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https://www.readbyqxmd.com/read/28919842/international-society-of-sports-nutrition-position-stand-nutrient-timing
#1
REVIEW
Chad M Kerksick, Shawn Arent, Brad J Schoenfeld, Jeffrey R Stout, Bill Campbell, Colin D Wilborn, Lem Taylor, Doug Kalman, Abbie E Smith-Ryan, Richard B Kreider, Darryn Willoughby, Paul J Arciero, Trisha A VanDusseldorp, Michael J Ormsbee, Robert Wildman, Mike Greenwood, Tim N Ziegenfuss, Alan A Aragon, Jose Antonio
The International Society of Sports Nutrition (ISSN) provides an objective and critical review regarding the timing of macronutrients in reference to healthy, exercising adults and in particular highly trained individuals on exercise performance and body composition. The following points summarize the position of the ISSN:Nutrient timing incorporates the use of methodical planning and eating of whole foods, fortified foods and dietary supplements. The timing of energy intake and the ratio of certain ingested macronutrients may enhance recovery and tissue repair, augment muscle protein synthesis (MPS), and improve mood states following high-volume or intense exercise...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28918319/determination-of-chlorogenic-acids-and-caffeine-in-homemade-brewed-coffee-prepared-under-various-conditions
#2
Jong-Sup Jeon, Han-Taek Kim, Il-Hyung Jeong, Se-Ra Hong, Moon-Seog Oh, Kwang-Hee Park, Jae-Han Shim, A M Abd El-Aty
Coffee, a complex mixture of more than 800 volatile compounds, is one of the most valuable commodity in the world, whereas caffeine and chlorogenic acids (CGAs) are the most common compounds. CGAs are mainly composed of caffeoylquinic acids (CQAs), dicaffeoylquinic acids (diCQAs), and feruloylquinic acids (FQAs). The major CGAs in coffee are neochlorogenic acid (3-CQA), cryptochlorogenic acid (4-CQA), and chlorogenic acid (5-CQA). Many studies have shown that it is possible to separate the isomers of FQAs by high-performance liquid chromatography (HPLC)...
August 31, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28918314/empirical-research-evaluating-the-effects-of-non-traditional-approaches-to-enhancing-sleep-in-typical-and-clinical-children-and%C3%A2-young-people
#3
REVIEW
Karyn G France, Laurie K McLay, Jolene E Hunter, Madeline L S France
This paper examines the effects of non-traditional (non-behavioural and non-prescription pharmaceutical) approaches to sleep in children and young people (0-18 y). A systematic search identified 79 studies that met inclusion criteria. Seventeen percent of the studies were rated as having a conclusive level of evidence, forty-two percent with preponderant evidence and forty-one percent with only suggestive evidence. There were promising indications, with certain populations only, for aromatherapy, ketogenic diets, an elimination diet (few foods diet), elimination of cow's milk, avoidance of caffeine, tryptophan with adenosine and uridine, omega-3 and omega-6, valerian, music, osteopathic manipulation and white noise...
July 29, 2017: Sleep Medicine Reviews
https://www.readbyqxmd.com/read/28918222/vision-assessments-and-interventions-for-infants-0-2-years-at-high-risk-for-cerebral-palsy-a-systematic-review
#4
REVIEW
Olena D Chorna, Andrea Guzzetta, Nathalie L Maitre
We performed a systematic review and evaluated the level of evidence of vision interventions and assessments for infants at high risk for or with a diagnosis of cerebral palsy from 0 to 2 years of age. Articles were evaluated based on the level of methodologic quality, evidence, and clinical utilization. Thirty publications of vision assessments and five of vision interventions met criteria for inclusion. Assessments included standard care neuroimaging, electrophysiology, and neuro-ophthalmologic examination techniques that are utilized clinically with any preverbal or nonverbal pediatric patient...
July 20, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/28917947/effect-of-meal-glycemic-load-and-caffeine-consumption-on-prolonged-monotonous-driving-performance
#5
Christopher Bragg, Ben Desbrow, Susan Hall, Christopher Irwin
OBJECTIVE: Monotonous driving involves low levels of stimulation and high levels of repetition and is essentially an exercise in sustained attention and vigilance. The aim of this study was to determine the effects of consuming a high or low glycemic load meal on prolonged monotonous driving performance. The effect of consuming caffeine with a high glycemic load meal was also examined. METHOD: Ten healthy, non-diabetic participants (7 males, age 51±7yrs, mean±SD) completed a repeated measures investigation involving 3 experimental trials...
September 13, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28915479/effect-of-design-and-operational-conditions-on-the-performance-of-subsurface-flow-treatment-wetlands-emerging-organic-contaminants-as-indicators
#6
Stefanie Kahl, Jaime Nivala, Manfred van Afferden, Roland A Müller, Thorsten Reemtsma
Six pilot-scale subsurface flow treatment wetlands loaded with primary treated municipal wastewater were monitored over one year for classical wastewater parameters and a set of emerging organic compounds (EOCs) serving as process indicators for biodegradation: caffeine, ibuprofen, naproxen, benzotriazole, diclofenac, acesulfame, and carbamazepine. The wetland technologies investigated included conventional horizontal flow, unsaturated vertical flow (single and two-stage), horizontal flow with aeration, vertical flow with aeration, and reciprocating...
September 5, 2017: Water Research
https://www.readbyqxmd.com/read/28913969/spray-inlet-microwave-plasma-torch-ionization-tandem-mass-spectrometry-for-the-direct-detection-of-drug-samples-in-liquid-solutions
#7
Meng Miao, Gaosheng Zhao, Yaliang Wang, Li Xu, Junguo Dong, Ping Cheng
RATIONALE: Drug abuse or dependence results in a series of social problems, including crime and traffic accidents. Spray inlet microwave plasma torch tandem mass spectrometry (MPT-MS/MS) was developed and used for the direct detection of such drugs in liquid solutions. METHODS: Drug sample solutions were directly sprayed into the flame of MPT by a sampling pump and the ions produced by Penning ionization and ion-molecule reactions were guided into a QTOF tandem mass spectrometer for mass analysis...
September 14, 2017: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/28913843/food-and-functional-dyspepsia-a-systematic-review
#8
REVIEW
K R Duncanson, N J Talley, M M Walker, T L Burrows
BACKGROUND: Functional dyspepsia (FD) is a debilitating functional gastrointestinal disorder characterised by early satiety, post-prandial fullness or epigastric pain related to meals, which affects up to 20% of western populations. A high dietary fat intake has been linked to FD and duodenal eosinophilia has been noted in FD. We hypothesised that an allergen such as wheat is a risk factor for FD and that withdrawal will improve symptoms of FD. We aimed to investigate the relationship between food and functional dyspepsia...
September 15, 2017: Journal of Human Nutrition and Dietetics: the Official Journal of the British Dietetic Association
https://www.readbyqxmd.com/read/28913331/health-effects-and-public-health-concerns-of-energy-drink-consumption-in-the-united-states-a-mini-review
#9
REVIEW
Laila Al-Shaar, Kelsey Vercammen, Chang Lu, Scott Richardson, Martha Tamez, Josiemer Mattei
As energy drink consumption continues to grow worldwide and within the United States, it is important to critically examine the nutritional content and effects on population health of these beverages. This mini-review summarizes the current scientific evidence on health consequences from energy drink consumption, presents relevant public health challenges, and proposes recommendations to mitigate these issues. Emerging evidence has linked energy drink consumption with a number of negative health consequences such as risk-seeking behaviors, poor mental health, adverse cardiovascular effects, and metabolic, renal, or dental conditions...
2017: Frontiers in Public Health
https://www.readbyqxmd.com/read/28912486/the-homologous-recombination-machinery-orchestrates-post-replication-dna-repair-during-self-renewal-of-mouse-embryonic-stem-cells
#10
Eui-Hwan Choi, Seobin Yoon, Kyung-Soon Park, Keun P Kim
Embryonic stem (ES) cells require homologous recombination (HR) to cope with genomic instability caused during self-renewal. Here, we report expression dynamics and localization of endogenous HR factors in DNA break repair of ES cells. In addition, we analyzed gene expression patterns of HR-related factors at the transcript level with RNA-sequencing experiments. We showed that ES cells constitutively expressed diverse HR proteins throughout the cell cycle and that HR protein expression was not significantly changed even in the DNA damaging conditions...
September 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28911669/simultaneous-determination-of-ascorbic-acid-and-caffeine-in-commercial-soft-drinks-using-reversed-phase-ultraperformance-liquid-chromatography
#11
Fatma Turak, Remziye Güzel, Erdal Dinç
A new reversed-phase ultraperformance liquid chromatography method with a photodiode array detector was developed for the quantification of ascorbic acid (AA) and caffeine (CAF) in 11 different commercial drinks consisting of one energy drink and 10 ice tea drinks. Separation of the analyzed AA and CAF with an internal standard, caffeic acid, was performed on a Waters BEH C18 column (100 mm × 2.1 mm, 1.7 μm i.d.), using a mobile phase consisting of acetonitrile and 0.2M H3PO4 (11:89, v/v) with a flow rate of 0...
April 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28911622/sedative-and-hypnotic-effects-of-supercritical-carbon-dioxide-fluid-extraction-from-schisandra-chinensis-in-mice
#12
Hongyan Zhu, Lina Zhang, Guoli Wang, Zhongmei He, Yan Zhao, Yonghua Xu, Yugang Gao, Lianxue Zhang
Schisandra chinensis is a traditional Chinese medicine that has been used for treating insomnia and neurasthenia for centuries. Lignans, which are considered to be the bioactive components, are apt to be extracted by supercritical carbon dioxide. This study was conducted to investigate the sedative and hypnotic activities of the supercritical carbon dioxide fluid extraction of S. chinensis (SFES) in mice and the possible mechanisms. SFES exhibited an obvious sedative effect on shortening the locomotor activity in mice in a dose-dependent (10-200 mg/kg) manner...
October 2016: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28911607/certification-of-caffeine-reference-material-purity-by-ultraviolet-visible-spectrophotometry-and-high-performance-liquid-chromatography-with-diode-array-detection-as-two-independent-analytical-methods
#13
REVIEW
A B Shehata, M S Rizk, E A Rend
Caffeine reference material certified for purity is produced worldwide, but no research work on the details of the certification process has been published in the literature. In this paper, we report the scientific details of the preparation and certification of pure caffeine reference materials. Caffeine was prepared by extraction from roasted and ground coffee by dichloromethane after heating in deionized water mixed with magnesium oxide. The extract was purified, dried, and bottled in dark glass vials. Stratified random selection was applied to select a number of vials for homogeneity and stability studies, which revealed that the prepared reference material is homogeneous and sufficiently stable...
October 2016: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28910962/pharmaceuticals-and-other-anthropogenic-chemicals-in-atmospheric-particulates-and-precipitation
#14
Mark L Ferrey, M Coreen Hamilton, Will J Backe, Kurt E Anderson
Air and precipitation samples were analyzed by liquid chromatography tandem mass spectrometry (LC-MS/MS) and gas chromatography mass spectrometry (GC-MS) for pharmaceuticals, personal care products, and other commercial chemicals within the St. Paul/Minneapolis metropolitan area of Minnesota, U.S. Of the 126 chemicals analyzed, 17 were detected at least once. Bisphenol A, N,N-diethyl-meta-toluamide (DEET), and cocaine were the most frequently detected; their maximum concentrations in snow were 3.80, 9.49, and 0...
September 10, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28910581/aminoacyl-trna-quality-control-is-required-for-efficient-activation-of-the-tor-pathway-regulator-gln3p
#15
Kyle Mohler, Rebecca Mann, Amanda Kyle, Noah Reynolds, Michael Ibba
The aminoacylation status of the cellular tRNA pool regulates both general amino acid control (GAAC) and target of rapamycin (TOR) stress response pathways in yeast. Consequently, fidelity of translation at the level of aminoacyl-tRNA synthesis plays a central role in determining accuracy and sensitivity of stress responses. To investigate effects of translational quality control (QC) on cell physiology under stress conditions, phenotypic microarray analyses were used to identify changes in QC deficient cells...
September 14, 2017: RNA Biology
https://www.readbyqxmd.com/read/28910196/effect-of-alpinia-galanga-on-mental-alertness-and-sustained-attention-with-or-without-caffeine-a-randomized-placebo-controlled-study
#16
Shalini Srivastava, Mark Mennemeier, Surekha Pimple
OBJECTIVE: Although Alpinia galanga has been reported to improve cognitive performance in animals, it has not been thoroughly studied for its potential psychostimulant effect in humans. A randomized, double-dummy, double-blind, placebo-controlled cross-over study was conducted to determine the effect of A galanga on mental alertness and sustained attention in comparison with caffeine and placebo in participants with a habitual caffeine intake. METHODS: Fifty-nine participants (18-40 years and body mass index of ≥18...
September 14, 2017: Journal of the American College of Nutrition
https://www.readbyqxmd.com/read/28904364/acute-doses-of-caffeine-shift-nervous-system-cell-expression-profiles-toward-promotion-of-neuronal-projection-growth
#17
Nancy Y Yu, Andrea Bieder, Amitha Raman, Enrichetta Mileti, Shintaro Katayama, Elisabet Einarsdottir, Bertil B Fredholm, Anna Falk, Isabel Tapia-Páez, Carsten O Daub, Juha Kere
Caffeine is a widely consumed psychoactive substance, but little is known about the effects of caffeine stimulation on global gene expression changes in neurons. Here, we conducted gene expression profiling of human neuroepithelial stem cell-derived neurons, stimulated with normal consumption levels of caffeine (3 μM and 10 μM), over a period of 9 h. We found dosage-dependent activation of immediate early genes after 1 h. Neuronal projection development processes were up-regulated and negative regulation of axon extension processes were down-regulated at 3 h...
September 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28903089/simultaneous-determination-of-pentoxifylline-metabolites-m1-lisofylline-m4-and-m5-and-caffeine-in-plasma-and-dried-blood-spots-for-pharmacokinetic-studies-in-preterm-infants-and-neonates
#18
Madhu Page-Sharp, Tobias Strunk, Sam Salman, Julie Hibbert, Sanjay K Patole, Laurens Manning, Kevin T Batty
Advances in bioanalytical methods are facilitating micro-volume and dried blood spot (DBS) analysis of drugs in biological matrices for pharmacokinetic studies in children and neonates. We sought to develop a UPLC-MS/MS assay for simultaneous measurement of caffeine, pentoxifylline (PTX) and three metabolites of PTX in both plasma and DBS. Caffeine, PTX, the metabolites M1 (lisofylline), M4 and M5, and the internal standards (caffeine-d9 and PTX-d6) were separated using a Waters Aquity T3 UPLC C18 column and gradient mobile phase (water-methanol-formic acid)...
August 26, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28899506/green-tea-effects-on-cognition-mood-and-human-brain-function-a-systematic-review
#19
REVIEW
Edele Mancini, Christoph Beglinger, Jürgen Drewe, Davide Zanchi, Undine E Lang, Stefan Borgwardt
BACKGROUND: Green tea (Camellia sinensis) is a beverage consumed for thousands of years. Numerous claims about the benefits of its consumption were stated and investigated. As green tea is experiencing a surge in popularity in Western culture and as millions of people all over the world drink it every day, it is relevant to understand its effects on the human brain. PURPOSE: To assess the current state of knowledge in the literature regarding the effects of green tea or green tea extracts, l-theanine and epigallocatechin gallate both components of green tea-on general neuropsychology, on the sub-category cognition and on brain functions in humans...
October 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28898860/direct-detection-of-the-triphenylpyrylium-derived-short-lived-intermediates-in-the-photocatalyzed-degradation-of-acetaminophen-acetamiprid-caffeine-and-carbamazepine
#20
R Martinez-Haya, J Gomis, A Arques, A M Amat, M A Miranda, M L Marin
Advanced oxidation processes are useful methodologies to accomplish abatement of contaminants; however, elucidation of the reaction mechanisms is hampered by the difficult detection of the short-lived primary key species involved in the photocatalytic processes. Nevertheless, herein the combined use of an organic photocatalyst such as triphenylpyrylium (TPP(+)) and photophysical techniques based on emission and absorption spectroscopy allowed monitoring the photocatalyst-derived short-lived intermediates. This methodology has been applied to the photocatalyzed degradation of different pollutants, such as acetaminophen, acetamiprid, caffeine and carbamazepine...
September 9, 2017: Journal of Hazardous Materials
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