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https://www.readbyqxmd.com/read/29334668/lidanpaidu-prescription-alleviates-lipopolysaccharide-induced-acute-kidney-injury-by-suppressing-the-nf-%C3%AE%C2%BAb-signaling-pathway
#1
Fan Zhang, Shan Lu, Siyi Jin, Keli Chen, Juan Li, Bisheng Huang, Yan Cao
The Lidanpaidu Prescription (LDP), a hospital preparation, composed of Chinese classical preparations, has been reported to have antiendotoxin, anticoagulant and other effects. However, its therapeutic effect on lipopolysaccharide (LPS)-induced acute kidney injury (AKI) and the mechanisms remain unclear. Therefore, we administered LPD pretreatment at different doses to examine the protective effects and mechanisms in LPS-induced AKI in mice. The kidney injury induced by LPS was assessed by histological examination...
January 12, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
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
#2
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/29334655/how-yeast-coordinates-metabolism-growth-and-division
#3
REVIEW
Jennifer C Ewald
All cells, especially single cell organisms, need to adapt their metabolism, growth and division coordinately to the available nutrients. This coordination is mediated by extensive cross-talk between nutrient signaling, metabolism, growth, and the cell division cycle, which is only gradually being uncovered: Nutrient signaling not only controls entry into the cell cycle at the G1/S transition, but all phases of the cell cycle. Metabolites are even sensed directly by cell cycle regulators to prevent cell cycle progression in absence of sufficient metabolic fluxes...
January 12, 2018: Current Opinion in Microbiology
https://www.readbyqxmd.com/read/29334610/phase-ii-study-of-dovitinib-in-patients-with-castration-resistant-prostate-cancer-kcsg-gu11-05
#4
Yoon Ji Choi, Hye Sook Kim, Se Hoon Park, Bong-Seog Kim, Kyoung Ha Kim, Hyo Jin Lee, Hong Suk Song, Dong-Yeop Shin, Ha Young Lee, Hoon-Gu Kim, Kyung Hee Lee, Jae Lyun Lee, Kyong Hwa Park
Purpose: Fibroblast growth factor (FGF) signals are important in carcinogenesis and progression of prostate cancer. Dovitinib is an oral, pan-class inhibitor of vascular endothelial growth factor receptor (VEGFR), platelet-derived growth factor receptor, and fibroblast growth factor receptor (FGFR). We evaluated the efficacy and toxicity of dovitinib in men with metastatic castration resistant prostate cancer (mCRPC). Materials and Methods: This study was a single-arm, phase II, open-label, multicenter trial of dovitinib 500mg/day (5-days-on/2-days-off schedule)...
January 2, 2018: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/29334581/gender-and-muscle-specific-responses-during-fatiguing-exercise
#5
Ethan C Hill, Terry J Housh, Cory M Smith, Richard J Schmidt, Glen O Johnson
The purpose of the present investigation was to examine potential gender-related differences in electromyographic (EMG) and mechanomyographic (MMG) responses during submaximal, concentric, isokinetic, forearm flexion muscle contractions. Twelve men and twelve women performed concentric peak torque trials prior to (pretest) and following (posttest) a fatiguing exercise bout that consisted of 50 submaximal (65% of concentric peak torque), concentric, isokinetic (60°·s), forearm flexion muscle contractions. Surface EMG and MMG signals were simultaneously recorded from the biceps brachii and brachioradialis muscles...
January 12, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29334566/deficiency-of-transforming-growth-factor-%C3%AE-signaling-disrupts-memory-processes-in-rats
#6
Vladimir I Arkhipov, Ekaterina V Pershina, Sergey G Levin
Cytokines, in addition to their participation in immune and inflammatory processes, play an important role in synaptic plasticity, neoneurogenesis, and cognitive functions. In our work, we aimed to clarify the role of the transforming growth factor-β (TGF-β), which is recognized as a multifunctional cytokine, in memory processes. Behavioral experiments were carried out in rats using step-through passive avoidance test. The results obtained showed that the learning of animals after treatment with SB431542, a selective inhibitor of TGF-β receptors, was impaired, which indicated a significant memory deterioration...
January 12, 2018: Neuroreport
https://www.readbyqxmd.com/read/29334470/heterologous-expression-of-rhizobial-celc2-cellulase-impairs-symbiotic-signaling-and-nodulation-in-medicago-truncatula
#7
Marta Robledo, Esther Menéndez, Jose Ignacio Jimenez-Zurdo, Raúl Rivas, Encarna Velazquez, Eustoquio Martinez-Molina, Giles Oldroyd, Pedro F Mateos
The infection of legume plants by rhizobia is tightly regulated to ensure accurate bacterial penetration, infection and development of functionally efficient nitrogen-fixing root nodules. Rhizobial Nod Factors (NF) have key roles in the elicitation of nodulation signalling. Infection of white clover roots also involves the tightly regulated specific breakdown of the non-crystalline apex of cell walls in growing root hairs, which is mediated by Rhizobium leguminosarum bv. trifolii cellulase CelC2. Here, we have analyzed the impact of this endoglucanase on symbiotic signalling in the model legume Medicago truncatula...
January 15, 2018: Molecular Plant-microbe Interactions: MPMI
https://www.readbyqxmd.com/read/29334458/direct-electrochemical-vibrio-dna-sensing-adopting-highly-stable-graphene-flavin-mononucleotide-aqueous-dispersion-modified-interface
#8
Tao Yang, Huaiyin Chen, Zhiwei Qiu, Renzhong Yu, Shizhong Luo, Weihua Li, Kui Jiao
A bio-functionalized graphene nanohybrid was prepared by simultaneously sonicating graphene and riboflavin 5'-monophosphate sodium salt (FMNS). FMNS, as a bio-dispersant, shows an efficient stabilization for obtaining highly dispersed graphene nanosheets in an aqueous solution. Due to the superior dispersion of graphene and the excellent electrochemical redox activity of FMNS, a direct electrochemical DNA sensor was fabricated adopting the inherent electrochemical redox activity of Gr-FMNS. The comparison between using traditional electrochemical indicator ([Fe(CN)6]3-/4-) and using the self-signal of Gr-FMNS was fully conducted to study the DNA sensing performance...
January 15, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29334418/antimicrobial-and-stress-responses-to-increased-temperature-and-bacterial-pathogen-challenge-in-the-holobiont-of-a-reef-building-coral
#9
Jeroen A J M van de Water, Maryam Chaib De Mares, Groves B Dixon, Jean-Baptiste Raina, Bette L Willis, David G Bourne, Madeleine J H van Oppen
Global increases in coral disease prevalence have been linked to ocean warming through changes in coral-associated bacterial communities, pathogen virulence and immune system function. However, the interactive effects of temperature and pathogens on the coral holobiont are poorly understood. Here, we assessed three compartments of the holobiont (host, Symbiodinium, bacterial community) of the coral Montipora aequituberculata challenged with the pathogen Vibrio coralliilyticus and the commensal bacterium Oceanospirillales sp...
January 15, 2018: Molecular Ecology
https://www.readbyqxmd.com/read/29334415/early-burst-in-body-size-evolution-is-uncoupled-from-species-diversification-in-diving-beetles-dytiscidae
#10
Aurélie Désamoré, Benjamin Laenen, Kelly B Miller, Johannes Bergsten
Changes in morphology are often thought to be linked to changes in species diversification, which is expected to leave a signal of Early Burst (EB) in phenotypic traits. However, such signal is rarely recovered in empirical phylogenies, even for groups with well-known adaptive radiation. Using a comprehensive phylogenetic approach in Dytiscidae, which harbors ~4,300 species with as much as 50-fold variation in body size among them, we ask whether pattern of species diversification correlates with morphological evolution...
January 15, 2018: Molecular Ecology
https://www.readbyqxmd.com/read/29334409/climate-driven-mitochondrial-selection-a-test-in-australian-songbirds
#11
Annika Mae Lamb, Han Ming Gan, Chris Greening, Leo Joseph, Yin Peng Lee, Alejandra Morán-Ordóñez, Paul Sunnucks, Alexandra Pavlova
Diversifying selection between populations that inhabit different environments can promote lineage divergence within species and ultimately drive speciation. The mitochondrial genome (mitogenome) encodes essential proteins of the oxidative phosphorylation (OXPHOS) system and can be a strong target for climate-driven selection (i.e. associated with inhabiting different climates). We investigated whether Pleistocene climate changes drove mitochondrial selection and evolution within Australian birds. First, using phylogeographic analyses of the mitochondrial ND2 gene for 17 songbird species, we identified mitochondrial clades (mitolineages)...
January 15, 2018: Molecular Ecology
https://www.readbyqxmd.com/read/29334390/smartphone-integrated-optoelectrowetting-sioew-for-on-chip-sample-processing-and-microscopic-detection-of-water-quality
#12
Dongyue Jiang, Seunguk Lee, Sung Woo Bae, Sung-Yong Park
With the increasing capabilities and ubiquity of smartphones and their associated digital cameras, this study presents a smartphone integrated optoelectrowetting (SiOEW) device as a simple, portable tool capable of on-chip water sample preparation and microscopic detection of the target cells in water samples, which significantly reduce the detection time and the labor cost required for water quality monitoring. A commercially available smartphone is used as a low-intensity portable light source to perform optoelectrowetting (OEW)-based microfluidic operations such as droplet transportation, merging, mixing, and immobilization on a hydrophobic detection zone...
January 15, 2018: Lab on a Chip
https://www.readbyqxmd.com/read/29334389/effect-of-coordination-geometry-on-the-magnetic-properties-of-a-series-of-ln2-and-ln4-hydroxo-clusters
#13
Amaleswari Rasamsetty, Chinmoy Das, E Carolina Sañudo, Maheswaran Shanmugam, Viswanathan Baskar
A series of three isostructural tetranuclear complexes with the general molecular formula [Ln4(μ3-OH)4(L)4(μ2-piv)4(MeOH)4] (Ln = Gd 1, Dy 2 and Ho 3; LH = [1,3-bis(o-methoxyphenyl)-propane-1,3-dione]) were isolated and unambiguously characterized by single crystal XRD. Under similar reaction conditions, simply changing the co-ligand from pivalate to 2,6-bis(hydroxymethyl)-p-cresol (LH'3) led to the isolation of dinuclear Ln(iii) complexes with the general molecular formula [Ln2(L)4(μ2-LH'2)2]·4DMF (Ln = Gd 4, Dy 5 and Ho 6)...
January 15, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29334381/the-molecular-basis-of-subtype-selectivity-of-human-kinin-g-protein-coupled-receptors
#14
Lisa Joedicke, Jiafei Mao, Georg Kuenze, Christoph Reinhart, Tejaswi Kalavacherla, Hendrik R A Jonker, Christian Richter, Harald Schwalbe, Jens Meiler, Julia Preu, Hartmut Michel, Clemens Glaubitz
G-protein-coupled receptors (GPCRs) are the most important signal transducers in higher eukaryotes. Despite considerable progress, the molecular basis of subtype-specific ligand selectivity, especially for peptide receptors, remains unknown. Here, by integrating DNP-enhanced solid-state NMR spectroscopy with advanced molecular modeling and docking, the mechanism of the subtype selectivity of human bradykinin receptors for their peptide agonists has been resolved. The conserved middle segments of the bound peptides show distinct conformations that result in different presentations of their N and C termini toward their receptors...
January 15, 2018: Nature Chemical Biology
https://www.readbyqxmd.com/read/29334375/a-small-molecule-inhibitor-of-the-ubiquitin-activating-enzyme-for-cancer-treatment
#15
Marc L Hyer, Michael A Milhollen, Jeff Ciavarri, Paul Fleming, Tary Traore, Darshan Sappal, Jessica Huck, Judy Shi, James Gavin, Jim Brownell, Yu Yang, Bradley Stringer, Robert Griffin, Frank Bruzzese, Teresa Soucy, Jennifer Duffy, Claudia Rabino, Jessica Riceberg, Kara Hoar, Anya Lublinsky, Saurabh Menon, Michael Sintchak, Nancy Bump, Sai M Pulukuri, Steve Langston, Stephen Tirrell, Mike Kuranda, Petter Veiby, John Newcomb, Ping Li, Jing Tao Wu, Josh Powe, Lawrence R Dick, Paul Greenspan, Katherine Galvin, Mark Manfredi, Chris Claiborne, Benjamin S Amidon, Neil F Bence
The ubiquitin-proteasome system (UPS) comprises a network of enzymes that is responsible for maintaining cellular protein homeostasis. The therapeutic potential of this pathway has been validated by the clinical successes of a number of UPS modulators, including proteasome inhibitors and immunomodulatory imide drugs (IMiDs). Here we identified TAK-243 (formerly known as MLN7243) as a potent, mechanism-based small-molecule inhibitor of the ubiquitin activating enzyme (UAE), the primary mammalian E1 enzyme that regulates the ubiquitin conjugation cascade...
January 15, 2018: Nature Medicine
https://www.readbyqxmd.com/read/29334372/pharmacological-blockade-of-asct2-dependent-glutamine-transport-leads-to-antitumor-efficacy-in-preclinical-models
#16
Michael L Schulte, Allie Fu, Ping Zhao, Jun Li, Ling Geng, Shannon T Smith, Jumpei Kondo, Robert J Coffey, Marc O Johnson, Jeffrey C Rathmell, Joe T Sharick, Melissa C Skala, Jarrod A Smith, Jordan Berlin, M Kay Washington, Michael L Nickels, H Charles Manning
The unique metabolic demands of cancer cells underscore potentially fruitful opportunities for drug discovery in the era of precision medicine. However, therapeutic targeting of cancer metabolism has led to surprisingly few new drugs to date. The neutral amino acid glutamine serves as a key intermediate in numerous metabolic processes leveraged by cancer cells, including biosynthesis, cell signaling, and oxidative protection. Herein we report the preclinical development of V-9302, a competitive small molecule antagonist of transmembrane glutamine flux that selectively and potently targets the amino acid transporter ASCT2...
January 15, 2018: Nature Medicine
https://www.readbyqxmd.com/read/29334302/mirnas-as-potential-regulators-of-mtor-pathway-in-renal-cell-carcinoma
#17
Inês Nogueira, Francisca Dias, Ana Luísa Teixeira, Rui Medeiros
Renal cell carcinoma (RCC) is the most commonly occurring solid cancer of the adult kidney with the majority of RCC cases being detected accidentally. The most aggressive subtype is clear cell RCC (ccRCC). miRNAs, a family of small noncoding RNAs regulating gene expression have been identified as key biological modulators. The von Hippel-Lindau pathway is one of the signaling pathways involved in the pathophysiology of ccRCC. Another oncogenic mechanism involves the activation of PI3K/AKT/mTOR signaling and serves as a central regulator of cell metabolism, proliferation and survival...
January 15, 2018: Pharmacogenomics
https://www.readbyqxmd.com/read/29334279/uric-acid-and-the-vaccine-adjuvant-activity-of-aluminum-oxy-hydroxide-nanoparticles
#18
Sachin G Thakkar, Haiyue Xu, Xu Li, Zhengrong Cui
In an effort to improve the adjuvanticity of insoluble aluminum salts, we discovered that the adjuvant activity of aluminum salt nanoparticles is significantly stronger than aluminum salt microparticles, likely related to nanoparticle's stronger ability to directly activate NLRP3 inflammasome as the nanoparticles are more efficiently taken up by phagocytic cells. Endogenous signals such as uric acid from cell damage or death caused by the cytotoxicity of aluminum salts are thought to indirectly activate inflammasome, prompting us to hypothesize that the potent adjuvant activity of aluminum salt nanoparticles is also related to their ability to stimulate uric acid production...
January 15, 2018: Journal of Drug Targeting
https://www.readbyqxmd.com/read/29334276/an-automatic-measure-of-progression-during-colonoscopy-correlates-to-patient-experienced-pain
#19
Louise Preisler, Mustafa Bulut, Morten Soendergaard Svendsen, Lars Bo Svendsen, Lars Konge
BACKGROUND: Colonoscopy screening and surveillance programs depend on patient's tolerable experience, which is associated with competence of the endoscopist. The Colonoscopy Progression Score (CoPS) is an automated tool based on recording of the Magnetic Scope Imager (MEI) picture in order to track progression. CoPS deliver a numeric score and a graphic map. A high score expresses a rapid and smooth progression. Aims of study were to explore the correlation between CoPS and patient experienced pain and to identity locations associated with pain...
January 15, 2018: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/29334260/crude-extract-of-origanum-vulgare-l-induced-cell-death-and-suppressed-mapk-and-pi3-akt-signaling-pathways-in-sw13-and-h295r-cell-lines
#20
Beatrice Rubin, Jacopo Mansi, Halenya Monticelli, Loris Bertazza, Marco Redaelli, Francesca Sensi, Maira Zorzan, Carla Scaroni, Caterina Mian, Maurizio Iacobone, Decio Armanini, Cristina Bertolini, Susi Barollo, Marco Boscaro, Raffaele Pezzani
Oregano (Origanum vulgare L.) is a common aromatic plant used in Mediterranean and Asian Regions for treating respiratory diseases, painful menstruation, rheumatoid arthritis, etc. Recently its role as an anticancer plant has been suggested, although oregano has been never evaluated into adrenocortical tumour cell models. This study analysed for the first time the anticancer effects of a crude extract of wild mountain oregano (Origanum vulgare L.) in SW13 and H295R cell lines. The crude extract was characterised by GC/MS and the toxic effects of oregano were first analysed by brine shrimp lethality assay...
January 15, 2018: Natural Product Research
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