1,561 results match your criteria bdnf serotonin


Costunolide ameliorates intestinal dysfunction and depressive behaviour in mice with stress-induced irritable bowel syndrome colonic mast cell activation and central 5-hydroxytryptamine metabolism.

Food Funct 2021 May;12(9):4142-4151

Precision Pharmacy & Drug Development Center, Department of Pharmacy, the Second Affiliated Hospital of Air Force Medical University, Xi'an 710038, China.

Irritable bowel syndrome (IBS) is a common chronic functional bowel disease, associated with a high risk of depression and anxiety. The brain-gut axis plays an important role in the pathophysiological changes involved in IBS; however, an effective treatment for the same is lacking. The natural compound costunolide (COS) has been shown to exert gastroprotective, enteroprotective, and neuroprotective effects, but its therapeutic effects in IBS are unclear. Read More

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Saffron (), Combined with Endurance Exercise, Synergistically Enhances BDNF, Serotonin, and NT-3 in Wistar Rats.

Rep Biochem Mol Biol 2021 Jan;9(4):426-434

Department of Nutritional Sciences and Food Technology, Kermanshah University of Medical Sciences, Kermanshah, Iran.

Background: Evidence indicates that combined approaches based on exercise and nutrition benefit neural development. We aimed to determine the effect of saffron and endurance training on hippocampus neurogenic factors, neurotrophin-3 gene expression in soleus muscle, and short-term memory in Wistar rats.

Methods: The study analyzed four groups of ten rats each: control, exercise, saffron, and saffron plus exercise. Read More

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January 2021

Hijacking Dorsal Raphe to Improve Metabolism and Depression-like Behaviors via BDNF Gene Transfer in Mice.

Diabetes 2021 May 7. Epub 2021 May 7.

State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, 100005, China

Moods and metabolism modulate each other. High comorbidity of depression and metabolic disorders such as diabetes and obesity poses a great challenge to treat such condition. Here we report the therapeutic efficacy of brain-derived neurotrophic factor (BDNF) by gene transfer in the dorsal raphe nucleus (DRN) in a chronic unpredictable mild stress model of depression (CUMS) and models of diabetes and obesity. Read More

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Hydroxychloroquine Increased Anxiety-Like Behaviors and Disrupted the Expression of Some Related Genes in the Mouse Brain.

Front Pharmacol 2021 19;12:633112. Epub 2021 Apr 19.

CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China.

Hydroxychloroquine (HCQ), which has been proposed as a therapeutic or prophylactic drug for COVID-19, has been administered to thousands of individuals with varying efficacy; however, our understanding of its adverse effects is insufficient. It was reported that HCQ induced psychiatric symptoms in a few patients with autoimmune diseases, but it is still uncertain whether HCQ poses a risk to mental health. Therefore, in this study, we treated healthy mice with two different doses of HCQ that are comparable to clinically administered doses for 7 days. Read More

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Depletion of TrkB Receptors From Adult Serotonergic Neurons Increases Brain Serotonin Levels, Enhances Energy Metabolism and Impairs Learning and Memory.

Front Mol Neurosci 2021 15;14:616178. Epub 2021 Apr 15.

Neuroscience Center, Helsinki Institute of Life Science HiLIFE, University of Helsinki, Helsinki, Finland.

Neurotrophin brain-derived neurotrophic factor (BDNF) and neurotransmitter serotonin (5-HT) regulate each other and have been implicated in several neuronal mechanisms, including neuroplasticity. We have investigated the effects of BDNF on serotonergic neurons by deleting BDNF receptor TrkB from serotonergic neurons in the adult brain. The transgenic mice show increased 5-HT and Tph2 levels with abnormal behavioral phenotype. Read More

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Psychiatric risk and resilience: Plasticity genes and positive mental health.

Brain Behav 2021 May 1:e02137. Epub 2021 May 1.

Department of Psychology, University of Massachusetts Boston, Boston, MA, USA.

Objective: The at-risk mental state (ARMS) for psychosis has long played a key role in diathesis-stress models of schizophrenia. More recent studies, however, have called for extending the boundaries of the ARMS construct beyond attenuated psychosis in nonhelp-seeking samples to include not only other vulnerability indicators but also protective factors related to genotype, mental health, personality, and cognition.

Method: Accordingly, we assessed in a sample of 100 college students, the ARMS construct with the Brief Prodromal Questionnaire (PQ-B) for psychosis, in conjunction with measures of positive mental health, childhood adversity, psychiatric symptoms, personality traits, social cognition, and genetic variables derived from assays of the serotonin transporter (5-HTTLPR) and the brain-derived neurotrophic factor (BDNF). Read More

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Biological Markers in Anxiety Disorders.

J Clin Med 2021 Apr 17;10(8). Epub 2021 Apr 17.

Department of Psychiatry, Medical University of Bialystok, Plac Brodowicza 1, 16-070 Choroszcz, Poland.

Anxiety disorders are one of the most commonly reported disorders in psychiatry, causing a high medical and socio-economic burden. Recently, there has been a soaring interest in the biological basis of anxiety disorders, which is reflected in an increasing number of articles related to the topic. Due to the ambiguity of the diagnosis and a large number of underdiagnosed patients, researchers are looking for laboratory tests that could facilitate the diagnosis of anxiety disorders in clinical practice and would allow for the earliest possible implementation of appropriate treatment. Read More

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The Relationship between Overweight/Obesity and Executive Control in College Students: The Mediating Effect of BDNF and 5-HT.

Life (Basel) 2021 Apr 3;11(4). Epub 2021 Apr 3.

College of Physical Education, Yangzhou University, Yangzhou 225127, China.

The main aim of this study was to explore the association between overweight/obesity and executive control (EC) in young adults, and to further analyze the mediating effect of brain-derived neurotrophic factor (BDNF) and serotonin (5-hydroxytryptamine (5-HT)) on the relationship between overweight/obesity and EC. A total of 449 college students aged between 18 and 20 years were recruited for the study between March and December 2019. Their height and weight were then measured professionally. Read More

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Antidepressant action of transcranial direct current stimulation in olfactory bulbectomised adolescent rats.

J Psychopharmacol 2021 Apr 28:2698811211000765. Epub 2021 Apr 28.

Department of Psychology, Memorial University of Newfoundland, St. John's, Canada.

Background: Antidepressant drugs in adolescent depression are sometimes mired by efficacy issues and paradoxical effects. Transcranial direct current stimulation (tDCS) could represent an alternative.

Aims/methods: We tested the antidepressant action of prefrontal tDCS and paroxetine (20 mg/kg, intraperitoneal) in olfactory bulbectomised (OBX) adolescent rats. Read More

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Targeting the dysfunction of glutamate receptors for the development of novel antidepressants.

Pharmacol Ther 2021 Apr 24;226:107875. Epub 2021 Apr 24.

Institute of Clinical Medical Sciences & Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, People's Republic of China. Electronic address:

Increasing evidence indicates that dysfunction of glutamate receptors is involved in the pathophysiology of major depressive disorder (MDD). Although accumulating efforts have been made to elucidate the applications and mechanisms underlying antidepressant-like effects of ketamine, a non-selective antagonist of N-methyl-d-aspartate receptor (NMDAR), the role of specific glutamate receptor subunit in regulating depression is not completely clear. The current review aims to discuss the relationships between glutamate receptor subunits and depressive-like behaviors. Read More

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Evidence of an antidepressant-like effect of xylopic acid mediated by serotonergic mechanisms.

Psychopharmacology (Berl) 2021 Apr 10. Epub 2021 Apr 10.

Department of Pharmacology and Toxicology, School of Pharmacy, University of Health and Allied Sciences, Ho, Ghana.

Background: Depression causes significant debilitating symptoms and economic burden. Current management is challenged by slow onset of action and modest efficacies of antidepressants; thus, the search for newer antidepressants remains relevant. We evaluated the antidepressant effects of a kaurene diterpene, xylopic acid (XA), in zebrafish and mouse models. Read More

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A Load to Find Clinically Useful Biomarkers for Depression.

Adv Exp Med Biol 2021 ;1305:175-202

Division of Molecular Medicine, Laboratory for Molecular Neuropsychiatry, Rudjer Boskovic Institute, Zagreb, Croatia.

Depression is heterogeneous and complex disease with diverse symptoms. Its neurobiological underpinning is still not completely understood. For now, there are still no validated, easy obtainable, clinically useful noninvasive biomarker(s) or biomarker panel that will be able to confirm a diagnosis of depression, its subtypes and improve diagnostic procedures. Read More

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Therapeutic of Candesartan and Music Therapy in Diabetic Retinopathy with Depression in Rats.

Evid Based Complement Alternat Med 2021 26;2021:5570356. Epub 2021 Mar 26.

Department of Ophthalmology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China.

This study aimed to investigate the therapeutic effects of candesartan combined with music therapy on diabetic retinopathy with depression and to assess the molecular mechanisms. Associated animal model of diabetes mellitus and depression was established in rats. Pathological changes in the hippocampus were detected by haematoxylin eosin (H&E) staining. Read More

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Adolescent fluoxetine treatment mediates a persistent anxiety-like outcome in female C57BL/6 mice that is ameliorated by fluoxetine re-exposure in adulthood.

Sci Rep 2021 Apr 8;11(1):7758. Epub 2021 Apr 8.

Department of Psychology, The University of Texas at El Paso, 500 West University Avenue, El Paso, TX, 79968, USA.

The objective of this study was to evaluate whether juvenile fluoxetine (FLX) exposure induces long-term changes in baseline responses to anxiety-inducing environments, and if so, whether its re-exposure in adulthood would ameliorate this anxiety-like phenotype. An additional goal was to assess the impact of adolescent FLX pretreatment, and its re-exposure in adulthood, on serotonin transporters (5-HTT) and brain-derived-neurotrophic-factor (BDNF)-related signaling markers (TrkB-ERK1/2-CREB-proBDNF-mBDNF) within the hippocampus and prefrontal cortex. To do this, female C57BL/6 mice were exposed to FLX in drinking water during postnatal-days (PD) 35-49. Read More

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Cortical influences of serotonin and glutamate on layer V pyramidal neurons.

Prog Brain Res 2021 14;261:341-378. Epub 2021 Jan 14.

Consultant, Ardmore, PA, United States.

Layer V pyramidal neurons constitute principle output neurons of the medial prefrontal cortex (mPFC)/neocortex to subcortical regions including the intralaminar/midline thalamic nuclei, amygdala, basal ganglia, brainstem nuclei and the spinal cord. The effects of 5-hydroxytryptamine (5-HT) on layer V pyramidal cells primarily reflect a range of excitatory influences through 5-HT receptors and inhibitory influences through non-5-HT receptors, including 5-HT receptors. While the 5-HT receptor is primarily a postsynaptic receptor on throughout the apical dendritic field of 5-HT receptors, activation of a minority of 5-HT receptors also appears to increase spontaneous excitatory postsynaptic currents/potentials (EPSCs/EPSPs) via a presynaptic effect on thalamocortical terminals arising from the midline and intralaminar thalamic nuclei. Read More

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January 2021

Investigations of follicular fluid biomarkers in patients undergoing

Orv Hetil 2021 03 30;162(14):523-529. Epub 2021 Mar 30.

3 Pécsi Tudományegyetem, Általános Orvostudományi Kar, Szentágothai János Kutatóközpont, Humán Reprodukciós Kutatócsoport, Pécs.

Összefoglaló. A szerzők ismertetik vizsgálataik eredményeit, melyeket a közelmúltban az in vitro fertilizációs kezelésben részesülő betegeikben a tüszőfolyadék biomarkereinek analízisével értek el. A vizsgálatok célja annak feltárása volt, hogy az in vitro fertilizációs eljárás során a petesejtek aspirációjakor nyert tüszőfolyadék-biomarkerek lokális/ovarialis vagy szisztémás eredetűek, és milyen összefüggést mutatnak az in vitro fertilizáció eredményességét jelző paraméterekkel. Read More

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Long-term effects of young-adult methamphetamine on dorsal raphe serotonin systems in mice: Role of brain-derived neurotrophic factor.

Brain Res 2021 Jul 15;1762:147428. Epub 2021 Mar 15.

School of Psychology and Public Health, La Trobe University, Melbourne, Australia; Department of Pharmacology, University of Melbourne, Australia; College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, Australia. Electronic address:

To assess the long-term effects of chronic adolescent methamphetamine (METH) treatment on the serotonin system in the brain, we used serotonin-1A receptor (5-HT) and serotonin transporter (SERT) autoradiography, and quantitative tryptophan-hydroxylase 2 (TPH2) immunohistochemistry in the raphe nuclei of mice. Because of the modulatory role of brain-derived neurotrophic factor (BDNF) on the serotonin system and the effects of METH, we included both BDNF heterozygous (HET) mice and wildtype (WT) controls. Male and female mice of both genotypes were treated with an escalating METH dose regimen from the age of 6-9 weeks. Read More

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Mechanisms of Psychiatric Comorbidities in Epilepsy.

Authors:
Jamie Maguire

Curr Top Behav Neurosci 2021 Mar 16. Epub 2021 Mar 16.

Neuroscience Department, Tufts University School of Medicine, Boston, MA, USA.

Psychiatric illnesses, including depression and anxiety, are highly comorbid with epilepsy (for review see Josephson and Jetté (Int Rev Psychiatry 29:409-424, 2017), Salpekar and Mula (Epilepsy Behav 98:293-297, 2019)). Psychiatric comorbidities negatively impact the quality of life of patients (Johnson et al., Epilepsia 45:544-550, 2004; Cramer et al. Read More

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Does breaking up prolonged sitting improve cognitive functions in sedentary adults? A mapping review and hypothesis formulation on the potential physiological mechanisms.

BMC Musculoskelet Disord 2021 Mar 12;22(1):274. Epub 2021 Mar 12.

Department of Physiotherapy, College of Health Sciences, University of Sharjah, P.O.Box 27272, Sharjah, United Arab Emirates.

Background: Prolonged (excessive) sitting is detrimentally associated with cardiovascular, metabolic and mental health. Moreover, prolonged sitting has been associated with poor executive function, memory, attention and visuospatial skills, which are important cognitive aspects of work performance. Breaking up prolonged sitting with standing or light-intensity exercises at the workplace is recognized as a potential measure in improving cognition. Read More

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Effects of maternal exposure to arsenic on social behavior and related gene expression in F2 male mice.

Environ Health Prev Med 2021 Mar 11;26(1):34. Epub 2021 Mar 11.

Center for Health and Environmental Risk Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, 305-8506, Japan.

Background: Arsenic is a developmental neurotoxicant. It means that its neurotoxic effect could occur in offspring by maternal arsenic exposure. Our previous study showed that developmental arsenic exposure impaired social behavior and serotonergic system in C3H adult male mice. Read More

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Estrogen and serotonin enhance stress-induced visceral hypersensitivity in female rats by up-regulating brain-derived neurotrophic factor in spinal cord.

Neurogastroenterol Motil 2021 Mar 11:e14117. Epub 2021 Mar 11.

Division of Gastroenterology and Hepatology, Internal Medicine, University of Texas Medical Branch, Galveston, TX, USA.

Background: We previously reported that female offspring of dams subjected to chronic prenatal stress (CPS) develop enhanced visceral hypersensitivity (VHS) following exposure to chronic stress in adult life that is mediated by up-regulation of spinal cord BDNF. The aims of this study were to examine the roles of estrogen receptor alpha (ERα) and an increase in spinal serotonin signaling in promoting this enhanced VHS in female rats and up-regulation of spinal cord BDNF transcription.

Methods: Pregnant dams were exposed to chronic stress from E11 until delivery. Read More

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The Mediating Effect of Psychological Distress on the Association between BDNF, 5-HTTLPR, and Tinnitus Severity.

Psychiatry Investig 2021 Mar 10;18(3):187-195. Epub 2021 Mar 10.

Department of Psychiatry, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.

Objective: To investigate the association between genetic polymorphisms of brain-derived neurotrophic factor (BDNF) or serotonin transporter gene-linked polymorphic region (5-HTTLPR) and tinnitus, and the mediating effects of psychological distress on this association.

Methods: Eighty-six patients experiencing tinnitus and 252 controls were recruited. The Tinnitus Handicap Inventory was used to assess the severity of tinnitus and the Beck Depression Inventory-II (BDI-II), Beck Anxiety Inventory-II (BAI-II), and the Korean version of the Brief Encounter Psychosocial Instrument (BEPSI-K) were used to assess psychological distress. Read More

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The Impact of Intermittent Fasting on Brain-Derived Neurotrophic Factor, Neurotrophin 3, and Rat Behavior in a Rat Model of Type 2 Diabetes Mellitus.

Brain Sci 2021 Feb 15;11(2). Epub 2021 Feb 15.

Department of Physiology, College of Medicine and Health Sciences, Sultan Qaboos University, P.O. Box 35, Al Koudh, Muscat PC 123, Oman.

Type 2 diabetes mellitus (T2DM) is known to be associated with an increased risk of dementia, specifically Alzheimer's disease and vascular dementia. Intermittent fasting (IF) has been proposed to produce neuroprotective effects through the activation of several signaling pathways. In this study, we investigated the effect of IF on rat behavior in type 2 diabetic rats. Read More

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February 2021

An Integrative Pharmacology-Based Pattern to Uncover the Pharmacological Mechanism of Ginsenoside H Dripping Pills in the Treatment of Depression.

Front Pharmacol 2020 15;11:590457. Epub 2021 Feb 15.

State Key Laboratory of Drug Delivery Technology and Pharmacokinetics, Tianjin Institute of Pharmaceutical Research, Tianjin, China.

To evaluate the pharmacodynamical effects and pharmacological mechanism of Ginsenoside H dripping pills (GH) in chronic unpredictable mild stress (CUMS) model rats. First, the CUMS-induced rat model was established to assess the anti-depressant effects of GH (28, 56, and 112 mg/kg) by the changes of the behavioral indexes (sucrose preference, crossing score, rearing score) and biochemical indexes (serotonin, dopamine, norepinephrine) in Hippocampus. Then, the components of GH were identified by ultra-performance liquid chromatography-iron trap-time of flight-mass spectrometry (UPLC/IT-TOF MS). Read More

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February 2021

Effects of Selective Serotonin Reuptake Inhibitors on Depression-Like Behavior in a Laser-Induced Shock Wave Model.

Front Neurol 2021 10;12:602038. Epub 2021 Feb 10.

Division of Traumatology, Research Institute, National Defense Medical College, Saitama, Japan.

Primary blast injury can result in depression-like behavior in the long-term. However, the effects of the selective serotonin reuptake inhibitor (SSRI) on the depression induced by mild blast traumatic brain injury (bTBI) in the long-term remain unclear. We generated a mouse model of mild bTBI using laser-induced shock wave (LISW) and administered an SSRI to mice by oral gavage for 14 days after LISW exposure. Read More

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February 2021

Total glycosides from stems of Cistanche tubulosa alleviate depression-like behaviors: bidirectional interaction of the phytochemicals and gut microbiota.

Phytomedicine 2021 Mar 22;83:153471. Epub 2021 Jan 22.

School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China. Electronic address:

Background: As the most frequently used kidney-yang tonifying herb in traditional Chinese medicine, dried succulent stems of Cistanche tubulosa (Schenk) Wight (CT) have been shown to be effective in the treatment of depression. However, the antidepressant components and their underlying mechanism remain unclear.

Purpose: To explore the active components of CT against depression, as well as the potential mechanisms. Read More

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Differential susceptibility 2.0: Are the same children affected by different experiences and exposures?

Dev Psychopathol 2021 Feb 26:1-9. Epub 2021 Feb 26.

Department of Human Ecology, University of California, Davis, CA, USA.

Differential susceptibility theory stipulates that some children are more susceptible than others to both supportive and adverse developmental experiences/exposures. What remains unclear is whether the same individuals are most affected by different exposures (i.e. Read More

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February 2021

Indoxyl sulfate caused behavioral abnormality and neurodegeneration in mice with unilateral nephrectomy.

Aging (Albany NY) 2021 02 17;13(5):6681-6701. Epub 2021 Feb 17.

Department of Medical Research, Taichung Veterans General Hospital, Taichung 407, Taiwan.

Chronic Kidney Disease (CKD) and neurodegenerative diseases are aging-related diseases. CKD with declined renal function is associated with an elevation of circulating indoxyl sulfate, a metabolite synthesized by gut microbes. We explored the roles of gut microbial metabolites in linking with Central Nervous System (CNS) diseases by administrating indoxyl sulfate intraperitoneally to male C57BL/6 mice with unilateral nephrectomy. Read More

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February 2021

Opium Effect in Pregnancy on the Dynamics of Maternal Behavior: Testing a Neurochemical Model.

Neuropsychobiology 2021 19;80(2):147-157. Epub 2021 Feb 19.

Department of Psychiatry and Behavioral Neurosciences, McMaster University, Hamilton, Ontario, Canada.

Background: Investigations into neurochemical mechanisms of opioid addiction are difficult due to the complexity of behavior and multiplicity of involved neurotransmitter and hormonal systems. The aim of this study was to examine the benefits of structured analysis of these mechanisms using the framework of the neurochemical model Functional Ensemble of Temperament (FET) and the example of maternal behavior under the condition of opium consumption in pregnancy. The FET differentiates between (a) endurance, (b) speed of integration, and (c) emotionality aspects of behavior suggesting that these systems are differentially regulated by (a) serotonin-neuropeptides-brain-derived neurotrophic factor (BDNF), (b) dopamine-GABA, and (c) opioid receptor systems, correspondingly. Read More

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February 2021

Dietary tryptophan depletion alters the faecal bacterial community structure of compulsive drinker rats in schedule-induced polydipsia.

Physiol Behav 2021 May 10;233:113356. Epub 2021 Feb 10.

Department of Psychology and Health Research Center (CEINSA), University of Almería, Ctra. Sacramento s/n, 04120 Almería, Spain. Electronic address:

Rationale: Compulsive behaviour, present in different psychiatric disorders such as obsessive-compulsive disorder, schizophrenia and drug abuse, is associated with altered levels of serotonin (5-hydroxytryptamine, 5-HT). The gut microbiota regulates tryptophan (TRP) metabolism and may affect global 5-H synthesis in the enteric and central nervous systems, suggesting a possible involvement of gut microbiota in compulsive spectrum disorders.

Objectives: The present study investigated whether chronic TRP depletion by diet alters the faecal bacterial community profiles of compulsive versus non-compulsive rats in schedule-induced polydipsia (SIP). Read More

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