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https://www.readbyqxmd.com/read/28088359/argentation-chromatography-coupled-to-ultrahigh-resolution-mass-spectrometry-for-the-separation-of-a-heavy-crude-oil
#1
Lilla Molnárné Guricza, Wolfgang Schrader
Simplification of highly complex mixtures such as crude oil by using chromatographic methods makes it possible to get more detailed information about the composition of the analyte. Separation by argentation chromatography can be achieved based on the interaction of different strength between the silver ions (Ag(+)) immobilized through a spacer on the silica gel surface and the π-bonds of the analytes. Heavy crude oils contain compounds with a high number of heteroatoms (N, O, S) and a high degree of unsaturation thus making them the perfect analyte for argentation chromatography...
December 30, 2016: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28086951/sodium-glucose-transporter-2-sglt2-inhibition-with-empagliflozin-improves-cardiac-diastolic-function-in-a-female-rodent-model-of-diabetes
#2
Javad Habibi, Annayya R Aroor, James R Sowers, Guanghong Jia, Melvin R Hayden, Mona Garro, Brady Barron, Eric Mayoux, R Scott Rector, Adam Whaley-Connell, Vincent G DeMarco
Obese and diabetic individuals are at increased risk for impairments in diastolic relaxation and heart failure with preserved ejection fraction. The impairments in diastolic relaxation are especially pronounced in obese and diabetic women and predict future cardiovascular disease (CVD) events in this population. Recent clinical data suggest sodium glucose transporter-2 (SGLT2) inhibition reduces CVD events in diabetic individuals, but the mechanisms of this CVD protection are unknown. To determine whether targeting SGLT2 improves diastolic relaxation, we utilized empagliflozin (EMPA) in female db/db mice...
January 13, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28076941/double-balloon-endoscopy-in-overt-and-occult-small-bowel-bleeding-results-complications-and-correlation-with-prior-videocapsule-endoscopy-in-a-tertiary-referral-center
#3
Carlijn Hermans, Arnold Stronkhorst, Annemarie Tjhie-Wensing, Jan Kamphuis, Bas van Balkom, Rob Dahlmans, Lennard Gilissen
Background/Aims: Videocapsule endoscopy (VCE) and double-balloon endoscopy (DBE) allow deep exploration in patients with suspected small bowel pathology. VCE is often performed as an initial small bowel examination to explore whether an intervention by DBE is indicated and to determine insertion route. The study aim was to evaluate the correlation between DBE and VCE in patients with obscure or overt bleeding or anemia, as well as intervention frequency, and complications. Methods: Retrospective observational study...
January 12, 2017: Clinical Endoscopy
https://www.readbyqxmd.com/read/28040503/are-interferential-electrical-stimulation-and-diaphragmatic-breathing-exercises-beneficial-in-children-with-bladder-and-bowel-dysfunction
#4
Vesna D Zivkovic, Ivona Stankovic, Lidija Dimitrijevic, Mirjana Kocic, Hristina Colovic, Marina Vlajkovic, Andjelka Slavkovic, Milica Lazovic
OBJECTIVE: To evaluate the effects of interferential current (IC) stimulation and diaphragmatic breathing exercises (DBE) in children with bladder and bowel dysfunction. PATIENTS AND METHODS: Seventy-nine children with dysfunctional voiding and chronic constipation who were failures of primary care interventions were included in the prospective clinical study. All the children were checked for their medical history regarding LUTS and bowel habits. Physical examination including abdominal and anorectal digital examination were performed...
December 28, 2016: Urology
https://www.readbyqxmd.com/read/28019036/utility-of-newly-developed-short-type-double-balloon-endoscopy-for-endoscopic-retrograde-cholangiography-in-postoperative-patients
#5
Masaaki Shimatani, Mitsuo Tokuhara, Kota Kato, Sachi Miyamoto, Masataka Masuda, Masayuki Sakao, Norimasa Fukata, Hideaki Miyoshi, Tsukasa Ikeura, Makoto Takaoka, Kazuichi Okazaki
BACKGROUND AND AIMS: The utility of conventional short-type DBE (C-short DBE) for pancreatobiliary disease in patients with postoperative anatomy had been widely acknowledged and accepted. However, some technical difficulties yet remained. In an attempt to solve these problems, the new short-type DBE (N-short DBE) was uniquely designed for therapeutic endoscopic retrograde cholangiography (ERC) in postoperative patients. The aim of this study was to evaluate the usefulness of N-short DBE for ERC in postoperative patients...
December 26, 2016: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/27994606/lineage-specific-evolutionary-histories-and-regulation-of-major-starch-metabolism-genes-during-banana-ripening
#6
Cyril Jourda, Céline Cardi, Olivier Gibert, Andrès Giraldo Toro, Julien Ricci, Didier Mbéguié-A-Mbéguié, Nabila Yahiaoui
Starch is the most widespread and abundant storage carbohydrate in plants. It is also a major feature of cultivated bananas as it accumulates to large amounts during banana fruit development before almost complete conversion to soluble sugars during ripening. Little is known about the structure of major gene families involved in banana starch metabolism and their evolution compared to other species. To identify genes involved in banana starch metabolism and investigate their evolutionary history, we analyzed six gene families playing a crucial role in plant starch biosynthesis and degradation: the ADP-glucose pyrophosphorylases (AGPases), starch synthases (SS), starch branching enzymes (SBE), debranching enzymes (DBE), α-amylases (AMY) and β-amylases (BAM)...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27908511/double-balloon-enteroscopy
#7
REVIEW
Andrea May
Since the introduction of double-balloon enteroscopy 15 years ago, flexible enteroscopy has become an established method in the diagnostic and therapeutic work-up of small bowel disorders. With appropriate patient selection, diagnostic and therapeutic yields of 70% to 85% can be expected. The complication rates with diagnostic and therapeutic DBE are estimated at approximately 1% and 3% to 4%, respectively. Appropriate patient selection and device selection, as well as skill, are the key issues for successful enteroscopy...
January 2017: Gastrointestinal Endoscopy Clinics of North America
https://www.readbyqxmd.com/read/27833391/systematic-review-safety-of-balloon-assisted-enteroscopy-in-crohn-s-disease
#8
Ahilan Arulanandan, Parambir S Dulai, Siddharth Singh, William J Sandborn, Denise Kalmaz
AIM: To determine the overall and comparative risk of procedure related perforation of balloon assisted enteroscopy (BAE) in Crohn's disease (CD). METHODS: Systematic review (PROSPERO #CRD42015016381) of studies reporting on CD patients undergoing BAE. Seventy-three studies reporting on 1812 patients undergoing 2340 BAEs were included. Primary outcome of interest was the overall and comparative risk of procedure related perforation of diagnostic BAE in CD. Secondary outcomes of interest were risk of procedure related perforation of diagnostic double balloon enteroscopy (DBE), risk of procedure related perforation of therapeutic BAE, efficacy of stricture dilation, and clinical utility of endoscopically assessing small bowel disease activity...
October 28, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27802018/self-assembled-and-cross-linked-animal-and-plant-based-polysaccharides-chitosan-cellulose-composites-and-their-anion-uptake-properties
#9
Inimfon A Udoetok, Lee D Wilson, John V Headley
Self-assembled and cross-linked chitosan/cellulose glutaraldehyde composite materials (CGC) were prepared with enhanced surface area and variable morphology. FTIR, CHN, and (13)C solid state NMR studies provided support for the cross-linking reaction between the amine groups of chitosan and glutaraldehyde; whereas, XRD and TGA studies provided evidence of cellulose-chitosan interactions for the composites. SEM, equilibrium swelling, and nitrogen adsorption studies corroborate the enhanced surface area and variable morphology of the cross-linked biopolymers...
December 7, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27785314/safety-of-deep-enteroscopy-and-capsule-endoscopy-in-lvad-patients-case-report-and-literature-review
#10
Wilson Tak-Yu Kwong, Michelle Pearlman, Denise Kalmaz
Patients with a left ventricular assist device (LVAD) have increased risk of gastrointestinal (GI) bleeding. They are prone to develop angiodysplasia of the small intestine, and have a higher risk of bleeding as these patients are all required to be on permanent therapeutic anticoagulation. Here we report a case of a critically ill 55-year-old male on pressors and inotropes with an LVAD, who successfully underwent an antegrade double balloon enteroscopy (DBE).
December 2015: Gastroenterology Research
https://www.readbyqxmd.com/read/27782391/emerging-and-legacy-flame-retardants-in-uk-indoor-air-and-dust-evidence-for-replacement-of-pbdes-by-emerging-flame-retardants
#11
Fang Tao, Mohamed Abou-Elwafa Abdallah, Stuart Harrad
Concentrations of 27 emerging (EFRs) and legacy flame retardants (LFRs) were measured in samples of indoor air (n = 35) and indoor dust (n = 77) from UK homes and offices. All target compounds were detected in indoor air and dust samples. Relatively volatile EFRs (e.g., tetrabromoethylcyclohexane-DBE-DBCH) were more frequently detected in indoor air (detection frequencies >60%), while less volatile EFRs (e.g., tetrabromobisphenolA-bis(2,3-dibromopropyl ether (TBBPA-BDBPE) and decabromodiphenyl ethane (DBDPE)) were predominant in dust...
December 6, 2016: Environmental Science & Technology
https://www.readbyqxmd.com/read/27768060/imaging-cleared-embryonic-and-postnatal-hearts-at-single-cell-resolution
#12
Wasay M Shaikh Qureshi, Lianjie Miao, David Shieh, Jingjing Li, Yangyang Lu, Saiyang Hu, Margarida Barroso, Joseph Mazurkiewicz, Mingfu Wu
Single clonal tracing and analysis at the whole-heart level can determine cardiac progenitor cell behavior and differentiation during cardiac development, and allow for the study of the cellular and molecular basis of normal and abnormal cardiac morphogenesis. Recent emerging technologies of retrospective single clonal analyses make the study of cardiac morphogenesis at single cell resolution feasible. However, tissue opacity and light scattering of the heart as imaging depth is increased hinder whole-heart imaging at single cell resolution...
October 7, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27759639/double-balloon-enteroscopy-in-small-bowel-diseases-eight-years-single-center-experience-in-china
#13
Wen-Guo Chen, Guo-Dong Shan, Hong Zhang, Ming Yang, Lin L, Min Yue, Guang-Wu Chen, Qing Gu, Hua-Tuo Zhu, Guo-Qiang Xu, Li-Hua Chen
The aim of the study was to evaluate the diagnostic and therapeutic value of double-balloon entoroscopy (DBE) in small bowel diseases (SBDs) in China.A retrospective review of 674 consecutive patients who underwent DBE between January 2007 and November 2015 was conducted. Patients were divided into 3 groups by age, young group (<45 years), middle-aged group (45-65 years), and elderly group (>65 years). Data were collected with regard to demographics, clinical, endoscopic findings, complications, diagnostic yield, and management...
October 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27752914/chemical-diversity-and-complexity-of-scotch-whisky-as-revealed-by-high-resolution-mass-spectrometry
#14
Will Kew, Ian Goodall, David Clarke, Dušan Uhrín
Scotch Whisky is an important product, both culturally and economically. Chemically, Scotch Whisky is a complex mixture, which comprises thousands of compounds, the nature of which are largely unknown. Here, we present a thorough overview of the chemistry of Scotch Whisky as observed by Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS). Eighty-five whiskies, representing the majority of Scotch Whisky produced and sold, were analyzed by untargeted high-resolution mass spectrometry. Thousands of chemical formulae were assigned for each sample based on parts-per-billion mass accuracy of FT-ICR MS spectra...
January 2017: Journal of the American Society for Mass Spectrometry
https://www.readbyqxmd.com/read/27743389/mesalazine-induced-enteritis-causing-refractory-diarrhea
#15
LETTER
Ichiro Otani, Shiro Oka, Shinji Tanaka
No abstract text is available yet for this article.
October 15, 2016: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/27718381/molecular-characterization-of-lake-sediment-weon-by-fourier-transform-ion-cyclotron-resonance-mass-spectrometry-and-its-environmental-implications
#16
Li Zhang, Shengrui Wang, Yisheng Xu, Quan Shi, Haichao Zhao, Bin Jiang, Jiachun Yang
The compositional properties of water-extractable organic nitrogen (WEON) affect its behavior in lake ecosystems. This work is the first comprehensive study using Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) for the characterization of the molecular composition of WEON in lake sediment. In sediments of Erhai Lake in China, this study found complex WEON species, with N-containing compounds in the northern, central, and southern regions contributing 34.47%, 42.44%, and 40.6%, respectively, of total compounds...
September 28, 2016: Water Research
https://www.readbyqxmd.com/read/27670601/diagnostic-and-therapeutic-endoscopic-retrograde-cholangiography-using-a-short-type-double-balloon-endoscope-in-patients-with-altered-gastrointestinal-anatomy-a-multicenter-prospective-study-in-japan
#17
Masaaki Shimatani, Hisashi Hatanaka, Hirofumi Kogure, Koichiro Tsutsumi, Hiroki Kawashima, Keiji Hanada, Tomoki Matsuda, Tomoki Fujita, Makoto Takaoka, Tomonori Yano, Atsuo Yamada, Hironari Kato, Kazuichi Okazaki, Hironori Yamamoto, Hideki Ishikawa, Kentaro Sugano
OBJECTIVES: To evaluate the utility and safety of a short-type double-balloon endoscope (DBE) in the treatment of biliary disease in patients with surgically altered gastrointestinal (GI) anatomy. METHODS: This study was conducted as a multicenter, single-arm, prospective trial at five tertiary academic care centers and three community-based hospitals in Japan. Consecutive patients with biliary disease with altered GI anatomy were prospectively included in this study...
December 2016: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/27664154/use-of-an-over-the-scope-clipping-device-for-closure-of-a-jejuno-sigmoid-fistula-a-case-report-with-long-term-follow-up
#18
Yuichi Sagara, Satoshi Shinozaki, Tomonori Yano, Hirotsugu Sakamoto, Yoshikazu Hayashi, Alan Kawarai Lefor, Hironori Yamamoto
The over-the-scope clip (OTSC) system is a new technology that enables closure of fistulae which cannot be closed with a conventional clip. A 57-year-old woman had long-term hypoalbuminemia, edema and general malaise. Peroral double-balloon endoscopy (DBE) showed a jejuno-sigmoid fistula and blind loop syndrome of the jejunum and ileum, because ingested food bypassed the ileum through the fistula. She was advised to undergo surgical closure of the fistula, but she refused the procedure. For 7 years following DBE, repeat courses of antibiotics were required to treat bacterial overgrowth due to blind loop syndrome...
December 2016: Clinical Journal of Gastroenterology
https://www.readbyqxmd.com/read/27652171/double-balloon-endoscopy-was-effective-in-diagnosing-small-intestinal-duplication-a-case-report
#19
Yuji Nadatani, Toshio Watanabe, Takashi Sugawa, Shinpei Eguchi, Sunao Shimada, Koji Otani, Hirokazu Yamagami, Tetsuya Tanigawa, Masatsugu Shiba, Kazunari Tominaga, Yasuhiro Fujiwara, Tetsuo Arakawa
INTRODUCTION: Ileal duplications are encountered infrequently in adults, because symptoms including abdominal pain, intussusception, hemorrhage, and perforation usually present in early childhood. In this report, we present an adult case of ileal duplication that was revealed by double-balloon endoscopy (DBE). CASE DESCRIPTION: A 73-year-old Japanese man presented with anemia and melena. Anal DBE detected the narrow opening of an extra lumen in the ileum about 100 cm proximal to the ileocecal valve...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27650462/minimally-invasive-treatment-of-difficult-bleeding-lesions-of-the-small-bowel
#20
Mario A Masrur, Despoina Daskalaki, Andrea Vannucchi, Siddharth N Vannemreddy, Luis F Gonzalez-Ciccarelli, Ross Rbrown, C Pier
BACKGROUND: Bleeding lesions of the small bowel are often difficult to identify due to the obscure symptomatology. Localizing these lesions requires specific techniques. The Double-balloon enteroscopy (DBE) could be used to precisely localize and mark lesions, so that a minimally invasive surgical treatment could be performed. METHODS: Twenty robot-assisted small bowel procedures are presented using a combination of DBE for localization and robotic resection. RESULTS: There were 10 jejunal resections and 10 ileal resections...
October 2016: Minerva Chirurgica
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