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https://www.readbyqxmd.com/read/28231445/principles-of-systems-biology-no-14
#1
(no author information available yet)
This month: sage advice from phage to their offspring; systematic analyses of protein quality control, mitochondrial respiration, and woody biomass; a continental-scale experiment; and engineered protein tools galore.
February 22, 2017: Cell Systems
https://www.readbyqxmd.com/read/28227077/optimal-control-of-inspired-perfluorocarbon-temperature-for-induction-of-hypothermia-by-total-liquid-ventilation-in-juvenile-lamb-model
#2
Mathieu Nadeau, Michael Sage, Jean-Paul Praud, Renaud Tissier, Herve Walti, Philippe Micheau, Mathieu Nadeau, Michael Sage, Jean-Paul Praud, Renaud Tissier, Herve Walti, Philippe Micheau, Michael Sage, Philippe Micheau, Jean-Paul Praud, Mathieu Nadeau, Herve Walti, Renaud Tissier
Mild hypothermia is well known for its therapeutic value in cardio- and neuroprotection. Many recent experimental studies have shown that the swiftness of the cooling offered by total liquid ventilation (TLV) holds great promise in achieving maximal therapeutic effect. TLV is an emerging ventilation technique in which the lungs are filled with breathable liquids, namely perfluorocarbons (PFCs). A liquid ventilator ensures subject ventilation by periodically renewing a volume of oxygenated, CO2-free and temperature-controlled breathable PFC...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28220783/an-integrative-approach-unveils-fosl1-as-an-oncogene-vulnerability-in-kras-driven-lung-and-pancreatic-cancer
#3
Adrian Vallejo, Naiara Perurena, Elisabet Guruceaga, Pawel K Mazur, Susana Martinez-Canarias, Carolina Zandueta, Karmele Valencia, Andrea Arricibita, Dana Gwinn, Leanne C Sayles, Chen-Hua Chuang, Laura Guembe, Peter Bailey, David K Chang, Andrew Biankin, Mariano Ponz-Sarvise, Jesper B Andersen, Purvesh Khatri, Aline Bozec, E Alejandro Sweet-Cordero, Julien Sage, Fernando Lecanda, Silve Vicent
KRAS mutated tumours represent a large fraction of human cancers, but the vast majority remains refractory to current clinical therapies. Thus, a deeper understanding of the molecular mechanisms triggered by KRAS oncogene may yield alternative therapeutic strategies. Here we report the identification of a common transcriptional signature across mutant KRAS cancers of distinct tissue origin that includes the transcription factor FOSL1. High FOSL1 expression identifies mutant KRAS lung and pancreatic cancer patients with the worst survival outcome...
February 21, 2017: Nature Communications
https://www.readbyqxmd.com/read/28216438/porphyromonas-gingivalis-lipopolysaccharide-induces-pro-inflammatory-adipokine-secretion-and-oxidative-stress-by-regulating-toll-like-receptor-mediated-signaling-pathways-and-redox-enzymes-in-adipocytes
#4
Fanny Le Sage, Olivier Meilhac, Marie-Paule Gonthier
Gut microbiota LPS contributes to obesity-related chronic inflammation and oxidative stress, promoting insulin resistance. Periodontal disease also represents a risk factor for type 2 diabetes and is associated with obesity. This study compared the effect of LPS from P. gingivalis periodontopathogen and E. coli enterobacteria on inflammatory adipokine secretion and redox status of 3T3-L1 adipocytes. We found that both LPS activated TLR2- and TLR4-mediated signaling pathways involving MyD88 adaptor and NFκB transcription factor, leading to an increased secretion of leptin, resistin, IL-6 and MCP-1...
February 16, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28212675/sex-differences-in-the-association-of-skin-advanced-glycation-endproducts-with-knee-osteoarthritis-progression
#5
Charles B Eaton, Maria Sayeed, Syeda Ameernaz, Mary B Roberts, John D Maynard, Jeffrey B Driban, Timothy E McAlindon
BACKGROUND: The accumulation of advanced glycation endproducts in articular cartilage has been suggested as an etiologic factor in the development and progression of knee osteoarthritis (KOA). METHODS: We conducted a prospective cohort study of skin advanced glycation endproducts (sAGEs) measured non-invasively by skin intrinsic fluorescence and the relationship between sAGE KOA progression in 160 men and 287 women in a sub-cohort of the Osteoarthritis Initiative at a single site...
February 17, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28197156/fine-mapping-of-carbon-assimilation-rate-8-a-quantitative-trait-locus-for-flag-leaf-nitrogen-content-stomatal-conductance-and-photosynthesis-in-rice
#6
Shunsuke Adachi, Kazuaki Yoshikawa, Utako Yamanouchi, Takanari Tanabata, Jian Sun, Taiichiro Ookawa, Toshio Yamamoto, Rowan F Sage, Tadashi Hirasawa, Junichi Yonemaru
Increasing the rate of leaf photosynthesis is one important approach for increasing grain yield in rice (Oryza sativa). Exploiting the natural variation in CO2 assimilation rate (A) between rice cultivars using quantitative genetics is one promising means to identify genes contributing to higher photosynthesis. In this study, we determined precise location of Carbon Assimilation Rate 8 (CAR8) by crossing a high-yielding indica cultivar with a Japanese commercial cultivar. Fine mapping suggested that CAR8 encodes a putative Heme Activator Protein 3 (OsHAP3) subunit of a CCAAT-box-binding transcription factor called OsHAP3H...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28196596/chemosensitive-relapse-in-small-cell-lung-cancer-proceeds-through-an-ezh2-slfn11-axis
#7
Eric E Gardner, Benjamin H Lok, Valentina E Schneeberger, Patrice Desmeules, Linde A Miles, Paige K Arnold, Andy Ni, Inna Khodos, Elisa de Stanchina, Thuyen Nguyen, Julien Sage, John E Campbell, Scott Ribich, Natasha Rekhtman, Afshin Dowlati, Pierre P Massion, Charles M Rudin, John T Poirier
Small cell lung cancer is initially highly responsive to cisplatin and etoposide but in almost every case becomes rapidly chemoresistant, leading to death within 1 year. We modeled acquired chemoresistance in vivo using a series of patient-derived xenografts to generate paired chemosensitive and chemoresistant cancers. Multiple chemoresistant models demonstrated suppression of SLFN11, a factor implicated in DNA-damage repair deficiency. In vivo silencing of SLFN11 was associated with marked deposition of H3K27me3, a histone modification placed by EZH2, within the gene body of SLFN11, inducing local chromatin condensation and gene silencing...
February 13, 2017: Cancer Cell
https://www.readbyqxmd.com/read/28194949/single-cell-profiling-using-ionic-liquid-matrix-enhanced-secondary-ion-mass-spectrometry-for-neuronal-cell-type-differentiation
#8
Thanh D Do, Troy J Comi, Sage J B Dunham, Stanislav S Rubakhin, Jonathan V Sweedler
A high-throughput single cell profiling method has been developed for matrix-enhanced-secondary ion mass spectrometry (ME-SIMS) to investigate the lipid profiles of neuronal cells. Populations of cells are dispersed onto the substrate, their locations determined using optical microscopy, and the cell locations used to guide the acquisition of SIMS spectra from the cells. Up to 2,000 cells can be assayed in one experiment at a rate of 6 s per cell. Multiple saturated and unsaturated phosphatidylcholines (PCs) and their fragments are detected and verified with tandem mass spectrometry from individual cells when ionic liquids are employed as a matrix...
February 10, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28191677/uvb-represses-melanocyte-cell-migration-and-acts-through-%C3%AE-catenin
#9
Juliette U Bertrand, Valérie Petit, Elke Hacker, Irina Berlin, Nicholas K Hayward, Marie Pouteaux, Evelyne Sage, David C Whiteman, Lionel Larue
The exposure of skin to ultraviolet (UV) radiation can have both beneficial and deleterious effects: it can lead, for instance, to increased pigmentation and vitamin D synthesis but also to inflammation and skin cancer. UVB may induce genetic and epigenetic alterations, and have reversible effects associated with post-translational and gene regulation modifications. β-catenin is a main driver in melanocyte development; although infrequently mutated in melanoma, its cellular localization and activity is frequently altered...
February 13, 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/28185744/dengue-vaccine-who-position-paper-july-2016-recommendations
#10
World Health Organization
This article presents the World Health Organization's (WHO) recommendations on the use of dengue vaccine excerpted from the WHO position paper on dengue vaccine published in the Weekly epidemiological Record in July 2016 (Dengue vaccine: WHO position paper, 2016) [1]. The current document is the first WHO position paper on dengue vaccination and focuses primarily on the available evidence concerning the only dengue vaccine to have been registered by National Regulatory Authorities. The position paper gives consideration to the epidemiological features of the disease and assesses the potential use of the vaccine for public health benefits...
March 1, 2017: Vaccine
https://www.readbyqxmd.com/read/28183190/online-information-seeking-behaviors-of-parents-of-children-with-adhd
#11
Adam Sage, Delesha Carpenter, Robyn Sayner, Kathleen Thomas, Larry Mann, Sandy Sulzer, Adrian Sandler, Betsy Sleath
This article describes ( a) parent questions about ADHD (attention deficit/hyperactivity disorder), ( b) parent Internet use to seek ADHD information, and ( c) associations between type of Internet access and ADHD information-seeking. Seventy parents of children (ages 7-17 years) with ADHD completed questionnaires after their child's visit with their pediatrician. Bivariate relationships were assessed using chi-square statistics, Pearson correlation coefficients, or t tests. Parents identified an average of 8...
February 1, 2017: Clinical Pediatrics
https://www.readbyqxmd.com/read/28183102/-i-gomphus-i-i-kinzelbachi-i-schneider-1984-in-iran-identification-habitat-and-behaviour-odonata-gomphidae
#12
Thomas Schneider, Dietmar Ikemeyer, Sónia Ferreira, Ole Müller
Gomphus kinzelbachi was described by Wolfgang Schneider (1984) on the basis of a single teneral male captured by B. L. Sage on the Alwand River in eastern Iraq. In late April to early May 2016 two of the authors (TS and DI) discovered three individual-rich populations of this species on the large lowland river Karkeh in southwestern Iran (Khuzestãn). This is the first report of a breeding population of this species. Based on collected material we confirmed the structural differences of the male secondary genitalia between G...
January 11, 2017: Zootaxa
https://www.readbyqxmd.com/read/28179585/oncogenomic-disruptions-in-arsenic-induced-carcinogenesis
#13
REVIEW
Adam P Sage, Brenda C Minatel, Kevin W Ng, Greg L Stewart, Trevor J B Dummer, Wan L Lam, Victor D Martinez
Chronic exposure to arsenic affects more than 200 million people worldwide, and has been associated with many adverse health effects, including cancer in several organs. There is accumulating evidence that arsenic biotransformation, a step in the elimination of arsenic from the human body, can induce changes at a genetic and epigenetic level, leading to carcinogenesis. At the genetic level, arsenic interferes with key cellular processes such as DNA damage-repair and chromosomal structure, leading to genomic instability...
January 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28178990/review-of-behaviour-change-interventions-to-reduce-population-salt-intake
#14
REVIEW
Kathy Trieu, Emma McMahon, Joseph Alvin Santos, Adrian Bauman, Kellie-Ann Jolly, Bruce Bolam, Jacqui Webster
BACKGROUND: Excess salt intake is a major cause of raised blood pressure-the leading risk factor for death and disability worldwide. Although behaviour change interventions such as awareness campaigns and health education programs are implemented to reduce salt intake, their effectiveness is unclear. This global systematic review investigates the impact of population-level behaviour change interventions that aim to reduce salt intake. METHODS: A search for published and grey literature was conducted using PubMed, Cochrane Library, Embase, Web of Science, Sage, Scopus, OpenGrey, Google Scholar and other relevant organizations' websites...
February 8, 2017: International Journal of Behavioral Nutrition and Physical Activity
https://www.readbyqxmd.com/read/28177640/cross-plane-seebeck-coefficient-measurement-of-misfit-layered-compounds-snse-n-tise2-n-n-1-3-4-5
#15
Zhen Li, Sage R Bauers, Nirakar Poudel, Danielle M Hamann, Xiaoming Wang, David Choi, Keivan Esfarjani, Li Shi, David C Johnson, Stephen B Cronin
We report cross-plane thermoelectric measurements of misfit layered compounds (SnSe)n(TiSe2)n (n=1,3,4,5), approximately 50nm thick. Metal resistance thermometers are fabricated on the top and bottom of the (SnSe)n(TiSe2)n material to measure the temperature difference and heat transport through the material directly. By varying the number of layers in a supercell, n, we vary the interface density while maintaining a constant global stoichiometry. The Seebeck coefficient measured across the (SnSe)n(TiSe2)n samples was found to depend strongly on the number of layers in the supercell (n)...
February 8, 2017: Nano Letters
https://www.readbyqxmd.com/read/28167730/poor-relations-connecting-waste-need-and-health-spending
#16
William M Sage
No abstract text is available yet for this article.
February 1, 2017: Health Affairs
https://www.readbyqxmd.com/read/28156585/pilot-study-of-incorporating-a-supportive-care-program-into-a-small-community-oncology-practice
#17
Kelly Schultz, Jennifer Thompson, Michael Thomas Byrne, Andrew J Buresh, Brendan F Curley
: 149 Background: Incorporation of supportive care has become standard of care in patients with advanced or metastatic cancer undergoing palliative chemotherapy. Implementation of a supportive care program is often difficult in a small community practice due to a multitude of factors. METHODS: We piloted a supportive care program with the partnership of Sage Hospice & Palliative Care in which patients with advanced or metastatic cancer undergoing chemotherapy would be evaluated by a certified nurse practitioner (CNP)...
October 9, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28148471/a-self-regulation-theory-based-asthma-management-mobile-app-for-adolescents-a-usability-assessment
#18
Adam Sage, Courtney Roberts, Lorie Geryk, Betsy Sleath, Deborah Tate, Delesha Carpenter
BACKGROUND: Self-regulation theory suggests people learn to influence their own behavior through self-monitoring, goal-setting, feedback, self-reward, and self-instruction, all of which smartphones are now capable of facilitating. Several mobile apps exist to manage asthma; however, little evidence exists about whether these apps employ user-centered design processes that adhere to government usability guidelines for mobile apps. OBJECTIVE: Building upon a previous study that documented adolescent preferences for an asthma self-management app, we employed a user-centered approach to assess the usability of a high-fidelity wireframe for an asthma self-management app intended for use by adolescents with persistent asthma...
February 1, 2017: JMIR Human Factors
https://www.readbyqxmd.com/read/28143625/potential-benefits-of-phytochemicals-against-alzheimer-s-disease
#19
Emma L Wightman
Our current therapeutic drugs for Alzheimer's disease are predominantly derived from the alkaloid class of plant phytochemicals. These drugs, such as galantamine and rivastigmine, attenuate the decline in the cholinergic system but, as the alkaloids occupy the most dangerous end of the phytochemical spectrum (indeed they function as feeding deterrents and poisons to other organisms within the plant itself), they are often associated with unpleasant side effects. In addition, these cholinesterase inhibiting alkaloids target only one system in a disorder, which is typified by multifactorial deficits...
February 1, 2017: Proceedings of the Nutrition Society
https://www.readbyqxmd.com/read/28132785/allosteric-mutant-idh1-inhibitors-reveal-mechanisms-for-idh1-mutant-and-isoform-selectivity
#20
Xiaoling Xie, Daniel Baird, Kimberly Bowen, Vladimir Capka, Jinyun Chen, Gregg Chenail, YoungShin Cho, Julia Dooley, Ali Farsidjani, Pascal Fortin, Darcy Kohls, Raviraj Kulathila, Fallon Lin, Daniel McKay, Lindsey Rodrigues, David Sage, Simon van der Plas, Kirk Wright, Ming Xu, Hong Yin, Julian Levell, Raymond A Pagliarini
Oncogenic IDH1 and IDH2 mutations contribute to cancer via production of R-2-hydroxyglutarate (2-HG). Here, we characterize two structurally distinct mutant- and isoform-selective IDH1 inhibitors that inhibit 2-HG production. Both bind to an allosteric pocket on IDH1, yet shape it differently, highlighting the plasticity of this site. Oncogenic IDH1(R132H) mutation destabilizes an IDH1 "regulatory segment," which otherwise restricts compound access to the allosteric pocket. Regulatory segment destabilization in wild-type IDH1 promotes inhibitor binding, suggesting that destabilization is critical for mutant selectivity...
January 18, 2017: Structure
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