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https://www.readbyqxmd.com/read/28648684/hbk-15-protects-mice-from-stress-induced-behavioral-disturbances-and-changes-in-corticosterone-bdnf-and-ngf-levels
#1
Karolina Pytka, Monika Głuch-Lutwin, Magdalena Kotańska, Elżbieta Żmudzka, Magdalena Jakubczyk, Anna Waszkielewicz, Paulina Janiszewska, Maria Walczak
Unlike majority of current antidepressants, HBK-15-a 5-HT1A and 5-HT7 receptor antagonist - showed memory-enhancing properties. In this study, we aimed to further characterize pharmacological profile of HBK-15 and investigate its antidepressant- and anxiolytic-like activity in the mouse model of unpredictable chronic mild stress. We used sucrose consumption test, forced swim test and elevated plus maze and evaluated the influence on brain-derived neurotrophic factor (BDNF) and nerve growth factor (NGF) levels in the hippocampus and prefrontal cortex, as well as body weight, relative adrenal glands weight and plasma corticosterone level in the stressed mice...
June 22, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28647468/influence-of-rabbit-notochordal-cells-on-symptomatic-intervertebral-disc-degeneration-anti-angiogenic-capacity-on-human-endothelial-cell-proliferation-under-hypoxia
#2
Woo-Keun Kwon, Hong Joo Moon, Taek-Hyun Kwon, Youn-Kwan Park, Joo Han Kim
OBJECTIVES: Symptomatic degenerative disc disease (DDD) is associated with neovascularization and nerve ingrowth into intervertebral discs (IVDs). Notochordal cells (NCs) are key cells that may lead to regeneration of IVDs. However, their activities under conditions of hypoxia, the real environment of IVD, are not well known. We hypothesized that NCs may inhibit neovascularization by interacting with endothelial cells (ECs) under hypoxia. DESIGN: Human IVDs were isolated and cultured to produce nucleus pulposus (NP) cell conditioned medium (NPCM)...
June 21, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28646880/6-shogaol-a-neuroactive-compound-of-ginger-jahe-gajah-induced-neuritogenic-activity-via-ngf-responsive-pathways-in-pc-12-cells
#3
Syntyche Ling Sing Seow, Sok Lai Hong, Guan Serm Lee, Sri Nurestri Abd Malek, Vikineswary Sabaratnam
BACKGROUND: Ginger is a popular spice and food preservative. The rhizomes of the common ginger have been used as traditional medicine to treat various ailments. 6-Shogaol, a pungent compound isolated from the rhizomes of jahe gajah (Zingiber officinale var officinale) has shown numerous pharmacological activities, including neuroprotective and anti-neuroinflammatory activities. The aim of this study was to investigate the potential of 6-shogaol to mimic the neuritogenic activity of nerve growth factor (NGF) in rat pheochromocytoma (PC-12) cells...
June 24, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28643176/a-promising-tool-in-retina-regeneration-current-perspectives-and-challenges-when-using-mesenchymal-progenitor-stem-cells-in-veterinary-and-human-ophthalmological-applications
#4
REVIEW
Anna Cislo-Pakuluk, Krzysztof Marycz
Visual impairment is a common ailment of the current world population, with more exposure to CCD screens and fluorescent lighting, approximately 285 billion people suffer from this deficiency and 13% of those are considered clinically blind. More common causes for visual impairment include age-related macular degeneration (AMD), glaucoma and diabetic retinopathy (Zhu et al. Molecular Medicine Reports, 2015; Kolb et al. 2007; Machalińska et al. Current Eye Research, 34(9),748-760, 2009) among a few. As cases of retinal and optic nerve diseases rise, it is vital to find a treatment, which has led to investigation of the therapeutic potential of various stem cells types (Bull et al...
June 22, 2017: Stem Cell Reviews
https://www.readbyqxmd.com/read/28642614/ultrasound-mediated-piezoelectric-differentiation-of-neuron-like-pc12-cells-on-pvdf-membranes
#5
Marcus Hoop, Xiang-Zhong Chen, Aldo Ferrari, Fajer Mushtaq, Gagik Ghazaryan, Theo Tervoort, Dimos Poulikakos, Bradley Nelson, Salvador Pané
Electrical and/or electromechanical stimulation has been shown to play a significant role in regenerating various functionalities in soft tissues, such as tendons, muscles, and nerves. In this work, we investigate the piezoelectric polymer polyvinylidene fluoride (PVDF) as a potential substrate for wireless neuronal differentiation. Piezoelectric PVDF enables generation of electrical charges on its surface upon acoustic stimulation, inducing neuritogenesis of PC12 cells. We demonstrate that the effect of pure piezoelectric stimulation on neurite generation in PC12 cells is comparable to the ones induced by neuronal growth factor (NGF)...
June 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28642578/human-endothelial-cells-secrete-neurotropic-factors-to-direct-axonal-growth-of-peripheral-nerves
#6
Jonathan M Grasman, David L Kaplan
Understanding how nerves spontaneously innervate tissues or regenerate small injuries is critical to enhance material-based interventions to regenerate large scale, traumatic injuries. During embryogenesis, neural and vascular tissues form interconnected, complex networks as a result of signaling between these tissue types. Here, we report that human endothelial cells (HUVECs) secrete brain-derived neurotrophic factor (BDNF), which significantly stimulated axonal growth from chicken or rat dorsal root ganglia (DRGs)...
June 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28641110/sox11-expression-promotes-regeneration-of-some-retinal-ganglion-cell-types-but-kills-others
#7
Michael W Norsworthy, Fengfeng Bei, Riki Kawaguchi, Qing Wang, Nicholas M Tran, Yi Li, Benedikt Brommer, Yiming Zhang, Chen Wang, Joshua R Sanes, Giovanni Coppola, Zhigang He
At least 30 types of retinal ganglion cells (RGCs) send distinct messages through the optic nerve to the brain. Available strategies of promoting axon regeneration act on only some of these types. Here we tested the hypothesis that overexpressing developmentally important transcription factors in adult RGCs could reprogram them to a "youthful" growth-competent state and promote regeneration of other types. From a screen of transcription factors, we identified Sox11 as one that could induce substantial axon regeneration...
June 21, 2017: Neuron
https://www.readbyqxmd.com/read/28640700/cns-tumors-in-neurofibromatosis
#8
Jian Campian, David H Gutmann
Neurofibromatosis (NF) encompasses a group of distinct genetic disorders in which affected children and adults are prone to the development of benign and malignant tumors of the nervous system. The purpose of this review is to discuss the spectrum of CNS tumors arising in individuals with NF type 1 (NF1) and NF type 2 (NF2), their pathogenic etiologies, and the rational treatment options for people with these neoplasms. This article is a review of preclinical and clinical data focused on the treatment of the most common CNS tumors encountered in children and adults with NF1 and NF2...
June 22, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28637693/neuroblast-differentiation-during-development-and-in-neuroblastoma-requires-kif1b%C3%AE-mediated-transport-of-trka
#9
Stuart M Fell, Shuijie Li, Karin Wallis, Anna Kock, Olga Surova, Vilma Rraklli, Carolin S Höfig, Wenyu Li, Jens Mittag, Marie Arsenian Henriksson, Rajappa S Kenchappa, Johan Holmberg, Per Kogner, Susanne Schlisio
We recently identified pathogenic KIF1Bβ mutations in sympathetic nervous system malignancies that are defective in developmental apoptosis. Here we deleted KIF1Bβ in the mouse sympathetic nervous system and observed impaired sympathetic nervous function and misexpression of genes required for sympathoadrenal lineage differentiation. We discovered that KIF1Bβ is required for nerve growth factor (NGF)-dependent neuronal differentiation through anterograde transport of the NGF receptor TRKA. Moreover, pathogenic KIF1Bβ mutations identified in neuroblastoma impair TRKA transport...
May 15, 2017: Genes & Development
https://www.readbyqxmd.com/read/28637031/association-between-metabolic-syndrome-and-serum-nerve-growth-factor-levels-in-women-with-overactive-bladder
#10
Hediye Dagdeviren, Huseyin Cengiz
OBJECTIVE: This study aimed to determine the association between overactive bladder (OAB), metabolic syndrome (MetS) and serum nerve growth factors (NGF). STUDY DESIGN: Serum samples from a group of 90 women that included patients with OAB (group 1), patients with both OAB and MetS (group 2) and healthy women without OAB and MetS (group 3). Each group included 30 patients. Serum levels of NGF were compared among the groups. RESULTS: When the groups were compared with respect to NGF levels, group 2 was found to have significantly higher NGF levels (p = 0...
June 22, 2017: Gynecologic and Obstetric Investigation
https://www.readbyqxmd.com/read/28636612/laminin-211-inhibits-protein-kinase-a-in-schwann-cells-to-modulate-neuregulin-1-type-iii-driven-myelination
#11
Monica Ghidinelli, Yannick Poitelon, Yoon Kyoung Shin, Dominique Ameroso, Courtney Williamson, Cinzia Ferri, Marta Pellegatta, Kevin Espino, Amit Mogha, Kelly Monk, Paola Podini, Carla Taveggia, Klaus-Armin Nave, Lawrence Wrabetz, Hwan Tae Park, Maria Laura Feltri
Myelin is required for proper nervous system function. Schwann cells in developing nerves depend on extrinsic signals from the axon and from the extracellular matrix to first sort and ensheathe a single axon and then myelinate it. Neuregulin 1 type III (Nrg1III) and laminin α2β1γ1 (Lm211) are the key axonal and matrix signals, respectively, but how their signaling is integrated and if each molecule controls both axonal sorting and myelination is unclear. Here, we use a series of epistasis experiments to show that Lm211 modulates neuregulin signaling to ensure the correct timing and amount of myelination...
June 2017: PLoS Biology
https://www.readbyqxmd.com/read/28633971/manganese-enhanced-magnetic-resonance-imaging-depicts-brain-activity-in-models-of-acute-and-chronic-pain-a-new-window-to-study-experimental-spontaneous-pain
#12
I M Devonshire, J J Burston, L Xu, A Lillywhite, M J Prior, D J G Watson, C M Greenspon, S J Iwabuchi, D P Auer, V Chapman
Application of functional imaging techniques to animal models is vital to understand pain mechanisms, but is often confounded by the need to limit movement artefacts with anaesthesia, and a focus on evoked responses rather than clinically relevant spontaneous pain and related hyperalgesia. The aim of the present study was to investigate the potential of manganese-enhanced magnetic resonance imaging (MEMRI) to measure neural responses during on-going pain that underpins hyperalgesia in pre-clinical models of nociception...
June 17, 2017: NeuroImage
https://www.readbyqxmd.com/read/28633655/inhibition-of-mmp-2-and-mmp-9-decreases-cellular-migration-and-angiogenesis-in-in-vitro-models-of-retinoblastoma
#13
Anderson H Webb, Bradley T Gao, Zachary K Goldsmith, Andrew S Irvine, Nabil Saleh, Ryan P Lee, Justin B Lendermon, Rajini Bheemreddy, Qiuhua Zhang, Rachel C Brennan, Dianna Johnson, Jena J Steinle, Matthew W Wilson, Vanessa M Morales-Tirado
BACKGROUND: Retinoblastoma (Rb) is the most common primary intraocular tumor in children. Local treatment of the intraocular disease is usually effective if diagnosed early; however advanced Rb can metastasize through routes that involve invasion of the choroid, sclera and optic nerve or more broadly via the ocular vasculature. Metastatic Rb patients have very high mortality rates. While current therapy for Rb is directed toward blocking tumor cell division and tumor growth, there are no specific treatments targeted to block Rb metastasis...
June 20, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28632904/ngf-and-fgf-2-promote-reinnervation-by-nerve-muscle-endplate-grafting
#14
Liancai Mu, Stanislaw Sobotka, Jingming Chen, Themba Nyirenda
INTRODUCTION: This study was designed to test whether exogenous application of nerve growth factor (NGF) and basic fibroblast growth factor (FGF-2) to muscles reinnervated with nerve-muscle-endplate band grafting (NMEG) could promote specific outcomes. METHODS: The right sternomastoid muscle in adult rats was experimentally denervated and immediately reinnervated by implanting a NMEG pedicle from the ipsilateral sternohyoid muscle. A fibrin sealant containing NGF and FGF-2 was focally applied to the implantation site...
June 20, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28632177/the-intersection-of-ngf-trka-signaling-and-amyloid-precursor-protein-processing-in-alzheimer-s-disease-neuropathology
#15
REVIEW
Nadia Canu, Giuseppina Amadoro, Viviana Triaca, Valentina Latina, Valentina Sposato, Veronica Corsetti, Cinzia Severini, Maria Teresa Ciotti, Pietro Calissano
Dysfunction of nerve growth factor (NGF) and its high-affinity Tropomyosin receptor kinase A (TrkA) receptor has been suggested to contribute to the selective degeneration of basal forebrain cholinergic neurons (BFCN) associated with the progressive cognitive decline in Alzheimer's disease (AD). The aim of this review is to describe our progress in elucidating the molecular mechanisms underlying the dynamic interplay between NGF/TrkA signaling and amyloid precursor protein (APP) metabolism within the context of AD neuropathology...
June 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28632034/recombinant-human-nerve-growth-factor-treatment-promotes-photoreceptor-survival-in-the-retinas-of-rats-with-retinitis-pigmentosa
#16
Marta Sacchetti, Flavio Mantelli, Maria Luisa Rocco, Alessandra Micera, Laura Brandolini, Laura Focareta, Claudio Pisano, Luigi Aloe, Alessandro Lambiase
PURPOSE: Increasing evidence suggests that nerve growth factor (NGF) exerts protective effects against retinal degeneration in animal models of retinitis pigmentosa (RP). This study aims at investigating the effects of intravitreal injection of recombinant human NGF (rhNGF) on retinal photoreceptors apoptosis in an animal model of RP, the Royal College of Surgeons (RCS) rats. METHODS: Thirty-six RCS rats were treated with intravitreal injection of rhNGF or murine NGF (mNGF) or vehicle at 20 postnatal days (pd) and sacrificed at 40 pd...
March 1, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28630356/developmental-downregulation-of-lis1-expression-limits-axonal-extension-and-allows-axon-pruning
#17
Kanako Kumamoto, Tokuichi Iguchi, Ryuichi Ishida, Takuya Uemura, Makoto Sato, Shinji Hirotsune
The robust axonal growth and regenerative capacities of young neurons decrease substantially with age. This developmental downregulation of axonal growth may facilitate axonal pruning and neural circuit formation but limits functional recovery following nerve damage. While external factors influencing axonal growth have been extensively investigated, relatively little is known about the intrinsic molecular changes underlying the age-dependent reduction in regeneration capacity. We report that developmental downregulation of LIS1 is responsible for the decreased axonal extension capacity of mature dorsal root ganglion (DRG) neurons...
June 19, 2017: Biology Open
https://www.readbyqxmd.com/read/28629826/silencing-of-fkbp51-alleviates-the-mechanical-pain-threshold-inhibits-drg-inflammatory-factors-and-pain-mediators-through-the-nf-kappab-signaling-pathway
#18
Hong-Mei Yu, Qi Wang, Wen-Bo Sun
Neuropathic pain is chronic pain caused by lesions or diseases of the somatosensory system, currently available analgesics provide only temporal relief. The precise role of FK506 binding protein 51 (FKBP51) in neuropathic pain induced by chronic constriction injury (CCI) is not clear. The purpose of the present study was to investigate the effects and possible mechanisms of FKBP51 in neuropathic pain in the rat model of CCI. Our results showed that FKBP51 was obviously upregulated in a time-dependent manner in the dorsal root ganglion (DRG) in CCI rats...
June 16, 2017: Gene
https://www.readbyqxmd.com/read/28629798/proteomic-analysis-of-mesenchymal-to-schwann-cell-transdifferentiation
#19
Anup D Sharma, Jayme Wiederin, Metin Uz, Pawel Ciborowski, Surya K Mallapragada, Howard E Gendelman, Donald S Sakaguchi
While transplantation of Schwann cells facilitates axon regeneration, remyelination and repair after peripheral nerve injury clinical use is limited by cell bioavailability. We posit that such limitation in cell access can be overcome by the use of autologous bone-marrow derived mesenchymal stem cells (MSCs). As MSCs can transdifferentiate to Schwann cell-phenotypes and accelerate nerve regeneration we undertook proteomic evaluation of the cells to uncover the protein contents that affects Schwann cell formulation...
June 16, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28627700/isolation-of-rat-schwann-cells-based-on-cell-sorting
#20
Mi Shen, Wei Tang, Zheng Cao, Xuemin Cao, Fei Ding
The present study presented a protocol that can be used to obtain rapidly a high purity of proliferating rat Schwann cells from freshly dissociated rat peripheral nerves. The sciatic nerves of newborn rats (1‑3 day old) were dissociated, and the Schwann cells (SCs) were purified using fluorescence‑activated cell sorting (FACS) based on the SC membrane‑specific expression of the low‑affinity nerve growth factor receptor, p75NGFR and oligodendrocyte marker 4. Following sorting, the cells were plated on poly‑l‑lysine‑coated dishes in SC culture medium containing DMEM with 10% FBS, 1% penicillin/streptomycin, 2 µM forskolin and 10 ng/ml HRG...
June 14, 2017: Molecular Medicine Reports
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