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Unsedated transnasal small-caliber esophagogastroduoden oscopy in elderly and bedridden patients

World Journal of Gastroenterology 2009年第44期15卷 5586-5591页

作者： Mika yuki Yuji Amano Yoshinori Komazawa Hiroyuki Fukuhara Toshihiro Shizuku Shun Yamamoto Yoshikazu Kinoshita Division of Internal Medicine Izumo-City General Medical Center613 Nadabunn-choIzumo-shi Shimane 693-0003Japan Division of Endoscopy Shimane University Hospital89-1 Enya-choIzumo-shiShimane 693-8501Japan Division of Internal Medicine Unnan Municipal General Hospital96-1 Iida-choUnnan-shiShimane 699-1221Japan Second Department of Internal Medicine Shimane UniversitySchool of Medicine89-1 Enya-choIzumo-shiShimane 693-8501Japan

AIM： To evaluate the safety of unsedated transnasal small-caliber esophagogastroduodenoscopy （EGD） for elderly and critically ill bedridden patients. METHODS： One prospective randomized comparative study and one crossover comparative study between transnasal small-caliber EGD and transoral conventional EGD was done （Study 1）. For the comparative study, we enrolled 240 elderly patients aged 〉 65 years old. For the crossover analysis, we enrolled 30 bedridden patients with percutaneous endoscopic gastrostomy （PEG）（Study 2）, We evaluated cardiopulmonary effects by measuring arterial oxygen saturation （SpO2） and calculating the rate-pressure product （RPP）（pulse rate x systolic blood pressure/100） at baseline, 2 and 5 min after endoscopic intubation in Study 1. To assess the risk for endoscopy-related aspiration pneumonia during EGD, we also measured blood leukocyte counts and serum C-reactive protein （CRP） levels before and 3 d after EGD in Study 2. RESULTS： In Study 1, we observed significant decreases in SpO2 during conventional transoral EGD, but not during transnasal small-caliber EGD （0.24% vs -0.24% after 2 min, and 0.18% vs -0.29% after 5 min, P = 0.034, P = 0.044）. Significant differences of the RPP were not found between conventional transoral and transnasal small-caliber EGD. In Study 2, crossover analysis showed statistically significant increases of the RPP at 2 min after intubation and the end of endoscopy （26.8 and 34.6 vs 3.1 and 15.2, P = 0.044, P = 0.046）, and decreases of SpO2 （-0.8% vs -0.1%, P = 0.042） during EGD with transoral conventional in comparison with transnasal small-caliber endoscopy. Thus, for bedridden patients with PEG feeding, who were examined in the supine position, transoral conventional EGD more severely suppressed cardiopulmonary function than transnasal small-caliber EGD. There were also significant increases in the markers of inflammation, blood leukocyte counts and serum CRP values, in bedridden patients after transoral co

关键词： Aged Aspiration pneumonia Gastrointestina endoscopy Critical illness

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Genome-wide Association Study Reveals that the Aquaporin NIP1;1 Contributes to Variation in Hydrogen Peroxide Sensitivity in Arabidopsis thaiiana

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Molecular Plant 2017年第8期10卷 1082-1094页

作者： Ayan Sadhukhan Yuriko Kobayashi yuki Nakano Satoshi luchi Masatomo Kobayashi Lingaraj Sahoo Hiroyuki Koyama Faculty of Applied Biological Sciences Gifu University Gifu 501-1193 Japan Experimental Plant Division RIKEN BioResource Center Tsukuba Ibaraki 305-0074 Japan Department of Biosciences and Bioengineering Indian Institute of Technology Guwahati Guwahati India

Hydrogen peroxide （H202） is a reactive oxygen species that affects cell signaling in various plant defense responses and induces programmed cell death. To identify the new components associated with H202 signaling and tolerance, we conducted a genome-wide association study （GWAS） on the root growth of 133 Arabidopsis thaliana accessions grown in the presence of toxic H2O2 levels. The most significant SNPs were associated with a cluster of chromosome 4 genes encoding an aquaporin NODULIN 26-LIKE INTRINSIC PROTEIN 1; 1 （NIP1;1）, an NB-ARC domain-containing disease resistance protein （AT4G19050）, and a putative membrane lipoprotein （AT4G19070）. The expression level of NIP1;1 was relatively high in A. thaliana accessions sensitive to H2O2. Additionally, overexpression of NIP1;1 in a tolerant accession （e.g., Col-0） increased the sensitivity of transgenic plants to H2O2. An in planta β-glucuronidase reporter assay revealed that variations in the NIP1;1 promoter were responsible for the differences of its expression level in H2O2-tolerant and -sensitive accessions. Cell death was extensive and H2O2 levels were high in the roots of H2O2-sensitive and NIP1;1-overexpressing accessions. Together, our results indicate that the aquaporin NIP1;1 is a key determinant of the sensitivity ofA. thaliana to H2O2, and contributes to the phenotypic variations detected by our GWAS.

关键词： aquaporin GWAS hydrogen peroxide programmed cell death root length signaling

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Plasma brain natriuretic peptide level in older outpatients with heart failure is associated with physical frailty, especially with the slowness domain

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Journal of Geriatric Cardiology 2016年第7期13卷 608-614页

作者： Shu Nishiguchi Yuma Nozaki Masayuki Yamaji Kanako Oya yuki Hikita Tomoki Aoyama Hiroshi Mabuchi Department of Physical Therapy School of Health Sciences Tokyo University of Technology Tokyo Japan Department of Physical Therapy Human Health Sciences Graduate School of Medicine Kyoto University Kyoto Japan Department of Cardiovascular Medicine Koto Memorial Hospital Shiga Japan Department of Rehabilitation Unit Koto Memorial Hospital Shiga Japan

Objective To determine the association between plasma brain natriuretic peptide （BNP） level in patients with heart failure （HF） and physical frailty as well as with each domain of physical frailty. Methods Two hundred and six outpatients of cardiovascular medicine aged 60 years and older who had been hospitalized for HF or had been given a prescription medication for HF were included. Physical frailty was assessed using the following five domains： slowness, weakness, exhaustion, low activity, and shrinking, according to the Cardiovascular Health Study. Patients were divided into nonfi-ailty and frailty groups according to frailty scores. Plasma BNP level was measured. The 6-min walk test was performed to measure endurance. Results Plasma BNP was significantly different between the two groups （frailty group： 158.0 i 214.7 pg/mL, nonfrailty group： 65.2 ~ 88.0 pg/mL, P 〈 0.01）. Multivariate logistic regression analysis revealed log-transformed plasma BNP （Log BNP） was significantly associated with physical frailty （OR： 1.68, 95% CI： 1.11-2.56）, and Log BNP was significantly associated with the slowness domain （walking speed 〈 1.0 m/s） of physical frailty （OR： 1.75, 95% Ch 1.15-2.67）. Additionally, Log BNP was negatively correlated to the 6-minute walk distance （6MWD）（p=0.37, P 〈 0.01）, while 6MWD was positively correlated to walking speed （p = 0.66, P 〈 0.01）. Conclusions Plasma BNP level was related to physical frailty, especially in the slowness domain. Endurance may intervene in the associations between plasma BNP level and walking speed.

关键词： Brain natriuretic peptide Heart failure Physical frailty Walking speed

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Steering performance of an inverted pendulum vehicle with pedals as a personal mobility vehicle

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Theoretical & Applied Mechanics Letters 2013年第1期3卷 71-76页

作者： Chihiro Nakagawa Kimihiko Nakano Yoshihiro Suda yuki Hirayama Mechanical Engineering Osaka Prefecture University Interdisciplinary Information Studies University of Tokyo Institute of Industrial Science University of Tokyo

From the viewpoints of environmental protection, support for the aged and ensuring the right to mobility, there is a need to develop a new type of mobility vehicle that provides more effective transportation. The authors propose an inverted pendulum vehicle with pedals as one of the forms of personal mobility vehicles （PMVs）. In this paper, the steering performance of the inverted pendulum vehicle with pedals is discussed based on experiments on a prototype. From the experimental results, it was confirmed that the errors from the five subjects for the target trajectory and the five-grade evaluation of the maneuverability were similar. Finally, we created an inverted pendulum vehicle with pedals to which was added a reaction actuator for the steering system. From the experimental results, it was found that setting appropriate feedback gains for the handle steering angle and its rate of rotation, which control the right and left wheel driving torques, resulted in greatly improved maneuverability. C 2013 The Chinese Society of Theoretical and Applied Mechanics. [doi：10.1063/2.1301309]

关键词： steering control stability inverted pendulum vehicle

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Endoscopic submucosal dissection for early esophageal neoplasms using the stag beetle knife

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World Journal of Gastroenterology 2018年第15期24卷 1632-1640页

作者： Toshio Kuwai Toshiki Yamaguchi Hiroki Imagawa Ryoichi Miura yuki Sumida Takeshi Takasago yuki Miyasako Tomoyuki Nishimura Sumio Iio Atsushi Yamaguchi Hirotaka Kouno Hiroshi Kohno Sauid Ishaq Department of Gastroenterology National Hospital Organization Kure Medical Center and Chugoku Cancer Center Department of Gastroenterology DGH SGU WI Birmingham City University

AIM To determine short-and long-term outcomes of endoscopic submucosal dissection(ESD) using the stag beetle(SB) knife, a scissor-shaped *** Seventy consecutive patients with 96 early esophageal neoplasms, who underwent ESD using a SB knife at Kure Medical Center and Chugoku Cancer Center, Japan, between April 2010 and August 2016, were retrospectively evaluated. Clinicopathological characteristics of lesions and procedural adverse events were assessed. Therapeutic success was evaluated on the basis of en bloc, histologically complete, and curative or non-curative resection rates. Overall and tumor-specific survival, local or distant recurrence, and 3-and 5-year cumulative overall metachronous cancer rates were also *** Eligible patients had dysplasia/intraepithelial neoplasia(22%) or early cancers(squamous cell carcinoma, 78%). The median procedural time was 60 min and on average, the lesions measured 24 mm in diameter, yielding 33-mm tissue defects. The en bloc resection rate was 100%, with 95% and 81% of dissections deemed histologically complete and curative, respectively. All procedures were completed without accidental incisions/perforations or delayed bleeding. During follow-up(mean, 35 ± 23 mo), no local recurrences or metastases were observed. The 3-and 5-year survival rates were 83% and 70%, respectively, with corresponding rates of 85% and 75% for curative resections and 74% and 49% for noncurative resections. The 3-and 5-year cumulative rates of metachronous cancer in the patients with curative resections were 14% and 26%, *** ESD procedures using the SB knife are feasible, safe, and effective for treating early esophageal neoplasms, yielding favorable short-and long-term outcomes.

关键词： Neoplasms Stag beetle knife Esophageal Endoscopic submucosal dissection Outcome measures

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Particle selectivity of filtering by C. elegans

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Theoretical & Applied Mechanics Letters 2019年第2期9卷 61-65页

作者： yuki Suzuki Kenji Kikuchi Keiko Tsuruta-Numayama Takuji Ishikawa Graduate School of Engineering Tohoku University

A nematode Caenorhabditis elegans(C. elegans) is a filter feeder, which draws a suspension of bacteria and separates bacteria from the solvent by using pharyngeal pumping motions and specific mouth parts. This mechanism has not been fully understood. We investigated the mechanism of filtering of bacteria in the pharynx of C. elegans by visualization by fluorescent particles and dyed E. coli. We succeeded in quantifying the selectivity of bacteria-sized particles by C. elegans. The most accumulated particles were those of 0.5 μm in diameter. The quantity of accumulated particles of 0.2 μm or 1.0 μm in diameter was about one third of that of particles of 0.5μm in diameter. The least accumulated particles were those of 0.05 μm in diameter. These results suggest that the pharyngeal structures of C. elegans would be suitable for eating bacteria because the size of bacteria ingested by C. elegans worms is about 0.5 μm in diameter. We also succeeded in visualizing pharyngeal structures and pumping motions and flow in the pharynx. We found that there were phase differences in the motions among procorpus, metacorpus and isthmus. This result suggests filtering would occur at the two tips of procorpus and isthmus by the phase differences. We found that bacteria-sized particles and bacteria were flowed and trapped in the channels, which existed along the central lumen from tip of procorpus to isthmus. From our results, we proposed the novel mechanism of filtering of bacteria through the channels for flowing and trapping. In future, this selective filtering mechanism of C. elegans would be applied to development of microfluidic filtration devices for medical and biological equipment.

关键词： Nematode C.elegans Pharynx Pumping Filtering Selectivity

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Sphingosine kinase 1 is upregulated with lysophosphatidic acid receptor 2 in human colorectal cancer

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World Journal of Gastroenterology 2016年第8期22卷 2503-2511页

作者： Dai Shida Satoru Inoue yuki Yoshida Atsushi Kodaka Tsutomu Tsuji Makoto Tsuiji Colorectal Surgery Division National Cancer Center Hospital Department of Surgery Tokyo Metropolitan Bokutoh Hospital Department of Microbiology Hoshi University School of Pharmaceutical Sciences

AIM: To examine the expression of SphK1, an oncogenic kinase that produces sphingosine 1-phosphate (S1P), and its correlation with the expression of LPAR2, a major lysophosphatidic acid (LPA) receptor overexpressed in various cancers, in human colorectal ***: Real-time reverse-transcription polymerase chain reaction was used to measure the mRNA expression of SphK1, LPAR2, and the three major S1P receptors in 27 colorectal cancer samples and corresponding normal tissue samples. We also examined the correlation between the expression of SphK1 and ***: Colorectal cancer tissue in 22 of 27 patients had higher levels of SphK1 mRNA than in normal tissue. In two-thirds of the samples, SphK1 mRNA expression was more than two-fold higher than in normal tissue. Consistent with previous reports, LPAR2 mRNA expression in 20 of 27 colorectal cancer tissue samples was higher compared to normal tissue samples. Expression profiles of all three major S1P receptors, S1PR1, S1PR2, and S1PR3, varied without any trend, with no significant difference in expression between cancer and normal tissues. A highly significant positive correlation was found between SphK1 and LPAR2 expression [Pearson’s correlation coefficient (r) = 0.784 and P < 0.01]. The mRNA levels of SphK1 and LPAR2 did not correlate with TNM ***: Our findings suggest that S1P and LPA may play important roles in the development of colorectal cancer via the upregulation of SphK1 and LPAR2, both of which could serve as new therapeutic targets in the treatment of colorectal cancer.

关键词： Sphingosine kinase 1 Lysophosphatidic acid receptor 2 Carcinogenesis Colorectal cancer Sphingosine 1-phosphate

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Leukocyte function-associated antigen-1 deficiency impairs responses to polymicrobial sepsis

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World Journal of Clinical Cases 2015年第9期3卷 793-806页

作者： Jia-Ren Liu Xiaohui Han Sulpicio G Soriano Koichi yuki Department of Anesthesiology Perioperative and Pain MedicineBoston Children’s Hospital Department of Anaesthesia Harvard Medical School

AIM: To determine the role of leukocyte functionassociated antigen-1(LFA-1) in polymicrobial sepsis model in ***: Cecal ligation and puncture model was used to study polymicrobial sepsis in wild type and LFA-1 knockout(KO)(= CD11 a KO) mice. Their survivals were examined. Neutrophil recruitment to the abdominal cavity, bacterial tissue load and bacterial killing by neutrophils, tissue cytokine profiles, and serum cytokines were examined. Apoptosis of tissues was assessed using cleaved-caspase 3 and TUNNEL staining. The recruitment of neutrophils to various tissues was assessed using myeloperoxidase staining or measuring myeloperoxidase activity. RESULTS: LFA-1 deficiency significantly decreased survival(P = 0.0024) with the reduction of neutrophil recruitment to the abdominal cavity and higher bacterial load in blood. It was also associated with increased apoptosis in spleen and more organ injuries probed by interleukin-6 m RNA level. However, the deficiency of LFA-1 did not prevent neutrophil recruitment to lung, liver, spleen or kidney, which suggested the existence of LFA-1 independent recruitment mechanism in these organs. CONCLUSION: LFA-1 deficiency did not attenuate neutrophil recruitment to various organs to adequately mitigate secondary tissue injury in sepsis. It was associated with decreased neutrophil recruitment to the abdominal cavity, higher bacterial load, leading to increased mortality in an abdominal, polymicrobial sepsis.

关键词： Leukocyte function-associated antigen-1 Tissue injury Neutrophil recruitment Polymicrobial sepsis Apoptosis

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Recurrence of unilateral angioedema of the tongue:A case report

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世界临床病例杂志 2023年第27期11卷 6603-6612页

作者： yuki Matsuhisa Tsuneaki Kenzaka Hironori Shimizu Hideo Hirose Tadao Gotoh Department of General Medicine Center for Community Medicine in North-Western Gifu Prefecture National Health Insurance Shirotori HospitalGujo 501-5122Japan Department of Pediatrics Center for Community Medicine in North-Western Gifu Prefecture National Health Insurance Shirotori HospitalGujo 501-5122Japan Department of Internal Medicine Hyogo Prefectural Tamba Medical CenterTamba 669-3495Japan Division of Community Medicine and Career Development Kobe University Graduate School of MedicineKobe 652-0032Japan

BACKGROUND Angioedema is a disorder characterized by edema of the face,lips,tongue,and extremities due to increased vascular *** of the tongue usually occurs bilaterally,and the incidence of unilateral angioedema of the tongue is *** study reports a rare case of unilateral angioedema of the tongue with no identifiable cause and repeated recurrence even after discontinuation of an angiotensin-converting enzyme *** SUMMARY The patient was a 65-year-old woman with pre-existing hypertension and hyperlipidemia and had been receiving 20 mg/d of *** was diagnosed with angioedema due to unilateral swelling of the *** airway obstruction was observed,and the symptoms improved following the administration of 0.3 mg of epinephrine intramuscularly and 125 mg of methylprednisolone *** lisinopril was discontinued,unilateral angioedema of the tongue continued to recur every 2-5 mo,with the symptoms improving following the administration of prednisolone and an *** oral administration of 500 mg of tranexamic acid after dinner prevented the recurrence of *** Careful monitoring and identification of the underlying mechanism play a crucial role in the treatment of angioedema.

关键词： Angioedema Tongue Unilateral Bradykinin Tranexamic acid Case report

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Feasibility study of cyclodextrins as active pharmaceutical ingredients for the treatment of GM1-gangliosidosis

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Asian Journal of Pharmaceutical Sciences 2016年第1期11卷 183-184页

作者： yuki Maeda Keiichi Motoyama Taishi Higashi Yuka Horikoshi Toru Takeo Naomi Nakagata yuki Kurauchi Hiroshi Katsuki yuki Kondo Yoichi Ishitsuka Tetsumi Irie Takumi Erad Hidetoshi Arima Graduate School of Pharmaceutical Sciences Kumamoto University5-1 Oe-honmachiChuo-kuKumamotoJapan Program for Leading Graduate Schools“HIGO(Health life science:Interdisciplinary and Glocal Oriented)Program” Kumamoto University5-1 Oe-honmachiChuo-kuKumamotoJapan Center for Animal Resources and Development Kumamoto University2-2-1 HonjoChou-kuKumamotoJapan Institute of Molecular Embryology and Genetics Kumamoto University2-2-1 HonjoChou-kuKumamotoJapan

GM1-gangliosidosis is a rare lysosomal storage disorder characterized clinically by a wide range of variable neurovisceral,ophthalmological and dysmorphic features. Without enough functionalβ-galactosidase, GM1-gangliosides cannot be degraded in lysosomes, and accumulate to toxic levels in many tissues and organs, particularly in the brain. In spite of several approaches for the treatment of GM1-gangliosidosis.

关键词： Cyclodextrins GM1-gangliosidosis Fibroblasts,Lysosomes

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