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https://www.readbyqxmd.com/read/29793172/on-the-autonomous-motion-of-active-drops-or-bubbles
#1
Yuri S Ryazantsev, Manuel G Velarde, Eduardo Guzman, Ramón G Rubio, Francisco Ortega, Juan-Jose Montoya
Thermo-capillary stresses on the surface of a drop can be the result of a non-isothermal surface chemical conversion of a reactant dissolved in the host fluid. The strength of heat production (with e.g. absorption) on the surface is ruled by the diffusion of the reactant and depends on the state of motion of the drop. Such thermo-capillary stresses can provoke the motion of the drop or its motionless state in the presence of an external body force. If in the balance of forces, including indeed viscous drag, the net resultant force vanishes there is the possibility of autonomous motion with constant velocity of the drop...
May 19, 2018: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29793154/juvenile-treatment-with-mglur2-3-agonist-prevents-schizophrenia-like-phenotypes-in-adult-by-acting-through-gsk3%C3%AE
#2
Bo Xing, Genie Han, Min-Juan Wang, Melissa A Snyder, Wen-Jun Gao
Prodromal memory deficits represent an important marker for the development of schizophrenia (SZ), in which glutamatergic hypofunction occurs in the prefrontal cortex (PFC). The mGluR2/3 agonist LY379268 (LY37) attenuates excitatory N-methyl-D-aspartate receptor (NMDAR)-induced neurotoxicity, a central pathological characteristic of glutamatergic hypofunction. We therefore hypothesized that early treatment with LY37 would rescue cognitive deficits and confer benefits for SZ-like behaviors in adults. To test this, we assessed whether early intervention with LY37 would improve learning outcomes in the Morris Water Maze for rats prenatally exposed to methylazoxymethanol acetate (MAM), a neurodevelopmental SZ model...
May 14, 2018: Neuropharmacology
https://www.readbyqxmd.com/read/29793136/effects-of-gestational-hypertension-and-pre-eclampsia-in-mrna-expression-of-fibrinolysis-genes-in-primary-cultured-human-umbilical-vein-endothelial-cells
#3
Irais Poblete-Naredo, Yury Rodríguez-Yáñez, Rogelio O Corona-Núñez, Stuart González-Monroy, Juan E Salinas, Arnulfo Albores
Hypertension disorders (HD) and pre-eclampsia (PRE) are leading causes of maternal deaths worldwide. PRE is associated with vascular endothelial dysfunction and with deregulation of the fibrinolysis pathway genes. Fibrinolysis is the fibrin clot hydrolysis process catalyzed by plasmin, a proteolytic enzyme formed from plasminogen. Plasminogen is cleaved by tissue-type (tPA) and urokinase-type (uPA) activators and inhibited by the plasminogen activator inhibitors type-1 (PAI-1) and type-2 (PAI-2). The whole process maintains blood hemostasis...
May 17, 2018: Thrombosis Research
https://www.readbyqxmd.com/read/29793114/soil-types-influence-the-fate-of-antibiotic-resistant-bacteria-and-antibiotic-resistance-genes-following-the-land-application-of-sludge-composts
#4
Junya Zhang, Qianwen Sui, Juan Tong, Hui Zhong, Yawei Wang, Meixue Chen, Yuansong Wei
Sewage sludge was generally considered a significant reservoir of antibiotic resistance genes (ARGs) and could enter agricultural systems as fertilizer after composting. Soil types and the discrepancy of sludge composts could have influenced the fate of antibiotic-resistant bacteria (ARB) following the land application of sludge composts, which deserved to be clarified. Thus, the fate of ARB and ARGs following the land application of three types of sludge composts (A, B, and C) to three different soils (red soil, loess, and black soil) was investigated...
May 21, 2018: Environment International
https://www.readbyqxmd.com/read/29793098/evaluation-of-analgesic-and-anti-inflammatory-activities-of-rubia-cordifolia-l-by-spectrum-effect-relationships
#5
REVIEW
Cai-Hong Shen, Cui-Ting Liu, Xiao-Juan Song, Wei-Ya Zeng, Xiao-Ying Lu, Zuo-Liang Zheng, Jie-Pan, Ruo-Ting Zhan, Ping-Yan
The objective of the current work was to evaluate the spectrum-effect relationships between high-performance liquid chromatography fingerprints and analgesic and anti-inflammatory effects of Rubia cordifolia L. extract (RCE), and to identify active components of RCE. Chemical fingerprints of ten batches of RC from various sources were obtained by HPLC, and similarity and hierarchical clustering analyses were carried out. Pharmacodynamic assays were performed in adjuvant-induced arthritis rat model to assess the analgesic and anti-inflammatory properties of RCE...
May 17, 2018: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29793095/sex-hormones-affect-acute-and-chronic-stress-responses-in-sexually-dimorphic-patterns-consequences-for-depression-models
#6
Lei Guo, Yi-Xi Chen, Yu-Ting Hu, Xue-Yan Wu, Yang He, Juan-Li Wu, Man-Li Huang, Matthew Mason, Ai-Min Bao
BACKGROUND: Alterations in peripheral sex hormones may play an important role in sex differences in terms of stress responses and mood disorders. It is not yet known whether and how stress-related brain systems and brain sex steroid levels fluctuate in relation to changes in peripheral sex hormone levels, or whether the different sexes show different patterns. We aimed to investigate systematically, in male and female rats, the effect of decreased circulating sex hormone levels following gonadectomy on acute and chronic stress responses, manifested as changes in plasma and hypothalamic sex steroids and hypothalamic stress-related molecules...
May 21, 2018: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29793091/effects-of-surface-modification-of-as-2-o-3-loaded-plga-nanoparticles-on-its-anti-liver-cancer-ability-an-in-vitro-and-in-vivo-study
#7
Xiaoli Song, Juan You, Hongxia Shao, Caifeng Yan
As2 O3 -loaded nanoparticles (NPs) based on poly (lactic-co-glycolic acid) (PLGA) were prepared by double emulsion-solvent evaporation method. Then Lactose acid (LA) and/or PEG were modified onto the NPs by chemical covalent coupling through -NH2 and -COOH. The FTIR results showed that LA and PEG could be successfully modified onto the surface of the NPs. All the As2 O3 -loaded PLGA NPs (As2 O3 @PLGA NPs) presented suitable physical stability, favorable size, and spherical shape. The in vitro release rate of As2 O3 from the NPs depended on the surface of the NPs...
May 21, 2018: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/29793089/gold-and-gold-silver-alloy-nanoparticles-enhance-the-myogenic-differentiation-of-myoblasts-through-p38-mapk-signaling-pathway-and-promote-in-vivo-skeletal-muscle-regeneration
#8
Juan Ge, Kai Liu, Wen Niu, Mi Chen, Min Wang, Yumeng Xue, Chuanbo Gao, Peter X Ma, Bo Lei
Under the severe trauma condition, the skeletal muscles regeneration process is inhibited by forming fibrous scar tissues. Understanding the interaction between bioactive nanomaterials and myoblasts perhaps has important effect on the enhanced skeletal muscle tissue regeneration. Herein, we investigate the effect of monodispersed gold and gold-silver nanoparticles (AuNPs and Au-AgNPs) on the proliferation, myogenic differentiation and associated molecular mechanism of myoblasts (C2C12), as well as the in vivo skeletal muscle tissue regeneration...
May 18, 2018: Biomaterials
https://www.readbyqxmd.com/read/29792989/novel-genotypes-and-multilocus-genotypes-of-enterocytozoon-bieneusi-in-pigs-in-northwestern-china-a-public-health-concern
#9
Sha-Sha Wang, Jun-Qiang Li, Yun-Hui Li, Xiang-Wei Wang, Xian-Chen Fan, Xin Liu, Zi-Juan Li, Jun-Ke Song, Long-Xian Zhang, Guang-Hui Zhao
Enterocytozoon bieneusi, the most important and common microsporidian species, inhabits in most animals and humans causing diarrhea and systemic diseases. The objectives of the present study were to examine the prevalence and genetic variability of E. bieneusi in pigs in Shaanxi province, northwestern China. A total of 560 pig faecal samples were collected from five different farms in Shaanxi province and molecularly characterized using multilocus genotyping (MLST) technology. High E. bieneusi infection rate (78...
May 21, 2018: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/29792963/extraction-characterization-and-biological-activity-of-sulfated-polysaccharides-from-seaweed-dictyopteris-divaricata
#10
Yinxin Cui, Xin Liu, Shufang Li, Limin Hao, Juan Du, DaHai Gao, Qiaozhen Kang, Jike Lu
Dictyopteris divaricata is a kind of important brown algae with many biological activities. It has been receiving more and more attention, yet there are rarely studies done on its polysaccharides. In this study, the optimum extraction and biological activity of seaweed polysaccharides from Dictyopteris divaricata (DDSP) were investigated. Response surface methodology (RSM), based on a three-level, three-variable Box-Behnken design (BBD), was employed to obtain the best possible combinations for maximum polysaccharides yield...
May 21, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29792521/problematic-video-gaming-in-a-young-spanish-population-association-with-psychosocial-health
#11
Carlos Buiza-Aguado, Araceli Alonso-Canovas, Celia Conde-Mateos, Juan Jose Buiza-Navarrete, Douglas Gentile
Problematic video gaming (PVG) is a concern for psychologists attending children and adolescents. Uniform diagnostic criteria are lacking, and risk factors are poorly understood. Internet gaming disorder (IGD) was included in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5), and scales derived from its diagnostic criteria may be helpful to assess PVG. A multicenter study was conducted in secondary schools using an IGD-derived scale (dichotomous Nine-Item Internet Gaming Disorder Scale [IGD-9]), analyzing PVG-related variables...
May 24, 2018: Cyberpsychology, Behavior and Social Networking
https://www.readbyqxmd.com/read/29792317/in-situ-reduction-from-uranyl-ion-into-a-tetravalent-uranium-trimer-and-hexamer-featuring-ion-exchange-properties-and-the-alexandrite-effect
#12
Jian Lin, Zenghui Yue, Mark A Silver, Meiying Qie, Xiaomei Wang, Wei Liu, Xiao Lin, Hong-Liang Bao, Lin-Juan Zhang, Shuao Wang, Jian-Qiang Wang
By utilizing zinc amalgam as an in situ reductant and pH regulator, mild hydrothermal reaction between UO2 (CH3 COO)2 ·2H2 O, H2 SO4 , and Cs2 CO3 or between UO2 (CH3 COO)2 ·2H2 O, C2 H4 (SO3 H)2 , and K2 CO3 yielded a novel cesium UIV sulfate trimer Cs4 [U3 O(SO4 )7 ]·2.2H2 O (1) and a new potassium UIV disulfonic hexamer K[U6 O4 (OH)5 (H2 O)5 ][C2 H4 (SO3 )2 ]6 ·6H2 O (2), respectively. Compound 1 features a lamellar structure with a honeycomb lattice, and it represents an unprecedented trimeric UIV cluster composed of purely inorganic moieties...
May 24, 2018: Inorganic Chemistry
https://www.readbyqxmd.com/read/29792017/correlations-of-serum-cystatin-c-and-hs-crp-with-vascular-endothelial-cell-injury-in-patients-with-active-systemic-lupus-erythematosus
#13
Dong Gao, Juan Shao, Waishu Jin, Xiujuan Xia, Yan Qu
BACKGROUND: To investigate the correlations of serum cystatin C and high-sensitivity C-reactive protein (hs-CRP) with vascular endothelial cell injury in patients with active systemic lupus erythematosus (SLE). METHODS: A total of 80 patients with SLE treated in our hospital from January 2016 to September 2017 were selected and randomly divided into stable-stage group (n=40) and active-stage group (n=40) using a random number table. The expressions of cystatin C and hs-CRPin stable and active stages were compared, and the inner diameters of brachial artery and levels of vascular endothelial growth factors in stable and active stages were also compared...
May 22, 2018: Panminerva Medica
https://www.readbyqxmd.com/read/29791865/executive-and-arousal-vigilance-decrement-in-the-context-of-the-attentional-networks-the-anti-vea-task
#14
Fernando Gabriel Luna, Julián Marino, Javier Roca, Juan Lupiáñez
BACKGROUND: Vigilance is generally understood as the ability to detect infrequent critical events through long time periods. In tasks like the Sustained Attention to Response Task (SART), participants tend to detect fewer events across time, a phenomenon known as "vigilance decrement". However, vigilance might also involve sustaining a tonic arousal level. In the Psychomotor Vigilance Test (PVT), the vigilance decrement corresponds to an increment across time in both mean and variability of reaction time...
May 20, 2018: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/29791771/minimal-information-about-an-immuno-peptidomics-experiment-miaipe
#15
Jennie R Lill, Peter A van Veelen, Stefan Tenzer, Arie Admon, Etienne Caron, Josh Elias, Albert J R Heck, Miguel Marcilla, Fabio Marino, Markus Müller, Bjoern Peters, Anthony Purcell, Alessandro Sette, Theo Sturm, Nicola Ternette, Juan Antonio Vizcaíno, Michal Bassani-Sternberg
Minimal Information about an Immuno-Peptidomics Experiment (MIAIPE) is an initiative of the members of the Human Immuno-Peptidome Project (HIPP), an international program organized by the Human Proteome Organization (HUPO). The aim of the MIAIPE guidelines is to deliver technical guidelines representing the minimal information required to sufficiently support the evaluation and interpretation of immunopeptidomics experiments. The MIAIPE document has been designed to report essential information about sample preparation, mass spectrometric measurement and associated mass spectrometry (MS)-related bioinformatics aspects that are unique to immunopeptidomics and may not be covered by the general proteomics MIAPE (Minimal Information About a Proteomics Experiment) guidelines...
May 23, 2018: Proteomics
https://www.readbyqxmd.com/read/29791429/-clinical-practice-guideline-for-the-evaluation-and-management-of-upper-gastrointestinal-bleeding-for-the-peruvian-social-security-essalud
#16
Jorge Vásquez-Quiroga, Alvaro Taype-Rondan, Jessica Hanae Zafra-Tanaka, Ericson Arcana-López, Luis Cervera-Caballero, Javier Contreras-Turin, Katherine Guzmán-Cáceres, Juan Llatas-Perez, Luis Marin-Calderón, Alejandro Piscoya, Daniel Vargas-Blácido, Nelly Vásquez-Valverde, Raúl Timaná-Ruiz
OBJECTIVE: To provide evidence-based clinical recommendations for the evaluation and management of patients with upper gastrointestinal bleeding (UGB) in the Peruvian Social Security (EsSalud). MATERIALS AND METHODS: A local guideline development group (local GDG) was established, including specialists in gastroenterology and methodologists. The local GDG formulated 11 clinical questions to be answered by this clinical practice guide (CPG). We searched and selected CPG of UGB published from 2012, which answered the posed questions and obtained a score higher than 60% in domains 1 and 3 of the Appraisal of Guidelines for Research and Evaluation II (AGREE-II) tool...
January 2018: Revista de Gastroenterología del Perú: órgano Oficial de la Sociedad de Gastroenterología del Perú
https://www.readbyqxmd.com/read/29791425/-endoscopic-submucosal-dissection-of-a-transpyloric-early-gastric-c%C3%A3-ncer-a-case-report-and-literature-review
#17
Juan Antonio Chirinos Vega, César García Delgado, Alfonso Delgado Vergara
The endoscopic sumucosal disection (ESD) is an advanced endoscopic technique that achieves the curative resection of superficial neoplasms of the gastrointestinal tract, getting block exeresis with margins free of neoplasia avoiding surgery. However, tumors located in the esophagogastric junction, or pylorus, are technically more complex to resect by ESD. When a neoplasm settles in the pylorus, the anatomical characteristics of this region can affect the adequate assessment of the margins and the performance of the procedure...
January 2018: Revista de Gastroenterología del Perú: órgano Oficial de la Sociedad de Gastroenterología del Perú
https://www.readbyqxmd.com/read/29791389/gaussian-probe-beam-with-high-spherical-aberration-for-glucose-concentration-measurement
#18
Etna Yáñez, Moisés Cywiak, S Juan Manuel Franco
We demonstrate that an optical probe beam with high spherical aberration used for glucose concentration measurements gives better sensitivity compared to a probe beam free of aberrations, under similar conditions. We place a singlet focusing lens at a large distance from a laser source with a Gaussian intensity profile to obtain a spherically aberrated probe beam with negligible truncation. The aberrated probe beam propagates through a transparent liquid sample. Intensity profiles of the transmitted beam are recorded by means of a homodyne profiler to perform the glucose concentration measurements accurately...
May 20, 2018: Applied Optics
https://www.readbyqxmd.com/read/29791258/licorice-root-extract-and-magnesium-isoglycyrrhizinate-protect-against-triptolide-induced-hepatotoxicity-via-up-regulation-of-the-nrf2-pathway
#19
Qin-You Tan, Qian Hu, Sheng-Nan Zhu, Lu-Lu Jia, Juan Xiao, Hua-Zhen Su, Shao-Yuan Huang, Jing Zhang, Junfei Jin
Triptolide, the predominant biologically active component of the Chinese herb Tripterygium wilfordii Hook f., possesses numerous pharmacological activities, including anti-inflammatory, anti-fertility, anti-neoplastic, and immunosuppressive effects. However, toxicity and severe adverse effects, particularly hepatotoxicity, limit the clinical application of triptolide. Licorice root extract contains various bioactive compounds and is potent hepatoprotective. Magnesium isoglycyrrhizinate, a magnesium salt of the 18α-glycyrrhizic acid stereoisomer of glycyrrhizic acid, is used clinically in China to treat chronic viral hepatitis and acute drug-induced liver injury...
November 2018: Drug Delivery
https://www.readbyqxmd.com/read/29790874/point-of-care-whole-exome-sequencing-of-idiopathic-male-infertility
#20
Khalid A Fakhro, Haitham Elbardisi, Mohamed Arafa, Amal Robay, Juan L Rodriguez-Flores, Alya Al-Shakaki, Najeeb Syed, Jason G Mezey, Charbel Abi Khalil, Joel A Malek, Abdulla Al-Ansari, Sami Al Said, Ronald G Crystal
PurposeNonobstructive azoospermia (NOA) affects 1% of the male population; however, despite state-of-the-art clinical assessment, for most patients the cause is unknown. We capitalized on an analysis of multiplex families in the Middle East to identify highly penetrant genetic causes.MethodsWe used whole-exome sequencing (WES) in 8 consanguineous families and combined newly discovered genes with previously reported ones to create a NOA gene panel, which was used to identify additional variants in 75 unrelated idiopathic NOA subjects and 74 fertile controls...
April 12, 2018: Genetics in Medicine: Official Journal of the American College of Medical Genetics
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