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https://www.readbyqxmd.com/read/28631319/herbivory-induced-jasmonates-constrain-plant-sugar-accumulation-and-growth-by-antagonizing-gibberellin-signaling-and-not-by-promoting-secondary-metabolite-production
#1
Ricardo A R Machado, Ian T Baldwin, Matthias Erb
Plants respond to herbivory by reconfiguring hormonal networks, increasing secondary metabolite production and decreasing growth. Furthermore, some plants display a decrease in leaf energy reserves in the form of soluble sugars and starch, leading to the hypothesis that herbivory-induced secondary metabolite production and growth reduction may be linked through a carbohydrate-based resource trade-off. In order to test the above hypothesis, we measured leaf carbohydrates and plant growth in seven genetically engineered Nicotiana attenuata genotypes that are deficient in one or several major herbivore-induced, jasmonate-dependent defensive secondary metabolites and proteins...
July 2017: New Phytologist
https://www.readbyqxmd.com/read/28628370/multiple-joint-exercises-using-elastic-resistance-bands-vs-conventional-resistance-training-equipment-a-cross-over-study
#2
Vegard M Iversen, Paul Jarle Mork, Ottar Vasseljen, Ronny Bergquist, Marius S Fimland
Previous studies indicate that elastic resistance bands (ERB) can be a viable option to conventional resistance-training equipment (CRE) during single-joint resistance exercises, but their efficacy has not been established for several commonly used multiple-joint resistance exercises. Thus, we compared muscular activation levels in four popular multiple-joint exercises performed with ERB (TheraBand(®)) vs. CRE (Olympic barbell or cable pulley machines). In a cross-over design, men and women (n = 29) performed squats, stiff-legged deadlifts, unilateral rows and lateral pulldown using both modalities...
June 19, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28627910/at-home-partner-sleep-functioning-over-the-course-of-military-deployment
#3
Katherine E Miller, Erin Koffel, Mark D Kramer, Christopher R Erbes, Paul A Arbisi, Melissa A Polusny
Although the negative effects of deployment on the health of military spouses have been studied, research on sleep disruptions remains limited. This study investigates trajectories of sleep complaints over the course of deployment and predictors of these changes among a cohort of at-home partners. Data were drawn from the Readiness and Resilience in National Guard Soldiers (RINGS-2) project, a prospective, longitudinal study of National Guard soldiers deployed to Iraq/Kuwait (2011-2012) and their intimate partners...
June 19, 2017: Journal of Family Psychology: JFP
https://www.readbyqxmd.com/read/28627686/hypoxia-and-acidosis-driven-aberrations-of-secreted-micrornas-in-endometrial-cancer-in-vitro
#4
Julia Eismann, Marc Hirschfeld, Thalia Erbes, Gerta Rücker, Markus Jäger, Andrea Ritter, Daniela Weiss, Gerald Gitsch, Sebastian Mayer
Due to their post-transcriptional regulatory impact on gene expression, microRNAs (miRNA, miRs) influence decisively cellular processes of differentiation, proliferation and apoptosis. In oncogenic pathways various miRNAs exert either oncogenic or tumor suppressor activities in a stage-specific manner. Dysregulation of miRNA expression pattern has been associated with several human cancers including endometrial cancer (EC). In the present study, expression profile alterations of EC associated secreted miRNAs were determined under the microenvironmental stress situations hypoxia and acidosis occurring in tumor progression and metastasis...
June 13, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28625476/feedback-loops-interlocked-at-competitive-binding-sites-amplify-and-facilitate-genetic-oscillations
#5
Koichiro Uriu, Hajime Tei
Positive and negative feedback loops are often present in regulatory networks for genetic oscillations. Relative time scales and integration of these feedback loops are key to robust oscillations in expression levels. Using examples from the circadian clock and synthetic genetic oscillators, we study positive and negative feedback loops interlocked at competitive binding sites. In the mammalian circadian clock, a key clock gene Bmal1 is regulated by the activator ROR and the repressor REV-ERB. Conversely, Bmal1 activates both of them, forming interlocked feedback loops...
June 15, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28622497/feline-panleukopenia-virus-is-not-associated-with-myocarditis-or-endomyocardial-restrictive-cardiomyopathy-in-cats
#6
Laura McEndaffer, Alex Molesan, Hollis Erb, Kathleen Kelly
Canine parvovirus-2 (CPV-2) is nearly indistinguishable from feline panleukopenia virus (FPV) and is a well-known cause of viral myocarditis in young puppies; however, it is not known whether either FPV or CPV-2 naturally infects feline cardiomyocytes and causes myocarditis. Endomyocarditis (EMC) and left ventricular endomyocardial fibrosis (LVEF), clinically known as "endomyocardial restrictive cardiomyopathy," are important feline heart diseases suspected to have an infectious etiology. A continuum is suggested with EMC representing the acute reaction to an unknown infectious agent and LVEF the chronic manifestation of repair...
July 2017: Veterinary Pathology
https://www.readbyqxmd.com/read/28619525/murine-and-human-pancreatic-tumor-exosome-recovery-in-mouse-serum-diagnostic-and-prognostic-potential-and-target-cell-delivery
#7
Ulrike Erb, Kun Zhao, Zhe Wang, Li Xiao, Margot Zöller
Exosomes (Exo), powerful intercellular communicators, are recovered in all body fluids, suggesting suitability for diagnosis and prognosis. Easy in vitro manipulation recommends Exo as drug vehicles. Aiming to consolidate diagnostic and therapeutic potential of Exo, we evaluated recovery and fate of tumor (TEX) and exogenous Exo in syngeneic and xenogeneic mice bearing a murine or a human pancreatic adenocarcinoma. A significant increase in serum (S)-TEX was observed 2 weeks after tumor cell application. Instead, S-TEX declined within 3-6 days after tumor excision...
June 12, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28617860/increasing-prevalence-of-infectious-diseases-in-asylum-seekers-at-a-tertiary-care-hospital-in-switzerland
#8
Constantine Bloch-Infanger, Veronika Bättig, Jürg Kremo, Andreas F Widmer, Adrian Egli, Roland Bingisser, Manuel Battegay, Stefan Erb
OBJECTIVE: The increasing number of refugees seeking asylum in Europe in recent years poses new challenges for the healthcare systems in the destination countries. The goal of the study was to describe the evolution of medical problems of asylum seekers at a tertiary care centre in Switzerland. METHODS: At the University Hospital Basel, we compared all asylum seekers during two 1-year time periods in 2004/05 and 2014/15 concerning demographic characteristics and reasons for referrals and hospitalizations...
2017: PloS One
https://www.readbyqxmd.com/read/28617818/proteome-profiling-in-il-1%C3%AE-and-vegf-activated-human-umbilical-vein-endothelial-cells-delineates-the-interlink-between-inflammation-and-angiogenesis
#9
Thomas Mohr, Verena Haudek-Prinz, Astrid Slany, Johannes Grillari, Michael Micksche, Christopher Gerner
Endothelial cells represent major effectors in inflammation and angiogenesis, processes that drive a multitude of pathological states such as atherosclerosis and cancer. Both inflammation and angiogenesis are interconnected with each other in the sense that many pro-inflammatory proteins possess proangiogenic properties and vice versa. To elucidate this interplay further, we present a comparative proteome study of inflammatory and angiogenic activated endothelial cells. HUVEC were stimulated with interleukin 1-β and VEGF, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28616167/species-specific-regulation-of-herbivory-induced-defoliation-tolerance-is-associated-with-jasmonate-inducibility
#10
Ricardo A R Machado, Wenwu Zhou, Abigail P Ferrieri, Carla C M Arce, Ian T Baldwin, Shuqing Xu, Matthias Erb
Induced changes in root carbohydrate pools are commonly assumed to determine plant defoliation tolerance to herbivores. However, the regulation and species specificity of these two traits are not well understood. We determined herbivory-induced changes in root carbohydrates and defoliation tolerance in seven different solanaceous plant species and correlated the induced changes in root carbohydrates and defoliation tolerance with jasmonate inducibility. Across species, we observed strong species-specific variation for all measured traits...
June 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28596982/evidence-of-the-effectiveness-of-primary-brachial-plexus-surgery-in-infants-with-obstetric-brachial-plexus-palsy-revisited
#11
Amel A F El-Sayed
A recent systematic review questioned the effectiveness of primary surgery in infants with obstetric brachial plexus palsy. At our center, the indication for primary surgery in infants with upper Erb's obstetric palsy is the lack of active elbow flexion at age 4 months. The current study compares the outcome of motor recovery in 2 groups of infants with upper Erb's palsy: one group (n = 9) treated surgically between age 4 and 5 months, and another group (n = 9) treated conservatively despite the lack of active elbow flexion at age 4 months...
January 2017: Child neurology open
https://www.readbyqxmd.com/read/28586774/the-use-of-mouse-asthma-models-to-successfully-discover-and-develop-novel-drugs
#12
Michelle M Epstein, Cornelia Tilp, Klaus J Erb
The past 20 years have seen a proliferation of scientific data on the pathophysiology of asthma. Most of these data were generated in mice using tool reagents, gene-deficient or transgenic animals. In contrast, studies on disease pathogenesis in patients are scarce. Previously, a good novel antiasthma target for drug development was one that abrogated asthma in mice when it was knocked out, neutralized or induced asthma when it was overexpressed. This type of approach led to many drug candidates that worked in mice but unfortunately failed in patients, thereby demonstrating that the results of experiments in mice are not always predictive of clinical efficacy...
June 7, 2017: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/28586319/rev-erb-and-ror-therapeutic-targets-for-treating-myopathies
#13
REVIEW
Ryan D Welch, Colin A Flaveny
Muscle is primarily known for its mechanical roles in locomotion, maintenance of posture, and regulation of cardiac and respiratory function. There are numerous medical conditions that adversely affect muscle, myopathies that disrupt muscle development, regeneration and protein turnover to detrimental effect. Skeletal muscle is also a vital secretory organ that regulates thermogenesis, inflammatory signaling and directs context specific global metabolic changes in energy substrate preference on a daily basis...
June 6, 2017: Physical Biology
https://www.readbyqxmd.com/read/28569388/longitudinal-associations-among-reading-related-skills-and-reading-comprehension-a-twin-study
#14
Florina Erbeli, Sara A Hart, Jeanette Taylor
This study investigated the etiology of longitudinal relations among kindergarten prereading skills, first-grade word level reading skills, and seventh-grade reading comprehension in 265 monozygotic and 459 dizygotic twin pairs (Mage  = 6.29 years in kindergarten) from the Florida Twin Project on Reading. Using a quadvariate Cholesky decomposition, results showed genetic, shared, and nonshared environmental overlap among prereading skills, word level reading skills, and reading comprehension. In addition, genetic and shared environmental overlap was indicated among word level reading skills and reading comprehension, outside the influence of prereading skills...
June 1, 2017: Child Development
https://www.readbyqxmd.com/read/28567113/research-ethics-governance-in-times-of-ebola
#15
Doris Schopper, Raffaella Ravinetto, Lisa Schwartz, Eunice Kamaara, Sunita Sheel, Michael J Segelid, Aasim Ahmad, Angus Dawson, Jerome Singh, Amar Jesani, Ross Upshur
The Médecins Sans Frontières (MSF) ethics review board (ERB) has been solicited in an unprecedented way to provide advice and review research protocols in an 'emergency' mode during the recent Ebola epidemic. Twenty-seven Ebola-related study protocols were reviewed between March 2014 and August 2015, ranging from epidemiological research, to behavioural research, infectivity studies and clinical trials with investigational products at (very) early development stages. This article examines the MSF ERB's experience addressing issues related to both the process of review and substantive ethical issues in this context...
April 2017: Public Health Ethics
https://www.readbyqxmd.com/read/28557187/automated-high-throughput-analysis-of-antiretroviral-drugs-in-dried-blood-spots
#16
U Duthaler, B Berger, S Erb, M Battegay, E Letang, S Gaugler, S Krähenbühl, M Haschke
For therapeutic drug monitoring (TDM) in remote settings, dried blood spots (DBS) are particularly advantageous, as blood sample collection and handling is uncomplicated. The aim of this study was to develop and validate an automated extraction method for the analysis of nevirapine, efavirenz, and lopinavir in DBS samples. Automated extraction was performed with methanol:water (70:30 v/v), using a DBS-MS 500 autosampler coupled to a LC-MS/MS system. The autosampler used digital images of each DBS to position the extraction head, sprayed 10 μL internal standard (IS) onto each DBS and extracted a 4 mm disk (Ø) from the centre of each spot by unilateral flow using 25 μl extraction solvent...
May 29, 2017: Journal of Mass Spectrometry: JMS
https://www.readbyqxmd.com/read/28553931/the-immunosuppressive-cytokine-interleukin-4-increases-the-clonogenic-potential-of-prostate-stem-like-cells-by-activation-of-stat6-signalling
#17
G Nappo, F Handle, F R Santer, R V McNeill, R I Seed, A T Collins, G Morrone, Z Culig, N J Maitland, H H H Erb
Interleukin-4 plays a critical role in the regulation of immune responses and has been detected at high levels in the tumour microenvironment of cancer patients, where concentrations correlate with the grade of malignancy. In prostate cancer, interleukin-4 has been associated with activation of the androgen receptor, increased proliferation and activation of survival pathways such as Akt and NF-κB. However, its role in therapy resistance has not yet been determined. Here we investigate the influence of interleukin-4 on primary epithelial cells from prostate cancer patients...
May 29, 2017: Oncogenesis
https://www.readbyqxmd.com/read/28544212/tanabe-prize-in-acid-base-catalysis-and-robert%C3%A2-b-anderson-catalysis-award-b-%C3%A2-m-weckhuysen-mrs-outstanding-young-investigator-award-j-%C3%A2-a-dionne-and-j-%C3%A2-m-rondinelli-vaam-research-prize-t-%C3%A2-j-erb
#18
https://www.readbyqxmd.com/read/28543266/evaluation-of-pre-reconstruction-interpolation-methods-for-iterative-reconstruction-of-radial-k-space-data
#19
Ye Tian, K C Erb, Ganesh Adluru, Devavrat Likhite, Apoorva Pedgaonkar, Michael Blatt, Srikant Kamesh Iyer, John Roberts, Edward DiBella
PURPOSE: To evaluate the use of three different pre-reconstruction interpolation methods to convert non-Cartesian k-space data to Cartesian samples such that iterative reconstructions can be performed more simply and more rapidly. METHODS: Phantom as well as cardiac perfusion radial datasets were reconstructed by four different methods. Three of the methods used pre-reconstruction interpolation once followed by a fast Fourier transform (FFT) at each iteration. The methods were: bilinear interpolation of nearest-neighbor points (BINN), 3-point interpolation, and a multi-coil interpolator called GRAPPA Operator Gridding (GROG)...
May 19, 2017: Medical Physics
https://www.readbyqxmd.com/read/28542558/improvement-of-non-key-traits-in-radiata-pine-breeding-programme-when-long-term-economic-importance-is-uncertain
#20
Yongjun Li, Heidi Dungey, Alvin Yanchuk, Luis A Apiolaza
Diameter at breast height (DBH), wood density (DEN) and predicted modulus of elasticity (PME) are considered as 'key traits' (KT) in the improvement in radiata pine breeding programmes in New Zealand. Any other traits which are also of interest to radiata pine breeders and forest growers are called 'non-key traits' (NKTs). External resin bleeding (ERB), internal checking (IC), number of heartwood rings (NHR) are three such non-key traits which affect wood quality of radiata pine timber. Economic importance of the KTs and NKTs is hard to define in radiata pine breeding programmes due to long rotation period...
2017: PloS One
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