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https://www.readbyqxmd.com/read/28222489/characterization-of-a-novel-signal-transducer-element-intrinsic-to-class-iiia-b-adenylate-cyclases-and-guanylate-cyclases
#1
Miriam Ziegler, Jens Bassler, Stephanie Beltz, Anita Schultz, Andrei N Lupas, Joachim E Schultz
Adenylate cyclases (ACs) are signalling proteins that produce the second messenger cAMP. Class III ACs comprises four groups (class IIIa-d); of these, class IIIa and IIIb ACs have been identified in bacteria and eukaryotes. Many class IIIa ACs are anchored to membranes via hexahelical domains. In eukaryotic ACs, membrane anchors are well conserved, suggesting that this region possesses important functional characteristics that are as yet unknown. To address this question, we replaced the hexahelical membrane anchor of the mycobacterial AC Rv1625c by the hexahelical quorum-sensing receptor from Legionella, LqsS...
February 21, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28222383/simultaneous-biogas-upgrading-and-centrate-treatment-in-an-outdoors-pilot-scale-high-rate-algal-pond
#2
Esther Posadas, David Marín, Saúl Blanco, Raquel Lebrero, Raúl Muñoz
The bioconversion of biogas to biomethane coupled to centrate treatment was evaluated in an outdoors pilot scale high rate algal pond interconnected to an external CO2-H2S absorption column (AC) via settled broth recirculation. CO2-removal efficiencies ranged from 50 to 95% depending on the alkalinity of the cultivation broth and environmental conditions, while a complete H2S removal was achieved regardless of the operational conditions. A maximum CH4 concentration of 94% with a limited O2 and N2 stripping was recorded in the upgraded biogas at recycling liquid/biogas ratios in the AC of 1 and 2...
February 11, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28219635/direct-oral-anticoagulant-or-warfarin-related-major-bleeding-characteristics-reversal-strategies-and-outcomes-from-a-multi-center-observational-study
#3
Yan Xu, Sam Schulman, Dar Dowlatshahi, Anne M Holbrook, Christopher S Simpson, Lois E Shepherd, Philip S Wells, Antonio Giulivi, Tara Gomes, Muhammad Mamdani, Wayne Khuu, Eliot Frymire, Ana P Johnson
BACKGROUND: Direct oral anticoagulants (DOACs) have expanded the armamentarium for antithrombotic therapy. While DOAC-related major bleeds were associated with favourable outcomes compared to warfarin in clinical trials, warfarin was reversed in <40% of cases, raising concerns about the generalizability of this finding. METHODS: Consecutive patients ≥66 years presenting to five tertiary care hospitals across three cities in Ontario, Canada with diagnoses that included hemorrhage from October 2010 to March 2015...
February 17, 2017: Chest
https://www.readbyqxmd.com/read/28219485/acute-antipsychotic-treatment-of-children-and-adolescents-with-schizophrenia-spectrum-disorders-a-systematic-review-and-network-meta-analysis
#4
REVIEW
Anne Katrine Pagsberg, Simon Tarp, Dorte Glintborg, Anne Dorte Stenstrøm, Anders Fink-Jensen, Christoph Ulrich Correll, Robin Christensen
OBJECTIVE: To determine the comparative efficacy and safety of antipsychotics for youth with early-onset schizophrenia using network meta-analytic methods combining direct and indirect trial data. METHOD: The authors systematically searched MEDLINE, the Cochrane Library, and clinicaltrials.gov and selected randomized controlled trials allocating youth with schizophrenia spectrum disorders to a (non-clozapine) antipsychotic versus placebo or another antipsychotic...
March 2017: Journal of the American Academy of Child and Adolescent Psychiatry
https://www.readbyqxmd.com/read/28219152/-mendelian-randomization-analysis-of-the-relationship-between-obesity-and-dna-methylation
#5
Y Gao, B Q Wang, W J Gao, W H Cao, C Q Yu, J Lyu, S F Wang, Z C Pang, L M Cong, H Wang, X P Wu, L M Liang, L M Li
Objective: To explore the association between DNA methylation and body mass index (BMI) using Mendelian randomization analysis. Methods: A total of 469 participants were selected from the Chinese National Twin Registry in 2013, who were living in Shandong, Jiangsu, Zhejiang, and Sichuan provinces, and at least 18 years of age. A questionnaire survey and physical examination were conducted to collect demographic, clinical, and behavioral information. Peripheral blood cells were collected to detect genotype and methylation status...
February 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/28218678/adsorptive-desulfurization-of-model-gasoline-by-using-different-zn-sources-exchanged-nay-zeolites
#6
Jingwei Rui, Fei Liu, Rijie Wang, Yanfei Lu, Xiaoxia Yang
A series of Zn-modified NaY zeolites were prepared by the liquid-phase ion-exchange method with different Zn sources, including Zn(NO₃)₂, Zn(Ac)₂ and ZnSO₄. The samples were tested as adsorbents for removing an organic sulfur compound from a model gasoline fuel containing 1000 ppmw sulfur. Zn(Ac)₂-Y exhibited the best performance for the desulfurization of gasoline at ambient conditions. Combined with the adsorbents' characterization results, the higher adsorption capacity of Zn(Ac)₂-Y is associated with a higher ion-exchange degree...
February 17, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28218550/for-more-events-and-to-book-online-please-visit-www-rsm-ac-uk-diary
#7
(no author information available yet)
No abstract text is available yet for this article.
February 2017: Journal of the Royal Society of Medicine
https://www.readbyqxmd.com/read/28217401/presence-of-arachidonoyl-carnitine-is-associated-with-adverse-cardiometabolic-responses-in-hypertensive-patients-treated-with-atenolol
#8
Liming Weng, Yan Gong, Jeffrey Culver, Stephen J Gardell, Christopher Petucci, Alison M Morse, Reginald F Frye, Stephen T Turner, Arlene Chapman, Eric Boerwinkle, John Gums, Amber L Beitelshees, Peggy R Borum, Julie A Johnson, Timothy J Garrett, Lauren M McIntyre, Rhonda M Cooper-DeHoff
INTRODUCTION: Atenolol, a commonly prescribed β blocker for hypertension, is also associated with adverse cardiometabolic effects such as hyperglycemia and dyslipidemia. Knowledge of the mechanistic underpinnings of these adverse effects of atenolol is incomplete. OBJECTIVE: We sought to identify biomarkers associated with risk for these untoward effects of atenolol. We measured baseline blood serum levels of acylcarnitines (ACs) that are involved in a host of different metabolic pathways, to establish associations with adverse cardiometabolic responses after atenolol treatment...
October 2016: Metabolomics: Open Access
https://www.readbyqxmd.com/read/28216389/mastery-of-pmdi-technique-asthma-control-and-quality-of-life-of-children-with-asthma-a-randomized-controlled-study-comparing-two-inhaler-technique-training-approaches
#9
Wesam G Ammari, Nussaibah Al-Hyari, Nathir Obeidat, Mona Khater, Amal Sabouba, Mark Sanders
OBJECTIVE: Verbal counselling (VC) is the clinical standard for training patients on correct inhaler use. Patients fail to recall their VC with time. Ethical approval was obtained to compare the pressurized metered dose inhaler (pMDI) VC with Trainhaler (TH), a novel pMDI inhalation flow and technique training device, in children with asthma. METHODS: At visit 1, 7-17 year-old children with a pMDI hand-lung coordination problem including a fast peak inhalation flow (PIF) through pMDI >60 L/min were randomized into either VC group that received verbal pMDI training; or into TH group that were trained on- and given TH to practice at home...
February 16, 2017: Pulmonary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28216330/-223-ra-dichloride-spectrometric-characterization-searching-for-the-presence-of-long-lived-isotopes-with-radiological-protection-implications
#10
J Sánchez-Jiménez, A López-Montes, L Núñez-Martínez, A Villa-Abaunza, L M Fraile, V Sánchez-Tembleque, J M Udías
(223)Ra-dichloride was approved with the commercial name of Xofigo in 2014 for treatment of metastatic castration-resistant prostate cancer. (223)Ra is obtained by neutron irradiation of (226)Ra yielding (227)Ac, which decays to (227)Th and (223)Fr, both decaying to (223)Ra. Since (223)Ra is predominantly (95.3%) an alpha emitter with a 11.42days long half-life, the radiopharmaceutical, its remnants, the patient, and waste material can be managed and disposed with low radiation protection requirements. (227)Ac is a long-lived (T1/2=21...
February 16, 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28216252/calcification-of-the-splenic-iliac-and-breast-arteries-and-risk-of-all-cause-and-cardiovascular-mortality
#11
Eva J E Hendriks, Joline W J Beulens, Pim A de Jong, Yvonne T van der Schouw, Wei-Ning Sun, C Michael Wright, Michael H Criqui, Matthew A Allison, Joachim H Ix
BACKGROUND AND AIMS: CVD risks associated with coronary artery calcification (CAC) and aortic calcification (AC) are well known, but less is known about other calcified arteries. We aimed to assess the associations of arterial calcification in the breast, splenic, and internal and external iliac arteries with CVD risk factors and mortality. METHODS: We conducted a case-cohort study nested in a cohort of 5196 individuals who self-referred or were referred by a health care provider for whole body computed tomography (CT), including a random subcohort (n = 395) and total and CVD mortality cases (n = 298 and n = 90), who died during a median follow-up of 9...
January 30, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28216123/ablation-of-the-auditory-cortex-results-in-changes-in-the-expression-of-neurotransmission-related-mrnas-in-the-cochlea
#12
Verónica Lamas, José M Juiz, Miguel A Merchán
The auditory cortex (AC) dynamically regulates responses of the Organ of Corti to sound through descending connections to both the medial (MOC) and lateral (LOC) olivocochlear efferent systems. We have recently provided evidence that AC has a reinforcement role in the responses to sound of the auditory brainstem nuclei. In a molecular level, we have shown that descending inputs from AC are needed to regulate the expression of molecules involved in outer hair cell (OHC) electromotility control, such as prestin and the α10 nicotinic acetylcholine receptor (nAchR)...
February 16, 2017: Hearing Research
https://www.readbyqxmd.com/read/28216094/fusion-of-flagellin-2-with-bivalent-white-spot-syndrome-virus-vaccine-increases-survival-in-freshwater-shrimp
#13
Hansam Cho, Na Hye Park, Yuyeon Jang, Yong-Dae Gwon, Yeondong Cho, Yoon-Ki Heo, Ki-Hoon Park, Hee-Jung Lee, Tae Jin Choi, Young Bong Kim
Despite large economic losses attributable to white spot syndrome virus (WSSV), an infectious pathogen of penaeid shrimp and other crustaceans worldwide, no efficient vaccines or antiviral agents to control the virus are available at present. Here, we designed and constructed baculovirus-based vaccines delivering genes encoding the WSSV envelope proteins, VP28 and VP19. To enhance the immunogenicity of the baculovirus-based vaccine, we fused a Salmonella typhimurium flagellin 2 (FL2) gene with VP28 or VP19 gene...
February 16, 2017: Journal of Invertebrate Pathology
https://www.readbyqxmd.com/read/28215095/ph-dependence-of-photoinduced-electron-transfer-with-ru-tap-3-2
#14
Ludovic Troian-Gautier, Epiphanie Mugeniwabagara, Luca Fusaro, Cécile Moucheron, Andrée Kirsch-De Mesmaeker, Michel Luhmer
The quenching of the excited state of [Ru(TAP)3](2+) (TAP = 1,4,5,8-tetraazaphenanthrene) by guanosine-5'-monophosphate (GMP), N-acetyltyrosine (N-Ac-Tyr), and hydroquinone (H2Q) has been studied in aqueous solution over a wide range of pH values including, for the first time, strongly acidic media. This quenching by electron transfer was examined by steady-state (1)H photochemically induced dynamic nuclear polarization (photo-CIDNP) as well as by more conventional techniques, among which are pulsed laser-induced transient absorption and emission experiments...
February 20, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28215003/improved-electromagnetic-tracking-for-catheter-path-reconstruction-with-application-in-high-dose-rate-brachytherapy
#15
Elodie Lugez, Hossein Sadjadi, Chandra P Joshi, Selim G Akl, Gabor Fichtinger
PURPOSE: Electromagnetic (EM) catheter tracking has recently been introduced in order to enable prompt and uncomplicated reconstruction of catheter paths in various clinical interventions. However, EM tracking is prone to measurement errors which can compromise the outcome of the procedure. Minimizing catheter tracking errors is therefore paramount to improve the path reconstruction accuracy. METHODS: An extended Kalman filter (EKF) was employed to combine the nonlinear kinematic model of an EM sensor inside the catheter, with both its position and orientation measurements...
February 18, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28214900/mir-21-regulates-tnf-%C3%AE-induced-cd40-expression-via-the-sirt1-nf-%C3%AE%C2%BAb-pathway-in-renal-inner-medullary-collecting-duct-cells
#16
Qinqin Lin, Yuanwen Geng, Meng Zhao, Shuaishuai Lin, Qing Zhu, Zhenjun Tian
BACKGROUND/AIMS: Recent studies have indicated that microRNA-21 (miR-21) is involved in the inflammatory response in relation to renal disease. Sirtuin1 (SIRT1) exerts renoprotective properties by counteracting inflammation. The activation of CD40 triggers inflammation that participates in renal inflammation and injury. The relationship between miR-21, SIRT1 and CD40, however, remains elusive. METHODS: Immunohistochemistry, small-interfering RNA (siRNA) transfection, quantitative real-time PCR and western blotting were applied to assess the morphological, functional and molecular mechanisms in primary cultured renal inner medullary collecting duct (IMCD) cells...
January 18, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28214607/real-time-liver-uptake-and-biodistribution-of-magnetic-nanoparticles-determined-by-ac-biosusceptometry
#17
Caio C Quini, André G Próspero, Marcos F F Calabresi, Gustavo M Moretto, Nicholas Zufelato, Sunil Krishnan, Diana R Pina, Ricardo B Oliveira, Oswaldo Baffa, Andris F Bakuzis, Jose R A Miranda
We describe the development of a joint in vivo/ex vivo protocol to monitor magnetic nanoparticles in animal models. Alternating current biosusceptometry (ACB) enables the assessment of magnetic nanoparticle accumulation, followed by quantitative analysis of concentrations in organs of interest. We present a study of real-time liver accumulation, followed by the assessment of sequential biodistribution using the same technique. For quantification, we validated our results by comparing all of the data with electron spin resonance (ESR)...
February 15, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28214204/detection-of-occult-endocervical-glandular-dysplasia-in-cervical-conization-specimens-for-squamous-lesions
#18
F Sopracordevole, N Clemente, L Alessandrini, J Di Giuseppe, F Cigolot, M Buttignol, A Ciavattini, V Canzonieri
The aim of this work was to evaluate the incidence of occult cervical glandular intraepithelial neoplasia (CGIN) and adenocarcinoma of the cervix (AC) in women treated with CO2-laser conization for cervical intraepithelial neoplasia (CIN) or squamocellular cervical cancer (SCC). The medical records of all women with a histological diagnosis of squamous lesions of the uterine cervix (persistent CIN1, CIN2, CIN3 and SCC) who were subsequently treated with CO2-laser conization at our institution, during the period from January 1991 to December 2014, were analyzed in a retrospective case series...
January 12, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28214014/controlling-the-digital-ulcerative-disease-in-systemic-sclerosis-is-associated-with-improved-hand-function
#19
Luc Mouthon, Patrick H Carpentier, Catherine Lok, Pierre Clerson, Virginie Gressin, Eric Hachulla, Alice Bérezné, Elisabeth Diot, Aurélie Khau Van Kien, Patrick Jego, Christian Agard, Anne-Bénédicte Duval-Modeste, Agnès Sparsa, Eve Puzenat, Marie-Aleth Richard
OBJECTIVES: Ischemic digital ulcers (DU) represent a major complication of systemic sclerosis (SSc). We investigated the impact of controlling the ulcerative disease on disability, pain, and quality of life in SSc patients receiving bosentan. METHODS: ECLIPSE (Study AC-052-517) is a 2-year prospective, multicenter, and observational study. Patients with SSc who experienced at least 1 DU in the previous year and received bosentan were included between October 2009 and March 2011...
January 13, 2017: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/28213923/diagnostic-accuracy-of-charcot-s-triad-a-systematic-review
#20
REVIEW
Steva Rumsey, Joel Winders, Andrew D MacCormick
BACKGROUND: Charcot's triad is a well-established diagnostic tool for acute cholangitis (AC). It has been recognized as an inaccurate test in clinical practice; however, its exact sensitivity and specificity remain unclear. This knowledge is key to informing the value of its continued clinical application. The objectives of this study are to calculate an estimate of the sensitivity and specificity of Charcot's triad based on published research and consider its applicability to clinical practice and medical education...
February 17, 2017: ANZ Journal of Surgery
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