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Brain Derived Growth Factor

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https://www.readbyqxmd.com/read/29454023/interaction-between-hypothermia-and-delayed-mesenchymal-stem-cell-therapy-in-neonatal-hypoxic-ischemic-brain-injury
#1
Josephine Herz, Christian Köster, Barbara S Reinboth, Mark Dzietko, Wiebke Hansen, Hemmen Sabir, Cindy van Velthoven, Ivo Bendix, Ursula Felderhoff-Müser
Acute hypothermia treatment (HT) is the only clinically established intervention following neonatal hypoxic-ischemic brain injury. However, almost half of all cooled infants still die or suffer from long-lasting neurological impairments. Regenerative therapies, such as mesenchymal stem cells (MSC) appear promising as adjuvant therapy. In the present study, we hypothesized that HT combined with delayed MSC therapy results in augmented protection, improving long-term neurological outcome. Postnatal day 9 (P9) C57BL/6 mice were exposed to hypoxia-ischemia followed by 4 hours HT...
February 14, 2018: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/29451219/low-frequency-pulsed-electromagnetic-field-pretreated-bone-marrow-derived-mesenchymal-stem-cells-promote-the-regeneration-of-crush-injured-rat-mental-nerve
#2
NaRi Seo, Sung-Ho Lee, Kyung Won Ju, JaeMan Woo, BongJu Kim, SoungMin Kim, Jeong Won Jahng, Jong-Ho Lee
Bone marrow-derived mesenchymal stem cells (BMSCs) have been shown to promote the regeneration of injured peripheral nerves. Pulsed electromagnetic field (PEMF) reportedly promotes the proliferation and neuronal differentiation of BMSCs. Low-frequency PEMF can induce the neuronal differentiation of BMSCs in the absence of nerve growth factors. This study was designed to investigate the effects of low-frequency PEMF pretreatment on the proliferation and function of BMSCs and the effects of low-frequency PEMF pre-treated BMSCs on the regeneration of injured peripheral nerve using in vitro and in vivo experiments...
January 2018: Neural Regeneration Research
https://www.readbyqxmd.com/read/29445035/comparative-dynamics-of-microglial-and-glioma-cell-motility-at-the-infiltrative-margin-of-brain-tumours
#3
Joseph Juliano, Orlando Gil, Andrea Hawkins-Daarud, Sonal Noticewala, Russell C Rockne, Jill Gallaher, Susan Christine Massey, Peter A Sims, Alexander R A Anderson, Kristin R Swanson, Peter Canoll
Microglia are a major cellular component of gliomas, and abundant in the centre of the tumour and at the infiltrative margins. While glioma is a notoriously infiltrative disease, the dynamics of microglia and glioma migratory patterns have not been well characterized. To investigate the migratory behaviour of microglia and glioma cells at the infiltrative edge, we performed two-colour time-lapse fluorescence microscopy of brain slices generated from a platelet-derived growth factor-B (PDGFB)-driven rat model of glioma, in which glioma cells and microglia were each labelled with one of two different fluorescent markers...
February 2018: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/29440379/targeting-the-cmet-pathway-augments-radiation-response-without-adverse-effect-on-hearing-in-nf2-schwannoma-models
#4
Yingchao Zhao, Pinan Liu, Na Zhang, Jie Chen, Lukas D Landegger, Limeng Wu, Fu Zhao, Yanxia Zhao, Yanling Zhang, Jing Zhang, Takeshi Fujita, Anat Stemmer-Rachamimov, Gino B Ferraro, Hao Liu, Alona Muzikansky, Scott R Plotkin, Konstantina M Stankovic, Rakesh K Jain, Lei Xu
Neurofibromatosis type II (NF2) is a disease that needs new solutions. Vestibular schwannoma (VS) growth causes progressive hearing loss, and the standard treatment, including surgery and radiotherapy, can further damage the nerve. There is an urgent need to identify an adjunct therapy that, by enhancing the efficacy of radiation, can help lower the radiation dose and preserve hearing. The mechanisms underlying deafness in NF2 are still unclear. One of the major limitations in studying tumor-induced hearing loss is the lack of mouse models that allow hearing testing...
February 9, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29438781/neurobiological-links-between-depression-and-ad-the-role-of-tgf-%C3%AE-1-signaling-as-a-new-pharmacological-target
#5
REVIEW
Filippo Caraci, Simona Federica Spampinato, Maria Grazia Morgese, Fabio Tascedda, Maria Grazia Salluzzo, Maria Concetta Giambirtone, Giuseppe Caruso, Antonio Munafò, Sebastiano Alfio Torrisi, Gian Marco Leggio, Luigia Trabace, Ferdinando Nicoletti, Filippo Drago, Maria Angela Sortino, Agata Copani
In the last several years a large number of studies have demonstrated the neurobiological and clinical continuum between depression and Alzheimer's disease (AD). Depression is a risk factor for the development of AD, and the presence of depressive symptoms significantly increases the conversion of Mild Cognitive Impairment (MCI) into AD. Common pathophysiological events have been identified in depression and AD, including neuroinflammation with an aberrant Tumor Necrosis Factor-α (TNF-α) signaling, and an impairment of Brain-Derived Neurotrophic Factor (BDNF) and Transforming-Growth-Factor-β1 (TGF-β1) signaling...
February 10, 2018: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29436662/comparison-of-the-properties-of-neural-stem-cells-of-the-hippocampus-in-the-tree-shrew-and-rat-in%C3%A2-vitro
#6
Yuan-Dong Hu, Qiong Zhao, Xue-Rong Zhang, Liu-Lin Xiong, Zi-Bin Zhang, Piao Zhang, Rong-Ping Zhang, Ting-Hua Wang
Neural stem cells (NSCs) are characterized by the ability of self‑renewal and capacity to proliferate and produce new nervous tissue. NSCs are capable of differentiating to three lineages of neural cells, including neurons, oligodendrocytes and astrocytes. Furthermore, hippocampal NSCs transplantation can improve the neurological deficits associated with expression of cytokines. Therefore, to compare the properties of NSCs of tree shrews and rats in vitro, NSCs from tree shrews (tsNSCs) and rats f(rNSCs) were isolated...
February 12, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29436655/effects-of-dexmedetomidine-post%C3%A2-treatment-on-bdnf-and-vegf-expression-following-cerebral-ischemia-reperfusion-injury-in-rats
#7
Zheng-Chen Li, Ying-Ping Jia, Yuan Wang, Jin-Lian Qi, Xue-Ping Han
Brain‑derived neurotrophic factor (BDNF) and vascular endothelial growth factor (VEGF) serves a significant role in neural protection by activating the phosphatidylinositol 3‑kinase (PI3K)/Akt signaling pathway, which also was associated with the neuroprotective the treatment with dexmedetomidine (DEX). The present study aimed to further explore whether treatment with DEX post‑IR increased the expression level of BDNF and VEGF in the rat brain. A total of 30 healthy, clean male Wistar rats were randomly divided into 3 experimental groups: Control group, ischemia/reperfusion (I/R) group and DEX treatment group...
February 13, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29435762/establishment-of-a-myelinating-co-culture-system-with-a-motor-neuron-like-cell-line-nsc-34-and-an-adult-rat-schwann-cell-line-ifrs1
#8
Shizuka Takaku, Hideji Yako, Naoko Niimi, Tomoyo Akamine, Daiji Kawanami, Kazunori Utsunomiya, Kazunori Sango
Co-culture models of neurons and Schwann cells have been utilized for the study of myelination and demyelination in the peripheral nervous system; in most of the previous studies, however, these cells were obtained by primary culture with embryonic or neonatal animals. A spontaneously immortalized Schwann cell line IFRS1 from long-term cultures of adult Fischer rat peripheral nerves has been shown to retain fundamental ability to myelinate neurites in co-cultures with adult rat dorsal root ganglion neurons and nerve growth factor-primed PC12 cells...
February 12, 2018: Histochemistry and Cell Biology
https://www.readbyqxmd.com/read/29428242/bu-shen-yi-sui-capsule-promotes-remyelination-correlating-with-sema3a-nrp-1-lif-lifr-and-nkx6-2-in-mice-with-experimental-autoimmune-encephalomyelitis
#9
Pei-Yuan Zhao, Yong-Qiang Wang, Xi-Hong Liu, Ying-Jun Zhu, Hui Zhao, Qiu-Xia Zhang, Fang Qi, Jun-Ling Li, Nan Zhang, Yong-Ping Fan, Kang-Ning Li, Yuan-Yuan Zhao, Jian-Feng Lei, Lei Wang
ETHNOPHARMACOLOGICAL RELEVANCE: Bu Shen Yi Sui capsule (BSYSC), based on traditional Chinese formula Liu Wei Di Huang pill, is effective for the treatment of multiple sclerosis (MS) in clinical experience and trials. Our previous studies confirmed that BSYSC had the neuroprotective effect in MS and its animal model, experimental autoimmune encephalomyelitis (EAE); however, its mechanism of action was not clear. Thus, the effect of BSYSC on remyelination and the underlying mechanisms were investigated in the EAE mice...
February 8, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29423002/ndufa4-enhances-neuron-growth-by-triggering-growth-factors-and-inhibiting-neuron-apoptosis-through-bcl-2-and-cytochrome-c-mediated-signaling-pathway
#10
Fang Fu, Yan Li, Ru Li, Ting-Ying Lei, Dan Wang, Xin Yang, Jin Han, Min Pan, Li Zhen, Yan-Mei Ou, Jian Li, Fao-Tao Li, Xiang-Yi Jing, Dong-Zhi Li, Can Liao
Dandy-Walker malformation (DWM) is the most prevalent congenital malformation in cerebellum, however, pathological mechanism of DWM has not been fully clarified. This study aims to investigate effects of NDUFA4 on growth of neurons. LV5-NDUFA4 and LV3-NDUFA4-RNAi lentivirus were constructed and transfected to neurons. Ciclosporin A, together with the two lentivirus were applied to neurons to observe neuron growth, apoptosis, and related protein expression. MTT assay was used to observe neuron growth. Apoptosis was detected by using flow cytometry assay...
2018: American Journal of Translational Research
https://www.readbyqxmd.com/read/29421993/zinc-supplementation-does-not-influence-serum-levels-of-vegf-bdnf-and-ngf-in-diabetic-retinopathy-patients-a-randomized-controlled-clinical-trial
#11
Sorayya Kheirouri, Siamak Naghizadeh, Mohammad Alizadeh
OBJECTIVES: This study was aimed to evaluate the effects of zinc (Zn) supplementation on serum levels of vascular endothelial growth factor (VEGF), brain-derived neurotrophic factor (BDNF), and nerve growth factor (NGF) in patients with diabetic retinopathy (DR). METHODS: In this randomized clinical trial, 50 patients with DR were allocated into the Zn (n = 25) and placebo (n = 25) groups to receive 30 mg Zn gluconate or maltose dextrin per day, respectively, for three months...
February 8, 2018: Nutritional Neuroscience
https://www.readbyqxmd.com/read/29420916/rutin-attenuates-cerebral-ischemia-reperfusion-injury-in-ovariectomized-rats-via-estrogen-receptor-mediated-bdnf-trkb-and-ngf-trka-signaling
#12
Hong Liu, Lili Zhong, Yuwei Zhang, Xuewei Liu, Ji Li
Rutin, a flavonoid glycoside, has been reported to exert neuroprotective effects. Loss of the endogenous estrogen and dysregulation of the estrogen receptor (ER) signaling pathway are associated with the increased risk of stroke in women after menopause. This study was performed to investigate whether rutin could protect against cerebral ischemia by modulating ER pathway. Ovariectomized (OVX) rats were given intraperitoneal injection of vehicle (DMSO), rutin (100 mg/kg) or 17β-estradiol (100 μg/kg) for 5 continuous days...
February 8, 2018: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/29410615/leptin-receptor-expression-in-mouse-intracranial-perivascular-cells
#13
Xuefeng Yuan, Alexandre Caron, Hua Wu, Laurent Gautron
Past studies have suggested that non-neuronal brain cells express the leptin receptor. However, the identity and distribution of these leptin receptor-expressing non-neuronal brain cells remain debated. This study assessed the distribution of the long form of the leptin receptor (LepRb) in non-neuronal brain cells using a reporter mouse model in which LepRb-expressing cells are permanently marked by tdTomato fluorescent protein (LepRb-CretdTomato). Double immunohistochemistry revealed that, in agreement with the literature, the vast majority of tdTomato-tagged cells across the mouse brain were neurons (i...
2018: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/29409855/pdgf-pdgfr-axis-in-the-neural-systems
#14
REVIEW
Susmita Sil, Palsamy Periyasamy, Annadurai Thangaraj, Ernest T Chivero, Shilpa Buch
Platelet-derived growth factors (PDGFs) and their receptors (PDGFRs) are expressed in several cells types including the brain cells such as neuronal progenitors, neurons, astrocytes, and oligodendrocytes. Emerging evidence shows that PDGF-mediated signaling regulates diverse functions in the central nervous system (CNS) such as neurogenesis, cell survival, synaptogenesis, modulation of ligand-gated ion channels, and development of specific types of neurons. Interestingly, PDGF/PDFGR signaling can elicit paradoxical roles in the CNS, depending on the cell type and the activation stimuli and is implicated in the pathogenesis of various neurodegenerative diseases...
January 31, 2018: Molecular Aspects of Medicine
https://www.readbyqxmd.com/read/29408225/partial-trkb-receptor-activation-suppresses-cortical-epileptogenesis-through-actions-on-parvalbumin-interneurons
#15
Feng Gu, Isabel Parada, Tao Yang, Frank M Longo, David A Prince
Post-traumatic epilepsy is one of the most common and difficult to treat forms of acquired epilepsy worldwide. Currently, there is no effective way to prevent post-traumatic epileptogenesis. It is known that abnormalities of interneurons, particularly parvalbumin-containing interneurons, play a critical role in epileptogenesis following traumatic brain injury. Thus, enhancing the function of existing parvalbumin interneurons might provide a logical therapeutic approach to prevention of post-traumatic epilepsy...
February 2, 2018: Neurobiology of Disease
https://www.readbyqxmd.com/read/29402782/sex-differences-in-the-impact-of-bdnf-genotype-on-the-longitudinal-relationship-between-physical-activity-and-cognitive-performance
#16
Amber Watts, Shea J Andrews, Kaarin J Anstey
BACKGROUND: Physical activity may preserve cognitive function in older adults, but benefits vary by sex and genetic factors. OBJECTIVE: We tested the longitudinal association between physical activity and cognitive performance to de termine whether a common genetic polymorphism for brain-derived neurotrophic factor (BDNF Val66Met) moderated this effect. METHODS: In a 12-year longitudinal population-based sample of older adults (n = 2,218), we used growth curve modeling to investigate whether the benefits of physical activity on cognitive preservation differed by BDNF genotype and sex across multiple cognitive domains including processing speed, attention, working memory, and episodic verbal memory...
February 2, 2018: Gerontology
https://www.readbyqxmd.com/read/29402069/treatments-to-promote-neural-repair-after-stroke
#17
REVIEW
Steven C Cramer
Stroke remains a major cause of human disability worldwide. In parallel with advances in acute stroke interventions, new therapies are under development that target restorative processes. Such therapies have a treatment time window measured in days, weeks, or longer and so have the advantage that they may be accessible by a majority of patients. Several categories of restorative therapy have been studied and are reviewed herein, including drugs, growth factors, monoclonal antibodies, activity-related therapies including telerehabilitation, and a host of devices such as those related to brain stimulation or robotics...
January 2018: Journal of Stroke
https://www.readbyqxmd.com/read/29397865/the-role-of-purkinje-cell-derived-vegf-in-cerebellar-astrogliosis-in-niemann-pick-type-c-mice
#18
Min Hee Park, Ju Youn Lee, Min Seock Jeong, Hyung Sup Jang, Shogo Endo, Jae-Sung Bae, Hee Kyung Jin
Niemann-Pick type C disease (NP-C) is a fatal neurodegenerative disorder caused by a deficiency of NPC1 gene function, which leads to severe neuroinflammation such as astrogliosis. While reports demonstrating neuroinflammation are prevalent in NP-C, information about the onset and progression of cerebellar astrogliosis in this disorder is lacking. Using gene targeting, we generated vascular endothelial growth factor (VEGF) conditional null mutant mice. Deletion of VEGF in cerebellar Purkinje neurons (PNs) led to a significant increase of astrogliosis in the brain of NP-C mice in addition to the loss of PNs, suggesting PN-derived VEGF as an important factor in NP-C pathology...
February 5, 2018: BMB Reports
https://www.readbyqxmd.com/read/29395277/shorter-telomere-length-in-cord-blood-associated-with-prenatal-air-pollution-exposure-benefits-of-intervention
#19
Frederica Perera, Chia-Jung Lin, Lirong Qu, Deliang Tang
BACKGROUND: To examine the molecular benefits of the government action to close the local coal burning power plant in Tongliang County, Chongqing Municipality, we compared biologic markers and health outcomes in two successive birth cohorts enrolled before and after the plant was shut down. In this city, polycyclic aromatic hydrocarbons (PAH) were primarily emitted by the coal burning facility. We previously reported that cord blood levels of PAH-DNA adducts (a biomarker of exposure) and various adverse health outcomes were reduced in the second cohort, whereas levels of brain-derived neurotrophic factor/BDNF (a protein involved in neuronal growth) were increased...
January 19, 2018: Environment International
https://www.readbyqxmd.com/read/29392750/nasal-obstruction-during-adolescence-induces-memory-learning-impairments-associated-with-bdnf-trkb-signaling-pathway-hypofunction-and-high-corticosterone-levels
#20
Takuya Ogawa, Hidemasa Okihara, Satoshi Kokai, Yasunori Abe, Uchima Koecklin Karin Harumi, Mio Makiguchi, Chiho Kato, Tadachika Yabushita, Makoto Michikawa, Takashi Ono
The hippocampus is an important brain region involved in memory and learning. Brain-derived neurotrophic factor (BDNF), tyrosine kinase receptor B (TrkB), and phospho-p44/p42 mitogen-activated protein kinase (MAPK) are known to contribute to hippocampal memory/learning. The present study aimed to clarify the effects of nasal obstruction during the growth period on memory/learning in an animal model, using combined behavioral, biochemical, and histological approaches. Male BALB/C mice underwent unilateral nasal obstruction (UNO) by cauterization at 8 days of age and were subjected to Y-maze and passive avoidance tests at 15 weeks of age...
February 2, 2018: Journal of Neuroscience Research
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