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https://www.readbyqxmd.com/read/28087414/consumption-of-low-calorie-sweeteners-among-children-and-adults-in-the-united-states
#1
Allison C Sylvetsky, Yichen Jin, Elena J Clark, Jean A Welsh, Kristina I Rother, Sameera A Talegawkar
BACKGROUND: Consumption of low-calorie sweeteners (LCSs) has increased markedly during the past several decades, yet the prevalence of LCS consumption in recent years is currently unknown. OBJECTIVE: The aim of this study was to describe LCS consumption in the United States and to characterize consumption by sociodemographic subgroups, source, frequency, eating occasion, and location. DESIGN: Cross-sectional study using National Health and Nutrition Examination Survey data from 2009 to 2012...
January 6, 2017: Journal of the Academy of Nutrition and Dietetics
https://www.readbyqxmd.com/read/28086810/genotypic-characterization-of-orientia-tsutsugamushi-from-patients-in-two-geographical-locations-in-sri-lanka
#2
Ranjan Premaratna, Lucas S Blanton, Dilhar N Samaraweera, G Nalika N de Silva, Nilmini T G A Chandrasena, David H Walker, H J de Silva
BACKGROUND: To date more than 20 antigenically distinct strains of Orientia tsutsugamushi (OT) reported within the tsutsugamushi triangle that cause an undifferentiated acute febrile illness in humans. Genotypic characterization of OT in different geographic regions or within the same country, is important in order to establish effective diagnostics, clinical management and to develop effective vaccines. Genetic and antigenic characterization of OT causing human disease in OT-endemic regions is not known for Sri Lanka...
January 13, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28081087/plasmonic-non-concentric-nanorings-array-as-an-unidirectional-nano-optical-conveyor-belt-actuated-by-polarization-rotation
#3
Min Jiang, Guanghui Wang, Wenxiang Jiao, Zhoufeng Ying, Ningmu Zou, Ho-Pui Ho, Tianyu Sun, Xuping Zhang
We report a nano-optical conveyor belt containing an array of gold plasmonic non-concentric nanorings (PNNRs) for the realization of trapping and unidirectional transportation of nanoparticles through rotating the polarization of an excitation beam. The location of hot spots within an asymmetric plasmonic nanostructure is polarization dependent, thus making it possible to manipulate a trapped target by rotating the incident polarization state. In the case of PNNR, the two poles have highly unbalanced trap potential...
January 15, 2017: Optics Letters
https://www.readbyqxmd.com/read/28079364/dna-modified-fe3o4-au-magnetic-nanoparticles-as-selective-probes-for-simultaneous-detection-of-heavy-metal-ions
#4
Peng Miao, Yuguo Tang, Lei Wang
Driven by the urgent need to detect trace heavy metal ions in various real water samples, this article demonstrates for the first time an electrochemical biosensor based on DNA modified Fe3O4@Au magnetic nanoparticles (NPs). Three DNA probes are designed to contain certain mismatched base pairs. One is thiolated and modified on the surface of Fe3O4@Au NPs (DNA 1). The other two probes (DNA 2 and 3) are labeled with two independent electrochemical species. Stable structures of cytosine-Ag+-cytosine and thymine-Hg2+-thymine formed in the presence of Ag+ and Hg2+ can assist the hybridization of DNA 1/DNA 2 and DNA 1/DNA 3, which locate corresponding electrochemical species onto the surface of the magnetic NPs...
January 12, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28078415/gc-ms-method-validation-and-levels-of-methyl-eugenol-in-a-diverse-range-of-tea-tree-melaleuca-alternifolia-oils
#5
Carolyn A Raymond, Noel W Davies, Tony Larkman
Tea tree oil distilled from Melaleuca alternifolia has widespread use in the cosmetic industry as an antimicrobial as well as for other functions in topical products. Concerns were first raised by the European Commission's Scientific Committee on Consumer Products in 2004 about the level of the potentially carcinogenic phenylpropanoid compound methyl eugenol in tea tree oil. Limits on oil content in different types of cosmetic products were set based on a reported upper level of 0.9% methyl eugenol in the oil...
January 11, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28077170/prosodic-processing-post-traumatic-brain-injury-a-systematic-review
#6
Gabriela Ilie, Michael D Cusimano, Wenshan Li
BACKGROUND: Traumatic brain injury (TBI) survivors often report difficulties with understanding and producing paralinguistic cues, as well as understanding and producing basic communication tasks. However, a large range of communicative deficits in this population cannot be adequately explained by linguistic impairment. The review examines prosodic processing performance post-TBI, its relationship with injury severity, brain injury localization, recovery and co-occurring psychiatric or mental health issues post-TBI METHODS: A systematic review using several databases including MEDLINE, EMBASE, Cochrane, LLBA (Linguistics and Language Behaviour Abstract) and Web of Science (January 1980 to May 2015), as well as a manual search of the cited references of the selected articles and the search cited features of PubMed was performed...
January 4, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28076930/hormone-receptor-expression-in-human-fascial-tissue
#7
C Fede, G Albertin, L Petrelli, M M Sfriso, C Biz, R De Caro, C Stecco
Many epidemiologic, clinical, and experimental findings point to sex differences in myofascial pain in view of the fact that adult women tend to have more myofascial problems with respect to men. It is possible that one of the stimuli to sensitization of fascial nociceptors could come from hormonal factors such as estrogen and relaxin, that are involved in extracellular matrix and collagen remodeling and thus contribute to functions of myofascial tissue. Immunohistochemical and molecular investigations (real-time PCR analysis) of relaxin receptor 1 (RXFP1) and estrogen receptor-alpha (ERα) localization were carried out on sample of human fascia collected from 8 volunteers patients during orthopedic surgery (all females, between 42 and 70 yrs, divided into pre- and post-menopausal groups), and in fibroblasts isolated from deep fascia, to examine both protein and RNA expression levels...
November 2, 2016: European Journal of Histochemistry: EJH
https://www.readbyqxmd.com/read/28076655/fecal-total-iron-concentration-is-inversely-associated-with-fecal-lactobacillus-in-preschool-children
#8
Sasank Kalipatnapu, Sivaraman Kuppuswamy, Giriprasad Venugopal, Venkatesh Kaliaperumal, Balamurugan Ramadass
BACKGROUND: Iron deficiency is associated with stunting and poor performance in children. Oral iron supplementation is widely promoted to correct iron deficiency. However, excess iron may be toxic to beneficial luminal gut bacteria and could support growth of pathobionts. OBJECTIVE: To analyze the fecal total iron concentration and fecal Lactobacillus levels in a cohort of stunted and normal children. DESIGN: The study was undertaken in two different locations...
January 11, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28076533/similarities-and-differences-in-crack-cocaine-use-patterns-in-santa-catarina-brazil-capital-vs-midwest
#9
Maria Terezinha Zeferino, Vivian Costa Fermo, Marcelo Brandt Fialho, Francisco Inácio Bastos
Crack cocaine has been a major public health problem in Brazil due to the individual and social harms and risks deriving from its use. This article aims to assess the characteristics of drug scenes in the capital and Midwest of Santa Catarina state. The project used the Time-Location Sampling. Between January and June 2011, 41 crack cocaine scenes were mapped in capital of Santa Catarina, whereas 33 were mapped in the Midwest of that state. Such scenes were randomly selected to be observed, as well as their days and shifts (time periods/day) for in-depth observation...
January 2017: Ciência & Saúde Coletiva
https://www.readbyqxmd.com/read/28073440/climate-variability-and-dinophysis-acuta-blooms-in-an-upwelling-system
#10
Patricio A Díaz, Manuel Ruiz-Villarreal, Yolanda Pazos, Teresa Moita, Beatriz Reguera
Dinophysis acuta is a frequent seasonal lipophilic toxin producer in European Atlantic coastal waters associated with thermal stratification. In the Galician Rías, populations of D. acuta with their epicentre located off Aveiro (northern Portugal), typically co-occur with and follow those of Dinophysis acuminata during the upwelling transition (early autumn) as a result of longshore transport. During hotter than average summers, D. acuta blooms also occur in August in the Rías, when they replace D. acuminata...
March 2016: Harmful Algae
https://www.readbyqxmd.com/read/28073357/long-noncoding-rna-repertoire-in-chicken-liver-and-adipose-tissue
#11
Kévin Muret, Christophe Klopp, Valentin Wucher, Diane Esquerré, Fabrice Legeai, Frédéric Lecerf, Colette Désert, Morgane Boutin, Frédéric Jehl, Hervé Acloque, Elisabetta Giuffra, Sarah Djebali, Sylvain Foissac, Thomas Derrien, Sandrine Lagarrigue
BACKGROUND: Improving functional annotation of the chicken genome is a key challenge in bridging the gap between genotype and phenotype. Among all transcribed regions, long noncoding RNAs (lncRNAs) are a major component of the transcriptome and its regulation, and whole-transcriptome sequencing (RNA-Seq) has greatly improved their identification and characterization. We performed an extensive profiling of the lncRNA transcriptome in the chicken liver and adipose tissue by RNA-Seq. We focused on these two tissues because of their importance in various economical traits for which energy storage and mobilization play key roles and also because of their high cell homogeneity...
January 10, 2017: Genetics, Selection, Evolution: GSE
https://www.readbyqxmd.com/read/28072804/multidisciplinary-care-of-unruptured-brain-arteriovenous-malformations-to-improve-symptomatic-headache-and-the-onset-progression-and-outcomes-of-unruptured-brain-arteriovenous-malformations
#12
Ling-Feng Lai, Min Chen, Jia-Xiang Chen, Kuang Zheng, Xu-Ying He, Xi-Feng Li, Xin Zhang, Jian Yin, Qiu-Jing Wang, Tuan-Ming Zou, Chuan-Zhi Duan
BACKGROUND: Symptomatic headaches attributed to unruptured brain arteriovenous malformations (ubAVMs) are very common and affect patients' quality life, but multidisciplinary care of ubAVMs to improve symptomatic headache remains unclear. OBJECTIVE: The objective is to identify the features of symptomatic headaches, and to obtain headache outcomes following multidisciplinary care of ubAVMs, as well as provide background on the natural history of ubAVMs. STUDY DESIGN: The features of symptomatic headaches and headache outcomes were analyzed in a large cohort of cases after multidisciplinary care of ubAVMs...
January 2017: Pain Physician
https://www.readbyqxmd.com/read/28068401/advantages-of-synthetic-noise-and-machine-learning-for-analyzing-radioecological-data-sets
#13
Igor Shuryak
The ecological effects of accidental or malicious radioactive contamination are insufficiently understood because of the hazards and difficulties associated with conducting studies in radioactively-polluted areas. Data sets from severely contaminated locations can therefore be small. Moreover, many potentially important factors, such as soil concentrations of toxic chemicals, pH, and temperature, can be correlated with radiation levels and with each other. In such situations, commonly-used statistical techniques like generalized linear models (GLMs) may not be able to provide useful information about how radiation and/or these other variables affect the outcome (e...
2017: PloS One
https://www.readbyqxmd.com/read/28066886/precise-observation-of-c-elegans-dynamic-behaviours-under-controlled-thermal-stimulus-using-a-mobile-phone-based-microscope
#14
T Yoon, D-M Shin, S Kim, S Lee, T G Lee, K Kim
We investigated the temperature-dependent locomotion of Caenorhabditis elegans by using the mobile phone-based microscope. We developed the customized imaging system with mini incubator and smartphone to effectively control the thermal stimulation for precisely observing the temperature-dependent locomotory behaviours of C. elegans. Using the mobile phone-based microscope, we successfully followed the long-term progress of specimens of C. elegans in real time as they hatched and explored their temperature-dependent locomotory behaviour...
January 9, 2017: Journal of Microscopy
https://www.readbyqxmd.com/read/28064305/upregulation-of-pim2-by-underexpression-of-microrna-135-5p-improves-survival-rates-of-skin-allografts-by-suppressing-apoptosis-of-fibroblast-cells
#15
Hongtu Zhang
BACKGROUND It has been reported that miR-135-5p is involved with many diseases. In this study, we aimed at define the relationship between miR-135-5p level and burn patient survival after skin transplantation. MATERIAL AND METHODS Expression of miR-135-5p and PIM2 was measured using real-time PCR and Western blot analysis in the skin samples collected from burn patients who received skin graft or in the fibroblast cells transfected with miR-135-5p mimics or inhibitors. The regulatory association between miR-135-5p and PIM2 was verified using bioinformatics analysis and luciferase assay...
January 8, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28063724/pressure-injury-prevalence-in-intensive-care-versus-non-intensive-care-patients-a-state-wide-comparison
#16
Fiona Coyer, Sandra Miles, Sandra Gosley, Paul Fulbrook, Kirstine Sketcher-Baker, Jane-Louise Cook, Jacqueline Whitmore
BACKGROUND: Hospital-acquired pressure injury is associated with increased morbidity and mortality and considered to be largely preventable. Pressure injury prevalence is regarded as a marker of health care quality. OBJECTIVE: To compare the state-wide prevalence, severity and location of pressure injuries of intensive care unit patients compared to patients in non-intensive care wards. METHOD: The study employed a secondary data analysis design to extract and analyse de-identified pressure injury data from all Queensland Health hospitals with level I-III intensive care facilities that participated in Queensland Bedside Audits between 2012-2014...
January 4, 2017: Australian Critical Care: Official Journal of the Confederation of Australian Critical Care Nurses
https://www.readbyqxmd.com/read/28063656/effect-of-cyclic-redox-oscillations-on-water-quality-in-freshwater-acid-sulfate-soil-wetlands
#17
Niloofar Karimian, Scott G Johnston, Edward D Burton
Restoration of acid sulfate soil (ASS) wetlands by freshwater re-flooding can lead to the reformation of various Fe(II) and reduced inorganic sulfur (RIS) species in surface soil layers. However, in many locations, wetland water levels undergo large seasonal fluctuations that drive extreme redox oscillations. Newly formed RIS species [e.g. greigite, mackinawite, nano-pyrite and S(0)] and Fe(II) are vulnerable to rapid oxidation during dry periods and may generate substantial acidity. Rainfall following a dry period may then mobilise acidity and metal cations in surface waters prior to eventual recovery in pH by re-establishment of reducing conditions...
January 4, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28063382/determination-of-the-measurement-threshold-in-gamma-ray-spectrometry
#18
M Korun, B Vodenik, B Zorko
In gamma-ray spectrometry the measurement threshold describes the lover boundary of the interval of peak areas originating in the response of the spectrometer to gamma-rays from the sample measured. In this sense it presents a generalization of the net indication corresponding to the decision threshold, which is the measurement threshold at the quantity value zero for a predetermined probability for making errors of the first kind. Measurement thresholds were determined for peaks appearing in the spectra of radon daughters (214)Pb and (214)Bi by measuring the spectrum 35 times under repeatable conditions...
December 28, 2016: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/28063299/miniaturization-of-a-transthyretin-binding-assay-using-a-fluorescent-probe-for-high-throughput-screening-of-thyroid-hormone-disruption-in-environmental-samples
#19
Xiyu Ouyang, Jean Froment, Pim E G Leonards, Guttorm Christensen, Knut-Erik Tollefsen, Jacob de Boer, Kevin V Thomas, Marja H Lamoree
Thyroid hormone (TH) disrupting compounds are potentially important environmental contaminants due to their possible adverse neurological and developmental effects on both humans and wildlife. Currently, the most successful bio-analytical method to detect and evaluate TH disruptors, which target the plasma transport of TH in environmental samples, is the radio-ligand thyroxine-transthyretin (T4-TTR) binding assay. Yet, costly materials and tedious handling procedures prevent the use of this assay in high throughput analysis that is nowadays urgently demanded in environmental quality assessment...
December 23, 2016: Chemosphere
https://www.readbyqxmd.com/read/28060300/kinematic-analysis-of-cell-division-and-expansion-quantifying-the-cellular-basis-of-growth-and-sampling-developmental-zones-in-zea-mays-leaves
#20
Katrien Sprangers, Viktoriya Avramova, Gerrit T S Beemster
Growth analyses are often used in plant science to investigate contrasting genotypes and the effect of environmental conditions. The cellular aspect of these analyses is of crucial importance, because growth is driven by cell division and cell elongation. Kinematic analysis represents a methodology to quantify these two processes. Moreover, this technique is easy to use in non-specialized laboratories. Here, we present a protocol for performing a kinematic analysis in monocotyledonous maize (Zea mays) leaves...
December 2, 2016: Journal of Visualized Experiments: JoVE
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