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brain-derived neurotrophic factor

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https://www.readbyqxmd.com/read/28650560/uncovering-the-role-of-brain-derived-neurotrophic-factor-bdnf-trkb-signaling-in-head-and-neck-malignancies
#1
REVIEW
Juliana Kern de Moraes, Vivian Petersen Wagner, Felipe Paiva Fonseca, Pablo Agustin Vargas, Caroline Brunetto de Farias, Rafael Roesler, Manoela Domingues Martins
Brain-derived neurotrophic factor (BDNF) is a member of the neurotrophin family of growth factors that was first known as responsible for sustain the growth, function and plasticity of neural cells. BDNF exerts its effects by binding to the tyrosine kinase receptor B (TrkB). The BDNF/TrkB axis has been reported to be overexpressed in several neurogenic and non-neurogenic tumors. Its higher expression was associated with a poor prognosis to patients affected by different human malignancies, tumor growth, invasion and metastasis; epithelial-mesenchymal transition (EMT) and resistance to chemotherapy...
June 26, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/28648684/hbk-15-protects-mice-from-stress-induced-behavioral-disturbances-and-changes-in-corticosterone-bdnf-and-ngf-levels
#2
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/28648555/comparison-of-plasma-pigment-epithelium-derived-factor-pedf-retinol-binding-protein-4-rbp-4-chitinase-3-like-protein-1-ykl-40-and-brain-derived-neurotrophic-factor-bdnf-for-the-identification-of-insulin-resistance
#3
F J K Toloza, M C Pérez-Matos, M L Ricardo-Silgado, M C Morales-Álvarez, J O Mantilla-Rivas, J A Pinzón-Cortés, M Pérez-Mayorga, M L Arévalo-García, G Tolosa-González, C O Mendivil
AIMS: To evaluate and compare the association of four potential insulin resistance (IR) biomarkers (pigment-epithelium-derived factor [PEDF], retinol-binding-protein-4 [RBP-4], chitinase-3-like protein 1 [YKL-40] and brain-derived neurotrophic factor [BDNF]) with objective measures of IR. METHODS: We studied 81 subjects with different metabolic profiles. All participants underwent a 5-point OGTT with calculation of multiple IR indexes. A subgroup of 21 participants additionally underwent a hyperinsulinemic-euglycemic clamp...
June 9, 2017: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/28648456/brain-derived-neurotrophic-factor-in-the-infralimbic-cortex-alleviates-inflammatory-pain
#4
Lupeng Yue, Long-Yu Ma, Shuang Cui, Feng-Yu Liu, Ming Yi, You Wan
In chronic pain, it has been reported that the medial prefrontal cortex (mPFC) takes important regulatory roles, and may change functionally and morphologically in result of chronic pain. Brain-derived neurotrophic factor (BDNF) is well known as a critical modulator of neuronal excitability and synaptic transmission in the central nervous system. The aim of the present study is to investigate the role of BDNF in the infralimbic cortex and the prelimbic cortex of the mPFC in complete Freund's adjuvant (CFA)-induced inflammatory pain...
June 22, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28647666/brain-derived-neurotrophic-factor-levels-and-depression-during-methamphetamine-withdrawal
#5
Wenwei Ren, Xiaoqian Luan, Jie Zhang, Priyanka Gutteea, Yan Cai, Jiyun Zhao, Yingying Gu, Chaowen Wu, Hang Su, Jingyan Tao, Ying Xie, Dezhao Lv, Liang Feng, Jincai He
BACKGROUND: Depression symptoms is highly comorbid with methamphetamine (METH) dependence. Except for the role in the pathophysiology of depression symptoms, brain-derived neurotrophic factor (BDNF) is also involved in the METH dependence. The present study aims to explore whether BDNF plays a role in the development of depression symptoms during METH withdrawal. METHODS: We recruited 179 patients with METH dependence who were followed up for two weeks. Ultimately, 131 (73...
June 14, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28647536/crhr1-exacerbates-the-glial-inflammatory-response-and-alters-bdnf-trkb-pcreb-signaling-in-a-rat-model-of-global-cerebral-ischemia-implications-for-neuroprotection-and-cognitive-recovery
#6
Patricia B de la Tremblaye, Simon M Benoit, Sarah Schock, Hélène Plamondon
This study examined the impact of corticotropin-releasing hormone type 1 receptor (CRHR1) blockade using Antalarmin (ANT) on the expression of markers of neuroplasticity and inflammation, as well as neuroprotection and behavioral recovery following global cerebral ischemia. Male Wistar rats (N=50) were treated with ANT (2μg/2μl; icv) or a vehicle solution prior to a sham or four vessel (4VO) occlusion. Seven days post ischemia, anxiety was assessed in the Elevated Plus Maze and Open Field tests, and fear and spatial learning in a Y-Maze Passive Avoidance Task and the Barnes Maze...
June 21, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28646200/mesenchymal-stem-cells-secretome-induced-axonal-outgrowth-is-mediated-by-bdnf
#7
Luís F Martins, Rui O Costa, Joana R Pedro, Paulo Aguiar, Sofia C Serra, Fabio G Teixeira, Nuno Sousa, António J Salgado, Ramiro D Almeida
Mesenchymal stem cells (MSCs) have been used for cell-based therapies in regenerative medicine, with increasing importance in central and peripheral nervous system repair. However, MSCs grafting present disadvantages, such as, a high number of cells required for transplantation and low survival rate when transplanted into the central nervous system (CNS). In line with this, MSCs secretome which present on its composition a wide range of molecules (neurotrophins, cytokines) and microvesicles, can be a solution to surpass these problems...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28645787/striatal-hypodopamine-phenotypes-found-in-transgenic-mice-that-overexpress-glial-cell-line-derived-neurotrophic-factor
#8
Hidekazu Sotoyama, Yuriko Iwakura, Kanako Oda, Toshikuni Sasaoka, Nobuyuki Takei, Akiyoshi Kakita, Hideki Enomoto, Hiroyuki Nawa
Glial cell line-derived neurotrophic factor (GDNF) positively regulates the development and maintenance of in vitro dopaminergic neurons. However, the in vivo influences of GDNF signals on the brain dopamine system are controversial and not fully defined. To address this question, we analyzed dopaminergic phenotypes of the transgenic mice that overexpress GDNF under the control of the glial Gfap promoter in the brain. Compared with wild-type, the GDNF transgenic mice contained higher levels of GDNF protein and phosphorylated RET receptors in the brain...
June 20, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28645077/increased-blood-bdnf-in-healthy-individuals-with-a-family-history-of-depression
#9
Ulla Knorr, Mia H Greisen Søndergaard, Pernille Koefoed, Anders Jørgensen, Maria Faurholt-Jepsen, Maj Vinberg, Lars Vedel Kessing
The brain-derive neurotrophic factor (BDNF) may play an important role in the course of depression. We aimed to study the associations between peripheral whole blood BDNF levels in healthy individuals with and without a family history of depression. BDNF levels were significantly increased in healthy individuals with (n = 76), compared with healthy individuals without (n = 39) a family history of depression and persisted after adjustment for age and gender differences. Higher BDNF levels were associated with increasing age and seasonality...
June 17, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28645061/the-neurochemical-consequences-of-methamphetamine-self-administration-in-male-and-female-rats
#10
Andrew Johansen, Lisa M McFadden
BACKGROUND: Methamphetamine (METH) is an addictive substance that is used in both males and females. Few preclinical studies have focused on understanding sex-differences in the neurochemical consequences of contingent METH. The purpose of the current study was to investigate potential sex-differences in the neurochemical consequences of METH self-administration. METHODS: Male and female adult rats were given extended access to METH or saline self-administration for 7d...
June 6, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28642578/human-endothelial-cells-secrete-neurotropic-factors-to-direct-axonal-growth-of-peripheral-nerves
#11
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/28642149/activated-mglur5-protects-bv2-cells-against-ogd-r-induced-cytotoxicity-by-modulating-bdnf-trkb-pathway
#12
Xinchun Ye, Lu Yu, Dandan Zuo, Liang Zhang, Jie Zu, Jinxia Hu, Jiao Tang, Lei Bao, Chengcheng Cui, Ruixue Zhang, Guoliang Jin, Kun Zan, Zuohui Zhang, Xinxin Yang, Hongjuan Shi, Zunsheng Zhang, Qihua Xiao, Yonghai Liu, Jie Xiang, Xueling Zhang, Guiyun Cui
Activated Metabotropic glutamate receptors 5(mGluR5) exhibits protective effects against ischemic brain damage, but the underlying mechanisms are not clearly known. Brain-derived neurotrophic factor (BDNF), as a valuable member of neurotrophic factor family, exerts its protection by combining with its high-affinity receptor tyrosine protein kinase B (TrkB). To investigate the role of activated mGluR5 against oxygen-glucose deprivation (OGD)/reoxygenation (R)-mediated cytotoxicity, the cell viability, apoptosis, the release of inflammatory cytokines and accumulation of reactive oxygen species (ROS) were evaluated in BV2 cells (Microglia cell line) with or without OGD/R exposure...
June 19, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28641491/nicotine-and-cigarette-smoke-modulate-nrf2-bdnf-dopaminergic-signal-and-neurobehavioral-disorders-in-adult-rat-cerebral-cortex
#13
Nibedita Naha, D N Gandhi, A K Gautam, J Ravi Prakash
BACKGROUND: Nicotine and cigarette smoking (CS) are associated with addiction behavior, drug-seeking, and abuse. However, the mechanisms that mediate this association especially, the role of brain-derived neurotrophic factor (BDNF), dopamine (DA), and nuclear factor erythroid 2-related factor 2 (Nrf2) signaling in the cerebral cortex, are not fully known. Therefore, we hypothesized that overexpression of BDNF and DA, and suppression of Nrf2 contribute to several pathological and behavioral alterations in adult cerebral cortex...
January 1, 2017: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/28640632/gut-microbiota-nitric-oxide-and-microglia-as-pre-requisites-for-neurodegenerative-disorders
#14
Joyce Ka Yu Tse
Regulating fluctuating endogenous nitric oxide (NO) levels is necessary for proper physiological functions. Aberrant NO pathways are implicated in a number of neurological disorders, including Alzheimer's Disease (AD) and Parkinson's Disease. The mechanism of NO in oxidative and nitrosative stress with pathological consequences involves reactions with reactive oxygen species (e.g. superoxide) to form the highly reactive peroxynitrite, hydrogen peroxide, hypochloride ions and hydroxyl radical. NO levels are typically regulated by endogenous nitric oxide synthases (NOS), and inflammatory iNOS is implicated in the pathogenesis of neurodegenerative diseases, in which elevated NO mediates axonal degeneration and activates cyclooxygenases to provoke neuroinflammation...
June 22, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28640008/brain-derived-neurotrophic-factor-propeptide-inhibits-proliferation-and-induces-apoptosis-in-c6-glioma-cells
#15
Bangkun Yang, Jun Qin, Ying Nie, Yong Li, Qianxue Chen
There are several forms of brain-derived neurotrophic factor (BDNF), the precursor of BDNF, mature BDNF, and BDNF propeptide. They exert different effects through different transmembrane receptor signaling systems. Precursor of BDNF is enzymatically cleaved, either by intracellular or by extracellular proteases, to generate mature BDNF and its propeptide (BDNF propeptide). The aim of this study was to evaluate the potential molecular mechanisms that underlie the inhibition of glioma cell growth by the BDNF propeptide...
June 21, 2017: Neuroreport
https://www.readbyqxmd.com/read/28638713/the-behavioral-and-physiological-effects-of-high-fat-diet-and-alcohol-consumption-sex-differences-in-c57bl6-j-mice
#16
Rachel R Gelineau, Nicole L Arruda, Jasmin A Hicks, Isabella Monteiro De Pina, Aikaterini Hatzidis, Joseph A Seggio
BACKGROUND AND OBJECTIVE: Animal studies can be a great tool to investigate sex differences in a variety of different ways, including behavioral and physiological responses to drug treatments and different "lifestyle variables" such as diets. Consumption of both high-fat diets and alcohol is known to affect anxiety behaviors and overall health. This project investigated how high-fat diet and alcohol access and its combination affected the behavior and physiology of male and female C57BL/6J mice...
June 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28638711/decrease-in-brain-derived-neurotrophic-factor-at-plasma-level-but-not-in-serum-concentrations-in-suicide-behavior-a%C3%A2-systematic-review-and-meta-analysis
#17
Marisol Salas-Magaña, Carlos A Tovilla-Zárate, Thelma B González-Castro, Isela E Juárez-Rojop, María L López-Narváez, José M Rodríguez-Pérez, Julián Ramírez Bello
INTRODUCTION: Suicide is known as a major health concern worldwide. There is evidence for the role of brain-derived neurotrophic factor (BDNF) in suicide behavior. Therefore, this factor has been proposed as a biomarker for suicide behavior. Clinical studies have measured BDNF concentrations at central and peripheral levels. As a consequence, the aim of this study was to assess BDNF levels in blood plasma and serum to see whether there is a difference in concentrations in patients with suicide behavior when compared to those in controls, using a meta-analysis approach...
June 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28637174/effect-of-prenatal-exposure-to-waterpipe-tobacco-smoke-on-learning-and-memory-of-adult-offspring-rats
#18
Nour Al-Sawalha, Karem Alzoubi, Omar Khabour, Weam Alyacoub, Yehya Almahmmod, Thomas Eissenberg
Introduction: Waterpipe tobacco smoking has increased in prevalence worldwide, including among pregnant women. In this study, we investigated the effect of prenatal maternal waterpipe tobacco smoke (WTS) exposure during different stages of pregnancy on learning and memory of adult offspring rats. Methods: Pregnant rats received either fresh air or mainstream WTS (two hours daily) during early, mid, late, or whole gestational period. Male offspring rats were followed through 20 weeks...
June 20, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/28635142/protective-effects-induced-by-microwave-assisted-aqueous-harpagophytum-extract-on-rat-cortex-synaptosomes-challenged-with-amyloid-%C3%AE-peptide
#19
Claudio Ferrante, Lucia Recinella, Marcello Locatelli, Paolo Guglielmi, Daniela Secci, Lidia Leporini, Annalisa Chiavaroli, Sheila Leone, Sara Martinotti, Luigi Brunetti, Michele Vacca, Luigi Menghini, Giustino Orlando
Harpagophytum procumbens is a plant species that displays anti-inflammatory properties in multiple tissues. The iridoid glycosides arpagoside, harpagide, and procumbide appear to be the most therapeutically important constituents. In addition, harpagoside treatment exerted neuroprotective effects both in vitro and in vivo. Considering these findings, the aim of the present work is to explore the possible protective role of the previously described microwave-assisted aqueous extract of H. procumbens on rat hypothalamic (Hypo-E22) cells, and in rat cortex challenged with amyloid β-peptide (1-40)...
June 21, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28634464/anti-inflammatory-and-neuroprotective-effects-of-co-ultrapealut-in-a-mouse-model-of-vascular-dementia
#20
Rosalba Siracusa, Daniela Impellizzeri, Marika Cordaro, Rosalia Crupi, Emanuela Esposito, Stefania Petrosino, Salvatore Cuzzocrea
Vascular dementia (VaD), the second most common cause of cognitive impairment in the population, is a disease that results from reduction in regional cerebral blood flow and involves oxidative stress and inflammation. Co-ultramicronized PEALut (co-ultra PEALut) is a new compound with beneficial effects, which include anti-inflammatory and antioxidant properties. Recently, co-ultraPEALut has been shown to exhibit neuroprotective effects in models of Parkinson's disease, cerebral ischemia and Alzheimer's disease...
2017: Frontiers in Neurology
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