hemochromatosis. After successful SCT using a non-myeloablative conditioning regimen, she needed no transfusion. Five years after SCT, echocardiography showed a dramatic improvement of her cardiac function. This case indicates that the cardiac function in secondary hemochromatosis could be reversed once iron overload from multitransfusions is stopped.
Collapse
|
47
|
|
48
|
Kimura H, Suminoe M, Kasahara K, Sone T, Araya T, Tamori S, Koizumi F, Nishio K, Miyamoto K, Fujimura M, Nakao S. Evaluation of epidermal growth factor receptor mutation status in serum DNA as a predictor of response to gefitinib (IRESSA). Br J Cancer 2007; 97:778-84. [PMID: 17848912 PMCID: PMC2360394 DOI: 10.1038/sj.bjc.6603949] [Citation(s) in RCA: 173] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
The aim of this study was to evaluate the usefulness of EGFR mutation status in serum DNA as a means of predicting a benefit from gefitinib (IRESSA) therapy in Japanese patients with non-small cell lung cancer (NSCLC). We obtained pairs of tumour and serum samples from 42 patients treated with gefitinib. EGFR mutation status was determined by a direct sequencing method and by Scorpion Amplification Refractory Mutation System (ARMS) technology. EGFR mutations were detected in the tumour samples of eight patients and in the serum samples of seven patients. EGFR mutation status in the tumours and serum samples was consistent in 39 (92.9%) of the 42 pairs. EGFR mutations were strong correlations between both EGFR mutation status in the tumour samples and serum samples and objective response to gefitinib (P<0.001). Median progression-free survival time was significantly longer in the patients with EGFR mutations than in the patients without EGFR mutations (194 vs 55 days, P=0.016, in tumour samples; 174 vs 58 days, P=0.044, in serum samples). The results suggest that it is feasible to use serum DNA to detect EGFR mutation, and that it's potential as a predictor of response to, and survival on gefitinib is worthy of further evaluation.
Collapse
Affiliation(s)
- H Kimura
- Department of Respiratory Medicine, Kanazawa University Hospital, Takara-machi 13-1, Kanazawa, Ishikawa, Japan.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
49
|
Ueba T, Yamashita K, Fujisawa I, Nakao S, Ooyama K, Yorihuji T, Kato SF, Seto S, Kageyama N. Long-term follow-up of 5 patients with intracranial germinoma initially treated by chemotherapy alone. Acta Neurochir (Wien) 2007; 149:897-902; discussion 902. [PMID: 17690837 DOI: 10.1007/s00701-007-1268-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [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: 04/23/2007] [Accepted: 06/26/2007] [Indexed: 11/26/2022]
Abstract
BACKGROUND High rates of overall- and event-free survival have been reported in patients with intracranial germinoma treated by radiotherapy. We report the long-term results after treatment initially with chemotherapy, but without radiation. PATIENTS AND METHOD Five patients with an intracranial germinoma were treated with 2 cycles of etoposide and cisplatin, without radiotherapy. All achieved complete remission; 3 suffered recurrence within 2 years and were again treated with 2 cycles of etoposide and cisplatin followed by radiotherapy. RESULTS At long-term follow-up, each of the 5 patients was in complete remission without further recurrence. Each patient with a neurohypophyseal germinoma who presented with endocrinopathy had initially recovered endocrinological function. CONCLUSION In a patient with a germinoma chemotherapy, and restriction of radiation to those with recurrence may allow restoration of hypophyseal function damaged by the intracranial germinoma without compromising long term survivial.
Collapse
Affiliation(s)
- T Ueba
- Department of Neurosurgery, Kisiwada City Hospital, Osaka, Japan.
| | | | | | | | | | | | | | | | | |
Collapse
|
50
|
Kaneshige T, Machida N, Nakao S, Doiguchi O, Katsuda S, Yamane Y. Complete Atrioventricular Block Associated with Lymphocytic Myocarditis of the Atrioventricular Node in Two Young Adult Dogs. J Comp Pathol 2007; 137:146-50. [PMID: 17673248 DOI: 10.1016/j.jcpa.2007.05.006] [Citation(s) in RCA: 19] [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] [Received: 12/04/2006] [Accepted: 05/28/2007] [Indexed: 11/19/2022]
Abstract
A histological investigation of the atrioventricular (AV) conduction system was performed in two young adult dogs with complete AV block. In both cases, infiltration of lymphocytes and plasma cells into the AV node and loss and disappearance of the conduction fibres were observed. Such inflammatory lesions of the AV conduction system were associated with complete AV block. The aetiology of these changes and the cause of its location at the AV node were not elucidated.
Collapse
Affiliation(s)
- T Kaneshige
- Department of Veterinary Surgery, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | | | | | | | | | | |
Collapse
|