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https://www.readbyqxmd.com/read/29334682/body-mass-index-and-plasma-p-selectin-before-coronary-stenting-predict-high-residual-platelet-reactivity-at-6-months-on-dual-antiplatelet-therapy
#1
Elena Z Golukhova, Marina V Grigoryan, Mariya N Ryabinina, Naida I Bulaeva, Victor L Serebruany
BACKGROUND: High residual platelet reactivity (HRPR) during dual antiplatelet therapy (DAPT) may impact clinical outcomes following percutaneous coronary interventions (PCI). However, whether any biomarkers assessed before PCI at DAPT loading may predict delayed maintenance HRPR is not clear. OBJECTIVE: The aim of this study was to determine whether conventional clinical or laboratory indices at loading before stenting may predict HRPR at 6 months of maintenance DAPT...
January 16, 2018: Cardiology
https://www.readbyqxmd.com/read/29334665/i-7ab-inhibited-the-growth-of-tnbc-cells-via-targeting-hdac3-and-promoting-the-acetylation-of-p53
#2
Mei Yang, Xuefei Dang, Yue Tan, Meixing Wang, Xiaojing Li, Gang Li
Triple negative breast cancer (TNBC) is a heterogenous disease with high aggressive and poor outcome. The lack of biomarkers and targeted therapies makes it a challenge for the treatment of TNBC. Histone deacetylase inhibitors (HDACis) are emerging as novel anti-tumor agents in many types of human cancers. In this study, we found that I-7ab, a novel HDACi, inhibited the cell viability of TNBC cells and induced the cell apoptosis. Mechanistically, I-7ab specifically decreased the expression of HDAC3 and promoted the acetylation of p53 at both Lys373 and Lys382 amino acids...
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/29334634/equine-in-vivo-derived-metabolites-of-the-sarm-lgd-4033-and-comparison-with-human-and-fungal-metabolites
#4
Annelie Hansson, Heather Knych, Scott Stanley, Emma Berndtson, Liora Jackson, Ulf Bondesson, Mario Thevis, Mikael Hedeland
LGD-4033 has been found in human doping control samples and has the potential for illicit use in racehorses as well. It belongs to the pharmacological class of selective androgen receptor modulators (SARMs) and can stimulate muscle growth, much like anabolic steroids. However, SARMs have shown superior side effect profiles compared to anabolic steroids, which arguably makes them attractive for use by individuals seeking an unfair advantage over their competitors. The purpose of this study was to investigate the metabolites formed from LGD-4033 in the horse in order to find suitable analytical targets for doping controls...
December 7, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29334584/in-vitro-and-in-vivo-metabolite-identification-of-a-novel-benzimidazole-compound-zln005-by-lc-ms-ms
#5
Wenchao Sun, Khoa Dinh Nguyen, William L Fitch, Samuel D Banister, Hongxiang Tang, Xiaolan Zhang, Lewis Yu, Edgar G Engleman, Jayakumar Rajadas
RATIONALE: A novel benzimidazole compound ZLN005 was previously identified as a transcriptional activator of peroxisome proliferator-activated receptor γ coactivator 1α (PGC-1α) in certain metabolic tissues. Upregulation of PGC-1α by ZLN005 has been shown to have beneficial effect in a diabetic mouse model and in a coronary artery disease model in vitro. ZLN005 could also have therapeutic potential in neurodegenerative diseases involving down-regulation of PGC-1α. Given the phenotypic efficacy of ZLN005 in several animal models of human disease, its metabolic profile was investigated to guide the development of novel therapeutics using ZLN005 as the lead compound...
January 15, 2018: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/29334454/aurophilic-interactions-in-l-au-x-%C3%A2-l-au-x-dimers-calibration-by-experiment-and-theory
#6
Erik Andris, Prokopis Andrikopoulos, Jiří Schulz, Jan Turek, Aleš Růžička, Jana Roithová, Lubomír Rulíšek
Attractive metallophilic (aurophilic, argentophilic, cuprophilic, …) interactions play an important role in arrangement and stabilization of oligonuclear metal ion complexes. We report a combined experimental and theoretical assessment of aurophilic interactions in closed-shell gold(I) dimers. The experimental binding energies were obtained for charged [(LH)AuCl]+…[(L')AuCl] dimers (L is either a phosphine or a N-heterocyclic carbene ligand) in the gas phase. These energies served for benchmarking of correlated quantum chemical calculations (CCSD(T)-calibrated SCS-MP2/CBS method) that were then applied to neutral [(L)AuX]…[(L')AuX] dimers (X = Cl, Br, I)...
January 15, 2018: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29333643/race-sex-and-discrimination-in-school-settings-a-multilevel-analysis-of-associations-with-delinquency
#7
Brittany D Chambers, Jennifer Toller Erausquin
BACKGROUND: Adolescence is a critical phase of development and experimentation with delinquent behaviors. There is a growing body of literature exploring individual and structural impacts of discrimination on health outcomes and delinquent behaviors. However, there is limited research assessing how school diversity and discrimination impact students' delinquent behaviors. In response, the purpose of this study was to assess if individual- and school-level indicators of discrimination and diversity were associated with student delinquent behaviors among African American and White students...
February 2018: Journal of School Health
https://www.readbyqxmd.com/read/29333581/high-final-energy-of-gallium-arsenide-laser-increases-myod-gene-expression-during-the-intermediate-phase-of-muscle-regeneration-after-cryoinjury-in-rats
#8
Caroline Pereira Santos, Andreo Fernando Aguiar, Ines Cristina Giometti, Thaoan Bruno Mariano, Carlos Eduardo Assumpção de Freitas, Gisele Alborghetti Nai, Selma Zambelli de Freitas, Maeli Dal Pai-Silva, Francis Lopes Pacagnelli
The aim of this study was to determine the effects of gallium arsenide (GaAs) laser on IGF-I, MyoD, MAFbx, and TNF-α gene expression during the intermediate phase of muscle regeneration after cryoinjury 21 Wistar rats were divided into three groups (n = 7 per group): untreated with no injury (control group), cryoinjury without GaAs (injured group), and cryoinjury with GaAs (GaAs-injured group). The cryoinjury was induced in the central region of the tibialis anterior muscle (TA). The region injured was irradiated once a day during 14 days using GaAs laser (904 nm; spot size 0...
January 15, 2018: Lasers in Medical Science
https://www.readbyqxmd.com/read/29333575/a-phase-1-dose-escalation-study-of-pf-06664178-an-anti-trop-2-aur0101-antibody-drug-conjugate-in-patients-with-advanced-or-metastatic-solid-tumors
#9
Gentry T King, Keith D Eaton, Brandon R Beagle, Christopher J Zopf, Gilbert Y Wong, Heike I Krupka, Steven Y Hua, Wells A Messersmith, Anthony B El-Khoueiry
Purpose and Methods Trop-2 is a glycoprotein over-expressed in many solid tumors but at low levels in normal human tissue, providing a potential therapeutic target. We conducted a phase 1 dose-finding study of PF-06664178, an antibody-drug conjugate that targets Trop-2 for the selective delivery of the cytotoxic payload Aur0101. The primary objective was to determine the maximum tolerated dose and recommended phase 2 dose. Secondary objectives included further characterization of the safety profile, pharmacokinetics and antitumor activity...
January 15, 2018: Investigational New Drugs
https://www.readbyqxmd.com/read/29333068/nab-paclitaxel-as-second-line-treatment-in-advanced-gastric-cancer-a-multicenter-phase-ii-study-of-the-hellenic-oncology-research-group
#10
Panagiotis Katsaounis, Athanasios Kotsakis, Nikolaos Kentepozidis, Aris Polyzos, Marios Bakogeorgos, Filippos Koinis, Lambros Vamvakas, Nikolaos Vardakis, Kostas Kalbakis, Ioannis Boukovinas, Ioannis I Varthalitis, Efthimios Prinarakis, Vassilis Georgoulias, John Souglakos
Background: This study evaluated the safety and efficacy of nab-paclitaxel as second-line treatment in patients with advanced gastric adenocarcinoma. Methods: Thirty-nine pretreated patients [33 with taxane-based regimens (docetaxel, cisplatin, and fluorouracil)] and 6 with combination of fluoropyrimidines plus cisplatin with locally advanced inoperable and metastatic gastric and gastroesophageal junction adenocarcinoma were treated with weekly nab-paclitaxel (150 mg/m2 d1, d8, d15 in cycles of 28 days)...
January 2018: Annals of Gastroenterology: Quarterly Publication of the Hellenic Society of Gastroenterology
https://www.readbyqxmd.com/read/29332822/constituting-fully-integrated-colorimetric-analysis-system-for-fe-iii-on-multifunctional-nitrogen-doped-moo3-cellulose-paper
#11
Fan Lin, Jiabai Cai, Yuehai Li, Huiwu Yu, Shunxing Li
Using ammonium molybdate and thiourea as precursors, nitrogen-doped MoO3 was produced by a one-step carbonization and then fixed into the cellulose filter paper (NMCP) with acrylic resin as a fixative. NMCP was designed as a multifunctional nanocomposite, i.e., solid phase adsorbent for Fe(III) preconcentration, photocatalyst for iron species transformation and color interference removal, and colorimetric sensor for Fe(III) determination. After photocatalysis, the complex of Fe-humic substances could be transformed into Fe(III) ions, the interference of colored organic matter (e...
April 1, 2018: Talanta
https://www.readbyqxmd.com/read/29332795/polymer-based-materials-modified-with-magnetite-nanoparticles-for-enrichment-of-phospholipids
#12
I Ten-Doménech, H Martínez-Pérez-Cejuela, E F Simó-Alfonso, S Torres-Cartas, S Meseguer-Lloret, J M Herrero-Martínez
A polymeric material modified with magnetic nanoparticles (MNPs) has been synthesized and evaluated as sorbent both for solid-phase extraction (SPE) and dispersive magnetic solid-phase extraction (MSPE) of phospholipids (PLs) in human milk samples. The synthesized sorbent was characterized by scanning electron microscopy and its iron content was also determined. Several experimental variables that affect the extraction performance (e.g. loading solvent, breakthrough volume and loading capacity) were investigated and a comparison between conventional SPE and MSPE modalities was done...
April 1, 2018: Talanta
https://www.readbyqxmd.com/read/29332078/magnetic-resonance-guided-high-intensity-focused-ultrasound-for-treating-movement-disorders
#13
Young Goo Kim, Eun Jung Kweon, Won Seok Chang, Hyun Ho Jung, Jin Woo Chang
Transcranial magnetic resonance-guided focused ultrasound (MRgFUS) surgery has recently gained favor as a novel, noninvasive alternative to conventional neurosurgery. In contrast to traditional ablative interventions, transcranial MRgFUS surgery is entirely imaging-guided and uses continuous temperature measurements at the target and surrounding tissue taken in real-time. Unlike Gamma Knife radiosurgery, MRgFUS surgery can make a lesion immediately and does not use ionizing radiation. Moreover, since no metallic device is implanted, MR imaging-based diagnosis is not restricted throughout life...
2018: Progress in Neurological Surgery
https://www.readbyqxmd.com/read/29331803/caspases-are-key-regulators-of-inflammatory-and-innate-immune-responses-mediated-by-tlr3-in-vivo
#14
Abeer Shaalan, Guy Carpenter, Gordon Proctor
Understanding the key regulators which impact the innate immune response during initial phases of tissue injury, can advance the use of therapeutic approaches which aim at attenuating inflammation and organ damage. Recognition of microbial components by TLRs, initiates the transcription of innate immune signal pathways, that induce the expression of key inflammatory mediators: cytokines, chemokines and adhesion molecules. Beside regulating apoptotic cell death, recent studies have revealed distinct roles for caspases in the optimal production of inflammatory cytokines and host defense against injurious infections...
January 11, 2018: Molecular Immunology
https://www.readbyqxmd.com/read/29331780/application-of-octanohydroxamic-acid-for-liquid-liquid-extraction-of-manganese-oxides-and-fabrication-of-supercapacitor-electrodes
#15
J Milne, I Zhitomirsky
MnO2 and Mn3O4 particles were prepared by wet chemical methods and efficiently dispersed and mixed with multiwalled carbon nanotubes (MWCNT) for the fabrication of composite MnO2-MWCNT and Mn3O4-MWCNT electrodes for electrochemical supercapacitors (ES). The problem of particle agglomeration was addressed by particle extraction through a liquid-liquid interface (PELLI) using octanohydroxamic acid (OHA) as a new extractor. OHA exhibited remarkable adsorption on particles due to a bidentate bonding mechanism. The use of OHA broadened the application of PELLI technology, because it allowed good extraction of particles from an aqueous phase at high pH...
January 6, 2018: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29331754/synthesis-and-bioevaluation-and-doking-study-of-1h-pyrrolo-2-3-b-pyridine-derivatives-bearing-aromatic-hydrazone-moiety-as-c-met-inhibitors
#16
Wenhui Wang, Shan Xu, Yongli Duan, Xiaobo Liu, Xiaojing Li, Caolin Wang, Bingbing Zhao, Pengwu Zheng, Wufu Zhu
Two series of aromatic hydrazone derivatives bearing 1H-pyrrolo[2,3-b]pyridine moiety (7a-r, 8a-i, 12a-b, 13a-c, 16a-d and 17a-e) were designed, synthesized and evaluated for the IC50 values against four cancer cell lines (A549, HepG2, MCF-7and PC-3). Two selected compounds (7c and 17e) were further evaluated for the activity against c-Met, Flt-3, VEGFR-2 and EGFR kinases. The data indicated that targets compounds were selective for c-Met kinase. And the most promising compound 7c was further studied in terms of dose-dependent, time-dependent and cell apoptosis...
December 27, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29331663/a-multi-center-randomized-trial-to-evaluate-hematologic-toxicities-after-hyperthermic-intraperitoneal-chemotherapy-with-oxaliplatin-or-mitomycin-in-patients-with-appendiceal-tumors
#17
Edward A Levine, Konstantinos I Votanopoulos, Perry Shen, Greg Russell, Joyce Fenstermaker, Paul Mansfield, David Bartlett, John H Stewart
BACKGROUND: Appendiceal cancer is a rare disease, which has proven difficult to study in prospective trials. Cytoreductive surgery with HIPEC is an established therapy for peritoneal dissemination from appendiceal cancer. The optimal chemotherapeutic agent to use in the HIPEC is not clear. Mitomycin has long been the utilized, however our previous phase I experience, and European retrospective studies suggest oxaliplatin as an alternative. Therefore, we initiated a multicenter randomized trial to compare mitomycin to oxaliplatin HIPEC for appendiceal cancer...
January 10, 2018: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/29331584/protein-neddylation-and-its-alterations-in-human-cancers-for-targeted-therapy
#18
REVIEW
Lisha Zhou, Wenjuan Zhang, Yi Sun, Lijun Jia
Neddylation, a post-translational modification that conjugates an ubiquitin-like protein NEDD8 to substrate proteins, is an important biochemical process that regulates protein function. The best-characterized substrates of neddylation are the cullin subunits of Cullin-RING ligases (CRLs), which, as the largest family of E3 ubiquitin ligases, control many important biological processes, including tumorigenesis, through promoting ubiquitylation and subsequent degradation of a variety of key regulatory proteins...
January 10, 2018: Cellular Signalling
https://www.readbyqxmd.com/read/29331472/influence-of-partially-demineralized-milk-proteins-on-rheological-properties-and-microstructure-of-acid-gels
#19
G H Meletharayil, H A Patel, L E Metzger, C Marella, T Huppertz
Innovative clean label processes employed in the manufacture of acid gels are targeted to modify the structure of proteins that contribute to rheological properties. In the present study, CO2-treated milk protein concentrate powder with 80% protein in dry matter (TMPC80) was mixed with nonfat dry milk (NDM) in different ratios for the manufacture of acid gels. Dispersions of NDM and TMPC80 that provided 100, 90, 70, and 40% of protein from NDM were reconstituted to 4.0% (wt/wt) protein and 12.0% (wt/wt) total solids...
January 10, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29331466/high-grain-diets-supplemented-with-phytogenic-compounds-or-autolyzed-yeast-modulate-ruminal-bacterial-community-and-fermentation-in-dry-cows
#20
V Neubauer, R Petri, E Humer, I Kröger, E Mann, N Reisinger, M Wagner, Q Zebeli
The feeding of concentrate-rich diets may lead to microbial imbalances and dysfermentation in the rumen. The main objective of this study was to determine the effects of supplementing phytogenic compounds (PHY) or autolyzed yeast (AY) on rumen fermentation and microbial abundance in cows intermittently fed concentrate-rich diets. The experiment was carried out as an incomplete 3 × 4 Latin square design, with 8 nonlactating rumen-fistulated Holstein-Friesian cows. The cows were randomly assigned to a concentrate diet that was either not supplemented (CON), or supplemented with PHY or AY...
January 10, 2018: Journal of Dairy Science
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