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https://www.readbyqxmd.com/read/27905852/sweat-chloride-the-critical-biomarker-for-cystic-fibrosis-trials
#1
Marci K Sontag
No abstract text is available yet for this article.
December 1, 2016: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/27904407/effect-of-various-sodium-chloride-mass-fractions-on-wheat-and-rye-bread-using-different-dough-preparation-techniques
#2
Marta Ambrosewicz-Walacik, Małgorzata Tańska, Daniela Rotkiewicz, Andrzej Piętak
This study assessed the selected properties of bread with reduced amount of sodium chloride. The bread was made from white and wholemeal wheat flour and rye flour. The dough was prepared using three techniques: with yeast, natural sourdough or starter sourdough. Sodium chloride was added to the dough at 0, 0.5, 1.0 and 1.5% of the flour mass. The following bread properties were examined in the study: yield and volume of the loaf, moisture content, crumb firmness and porosity, and organoleptic properties. Reducing the mass fraction of added sodium chloride was not found to have considerable effect on bread yield, whereas it had a significant and variable effect on the loaf volume, and crumb firmness and porosity...
June 2016: Food Technology and Biotechnology
https://www.readbyqxmd.com/read/27904267/application-of-topical-acids-improves-atopic-dermatitis-in-murine-model-by-enhancement-of-skin-barrier-functions-regardless-of-the-origin-of-acids
#3
Noo Ri Lee, Hae-Jin Lee, Na Young Yoon, Donghye Kim, Minyoung Jung, Eung Ho Choi
BACKGROUND: The acidic pH of the stratum corneum (SC) is important for epidermal permeability barrier homeostasis. Acidification of the skin surface has been suggested as a therapeutic strategy for skin disorders such as atopic dermatitis (AD). OBJECTIVE: We performed an animal study to evaluate the usefulness of acidification of SC for inhibition of AD lesions and to find out if the therapeutic effect of vinegar is attributable to its herbal contents, rather than its acidity...
December 2016: Annals of Dermatology
https://www.readbyqxmd.com/read/27904077/synthesis-characterization-and-evaluation-of-thiazolidine-derivatives-of-cysteine-for-suppressing-eumelanin-production
#4
Yusuke Amino, Yoshinobu Takino, Megumi Kaneko, Fumie Ookura, Mai Yamamoto, Tatsuki Kashiwagi, Keiji Iwasaki
In the pathway of melanin biosynthesis, cysteine (Cys) is utilized for the synthesis of pheomelanin. Accordingly, Cys is considered to suppress the formation of brown-black eumelanin. Although attempts have been made to utilize Cys and its derivatives as skin-whitening agents, their instability and odor hinders their application as a cosmetic agent. Herein, N-acetyl-2-methylthiazolidine-2,4-dicarboxylic acid ethyl ester (AcCP2Et) was proposed as a candidate for a stable and prolonged-release derivative of Cys to inhibit dopachrome formation after its degradation in melanocytes...
2016: Chemical & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/27904046/cocl2-decreases-ec-sod-expression-through-histone-deacetylation-in-cos7-cells
#5
Shuhei Hattori, Tetsuro Kamiya, Hirokazu Hara, Masayuki Ninomiya, Mamoru Koketsu, Tetsuo Adachi
Extracellular-superoxide dismutase (EC-SOD), one of the SOD isozymes, is negatively regulated under hypoxic conditions, and decreases in its expression may exacerbate vascular diseases. Moreover, epigenetics, such as DNA methylation and histone modifications, are known to play a critical role in the progression of cancer, type 2 diabetes, and atherosclerosis. We previously investigated the involvement of reactive oxygen species (ROS) and p38 mitogen-activated protein kinase (MAPK) in decreases in EC-SOD expression in hypoxic COS7 cells; however, the role of epigenetics in this process currently remains unknown...
2016: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/27903222/sustained-elabela-gene-therapy-in-high-salt-induced-hypertensive-rats
#6
Claire A Schreiber, Sara J Holditch, Alex Generous, Yasuhiro Ikeda
BACKGROUND: Elabela (ELA) is a recently identified apelin receptor agonist essential for cardiac development, but its biology and therapeutic potential are unclear. In humans ELA transcripts are detected in embryonic stem cells, induced pluripotent stem cells, kidney, heart and blood vessels. ELA through the apelin receptor promotes angiogenesis in vitro, relaxes murine aortic blood vessels and attenuates high blood pressure in vivo. The apelin receptor when bound to its original ligand, apelin, exerts peripheral vasodilatory and positive inotropic effects, conferring cardioprotection in vivo...
November 21, 2016: Current Gene Therapy
https://www.readbyqxmd.com/read/27901358/mdck-cells-are-capable-of-water-secretion-and-reabsorption-in-response-to-changes-in-the-ionic-environment
#7
Janne P Capra, Sinikka M Eskelinen
A prerequisite for tissue electrolyte homeostasis is highly regulated ion and water transport through kidney or intestinal epithelia. In the present work, we monitored changes in the cell and luminal volumes of type II Madin-Darby canine kidney (MDCK) cells grown in a 3D environment in response to drugs, or to changes in the composition of the basal extracellular fluid. Using fluorescent markers and high-resolution spinning disc confocal microscopy, we could show that lack of sodium and potassium ions in the basal fluid (tetramethylammonium chloride (TMACl) buffer) induces a rapid increase in the cell and luminal volumes...
September 1, 2016: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/27901171/role-of-lewis-acid-additives-in-a-palladium-catalyzed-directed-c-h-functionalization-reaction-of-benzohydroxamic-acid-to-isoxazolone
#8
C Athira, Raghavan B Sunoj
Metallic salts as well as protic additives are widely employed in transition metal catalyzed C-H bond functionalization reactions to improve the efficiency of catalytic protocols. In one such example, ZnCl2 and pivalic acid are used as additives in a palladium catalyzed synthesis of isoxazolone from a readily available benzohydroxamic acid under one pot conditions. In this article, we present some important mechanistic insights into the role of ZnCl2 and pivalic acid, gained by using density functional theory (M06) computations...
November 30, 2016: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/27901015/laser-induced-phase-separation-of-silicon-carbide
#9
Insung Choi, Hu Young Jeong, Hyeyoung Shin, Gyeongwon Kang, Myunghwan Byun, Hyungjun Kim, Adrian M Chitu, James S Im, Rodney S Ruoff, Sung-Yool Choi, Keon Jae Lee
Understanding the phase separation mechanism of solid-state binary compounds induced by laser-material interaction is a challenge because of the complexity of the compound materials and short processing times. Here we present xenon chloride excimer laser-induced melt-mediated phase separation and surface reconstruction of single-crystal silicon carbide and study this process by high-resolution transmission electron microscopy and a time-resolved reflectance method. A single-pulse laser irradiation triggers melting of the silicon carbide surface, resulting in a phase separation into a disordered carbon layer with partially graphitic domains (∼2...
November 30, 2016: Nature Communications
https://www.readbyqxmd.com/read/27900807/highly-ortho-selective-chlorination-of-anilines-using-a-secondary-ammonium-salt-organocatalyst
#10
Xiaodong Xiong, Ying-Yeung Yeung
An organocatalytic, highly facile, efficient, and regioselective ortho-chlorination of anilines is described. A secondary ammonium chloride salt has been employed as the catalyst and the reaction can be conducted at room temperature without protection from air and moisture. In addition, the reaction is readily scalable and the catalyst can be recycled and reused. This catalytic protocol has been applied to the efficient synthesis of a highly potent c-Met kinase inhibitor. Mechanistic studies revealed that unique structural features of the secondary ammonium chloride salt are important for both the catalysis and regioselectivity of the electrophilic ortho-chlorination...
November 30, 2016: Angewandte Chemie
https://www.readbyqxmd.com/read/27900215/drug-treatment-of-bothersome-lower-urinary-tract-symptoms-after-ureteric-jj-stent-insertion-a-contemporary-comparative-prospective-randomised-placebo-controlled-study-single-centre-experience
#11
Ihab A Hekal
OBJECTIVE: To provide a guide for medication to alleviate bothersome lower urinary tract symptoms (LUTS) in patients after JJ ureteric stenting. PATIENTS AND METHODS: Between June 2011 and June 2015, a prospective randomised placebo-controlled study was conducted on 200 consecutive cases of ureteric stones that required JJ stents. All patients had signed informed consent and JJ-stent placement confirmed by X-ray. The patients were randomised into five groups: A, solifenacin 5 mg; B, trospium chloride 20 mg; C, antispasmodic; and E, α-blocker; and a placebo group (D)...
December 2016: Arab Journal of Urology
https://www.readbyqxmd.com/read/27899419/progressive-cl-channel-defects-reveal-disrupted-skeletal-muscle-maturation-in-r6-2-huntington-s-mice
#12
Daniel R Miranda, Monica Wong, Shannon H Romer, Cynthia McKee, Gabriela Garza-Vasquez, Alyssa C Medina, Volker Bahn, Andrew D Steele, Robert J Talmadge, Andrew A Voss
Huntington's disease (HD) patients suffer from progressive and debilitating motor dysfunction. Previously, we discovered reduced skeletal muscle chloride channel (ClC-1) currents, inwardly rectifying potassium (Kir) channel currents, and membrane capacitance in R6/2 transgenic HD mice. The ClC-1 loss-of-function correlated with increased aberrant mRNA processing and decreased levels of full-length ClC-1 mRNA (Clcn1 gene). Physiologically, the resulting muscle hyperexcitability may help explain involuntary contractions of HD...
November 29, 2016: Journal of General Physiology
https://www.readbyqxmd.com/read/27898888/effects-of-level-of-brackish-water-on-feed-intake-digestion-heat-energy-and-blood-constituents-of-growing-boer-and-spanish-goat-wethers
#13
Y Tsukahara, R Puchala, T Sahlu, A L Goetsch
Twenty Boer (6.1 mo old and 21.3 kg) and 20 Spanish (6.6 mo old and 19.7 kg) goat wethers were used to determine effects of brackish water on feed intake, digestion, heat energy, and blood constituents. Brackish water had 6,900 mg/L total dissolved salts, 1,885 mg/L Na, 75 mg/L Mg, 1,854 mg/L chloride, 2,478 mg/L sulfate, and 9 mg/L boron. Water treatments were 100% tap water (control), 100% of a brackish water source (100-BR), 33% control and 67% brackish water (67-BR), and 67% control and 33% brackish water (33-BR)...
September 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/27898846/rapid-communication-impact-of-contemporary-light-sources-on-oxidation-of-fresh-ground-beef
#14
J V Cooper, B R Wiegand, A B Koc, L Schumacher, I Grün, C L Lorenzen
Meat color is considered one of the driving factors in consumer purchasing decisions. The objective of this study was to determine the impact of 2 different lighting sources on color and lipid oxidation of ground beef patties in a controlled environment. USDA Select top rounds ( = 20) were processed to produce ground beef at 2 different fat levels (5 and 25%) and made into patties (113.4 g). Patties were packaged with oxygen permeable polyvinyl chloride, assigned to one of three lighting treatments (low UV fluorescent [FLO], light emitting diode [LED], and no light [DRK, negative control]), and placed within deli cases at 5°C...
October 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/27898787/zeolite-combined-with-alum-and-polyaluminum-chloride-mixed-with-agricultural-slurries-reduces-carbon-losses-in-runoff-from-grassed-soil-boxes
#15
J G Murnane, R B Brennan, O Fenton, M G Healy
Carbon (C) losses from agricultural soils to surface waters can migrate through water treatment plants and result in the formation of disinfection by-products, which are potentially harmful to human health. This study aimed to quantify total organic carbon (TOC) and total inorganic C losses in runoff after application of dairy slurry, pig slurry, or milk house wash water (MWW) to land and to mitigate these losses through coamendment of the slurries with zeolite (2.36-3.35 mm clinoptilolite) and liquid polyaluminum chloride (PAC) (10% AlO) for dairy and pig slurries or liquid aluminum sulfate (alum) (8% AlO) for MWW...
November 2016: Journal of Environmental Quality
https://www.readbyqxmd.com/read/27898524/uromodulin-in-kidney-health-and-disease
#16
Pranav S Garimella, Mark J Sarnak
PURPOSE OF REVIEW: Although uromodulin or Tamm-Horsfall protein was discovered over 60 years ago, its functional role in humans remains unclear. This review highlights new studies elucidating the clinical correlates of uromodulin, its association with kidney function decline, nephrolithiasis and urinary host defense. RECENT FINDINGS: Uromodulin is evolutionarily conserved and has multiple functional roles. In large population studies, higher levels of uromodulin are associated with higher estimated glomerular filtration rate (eGFR) and kidney size, possibly indicating greater kidney functional reserve...
November 24, 2016: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/27898330/catalytic-degradation-of-2-4-dichlorophenoxyacetic-acid-2-4-d-by-nano-fe2o3-activated-peroxymonosulfate-influential-factors-and-mechanism-determination
#17
Nematollah Jaafarzadeh, Farshid Ghanbari, Mehdi Ahmadi
2,4-Dichlorophenoxyacetic acid (2,4-D) is one of the most applicable herbicides in the world. Therefore, its residue in aquatic environment threatens the human health and ecosystems. In this study, Fe2O3 (hematite) nanoparticles (HNPs) were synthesized, and the characteristics of the obtained HNPs were determined using X-ray powder diffraction (XRD), field emission scanning electron microscopy (FESEM), Fourier transform infrared spectroscopy (FTIR), Brunauer-Emmett-Teller (BET) technique, and particle size analyzer (PSA)...
November 26, 2016: Chemosphere
https://www.readbyqxmd.com/read/27898234/lumacaftor-ivacaftor-treatment-of-patients-with-cystic-fibrosis-heterozygous-for-f508del-cftr
#18
Steven M Rowe, Susanna A McColley, Ernst Rietschel, Xiaolei Li, Scott C Bell, Michael W Konstan, Gautham Marigowda, David Waltz, Michael P Boyle
RATIONALE: Lumacaftor/ivacaftor treatment (≤28 days) in patients with cystic fibrosis (CF) heterozygous for F508del-CFTR did not improve lung function. OBJECTIVES: To evaluate an optimized lumacaftor/ivacaftor dosing regimen with longer duration in a cohort of patients heterozygous for F508del-CFTR. METHODS: Patients age ≥18 years with a confirmed CF diagnosis and percent predicted forced expiratory volume in 1 second (ppFEV1) of 40 to 90 were randomized to lumacaftor/ivacaftor (400 mg/250 mg every 12 hours) or placebo daily for 56 days...
November 29, 2016: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/27898012/hydrodechlorination-of-tetrachloromethane-over-palladium-catalysts-supported-on-mixed-mgf%C3%A2-mgo-carriers
#19
Magdalena Bonarowska, Maria Wojciechowska, Maciej Zieliński, Angelika Kiderys, Michał Zieliński, Piotr Winiarek, Zbigniew Karpiński
Pd/MgO, Pd/MgF₂ and Pd/MgO-MgF₂ catalysts were investigated in the reaction of CCl₄ hydrodechlorination. All the catalysts deactivated in time on stream, but the degree of deactivation varied from catalyst to catalyst. The MgF₂-supported palladium with relatively large metal particles appeared the best catalyst, characterized by good activity and selectivity to C₂-C₅ hydrocarbons. Investigation of post-reaction catalyst samples allowed to find several details associated with the working state of hydrodechlorination catalysts...
November 25, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27897225/calmodulin-interacts-with-rab3d-and-modulates-osteoclastic-bone-resorption
#20
Sipin Zhu, Shek Man Chim, Taksum Cheng, Estabelle Ang, Benjamin Ng, Baysie Lim, Kai Chen, Heng Qiu, Jennifer Tickner, Huazi Xu, Nathan Pavlos, Jiake Xu
Calmodulin is a highly versatile protein that regulates intracellular calcium homeostasis and is involved in a variety of cellular functions including cardiac excitability, synaptic plasticity and signaling transduction. During osteoclastic bone resorption, calmodulin has been reported to concentrate at the ruffled border membrane of osteoclasts where it is thought to modulate bone resorption activity in response to calcium. Here we report an interaction between calmodulin and Rab3D, a small exocytic GTPase and established regulator osteoclastic bone resorption...
November 29, 2016: Scientific Reports
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