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https://www.readbyqxmd.com/read/27915273/altered-mirna-expression-in-high-fat-diet-induced-prostate-cancer-progression
#1
Taketoshi Nara, Shintaro Narita, Huang Mingguo, Toshiaki Yoshioka, Atsushi Koizumi, Kazuyuki Numakura, Hiroshi Tsuruta, Atsushi Maeno, Mitsuru Saito, Takamitsu Inoue, Norihiko Tsuchiya, Shigeru Satoh, Tomonori Habuchi
Recent evidence suggests that a high-fat diet (HFD) plays an important role in prostate carcinogenesis; however, underlying mechanisms largely remain unknown. Here, we investigated microRNA (miRNA) expression changes in murine prostate cancer (PCa) xenografts using two different diets: HFD and control diet. We then assessed the roles and targets of altered miRNAs in HFD-induced PCa progression. We identified 38 up- and 21 downregulated miRNAs in xenografts under HFD conditions using the miRCURY LNA™ microRNA array...
December 2016: Carcinogenesis
https://www.readbyqxmd.com/read/27913737/postinfarction-ventricular-septal-rupture-closure-without-ventriculotomy
#2
Dai Kawashima, Satoru Maeba, Masahiro Saito, Minoru Ono
Postinfarction ventricular septal rupture is a life-threatening complication of acute myocardial infarction. Although some novel techniques of ventricular septal rupture closure have been introduced, they involve ventriculotomy, a procedure that can cause a degree of impairment of the incised ventricle. We describe a case in which we closed a ventricular septal rupture through the tricuspid valve, without ventriculotomy.
December 2, 2016: Asian Cardiovascular & Thoracic Annals
https://www.readbyqxmd.com/read/27911777/siderophore-based-microbial-adaptations-to-iron-scarcity-across-the-eastern-pacific-ocean
#3
Rene M Boiteau, Daniel R Mende, Nicholas J Hawco, Matthew R McIlvin, Jessica N Fitzsimmons, Mak A Saito, Peter N Sedwick, Edward F DeLong, Daniel J Repeta
Nearly all iron dissolved in the ocean is complexed by strong organic ligands of unknown composition. The effect of ligand composition on microbial iron acquisition is poorly understood, but amendment experiments using model ligands show they can facilitate or impede iron uptake depending on their identity. Here we show that siderophores, organic compounds synthesized by microbes to facilitate iron uptake, are a dynamic component of the marine ligand pool in the eastern tropical Pacific Ocean. Siderophore concentrations in iron-deficient waters averaged 9 pM, up to fivefold higher than in iron-rich coastal and nutrient-depleted oligotrophic waters, and were dominated by amphibactins, amphiphilic siderophores with cell membrane affinity...
December 1, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27911564/observation-of-collective-coupling-between-an-engineered-ensemble-of-macroscopic-artificial-atoms-and-a-superconducting-resonator
#4
Kosuke Kakuyanagi, Yuichiro Matsuzaki, Corentin Déprez, Hiraku Toida, Kouichi Semba, Hiroshi Yamaguchi, William J Munro, Shiro Saito
The hybridization of distinct quantum systems is now seen as an effective way to engineer the properties of an entire system leading to applications in quantum metamaterials, quantum simulation, and quantum metrology. Recent improvements in both fabrication techniques and qubit design have allowed the community to consider coupling large ensembles of artificial atoms, such as superconducting qubits, to a resonator. Here, we demonstrate the coherent coupling between a microwave resonator and a macroscopic ensemble composed of several thousand superconducting flux qubits, where we observe a large dispersive frequency shift in the spectrum of 250 MHz...
November 18, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/27911363/generation-of-induced-pluripotent-stem-cells-from-human-melanoma-tumor-infiltrating-lymphocytes
#5
Hidehito Saito, Kumiko Iwabuchi, Noemi Fusaki, Fumito Ito
Adoptive transfer of ex vivo expanded autologous tumor-infiltrating lymphocytes (TILs) can mediate durable and complete responses in significant subsets of patients with metastatic melanoma. Major obstacles of this approach are the reduced viability of transferred T cells, caused by telomere shortening, and the limited number of TILs obtained from patients. Less-differentiated T cells with long telomeres would be an ideal T cell subset for adoptive T cell therapy;however, generating large numbers of these less-differentiated T cells is problematic...
November 11, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27911225/successful-treatment-of-mixed-yolk-sac-tumor-and-mature-teratoma-in-the-spinal-cord-case-report
#6
Akitake Mukasa, Shunsuke Yanagisawa, Kuniaki Saito, Shota Tanaka, Keisuke Takai, Junji Shibahara, Masachika Ikegami, Yusuke Nakao, Katsushi Takeshita, Masao Matsutani, Nobuhito Saito
Primary spinal germ cell tumors are rare, and spinal nongerminomatous germ cell tumors represent an even rarer subset for which no standard therapy has been established. The authors report the case of a 24-year-old woman with multifocal primary spinal germ cell tumors scattered from T-12 to L-5 that consisted of yolk sac tumor and mature teratoma. After diagnostic partial resection, the patient was treated with 30 Gy of craniospinal irradiation and 30 Gy of local spinal irradiation, followed by 8 courses of chemotherapy based on ifosfamide, cisplatin, and etoposide (ICE)...
December 2, 2016: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/27909278/-surgical-treatment-of-right-atrial-malignant-tumor-thrombus-under-deep-hypothermia-with-intermittent-circulatory-arrest-report-of-two-cases
#7
Akira Fujita, Toshiro Kobayashi, Hideharu Hironaka, Mitsutaka Jinbou, Naomasa Uesugi, Satoshi Saito, Tsuyoshi Takahashi, Hidenori Gohra
Right atrial tumor thrombus is rare in patients with visceral malignant tumors and can cause right heart failure or sudden death. We present 2 cases of right atrial tumor thrombus treated under deep hypothermic intermittent circulatory arrest (DHICA). A 45-year-old man with right heart failure was diagnosed with right renal cancer extending to the right atrium. Computed tomography revealed no metastasis. He underwent right nephrectomy and tumor thrombus resection under DHICA. He was discharged on postoperative day 11 in good clinical course...
December 2016: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/27909274/-three-mitral-valve-operations-in-a-patient-with-trousseau-syndrome-and-nonbacterial-thrombotic-endocarditis-caused-by-ovarian-cancer
#8
Masahito Saito, Naoki Asano, Kazunori Ota, Kazuho Niimi, Koyu Tanaka, Shigeyoshi Gon, Hiroshi Takano
A 52-year-old woman was admitted to our hospital for acute right hemi-paresis, left homonymous hemianopia, and fever. Magnetic resonance imaging of the brain showed multiple cerebral infarctions and transesophageal echocardiography (TEE) revealed a vegetation on the posterior leaflet of her mitral valve. Mitral valve repair was performed under a diagnosis of infective endocarditis (IE). Further multiple cerebral infarctions occurred on the 11th postoperative day, resulting in left hemiplegia and dysarthria...
December 2016: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/27909135/new-radiological-parameters-for-the-assessment-of-atlantoaxial-instability-in-children-with-down-syndrome-the-normal-values-and-the-risk-of-spinal-cord-injury
#9
N Nakamura, Y Inaba, Y Aota, M Oba, J Machida, N Aida, K Kurosawa, T Saito
AIMS: To determine the normal values and usefulness of the C1/4 space available for spinal cord (SAC) ratio and C1 inclination angle, which are new radiological parameters for assessing atlantoaxial instability in children with Down syndrome. PATIENTS AND METHODS: We recruited 272 children with Down syndrome (including 14 who underwent surgical treatment), and 141 children in the control group. All were aged between two and 11 years. The C1/4 SAC ratio, C1 inclination angle, atlas-dens interval (ADI), and SAC were measured in those with Down syndrome, and the C1/4 SAC ratio and C1 inclination angle were measured in the control group...
December 2016: Bone & Joint Journal
https://www.readbyqxmd.com/read/27908980/phase-2-study-of-eribulin-in-patients-with-previously-treated-advanced-or-metastatic-soft-tissue-sarcoma
#10
Akira Kawai, Nobuhito Araki, Yoichi Naito, Toshifumi Ozaki, Hideshi Sugiura, Yasuo Yazawa, Hideo Morioka, Akihiko Matsumine, Kenichi Saito, Shun Asami, Kazuo Isu
OBJECTIVE: Eribulin, a microtubule dynamics inhibitor, is approved for the treatment of patients with breast cancer and soft tissue sarcoma. We investigated the efficacy and safety of eribulin in Japanese patients with soft tissue sarcoma. METHODS: This open-label, multicenter, nonrandomized, Phase 2 study enrolled Japanese patients with measurable, advanced/metastatic soft tissue sarcoma of high/intermediate grade and ≥1 prior chemotherapy for advanced disease...
December 1, 2016: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/27908728/activation-of-evi1-transcription-by-the-lef1-%C3%AE-catenin-complex-with-p53-alteration-in-myeloid-blast-crisis-of-chronic-myeloid-leukemia
#11
Nawin Manachai, Yusuke Saito, Shingo Nakahata, Avinash Govind Bahirvani, Tomomi Osato, Kazuhiro Morishita
The presence of a BCR-ABL1 fusion gene is necessary for the pathogenesis of chronic myeloid leukemia (CML) through t(9;22)(q34;q11) translocation. Imatinib, an ABL tyrosine kinase inhibitor, is dramatically effective in CML patients; however, 30% of CML patients will need further treatment due to progression of CML to blastic crisis (BC). Aberrant high expression of ecotropic viral integration site 1 (EVI1) is frequently observed in CML during myeloid-BC as a potent driver with a CML stem cell signature; however, the precise molecular mechanism of EVI1 transcriptional regulation during CML progression is poorly defined...
November 28, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27908710/prognosis-of-oral-squamous-cell-carcinoma-patients-with-level-iv-v-metastasis-an-observational-study
#12
Takumi Hasegawa, Yasuyuki Shibuya, Daisuke Takeda, Eiji Iwata, Izumi Saito, Yasumasa Kakei, Akiko Sakakibara, Masaya Akashi, Tsutomu Minamikawa, Takahide Komori
PURPOSE: The objectives of this study were to retrospectively describe the characteristics and outcomes of patients with oral squamous cell carcinoma (OSCC) with level IV/V metastases, and to evaluate the multivariate relationships among potential risk factors for metastasis and prognosis. MATERIALS AND METHODS: We evaluated 291 patients (178 men and 113 women; mean age, 65.9 ± 13.5 years). Clinicopathological data, time of development of level IV/V metastases, and clinical course were investigated...
October 29, 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/27906702/diagnostic-accuracy-of-intraluminal-blood-speckle-intensity-on-intravascular-ultrasound-for-physiological-assessment-of-coronary-artery-stenosis
#13
Yuichi Saito, Hideki Kitahara, Takashi Nakayama, Yoshihide Fujimoto, Yoshio Kobayashi
OBJECTIVES: The difference in intraluminal intensity of blood speckle (IBS) on integrated backscatter intravascular ultrasound (IVUS) across the coronary stenosis was reportedly correlated with fractional flow reserve (FFR) in the left descending coronary artery. The aim of this study was to investigate the novel physiological assessment using IVUS in all coronary arteries. PATIENTS AND METHODS: Fifty-four patients with 57 coronary lesions underwent both FFR and IVUS...
November 30, 2016: Coronary Artery Disease
https://www.readbyqxmd.com/read/27905258/hla-mismatched-haploidentical-transplantation-using-low-dose-anti-thymocyte-globulin-atg-thymoglobulin
#14
Shinichi Kako, Yu Akahoshi, Naonori Harada, Hirofumi Nakano, Kazuaki Kameda, Tomotaka Ugai, Ryoko Yamasaki, Hidenori Wada, Yuko Ishihara, Koji Kawamura, Kana Sakamoto, Miki Sato, Masahiro Ashizawa, Kiriko Terasako-Saito, Shun-Ichi Kimura, Misato Kikuchi, Hideki Nakasone, Rie Yamazaki, Junya Kanda, Yoshinobu Kanda
Objectives To clarify optimal strategies for human leukocyte antigen (HLA)-mismatched haploidentical hematopoietic stem cell transplantation (HSCT). Methods Twelve patients who underwent HSCT from a haploidentical related donor using low-dose thymoglobulin were analyzed retrospectively. Thymoglobulin was added to conditioning regimens at 2.5 mg/kg/day for 2 days (days -4 and -3). Prophylaxis against graft-versus-host disease (GVHD) was performed with cyclosporine and methotrexate. Results The median age of the patients was 33 years...
December 1, 2016: Hematology (Amsterdam, Netherlands)
https://www.readbyqxmd.com/read/27905160/improving-the-solubility-of-artificial-ligands-of-streptavidin-to-enable-more-practical-reversible-switching-of-protein-localization-in-cells
#15
Ryo Tachibana, Takuya Terai, Gaelle Boncompain, Shigeru Sugiyama, Nae Saito, Franck Perez, Yasuteru Urano
Chemical inducers that can control target protein localization in living cells are powerful tools to investigate dynamic biological systems. We recently reported the "retention using selective hook" (RUSH) system for reversible localization change of proteins of interest by addition/washout of small molecules called artificial ligands of streptavidin (ALiS). However, the utility of previously developed ALiS is restricted by limited solubility in water. Here, we overcome this problem by X-ray crystal structure-guided design of a more soluble ALiS derivative (ALiS-3), which retains sufficient streptavidin-binding affinity for use in the RUSH system...
November 30, 2016: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/27904823/expression-of-gp91phox-and-p22phox-catalytic-subunits-of-nadph-oxidase-on-microglia-in-nasu-hakola-disease-brains
#16
Jun-Ichi Satoh, Yoshihiro Kino, Motoaki Yanaizu, Youhei Tosaki, Kenji Sakai, Tusyoshi Ishida, Yuko Saito
The superoxide-producing nicotinamide adenine dinucleotide phosphate (NADPH) oxidase complex of phagocytes (phox) plays a key role in production of reactive oxygen species (ROS) by microglia. The catalytic subunits of the NADPH oxidase are composed of p22phox and gp91phox. Nasu-Hakola disease (NHD) is a rare autosomal recessive disorder caused by a loss-of-function mutation of either TYROBP (DAP12) or TREM2. Pathologically, the brains of NHD patients exhibit extensive demyelination designated leukoencephalopathy, astrogliosis, accumulation of axonal spheroids, and remarkable activation of microglia predominantly in the white matter of frontal and temporal lobes...
November 2016: Intractable & Rare Diseases Research
https://www.readbyqxmd.com/read/27904015/deletion-of-conserved-sequences-in-ig-dmr-at-dlk1-gtl2-locus-suggests-their-involvement-in-expression-of-paternally-expressed-genes-in-mice
#17
Takeshi Saito, Satoshi Hara, Moe Tamano, Hiroshi Asahara, Shuji Takada
Expression regulation of the Dlk1-Dio3 imprinted domain by the intergenic differentially methylated region (IG-DMR) is essential for normal embryonic development in mammals. In this study, we investigated conserved IG-DMR genomic sequences in eutherians to elucidate their role in genomic imprinting of the Dlk1-Dio3 domain. Using a comparative genomics approach, we identified three highly conserved sequences in IG-DMR. To elucidate the functions of these sequences in vivo, we generated mutant mice lacking each of the identified highly conserved sequences using the CRISPR/Cas9 system...
December 1, 2016: Journal of Reproduction and Development
https://www.readbyqxmd.com/read/27903277/sequence-diversity-of-dengue-virus-type-2-in-brain-and-thymus-of-infected-interferon-receptor-ko-mice-implications-for-dengue-virulence
#18
Priya Dhole, Emi E Nakayama, Akatsuki Saito, Kriengsak Limkittikul, Supranee Phanthanawiboon, Tatsuo Shioda, Takeshi Kurosu
BACKGROUND: We previously reported that a clinical isolate of dengue virus (DENV) is capable of causing acute-phase systemic infection in mice harboring knockouts of the genes encoding type-I and -II interferon IFN receptors (IFN-α/β/γR KO mice); in contrast, other virulent DENV isolates exhibited slow disease progression in this mice, yielding lethal infection around 20 days post-infection (p.i.). In the present study, we sought to clarify the dynamics of slow disease progression by examining disease progression of a type-2 DENV clinical isolate (DV2P04/08) in mice...
November 30, 2016: Virology Journal
https://www.readbyqxmd.com/read/27901527/lysine-linkage-in-abasic-site-binding-ligand-thiazole-orange-conjugates-for-improved-binding-affinity-to-orphan-nucleobases-in-dna-rna-hybrids
#19
Yusuke Sato, Hiroki Saito, Daisuke Aoki, Norio Teramae, Seiichi Nishizawa
Introduction of lysine linkage in the conjugate between abasic site-binding ligands and thiazole orange significantly improved the binding affinity for target orphan adenine or uracil nucleobase in DNA/RNA hybrids.
November 30, 2016: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/27900579/aryl-hydrocarbon-receptor-induced-intratumoral-aromatase-in-breast-cancer
#20
Ryoko Saito, Yasuhiro Miki, Shuko Hata, Takanori Ishida, Takashi Suzuki, Noriaki Ohuchi, Hironobu Sasano
PURPOSE: Aryl hydrocarbon receptor (AhR) inhibits estrogen receptor (ER) pathway, which may suppress estrogen-dependent cell proliferation. However, the correlation between AhR stimulation and intratumoral estrogen synthesis, especially through aromatase, has not been reported to date. In the present study, we examined this correlation in breast cancer cells. METHODS: We examined AhR and aromatase immunoreactivity in 29 patients with invasive ductal carcinoma. We performed in vitro studies using three breast carcinoma cell lines, MCF-7, T47D, and MDA-MB-231...
November 30, 2016: Breast Cancer Research and Treatment
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