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Sungoh Im, Ha-Nul Lee, Hyun Shin Jung, Sunghwan Yang, Eun-Jeong Park, Mi Sook Hwang, Won-Joong Jeong, Dong-Woog Choi
Pyropia tenera (Kjellman) are marine red algae that grow in the intertidal zone and lose more than 90% of water during hibernal low tides every day. In order to identify the desiccation response gene (DRG) in P. tenera, we generated 1,444,210 transcriptome sequences using the 454-FLX platform from the gametophyte under control and desiccation conditions. De novo assembly of the transcriptome reads generated 13,170 contigs, covering about 12 Mbp. We selected 1160 differentially expressed genes (DEGs) in response to desiccation stress based on reads per kilobase per million reads (RPKM) expression values...
April 18, 2017: Marine Biotechnology
Jung Hyun Cho, Jin Cheul Kim, Hyung-Seo Kim, Dong Shik Kim, Kyeong Soo Kim, Yong Il Kim, Chul Soon Yong, Jong Oh Kim, Yu Seok Youn, Kyung Taek Oh, Jong Soo Woo, Han-Gon Choi
The purpose of this study was to develop a novel dabigatran etexilate hemisuccinate (DEH) salt-loaded polycap with bioequivalence to the dabigatran etexilate mesylate (DEM)-loaded commercial product. DEH prepared with dabigatran etexilate base (DE) and succinic acid was less hygroscopic but less soluble than DEM. Numerous micronized DEHs and DEH-loaded solid dispersions were prepared employing the spiral jet-milling and spray-drying techniques, respectively. Among the formulations prepared, a micronized DEH prepared with the injection air at 1...
April 13, 2017: International Journal of Pharmaceutics
V Lavoué, A Rousselin, S Delplanque, M Pinsard, S Henno, F Foucher, J Levêque, T de la Motte Rouge
Epithelial ovarian cancer (EOC) affects 4500 women a year in France, with a survival of 30% at 5 years. Treatment is based on extensive surgery and chemotherapy. Around 15% of EOCs are due to genetic mutation predisposition essentially with mutated BRCA1 and BRCA2 genes. Four histological subtypes are described (serous, endometrioid, and mucinous cells to clear), corresponding to different carcinogenesis and distinct molecular mutations. High-grade serous EOCs have a mutation of the BRCA genes in 20-30% of cases...
February 2017: J Gynecol Obstet Hum Reprod
Andrés Córdoba, Daniel M Hinckley, Joshua Lequieu, Juan J de Pablo
Genome packing in viruses and prokaryotes relies on positively charged ions to reduce electrostatic repulsions, and induce attractions that can facilitate DNA condensation. Here we present molecular dynamics simulations spanning several microseconds of dsDNA packing inside nanometer-sized viral capsids. We use a detailed molecular model of DNA that accounts for molecular structure, basepairing, and explicit counterions. The size and shape of the capsids studied here are based on the 30-nanometer-diameter gene transfer agents of bacterium Rhodobacter capsulatus that transfer random 4...
April 11, 2017: Biophysical Journal
Speranza Rubattu, Maria Cotugno, Franca Bianchi, Luigi Sironi, Paolo Gelosa, Rosita Stanzione, Maurizio Forte, Claudia De Sanctis, Michele Madonna, Simona Marchitti, Alice Pignieri, Sebastiano Sciarretta, Massimo Volpe
OBJECTIVES: Uncoupling protein-2 (UCP2), a mitochondrial anion transporter involved in mitochondrial uncoupling, limiting reactive oxygen species formation, is significantly downregulated in kidneys of high-salt-fed stroke-prone spontaneously hypertensive rat (SHRSP), where it associates with increased renal damage occurrence. METHODS: We aimed at establishing whether UCP2 differential expression associates with renal damage in two stroke-resistant spontaneously hypertensive rat (SHRSR)/SHRSP-derived stroke congenic lines...
April 10, 2017: Journal of Hypertension
Eun-Jin Han, Hyun Young Kim, Naeun Lee, Nam-Hoon Kim, Seung-Ah Yoo, H Moo Kwon, Dae-Myung Jue, Yune-Jung Park, Chul-Soo Cho, Tran Quang De, Dae Young Jeong, Hee-Jong Lim, Woo Kyu Park, Ge Hyeong Lee, Heeyeong Cho, Wan-Uk Kim
Nuclear factor of activated T cells 5 (NFAT5) has been implicated in the pathogenesis of various human diseases, including cancer and arthritis. However, therapeutic agents inhibiting NFAT5 activity are currently unavailable. To discover NFAT5 inhibitors, a library of >40,000 chemicals was screened for the suppression of nitric oxide, a direct target regulated by NFAT5 activity, through high-throughput screening. We validated the anti-NFAT5 activity of 198 primary hit compounds using an NFAT5-dependent reporter assay and identified the novel NFAT5 suppressor KRN2, 13-(2-fluoro)-benzylberberine, and its derivative KRN5...
March 31, 2017: EBioMedicine
Bo Xu, Yingzhe Wang, Shichao Zhang, Qiang Guo, Yan Jin, Jingjing Chen, Yunhang Gao, Hongxia Ma
Lead (Pb) is one of the nonessential and toxic metals that threaten the environment and human health. Medicago sativa L. is a legume with high salt tolerance and high biomass production. It is not only a globally important forage crop but is also an ideal plant for phytoremediation. However, the biological and molecular mechanisms that respond to heavy metals are still not well defined in M. sativa. In this study, de novo and strand-specific RNA-sequencing was performed to identify genes involved in the Pb stress response in M...
2017: PloS One
Teresa B De Leon, Steven Linscombe, Prasanta K Subudhi
Salinity is a major threat to rice production worldwide. Several studies have been conducted to elucidate the molecular basis of salinity tolerance in rice. However, the genetic information such as quantitative trait loci (QTLs) and molecular markers, emanating from these studies, were rarely exploited for marker-assisted breeding. To better understand salinity tolerance and to validate previously reported QTLs at seedling stage, a set of introgression lines (ILs) of a salt tolerant donor line 'Pokkali' developed in a susceptible high yielding rice cultivar 'Bengal' background was evaluated for several morphological and physiological traits under salt stress...
2017: PloS One
A Ruiz-Aguirre, M I Polo-López, P Fernández-Ibáñez, G Zaragoza
Although Membrane Distillation (MD) has been extensively studied for desalination, it has other applications like removing all kinds of solutes from water and concentrating non-volatile substances. MD offers the possibility of producing a clean stream while concentrating valuable compounds from waste streams towards their recovery, or emerging contaminants and pathogens present in wastewater in order to facilitate their chemical elimination. This paper analyses the elimination of bacterial spores from contaminated water with MD and the role of MD in the subsequent treatment of the concentrate with photo-Fenton process...
April 3, 2017: Science of the Total Environment
Adma Nadja Ferreira de Melo, Geany Targino de Souza, Donald Schaffner, Tereza C Moreira de Oliveira, Janeeyre Ferreira Maciel, Evandro Leite de Souza, Marciane Magnani
This study assessed changes in thermo-tolerance and capability to survive to simulated gastrointestinal conditions of Salmonella Enteritidis PT4 and Salmonella Typhimurium PT4 inoculated in chicken breast meat following exposure to stresses (cold, acid and osmotic) commonly imposed during food processing. The effects of the stress imposed by exposure to oregano (Origanum vulgare L.) essential oil (OVEO) on thermo-tolerance were also assessed. After exposure to cold stress (5°C for 5h) in chicken breast meat the test strains were sequentially exposed to the different stressing substances (lactic acid, NaCl or OVEO) at sub-lethal amounts, which were defined considering previously determined minimum inhibitory concentrations, and finally to thermal treatment (55°C for 30min)...
March 29, 2017: International Journal of Food Microbiology
Juan Castro-Severyn, Francisco Remonsellez, Sandro L Valenzuela, Cesar Salinas, Jonathan Fortt, Pablo Aguilar, Coral Pardo-Esté, Cristina Dorador, Raquel Quatrini, Franck Molina, Daniel Aguayo, Eduardo Castro-Nallar, Claudia P Saavedra
The Atacama Desert hosts diverse ecosystems including salt flats and shallow Andean lakes. Several heavy metals are found in the Atacama Desert, and microorganisms growing in this environment show varying levels of resistance/tolerance to copper, tellurium, and arsenic, among others. Herein, we report the genome sequence and comparative genomic analysis of a new Exiguobacterium strain, sp. SH31, isolated from an altiplanic shallow athalassohaline lake. Exiguobacterium sp. SH31 belongs to the phylogenetic Group II and its closest relative is Exiguobacterium sp...
2017: Frontiers in Microbiology
Philip Ching Yat Wong, Jun Guo, Aidong Zhang
The landmark report by de Bold et al. in 1981 signified the heart as one of the endocrine organs involved in fluid and salt balance (de Bold AJ, Borenstein HB, Veress AT, Sonnenberg H. Life Sci 28: 89-94, 1981). Atrial natriuretic peptide (ANP) and brain natriuretic peptide (BNP) are secreted from cardiomyocytes in response to cardiac stretch as in the case of heart failure, whereas C-type natriuretic peptide (CNP) is secreted from endothelial and renal cells in response to cytokines and endothelium-dependent agonists, such as acetylcholine...
June 1, 2017: Advances in Physiology Education
Myriam Rachid, Sophie Dreux, Gauthier Pean de Ponfilly, Rosa Vargas-Poussou, Isabelle Czerkiewicz, Didier Chevenne, Jean-François Oury, Georges Deschênes, Françoise Muller
Bartter syndrome is a severe inherited tubulopathy characterized at birth by salt wasting, severe polyuria, dehydration, growth retardation and secondary hyperaldosteronism. Prenatally, the disease is usually discovered following onset of severe polyhydramnios. We studied amniotic fluid aldosterone concentration in cases of Bartter syndrome and in control groups. Amniotic fluid aldosterone was assayed by radioimmunoassay. We undertook a retrospective case-control study based on 36 cases of postnatally diagnosed Bartter syndrome and 144 controls matched for gestational age...
April 1, 2017: Annales de Biologie Clinique
Rafia Azmat, Noshab Qamar, Raheela Naz, Anum Khursheed
The advanced oxidation process is certainly used for the dye waste water treatment. In this continuation a new advanced oxidation via aqueous alkaline iodine was developed for the oxidation of acridine orange (AO) {3, 6 -bis (dimethylamino) acridine zinc chloride double salt}. Oxidation Kinetics of AO by alkaline solution of iodine was investigated spectrophotometrically at λmax 491 nm. The reaction was monitored at various operational parameters like several concentrations of dye and iodine, pH, salt electrolyte and temperature...
November 2016: Pakistan Journal of Pharmaceutical Sciences
Bianca Mesquita Coelho Botrel, Daiane Cássia Pereira Abreu, Adelir Aparecida Saczk, Matheus Julien Ferreira Bazana, Sabrina Mesquita Coelho, Priscila Vieira E Rosa, Zuy Maria Magriotis, Rafael Machado Felix de Lima
The SDME-GC/MS method was applied to residual determination of anesthetic menthol in fish. The extractions took place from the headspace of the sample using 1.8µL of octane as the extraction solvent. To obtain the ideal extraction condition, was used Response Surface Methodology, defining: extraction time 15min, temperature 30°C and salt 3g. The method showed LOD and LOQ of 0.021 and 1.56µgL(-1) respectively, recovery of 94% and R(2) of 0.9997. The analyzes were performed on tilapia fillets anesthetized in five concentrations between 5 and 15×10(4)µgL(-1) and with times of slaughter after anesthesia of 0, 12, 24 and 48h...
August 15, 2017: Food Chemistry
Carlo Annaratone, Ans De Roeck, Maarten L A T M Hertog, Bart M Nicolaï
Belgian endive (Cichorium intybus L. var. foliosum Hegi), a popular produce in northern Europe, has been thoroughly studied in regard to its bitter sesquiterpene lactones content. Much less is known about on its sweetness and crunchiness, which are typically linked to the content of polar compounds such as sugars, organic acids and salts. Through HILIC-HPLC-MS, it was shown that simple sugars, amino acids, and potassium chloride are abundant in Belgian endive extracts. Subsequently, a HILIC-HPLC-ELSD method for the analysis of such compounds with run times below six minutes was developed...
August 15, 2017: Food Chemistry
Danielly Chierrito de Oliveira, Patricia Guerrero de Sousa, Camila Borges Dos Reis, Fernanda Stumpf Tonin, Laiza Maria Steimbach, Suzane Virtuoso, Fernando Fernandez-Llimos, Roberto Pontarolo, Andréia Cristina Conegero Sanches
OBJECTIVE: The aim of the study was to analyze evidence comparing the profile of drugs used to treat ADHD in adult patients. METHOD: Systematic searches were conducted in electronic databases. Randomized, double-blind, parallel controlled trials that evaluated the safety of drugs in ADHD were included. The statistical analyses were conducted by pairwise meta-analyses and mixed treatment comparison (MTC). RESULTS: Ten ( n = 3006) trials were included in the analyses...
March 1, 2017: Journal of Attention Disorders
Ramsey I Kamar, Edward J Banigan, Aykut Erbas, Rebecca D Giuntoli, Monica Olvera de la Cruz, Reid C Johnson, John F Marko
The binding of transcription factors (TFs) to DNA controls most aspects of cellular function, making the understanding of their binding kinetics imperative. The standard description of bimolecular interactions posits that TF off rates are independent of TF concentration in solution. However, recent observations have revealed that proteins in solution can accelerate the dissociation of DNA-bound proteins. To study the molecular basis of facilitated dissociation (FD), we have used single-molecule imaging to measure dissociation kinetics of Fis, a key Escherichia coli TF and major bacterial nucleoid protein, from single dsDNA binding sites...
March 31, 2017: Proceedings of the National Academy of Sciences of the United States of America
Gabriele Carra Forte, Daniela Rischter da Silva, Maria Luiza Hennemann, Roberta Sarmento, Jussara Carnevale Almeida, Paulo de Tarso Roth Dalcin
INTRODUCTION: Obesity in asthmatic patients has important relationships with asthma control, pulmonary function, and quality of life. The objective of this study was to conduct a systematic review of the literature on the effect of diet on asthma management in adults. METHODS: We searched PubMed, Embase, and Scopus (January 1948-October 2014) for randomized clinical trials that evaluated the effects of diet in adults with asthma. RESULTS: Of 12,215 studies identified, 21 were included...
March 31, 2017: Critical Reviews in Food Science and Nutrition
Young-Kwon Jo, Min Hee Park, Hyunju Choi, HooKeun Lee, Jong-Moon Park, Jae Jun Sim, Chonghwan Chang, Keun-Yeong Jeong, Hwan Mook Kim
Methionine (Met) is involved in one-carbon de novo nucleotide synthesis and is an essential amino acid for cell survival. The impact of lactate calcium salt (CaLa) on the Met metabolism was investigated to evaluate the enhanced antitumor effect of methotrexate (MTX) on colorectal cancer (CRC) cells. Met dependency relating to homocysteine (Hcy) and betaine was investigated in human CRC cells (HCT-116 and HT-29) using a viability assay and liquid chromatography-mass spectrometry. Expression of betaine transporter-1 (BGT-1) following treatment with MTX alone or with CaLa was determined by Western blot...
March 29, 2017: Nutrition and Cancer
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