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Esther de Beus, Rosa L de Jager, Martine M Beeftink, Margreet F Sanders, Wilko Spiering, Evert-Jan Vonken, Michiel Voskuil, Michiel L Bots, Peter J Blankestijn
The effect of lowering sympathetic nerve activity by renal denervation (RDN) is highly variable. With the exception of office systolic blood pressure (BP), predictors of the BP-lowering effect have not been identified. Because dietary sodium intake influences sympathetic drive, and, conversely, sympathetic activity influences salt sensitivity in hypertension, we investigated 24-hour urinary sodium excretion in participants of the SYMPATHY trial. SYMPATHY investigated RDN in patients with resistant hypertension...
September 19, 2017: Journal of Clinical Hypertension
Zemao Yang, Ruike Lu, Zhigang Dai, An Yan, Qing Tang, Chaohua Cheng, Ying Xu, Wenting Yang, Jianguang Su
High salinity is a major environmental stressor for crops. To understand the regulatory mechanisms underlying salt tolerance, we conducted a comparative transcriptome analysis between salt-tolerant and salt-sensitive jute (Corchorus spp.) genotypes in leaf and root tissues under salt stress and control conditions. In total, 68,961 unigenes were identified. Additionally, 11,100 unigenes (including 385 transcription factors (TFs)) exhibited significant differential expression in salt-tolerant or salt-sensitive genotypes...
September 18, 2017: Genes
Ranju Prasad Mandal, Gunjan Mandal, Sudeshna Sarkar, Arindam Bhattacharyya, Swati De
Silver nanoparticles (AgNPs) have been synthesized in situ in micelles formed by the bile salt sodium deoxycholate (NaDC). The AgNPs exhibit "green" fluorescence. It has been shown in the present study that they can disrupt the components of gall stones/pigment stones. This unique ability of the AgNPs has been observed upon detailed study of the interaction between the endobiotic pigment bilirubin (BR) and bile salt (NaDC). In addition, these AgNPs show significant cytotoxicity towards the breast cancer cells (MCF-7)...
September 5, 2017: Journal of Photochemistry and Photobiology. B, Biology
Takeshi Nanjo, Emilio Carlos de Lucca, M Christina White
Amide-containing molecules are ubiquitous in natural products, pharmaceuticals, and materials science. Due to their intermediate electron-richness, they are not amenable to any of the previously developed N-protection strategies known to enable remote aliphatic C-H oxidations. Using information gleaned from a systematic study of the main features that makes remote oxidations of amides in peptide settings possible, we developed an imidate salt protecting strategy that employs methyl trifluoromethanesulfonate (MeOTf) as a reversible alkylating agent...
September 18, 2017: Journal of the American Chemical Society
Brandon Pei Hui Yeo, Mrinal Bhave, Siaw San Hwang
The small genome size of rice relative to wheat and barley, together with its salt sensitivity, make it an ideal candidate for studies of salt stress response. Transcriptomics has emerged as a powerful technique to study salinity responses in many crop species. By identifying a large number of differentially expressed genes (DEGs) simultaneously after the stress induction, it can provide crucial insight into the immediate responses towards the stressor. In this study, a Malaysian salt-tolerant indigenous rice variety named Bajong and one commercial rice variety named MR219 were investigated for their performance in plant growth and ion accumulation properties after salt stress treatment...
September 18, 2017: Journal of Plant Research
Erika Elizabeth Morales-Irigoyen, Yolanda de Las Mercedes Gómez-Y-Gómez, Jorge Luis Flores-Moreno, Marina Olivia Franco-Hernández
Pectobacterium carotovorum (Pc) is a phytopathogenic strain that causes soft rot disease in potato (Solanum tuberosum L.), resulting in postharvest losses. Chemical control is effective for managing this disease, but overdoses cause adverse effects. Because farmers insist on using chemical agents for crop protection, it is necessary to develop more effective pesticides in which the active compound released can be regulated. In this context, we proposed the synthesis of ZnAl-NADS, in which nalidixic acid sodium salt (NADS) is linked to a ZnAl-NO3 layered double hydroxide (LDH) host as a nanocarrier...
September 18, 2017: Environmental Science and Pollution Research International
Adriana Blanco-Metzler, Rafael Moreira Claro, Katrina Heredia-Blonval, Ivannia Caravaca Rodríguez, María de Los A Montero-Campos, Branka Legetic, Mary R L'Abbe
In 2012, Costa Rica launched a program to reduce salt and sodium consumption to prevent cardiovascular disease and associated risk factors, but little was known about the level of sodium consumption or its sources. Our aim was to estimate the magnitude and time trends of sodium consumption (based on food and beverage acquisitions) in Costa Rica. Data from the National Household Income and Expenditure Surveys carried out in 2004-2005 (n = 4231) and 2012-2013 (n = 5705) were used. Records of food purchases for household consumption were converted into sodium and energy using food composition tables...
September 15, 2017: Nutrients
Poulami Gupta, Bratati De
In plants, cell wall bound phenolics change in response to stress. The aim of the study was to investigate the effect of NaCl induced stress on wall bound phenolics in four rice varieties, of which two (Bhutnath, Nonabokra) were salt tolerant and two (MTU 7029, Sujala) were salt sensitive. After germination, seedlings were grown in hydroponic solution and subjected to salinity stress (25mM, 50mM, 100mM and 150mM NaCl) on day 12. Wall bound phenolic compounds were determined by GC-MS based metabolite analysis...
September 14, 2017: Plant Signaling & Behavior
K Armstrong, A M De Souza, P Sneddon, J E Potts, V E Claydon, S Sanatani
We would like to thank Dr Thaxter Nesbeth (1) for her interest and insightful comments on our paper entitled, "Exercise and the multidisciplinary holistic approach to adolescent dysautonomia"(2). We agree that recurrent orthostatic intolerance is often best managed through lifestyle modification rather than pharmacologic intervention (at least as an initial step), and as such in the present study we evaluated the impact of our exercise programme incorporated in addition to our standard clinical multidisciplinary management approach...
September 14, 2017: Acta Paediatrica
Amelia C Y Liu, Rico F Tabor, Martin D de Jonge, Stephen T Mudie, Timothy C Petersen
Local structure and symmetry are keys to understanding how a material is formed and the properties it subsequently exhibits. This applies to both crystals and amorphous and glassy materials. In the case of amorphous materials, strong links between processing and history, structure and properties have yet to be made because measuring amorphous structure remains a significant challenge. Here, we demonstrate a method to quantify proportions of the bond-orientational order of nearest neighbor clusters [Steinhardt, et al...
September 13, 2017: Proceedings of the National Academy of Sciences of the United States of America
Laura M L Carvalho, Cláudia N Ferreira, Daisy K D de Oliveira, Kathryna F Rodrigues, Rita C F Duarte, Márcia F A Teixeira, Luana B Xavier, Ana Lúcia Candido, Fernando M Reis, Ieda F O Silva, Fernanda M F Campos, Karina B Gomes
PURPOSE: Proteomic studies suggest an association between haptoglobin (Hp) and polycystic ovary syndrome (PCOS). Hp is a classic inflammatory marker and binds to the intravascular hemoglobin, avoiding the oxidative damages that can be caused by free hemoglobin. Inflammation and oxidative stress are important in the pathogenesis of the PCOS, one of the most frequent metabolic diseases in women. METHODS: To validate these proteomic studies, we developed a controlled cross-sectional study that aimed to evaluate the Hp levels and allelic and genotypic frequencies of Hp1-Hp2 polymorphism in Brazilian women with PCOS...
September 13, 2017: Journal of Assisted Reproduction and Genetics
Raquel Gavara, Andrea Pinto, Rocío Donamaría, M Elena Olmos, José M López de Luzuriaga, Laura Rodríguez
The reaction of [Au(C6F5)(tht)] (tht = tetrahydrothiophene) with 1,3,5-triaza-7-phosphaadamantane (PTA) and 3,7-diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane (DAPTA) leads to the formation of [Au(C6F5)(phosph)] (phosph = PTA, 1; phosph = DAPTA, 2). The compounds are slightly soluble in water and aggregate at higher concentrations, giving rise to the formation of needle- and rodlike structures (1) and well-organized spherical aggregates (2). Compounds 1 and 2 were reacted with AgPF6, giving rise to the formation in all cases of luminescent water-soluble 1:1 Au···Ag heterometallic complexes, as evidenced by X-ray crystal structure determination...
September 11, 2017: Inorganic Chemistry
Simone Bochner de Araujo, Maria C Merola, Dimitris Vlassopoulos, Gerald G Fuller
In a refinery, undesired high levels of salt concentration in crude oils are reduced by the contact of water with crude oil, where an emulsion is formed. Later, the separation of the water from the desalted oil is essential for the quality of both wastewater discharge and refined oil. However, complex components of crude oil such as asphaltenes may stabilize these emulsions causing difficulties in separation efficiency. Here we show the coalescence inhibition caused by asphaltene adsorption for both water-in-oil and oil-in-water emulsions, where the oil phase consists of a simple model of asphaltenes dissolved in toluene...
September 9, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
Hsien-Feng Kung, Yi-Chen Lee, Ya-Ling Huang, Yu-Ru Huang, Yi-Cheng Su, Yung-Hsiang Tsai
Histamine is a toxic chemical and is the causative agent of food poisoning. This foodborne toxin may be degraded by the oxidative deamination activity of certain microorganisms. In this study, we isolated four histamine-degrading Lactobacillus plantarum bacteria from miso products. Among them, L. plantarum D-103 exhibited 100% degradation of histamine in de Man Rogosa Sharpe (MRS) broth containing 50 ppm of histamine after 24 h of incubation at 30°C. The optimal growth, histamine oxidase, and histamine-degrading activity of L...
September 8, 2017: Journal of Food Protection
P Malaka De Silva, Ayush Kumar
Acinetobacter baumannii is an important bacterial pathogen whose resistance to antibiotics is a growing concern worldwide. Among a wide array of resistance mechanisms displayed by A. baumannii, energy-dependent efflux of antibiotics by proteins belonging the resistance-nodulation-division family serves as an important one. AdeABC pump has been shown to be active in various clinical isolates. Regulation of this pump is controlled by the AdeRS two-component system. In this study, we show that the AdeRS system, in addition to modulating A...
September 2, 2017: Journal of Membrane Biology
Sonia Donzelli, Mara Goetz, Kjestine Schmidt, Markus Wolters, Konstantina Stathopoulou, Simon Diering, Oleksandra Prysyazhna, Volkan Polat, Jenna Scotcher, Christian Dees, Hariharan Subramanian, Elke Butt, Alisa Kamynina, Sophie Schobesberger, S Bruce King, Viacheslav O Nikolaev, Cor de Wit, Lars I Leichert, Robert Feil, Philip Eaton, Friederike Cuello
Despite the mechanisms for endogenous nitroxyl (HNO) production and action being incompletely understood, pharmacological donors show broad therapeutic promise and are in clinical trials. Mass spectrometry and site-directed mutagenesis showed that chemically distinct HNO donors 1-nitrosocyclohexyl acetate or Angeli's salt induced disulfides within cGMP-dependent protein kinase I-alpha (PKGIα), an interdisulfide between Cys42 of the two identical subunits of the kinase and a previously unobserved intradisulfide between Cys117 and Cys195 in the high affinity cGMP-binding site...
August 30, 2017: Scientific Reports
María de Guadalupe Jaraquemada-Peláez, Xiaozhu Wang, Thomas J Clough, Yang Cao, Neha Choudhary, Kirsten Emler, Brian O Patrick, Chris Orvig
H4octapa is an extremely versatile acyclic chelator for a wide variety of medicinally relevant metal ions, forming complexes of both high thermodynamic and kinetic stability. This work reports a significantly simplified 3 step high yield straightforward synthesis of H4octapa directly from EDDA. Crystals of the octa-protonated form of the ligand [H8octapa](4+) as its tetrachloride salt, and of the mixed lanthanum-sodium salt of [La(octapa)](-) were isolated and characterized by X-ray diffraction. All eight protonation constants for the ligand were determined through combined potentiometric-spectrophotometric titrations and in batch experiments using UV spectrophotometry and (1)H NMR spectroscopy...
August 30, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
Cátia Fidalgo, Ricardo Martins, Diogo Neves Proença, Paula V Morais, Artur Alves, Isabel Henriques
Taxonomical analyses were performed on strain CPA58T, a novel isolate obtained from surface-sterilized aboveground tissues of the halophyte Halimione portulacoides, collected from a salt marsh in Ria de Aveiro, Portugal. The strain was Gram-stain-negative, rod-shaped, oxidase-negative and catalase-positive. Optimal growth was observed at 26 °C, at pH 6-8 and in the presence of 2 to 3 % (w/v) NaCl. Phylogenetic analyses, based on the 16S rRNA gene sequence, showed that strain CPA58T belongs to the genus Zunongwangia, with highest sequence similarities to both Zunongwangia profunda SM-A87T and Zunongwangia mangrovi P2E16T (96...
August 2017: International Journal of Systematic and Evolutionary Microbiology
Yan Luo, Robert Reid, Daniella Freese, Changbao Li, Jonathan Watkins, Huazhong Shi, Hengyou Zhang, Ann Loraine, Bao-Hua Song
Crop wild relatives harbor exotic and novel genetic resources, which hold great potential for crop improvement. Ipomoea imperati is a wild diploid relative of sweet potato with the capability of high salinity tolerance. We compared the transcriptomes of I. imperati under salt stress vs. control to identify candidate genes and pathways involved in salt response. De novo assembly produced 67,911 transcripts with a high depth of coverage. A total of 39,902 putative genes were assigned annotations, and 936 and 220 genes involved in salt response in roots and leaves, respectively...
August 29, 2017: Scientific Reports
José C Zanuncio, Mabio C Lacerda, Ricardo Alcántara-de la Cruz, Bruno P Brügger, Alexandre I A Pereira, Carlos F Wilcken, José E Serrão, Carlos S Sediyama
The increase of agricultural areas with glyphosate-resistant (GR) crops, and use of this herbicide in Brazil, makes necessary to assess its impacts on non-target organisms. The objective was to evaluate the development, reproduction and life table parameters of Podisus nigrispinus (Heteroptera: Pentatomidae) reared on GR-soybean plants treated with glyphosate formulations (Zapp-Qi, Roundup-Transorb-R and Roundup-Original) at the recommended field dose (720g acid equivalent ha(-1)). Glyphosate formulations had no affect on nymph and adult weight of this predator...
August 25, 2017: Ecotoxicology and Environmental Safety
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