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https://www.readbyqxmd.com/read/29290616/reconstruction-of-the-human-colon-epithelium-in%C3%A2-vivo
#1
Shinya Sugimoto, Yuki Ohta, Masayuki Fujii, Mami Matano, Mariko Shimokawa, Kosaku Nanki, Shoichi Date, Shingo Nishikori, Yoshihiro Nakazato, Tetsuya Nakamura, Takanori Kanai, Toshiro Sato
Genetic lineage tracing has revealed that Lgr5+ murine colon stem cells (CoSCs) rapidly proliferate at the crypt bottom. However, the spatiotemporal dynamics of human CoSCs in vivo have remained experimentally intractable. Here we established an orthotopic xenograft system for normal human colon organoids, enabling stable reconstruction of the human colon epithelium in vivo. Xenografted organoids were prone to displacement by the remaining murine crypts, and this could be overcome by complete removal of the mouse epithelium...
December 21, 2017: Cell Stem Cell
https://www.readbyqxmd.com/read/29212132/urological-laparoendoscopic-single-site-and-reduced-port-surgery-a-nationwide-survey-in-japan
#2
Mitsuhiro Narita, Susumu Kageyama, Takatsugu Okegawa, Hidefumi Kinoshita, Fuminori Sato, Ken Nakagawa, Tomonori Habuchi, Akio Hoshi, Akio Matsubara, Koji Yoshimura, Toshiro Terachi, Hiromitsu Mimata, Akihiro Kawauchi
OBJECTIVES: To evaluate the current status of urological laparoendoscopic single-site and reduced port surgery in Japan. METHODS: Of the 152 institutions to which councilors of the Japanese Society of Endourology belong, 42 (28%) have carried out laparoendoscopic single-site and reduced port surgery. A total of 32 of these institutions agreed to participate in this survey. Patients who had undergone surgery between January 2008 and March 2014 were included in the present study...
December 6, 2017: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/29204508/advancing-intestinal-organoid-technology-toward-regenerative%C3%A2-medicine
#3
REVIEW
Tetsuya Nakamura, Toshiro Sato
With the emergence of technologies to culture intestinal epithelial cells in vitro as various forms of intestinal organoids, there is growing interest in using such cultured intestinal cells as a source for tissue engineering and regenerative medicine. One such approach would be to combine the organoid technology with methodologies to engineer the culture environment, particularly the three-dimensional scaffold materials, to generate intestines that exquisitely recapitulate their original structures and functions...
2018: Cellular and Molecular Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29198428/corrigendum-to-antimicrobial-susceptibility-of-pathogens-isolated-from-surgical-site-infections-in-japan-comparison-of-data-from-nationwide-surveillance-studies-conducted-in-2010-and-2014-2015-j%C3%A2-infect-chemother-23-2017-339-348
#4
Yoshio Takesue, Shinya Kusachi, Hiroshige Mikamo, Junko Sato, Akira Watanabe, Hiroshi Kiyota, Satoshi Iwata, Mitsuo Kaku, Hideaki Hanaki, Yoshinobu Sumiyama, Yuko Kitagawa, Toru Mizuguchi, Yoshiyasu Ambo, Masafumi Konosu, Keiichiro Ishibashi, Akihisa Matsuda, Kazuo Hase, Yasushi Harihara, Koji Okabayashi, Shiko Seki, Takuo Hara, Koshi Matsui, Yoichi Matsuo, Minako Kobayashi, Shoji Kubo, Kazuhisa Uchiyama, Junzo Shimizu, Ryohei Kawabata, Hiroki Ohge, Shinji Akagi, Masaaki Oka, Toshiro Wakatsuki, Katsunori Suzuki, Kohji Okamoto, Katsunori Yanagihara
No abstract text is available yet for this article.
November 29, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/29155949/pseudoaneurysm-rupture-after-acute-type-a-dissection-repair-possible-reaction-to-bioglue
#5
Toshiro Kobayashi, Hiroshi Kurazumi, Masafumi Sato, Hidenori Gohra
A 45-year-old man with acute Type A aortic dissection underwent the ascending aorta replacement with BioGlue (CryoLife Europa, Guildford, Surrey, UK) for anastomotic reinforcement. Postoperatively, he developed descending aortic dilation, a giant mediastinal cyst, Henoch-Schonlein purpura and an anastomotic-site pseudoaneurysm rupture. A BioGlue-induced inflammatory reaction was likely, according to a positive patch test (delayed allergic reaction).
October 9, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29069492/lectin-zg16p-inhibits-proliferation-of-human-colorectal-cancer-cells-via-its-carbohydrate-binding-sites
#6
Akiko Mito, Yukiko Nakano, Takako Saitoh, Sabine S S Gouraud, Yoshiki Yamaguchi, Toshiro Sato, Nobuo Sasaki, Kyoko Kojima-Aikawa
Zymogen granule protein 16 (ZG16p) is a soluble lectin that binds to both mannose and heparin/heparan sulfate. It is highly expressed in the human digestive tract and is secreted into the mucus. In this study, we investigated the effect of ZG16p on the proliferation of human colorectal cancer cells. Overexpression of ZG16p in Caco-2 cells decreased cell growth. Recombinant ZG16p markedly inhibited proliferation of Caco-2, LS174T, HCT116 and HCT15 cells. Caco-2 cell growth was not inhibited by two mutated ZG16p proteins, D151A and M5 (K36A, R37A, R53A, R55A and R79A) lacking mannose- and heparin-binding activities, respectively...
October 23, 2017: Glycobiology
https://www.readbyqxmd.com/read/28856871/pfannenstiel-laparoendoscopic-reduced-port-bilateral-radical-nephrectomy-for-a-patient-with-renal-cell-carcinoma-undergoing-hemodialysis
#7
Takeo Nomura, Mutsushi Yamasaki, Kohei Takei, Fuminori Sato, Toshiro Terachi, Hiromitsu Mimata
We performed Pfannenstiel laparoendoscopic reduced-port bilateral radical nephrectomy on a patient with renal cell carcinoma undergoing hemodialysis. A 4-cm Pfannenstiel incision was made, and a GelPOINT access was inserted. Three trocars were placed through the access platform, and additional 5- and 3-mm trocars were inserted in the umbilicus and paraumbilical area, respectively. After left nephrectomy, right nephrectomy was successfully completed in 401 min, with an estimated blood loss of 70 mL. There were no intraoperative or postoperative complications, and the patient was discharged 10 days postoperatively...
August 30, 2017: Asian Journal of Endoscopic Surgery
https://www.readbyqxmd.com/read/28813664/intestinal-dysbiosis-and-biotin-deprivation-induce-alopecia-through-overgrowth-of-lactobacillus-murinus-in-mice
#8
Atsushi Hayashi, Yohei Mikami, Kentaro Miyamoto, Nobuhiko Kamada, Toshiro Sato, Shinta Mizuno, Makoto Naganuma, Toshiaki Teratani, Ryo Aoki, Shinji Fukuda, Wataru Suda, Masahira Hattori, Masayuki Amagai, Manabu Ohyama, Takanori Kanai
Metabolism by the gut microbiota affects host physiology beyond the gastrointestinal tract. Here, we find that antibiotic-induced dysbiosis, in particular, overgrowth of Lactobacillus murinus (L. murinus), impaired gut metabolic function and led to the development of alopecia. While deprivation of dietary biotin per se did not affect skin physiology, its simultaneous treatment with vancomycin resulted in hair loss in specific pathogen-free (SPF) mice. Vancomycin treatment induced the accumulation of L. murinus in the gut, which consumes residual biotin and depletes available biotin in the gut...
August 15, 2017: Cell Reports
https://www.readbyqxmd.com/read/28808580/the-detection-of-influenza-virus-at-the-community-pharmacy-to-improve-the-management-of-local-residents-with-influenza-or-influenza-like-disease
#9
Akio Kawachi, Yusuke Sakamoto, Shunya Mouri, Mitsuaki Fukumori, Riku Kawano, Takaya Murakami, Junichiro Sonoda, Keiko Narumi, Yoshihiro Shimodozono, Kenji Etoh, Susumu Chiyotanda, Takashi Furuie, Keizo Sato, Masao Fukumori, Toshiro Motoya
BACKGROUND: As of 2014, community pharmacies in Japan are approved by the Ministry of Health, Labour and Welfare to measure lipid panel, HbA1c, glucose, ALT, AST and γ-GTP, but not to screen for influenza virus. We provided influenza virus screening tests at a community pharmacy to triage people with symptoms suggestive of influenza. Participants were given appropriate advice on how to prevent the spread of and safeguard against influenza. We subsequently evaluated the effects of community pharmacy-based influenza virus screening and prevention measures...
2017: Journal of Pharmaceutical Health Care and Sciences
https://www.readbyqxmd.com/read/28720124/defining-the-role-of-lgr5-stem-cells-in-colorectal-cancer-from-basic-research-to-clinical-applications
#10
REVIEW
Masayuki Fujii, Toshiro Sato
Intestinal epithelium is structured by two distinct components: the villi and the crypts. The crypts harbor stem cells expressing Lgr5 and thus have been a representative model to study tissue stem cell functions. Recent advances in organoid technology and analytical modalities have enabled precise characterization of Lgr5(+) intestinal stem cells, providing insights into their roles in homeostasis and cancer.
July 18, 2017: Genome Medicine
https://www.readbyqxmd.com/read/28637334/new-predictor-of-aortic-enlargement-in-uncomplicated-type-b-aortic-dissection-based-on-elliptic-fourier-analysis
#11
Hiroshi Sato, Toshiro Ito, Yosuke Kuroda, Hiroki Uchiyama, Toshitaka Watanabe, Naomi Yasuda, Junji Nakazawa, Ryo Harada, Nobuyoshi Kawaharada
OBJECTIVES: This study aimed to re-examine the conventional predictive factors for dissected aortic enlargement, such as the aortic and false lumen diameter and to consider whether the morphological elements of the dissected aorta could be predictors by quantifying the 'shape' of the true lumen based on elliptic Fourier analysis. METHODS: A total of 80 patients with uncomplicated type B aortic dissection were included. The patients were divided into 'Enlargement group' and 'No Change group...
December 1, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28634937/establishment-of-3d-intestinal-organoid-cultures-from-intestinal-stem-cells
#12
Shinya Sugimoto, Toshiro Sato
The intestinal epithelium is the most rapidly renewed tissue in adult mammals, and its renewal is strictly controlled by intestinal stem cells. Extensive studies using genetic models of intestinal epithelium have revealed the mechanisms underlying the self-renewal of intestinal stem cells. Exploiting this knowledge, we developed a novel 3D culture system that enables the outgrowth of intestinal Lgr5(+) stem cells derived from mouse and human tissues into ever-expanding crypt-villus mini-guts, known as intestinal epithelial organoids...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28604288/laparoendoscopic-single-site-nephrectomy-for-hemodialysis-patients-with-dialysis-related-renal-tumors
#13
Kohei Takei, Mutsushi Yamasaki, Satoki Abe, Naoyuki Yamanaka, Shinya Sejiyama, Takahiro Narimatsu, Shinro Hata, Tadamasa Shibuya, Kenichi Hirai, Tadasuke Ando, Toshitaka Shin, Kenichi Mori, Yasuhiro Sumino, Takeo Nomura, Fuminori Sato, Toshiro Terachi, Hiromitsu Mimata
PURPOSE: The purpose of this study is to assess the efficacy of laparoendoscopic single-site (LESS) nephrectomy in hemodialysis patients, we compared outcomes between LESS nephrectomy and conventional laparoendoscopic nephrectomy in hemodialysis patients with dialysis-related renal tumors. MATERIAL AND METHODS: A total of 16 hemodialysis patients who underwent LESS nephrectomy (LESS-N; n = 8) or conventional laparoendoscopic nephrectomy (C-N; n = 8) between November 2003 and July 2012 were retrospectively evaluated...
June 12, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28512157/il-22bp-dictates-characteristics-of-peyer-s-patch-follicle-associated-epithelium-for-antigen-uptake
#14
Toshi Jinnohara, Takashi Kanaya, Koji Hase, Sayuri Sakakibara, Tamotsu Kato, Naoko Tachibana, Takaharu Sasaki, Yusuke Hashimoto, Toshiro Sato, Hiroshi Watarai, Jun Kunisawa, Naoko Shibata, Ifor R Williams, Hiroshi Kiyono, Hiroshi Ohno
Interleukin-22 (IL-22) acts protectively and harmfully on intestinal tissue depending on the situation; therefore, IL-22 signaling needs to be tightly regulated. IL-22 binding protein (IL-22BP) binds IL-22 to inhibit IL-22 signaling. It is expressed in intestinal and lymphoid tissues, although its precise distribution and roles have remained unclear. In this study, we show that IL-22BP is highly expressed by CD11b(+)CD8α(-) dendritic cells in the subepithelial dome region of Peyer's patches (PPs). We found that IL-22BP blocks IL-22 signaling in the follicle-associated epithelium (FAE) covering PPs, indicating that IL-22BP plays a role in regulating the characteristics of the FAE...
June 5, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28443603/hard-x-ray-photoemission-study-of-yb1-x-zr-x-b12-the-effects-of-electron-doping-on-the-kondo-insulator-ybb12
#15
A Rousuli, H Sato, F Iga, K Hayashi, K Ishii, T Wada, T Nagasaki, K Mimura, H Anzai, K Ichiki, S Ueda, A Kondo, K Kindo, T Takabatake, K Shimada, H Namatame, M Taniguchi
We have carried out hard x-ray photoemission spectroscopy (HAXPES) of Yb1-x Zr x B12 ([Formula: see text]) to study the effects of electron doping on the Kondo insulator YbB12. The Yb valences of Yb1-x Zr x B12 at 300 K estimated from the Yb 3d HAXPES spectra decreased after substituting Yb with Zr from 2.93 for YbB12 to 2.83 for Yb0.125Zr0.875B12. A temperature dependent valence decrease was found upon cooling for all doping concentrations. We found peak shifts of the B 1s and Zr 3d5/2, and Yb(3+) 4f spectra toward the deeper binding-energy with increasing Zr concentration, which indicates a shift of the Fermi level to the higher energy and that of the Yb 4f hole level close to the Fermi level, respectively, due to electron doping...
July 5, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28414314/cell-competition-with-normal-epithelial-cells-promotes-apical-extrusion-of-transformed-cells-through-metabolic%C3%A2-changes
#16
Shunsuke Kon, Kojiro Ishibashi, Hiroto Katoh, Sho Kitamoto, Takanobu Shirai, Shinya Tanaka, Mihoko Kajita, Susumu Ishikawa, Hajime Yamauchi, Yuta Yako, Tomoko Kamasaki, Tomohiro Matsumoto, Hirotaka Watanabe, Riku Egami, Ayana Sasaki, Atsuko Nishikawa, Ikumi Kameda, Takeshi Maruyama, Rika Narumi, Tomoko Morita, Yoshiteru Sasaki, Ryosuke Enoki, Sato Honma, Hiromi Imamura, Masanobu Oshima, Tomoyoshi Soga, Jun-Ichi Miyazaki, Michael R Duchen, Jin-Min Nam, Yasuhito Onodera, Shingo Yoshioka, Junichi Kikuta, Masaru Ishii, Masamichi Imajo, Eisuke Nishida, Yoichiro Fujioka, Yusuke Ohba, Toshiro Sato, Yasuyuki Fujita
Recent studies have revealed that newly emerging transformed cells are often apically extruded from epithelial tissues. During this process, normal epithelial cells can recognize and actively eliminate transformed cells, a process called epithelial defence against cancer (EDAC). Here, we show that mitochondrial membrane potential is diminished in RasV12-transformed cells when they are surrounded by normal cells. In addition, glucose uptake is elevated, leading to higher lactate production. The mitochondrial dysfunction is driven by upregulation of pyruvate dehydrogenase kinase 4 (PDK4), which positively regulates elimination of RasV12-transformed cells...
May 2017: Nature Cell Biology
https://www.readbyqxmd.com/read/28391954/antimicrobial-susceptibility-of-pathogens-isolated-from-surgical-site-infections-in-japan-comparison-of-data-from-nationwide-surveillance-studies-conducted-in-2010-and-2014-2015
#17
Yoshio Takesue, Shinya Kusachi, Hiroshige Mikamo, Junko Sato, Akira Watanabe, Hiroshi Kiyota, Satoshi Iwata, Mitsuo Kaku, Hideaki Hanaki, Yoshinobu Sumiyama, Yuko Kitagawa, Toru Mizuguchi, Yoshiyasu Ambo, Masafumi Konosu, Keiichiro Ishibashi, Akihisa Matsuda, Kazuo Hase, Yasushi Harihara, Koji Okabayashi, Shiko Seki, Takuo Hara, Koshi Matsui, Yoichi Matsuo, Minako Kobayashi, Shoji Kubo, Kazuhisa Uchiyama, Junzo Shimizu, Ryohei Kawabata, Hiroki Ohge, Shinji Akagi, Masaaki Oka, Toshiro Wakatsuki, Katsunori Suzuki, Kohji Okamoto, Katsunori Yanagihara
A nationwide survey was conducted in Japan from 2014 to 2015 to investigate the antimicrobial susceptibility of pathogens isolated from surgical site infections (SSI). The resulting data were compared with that obtained in an earlier survey, conducted in 2010. Seven main organisms were collected, and 883 isolates were studied. A significant reduction in methicillin resistance was observed among Staphylococcus aureus isolates, dropping from 72.5% in 2010 to 53.8% in 2014-2015 (p < 0.001). MRSA isolates with a vancomycin minimum inhibitory concentration (MIC) of 2 μg/mL accounted for 1...
April 5, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28355176/visualization-and-targeting-of-lgr5-human-colon-cancer-stem-cells
#18
Mariko Shimokawa, Yuki Ohta, Shingo Nishikori, Mami Matano, Ai Takano, Masayuki Fujii, Shoichi Date, Shinya Sugimoto, Takanori Kanai, Toshiro Sato
The cancer stem cell (CSC) theory highlights a self-renewing subpopulation of cancer cells that fuels tumour growth. The existence of human CSCs is mainly supported by xenotransplantation of prospectively isolated cells, but their clonal dynamics and plasticity remain unclear. Here, we show that human LGR5+ colorectal cancer cells serve as CSCs in growing cancer tissues. Lineage-tracing experiments with a tamoxifen-inducible Cre knock-in allele of LGR5 reveal the self-renewal and differentiation capacity of LGR5+ tumour cells...
May 11, 2017: Nature
https://www.readbyqxmd.com/read/28320988/characterization-of-shiga-toxin-producing-escherichia-coli-from-feces-of-sika-deer-cervus-nippon-in-japan-using-pcr-binary-typing-analysis-to-evaluate-their-potential-human-pathogenicity
#19
Hidenori Kabeya, Shingo Sato, Shinya Oda, Megumi Kawamura, Mariko Nagasaka, Masanari Kuranaga, Eiji Yokoyama, Shinichiro Hirai, Atsushi Iguchi, Tomoe Ishihara, Toshiro Kuroki, Tomoko Morita-Ishihara, Sunao Iyoda, Jun Terajima, Makoto Ohnishi, Soichi Maruyama
This study examined the potential pathogenicity of Shiga toxin-producing Escherichia coli (STEC) in feces of sika deer by PCR binary typing (P-BIT), using 24 selected STEC genes. A total of 31 STEC strains derived from sika deer in 6 prefectures of Japan were O-serotyped and found to be O93 (n=12), O146 (n=5), O176 (n=3), O130 (n=3), O5 (n=2), O7 (n=1), O96 (n=1), O116 (n=1), O141 (n=1), O157 (n=1) and O-untypable (n=1). Of the 31 STEC strains, 13 carried both stx1 and stx2, 5 carried only stx1, and 13 carried one or two variants of stx2...
May 3, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28215079/effect-of-furan-fatty-acids-and-3-methyl-2-4-nonanedione-on-light-induced-off-odor-in-soybean-oil
#20
Takashi Sano, Ryo Okabe, Maiko Iwahashi, Jun Imagi, Toshiro Sato, Toshiyuki Yamashita, Eiichiro Fukusaki, Takeshi Bamba
Soybean oil is one of the most widely consumed vegetable oils. However, under photooxidative conditions, this oil develops a beany and green off-odor through a mechanism that has not yet been elucidated. Upon photooxidation, 3-methyl-2,4-nonanedione (3-MND) produces a strong aroma. In this study, the effect of furan fatty acids and 3-MND on odor reversion in soybean oil was investigated. Our findings suggest that the observed light-induced off-odor was likely attributable to the furan fatty acids present in the oil through the generation of 3-MND...
March 15, 2017: Journal of Agricultural and Food Chemistry
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