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https://www.readbyqxmd.com/read/28822057/short-term-exposure-to-enriched-environment-in-adult-rats-restores-mk-801-induced-cognitive-deficits-and-gabaergic-interneuron-immunoreactivity-loss
#1
Ane Murueta-Goyena, Naiara Ortuzar, Pascual Gargiulo, José Vicente Lafuente, Harkaitz Bengoetxea
Perinatal injections of N-methyl-D-aspartate (NMDA) receptor antagonist in rodents emulate some cognitive impairments and neurochemical alterations, such as decreased GABAergic (gamma aminobutyric acid) interneuron immunoreactivity, also found in schizophrenia. These features are pervasive, and developing neuroprotective or neurorestorative strategies is of special interest. In this work, we aimed to investigate if a short exposure to enriched environment (EE) in early adulthood (P55-P73) was an effective strategy to improve cognitive dysfunction and to restore interneuron expression in medial prefrontal cortex (mPFC) and hippocampus (HPC)...
August 18, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28807678/metformin-lowers-%C3%AE-synuclein-phosphorylation-and-upregulates-neurotrophic-factor-in-the-mptp-mouse-model-of-parkinson-s-disease
#2
Nikita Katila, Sunil Bhurtel, Sina Shadfar, Sunil Srivastav, Sabita Neupane, Uttam Ojha, Gil-Saeng Jeong, Dong-Young Choi
In spite of the massive research for the identification of neurorestorative or neuroprotective intervention for curing Parkinson's disease (PD), there is still lack of clinically proven neuroprotective agents. Metformin, a common anti-hyperglycemic drug has been known to possess neuroprotective properties. However, specific mechanisms by which metformin protects neurons from 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) neurotoxicity remain to be elucidated. In this study, we assessed the neuroprotective effects of metformin in the subchronic MPTP model of PD, and explored its feasible mechanisms for neuroprotection...
August 11, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28761412/immunomodulators-and-micrornas-as-neurorestorative-therapy-for-ischemic-stroke
#3
REVIEW
Bridget Martinez, Philip V Peplow
Most of all strokes are ischemic due to occlusion of a vessel, and comprise two main types, thrombotic and embolic. Inflammation and immune response play an important role in the outcome of ischemic stroke. Pharmaceutical and cell-based therapies with immunomodulatory properties could be of benefit in treating ischemic stroke. Possible changes in microRNAs brought about by immunomodulatory treatments may be important. The pharmaceutical studies described in this review have identified several differentially regulated miRNAs associated with disregulation of mRNA targets or the upregulation of several neuroprotective genes, thereby highlighting the potential neuroprotective roles of specific miRNAs such as miR-762, -1892, -200a, -145...
June 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28752929/progesterone-mediated-angiogenic-activity-of-endothelial-progenitor-cell-and-angiogenesis-in-traumatic-brain-injury-rats-were-antagonized-by-progesterone-receptor-antagonist
#4
Peng Yu, Shengjie Li, Zhifei Zhang, Xiaolong Wen, Wei Quan, Qilong Tian, Chuang Gao, Wanqiang Su, Jianning Zhang, Rongcai Jiang
OBJECTIVES: Progesterone (P4) has the potential therapeutic effects for traumatic brain injury (TBI) whose recovery depended on the enhanced angiogenesis. Endothelial progenitor cell (EPC) plays an essential role in vascular biology. We previously demonstrated that P4 administration improved circulating EPC level and neurological recovery of rat with TBI. Here, we hypothesized that P4 augmented angiogenic potential of EPC and the angiogenesis-related neurorestoration after TBI through classical progesterone receptor (PR)...
July 28, 2017: Cell Proliferation
https://www.readbyqxmd.com/read/28741407/pericytes-secrete-pro-regenerative-molecules-in-response-to-platelet-derived-growth-factor-bb
#5
Abderahim Gaceb, Ilknur Özen, Thomas Padel, Marco Barbariga, Gesine Paul
Brain pericytes not only maintain the anatomical, biochemical and immune blood-brain barrier, but display features of mesenchymal stem cells (MSCs) in vitro. MSCs have pro-regenerative properties attributed to their secretome. However, whether also brain pericytes possess such pro-regenerative capacities is largely unknown. Here we characterize the secretome and microvesicle (MV) release of human brain pericytes mediated by platelet-derived growth factor-BB (PDGF-BB)/PDGF receptor beta (PDGFRβ) signalling...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28730408/evolution-of-the-hiv-1-transgenic-rat-utility-in-assessing-the-progression-of-hiv-1-associated-neurocognitive-disorders
#6
Kristen A McLaurin, Rosemarie M Booze, Charles F Mactutus
Understanding the progression of HIV-1-associated neurocognitive disorders (HAND) is a critical need as the prevalence of HIV-1 in older individuals (>50 years) is markedly increasing due to the great success of combination antiretroviral therapy (cART). Longitudinal experimental designs, in comparison to cross-sectional studies, provide an opportunity to establish age-related disease progression in HAND. The HIV-1 transgenic (Tg) rat, which has been promoted for investigating the effect of long-term HIV-1 viral protein exposure, was used to examine two interrelated goals...
July 20, 2017: Journal of Neurovirology
https://www.readbyqxmd.com/read/28715867/therapeutic-impact-of-grape-leaves-polyphenols-on-certain-biochemical-and-neurological-markers-in-alcl3-induced-alzheimer-s-disease
#7
Ibrahim H Borai, Magda K Ezz, Maha Z Rizk, Hanan F Aly, Mahmoud El-Sherbiny, Azza A Matloub, Ghadha I Fouad
Alzheimer's disease (AD) is a grave and prevailing neurodegenerative disease, characterized by slow and progressive neurodegeneration in different brain regions. Aluminum (Al) is a potent and widely distributed neurotoxic metal, implicated in the neuropathogenesis of AD. This study aimed to evaluate the possible neurorestorative potential of Vitis vinifera Leaves Polyphenolic (VLP) extract in alleviating aluminum chloride (AlCl3)-induced neurotoxicity in male rats. AlCl3 neurotoxicity induced a significant decrease in brain/serum acetylcholine (ACh) contents and serum dopamine (DA) levels, along with a significant increment of brain/serum acetylcholinesterase (AChE) activities...
September 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28674431/9-cis-retinoic-acid-induces-neurorepair-in-stroke-brain
#8
Seong-Jin Yu, Mikko Airavaara, Kuo-Jen Wu, Brandon K Harvey, H S Liu, Yihong Yang, Alex Zacharek, Jieli Chen, Yun Wang
The purpose of this study was to examine the neurorestorative effect of delayed 9 cis retinoic acid (9cRA) treatment for stroke. Adult male rats received a 90-min right distal middle cerebral artery occlusion (dMCAo). Animals were separated into two groups with similar infarction sizes, based on magnetic resonance imaging on day 2 after dMCAo. 9cRA or vehicle was given via an intranasal route daily starting from day 3. Stroke rats receiving 9cRA post-treatment showed an increase in brain 9cRA levels and greater recovery in motor function...
July 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28648945/phosphodiesterase-5-inhibition-as-a-therapeutic-target-for-ischemic-stroke-a-systematic-review-of-preclinical-studies
#9
Joakim N E Ölmestig, Ida R Marlet, Atticus H Hainsworth, Christina Kruuse
Phosphodiesterase 5 inhibitors (PDE5i), such as sildenafil (Viagra®) are widely used for erectile dysfunction and pulmonary hypertension. Preclinical studies suggest that PDE5i may improve functional outcome following ischemic stroke. In this systematic review we aimed to evaluate the effects of selective PDE5i in animal models of brain ischaemia. A systematic search in Medline, Embase, and The Cochrane Library was performed including studies in English assessing the effects of selective PDE5i. 32 publications were included describing outcome in 3646 animals...
June 22, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28642125/safety-and-efficacy-of-dual-lead-thalamic-deep-brain-stimulation-for-patients-with-treatment-refractory-multiple-sclerosis-tremor-a-single-centre-randomised-single-blind-pilot-trial
#10
Seth F Oliveria, Ramon L Rodriguez, Dawn Bowers, Daniel Kantor, Justin D Hilliard, Erin H Monari, Bonnie M Scott, Michael S Okun, Kelly D Foote
BACKGROUND: Efficacy in previous studies of surgical treatments of refractory multiple sclerosis tremor using lesioning or deep brain stimulation (DBS) has been variable. The aim of this study was to investigate the safety and efficacy of dual-lead thalamic DBS (one targeting the ventralis intermedius-ventralis oralis posterior nucleus border [the VIM lead] and one targeting the ventralis oralis anterior-ventralis oralis posterior border [the VO lead]) for the treatment of multiple sclerosis tremor...
September 2017: Lancet Neurology
https://www.readbyqxmd.com/read/28597396/trpv4-activation-contributes-functional-recovery-from-ischemic-stroke-via-angiogenesis-and-neurogenesis
#11
Chun-Kai Chen, Po-Yuan Hsu, Tzu-Ming Wang, Zhi-Feng Miao, Ruey-Tay Lin, Suh-Hang H Juo
The endothelial transient receptor potential cation channel subfamily V member 4 (TRPV4) plays a crucial role in vascular remodeling; however, TRPV4-mediated angiogenesis after ischemic neuronal death as a neurorestorative strategy has not yet been thoroughly examined. In this study, we first tested whether TRPV4 activation can improve functional recovery in rats subjected to transient brain ischemia. The possible mechanisms for TRPV4 activation-promoted functional recovery were explored. A TRPV4 agonist, 4α-phorbol 12,13-didecanoate (4α-PDD), was intravenously injected via the tail vein at 6 h and 1, 2, 3, 4 days after ischemic stroke...
June 9, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28571715/the-novel-multitarget-iron-chelating-and-propargylamine-drug-m30-affects-app-regulation-and-processing-activities-in-alzheimer-s-disease-models
#12
REVIEW
Tamar Amit, Orit Bar-Am, Danit Mechlovich, Lana Kupershmidt, Moussa B H Youdim, Orly Weinreb
In many of the neurodegenerative diseases, such as Alzheimer's disease (AD) and AD-related disorders, as well as in the regular ageing process, excessive generation of oxidative stress (OS) and accumulation of iron levels and deposition have been observed in specific affected-brain regions and thus, regarded as contributing factors to the pathogenesis of the diseases. In AD, iron promotes amyloid β (Aβ) neurotoxicity by producing free radical damage and OS in brain areas affected by neurodegeneration, presumably by facilitating the aggregation of Aβ...
May 29, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28569261/optogenetic-neuronal-stimulation-of-the-lateral-cerebellar-nucleus-promotes-persistent-functional-recovery-after-stroke
#13
Aatman M Shah, Shunsuke Ishizaka, Michelle Y Cheng, Eric H Wang, Alex R Bautista, Sabrina Levy, Daniel Smerin, Guohua Sun, Gary K Steinberg
Stroke induces network-wide changes in the brain, affecting the excitability in both nearby and remotely connected regions. Brain stimulation is a promising neurorestorative technique that has been shown to improve stroke recovery by altering neuronal activity of the target area. However, it is unclear whether the beneficial effect of stimulation is a result of neuronal or non-neuronal activation, as existing stimulation techniques nonspecifically activate/inhibit all cell types (neurons, glia, endothelial cells, oligodendrocytes) in the stimulated area...
June 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28524074/neurotrauma-the-crosstalk-between-neurotrophins-and-inflammation-in-the-acutely-injured-brain
#14
REVIEW
Lindolfo da Silva Meirelles, Daniel Simon, Andrea Regner
Traumatic brain injury (TBI) is a major cause of morbidity and mortality among young individuals worldwide. Understanding the pathophysiology of neurotrauma is crucial for the development of more effective therapeutic strategies. After the trauma occurs, immediate neurologic damage is produced by the traumatic forces; this primary injury triggers a secondary wave of biochemical cascades together with metabolic and cellular changes, called secondary neural injury. In the scenario of the acutely injured brain, the ongoing secondary injury results in ischemia and edema culminating in an uncontrollable increase in intracranial pressure...
May 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28512358/delayed-epidural-transplantation-of-human-induced-pluripotent-stem-cell-derived-neural-progenitors-enhances-functional-recovery-after-stroke
#15
I-Hui Lee, Shiang-Suo Huang, Ching-Yu Chuang, Ko-Hsun Liao, Li-Hsin Chang, Chia-Chi Chuang, Yu-Shih Su, Hung-Jui Lin, Jui-Yu Hsieh, Shu-Han Su, Oscar Kuang-Sheng Lee, Hung-Chih Kuo
Induced pluripotent stem cell-derived neural progenitor cells (iPSC-NPCs) are a promising source of tailor-made cell therapy for neurological diseases. However, major obstacles to clinical use still exist. To circumvent complications related to intracerebral administration, we implanted human iPSC-NPCs epidurally over the peri-infarct cortex 7 days after permanent middle cerebral artery occlusion in adult rats. Compared to controls, cell-treated rats showed significant improvements in paretic forelimb usage and grip strength from 10 days post-transplantation (dpt) onwards, as well as reductions in lesion volumes, inflammatory infiltration and astrogliosis at 21 dpt...
May 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28469652/neurorestoration-from-medicinal-plants-an-opportunity-to-treat-painful-neuropathies
#16
Lorenzo Di Cesare Mannelli, Carla Ghelardini
No abstract text is available yet for this article.
March 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28423348/a-neurorestorative-approach-to-parkinson-s-disease
#17
EDITORIAL
Giovanni Diana, Maria Teresa Ciotti, Marco Musilli
No abstract text is available yet for this article.
May 23, 2017: Oncotarget
https://www.readbyqxmd.com/read/28420961/the-role-of-astrocytes-in-neuroprotection-after-brain-stroke-potential-in-cell-therapy
#18
REVIEW
Andrea Becerra-Calixto, Gloria P Cardona-Gómez
Astrocytes are commonly involved in negative responses through their hyperreactivity and glial scar formation in excitotoxic and/or mechanical injuries. But, astrocytes are also specialized glial cells of the nervous system that perform multiple homeostatic functions for the survival and maintenance of the neurovascular unit. Astrocytes have neuroprotective, angiogenic, immunomodulatory, neurogenic, and antioxidant properties and modulate synaptic function. This makes them excellent candidates as a source of neuroprotection and neurorestoration in tissues affected by ischemia/reperfusion, when some of their deregulated genes can be controlled...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28419991/effect-of-melatonin-and-resveratrol-against-memory-impairment-and-hippocampal-damage-in-a-rat-model-of-vascular-dementia
#19
Dongfang Shen, Xiaoyan Tian, Wenxu Sang, Rongrong Song
OBJECTIVES: This study was intended to investigate whether treatment with resveratrol and melatonin alone or in combination can exert neurorestorative effects in a rat model of vascular dementia. METHODS: Briefly, male Wistar rats were subjected to permanent bilateral common carotid artery occlusion (BCCAO) by surgery. After 4 weeks, the cognitive deficits were assessed using the Morris water maze and novel object recognition tests. The biochemical parameters of oxidative stress and inflammation were also assessed...
2016: Neuroimmunomodulation
https://www.readbyqxmd.com/read/28373840/promising-effects-of-neurorestorative-diets-on-motor-cognitive-and-gastrointestinal-dysfunction-after-symptom-development-in-a-mouse-model-of-parkinson-s-disease
#20
Paula Perez-Pardo, Esther M de Jong, Laus M Broersen, Nick van Wijk, Amos Attali, Johan Garssen, Aletta D Kraneveld
Parkinson's disease (PD) is characterized by the progressive degeneration of dopaminergic nigrostriatal neurons, with reductions in the function and amount of dopaminergic synapses. Therefore, synapse loss and membrane-related pathology provide relevant targets for interventions in PD. We previously showed the beneficial preventive effects of a dietary intervention containing uridine and DHA, two precursors for membrane synthesis, in the intrastriatal rotenone model for PD. Here, we examined the therapeutic potential of the same dietary intervention on motor, cognitive, and gastrointestinal symptoms...
2017: Frontiers in Aging Neuroscience
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