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Sodium citrate

Soyoung Yeo, Hee Sung Shin, Hye Won Lee, Doseon Hong, Hyunjoon Park, Wilhelm Holzapfel, Eun Bae Kim, Chul Sung Huh
Beneficial effects of lactic acid bacteria (LAB) have been intensively investigated in recent decades with special focus on modulation of the host intestinal microbiota. Numerous discoveries of effective probiotics are driven by a significantly increasing demand for dietary supplements. Consequently, technological advances in the large-scale production and lyophilization are needed by probiotic-related industries for producing probiotic LAB for commercial use. Our study had a dual objective, i.e., to determine the optimum growth medium composition and to investigate appropriate cryoprotective additives (CPAs) for Lactobacillus salivarius , and compare its responses with other Lactobacillus species...
March 16, 2018: Journal of Microbiology and Biotechnology
Sultana Mehbuba Hossain, Ezharul Hoque Chowdhury
Biodegradable inorganic apatite-based particle complex is popular for its pH-sensitivity at the endosomal acidic environment to facilitate drug release following cellular uptake. Despite being a powerful anticancer drug, doxorubicin shows severe off-target effects and therefore would need a carrier for the highest effectiveness. We aimed to chemically modify carbonate apatite (CA) with Krebs cycle intermediates, such as citrate and succinate in order to control the growth of the resultant particles to more efficiently carry and transport the anticancer drug into the cancer cells...
March 11, 2018: Pharmaceutics
Guogang Jia
A new method has been developed for determination of210 Pb and a simultaneous determination of210 Po and210 Pb was performed in solid samples.210 Po and210 Pb were sequentially leached at 250 °C with HNO3 +HF, HClO4 and HCl. Twenty percent of the leaching solution was used for210 Po determination by α-spectrometry after210 Po spontaneous deposition on a silver disc from a weak HCl solution that containing hydroxylamine hydrochloride, sodium citrate and209 Po tracer. The remains of the leaching solution were used for determination of210 Pb, conducted by precipitation as PbCrO4 at about pH < 4, purification with an anion-exchange resin column, source preparation as PbSO4 , and measurement with a β-counter...
February 22, 2018: Applied Radiation and Isotopes
Z L Rai, H E Fowles, C Wright, H Joseph, A H Morice
INTRODUCTION: Citric acid has been used for over six decades to induce cough; however the mechanism of its pro-tussive effect is still not fully understood. We assessed the response to inhalation of citric acid at varying levels of acidity to determine if the pH of the solution plays a role in the induction of cough. Data was collected from both healthy volunteers and patients with chronic cough. METHODS: 20 chronic cough patients and 20 healthy volunteers were recruited and underwent three cough challenges on separate days...
March 6, 2018: Respiratory Physiology & Neurobiology
Liyu Peng, Lise Appels, Haijia Su
This study investigated the synergistic effect of sodium citrate (SC; Na3 C3 H5 O(COO)3 ) and microwave (MW) treatment on the efficiency of the anaerobic digestion of excess sewage sludge. In terms of the methane yield, an increase of the digestion's efficiency was observed. Taking into account the cost for the MW energy supplied to the system, the optimum treatment conditions were a MW energy input of 20 MJ/kg TS and a SC concentration of 0.11 g/g TS, obtaining a methane yield of 218.88 ml/g VS, i.e...
March 1, 2018: Journal of Environmental Management
Mohammad A Shafiee, Mehdi Aarabi, Pouyan Shaker, Amir M Ghafarian, Pouyan Chamanian, Mitchell L Halperin
PURPOSE: Intermittent fasting and curtailing water intake for extended periods of time was likely to be common in Paleolithic times. Nowadays, it occurs for religious and dietary reasons. This restriction in intake should cause a decrease in urine flow rate (UFR), while raising the concentrations of certain substances in the urine to the point of precipitation. In this study, we measured the risk of calcium phosphate (CaHPO4) precipitation following 18 hours of food and water deprivation...
March 1, 2018: Journal of Urology
Seung In Seo, Jin Gu Kang, Hyoung Su Kim, Myoung Kuk Jang, Hak Yang Kim, Woon Geon Shin
BACKGROUND/AIM: Previous studies comparing 2-L polyethylene glycol (PEG)-based solution with ascorbic acid (PEG/Asc) with sodium picosulfate/magnesium citrate (SP/MC) drew inconclusive results. This study aimed to compare a 2-L-PEG/Asc with SP/MC by split method in bowel cleansing efficacy, tolerability, and safety and to identify factors influencing inadequate bowel preparation. METHOD: We performed a prospective randomized, endoscopist-blinded, single-center, controlled trial...
March 1, 2018: International Journal of Colorectal Disease
Mingtang Li, Xingmin Zhao, Xiufang Zhang, Di Wu, Su Leng
Animal wastes are potential sources of natural and steroidal estrogen hormones into the environment. These hormones can be removed by microorganisms with induced enzymes. Two strains of 17β-estradiol-degrading bacteria (LM1 and LY1) were isolated from animal wastes. Based on biochemical characteristics and 16 S rDNA gene sequences, we identified strains LM1 and LY1 as belonging to the genus of Acinetobacter and Pseudomonas, respectively. Bacterial co-culture containing LM1 and LY1 bacterial strains could rapidly remove approximately 98% of E2 (5 mg L-1 ) within 7 days...
February 28, 2018: Scientific Reports
Andrew G Burton, Julie Burges, Angela Borchers, Kate Hopper
OBJECTIVE: Minimal data are available assessing the effect of acidemia on coagulation in dogs. The objective of this study was to assess the effect of in vitro acidification of canine blood on coagulation as measured via thromboelastography (TEG) and traditional tests of coagulation. We hypothesized that worsening acidemia would lead to progressive impairment on coagulation. DESIGN: Prospective study. SETTING: University teaching hospital...
February 27, 2018: Journal of Veterinary Emergency and Critical Care
Liangbao Yang, Borong Yu, Pan Li, Binbin Zhou, Xianghu Tang, Shaofei Li
A sodium chloride crystals-driven spontaneously hot spots structure was demonstrated as SERS-active platform to get reproducible SERS signals and eliminate the need for mapping large areas in comparison with solution phase. During the process of solvent evaporation, the crystals produced in colloids induced silver aggregates assemble around themselves. And the micro-scale crystals can act as the template to obtain optical position, such that the assembled hot area is conventionally located during SERS measurements...
February 26, 2018: Chemistry: a European Journal
Juliana Spezia, Priscila B Hermann, Samuel R Comar, Geraldo Picheth, Railson Henneberg, Shirley R R Utiyama
BACKGROUND: Mean platelet volume (MPV) is a parameter that evaluates the platelet size. Clinical applications of MPV are limited because of its poor standardization in routine laboratories. This study analyzed the effect of anticoagulants on MPV measurements by impedance technology. METHODS: Blood from 36 healthy volunteers was collected in vacuum tubes filled with K2EDTA and sodium citrate, analyzed immediately (basal) and at 1, 2, and 3 hours after venipuncture...
January 1, 2018: Clinical Laboratory
Giuseppe Lippi, Mads Nybo, Janne Cadamuro, Joao T Guimaraes, Edmée van Dongen-Lases, Ana-Maria Simundic
The measurement of fasting plasma glucose may be biased by a time-dependent decrease of glucose in blood tubes, mainly attributable to blood cell metabolism when glycolysis is not rapidly inhibited or blood cells cannot be rapidly separated from plasma. Although glycolysis inhibitors such as sodium fluoride (NaF) in combination with potassium oxalate (KOx) are currently used for overcoming this drawback, their efficacy for stabilizing blood glucose is seemingly limited, and probably lower than that of newer additives such as the citrate buffer...
2018: Advances in Clinical Chemistry
Marion L Chevallier, Myriel Cooper, Steffen Kümmel, Agnès Barbance, Denis Le Paslier, Hans Hermann Richnow, Pierre-Loïc Saaidi, Lorenz Adrian
Chlordecone is a synthetic organochlorine pesticide, extensively used in banana plantations of the French West Indies from 1972 to 1993. Due to its environmental persistence and bioaccumulation, it has dramatic public health and socio-economic impact. Here we describe a method for carbon-directed compound specific isotope analysis (CSIA) for chlordecone and apply it to monitor biotic and abiotic reductive transformation reactions, selected on the basis of their distinct product profiles (polychloroindenes versus lower chlorinated hydrochlordecones)...
February 23, 2018: Environmental Science & Technology
Tanvi M Deshpande, Anisul Quadir, Sakae Obara, Stephen W Hoag
Hydroxypropyl methylcellulose acetate succinate (HPMCAS) has been widely used in amorphous solid dispersions and as an enteric coating polymer. Under aqueous coating conditions and at elevated coating temperatures, HPMCAS particles tend to aggregate and clog the spray-nozzle, hence interrupting the coating process. This research focused on how plasticizers and surfactants, excipients used for aqueous coating, affect the properties and stability of HPMCAS. This information would be useful in identifying suitable excipients for developing a stable HPMCAS aqueous enteric coating formulation...
February 16, 2018: International Journal of Pharmaceutics
Ariani Widodo, Badriul Hegar, Yvan Vandenplas
AIM: To assess the knowledge of general pediatricians througout Indonesia about the diagnosis and treatment of childhood constipation. METHODS: A comprehensive questionnaire was distributed to general pediatricians from several teaching hospitals and government hospitals all over Indonesia. RESULTS: Data were obtained from 100 pediatricians, with a mean of 78.34 ± 18.00 mo clinical practice, from 20 cities throughout Indonesia. Suspicion of constipation in a child over 6 mo of age arises when the child presents with a decreased frequency of bowel movements (according to 87% of participants) with a mean of one bowel movement per 3...
February 8, 2018: World Journal of Clinical Pediatrics
Hanan B Ahmed, Hossam E Emam, Hamada M Mashaly, Mohamed Rehan
The current approach focuses on studying the leverage of nanosilver (AgNPs) incorporation on the dyeing process of viscose fibers by blue reactive dye. Nanosilver was straightway incorporated into viscose fibers using sodium citrate as nanogenerator. Owing to AgNPs incorporation, color of fibers was turned to greenish-blue and darker greenish color was observed with low Ag content (<1 g/kg). Regardless to the processes sequencing, color strength of fibers was magnified by increasing in Ag content. The constancy of fibers color was not affected by AgNPs inclusion, whatever the processes sequencing and Ag content...
April 15, 2018: Carbohydrate Polymers
Wenjea J Tseng, Yi-Chen Chuang
Bimetallic iron/silver (Fe/Ag) core/shell nanoparticles were prepared by chemical reduction from ferrous sulfate in the presence of sodium borohydride as a reducing agent in water, followed then by redox transmetalation with addition of silver nitrate (AgNO3) solution. When the reduction temperature was increased from room temperature to 85 °C, Fe nanoparticles with a reduced crystallite size ranging from 5.5 to 2.0 nm resulted. The particles changed from spherical to plate-like morphology as the temperature reached 85 °C...
April 1, 2018: Journal of Nanoscience and Nanotechnology
Kelcilene B R Teodoro, Rafaela C Sanfelice, Luiz H C Mattoso, Daniel S Correa
Cellulose, the main component of plant cell walls, is a biopolymer widely used for industrial applications, including, food, paper and textile fabrication. More recently, hybrid materials composed of cellulose nanostructures and metal nanoparticles have been applied in diverse areas such as medical and pharmaceutical applications. In this work, cellulose-silver nanoparticles (AgNPs) hybrid material was synthesized and the influence of cellulose, employed as a stabilizer agent, was investigated. Specifically, cellulose whiskers (CCW) were extracted from commercial cotton fibers by acid hydrolysis route, while the AgNPs were synthesized by reducing silver salt using sodium citrate and/or sodium borohydride in the presence of CCW...
July 1, 2018: Journal of Nanoscience and Nanotechnology
Jie-Jie Zhang, Xu Ding, Dan-Dan Liu, Jian-Ning Guan, Guo-Zhi Han
In this paper, we report a green and controllable synthetic method of gold nanoparticles (AuNPs) by directly β-CD reduction under mild conditions. Analysis of UV-vis spectra, along with TEM was applied to study the effects of experimental parameters on morphologies of the gold nanoparticles. The corresponding formation mechanism of the nanoparticles was evaluated by redox potential. In particular, compared with the traditional method of sodium citrate or ascorbic reduction, this method can facilely realize multi-dimensional regulation...
July 1, 2018: Journal of Nanoscience and Nanotechnology
Ganiyu Oboh, Sunday I Oyeleye, Omoyemi A Akintemi, Tosin A Olasehinde
There are strong correlations between diabetes mellitus and cognitive dysfunction. This study sought to investigate the modulatory effects of Moringa oleifera leaf (ML) and seed (MS) inclusive diets on biomolecules [acetylcholinesterase (AChE), butyrylcholinesterase (BChE)] angiotensin-I converting enzyme (ACE), arginase, catalase, glutathione transferase (GST) and glutathione peroxidase (GSH-Px) activities, glutathione (GSH) and nitric oxide (NO) levels] associated with cognitive function in the brain of streptozotocin (STZ)-induced diabetic rats treated with acarbose (ACA)...
February 12, 2018: Metabolic Brain Disease
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