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https://www.readbyqxmd.com/read/28441825/-progressive-cavitating-leukoencephalopathy-four-cases-and-literatures-review
#1
C H Ren, F Fang, H Cheng, C H Ding, C H Chen, Y J Zhang, D M Shen
Objective: To analyze the clinical and genetic features of progressive cavitating leukoencephalopathy (PCL). Method: The data of clinical and genetic features of 4 PCL patients diagnosed by Beijing Children's Hospital between January 2015 and January 2016 were analyzed. The cases with complete clinical data retrieved on literature search at China National Knowledge Infrastructure, Wanfang Data Knowledge Service Platform and PubMed (up to August 2016) by using search terms of"NDUFV1" ,"NDUFS1" , or"leukoencephalopathy" , were summarized...
April 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/28441796/role-of-dietary-crocin-in-in-vivo-melanoma-tumor-remission
#2
Hamid A Bakshi, Faruck Lukmanul Hakkim, Smitha Sam, Farideh Javid
Background: Melanoma is a deadly form of malignancy. Early diagnosis might pave the way to cure but its aggressive nature leads to rapid dissemination and colonization of distant organs. Dietary herbs may play a significant role in prevention of cancer. In this study, we tested anti-tumor efficacy of the Crocus sativus derived active constituent crocin, well established to have anti-cancer properties in different cancer models by our group and other groups and other groups. Notably, crocin is reported to exert anti-proliferative effect on melanoma cells (B16F10) in vitro...
March 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28441781/dengue-virus-non-structural-protein-5
#3
REVIEW
Abbas El Sahili, Julien Lescar
The World Health Organization estimates that the yearly number of dengue cases averages 390 million. This mosquito-borne virus disease is endemic in over 100 countries and will probably continue spreading, given the observed trend in global warming. So far, there is no antiviral drug available against dengue, but a vaccine has been recently marketed. Dengue virus also serves as a prototype for the study of other pathogenic flaviviruses that are emerging, like West Nile virus and Zika virus. Upon viral entry into the host cell and fusion of the viral lipid membrane with the endosomal membrane, the viral RNA is released and expressed as a polyprotein, that is then matured into three structural and seven non-structural (NS) proteins...
April 24, 2017: Viruses
https://www.readbyqxmd.com/read/28441774/brain-derived-neurotrophic-factor-mediated-perfluorooctane-sulfonate-induced-neurotoxicity-via-epigenetics-regulation-in-sk-n-sh-cells
#4
Xin-Xin Guo, Qing-Zhi He, Wu Li, Ding-Xin Long, Xiao-Yuan Pan, Cong Chen, Huai-Cai Zeng
Perfluorooctane sulfonate (PFOS), a new kind of persistent organic pollutant, is widely distributed in the environment and exists in various organisms, where it is also a neurotoxic compound. However, the potential mechanism of its neurotoxicity is still unclear. To examine the role of epigenetics in the neurotoxicity induced by PFOS, SK-N-SH cells were treated with different concentrations of PFOS or control medium (0.1% DMSO) for 48 h. The mRNA levels of DNA methyltransferases (DNMTs) and Brain-derived neurotrophic factor (BDNF), microRNA-16, microRNA-22, and microRNA-30a-5p were detected by Quantitative PCR (QPCR)...
April 24, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28441760/supplementation-with-a-polyphenol-rich-extract-perfload-%C3%A2-improves-physical-performance-during-high-intensity-exercise-a-randomized-double-blind-crossover-trial
#5
Julien Cases, Cindy Romain, Cristian Marín-Pagán, Linda H Chung, José Miguel Rubio-Pérez, Caroline Laurent, Sylvie Gaillet, Emmanuelle Prost-Camus, Michel Prost, Pedro E Alcaraz
Workout capacity is energy-production driven. To produce peak metabolic power outputs, the organism predominantly relies more on anaerobic metabolism, but this undoubtedly has a negative and limiting impact on muscle function and performance. The aim of the study was to evaluate if an innovative polyphenol-based food supplement, PerfLoad(®), was able to improve metabolic homeostasis and physical performance during high-intensity exercises under anaerobic conditions. The effect of a supplementation has been investigated on fifteen recreationally-active male athletes during a randomized, double-blind and crossover clinical investigation...
April 24, 2017: Nutrients
https://www.readbyqxmd.com/read/28441752/photocatalytic-and-adsorption-performances-of-faceted-cuprous-oxide-cu%C3%A2-o-particles-for-the-removal-of-methyl-orange-mo-from-aqueous-media
#6
Weng Chye Jeffrey Ho, Qiuling Tay, Huan Qi, Zhaohong Huang, Jiao Li, Zhong Chen
Particles of sub-micron size possess significant capacity to adsorb organic molecules from aqueous media. Semiconductor photocatalysts in particle form could potentially be utilized for dye removal through either physical adsorption or photo-induced chemical process. The photocatalytic and adsorption capabilities of Cu₂O particles with various exposed crystal facets have been studied through separate adsorption capacity test and photocatalytic degradation test. These crystals display unique cubic, octahedral, rhombic dodecahedral, and truncated polyhedral shapes due to specifically exposed crystal facet(s)...
April 23, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28441746/high-performance-prediction-of-human-estrogen-receptor-agonists-based-on-chemical-structures
#7
Yuki Asako, Yoshihiro Uesawa
Many agonists for the estrogen receptor are known to disrupt endocrine functioning. We have developed a computational model that predicts agonists for the estrogen receptor ligand-binding domain in an assay system. Our model was entered into the Tox21 Data Challenge 2014, a computational toxicology competition organized by the National Center for Advancing Translational Sciences. This competition aims to find high-performance predictive models for various adverse-outcome pathways, including the estrogen receptor...
April 23, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28441745/breast-cancer-screening-programmes-across-the-who-european-region-differences-among-countries-based-on-national-income-level
#8
Emma Altobelli, Leonardo Rapacchietta, Paolo Matteo Angeletti, Luca Barbante, Filippo Valerio Profeta, Roberto Fagnano
Breast cancer (BC) is the most frequent tumour affecting women all over the world. In low- and middle-income countries, where its incidence is expected to rise further, BC seems set to become a public health emergency. The aim of the present study is to provide a systematic review of current BC screening programmes in WHO European Region to identify possible patterns. Multiple correspondence analysis was performed to evaluate the association among: measures of occurrence; GNI level; type of BC screening programme; organization of public information and awareness campaigns regarding primary prevention of modifiable risk factors; type of BC screening services; year of screening institution; screening coverage and data quality...
April 23, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28441726/sodium-and-potassium-intake-in-healthy-adults-in-thessaloniki-greater-metropolitan-area-the-salt-intake-in-northern-greece-sing-study
#9
Eleni Vasara, Georgios Marakis, Joao Breda, Petros Skepastianos, Maria Hassapidou, Anthony Kafatos, Nikolaos Rodopaios, Alexandra A Koulouri, Francesco P Cappuccio
A reduction in population sodium (as salt) consumption is a global health priority, as well as one of the most cost-effective strategies to reduce the burden of cardiovascular disease. High potassium intake is also recommended to reduce cardiovascular disease. To establish effective policies for setting targets and monitoring effectiveness within each country, the current level of consumption should be known. Greece lacks data on actual sodium and potassium intake. The aim of the present study was therefore to assess dietary salt (using sodium as biomarker) and potassium intakes in a sample of healthy adults in northern Greece, and to determine whether adherence to a Mediterranean diet is related to different sodium intakes or sodium-to-potassium ratio...
April 22, 2017: Nutrients
https://www.readbyqxmd.com/read/28441723/phenolic-compounds-isolated-from-caesalpinia-coriaria-induce-s-and-g2-m-phase-cell-cycle-arrest-differentially-and-trigger-cell-death-by-interfering-with-microtubule-dynamics-in-cancer-cell-lines
#10
Jessica Nayelli Sánchez-Carranza, Laura Alvarez, Silvia Marquina-Bahena, Enrique Salas-Vidal, Verónica Cuevas, Elizabeth W Jiménez, Rafael A Veloz G, Maelle Carraz, Leticia González-Maya
Caesalpinia coriaria (C. coriaria), also named cascalote, has been known traditionally in México for having cicatrizing and inflammatory properties. Phytochemical reports on Caesalpinia species have identified a high content of phenolic compounds and shown antineoplastic effects against cancer cells. The aim of this study was to isolate and identify the active compounds of a water:acetone:ethanol (WAE) extract of C. coriaria pods and characterize their cytotoxic effect and cell death induction in different cancer cell lines...
April 22, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28441708/dosimetric-comparison-of-three-different-radiotherapy-techniques-in-antrum-located-stomach-cancer
#11
Alparslan Serarslan, Nilgun Ozbek Okumus, Bilge Gursel, Deniz Meydan, Yalcin Dastan, Talat Aksu
Background: The current optimal radiotherapy (RT) planning technique for stomach cancer is controversial. The design of RT for stomach cancer is difficult and differs according to tumor localization. Dosimetric and clinical studies have been performed in patients with different tumor localizations. This may be the main source of inconsistencies in study results. For this reason, we attempted to find the optimal RT technique for patients with stomach cancer in similar locations. Methods: This study was based on the computed tomography datasets of 20 patients with antrum-located stomach cancer...
March 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28441690/the-postoperative-model-for-end-stage-liver-disease-score-as-a-predictor-of-short-term-outcome-after-transplantation-of-extended-criteria-donor-livers
#12
Tamas Benko, Anja Gallinat, Thomas Minor, Fuat H Saner, Georgios C Sotiropoulos, Andreas Paul, Dieter P Hoyer
BACKGROUND: Recently, the postoperative Model for End stage Liver Disease score (POPMELD) was suggested as a definition of postoperative graft dysfunction and a predictor of outcome after liver transplantation (LT). AIM: The aim of the present study was to validate this concept in the context of extended criteria donor (ECD) organs. PATIENTS AND METHODS: Single-center prospectively collected data (OPAL study/01/11-12/13) of 116 ECD LTs were utilized...
June 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28441680/magnetic-resonance-imaging-safety-of-magnetically-controlled-growing-rods-in-an-in-vivo-animal-model
#13
Mehmet Eroglu, Gokhan Demirkiran, Ismail Aykut Kocyigit, Hasan Bilgili, Mehmet Burak Kaynar, Ali Bumin, Sadan Ozcan, Muharrem Yazici
STUDY DESIGN: Experimental animal study. OBJECTIVE: To investigate the interaction between magnetically controlled growing rods (MCGRs) and magnetic resonance imaging (MRI). SUMMARY OF BACKGROUND DATA: Growing rod treatment through serial operations results in adverse effects on the patient and high treatment costs. MCGRs can be lengthened noninvasively in an outpatient setting and with lower treatment costs. When MRI investigation is required, the interaction between MCGRs and MRI is an issue of concern in patients with MCGRs...
May 1, 2017: Spine
https://www.readbyqxmd.com/read/28441672/how-to-lead-the-way-through-complexity-constraint-and-uncertainty-in-academic-health-science-centers
#14
Susan J Lieff, Francis J Yammarino
Academic medicine is in an era of unprecedented and constant change due to fluctuating economies, globalization, emerging technologies, research, and professional and educational mandates. Consequently, academic health science centers (AHSCs) are facing new levels of complexity, constraint, and uncertainty. Currently, AHSC leaders work with competing academic and health service demands and are required to work with and are accountable to a diversity of stakeholders. Given the new challenges and emerging needs, the authors believe the leadership methods and approaches AHSCs have used in the past that led to successes will be insufficient...
May 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/28441669/keep-them-breathing-cystic-fibrosis-pathophysiology-diagnosis-and-treatment
#15
Sheena D Brown, Rachel White, Phil Tobin
Cystic fibrosis (CF) affects more than 30,000 people in the United States and 80,000 people worldwide. This life-threatening genetic disorder causes a buildup of thick, viscous mucus secretions in various organ systems, most commonly the gastrointestinal, pulmonary, and genitourinary systems. This article reviews the clinical manifestations, diagnosis, and monitoring of patients with CF as well as guidelines for management and emerging pharmacologic treatments.
May 2017: JAAPA: Official Journal of the American Academy of Physician Assistants
https://www.readbyqxmd.com/read/28441657/involvement-of-the-multidrug-and-toxic-compound-extrusion-transporter-in-testosterone-release-from-cultured-pig-leydig-cells
#16
Mitsuhiro Goda, Kana Oda, Atsuko Oda, Naoki Kobayashi, Masato Otsuka
Testosterone is considered to be released from Leydig cells via passive diffusion because of its hydrophobicity; however, the exact mechanism underlying testosterone secretion and the transporter involved are both unknown. Multidrug and toxic compound extrusion (MATE) transporters are predominantly found in the kidneys and liver and are thought to function in the elimination of metabolic organic cations during the final step of excretion in the kidney. In contrast, mMATE2 has been shown to be predominantly expressed in testicular Leydig cells...
April 26, 2017: Pharmacology
https://www.readbyqxmd.com/read/28441629/sex-matters-the-effects-of-biological-sex-on-adipose-tissue-biology-and-energy-metabolism
#17
REVIEW
Teresa G Valencak, Anne Osterrieder, Tim J Schulz
Adipose tissue is a complex and multi-faceted organ. It responds dynamically to internal and external stimuli, depending on the developmental stage and activity of the organism. The most common functional subunits of adipose tissue, white and brown adipocytes, regulate and respond to endocrine processes, which then determine metabolic rate as well as adipose tissue functions. While the molecular aspects of white and brown adipose biology have become clearer in the recent past, much less is known about sex-specific differences in regulation and deposition of adipose tissue, and the specific role of the so-called pink adipocytes during lactation in females...
April 13, 2017: Redox Biology
https://www.readbyqxmd.com/read/28441621/prion-like-transmission-of-pathogenic-protein-aggregates-in-genetic-models-of-neurodegenerative-disease
#18
REVIEW
Margaret Mp Pearce
A key pathological hallmark of most neurodegenerative diseases is the misfolding of a particular protein, leading to deposition of toxic protein aggregates in brain tissue. Recent data provide compelling evidence that pathogenic protein aggregates have prion-like properties-they self-replicate by templated misfolding of monomeric proteins and spread between individual cells. Studies in genetic model organisms have expanded our understanding of how prion-like pathogenic aggregates propagate in vivo, revealing potential roles for spreading along neural networks and key cellular processes in both neurons and glial cells...
April 22, 2017: Current Opinion in Genetics & Development
https://www.readbyqxmd.com/read/28441613/atmospheric-degradation-of-2-chloroethyl-vinyl-ether-allyl-ether-and-allyl-ethyl-ether-kinetics-with-oh-radicals-and-uv-photochemistry
#19
M Antiñolo, A J Ocaña, J P Aranguren, S I Lane, J Albaladejo, E Jiménez
Unsaturated ethers are oxygenated volatile organic compounds (OVOCs) emitted by anthropogenic sources. Potential removal processes in the troposphere are initiated by hydroxyl (OH) radicals and photochemistry. In this work, we report for the first time the rate coefficients of the gas-phase reaction with OH radicals (kOH) of 2-chloroethyl vinyl ether (2ClEVE), allyl ether (AE), and allyl ethyl ether (AEE) as a function of temperature in the 263-358 K range, measured by the pulsed laser photolysis-laser induced fluorescence technique...
April 18, 2017: Chemosphere
https://www.readbyqxmd.com/read/28441609/dechlorane-plus-induces-oxidative-stress-and-decreases-cyclooxygenase-activity-in-the-blue-mussel
#20
Pierre-Luc Gagné, Marlène Fortier, Marc Fraser, Lise Parent, Cathy Vaillancourt, Jonathan Verreault
Dechlorane Plus (DP) is a chlorinated flame retardant used mainly in electrical wire and cable coating, computer connectors, and plastic roofing materials. Concentrations of DP (syn and anti isomers) are increasingly being reported in aquatic ecosystems worldwide. However, there is exceedingly little information on the exposure-related toxicity of DP in aquatic organisms, especially in bivalves. The objective of this study was to investigate the in vivo and in vitro effects of DP exposure on histopathology, lipid peroxidation (LPO) levels, cyclooxygenase (COX) activity, phagocytosis capacity and efficiency, and DNA strand breakage in the blue mussel (Mytilus edulis) following a 29days exposure (0...
April 17, 2017: Aquatic Toxicology
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