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https://www.readbyqxmd.com/read/28728173/glucocorticoid-induced-leucine-zipper-protects-the-retina-from-light-induced-retinal-degeneration-by-inducing-bcl-xl-in-rats
#1
Ruiping Gu, Wenyi Tang, Boya Lei, Xinyi Ding, Cheng Jiang, Gezhi Xu
Purpose: The aim of the present study was to investigate the neuroprotective effects of glucocorticoid-induced leucine zipper (GILZ) in a light-induced retinal degeneration model and to explore the underlying mechanisms. Methods: Intravitreal injection of recombinant GILZ-overexpressing lentivirus (OE-GILZ-rLV) and short hairpin RNA targeting GILZ recombinant lentivirus (shRNA-GILZ-rLV) was performed to up- and downregulate retinal GILZ, respectively. Three days after stable transduction, rats were exposed to continuous bright light (5000 lux) for 2 days...
July 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28728000/tailor-made-purified-human-platelet-lysate-concentrated-in-neurotrophins-for-treatment-of-parkinson-s-disease
#2
Ming-Li Chou, Joe-Wei Wu, Flore Gouel, Aurélie Jonneaux, Kelly Tillerman, Ting-Yi Renn, Charlotte Laloux, Hung-Ming Chang, Liang-Tzung Lin, Jean-Christophe Devedjian, David Devos, Thierry Burnouf
Human platelet lysates (PLs), which contain multiple neurotrophins, have been proposed for treating neurodegenerative disorders, including Parkinson's disease (PD). However, current PLs suspended in plasma have high protein content and contain fibrinogen/fibrin and, following activation, also proteolytic and thrombogenic enzymes. Upon brain administration, such PLs may saturate the cerebrospinal fluid and exert neurotoxicity. We assessed whether purified PLs, concentrated in neurotrophins, protected dopaminergic neurons in PD models...
July 12, 2017: Biomaterials
https://www.readbyqxmd.com/read/28726788/neuroprotection-by-eif2%C3%AE-chop-inhibition-and-xbp-1-activation-in-eae-optic-neuritiss
#3
Haoliang Huang, Linqing Miao, Feisi Liang, Xiaodong Liu, Lin Xu, Xiuyin Teng, Qizhao Wang, William H Ridder, Kenneth S Shindler, Yang Sun, Yang Hu
No therapies exist to prevent neuronal deficits in multiple sclerosis (MS), because the molecular mechanism responsible for the progressive neurodegeneration is unknown. We previously showed that axon injury-induced neuronal endoplasmic reticulum (ER) stress plays an important role in retinal ganglion cell (RGC) death and optic nerve degeneration in traumatic and glaucomatous optic neuropathies. Optic neuritis, one of the most common clinical manifestations of MS, is readily modeled by experimental autoimmune encephalomyelitis (EAE) in mouse...
July 20, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28726776/autophagosome-maturation-mediated-by-rab7-contributes-to-neuroprotection-of-hypoxic-preconditioning-against-global-cerebral-ischemia-in-rats
#4
Lixuan Zhan, Siyuan Chen, Kongping Li, Donghai Liang, Xinyong Zhu, Liu Liu, Zhiwei Lu, Weiwen Sun, En Xu
Autophagy disruption leads to neuronal damage in hypoxic-ischemic brain injury. Rab7, a member of the Rab GTPase superfamily, has a unique role in the regulation of autophagy. Hypoxic preconditioning (HPC) provides neuroprotection against transient global cerebral ischemia (tGCI). However, the underlying mechanisms remain poorly understood. Thus, the current study explored the potential molecular mechanism of the neuroprotective effect of HPC by investigating how Rab7 mediates autophagosome (AP) maturation after tGCI in adult rats...
July 20, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28725658/mesenchymal-stem-cells-overexpressing-interleukin-10-promote-neuroprotection-in-experimental-acute-ischemic-stroke
#5
Masataka Nakajima, Chikako Nito, Kota Sowa, Satoshi Suda, Yasuhiro Nishiyama, Aki Nakamura-Takahashi, Yuko Nitahara-Kasahara, Kiwamu Imagawa, Tohru Hirato, Masayuki Ueda, Kazumi Kimura, Takashi Okada
Interleukin (IL)-10 is a contributing factor to neuroprotection of mesenchymal stem cell (MSC) transplantation after ischemic stroke. Our aim was to increase therapeutic effects by combining MSCs and ex vivo IL-10 gene transfer with an adeno-associated virus (AAV) vector using a rat transient middle cerebral artery occlusion (MCAO) model. Sprague-Dawley rats underwent 90 min MCAO followed by intravenous administration of MSCs alone or IL-10 gene-transferred MSCs (MSC/IL-10) at 0 or 3 hr after ischemia reperfusion...
September 15, 2017: Molecular Therapy. Methods & Clinical Development
https://www.readbyqxmd.com/read/28725631/biological-activities-and-medicinal-properties-of-asafoetida-a-review
#6
REVIEW
Augustine Amalraj, Sreeraj Gopi
Ferula asafoetida Linn. is a main source of asafoetida, a strong, tenacious and sulfurous odor, and oleo-gum resin of medicinal and nutritional importance. Asafoetida has been consumed as a spice and a folk medicine for centuries. Recent studies have shown several promising activities particularly relaxant, neuroprotective, memory enhancing, digestive enzyme, antioxidant, antispasmodic, hypotensive, hepatoprotective, antimicrobial, anticarcinogenic, anticancer, anticytotoxicity, antiobesity, anthelmintic and antagonistic effect...
July 2017: Journal of Traditional and Complementary Medicine
https://www.readbyqxmd.com/read/28724904/hypertonic-saline-infusion-suppresses-apoptosis-of-hippocampal-cells-in-a-rat-model-of-cardiopulmonary-resuscitation
#7
Xiang Zhou, Yong Liu, Yang Huang, ShuiBo Zhu, Jian Zhu, RongPing Wang
Hypertonic saline (HS) attenuates cerebral edema, improves microcirculation perfusion and alleviates inflammation. However, whether the beneficial effect of HS on neurological function after cardiopulmonary resuscitation (CPR) in rat model of asphyxial cardiac arrest (CA) is mediated via attenuating apoptosis of neurons is not known. We studied the neuroprotective effect of HS in rats after CA and CPR, and explored the likely underlying mechanisms. Animals were randomly assigned to 4 equal groups (n = 15 each) according to the different infusions administered during resuscitation: control (C), normal saline (NS), hypertonic saline (HS), and hydroxyethyl starch (HES) groups...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28724203/huprine-x-attenuates-the-neurotoxicity-induced-by-kainic-acid-especially-brain-inflammation
#8
J Relat, B Pérez, P Camps, D Muñoz-Torrero, A Badia, M V Clos
Huprine X (HX) is a synthetic anticholinesterasic compound that exerts a potent inhibitory action on acetylcholinesterase (AChE) activity, an agonist effect on cholinergic receptors, neuroprotective activity in different neurotoxicity models in vivo and in vitro and cognition enhancing effects in non-transgenic (C57BL/6) and transgenic (3xTg-AD, APPswe) mice. In the present study, we assessed the ability of HX (0.8 mg/kg, 21 days) to prevent the damage induced by kainic acid (KA; 28 mg/kg) regarding apoptosis, glia reactivity and neurogenesis in mouse brain...
July 19, 2017: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28724200/effect-of-memantine-on-serum-levels-of-neuron-specific-enolase-and-on-the-glasgow-coma-scale-in-patients-with-moderate-traumatic-brain-injury
#9
Majid Mokhtari, Hossein Nayeb-Aghaei, Mehran Kouchek, Mir Mohammad Miri, Reza Goharani, Arash Amoozandeh, Sina Akhavan Salamat, Mohammad Sistanizad
Traumatic brain injury (TBI) is a major cause of disability and death globally. Despite significant progress in neuromonitoring and neuroprotection, pharmacological interventions have failed to generate favorable results. We examined the effect of memantine on serum levels of neuron-specific enolase (NSE), a marker of neuronal damage, and the Glasgow Coma Scale (GCS) in patients with moderate TBI. Patients were randomly assigned to the control group (who received standard TBI management) and the treatment group (who, alongside their standard management, received enteral memantine 30 mg twice daily for 7 days)...
July 19, 2017: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28724170/circulating-insulin-like-growth-factor-1-and-insulin-like-growth-factor-binding-protein-3-predict-three-months-outcome-after-ischemic-stroke
#10
Moritz Armbrust, Hans Worthmann, Reinhard Dengler, Helmut Schumacher, Ralf Lichtinghagen, Christoph Cyrill Eschenfelder, Matthias Endres, Martin Ebinger
Reports on neuroprotective effects of Insulin-like growth factor-1 (IGF-1) and Insulin-like growth factor binding protein-3 (IGFBP-3) in ischemic brain tissue are inconsistent. The aim of this study was to determine if plasma levels of IGF-1 and IGFBP-3 in acute stroke patients are indicative of 3 months functional outcome. Plasma levels were measured via chemiluminescence immunoassay in heparin blood samples of patients included in the EARLY trial (NCT00562588). Plasma samples were drawn on admission and 8 days post-stroke...
July 2017: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/28723922/temporal-progression-of-parp-activity-in-the-prph2-mutant-rd2-mouse-neuroprotective-effects-of-the-parp-inhibitor-pj34
#11
Ayse Sahaboglu, Alaa Sharif, Lili Feng, Enver Secer, Eberhart Zrenner, François Paquet-Durand
Peripherin (peripherin/rds) is a membrane-associated protein that plays a critical role in the morphogenesis of rod and cone photoreceptor outer segments. Mutations in the corresponding PRPH2 gene cause different types of retinal dystrophies characterized by a loss of photoreceptors. Over activation of poly-ADP-ribose polymerase (PARP) was previously shown to be involved in different animal models for hereditary retinal dystrophies. This includes the rd2 mouse, which suffers from a human homologous mutation in the PRPH2 gene...
2017: PloS One
https://www.readbyqxmd.com/read/28723885/term-versus-preterm-cord-blood-cells-for-the-prevention-of-preterm-brain-injury
#12
Jingang Li, Tamara Yawno, Amy Sutherland, Jan Loose, Ilias Nitsos, Beth J Allison, Robert Bischof, Courtney A McDonald, Graham Jenkin, Suzanne L Miller
BACKGROUND: White matter brain injury in preterm infants can induce neurodevelopmental deficits. Umbilical cord blood (UCB) cells demonstrate neuroprotective properties, but it is unknown whether cells obtained from preterm versus term cord blood have similar efficacy. This study compared the ability of term cord blood (TCB) versus preterm cord blood (PCB) cells to reduce white matter injury in preterm fetal sheep. METHODS: Hypoxia-ischemia (HI) was induced in fetal sheep (0...
July 19, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28723268/assay-of-calcium-transients-and-synapses-in-rat-hippocampal-neurons-by-kinetic-image-cytometry-and-high-content-analysis-an-in-vitro-model-system-for-postchemotherapy-cognitive-impairment
#13
Patrick M McDonough, Natalie L Prigozhina, Ranor C B Basa, Jeffrey H Price
Postchemotherapy cognitive impairment (PCCI) is commonly exhibited by cancer patients treated with a variety of chemotherapeutic agents, including the endocrine disruptor tamoxifen (TAM). The etiology of PCCI is poorly understood. Our goal was to develop high-throughput assay methods to test the effects of chemicals on neuronal function applicable to PCCI. Rat hippocampal neurons (RHNs) were plated in 96- or 384-well dishes and exposed to test compounds (forskolin [FSK], 17β-estradiol [ES]), TAM or fulvestrant [FUL], aka ICI 182,780) for 6-14 days...
July 2017: Assay and Drug Development Technologies
https://www.readbyqxmd.com/read/28722750/protein-kinase-d-exerts-neuroprotective-functions-during-oxidative-stress-via-nuclear-factor-kappab-independent-signaling-pathways
#14
Hanna Liliom, Krisztián Tárnok, Zsófia Ábrahám, Bence Rácz, Angelika Hausser, Katalin Schlett
Members of the protein kinase D (PKD) family of serine/threonine kinases are known to exert diverse roles in neuronal stress responses. Here we show the transient activation and nuclear translocation of endogenous PKD upon oxidative stress induced by H2 O2 treatment in primary neuronal cultures. Using pharmacological inhibition we show that PKD activity protects neurons from oxidative stress induced cell death. Although members of the canonical NFκB pathway were phosphorylated upon H2 O2 treatment, it was found that the neuronal response to oxidative stress is not executed through the nuclear translocation and activity of RelA...
July 19, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28722682/activation-of-the-nrf2-are-signaling-pathway-by-probucol-contributes-to-inhibiting-inflammation-and-neuronal-apoptosis-after-spinal-cord-injury
#15
Zipeng Zhou, Chang Liu, Shurui Chen, Haosen Zhao, Kang Zhou, Wei Wang, Yajiang Yuan, Zhuo Li, Yue Guo, Zhaoliang Shen, Xifan Mei
The nuclear erythroid 2-related factor 2 (Nrf2)/antioxidant response element (ARE) signaling pathway plays an essential role in the cellular antioxidant and anti-inflammatory responses. Spinal cord injury (SCI) results in a massive release of inflammatory factors and free radicals, which seriously compromise nerve recovery and axon regeneration. In this study, we examined the efficacy of probucol on anti-inflammatory responses and functional recovery after SCI by activating the Nrf2/ARE signaling pathway. We also investigated the mechanism by which inflammation is inhibited in this process...
July 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28722058/activation-of-nrf2-are-signaling-pathway-attenuates-lanthanum-chloride-induced-injuries-in-primary-rat-astrocytes
#16
Lijin Zhang, Jinghua Yang, Shengwen Wu, Cuihong Jin, Xiaobo Lu, Xiaoyu Hu, Yaling Sun, Xiang Gao, Yuan Cai
Lanthanum (La) exposure can lead to learning and memory disorder in animals; however, the underlying mechanism of La induced neurotoxicity is still unknown. It has been demonstrated that Nrf2 activation by tert-butylhydroquinone (tBHQ) results in neuroprotection against brain injuries. However, little study has been done with respect to its effect on La induced neurotoxicity. Herein, experiments are undertaken to determine if there is a correlation between La damaged astrocytes and the Nrf2/ARE signalling pathway...
July 19, 2017: Metallomics: Integrated Biometal Science
https://www.readbyqxmd.com/read/28721054/neuroprotective-effects-of-curdione-against-focal-cerebral-ischemia-reperfusion-injury-in-rats
#17
Xing-Jie Li, Li Liang, Hong-Xia Shi, Xiao-Ping Sun, Jing Wang, Lian-Sheng Zhang
BACKGROUND: Curdione is one of the most highly concentrated component of the active constituents in E-zhu, which has been reported to possess a variety of activities. However, the pharmacologic neuroprotective activity of curdione has not been evaluated. The present study aimed to investigate the protective effect of curdione on focal cerebral ischemia reperfusion-induced injury in rats and further exploring the underlying mechanisms. MATERIALS AND METHODS: Adult male Sprague Dawley rats were subjected to middle cerebral artery occlusion (MCAO) surgery for 2 h, followed by reperfusion stage...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28720798/neuroprotective-effect-of-5-aminolevulinic-acid-against-low-inorganic-phosphate-in-neuroblastoma-sh-sy5y-cells
#18
Naoko Takase, Masatoshi Inden, Shin-Ichiro Sekine, Yumi Ishii, Hiroko Yonemitsu, Wakana Iwashita, Hisaka Kurita, Yutaka Taketani, Isao Hozumi
PiT-1 (encoded by SLC20A1) and PiT-2 (encoded by SLC20A2) are type-III sodium-dependent phosphate cotransporters (NaPiTs). Recently, SLC20A2 mutations have been found in patients with idiopathic basal ganglia calcification (IBGC), and were predicted to bring about an inability to transport Pi from the extracellular environment. Here we investigated the effect of low Pi loading on the human neuroblastoma SH-SY5Y and the human glioblastoma A172 cell lines. The results show a different sensitivity to low Pi loading and differential regulation of type-III NaPiTs in these cells...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28720038/neuroprotective-effect-of-g-14-humanin-on-global-cerebral-ischemia-reperfusion-by-activation-of-socs3-stat3-mcl-1-signal-transduction-pathway-in-rats
#19
Guangsheng Gao, Huaihai Fan, Xiaoying Zhang, Fusen Zhang, Haiyan Wu, Feng Qi, Lei Zhao, Yun Li
OBJECTIVE: Humanin (HN) has been identified to suppress neuron death. Gly(14)-HN (HNG), as a variant of HN, can decrease infarct volume after ischemia/reperfusion (I/R) injury. This study aimed to investigate the neuroprotective mechanism of HNG on global cerebral I/R (GI) in rats. METHODS: Rats were randomly divided into 13 groups: Sham group, GI groups and HNG groups. Both GI group and HNG groups included six time points (1, 3, 6, 12, 24, and 72 h). At 24 h after reperfusion, Nissl staining was used to observe positive neurons, and p-STAT3, MCL-1, SOCS3, Bax and Caspase-3 in different groups were detected by immunohistochemistry...
July 18, 2017: Neurological Research
https://www.readbyqxmd.com/read/28717970/prostaglandin-ep2-receptors-mediate-mesenchymal-stromal-cell-neuroprotective-effects-on-dopaminergic-neurons
#20
Juan Andrés Parga, María García-Garrote, Salvador Martínez, Ángel Raya, José Luis Labandeira-García, Jannette Rodríguez-Pallares
Mesenchymal stromal cells (MSCs) have been shown to have useful properties for cell therapy and have been proposed for treatment of neurodegenerative diseases, including Parkinson's disease. However, the mechanisms involved in recovering dopaminergic neurons are not clear. The present study aims to evaluate the pathways and molecules involved in the neuroprotective effect of MSCs. We analyzed the viability of dopaminergic cells from different sources in response to conditioned medium derived from bone marrow MSC (MSC-CM)...
July 17, 2017: Molecular Neurobiology
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