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https://www.readbyqxmd.com/read/28214373/improved-detection-of-zika-virus-rna-in-human-and-animal-specimens-by-a-novel-highly-sensitive-and-specific-real-time-rt-pcr-assay-targeting-the-5-untranslated-region-of-zika-virus
#1
Jasper Fuk-Woo Chan, Cyril Chik-Yan Yip, Kah-Meng Tee, Zheng Zhu, Jessica Oi-Ling Tsang, Kenn Ka-Heng Chik, Terance Gi-Wai Tsang, Chris Chung-Sing Chan, Vincent Kwok-Man Poon, Siddharth Sridhar, Feifei Yin, Ivan Fan-Ngai Hung, Sandy Ka-Yee Chau, Anna Jinxia Zhang, Kwok-Hung Chan, Kwok-Yung Yuen
OBJECTIVE AND METHOD: We developed and evaluated five novel real-time RT-PCR assays targeting conserved regions in the 5'-untranslated region (5'-UTR), envelope (E'), non-structural protein 2A (NS2A), NS5, and 3'-UTR of the ZIKV genome. RESULTS: The ZIKV-5'-UTR assay exhibited the lowest in-vitro limit of detection (5-10 RNA copies/reaction and 3.0×10(-1) plaque-forming units/ml). Compared to the modified version of a widely adopted RT-PCR assay targeting the ZIKV-E gene, the ZIKV-5'-UTR assay showed better sensitivity in human clinical specimens, and representative mouse specimens, including many organs which are known to be involved in human ZIKV infection but difficult to obtain in clinical settings...
February 18, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28214051/effects-of-a-straw-phonation-protocol-on-acoustic-measures-of-an-satb-chorus-singing-two-contrasting-renaissance-works
#2
Jeremy N Manternach, Chad Clark, James F Daugherty
BACKGROUND: Researchers have found that semi-occluded vocal tract (SOVT) exercises may increase vocal economy by reducing phonation threshold pressure and effort while increasing or maintaining consistent acoustic output. This research has focused solely on individual singers. Much singing instruction, however, takes place in choral settings. Choral singers may use different resonance strategies or unconsciously adjust their singing based on the ability to hear their own sound in relation to others...
February 14, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28211972/tsc2-c-1864c-t-variant-associated-with-mild-cases-of-tuberous-sclerosis-complex
#3
Laura S Farach, William T Gibson, Steven P Sparagana, Mark Nellist, Connie T R M Stumpel, Marja Hietala, Elliott Friedman, Deborah A Pearson, Susan P Creighton, Annemiek Wagemans, Reveel Segel, Efrat Ben-Shalom, Kit Sing Au, Hope Northrup
Tuberous sclerosis complex (TSC) is an autosomal dominantly inherited disorder with variable expressivity associated with hamartomatous tumors, abnormalities of the skin, and neurologic problems including seizures, intellectual disability, and autism. TSC is caused by pathogenic variants in either TSC1 or TSC2. In general, TSC2 pathogenic variants are associated with a more severe phenotype than TSC1 pathogenic variants. Here, we report a pathogenic TSC2 variant, c.1864C>T, p.(Arg622Trp), associated with a mild phenotype, with most carriers meeting fewer than two major clinical diagnostic criteria for TSC...
March 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28202581/identification-and-functional-implications-of-sodium-myo-inositol-cotransporter-1-in-pancreatic-beta-cells-and-type-2-diabetes-mellitus
#4
Stephen Yu Ting Li, Sam Tsz Wai Cheng, Dan Zhang, Po Sing Leung
Myo-inositol (MI), the precursor of the second messenger phosphoinositide (PI), mediates multiple cellular events. Rat islets exhibit active transport of MI, though the mechanism involved remains elusive. Here, we report, for the first time, the expression of sodium/myo-inositol cotransporter 1 (SMIT1) in rat islets and specifically, β-cells. Genetic or pharmacological inhibition of SMIT impaired glucose-stimulated insulin secretion by INS-1E cells, probably via down-regulation of PI signaling. Additionally, we found that SMIT1 expression in INS-1E cells and isolated islets was augmented by acute high-glucose exposure and reduced in chronic hyperglycemia conditions...
February 15, 2017: Diabetes
https://www.readbyqxmd.com/read/28198806/arrays-of-individual-dna-molecules-on-nanopatterned-substrates
#5
Roland Hager, Alma Halilovic, Jonathan R Burns, Friedrich Schäffler, Stefan Howorka
Arrays of individual molecules can combine the advantages of microarrays and single-molecule studies. They miniaturize assays to reduce sample and reagent consumption and increase throughput, and additionally uncover static and dynamic heterogeneity usually masked in molecular ensembles. However, realizing single-DNA arrays must tackle the challenge of capturing structurally highly dynamic strands onto defined substrate positions. Here, we create single-molecule arrays by electrostatically adhering single-stranded DNA of gene-like length onto positively charged carbon nanoislands...
February 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28197628/resveratrol-induced-autophagy-and-apoptosis-in-cisplatin-resistant-human-oral-cancer-car-cells-a-key-role-of-ampk-and-akt-mtor-signaling
#6
Chao-Hsiang Chang, Chao-Ying Lee, Chi-Cheng Lu, Fuu-Jen Tsai, Yuan-Man Hsu, Je-Wei Tsao, Yu-Ning Juan, Hong-Yi Chiu, Jai-Sing Yang, Ching-Chiung Wang
Resveratrol is known to be an effective chemo-preventive phytochemical against multiple tumor cells. However, the increasing drug resistance avoids the cancer treatment in oral cavity cancer. In this study, we investigated the oral antitumor activity of resveratrol and its mechanism in cisplatin-resistant human oral cancer CAR cells. Our results demonstrated that resveratrol had an extremely low toxicity in normal oral cells and provoked autophagic cell death to form acidic vesicular organelles (AVOs) and autophagic vacuoles in CAR cells by acridine orange (AO) and monodansylcadaverine (MDC) staining...
January 30, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28195525/observing-others-speak-or-sing-activates-spt-and-neighboring-parietal-cortex
#7
Daniele Corbo, Guy A Orban
To obtain further evidence that action observation can serve as a proxy for action execution and planning in posterior parietal cortex, we scanned participants while they were (1) observing two classes of action: vocal communication and oral manipulation, which share the same effector but differ in nature, and (2) rehearsing and listening to nonsense sentences to localize area Spt, thought to be involved in audio-motor transformation during speech. Using this localizer, we found that Spt is specifically activated by vocal communication, indicating that Spt is not only involved in planning speech but also in observing vocal communication actions...
February 14, 2017: Journal of Cognitive Neuroscience
https://www.readbyqxmd.com/read/28194232/post-challenge-insulin-concentration-is-useful-for-differentiating-between-coronary-artery-disease-and-cardiac-syndrome-x-in-subjects-without-known-diabetes-mellitus
#8
Kae-Woei Liang, Wayne H-H Sheu, Wen-Jane Lee, Wen-Lieng Lee, Hung-Chih Pan, I-Te Lee, Jun-Sing Wang
BACKGROUND: Cardiac syndrome X (CSX) is characterized by angina pectoris but with patent coronary arteries. Our previous study demonstrated that subjects with CSX had a higher fasting insulin-resistance (IR) than the controls. However, few studies have investigated the degree of IR, including oral glucose tolerance test (OGTT)-derived indices and profiles of metabolic abnormalities between CSX and coronary artery disease (CAD). METHODS: Ninety-two CSX and 145 CAD subjects without known diabetes mellitus (DM) underwent coronary angiogram (CAG) for angina pectoris and also agreed to receive OGTT and glycated hemoglobin (HbA1C) evaluations for screening abnormal glucose regulation and IR...
2017: Diabetology & Metabolic Syndrome
https://www.readbyqxmd.com/read/28192818/-benefits-of-measures-to-promote-development-in-language-mathematics-and-singing-in-kindergardeners-analysis-of-data-collected-at-school-entrance-examination-in-the-county-of-biberach
#9
Ulrike Hart, Manfred Wildner, Daniela Krämer, Alexander Crispin
To evaluate the benefits of implementing measures to promote skills in the areas of language, mathematics and singing in kindergardeners by statistical analysis of data collected during the school entrance examination (ESU) of 4-5-year-old children from the county of Biberach. Study 1 employs multivariate regression analysis to analyse - in chronological order - the ESU data on 4 cohorts (2011-2014; n=7 148) of children of the Biberach county. Study 2 qualitatively compares identical data representative of the entire state of Baden-Württemberg (N=3×80 000) with the Biberach results...
February 13, 2017: Das Gesundheitswesen
https://www.readbyqxmd.com/read/28190669/insurance-status-affects-postoperative-morbidity-and-complication-rate-after-shoulder-arthroplasty
#10
Xinning Li, David R Veltre, Antonio Cusano, Paul Yi, David Sing, Joel J Gagnier, Josef K Eichinger, Andrew Jawa, Asheesh Bedi
BACKGROUND: Shoulder arthroplasty is an effective procedure for managing patients with shoulder pain secondary to end-stage arthritis. Insurance status has been shown to be a predictor of patient morbidity and mortality. The current study evaluated the effect of patient insurance status on perioperative outcomes after shoulder replacement surgery. METHODS: Data between 2004 and 2011 were obtained from the Nationwide Inpatient Sample. Analysis included patients undergoing shoulder arthroplasty (partial, total, and reverse) procedures determined by International Classification of Disease, 9th Revision procedure codes...
February 10, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28190491/influence-of-milking-method-disinfection-and-herd-management-practices-on-bulk-tank-milk-somatic-cell-counts-in-tropical-dairy-herds-in-colombia
#11
J Reyes, J Sanchez, H Stryhn, T Ortiz, M Olivera, G P Keefe
The aims of this study were to evaluate the effects of milking method, disinfection practices and other management factors on the bulk tank milk somatic cell count (BTSCC) in tropical dairy herds and to examine potential interactions with time. One hundred and thirty farms in the Northern region of Antioquia, Colombia, were visited once per month for 24 months. A two level linear mixed model for repeated measures was used to assess the impact on log transformed BTSCC (lnBTSCC). The geometric mean of the BTSCC for all herds was 262,330 cells/mL...
February 2017: Veterinary Journal
https://www.readbyqxmd.com/read/28187923/the-impact-of-a-teaching-or-singing-career-on-the-female-vocal-quality-at-the-mean-age-of-67-years-a-pilot-study
#12
Evelien D'haeseleer, Sofie Claeys, Kim Bettens, Laura Leemans, Ann-Sophie Van Calster, Nina Van Damme, Zoë Thijs, Julie Daelman, Clara Leyns, Kristiane Van Lierde
OBJECTIVES: The purpose of this study was to measure the objective and subjective vocal quality in women aged between 60 and 75 years. Secondly, the impact of a teaching or singing career on the vocal quality was investigated by comparing the vocal quality of retired women with different careers. STUDY DESIGN: This is a case-control study. METHODS: Seventy-three retired women between 60 and 75 years (mean age: 67 years, standard deviation: 4...
February 7, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28186910/robustness-analysis-on-dual-neural-network-based-kwta-with-input-noise
#13
Ruibin Feng, Chi-Sing Leung, John Sum
This paper studies the effects of uniform input noise and Gaussian input noise on the dual neural network-based kWTA (DNN-kWTA) model. We show that the state of the network (under either uniform input noise or Gaussian input noise) converges to one of the equilibrium points. We then derive a formula to check if the network produce correct outputs or not. Furthermore, for the uniformly distributed inputs, two lower bounds (one for each type of input noise) on the probability that the network produces the correct outputs are presented...
February 6, 2017: IEEE Transactions on Neural Networks and Learning Systems
https://www.readbyqxmd.com/read/28185955/endothelial-nox4-based-nadph-oxidase-regulates-atherosclerosis-via-soluble-epoxide-hydrolase
#14
Pingping Hu, Xiaojuan Wu, Alok R Khandelwal, Weimin Yu, Zaicheng Xu, Lili Chen, Jian Yang, Robert M Weisbrod, Kin Sing Stephen Lee, Francesca Seta, Bruce D Hammock, Richard A Cohen, Chunyu Zeng, Xiaoyong Tong
: Nox4-based NADPH oxidase is a major reactive oxygen species-generating enzyme in the vasculature, but its role in atherosclerosis remains controversial. OBJECTIVE: Our goal was to investigate the mechanisms of endothelial Nox4 in regulating atherosclerosis. APPROACH AND RESULTS: Atherosclerosis-prone conditions (disturbed blood flow, type I diabetes, and Western diet) downregulated endothelial Nox4 mRNA in arteries. To address whether the downregulated endothelial Nox4 was directly involved in the development of atherosclerosis, we generated mice carrying a human Nox4 P437H dominant negative mutation (Nox4DN), driven by the endothelial specific promoter Tie-2, on atherosclerosis-prone genetic background (ApoE deficient mice) to mimic the effect of decreased endothelial Nox4...
February 6, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28185815/novel-antiviral-activity-and-mechanism-of-bromocriptine-as-a-zika-virus-ns2b-ns3-protease-inhibitor
#15
Jasper Fuk-Woo Chan, Kenn Ka-Heng Chik, Shuofeng Yuan, Cyril Chik-Yan Yip, Zheng Zhu, Kah-Meng Tee, Jessica Oi-Ling Tsang, Chris Chung-Sing Chan, Vincent Kwok-Man Poon, Gang Lu, Anna Jinxia Zhang, Kin-Kui Lai, Kwok-Hung Chan, Richard Yi-Tsun Kao, Kwok-Yung Yuen
Zika virus (ZIKV) infection is associated with congenital malformations in infected fetuses and severe neurological and other systemic complications in adults. There are currently limited anti-ZIKV treatment options that are readily available and safe for use in pregnancy. In this drug repurposing study, bromocriptine was found to have inhibitory effects on ZIKV replication in cytopathic effect inhibition, virus yield reduction, and plaque reduction assays. Time-of-drug-addition assay showed that bromocriptine exerted anti-ZIKV activity between 0 and 12 h post-ZIKV inoculation, corroborating with post-entry events in the virus replication cycle prior to budding...
February 6, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28185755/the-james-a-rand-young-investigator-s-award-administrative-claims-vs-surgical-registry-capturing-outcomes-in-total-joint-arthroplasty
#16
Joseph T Patterson, David Sing, Erik N Hansen, Bobby Tay, Alan Zhang
BACKGROUND: Administrative claims in total joint arthroplasty are used for observational studies and payment adjustments under the Comprehensive Care for Joint Replacement (CJR) legislation. Claims data have not been validated against prospective surgical outcome registries for primary total hip (THA) or knee arthroplasty (TKA). We hypothesized that significant differences in reported comorbidity and adverse event measures exist between administrative claims and prospective registry data relevant to payment adjudication under the CJR reimbursement model...
February 6, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28185447/highly-efficient-deep-blue-electroluminescence-from-a-charge-transfer-emitter-with-stable-donor-skeleton
#17
Wen-Cheng Chen, Yi Yuan, Shao-Fei Ni, Ze-Lin Zhu, Jinfeng Zhang, Zuo-Quan Jiang, Liang-Sheng Liao, Fu-Lung Wong, Chun-Sing Lee
Organic materials containing arylamines have been widely used as hole-transporting materials as well as emitters in organic light-emitting devices (OLEDs). However, it has been pointed out that the C-N bonds in these arylamines can easily suffer from degradation in excited states, especially in deep-blue OLEDs. In this work, phenanthro[9,10-d]imidazole (PI) is proposed as a potential donor with higher stability than those of arylamines. Using PI as the donor, a donor-acceptor type deep-blue fluorophore 1-phenyl-2-(4″-(1-phenyl-1H-benzo[d]imidazol-2-yl)-[1,1':4',1″-terphenyl]-4-yl)-1H-phenanthro[9,10-d]imidazole (BITPI) is designed and synthesized...
February 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28182722/hemoglobin-glycation-index-as-a-useful-predictor-of-therapeutic-responses-to-dipeptidyl-peptidase-4-inhibitors-in-patients-with-type-2-diabetes
#18
Yu-Wei Chen, Jun-Sing Wang, Wayne H-H Sheu, Shih-Yi Lin, I-Te Lee, Yuh-Min Song, Chia-Po Fu, Chia-Lin Lee
INTRODUCTION: A high hemoglobin glycation index (HGI) and glycated hemoglobin (HbA1c) level are associated with greater inflammatory status, and dipeptidyl peptidase-4 (DPP-4) inhibitors can suppress inflammation. We aimed to evaluate the relationship between HGI and the therapeutic effect of DPP-4 inhibitors. METHODS: This retrospective cohort study followed 468 patients with type 2 diabetes receiving DPP-4 inhibitor treatment for 1 year. Estimated HbA1c was calculated using a linear regression equation derived from another 2969 randomly extracted patients with type 2 diabetes based on fasting plasma glucose (FPG) level...
2017: PloS One
https://www.readbyqxmd.com/read/28179465/variability-of-fasting-plasma-glucose-increased-risks-of-diabetic-polyneuropathy-in-t2dm
#19
Chun-Pai Yang, Chia-Ing Li, Chiu-Shong Liu, Wen-Yuan Lin, Kai-Lin Hwang, Sing-Yu Yang, Tsai-Chung Li, Cheng-Chieh Lin
OBJECTIVE: To examine whether variations in fasting plasma glucose (FPG), as measured by the coefficient of variation (CV), is a predictor of diabetic polyneuropathy (DPN) risk, considering glycated hemoglobin (HbA1c) and other traditional risk factors. METHODS: Type 2 diabetic patients enrolled in the National Diabetes Care Management Program were ≥30 years of age and free of DPN (n = 36,152). They were enrolled in 2002-2004 and were monitored until 2011. The related factors were analyzed using Cox proportional hazards regression models...
February 8, 2017: Neurology
https://www.readbyqxmd.com/read/28176436/differential-microstructural-and-morphological-abnormalities-in-mild-cognitive-impairment-and-alzheimer-s-disease-evidence-from-cortical-and-deep-gray-matter
#20
Nan-Jie Gong, Chun-Chung Chan, Lam-Ming Leung, Chun-Sing Wong, Russell Dibb, Chunlei Liu
One aim of this study is to use non-Gaussian diffusion kurtosis imaging (DKI) for capturing microstructural abnormalities in gray matter of Alzheimer's disease (AD). The other aim is to compare DKI metrics against thickness of cortical gray matter and volume of deep gray matter, respectively. A cohort of 18 patients with AD, 18 patients with amnestic mild cognitive impairment (MCI), and 18 normal controls underwent morphological and DKI MR imaging. Images were investigated using regions-of-interest-based analyses for deep gray matter and vertex-wise analyses for cortical gray matter...
February 8, 2017: Human Brain Mapping
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