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https://www.readbyqxmd.com/read/29334664/methyl-dehydroabietate-counters-high-fat-diet-induced-insulin-resistance-and-hepatic-steatosis-by-modulating-peroxisome-proliferator-activated-receptor-signaling-in-mice
#1
Hiroki Yoshioka, Yuki Mizuno, Tomohiro Yamaguchi, Yoshimi Ichimaru, Koichi Takeya, Yukio Hitotsuyanagi, Tsunemasa Nonogaki, Yutaka Aoyagi
The aim of this study was to investigate the therapeutic effects of methyl dehydroabietate (mDA) on adipocyte differentiation in 3T3-L1 preadipocytes and obesity characteristics induced by high-fat diet (HFD) in mice. Adipocyte differentiation in 3T3-L1 cells was evaluated after 14 days of incubation with mDA. mDA enhanced adipocyte differentiation in 3T3-L1 cells. For the in vivo evaluation, five-week-old male C57BL/6J mice were fed HFD or normal CE-2 diet (control) for eight weeks. During the experimental period, mice were administered mDA (50 mg/kg, p...
January 12, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29334413/features-of-auxiliaries-that-enable-native-chemical-ligation-beyond-glycine-and-cleavage-via-radical-fragmentation
#2
Simon Ferdinand Loibl, Andre Dallmann, Kathleen Hennig, Carmen Juds, Oliver Seitz
The native chemical ligation (NCL) is an invaluable tool in the total chemical synthesis of proteins. Ligation auxiliaries overcome the requirement for cysteine. However, the reported auxiliaries remained limited to glycine-containing ligation sites and the acidic conditions applied for cleavage of the typically applied N-benzyl-type linkages promote side reactions. With the aim to improve upon both ligation and cleavage, we systematically investigated alternative ligation scaffolds that challenge the N-benzyl dogma...
January 15, 2018: Chemistry: a European Journal
https://www.readbyqxmd.com/read/29334322/plasma-brain-derived-neurotrophic-factor-pbdnf-and-executive-dysfunctions-in-patients-with-major-depressive-disorder
#3
Stefanie Wagner, Sarah Kayser, Jan Engelmann, Konrad F Schlicht, Nadine Dreimüller, Oliver Tüscher, Florian Müller-Dahlhaus, Dieter F Braus, André Tadić, Alexandra Neyazi, Helge Frieling, Klaus Lieb
OBJECTIVES: Executive dysfunctions are frequently seen in patients with Major Depressive Disorder (MDD) and normalize in many cases during effective antidepressant therapy. This study investigated whether a normalization of executive dysfunctions during antidepressant treatment correlates with or can be predicted by clinical parameters or levels of brain-derived neurotrophic factor (BDNF). METHODS: In 110 MDD patients with executive dysfunctions (percentile < 16), executive functions and plasma BDNF levels were analysed at baseline, day 14 and 56 of an antidepressant treatment...
January 15, 2018: World Journal of Biological Psychiatry
https://www.readbyqxmd.com/read/29333499/sick-note-to-fit-note-one-trust-s-project-to-improve-usage-by-hospital-clinicians
#4
Amy Moran, Cathryn Mainwaring, Oliver Keane, Thomas Sanctuary, Kathryn Watson, Tunji Lasoye
Introduction: In April 2010, the government introduced a new Statement of Fitness to Work or 'Fit Note' for patients requiring time off of work or adaptations to their work due to illness. Responsibility to issue these documents has shifted from primary to secondary care. Hospital clinicians are required to issue for inpatients and for outpatients where clinical responsibility has not been taken over by the general practitioner (GP). However, awareness of this change is lacking. Misdirecting patients to their GP for the sole purpose of receiving a 'Fit Note' is an unnecessary use of appointment time and negatively impacts on patients...
2018: BMJ Open Quality
https://www.readbyqxmd.com/read/29333473/charge-migration-and-charge-transfer-in-molecular-systems
#5
REVIEW
Hans Jakob Wörner, Christopher A Arrell, Natalie Banerji, Andrea Cannizzo, Majed Chergui, Akshaya K Das, Peter Hamm, Ursula Keller, Peter M Kraus, Elisa Liberatore, Pablo Lopez-Tarifa, Matteo Lucchini, Markus Meuwly, Chris Milne, Jacques-E Moser, Ursula Rothlisberger, Grigory Smolentsev, Joël Teuscher, Jeroen A van Bokhoven, Oliver Wenger
The transfer of charge at the molecular level plays a fundamental role in many areas of chemistry, physics, biology and materials science. Today, more than 60 years after the seminal work of R. A. Marcus, charge transfer is still a very active field of research. An important recent impetus comes from the ability to resolve ever faster temporal events, down to the attosecond time scale. Such a high temporal resolution now offers the possibility to unravel the most elementary quantum dynamics of both electrons and nuclei that participate in the complex process of charge transfer...
November 2017: Structural Dynamics (Melville, N.Y.)
https://www.readbyqxmd.com/read/29332796/direct-olive-oil-analysis-by-mass-spectrometry-a-comparison-of-different-ambient-ionization-methods
#6
Felipe J Lara-Ortega, Miriam Beneito-Cambra, José Robles-Molina, Juan F García-Reyes, Bienvenida Gilbert-López, Antonio Molina-Díaz
Analytical methods based on ambient ionization mass spectrometry (AIMS) combine the classic outstanding performance of mass spectrometry in terms of sensitivity and selectivity along with convenient features related to the lack of sample workup required. In this work, the performance of different mass spectrometry-based methods has been assessed for the direct analyses of virgin olive oil for quality purposes. Two sets of experiments have been setup: (1) direct analysis of untreated olive oil using AIMS methods such as Low-Temperature Plasma Mass Spectrometry (LTP-MS) or paper spray mass spectrometry (PS-MS); or alternatively (2) the use of atmospheric pressure ionization (API) mass spectrometry by direct infusion of a diluted sample through either atmospheric pressure chemical ionization (APCI) or electrospray (ESI) ionization sources...
April 1, 2018: Talanta
https://www.readbyqxmd.com/read/29332007/impacts-of-canada-s-minimum-age-for-tobacco-sales-mats-laws-on-youth-smoking-behaviour-2000-2014
#7
Russell Clarence Callaghan, Marcos Sanches, Jodi Gatley, James K Cunningham, Michael Oliver Chaiton, Robert Schwartz, Susan Bondy, Claire Benny
BACKGROUND: Recently, the US Institute of Medicine has proposed that raising the minimum age for tobacco purchasing/sales to 21 years would likely lead to reductions in smoking behavior among young people. Surprisingly few studies, however, have assessed the potential impacts of minimum-age tobacco restrictions on youth smoking. OBJECTIVE: To estimate the impacts of Canadian minimum age for tobacco sales (MATS) laws on youth smoking behaviour. DESIGN: A regression-discontinuity design, using seven merged cycles of the Canadian Community Health Survey, 2000-2014...
January 13, 2018: Tobacco Control
https://www.readbyqxmd.com/read/29331350/construction-of-pogoduet-an-inducible-bicistronic-vector-for-synthesis-of-recombinant-proteins-in-corynebacterium-glutamicum
#8
Oliver Goldbeck, Gerd M Seibold
The Gram-positive Corynebacterium glutamicum is widely known for its application in the industrial production of amino acids and as a non-pathogenic model organism for cell wall biosynthesis in the group of CMN bacteria. For biotechnological and physiological studies often co-expression of recombinant genes is required, however for C. glutamicum no vector for the independent co-expression of two genes was described. We here created the novel expression vector pOGOduet for C. glutamicum, which carries the ColE1 replicon of E...
January 10, 2018: Plasmid
https://www.readbyqxmd.com/read/29331281/-do-online-ratings-reflect-structural-differences-in-healthcare-the-example-of-german-physician-rating-websites
#9
Nina Meszmer, Lena Jaegers, Oliver Schöffski, Martin Emmert
BACKGROUND: Previous surveys have shown that patient satisfaction varies with the regional supply of physicians. Online ratings on physician-rating websites represent a relatively new instrument to display patient satisfaction results. The aim of this study was (1) to assess the current state of online ratings for two medical disciplines (dermatologists and ear, nose and throat (ENT) specialists), and (2) to analyze online derived patient satisfaction results according to the physician density in Germany...
January 10, 2018: Zeitschrift Für Evidenz, Fortbildung und Qualität Im Gesundheitswesen
https://www.readbyqxmd.com/read/29331043/role-of-mir-203-in-estrogen-receptor-mediated-signaling-in-the-rat-uterus-and-endometrial-carcinoma
#10
Oliver Zierau, Janina Helle, Sabina Schadyew, Yanni Morgenroth, Martin Bentler, Alexander Hennig, Sridar Chittur, Martin Tenniswood, Georg Kretzschmar
The role of microRNAs (miRNA) in estrogen receptor (ER) signaling in the uterus and in endometrial cancer is not well understood. We therefore analyzed miRNA expression in uterine samples from a standard three-day uterotrophic assay using young female adult rats to identify E2-regulated miRNAs. Microarray analysis identified 47 E2 down-regulated miRNAs including miR-30a, and 25 E2up-regulated miRNAs including miR-672, miR-203 and miR-146b. The strongly E2-upregulated miR-203 was selected for further analysis...
January 13, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29331015/detection-of-human-disease-conditions-by-single-cell-morpho-rheological-phenotyping-of-blood
#11
Nicole Toepfner, Christoph Herold, Oliver Otto, Philipp Rosendahl, Angela Jacobi, Martin Kräter, Julia Stächele, Leonard Menschner, Maik Herbig, Laura Ciuffreda, Lisa Ranford-Cartwright, Michal Grzybek, Ünal Coskun, Elisabeth Reithuber, Genevieve Garriss, Peter Mellroth, Birgitta Henriques Normark, Nicola Tregay, Meinolf Suttorp, Martin Bornhäuser, Edwin R Chilvers, Reinhard Berner, Jochen Guck
Blood is arguably the most important bodily fluid and its analysis provides crucial health status information. A first routine measure to narrow down diagnosis in clinical practice is the differential blood count, determining the frequency of all major blood cells. What is lacking to advance initial blood diagnostics is an unbiased and quick functional assessment of blood that can narrow down the diagnosis and generate specific hypotheses. To address this need, we introduce the continuous, cell-by-cell morpho-rheological (MORE) analysis of diluted whole blood, without labeling, enrichment or separation, at rates of 1,000 cells/sec...
January 13, 2018: ELife
https://www.readbyqxmd.com/read/29330855/getting-innovative-therapies-faster-to-patients-at-the-right-dose-impact-of-quantitative-pharmacology-towards-first-registration-and-expanding-therapeutic-use
#12
Satyaprakash Nayak, Oliver Sander, Nidal Al-Huniti, Dinesh de Alwis, Anne Chain, Marylore Chenel, Soujanya Sunkaraneni, Shruti Agrawal, Neeraj Gupta, Sandra A G Visser
Quantitative pharmacology (QP) applications in translational medicine, drug-development, and therapeutic use were crowd-sourced by the ASCPT Impact and Influence initiative. Highlighted QP case studies demonstrated faster access to innovative therapies for patients through 1) rational dose selection for pivotal trials; 2) reduced trial-burden for vulnerable populations; or 3) simplified posology. Critical success factors were proactive stakeholder engagement, alignment on the value of model-informed approaches, and utilizing foundational clinical pharmacology understanding of the therapy...
January 13, 2018: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/29330573/tocotrienol-supplementation-suppressed-bone-resorption-and-oxidative-stress-in-postmenopausal-osteopenic-women-a-12-week-randomized-double-blinded-placebo-controlled-trial
#13
C-L Shen, S Yang, M D Tomison, A W Romero, C K Felton, H Mo
Tocotrienols have shown bone-protective effect in animals. This study showed that a 12-week tocotrienol supplementation decreased concentrations of bone resorption biomarker and bone remodeling regulators via suppressing oxidative stress in postmenopausal osteopenic women. INTRODUCTION: Tocotrienols (TT) have been shown to benefit bone health in ovariectomized animals, a model of postmenopausal women. The purpose of this study was to evaluate the effect of 12-week TT supplementation on bone markers (serum bone-specific alkaline phosphatase (BALP), urine N-terminal telopeptide (NTX), serum soluble receptor activator of nuclear factor-kappaB ligand (sRANKL), and serum osteoprotegerin (OPG)), urine calcium, and an oxidative stress biomarker (8-hydroxy-2'-deoxyguanosine (8-OHdG)) in postmenopausal women with osteopenia...
January 12, 2018: Osteoporosis International
https://www.readbyqxmd.com/read/29330545/de-novo-bk-channel-variant-causes-epilepsy-by-affecting-voltage-gating-but-not-ca2-sensitivity
#14
Xia Li, Sibylle Poschmann, Qiuyun Chen, Walid Fazeli, Nelly Jouayed Oundjian, Francesca M Snoeijen-Schouwenaars, Oliver Fricke, Erik-Jan Kamsteeg, Marjolein Willemsen, Qing Kenneth Wang
Epilepsy is one of the most common neurological diseases and it causes profound morbidity and mortality. We identified the first de novo variant in KCNMA1 (c.2984 A > G (p.(N995S)))-encoding the BK channel-that causes epilepsy, but not paroxysmal dyskinesia, in two independent families. The c.2984 A > G (p.(N995S)) variant markedly increased the macroscopic potassium current by increasing both the channel open probability and channel open dwell time. The c.2984 A > G (p.(N995S)) variant did not affect the calcium sensitivity of the channel...
January 12, 2018: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/29330461/comparing-olive-oil-and-c4-dietary-oil-a-prodrug-for-the-gpr119-agonist-2-oleoyl-glycerol-less-energy-intake-of-the-latter-is-needed-to-stimulate-incretin-hormone-secretion-in-overweight-subjects-with-type-2-diabetes
#15
Mette Johannsen Mandøe, Katrine Bagge Hansen, Johanne Agerlin Windeløv, Filip Krag Knop, Jens Frederik Rehfeld, Mette Marie Rosenkilde, Jens Juul Holst, Harald Severin Hansen
BACKGROUND/OBJECTIVE: After digestion, dietary triacylglycerol stimulates incretin release in humans, mainly through generation of 2-monoacylglycerol, an agonist for the intestinal G protein-coupled receptor 119 (GPR119). Enhanced incretin release may have beneficial metabolic effects. However, dietary fat may promote weight gain and should therefore be restricted in obesity. We designed C4-dietary oil (1,3-di-butyryl-2-oleoyl glycerol) as a 2-oleoyl glycerol (2-OG)-generating fat type, which would stimulate incretin release to the same extent while providing less calories than equimolar amounts of common triglycerides, e...
January 12, 2018: Nutrition & Diabetes
https://www.readbyqxmd.com/read/29330299/effects-of-allelic-variations-in-the-human-myxovirus-resistance-protein-a-on-its-antiviral-activity
#16
Laura Graf, Alexej Dick, Franziska Sendker, Emanuel Barth, Manja Marz, Oliver Daumke, Georg Kochs
Only a minority of patients infected with seasonal influenza A viruses exhibits a severe or fatal outcome of infection, but the reasons for this inter-individual variability in influenza susceptibility are unclear. To gain further insights into the molecular mechanisms underlying this variability, we investigated naturally occurring allelic variations of the myxovirus resistance 1 (MX1) gene coding for the influenza restriction factor MxA. The interferon-induced dynamin-like GTPase consists of an N-terminal GTPase domain, a bundle signaling element, and a C-terminal stalk responsible for oligomerization and viral target recognition...
January 12, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29330297/characterization-and-evidence-of-the-mir-888-cluster-as-a-novel-cancer-network-in-prostate
#17
Tsuyoshi Hasegawa, Garrison Glavich, Mary Pahuski, Aleena M Short, Oliver John Semmes, Lifang Yang, Vitold Galkin, Richard R Drake, Aurora Esquela-Kerscher
Prostate cancer afflicts 1 in 7 men and is the second leading cause of male cancer-related deaths in the United States. MicroRNAs (miRNAs), an extensive class of ~22 nucleotide non-coding RNAs, are often aberrantly expressed in tissues and fluids from prostate cancer patients but the mechanism of how specific miRNAs regulate prostate tumorigenesis and metastasis are poorly understood. Here, miR-888 was identified as a novel prostate factor that promotes proliferation and migration. miR-888 resides within a genomic cluster of 7 miRNA genes (mir-892c, mir-890, mir-888, mir-892a, mir-892b, mir-891b, mir-891a) on human chromosome Xq27...
January 12, 2018: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/29330292/microenvironmental-derived-regulation-of-hif-signaling-drives-transcriptional-heterogeneity-in-glioblastoma-multiforme
#18
Dieter Henrik Heiland, Annette Gaebelein, Melanie Boerries, Jakob Woerner, Nils Pompe, Pamela Franco, Sabrina Heynckes, Mark D Bartholomä, Darren Ó hAilín, Maria Stella Carro, Marco Prinz, Stefan Weber, Irina Mader, Daniel Delev, Oliver Schnell
The evolving and highly heterogeneous nature of malignant brain tumors underlies their limited response to therapy and poor prognosis. In addition to genetic alterations, highly dynamic processes such as transcriptional and metabolic reprogramming play an important role in the development of tumor heterogeneity. The present study reports an adaptive mechanism in which the metabolic environment of malignant glioma drives transcriptional reprogramming. Multi-regional analysis of a glioblastoma patient biopsy revealed a metabolic landscape marked by varying stages of hypoxia and creatine enrichment...
January 12, 2018: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/29330196/higher-prevalence-of-lymph-node-metastasis-in-prostate-cancer-in-patients-with-diabetes
#19
Stefan Zoltán Lutz, Tilman Todenhöfer, Robert Wagner, Jörg Hennenlotter, Jana Marlene Ferchl, Marcus Oliver Scharpf, Peter Martus, Harald Staiger, Andreas Fritsche, Arnulf Stenzl, Hans-Ulrich Häring, Martin Heni
Extract: Prostate cancer (PCa) and type 2 diabetes mellitus are under the most frequent diseases in men with a tremendous impact on morbidity and mortality (Giovannucci, et al. 2010). Incidence of many common types of cancer is known to be higher in diabetes (Giovannucci et al. 2010). However, studies reported that incidence of PCa is not increased in men with type 2 diabetes, some studies even found reduced prevalence (Kasper, et al. 2009). In contrast, PCa survival is markedly reduced in patients with coincident type 2 diabetes (Chen, et al...
January 12, 2018: Endocrine-related Cancer
https://www.readbyqxmd.com/read/29330007/lost-connections-oxytocin-and-the-neural-physiological-and-behavioral-consequences-of-disrupted-relationships
#20
REVIEW
Tobias T Pohl, Larry J Young, Oliver J Bosch
In humans and rodent animal models, the brain oxytocin system is paramount for facilitating social bonds, from the formation and consequences of early-life parent-infant bonds to adult pair bond relationships. In social species, oxytocin also mediates the positive effects of healthy social bonds on the partners' well-being. However, new evidence suggests that the negative consequences of early neglect or partner loss may be mediated by disruptions in the oxytocin system as well. With a focus on oxytocin and its receptor, we review studies from humans and animal models, i...
January 9, 2018: International Journal of Psychophysiology
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