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https://www.readbyqxmd.com/read/29145146/evaluation-of-anti-urolithiatic-and-diuretic-activities-of-watermelon-citrullus-lanatus-using-in-vivo-and-in-vitro-experiments
#1
Waqar Ahmed Siddiqui, Muhammad Shahzad, Arham Shabbir, Ali Ahmad
Traditionally, Citrullus lanatus is known to have protective properties in kidney diseases and for having the ability to clear urine. Current study aims to validate the traditional uses of C. lanatus by evaluation of anti-urolithiatic and diuretic activities using in vivo and in vitro experiments. Male Wistar rats were used for in vivo anti-urolithiatic and diuretic activities. Supersaturated solution of calcium and oxalate was used for in vitro crystallization study. Hematoxylin & eosin staining was used for histopathological evaluation of kidney...
November 11, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29140821/retarding-progression-of-chronic-kidney-disease-use-of-modalities-that-counter-acid-retention
#2
Jeffrey A Kraut, Nicolaos E Madias
PURPOSE OF REVIEW: Acid retention because of chronic kidney disease (CKD) increases tissue acidity and accelerates progression of CKD, whereas reduction in acid retention slows progression of CKD. Herein, we describe the mechanisms through which increased tissue acidity worsens CKD, modalities for countering acid retention and their impact on progression of CKD, and current recommendations for therapy. RECENT FINDINGS: Studies in animals and humans show that increased tissue acidity raises the renal levels of endothelin, angiotensin II, aldosterone, and ammoniagenesis, thereby worsening renal fibrosis and causing progression of CKD...
November 14, 2017: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/29140073/3-dimensional-enzyme-biohydrogel-electrode-for-improved-bioelectrocatalysis
#3
Ananta Ghimire, Ajith Pattammattel, Charles Maher, Rajeswari Kasi, Challa V Kumar
Higher loading of enzymes on electrode and efficient electron transfer from the enzyme to the electrode are urgently needed to enhance the current density of biofuel cells. The two-dimensional nature of electrode surface limits the enzyme loading on the surface and unfavorable interaction with electrode surfaces cause inactivation of the enzyme. Benign biohydrogels are designed here to address enzyme degradation and the three-dimensional nature of the biohydrogel enhanced the enzyme density per unit area. A general strategy is demonstrated here using a redox active enzyme glucose oxidase (GOx) embedded in bovine serum albumin (BSA) biohydrogel on flexible carbon cloth (CC) electrodes...
November 15, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29136799/ratiometric-fluorescence-and-visual-imaging-detection-of-dopamine-based-on-carbon-dots-copper-nanoclusters-dual-emitting-nanohybrids
#4
Weijie He, Rijun Gui, Hui Jin, Benqian Wang, Xiangning Bu, Yongxin Fu
In this article, blue-emitting carbon dots (CDs) were prepared via hydrothermal treatment of sodium citrate and NH4HCO3, and then combined with 3-aminophenylboronic acid (APBA) to prepare APBA modified-CDs. APBA acted as the receptor of dopamine (DA). Using bovine serum albumin (BSA) as a stabilizer and N2H4·H2O as a reducing reagent, BSA-stabilized and red-emitting copper nanoclusters (CuNCs) were prepared. By carbodiimide-activated coupling, novel nanohybrids consisting of CDs and CuNCs were constructed and exhibited dual-emitting fluorescence (FL)...
February 1, 2018: Talanta
https://www.readbyqxmd.com/read/29134768/determination-of-multiple-antibiotics-in-leafy-vegetables-using-quechers-uhplc-ms-ms
#5
Xiaolu Yu, Hang Liu, Chengjun Pu, Junhao Chen, Ying Sun, Lin Hu
A modified quick, easy, cheap, effective, rugged and safe method was established for simultaneous extraction and cleanup of multiple antibiotics in leafy vegetables, and ultra high performance liquid chromatography with tandem mass spectrometry was used for analysis. Antibiotics in leafy vegetables were extracted with citric acid/sodium citrate in mixed solvents consisting of acetonitrile/methanol (85:15 v/v) from 10 g of vegetables. Octadecylsilyl and graphitized carbon black were used as dispersant adsorbents...
November 14, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/29121597/rapid-synthesis-of-125-i-integrated-gold-nanoparticles-for-use-in-combined-neoplasm-imaging-and-targeted-radionuclide-therapy
#6
Ryan Clanton, Arnulfo Gonzalez, Sriram Shankar, Gamal Akabani
The selective delivery of radionuclides to tissues of interest remains a problematic task during treatment. The lack of tissue specificity for many therapeutics limit their efficacy by putting healthy organs and tissues at risk (e.g., side effects). Therefore, high specificity therapeutic strategies are needed to overcome these risks. The objective of this study was to use a modified citrate reduction technique to synthesize gold nanoparticles (AuNPs) containing (125)I in order to combine their unique therapeutic and diagnostic properties...
November 6, 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/29116334/fungal-denitrification-activity-in-vertical-flow-constructed-wetlands-as-impacted-by-plant-species-richness-carbon-nitrogen-and-ph-amendments
#7
W L Liu, C B Zhang, W J Han, M Guan, S Y Liu, Y Ge, J Chang
To control potential fungal denitrification rate (PFDR) in vertical flow simulated wetlands (VFSW) microcosms, thirty VFSW microcosms were established and planted with three plant species richness levels (i.e. unplanted, monoculture, and four-species polyculture treatment), and effects of carbon, nitrogen and pH amendments on the PFDR were investigated using a room-incubating method. Among seven carbon compounds, sodium citrate, glycerol, glucose and sodium succinate were more effective in enhancing PFDRs. These enhanced effects were dependant on a given species richness level...
November 7, 2017: Bulletin of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/29115645/combined-18f-fdg%C3%A2-pet-ct-imaging-and-a-gastric-orthotopic-xenograft-model-in-nude-mice-are-used-to-evaluate-the-efficacy-of-glycolysis-targeted-therapy
#8
Ting-An Wang, Shu-Lin Xian, Xing-Yu Guo, Xiao-Dong Zhang, Yun-Fei Lu
As discovered by Warburg 80 years ago most malignant cells rely more on glycolysis than normal cells. The high rate of glycolysis provides faster ATP production and greater lactic acid for tumor proliferation and invasion, thus indicating a potential target in anticancer therapy. Our previous studies demonstrated that 3-bromopyruvate (3-BrPA) and sodium citrate (SCT) inhibited tumor cell proliferation in vitro. However, the underlying mechanisms still warrant further investigation. In the present study, we employed the human SGC-7901 gastric cancer cell line, built an orthotopic xenograft model in nude mice, examined the treatment response by 18F-FDG PET/CT and investigated the mechanisms of 3-BrPA and SCT in vivo...
October 31, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29109826/application-of-environmental-scanning-electron-microscope-nanomanipulation-system-on-spheroplast-yeast-cells-surface-observation
#9
Maryam Alsadat Rad, Mohd Ridzuan Ahmad, Masahiro Nakajima, Seiji Kojima, Michio Homma, Toshio Fukuda
The preparation and observations of spheroplast W303 cells are described with Environmental Scanning Electron Microscope (ESEM). The spheroplasting conversion was successfully confirmed qualitatively, by the evaluation of the morphological change between the normal W303 cells and the spheroplast W303 cells, and quantitatively, by determining the spheroplast conversion percentage based on the OD800 absorbance data. From the optical microscope observations as expected, the normal cells had an oval shape whereas spheroplast cells resemble a spherical shape...
2017: Scanning
https://www.readbyqxmd.com/read/29102524/the-optimal-bowel-preparation-intervals-before-colonoscopy-a-randomized-study-comparing-polyethylene-glycol-and-low-volume-solutions
#10
Vladimir Kojecky, Jan Matous, Radan Keil, Milan Dastych, Zdena Zadorova, Michal Varga, Radek Kroupa, Jiri Dolina, Miroslav Misurec, Ales Hep, Martin Griva
BACKGROUND & AIMS: The optimal duration of bowel preparation has only been assessed for polyethylene glycol (PEG). The aim of the study was to determine the intervals for achieving a satisfactory quality/tolerability of the preparation using PEG/ascorbic acid (PEGA) and sodium picosulphate/magnesium citrate (SPMC), and to compare them with 4L of PEG. METHODS: A randomized, endoscopist-blinded, multicentre study. The 612 outpatients referred to a colonoscopy, were prepared using PEG, SPMC, PEGA...
November 1, 2017: Digestive and Liver Disease
https://www.readbyqxmd.com/read/29102357/effect-of-temperature-on-copper-iron-and-lead-leaching-from-e-waste-using-citrate-solutions
#11
Robinson Torres, Brenda Segura-Bailón, Gretchen T Lapidus
E-waste is a potential source of large quantities of metals. The ability of citrate solutions to recover base metals from these materials has been demonstrated. In the present study, the effect of the temperature on base metal leaching capacity by the citrate solutions is determined. The material employed consisted of a mechanically prepared, gravity concentrated e-waste, with a metallic content greater than 90%. The leaching conditions were selected based on previous research performed by the authors (0.5 M sodium citrate, pH 4...
October 25, 2017: Waste Management
https://www.readbyqxmd.com/read/29095693/reference-intervals-for-stone-risk-factors-in-24-h-urine-among-healthy-adults-of-the-han-population-in-china
#12
Zanlin Mai, Xiaoxia Li, Zelin Cui, Wenqi Wu, Yongda Liu, Lili Ou, Yueping Liang, Zhijian Zhao, Yang Liu, Xing Mai, Wei Zhu, Tao Zhang, Chao Cai, Houmeng Yang, Guohua Zeng
BACKGROUND: The aim of the study was to establish reference intervals for 24-h urinary stone risk factors in the healthy Chinese Han population. METHODS: From May 2013 to July 2014, we collected and analyzed 24-h urine samples from healthy adult Han population during a cross-sectional study across China. The protocol for analysis of 24-h urine included volume, pH, oxalate, citrate, sodium, potassium, chloride, calcium, phosphorous, creatinine, urate, magnesium, the ion activity products of calcium oxalate (AP(CaOx) indexs) and calcium phosphate (AP(CaP) indexs)...
November 2, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/29091584/fabrication-of-silver-nanostructures-using-femtosecond-laser-induced-photoreduction
#13
Peter Barton, Sanjoy Mukherjee, Jithin Prabha, Bryan Boudouris, Liang Pan, Xianfan Xu
Silver nanostructures were fabricated by femtosecond laser-induced reduction of silver ions and the impact of solution chemistry on the fabricated structures was evaluated. By investigating the exact photochemistry of the nanofabrication solutions, which contained varying amounts of diamine silver ions, trisodium citrate, and n-lauroylsarcosine sodium, and optimizing the laser processing parameters, we fabricated two-dimensional silver pads with surface roughness values of 7 nm and stable 2.5-dimensional shell structures with heights up to 10 µm and aspect ratios of 20 in a ready manner...
November 1, 2017: Nanotechnology
https://www.readbyqxmd.com/read/29054658/influence-of-organic-matter-nutrients-and-cyclodextrin-on-microbial-and-chemical-herbicide-and-degradate-dissipation-in-subsurface-sediment-slurries
#14
Kaisa Kerminen, Romain Le Moël, Vilhelmiina Harju, Merja H Kontro
Pesticides leaching from soil to surface and groundwater are a global threat for drinking water safety, as no cleaning methods occur for groundwater environment. We examined whether peat, compost-peat-sand (CPS) mixture, NH4NO3, NH4NO3 with sodium citrate (Na-citrate), and the surfactant methyl-β-cyclodextrin additions enhance atrazine, simazine, hexazinone, dichlobenil, and the degradate 2,6-dichlorobenzamide (BAM) dissipations in sediment slurries under aerobic and anaerobic conditions, with sterilized controls...
October 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29052087/does-green-tea-consumption-increase-urinary-oxalate-excretion-results-of-a-prospective-trial-in-healthy-men
#15
Kang Chen, Dong Chen, Chuangxin Lan, Xiongfa Liang, Tao Zeng, Jian Huang, Xiaolu Duan, Zhenzhen Kong, Shujue Li, Hans-Göran Tiselius, Alberto Gurioli, Xiaogang Lu, Guohua Zeng, Wenqi Wu
OBJECTIVE: To investigate the impact of green tea on urinary oxalate excretion in healthy male volunteers. MATERIALS AND METHODS: The oxalate concentrations after different brewing times (2-60 min) of different qualities (2-8 g) of green tea were measured in in vitro experiment. In in vivo experiment, the effects on urine composition were assessed in 12 healthy men with an age of 24-29 years. Each subject was requested to collect two 24-h urine samples under normal dietary conditions...
October 19, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/29050419/successful-chilling-of-red-legged-partridge-alectoris-rufa-sperm-for-use-in-artificial-insemination
#16
J Santiago-Moreno, C Castaño, A Toledano-Díaz, M C Esteso, A López-Sebastián, S Villaverde-Morcillo, S G Dávila, M G Gil, E Blesbois
The fertilizing capacity of pure, fresh avian semen may disappear in just half an hour, hindering its successful use in artificial insemination (AI) projects. Longer storage requires the use of infra-physiological temperatures and of semen diluents that help preserve the spermatozoa but that do not interfere with their fertilizing capacity. This study examines the effect on sperm quality of storing red-legged partridge sperm for 3 h at 5°C with 2 different semen extenders: 1) a medium referred to as L&R-84, composed of sodium glutamate, glucose, magnesium acetate, potassium acetate, and polyvinylpyrrolidone, and 2) Lake 7...
September 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/29049166/safety-of-potassium-bearing-citrate-in-patients-with-renal-transplantation-a-case-report
#17
Lin Wang, Yinglin Cui, Jianwei Zhang, Qinsheng Zhang
RATIONALE: Urinary lithiasis is one of severe postoperative complications in patients undergoing renal transplantation, possibly leading to anuria, urinary infection, or even acute renal failure. Potassium sodium hydrogen citrate (PSHC), a potassium-bearing citrate, is commonly prescribed to prevent stone formation. PATIENT CONCERNS: A 25-year-old man (patient 1) and a 31-year-old man (patient 2) receiving renal transplantation for end-stage renal disease (ESRD) were enrolled in this study...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29037139/analysis-of-free-amino-acids-in-mammalian-brain-extracts
#18
A L Ksenofontov, A I Boyko, G V Mkrtchyan, V N Tashlitsky, A V Timofeeva, A V Graf, V I Bunik, L A Baratova
An optimized method for analysis of free amino acids using a modified lithium-citrate buffer system with a Hitachi L-8800 amino acid analyzer is described. It demonstrates clear advantages over the sodium-citrate buffer system commonly used for the analysis of protein hydrolysates. A sample pretreatment technique for amino acid analysis of brain extracts is also discussed. The focus has been placed on the possibility of quantitative determination of the reduced form of glutathione (GSH) with simultaneous analysis of all other amino acids in brain extracts...
October 2017: Biochemistry. Biokhimii︠a︡
https://www.readbyqxmd.com/read/28968066/toxic-effects-and-molecular-mechanism-of-different-types-of-silver-nanoparticles-to-the-aquatic-crustacean-daphnia-magna
#19
Jing Hou, Yue Zhou, Chunjie Wang, Shiguo Li, Xiangke Wang
Silver nanoparticles (AgNPs) have been assessed to have a high exposure risk for humans and aquatic organisms. Toxicity varies considerably between different types of AgNPs. This study aimed to investigate the toxic effects of AgNPs with different particle sizes (40 and 110 nm) and different surface coatings (sodium citrate and polyvinylpyrrolidone, PVP) on Daphnia magna and their mechanisms of action. The results revealed that the citrate-coated AgNPs were more toxic than PVP-coated AgNPs and that the 40 nm AgNPs were more toxic than the 110 nm AgNPs...
November 7, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28963777/unveiling-the-biotransformation-mechanism-of-indole-in-a-cupriavidus-sp-strain
#20
Yuanyuan Qu, Qiao Ma, Ziyan Liu, Weiwei Wang, Hongzhi Tang, Jiti Zhou, Ping Xu
Indole, an important signaling molecule as well as a typical N-heterocyclic aromatic pollutant, is widespread in nature. However, the biotransformation mechanisms of indole are still poorly studied. Here, we sought to unlock the genetic determinants of indole biotransformation in strain Cupriavidus sp. SHE based on genomics, proteomics and functional studies. A total of 177 proteins were notably altered (118 up- and 59 downregulated) in cells grown in indole mineral salt medium when compared with that in sodium citrate medium...
September 30, 2017: Molecular Microbiology
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