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https://www.readbyqxmd.com/read/27913992/c-type-natriuretic-peptide-prevents-kidney-injury-and-attenuates-oxidative-and-inflammatory-responses-in-hemorrhagic-shock
#1
Gan Chen, Xiang Song, Yujing Yin, Sha Xia, Qingjun Liu, Guoxing You, Lian Zhao, Hong Zhou
Oxidative stress induced by hemorrhagic shock (HS) initiates a systemic inflammatory response, which leads to subsequent kidney injury. This study assessed the efficacy of c-type natriuretic peptide (CNP) in attenuating kidney injury in a rat model of hemorrhagic shock and resuscitation (HS/R). Sodium pentobarbital-anesthetized adult male Wistar rats underwent HS induced by the withdrawal of blood to a mean arterial pressure of 30-35 mmHg for 50 min. Then, the animals received CNP (25 μg/kg) or vehicle (saline) intravenously, followed byresuscitation with 1...
December 2, 2016: Amino Acids
https://www.readbyqxmd.com/read/27913953/neuroinflammation-induced-downregulation-of-hippocampacal-neuregulin-1-erbb4-signaling-in-the-parvalbumin-interneurons-might-contribute-to-cognitive-impairment-in-a-mouse-model-of-sepsis-associated-encephalopathy
#2
Rong Gao, Mu-Huo Ji, Da-Peng Gao, Run-Hua Yang, Shao-Gang Zhang, Jian-Jun Yang, Jin-Chun Shen
Sepsis-associated encephalopathy (SAE) is a common complication associated with poor prognosis in septic patients, but the underlying mechanism remains unclear. We hypothesized that disturbed neuregulin 1 (NRG1)-ErbB4 signaling in the parvalbumin interneurons was involved in sepsis-induced cognitive impairment in a mouse model of SAE. The SAE model was induced by cecal ligation/perforation (CLP). Animals were randomly divided into the following six groups: sham + vehicle group, sham + NRG1 group, CLP + vehicle group, CLP + NRG1 group, CLP + NRG1 + AG1478 (ErbB4 inhibitor) group, and CLP + minocycline group...
December 2, 2016: Inflammation
https://www.readbyqxmd.com/read/27913661/effects-of-exendin-4-on-the-intrarenal-renin-angiotensin-system-and-interstitial-fibrosis-in-unilateral-ureteral-obstruction-mice-exendin-4-and-unilateral-ureteral-obstruction
#3
Ying Le, Zongji Zheng, Junyu Xue, Mengling Cheng, Meiping Guan, Yaoming Xue
OBJECTIVE: The objective of this article is to investigate the renoprotecive effects of exendin-4 in a mouse model of unilateral ureteral obstruction (UUO) and explore the putative mechanisms. METHODS: Male Balbc mice underwent sham operation or UUO surgery, and then received intraperitoneal injection of vehicle or exendin-4, respectively. After 14 days, mice were sacrificed and the left kidneys were collected and analyzed by histology, immunohistochemistry, Western blot, quantitative real-time reverse transcription polymerase chain reaction, radioimmunoassay and enzyme-linked immunosorbent assay...
October 2016: Journal of the Renin-angiotensin-aldosterone System: JRAAS
https://www.readbyqxmd.com/read/27913135/mycophenolate-mofetil-attenuates-uterine-ischaemia-reperfusion-injury-in-a-rat-model
#4
Gulcin Sahin Ersoy, Meryem Kurek Eken, Ozge Cevik, Ozlem T Cilingir, Reshef Tal
This study evaluated the effect of mycophenolate mofetil (MMF) on uterine tissue preservation following ischaemia/reperfusion (I/R) injury. Uterine I/R injury was induced in rats by clamping the lower abdominal aorta and ovarian arteries for 30 min. Group I/R + V (n = 7) received vehicle alone while Group I/R + M (n = 7) received 20 mg/kg/day MMF. Control groups underwent sham surgery and received vehicle (Group C) or 20 mg/kg/day MMF (Group M) (n = 7 for both). Four hours after detorsion, uterine tissue 8-hydroxy-2'-deoxyguanosine (8-OHdG), glutathione, malondialdehyde (MDA), myeloperoxidase (MPO), superoxide dismutase (SOD) and serum ischaemia modified albumin (IMA) concentrations were measured...
November 21, 2016: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/27913127/co-assembly-of-doxorubicin-and-curcumin-targeted-micelles-for-synergistic-delivery-and-improving-anti-tumor-efficacy
#5
Wenzhuan Ma, Qiang Guo, Ying Li, Xiaohui Wang, Jinling Wang, Pengfei Tu
Chemotherapeutic drugs have a series of limitations in anti-tumor treatment, mainly including multidrug resistance (MDR) and serious adverse reactions. Co-delivery system with two or more synergistic therapeutic drugs is an effective strategy to settle these limitations. In this study, active tumor-targeted co-delivery micelles (DOX+Cur)-PMs, with two synergistic drugs of a therapeutic drug of doxorubicin (DOX) and a chemosensitizer of curcumin (Cur) co-encapsulated into hyaluronic acid-vitamin E succinate (HA-VES) graft copolymer, were prepared and delivered simultaneously into tumor cells for improving therapeutic effects of DOX...
November 29, 2016: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/27912887/nephroprotective-effects-of-%C3%AE-bisabolol-against-ischemic-reperfusion-acute-kidney-injury
#6
Tiago Lima Sampaio, Ramon Róseo Paula Pessoa Bezerra de Menezes, Marcus Felipe Bezerra da Costa, Gdayllon Cavalcante Meneses, Mauren Cristina Villalta Arrieta, Adriano José Maia Chaves Filho, Glayciane Bezerra de Morais, Alexandre Braga Libório, Renata Sousa Alves, Janaína Serra Azul Monteiro Evangelista, Alice Maria Costa Martins
BACKGROUND: Ischemia/reperfusion (I/R) in kidney is commonly related to acute kidney injury (AKI), essentially through oxidative stress. (-)-α-Bisabolol is a sesquiterpene isolated from the essential oil of a variety of plants, including chamomile, which has important antioxidant activity. STUDY DESIGN: This study intends to evaluate the nephroprotective activity of (-)-α-bisabolol (Bis) in both in vivo and in vitro models of kidney I/R. METHODS: Male Wistar rats were submitted to right nephrectomy, followed by ischemia by clamping of the renal artery in the left kidney for 60min...
December 15, 2016: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/27912882/tenuifolin-a-saponin-derived-from-radix-polygalae-exhibits-sleep-enhancing-effects-in-mice
#7
Qing Cao, Yong Jiang, Su-Ying Cui, Peng-Fei Tu, Yue-Mei Chen, Xiao-Li Ma, Xiang-Yu Cui, Yuan-Li Huang, Hui Ding, Jin-Zhi Song, Bin Yu, Zhao-Fu Sheng, Zi-Jun Wang, Ya-Ping Xu, Guang Yang, Hui Ye, Xiao Hu, Yong-He Zhang
BACKGROUND: Radix Polygalae, the dried root of Polygala tenuifolia, has been extensively used as a traditional Chinese medicine for promoting intelligence and tranquilization. Polygalasaponins extracted from the root of P. tenuifolia possess evident anxiolytic and sedative-hypnotic activities. Previous studies have reported that tenuifolin was a major constituent of polygalasaponins. PURPOSE: The currently study aims to investigate the hypnotic effect and possible mechanism of tenuifolin in freely moving mice...
December 15, 2016: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/27912750/fermented-barley-and-soybean-bs-mixture-enhances-intestinal-barrier-function-in-dextran-sulfate-sodium-dss-induced-colitis-mouse-model
#8
Jong Kyu Woo, Seungho Choi, Ju-Hee Kang, Dae Eung Kim, Byung-Serk Hurh, Jong-Eun Jeon, Sun Yeou Kim, Seung Hyun Oh
BACKGROUND: Inflammatory bowel disease (IBD) is characterized by chronic or relapsing immune system activation and inflammation within the gastrointestinal tract. The lack of safety and efficacy of standard therapies, the use of food supplements for managing IBD is increasing, and many studies have reported that various food supplements provide many beneficial effects for the IBD. METHODS: This study aimed to evaluate the anti-colitis effects of dietary supplementation with a fermented barley and soybean mixture (BS) on intestinal inflammation using a murine model of IBD...
December 3, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27912246/ecoinformatics-big-data-for-agricultural-entomology-pitfalls-progress-and-promise
#9
Jay A Rosenheim, Claudio Gratton
Ecoinformatics, as defined in this review, is the use of preexisting data sets to address questions in ecology. We provide the first review of ecoinformatics methods in agricultural entomology. Ecoinformatics methods have been used to address the full range of questions studied by agricultural entomologists, enabled by the special opportunities associated with data sets, nearly all of which have been observational, that are larger and more diverse and that embrace larger spatial and temporal scales than most experimental studies do...
November 28, 2016: Annual Review of Entomology
https://www.readbyqxmd.com/read/27911337/effect-of-the-butyrate-prodrug-pivaloyloxymethyl-butyrate-an9-on-a-mouse-model-for-spinal-muscular-atrophy
#10
Jonathan D Edwards, Matthew E R Butchbach
Spinal muscular atrophy (SMA) is an early-onset motor neuron disease that leads to loss of muscle function. Butyrate (BA)-based compounds markedly improve the survival and motor phenotype of SMA mice. In this study, we examine the protective effects of the BA prodrug pivaloyloxymethyl butyrate (AN9) on the survival of SMNΔ7 SMA mice. Oral administration of AN9 beginning at PND04 almost doubled the average lifespan of SMNΔ7 SMA mice. AN9 treatment also increased the growth rate of SMNΔ7 SMA mice when compared to vehicle-treated SMNΔ7 SMA mice...
November 29, 2016: Journal of Neuromuscular Diseases
https://www.readbyqxmd.com/read/27911310/cholinergic-modification-of-neurogenesis-and-gliosis-improves-the-memory-of%C3%A2-a%C3%AE-ppswe-psen1de9-alzheimer-s-disease-model-mice-fed-a-high-fat-diet
#11
Takeshi Matsuda, Tatsuhiro Hisatsune
We previously reported that neuroinflammation contributes to the amnesia of AβPPswe/PSEN1dE9 Alzheimer's disease model mice fed a high-fat diet to induce type-2 diabetes (T2DM-AD mice), but the underlying mechanism for the memory decline remained unclear. Recent studies have suggested that cholinergic modulation is involved in neuroinflammatory cellular reactions including neurogenesis and gliosis, and in memory improvement. In this study, we administered a broad-spectrum cholinesterase inhibitor, rivastigmine (2 mg/kg/day, s...
November 28, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27911073/reducing-risky-alcohol-use-what-health-care-systems-can-do
#12
Amity E Quinn, Mary Brolin, Maureen T Stewart, Brooke Evans, Constance Horgan
Risky, non-dependent alcohol use is prevalent in the United States, affecting 25% of adults (Centers for Disease Control and Prevention, 2014b). Massachusetts has higher rates of alcohol use and binge drinking than most states (Substance Abuse and Mental Health Services Administration, 2015). Serious physical, social, and economic consequences result. Excessive alcohol use contributes to cancer, cardiovascular disease, sleep disorders, birth defects, motor vehicle injuries, and suicide, and it complicates management of chronic illnesses (Green, McKnight-Eily, Tan, Mejia, & Denny, 2016; Laramee et al...
April 27, 2016: Issue Brief
https://www.readbyqxmd.com/read/27910959/acute-effects-of-nitrogen-dioxide-on-cardiovascular-mortality-in-beijing-an-exploration-of-spatial-heterogeneity-and-the-district-specific-predictors
#13
Kai Luo, Runkui Li, Wenjing Li, Zongshuang Wang, Xinming Ma, Ruiming Zhang, Xin Fang, Zhenglai Wu, Yang Cao, Qun Xu
The exploration of spatial variation and predictors of the effects of nitrogen dioxide (NO2) on fatal health outcomes is still sparse. In a multilevel case-crossover study in Beijing, China, we used mixed Cox proportional hazard model to examine the citywide effects and conditional logistic regression to evaluate the district-specific effects of NO2 on cardiovascular mortality. District-specific predictors that could be related to the spatial pattern of NO2 effects were examined by robust regression models...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27910047/lipidoid-mrna-nanoparticles-for-myocardial-delivery-in-rodents
#14
Irene C Turnbull, Ahmed A Eltoukhy, Daniel G Anderson, Kevin D Costa
An area of active research in the field of cardiac gene therapy aims to achieve high transfection efficiency without eliciting immune or inflammatory reactions. Nanomedicine offers an attractive alternative to traditional viral delivery vehicles because nanoparticle technology can enable safer and more controlled delivery of therapeutic agents. Here we describe the use of lipidoid nanoparticles for delivery of modified mRNA (modRNA) to the myocardium in vivo, with a focus on rodent models that represent a first step toward preclinical studies...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27910046/exosomes-based-gene-therapy-for-microrna-delivery
#15
Prabhu Mathiyalagan, Susmita Sahoo
Despite recent advances in scientific knowledge and clinical practice, cardiovascular disease management and treatment remain a major burden. While several treatment strategies using drugs and surgeries are being developed for cardiovascular manifestations, gene-based therapies hold significant promise. Recent findings from our laboratory unveiled a novel mechanism that exosomes, secreted nanovesicles from stem cells, mediate cardiac repair via transferring their unique repertoire of microRNAs (miRNA) to recipient cells in the heart...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27909943/simulating-different-dosing-scenarios-for-a-child-appropriate-valproate-er-formulation-in-a-new-pediatric-two-stage-dissolution-model
#16
Frank Karkossa, Antonia Krueger, Jana Urbaniak, Sandra Klein
Predictive in vitro test methods addressing the parameters relevant to drug release in the pediatric gastrointestinal tract could be an appropriate means for reducing the number of in vivo studies in children. However, dissolution models addressing the particular features of pediatric gastrointestinal physiology and typical pediatric dosing scenarios have not yet been described. The objective of the present study was to combine the knowledge on common vehicle types and properties and current information on pediatric gastrointestinal physiology to design a dissolution model that enables a biorelevant simulation of the gastrointestinal conditions in young children...
December 1, 2016: AAPS PharmSciTech
https://www.readbyqxmd.com/read/27909391/visual-behavior-differences-in-drivers-across-the-lifespan-a-digital-billboard-simulator-study
#17
Despina Stavrinos, Peyton R Mosley, Shannon M Wittig, Haley D Johnson, John S Decker, Virginia P Sisiopiku, Sharon C Welburn
Driver distraction is implicated in a significant portion of motor vehicle collisions; evidence has suggested that billboards can contribute to such distraction, but many knowledge gaps remain. The purpose of this study was to evaluate the effects of various types of billboards (static, 250-foot digital transition, 500-foot digital transition, and a control [no billboard] condition) and age group (teen, middle, and older) on visual behavior through the use of a driving simulator. To address gaps in the existing literature, the effects of age group and billboard type on the following visual attention variables were considered: percent of time participants looked at billboards, average glance length, number of glances, and glance pattern activity...
August 2016: Transportation Research. Part F, Traffic Psychology and Behaviour
https://www.readbyqxmd.com/read/27909014/sodium-4-phenylbutyrate-attenuates-myocardial-reperfusion-injury-by-reducing-the-unfolded-protein-response
#18
Osamu Takatori, Soichiro Usui, Masaki Okajima, Shuichi Kaneko, Hiroshi Ootsuji, Shin-Ichiro Takashima, Daisuke Kobayashi, Hisayoshi Murai, Hiroshi Furusho, Masayuki Takamura
BACKGROUND: The unfolded protein response (UPR) plays a pivotal role in ischemia-reperfusion (I/R) injury in various organs such as heart, brain, and liver. Sodium 4-phenylbutyrate (PBA) reportedly acts as a chemical chaperone that reduces UPR. In the present study, we evaluated the effect of PBA on reducing the UPR and protecting against myocardial I/R injury in mice. METHODS: Male C57BL/6 mice were subjected to 30-minute myocardial I/R, and were treated with phosphate-buffered saline (as a vehicle) or PBA...
December 1, 2016: Journal of Cardiovascular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/27908962/pediatric-traumatic-gallbladder-rupture
#19
W Landon Jackson, Patrick C Bonasso, R Todd Maxson
Blunt abdominal trauma causing gallbladder rupture is exceptionally rare in children. This injury is rare due to the size and anatomical location of the gallbladder, and a rapid diagnosis is often difficult to achieve due to delayed presentation. We report a ruptured gallbladder in an 11-year-old male as a result of blunt abdominal trauma from an all-terrain vehicle accident. Possible gallbladder injury was indicated on computed tomography and patient was successfully managed with cholecystectomy.
December 1, 2016: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/27908906/nice-issues-guidance-on-policies-to-reduce-vehicle-emissions
#20
Ingrid Torjesen
No abstract text is available yet for this article.
November 30, 2016: BMJ: British Medical Journal
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