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https://www.readbyqxmd.com/read/29045873/nanoscale-membrane-budding-induced-by-ctxb-and-detected-via-polarized-localization-microscopy
#1
Abir M Kabbani, Christopher V Kelly
For endocytosis and exocytosis, membranes transition among planar, budding, and vesicular topographies through nanoscale reorganization of lipids, proteins, and carbohydrates. However, prior attempts to understand the initial stages of nanoscale bending have been limited by experimental resolution. Through the implementation of polarized localization microscopy, this article reports the inherent membrane bending capability of cholera toxin subunit B (CTxB) in quasi-one-component-supported lipid bilayers. Membrane buds were first detected with <50 nm radius, grew to >200 nm radius, and extended into longer tubules with dependence on the membrane tension and CTxB concentration...
October 17, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/29045582/strategies-to-reduce-injuries-and-develop-confidence-in-elders-stride-a-cluster-randomized-pragmatic-trial-of-a-multifactorial-fall-injury-prevention-strategy-design-and-methods
#2
Shalender Bhasin, Thomas M Gill, David B Reuben, Nancy K Latham, Jerry H Gurwitz, Patricia Dykes, Siobhan McMahon, Thomas W Storer, Pamela W Duncan, David A Ganz, Shehzad Basaria, Michael E Miller, Thomas G Travison, Erich J Greene, James Dziura, Denise Esserman, Heather Allore, Martha B Carnie, Maureen Fagan, Catherine Hanson, Dorothy Baker, Susan L Greenspan, Neil Alexander, Fred Ko, Albert L Siu, Elena Volpi, Albert W Wu, Jeremy Rich, Stephen C Waring, Robert Wallace, Carri Casteel, Jay Magaziner, Peter Charpentier, Charles Lu, Katy Araujo, Haseena Rajeevan, Scott Margolis, Richard Eder, Joanne M McGloin, Eleni Skokos, Jocelyn Wiggins, Lawrence Garber, Steven B Clauser, Rosaly Correa-De-Araujo, Peter Peduzzi
Background: Fall injuries are a major cause of morbidity and mortality among older adults. We describe the design of a pragmatic trial to compare the effectiveness of an evidence-based, patient-centered multifactorial fall injury prevention strategy to an enhanced usual care. Methods: Strategies to Reduce Injuries and Develop Confidence in Elders (STRIDE) is a 40-month cluster-randomized, parallel-group, superiority, pragmatic trial being conducted at 86 primary care practices in 10 healthcare systems across USA...
October 14, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/29045430/the-association-between-herpes-virus-infections-and-functional-somatic-symptoms-in-a-general-population-of-adolescents-the-trails-study
#3
Iris Jonker, Robert Schoevers, Hans Klein, Judith Rosmalen
BACKGROUND: FSS have been suggested to follow activation of the immune system, triggered by herpes virus infections. The aim of this study was to find out whether herpes virus infections were associated with the experience of FSS in adolescents, and whether this association was mediated by hsCRP, as a general marker of immune activation. METHODS: This study was performed in TRAILS, a large prospective population cohort of 2230 adolescents (mean age: 16.1 years, SD = ...
2017: PloS One
https://www.readbyqxmd.com/read/29045048/relationship-of-circulating-spexin-with-markers-of-cardiovascular-disease-a-pilot-study-in-adolescents-with-obesity
#4
S Kumar, M J Hossain, A Javed, I J Kullo, P B Balagopal
PURPOSE: Spexin, a novel peptide, has potential implications in obesity, satiety and energy homeostasis. The current study examined the relationship of spexin with various biomarkers of cardiovascular disease and endothelial function in adolescents with obesity. METHODS: Nineteen adolescents with obesity (age, 15.8 ± 1.7 years) were studied. Spexin, leptin and various cardiovascular disease biomarkers were measured. Endothelial function was assessed by high-resolution Doppler ultrasonography of the right brachial artery...
October 18, 2017: Pediatric Obesity
https://www.readbyqxmd.com/read/29045043/non-oxidative-coupling-of-methane-to-ethylene-using-mo2c-b-zsm-5
#5
Huibo F Sheng, Raul Francisco Lobo
Methane non-oxidative coupling to ethylene was investigated on Mo2C/[B]ZSM-5 catalyst at 923 K and atmospheric pressure. In contrast to Mo2C/[Al]ZSM-5 catalysts for methane aromatization, this material exhibits very high ethylene selectivity (>90%) and low aromatics (benzene and naphthalene) selectivity. The much weaker Brønsted acidity of [B]ZSM-5 leads to a slow rate of ethylene oligomerization. The stability of the catalyst is greatly enhanced with 93% of the initial reaction rate remaining after 18 h of time on stream...
October 16, 2017: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
https://www.readbyqxmd.com/read/29044793/clustering-of-prevention-behaviours-in-patients-with-high-risk-primary-melanoma
#6
Adèle C Green, Maria Celia B Hughes, Lena A von Schuckmann, Kiarash Khosrotehrani, B Mark Smithers
OBJECTIVE: Because melanoma patients are at high risk of further disease, we aimed to study their melanoma prevention behaviours. METHODS: In a large cohort of patients newly diagnosed with high-risk melanoma in Queensland, Australia, we assessed clustering of preventive behaviours using latent class analysis. We assessed associated factors with prevalence proportion ratios (PPRs) and 95% confidence intervals (CIs) estimated by Poisson regression, and also if preventive behaviour was associated with better tumour prognosis at diagnosis...
October 16, 2017: Psycho-oncology
https://www.readbyqxmd.com/read/29043544/icp-versus-laser-doppler-cerebrovascular-reactivity-indices-to-assess-brain-autoregulatory-capacity
#7
F A Zeiler, J Donnelly, D Cardim, D K Menon, P Smielewski, M Czosnyka
BACKGROUND: To explore the relationship between various autoregulatory indices in order to determine which approximate small vessel/microvascular (MV) autoregulatory capacity most accurately. METHODS: Utilizing a retrospective cohort of traumatic brain injury patients (N = 41) with: transcranial Doppler (TCD), intracranial pressure (ICP) and cortical laser Doppler flowmetry (LDF), we calculated various continuous indices of autoregulation and cerebrovascular responsiveness: A...
October 17, 2017: Neurocritical Care
https://www.readbyqxmd.com/read/29042386/effectiveness-of-an-electronic-patient-centred-self-management-tool-for-gout-sufferers-a-cluster-randomised-controlled-trail-protocol
#8
Richard O Day, Lauren J Frensham, Amy D Nguyen, Melissa T Baysari, Eindra Aung, Annie Y S Lau, Nicholas Zwar, Jennifer Reath, Tracey Laba, Ling Li, Andrew McLachlan, William B Runciman, Rachelle Buchbinder, Robyn Clay-Williams, Enrico Coiera, Jeffrey Braithwaite, H Patrick McNeil, David J Hunter, Kevin J Pile, Ian Portek, Kenneth Mapson WIlliams, Johanna I Westbrook
INTRODUCTION: Gout is increasing despite effective therapies to lower serum urate concentrations to 0.36 mmol/L or less, which, if sustained, significantly reduces acute attacks of gout. Adherence to urate-lowering therapy (ULT) is poor, with rates of less than 50% 1 year after initiation of ULT. Attempts to increase adherence in gout patients have been disappointing. We aim to evaluate the effectiveness of use of a personal, self-management, 'smartphone' application (app) to achieve target serum urate concentrations in people with gout...
October 16, 2017: BMJ Open
https://www.readbyqxmd.com/read/29042323/diversity-and-abundance-of-beauveria-bassiana-in-soils-stink-bugs-and-plant-tissues-of-common-bean-from-organic-and-conventional-fields
#9
Yordanys Ramos, Orelvis Portal, Erik Lysøe, Nicolai V Meyling, Ingeborg Klingen
The aim of this study was to evaluate the natural occurrence of Beauveria spp. in soil, from infections in the stink bug Piezodorus guildinii, an important pest of common bean (Phaseolus vulgaris) and as endophytes in bean plant tissue. Twelve conventional and 12 organic common bean fields in the Villa Clara province, Cuba were sampled from September 2014 to April 2015. One hundred and fifty Beauveria isolates were obtained from soil samples, bean plant parts and stink bugs. The overall frequency of occurrence of Beauveria isolates in conventional fields (8...
October 14, 2017: Journal of Invertebrate Pathology
https://www.readbyqxmd.com/read/29040572/biallelic-mutations-in-the-ferredoxin-reductase-gene-cause-novel-mitochondriopathy-with-optic-atrophy
#10
Yanyan Peng, Deepali N Shinde, Alex C Valencia, Jun-Song Mo, Jill Rosenfeld, Megan Truitt Cho, Adam Chamberlin, Zhuo Li, Jie Liu, Baoheng Gui, Rachel Brockhage, Alice Basinger, Brenda Alvarez-Leon, Peter Heydemann, Pilar L Magoulas, Andrea M Lewis, Fernando Scaglia, Solange Gril, Shuk Ching Chong, Matthew Bower, Kristin G Monaghan, Rebecca Willaert, Maria-Renee Plona, Rich Dineen, Francisca Milan, George Hoganson, Zoe Powis, Katherine L Helbig, Jennifer Keller-Ramey, Belinda Harris, Laura C Anderson, Torrian Green, Stacey J Sukoff Rizzo, Julie Kaylor, Jiani Chen, Min-Xin Guan, Elizabeth Sellars, Steven P Sparagana, James B Gibson, Laura G Reinholdt, Sha Tang, Taosheng Huang
Iron-sulfur (Fe-S) clusters are ubiquitous cofactors essential to various cellular processes, including mitochondrial respiration, DNA repair, and iron homeostasis. A steadily increasing number of disorders are being associated with disrupted biogenesis of Fe-S clusters. Here, we conducted whole-exome sequencing of patients with optic atrophy and other neurological signs of mitochondriopathy and identified 17 individuals from 13 unrelated families with recessive mutations in FDXR, encoding the mitochondrial membrane-associated flavoprotein ferrodoxin reductase required for electron transport from NADPH to cytochrome P450...
October 5, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/29040446/familial-aggregation-and-heritability-of-loa-loa-microfilaremia
#11
Serge Eyebe, Audrey Sabbagh, Sébastien D Pion, Hugues C Nana-Djeunga, Joseph Kamgno, Michel Boussinesq, Cédric B Chesnais
Background: For a given prevalence of Loa loa microfilaremia, the proportion of people with high densities varies significantly between communities. We hypothesized that this variation is related to the existence of familial clusters of hypermicrofilaremic individuals that would be the consequence of a genetic predisposition to present high L. loa microfilarial densities. Methods: A familial study was performed in 10 villages in the Okola Health District of Cameroon...
October 10, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29040288/music-viewed-by-its-entropy-content-a-novel-window-for-comparative-analysis
#12
Gerardo Febres, Klaus Jaffe
Polyphonic music files were analyzed using the set of symbols that produced the Minimal Entropy Description, which we call the Fundamental Scale. This allowed us to create a novel space to represent music pieces by developing: (a) a method to adjust a textual description from its original scale of observation to an arbitrarily selected scale, (b) a method to model the structure of any textual description based on the shape of the symbol frequency profiles, and (c) the concept of higher order entropy as the entropy associated with the deviations of a frequency-ranked symbol profile from a perfect Zipfian profile...
2017: PloS One
https://www.readbyqxmd.com/read/29040200/geospatial-mapping-can-be-used-to-identify-geographic-areas-and-social-factors-associated-with-intentional-injury-as-targets-for-prevention-efforts-distinct-to-a-given-community
#13
C H Lasecki, F C Mujica, S Stutsman, A Y Williams, L Ding, J D Simmons, S B Brevard
BACKGROUND: Geographic information systems (GIS) have proven effective in studying intentional injury in various communities; however, GIS is not implemented widely for use by level I trauma centers in understanding patient populations. Our study of intentional injury combines the capabilities of GIS with a level I trauma center registry to determine the spatial distribution of victims and correlated socioeconomic factors. METHODS: 1,099 out of 3,109 total incidents of intentional trauma in the trauma registry from 2005-2015 had sufficient street address information to be mapped in GIS...
October 16, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/29038810/planarization-of-b20-clusters-by-si-and-c-atom-substitution
#14
Qi Liang Lu, Qi Quan Luo, Yi De Li, Shou Guo Huang
An optimization strategy combining a global semi-empirical quantum mechanical search and all-electron density functional theory was adopted to determine the lowest energy structures of B19Si and B19C clusters. The planarization of a B20 cluster by Si and C atom substitution was observed. The structural transition was from the double-ring tubular B20 to an almost perfect planar B19Si and a quasi-planar bowl B19C. B19Si possessed a geometry with a central B atom surrounded by a six-membered ring and a 13-atom outer ring...
October 17, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29038434/barley-six-rowed-spike3-encodes-a-putative-jumonji-c-type-h3k9me2-me3-demethylase-that-represses-lateral-spikelet-fertility
#15
Hazel Bull, M Cristina Casao, Monika Zwirek, Andrew J Flavell, William T B Thomas, Wenbin Guo, Runxuan Zhang, Paulo Rapazote-Flores, Stylianos Kyriakidis, Joanne Russell, Arnis Druka, Sarah M McKim, Robbie Waugh
The barley inflorescence (spike) comprises a multi-noded central stalk (rachis) with tri-partite clusters of uni-floretted spikelets attached alternately along its length. Relative fertility of lateral spikelets within each cluster leads to spikes with two or six rows of grain, or an intermediate morphology. Understanding the mechanisms controlling this key developmental step could provide novel solutions to enhanced grain yield. Classical genetic studies identified five major SIX-ROWED SPIKE (VRS) genes, with four now known to encode transcription factors...
October 16, 2017: Nature Communications
https://www.readbyqxmd.com/read/29038128/microbial-composition-predicts-genital-tract-inflammation-and-persistent-bacterial-vaginosis-in-adolescent-south-african-women
#16
Katie Lennard, Smritee Dabee, Shaun L Barnabas, Enock Havyarimana, Anna Blakney, Shameem Z Jaumdally, Gerrit Botha, Nonhlanhla N Mkhize, Linda-Gail Bekker, David A Lewis, Glenda Gray, Nicola Mulder, Jo-Ann S Passmore, Heather B Jaspan
Young African females are at increased risk of HIV acquisition, and genital inflammation or the vaginal microbiome may contribute to this risk. We studied these factors in 168 HIV negative South African adolescent women aged 16-22 years. Unsupervised clustering of 16S rRNA gene sequences revealed three clusters (subtypes), one of which was strongly associated with genital inflammation. In a multivariate model, microbiome compositional subtype and hormonal contraception were significantly associated with genital inflammation...
October 16, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/29038057/bio-prospecting-of-coral-porites-lutea-mucus-associated-bacteria-palk-bay-reefs-southeast-coast-of-india
#17
N K Ahila, S Prakash, B Manikandan, J Ravindran, N M Prabhu, E Kannapiran
Coral mucus is one of the key localization in the coral holobiont, as this serves as an energy rich substrate for a wide range of abundant, diverse and multifunctional microbiota. However, very little is known about the functional role of bacterial communities in their associations with corals. In the present study, a total of 48 isolates were obtained from Porites lutea wherein the genus of Bacillus sp. and Vibrio sp. were predominant. Bio-prospecting the coral mucus revealed the existence of (10.42%) antagonistic bacteria against the tested bacterial pathogens...
October 13, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29036988/-characteristics-of-molecular-typing-and-drug-resistance-of-67-salmonella-paratyphi-a-isolated-in-zhengzhou-from-2013-to-2015
#18
J Y Zhao, S Y Zhang, B F Zhang, Y J Mu, J Su, X Y Huang, B L Xu
Objective: To investigate the antimicrobial resistance and pulsed field gel electrophoresis (PFGE) patterns of S.paratyphi A strains in Zhengzhou city isolated from sentinel hospitals in 2013-2015. Methods: According to Salmonella molecular typing and K-B drug susceptibility testing method published by international PulseNet bacterial infectious disease monitoring network and USA Clinical and Laboratory Standards Institute (CLSI2015), we analyzed drug sensitivity and PFGE molecular characteristics of 67 S.paratyphi A strains(11 strains in 2013, 7 strains in 2014, 49 strains in 2015) isolated from blood and stool samples in two sentinel hospitals of fever with rash syndrome surveillance system established in Zhengzhou city in 2013-2015...
October 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/29036937/behaviors-related-to-mosquito-borne-diseases-among-different-ethnic-minority-groups-along-the-china-laos-border-areas
#19
Chao Wu, Xiaofang Guo, Jun Zhao, Quan Lv, Hongbin Li, Edward B McNeil, Virasakdi Chongsuvivatwong, Hongning Zhou
Background: In China, mosquito-borne diseases are most common in the sub-tropical area of Yunnan province. The objective of this study was to examine behaviors related to mosquito-borne diseases in different ethnic minority groups and different socioeconomic groups of people living in this region. Methods: A stratified two-stage cluster sampling technique with probability proportional to size was used in Mengla County, Xishuangbanna Prefecture, Yunnan. Twelve villages were used to recruit adult (≥18 years old) and eight schools were used for children (<18 years old)...
October 15, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29036400/prediction-and-modeling-of-pre-analytical-sampling-errors-as-a-strategy-to-improve-plasma-nmr-metabolomics-data
#20
Carl Brunius, Anders Pedersen, Daniel Malmodin, B Göran Karlsson, Lars I Andersson, Gunnel Tybring, Rikard Landberg
Motivation: Biobanks are important infrastructures for life science research. Optimal sample handling regarding e.g. collection and processing of biological samples is highly complex, with many variables that could alter sample integrity and even more complex when considering multiple study centers or using legacy samples with limited documentation on sample management. Novel means to understand and take into account such variability would enable high-quality research on archived samples...
July 14, 2017: Bioinformatics
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