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https://www.readbyqxmd.com/read/28524628/myenteric-neuroprotective-role-of-aspirin-in-acute-and-chronic-experimental-infections-with-trypanosoma-cruzi
#1
J Y Oda, M O Belém, T M Carlos, R Gouveia, B F C Luchetti, N M Moreira, C L Massocatto, S M Araújo, D M G Sant Ana, N C Buttow, P Pinge-Filho, E J A Araújo
BACKGROUND: Experimental and clinical studies have shown that myenteric neuron cell death during infection with Trypanosoma cruzi mainly occurs in the esophagus and colon, resulting in megaesophagus and megacolon, respectively. Evidence suggests that the cyclooxygenase enzyme (COX) is involved in the T. cruzi invasion process. The use of low-dose aspirin (ASA), a COX-1/COX-2 inhibitor, has been shown to reduce infection with T. cruzi. Therefore, in this study, we evaluated the effects of treatment with low-dose ASA on myenteric colonic neurons during murine infection with T...
May 19, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28498410/neuropeptide-y-suppresses-epileptiform-discharges-by-regulating-ampa-receptor-glur2-subunit-in-rat-hippocampal-neurons
#2
Wei Bu, Wen-Qing Zhao, Wen-Ling Li, Chang-Zheng Dong, Zhe Zhang, Qi-Jun Li
The present study aimed to investigate the effects of neuropeptide Y (NPY) on the α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptor glutamate receptor 2 (GluR2) subunit in epileptiform discharge hippocampal neurons. Hippocampal neurons were harvested from neonatal Sprague‑Dawley rats aged <24 h and primarily cultured in vitro. At day 12 following culture, hippocampal neurons were divided into the following groups: Control, Mg2+‑free, NPY+Mg2+‑free and BIBP3226+NPY+Mg2+‑free...
May 10, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28488007/effects-of-rat-anti-mouse-interleukin-6-receptor-antibody-on-the-recovery-of-cognitive-function-in-stroke-mice
#3
Jun Wei, Chongling Sun, Chang Liu, Qimei Zhang
This study aimed to investigate the effects of rat anti-mouse interleukin (IL)-6 receptor antibody (MR16-1) on the recovery of cognitive function in stroke mice. Adult male C57BL/6 mice were subjected to middle cerebral artery occlusion (MCAO). Mice were randomly assigned into three groups: sham group, model group, and MR16-1 group. After the treatment of MR16-1, spatial learning and memory performance of mice were evaluated by the Morris water maze (MWM) and Y-maze tests. Then, brain slices were obtained and infarct volume and neuronal apoptosis were assessed by 2,3,5-triphenyltetrazolium chloride (TTC) staining and Terminal deoxynucleotidyl transferase (TdT)-mediated dUTP nick end labeling (TUNEL) assay, respectively...
May 9, 2017: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/28486037/role-of-arcuate-nucleus-in-the-regulation-of-feeding-behavior-in-the-process-of-altitude-acclimatization-in-rats
#4
Xiang-Wen Liu, Jie Yin, Qi-Sheng Ma, Chu-Chu Qi, Ji-Ying Mu, Lang Zhang, Li-Ping Gao, Yu-Hong Jing
Liu, Xiang-Wen, Jie Yin, Qi-Sheng Ma, Chu-Chu Qi, Ji-Ying Mu, Lang Zhang, Li-Ping Gao, and Yu-Hong Jing. Role of arcuate nucleus in the regulation of feeding behavior in the process of altitude acclimatization in rats. High Alt Med Biol. 00:000-000, 2017.-Highly efficient energy utilization and metabolic homeostasis maintenance rely on neuromodulation. Altitude exposure is known to stimulate neuroendocrine systems to respond to acute hypoxia and adaptive acclimatization. However, limited data on how the adaptive regulation of the arcuate nucleus performs in the process of altitude acclimatization are available...
May 9, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28482757/n-3-polyunsaturated-fatty-acid-supplementation-restored-impaired-memory-and-gabaergic-synaptic-efficacy-in-the-hippocampus-of-stressed-rats
#5
Miguel Ángel Pérez, Valentín Peñaloza-Sancho, Juan Ahumada, Marco Fuenzalida, Alexies Dagnino-Subiabre
While chronic stress induces dendritic atrophy in the hippocampus and impairs learning and memory, supplementation with n-3 polyunsaturated fatty acids (n-3 PUFA) is known to improve learning and memory of control rats. Whether n-3 PUFA supplementation improves dendritic morphology, synaptic transmission, and memory of chronically stressed rats remains unknown. In this work, we randomly assigned male Sprague-Dawley rats in four experimental groups: two unsupplemented groups, control and stress, and two supplemented groups with n-3 PUFA (DHA and EPA mix), control + n-3 PUFA and stress + n-3 PUFA...
May 8, 2017: Nutritional Neuroscience
https://www.readbyqxmd.com/read/28478802/electroacupuncture-ameliorates-spatial-learning-and-memory-impairment-via-attenuating-nox2-related-oxidative-stress-in-a-rat-model-of-alzheimer-s-disease-induced-by-a%C3%AE-1-42
#6
G Wu, L Li, H-M Li, Y Zeng, W-C Wu
Alzheimer's disease (AD) is a chronic neurodegenerative disorder characterized by progressive deterioration of cognition and memory, in which oxidative stress has been played a crucial role in the pathology of AD. Electroacupuncture (EA) is a widely used therapy based on traditional acupuncture combined with modern electrotherapy in Asia. The present study aimed to determine the effects of EA treatment on spatial learning and memory impairment, and to elucidate the status of NOX2-related oxidative stress in a rat model of Alzheimer's disease induced by Beta-amyloid1-42 (Aβ1-42)...
April 29, 2017: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/28472177/ubiquitin-carboxyl-terminal-esterase-l1-uchl1-is-associated-with-stem-like-cancer-cell-functions-in-pediatric-high-grade-glioma
#7
Patricia C Sanchez-Diaz, Judy C Chang, Emily S Moses, Tu Dao, Yidong Chen, Jaclyn Y Hung
Pediatric high-grade gliomas represent 8-12% of all primary tumors of the nervous system in children. Five-year survival for these pediatric aggressive tumors is poor (15-35%) indicating the need to develop better treatments for pediatric high-grade gliomas. In this work we used SF188 and SJ-GBM2 cell lines to study the function of the ubiquitin carboxyl-terminal esterase L1 (UCHL1), a deubiquitinase de-regulated in several cancers, in pediatric high-grade gliomas. UCHL1 depletion in SF188 and SJ-GBM2 glioma cells was associated with decreased cell proliferation and invasion, along with a reduced ability to grow in soft agar and to form spheres (i...
2017: PloS One
https://www.readbyqxmd.com/read/28434264/exploring-effects-of-remote-ischemic-preconditioning-in-a-pig-model-of-hypothermic-circulatory-arrest
#8
Johanna Herajärvi, Tuomas Anttila, Elitsa Y Dimova, Tuomas Laukka, Mikko Myllymäki, Henri Haapanen, Benjamin A Olenchock, Hannu Tuominen, Ulla Puistola, Peeter Karihtala, Kai Kiviluoma, Peppi Koivunen, Vesa Anttila, Tatu Juvonen
OBJECTIVES: During aortic and cardiac surgery, risks for mortality and morbidity are inevitable. Surgical setups involving deep hypothermic circulatory arrest (DHCA) are effective to achieve organ protection against ischemic injury. The aim of this study was to identify humoural factors mediating additive protective effects of remote ischemic preconditioning (RIPC) in a porcine model of DHCA. DESIGN: Twenty-two pigs were randomized into the RIPC group (n = 11) and the control group (n = 11)...
April 24, 2017: Scandinavian Cardiovascular Journal: SCJ
https://www.readbyqxmd.com/read/28417467/retraction-statement-cxcl12-cxcr4-chemokine-signaling-in-spinal-glia-induces-pain-hypersensitivity-through-mapks-mediated-neuroinflammation-in-bone-cancer-rats
#9
(no author information available yet)
'CXCL12/CXCR4 chemokine signaling in spinal glia induces pain hypersensitivity through MAPKs-mediated neuroinflammation in bone cancer rats' by Hu X.-M., Liu Y.-N., Zhang H.-L., Cao S.-B., Zhang T., Chen L.-P. and Shen W. The above article from Journal of Neurochemistry, published online on 26 January 2015 and in volume 132, issue 4, pages 452-463 (available through www.onlinelibrary.wiley.com), and its subsequent Corrigendum, published online on 5 February 2015 and in volume 132, issue 4, p. 487, have been retracted by agreement between the Journal's Editor-in-Chief, Jörg Schulz, corresponding author Wen Shen on behalf of the authors, and John Wiley & Sons Ltd...
May 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28416843/-influences-of-repeated-propofol-anesthesia-on-hippocampal-apoptosis-and-long-term-learning-and-memory-abilities-of-neonatal-rats
#10
Y J Wang, X Y Guo, J Wang
OBJECTIVE: To investigate the influences of repeated propofol anesthesia on the hippocampal apoptosis and the long-term learning and memory abilities of neonatal rats. METHODS: In the study, 45 male Sprague-Dawley rats, aged 7 days, were randomly divided into 3 group (n=15 each): control group (C group) that received intralipid 7.5 mL/kg intraperitioneal (IP) once a day×7 days; group propofol 1 (P1) that received propofol 75 mg/kg IP once a day×7 days; group propofol 2 (P2) that received intralipid 7...
April 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28412793/-the-effect-of-restraint-stress-on-masseter-mechanical-hyperalgesia-and-the-activity-of-neurons-and-astrocytes-in-the-spinal-trigeminal-nucleus-caudalis-in-rats
#11
W Q Lin, M Zhang, Y H Zhao, Q Li, J Wang, Y J Chen
Objective: To investigate the effect of restraint stress on masseter mechanical hyperalgesia and the activity of neurons and astrocytes in the spinal trigeminal nucleus caudalis (Vc). Methods: The animals were randomly divided into the control group, 1-, 3-, 5-, 7-, 9-, 11-and 14-day stress groups, with 10 rats in each group. The body weight increase and behavior tests were used to testify the animal model. The mechanical sensitivity of masseter of the rat before and after the stress was measured with Von Frey filaments...
April 9, 2017: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
https://www.readbyqxmd.com/read/28408781/inflammatory-bowel-disease-affects-density-of-nitrergic-nerve-fibers-in-the-mucosal-layer-of-the-canine-gastrointestinal-tract
#12
Andrzej Rychlik, Slawomir Gonkowski, Marcin Nowicki, Jaroslaw Calka
The objective of this study was to determine the effect of inflammatory bowel disease (IBD) on the density of nitrergic nerve fibers in the mucosal layer of different sections of the gastrointestinal tract of dogs. Twenty-eight German shepherd hybrid dogs of both sexes, weighing from 15 to 25 kg and aged 6 to 10 y, were studied. The dogs were divided into 4 groups with 7 animals in each group: healthy animals, as well as dogs suffering from mild, moderate, and severe IBD. Immunoreactivity to neuronal isoform of nitric oxide synthase, which is a marker of nitrergic neurons, in samples of the mucosal layer in the duodenum, jejunum, and descending colon was studied using the single immunofluorescence method and the number of nerve fibers was evaluated in each observation field...
April 2017: Canadian Journal of Veterinary Research, Revue Canadienne de Recherche Vétérinaire
https://www.readbyqxmd.com/read/28392070/respiratory-network-stability-and-modulatory-response-to-substance-p-require-nalcn
#13
Szu-Ying Yeh, Wei-Hsiang Huang, Wei Wang, Christopher S Ward, Eugene S Chao, Zhenyu Wu, Bin Tang, Jianrong Tang, Jenny J Sun, Meike Esther van der Heijden, Paul A Gray, Mingshan Xue, Russell S Ray, Dejian Ren, Huda Y Zoghbi
Respiration is a rhythmic activity as well as one that requires responsiveness to internal and external circumstances; both the rhythm and neuromodulatory responses of breathing are controlled by brainstem neurons in the preBötzinger complex (preBötC) and the retrotrapezoid nucleus (RTN), but the specific ion channels essential to these activities remain to be identified. Because deficiency of sodium leak channel, non-selective (Nalcn) causes lethal apnea in humans and mice, we investigated Nalcn function in these neuronal groups...
April 19, 2017: Neuron
https://www.readbyqxmd.com/read/28387891/evaluation-of-the-postoperative-cognitive-dysfunction-in-elderly-patients-with-general-anesthesia
#14
Y-L Chi, Z-S Li, C-S Lin, Q Wang, Y-K Zhou
OBJECTIVE: The present study is aimed to study the neuron-specific enolase (NSE) and S100b proteins in the evaluation of postoperative cognitive dysfunction in elderly patients with general anesthesia. PATIENTS AND METHODS: A total of 142 aged patients, who were treated with transurethral resection of the prostate (TURP) surgery under general anesthesia with propofol from June 2014 to December 2015, were randomly divided into two groups. The experiment group was given scopolamine butylbromide by intramuscular injection before the operation, while the control group had no preoperative intramuscular injection...
March 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28380213/retinoic-acid-protects-from-experimental-cerebral-infarction-by-upregulating-gap-43-expression
#15
Y Li, X Gao, Q Wang, Y Yang, H Liu, B Zhang, L Li
The aim of this study was to investigate whether exogenous retinoic acid (RA) can upregulate the mRNA and protein expression of growth-associated protein 43 (GAP-43), thereby promoting brain functional recovery in a rat distal middle cerebral artery occlusion (MCAO) model of ischemia. A total of 216 male Sprague Dawley rats weighing 300-320 g were divided into 3 groups: sham-operated group, MCAO+vehicle group and MCAO+RA group. Focal cortical infarction was induced with a distal MCAO model. The expression of GAP-43 mRNA and protein in the ipsilateral perifocal region was assessed using qPCR and immunocytochemistry at 1, 3, 7, 14, 21, and 28 days after distal MCAO...
April 3, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28374506/g-csf-and-cognitive-dysfunction-in-elderly-diabetic-mice-with-cerebral-small-vessel-disease-preventive-intervention-effects-and-underlying-mechanisms
#16
Zhu-Fei Guan, Ying-Hong Tao, Xiao-Ming Zhang, Qi-Lin Guo, Ying-Chao Liu, Yu Zhang, Yan-Mei Wang, Gang Ji, Guo-Feng Wu, Na-Na Wang, Hao Yang, Zhong-Yu Yu, Jing-Chun Guo, Hou-Guang Zhou
AIMS: Although cognitive dysfunction is a common neurological complication in elderly patients with diabetes, the mechanisms underlying this relationship remain unclear, and effective preventive interventions have yet to be developed. Thus, this study investigated the preventive effects and mechanisms of action associated with granulocyte colony-stimulating factor (G-CSF) on cognitive dysfunction in elderly diabetic mice with cerebral small vessel disease. METHODS: This study included 40 male db/db diabetic and wild-type (WT) mice that were categorized into the following four groups at the age of 3 weeks: db/db group (DG), db/db+G-CSF group (DGG), WT group (WG), and WT+G-CSF group (WGG)...
April 4, 2017: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/28370506/feeding-during-the-rest-phase-promotes-circadian-conflict-in-nuclei-that-control-energy-homeostasis-and-sleep-wake-cycle-in-rats
#17
Oscar D Ramirez-Plascencia, Nadia Saderi, Carolina Escobar, Roberto C Salgado-Delgado
Food intake during the rest phase promotes circadian desynchrony, which has been associated with metabolic diseases. However, the link between circadian rhythm and metabolic alterations is not well understood. To investigate this issue, we explored the circadian rhythm of c-Fos immunoreactivity (IR) in rats fed during the day, during the night or with free access to food for 3 weeks. The analysis was focused on the hypothalamic nuclei, which are interconnected and involved in the control of energy homeostasis and/or arousal: lateral hypothalamus (LH), perifornical area, arcuate, ventrolateral pre-optic (VLPO) and tuberomammillary nuclei...
March 28, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28366721/neuroprotective-role-of-ginkgo-biloba-against-cognitive-deficits-associated-with-bisphenol-a-exposure-an-animal-model-study
#18
Manar Mohammed El Tabaa, Samia Salem Sokar, Ehab Sayed Ramdan, Inas Zakria Abd El Salam, Anis Zaid
Our study aimed to elucidate to what extent Ginkgo biloba (Gb) can protect rats from cognitive deficits induced by exposure to Bisphenol A (BPA) at high dose. Therefore, sixty male Wistar rats were randomly divided into four groups of 15 animals in each group: Vehicle group, Gb-control group, BPA-exposed group and Gb pre-treated group. All administrations were given daily by an oral gavage once a day for eight weeks. Cognitive function was assessed using Morris water maze; Y-maze and Novel object recognition tasks...
March 30, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28349731/serum-neuron-specific-enolase-as-an-early-predictor-of-delayed-neuropsychiatric-sequelae-in-patients-with-acute-carbon-monoxide-poisoning
#19
Y S Cha, H Kim, H H Do, H I Kim, O H Kim, K-C Cha, K H Lee, S O Hwang
Delayed onset of neuropsychiatric symptoms after apparent recovery from acute carbon monoxide (CO) poisoning has been described as delayed neuropsychiatric sequelae (DNS). To date, there have been no studies on the utility of serum neuron-specific enolase (NSE), a marker of neuronal cell damage, as a predictive marker of DNS in acute CO poisoning. This retrospective observational study was performed on adult patients with acute CO poisoning consecutively treated over a 9-month period. Serum NSE was measured after emergency department arrival, and patients were divided into two groups...
January 1, 2017: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/28336493/the-central-mechanism-of-risperidone-induced-hyperprolactinemia
#20
Wei-Wei Sun, Lin-Yu Li, Xu-Feng Huang, Yan-Chuan Shi, He-Qin Yang, Zhi-Yuan Song, Shu Lin
Risperidone is known to increase prolactin secretion in treating mental illness patients. This side-effect is thought to be mediated via central signaling pathway. However, the exact pathway involved between risperidone and hyperprolactinemia are still unknown. Therefore, we have treated mice with risperidone and investigated the central mechanisms. The present study showed that in risperidone treated group, the level of the serum prolactin significantly increased, which was consistent with increased positive prolactin staining in pituitary gland...
March 20, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
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