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https://www.readbyqxmd.com/read/28749508/linking-hygroscopicity-and-the-surface-microstructure-of-model-inorganic-salts-simple-and-complex-carbohydrates-and-authentic-sea-spray-aerosol-particles
#1
Armando D Estillore, Holly S Morris, Victor W Or, Hansol D Lee, Michael R Alves, Meagan A Marciano, Olga Laskina, Zhen Qin, Alexei V Tivanski, Vicki H Grassian
Individual airborne sea spray aerosol (SSA) particles show diversity in their morphologies and water uptake properties that are highly dependent on the biological, chemical, and physical processes within the sea subsurface and the sea surface microlayer. In this study, hygroscopicity data for model systems of organic compounds of marine origin mixed with NaCl are compared to data for authentic SSA samples collected in an ocean-atmosphere facility providing insights into the SSA particle growth, phase transitions and interactions with water vapor in the atmosphere...
July 27, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28749205/esophageal-endoscopic-submucosal-dissection-using-sodium-hyaluronate-is-safe-and-effective
#2
Chihiro Iwashita, Hirotsugu Sakamoto, Yoshimasa Miura, Satoshi Shinozaki, Yoshikazu Hayashi, Yuji Ino, Hiroyuki Osawa, Mio Tamba, Kohei Morita, Alan Kawarai Lefor, Hironori Yamamoto
BACKGROUND/AIMS: A submucosal cushion of sodium hyaluronate facilitates gastric and colorectal endoscopic submucosal dissection (ESD). However, few studies have evaluated the utility of sodium hyaluronate for ESD of esophageal lesions. The aim of this study is to evaluate the utility and safety of sodium hyaluronate for ESD of superficial esophageal squamous cell neoplasms (ESCN). MATERIAL AND METHODS: We retrospectively reviewed 111 ESCN in 86 patients treated by ESD between September 2007 and April 2013...
July 27, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28748298/comparison-of-sodium-hypochlorite-extrusion-by-five-irrigation-systems-using-an-artificial-root-socket-model-and-a-quantitative-chemical-method
#3
Adham A Azim, Hacer Aksel, M Margaret Jefferson, George T-J Huang
OBJECTIVES: This is to compare the volumes of irrigant apically extruded by five irrigation systems in an artificial socket model simulating clinical conditions. MATERIALS AND METHODS: Twenty extracted human single-rooted teeth were enlarged to size 40/04 and then embedded in silicone impression material. The root canal space was irrigated with nominal 3% sodium hypochlorite (NaOCl) using standard needle irrigation (SNI) with a 30-gauge notched needle, EndoActivator (EA), XP Endo Finisher (XP Endo), EndoVac (EV), and photon-induced photoacoustic streaming (PIPS)...
July 26, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28747362/alterations-of-adrenal-steroidomic-profiles-in-preterm-infants-at-birth
#4
Simon Travers, Laetitia Martinerie, Pascal Boileau, Marc Lombès, Eric Pussard
OBJECTIVE: Preterm infants have relative adrenal and kidney immaturity. Recently, we linked their urine sodium loss to a hypoaldosteronism at variance with an appropriate stimulation of the renin-angiotensin system. To investigate this defective aldosterone secretion, we analyse the biosynthesis pathways of adrenal steroids in neonates according to gestational age (GA). DESIGN: Multicentre study (Premaldo) including 152 neonates classified into three groups: group 1 (very preterm (VPT)): <33 ‰gestational weeks (GW); group 2 (preterm (PT)): 33-36 GW and group 3 (term (T)): ≥37 GW...
July 26, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/28746887/optimization-of-carboxymethyl-cellulose-hydrogels-beads-generated-by-an-anionic-surfactant-micelle-templating-for-cationic-dye-uptake-swelling-sorption-and-reusability-studies
#5
Tayeb Benhalima, Hafida Ferfera-Harrar, Djahida Lerari
Carboxymethyl cellulose hydrogels beads were synthesized by ionotropic gelation in Al(3+) solutions with or without sodium n-dodecyl sulfate (SDS) surfactant as a pore-forming micelle templating and NaCl as porogen agent. FTIR spectroscopy and EDX analysis evidenced the formation of hydrogels. The morphology observed by Scanning Electron Microscopy (SEM) showed rough porous surfaces. The swelling properties in various media were studied. The addition of SDS optimized the capacity and initial rate of swelling...
July 23, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28745270/chromosomal-and-nuclear-alterations-in-the-root-tip-cells-of-vicia-faba-induced-by-sodium-chloride
#6
(no author information available yet)
The objective of this study was to investigate the effect of DO on nitrification in a sequencing batch reactor (SBR) treating low ammonia wastewater (40 mg N/L) at low temperature (14oC). During the 130 days of operation, three DO levels (5-6 mg DO/L, 2-3 mg DO/L and 0.8-1.0 mg DO/L) were tested. DO reduction resulted in lower ammonia oxidizing bacteria (AOB) and nitrite oxidizing bacteria (NOB) activity with decreasing ammonia conversion ratio (ACR) and increasing nitrite accumulation ratio (NAR). The maximum growth rates of AOB and NOB determined in this study (0...
July 19, 2017: Water Environment Research: a Research Publication of the Water Environment Federation
https://www.readbyqxmd.com/read/28743325/low-doses-of-simvastatin-potentiate-the-effect-of-sodium-alendronate-in-inhibiting-bone-resorption-and-restore-microstructural-and-mechanical-bone-properties-in-glucocorticoid-induced-osteoporosis
#7
Priscila L Sequetto, Reggiani V Gonçalves, Aloísio S Pinto, Maria G A Oliveira, Izabel R S C Maldonado, Tânia T Oliveira, Rômulo D Novaes
By using an experimental model of dexamethasone-induced osteoporosis we investigated the effects of different therapeutic schemes combining sodium alendronate (SA) and simvastatin on bone mineral and protein composition, microstructural and mechanical remodeling. Wistar rats were randomized into eight groups: G1: non-osteoporotic; G2: osteoporotic; G3, G4, and G5: osteoporotic+SA (0.2, 0.4, and 0.8 mg/kg, respectively); G6, G7, and G8: osteoporotic+SA (0.2, 0.4, and 0.8 mg/kg, respectively)+simvastatin (0.4, 0...
July 26, 2017: Microscopy and Microanalysis
https://www.readbyqxmd.com/read/28743296/case-report-of-hypnic-headache-a-rare-headache-disorder-with-nocturnal-symptoms
#8
Kanishka P Dissanayake, Damindi P Wanniarachchi, Udaya K Ranawaka
BACKGROUND: Headache is one of the commonest complaints reported to physicians worldwide. Yet, arriving at the proper diagnosis can be a challenge in many patients. Although most headaches belong to common categories of migraine and tension-type headache, which are diagnosed and managed relatively easily, several uncommon headache disorders can lead to delays in diagnosis. Certain medications are more efficacious than others in managing these headache disorders, hence establishing the correct diagnosis is of paramount importance...
July 25, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28743278/status-of-insecticide-resistance-in-anopheles-mosquitoes-in-ubon-ratchathani-province-northeastern-thailand
#9
Anchana Sumarnrote, Hans J Overgaard, Nattapol Marasri, Bénédicte Fustec, Kanutcharee Thanispong, Theeraphap Chareonviriyaphap, Vincent Corbel
BACKGROUND: Malaria is common in hilly, forested areas along national borders in Southeast Asia. Insecticide resistance in malaria vectors has been detected in a few countries in the Greater Mekong sub-region (GMS), representing a threat to malaria control and prevention. This study aims to determine the insecticide resistance status of Anopheles mosquitoes in Ubon Ratchathani province, northeastern Thailand, where increasing number of malaria cases were reported recently. METHODS: Mosquitoes were collected in 2013-2015 using human landing and cattle bait collections in six sites during both the rainy and dry seasons...
July 25, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28742644/update-on-sglt2-inhibitors-new-data-released-at-the-american-diabetes-association
#10
Sara Lee
Sodium-glucose cotransporter 2 (SGLT2) inhibitors are one of the newer classes of antiglycemic agents approved for the management of patients with type 2 diabetes mellitus. Due to their unique mechanism of action, SGLT2 inhibitors have shown to be beneficial beyond glucose control. The improvement in cardiovascular (CV) outcomes was first observed in the landmark EMPA-REG OUTCOMES study. Following these results, numerous CV outcome trials were designed to identify whether the beneficial CV and renal effects observed with empagliflozin are unique or a drug class effect...
September 2017: Critical Pathways in Cardiology
https://www.readbyqxmd.com/read/28741715/first-report-of-carglumic-acid-in-a-patient-with-citrullinemia-type-1-argininosuccinate-synthetase-deficiency
#11
E Kose, P Kuyum, B Aksoy, J Häberle, N Arslan, Y Ozturk
WHAT IS KNOWN AND OBJECTIVE: Carglumic acid is a structural analogue of human N-acetylglutamate, which has become an alternative therapeutic option for hyperammonaemia in organic acidaemias such as isovaleric acidaemia, methylmalonic acidaemia and propionic acidaemia, and it has been suggested in other urea cycle disorders such as ornithine transcarbamylase deficiency and carbamoyl phosphate synthetase 1 deficiency. CASE DESCRIPTION: A male newborn was diagnosed with citrullinemia after serum amino acid analyses revealed markedly elevated citrulline concentration together with homozygous p...
July 25, 2017: Journal of Clinical Pharmacy and Therapeutics
https://www.readbyqxmd.com/read/28741635/liposomes-loading-sodium-chloride-as-effective-thermo-seeds-for-microwave-ablation-of-hepatocellular-carcinoma
#12
Qunfang Zhou, Songsong Wu, Ningqiang Gong, Xin Li, Jianping Dou, Mengjuan Mu, Xiaoling Yu, Jie Yu, Ping Liang
Microwave ablation (MWA) is a promising minimally invasive therapy that has been widely used to treat hepatocellular carcinoma (HCC). However, the efficiency of MWA in treating HCC is evidently limited by the incomplete ablation of large tumors and tumors in high-risk locations. Here, we report the value of using liposomes packed with sodium chloride (NaCl-LPs) as effective thermo-seeds for MWA of HCC. The prepared liposomes exhibited excellent heat conversion ability by showing a more rapid temperature increase than free NaCl medium, blank liposomes or water under microwave irradiation...
July 25, 2017: Nanoscale
https://www.readbyqxmd.com/read/28740977/effects-of-addition-of-hydrocolloids-on-the-textural-and-structural-properties-of-high-protein-intermediate-moisture-food-model-systems-containing-sodium-caseinate
#13
J Li, Y Wu, Y Ma, N Lu, J M Regenstein, P Zhou
High-protein intermediate moisture food (HPIMF) containing sodium caseinate (NaCN) often gave a harder texture compared with that made from whey proteins or soy proteins, due to the aggregation of protein particles. The objectives of this study were to explore whether the addition of hydrocolloids could soften the texture and illustrate the possible mechanism. Three kinds of hydrocolloids, xanthan gum, κ-carrageenan, and gum arabic were chosen, and samples including of these three kinds of hydrocolloids were studied through texture analysis using a TPA test and microstructure observation by confocal laser scanning microscopy (CLSM) and scanning electron microscopy (SEM)...
July 25, 2017: Food & Function
https://www.readbyqxmd.com/read/28738611/a-novel-electrochemical-sensor-based-on-wo3-nanorods-decorated-poly-sodium-4-styrenesulfonate-functionalized-graphene-nanocomposite-modified-electrode-for-detecting-of-puerarin
#14
Shasha Jing, Huijun Zheng, Li Zhao, Lingbo Qu, Lanlan Yu
An electrochemical sensing platform was fabricated based on composition of poly(sodium 4-styrenesulfonate) (PSS), graphene (GN) and WO3 nanorods on glassy carbon electrode (GCE). The PSS-GN/WO3 nanocomposite significantly increased the oxidative activity of puerarin due to the individual merit and mutual effect of PSS-GN and WO3 nanorods which improved the performance of the electrochemical sensor with high sensitivity. Cyclic voltammetry (CV) and linear sweep voltammetry (LSV) measurements were used for the detection of puerarin...
November 1, 2017: Talanta
https://www.readbyqxmd.com/read/28738576/development-of-ph-responsive-polymer-and-citrate-aqueous-two-phase-system-for-extractive-bioconversion-of-cefprozil
#15
Jialing Chen, Zhaoyang Ding, Hongxia Pan, Xuejun Cao
A pH-responsive aqueous two-phase system (pH-ATPS) has been developed by sodium citrate and a recyclable pH-responsive polymer PADB6.8 that can response to the change of pH values. Phase separation mechanism is studied through Low field-NMR. All variables affecting the phase separation are evaluated. Phase characteristics (viscosity, density, interfacial tension) and phase separation kinetic are studied for understanding of separation process and operational parameters in applications. This pH-ATPS has the characters of low interfacial tension, high recovery leading efficient mass transfer and low cost...
November 1, 2017: Talanta
https://www.readbyqxmd.com/read/28737406/preclinical-effect-of-absorption-modifying-excipients-on-rat-intestinal-transport-of-five-model-compounds-and-the-intestinal-barrier-marker-51-cr-edta
#16
David Dahlgren, Carl Roos, Anders Lundqvist, Peter Langguth, Christer Tannergren, Markus Sjöblom, E Sjögren, H Lennernas
There is a renewed interest from the pharmaceutical field to develop oral formulations of compounds such as peptides, oligonucleotides, and polar drugs. However, these often suffer from insufficient absorption across the intestinal mucosal barrier. One approach to circumvent this problem is the use of absorption modifying excipient(s) (AME). This study determined the absorption enhancing effect of four AMEs (sodium dodecyl sulfate, caprate, chitosan, N-acetylcysteine) on five model compounds in a rat jejunal perfusion model...
July 24, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28737387/self-assembly-of-lecithin-and-bile-salt-in-the-presence-of-inorganic-salt-in-water-mesoscale-computer-simulation
#17
Anastasia A Markina, Viktor A Ivanov, Pavel V Komarov, Alexei R Khokhlov, Shih-Huang Tung
The influence of inorganic salt on the structure of lecithin/bile salt mixtures in aqueous solution is studied by means of dissipative particle dynamics simulations. We propose a coarse-grained model of phosphatidylcholine and two types of bile salts (sodium cholate and sodium deoxycholate), and also take into account the presence of low molecular weight salt. This model allows us to study the system on rather large time and length scales (up to about ~20 µs and 50 nm) and to reveal mechanisms of experimentally observed increasing of viscosity upon increasing the low molecular weight salt concentration in this system...
July 24, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28736378/-optimization-of-emollient-formulation-for-treating-atopic-dermatitis-by-skin-physiological-index-testing
#18
Song-Gen Huang, Xi-Xiao Yang, Li-Qian Mo, Xian-Yi Zhou
OBJECTIVE: To optimize the formulation of an emollient for treatment of atopic dermatitis prepared using ceramide, sodium hyaluronate, paeonol, and camellia-seed oil. METHODS: The emollients with different ratios of the 4 components were designed according to the L9(34)orthogonal table with 4 factors and 3 levels. The efficacy of the prepared emollients was tested in 4-6 week-old BALB/c mouse models of atopic dermatitis to determine the optimal formulation of the emollient by evaluating skin water content, transepidermal water loss (TEWL), pharmacodynamics and skin irritation...
July 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28736142/respiration-adaptation-of-activated-sludge-under-dissolved-oxygen-and-hypochlorite-stressed-conditions
#19
Zhi-Hua Li, Zhi-Bo Ma, Han-Qing Yu
In this work, the relationship between environmental disturbance and the recovery of activated sludge at a low dissolved oxygen of 0.5mg/l or in the presence of sodium hypochlorite of 1-15mg Cl2/gSS/d was examined. When microorganisms entered their physiological adaptation period, a sharp increase in endogenous respiration rate was observed. The activity recovery potential of sludge depended on the ratio of the endogenous respiration rate to the maximum respiration rate. A subsequent decrease in this ratio after a sharp increase indicates that the disturbance was recoverable...
July 3, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28736005/benefits-of-intraoperative-continuous-renal-replacement-therapy-during-liver-transplantation-in-patients-with-renal-dysfunction
#20
S D Baek, M Jang, W Kim, H Yu, S Hwang, S-G Lee, G-S Hwang, E K Lee, S M Kim, J W Chang
BACKGROUND: Comparative outcomes of continuous renal replacement therapy during liver transplantation have not been investigated. We retrospectively compared the outcomes of intraoperative continuous renal replacement therapy with those of non-dialytic conservative treatment in patients with pretransplant renal dysfunction. METHODS: We analyzed 240 transplantation patients with preoperative renal dysfunction (estimated glomerular filtration rate <60 mL/min/1...
July 2017: Transplantation Proceedings
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