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Natural history of asymptomatic gallbladder stones in clinic without beds:A long-term prognosis over 10 years

World Journal of Clinical Cases 2024年第1期12卷 42-50页

作者： Yuji Sakai toshio Tsuyuguchi Hiroshi Ohyama Junichiro Kumagai Takashi Kaiho Masayuki Ohtsuka Naoya Kato Tadao Sakai Department of Gastroenterology Sakai ClinicKimistu 299-1162Japan Department of Gastroenterology Graduate School of MedicineChiba UniversityChiba 260-8677Japan Department of Gastroenterology Chiba Prefectural Sawara HospitalChiba Prefectural Sawara HospitalSawara 287-0003Japan Department of Gastroenterology Kimitsu Central HospitalKisarazu 292-8535Japan Department of Surgery Kimitsu Central HospitalKisarazu 292-8535Japan Department of General Surgery Graduate School of MedicineChiba UniversityChiba 260-8677Japan

BACKGROUND Several studies have explored the long-term prognosis of patients with asymp-tomatic gallbladder *** reports were primarily conducted in facilities equipped with beds for addressing symptomatic *** To report the long-term prognosis of patients with asymptomatic gallbladder stones in clinics without bed *** We investigated the prognoses of 237 patients diagnosed with asymptomatic gallbladder stones in clinics without beds between March 2010 and October *** symptoms developed,patients were transferred to hospitals where appropriate treatment was *** investigated the asymptomatic and survival periods during the *** Among the 237 patients,214(90.3%)remained asymptomatic,with a mean asymptomatic period of 3898.9279±46.871 d(50-4111 d,10.7 years on average).Biliary complications developed in 23 patients(9.7%),with a mean survival period of 4010.0285±31.2788 d(53-4112 d,10.9 years on average).No patient died of biliary *** The long-term prognosis of asymptomatic gallbladder stones in clinics without beds was *** the condition became symptomatic,the patients were transferred to hospitals with beds that could address it;thus,no deaths related to biliary complications were *** finding suggests that follow-up care in clinics without beds is possible.

关键词： Gallbladder stone Acute cholangitis Acute cholecystitis Asymptomatic gallbladder stone Symptomatic gallbladder stone

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Fundamental Study on Response Properties of Structures Constructed on Lunar Regolith

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Open Journal of Earthquake Research 2024年第1期13卷 27-40页

作者： Yuji Miyamoto Takaharu Nakano toshio Kobayashi Department of Architecture and Civil Engineering Fukui University of Technology Fukui Japan Graduate School of Engineering Osaka University Osaka Japan SANSEI Inc. Tokyo Japan

The Artemis Program, for constructing the lunar base, is in progress. How to design and construct architectural and civil engineering structures in the lunar environment has become an important issue. The lunar surface is covered with soft sand, called regolith, and it is required to protect lunar bases and structures, as well as internal precision equipment, against vibrational disturbances such as moonquakes and meteorite collisions. Therefore, in this study, the static and cyclic triaxial compression tests of the regolith simulant were conducted. The reference strain and equivalent damping factor of the regolith simulant were smaller compared to sandy soil on Earth. In addition, a shaking table test using model specimens was conducted on the response properties of regolith ground alone and structures set on regolith ground. The buried foundation and pile foundation notably suppressed the horizontal response attributed to the rocking component compared to a direct foundation.

关键词： Lunar Development Regolith Soil-Structure Interaction Triaxial Compression Test Shaking Table Test

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Evaluation of bacterial contamination and medium-term oncological outcomes of intracorporeal anastomosis for colon cancer:A propensity score matching analysis

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World Journal of Gastrointestinal Surgery 2024年第3期16卷 670-680页

作者： Hajime Kayano Nana Mamuro Yutaro Kamei Takashi Ogimi Hiroshi Miyakita toshio Nakagohri Kazuo Koyanagi Masaki Mori Seiichiro Yamamoto Department of Gastroenterological Surgery Tokai University School of MedicineIsehara 259-1193KanagawaJapan

BACKGROUND Although intracorporeal anastomosis(IA)for colon cancer requires longer operative time than extracorporeal anastomosis(EA),its short-term postoperative results,such as early recovery of bowel movement,have been reported to be equal or *** IA requires opening the intestinal tract in the abdominal cavity under pneumoperitoneum,there are concerns about intraperitoneal bacterial infection and recurrence of peritoneal dissemination due to the spread of bacteria and tumor ***,intraperitoneal bacterial contamination and medium-term oncological outcomes have not been *** cavity in *** Of 127 patients who underwent laparoscopic colon resection for colon cancer from April 2015 to December 2020,75 underwent EA(EA group),and 52 underwent IA(IA group).After propensity score matching,the primary endpoint was 3-year disease-free survival rates,and secondary endpoints were 3-year overall survival rates,type of recurrence,surgical site infection(SSI)incidence,number of days on antibiotics,and postoperative biological *** Three-year disease-free survival rates did not significantly differ between the IA and EA groups(87.2%and 82.7%,respectively,P=0.4473).The 3-year overall survival rates also did not significantly differ between the IA and EA groups(94.7%and 94.7%,respectively;P=0.9891).There was no difference in the type of recurrence between the two *** addition,there were no significant differences in SSI incidence or the number of days on antibiotics;however,postoperative biological responses,such as the white blood cell count(10200 vs 8650/mm^(3),P=0.0068),C-reactive protein(6.8 vs 4.5 mg/dL,P=0.0011),and body temperature(37.7 vs 37.5℃,P=0.0079),were significantly higher in the IA *** IA is an anastomotic technique that should be widely performed because its risk of intraperitoneal bacterial contamination and medium-term oncological outcomes are comparable to those of EA.

关键词： Colon cancer Intracorporeal anastomosis 3-year disease-free survival Recurrence Surgical site infection Postoperative biological response

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Goblet cell carcinoid of the appendix:Six case reports

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World Journal of Clinical Cases 2024年第22期12卷 5217-5224页

作者： Toshiaki Toshima Ryo Inada Shinya Sakamoto Eri Takeda Takahiro Yoshioka Kento Kumon Naoki Mimura Nobuo Takata Motoyasu Tabuchi Kazuyuki Oishi Takuji sato Kenta Sui Takehiro Okabayashi Kazuhide Ozaki toshio Nakamura Yuichi Shibuya Manabu Matsumoto Jun Iwata Department of Gastroenterological Surgery Kochi Health Sciences CenterKochi 781-8555Japan Department of Diagnostic Pathology Kochi Health Sciences CenterKochi 781-8555Japan

BACKGROUND Goblet cell carcinoid(GCC)of the appendix is a rare tumor characterized by neuroendocrine and adenocarcinoma *** preoperative diagnosis is very difficult,with most patients complaining mainly of abdominal *** tomography shows swelling of the appendix,so diagnosis is usually made incidentally after appendectomy based on a preoperative diagnosis of *** if a patient undergoes preoperative colonoscopy,accurate endoscopic diagnosis is very difficult because GCC shows a submucosal growth pattern with invasion of the appendiceal *** SUMMARY Between 2017 and 2022,6 patients with GCC were treated in our *** presenting complaint for 5 of these 6 patients was abdominal *** 5 patients underwent appendectomy,including 4 for a preoperative diagnosis of appendicitis and the other for diagnosis and treatment of an appendiceal *** sixth patient presented with vomiting and underwent ileocecal resection for GCC diagnosed from preoperative *** 2 patients with GCC underwent colonoscopy,no neoplastic changes were *** of the six patients showed lymph node metastasis on pathological *** of the last followup(median:15 mo),all cases remained alive without *** As preoperative diagnosis of GCC is difficult,this possibility must be considered during surgical treatments for presumptive appendicitis.

关键词： Goblet cell carcinoid Appendix Preoperative diagnosis Endoscopic diagnosis Surgical treatment Case report

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High-grade pancreatic intraepithelial neoplasia diagnosed based on changes in magnetic resonance cholangiopancreatography findings:A case report

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World Journal of Clinical Cases 2024年第8期12卷 1487-1496页

作者： Nao Furuya Atsushi Yamaguchi Naohiro Kato Syuhei Sugata Takuro Hamada Takeshi Mizumoto Yuzuru Tamaru Ryusaku Kusunoki toshio Kuwai Hirotaka Kouno Kazuya Kuraoka Yoshiyuki Shibata Sho Tazuma Takeshi Sudo Hiroshi Kohno Shiro Oka Department of Gastroenterology National Hospital Organization Kure Medical Center and Chugoku Cancer CenterKure 737-0023HiroshimaJapan Department of Gastroenterology Hiroshima University HospitalHiroshima 734-8551HiroshimaJapan Department of Pathology National Hospital Organization Kure Medical Center and Chugoku Cancer CenterKure 737-0023HiroshimaJapan Department of Surgery National Hospital Organization Kure Medical Center and Chugoku Cancer CenterKure 737-0023HiroshimaJapan

BACKGROUND High-grade pancreatic intraepithelial neoplasia(PanIN)exhibits no mass and is not detected by any examination ***,it can be diagnosed by pancreatic juice cytology from indirect *** previous cases were diagnosed based on findings of a focal stricture of the main pancreatic duct(MPD)and caudal MPD dilatation and subsequent pancreatic juice cytology using endoscopic retrograde cholangiopancreatography(ERCP).We experienced a case of high-grade PanIN with an unclear MPD over a 20-mm range,but without caudal MPD dilatation on magnetic resonance cholangiopancreatography(MRCP).CASE SUMMARY A 60-year-old female patient underwent computed tomography for a follow-up of uterine cancer post-excision,which revealed pancreatic *** revealed an unclear MPD of the pancreatic body at a 20-mm length without caudal MPD ***,course observation was *** 24 mo,MRCP revealed an increased caudal MPD caliber and a larger pancreatic *** performed ERCP and detected atypical cells suspected of adenocarcinoma by serial pancreatic juice aspiration cytology *** performed a distal pancreatectomy and obtained a histopathological diagnosis of high-grade *** parenchyma invasion was not observed,and curative resection was *** High-grade Pan-IN may cause MPD narrowing in a long range without caudal MPD dilatation.

关键词： Pancreatic cancer Pancreatic intraepithelial neoplasm High-grade pancreatic intraepithelial neoplasm Magnetic resonance cholangiopancreatography Carcinoma in situ Case report

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Challenge to overcome: Nonstructural protein 5A-P32 deletion in direct-acting antiviral-based therapy for hepatitis C virus

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World Journal of Gastroenterology 2018年第38期24卷 4304-4310页

作者： Ken sato toshio Uraoka Department of Gastroenterology and Hepatology Gunma University Graduate School of Medicine

Interferon(IFN)-based therapy for hepatitis C virus(HCV) infection has recently been replaced by IFNfree direct-acting antiviral(DAA)-based therapy, which has been established as a 1^(st) line therapy with high efficacy and tolerability due to its reasonable safety profile. Resistance-associated substitutions(RASs) have been a weakness of DAA-based therapy. For example, combination therapy with daclatasvir and asunaprevir(DCV/ASV) is less effective for HCV genotype 1-infected patients with Y93H as a nonstructural protein 5A RAS. However, the problem regarding RASs has been gradually overcome with the advent of recently developed DAAs, such as sofosbuvir-based regimens or combination therapy with glecaprevir and pibrentasvir. Despite the high efficiency of DAA-based therapy, some cases fail to achieve viral eradication. P32 deletion, an NS5A RAS, has been gradually noticed in patients with DCV/ASV failure. P32 deletion has been sporadically reported and the prevalence of this RAS has been considered to be low in patients with DCV/ASV failure. Thus, the picture of P32 deletion has not been fully evaluated. Importantly, currently-commercialized DAA-based combination therapy was not likely to be effective for patients with P32 deletion. Exploring and overcoming this RAS is essential for antiviral therapy for chronic hepatitis C.

关键词： Chronic hepatitis C Direct-acting antivirals Resistant-associated substitution P32 deletion Nonstructural protein 5A

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Strategy for the control of drug-induced liver injury due to investigational treatments/drugs for COVID-19

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World Journal of Gastroenterology 2021年第48期27卷 8370-8373页

作者： Ken sato Yuichi Yamazaki toshio Uraoka Department of Gastroenterology and Hepatology Gunma University Graduate School of MedicineMaebashi 371-8511GunmaJapan

Investigational treatments/drugs for coronavirus disease 2019(COVID-19)have been applied,with repurposed or newly developed drugs,and their effectiveness has been *** of these drugs may be hepatotoxic,and each monotherapy or combination therapy may increase the risk of drug-induced liver injury(DILI).We should aim to control dysregulation of liver function,as well as the progression of COVID-19,as much as *** discussed the potential risks of investigational treatments/drugs and promising drugs for both COVID-19 and DILI due to investigational treatments/drugs.

关键词： Coronavirus disease 2019 Drug-induced liver injury Cytochrome P450 Drug-drug interaction Drug-disease interaction Cytokine

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Sensorineural hearing dysfunction after discharge from critical care in adults:A retrospective observational study

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Journal of Otology 2021年第3期16卷 144-149页

作者： Takashi Fujiwara Mizuki sato Shin-ichi sato toshio fukuoka Department of Public Health Research Kurashiki Clinical Research InstituteMiwa 1-1-1Kurashiki CityOkayama Prefecture710-8602Japan Department of Otolaryngology Head and Neck Surgery Kurashiki Central HospitalMiwa 1-1-1Kurashiki CityOkayama Prefecture710-8602Japan Department of Critical Care and Emergency Medicine Kurashiki Central HospitalMiwa 1-1-1Kurashiki CityOkayama Prefecture710-8602Japan Emergency and Critical Care Center Kurashiki Central HospitalMiwa 1-1-1Kurashiki CityOkayama Prefecture710-8602Japan

Background Patients undergoing intensive care are exposed to risk factors for hearing *** study assessed the worse changes in pure tone average(PTA)thresholds after intensive care and identified the factors associated with worse hearing *** We conducted a single-centre retrospective study,and included adult patients admitted to the intensive care unit(ICU)of Kurashiki Central Hospital between January 2014 and September 2019,who had regular pure tone audiometry performed before and after ICU *** between changes in PTA threshold and patient characteristics,were *** included ears were classified as those with worse hearing(>10 dB increase in the PTA threshold)and those without worse hearing,and the baseline characteristics were *** During the study period,125 ears of 71 patients(male:female ratio,35:36;mean age,72.5±12.3 years)met the eligibility ***,sex,and the use of furosemide were not correlated with changes in PTA *** analysis showed that ears with worse hearing were associated with a lower serum platelet count than ears without worse hearing(153±85×10^(9)/L vs.206±85×10^(9)/L,respectively;P=0.010),and the rate of planned ICU admission(elective surgery)was higher in the worse hearing group(57.1% vs.28.8%,respectively;p=0.011).Conclusions Age,sex,and the use of furosemide did not have adversely affect hearing *** serum platelet count and planned admission appear to be risk factors for worse hearing.

关键词： Hearing loss Critical care Intensive care Adverse effects Observational study

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Expression of mutant type-p53 products in H pylori-associated chronic gastritis

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World Journal of Gastroenterology 2007年第10期13卷 1541-1546页

作者： Masaaki Kodama Kazunari Murakami Tadayoshi Okimoto Ryugo sato Koichiro Watanabe toshio Fujioka Department of Gastroenterology Faculty of MedicineOita UniversityHasama-machiOita879-5593Japan

AIM:To investigate the mutation of p 53 immuno-histochemically in non-tumorous gastric mucosa with H pylori infection before and after H pylori eradication ***:53 subjects(36 male,17 female,mean age ± SEM,57.1 ± 12.1)undergoing endoscopic examination were included in this study.42 of 53 patients were H pylori-positive,and 11 were H *** H pylori-positive patients had successful eradication *** specimens were taken from five points of the stomach,as recommended by the updated Sydney *** studies were performed by using primary antibodies against p53(DO-7 and PAb240).RESULTS:p53(DO-7 and PAb240)immunoreactivity was shown in the neck region of the gastric pits,however,quite a few cells were found to be immunopositive for p 53(PAb240)in the H pylori-infected gastric *** proportion of patients immunopositive for p 53(PAb240)was significantly reduced 6 mo after eradication [28/42(66.7%)to 6/42(14.3%)](P < 0.05),while the biopsies taken from H pylori-negative patients showed no immunoreactivity for p53(PAb240).p53(PAb240)-positive patients were divided into two groups by the number of positive cells detected:one with more than six positive cells per 10 gastric pits(group A,n = 12),and the other with less than five positive cells per 10 gastric pits(group B,n = 30).Atrophy scores in group A were significant higher than those in group B at the greater curvature of the antrum(group A:2.00 ± 0.14 vs group B:1.40 ± 0.15,P = 0.012),the lesser curvature of the corpus(group A:2.00 ± 0.21 vs group B:1.07 ± 0.23,P = 0.017),and the greater curvature of the corpus(group A:1.20 ± 0.30vs group B:0.47 ± 0.21,P = 0.031).Group A showed significant higher intestinal metaplasia scores than group B only at the lesser curvature of the antrum(group A:2.10 ± 0.41 vs group B:1.12 ± 0.29,P = 0.035).CONCLUSION:H pylori-associated chronic gastritis expressed the mutant-type p53,which was significantly associated with more severe atro

关键词：幽门螺杆菌相关性慢性胃炎突变型p53产物基因表达

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Editorial for the Special Issue on Unmanned Intelligent Cluster

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Engineering 2022年第5期8卷 1-2页

作者： Jun Zhang toshio fukuda Defu Lin Florian Holzapfel School of Information and Electronics Beijing Institute of TechnologyBeijing 100081China School of Mechatronical Engineering Beijing Institute of TechnologyBeijing 100081China School of Aerospace Engineering Beijing Institute of TechnologyBeijing 100081China Institute of Flight System Dynamics Technical University of MunichGarching 85748Germany

Recent advances in networked cooperative autonomous sys-tems offer the potential to significantly improve system quality for a wide range of *** in embedded processor,sensor,communication,and networking technology in the last few decades has accelerated interest in networked cooperative autonomous systems,multirobot systems,and distributed sensor networks for applications such as manufacturing,logistics,pro-cess monitoring,enhanced situational awareness,plant safety,inspection,security,and rescue operations.

关键词： robot networks autonomous

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