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https://www.readbyqxmd.com/read/28738641/an-interference-free-and-label-free-sandwich-type-magnetic-silicon-microsphere-rgo-based-probe-for-fluorescence-detection-of-microrna
#1
Shiyu Li, Kui He, Rong Liao, Chunyan Chen, Xiaoming Chen, Changqun Cai
An interference-free and label-free sensing platform was developed for the highly sensitive detection of microRNA-21 (miRNA-21) in vitro by magnetic silicon microsphere (MNP)-reduced graphene oxide (rGO)-based sandwich probe. In this method, DNA capture probes (P1) were connected with MNPs at the 5' end and hybridized with completely complementary target miRNA. Subsequently, rGO was retained and induced the fluorescence quenching in the supernatant. Through the magnetic separation, the supernatant environment was simplified and the interference to analytical signal was eliminated...
November 1, 2017: Talanta
https://www.readbyqxmd.com/read/28738591/procedures-for-precise-measurements-of-135-cs-137-cs-atom-ratios-in-environmental-samples-at-extreme-dynamic-ranges-and-ultra-trace-levels-by-thermal-ionization-mass-spectrometry
#2
James A Dunne, David A Richards, Hsin-Wei Chen
Determination of (135)Cs/(137)Cs atom ratios has the potential to be a powerful tool for nuclear forensics and monitoring environmental processes. We present optimized chemical separation techniques and thermal ionization mass spectrometry (TIMS) protocols to obtain precise (135)Cs/(137)Cs atom ratios for a range of environmental sample types. We use a combination of double AMP-PAN separation and Sr-spec resin column purification to yield excellent separation from the alkali metals (Rb separation factor > 600), which normally suppress ionization of Cs...
November 1, 2017: Talanta
https://www.readbyqxmd.com/read/28738543/phenolic-compounds-of-triplaris-gardneriana-can-protect-cells-against-oxidative-stress-and-restore-oxidative-balance
#3
Thiago Silva de Almeida, José Joaquim Lopes Neto, Nathanna Mateus de Sousa, Igor Parra Pessoa, Leonardo Rogério Vieira, Jackeline Lima de Medeiros, Aline Augusti Boligon, Astrid R M Hamers, Davi Felipe Farias, Ad Peijnenburg, Ana Fontenele Urano Carvalho
This work aimed to add value to an underexploited plant species from Brazil, Triplaris gardneriana. To that, the phenolic compounds profile of its seed ethanolic extract and fractions was examined by HPLC and the antioxidant capacity assessed using chemical assays as well as in vitro cell imaging. Twelve compounds were quantified and classified as either phenolic acids or flavonoids. The fractionation process did not generate fractions with different compositions except for chloroformic fraction, which showed only 6 out of 12 standard compounds used...
July 20, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28738494/-congenital-absence-of-left-atrial-appendage-in-a-patient-with-paroxysmal-ventricular-tachycardia-and-atrial-fibrillation
#4
B Zhang, A Q Shen
No abstract text is available yet for this article.
July 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28738418/molecular-pathway-to-protection-from-age-dependent-photoreceptor-degeneration-in-mef2-deficiency
#5
Saumya Nagar, Dorit Trudler, Scott R McKercher, Juan Piña-Crespo, Nobuki Nakanishi, Shu-Ichi Okamoto, Stuart A Lipton
Purpose: Photoreceptor degeneration in the retina is a major cause of blindness in humans. Elucidating mechanisms of degenerative and neuroprotective pathways in photoreceptors should afford identification and development of therapeutic strategies. Methods: We used mouse genetic models and improved methods for retinal explant cultures. Retinas were enucleated from Mef2d+/+ and Mef2d-/- mice, stained for MEF2 proteins and outer nuclear layer thickness, and assayed for apoptotic cells...
July 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28738365/advances-in-box-surgery-for-obstructive-sleep-apnea-genioglossus-advancement-hyoid-suspension-and-maxillomandibular-advancement
#6
Yau Hong Goh, Winston Tan, Victor James Abdullah, Sung Wan Kim
Box surgery for obstructive sleep apnea (OSA) patients consists of mandibular surgery, including genioglossus advancement, hyoid suspension, and maxillomandibular advancement, as an airway reconstruction. This surgery was developed in the early 1980s. Thereafter, techniques were modified in each surgery for the enhancement of outcome and prevention of complications. However, the indication for surgery remains poorly defined due to the dynamicity of the upper airway, variability of the phenotype in OSA patients, and absence of a representative method for the obstruction site in the upper airway...
2017: Advances in Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28738340/novel-positional-devices-for-the-treatment-of-positional-obstructive-sleep-apnea-and-how-this-relates-to-sleep-surgery
#7
Madeline J L Revesloot, Linda Benoist, Peter van Maanen, Nico de Vries
If untreated, obstructive sleep apnea (OSA) develops as a gradual progressive disease. In the early stage of the disease most patients with OSA are positional. The archetypical patient might progress from simple positional snoring via positional early-stage mild disease to less positional moderate and finally nonpositional severe OSA. At first, the apnea-hypopnea index (AHI) is high only in the supine position, and later is high in all sleeping positions. The phenomenon is reversible. After partial effective treatment, patients with severe OSA can reverse to less severe positional OSA or, in other words, the AHI drops more in the lateral position than in supine position...
2017: Advances in Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28738275/early-childhood-myoclonic-epilepsy-an-independent-genetic-generalized-epilepsy-with-myoclonic-seizures-as-the-main-seizure-type
#8
Zhixian Yang, Jiao Xue, Hui Li, Ping Qian, Xiaoyan Liu, Yuwu Jiang, Yuehua Zhang
OBJECTIVE: To elucidate the characteristics of the myoclonic seizures alone, or predominant myoclonus combined with generalized tonic-clonic seizures (GTCS) and/or absences, in early childhood, and discuss its classification. METHODS: Forty-two children were retrospectively recruited between January 2006 and June 2015. RESULTS: The mean age of seizure onset was 40.5months. They were divided into 4 groups: myoclonic seizures alone; predominant myoclonus combined with GTCS; predominant myoclonus combined with absences; predominant myoclonus combined with both GTCS and absences...
July 6, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28738126/comparing-plasma-phospho-tau-total-tau-and-phospho-tau-total-tau-ratio-as-acute-and-chronic-traumatic-brain-injury-biomarkers
#9
Richard Rubenstein, Binggong Chang, John K Yue, Allen Chiu, Ethan A Winkler, Ava M Puccio, Ramon Diaz-Arrastia, Esther L Yuh, Pratik Mukherjee, Alex B Valadka, Wayne A Gordon, David O Okonkwo, Peter Davies, Sanjeev Agarwal, Fan Lin, George Sarkis, Hamad Yadikar, Zhihui Yang, Geoffrey T Manley, Kevin K W Wang, Shelly R Cooper, Kristen Dams-O'Connor, Allison J Borrasso, Tomoo Inoue, Andrew I R Maas, David K Menon, David M Schnyer, Mary J Vassar
Importance: Annually in the United States, at least 3.5 million people seek medical attention for traumatic brain injury (TBI). The development of therapies for TBI is limited by the absence of diagnostic and prognostic biomarkers. Microtubule-associated protein tau is an axonal phosphoprotein. To date, the presence of the hypophosphorylated tau protein (P-tau) in plasma from patients with acute TBI and chronic TBI has not been investigated. Objective: To examine the associations between plasma P-tau and total-tau (T-tau) levels and injury presence, severity, type of pathoanatomic lesion (neuroimaging), and patient outcomes in acute and chronic TBI...
July 24, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/28738112/central-role-of-protein-kinase-a-in-promoting-trigeminal-nociception-in-an-in-vivo-model-of-temporomandibular-disorders
#10
Lindsey K Koop, Jordan L Hawkins, Lauren E Cornelison, Paul L Durham
AIMS: To investigate cellular changes in the spinal trigeminal nucleus (STN) and trigeminal ganglion (TG) associated with trigeminal nociception mediated by inflammation in the temporomandibular joint (TMJ). METHODS: Male Sprague-Dawley rats (n = 86) were utilized to investigate cellular and behavioral responses to prolonged TMJ inflammation caused by bilateral injection of Complete Freund's Adjuvant (CFA) in the TMJ capsules. To investigate the cellular effects of protein kinase A (PKA) in the STN, rats were injected intrathecally with the selective PKA inhibitor KT5720 prior to injection of CFA into both TMJ capsules...
July 2017: Journal of Oral & Facial Pain and Headache
https://www.readbyqxmd.com/read/28738095/a-clinically-useful-screen-for-attention-deficit-hyperactivity-disorder-in-adult-psychiatric-outpatients
#11
Mark Zimmerman, Eugenia Gorlin, Kristy Dalrymple, Iwona Chelminiski
BACKGROUND: Attention-deficit/hyperactivity disorder (ADHD) is a serious illness that is frequently underdiagnosed in adults. The goal of this report from the Rhode Island Methods to Improve Diagnostic Assessment and Services project was to determine if it was possible to identify 1 or 2 ADHD criteria that could serve as "gate" criteria to screen for the disorder. METHODS: Psychiatric outpatients (N = 1,134) were evaluated using a semi-structured diagnostic interview for DSM-IV criteria of ADHD...
August 1, 2017: Annals of Clinical Psychiatry: Official Journal of the American Academy of Clinical Psychiatrists
https://www.readbyqxmd.com/read/28738093/experience-with-a-second-language-affects-the-use-of-fundamental-frequency-in-speech-segmentation
#12
Annie Tremblay, Jui Namjoshi, Elsa Spinelli, Mirjam Broersma, Taehong Cho, Sahyang Kim, Maria Teresa Martínez-García, Katrina Connell
This study investigates whether listeners' experience with a second language learned later in life affects their use of fundamental frequency (F0) as a cue to word boundaries in the segmentation of an artificial language (AL), particularly when the cues to word boundaries conflict between the first language (L1) and second language (L2). F0 signals phrase-final (and thus word-final) boundaries in French but word-initial boundaries in English. Participants were functionally monolingual French listeners, functionally monolingual English listeners, bilingual L1-English L2-French listeners, and bilingual L1-French L2-English listeners...
2017: PloS One
https://www.readbyqxmd.com/read/28738078/evaluation-of-maldi-tof-mass-spectrometry-and-maldi-biotyper-in-comparison-to-16s-rdna-sequencing-for-the-identification-of-bacteria-isolated-from-arctic-sea-water
#13
Anna Maria Timperio, Susanna Gorrasi, Lello Zolla, Massimiliano Fenice
MALDI-TOF Mass Spectrometry in association with the MALDI BioTyper 3.1 software has been evaluated for the identification and classification of 45 Arctic bacteria isolated from Kandalaksha Bay (White Sea, Russia). The high reliability of this method has been already demonstrated, in clinical microbiology, by a number of studies showing high attribution concordance with other credited analyses. Recently, it has been employed also in other branches of microbiology with controversial performance. The phyloproteomic results reported in this study were validated with those obtained by the "gold standard" 16S rDNA analysis...
2017: PloS One
https://www.readbyqxmd.com/read/28738039/chemotherapy-extravasation-establishing-a-national-benchmark-for-incidence-among-cancer-centers
#14
Jeannette Jackson-Rose, Judith Del Monte, Adrienne Groman, Linda S Dial, Leah Atwell, Judy Graham, Rosemary O'Neil Semler, Maryellen O'Sullivan, Lisa Truini-Pittman, Terri A Cunningham, Lisa Roman-Fischetti, Eileen Costantinou, Chris Rimkus, Adrienne J Banavage, Barbara Dietz, Carol J Colussi, Kimberly Catania, Michelle Wasko, Kevin A Schreffler, Colleen West, Mary Lou Siefert, Robert David Rice
BACKGROUND: Given the high-risk nature and nurse sensitivity of chemotherapy infusion and extravasation prevention, as well as the absence of an industry benchmark, a group of nurses studied oncology-specific nursing-sensitive indicators. 
. OBJECTIVES: The purpose was to establish a benchmark for the incidence of chemotherapy extravasation with vesicants, irritants, and irritants with vesicant potential.
. METHODS: Infusions with actual or suspected extravasations of vesicant and irritant chemotherapies were evaluated...
August 1, 2017: Clinical Journal of Oncology Nursing
https://www.readbyqxmd.com/read/28737998/examination-of-the-patient-focused-impact-of-cancer-telegenetics-among-a-rural-population-comparison-with-traditional-in-person-services
#15
Nan M Solomons, Amanda E Lamb, Frances L Lucas, Eileen F McDonald, Susan Miesfeldt
BACKGROUND: Telecommunication models promise to improve access to cancer genetic counseling. Little is known about their impact among the geographically underserved. This work examined knowledge and emotional outcomes and attitudes/beliefs regarding cancer telegenetic services (via live-interactive videoconferencing) in Maine. MATERIALS AND METHODS: Cancer telegenetic patients seen at two remote sites and control (in-person) patients responded to pre-/postsurveys assessing care impact on hereditary breast and ovarian cancer (HBOC) knowledge and emotional health, ease of access to services, and telegenetics satisfaction/acceptability...
July 21, 2017: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
https://www.readbyqxmd.com/read/28737978/risk-of-violence-among-patients-in-psychiatric-treatment-results-from-a-national-census
#16
Solveig Osborg Ose, Solfrid Lilleeng, Ivar Pettersen, Torleif Ruud, Jaap van Weeghel
BACKGROUND: Adverse media coverage of isolated incidents affects the public perception of the risk of violent behavior among people with mental illness. However, the risk of violence is studied most frequently among inpatients, which falsely exaggerates the prevalence of people with mental illness because the majority of individuals receive treatment as outpatients. AIM: To estimate the prevalence of the risk of violence among inpatients and outpatients in psychiatric treatment, as well as the associations with gender, age, socio-economic status and co-morbid substance use disorders in all major diagnostic categories...
July 24, 2017: Nordic Journal of Psychiatry
https://www.readbyqxmd.com/read/28737938/heterogeneous-photooxidation-of-so2-in-the-presence-of-two-different-mineral-dust-particles-gobi-and-arizona-dust
#17
Jiyeon Park, Myoseon Jang, Zechen Yu
The impact of authentic mineral dust particles sourced from the Gobi Desert (GDD) on the kinetic uptake coefficient of SO2 was studied under varying environments (humidity, O3, and NOx) using both an indoor chamber and an outdoor chamber. There was a significant increase in the kinetic uptake coefficient of SO2 (ΥSO4(2-),light) for GDD particles under UV light compared to the value (ΥSO4(2-),dark) under dark conditions at various relative humidities (RH) ranging from 20% to 80%. In both the presence and absence of O3 and NOx, ΥSO4(2-),light and ΥSO4(2-),dark) greatly increased with increasing RH...
July 24, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28737909/inhibitory-kappa-b-kinse-%C3%AE-ikk%C3%AE-inhibitors-that-recapitulate-their-selectivity-in-cells-against-isoform-related-biomarkers
#18
Nahoum G Anthony, Jessica Baiget, Giacomo Berretta, Marie Boyd, David Breen, Joanne Edwards, Carly Gamble, Alexander I Gray, Alan L Harvey, Sophia Hatziieremia, Ka Ho Ho, Judith K Huggan, Stuart Lang, Sabin Llona-Minguez, Jia Lin Luo, Kathryn McIntosh, Andrew Paul, Robin J Plevin, Murray N Robertson, Rebecca Scott, Colin J Suckling, Oliver Brook Sutcliffe, Louise C Young, Simon Paul Mackay
IKKβ plays a central role in the canonical NF-kB pathway, which has been extensively characterised. The role of IKKα in the non-canonical NF-kB pathway, and indeed in the canonical pathway as a complex with IKKβ, is less well understood. One major reason for this is the absence of chemical tools designed as selective inhibitors for IKKα over IKKβ, until now. Herein, we report for the first time a series of novel, potent and selective inhibitors of IKKα. We demonstrate effective target engagement and selectivity with IKKα in U2OS cells through inhibition of IKKα-driven p100 phosphorylation in the non-canonical NF-kB pathway without affecting IKKβ-dependent IKappa-Bα loss in the canonical pathway...
July 24, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28737818/di-vs-tetra-substituted-quinonediimines-a-drastic-effect-on-coordination-chemistry
#19
Lucien Lavaud, Zhongrui Chen, Mourad Elhabiri, Denis Jacquemin, Gabriel Canard, Olivier Siri
We describe the first isolation of N,N'-disubstituted benzoquinonediimines (QDIs) 2 which revealed drastically different properties compared to N,N',N'',N'''-tetrasubstituted QDIs 1 due to the absence of N-substituents in the "upper part" of the molecule. Three major differences could be highlighted thanks to the present joint experimental and theoretical investigation: (1) the metalation with different metal precursors revealed a specific behaviour in coordination chemistry giving access to novel complexes with unprecedented stoichiometry and remarkable absorption properties...
July 24, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28737712/an-investigation-of-sensory-specific-satiety-and-food-size-when-children-consume-a-whole-or-diced-vegetable
#20
Jasmine R Goh, Catherine G Russell, Djin G Liem
Children's vegetable consumption is often lower than that needed to promote optimal health and development, and practical approaches for increasing vegetable consumption are needed. Sensory Specific Satiety (SSS) reduces the liking and consumption of a consumed food over the course of an eating occasion and is an important factor in meal termination. The present study aimed to investigate the development of SSS when children ate vegetables of different sizes. The absence of SSS would be an encouraging sign to provide children more vegetables during a meal...
July 24, 2017: Foods (Basel, Switzerland)
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