25,826 results match your criteria brain-derived

Short-term running exercise alters DNA methylation patterns in neuronal nitric oxide synthase and brain-derived neurotrophic factor genes in the mouse hippocampus and reduces anxiety-like behaviors.

FASEB J 2021 Aug;35(8):e21767

The Fukuoka University Institute for Physical Activity, Fukuoka University, Fukuoka, Japan.

Running exercise has beneficial effects on brain health. However, the effects of relatively short-term running exercise (STEx) on behavior, and its underlying signaling pathways, are poorly understood. In this study, we evaluated the possibility that the regulation by STEx of brain-derived neurotrophic factor (BDNF) and neuronal nitric oxide synthase (nNOS, encoded by NOS1), which are important molecules for anxiety regulation, might involve mechanisms of epigenetic modification, such as DNA methylation. Read More

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Oral squamous cell carcinoma-released brain-derived neurotrophic factor contributes to oral cancer pain by peripheral tropomyosin receptor kinase B activation.

Pain 2021 Jun 17. Epub 2021 Jun 17.

Departments of Endodontics, Pharmacology and Physiology, and Microbiology and Immunology, University of Texas Health, San Antonio, TX, United States.

Abstract: Oral cancer pain is debilitating and understanding mechanisms for it is critical to develop novel treatment strategies treatment strategies. Brain-derived neurotrophic factor (BDNF) signaling is elevated in oral tumor biopsies and is involved with tumor progression. Whether BDNF signaling in oral tumors contributes to cancer-induced pain is not known. Read More

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Associations between exercise, inflammation and symptom severity in those with mental health disorders.

Cytokine 2021 Jul 25;146:155648. Epub 2021 Jul 25.

School of Exercise Science, Sport and Health, Charles Sturt University, Bathurst, NSW, Australia.

Aim: This study aimed to investigate the effects of 6-weeks of moderate intensity aerobic exercise on markers of inflammation and symptom severity in those undergoing management of a mental health disorder.

Method: Twenty six participants were allocated into two groups, those reporting as apparently healthy (AH, n = 13) or those undergoing the management of a mental health disorder (MI, n = 13). Following a baseline testing and familiarization session, participants commenced the 6-week aerobic training intervention, involving stationary cycling at 65% heart rate reserve for 35 min progressing to 70% for 40 min. Read More

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Born to move: a review on the impact of physical exercise on brain health and the evidence from human controlled trials.

Arq Neuropsiquiatr 2021 Jun;79(6):536-550

Universidade Tiradentes, Departamento de Medicina, Laboratório de Biociências da Cinética Humana, Aracaju SE, Brazil.

Background: Physical exercise has been found to impact neurophysiological and structural aspects of the human brain. However, most research has used animal models, which yields much confusion regarding the real effects of exercise on the human brain, as well as the underlying mechanisms.

Objective: To present an update on the impact of physical exercise on brain health; and to review and analyze the evidence exclusively from human randomized controlled studies from the last six years. Read More

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Stamina-Enhancing Effects of Human Adipose-Derived Stem Cells.

Cell Transplant 2021 Jan-Dec;30:9636897211035409

Department of Biology Education, Korea National University of Education, Cheongju, Korea.

Stamina-enhancing effects of human adipose derived stem cells (hADSCs) were investigated in young Sprague-Dawley rats. Ten-day-old male rats were transplanted intravenously (IV) or intracerebroventricularly (ICV) with hADSCs (1 × 10 cells/rat), and physical activity was measured by locomotor activity and rota-rod performance at post-natal day (PND) 14, 20, 30, and 40, as well as a forced swimming test at PND 41. hADSCs injection increased the moving time in locomotor activity, the latency in rota-rod performance, and the maximum swimming time. Read More

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Pre-diagnosis physical activity habits are associated with age of diagnosis in Parkinson's disease.

Clin Park Relat Disord 2019 29;1:25-30. Epub 2019 Jul 29.

Department of Brain Health, University of Nevada, Las Vegas, USA.

Introduction: Studies suggest that exercise may be neuroprotective when implemented before the clinical presentation of Parkinson's disease (PD). Levels of brain-derived neurotrophic factor (BDNF), theorized to play a role in neuroprotection, are affected by its genotype and exercise. Here we explore this previously unstudied interaction on age at diagnosis and severity of symptoms. Read More

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Impact of brain-derived neurotrophic factor Val66Met polymorphism and response to escitalopram or paroxetine in obsessive-compulsive disorder.

CNS Spectr 2021 Jul 27:1-7. Epub 2021 Jul 27.

INSERM U1084 - Laboratoire de Neurosciences Expérimentales et Cliniques, Université de Poitiers, Poitiers, France.

Objective: Obsessive-compulsive disorder (OCD) is a severe psychiatric disorder characterized by its heterogeneous nature and by different dimensions of obsessive-compulsive (OC) symptoms. Serotonin reuptake inhibitors (SRIs) are used to treat OCD, but up to 40% to 60% of patients do not show a significant improvement with these medications. In this study, we aimed to test the impact of brain-derived neurotrophic factor (BDNF) Val66Met polymorphism on the efficacy of antidepressants in OCD overall, and in relation to the different OC dimensions. Read More

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The effect of electronic cigarettes exposure on learning and memory functions: behavioral and molecular analysis.

Inhal Toxicol 2021 Jul 27:1-10. Epub 2021 Jul 27.

Department of Psychology, Virginia Commonwealth University, Richmond, VA, USA.

Electronic cigarettes (ECIGs) are battery-powered devices that emit vaporized solutions for the user to inhale. ECIGs are marketed as a less harmful alternative to combustible cigarettes. The current study examined the effects of ECIG aerosol exposure on learning and memory, expression of brain derived neurotrophic factor (BDNF), and the activity of antioxidant enzymes in the hippocampus. Read More

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Association study of Val66Met gene polymorphism with bipolar disorder and lithium treatment response in Indian population.

J Psychopharmacol 2021 Jul 27:2698811211032609. Epub 2021 Jul 27.

Molecular Genetics Laboratory, Department of Psychiatry, National Institute of Mental Health and Neuro Sciences, Bengaluru, Karnataka, India.

Background: The association of the Val66Met (rs6265) polymorphism in the brain-derived neurotrophic factor () gene with bipolar disorder (BD) and response to lithium treatment has been suggested, though inconsistently. The considerable diversity of allele frequency across different populations contributes to this. There is no data from South Asia till date. Read More

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Brain-derived neurotrophic factor as a potential biomarker for sarcopenia and frailty in hemodialysis patients.

Geriatr Gerontol Int 2021 Jul 22. Epub 2021 Jul 22.

Division of Clinical Nephrology and Rheumatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.

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CNTs-CaP/chitosan-coated AZ91D magnesium alloy extract promoted rat dorsal root ganglia neuron growth via activating ERK signalling pathway.

Cell Biochem Funct 2021 Jul 22. Epub 2021 Jul 22.

Department of Neurology, First Affiliated Hospital of Harbin Medical University, Harbin, China.

Increasing attention has been paid on the application of biodegradable materials such as magnesium and its alloys in neuron repair. AZ91D magnesium alloy coated with carbon nanotubes (CNTs) and/or calcium phosphate (CaP)/chitosan (CS) was fabricated in this study. To evaluate the bioactivity of these AZ91D-based composites, the extracts were prepared by immersing samples in modified simulated body fluid (m-SBF) for 0, 2, 8, 16, 24, 34, 44, 60, or 90 days. Read More

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Resolvins as potential candidates for the treatment of major depressive disorder.

J Pharmacol Sci 2021 Sep 24;147(1):33-39. Epub 2021 May 24.

Laboratory of Molecular Pharmacology, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan.

In contrast with the delayed onset of therapeutic responses and relatively low efficacy of currently available monoamine-based antidepressants, a single subanesthetic dose of ketamine, an N-methyl-D-aspartate receptor antagonist, produces rapid and sustained antidepressant actions even in patients with treatment-resistant depression. However, since the clinical use of ketamine as an antidepressant is limited owing to its adverse effects, such as psychotomimetic/dissociative effects and abuse potential, there is an unmet need for novel rapid-acting antidepressants with fewer side effects. Preclinical studies have revealed that the antidepressant actions of ketamine are mediated via the release of brain-derived neurotrophic factor and vascular endothelial growth factor, with the subsequent activation of mechanistic target of rapamycin complex 1 (mTORC1) in the medial prefrontal cortex. Read More

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September 2021

Sensitivity-Enhanced Solid-State NMR Detection of Structural Differences and Unique Polymorphs in Pico- to Nanomolar Amounts of Brain-Derived and Synthetic 42-Residue Amyloid-β Fibrils.

J Am Chem Soc 2021 Jul 26. Epub 2021 Jul 26.

School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan.

Amyloid-β (Aβ) fibrils in neuritic plaques are a hallmark of Alzheimer's disease (AD). Since the 42-residue Aβ (Aβ42) fibril is the most pathogenic among different Aβ species, its structural characterization is crucial to our understanding of AD. While several polymorphs have been reported for Aβ40, previous studies of Aβ42 fibrils prepared at neutral pH detected essentially only one structure, with an S-shaped β-sheet arrangement (, Xiao et al. Read More

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Alpha-Synuclein as a Biomarker of Parkinson's Disease: Good, but Not Good Enough.

Front Aging Neurosci 2021 8;13:702639. Epub 2021 Jul 8.

Department of Biochemistry and Central Research Laboratory, Maharishi Markandeshwar Institute of Medical Sciences and Research, Maharishi Markandeshwar Deemed University, Ambala, India.

Parkinson's disease (PD) is the second most common neurodegenerative disorder of the elderly, presenting primarily with symptoms of motor impairment. The disease is diagnosed most commonly by clinical examination with a great degree of accuracy in specialized centers. However, in some cases, non-classical presentations occur when it may be difficult to distinguish the disease from other types of degenerative or non-degenerative movement disorders with overlapping symptoms. Read More

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Chronic Isolation Stress Affects Central Neuroendocrine Signaling Leading to a Metabolically Active Microenvironment in a Mouse Model of Breast Cancer.

Front Behav Neurosci 2021 9;15:660738. Epub 2021 Jul 9.

Center for Behavioral Sciences and Mental Health, Istituto Superiore di Sanità, Rome, Italy.

Social isolation is a powerful stressor capable of affecting brain plasticity and function. In the case of breast cancer, previous data indicate that stressful experiences may contribute to a worse prognosis, activating neuroendocrine and metabolism pathways, although the mechanisms underlying these effects are still poorly understood. In this study, we tested the hypothesis that chronic isolation stress (IS) may boost hypothalamic-pituitary-adrenal (HPA) axis activity, leading to changes in the hypothalamic expression of genes modulating both mood and metabolism in an animal model of breast cancer. Read More

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Effects of Repetitive Transcranial Magnetic Stimulation (rTMS) and Treadmill Training on Recovery of Motor Function in a Rat Model of Partial Spinal Cord Injury.

Med Sci Monit 2021 Jul 25;27:e931601. Epub 2021 Jul 25.

School of Rehabilitation Medicine, Nanjing Medical University, Center of Rehabilitation Medicine, 1st affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China (mainland).

BACKGROUND This study aimed to investigate the effects of repetitive transcranial magnetic stimulation (rTMS) and treadmill training (TT) on motor function recovery in rats with partial spinal cord injury (SCI). MATERIAL AND METHODS Sixty rats with moderate partial SCI at the 9th thoracic vertebral level induced by a Louisville Injury System Apparatus impactor were randomly allocated to 5 groups: Sham surgery (Intact); Sham rTMS without TT (S-rTMS/Non-TT); Sham rTMS with TT (S-rTMS/TT); rTMS without TT (rTMS/Non-TT); and rTMS with TT (rTMS/TT). Interventions commenced 8 days after SCI and continued for 8 weeks. Read More

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The effect of microglial inhibition on the expression of BDNF, KCC2 and GABAA receptor before and after the establishment of CCI-induced neuropathic pain model.

Fundam Clin Pharmacol 2021 Jul 24. Epub 2021 Jul 24.

Department of Pharmacology, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

Background: Damage to the peripheral or central nervous system results in Neuropathic pain. Based on a complicated mechanism, neuropathic pain has no efficient treatment so far. It has been well-known that the expression of some proteins (BDNF, KCC2, GABA-A) during neuropathic pain changes. Read More

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Cannabidiol Confers Neuroprotection in Rats in a Model of Transient Global Cerebral Ischemia: Impact of Hippocampal Synaptic Neuroplasticity.

Mol Neurobiol 2021 Jul 24. Epub 2021 Jul 24.

Department of Pharmacology and Therapeutics, State University of Maringá, Av. Colombo, Maringá, Paraná, 5790, 87020-900, Brazil.

Evidence for the clinical use of neuroprotective drugs for the treatment of cerebral ischemia (CI) is still greatly limited. Spatial/temporal disorientation and cognitive dysfunction are among the most prominent long-term sequelae of CI. Cannabidiol (CBD) is a non-psychotomimetic constituent of Cannabis sativa that exerts neuroprotective effects against experimental CI. Read More

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BDNF Impact on Biological Markers of Depression-Role of Physical Exercise and Training.

Int J Environ Res Public Health 2021 Jul 15;18(14). Epub 2021 Jul 15.

CIPER, Faculty of Human Kinetics, University of Lisboa, 1499-002 Cruz Quebrada, Portugal.

Depression is the most common and devastating psychiatric disorder in the world. Its symptoms, especially during the pandemic, are observed in all age groups. Exercise training (ET) is well known as a non-pharmacological strategy to alleviate clinical depression. Read More

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A Multicentre, Randomised, Controlled Trial of a Combined Clinical Treatment for First-Episode Psychosis.

Int J Environ Res Public Health 2021 Jul 6;18(14). Epub 2021 Jul 6.

Centre for Biomedical Research in the Mental Health Network (CIBERSAM), 28029 Madrid, Spain.

Introduction: There is evidence that early intervention contributes to improving the prognosis and course of first-episode psychosis (FEP). However, further randomised treatment clinical trials are needed.

Objectives: The aim of this study was to compare the efficacy of a combined clinical treatment involving Cognitive Behavioural Therapy (CBT) as an adjunctive to treatment-as-usual (TAU) (CBT+TAU) versus TAU alone for FEP. Read More

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Escitalopram Targets Oxidative Stress, Caspase-3, BDNF and MeCP2 in the Hippocampus and Frontal Cortex of a Rat Model of Depression Induced by Chronic Unpredictable Mild Stress.

Int J Mol Sci 2021 Jul 13;22(14). Epub 2021 Jul 13.

Department of Physiology, "Iuliu Hatieganu" University of Medicine and Pharmacy, 400006 Cluj-Napoca, Romania.

In recent years, escitalopram (ESC) has been suggested to have different mechanisms of action beyond its well known selective serotonin reuptake inhibition. The aim of this study is to investigate the effects of escitalopram on oxidative stress, apoptosis, brain-derived neurotrophic factor (BDNF), Methyl-CpG-binding protein 2 (MeCP2), and oligodendrocytes number in the brain of chronic unpredictable mild stress-induced depressed rats. The animals were randomised in four groups (8 in each group): control, stress, stress + ESC 5 and stress + ESC 5/10. Read More

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Molecular Basis of Late-Life Depression.

Int J Mol Sci 2021 Jul 10;22(14). Epub 2021 Jul 10.

Department of Psychiatry, China Medical University Hospital, Taichung 40402, Taiwan.

Late-life depression (LLD), compared to depression at a young age, is more likely to have poor prognosis and high risk of progression to dementia. A recent systemic review and meta-analysis of the present antidepressants for LLD showed that the treatment response rate was 48% and the remission rate was only 33.7%, thus implying the need to improve the treatment with other approaches in the future. Read More

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Modulation of Brain-Derived Neurotrophic Factor (BDNF) Signaling Pathway by Culinary Sage ( L.).

Int J Mol Sci 2021 Jul 9;22(14). Epub 2021 Jul 9.

Department of Food Science, University of Tennessee, Knoxville, TN 37996, USA.

Culinary sage ( L.) is a common spice plant in the mint family (Lamiaceae) well known for its distinctive culinary and traditional medicinal uses. Sage tea has been used traditionally as a brain-enhancing tonic and extracts from sage have been reported to have both cognitive and memory enhancing effects. Read More

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Local magnetic delivery of recombinant adeno-associated virus AAV2(quad Y-F) mediated brain-derived neurotrophic factor gene therapy restores hearing after noise injury.

Mol Ther 2021 Jul 20. Epub 2021 Jul 20.

Biological Sciences Platform, Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, ON, M4N 3M5, Canada; Department of Otolaryngology Head & Neck Surgery, Faculty of Medicine, University of Toronto, ON, M5S 1A1, Canada. Electronic address:

Moderate noise exposure may cause acute loss of cochlear synapses without affecting the cochlear hair cells and hearing threshold; thus, it remains "hidden" to standard clinical tests. This cochlear synaptopathy is one of the main pathologies of noise-induced hearing loss (NIHL). There is no effective treatment for NIHL, mainly because of the lack of a proper drug delivery technique. Read More

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Doxorubicin induces dysregulation of AMPA receptor and impairs hippocampal synaptic plasticity leading to learning and memory deficits.

Heliyon 2021 Jul 1;7(7):e07456. Epub 2021 Jul 1.

Department of Drug Discovery and Development, Auburn University, Auburn, Alabama, USA.

Doxorubicin (Dox) is a chemotherapeutic agent used widely to treat a variety of malignant cancers. However, Dox chemotherapy is associated with several adverse effects, including "chemobrain," the observation that cancer patients exhibit through learning and memory difficulties extending even beyond treatment. This study investigated the effect of Dox treatment on learning and memory as well as hippocampal synaptic plasticity. Read More

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Contextual Fear Memory Maintenance Changes Expression of pMAPK, BDNF and IBA-1 in the Pre-limbic Cortex in a Layer-Specific Manner.

Front Neural Circuits 2021 6;15:660199. Epub 2021 Jul 6.

School of Clinical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, QLD, Australia.

Post-traumatic stress disorder (PTSD) is a debilitating and chronic fear-based disorder. Pavlovian fear conditioning protocols have long been utilised to manipulate and study these fear-based disorders. Contextual fear conditioning (CFC) is a particular Pavlovian conditioning procedure that pairs fear with a particular context. Read More

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BDNF produced by cerebral microglia promotes cortical plasticity and pain hypersensitivity after peripheral nerve injury.

PLoS Biol 2021 Jul 22;19(7):e3001337. Epub 2021 Jul 22.

Department of Anesthesiology, New York University School of Medicine, New York, New York, United States of America.

Peripheral nerve injury-induced mechanical allodynia is often accompanied by abnormalities in the higher cortical regions, yet the mechanisms underlying such maladaptive cortical plasticity remain unclear. Here, we show that in male mice, structural and functional changes in the primary somatosensory cortex (S1) caused by peripheral nerve injury require neuron-microglial signaling within the local circuit. Following peripheral nerve injury, microglia in the S1 maintain ramified morphology and normal density but up-regulate the mRNA expression of brain-derived neurotrophic factor (BDNF). Read More

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Elevated levels of cortisol, brain-derived neurotropic factor and tissue plasminogen activator in male children with autism spectrum disorder.

Autism Res 2021 Jul 22. Epub 2021 Jul 22.

Department of Child and Adolescent Psychiatry, Gaziosmanpasa University School of Medicine, Tokat, Turkey.

Several studies demonstrated biological effects of cortisol, brain-derived neurotrophic factor (BDNF) and tissue plasminogen activator (tPA) on human metabolism and central nervous system. Our study investigated the serum levels of tPA along with BDNF and cortisol in children with autism spectrum disorder (ASD). Thirty three male children with ASD ranging in age from 2 to 15 years were selected for the study group and 27 age-matched healthy male children were selected for the control group. Read More

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Transgenerational evidence of increases in dopamine D2 receptor sensitivity in rodents: Impact on sensorimotor gating, the behavioral response to nicotine and BDNF.

J Psychopharmacol 2021 Jul 22:2698811211033927. Epub 2021 Jul 22.

James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, USA.

Background/aims: Neonatal quinpirole (NQ) treatment to rats increases dopamine D (DAD) receptor sensitivity in adult animals. We investigated if increased DAD sensitivity would be passed to the next (F1) generation, and if these animals demonstrated sensorimotor gating deficits and enhanced behavioral responses to nicotine.

Methods: Male and female rats were intraperitoneal (IP) administered quinpirole (1 mg/kg) or saline (NS) from postnatal day (P)1-21. Read More

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Efficacy of Methotrexate on Rat Knee Osteoarthritis Induced by Monosodium Iodoacetate.

J Inflamm Res 2021 15;14:3247-3259. Epub 2021 Jul 15.

Department of Orthopedic Surgery, Aichi Medical University, Nagakute, Aichi, Japan.

Objective: To explore whether methotrexate (MTX) prevents joint destruction and improves pain-related behaviors in the acute phase of knee osteoarthritis (OA) induced by monosodium iodoacetate (MIA) in a rat model.

Methods: Twenty of 25 male Wistar rats (10-14 weeks old) received 3 mg MIA via intra-articular injection into their right knee and were then administered a vehicle control (n=10) or 3 mg/kg MTX orally weekly (n=10). We assessed differences in pain-related behavior, spontaneous lifting behavior, micro-computed tomography (CT), histopathology, and expression of pain- and inflammatory-related genes using reverse transcription-quantitative polymerase chain reaction (RT-qPCR) between the two groups for 4 weeks. Read More

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