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Neuroregeneration

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https://www.readbyqxmd.com/read/29039596/the-role-of-the-mir-99b-5p-mtor-signaling-pathway-in-neuroregeneration-in-mice-following-spinal-cord-injury
#1
Fujiang Cao, Tao Liu, Shiwei Sun, Shiqing Feng
The present study aimed to investigate the role of microRNA (miR)‑99b‑5p in spinal cord injury (SCI). Reverse transcription‑quantitative polymerase chain reaction demonstrated that, compared with control mice, the expression levels of miR‑99b‑5p were upregulated in the mouse spinal cord following SCI. Mechanistic target of rapamycin (mTOR) was predicted to be the possible target of miR‑99b‑5p according to TargetScan and microrna databases. Dual‑luciferase reporter assay verified that miR‑99b‑5p was able to target mTOR...
October 17, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29028747/nervous-system-delivery-of-antilysophosphatidic-acid-antibody-by-nasal-application-attenuates-mechanical-allodynia-after-traumatic-brain-injury-in-rats
#2
Andreas Eisenried, Anders C N Meidahl, Michael Klukinov, Alexander Z Tzabazis, Roger A Sabbadini, J David Clark, David C Yeomans
Lysophosphatidic acid (LPA) is a bioactive lipid that impacts neurological outcomes after neurotrauma by inhibiting neuroregeneration, promoting inflammation, and contributing to behavioral deficits. Blocking LPA signaling with a novel anti-LPA monoclonal antibody (mAb) is neuroprotective after traumatic brain injury (TBI) if given to injured animals whose blood-brain barrier (BBB) has been compromised. It is hypothesized that the anti-LPA mAb could improve chronic pain initiated by TBI. However, poor brain penetration after systemic application of the antibody makes access to the central nervous system (CNS) problematic in situations where the BBB is intact...
November 2017: Pain
https://www.readbyqxmd.com/read/28951720/human-umbilical-cord-blood-cell-transplantation-in-neuroregenerative-strategies
#3
REVIEW
Luisa R Galieva, Yana O Mukhamedshina, Svetlana S Arkhipova, Albert A Rizvanov
At present there is no effective treatment of pathologies associated with the death of neurons and glial cells which take place as a result of physical trauma or ischemic lesions of the nervous system. Thus, researchers have high hopes for a treatment based on the use of stem cells (SC), which are potentially able to replace dead cells and synthesize neurotrophic factors and other molecules that stimulate neuroregeneration. We are often faced with ethical issues when selecting a source of SC. In addition to precluding these, human umbilical cord blood (hUCB) presents a number of advantages when compared with other sources of SC...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28951213/a-novel-function-of-neuroglobin-for-neuroregeneration-in-mice-after-optic-nerve-injury
#4
Kayo Sugitani, Yoshiki Koriyama, Mayuko Sera, Kunizo Arai, Kazuhiro Ogai, Keisuke Wakasugi
Neuroglobin (Ngb) is a recently discovered heme protein in the vertebrate brain that can bind to oxygen molecules. Mammalian Ngb plays a crucial role in neuroprotection under conditions of oxidative stress. To investigate other potential functions of Ngb, we investigated the mouse retinal Ngb system following optic nerve injury. In the retina of control mice, Ngb immunoreactivity was limited to the retinal ganglion cell (RGC) layer, and this immunoreactivity rapidly decreased to less than 50% of the control level 5 days after optic nerve injury...
November 25, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28949952/promoting-neuroregeneration-after-perinatal-arterial-ischemic-stroke-neurotrophic-factors-and-mesenchymal-stem-cells
#5
REVIEW
Nienke Wagenaar, Caroline G M de Theije, Linda S de Vries, Floris Groenendaal, Manon J N L Benders, Cora H A Nijboer
Newborns suffering from perinatal arterial ischemic stroke (PAIS) are at risk of neurodevelopmental problems. Current treatment options for PAIS are limited and mainly focus on supportive care, as presentation of PAIS is beyond the time window of current treatment strategies. Therefore, recent focus has shifted to interventions that stimulate regeneration of damaged brain tissue. From animal models it is known that the brain increases its neurogenic capability after ischemic injury, by promoting neural cell proliferation and differentiation...
September 26, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28937975/umbilical-cord-blood-cells-for-treatment-of-cerebral-palsy-timing-and-treatment-options
#6
REVIEW
Courtney A McDonald, Michael C Fahey, Graham Jenkin, Suzanne L Miller
Cerebral palsy is the most common cause of physical disability in children, and there is no cure. Umbilical cord blood (UCB) cell therapy for the treatment of children with cerebral palsy is currently being assessed in clinical trials. While there is much interest in the use of UCB stem cells for neuroprotection and neuroregeneration, the mechanisms of action are not fully understood. Further, UCB contains many stem and progenitor cells of interest, and we will point out that individual cell types within UCB may elicit specific effects...
September 22, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28899730/a-green-tea-polyphenol-epigallocatechin-3-gallate-enhances-neuroregeneration-after-spinal-cord-injury-by-altering-levels-of-inflammatory-cytokines
#7
Lucia Machova Urdzikova, Jiri Ruzicka, Kristyna Karova, Anna Kloudova, Barbora Svobodova, Anubhav Amin, Jana Dubisova, Meic Schmidt, Sarka Kubinova, Meena Jhanwar-Uniyal, Pavla Jendelova
Spinal cord injury (SCI) is a debilitating condition which is characterized by an extended secondary injury due to the presence of inflammatory local milieu. Epigallocatechin gallate (EGCG) appears to possess strong neuroprotective properties. Here, we evaluated the beneficial effect of EGCG on recovery from SCI. Male Wistar rats were given either EGCG or saline directly to the injured spinal cord and thereafter a daily IP injection. Behavior recovery was monitored by BBB, plantar, rotarod and flat-beam tests...
September 9, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28879677/transcriptomic-analysis-of-gingival-mesenchymal-stem-cells-cultured-on-3d-bioprinted-scaffold-a-promising-strategy-for-neuroregeneration
#8
Agnese Gugliandolo, Francesca Diomede, Paolo Cardelli, Alessia Bramanti, Domenico Scionti, Placido Bramanti, Oriana Trubiani, Emanuela Mazzon
The combined approach of Mesenchymal stem cells (MSCs) and scaffolds has been proposed as a potential therapeutic tool for the treatment of neurodegenerative diseases. Indeed, even if MSCs can promote neuronal regeneration, replacing lost neurons or secreting neurotrophic factors, many limitations still exist for their application in regenerative medicine, including the low survival and differentiation rate. The scaffolds, by mimicking the endogenous microenvironment, have shown to promote cell survival, proliferation and differentiation...
September 6, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28852386/neuroregeneration-using-in-vivo-cellular-reprogramming
#9
Tu Nguyen, Raymond Ching-Bong Wong
No abstract text is available yet for this article.
July 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28836485/the-vascularization-pattern-of-acellular-nerve-allografts-after-nerve-repair-in-sprague-dawley-rats
#10
Zhaowei Zhu, Yanyan Huang, Xiaoyan Zou, Canbin Zheng, Jianghui Liu, Longhai Qiu, Bo He, Qingtang Zhu, Xiaolin Liu
OBJECTIVE: We have demonstrated that angiogenesis in acellular nerve allografts (ANAs) can promote neuroregeneration. The present study aimed to investigate the microvascular regeneration pattern of ANAs in Sprague-Dawley (SD) rats. METHODS: Sixty male SD rats were randomly divided into an autologous group and a rat acellular nerve allograft group (rANA), and 10-mm sciatic nerve defects were induced in these rats. On the 7th, 14th and 21st days after surgery, systemic perfusion with Evans Blue (EB) or lead oxide was performed on the rats through carotid intubation...
August 24, 2017: Neurological Research
https://www.readbyqxmd.com/read/28814236/neuroglial-cell-cryopreservation-in-appropriate-inductive-conditions
#11
Rosa M Gomez, Maria Andrea Dominguez-Sanchez, Magdy M Sanchez, George E Barreto
An ability to store cells (if they cannot be used fresh) reduces cell wastage, thereby increasing the supply of transplantable material. Cell storage is also valuable in scientific research, allowing material to be archived and experiments to be repeated from the same tissue source and facilitating research collaboration by allowing stored samples to be distributed. Cryopreservation is currently considered the most promising and successful, long-term biological conservation method. Its use has led to optimizing survival, improving protocols and stem cell and neuroglia viability, thereby assuring its future use in neuroregeneration and restoration regarding cell therapy...
August 16, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28800076/human-dental-pulp-cells-differentiate-toward-neuronal-cells-and-promote-neuroregeneration-in-adult-organotypic-hippocampal-slices-in-vitro
#12
Li Xiao, Ryoji Ide, Chikako Saiki, Yasuo Kumazawa, Hisashi Okamura
The adult mammalian central nerve system has fundamental difficulties regarding effective neuroregeneration. The aim of this study is to investigate whether human dental pulp cells (DPCs) can promote neuroregeneration by (i) being differentiated toward neuronal cells and/or (ii) stimulating local neurogenesis in the adult hippocampus. Using immunostaining, we demonstrated that adult human dental pulp contains multipotent DPCs, including STRO-1, CD146 and P75-positive stem cells. DPC-formed spheroids were able to differentiate into neuronal, vascular, osteogenic and cartilaginous lineages under osteogenic induction...
August 11, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28777065/possible-role-of-antioxidative-capacity-of-epigallocatechin-3-gallate-treatment-in-morphological-and-neurobehavioral-recovery-after-sciatic-nerve-crush-injury
#13
Waleed M Renno, Ludmil Benov, Khalid M Khan
OBJECTIVE This study examined the capacity of the major polyphenolic green tea extract (-)-epigallocatechin-3-gallate (EGCG) to suppress oxidative stress and stimulate the recovery and prompt the regeneration of sciatic nerve after crush injury. METHODS Adult male Wistar rats were randomly assigned to one of 4 groups: 1) Naïve, 2) Sham (sham injury, surgical control group), 3) Crush (sciatic nerve crush injury treated with saline), and 4) Crush+EGCG (sciatic nerve crush injury treated with intraperitoneally administered EGCG, 50 mg/kg)...
August 4, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28741407/pericytes-secrete-pro-regenerative-molecules-in-response-to-platelet-derived-growth-factor-bb
#14
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/28738379/neurodegeneration-neuroregeneration-and-neuroprotection-in-psychiatric-disorders
#15
Siu W Tang, Daiga M Helmeste, Brian E Leonard
Prevention of deterioration of brain function over time is important in the long-term management of chronic brain disorders such as dementia, schizophrenia, and mood disorders. Although the possibility of neurogenesis in the adult human brain is attractive, and there are psychiatric drugs proven to be effective inducers of neurogenesis in animals, we have yet to see their utility in clinical practice. The terms neurodegeneration and neuroregeneration are often used in a nonspecific manner. Neuroregeneration may mean neurogenesis, dendritogenesis, spinogenesis, or axonogenesis...
2017: Modern Trends in Pharmacopsychiatry
https://www.readbyqxmd.com/read/28707266/6-ohda-lesioned-adult-zebrafish-as-a-useful-parkinson-s-disease-model-for-dopaminergic-neuroregeneration
#16
Yuganthini Vijayanathan, Fei Tieng Lim, Siong Meng Lim, Chiau Ming Long, Maw Pin Tan, Abu Bakar Abdul Majeed, Kalavathy Ramasamy
Conventional mammalian models of neurodegeneration are often limited by futile axonogenesis with minimal functional recuperation of severed neurons. The emergence of zebrafish, a non-mammalian model with excellent neuroregenerative properties, may address these limitations. This study aimed to establish an adult zebrafish-based, neurotoxin-induced Parkinson's disease (PD) model and subsequently validate the regenerative capability of dopaminergic neurons (DpN). The DpN of adult male zebrafish (Danio rerio) were lesioned by microinjecting 6-hydroxydopamine (6-OHDA) neurotoxin (6...
July 13, 2017: Neurotoxicity Research
https://www.readbyqxmd.com/read/28696292/acute-inflammation-regulates-neuroregeneration-through-the-nf-%C3%AE%C2%BAb-pathway-in-olfactory-epithelium
#17
Mengfei Chen, Randall R Reed, Andrew P Lane
Adult neural stem cells/progenitor cells residing in the basal layer of the olfactory epithelium are capable of reconstituting the neuroepithelium even after severe damage. The molecular events underlying this regenerative capacity remain elusive. Here we show that the repair of neuroepithelium after lesioning is accompanied by an acute, but self-limited, inflammatory process. Attenuation of inflammatory cell recruitment and cytokine production by dexamethasone impairs proliferation of progenitor horizontal basal cells (HBCs) and subsequent neuronal differentiation...
July 25, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28688273/leucine-rich-repeat-kinase-2-lrrk2-inhibitors-based-on-indolinone-scaffold-potential-pro-neurogenic-agents
#18
Irene G Salado, Josefa Zaldivar-Diez, Víctor Sebastián-Pérez, Lingling Li, Larissa Geiger, Silvia González, Nuria E Campillo, Carmen Gil, Aixa V Morales, Daniel I Perez, Ana Martinez
Leucine-rich repeat kinase 2 (LRRK2) is one of the most pursued targets for Parkinson's disease (PD) therapy. Moreover, it has recently described its role in regulating Wnt signaling and thus, it may be involved in adult neurogenesis. This new hypothesis could give rise to double disease-modifying agents firstly by the benefits of inhibiting LRRK2 and secondly by promoting adult neurogenesis. Herein we report, the design, synthesis, biological evaluation, SAR and potential binding mode of indoline-like LRRK2 inhibitors and their preliminary neurogenic effect in neural precursor cells isolated from adult mice ventricular-subventricular zone...
September 29, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28632448/neuroregeneration-versus-neurodegeneration-toward-a-paradigm-shift-in-alzheimer-s-disease-drug-discovery
#19
REVIEW
Elisa Uliassi, Annachiara Gandini, Rosaria Carmela Perone, Maria Laura Bolognesi
Alzheimer's disease represents an enormous global burden in terms of human suffering and economic cost. To tackle the current lack of effective drugs and the continuous clinical trial failures might require a shift from the prevailing paradigm targeting pathogenesis to the one targeting neural stem cells (NSCs) regeneration. In this context, small molecules have come to the forefront for their potential to manipulate NSCs, provide therapeutic tools and unveil NSCs biology. Classically, these molecules have been generated either by target-based or phenotypic approaches...
June 2017: Future Medicinal Chemistry
https://www.readbyqxmd.com/read/28629517/erythropoietin-mediated-neuroprotection-in-insects-suggests-a-prevertebrate-evolution-of-erythropoietin-like-signaling
#20
Ralf Heinrich, Verena Günther, Natasa Miljus
The cytokine erythropoietin (Epo) mediates protective and regenerative functions in mammalian nervous systems via activation of poorly characterized receptors that differ from the "classical" homodimeric Epo receptor expressed on erythroid progenitor cells. Epo genes have been identified in vertebrate species ranging from human to fish, suggesting that Epo signaling evolved earlier than the vertebrate lineage. Studies on insects (Locusta migratoria, Chorthippus biguttulus, Tribolium castaneum) revealed Epo-mediated neuroprotection and neuroregeneration...
2017: Vitamins and Hormones
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