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Peeling a giant ileal lipoma with endoscopic unroofing and submucosal dissection

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World Journal of Gastroenterology 2010年第13期16卷 1676-1679页

作者： Takashi Morimoto Kuang-I Fu Hironori Konuma yuko Izumi Syujirou Matsuyama Kanako Ogura Akihisa Miyazaki Sumio Watanabe Department of Gastroenterology Juntendo University Nerima Hospital Department of Pathology Juntendo University Nerima Hospital Department of Gastroenterology Juntendo University School of Medicine

Lipoma is relatively common in the colon but is less often in the small intestine. Most lipomas are incidentally detected at endoscopy and are usually small and asymptomatic. However, some of them can present with obstruction and/or intussusceptions. Surgical resection is commonly recommended to remove such significant lipomas with a limited pedicle and larger than 2 cm in size, as endoscopic resection may result in unfavorable complications such as intestinal perforations. We report a case of 62-year-old man presenting with hematochezia. Colonoscopy showed a submucosal tumor, about 50 mm in size, in the terminal ileum. A clinical diagnosis of lipoma was established based on the findings of colonoscopy and abdominal computed tomography (CT). As the patient complained of hematochezia and mild iron deficiency anemia associated with repeated tumor prolapse, we decided to remove his lipoma. Consequently, the lesion was completely removed en bloc . Although abdominal CT immediately after removal of the lesion showed a small amount of free air, conservative treatment was successfully carried out for the perforation. Histologically, the removed lesion was a lipoma.

关键词： Lipoma Endoscopic submucosal dissection Endoscopic unroofing Perforation

A comparison of three methods of decellularization of pig corneas to reduce immunogenicity

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International Journal of Ophthalmology(English edition) 2014年第4期7卷 587-593页

作者： Whayoung Lee yuko Miyagawa Cassandra Long David K.C.Cooper Hidetaka Hara Department of Surgery Thomas E. Starzl Transplantation Institute University of Pittsburgh

·AIM: To investigate whether decellularization using different techniques can reduce immunogenicity of the cornea, and to explore the decellularized cornea as a scaffold for cultured corneal endothelial cells(CECs).Transplantation of decellularized porcine corneas increases graft transparency and survival for longer periods compared with fresh grafts.·METHODS: Six-month-old wild-type pig corneas were cut into 100-200 μm thickness, and then decellularized by three different methods: 1) 0.1% sodium dodecyl sulfate(SDS); 2) hypoxic nitrogen(N2); and 3) hypertonic NaCl. Thickness and transparency were assessed visually. Fresh and decellularized corneas were stained with hematoxylin/eosin(H&E), and for the presence of galactose-α1,3-galactose(Gal) and N-glycolylneuraminic acid(NeuGc, a nonGal antigen). Also, a human IgM/IgG binding assay was performed. Cultured porcine CECs were seeded on the surface of the decellularized cornea and examined after H&E staining.· RESULTS: All three methods of decellularization reduced the number of keratocytes in the stromal tissue by >80% while the collagen structure remained preserved. No remaining nuclei stained positive for Gal or NeuGc, and expression of these oligosaccharides on collagen was also greatly decreased compared to expression on fresh corneas. Human IgM/IgG binding to decellularized corneal tissue was considerably reduced compared to fresh corneal tissue. The cultured CECs formed a confluent monolayer on the surface of decellularized tissue.· CONCLUSION: Though incomplete, the significant reduction in the cellular component of the decellularized cornea should be associated with a significantly reduced in vivo immune response compared to fresh corneas.

关键词： cornea decellularization immuneresponse pig xenotransplantation

Differentiation of embryonic stem cells into insulin-producing cells promoted by Nkx2.2 gene transfer

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World Journal of Gastroenterology 2005年第27期11卷 4161-4166页

作者： Akira Shiroi Shigehiko Ueda Yukiteru Ouji Ko Saito Kei Moriya yuko Sugie Hiroshi Fukui Shigeaki Ishizaka Masahide Yoshikawa Division of Developmental Biology Department of Gastroenterology and Hepatology

AIM： To investigate the ability of a genetically altered embryonic stem （ES） cell line to generate insulin-producing cells in vitro following transfer of the Nkx2.2 ***： Hamster Nkx2.2 genes were transferred into mouse ES cells. Parental and Nkx2.2-transfected ES cells were initiated toward differentiation in embryoid body （EB） culture for 5 d and the resulting EBs were transferred to an attached culture system. Dithizone （DTZ）, a zincchelating agent known to selectively stain pancreatic beta cells, was used to detect insulin-producing *** outgrowths were incubated in DTZ solution （final concentration, 100μg/mL） for 15 rain before being examined microscopically. Gene expression of the endocrine pancreatic markers was also analyzed by RT-PCR. In addition, insulin production was determined immunohistochemically and its secretion was examined using an ***： DTZ-stained cellular clusters appeared after approximately 14 d in the culture of Nkx2.2-transfected ES cells （Nkx-ES cells）, which was as much as 2 wk earlier, than those in the culture of parental ES cells （wt-ES）. The frequency of DTZ-positive cells among total cultured cells on day 28 accounted for approximately 1.0% and 0.1% of the Nkx-ES- and wt-ES-derived EB outgrowths, respectively. The DTZ-positive cellular clusters were found to be immunoreactive to insulin, while the gene expressions of pancreatic-duodenal homeobox 1 （PDX1）, proinsulin 1 and proinsulin 2 were observed in the cultures that contained DTZ-positive cellular *** secretion was also confirmed by ELISA, whereas glucose-dependent secretion was not ***： Nkx2.2-transfected ES cells showed an ability to differentiate into insulin-producing cells.

关键词： Animals Cell Differentiation Cell Line Cricetinae Gene Transfer Techniques Homeodomain Proteins Insulin Islets of Langerhans Mice Mice, Inbred Strains Stem Cells Transcription Factors

Cryo-EM structure and rRNA modification sites of a plant ribosome

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Plant Communications 2022年第5期3卷 144-152页

作者： Patrick Cottilli Yuzuru Itoh yuko Nobe Anton S.Petrov Purificacion Lison Masato Taoka Alexey Amunts Science for Life Laboratory Department of Biochemistry and BiophysicsStockholm University17165 SolnaSweden Department of Chemistry Graduate School of ScienceTokyo Metropolitan UniversityMinami-osawa 1-1Hachioji-shiTokyo 192-0397Japan School of Chemistry and Biochemistry Georgia Institute of TechnologyAtlantaGAUSA Instituto de Biologıa Molecular y Celular de Plantas Universitat Politecnica de Valencia(UPV)-Consejo Superior de Investigaciones Cientıficas(CSIC)Ciudad Politecnica de la Innovacion(CPI)Valencia 46022Spain

Protein synthesis in crop plants contributes to the balance of food and fuel on our planet,which influences human metabolic activity and *** synthesis can be regulated with respect to changing environmental cues via the deposition of chemical modifications into ***,we present the structure of a plant ribosome from tomato and a quantitative mass spectrometry analysis of its *** study reveals fine features of the ribosomal proteins and 71 plant-specific rRNA modifications,and it re-annotates 30 rRNA residues in the available *** the protein level,isoAsp is found in position 137 of uS11,and a zinc finger previously believed to be universal is missing from eL34,suggesting a lower effect of zinc defi-ciency on protein synthesis in *** the rRNA level,the plant ribosome differs markedly from its human counterpart with respect to the spatial distribution of ***,it represents an additional layer of gene expression regulation,highlighting the molecular signature of a plant *** results provide a reference model of a plant ribosome for structural studies and an accurate marker for molecular ecology.

关键词： plant tomato ribosome RNA structure

SD3, an Arabidopsis thaliana Homolog of TIM21, Affects Intracellular ATP Levels and Seedling Development

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Molecular Plant 2012年第2期5卷 461-471页

作者： Hidefumi Hamasaki Takeshi Yoshizumi Naoki Takahashi Mieko Higuchi Takashi Kuromori yuko Imura Hiroaki Shimada Minami Matsui Plant Functional Genomics Research Group Plant Science Center RIKEN Yokohama Institute 1-7-22 Suehiro-cho Tsurumi-ku Yokohama Kanagawa 230-0045 Japan Department of Biological Science and Technology Tokyo University of Science 2641 Yamazaki Noda Chiba 278-8510 Japan Gene Discovery Research Group RIKEN Plant Science Center RIKEN Yokohama Institute 1-7-22 Suehiro-cho Tsurumi-ku Yokohama Kanagawa 230-0045 Japan

It is poorly understood how plants control their growth by cell division, elongation, and differentiation. We have characterized a seedling-lethal mutant segregation distortion 3 （sd3） that showed a very dwarf phenotype when grown in the light and, in the dark, had short hypocotyls with reduced ploidy levels. The corresponding gene of SD3 encodes a protein with high similarity to yeast translocase on the inner mitochondrial membrane 21 （TIM21）, which is a component of the TIM23 complex. Indeed, SD3 protein fused to GFP localized in the mitochondria. SD3 overexpression increased cotyledon size in the light and hypocotyl thickness in the dark. The expression of genes for several subunits of the respiratory-chain complexes III and IV was up-regulated in SD3-overexpressing plants. Furthermore, these plants showed high levels of ATP whereas those of sd3 were low. These results suggested that SD3 induced an increase in cell size by raising the expression of the respiratory-chain subunit genes and hence increased the intracellular ATP levels, We propose that intracellular ATP levels regulated by mitochondria control plant organ size.

关键词： hypocotyl elongation endoreduplication mitochondria ATR

An Exploration of the Relationship between Maternal and Child Factors Contributing to Child Abuse

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Open Journal of Nursing 2020年第10期10卷 989-1012页

作者： yuko Harding Mitsue Nakamura Graduate School of Health Sciences University of the Ryukyus Nishihara Japan Faculty of Nursing Chukyo Gakuin University Mizunami Japan

Background: There are many reports in the mass media and scientific literature about child abuse caused by parents. Medical practitioners also are concerned about child abuse and need to grapple with the prevention and early detection of child abuse when working in medical facilities. Aim: The aim of this descriptive study was to explore the relationship between maternal and child factors contributing to child abuse. Methods: A sample of 50 multiparas (mothers with more than 1 child) in a 48-bed postpartum hospital unit in Okinawa prefecture were asked to fill out an anonymous questionnaire regarding the relationship between mothers and their first child in September, 2007. The questionnaire contained 30 items of physical punishment that are quoted from “The Handbook of Correspondence to Child Abuse” (Ministry of Health, Labor and welfare in Japan), 24 items relating to maternal factors and 22 items to child factors, plus items related to mothers’ satisfaction with the health guidance given in the hospital. Data were analyzed using JMP (ver. 14.2;SAS Institute Inc., Cary, NC, U.S.). The significance level was set at 0.05. Results: Forty-one (82%) questionnaires were analyzed. Of the 41 valid responses, 19 mothers reported abusing their children. Child factors contributing to the abuse included the first child’s regression to infantile behavior, bullying younger brothers or sisters and being rough and violent to their friends. The significant maternal factor leading to abuse was the belief that mothers were irritated by their child. Conclusion: A first child’s developmental difficulties had a significant relationship with the harsh punishment by their mothers. The mothers need to understand their child’s developmental behavior and provide a favorable environment for nurturing young children.

关键词： Child Abuse Factor Maternal First Child Environment

Relationship between Female Sexual Function and Depression or Anxiety in Japan

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Open Journal of Nursing 2022年第5期12卷 376-398页

作者： yuko Harding Shinichiro Ueda Faculty of Nursing Chukyo Gakuin University Mizunami Japan Graduate School of Medical Sciences University of the Ryukyus Nishihara Japan

Background: Sexual dysfunction is sexual complaints or disorders. There are various causes, but the onset leads to deterioration of relationships and quality of life with partners. There is still a deep-rooted awareness that sexuality is a secret in Japan. Aim: This study aims to clarify the relationship between female sexual function and depression or anxiety. Method: Four hundred and fifty-eight Japanese healthy women who worked in four randomly selected medical institutions in Okinawa Prefecture in Japan from March to May 2012 were asked to agree to a consent form of their own free will and participate in self-reported questionnaires. For their evaluation, the Female Sexual Function Index (FSFI;Rosen et al. 2000, which includes the six domains of desire, arousal, lubrication, orgasm, pain, and satisfaction) and the Kessler Psychological Distress Scale (K6;Kessler, 2002, which includes the following six items: felt nervous, hopeless, restless or fidgety, worthless, depressed, and felt that everything was an effort) was used. Moreover, participants’ characteristics showed age, marriage, menopause, annual income, and drinking. In addition, JMP16.2 and R 4.2.0 was used to perform Pearson’s chi-square test, Fisher’s exact test, Mann-Whitney U test, Kruskal-Wallis test, Steel-Dwass test, Spearman’s Rank-Order Correlation, and Cronbach’s alpha. This study was approved by the university and the medical institutional review board (IRB). Results: 178 women were included in the final analysis, and the median (IQR, interquartile range) was 39 (32 - 48) years old, and the mean ± SD (standard deviation) was 40.2 ± 10.4 years old. The median (IQR) and mean ± SD of FSFI Total Score were 22.0 (9.3 - 26.6) and 19.2 ± 9.6. The median (IQR) and the mean ± SD of K6 Total Score were 3 (0 - 7) and 4.2 ± 4.5. 16% of all women with a K6 Total Score of 10 and more, and 5% of all women with a K6 Total Score of 13 and more considered a serious mental illness. There was no clear association

关键词： Female Sexual Dysfunction (FSD) Female Sexual Function Index (FSFI) Depression Anxiety Kessler Psychological Distress Scale (K6)

The Effect of Stress, Fatigue, and Sleep Quality on Shift-Work Nurses in Japan

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Health 2023年第3期15卷 239-250页

作者： Mio Hosona yuko Uesugi Graduate School of Nursing Osaka Metropolitan University Osaka Japan Department of Nursing Kinjo Gakuin University Nagoya Japan

Purpose: To investigate the relationship between stress, fatigue and sleep quality among shift work nurses in Japan. Design: A descriptive correlation design using self-administered surveys. Methods: Questionnaires on stress, fatigue and sleep quality (the Pittsburgh Sleep Quality Index;PSQI-J) among shift work nurses were distributed to 653 nurses in Japan from January 2015 to February 2015. Results: Participants who reported higher levels of fatigue reported higher levels of stress (r = 0.774, p = 0.000), lower levels of sleep satisfaction (r = −0.411, p = 0.000) and overall lower levels of health (r = −0.323, p = 0.000).PSQI scores were also significantly correlated with reported levels of stress (r = 0.294, p = 0.000), fatigue (r = 0.291, p = 0.000) and levels of health (r = −0.370, p = 0.000). Nurses who have stress-relieving recourses were younger (t = −2.842, p = 0.005), reported higher levels of overall health (t = 2.727, p = 0.007), had higher levels of sleep quality measured by the PSQI (t = −2.560, p = 0.011), and required less time to fall asleep (t = −3.207, p = 0.001). Conclusions: This study showed an association between stress and sleep satisfaction among shift work nurses in Japan. In addition, nurses that engage in activities to manage stress might achieve higher levels of health and high sleep quality.

关键词： Shift Work Nurse Fatigue Sleep Quality

Massive low-grade myxoid liposarcoma of the floor of the mouth:A case report and review of literature

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World Journal of Clinical Cases 2022年第34期10卷 12742-12749页

作者： Takuma Kugimoto yuko Yamagata Toshimitsu Ohsako Hideaki Hirai Naoto Nishii Kou Kayamori Tohru Ikeda Hiroyuki Harada Department of Oral and Maxillofacial Surgical Oncology Division of Oral Health ScienceGraduate School of Medical and Dental SciencesTokyo Medical and Dental UniversityBunkyo-ku 113-8549TokyoJapan Department of Oral Pathology Division of Oral Health ScienceGraduate School of Medical and Dental SciencesTokyo Medical and Dental UniversityBunkyo-ku 113-8549TokyoJapan

BACKGROUND Oral liposarcoma is an extremely rare lesion that is often clinically misdiagnosed as a benign tumor due to its asymptomatic and indolent clinical ***,we report a case of massive low-grade myxoid liposarcoma(MLS)of the floor of the *** SUMMARY A 71-year-old man presented with a huge mass in the left floor of the mouth.A biopsy was performed,and a diagnosis of a myxoid tumor suspicious for lowgrade MLS or myxoma was ***-enhanced T1-weighted magnetic resonance imaging showed an intensely enhanced tumor lesion that occupies the left sublingual space and extends to the submandibular *** dissection,tumor resection,and reconstruction with a radial forearm flap were *** surgical specimen exhibited histologically low-grade *** in sarcoma(FUS,also known as TLS)and DNA damage-inducible transcript 3(DDIT3,also known as CHOP)break-apart was not detected in the fluorescence in situ hybridization *** tumor was completely encapsulated and did not require additional ***,no recurrence was reported 40 mo after *** We experienced an extremely rare,massive,low-grade MLS emerging from the floor of the ***,an MLS of the floor of the mouth lacks significant clinical findings and is often *** no FUS-DDIT3 fusion gene was detected,a low-grade MLS was ultimately diagnosed based on the histological findings.

关键词： Myxoid liposarcoma Floor of mouth Surgery Fluorescence in situ hybridization Sublingual space Case report