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https://www.readbyqxmd.com/read/28077582/severity-of-plasma-leakage-is-associated-with-high-levels-of-interferon-%C3%AE-inducible-protein-10-hepatocyte-growth-factor-matrix-metalloproteinase-2-mmp-2-and-mmp-9-during-dengue-virus-infection
#1
Zhisheng Her, Yiu-Wing Kam, Victor C Gan, Bernett Lee, Tun-Linn Thein, Jeslin J L Tan, Linda K Lee, Katja Fink, David C Lye, Laurent Rénia, Yee-Sin Leo, Lisa F P Ng
BACKGROUND:  Dengue virus infection typically causes mild dengue fever, but, in severe cases, life-threatening dengue hemorrhagic fever (DHF) and dengue shock syndrome (DSS) occur. The pathophysiological hallmark of DHF and DSS is plasma leakage that leads to enhanced vascular permeability, likely due to a cytokine storm. METHODS:  Ninety patients with dengue during 2010-2012 in Singapore were prospectively recruited and stratified according to their disease phase, primary and secondary infection status, and disease severity, measured by plasma leakage...
January 1, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28074534/depolarizing-gaba-contributes-to-glutamatergic-network-rewiring-in-epilepsy
#2
Nazim Kourdougli, Christophe Pellegrino, Juho-Matti Renko, Stanislav Khirug, Geneviève Chazal, Tiina-Kaisa Kukko-Lukjanov, Sari E Lauri, Jean-Luc Gaiarsa, Liang Zhou, Angélique Peret, Eero Castrén, Raimo Kalevi Tuominen, Valérie Crépel, Claudio Rivera
OBJECTIVE: Rewiring of excitatory glutamatergic neuronal circuits is a major abnormality in epilepsy. Besides the rewiring of excitatory circuit, an abnormal depolarizing GABAergic drive has been hypothesized to participate in the epileptogenic processes. However, a remaining clinically relevant question is whether early post Status Epilepticus (SE) evoked chloride dysregulation is important for the remodeling of aberrant glutamatergic neuronal circuit. METHODS: Osmotic mini-pumps were used to infuse intracerebrally a specific inhibitor of depolarizing GABAergic transmission as well as a functionally blocking antibody towards the pan-neurotrophin receptor p75 (p75(NTR) )...
January 11, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/28067793/time-dependent-nerve-growth-factor-signaling-changes-in-the-rat-retina-during-optic-nerve-crush-induced-degeneration-of-retinal-ganglion-cells
#3
Louise A Mesentier-Louro, Sara De Nicolò, Pamela Rosso, Luigi A De Vitis, Valerio Castoldi, Letizia Leocani, Rosalia Mendez-Otero, Marcelo F Santiago, Paola Tirassa, Paolo Rama, Alessandro Lambiase
Nerve growth factor (NGF) is suggested to be neuroprotective after nerve injury; however, retinal ganglion cells (RGC) degenerate following optic-nerve crush (ONC), even in the presence of increased levels of endogenous NGF. To further investigate this apparently paradoxical condition, a time-course study was performed to evaluate the effects of unilateral ONC on NGF expression and signaling in the adult retina. Visually evoked potential and immunofluorescence staining were used to assess axonal damage and RGC loss...
January 5, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28060678/canine-central-nervous-system-neoplasm-phenotyping-using-tissue-microarray-technique
#4
I Spitzbarth, F Heinrich, V Herder, T Recker, P Wohlsein, W Baumgärtner
Tissue microarrays (TMAs) represent a useful technique for the simultaneous phenotyping of large sample numbers and are particularly suitable for histopathologic tumor research. In this study, TMAs were used to evaluate semiquantitatively the expression of multiple antigens in various canine central nervous system (CNS) neoplasms and to identify markers with potential discriminative diagnostic relevance. Ninety-seven canine CNS neoplasms, previously diagnosed on hematoxylin and eosin sections according to the World Health Organization classification, were investigated on TMAs, with each tumor consisting of 2 cylindrical samples from the center and the periphery of the neoplasm...
January 1, 2017: Veterinary Pathology
https://www.readbyqxmd.com/read/28057110/-the-status-of-postpartum-weight-retention-and-its-associated-factors-among-chinese-lactating-women-in-2013
#5
J Wang, Z Y Yang, X H Pang, Y F Duan, S Jiang, L Y Zhao, S A Yin, J Q Lai
Objective: To analyze the status of postpartum weight retention and its associated factors among Chinese lactating women in 2013. Methods: This study was based on the databank of Chinese National Nutrition and Health Surveillance in 2013. Using the multi-stage stratified cluster sampling method, we enrolled 12 514 women, at 0-24 months postpartum, from 55 sites in 30 provinces of China (excluding the Tibet Autonomous Region). Questionnaires were used to collect data on basic characteristics, physical activity, lifestyle, food intake, pre-pregnancy weight, weight before delivery, disease history during pregnancy, delivery date, delivery mode, parity and breastfeeding information...
December 6, 2016: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/28056277/-direct-medical-costs-and-influencing-factors-in-severe-hand-foot-and-mouth-disease-in-children-aged-between-six-months-and-five-years-old
#6
Y M Zheng, J Yang, Q H Liao
Objective: To estimate the direct medical cost of severe hand, foot and mouth disease (HFMD) in patients aged less than five years. Methods: A stratified sampling method was used to collect data on severe HFMD cases reported in the National HFMD surveillance database between Jan 1, 2012, and Dec 31, 2013. The sampling was referenced with the national aetiologic distribution of Enterovirus A71 (EV-A71), Coxsackievirus A16 (CV-A16) and other Enteroviruses (OEV) for severe HFMD cases and the included cases were distributed among seven geographic regions (Northeast, North China, Northwest, Central China, Southwest, East China and South China)...
January 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/28056266/-association-between-variations-in-protocadherin-15-gene-and-occupational-noise-induced-hearing-loss
#7
X R Xu, Q Y Yang, J Jiao, Y X Zheng, L H He, S F Yu, G Z Gu, G S Chen, W H Zhou, H Wu, Y H Li, H L Zhang, Z R Zhang
Objective: The aim of this study was to investigate whether genetic variability in the protocadherin 15 (PCDH15) gene may correspond with increased susceptibility to noise-induced hearing loss (NIHL) in a Chinese population. Methods: A nested case-control study was performed that followed a cohort of 7 445 noise-exposed workers in a steel factory of Henan province in China from January 1, 2006 to December 31, 2015. In this study, 394 cases who had an average hearing threshold of more than 40 dB (A) in high frequency were defined as the case group, and 721 controls who had an average hearing threshold of less than 35 dB (A) in high frequency and less than 25 dB (A) in speech frequency were defined as the control group...
January 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/28048556/tu-h-campus-tep3-03-dose-enhancement-by-gold-nanoparticles-around-the-bragg-peak-of-proton-beams
#8
J Kwon, K Sutherland, T Hashimoto, H Peng, L Xing, H Shirato, H Date
PURPOSE: To make clear the spatial distribution of dose enhancement around gold nanoparticles (GNPs) located near the proton Bragg peak, and to evaluate the potential of GNPs as a radio sensitizer. METHODS: The dose enhancement by electrons emitted from GNPs under proton irradiation was estimated by Geant4 Monte Carlo simulation toolkit in two steps. In an initial macroscopic step, 100 and 195 MeV proton beams were incident on a water cube, 30 cm on a side. Energy distributions of protons were calculated at four depths, 50% and 75% proximal to the Bragg peak, 100% peak, and 75% distal to the peak (P50, P75, Peak, and D75, respectively)...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28043266/-relationship-between-urinary-polycyclic-aromatic-hydrocarbon-metabolite-and-cell-cycle-of-lymphocyte-in-coke-oven-workers
#9
B L Pan, H T Zhang, H J Zhang, W T Chen, J Yang
Objective: To investigate the relationship between urinary polycyclic aromatic hydrocarbon metabolite and cell cycle of lymphocyte in coke oven workers. Methods: 437 coke oven workers and 163 work-ers in water treatment department were recruited in this study. Flow cytometry was used to detect the cell cycle of lymphocyte. For the measurement of urinary metabolites, urine samples were treated with β-glucuronidase and analyzed using HPLC with a fluorescence detector. Results: The concentrations of urinary 2-naphthol, 2-hydroxyfluorene, 9-phenanthrol and 1-hydroxypyrene l in coke oven workers were significantly higher than those in control group (P<0...
November 20, 2016: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/28039311/sleep-characteristics-and-cognitive-impairment-in-the-general-population-the-hypnolaus-study
#10
José Haba-Rubio, Helena Marti-Soler, Nadia Tobback, Daniela Andries, Pedro Marques-Vidal, Gérard Waeber, Peter Vollenweider, Armin von Gunten, Martin Preisig, Enrique Castelao, Mehdi Tafti, Raphaël Heinzer, Julius Popp
OBJECTIVE: To assess the association between sleep structure and cognitive impairment in the general population. METHODS: Data stemmed from 580 participants aged >65 years of the population-based CoLaus/PsyCoLaus study (Lausanne, Switzerland) who underwent complete sleep evaluation (HypnoLaus). Evaluations included demographic characteristics, personal and treatment history, sleep complaints and habits (using validated questionnaires), and a complete polysomnography at home...
December 30, 2016: Neurology
https://www.readbyqxmd.com/read/28034674/combination-of-exogenous-cell-transplantation-and-5-ht4-receptor-agonism-induce-endogenous-enteric-neural-crest-derived-cells-in-a-rat-hypoganglionosis-model
#11
Hui Yu, Bai-Jun Zheng, Wei-Kang Pan, Huai-Jie Wang, Chong Xie, Yu-Ying Zhao, Xin-Lin Chen, Yong Liu, Ya Gao
Enteric neural crest-derived cells (ENCCs) can migrate into endogenous ganglia and differentiate into progeny cells, and have even partially rescued bowel function; however, poor reliability and limited functional recovery after ENCC transplantation have yet to be addressed. Here, we investigated the induction of endogenous ENCCs by combining exogenous ENCC transplantation with a 5-HT4 receptor agonist mosapride in a rat model of hypoganglionosis, established by benzalkonium chloride treatment. ENCCs, isolated from the gut of newborn rats, were labeled with a lentiviral eGFP reporter...
December 26, 2016: Experimental Cell Research
https://www.readbyqxmd.com/read/28032807/region-specific-expression-of-precursor-and-mature-brain-derived-neurotrophic-factors-after-chronic-alcohol-exposure
#12
Jin-Wei Yang, Wei Ma, Yan-Lei Yang, Xian-Bin Wang, Xing-Tong Li, Tong-Tong Wang, Xiang-Peng Wang, Wei Gao, Jun-Yan Li, Xin-Fu Zhou, Jian-Hui Guo, Li-Yan Li
BACKGROUND: Alcohol abuse is a serious health problem worldwide that causes a variety of physical and mental disorders. Research has shown that the brain-derived neurotrophic factor (BDNF) plays an important role in alcohol addiction. The BDNF precursor (proBDNF) exhibits different actions than BDNF through separate receptors and pathways in the central nervous system. However, the effects of proBDNF and BDNF in alcohol addiction are not fully known. OBJECTIVES: The objective was to identify the expression patterns and effects of proBDNF and BDNF after chronic alcohol exposure...
December 29, 2016: American Journal of Drug and Alcohol Abuse
https://www.readbyqxmd.com/read/28024814/cumulative-risk-assessment-of-phthalates-associated-with-birth-outcomes-in-pregnant-chinese-women-a-prospective-cohort-study
#13
Hui Gao, Yuan-Yuan Xu, Kun Huang, Xing Ge, Yun-Wei Zhang, Hui-Yuan Yao, Ye-Qing Xu, Shuang-Qin Yan, Zhong-Xiu Jin, Jie Sheng, Peng Zhu, Jia-Hu Hao, Fang-Biao Tao
A prospective cohort study of a Chinese population of mother-neonate pairs (n = 3103) was conducted to investigate the relationship between the cumulative hazard index (HI) of combined diethyl phthalate (DEP), dibutyl phthalate (DBP), dibenzyl phthalate (BBzP) and di(2-ethylhexyl) phthalate (DEHP) exposure and birth outcomes. The estimated HI for phthalates was based on phthalate metabolite concentrations in urine collected between 5th and 14th gestational weeks. The median HI values according to the European Food Safety Authority tolerable daily intake (HITDI) and U...
December 23, 2016: Environmental Pollution
https://www.readbyqxmd.com/read/28013471/inflammation-and-oxidation-do-they-improve-after-kidney-transplantation-relationship-with-mortality-after-transplantation
#14
Laura Cañas, Eva Iglesias, María Cruz Pastor, Jaume Barallat, Javier Juega, Ioana Bancu, Ricardo Lauzurica
: Patients with chronic kidney disease (CKD) are characterized by a state of inflammation and oxidative stress that seems to improve after kidney transplantation (KT). Nevertheless, there is controversy regarding what is the best marker that better define inflammation and specially oxidative stress. OBJECTIVE: To evaluate the biomarkers which are associated with improvements in inflammation and lipid peroxidation in patients who have undergone KT. To evaluate the relationship between inflammation, lipid peroxidation and mortality in KT...
December 24, 2016: International Urology and Nephrology
https://www.readbyqxmd.com/read/27994772/effect-of-rna-interference-mediated-suppression-of-p75-on-the-viability-of-rat-notochordal-cells
#15
Jong-Beom Park, Dong-Gune Chang, Seung Yeol Oh, Eun-Young Park
STUDY DESIGN: In vitro cell culture model. PURPOSE: To investigate the effects of RNA interference (RNAi) on p75 expression and viability of rat notochordal cells treated with serum deprivation. OVERVIEW OF LITERATURE: RNAi enables the inhibition of specific genes by sequence-specific gene silencing using a double-stranded RNA. METHODS: Notochordal cells were isolated, cultured, and placed in 10% (control) or 0% (apoptosis-promoting) fetal bovine serum (FBS) for 48 hours...
December 2016: Asian Spine Journal
https://www.readbyqxmd.com/read/27990434/cornel-iridoid-glycoside-improves-locomotor-impairment-and-decreases-spinal-cord-damage-in-rats
#16
Wen-Jing Tang, Deng-Lei Ma, Cui-Cui Yang, Li Zhang, Ya-Li Li, Lan Zhang, Lin Li
Purpose. This study was to investigate the effects of cornel iridoid glycoside (CIG) on spinal cord injury (SCI) in rats. Methods. The thoracic cord (at T9) of rats was injured by clip compression for 30 sec. Locomotor function was assessed using the Basso, Beattie, and Bresnahan (BBB) rating scale. Neuroanatomic stereological parameters as well as Nogo-A, p75 neurotrophin receptor (p75NTR), and ROCKII expression were measured by histological processing, immunohistochemistry, and stereological analyses. The axons passing through the lesion site were detected by BDA tracing...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27964967/expression-and-signaling-of-ngf-in-the-healthy-and-injured-retina
#17
REVIEW
Tarcyane Barata Garcia, Margrit Hollborn, Andreas Bringmann
This review summarizes the present knowledge concerning the retinal localization of the nerve growth factor (NGF), its precursor proNGF, and the receptors TrkA and p75(NTR) in the developing and mature rodent retina. We further discuss the changes in the expression of NGF and the receptors in experimental models of retinal disorders and diseases like inherited retinitis pigmentosa, retinal detachment, glaucoma, and diabetic retinopathy. Since proNGF is now recognized as a bioactive signaling molecule which induces cell death through p75(NTR) activation, the role of proNGF in the induction of retinal cell loss under neurodegenerative conditions is also highlighted...
December 2, 2016: Cytokine & Growth Factor Reviews
https://www.readbyqxmd.com/read/27955671/pro-epileptogenic-effects-of-viral-like-inflammation-in-both-mature-and-immature-brains
#18
Nina Dupuis, Andrey Mazarati, Béatrice Desnous, Vibol Chhor, Bobbi Fleiss, Tifenn Le Charpentier, Sophie Lebon, Zsolt Csaba, Pierre Gressens, Pascal Dournaud, Stéphane Auvin
BACKGROUND: Infectious encephalitides are most often associated with acute seizures during the infection period and are risk factors for the development of epilepsy at later times. Mechanisms of viral encephalitis-induced epileptogenesis are poorly understood. Here, we evaluated the contribution of viral encephalitis-associated inflammation to ictogenesis and epileptogenesis using a rapid kindling protocol in rats. In addition, we examined whether minocycline can improve outcomes of viral-like brain inflammation...
December 12, 2016: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/27943583/human-dental-pulp-stem-cells-expressing-stro-1-c-kit-and-cd34-markers-in-peripheral-nerve-regeneration
#19
Gianluca Carnevale, Alessandra Pisciotta, Massimo Riccio, Laura Bertoni, Sara De Biasi, Lara Gibellini, Alessio Zordani, Gian Maria Cavallini, Giovanni Battista La Sala, Giacomo Bruzzesi, Adriano Ferrari, Andrea Cossarizza, Anto de Pol
Peripheral nerve injuries are a commonly encountered clinical problem and often result in long-term functional defects. The application of stem cells able to differentiate in Schwann cells-like cells in vitro and in vivo, could represent an attractive therapeutic approach for the treatment of nerve injuries. Further, stem cells sources sharing the same embryological origin of Schwann cells might be considered a suitable tool. The aim of this study was to demonstrate the ability of a neuroectodermal subpopulation of human STRO-1+/c-Kit+/CD34+ DPSCs, expressing P75(NTR) , Nestin and SOX-10, to differentiate into Schwann cells-like cells in vitro and to promote axonal regeneration in vivo, which led to functional recovery as measured by sustained gait improvement, in animal rat model of peripheral nerve injury...
December 11, 2016: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/27934786/electrospun-polycaprolactone-chitosan-scaffolds-for-nerve-tissue-engineering-physicochemical-characterization-and-schwann-cell-biocompatibility
#20
Ena Bolaina-Lorenzo, Cristina Martínez-Ramos, Manuel Monleón-Pradas, Wilberth Herrera-Kao, Juan V Cauich-Rodríguez, José M Cervantes-Uc
Electrospun polycaprolactone (PCL)/chitosan (CH) blend scaffolds with different CH weight ratios were prepared to study the effect of scaffold composition on its physicochemical and biological properties. Scanning electron microscopy showed bead-free homogeneous randomly arranged nanofibers whose average diameter decreased from 240 to 110 nm with increasing CH content. The infrared spectra of the PCL/CH blends were very similar to the neat PCL scaffold. Energy-dispersive x-ray spectroscopy analysis confirmed the presence of carbon, oxygen and nitrogen in the scaffolds, although fluorine-from chemicals used as solvent-was also detected...
December 9, 2016: Biomedical Materials
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