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https://www.readbyqxmd.com/read/27923064/sparse-regression-based-structure-learning-of-stochastic-reaction-networks-from-single-cell-snapshot-time-series
#1
Anna Klimovskaia, Stefan Ganscha, Manfred Claassen
Stochastic chemical reaction networks constitute a model class to quantitatively describe dynamics and cell-to-cell variability in biological systems. The topology of these networks typically is only partially characterized due to experimental limitations. Current approaches for refining network topology are based on the explicit enumeration of alternative topologies and are therefore restricted to small problem instances with almost complete knowledge. We propose the reactionet lasso, a computational procedure that derives a stepwise sparse regression approach on the basis of the Chemical Master Equation, enabling large-scale structure learning for reaction networks by implicitly accounting for billions of topology variants...
December 2016: PLoS Computational Biology
https://www.readbyqxmd.com/read/27922603/digital-footprints-facilitating-large-scale-environmental-psychiatric-research-in-naturalistic-settings-through-data-from-everyday-technologies
#2
N Bidargaddi, P Musiat, V-P Makinen, M Ermes, G Schrader, J Licinio
Digital footprints, the automatically accumulated by-products of our technology-saturated lives, offer an exciting opportunity for psychiatric research. The commercial sector has already embraced the electronic trails of customers as an enabling tool for guiding consumer behaviour, and analogous efforts are ongoing to monitor and improve the mental health of psychiatric patients. The untargeted collection of digital footprints that may or may not be health orientated comprises a large untapped information resource for epidemiological scale research into psychiatric disorders...
December 6, 2016: Molecular Psychiatry
https://www.readbyqxmd.com/read/27921860/effects-of-cognitive-remediation-therapy-on-neurocognition-and-negative-symptoms-in-schizophrenia-an-italian-naturalistic-study
#3
Mariangela Lanfredi, Giacomo Deste, Clarissa Ferrari, Stefano Barlati, Laura Rosa Magni, Roberta Rossi, Luca de Peri, Marco Bonomi, Giuseppe Rossi, Antonio Vita
INTRODUCTION: Cognitive remediation therapy (CRT) has been reported to positively affect neurocognitive processes among patients with schizophrenia; however, the degree to which changes in cognition is linked to improved clinical symptoms, remains poorly understood. The current study aimed to investigate whether cognitive gains were associated to improvements in negative symptoms' severity in patients with schizophrenia living in two Italian psychiatric facilities. METHODS: Patients with a diagnosis of schizophrenia were consecutively assigned to CRT (n = 33) and compared with an historical control group (n = 28)...
December 6, 2016: Cognitive Neuropsychiatry
https://www.readbyqxmd.com/read/27921520/a-comparison-between-systemic-and-intratympanic-steroid-therapies-as-initial-therapy-for-idiopathic-sudden-sensorineural-hearing-loss-a-meta-analysis
#4
Qingfen Qiang, Xuewen Wu, Tao Yang, Chunguang Yang, Hong Sun
CONCLUSIONS: Intratympanic steroid (ITS) treatment groups exhibited better outcomes in PTA improvement and recovery rate than systemic steroid therapy (SST) groups. Whether initial hearing loss severity would influence the PTA improvement and recovery rate still requires further research. OBJECTIVE: This article was aimed at evaluating whether intratympanic steroid (ITS) treatment would provide benefits over systemic steroid therapy (SST) as initial therapy in patients with idiopathic sudden sensorineural hearing loss (ISSHL)...
December 6, 2016: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/27920390/life-history-trade-offs-the-intensity-of-competition-and-coexistence-in-novel-and-evolving-communities-under-climate-change
#5
Lesley T Lancaster, Gavin Morrison, Robert N Fitt
The consequences of climate change for local biodiversity are little understood in process or mechanism, but these changes are likely to reflect both changing regional species pools and changing competitive interactions. Previous empirical work largely supports the idea that competition will intensify under climate change, promoting competitive exclusions and local extinctions, while theory and conceptual work indicate that relaxed competition may in fact buffer communities from biodiversity losses that are typically witnessed at broader spatial scales...
January 19, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/27919394/the-other-side-of-the-coin-harm-due-to-the-non-use-of-health-related-data
#6
Kerina H Jones, Graeme Laurie, Leslie Stevens, Christine Dobbs, David V Ford, Nathan Lea
INTRODUCTION: It is widely acknowledged that breaches and misuses of health-related data can have serious implications and consequently they often carry penalties. However, harm due to the omission of health data usage, or data non-use, is a subject that lacks attention. A better understanding of this 'other side of the coin' is required before it can be addressed effectively. APPROACH: This article uses an international case study approach to explore why data non-use is difficult to ascertain, the sources and types of health-related data non-use, its implications for citizens and society and some of the reasons it occurs...
January 2017: International Journal of Medical Informatics
https://www.readbyqxmd.com/read/27918962/source-localization-of-epileptiform-discharges-in-juvenile-myoclonic-epilepsy-jme-using-magnetoencephalography-meg
#7
Veeranna Gadad, Sanjib Sinha, Narayanan Mariyappa, Ganne Chaithanya, Velmurugan Jayabal, Jitender Saini, Kandivel Thennarasu, Parthasarathy Satishchandra
OBJECTIVE: The purpose of this study is to localize the sources of epileptiform discharges (EDs), in juvenile myoclonic epilepsy (JME) using Magnetoencephalography (MEG), at three different time instances and analyze the propagation of EDs, from onset to offset, for inferring the cortical and subcortical region of involvement. METHODS: Twenty patients (age 23.5±6.3years old) with JME were recruited in this prospective study. MEG source analysis was performed on the independently collected EDs of each patient...
November 29, 2016: Epilepsy Research
https://www.readbyqxmd.com/read/27918638/small-molecule-microarray-based-discovery-of-parp14-inhibitors
#8
Bo Peng, Ann-Gerd Thorsell, Tobias Karlberg, Herwig Schüler, Shao Q Yao
Poly(ADP-ribose) polymerases (PARPs) are key enzymes in a variety of cellular processes. Most small-molecule PARP inhibitors developed to date have been against PARP1, and suffer from poor selectivity. PARP14 has recently emerged as a potential therapeutic target, but its inhibitor development has trailed behind. Herein, we describe a small molecule microarray-based strategy for high-throughput synthesis, screening of >1000 potential bidentate inhibitors of PARPs, and the successful discovery of a potent PARP14 inhibitor H10 with >20-fold selectivity over PARP1...
December 5, 2016: Angewandte Chemie
https://www.readbyqxmd.com/read/27918462/comparative-evaluation-of-trail-fgf-2-and-vegf-a-induced-angiogenesis-in-vitro-and-in-vivo
#9
Siân P Cartland, Scott W Genner, Amna Zahoor, Mary M Kavurma
Tumor necrosis-factor-related apoptosis-inducing ligand (TRAIL) has been implicated in angiogenesis; the growth of new blood vessels from an existing vessel bed. Our aim was to compare pro-angiogenic responses of TRAIL, vascular endothelial growth-factor-A (VEGF-A) and fibroblast growth-factor-2 (FGF-2) either separately (10 ng/mL) or in combination, followed by the assessment of proliferation, migration and tubule formation using human microvascular endothelial-1 (HMEC-1) cells in vitro. Angiogenesis was also measured in vivo using the Matrigel plug assay...
December 2, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27918078/nuclear-ca-2-signalling-in-arbuscular-mycorrhizal-and-actinorhizal-endosymbioses-on-the-trail-of-novel-underground-signals
#10
REVIEW
David G Barker, Mireille Chabaud, Guilia Russo, Andrea Genre
I. II. III. IV. References SUMMARY: Root endosymbioses are beneficial associations formed between terrestrial plants and either bacterial or fungal micro-organisms. A common feature of these intracellular symbioses is the requirement for mutual recognition between the two partners before host-regulated microbial entry. As part of this molecular dialogue, symbiosis-specific microbial factors set in motion a highly conserved plant signal transduction pathway, of which a central component is the activation of sustained nuclear Ca(2+) oscillations in target cells of the host epidermis...
December 5, 2016: New Phytologist
https://www.readbyqxmd.com/read/27917900/self-cleaning-of-surfaces-the-role-of-surface-wettability-and-dust-types
#11
Yun-Yun Quan, Li-Zhi Zhang, Rong-Hui Qi, Rong-Rong Cai
The self-cleaning property is usually connected to superhydrophobic surfaces (SHSs) where the dust particles can be easily removed by the rolling motion of droplets. It seems that superhydrophobicity (its durability is questionable nowadays) is a necessity. However here, it is disclosed that self-cleaning can also be realized on an ordinary surface by droplet impinging. The effects of surface wettability and the types of dust particles are considered. The self-cleaning is realized by two steps: (1) the pickup of particles by the water-air interface of an impinging droplet, (2) the release of the impinging droplets from the surface...
December 5, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27917384/genetic-alterations-in-intervertebral-disc-disease
#12
REVIEW
Nikolay L Martirosyan, Arpan A Patel, Alessandro Carotenuto, M Yashar S Kalani, Evgenii Belykh, Corey T Walker, Mark C Preul, Nicholas Theodore
BACKGROUND: Intervertebral disc degeneration (IVDD) is considered a multifactorial disease that is influenced by both environmental and genetic factors. The last two decades of research strongly demonstrate that genetic factors contribute about 75% of the IVDD etiology. Recent total genome sequencing studies have shed light on the various single-nucleotide polymorphisms (SNPs) that are associated with IVDD. AIM: This review presents comprehensive and updated information about the diversity of genetic factors in the inflammatory, degradative, homeostatic, and structural systems involved in the IVDD...
2016: Frontiers in Surgery
https://www.readbyqxmd.com/read/27916386/beneficial-effect-of-bilingualism-on-alzheimer-s-disease-csf-biomarkers-and-cognition
#13
Ainara Estanga, Mirian Ecay-Torres, Almudena Ibañez, Andrea Izagirre, Jorge Villanua, Maite Garcia-Sebastian, M Teresa Iglesias Gaspar, Ane Otaegui-Arrazola, Ane Iriondo, Monserrat Clerigue, Pablo Martinez-Lage
Bilingualism as a component of cognitive reserve has been claimed to delay the onset of Alzheimer's disease (AD). However, its effect on cerebrospinal fluid (CSF) AD-biomarkers has not been investigated. We assessed cognitive performance and CSF AD-biomarkers, and potential moderation effect of bilingualism on the association between age, CSF AD-biomarkers, and cognition. Cognitively healthy middle-aged participants classified as monolinguals (n = 100, nCSF = 59), early (n = 81, nCSF = 55) and late bilinguals (n = 97, nCSF = 52) were evaluated...
December 1, 2016: Neurobiology of Aging
https://www.readbyqxmd.com/read/27915067/the-feasibility-and-effects-of-acupuncture-in-an-adolescent-nordic-ski-population
#14
Kristin L Garlanger, William H Fredericks, Alexander Do, Brent A Bauer, Edward R Laskowski
BACKGROUND: Studies investigating the use and effectiveness of acupuncture in adults post exercise have been well documented. Fewer studies involving acupuncture have been completed in the adolescent athlete population. To our knowledge there are no published studies that investigate the use of acupuncture in adolescent athletes within their field of play. OBJECTIVE: To primarily assess the feasibility of performing acupuncture in adolescent Nordic skiers within their athletic environment, and secondarily to measure the effect of acupuncture on muscle soreness and sense of well-being...
November 30, 2016: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/27914809/actein-enhances-trail-effects-on-suppressing-gastric-cancer-progression-by-activating-p53-caspase-3-signaling
#15
Zhi-Chao Yang, Ji Ma
Actein (ACT), isolated from the rthizomes of Cimicifuga foetida, is a triterpene glycoside, showing inhibitory role in breast cancer cells. However, the effects of ACT treatment on gastric cancer have little been known. Thus, the study is conducted to explore the in vitro and in vivo role of ACT in gastric cancer. And the interactions between ACT and tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) were investigated in gastric cancer cells. A synergistic effect of ACT and TRAIL combination on apoptosis induction in gastric cancer cells was observed...
November 30, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27914418/direct-noise-simulation-of-a-canonical-high-lift-device-and-comparison-with-an-analytical-model
#16
Pablo Salas, Guillaume Fauquembergue, Stéphane Moreau
The noise of a canonical main-element/flap high-lift device (HLD) is computed directly using compressible wall-resolved Large Eddy Simulation. An experimental database for the chosen configuration allows us to successfully validate the chosen numerical approach. Both the noise sources and the far-field acoustic pressure are shown to be well predicted. Although the two elements trailing-edge noise can be observed in the near field, the flap remains as the dominant source in the far-field. The simplicity of the studied configuration enables the comparison of the validated numerical results with a recently developed analytical model that takes into account the diffraction of the flap noise by the main-element...
September 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27913387/using-multivariate-base-rates-to-interpret-low-scores-on-an-abbreviated-battery-of-the-delis-kaplan-executive-function-system
#17
Justin E Karr, Mauricio A Garcia-Barrera, James A Holdnack, Grant L Iverson
OBJECTIVE: Executive function consists of multiple cognitive processes that operate as an interactive system to produce volitional goal-oriented behavior, governed in large part by frontal microstructural and physiological networks. Identification of deficits in executive function in those with neurological or psychiatric conditions can be difficult because the normal variation in executive function test scores, in healthy adults when multiple tests are used, is largely unknown. This study addresses that gap in the literature by examining the prevalence of low scores on a brief battery of executive function tests...
December 1, 2016: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/27910206/balance-between-il-3-and-type-iinterferons-and-their-interrelationship-with-fasl-dictates-lifespan-and-effector-functions-of-human-basophils
#18
B R Hagmann, A Odermatt, T Kaufmann, C A Dahinden, M Fux
BACKGROUND: In contrast to eosinophils and neutrophils, the regulation of the lifespan of human basophils is poorly defined, with the exception of the potent anti-apoptotic effect of IL-3 that also promotes pro-inflammatory effector functions and phenotypic changes. Type I IFNs (IFN-α, IFN-β), which are well known for their anti-viral activities, have the capacity to inhibit allergic inflammation. OBJECTIVE: To elucidate whether type I IFNs have the potential to abrogate the lifespan and/or effector functions of human basophils...
November 5, 2016: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27909126/medium-term-outcomes-of-the-universal-2-total-wrist-arthroplasty-in-patients-with-rheumatoid-arthritis
#19
R Badge, K Kailash, D R Dickson, S Mahalingam, A Raza, A Birch, D Nuttall, S R Murali, M J Hayton, S Talwalkar, A C Watts, I A Trail
AIMS: The aims of this study were to evaluate the clinical and radiological outcomes of the Universal-2 total wrist arthroplasty (TWA) in patients with rheumatoid arthritis. PATIENTS AND METHODS: This was a retrospective review of all 95 Universal-2 TWAs which were performed in our institution between 2003 to 2012 in patients with rheumatoid arthritis. A total of six patients were lost to follow-up and two died of unrelated causes. A total of ten patients had bilateral procedures...
December 2016: Bone & Joint Journal
https://www.readbyqxmd.com/read/27905159/the-interaction-of-sleep-and-amyloid-deposition-on-cognitive-performance
#20
Jennifer R V Molano, Catherine M Roe, Yo-El S Ju
Sleep difficulties are emerging as a risk factor for dementia. This study examined the effect of sleep and amyloid deposition on cognitive performance in cognitively normal adults. Sleep efficiency was determined by actigraphy. Cerebrospinal fluid Aβ42 levels <500 pg mL(-1) , indicating amyloid deposition, was present in 23 participants. Psychometric tests included the Free and Cued Selective Reminding Test, Trail Making Test A and B, Animal Fluency, Letter Number Sequencing, and the Mini Mental State Examination...
December 1, 2016: Journal of Sleep Research
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