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Journal of Environmental Sciences 2014年第6期26卷 1301-1306页

作者： Huy Thanh Vo Tsuyoshi Imai Truc Thanh Ho Masahiko Sekine Ariyo Kanno Takaya Higuchi Koichi Yamamoto hidenori Yamamoto Faculty of Engineering Yamaguchi University 2-16-1 TokiwadaiYamaguchi 755-8611 Japan Faculty of Urban Engineering Central University of ConstructionTuy Hoa Phu Yen 56000 Vietnam

The inactivation effects of pressurized CO2 against bacteriophage Qβ and ФX 174 were investigated under the pressure of 0.3-0.9 MPa, initial concentration of 107-109 PFU/mL, and temperature of 17.8℃-27.2℃. The optimum conditions were found to be 0.7 MPa and an exposure time of 25 min. Under identical treatment conditions, a greater than 3.3-log reduction in bacteriophage Qβ was achieved by CO2, while a nearly 3.0 log reduction was observed for phage ФX174. The viricidal effects of N2O （an inactivation gas with similar characteristics to CO2）, normal acid （HC1）, and CO2 treatment with phosphate buffered saline affirmed the chemical nature of CO2 treatment. The pumping cycle, depressurization rate, and release of intracellular substances caused by CO2 were its viricidal mechanisms. The results indicate that CO2 has the potential for use as a disinfectant without forming disinfection by-products.

关键词： bacteriophage Qβ bacteriophage ФX174 pressurized CO2 viricidal effect microbubbles water disinfection

Evaluation Method of the Gait Motion Based on Self-organizing Map Using the Gravity Center Fluctuation on the Sole

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International Journal of Automation and computing 2017年第5期14卷 603-614页

作者： Koji Makino Masahiro Nakamura hidenori Omori Yoshinobu Hanagata Shohei Ueda Kyosuke Nakagawa Kazuyoshi Ishida Hidetsugu Terada Graduate School of Engineering University of YamanashiKofuYamanashi 400-8511Japan Kofu Municipal Hospital KofuYamanashi 400-0832Japan

This paper describes the evaluation method of the gait motion in walk rehabilitation. We assume that the evaluation consists of the classification of the measured data and the prediction of the feature of the gait motion. The method may enable a doctor and a physical therapist to recognize the condition of the patients more easily, and increase the motivation of patient further for rehabilitation. However, it is difficult to divide the gait motion into discrete categories, since the gait motion continuously changes and does not have the clear boundaries. Therefore, the self-organizing map （SOM） that is able to arrange the continuous data on the almost continuous map is employed in order to classify them. And, the feature of the gait motion is predicted by the classification. In this study, we adopt the gravity-center fluctuation （GCF） on the sole as the measured data. First, it is shown that the pattern of the CCF that is obtained by our developed measurement system includes the feature of the gait motion. Secondly, the relation between the pattern of the GCF and the feature of the gait motion that the doctor and the physical therapist evaluate by visual inspection is considered using the SOM. Next, we describe the prediction of following features measured by numerical values： the length of stride, the velocity of walk and the difference of steps that are important for the doctor and the physical therapist to make a diagnosis of the condition of the gait motion in walk rehabilitation. Finally, it is investigated that the position of a new test data that is arranged on the map accords with the prediction. As a consequence, we confirm that the method using the SOM is often useful to classify and predict the condition of the patient.

关键词： Gait motion self-organizing map (SOM) rehabilitation evaluation method gravity center fluctuation (GCF).

Aluminum potassium sulfate and tannic acid sclerotherapy for Goligher Grades Ⅱ and Ⅲ hemorrhoids: Results from a multicenter study

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World Journal of Hepatology 2016年第20期8卷 844-849页

作者： hidenori Miyamoto Takenori Hada Gentaro Ishiyama Yoshito Ono Hideo Watanabe Department of Digestive and Pediatric Surgery Institute of Health Bioscience University of Tokushima Graduate School Department of Proctologic Surgery Shiseikai Miyamoto Hospital Division of Proctologic Surgery Onaka Clinic Oshiri Center Department of Anorectal Surgery Sapporo Ishiyama Hospital Department of Surgery Watanabe Hospital

AIM: To show that aluminum potassium sulfate and tannic acid(ALTA) sclerotherapy has a high success rate for Grade Ⅱ and Ⅲ ***: This study was based on the clinical data of 604 patients with hemorrhoids who underwent ALTA sclerotherapy between January 2009 and February 2015. The objective of this study was to assess the efficacy of this treatment for Grades Ⅱ and Ⅲ hemorrhoids. Preoperative and postoperative symptoms, complications and success rate were all assessed retrospectively. Follow-up consisted of a simple questionnaire, physical examination and an anoscopy. Patients were followed-up at one day, one week, two weeks, one month, one year, two years, three years, four years and five years after the ALTA ***: One hundred and sixty-nine patients were diagnosed with Grade Ⅱ hemorrhoids and 435 patients were diagnosed with Grade Ⅲ hemorrhoids. The one year, three year and five year cumulative success rates of ALTA sclerotherapy for Grades Ⅱ and Ⅲ hemo-rrhoids were 95.9% and 93.1%; 89.3% and 83.7%; and 89.3% and 78.2%, respectively. No significant differences were observed in the cumulative success rates after ALTA sclerotherapy between Grades Ⅱ and Ⅲ hemorrhoids(P = 0.09). There were forty-seven post-operative complications(low grade fever; anal pain; urinary retention; rectal ulcer; and others). No serious or life-threatening complications occurred and all cases improved through conservative treatment. At univariate analysis there were no predictive factors of ***: ALTA sclerotherapy has had a high success rate for Grade Ⅱ and Ⅲ hemorrhoids during five years of post-operative treatment. However, additional studies are needed to evaluate the efficacy of this ALTA sclerotherapy in the management of hemorrhoidal disease.

关键词： sclerotherapy Aluminum potassium sulfate and tannic acid Goligher grade Ⅲ Minimally invasive treatment Hemorrhoid

Persistent CXCR4 expression after preoperative chemoradiotherapy predicts early recurrence and poor prognosis in esophageal cancer

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World Journal of Gastroenterology 2006年第47期12卷 7585-7590页

作者： Kenji Koishi Reigetsu Yoshikawa Tohru Tsujimura Tomoko Hashimoto-Tamaoki Syoudou Kojima hidenori Yanagi Takehira Yamamura Yoshinori Fujiwara Second Department of Surgery Hyogo College of Medicine Nishinomiya Hyogo 663-8501 Japan Second Department of Surgery Hyogo College of Medicine Nishinomiya Hyogo 663-8501 Japan Institute for Advanced Medical Sciences Hyogo College of Medicine Nishinomiya Hyogo 663-8501 Japan Second Department of Pathology Hyogo College of Medicine Nishinomiya Hyogo 663-8501 Japan Institute for Advanced Medical Sciences Hyogo College of Medicine Nishinomiya Hyogo 663-8501 Japan Department of Genetics Hyogo College of Medicine Nishinomiya Hyogo 663-8501 Japan

AIM: To study the effect of CXC chemokine receptor-4 (CXCR4) expression on disease progression and prognosis in esophageal cancer. METHODS: CXCR4 expression was evaluated in 37 patients with histologically confirmed esophageal squamous carcinomas (ESCC) undergoing preoperative chemoradiotherapy (CRT) by immunohistochemical staining. RESULTS: Eleven out of 37 ESCC patients showed a pathological complete response (CR) after CRT. CXCR4 protein expression was observed in cell cytoplasms of 13 tumors, and null expression was seen in 13 tumors. Distant recurrence was significantly more common in patients with positive CXCR4 expression (P = 0.0318). After a median follow-up time of 31.6 mo, 19 patients progressed (12 of 19 expressed positive CXCR4) and 11 died (10 of 11 expressed positive CXCR4). Overall survival was significantly correlated with lymph node metastasis (952.1 ± 53.8 d in negative group vs 475.1 ± 56.2 d in positive group, P = 0.023), distant metastasis (874.0 ± 60.4 d in negative group vs 434.9 ± 75.2 d in positive group, P = 0.014) and CRT (811.5 ± 51.2 d in responder group vs 459.6 ± 94.0 d in non-responder group, P = 0.00038) and further with an absence ofCXCR4 expression or no residual tumor (959.8 ± 51.0 d in null expression or no tumor group vs 412.0 ± 57.1 d in positive expression group, P = 0.0001). CONCLUSION: Persistent positive CXCR4 expression is implicated in tumor aggressiveness and poor prognosis in ESCC after CRT, and preoperative CRT may improve the prognosis of ESCC via CXCL12-CXCR4 signaling pathway.

关键词： CXC chemokine receptor-4 Metastasis Chemoradiotherapy Esophageal cancer

Clinicopathological features of small nonfunctioning pancreatic neuroendocrine tumors

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World Journal of Gastroenterology 2014年第47期20卷 17949-17954页

作者： Mariko Furukori Koji Imai hidenori Karasaki Kenji Watanabe Kensuke Oikawa Naoyuki Miyokawa Masahiko Taniguchi Hiroyuki Furukawa Division of Gastroenterological and General Surgery Department of SurgeryAsahikawa Medical UniversityHokkaido 078-8510Japan Department of Surgery Sapporo Higashi Tokushukai HospitalSapporo cityHokkaido 065-0033Japan Department of Surgical Pathology Asahikawa Medical College HospitalHokkaido 078-8510Japan

AIM: To present our experiences in studying the clinicopathological features of small nonfunctioning pancreatic neuroendocrine tumors (NF-pNETs).

关键词： Pancreatic neuroendocrine tumor Pancreatic neuroendocrine carcinoma Nonfunctioning Lymphadenectomy Treatment

Large mucinous cystic neoplasm of the pancreas associated with pregnancy

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World Journal of Gastroenterology 2008年第47期14卷 7252-7255页

作者： Shin-ichi Ikuta Tsukasa Aihara Chiaki Yasui Hiroya Iida hidenori Yanagi Masao Mitsunobu Ayako Kakuno Naoki Yamanaka Department of Surgery Meiwa General HospitalHyogo 663-8186Japan Department of Pathology Meiwa General HospitalHyogo 663-8186Japan

Mucinous cystic neoplasms (MCNs) of the pancreas occur mostly in females and are potentially sex hormone-sensitive. However, a MCN occurring during pregnancy is quite rare. A 30-year-old woman in the tenth week of pregnancy was referred to us because of a rapid increase in left hypochondrial distending pain. On ultrasound, the patient had a large intra-abdominal cystic lesion. She was thereafter diagnosed with missed abortion and a computed tomography scan showed that the lesion was a cystic tumor 18 cm in diameter originating from the pancreatic tail. The patient subsequently underwent tumor resection with distal pancreatectomy, sparing the spleen. Histopathological analysis of the specimen revealed a pancreatic MCN with moderate dysplasia. Immunohistochemically, the tumor was positive for both estrogen and progesterone receptors. To our knowledge, this is the first reported case of pancreatic MCN with moderate dysplasia in association with pregnancy. Our case strongly indicates that pancreatic MCN is female-hormone dependent.

关键词： Mucinous cystic neoplasm Pancreatic tumor Pregnancy

Effects of General Anesthesia on the Results of Cardiac Catheterization in Pediatric Patients with Ventricular Septal Defect

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Congenital Heart Disease 2023年第2期18卷 235-243页

作者： Kiyotaka Go Taichi Kato Machiko Kito Yoshihito Morimoto Satoru Kawai hidenori Yamamoto Yoshie Fukasawa Kazushi Yasuda Department of Pediatric Cardiology Aichi Children’s Health and Medical CenterObu474-8710Japan Department of Pediatrics Nagoya University Graduate School of MedicineNagoya466-8560Japan

Background:There is no gold standard sedation method for pediatric cardiac *** congenital heart diseases with intracardiac shunts,hemodynamic parameters are prone to change depending on the ventilation conditions and anesthetics,although few studies have examined these *** purpose of this study was to investigate the effects of two different sedation methods on the hemodynamic ***:This study retrospectively evaluated consecutive patients with ventricular septal defect(VSD)below 1 year of age who underwent cardiac catheterization at Aichi Children’s Health and Medical Center,who were divided into age-and VSD diameter-matched general anesthesia(GA)and monitored anesthesia care(MAC)under the natural airway groups(n=40 each),for comparison of hemodynamic ***:In the GA group,arterial blood pH and arterial partial pressure of oxygen were significantly higher(p<0.01),whereas arterial partial pressure of carbon dioxide was significantly lower than in the MAC group(p<0.01).Mean pulmonary artery pressure(p<0.05)and systemic blood pressure(p<0.01)were lower in the GA *** vascular resistance index(p<0.01)and systemic vascular resistance index(p<0.01)were also significantly lower in the GA group than the MAC *** were no significant differences in pulmonary blood flow index,systemic blood flow index,and pulmonary/systemic blood flow ratio between the two ***:Cardiac catheterization under GA in VSD patients results in different hemodynamic parameters compared to that under *** particular,when using pulmonary artery pressure and pulmonary vascular resistance measured under GA for judgment regarding the surgical indications or perioperative management,consideration should be given to the fact that these parameters might be lower compared to those measured under MAC.

关键词： Ventricular septal defect cardiac catheterization general anesthesia monitored anesthesia care

Colon cancer arising from colonic diverticulum:A case report

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World Journal of Clinical Cases 2019年第13期7卷 1643-1651页

作者： Hajime Kayano Yusuhiko Ueda Takashi Machida Shinichiro Hiraiwa hidenori Zakoji Takuma Tajiri Masaya Mukai Eiji Nomura Department of Gastroenterological and General Surgery Tokai University Hachioji Hospital Tokyo Hachioji 192-0032 Japan Departments of Pathology Tokai University Hachioji Hospital Tokyo Hachioji 192-0032 Japan Departments of Urology Tokai University Hachioji Hospital Tokyo Hachioji 192-0032 Japan

BACKGROUND Colonic diverticulosis is a common disease, and the coexistence of colonic diverticulosis and colorectal cancer is often seen clinically. It is very rare that colon cancer arises from the mucosa of a colonic diverticulum. When colon cancer arises in a diverticulum and then tends to develop outside the wall, without developing within the lumen, the differential diagnosis from complicating lesions due to colonic diverticulitis is difficult. CASE SUMMARY A 76-year-old man was admitted to a nearby clinic with a chief complaint of discomfort and urinary frequency. Since a vesicosigmoidal fistula was seen on abdominal computed tomography, he was referred to our hospital. Laparoscopic sigmoidectomy was performed because the various diagnostic findings were diagnosed as a vesicosigmoidal fistula with diverticulitis of the sigmoid colon. However, on histopathological examination, it was diagnosed as a vesicosigmoidal fistula due to colon cancer arising in the diverticulum. Laparoscopic partial resection of the bladder was performed because local recurrence was observed in the bladder wall one and a half years after surgery. It is currently one year after reoperation, but there has been no recurrence or metastasis. CONCLUSION Colon cancer arising in a diverticulum of the colon should be considered when diverticulitis with complications is observed.

关键词： Colon cancer Diverticulum Colovesical fistula Laparoscopic surgery Diverticulitis Case report

Role Expectation of Nurse Managers in Geriatric Health Services Facilities

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Advances in Aging Research 2016年第5期5卷 122-130页

作者： Chiharu Miyata hidenori Arai Department of Health Sciences Graduate School of Medicine Kyushu University Fukuoka Japan Deputy Director National Center for Geriatrics and Gerontology Aichi Japan

Back ground: The characteristics of geriatric health services facilities (GHSF) in Japan include provision of care focused on the life of the residents, and there is a need for cooperation between care workers and physical therapists responsible for the care. Thus, it is expected that a nurse manager occupies specific roles suited for the above characteristics that are different from those of medical facilities. Thus, we aimed to clarify the role expected of nurse managers via a questionnaire survey administered to nurses and care workers in GHSF. Methods: We used a descriptive, cross-sectional design. The study was conducted in 56 GHSF all over Japan. The instrument used for data collection was a questionnaire. The questionnaires consisted of 35 items for determining role expectation of nurse managers, the background information of respondents. The role of nurse managers was analyzed using principal factor analysis (promax rotation). Findings: A total of 259 nurses and care workers participated in this study. We extracted 34 items by factor analysis, which were classified into three factors (promotion of home nursing, management of medical care, and environment creation for collaboration and education). Among care workers, four factors consisting of 33 items were extracted. Factors one, two, and three were similar to those of nurses;“intervention to ethical problem” was extracted as the additional fourth factor. Conclusion: The roles required for nurse managers in GHSF are the promotion of home nursing, which is the original role of the health services facilities, exhibition of the specialty as a healthcare professional, creation of a work environment that promotes mutual understanding for collaboration with other professionals, and enhancement of the education and training system.

关键词： Geriatric Health Services Facilities Nurses Nurse Manager Role Expectation Care Workers

Compression analysis of the gray and white matter of the spinal cord

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Neural Regeneration Research 2020年第7期15卷 1344-1349页

作者： Norihiro Nishida Fei Jiang Junji Ohgi Akihiro Tanaka Yasuaki Imajo hidenori Suzuki Masahiro Funaba Takashi Sakai Itsuo Sakuramoto Xian Chen Department of Orthopedic Surgery Yamaguchi University Graduate School of MedicineYamaguchiJapan Faculty of Engineering Yamaguchi UniversityYamaguchiJapan Department of Mechanical and Electrical Engineering National Institute of Technology Tokuyama CollegeYamaguchiJapan

The spinal cord is composed of gray matter and white *** is well known that the properties of these two tissues differ *** diseases often present with symptoms that are caused by spinal cord *** the mechanical properties of gray and white matter would allow us to gain a deep understanding of the injuries caused to the spinal cord and provide information on the pathological changes to these distinct tissues in several *** studies have reported on the physical properties of gray and white matter,however,these were focused on longitudinal tension *** is known about the differences between gray and white matter in terms of their response to *** therefore performed mechanical compression test of the gray and white matter of spinal cords harvested from cows and analyzed the differences between them in response to *** conducted compression testing of gray matter and white matter to detect possible differences in the collapse *** found that increased compression(especially more than 50%compression)resulted in more severe injuries to both the gray and white *** present results on the mechanical differences between gray and white matter in response to compression will be useful when interpreting findings from medical imaging in patients with spinal conditions.

关键词： biomechanical study cervical spondylotic myelopathy collapse rate compression gray matter mechanical properties spinal cord injury white matter