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https://www.readbyqxmd.com/read/29138943/contaminants-of-emerging-concern-in-surface-waters-in-barbados-west-indies
#1
Quincy A Edwards, Sergei M Kulikov, Leah D Garner-O'Neale, Chris D Metcalfe, Tamanna Sultana
Contaminants of emerging concern (CECs), including pharmaceuticals, artificial sweeteners, steroid hormones, and current-use pesticides have been detected in surface waters around the world, but to date, there have been no reports in the peer-reviewed literature on the levels of these classes of contaminants in freshwater resources in the Caribbean region. In the present study, multi-residue solid phase extraction (SPE) and liquid chromatography with tandem mass spectroscopy (LC-MS/MS) were used to analyze grab samples of surface waters collected from five different watersheds in Barbados, West Indies...
November 14, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29132732/the-role-of-artificial-and-natural-sweeteners-in-reducing-the-consumption-of-table-sugar-a-narrative-review
#2
REVIEW
Arshag D Mooradian, Meridith Smith, Masaaki Tokuda
The rapid increase in the prevalence of obesity worldwide has been partially attributed to the overconsumption of added sugars. Recent guidelines call for limiting the consumption of simple sugars to less than 10% of daily caloric consumption. High intensity sweeteners are regulated as food additives and include aspartame, acesulfame-k, neotame, saccharin, sucralose, cyclamate and alitame. Steviol glycosides and Luo Han Guo fruit extracts are high intensity sweeteners that are designated as generally recognized as safe (GRAS)...
April 2017: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/29130464/boronic-acid-recognition-of-non-interacting-carbohydrates-for-biomedical-applications-increasing-fluorescence-signals-of-minimally-interacting-aldoses-and-sucralose
#3
Angel Resendez, Md Abdul Halim, Jasmeet Singh, Dominic-Luc Webb, Bakthan Singaram
To address carbohydrates that are commonly used in biomedical applications with low binding affinities for boronic acid based detection systems, two chemical modification methods were utilized to increase sensitivity. Modified carbohydrates were analyzed using a two component fluorescent probe based on boronic acid-appended viologen-HPTS (4,4'-o-BBV). Carbohydrates normally giving poor signals (fucose, l-rhamnose, xylose) were subjected to sodium borohydride (NaBH4) reduction in ambient conditions for 1 h yielding the corresponding sugar alcohols from fucose, l-rhamnose and xylose in essentially quantitative yields...
November 13, 2017: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/29129950/response-to-letter-to-the-editor-regarding-sylvetsky-et-al-2017-plasma-concentrations-of-sucralose-in-children-and-adults
#4
COMMENT
Allison C Meni Sylvetsky, Kristina I Rother
No abstract text is available yet for this article.
2017: Toxicological and Environmental Chemistry
https://www.readbyqxmd.com/read/29127847/effect-of-sucralose-on-the-enzyme-kinetics-of-invertase-using-real-time-nmr-spectroscopy-and-progress-curve-analysis
#5
Cheenou Her, Jaideep Singh, V V Krishnan
Sucralose, a derivative of sucrose, is widely used in noncaloric artificial sweeteners (NAS). Contrary to the belief that sucralose is physiologically inert and a healthy alternative sweetener to natural sugar, emerging studies indicate that sucralose alters the host metabolism as well as the composition of the microbiome. In this manuscript, we use real-time nuclear magnetic resonance (NMR) spectroscopy to demonstrate that sucralose alters the enzymatic conversion of sucrose to glucose and fructose. The real-time NMR progress curve analysis suggests that sucralose has the characteristic of a competitive inhibitor on the kinetics of the enzymatic process...
October 31, 2017: Carbohydrate Research
https://www.readbyqxmd.com/read/29126998/high-runner-mice-have-reduced-incentive-salience-for-a-sweet-taste-reward-when-housed-with-wheel-access
#6
Zoe Thompson, Erik M Kolb, Theodore Garland
To explore reward substitution in the context of voluntary exercise, female mice from four replicate high-runner (HR) lines (bred for wheel running) and four non-selected control (C) lines were given simultaneous access to wheels and palatable solutions as competing rewards (two doses of saccharin [0.1, 0.2% w/v]; two doses of common artificial sweetener blends containing saccharin [Sweet 'N Low(®): 0.1, 0.2% w/v], aspartame [Equal(®): 0.04, 0.08% w/v], or sucralose [Splenda(®): 0.08, 0.16% w/v]; or two doses of sucrose [3...
November 7, 2017: Behavioural Processes
https://www.readbyqxmd.com/read/29108962/no-detriment-in-taste-response-or-expression-in-offspring-of-mice-fed-representative-levels-of-sucrose-or-non-caloric-sucralose-while-pregnant
#7
Ezen Choo, Robin Dando
Recent studies in mice indicate that consumption of acesulfame K (a high intensity sweetener) while pregnant, can lead to deficits in taste or enhanced sweet consumption in the offspring, leading to concerns the same may be common in human populations. However, this work employed a relatively unpopular sweetener, fed in quantities amounting to over 20× the FDA's Acceptable Daily Intake (ADI). The aims of this study were to test the effects of sucralose, the USA's most popular high intensity sweetener, along with sucrose, on the taste system of the offspring of mice supplemented at a level commensurate with ADIs while pregnant...
November 3, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/29089128/pharmaceuticals-and-personal-care-products-ppcps-and-artificial-sweeteners-ass-in-surface-and-ground-waters-and-their-application-as-indication-of-wastewater-contamination
#8
Yuan-Yuan Yang, Jian-Liang Zhao, You-Sheng Liu, Wang-Rong Liu, Qian-Qian Zhang, Li Yao, Li-Xin Hu, Jin-Na Zhang, Yu-Xia Jiang, Guang-Guo Ying
We systematically investigated the occurrence and distribution of 93 pharmaceuticals and personal care products (PPCPs) and 5 artificial sweeteners (ASs) in surface water and groundwater of Dongjiang River basin in south China. In surface water, 52 compounds were detected with median concentrations ranging from 0.06ng/L to 504ng/L, while in groundwater, 33 compounds were detected with concentrations up to 4580ng/L for acesulfame. PPCPs and ASs were widely detected in the surface water and groundwater samples, which indicated contamination by domestic wastewater in the surface water and groundwater of Dongjiang River basin...
October 28, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29077645/pharmacokinetics-of-sucralose-and-acesulfame-potassium-in-breast-milk-following-ingestion-of-diet-soda
#9
Kristina I Rother, Allison C Sylvetsky, Peter J Walter, H Martin Garraffo, David A Fields
OBJECTIVE: To determine sucralose and acesulfame-K pharmacokinetics in breast milk following maternal ingestion of a diet soda. METHODS: Thirty-four exclusively breastfeeding women (14 normal weight, 20 obese) consumed twelve ounces of Diet Rite Cola™, sweetened with 68 mg sucralose and 41 mg acesulfame-potassium, prior to a standardized breakfast meal. Habitual LCS intake was assessed via a diet questionnaire. Breast milk was collected from the same breast prior to beverage ingestion and hourly for six hours...
October 27, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/29074484/diurnal-variations-in-intestinal-barrier-integrity-and-liver-pathology-in-mice-implications-for-alcohol-binge
#10
Robin M Voigt, Christopher B Forsyth, Maliha Shaikh, Lijuan Zhang, Shohreh Raeisi, Costica Aloman, Nailliw Zanini Preite, Terrence M Donohue, Louis F Fogg, Ali Keshavarzian
Recent studies suggest that circadian rhythms regulate intestinal barrier integrity but it is not clear whether there are daily variations in barrier integrity. This study investigated daily variations in intestinal barrier integrity, including if there are differences in alcohol-induced intestinal barrier dysfunction after an alcohol binge at different times of day and if this is associated with concurrent liver injury. C57BL6/J male mice were fed a standard chow diet, an alcohol-containing liquid diet, or an alcohol control diet for four weeks...
October 26, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/29074082/pullulan-based-oral-thin-film-formulation-of-zolmitriptan-development-and-optimization-using-factorial-design
#11
Vipul D Prajapati, Anita M Chaudhari, Abhishek K Gandhi, Pankaj Maheriya
The goal of study was to formulate and characterize pullulan based oral thin film (OTF) of zolmitriptan by solvent casting method. Based on preliminary trials, glass, PEG 400 and sucralose were selected as casting surface, water-miscible plasticizer and sweetener for OTF, respectively. A 3(2) factorial design was used to study the effect of amount of PEG 400 (X1) and sucralose (X2) as independent variables on tensile strength (Y1), elasticity (Y2), % in-vitro drug release in phosphate buffer of pH 6.8 at 5min (Q5min, Y3) and overall taste of OTF (Y4) as responses...
October 23, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28971978/activation-of-the-sweet-taste-receptor-t1r3-by-the-artificial-sweetener-sucralose-regulates-the-pulmonary-endothelium
#12
Elizabeth O Harrington, Alexander Vang, Julie Braza, Aparna Shil, Havovi Chichger
A hallmark of acute respiratory distress syndrome (ARDS) is pulmonary vascular permeability. In these settings, loss of barrier integrity is mediated by cell-contact disassembly and actin-remodelling. Studies into molecular mechanisms responsible for improving microvascular barrier function are therefore vital in the development of therapeutic targets for reducing vascular permeability in ARDS. The sweet taste receptor, T1R3 is a GPCR, activated following exposure to sweet molecules, to trigger a gustducin-dependent signal cascade...
September 28, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28968411/the-effect-of-sucralose-on-flavor-sweetness-in-electronic-cigarettes-varies-between-delivery-devices
#13
Kathryn Rosbrook, Hanno C Erythropel, Tamara M DeWinter, Mark Falinski, Stephanie O'Malley, Suchitra Krishnan-Sarin, Paul T Anastas, Julie B Zimmerman, Barry G Green
The appeal of sweet electronic cigarette flavors makes it important to identify the chemical compounds that contribute to their sweetness. While volatile chemicals that produce sweet aromas have been identified in e-liquids, there are no published reports of sugars or artificial sweeteners in commercial e-liquids. However, the sweetener sucralose is marketed as an e-liquid additive to commercial flavors. The primary aims of the study were to determine if sucralose is delivered in sufficient concentration in the inhaled aerosol to enhance flavor sweetness, and whether the amount delivered depends on the e-liquid delivery system...
2017: PloS One
https://www.readbyqxmd.com/read/28912088/sip-and-spit-or-sip-and-swallow-choice-of-method-differentially-alters-taste-intensity-estimates-across-stimuli
#14
Cordelia A Running, John E Hayes
While the myth of the tongue map has been consistently and repeatedly debunked in controlled studies, evidence for regional differences in suprathreshold intensity has been noted by multiple research groups. Given differences in physiology between the anterior and posterior tongue (fungiform versus foliate and circumvallate papillae) and differences in total area stimulated (anterior only versus whole tongue, pharynx, and epiglottis), small methodological changes (sip and spit versus sip and swallow) have the potential to substantially influence data...
November 1, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28899680/the-cephalic-phase-insulin-response-to-nutritive-and-low-calorie-sweeteners-in-solid-and-beverage-form
#15
Jaapna Dhillon, Janice Y Lee, Richard D Mattes
The purpose of the study was to examine the role of the cephalic phase insulin response (CPIR) following exposure to nutritive and low-calorie sweeteners in solid and beverage form in overweight and obese adults. In addition, the role of learning on the CPIR to nutritive and low-calorie sweetener exposure was tested. Sixty-four overweight and obese adults (age: 18-50years, BMI: 24-37kg/m(2), body fat percentage>25% for men and >32% for women) were sham-fed (at 2-minute intervals for 14min) a randomly assigned test load comprised of a nutritive (sucrose) or low-calorie sweetener (sucralose) in beverage or solid form in phase 1 of the study...
November 1, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28817633/fat-storage-in-drosophila-suzukii-is-influenced-by-different-dietary-sugars-in-relation-to-their-palatability
#16
Maurizio Biolchini, Elisabetta Murru, Gianfranco Anfora, Francesco Loy, Sebastiano Banni, Roberto Crnjar, Giorgia Sollai
The peripheral sensitivity and palatability of different carbohydrates was evaluated and their nutritional value assessed in adult females of D. suzukii by means of an electrophysiological, behavioural and metabolic approach. The electrophysiological responses were recorded from the labellar "l" type sensilla stimulated with metabolizable mono- and disaccharides (glucose and maltose) and a non-metabolizable sugar (sucralose); the response rating and the palatability to the same sugars, evaluated by recording the proboscis extension reflex (PER), was maltose>glucose>sucralose...
2017: PloS One
https://www.readbyqxmd.com/read/28803868/integration-of-sweet-taste-and-metabolism-determines-carbohydrate-reward
#17
Maria Geraldine Veldhuizen, Richard Keith Babbs, Barkha Patel, Wambura Fobbs, Nils B Kroemer, Elizabeth Garcia, Martin R Yeomans, Dana M Small
Post-ingestive signals related to nutrient metabolism are thought to be the primary drivers of reinforcement potency of energy sources. Here, in a series of neuroimaging and indirect calorimetry human studies, we examine the relative roles of caloric load and perceived sweetness in driving metabolic, perceptual, and brain responses to sugared beverages. Whereas caloric load was manipulated using the tasteless carbohydrate maltodextrin, sweetness levels were manipulated using the non-nutritive sweetener sucralose...
August 21, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28790923/gut-microbiome-response-to-sucralose-and-its-potential-role-in-inducing-liver-inflammation-in-mice
#18
Xiaoming Bian, Liang Chi, Bei Gao, Pengcheng Tu, Hongyu Ru, Kun Lu
Sucralose is the most widely used artificial sweetener, and its health effects have been highly debated over the years. In particular, previous studies have shown that sucralose consumption can alter the gut microbiota. The gut microbiome plays a key role in processes related to host health, such as food digestion and fermentation, immune cell development, and enteric nervous system regulation. Inflammation is one of the most common effects associated with gut microbiome dysbiosis, which has been linked to a series of human diseases, such as diabetes and obesity...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28783915/comparison-of-pocis-passive-samplers-vs-composite-water-sampling-a-case-study
#19
Justine Criquet, David Dumoulin, Michael Howsam, Leslie Mondamert, Jean-François Goossens, Jean Prygiel, Gabriel Billon
The relevance of Polar Organic Chemical Integrative Samplers (POCIS) was evaluated for the assessment of concentrations of 46 pesticides and 19 pharmaceuticals in a small, peri-urban river with multi-origin inputs. Throughout the period of POCIS deployment, 24h-average water samples were collected automatically, and showed the rapid temporal evolution of concentrations of several micropollutants, as well as permitting the calculation of average concentrations in the water phase for comparison with those estimated from POCIS passive samplers...
December 31, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28782989/longitudinal-modelling-of-the-exposure-of-young-uk-patients-with-pku-to-acesulfame-k-and-sucralose
#20
Aaron J O'Sullivan, Sandrine Pigat, Cian O'Mahony, Michael J Gibney, Aideen I McKevitt
Artificial sweeteners are used in protein substitutes intended for the dietary management of inborn errors of metabolism (phenylketonuria, PKU) to improve the variety of medical foods available to patients and ensure dietary adherence to the prescribed course of dietary management. These patients can be exposed to artificial sweeteners from the combination of free and prescribed foods. Young children have a higher risk of exceeding acceptable daily intakes (ADI) for additives than adults, due to higher food intakes per kg body weight...
November 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
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