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Yagi hiroshi

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https://www.readbyqxmd.com/read/28484370/clustered-protocadherins-are-required-for-building-functional-neural-circuits
#1
Sonoko Hasegawa, Hiroaki Kobayashi, Makiko Kumagai, Hiroshi Nishimaru, Etsuko Tarusawa, Hiro Kanda, Makoto Sanbo, Yumiko Yoshimura, Masumi Hirabayashi, Takahiro Hirabayashi, Takeshi Yagi
Neuronal identity is generated by the cell-surface expression of clustered protocadherin (Pcdh) isoforms. In mice, 58 isoforms from three gene clusters, Pcdhα, Pcdhβ, and Pcdhγ, are differentially expressed in neurons. Since cis-heteromeric Pcdh oligomers on the cell surface interact homophilically with that in other neurons in trans, it has been thought that the Pcdh isoform repertoire determines the binding specificity of synapses. We previously described the cooperative functions of isoforms from all three Pcdh gene clusters in neuronal survival and synapse formation in the spinal cord...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28446822/anti-mycobacterium-activity-of-microbial-peptides-in-a-silkworm-infection-model-with-mycobacterium-smegmatis
#2
Akiho Yagi, Ryuji Uchida, Hiroshi Hamamoto, Kazuhisa Sekimizu, Ken-Ichi Kimura, Hiroshi Tomoda
An in vivo-mimic silkworm infection model with Mycobacterium smegmatis was established. When silkworms were raised at 37 °C following an injection of M. smegmatis cells (1.25 × 10(7) CFU larva(-1) g(-1)) into the silkworm hemolymph, they died within 48 h. Under these conditions, four microbial peptides with anti-M. smegmatis activity, lariatin A, calpinactam, lysocin E and propeptin, exerted therapeutic effects in a dose-dependent manner, and these are also clinically used agents that are active against Mycobacterium tuberculosis...
May 2017: Journal of Antibiotics
https://www.readbyqxmd.com/read/28418019/live-imaging-of-h3k9-acetylation-in-plant-cells
#3
Kazuki Kurita, Takuya Sakamoto, Noriyoshi Yagi, Yuki Sakamoto, Akihiro Ito, Norikazu Nishino, Kaori Sako, Minoru Yoshida, Hiroshi Kimura, Motoaki Seki, Sachihiro Matsunaga
Proper regulation of histone acetylation is important in development and cellular responses to environmental stimuli. However, the dynamics of histone acetylation at the single-cell level remains poorly understood. Here we established a transgenic plant cell line to track histone H3 lysine 9 acetylation (H3K9ac) with a modification-specific intracellular antibody (mintbody). The H3K9ac-specific mintbody fused to the enhanced green fluorescent protein (H3K9ac-mintbody-GFP) was introduced into tobacco BY-2 cells...
April 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28413396/mammary-analogue-secretory-carcinoma-presenting-as-a-cervical-lymph-node-metastasis-of-unknown-primary-site-a-case-report
#4
Kensuke Suzuki, Masao Yagi, Akira Kanda, Yoshiki Kobayashi, Masaya Konishi, Chika Miyasaka, Takashi Tashiro, Hiroshi Iwai
BACKGROUND: Mammary analogue secretory carcinoma (MASC) is a pathological entity arising in the salivary glands first described by Skalova et al. [Am J Surg Pathol 2010;34: 599-608]. Here, we report the first case of MASC presenting as a cervical lymph node metastasis of unknown primary site together with a brief review of the literature. CASE REPORT: We present a 74-year-old male with a painless lump in his left neck. Based on the fine-needle aspiration cytological findings, a possible malignant tumor was suspected...
January 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28328981/dysbiosis-and-compositional-alterations-with-aging-in-the-gut-microbiota-of-patients-with-heart-failure
#5
Takehiro Kamo, Hiroshi Akazawa, Wataru Suda, Akiko Saga-Kamo, Yu Shimizu, Hiroki Yagi, Qing Liu, Seitaro Nomura, Atsuhiko T Naito, Norifumi Takeda, Mutsuo Harada, Haruhiro Toko, Hidetoshi Kumagai, Yuichi Ikeda, Eiki Takimoto, Jun-Ichi Suzuki, Kenya Honda, Hidetoshi Morita, Masahira Hattori, Issei Komuro
Emerging evidence has suggested a potential impact of gut microbiota on the pathophysiology of heart failure (HF). However, it is still unknown whether HF is associated with dysbiosis in gut microbiota. We investigated the composition of gut microbiota in patients with HF to elucidate whether gut microbial dysbiosis is associated with HF. We performed 16S ribosomal RNA gene sequencing of fecal samples obtained from 12 HF patients and 12 age-matched healthy control (HC) subjects, and analyzed the differences in gut microbiota...
2017: PloS One
https://www.readbyqxmd.com/read/28320204/coordination-nanosheets-based-on-terpyridine-zinc-ii-complexes-as-photoactive-host-materials
#6
Takamasa Tsukamoto, Kenji Takada, Ryota Sakamoto, Ryota Matsuoka, Ryojun Toyoda, Hiroaki Maeda, Toshiki Yagi, Michihiro Nishikawa, Naoaki Shinjo, Shuntaro Amano, Tadashi Iokawa, Narutaka Ishibashi, Tsugumi Oi, Koshiro Kanayama, Rina Kinugawa, Yoichiro Koda, Toshiyuki Komura, Shuhei Nakajima, Ryota Fukuyama, Nobuyuki Fuse, Makoto Mizui, Masashi Miyasaki, Yutaro Yamashita, Kuni Yamada, Wenxuan Zhang, Ruocheng Han, Wenyu Liu, Taro Tsubomura, Hiroshi Nishihara
Photoluminescent coordination nanosheets (CONASHs) comprising three-way terpyridine (tpy) ligands and zinc(II) ions are created by allowing the two constitutive components to react with each other at a liquid/liquid interface. Taking advantage of bottom-up CONASHs, or flexibility in organic ligand design and coordination modes, we demonstrate the diversity of the tpy-zinc(II) CONASH in structures and photofunctions. A combination of 1,3,5-tris[4-(4'-2,2':6',2″-terpyridyl)phenyl]benzene (1) and Zn(BF4)2 affords a cationic CONASH featuring the bis(tpy)Zn complex motif (1-Zn), while substitution of the zinc source with ZnSO4 realizes a charge-neutral CONASH with the [Zn2(μ-O2SO2)2(tpy)2] motif [1-Zn2(SO4)2]...
April 4, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28290532/platonic-micelles-monodisperse-micelles-with-discrete-aggregation-numbers-corresponding-to-regular-polyhedra
#7
Shota Fujii, Shimpei Yamada, Sakiko Matsumoto, Genki Kubo, Kenta Yoshida, Eri Tabata, Rika Miyake, Yusuke Sanada, Isamu Akiba, Tadashi Okobira, Naoto Yagi, Efstratios Mylonas, Noboru Ohta, Hiroshi Sekiguchi, Kazuo Sakurai
The concept of micelles was first proposed in 1913 by McBain and has rationalized numerous experimental results of the self-aggregation of surfactants. It is generally agreed that the aggregation number (Nagg) for spherical micelles has no exact value and a certain distribution. However, our studies of calix[4]arene surfactants showed that they were monodisperse with a defined Nagg whose values are chosen from 6, 8, 12, 20, and 32. Interestingly, some of these numbers coincide with the face numbers of Platonic solids, thus we named them "Platonic micelles"...
March 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28261874/samp8-mice-as-a-neuropathological-model-of-accelerated-brain-aging-and-dementia-toshio-takeda-s-legacy-and-future-directions
#8
REVIEW
Ichiro Akiguchi, Mercè Pallàs, Herbert Budka, Haruhiko Akiyama, Masaki Ueno, Jingxian Han, Hideo Yagi, Tomohumi Nishikawa, Yoichi Chiba, Hiroshi Sugiyama, Ryoya Takahashi, Keiko Unno, Keiichi Higuchi, Masanori Hosokawa
Senescence accelerated mice P8 (SAMP8) show significant age-related deteriorations in memory and learning ability in accordance with early onset and rapid advancement of senescence. Brains of SAMP8 mice reveal an age-associated increase of PAS-positive granular structures in the hippocampal formation and astrogliosis in the brain stem and hippocampus. A spongy degeneration in the brain stem appears at 1 month of age and reaches a maximum at 4-8 months. In addition, clusters of activated microglia also appear around the vacuoles in the brain stem...
March 6, 2017: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/28251761/3d-structural-analysis-of-protein-o-mannosyl-kinase-pomk-a-causative-gene-product-of-dystroglycanopathy
#9
Masamichi Nagae, Sushil K Mishra, Makiko Neyazaki, Rika Oi, Akemi Ikeda, Naohiro Matsugaki, Satoko Akashi, Hiroshi Manya, Mamoru Mizuno, Hirokazu Yagi, Koichi Kato, Toshiya Senda, Tamao Endo, Terukazu Nogi, Yoshiki Yamaguchi
Orchestration of the multiple enzymes engaged in O-mannose glycan synthesis provides a matriglycan on α-dystroglycan (α-DG) which attracts extracellular matrix (ECM) proteins such as laminin. Aberrant O-mannosylation of α-DG leads to severe congenital muscular dystrophies due to detachment of ECM proteins from the basal membrane. Phosphorylation at C6-position of O-mannose catalyzed by protein O-mannosyl kinase (POMK) is a crucial step in the biosynthetic pathway of O-mannose glycan. Several mis-sense mutations of the POMK catalytic domain are known to cause a severe congenital muscular dystrophy, Walker-Warburg syndrome...
April 2017: Genes to Cells: Devoted to Molecular & Cellular Mechanisms
https://www.readbyqxmd.com/read/28250351/kinetic-study-of-the-equilibration-between-carminic-acid-and-its-two-isomers-isolated-from-cochineal-dye
#10
Kazumasa Zaima, Azusa Fukamachi, Ryoko Yagi, Yusai Ito, Naoki Sugimoto, Hiroshi Akiyama, Kazufusa Shinomiya, Naoki Harikai
Carminic acid (CA) is a major component of cochineal dye used in food additives, cosmetics, and pharmaceuticals. CA and its isomers, 2-C-α-glucofuranoside and 2-C-β-glucofuranoside of kermesic acid (DCIV and DCVII, respectively), were isolated from cochineal dye and the equilibrium constants (K) between CA, DCIV and DCVII were investigated. DCIV was partially converted to CA and DCVII, and DCVII was converted to CA and DCIV, whereas CA was very stable and only very slightly converted to DCIV and DCVII. Most of the DCIV and DCVII was converted to CA under aqueous conditions...
2017: Chemical & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28240405/photofunctionality-in-porphyrin-hybridized-bis-dipyrrinato-zinc-ii-complex-micro-and-nanosheets
#11
Ryota Sakamoto, Toshiki Yagi, Ken Hoshiko, Shinpei Kusaka, Ryota Matsuoka, Hiroaki Maeda, Zheng Liu, Qian Liu, Wai-Yeung Wong, Hiroshi Nishihara
New bis(dipyrrinato)zinc(II) complex micro- and nanosheets containing zinc(II) porphyrin (N2) are synthesized. A liquid/liquid interface method between dipyrrin porphyrin ligand L2 and zinc acetate produces N2 with a large domain size. N2 can be layered quantitatively onto a flat substrate by a modified Langmuir-Schäfer method. N2 deposited on a SnO2 electrode functions as a photoanode for a photoelectric conversion system. The photoresponse of N2 covers the whole visible wavelength range (400-650 nm), with a maximum quantum efficiency of more than twice that of a bis(dipyrrinato)zinc(II) complex nanosheet without porphyrin...
February 27, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28235632/utility-of-comprehensive-genomic-sequencing-for-detecting-her2-positive-colorectal-cancer
#12
Yoshifumi Shimada, Ryoma Yagi, Hitoshi Kameyama, Masayuki Nagahashi, Hiroshi Ichikawa, Yosuke Tajima, Takuma Okamura, Mae Nakano, Masato Nakano, Yo Sato, Takeaki Matsuzawa, Jun Sakata, Takashi Kobayashi, Hitoshi Nogami, Satoshi Maruyama, Yasumasa Takii, Takashi Kawasaki, Kei-Ichi Homma, Hiroshi Izutsu, Keisuke Kodama, Jennifer E Ring, Alexei Protopopov, Stephen Lyle, Shujiro Okuda, Kohei Akazawa, Toshifumi Wakai
HER2-targeted therapy is considered effective for KRAS codon 12/13 wild-type, HER2-positive metastatic colorectal cancer (CRC). In general, HER2 status is determined by the use of immunohistochemistry (IHC) and fluorescence in situ hybridization (FISH). Comprehensive genomic sequencing (CGS) enables the detection of gene mutations and copy number alterations including KRAS mutation and HER2 amplification; however, little is known about the utility of CGS for detecting HER2-positive CRC. To assess its utility, we retrospectively investigated 201 patients with stage I-IV CRC...
February 21, 2017: Human Pathology
https://www.readbyqxmd.com/read/28231414/mir-135a-3p-as-a-promising-biomarker-and-nucleic-acid-therapeutic-agent-for-ovarian-cancer
#13
Satoshi Fukagawa, Kohei Miyata, Fusanori Yotsumoto, Chihiro Kiyoshima, Sung Ouk Nam, Haruchika Anan, Takahiro Katsuda, Daisuke Miyahara, Masaharu Murata, Hiroshi Yagi, Kyoko Shirota, Shin'ichiro Yasunaga, Kiyoko Kato, Shingo Miyamoto
Ovarian cancer is the most lethal gynecologic malignancy. Recently, several molecularly targeted anticancer agents have been developed for ovarian cancer; however, its prognosis has remained extremely poor. The development of molecularly targeted therapy, as well as companion diagnostics, is required to improve outcomes for patients with ovarian cancer. In this study, to identify microRNAs involved in the progression of ovarian cancer we analyzed serum microRNAs in patients with ovarian cancer using microRNA array and qRT-PCR and examined the anticancer properties of microRNA expression in ovarian cancer cells...
February 23, 2017: Cancer Science
https://www.readbyqxmd.com/read/28225722/efficacy-of-the-inverted-internal-limiting-membrane-flap-technique-with-vitrectomy-for-retinal-detachment-associated-with-myopic-macular-holes
#14
Ryo Baba, Yoshihiro Wakabayashi, Kazuhiko Umazume, Tomoaki Ishikawa, Hiromichi Yagi, Daisuke Muramatsu, Hiroshi Goto
PURPOSE: To evaluate the anatomical and functional outcome of the inverted internal limiting membrane (ILM) flap technique with vitrectomy for retinal detachment associated with macular hole (MHRD) in highly myopic eyes. METHODS: In this retrospective observational study, 21 eyes with MHRD that underwent vitrectomy with conventional ILM peeling (ILM-peeling group, n = 11) or the inverted ILM flap technique (ILM flap group, n = 10) combined with C3F8 tamponade were enrolled in this study...
March 2017: Retina
https://www.readbyqxmd.com/read/28210092/first-successful-perinatal-management-of-pregnancy-after-abo-incompatible-liver-transplantation
#15
Hisanobu Higashi, Hideaki Obara, Kei Miyakoshi, Masahiro Shinoda, Minoru Kitago, Naoki Shimojima, Yuta Abe, Taizo Hibi, Hiroshi Yagi, Kentaro Matsubara, Yohei Yamada, Osamu Itano, Ken Hoshino, Tatsuo Kuroda, Yuko Kitagawa
Many papers have reported on pregnancy and delivery after liver transplantation, but there have been no reports on pregnancy after ABO-incompatible liver transplantation. This paper reports the first successful pregnancy and delivery of a newborn after ABO-incompatible liver transplantation for fulminant hepatic failure. The patient was a 39-year-old female. She had an ABO-incompatible liver transplantation, donated from her husband, due to subacute fulminant hepatitis of unknown etiology. She was taking tacrolimus, methylprednisolone, and mizoribine orally for the maintenance of immunosuppression at the time of discharge...
January 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28207663/role-of-ethnicity-in-alignment-compensation-propensity-matched-analysis-of-differential-compensatory-mechanism-recruitment-patterns-for-sagittal-malalignment-in-288-asd-patients-from-japan-korea-and-united-states
#16
Bassel G Diebo, Isaac Gammal, Yoon Ha, Seung Hwan Yoon, Jae Won Chang, Byeongwoo Kim, Morio Matsumoto, Yu Yamato, Daisaku Takeuchi, Naobumi Hosogane, Mitsuru Yagi, Hiroshi Taneichi, Frank Schwab, Virginie Lafage, Christopher Ames
STUDY DESIGN: Retrospective review of adult spinal deformity patients in a multiethnic database. OBJECTIVE: To investigate the role of ethnicity on recruitment of compensatory mechanisms for sagittal spinal deformity. SUMMARY OF BACKGROUND DATA: While the impacts of age, sex, and pelvic morphology on the ability to compensate for sagittal malalignment have been investigated, the role of ethnicity in compensatory mechanism recruitment is poorly understood...
February 15, 2017: Spine
https://www.readbyqxmd.com/read/28133304/-a-case-of-metastatic-colorectal-cancer-with-her2-overexpression-amplification
#17
Akio Matsumoto, Yoshifumi Shimada, Ryoma Yagi, Kohei Miura, Yosuke Tajima, Takuma Okamura, Masato Nakano, Hitoshi Kameyama, Hitoshi Nogami, Satoshi Maruyama, Yasumasa Takii, Hiroshi Ichikawa, Jun Sakata, Takashi Kobayashi, Toshifumi Wakai
We report a case of panitumumab-resistant rectal cancer with HER2 gene amplification detected by CancerPlex®. A 51- year-old man was diagnosed with an obstructive rectal cancer having lung and adrenal metastases. He underwent the Hartmann 's operation, and KRAS mutations were not detected. After the surgery, 3 courses of CapeOx plus bevacizumab were administered as first-line chemotherapy; however, the lung and adrenal metastases progressed. Subsequently, 24 courses of IRIS/panitumumab was administered as second-line chemotherapy, and the metastases slowly progressed...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28133295/-a-systematic-analysis-of-oncogene-and-tumor-suppressor-genes-for-panitumumab-resistant-rectal-cancer-with-wild-ras-gene-a-case-report
#18
Yosuke Tajima, Yoshifumi Shimada, Ryoma Yagi, Takuma Okamura, Masato Nakano, Hitoshi Kameyama, Hitoshi Nogami, Satoshi Maruyama, Yasumasa Takii, Kohei Miura, Hiroshi Ichikawa, Masayuki Nagahashi, Jun Sakata, Takashi Kobayashi, Toshifumi Wakai
A 58-year-old man was admitted with the complaint of bloody stools. Colonoscopy and computed tomography revealed a rectal cancer with a liver metastasis and multiple lung metastases. After administering a regimen comprising 3 courses of XELOX plus bevacizumab chemotherapy, the sizes of the primary and metastatic lesions decreased remarkably. Abdominoperineal resection was performed for local control of the cancer; the specimen from the initial tumor was found to be KRAS wild type. After 14 courses of XELOX chemotherapy, brain metastases were detected...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28133170/-a-case-of-intestinal-diverticular-perforation-in-roux-en-y-reconstruction-after-laparoscopic-distal-gastrectomy
#19
Hideyuki Tanaka, Koichi Doi, Katsuhiro Ogawa, Taisuke Yagi, Naoki Umesaki, Nobuyuki Ozaki, Hiromitsu Hayashi, Yoshiaki Ikuta, Kenichi Ogata, Hiroshi Takamori
An 81-year-old woman who had undergone laparoscopic distal gastrectomy complained of abdominal pain 21 days after the operation.Blood tests showed a strong inflammatory reaction.Abdominal CT revealed a perforation in the small intestinal diverticula.Partial jejunectomy including the diverticulum was performed.The diverticular perforation was attributed to the presence of undigested food in the diverticulum.The patient had an uneventful postoperative course, and she was discharged on postoperative day 32.
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28133136/-a-case-of-metastatic-colon-cancer-dramatically-affected-by-anti-egfr-antibody-therapy
#20
Ryoma Yagi, Yoshifumi Shimada, Kohei Miura, Yosuke Tajima, Takuma Okamura, Masato Nakano, Hiroshi Ichikawa, Masayuki Nagahashi, Jun Sakata, Takashi Kobayashi, Hitoshi Kameyama, Toshifumi Wakai, Hitoshi Nogami, Satoshi Maruyama, Yasumasa Takii
RAS mutation is an established predictive biomarker of resistance to anti-epidermal growth factor receptor(EGFR)therapy in metastatic colorectal cancer. In addition, previous studies identified mutations in ERBB2, FGFR1, PDGFRA, BRAF, MAP2K1, PTEN, and PIK3CA as potential mechanisms of resistance to anti-EGFR therapy. Testing for these mutations might be necessary to determine eligibility for anti-EGFR therapy in patients with metastatic colorectal cancer. CancerPlex®is a nextgeneration sequencer for 413 cancer genes...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
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