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https://www.readbyqxmd.com/read/28731303/lead-ii-binding-in-natural-and-artificial-proteins
#1
Virginia Cangelosi, Leela Ruckthong, Vincent L Pecoraro
This article describes recent attempts to understand the biological chemistry of lead using a synthetic biology approach. Lead binds to a variety of different biomolecules ranging from enzymes to regulatory and signaling proteins to bone matrix. We have focused on the interactions of this element in thiolate-rich sites that are found in metalloregulatory proteins such as Pbr, Znt, and CadC and in enzymes such as δ-aminolevulinic acid dehydratase (ALAD). In these proteins, Pb(II) is often found as a homoleptic and hemidirectic Pb(II)(SR)3- complex...
April 10, 2017: Metal Ions in Life Sciences
https://www.readbyqxmd.com/read/28728988/survey-of-hip-fractures-in-japan-recent-trends-in-prevalence-and-treatment
#2
Hiroshi Hagino, Naoto Endo, Atsushi Harada, Jun Iwamoto, Tasuku Mashiba, Satoshi Mori, Seiji Ohtori, Akinori Sakai, Junichi Takada, Tetsuji Yamamoto
BACKGROUND: A nationwide survey of hip fractures by the Japanese Orthopaedic Association (JOA) from 1998 to 2008 found a drastic increase in incidence. The aims of this study were to elucidate the status of hip fractures from 2009 to 2014 and to survey the causes for delayed surgery. METHODS: A tally of all hip fractures that occurred in patients from 2009 to 2014 was conducted in hospitals authorized by the JOA or in clinics with inpatient facilities of the Japanese Clinical Orthopaedic Association (JCOA)...
July 17, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28728936/cell-free-pipeline-for-discovery-of-thermotolerant-xylanases-and-endo-1-4-%C3%AE-glucanases
#3
Dejan Gagoski, Zhenyu Shi, Lars Keld Nielsen, Claudia E Vickers, Stephen Mahler, Robert Speight, Wayne A Johnston, Kirill Alexandrov
The rapid expansion in the number of sequenced genomes and metagenomes provides an exceptional resource for mining of the enzymes with biotechnologically relevant properties. However, the majority of protein production and analysis methods are not sufficiently cost-efficient and scalable to experimentally verify the results of computational genomic mining. Here, we present a pipeline based on Leishmania tarentolae cell-free system that was used to characterise 30 putative thermostable endo-1,4-β-glucanases and xylanases identified in public genomic databases...
July 17, 2017: Journal of Biotechnology
https://www.readbyqxmd.com/read/28728891/impact-of-adjuvant-chemotherapy-on-survival-in-patients-with-intrahepatic-cholangiocarcinoma-a-multi-institutional-analysis
#4
Bradley N Reames, Fabio Bagante, Aslam Ejaz, Gaya Spolverato, Andrea Ruzzenente, Matthew Weiss, Sorin Alexandrescu, Hugo P Marques, Luca Aldrighetti, Shishir K Maithel, Carlo Pulitano, Todd W Bauer, Feng Shen, George A Poultsides, Oliver Soubrane, Guillaume Martel, Bas G Koerkamp, Alfredo Guglielmi, Endo Itaru, Timothy M Pawlik
BACKGROUND: The benefit of adjuvant chemotherapy for resected intrahepatic cholangiocarcinoma (ICC) is unclear. The aim of the current study was to investigate the impact of adjuvant chemotherapy on survival among patients undergoing resection of ICC using a multi-institutional database. METHODS: 1154 ICC patients undergoing curative-intent hepatectomy between 1990 and 2015 were identified from 14 institutions. Cox proportional hazard modeling was used to determine the impact of adjuvant chemotherapy on overall survival (OS)...
July 17, 2017: HPB: the Official Journal of the International Hepato Pancreato Biliary Association
https://www.readbyqxmd.com/read/28727836/the-disc-damage-likelihood-scale-diagnostic-accuracy-and-correlations-with-cup-to-disc-ratio-structural-tests-and-standard-automated-perimetry
#5
Andrea C Kara-José, Luiz Alberto S Melo, Bruno L B Esporcatte, Angelica T N H Endo, Mauro Toledo Leite, Ivan Maynart Tavares
Our objective was to compare the diagnostic accuracies of and to determine the correlations between the disc damage likelihood scale (DDLS) and anatomical and functional tests used for glaucoma detection. A total of 54 healthy subjects (54 eyes) and 47 primary open-angle glaucoma patients (47 eyes) were included in this cross-sectional observational study. DDLS scores and cup-to-disc (C/D) ratios were evaluated. Subjects underwent standard automated perimetry (SAP), optic disc and retinal nerve fiber layer (RNFL) imaging with time and spectral-domain optical coherence tomography (TD and SD-OCT), Heidelberg Retina Tomograph (HRT II), and scanning laser polarimetry (GDx-VCC)...
2017: PloS One
https://www.readbyqxmd.com/read/28726165/long-term-outcomes-of-laparoscopic-versus-open-splenectomy-for-immune-thrombocytopenia
#6
Kazuhiro Tada, Masayuki Ohta, Kunihiro Saga, Hiroomi Takayama, Teijiro Hirashita, Yuichi Endo, Hiroki Uchida, Yukio Iwashita, Masafumi Inomata
PURPOSE: Splenectomy is the standard therapy for medically refractory immune thrombocytopenia (ITP). Laparoscopic splenectomy (LS) has gained wide acceptance; however, the long-term outcomes of LS versus open splenectomy (OS) for patients with ITP remain unclear. METHODS: We analyzed, retrospectively, 32 patients who underwent splenectomy, as LS in 22 and OS in 10, for refractory ITP at our institute. Data were evaluated based on the American Society of Hematology 2011 evidence-based practice guidelines for ITP...
July 19, 2017: Surgery Today
https://www.readbyqxmd.com/read/28725170/helicobacter-pylori-infection-status-had-no-influence-on-upper-gastrointestinal-symptoms-a-cross-sectional-analysis-of-3-005-japanese-subjects-without-upper-gastrointestinal-lesions-undergoing-medical-health-checkups
#7
Tomomi Yoshioka, Eri Takeshita, Yasuhisa Sakata, Megumi Hara, Kayo Akutagawa, Natsuko Sakata, Hiroyoshi Endo, Takashi Ohyama, Keiji Matsunaga, Yuichiro Tanaka, Shinpei Shirai, Yoichiro Ito, Nanae Tsuruoka, Ryuichi Iwakiri, Motoyasu Kusano, Kazuma Fujimoto
BACKGROUND: This study aimed to evaluate the influence of Helicobacter pylori infection and its eradication on the upper gastrointestinal symptoms of relatively healthy Japanese subjects. METHODS: A total of 3,005 subjects (male/female: 1,549/1,456) undergoing medical health checkups were enrolled in the present study, at five hospitals in Saga, Japan, from January to December 2013. They had no significant findings following upper gastrointestinal endoscopy. All subjects completed a questionnaire that addressed a frequency scale for symptoms of gastroesophageal reflux disease...
2017: Esophagus: Official Journal of the Japan Esophageal Society
https://www.readbyqxmd.com/read/28723215/discrimination-cascade-enabled-selective-detection-of-single-nucleotide-mutation
#8
Lidan Li, Xianjin Xiao, Jingyang Ge, Manli Han, Xu Zhou, Lei Wang, Xin Su, Changyuan Yu
Owing to the significance of single nucleotide mutation (SNM) for personalized medicine, the detection of SNM with high accuracy has recently attracted considerable interest. Here, we present a kinetic method for selective detection of SNM based on a discrimination cascade constructed by combining the toehold strand displacement (TSD) and endonuclease IV (Endo IV) catalyzed hydrolysis. The single-nucleotide specificity of the two DNA reactions allows highly selective detection of all types of single nucleotide changes (including single-nucleotide insertion and deletion), achieving a high discrimination factor with a median of 491 which is comparable with recently reported methods...
March 24, 2017: ACS Sensors
https://www.readbyqxmd.com/read/28720702/identification-of-a-vesicular-atp-release-inhibitor-for-the-treatment-of-neuropathic-and-inflammatory-pain
#9
Yuri Kato, Miki Hiasa, Reiko Ichikawa, Nao Hasuzawa, Atsushi Kadowaki, Ken Iwatsuki, Kazuhiro Shima, Yasuo Endo, Yoshiro Kitahara, Tsuyoshi Inoue, Masatoshi Nomura, Hiroshi Omote, Yoshinori Moriyama, Takaaki Miyaji
Despite the high incidence of neuropathic and inflammatory pain worldwide, effective drugs with few side effects are currently unavailable for the treatment of chronic pain. Recently, researchers have proposed that inhibitors of purinergic chemical transmission, which plays a key role in the pathological pain response, may allow for targeted treatment of pathological neuropathic and inflammatory pain. However, such therapeutic analgesic agents have yet to be developed. In the present study, we demonstrated that clodronate, a first-generation bisphosphonate with comparatively fewer side effects than traditional treatments, significantly attenuates neuropathic and inflammatory pain unrelated to bone abnormalities via inhibition of vesicular nucleotide transporter (VNUT), a key molecule for the initiation of purinergic chemical transmission...
July 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28720663/direct-interaction-of-the-golgi-v-atpase-a-subunit-isoform-with-pi-4-p-drives-localization-of-golgi-v-atpases-in-yeast
#10
Subhrajit Banerjee, Patricia M Kane
Luminal pH and phosphoinositide content are fundamental features of organelle identity. V-ATPases drive organelle acidification in all eukaryotes, and membrane-bound a-subunit isoforms of the V-ATPase are implicated in organelle-specific targeting and regulation. Earlier work demonstrated that the endo-lysosomal lipid PI(3,5)P2 activates V-ATPases containing the vacuolar a-subunit isoform in S. cerevisiae Here we demonstrate that PI4P, the predominant Golgi PI species, directly interacts with the cytosolic amino terminal (NT) domain of the yeast Golgi V-ATPase a-isoform, Stv1...
July 18, 2017: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/28720149/heparanase-promotes-neuroinflammatory-response-during-subarachnoid-hemorrhage-in-rats
#11
Benjarat Changyaleket, Zhao Zhong Chong, Randal O Dull, Danop Nanegrungsunk, Haoliang Xu
BACKGROUND: Heparanase, a mammalian endo-β-D-glucoronidase that specifically degrades heparan sulfate, has been implicated in inflammation and ischemic stroke. However, the role of heparanase in neuroinflammatory response in subarachnoid hemorrhage (SAH) has not yet been investigated. This study was designed to examine the association between heparanase expression and neuroinflammation during subarachnoid hemorrhage. METHODS: Rats were subjected to SAH by endovascular perforation, and the expression of heparanase was determined by Western blot analysis and immunofluorescence in the ipsilateral brain cortex at 24 h post-SAH...
July 18, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28719932/endoscopic-removal-of-migrated-colonic-self-expandable-metallic-stent-using-a-sliding-tube
#12
Rintaro Moroi, Yoichi Kakuta, Katsuya Endo, Masatake Kuroha, Shoichi Kayaba, Yoshitaka Kinouchi, Tooru Shimosegawa
No abstract text is available yet for this article.
July 18, 2017: Endoscopy
https://www.readbyqxmd.com/read/28718364/evaluation-of-epigenetic-inactivation-of-vascular-endothelial-growth-factor-receptors-in-head-and-neck-squamous-cell-carcinoma
#13
Yuki Misawa, Kiyoshi Misawa, Hideya Kawasaki, Atsushi Imai, Daiki Mochizuki, Ryuji Ishikawa, Shiori Endo, Masato Mima, Takeharu Kanazawa, Toshihide Iwashita, Hiroyuki Mineta
The aim of this study was to determine the methylation status of the genes encoding the vascular endothelial growth factor receptors and to evaluate the usefulness of VEGFR methylation as a prognostic indicator in head and neck squamous cell carcinoma. VEGFR messenger RNA expression and promoter methylation were examined in a panel of cell lines via quantitative reverse transcription and methylation-specific polymerase chain reaction, respectively. Promoter methylation was compared with clinical characteristics in 128 head and neck squamous cell carcinoma samples...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28714955/erratum-acetate-mediated-novel-survival-strategy-against-drought-in-plants
#14
Jong-Myong Kim, Taiko Kim To, Akihiro Matsui, Keitaro Tanoi, Natsuko I Kobayashi, Fumio Matsuda, Yoshiki Habu, Daisuke Ogawa, Takuya Sakamoto, Sachihiro Matsunaga, Khurram Bashir, Sultana Rasheed, Marina Ando, Hiroko Takeda, Kanako Kawaura, Miyako Kusano, Atsushi Fukushima, Endo Takaho A, Takashi Kuromori, Junko Ishida, Taeko Morosawa, Maho Tanaka, Chieko Torii, Yumiko Takebayashi, Hitoshi Sakakibara, Yasunari Ogihara, Kazuki Saito, Kazuo Shinozaki, Alessandra Devoto, Motoaki Seki
This corrects the article DOI: 10.1038/nplants.2017.97.
July 17, 2017: Nature Plants
https://www.readbyqxmd.com/read/28713762/comparison-of-the-shaping-ability-of-waveone-reciprocating-files-with-or-without-glide-path-in-simulated-curved-s-shaped-root-canals
#15
Ayca Yilmaz, Enver Sedat Kucukay, Murat Istektepe, Selen Nihal Sisli, Handan Ersev, Isil Karagoz-Kucukay
OBJECTIVES: The aim was to compare the shaping ability of WaveOne reciprocating files with or without glide path in simulated curved S-shaped root canals. MATERIALS AND METHODS: Forty ISO #15, 0.02 taper, clear resin Endo Training Bloc-S blocks were studied. The simulated curved S-shaped canals were dyed using ink, preinstrumentation images were scanned, and resin blocks were prepared and divided into Group A: PathFile and WaveOne and Group B: WaveOne. All canals were postoperatively scanned...
June 2017: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/28713159/co-delivery-of-docetaxel-and-silibinin-using-ph-sensitive-micelles-improves-therapy-of-metastatic-breast-cancer
#16
Xin-Yue Dong, Tian-Qun Lang, Qi Yin, Peng-Cheng Zhang, Ya-Ping Li
Breast cancer is the most vicious killer for women, and tumor metastasis is one of the leading causes of breast cancer therapy failure. In this study, a new pH-sensitive polymer (polyethylene glycol-block-poly[(1,4-butanediol)-diacrylate-β-N,N-diisopropylethylenediamine], BDP) was synthesized. Based on BDP, docetaxel/silibinin co-delivery micelles (DSMs) was constructed. DSM had a well-defined spherical shape under the transmission electron microscope with average hydrodynamic diameter of 85.3±0.4 nm, and were stable in the bloodstream but could dissociate to release the chemotherapeutic agents in the low pH environment of the endo/lysosomes in the tumor cells...
July 17, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28712927/role-of-hepatic-annexin-a6-in-fatty-acid-induced-lipid-droplet-formation
#17
Rose Cairns, Anna Alvarez-Guaita, Inés Martínez-Saludes, Sundeep J Wason, Jacky Hanh, Shilpa R Nagarajan, Elham Hosseini-Beheshti, Katia Monastyrskaya, Andrew J Hoy, Christa Buechler, Carlos Enrich, Carles Rentero, Thomas Grewal
Annexin A6 (AnxA6) has been implicated in the regulation of endo-/exocytic pathways, cholesterol transport, and the formation of multifactorial signaling complexes in many different cell types. More recently, AnxA6 has also been linked to triglyceride storage in adipocytes. Here we investigated the potential role of AnxA6 in fatty acid (FA) - induced lipid droplet (LD) formation in hepatocytes. AnxA6 was associated with LD from rat liver and HuH7 hepatocytes. In oleic acid (OA) -loaded HuH7 cells, substantial amounts of AnxA6 bound to LD in a Ca(2+)-independent manner...
July 13, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28712635/efficacy-of-xp-endo-finisher-in-the-removal-of-triple-antibiotic-paste-from-immature-root-canals
#18
Dilek Turkaydin, Erhan Demir, Fatima Betul Basturk, Hesna Sazak Övecoglu
INTRODUCTION: The aim of this study was to evaluate and compare the effectiveness of the XP-Endo Finisher (FKG Dentaire, La Chaux-de-Fonds, Switzerland) with passive ultrasonic irrigation (PUI) and needle irrigation in the removal of triple antibiotic paste (TAP) from the straight immature root canals of extracted teeth. METHODS: Thirty-four freshly extracted single-rooted teeth were used. All canals were prepared up to the ProTaper F5 file (Dentsply Maillefer, Ballaigues, Switzerland)...
July 13, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28712115/expression-of-interferon-regulatory-factor-7-correlates-with-the-expression-of-epstein-barr-virus-latent-membrane-protein-1-and-cervical-lymph-node-metastasis-in-nasopharyngeal-cancer
#19
Satoru Kondo, Kazuhira Endo, Naohiro Wakisaka, Mitsuharu Aga, Makoto Kano, Noriko Seishima, Tomoko Imoto, Eiji Kobayashi, Makiko Moriyama-Kita, Yosuke Nakanishi, Shigeyuki Murono, Joseph S Pagano, Tomokazu Yoshizaki
Interferon regulatory factor 7 (IRF7) has oncogenic properties in several malignancies such as Epstein-Barr virus (EBV)-associated lymphoma. However, there is no evidence whether IRF7 is associated with the oncogenesis of nasopharyngeal cancer (NPC), the pathogenesis of which is closely associated with EBV. Herein, we report that expression of IRF7 was increased in normal nasopharyngeal cells that expressed the EBV principal oncoprotein, latent membrane protein 1 (LMP1). In addition, IRF7 was mainly expressed in the nucleus in both normal nasopharyngeal cells and nasopharyngeal cancer cells that expresses LMP1...
July 16, 2017: Pathology International
https://www.readbyqxmd.com/read/28711648/alteration-of-pdgfr%C3%AE-akt-mtor-pathway-signaling-in-fibrosarcomatous-transformation-of-dermatofibrosarcoma-protuberans
#20
Yuka Hiraki-Hotokebuchi, Yuichi Yamada, Kenichi Kohashi, Hidetaka Yamamoto, Makoto Endo, Nokitaka Setsu, Kuma Yuki, Takamichi Ito, Yukihide Iwamoto, Masutaka Furue, Yoshinao Oda
Dermatofibrosarcoma protuberans (DFSP) is a cutaneous mesenchymal tumor of intermediate malignancy and fibroblastic/myofibroblastic differentiation. Fibrosarcomatous (FS) component is a high-grade component of DFSP. The detailed oncogenic difference between DFSP and FS components is not clear. We thus investigated the Akt-mTOR pathway in both components. We used 65 tumor samples obtained from 65 patients. The phosphorylation of Akt-mTOR pathway proteins (Akt, mTOR, 4EBP1, and S6RP) and PDGFRα/β was assessed by immunohistochemical staining, the results of which were confirmed by western blotting...
July 12, 2017: Human Pathology
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