1.En Bloc Spondylectomy for Spinal Metastases: Detailed Oncological Outcomes at a Minimum of 2 Years after Surgery
Masayuki OHASHI ; Toru HIRANO ; Kei WATANABE ; Kazuhiro HASEGAWA ; Takui ITO ; Keiichi KATSUMI ; Hirokazu SHOJI ; Tatsuki MIZOUCHI ; Ikuko TAKAHASHI ; Takao HOMMA ; Naoto ENDO
Asian Spine Journal 2019;13(2):296-304
		                        		
		                        			
		                        			STUDY DESIGN: Retrospective case series. PURPOSE: To investigate the oncological outcomes, including distant relapse, after en bloc spondylectomy (EBS) for spinal metastases in patients with a minimum of 2-year follow-up. OVERVIEW OF LITERATURE: Although EBS has been reported to be locally curative and extend survival in select patients with spinal metastases, detailed reports regarding the control of distant relapse after EBS are lacking. METHODS: We conducted a retrospective review of 18 consecutive patients (median age at EBS, 62 years; range, 40–77 years) who underwent EBS for spinal metastases between 1991 and 2015. The primary cancer sites included the kidney (n=7), thyroid (n=4), liver (n=3), and other locations (n=4). Survival rates were estimated using the Kaplan–Meier method, and groups were compared using the log-rank method. RESULTS: The median operative time and intraoperative blood loss were 767.5 minutes and 2,375 g, respectively. Twelve patients (66.7%) experienced perioperative complications. Five patients (27.8%) experienced local recurrence of the tumor at a median of 12.5 months after EBS, four of which had a positive resection margin status. Thirteen patients (72.2%) experienced distant relapse at a median of 21 months after EBS. The estimated median survival period after distant relapse was 20 months (95% confidence interval, 0.71–39.29 months). No association was found between resection margin status and distant relapse. Overall, the 2-year, 5-year, and 10-year survival rates after EBS were 72.2%, 48.8%, and 27.1%, respectively. Importantly, the era in which EBS was performed did not impact the oncological outcomes. CONCLUSIONS: Our results suggest that EBS by itself, even if margin-free, cannot prevent further dissemination, which occurred in >70% of patients at a median of 21 months after EBS. These results should be considered and conveyed to patients for clinical decision-making.
		                        		
		                        		
		                        		
		                        			Clinical Decision-Making
		                        			;
		                        		
		                        			Follow-Up Studies
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Kidney
		                        			;
		                        		
		                        			Liver
		                        			;
		                        		
		                        			Methods
		                        			;
		                        		
		                        			Neoplasm Metastasis
		                        			;
		                        		
		                        			Operative Time
		                        			;
		                        		
		                        			Recurrence
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Spine
		                        			;
		                        		
		                        			Survival Rate
		                        			;
		                        		
		                        			Thyroid Gland
		                        			
		                        		
		                        	
2.Staged Approach Using Proximal Open-Stenting Technique and Distal Open Repair for the Treatment of Extensive Thoracic Aortic Aneurysms
Toru Mizumoto ; Satoshi Teranishi ; Hisato Ito ; Yasuhiro Sawada ; Naoki Yamamoto ; Shinji Kanemitsu
Japanese Journal of Cardiovascular Surgery 2017;46(3):139-142
A 50-year-old man with an extensive thoracic aortic aneurysm underwent staged surgery which consisted of preceding total aortic arch replacement with the frozen elephant trunk technique using J Graft Open Stent Graft®, followed by open thoracoabdominal aortic aneurysm repair. During the second operation, the descending aorta was cross clamped along with the preexisting stent graft, and Dacron graft was anastomosed directly to the stent graft using a running 4-0 monofilament suture. The anastomosis site was then covered with a short piece of Dacron graft identical with the stent graft in size to secure hemostasis. We herein discuss our approach in this complex case, focusing on prevention of inadvertent events such as deformation of the preexisting stent graft and unexpected bleeding.
3.Freeze-Dried Human Platelet-Rich Plasma Retains Activation and Growth Factor Expression after an Eight-Week Preservation Period.
Yasuhiro SHIGA ; Go KUBOTA ; Sumihisa ORITA ; Kazuhide INAGE ; Hiroto KAMODA ; Masaomi YAMASHITA ; Toru ISEKI ; Michihiro ITO ; Kazuyo YAMAUCHI ; Yawara EGUCHI ; Takeshi SAINOH ; Jun SATO ; Kazuki FUJIMOTO ; Koki ABE ; Hirohito KANAMOTO ; Masahiro INOUE ; Hideyuki KINOSHITA ; Takeo FURUYA ; Masao KODA ; Yasuchika AOKI ; Tomoaki TOYONE ; Kazuhisa TAKAHASHI ; Seiji OHTORI
Asian Spine Journal 2017;11(3):329-336
		                        		
		                        			
		                        			STUDY DESIGN: Controlled laboratory study. PURPOSE: This study aimed to evaluate the efficacy of platelet-rich plasma (PRP) stored at room temperature (RT), frozen, or after freeze-drying. OVERVIEW OF LITERATURE: PRP enriches tissue repair and regeneration, and is a novel treatment option for musculoskeletal pathologies. However, whether biological activity is preserved during PRP storage remains uncertain. METHODS: PRP was prepared from blood of 12 healthy human volunteers (200 mL/person) and stored using three methods: PRP was stored at RT with shaking, PRP was frozen and stored at −80℃, or PRP was freeze-dried and stored at RT. Platelet counts and growth factor content were examined immediately after preparation, as well as 2, 4, and 8 weeks after storage. Platelet activation rate was quantified by flow cytometry. RESULTS: Platelet counts were impossible to determine in many RT samples after 2 weeks, but they remained at constant levels in frozen and freeze-dried samples, even after 8 weeks of storage. Flow cytometry showed approximately 80% activation of the platelets regardless of storage conditions. Almost no growth factors were detected in the RT samples after 8 weeks, while low but significant expression was detected in the frozen and freeze-dried PRP. Over time, the mean relative concentrations of various growth factors decreased significantly or disappeared in the RT group. In the frozen group, levels were maintained for 4 weeks, but decreased significantly by 8 weeks (p <0.05). The freeze-dried group maintained baseline levels of growth factors for the entire 8-week duration. CONCLUSIONS: Freeze-drying enables PRP storage while maintaining bioactivity and efficacy for extended periods.
		                        		
		                        		
		                        		
		                        			Blood Preservation
		                        			;
		                        		
		                        			Flow Cytometry
		                        			;
		                        		
		                        			Freeze Drying
		                        			;
		                        		
		                        			Healthy Volunteers
		                        			;
		                        		
		                        			Humans*
		                        			;
		                        		
		                        			Intercellular Signaling Peptides and Proteins
		                        			;
		                        		
		                        			Pathology
		                        			;
		                        		
		                        			Platelet Activation
		                        			;
		                        		
		                        			Platelet Count
		                        			;
		                        		
		                        			Platelet-Rich Plasma*
		                        			;
		                        		
		                        			Regeneration
		                        			
		                        		
		                        	
4.Survey on Customer Satisfaction for Evaluation and Improvement of Physical Assessment Practical Training Seminar for Pharmacists
Toru Otori ; Tomomi Inoue ; Koichi Hosomi ; Hiroyuki Nakagawa ; Keiko Takashima ; Hisami Kondo ; Tsugumi Takada ; Eiji Ito ; Takashi Nakayama ; Tetsuyuki Wada ; Shunji Ishiwata ; Tomohiro Maegawa ; Yoshinori Funakami ; Shinya Nakamura ; Yoshie Kubota ; Atsushi Hiraide ; Kenji Matsuyama ; Shozo Nishida
Japanese Journal of Social Pharmacy 2016;35(2):94-101
In the areas of home medical care and self-medication, the role of the pharmacist is growing, partly as a result of Japan’s aging society and the need to reduce medical costs. In response, the Kinki University Faculty of Pharmacy implemented a physical assessment practical training seminar in order to improve the physical assessment skills of practicing pharmacists. A series of questionnaires were conducted among pharmacists to investigate their perceptions of physical assessment practical training seminars. The results of the questionnaires were analyzed using Customer Satisfaction (CS) analysis and text mining. Based on a 5-point scale (1-low∼5-high), questionnaires revealed satisfaction for physical assessment practical training seminars was 4.6±0.6 (Ave.±S.D.). CS analysis revealed that the items “lectures” and “case seminars” had the highest level of satisfaction. However, items showing low levels of satisfaction were “auscultation of respiratory sounds” and “SBAR (Situation, Background, Assessment, Recommendation).” Results of text mining suggested a relationship between “physical assessment” and “difficult”. Analysis of the questionnaires showed a high level satisfaction with physical assessment practical training seminars, notably physical assessment practice methods. However, CS analysis and text mining indicate the finer techniques of physical assessment were difficult to acquire.
5.Creating a list of psycho-social problems and solutions for patients with pancreatic cancer by applying the social problem-solving process
Mariko Shiozaki ; Atsuko Sakami ; Takayuki Satoh ; Hidetoshi Eguchi ; Masahiro Tanemura ; Toru Kitagawa ; Toshinori Ito ; Kei Hirai
Palliative Care Research 2015;10(3):186-193
		                        		
		                        			
		                        			Purpose: The aim of this study was to create a list of psycho-social problems and solutions for patients with pancreatic cancer by applying the social problem-solving process. Methods: A semi-structured interview of approximately 1 hour was conducted on two occasions. The participants were 17 patients with pancreatic cancer. Results: Psycho-social problems were divided into two themes: “facing the future uncertainty” and “facing the effects of treatment received”. A list of problems and solutions was created for each problem theme. Realistic goals for “facing the future uncertainty” were ‘maintaining this living condition (n=7)’, ‘preparing for changes to the environment (n=5)’, ‘keeping a sense of control over my own life (n=5)’ and ‘dealing with anxiety (n=3)’. Realistic goals for “facing the effects of treatment received” were ‘restoring the self of pre-illness(n=2)’. Conclusion: For seemingly unsolvable problems, patients can formulate realistic goals that they want to have clarified, and then the problems can be recaptured as solvable problems.
		                        		
		                        		
		                        		
		                        	
6.Clinical Background and Hospitalization Progress in Patients with Acute Myocardial Infarction Who Experienced Cardiac Rehabilitation
Hiroaki TATSUKI ; Yasuhiro NOMA ; Tomoko KAWAHARA ; Masashi KAWABATA ; Toru AIZAWA ; Atsushi MATSUZAKI ; Yasunari HOSHIBA ; Tatsuya SUGIHARA ; Yota KAWAMURA ; Daiki ITO ; Harukazu ISEKI
Journal of the Japanese Association of Rural Medicine 2012;61(1):16-26
		                        		
		                        			
		                        			Purpose: To compare the effects of aging in patients with acute myocardial infarction (AMI) on their clinical background and hospitalization progress, and to examine the relationships between age and these factors.
Subject: One hundred and fifty-three patients who experienced cardiac rehabilitation after percutaneous coronary intervention (PCI) (63.8±11.1 y.o, 126 men, 27 women).
Method: The patients were divided into the middle aged group (<65 y.o, n=84), young old group (65 to 74 y.o, n=44), and old group (75 y.o≥ n=25). The differences between groups were examined in respect of 13 items about clinical backgrounds (responsibility coronary arteries, CKmax, LVEF, residual stenosis, hypertension, diabetes, hyperlipemia, smoking, and BMI) and hospitalization progress (cardiac complications, locomotorium disabilities, abnormality as 200mECG, and duration of hospitalization).
Results: Left veticular ejection fraction (LVEF) was significantly lower in the old group than in the young old group. The old group had a high rate of residual stenosis. In the coronary risk factors, all of the groups had hypertension at a high rate of 54.5% or over. The middle aged group and young old group had diabetes at about 38%. The middle aged group was prone to hyperlipemia, and had significantly a high smoking rate. Body mass index (BMI) was significantly higher in the middle aged group than in the old group. In hospitalization progress, the old group had a high rate of cardiac complications and locomotorium disability. The duration of hospitalization was significantly longer in the old group than in the other groups.
Conclusion: It would be necessary to give middle-aged persons educational guidance for the improvement of the coronary risk factors, and to provide the old persons with the suitable rehabilitation programs considering various complications.
		                        		
		                        		
		                        		
		                        	
7.Successful treatment of painful internal hemorrhoids using aluminum potassium sulfate and tannic acid (ALTA) injection therapy in a terminal-stage patient
Palliative Care Research 2012;7(2):562-567
		                        		
		                        			
		                        			A 75-year-old man with end-stage colon cancer began to experience increased pain and distress and significantly deteriorated quality of life (QOL) due to internal hemorrhoids. In order to maintain the patient's QOL, the hemorrhoids were successfully treated with aluminum potassium sulfate and tannic acid (ALTA) injection, which involves minimal patient burden and pain. The outcome of this case suggests that ALTA might be useful and effective for the treatment of internal hemorrhoids in terminally ill cancer patients.
		                        		
		                        		
		                        		
		                        	
8.The role of the CNOT1 subunit of the CCR4-NOT complex in mRNA deadenylation and cell viability.
Kentaro ITO ; Akinori TAKAHASHI ; Masahiro MORITA ; Toru SUZUKI ; Tadashi YAMAMOTO
Protein & Cell 2011;2(9):755-763
		                        		
		                        			
		                        			The human CCR4-NOT deadenylase complex consists of at least nine enzymatic and non-enzymatic subunits. Accumulating evidence suggests that the non-enzymatic subunits are involved in the regulation of mRNA deadenylation, although their precise roles remain to be established. In this study, we addressed the function of the CNOT1 subunit by depleting its expression in HeLa cells. Flow cytometric analysis revealed that the sub G(1) fraction was increased in CNOT1-depleted cells. Virtually, the same level of the sub G1 fraction was seen when cells were treated with a mixture of siRNAs targeted against all enzymatic subunits, suggesting that CNOT1 depletion induces apoptosis by destroying the CCR4-NOT-associated deadenylase activity. Further analysis revealed that CNOT1 depletion leads to a reduction in the amount of other CCR4-NOT subunits. Importantly, the specific activity of the CNOT6L immunoprecipitates-associated deadenylase from CNOT1-depleted cells was less than that from control cells. The formation of P-bodies, where mRNA decay is reported to take place, was largely suppressed in CNOT1-depleted cells. Therefore, CNOT1 has an important role in exhibiting enzymatic activity of the CCR4-NOT complex, and thus is critical in control of mRNA deadenylation and mRNA decay. We further showed that CNOT1 depletion enhanced CHOP mRNA levels and activated caspase-4, which is associated with endoplasmic reticulum ER stress-induced apoptosis. Taken together, CNOT1 depletion structurally and functionally deteriorates the CCR4-NOTcomplex and induces stabilization of mRNAs, which results in the increment of translation causing ER stress-mediated apoptosis. We conclude that CNOT1 contributes to cell viability by securing the activity of the CCR4-NOT deadenylase.
		                        		
		                        		
		                        		
		                        			Apoptosis
		                        			;
		                        		
		                        			Caspases, Initiator
		                        			;
		                        		
		                        			genetics
		                        			;
		                        		
		                        			metabolism
		                        			;
		                        		
		                        			Cell Survival
		                        			;
		                        		
		                        			Endoplasmic Reticulum
		                        			;
		                        		
		                        			enzymology
		                        			;
		                        		
		                        			Enzyme Activation
		                        			;
		                        		
		                        			Flow Cytometry
		                        			;
		                        		
		                        			HEK293 Cells
		                        			;
		                        		
		                        			HeLa Cells
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Protein Subunits
		                        			;
		                        		
		                        			genetics
		                        			;
		                        		
		                        			metabolism
		                        			;
		                        		
		                        			RNA Stability
		                        			;
		                        		
		                        			RNA, Messenger
		                        			;
		                        		
		                        			analysis
		                        			;
		                        		
		                        			RNA, Small Interfering
		                        			;
		                        		
		                        			genetics
		                        			;
		                        		
		                        			metabolism
		                        			;
		                        		
		                        			Ribonucleases
		                        			;
		                        		
		                        			metabolism
		                        			;
		                        		
		                        			Stress, Physiological
		                        			;
		                        		
		                        			Transcription Factor CHOP
		                        			;
		                        		
		                        			genetics
		                        			;
		                        		
		                        			metabolism
		                        			;
		                        		
		                        			Transcription Factors
		                        			;
		                        		
		                        			genetics
		                        			;
		                        		
		                        			metabolism
		                        			;
		                        		
		                        			Transfection
		                        			
		                        		
		                        	
9.Histological Investigation of the Development of the Anlage of the Mandibular Condyle of Mouse
Kohzo Tsuchikawa ; Masahiko Kumakura ; Toru Kuwahara ; Hidetoshi Ito
Oral Science International 2010;7(2):66-71
		                        		
		                        			
		                        			To elucidate the histological findings of the anlage of the mandibular condyle during very early developmental stages, we analyzed sagittal and frontal plane serial sections of mouse fetuses for which the gestational period was precisely determined. An aggregate of mesenchymal cells around the buccal nerve (peripheral cell aggregate) could be seen at 12.0 days post-conception (dpc). Another cell aggregate (core cell aggregate), which almost coincided with the outline of the condylar head, was detected on the inside of the dome-shaped peripheral cell aggregate at 12.75 dpc. The cells of the peripheral cell aggregate were gradually flattened in accordance with cell differentiation, and formed a fibrous sheath covering the condylar head by 15.0 dpc. The cells of the central region of the core cell aggregate differentiated into hypertrophic chondrocytes by 14.5 dpc, whereas the cells of the fringe of the core cell aggregate differentiated into osteogenic cells to form the bone collar by 15.0 dpc. The continuity of the anlage of the condyle with that of the mandibular ramus was first recognized at 13.0 dpc. As the anlage of the mandibular condyle was observed histologically during very early developmental stages, further research is necessary to characterize the development of this anlage in greater detail.
		                        		
		                        		
		                        		
		                        	
10.A program for medical students to experience nursing services:Educational significance and related issues
Akihiro SAKURAI ; Tomoki KOSHO ; Sumako ITO ; Yumiko KATO ; Atsuko MATSUMOTO ; Hisami MARUYAMA ; Yoshimitsu FUKUSHIMA ; Tsuyoshi TADA ; Toru AIZAWA
Medical Education 2009;40(2):141-145
		                        		
		                        			
		                        			1) In 2004, Shinshu University School of Medicine started a program for third-year medical students to experience nursing services during both the day and night shifts. The program included lectures on nursing sciences before practice and debriefing sessions after practice.2) Most students viewed this program favorably and felt that the night-shift training was particular meaningful. They also had favorable opinions about the nurses who taught them.3) Some practical issues remain to be solved, such as security during the night shift and the possible excessive burden upon nurses.
		                        		
		                        		
		                        		
		                        	
            

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