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https://www.readbyqxmd.com/read/28445810/circulating-cadmium-concentration-and-risk-of-aortic-aneurysms-a-nested-case-control-study-within-the-malm%C3%A3-diet-and-cancer-cohort
#1
Björn Fagerberg, Yan Borné, Gerd Sallsten, J Gustav Smith, Stefan Acosta, Margaretha Persson, Olle Melander, Niklas Forsgard, Anders Gottsäter, Bo Hedblad, Lars Barregard, Gunnar Engström
BACKGROUND AND AIMS: Diet and smoking expose the general population to cadmium (Cd), which is a toxic metal that accumulates in the arterial wall. In experimental studies, Cd causes reductions in proliferation of smooth muscle cells and cellular synthesis of procollagen. The aim of this study was to examine whether blood Cd levels, a valid measure of Cd exposure, are associated with increased risk of abdominal aortic aneurysm (AAA). METHODS: All middle-aged men and women enrolled in the Malmö Diet and Cancer study (n = 30 447) were followed from the baseline examination in 1991-1996 through 2009...
April 8, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28445776/antimicrobial-resistance-in-the-bacteroides-fragilis-group-in-faecal-samples-from-patients-receiving-broad-spectrum-antibiotics
#2
Kia Cirkeline Møller Hansen, Simon A F Schwensen, Daniel Pilsgaard Henriksen, Ulrik Stenz Justesen, Thomas Vognbjerg Sydenham
Members of the Bacteroides fragilis group are opportunistic pathogens and cause severe infections including bacteraemia. As increased levels of antimicrobial resistance in B. fragilis group bacteria can be detected years after administration of specific antibiotics, monitoring antimicrobial susceptibility in the gut microbiota could be important. The objectives of this study were to 1) investigate the distribution of species and the occurrence of reduced antimicrobial susceptibility in the B. fragilis group from patients treated at departments with a high level of antibiotic use, 2) to determine the prevalence of the carbapenem resistance gene cfiA in B...
April 23, 2017: Anaerobe
https://www.readbyqxmd.com/read/28445495/pharmacokinetic-and-pharmacodynamic-modelling-after-subcutaneous-intravenous-and-buccal-administration-of-a-high-concentration-formulation-of-buprenorphine-in-conscious-cats
#3
Graeme M Doodnaught, Beatriz P Monteiro, Javier Benito, Daniel Edge, Francis Beaudry, Ludovic Pelligand, Paulo Steagall
BACKGROUND: The aim of this study was to describe the joint pharmacokinetic-pharmacodynamic model and evaluate thermal antinociception of a high-concentration formulation of buprenorphine (Simbadol™) in cats. METHODS: Six healthy cats (4.9 ± 0.7 kg) were included in a prospective, randomized, blinded, crossover study. Simbadol™ (1.8 mg mL-1) was administered by the subcutaneous (SC; 0.24 mg kg-1), intravenous (IV; 0.12 mg kg-1) or buccal (OTM; 0.12 mg kg-1) route of administration and thermal thresholds (TT) were compared with a saline group (SAL)...
2017: PloS One
https://www.readbyqxmd.com/read/28445423/anthocyanin-profiles-in-flowers-of-grape-hyacinth
#4
Qian Lou, Lin Wang, Hongli Liu, Yali Liu
Grape hyacinth (Muscari spp.) is a popular ornamental bulbous perennial famous for its blue flowers. To understand the chemical basis of the rich blue colors in this plant, anthocyanin profiles of six blue flowering grape hyacinths as well as one pink and one white cultivar were determined using high-performance liquid chromatography and mass spectrometry. Along with two known compounds, eight putative anthocyanins were identified in the tepals of grape hyacinth for the first time. The accumulation and distribution of anthocyanins in the plant showed significant cultivar and flower development specificity...
April 26, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28444908/micelles-of-the-chiral-biocompatible-surfactant-1r-2s-dodecyl-2-hydroxy-1-methyl-2-phenylethyl-dimethylammonium-bromide-dmeb-molecular-dynamics-and-fragmentation-patterns-in-gas-phase
#5
David Bongiorno, Serena Indelicato, Leopoldo Ceraulo, Ugo Perricone, Valentina Calabrese, Anna Maria Almerico, Vincenzo Turco Liveri, Marco Tutone
RATIONALE: The study of self-assembly process of surfactant molecules in gas phase is of actually interest for several theoretical and technological reasons related to their possible exploitation as drug carriers, protein shields and cleaning agents in gas phase. METHODS: Stability and fragmentation patterns of singly and multiply charged (either positively or negatively) aggregates of the surfactant (1R,2S)-dodecyl(2-hydroxy-1-methyl-2-phenylethyl) dimethyl ammonium bromide (DMEB) in gas phase have been studied by ion mobility mass spectrometry and tandem mass spectrometry...
April 26, 2017: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/28444480/model-based-biotechnological-potential-analysis-of-kluyveromyces-marxianus-central-metabolism
#6
A Pentjuss, E Stalidzans, J Liepins, A Kokina, J Martynova, P Zikmanis, I Mozga, R Scherbaka, H Hartman, M G Poolman, D A Fell, A Vigants
The non-conventional yeast Kluyveromyces marxianus is an emerging industrial producer for many biotechnological processes. Here, we show the application of a biomass-linked stoichiometric model of central metabolism that is experimentally validated, and mass and charge balanced for assessing the carbon conversion efficiency of wild type and modified K. marxianus. Pairs of substrates (lactose, glucose, inulin, xylose) and products (ethanol, acetate, lactate, glycerol, ethyl acetate, succinate, glutamate, phenylethanol and phenylalanine) are examined by various modelling and optimisation methods...
April 25, 2017: Journal of Industrial Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28444184/can-school-based-distribution-be-used-to-maintain-coverage-of-long-lasting-insecticide-treated-bed-nets-evidence-from-a-large-scale-programme-in-southern-tanzania
#7
Logan Stuck, Angelina Lutambi, Frank Chacky, Paul Schaettle, Karen Kramer, Renata Mandike, Rose Nathan, Joshua Yukich
Many sub-Saharan African countries have achieved substantial gains in insecticide treated bednet coverage since 2005. The Tanzania National Malaria Control Programme identified school-based net distribution as one potential 'keep-up' strategy for the purpose of maintaining long-lasting insecticidal net (LLIN) coverage after a nationwide mass campaign in 2011. The School Net Programme (SNP) was implemented in three regions of southern Tanzania and distributed one LLIN to each enrolled child attending schools in primary grades (standards) 1, 3, 5 and 7, and secondary grades (forms) 2 and 4 in 2013 and again with slightly modified eligibility criteria in 2014 and 2015...
April 22, 2017: Health Policy and Planning
https://www.readbyqxmd.com/read/28443941/knowledge-attitudes-and-perceptions-regarding-lymphatic-filariasis-study-on-systematic-noncompliance-with-mass-drug-administration
#8
Silvia Cabral, Cristine Bonfim, Rosalira Oliveira, Paula Oliveira, Terezinha Guimarães, Eduardo Brandão, Ana Maria Aguiar-Santos, Zulma Medeiros
The aim of this study was to investigate the epidemiological characteristics, antigenic profile, perceptions, attitudes and practices of individuals who have been systematically non-compliant in mass drug administration (MDA) campaigns targeting lymphatic filariasis, in the municipality of Olinda, State of Pernambuco, Northeastern Brazil. A pretested questionnaire was used to obtain information on socioenvironmental demographics, perceptions of lymphatic filariasis and MDA, and reasons for systematic noncompliance with treatment...
April 20, 2017: Revista do Instituto de Medicina Tropical de São Paulo
https://www.readbyqxmd.com/read/28443020/bgp-15-protects-against-oxaliplatin-induced-skeletal-myopathy-and-mitochondrial-reactive-oxygen-species-production-in-mice
#9
James C Sorensen, Aaron C Petersen, Cara A Timpani, Dean G Campelj, Jordan Cook, Adam J Trewin, Vanesa Stojanovska, Mathew Stewart, Alan Hayes, Emma Rybalka
Chemotherapy is a leading intervention against cancer. Albeit highly effective, chemotherapy has a multitude of deleterious side-effects including skeletal muscle wasting and fatigue, which considerably reduces patient quality of life and survivability. As such, a defense against chemotherapy-induced skeletal muscle dysfunction is required. Here we investigate the effects of oxaliplatin (OXA) treatment in mice on the skeletal muscle and mitochondria, and the capacity for the Poly ADP-ribose polymerase (PARP) inhibitor, BGP-15, to ameliorate any pathological side-effects induced by OXA...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28442499/absorption-distribution-metabolism-and-excretion-of-the-oral-prostaglandin-d2-receptor-2-dp2-antagonist-fevipiprant-qaw039-in-healthy-volunteers-and-in-vitro
#10
David Pearson, H Markus Weiss, Yi Jin, Jan Jaap van Lier, Veit J Erpenbeck, Ulrike Glaenzel, Peter End, Ralph Woessner, Fabian Eggimann, Gian Camenisch
Fevipiprant is a novel oral prostaglandin D2 receptor 2 (DP2; also known as CRTh2) antagonist, which is currently in development for the treatment of severe asthma and atopic dermatitis. We investigated the absorption, distribution, metabolism, and excretion properties of fevipiprant in healthy subjects after a single 200 mg oral dose of [(14)C]-radiolabeled fevipiprant. Fevipiprant and metabolites were analyzed by liquid chromatography coupled to tandem mass spectrometry and radioactivity measurements, and mechanistic in vitro studies were performed to investigate clearance pathways and covalent plasma protein binding...
April 25, 2017: Drug Metabolism and Disposition: the Biological Fate of Chemicals
https://www.readbyqxmd.com/read/28441538/real-time-observation-of-cascaded-electronic-relaxation-processes-in-p-fluorotoluene
#11
Qiaoli Hao, Xulan Deng, Jinyou Long, Yanmei Wang, Bumaliya Abulimiti, Bing Zhang
Ultrafast electronic relaxation processes following two photoexcitation of 400nm in p-Fluorotoluene (pFT) have been investigated utilizing time-resolved photoelectron imaging coupled with time-resolved mass spectroscopy. Cascaded electronic relaxation processes started from the electronically excited S2 state are directly imaged in real time and well characterized by two distinct time constants of ~85±10fs and 2.4±0.3ps. The rapid component corresponds to the lifetime of the initially excited S2 state, including the structure relaxation from the Franck-Condon region to the conical intersection of S2/S1 and the subsequent internal conversion to the highly excited S1 state...
April 19, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28441380/comparison-of-general-obesity-and-measures-of-body-fat-distribution-in-older-adults-in-relation-to-cancer-risk-meta-analysis-of-individual-participant-data-of-seven-prospective-cohorts-in-europe
#12
Heinz Freisling, Melina Arnold, Isabelle Soerjomataram, Mark George O'Doherty, José Manuel Ordóñez-Mena, Christina Bamia, Ellen Kampman, Michael Leitzmann, Isabelle Romieu, Frank Kee, Konstantinos Tsilidis, Anne Tjønneland, Antonia Trichopoulou, Paolo Boffetta, Vassiliki Benetou, H B As Bueno-de-Mesquita, José María Huerta, Hermann Brenner, Tom Wilsgaard, Mazda Jenab
BACKGROUND: We evaluated the associations of anthropometric indicators of general obesity (body mass index, BMI), an established risk factor of various cancer, and body fat distribution (waist circumference, WC; hip circumference, HC; and waist-to-hip ratio, WHR), which may better reflect metabolic complications of obesity, with total obesity-related and site-specific (colorectal and postmenopausal breast) cancer incidence. METHODS: This is a meta-analysis of seven prospective cohort studies participating in the CHANCES consortium including 18 668 men and 24 751 women with a mean age of 62 and 63 years, respectively...
April 25, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28440930/impacts-of-changing-ocean-circulation-on-the-distribution-of-marine-microplastic-litter
#13
Natalie Ac Welden, Amy L Lusher
Marine plastic pollution is currently a major scientific focus, with attention paid to its distribution and impacts within ecosystems. With recent estimates indicating that the mass of plastic released to the marine environment may reach 250 million metric tons by 2025, the effects of plastic on our oceans are set to increase. Distribution of microplastics, those plastics measuring less than 5 mm, are of increasing concern because they represent an increasing proportion of marine litter and are known to interact with species in a range of marine habitats...
May 2017: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/28440767/zinc-alpha-2-glycoprotein-is-overproduced-in-cushing-s-syndrome
#14
Xavier Escoté, Gloria B Aranda, Mireia Mora, Gregori Casals, Joaquim Enseñat, Oscar Vidal, Yaiza Esteban, Irene Halperin, Felicia A Hanzu
INTRODUCTION: Cushing syndrome (CS), an endogenous hypercortisolemic condition with increased cardiometabolic morbidity, leads to development of abdominal obesity, insulin resistance, diabetes and proatherogenic dyslipidemia. Zinc alpha-2 glycoprotein (ZAG) is a recently characterized lipolytic adipokine implicated in regulation of adipose tissue metabolism and fat distribution. In vitro and animal studies suggest that glucocorticoids interact with ZAG secretion and action. To assess the relationship between ZAG and glucocorticoids in a human model of hypercortisolism, circulating ZAG levels were tested in patients with CS and its counterpart controls...
January 2017: Endocrinol Diabetes Nutr
https://www.readbyqxmd.com/read/28440717/serum-carotenoid-interactions-in-premenopausal-women-reveal-%C3%AE-carotene-is-negatively-impacted-by-body-fat
#15
Emily Taylor Nuss, Ashley R Valentine, Zhumin Zhang, HuiChuan Jennifer Lai, Sherry A Tanumihardjo
Increasing body mass indices (BMIs) across the globe reflect pandemic shifts towards habitual positive energy imbalances. Excess body fat in individuals is often associated with high-energy and high-fat diets scanty in fresh produce. Carotenoids are fat-soluble pigments plentiful in many fruits and vegetables. They are well-known for provitamin A and antioxidant functions, but little research has been done related to carotenoid-body mass interactions. Serum carotenoids were analyzed relative to body fat to determine correlations between major serum carotenoids, retinol, BMI, fat mass, and lean mass...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28440641/thermochemical-investigations-of-hydrated-nickel-dication-complexes-by-threshold-collision-induced-dissociation-and-theory
#16
Rebecca A Coates, Peter B Armentrout
The experimental bond energies of Ni2+(H2O)x complexes, where x = 4 - 11, are determined by threshold collision-induced dissociation using a guided ion beam tandem mass spectrometer with an electrospray ionization source. The electrospray ionization source produces a distribution of Ni2+(H2O)x complexes, where an in-source fragmentation technique is employed to access the x = 4 - 6 complexes and control the population of excited isomers. The kinetic energy dependent cross sections are modeled to yield 0 K bond energies for sequential loss of neutral water molecules, which are converted to 298 K binding energies...
April 25, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28440636/probing-and-comparing-the-photobromination-and-photoiodination-of-dissolved-organic-matter-by-using-ultrahigh-resolution-mass-spectrometry
#17
Zhineng Hao, Yongguang Yin, Dong Cao, Jing-Fu Liu
Photochemical halogenation of dissolved organic matter (DOM) may represent an important abiotic source of natural organobromine compounds (OBCs) and natural organoiodine compounds (OICs) within surface waters. Here we report the significantly enhanced formation of OBCs and OICs by photohalogenating DOM in freshwater and seawater, as well as the noticeable difference in distribution and composition pattern of newly formed OBCs and OICs. By using the negative ion electrospray ionization coupled with Fourier transform ion cyclotron resonance mass spectrometry, numerous OBCs and OICs were identified during the photo halogenation processes in sunlit waters...
April 25, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28439748/duodenal-switch-is-superior-to-gastric-bypass-in-patients-with-super-obesity-when-evaluated-with-the-bariatric-analysis-and-reporting-outcome-system-baros
#18
Martin L Skogar, Magnus Sundbom
BACKGROUND: It is not clear which bariatric procedure that gives the best outcome for patients with super obesity (body mass index [BMI] > 50 kg/m(2)). This study aims to compare outcomes in patients with super obesity after Roux-en-Y gastric bypass (RYGB) and duodenal switch (BPD/DS) using the Bariatric Analysis and Reporting Outcome System (BAROS) and a local questionnaire for gastrointestinal symptoms. METHODS: A retrospective mail survey including 211 patients, 98 RYGB and 113 BPD/DS, with a mean follow-up time of 4 years for both groups...
April 24, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28439466/arrival-and-diversification-of-mabuyine-skinks-squamata-scincidae-in-the-neotropics-based-on-a-fossil-calibrated-timetree
#19
Anieli Guirro Pereira, Carlos G Schrago
BACKGROUND: The evolution of South American Mabuyinae skinks holds significant biogeographic interest because its sister lineage is distributed across the African continent and adjacent islands. Moreover, at least one insular species, Trachylepis atlantica, has independently reached the New World through transoceanic dispersal. To clarify the evolutionary history of both Neotropical lineages, this study aimed to infer an updated timescale using the largest species and gene sampling dataset ever assembled for this group...
2017: PeerJ
https://www.readbyqxmd.com/read/28438192/chryseobacterium-gleum-in-a-man-with-prostatectomy-in-senegal-a-case-report-and-review-of-the-literature
#20
O Arouna, F Deluca, M Camara, B Fall, B Fall, A Ba Diallo, J D Docquier, S Mboup
BACKGROUND: Here we report a rare case of a urinary tract infection due to Chryseobacterium gleum. This widely distributed Gram-negative bacillus is an uncommon human pathogen and is typically associated with health care settings. CASE PRESENTATION: We describe a case of urinary tract infection caused by Chryseobacterium gleum in a 68-year-old man of Wolof ethnicity (an ethnic group in Senegal, West Africa) who presented to our Department of Urology in a university teaching hospital (Hôpital Aristide Le Dantec) in Dakar, Senegal, 1 month after prostatectomy...
April 24, 2017: Journal of Medical Case Reports
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