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Bdnf ketamine

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https://www.readbyqxmd.com/read/28600519/alterations-in-the-inflammatory-cytokines-and-brain-derived-neurotrophic-factor-contribute-to-depression-like-phenotype-after-spared-nerve-injury-improvement-by-ketamine
#1
Ze-Min Xie, Xing-Ming Wang, Ning Xu, Jing Wang, Wei Pan, Xiao-Hui Tang, Zhi-Qiang Zhou, Kenji Hashimoto, Jian-Jun Yang
Although pain is frequently accompanied with depression, little is known about the risk factors contributing to individual differences to the comorbidity of pain and depression. In this study, we examined whether cytokines and brain-derived neurotrophic factor (BDNF) might contribute to the individual differences in the development of neuropathic pain-induced depression. Rats were randomly subjected to spared nerved ligation (SNI) or sham surgery. The SNI rats were divided into two groups by the data from depression-related behavioral tests...
June 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28577999/ketamine-induces-brain-derived-neurotrophic-factor-expression-via-phosphorylation-of-histone-deacetylase-5-in-rats
#2
Miyeon Choi, Seung Hoon Lee, Min Hyeop Park, Yong-Seok Kim, Hyeon Son
Ketamine shows promise as a therapeutic agent for the treatment of depression. The increased expression of brain-derived neurotrophic factor (BDNF) has been associated with the antidepressant-like effects of ketamine, but the mechanism of BDNF induction is not well understood. In the current study, we demonstrate that the treatment of rats with ketamine results in the dose-dependent rapid upregulation of Bdnf promoter IV activity and expression of Bdnf exon IV mRNAs in rat hippocampal neurons. Transfection of histone deacetylase 5 (HDAC5) into rat hippocampal neurons similarly induces Bdnf mRNA expression in response to ketamine, whereas transfection of a HDAC5 phosphorylation-defective mutant (Ser259 and Ser498 replaced by Ala259 and Ala498), results in the suppression of ketamine-mediated BDNF promoter IV transcriptional activity...
May 31, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28550529/single-administration-of-hbk-15-a-triple-5-ht1a-5-ht7-and-5-ht3-receptor-antagonist-reverses-depressive-like-behaviors-in-mouse-model-of-depression-induced-by-corticosterone
#3
Karolina Pytka, Monika Głuch-Lutwin, Magdalena Kotańska, Anna Waszkielewicz, Agnieszka Kij, Maria Walczak
Studies suggest that the blockade of 5-HT1A, 5-HT7, and 5-HT3 receptor may increase the speed of antidepressant response. 1-[(2,6-Dimethylphenoxy)ethoxyethyl]-4-(2-methoxyphenyl)piperazine hydrochloride (HBK-14) and 1-[(2-chloro-6-methylphenoxy)ethoxyethyl]-4-(2-methoxyphenyl)piperazine hydrochloride (HBK-15), dual 5-HT1A and 5-HT7 antagonists, showed significant antidepressant- and anxiolytic-like properties in our previous tests in rodents. In this study, we aimed to investigate their antidepressant potential using mouse model of corticosterone-induced depression...
May 26, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28501494/focused-microwave-irradiation-assisted-immunohistochemistry-to-study-effects-of-ketamine-on-phospho-erk-expression-in-the-mouse-brain
#4
Alda Fernandes, Yu-Wen Li
Ketamine produces rapid and long-lasting antidepressant effects in depressive patients. Preclinical studies demonstrate that ketamine stimulates AMPA receptor transmission and activates BDNF/TrkB-Akt/ERK-mTOR signaling cascades, leading to a sustained increase in synaptic protein synthesis and strengthening of synaptic plasticity, a potential mechanism underlying the antidepressant effects. The purpose of this study was to develop an immunohistochemistry (IHC) assay to map the distribution of extracellular signal-regulated kinase (ERK) phosphorylation in the mouse brain in response to systemic ketamine treatment...
May 10, 2017: Brain Research
https://www.readbyqxmd.com/read/28499898/antidepressant-drugs-for-beta-amyloid-induced-depression-a-new-standpoint
#5
Stefania Schiavone, Paolo Tucci, Emanuela Mhillaj, Maria Bove, Luigia Trabace, Maria Grazia Morgese
Mounting evidence suggests that depression represents a risk factor and an early manifestation of Alzheimer's disease (AD). Neuropsychiatric symptoms may derive from neurobiological changes in specific brain areas and may be considered prodromal of dementia. We have previously reported the depressive-like profile in rats receiving a single intracerebroventricular injection of soluble amyloid beta protein (ßA). Here, we verified the effect of different classes of antidepressants on the ßA-induced depressive behavior and on cortical monoamine levels...
August 1, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28492279/dose-related-effects-of-adjunctive-ketamine-in-taiwanese-patients-with-treatment-resistant-depression
#6
Tung-Ping Su, Mu-Hong Chen, Cheng-Ta Li, Wei-Chen Lin, Chen-Jee Hong, Ralitza Gueorguieva, Pei-Chi Tu, Ya-Mei Bai, Chih-Ming Cheng, John H Krystal
The antidepressant effects of ketamine are thought to depend on BDNF genotype and dose. The purpose of this study was to characterize the dose-related antidepressant effects of ketamine in patients with treatment-resistant depression drawn from a Chinese population predominately possessing lower activity BDNF genotypes (Val/Met, Met/Met). We conducted a double-blind randomized parallel group placebo controlled trial of a single ketamine infusion (saline, 0.2 mg/kg, 0.5 mg/kg). Patients (N=71; BDNF genotype: Val/Val (N=12, 17%), Val/Met (N=40, 56...
May 11, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28479397/locomotor-sensitization-to-intermittent-ketamine-administration-is-associated-with-nucleus-accumbens-plasticity-in-male-and-female-rats
#7
C E Strong, K J Schoepfer, A M Dossat, S K Saland, K N Wright, M Kabbaj
Clinical evidence suggests superior antidepressant response over time with a repeated, intermittent ketamine treatment regimen as compared to a single infusion. However, the club drug ketamine is commonly abused. Therefore, the abuse potential of repeated ketamine injections at low doses needs to be investigated. In this study, we investigated the abuse potential of repeated exposure to either 0, 2.5, or 5 mg/kg ketamine administered once weekly for seven weeks. Locomotor activity and conditioned place preference (CPP) were assayed to evaluate behavioral sensitization to the locomotor activating effects of ketamine and its rewarding properties, respectively...
May 4, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28473755/the-combination-of-long-term-ketamine-and-extinction-training-contributes-to-fear-erasure-by-bdnf-methylation
#8
Ling-Sha Ju, Jiao-Jiao Yang, Lei Lei, Jiang-Yan Xia, Dan Luo, Mu-Huo Ji, Anatoly E Martynyuk, Jian-Jun Yang
A combination of antidepressant drugs and psychotherapy exhibits more promising efficacy in treating fear disorders than either treatment alone, but underlying mechanisms of such treatments remain largely unknown. Here we investigated the role of DNA methylation of the brain-derived neurotrophic factor (Bdnf) gene in the therapeutic effects of ketamine in combination with extinction training in a mouse model of post-traumatic stress disorder (PTSD) induced by inescapable electric foot shocks (IFS). Male mice received ketamine for 22 consecutive days starting 1 h after the IFS (long-term ketamine treatment) or 2 h prior to the extinction training on days 15 and 16 after the IFS (short-term ketamine treatment)...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28454718/effects-of-co-administration-of-ketamine-and-ethanol-on-the-dopamine-system-via-the-cortex-striatum-circuitry
#9
Qing Liu, Tian-Yong Xu, Zhi-Bi Zhang, Chi-Kwan Leung, Ding-Yun You, Shang-Wen Wang, Shuai Yi, Qiang Jing, Run-Fang Xie, Huifang-Jie Li, Xiao-Feng Zeng
AIM: Ketamine and ethanol are increasingly being used together as recreational drugs in rave parties. Their effects on the dopamine (DA) system remain largely unknown. This study aimed to investigate the effects of consuming two different concentrations of ketamine with and without alcohol on the DA system. MATERIALS AND METHODS: We employed the conditioned place preference (CPP) paradigm to evaluate the rewarding effects of the combined administration of two different doses of ketamine (30mg/kg and 60mg/kg) with ethanol (0...
April 25, 2017: Life Sciences
https://www.readbyqxmd.com/read/28452409/ketamine-versus-midazolam-in-bipolar-depression-with-suicidal-thoughts-a-pilot-midazolam-controlled-randomized-clinical-trial
#10
Michael F Grunebaum, Steven P Ellis, John G Keilp, Vivek K Moitra, Thomas B Cooper, Julia E Marver, Ainsley K Burke, Matthew S Milak, M Elizabeth Sublette, Maria A Oquendo, J John Mann
OBJECTIVES: To evaluate feasibility and effects of a sub-anesthetic infusion dose of ketamine versus midazolam on suicidal ideation in bipolar depression. Neurocognitive, blood and saliva biomarkers were explored. METHODS: Sixteen participants with bipolar depression and a Scale for Suicidal Ideation (SSI) score of ≥4 were randomized to ketamine (0.5 mg/kg) or midazolam (0.02 mg/kg). Current pharmacotherapy was maintained excluding benzodiazepines within 24 hours...
May 2017: Bipolar Disorders
https://www.readbyqxmd.com/read/28430606/ketamine-administered-pregnant-rats-impair-learning-and-memory-in-offspring-via-the-creb-pathway
#11
Xinran Li, Cen Guo, Yanan Li, Lina Li, Yuxin Wang, Yiming Zhang, Yue Li, Yu Chen, Wenhan Liu, Li Gao
Ketamine has been reported to impair the capacity for learning and memory. This study examined whether these capacities were also altered in the offspring and investigated the role of the CREB signaling pathway in pregnant rats, subjected to ketamine-induced anesthesia. On the 14th day of gestation (P14), female rats were anesthetized for 3 h via intravenous ketamine injection (200 mg/Kg). Morris water maze task, contextual and cued fear conditioning, and olfactory tasks were executed between the 25th to 30th day after birth (B25-30) on rat pups, and rats were sacrificed on B30...
May 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28251011/-being-with-a-buddha-a-case-report-of-methoxetamine-use-in-a-united-states-veteran-with-ptsd
#12
Joan M Striebel, Emily E Nelson, Raj K Kalapatapu
Methoxetamine (MXE) is a ketamine analogue with a high affinity for the N-methyl-D-aspartate (NMDA) receptor. MXE is a newly emerging designer drug of abuse and is widely available through on-line sources and is not detected by routine urine drug screens. In this report, we describe a United States (US) veteran with posttraumatic stress disorder (PTSD) and heavy polysubstance use, who injected high dose MXE for its calming effect. Given MXE's structural similarities to ketamine and recent work showing that ketamine reduces PTSD symptoms, we hypothesize that MXE alleviated this veteran's PTSD symptoms through action at the NMDA receptor and via influences on brain-derived neurotrophic factor (BDNF)...
2017: Case Reports in Psychiatry
https://www.readbyqxmd.com/read/28241130/nardostachys-jatamansi-targets-bdnf-trkb-to-alleviate-ketamine-induced-schizophrenia-like-symptoms-in-rats
#13
Anjali Janardhanan, Anjana Sadanand, Arambakkam Janardhanam Vanisree
OBJECTIVE: Schizophrenia, a common neurological disorder appearing in the late teens or early adulthood, is characterized by disorganized thinking, behaviour, and perception of emotions. Aberrant N-methyl-D-aspartate (NMDA) receptor-mediated synaptic plasticity is a major pathological event here due to dysfunction of dopamine and glutamate transmission at NMDA receptors. De-regulated brain-derived neurotrophic factor (BDNF), i.e., its signalling through the tropomyosin receptor kinase B (TrkB) receptor, is a major feature of schizophrenia...
2016: Neuropsychobiology
https://www.readbyqxmd.com/read/28236848/the-fibrinolytic-system-a-new-target-for-treatment-of-depression-with-psychedelics
#14
R D Idell, G Florova, A A Komissarov, S Shetty, R B S Girard, S Idell
Current understanding of the neurobiology of depression has grown over the past few years beyond the traditional monoamine theory of depression to include chronic stress, inflammation and disrupted synaptic plasticity. Tissue plasminogen activator (tPA) is a key factor that not only promotes fibrinolysis via the activation of plasminogen, but also contributes to regulation of synaptic plasticity and neurogenesis through plasmin-mediated activation of a probrain derived neurotrophic factor (BDNF) to mature BDNF...
March 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28065587/ffpm-a-pde4-inhibitor-reverses-learning-and-memory-deficits-in-app-ps1-transgenic-mice-via-camp-pka-creb-signaling-and-anti-inflammatory-effects
#15
Haibiao Guo, Yufang Cheng, Canmao Wang, Jingang Wu, Zhengqiang Zou, Bo Niu, Hui Yu, Haitao Wang, Jiangping Xu
Thus far, phosphodiesterase-4 (PDE4) inhibitors have not been approved for application in Alzheimer's disease (AD) in a clinical setting due to severe side effects, such as nausea and vomiting. In this study, we investigated the effect of FFPM, a novel PDE4 inhibitor, on learning and memory abilities, as well as the underlying mechanism in the APP/PS1 mouse model of AD. Pharmacokinetic studies have revealed that FFPM efficiently permeates into the brain, and reached peak values in plasma 2 h after orally dosing...
January 6, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/27914827/inhibition-of-long-non-coding-rna-igf2as-protects-apoptosis-and-neuronal-loss-in-anesthetic-damaged-mouse-neural-stem-cell-derived-neurons
#16
Chengwei Song, Chengjun Song, Kui Chen, Xiangdong Zhang
BACKGROUND: In vitro culture of neural stem cell-derived neurons serves as an excellent model to study anesthetic-induced neurotoxicity. In our study, we examined the functional role of long non-coding RNA, IGF2AS, in regulating ketamine-induced neurotoxicity in murine neural stem cells. METHODS: Murine E18.5 brain-derived neural stem cells were cultured in vitro. During neural differentiation stage, ketamine-induced gene expression changes of IGF2 and IGF2AS were recorded by qRT-PCR...
January 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27765808/rapid-and-sustained-antidepressant-action-of-the-mglu2-3-receptor-antagonist-mgs0039-in-the-social-defeat-stress-model-comparison-with-ketamine
#17
Chao Dong, Ji-Chun Zhang, Wei Yao, Qian Ren, Min Ma, Chun Yang, Shigeyuki Chaki, Kenji Hashimoto
BACKGROUND: Similar to the N-methyl-D-aspartate receptor antagonist ketamine, the metabotropic glutamate 2/3 receptor antagonist, MGS0039, shows antidepressant effects. However, there are no reports comparing these 2 compounds in the social defeat stress model of depression. METHODS: We examined the effects of MGS0039 (1 mg/kg) and ketamine (10 mg/kg) on depression-like behavior in susceptible mice after repeated social defeat stress. Protein levels of brain-derived neurotrophic factor, TrkB, phospho-TrkB, α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor (GluA1), postsynaptic density protein 95, and dendritic spine density in selected brain regions were measured...
October 27, 2016: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27743829/acute-agmatine-administration-similar-to-ketamine-reverses-depressive-like-behavior-induced-by-chronic-unpredictable-stress-in-mice
#18
Vivian B Neis, Luis E B Bettio, Morgana Moretti, Priscila B Rosa, Camille M Ribeiro, Andiara E Freitas, Filipe M Gonçalves, Rodrigo B Leal, Ana Lúcia S Rodrigues
Agmatine is an endogenous neuromodulator that has been shown to have antidepressant-like properties. We have previously demonstrated that it can induce a rapid increase in BDNF levels after acute administration, suggesting that agmatine may be a fast-acting antidepressant. To investigate this hypothesis, the present study evaluated the effects of a single administration of agmatine in mice subjected to chronic unpredictable stress (CUS), a model of depression responsive only to chronic treatment with conventional antidepressants...
November 2016: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/27634096/fast-acting-antidepressants-rapidly-stimulate-erk-signaling-and-bdnf-release-in-primary-neuronal-cultures
#19
Ashley E Lepack, Eunyoung Bang, Boyoung Lee, Jason M Dwyer, Ronald S Duman
Recent preclinical and clinical studies demonstrate that three functionally different compounds, the NMDA receptor channel blocker ketamine, mGlu2/3 receptor antagonist LY341495, and NMDA receptor glycine site agent GLYX-13 produce rapid and long lasting antidepressant effects. Furthermore, these agents are reported to stimulate ERK and mTORC1 signaling in brain. Here we used rat primary cortical culture neurons to further examine the cellular actions of these agents. The results demonstrate that low concentrations of all three compounds rapidly increase levels of the phosphorylated and activated forms of ERK and a downstream target of mTORC1, p70S6 kinase, in a concentration and time dependent manner...
December 2016: Neuropharmacology
https://www.readbyqxmd.com/read/27580401/behavioral-and-biochemical-effects-of-ketamine-and-dextromethorphan-relative-to-its-antidepressant-like-effects-in-swiss-webster-mice
#20
Linda Nguyen, Brandon P Lucke-Wold, Aric F Logsdon, Anna L Scandinaro, Jason D Huber, Rae R Matsumoto
Ketamine has been shown to produce rapid and robust antidepressant effects in depressed individuals; however, its abuse potential and adverse psychotomimetic effects limit its widespread use. Dextromethorphan (DM) may serve as a safer alternative on the basis of pharmacodynamic similarities to ketamine. In this proof-of-concept study, behavioral and biochemical analyses were carried out to evaluate the potential involvement of brain-derived neurotrophic factor (BDNF) in the antidepressant-like effects of DM in mice, with comparisons to ketamine and imipramine...
September 28, 2016: Neuroreport
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