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https://www.readbyqxmd.com/read/28335535/enterovirus-71-neutralizing-antibodies-seroepidemiological-research-among-children-in-guangzhou-china-between-2014-and-2015-a-cross-sectional-study
#1
Dingmei Zhang, Yan Chen, Xiashi Chen, Zhenjian He, Xun Zhu, Yuantao Hao
A hand-foot-mouth disease outbreak occurred in 2014 around Guangdong. The purpose of this study was investigating the status and susceptibility of infectious neutralizing antibodies to enterovirus 71 among children so as to provide scientific evidence for the population immunity level of hand-foot-mouth disease and prepare for enterovirus 71 vaccination implementation. Serum specimens were collected from children in communities from January 2014 to March 2015 in Guangzhou. A total of 197 serum samples from children 1-5 years old were collected for this cross-sectional study via non-probabilistic sampling from the database of Chinese National Science and Technique Major Project...
March 20, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28335523/-2-2-photodimerization-of-naphthylvinylpyridines-through-cation-%C3%AF-interactions-in-acidic-solution
#2
Shinji Yamada, Yuka Nojiri
Irradiation of (E)-4-(2-(2-naphthyl)vinyl)pyridine (1a) and (E)-4-(2-(1-naphthyl)vinyl)pyridine (1b) with a 250 W high-pressure mercury lamp in acidic solution afforded synHT dimers in high stereoselectivities. Similar results were obtained by visible light irradiation. On the other hand, when the reactions were carried out under neutral conditions, the stereoselectivities were very low, and the yields were decreased by visible light irradiation. Comparison of the UV-vis spectra between the acidic and the neutral conditions elucidated that the red shift was observed in acidic solutions...
March 20, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28335522/extracellular-vesicles-deliver-host-and-virus-rna-and-regulate-innate-immune-response
#3
REVIEW
Takahisa Kouwaki, Masaaki Okamoto, Hirotake Tsukamoto, Yoshimi Fukushima, Hiroyuki Oshiumi
The innate immune system plays a crucial role in controlling viral infection. Pattern recognition receptors (PRRs), such as Toll-like receptors and RIG-I-like receptors, sense viral components called pathogen-associated molecular patterns (PAMPs) and trigger signals to induce innate immune responses. Extracellular vesicles (EVs), including exosomes and microvesicles, deliver functional RNA and mediate intercellular communications. Recent studies have revealed that EVs released from virus-infected cells deliver viral RNA to dendritic cells and macrophages, thereby activating PRRs in recipient cells, which results in the expression of type I interferon and pro-inflammatory cytokines...
March 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28335472/detecting-breast-cancer-with-a-dual-modality-device
#4
Kamila Padia, Tania S Douglas, Lydia L Cairncross, Roland V Baasch, Christopher L Vaughan
Although mammography has been the gold standard for the early detection of breast cancer, if a woman has dense breast tissue, a false negative diagnosis may occur. Breast ultrasound, whether hand-held or automated, is a useful adjunct to mammography but adds extra time and cost. The primary aim was to demonstrate that our second-generation Aceso system, which combines full-field digital mammography (FFDM) and automated breast ultrasound (ABUS) in a single platform, is able to produce improved quality images that provide clinically meaningful results...
March 18, 2017: Diagnostics
https://www.readbyqxmd.com/read/28335460/neuropsychology-of-aesthetic-judgment-of-ambiguous-and-non-ambiguous-artworks
#5
Maddalena Boccia, Sonia Barbetti, Laura Piccardi, Cecilia Guariglia, Anna Maria Giannini
Several affective and cognitive processes have been found to be pivotal in affecting aesthetic experience of artworks and both neuropsychological as well as psychiatric symptoms have been found to affect artistic production. However, there is a paucity of studies directly investigating effects of brain lesions on aesthetic judgment. Here, we assessed the effects of unilateral brain damage on aesthetic judgment of artworks showing part/whole ambiguity. We asked 19 unilaterally brain-damaged patients (10 left and 9 right brain damaged patients, respectively LBDP and RBDP) and 20 age- and education-matched healthy individuals (controls, C) to rate 10 Arcimboldo's ambiguous portraits (AP), 10 realistic Renaissance portraits (RP), 10 still life paintings (SL), and 10 Arcimboldo's modified portraits where only objects/parts are detectable (AO)...
March 18, 2017: Behavioral Sciences
https://www.readbyqxmd.com/read/28335449/the-relation-between-frequency-of-e-cigarette-use-and-frequency-and-intensity-of-cigarette-smoking-among-south-korean-adolescents
#6
Jung Ah Lee, Sungkyu Lee, Hong-Jun Cho
INTRODUCTION: The prevalence of adolescent electronic cigarette (e-cigarette) use has increased in most countries. This study aims to determine the relation between the frequency of e-cigarette use and the frequency and intensity of cigarette smoking. Additionally, the study evaluates the association between the reasons for e-cigarette use and the frequency of its use. MATERIALS AND METHODS: Using the 2015 Korean Youth Risk Behavior Web-Based Survey, we included 6655 adolescents with an experience of e-cigarette use who were middle and high school students aged 13-18 years...
March 14, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28335411/how-the-cobra-got-its-flesh-eating-venom-cytotoxicity-as-a-defensive-innovation-and-its-co-evolution-with-hooding-aposematic-marking-and-spitting
#7
Nadya Panagides, Timothy N W Jackson, Maria P Ikonomopoulou, Kevin Arbuckle, Rudolf Pretzler, Daryl C Yang, Syed A Ali, Ivan Koludarov, James Dobson, Brittany Sanker, Angelique Asselin, Renan C Santana, Iwan Hendrikx, Harold van der Ploeg, Jeremie Tai-A-Pin, Romilly van den Bergh, Harald M I Kerkkamp, Freek J Vonk, Arno Naude, Morné A Strydom, Louis Jacobsz, Nathan Dunstan, Marc Jaeger, Wayne C Hodgson, John Miles, Bryan G Fry
The cytotoxicity of the venom of 25 species of Old World elapid snake was tested and compared with the morphological and behavioural adaptations of hooding and spitting. We determined that, contrary to previous assumptions, the venoms of spitting species are not consistently more cytotoxic than those of closely related non-spitting species. While this correlation between spitting and non-spitting was found among African cobras, it was not present among Asian cobras. On the other hand, a consistent positive correlation was observed between cytotoxicity and utilisation of the defensive hooding display that cobras are famous for...
March 13, 2017: Toxins
https://www.readbyqxmd.com/read/28335315/oxidation-of-co-and-methanol-on-pd-ni-catalysts-supported-on-different-chemically-treated-carbon-nanofibers
#8
Juan Carlos Calderón, Miguel Rios Ráfales, María Jesús Nieto-Monge, Juan Ignacio Pardo, Rafael Moliner, María Jesús Lázaro
In this work, palladium-nickel nanoparticles supported on carbon nanofibers were synthesized, with metal contents close to 25 wt % and Pd:Ni atomic ratios near to 1:2. These catalysts were previously studied in order to determine their activity toward the oxygen reduction reaction. Before the deposition of metals, the carbon nanofibers were chemically treated in order to generate oxygen and nitrogen groups on their surface. Transmission electron microscopy analysis (TEM) images revealed particle diameters between 3 and 4 nm, overcoming the sizes observed for the nanoparticles supported on carbon black (catalyst Pd-Ni CB 1:2)...
October 18, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28335314/effects-of-g-quadruplex-topology-on-electronic-transfer-integrals
#9
Wenming Sun, Daniele Varsano, Rosa Di Felice
G-quadruplex is a quadruple helical form of nucleic acids that can appear in guanine-rich parts of the genome. The basic unit is the G-tetrad, a planar assembly of four guanines connected by eight hydrogen bonds. Its rich topology and its possible relevance as a drug target for a number of diseases have stimulated several structural studies. The superior stiffness and electronic π-π overlap between consecutive G-tetrads suggest exploitation for nanotechnologies. Here we inspect the intimate link between the structure and the electronic properties, with focus on charge transfer parameters...
October 15, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28335281/study-on-utilization-of-carboxyl-group-decorated-carbon-nanotubes-and-carbonation-reaction-for-improving-strengths-and-microstructures-of-cement-paste
#10
Xiantong Yan, Hongzhi Cui, Qinghua Qin, Waiching Tang, Xiangming Zhou
Carbon nanotubes (CNTs) have excellent mechanical properties and can be used to reinforce cement-based materials. On the other hand, the reaction product of carbonation with hydroxides in hydrated cement paste can reduce the porosity of cement-based materials. In this study, a novel method to improve the strength of cement paste was developed through a synergy of carbon nanotubes decorated with carboxyl group and carbonation reactions. The experimental results showed that the carboxyl group (-COOH) of decorated carbon nanotubes and the surfactant can control the morphology of the calcium carbonate crystal of carbonation products in hydrated cement paste...
August 19, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28335041/the-cerebellum-and-its-wrapping-meninge-developmental-interplay-between-two-major-structures
#11
Martin Catala
Meninges have long been considered as a protective and supportive tissue for the central nervous system. Nevertheless, new developmental roles are now attributed to them. The meninges that surround the cerebellum come from the cephalic mesoderm. They are essential for the cerebellum to develop normally. They induce and maintain the basal lamina and glia limitans. In the absence of these structures, the external granular cells of the cerebellum migrate aberrantly and penetrate the subarachnoid space. The molecules involved in the recognition between the cerebellar primordium and the basal lamina belong to two groups in humans: dystroglycan and laminin on the one hand, and GPR56 and collagen III on the other...
March 23, 2017: Neuropediatrics
https://www.readbyqxmd.com/read/28335017/the-medical-battery-in-the-united-states-1870-1920-electrotherapy-at-home-and-in-the-clinic
#12
Anna Wexler
This paper focuses on the history of a portable shock-producing electrotherapeutic device known as the medical battery (1870-1920), which provided both direct and alternating current and was thought to cure a wide variety of ailments. The product occupied a unique space at the nexus of medicine, consumerism and quackery: it was simultaneously considered a legitimate device by medical professionals who practiced electrotherapeutics, yet identical versions were sold directly to consumers, often via newspaper advertisements and with cure-all marketing language...
March 16, 2017: Journal of the History of Medicine and Allied Sciences
https://www.readbyqxmd.com/read/28334999/rewiring-the-primary-somatosensory-cortex-in-carpal-tunnel-syndrome-with-acupuncture
#13
Yumi Maeda, Hyungjun Kim, Norman Kettner, Jieun Kim, Stephen Cina, Cristina Malatesta, Jessica Gerber, Claire McManus, Rebecca Ong-Sutherland, Pia Mezzacappa, Alexandra Libby, Ishtiaq Mawla, Leslie R Morse, Ted J Kaptchuk, Joseph Audette, Vitaly Napadow
Carpal tunnel syndrome is the most common entrapment neuropathy, affecting the median nerve at the wrist. Acupuncture is a minimally-invasive and conservative therapeutic option, and while rooted in a complex practice ritual, acupuncture overlaps significantly with many conventional peripherally-focused neuromodulatory therapies. However, the neurophysiological mechanisms by which acupuncture impacts accepted subjective/psychological and objective/physiological outcomes are not well understood. Eligible patients (n = 80, 65 female, age: 49...
March 2, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28334841/oral-fluid-testing-for-cocaine-analytical-evaluation-of-two-point-of-collection-drug-screening-devices
#14
Juliana Nichterwitz Scherer, Taís Regina Fiorentin, Tanara Rosangela Vieira Sousa, Renata Pereira Limberger, Flavio Pechansky
The use of point-of-collection testing (POCT) devices for drugs of abuse in oral fluid (OF) is an advantageous tool that has been used for different purposes-particularly traffic enforcement. However, even with the widespread report of cocaine consumption, the reliability of POCT devices has been reported in different magnitudes. This study evaluated the reliability of two POCT devices for the detection of cocaine in OF samples of 110 cocaine users: (i) the DDS2™ (cutoff = 30 ng/mL) and (ii) the Multi-Drugs Multi-Line-Twist Screen Test Device™ (MDML) (cutoff = 20 ng/mL)...
February 27, 2017: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/28334816/dynamic-changes-in-chromatin-states-during-specification-and-differentiation-of-adult-intestinal-stem-cells
#15
Juri Kazakevych, Sergi Sayols, Berith Messner, Christina Krienke, Natalia Soshnikova
Epigenetic mechanisms, including chromatin structure, chromatin dynamics and histone modifications play an important role for maintenance and differentiation of pluripotent embryonic stem cells. However, little is known about the molecular mechanisms of adult stem cell specification and differentiation. Here, we used intestinal stem cells (ISCs) as a model system to reveal the epigenetic changes coordinating gene expression programs during these processes. We found that two distinct epigenetic mechanisms participate in establishing the transcriptional program promoting ISC specification from embryonic progenitors...
March 7, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28334802/engagement-strategies-that-foster-community-self-determination-in-participatory-research-insider-ownership-through-outsider-championship
#16
Jon Salsberg, Soultana Macridis, Enrique Garcia Bengoechea, Ann C Macaulay, Spencer Moore
Background.: In order to maximize the benefits of community-based participatory research, effective ownership over the research process must be at least equally in the hands of the community. A previous social network analysis documented that the participatory research process shifted ownership from academic to community partners, but did not show what actions and strategies fostered this shift. Objectives.: This study follows the trajectory of a community-academic partnership and asks, from the perspective of the project stakeholders, which actions and strategies over the lifespan of the research led to the observed shift in ownership and decision-making from the original external academics to the community stakeholders? Methods...
February 18, 2017: Family Practice
https://www.readbyqxmd.com/read/28334676/manual-motor-speed-dysfunction-as-a-neurocognitive-endophenotype-in-euthymic-bipolar-disorder-patients-and-their-healthy-relatives-evidence-from-a-5-year-follow-up-study
#17
P Correa-Ghisays, V Balanzá-Martínez, G Selva-Vera, J Vila-Francés, E Soria-Olivas, J Vivas-Lalinde, C San Martín, A M Borrás, R Ayesa-Arriola, J Sanchez-Moreno, J Sánchez-Ort, B Crespo-Facorro, E Vieta, R Tabarés-Seisdedos
BACKGROUND: Few studies have examined Manual Motor Speed (MMS) in bipolar disorder (BD). The aim of this longitudinal, family study was to explore whether dysfunctional MMS represents a neurocognitive endophenotype of BD. METHODS: A sample of 291 subjects, including 131 BD patients, 77 healthy first-degree relatives (BD-Rel), and 83 genetically-unrelated healthy controls (HC), was assessed with the Finger-Tapping Test (FTT) on three occasions over a 5-year period...
March 16, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28334654/synthesis-and-biological-evaluation-of-a-new-series-of-benzimidazole-derivatives-as-antimicrobial-antiquorum-sensing-and-antitumor-agents
#18
N S El-Gohary, M I Shaaban
New benzimidazole derivatives were synthesized and assessed for antimicrobial efficacy toward Escherichia coli, Bacillus cereus, Staphylococcus aureus, Candida albicans and Aspergillus fumigatus 293. Results indicated that compounds 3c and 3n have promising activity toward S. aureus, whereas 3i exhibited remarkable efficacy toward B. cereus. Moreover, compound 3c was proved to be the most active antifungal analog toward C. albicans. On the other hand, 3n displayed the highest activity against A. fumigatus 293...
March 14, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28334644/low-level-inorganic-arsenic-exposure-and-neuropsychological-functioning-in-american-indian-elders
#19
Clint R Carroll, Carolyn Noonan, Eva M Garroutte, Ana Navas-Acien, Steven P Verney, Dedra Buchwald
BACKGROUND: Inorganic arsenic at high and prolonged doses is highly neurotoxic. Few studies have evaluated whether long-term, low-level arsenic exposure is associated with neuropsychological functioning in adults. OBJECTIVES: To investigate the association between long-term, low-level inorganic arsenic exposure and neuropsychological functioning among American Indians aged 64-95. METHODS: We assessed 928 participants in the Strong Heart Study by using data on arsenic species in urine samples collected at baseline (1989-1991) and results of standardized tests of global cognition, executive functioning, verbal learning and memory, fine motor functioning, and speed of mental processing administered during comprehensive follow-up evaluations in 2009-2013...
March 18, 2017: Environmental Research
https://www.readbyqxmd.com/read/28334591/crossing-the-communication-chasm-challenges-and-opportunities-in-transitions-of-care-from-the-hospital-to-the-primary-care-clinic
#20
Nicholas A Rattray, Jason J Sico, LeeAnn M Cox, Alissa L Russ, Marianne S Matthias, Richard M Frankel
BACKGROUND: Transitions of care from specialty and acute settings to primary care abound. Compared to the continuity in end-of-shift handoffs, care transitions involve provider communication between practices and facilities with their own cultures and bureaucracies. Using the transition from acute care to outpatient primary care for stroke/transient ischemic attack (TIA) patients as a case study, this qualitative research explored communication practices and institutional arrangements among clinical providers responsible for longitudinal management of hypertension...
March 2017: Joint Commission Journal on Quality and Patient Safety
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