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Jibril TI, Alzoubi KH, Mhaidat NM, Khabour OF, Alqudah MA, Rababa’h AM, Alrabadi N, Al-udatt D. Sildenafil prevents chronic psychosocial stress-induced working memory impairment: Role of brain-derived neurotrophic factor. CURRENT RESEARCH IN PHARMACOLOGY AND DRUG DISCOVERY 2024; 6:100182. [PMID: 38706525 PMCID: PMC11067328 DOI: 10.1016/j.crphar.2024.100182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 03/29/2024] [Accepted: 04/12/2024] [Indexed: 05/07/2024] Open
Abstract
Background Psychosocial stress, a common feature in modern societies, impairs cognitive functions. It is suggested that stress hormones and elevated excitatory amino acids during stress are responsible for stress-induced cognitive deficits. Reduced brain-derived neurotrophic factor (BDNF) levels, increased oxidative stress, and alteration of synaptic plasticity biomarkers are also possible contributors to the negative impact of stress on learning and memory. Sildenafil citrate is a selective phosphodiesterase type 5 (PDE5) inhibitor and the first oral therapy for the treatment of erectile dysfunction. It has been shown that sildenafil improves learning and memory and possesses antioxidant properties. We hypothesized that administering sildenafil to stressed rats prevents the cognitive deficit induced by chronic psychosocial stress. Methods Psychosocial stress was generated using the intruder model. Sildenafil 3 mg/kg/day was administered intraperitoneally to animals. Behavioral studies were conducted to test spatial learning and memory using the radial arm water maze. Then, the hippocampal BDNF level and several antioxidant markers were assessed. Results This study revealed that chronic psychosocial stress impaired short-term but not long-term memory. The administration of sildenafil prevented this short-term memory impairment. Chronic psychosocial stress markedly reduced the level of hippocampal BDNF (P˂0.05), and this reduction in BDNF was normalized by sildenafil treatment. In addition, neither chronic psychosocial stress nor sildenafil significantly altered the activity of measured oxidative parameters (P > 0.05). Conclusion Chronic psychosocial stress induces short-term memory impairment. The administration of sildenafil citrate prevented this impairment, possibly by normalizing the level of BDNF.
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Affiliation(s)
- Tareq I. Jibril
- Department of Clinical Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
| | - Karem H. Alzoubi
- Department of Pharmacy Practice and Pharmacotherapeutics, College of Pharmacy, University of Sharjah, Sharjah, United Arab Emirates
- Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
| | - Nizar M. Mhaidat
- Department of Clinical Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
| | - Omar F. Khabour
- Department of Medical Laboratory Sciences, Jordan University of Science and Technology, Irbid, 22110, Jordan
| | - Mohammad A.Y. Alqudah
- Department of Pharmacy Practice and Pharmacotherapeutics, College of Pharmacy, University of Sharjah, Sharjah, United Arab Emirates
- Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
| | - Abeer M. Rababa’h
- Department of Clinical Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
| | - Nasr Alrabadi
- Department of Pharmacology, Faculty of Medicine, Jordan University of Science and Technology, Irbid, 22110, Jordan
| | - Doaa Al-udatt
- Department of Physiology and Biochemistry, Faculty of Medicine, Jordan University of Science and Technology, Irbid, 22110, Jordan
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Quaioto BR, Borçoi AR, Mendes SO, Doblas PC, Dos Santos Vieira T, Arantes Moreno IA, Dos Santos JG, Hollais AW, Olinda AS, de Souza MLM, Freitas FV, Pinheiro JA, Cunha ER, Sorroche BP, Arantes LMRB, Álvares-da-Silva AM. Tobacco use modify exon IV BDNF gene methylation levels in depression. J Psychiatr Res 2023; 159:240-248. [PMID: 36753898 DOI: 10.1016/j.jpsychires.2023.01.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 01/23/2023] [Accepted: 01/26/2023] [Indexed: 01/31/2023]
Abstract
This study aimed to investigate BDNF gene methylation in individuals with depression based on tobacco use. Therefore, 384 adults from southeastern Brazil were recruited to assess depression, socioeconomic status, lifestyle, and methylation by pyrosequencing exon IV promoter region of the BDNF gene. The Generalized Linear Model (GzLM) was used to check the effect of depression, tobacco, and the interaction between depression and tobacco use in methylation levels. In addition, the Kruskal-Wallis test, followed by Dunn's post hoc test, was used to compare methylation levels. Interaction between depression and tobacco use was significant at levels of BDNF methylation in the CpG 5 (p = 0.045), 8 (p = 0.016), 9 (p = 0.042), 10 (p = 0.026) and mean 5-11 (p < 0.001). Dunn's post hoc test showed that individuals with depression and tobacco use compared to those with or without depression who did not use tobacco had lower levels of BDNF methylation in CpG 5, 6, 7, 8, 9, 11, and mean 5-11. Therefore, we suggest that tobacco use appears to interfere with BDNF gene methylation in depressed individuals.
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Affiliation(s)
- Bárbara Risse Quaioto
- Biotechnology Postgraduate Program/RENORBIO, Universidade Federal Do Espírito Santo, Vitória, Espírito Santo, Brazil.
| | - Aline Ribeiro Borçoi
- Biotechnology Postgraduate Program/RENORBIO, Universidade Federal Do Espírito Santo, Vitória, Espírito Santo, Brazil
| | - Suzanny Oliveira Mendes
- Biotechnology Postgraduate Program/RENORBIO, Universidade Federal Do Espírito Santo, Vitória, Espírito Santo, Brazil
| | - Paola Cerbino Doblas
- Biotechnology Postgraduate Program/RENORBIO, Universidade Federal Do Espírito Santo, Vitória, Espírito Santo, Brazil
| | - Tamires Dos Santos Vieira
- Biotechnology Postgraduate Program/RENORBIO, Universidade Federal Do Espírito Santo, Vitória, Espírito Santo, Brazil
| | - Ivana Alece Arantes Moreno
- Biotechnology Postgraduate Program/RENORBIO, Universidade Federal Do Espírito Santo, Vitória, Espírito Santo, Brazil
| | - Joaquim Gasparini Dos Santos
- ICESP, Center for Translational Research in Oncology, Instituto Do Câncer Do Estado de São Paulo, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil; Multiprofessional Residency Program in Adult Oncology Care, Comissão de Residência Multiprofissional/Hospital Das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - André Willian Hollais
- Department of Physiological Sciences, Universidade Federal Do Espírito Santo, Vitória, Espírito Santo, Brazil
| | - Amanda Sgrancio Olinda
- Biotechnology Postgraduate Program/RENORBIO, Universidade Federal Do Espírito Santo, Vitória, Espírito Santo, Brazil
| | | | - Flávia Vitorino Freitas
- Department of Pharmacy and Nutrition, Universidade Federal Do Espírito Santo, Alegre, Espírito Santo, Brazil
| | - Júlia Assis Pinheiro
- Biotechnology Postgraduate Program/RENORBIO, Universidade Federal Do Espírito Santo, Vitória, Espírito Santo, Brazil
| | - Ester Ribeiro Cunha
- Department of Morphology, Universidade Federal Do Espírito Santo, Vitória, Espírito Santo, Brazil
| | - Bruna Pereira Sorroche
- Molecular Oncology Research Center, Hospital Do Câncer de Barretos, Barretos, São Paulo, Brazil
| | | | - Adriana Madeira Álvares-da-Silva
- Biotechnology Postgraduate Program/RENORBIO, Universidade Federal Do Espírito Santo, Vitória, Espírito Santo, Brazil; Department of Morphology, Universidade Federal Do Espírito Santo, Vitória, Espírito Santo, Brazil
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3
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Hemby SE, McIntosh S. Chronic haloperidol administration downregulates select BDNF transcript and protein levels in the dorsolateral prefrontal cortex of rhesus monkeys. Front Psychiatry 2023; 14:1054506. [PMID: 36816400 PMCID: PMC9932326 DOI: 10.3389/fpsyt.2023.1054506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 01/16/2023] [Indexed: 02/05/2023] Open
Abstract
Post-mortem studies in the prefrontal cortex and hippocampal formation from schizophrenia patients have revealed significant disruptions in the expression molecules associated with cytoarchitecture, synaptic structure, function, and plasticity, known to be regulated in part by brain derived neurotrophic factor (BDNF). Interestingly, several studies using postmortem brain tissue from individuals diagnosed with schizophrenia have revealed a significant reduction in BDNF mRNA and protein levels in the dorsolateral prefrontal cortex (DLPFC), hippocampus and related areas; however, differentiating the effects of illness from antipsychotic history has remained difficult. We hypothesized that chronic antipsychotic treatment may contribute to the altered BDNF mRNA and protein expression observed in post-mortem brains of individuals diagnosed with schizophrenia. To address the influence of antipsychotic administration on BDNF expression in the primate brain, rhesus monkeys orally administered haloperidol, clozapine, or vehicle twice daily for 180 days. We found BDNF splice variants 4 and 5 in the DLPFC and variant 2 in the EC were significantly down-regulated following chronic administration of haloperidol. In addition, proBDNF and mature BDNF expression in the DLPFC, but not the EC, were significantly reduced. Based on the known regulation of BDNF expression by BDNF-AS, we assessed the expression of this lncRNA and found expression was significantly upregulated in the DLPFC, but not EC. The results of the present study provide evidence of haloperidol-induced regulation of BDNF mRNA and protein expression in the DLFPC and suggest an important role for BDNF-AS in this regulation. Given the role of BDNF in synaptic plasticity, neuronal survival and maintenance, aberrant expression induced by haloperidol likely has significant ramifications for neuronal populations and circuits in primate cortex.
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Affiliation(s)
- Scott E Hemby
- Department of Basic Pharmaceutical Sciences, Fred Wilson School of Pharmacy, High Point University, High Point, NC, United States
| | - Scot McIntosh
- Department of Basic Pharmaceutical Sciences, Fred Wilson School of Pharmacy, High Point University, High Point, NC, United States
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Vaseghi S, Mostafavijabbari A, Alizadeh MS, Ghaffarzadegan R, Kholghi G, Zarrindast MR. Intricate role of sleep deprivation in modulating depression: focusing on BDNF, VEGF, serotonin, cortisol, and TNF-α. Metab Brain Dis 2023; 38:195-219. [PMID: 36399239 DOI: 10.1007/s11011-022-01124-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 11/06/2022] [Indexed: 11/19/2022]
Abstract
In this review article, we aimed to discuss intricate roles of SD in modulating depression in preclinical and clinical studies. Decades of research have shown the inconsistent effects of SD on depression, focusing on SD duration. However, inconsistent role of SD seems to be more complicated, and SD duration cannot be the only one factor. Regarding this issue, we chose some important factors involved in the effects of SD on cognitive functions and mood including brain-derived neurotrophic factor (BDNF), vascular endothelial growth factor (VEGF), serotonin, cortisol, and tumor necrosis factor-alpha (TNF-α). It was concluded that SD has a wide-range of inconsistent effects on BDNF, VEGF, serotonin, and cortisol levels. It was noted that BDNF diurnal rhythm is significantly involved in the modulatory role of SD in depression. Furthermore, the important role of VEGF in blood-brain barrier permeability which is involved in modulating depression was discussed. It was also noted that there is a negative correlation between cortisol and BDNF that modulates depression. Eventually, it was concluded that TNF-α regulates sleep/wake cycle and is involved in the vulnerability to cognitive and behavioral impairments following SD. TNF-α also increases the permeability of the blood-brain barrier which is accompanied by depressive behavior. In sum, it was suggested that future studies should focus on these mechanisms/factors to better investigate the reasons behind intricate roles of SD in modulating depression.
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Affiliation(s)
- Salar Vaseghi
- Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR, Karaj, Iran.
| | | | - Mohammad-Sadegh Alizadeh
- Department of Cognitive Neuroscience, Institute for Cognitive Science Studies (ICSS), Tehran, Iran
- Department of Cellular and Molecular Sciences, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Reza Ghaffarzadegan
- Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR, Karaj, Iran
| | - Gita Kholghi
- Department of Psychology, Faculty of Human Sciences, Tonekabon Branch, Islamic Azad University, Tonekabon, Iran
| | - Mohammad-Reza Zarrindast
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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5
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Lee Y, Kim KH, Lee BH, Kim YK. Plasma level of brain-derived neurotrophic factor (BDNF) in patients with postpartum depression. Prog Neuropsychopharmacol Biol Psychiatry 2021; 109:110245. [PMID: 33444650 DOI: 10.1016/j.pnpbp.2021.110245] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 12/23/2020] [Accepted: 01/07/2021] [Indexed: 11/19/2022]
Abstract
Postpartum depression occurs in 10-15% of mothers. Brain-derived neurotrophic factor (BDNF) is a nerve growth factor that plays a role in neuroplasticity. We hypothesized that the concentration of BDNF is related to reproduction and childbirth, and that women with postpartum depression show alteration in BDNF level. A total of 104 pregnant women was selected as subjects, and 60 non-pregnant women were selected as normal controls. Symptoms of depression were evaluated in the pregnant study subjects using the diagnostic criteria outlined in the Edinburgh Postnatal Depression Scale (EPDS). The pregnant subjects were divided into three groups of perinatal non-depressed controls (n = 61), postpartum depression-recovery (n = 18), and postpartum depression (n = 25). The plasma concentration of BDNF was higher in the pregnant group than in non-pregnant controls and lower in the postpartum depression group at 6 weeks after delivery than in the perinatal non-depressed group. In the postpartum depression-recovery group, the BDNF concentration increased at 6 weeks after delivery compared to that at 24 weeks of gestation. This study found significant changes in plasma BDNF concentration in depressed pregnant women.
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Affiliation(s)
- Younjung Lee
- Department of Psychiatry, Gyeongsang National University School of Medicine, Gyeongsang National University Hospital, Jinju 52727, Republic of Korea
| | - Kye-Hyun Kim
- Department of Obstetrics & Gynecology, KangBuk Samsung Hospital, College of Medicine, Sungkyunkwan University, Seoul, Republic of Korea
| | - Bun-Hee Lee
- Maum & Maum Psychiatric Clinic, Seoul 02566, Republic of Korea
| | - Yong-Ku Kim
- Department of Psychiatry, Korea University Ansan Hospital, Korea University College of Medicine, Ansan 15355, Republic of Korea.
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Effects of stress associated with academic examination on the kynurenine pathway profile in healthy students. PLoS One 2021; 16:e0252668. [PMID: 34081742 PMCID: PMC8174692 DOI: 10.1371/journal.pone.0252668] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 05/20/2021] [Indexed: 12/16/2022] Open
Abstract
The effects of stress on the neuroendocrine, central nervous and immune systems are extremely complex. The kynurenine pathway (KP) of the tryptophan metabolism is recognised as a cross-link between the neuroendocrine- and immune systems. However, the effects of acute stress from everyday life on KP activation have not yet been studied. This study aims to investigate changes in the levels of the KP neuroactive metabolites and cytokines in response to stress triggered by academic examinations. Ninety-two healthy first year medical students benevolently participated in the study. Parameters were measured pre- examination, which is considered to be a high-stress period, and post-examination, as a low-stress period. Stress induced by academic examinations significantly increases the perceived stress scores (p<0.001), serum cortisol levels (p<0.001) and brain-derived neurotrophic factor (BDNF) levels (p<0.01). It decreased IL-10 levels (p<0.05) but had no effect on IL-6 and TNF-alpha levels. Only the KP neuroactive metabolite, 3-hydroxykynurenine (3-HK) significantly increased (p<0.01) in the post-examination period. In addition, the stress scores positively correlated with the levels of cortisol (r2 = 0.297, p<0.01) at post examination. Acute stress triggered by academic examinations increases cortisol and BDNF production and suppresses the anti-inflammatory cytokine, IL-10, but did not increase significantly the levels of other pro-inflammatory cytokines, tryptophan, kynurenine and downstream KP metabolites. The concomitant increased levels of BDNF under the duress of acute examination stress appear to limit the levels pro-inflammatory markers, which may attenuate the action of cortisol and the neuroinflammatory branch of the KP.
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Claudino FCDA, Gonçalves L, Schuch FB, Martins HRS, da Rocha NS. The Effects of Individual Psychotherapy in BDNF Levels of Patients With Mental Disorders: A Systematic Review. Front Psychiatry 2020; 11:445. [PMID: 32508690 PMCID: PMC7249851 DOI: 10.3389/fpsyt.2020.00445] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Accepted: 05/01/2020] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Brain-derived Neurotrophic Factor (BDNF) is considered the main cerebral neurotrophin and is produced in the central neural system and peripherals. Its levels are reduced in patients with several psychiatric disorders, but it is unclear if the response to psychotherapy can alter its concentration. OBJECTIVE To carry out a systematic review evaluating the effects of individual psychotherapy in BDNF levels in patients with mental disorders. METHODS The databases PubMed, EMBASE, PsycArticles, SciELO, Web of Science, and CENTRAL; the last search was performed on October 2019 for trials evaluating the effects of individual psychotherapy in BDNF levels in adults with mental disorders. PROSPERO registration: CRD42018108144. RESULTS Eight of 293 studies were included. A rise in BDNF levels was observed in depressive patients when psychotherapy was combined with medication. Patients with post-traumatic stress disorder (PTSD) who responded to therapy presented a raise in BDNF levels mostly when combined with physical activity. There was a rise in BDNF levels in those who responded to psychotherapy in patients with bulimia, in borderline patients, and in insomniacs. CONCLUSIONS The BDNF seems to present variations after psychotherapy especially in patients with bulimia, PTSD, insomnia, and borderline. These subjects also have symptom reduction. Thereby, BDNF could be a supplemental tool to analyze the success to psychotherapy. BDNF levels in patients with major depression after therapy are still controversial and the short follow-up of most studies is a limiting factor.
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Affiliation(s)
- Felipe Cesar de Almeida Claudino
- Center of Clinical Research and Center of Experiamental Research, Hospital de Clínicas de Porto Alegre (HCPA), Post-Graduation Program in Psychiatry and Behavioral Sciences, Federal University of Rio Grande do SUl (UFRGS), Porto Alegre, Brazil
| | - Leonardo Gonçalves
- Center of Clinical Research and Center of Experiamental Research, Hospital de Clínicas de Porto Alegre (HCPA), Post-Graduation Program in Psychiatry and Behavioral Sciences, Federal University of Rio Grande do SUl (UFRGS), Porto Alegre, Brazil
| | - Felipe Barreto Schuch
- Department of Sports Methods and Techniques, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
| | - Hugo Roberto Sampaio Martins
- Department of Internal Medicine, Federal University of Health Sciences of Porto Alegre (UFCSPA), Porto Alegre, Brazil
| | - Neusa Sica da Rocha
- Center of Clinical Research and Center of Experiamental Research, Hospital de Clínicas de Porto Alegre (HCPA), Post-Graduation Program in Psychiatry and Behavioral Sciences, Federal University of Rio Grande do SUl (UFRGS), Porto Alegre, Brazil
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Zeitler S, Ye L, Andreyeva A, Schumacher F, Monti J, Nürnberg B, Nowak G, Kleuser B, Reichel M, Fejtová A, Kornhuber J, Rhein C, Friedland K. Acid sphingomyelinase - a regulator of canonical transient receptor potential channel 6 (TRPC6) activity. J Neurochem 2019; 150:678-690. [PMID: 31310676 DOI: 10.1111/jnc.14823] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 07/02/2019] [Accepted: 07/04/2019] [Indexed: 12/28/2022]
Abstract
Recent investigations propose the acid sphingomyelinase (ASM)/ceramide system as a novel target for antidepressant action. ASM catalyzes the breakdown of the abundant membrane lipid sphingomyelin to the lipid messenger ceramide. This ASM-induced lipid modification induces a local shift in membrane properties, which influences receptor clustering and downstream signaling. Canonical transient receptor potential channels 6 (TRPC6) are non-selective cation channels located in the cell membrane that play an important role in dendritic growth, synaptic plasticity and cognition in the brain. They can be activated by hyperforin, an ingredient of the herbal remedy St. John's wort for treatment of depression disorders. Because of their role in the context of major depression, we investigated the crosstalk between the ASM/ceramide system and TRPC6 ion channels in a pheochromocytoma cell line 12 neuronal cell model (PC12 rat pheochromocytoma cell line). Ca2+ imaging experiments indicated that hyperforin-induced Ca2+ influx through TRPC6 channels is modulated by ASM activity. While antidepressants, known as functional inhibitors of ASM activity, reduced TRPC6-mediated Ca2+ influx, extracellular application of bacterial sphingomyelinase rebalanced TRPC6 activity in a concentration-related way. This effect was confirmed in whole-cell patch clamp electrophysiology recordings. Lipidomic analyses revealed a decrease in very long chain ceramide/sphingomyelin molar ratio after ASM inhibition, which was connected with changes in the abundance of TRPC6 channels in flotillin-1-positive lipid rafts as visualized by western blotting. Our data provide evidence that the ASM/ceramide system regulates TRPC6 channels likely by controlling their recruitment to specific lipid subdomains and thereby fine-tuning their physical properties.
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Affiliation(s)
- Stefanie Zeitler
- Department of Psychiatry and Psychotherapy, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Department of Chemistry and Pharmacy, Molecular and Clinical Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Lian Ye
- Department of Chemistry and Pharmacy, Molecular and Clinical Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Aksana Andreyeva
- Department of Chemistry and Pharmacy, Molecular and Clinical Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Fabian Schumacher
- Department of Toxicology, Faculty of Mathematics and Natural Science, Institute of Nutritional Science, University of Potsdam, Nuthetal, Germany.,Department of Molecular Biology, University Clinic, University of Duisburg-Essen, Essen, Germany
| | - Juliana Monti
- Department of Psychiatry and Psychotherapy, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Bernd Nürnberg
- Department of Pharmacology and Experimental Therapy, Institute of Experimental and Clinical Pharmacology and Toxicology, Eberhard Karls University Hospitals and Clinics and Interfaculty Center of Pharmacogenomics and Drug Research (ICePhA), Tübingen, Germany
| | - Gabriel Nowak
- Department of Pharmacobiology, Jagiellonian University Medical College, Kraków, Poland.,Institute of Pharmacology, Polish Academy of Sciences, Kraków, Poland
| | - Burkhard Kleuser
- Department of Toxicology, Faculty of Mathematics and Natural Science, Institute of Nutritional Science, University of Potsdam, Nuthetal, Germany
| | - Martin Reichel
- Department of Psychiatry and Psychotherapy, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Anna Fejtová
- Department of Psychiatry and Psychotherapy, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Johannes Kornhuber
- Department of Psychiatry and Psychotherapy, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Cosima Rhein
- Department of Psychiatry and Psychotherapy, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Kristina Friedland
- Department of Chemistry and Pharmacy, Molecular and Clinical Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Institute for Pharmacy and Biochemistry, Pharmacology and Toxicology, Johannes-Gutenberg University Mainz, Mainz, Germany
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Miranda M, Morici JF, Zanoni MB, Bekinschtein P. Brain-Derived Neurotrophic Factor: A Key Molecule for Memory in the Healthy and the Pathological Brain. Front Cell Neurosci 2019; 13:363. [PMID: 31440144 PMCID: PMC6692714 DOI: 10.3389/fncel.2019.00363] [Citation(s) in RCA: 674] [Impact Index Per Article: 134.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Accepted: 07/25/2019] [Indexed: 12/13/2022] Open
Abstract
Brain Derived Neurotrophic Factor (BDNF) is a key molecule involved in plastic changes related to learning and memory. The expression of BDNF is highly regulated, and can lead to great variability in BDNF levels in healthy subjects. Changes in BDNF expression are associated with both normal and pathological aging and also psychiatric disease, in particular in structures important for memory processes such as the hippocampus and parahippocampal areas. Some interventions like exercise or antidepressant administration enhance the expression of BDNF in normal and pathological conditions. In this review, we will describe studies from rodents and humans to bring together research on how BDNF expression is regulated, how this expression changes in the pathological brain and also exciting work on how interventions known to enhance this neurotrophin could have clinical relevance. We propose that, although BDNF may not be a valid biomarker for neurodegenerative/neuropsychiatric diseases because of its disregulation common to many pathological conditions, it could be thought of as a marker that specifically relates to the occurrence and/or progression of the mnemonic symptoms that are common to many pathological conditions.
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Affiliation(s)
- Magdalena Miranda
- Laboratory of Memory Research and Molecular Cognition, Institute for Cognitive and Translational Neuroscience, Instituto de Neurología Cognitiva, CONICET, Universidad Favaloro, Buenos Aires, Argentina
| | - Juan Facundo Morici
- Laboratory of Memory Research and Molecular Cognition, Institute for Cognitive and Translational Neuroscience, Instituto de Neurología Cognitiva, CONICET, Universidad Favaloro, Buenos Aires, Argentina
| | - María Belén Zanoni
- Laboratory of Memory Research and Molecular Cognition, Institute for Cognitive and Translational Neuroscience, Instituto de Neurología Cognitiva, CONICET, Universidad Favaloro, Buenos Aires, Argentina
| | - Pedro Bekinschtein
- Laboratory of Memory Research and Molecular Cognition, Institute for Cognitive and Translational Neuroscience, Instituto de Neurología Cognitiva, CONICET, Universidad Favaloro, Buenos Aires, Argentina
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Reyes-Garcés N, Diwan M, Boyacı E, Gómez-Ríos GA, Bojko B, Nobrega JN, Bambico FR, Hamani C, Pawliszyn J. In Vivo Brain Sampling Using a Microextraction Probe Reveals Metabolic Changes in Rodents after Deep Brain Stimulation. Anal Chem 2019; 91:9875-9884. [DOI: 10.1021/acs.analchem.9b01540] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Nathaly Reyes-Garcés
- Department of Chemistry, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
| | - Mustansir Diwan
- Research Imaging Centre, Centre for Addiction and Mental Health, Toronto, Ontario Canada
| | - Ezel Boyacı
- Department of Chemistry, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
| | - German A. Gómez-Ríos
- Department of Chemistry, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
| | - Barbara Bojko
- Department of Chemistry, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
| | - José N. Nobrega
- Research Imaging Centre, Centre for Addiction and Mental Health, Toronto, Ontario Canada
| | - Francis R. Bambico
- Research Imaging Centre, Centre for Addiction and Mental Health, Toronto, Ontario Canada
| | - Clement Hamani
- Research Imaging Centre, Centre for Addiction and Mental Health, Toronto, Ontario Canada
| | - Janusz Pawliszyn
- Department of Chemistry, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
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Influence of Tacrolimus on Depressive-Like Behavior in Diabetic Rats Through Brain-Derived Neurotrophic Factor Regulation in the Hippocampus. Neurotox Res 2019; 36:396-410. [PMID: 31201731 DOI: 10.1007/s12640-019-00062-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 05/08/2019] [Accepted: 05/09/2019] [Indexed: 12/20/2022]
Abstract
The neurotoxicity of immunosuppressive agents and diabetes mellitus are known risk factors of neurological complications in kidney transplant recipients. The aim of the present study was to investigate the influence of tacrolimus on brain-derived neurotrophic factor (BDNF), the critical protein for maintenance of neuronal functions, in the hippocampus in a diabetic condition. A diabetic rat model was established by a single streptozotocin injection (60 mg/kg). Control and diabetic rats then received daily tacrolimus (1.5 mg/kg per day) injections for 6 weeks. BDNF expression in the hippocampus was examined in the dentate gyrus (DG) and CA3 region using immunohistochemistry. There was a significant decrease of BDNF expression in the DG and CA3 region in tacrolimus-treated and diabetic rats compared with that of the control group injected with vehicle only. However, there was no difference in BDNF expression between the two experimental groups. Tacrolimus treatment in diabetic rats further decreased the BDNF expression level in the DG and CA3 region. Interestingly, mossy fiber sprouting, demonstrated by prominent punctate immunolabeling of BDNF with synaptoporin, was observed in the diabetic group treated with tacrolimus, which localized at the stratum oriens of the CA3 region. These data suggest that tacrolimus treatment or a diabetic condition decreases BDNF expression in the hippocampus, and that tacrolimus treatment in the diabetic condition further injures the CA3 region of the hippocampus. In addition to BDNF expression, decreased locomotor activity and evident depressive behavior were observed in tacrolimus-treated diabetic rats. Moreover, there were significant decreases of the mRNA levels of γ-aminobutyric acid and serotonin receptors in the diabetic hippocampus with tacrolimus treatment. This finding suggests that tacrolimus treatment may cause further psychiatric and neurological complications for patients with diabetes, and should thus be used with caution.
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12
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Algaidi SA, Eldomiaty MA, Elbastwisy YM, Almasry SM, Desouky MK, Elnaggar AM. Effect of voluntary running on expression of myokines in brains of rats with depression. Int J Immunopathol Pharmacol 2019; 33:2058738419833533. [PMID: 30834799 PMCID: PMC6407323 DOI: 10.1177/2058738419833533] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
This study aimed to demonstrate the histopathology and immunoexpression of exercise-derived myokines in dentate gyrus (DG), medial prefrontal cortex (mPFC) and cerebellum of depressed Wistar rats during depression and after practising voluntary running. Depression was developed by forced swimming for 2 weeks. Voluntary running was performed by voluntary running for 3 weeks. Brain sections were processed and immunostained to detect brain-derived neurotrophic factor (BDNF), macrophage migration inhibitory factor (MIF), vascular endothelial growth factor (VEGF) and interleukin-6 (IL-6). ImageJ software was used to measure the optical density (OD). BDNF was expressed in neurons in DG, mPFC and granular and Purkinje cells in cerebellum. MIF was expressed in neurons of sub-granular zone in DG, mPFC and Purkinje cells. VEGF was expressed in many neurons in DG, mPFC and Purkinje cells. IL-6 was expressed in some neurons in DG, in neuropil of mPFC and in Purkinje cells. In depression, the OD of studied myokines significantly decreased in all examined areas. After voluntary running, the OD of myokines significantly increased in all areas. This study defines the immunohistochemical expression of myokines in brain areas in depression and after voluntary running and reveals the involvement of the mPFC and cerebellum in the pathophysiology of depression.
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Affiliation(s)
- Sami A Algaidi
- 1 Department of Anatomy, Faculty of Medicine, Taibah University, Almadinah Almunawarah, Saudi Arabia
| | - Magda A Eldomiaty
- 1 Department of Anatomy, Faculty of Medicine, Taibah University, Almadinah Almunawarah, Saudi Arabia.,2 Department of Anatomy, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Yasser M Elbastwisy
- 1 Department of Anatomy, Faculty of Medicine, Taibah University, Almadinah Almunawarah, Saudi Arabia.,3 Department of Anatomy, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Shaima M Almasry
- 1 Department of Anatomy, Faculty of Medicine, Taibah University, Almadinah Almunawarah, Saudi Arabia.,3 Department of Anatomy, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Maha K Desouky
- 1 Department of Anatomy, Faculty of Medicine, Taibah University, Almadinah Almunawarah, Saudi Arabia.,4 Department of Anatomy, Faculty of Medicine, Minia University, Minia, Egypt
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13
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Howell S, Griesbach GS. The interplay between neuroendocrine and sleep alterations following traumatic brain injury. NeuroRehabilitation 2019; 43:327-345. [PMID: 30347624 DOI: 10.3233/nre-182483] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND Sleep and endocrine disruptions are prevalent after traumatic brain injury (TBI) and are likely to contribute to morbidity. OBJECTIVE To describe the interaction between sleep and hormonal regulation following TBI and elucidate the impact that alterations of these systems have on cognitive responses during the posttraumatic chronic period. METHODS Review of preclinical and clinical literature describing long-lasting endocrine dysregulation and sleep alterations following TBI. The bidirectional relationship between sleep and hormones is described. Literature describing co-occurrence between sleep-wake disturbances and hormonal dysregulation will be presented. Review of literature describing cognitive effects of seep and hormones. The cognitive and functional impact of sleep disturbances and hormonal dysregulation is discussed within the context of TBI. RESULTS/CONCLUSIONS Sleep and hormonal alterations impact cognitive and functional outcome after TBI. Diagnosis and treatment of these disturbances will impact recovery following TBI and should be considered in the post-acute rehabilitative setting.
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Affiliation(s)
| | - Grace S Griesbach
- Centre for Neuro Skills, Encino, CA, USA.,Department of Neurosurgery, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
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14
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Tsai SJ, Lin E, Kuo PH, Liu YL, Yang A. A gene-based analysis of variants in the Brain-derived Neurotrophic Factor gene with psychological distress in a Taiwanese population. TAIWANESE JOURNAL OF PSYCHIATRY 2019. [DOI: 10.4103/tpsy.tpsy_6_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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15
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Colitti M, Sgorlon S, Licastro D, Stefanon B. Differential expression of miRNAs in milk exosomes of cows subjected to group relocation. Res Vet Sci 2018; 122:148-155. [PMID: 30504000 DOI: 10.1016/j.rvsc.2018.11.024] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 11/23/2018] [Accepted: 11/26/2018] [Indexed: 12/14/2022]
Abstract
This study examined microRNA (miRNAs) expression and regulatory patterns from milk exosomes of cows experienced group relocation, a common husbandry practice during the lactation period and used as a spontaneous model of stress. Total RNA from milk exosome samples was collected from 3 cows that showed an increased milk cortisol (HRC) after relocation (T2 vs T1) and 3 cows that did not show cortisol increase (LRC). A total of 69 known miRNAs were identified. Thirteen miRNAs were consistently down-regulated at T2 in comparison to T1, such as miR-2904-1, miR-142, miR-2284x and miR-30b-3p. Only two miRNAs, miR-2284z and miR-146a were significantly different between LRC and HRC group. Functional enrichment analyses highlighted that glucocorticoid receptor signaling and neurotrophic factor mediated TRK receptor signaling were among the biological pathways affected by differentially expressed miRNA target genes. Mir-135a-5p and miR-320a were involved in both biological pathways. miR-142-5p, miR-142-3p, miR-30b-5p and miR-320a shared the same target genes belonging to the RAS superfamily of small GTP-binding proteins (RAC1, RAP1A and RASA1), involved in neurotrophin-mediated cell survival. MiR-142, miR-135 and miR-320a in milk exosomes were the most responsive to group relocation of cows.
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Affiliation(s)
- Monica Colitti
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Italy.
| | - Sandy Sgorlon
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Italy
| | | | - Bruno Stefanon
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Italy
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16
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Petrović J, Stanić D, Bulat Z, Puškaš N, Labudović-Borović M, Batinić B, Mirković D, Ignjatović S, Pešić V. Acth-induced model of depression resistant to tricyclic antidepressants: Neuroendocrine and behavioral changes and influence of long-term magnesium administration. Horm Behav 2018; 105:1-10. [PMID: 30025718 DOI: 10.1016/j.yhbeh.2018.07.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 07/14/2018] [Accepted: 07/14/2018] [Indexed: 11/20/2022]
Abstract
Magnesium (Mg), is not only a modulator of the glutamatergic NMDA receptors' affinity, it also prevents HPA axis hyperactivity, thus possibly being implicated in neurobiological features of mood disorders. Further uncovering of molecular mechanisms underlying magnesium's proposed effects is needed due to the recent shift in research of treatment resistant depression (TRD) towards glutamatergic pathways. Here, we applied Mg via drinking water for 28 days (50 mg/kg/day), in ACTH-treated rats, an established animal model of depression resistant to tricyclic antidepressants. Using this model in male rats we measured (1) changes in hippocampal neurogenesis and behavioral alterations, (2) adrenal hormones response to acute stress challenge and (3) levels of biometals involved in regulation of monoamines turnover in rat prefrontal cortex. Our results support beneficial behavioral impact of Mg in TRD model together with increased hippocampal neurogenesis and BDNF expression. Furthermore, Mg prevented ACTH-induced disruption in HPA axis function, by normalizing the levels of plasma ACTH, corticosterone and interleukin-6, and by increasing the peripheral release of adrenaline, noradrenaline and serotonin after the acute stress challenge. Finally, the influence on copper/zinc ratio suggested probable magnesium's involvement in monoamine turnover in PFC. Our findings provide further insights into the possible pathways implicated in the behavioral modulation effects of Mg, as well as its central and peripheral effects in ACTH-induced TRD model. Thus, further investigation of molecular signaling related to the glutamatergic transmission and role of Mg, could reveal prospects to novel treatment strategies that could be of particular importance for patients suffering from TRD.
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Affiliation(s)
- Jelena Petrović
- Department of Physiology, University of Belgrade, Faculty of Pharmacy, Serbia
| | - Dušanka Stanić
- Department of Physiology, University of Belgrade, Faculty of Pharmacy, Serbia
| | - Zorica Bulat
- Department of Toxicology "Akademik Danilo Soldatović", University of Belgrade, Faculty of Pharmacy, Serbia
| | - Nela Puškaš
- Institute of Histology and Embryology "Aleksandar Đ. Kostić", School of Medicine, University of Belgrade, Serbia
| | - Milica Labudović-Borović
- Institute of Histology and Embryology "Aleksandar Đ. Kostić", School of Medicine, University of Belgrade, Serbia
| | - Bojan Batinić
- Department of Physiology, University of Belgrade, Faculty of Pharmacy, Serbia
| | - Duško Mirković
- Department of Medical Biochemistry, University of Belgrade, Faculty of Pharmacy, Serbia
| | - Svetlana Ignjatović
- Department of Medical Biochemistry, University of Belgrade, Faculty of Pharmacy, Serbia
| | - Vesna Pešić
- Department of Physiology, University of Belgrade, Faculty of Pharmacy, Serbia.
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17
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Morris G, Reiche EMV, Murru A, Carvalho AF, Maes M, Berk M, Puri BK. Multiple Immune-Inflammatory and Oxidative and Nitrosative Stress Pathways Explain the Frequent Presence of Depression in Multiple Sclerosis. Mol Neurobiol 2018; 55:6282-6306. [PMID: 29294244 PMCID: PMC6061180 DOI: 10.1007/s12035-017-0843-5] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 12/14/2017] [Indexed: 12/21/2022]
Abstract
Patients with a diagnosis of multiple sclerosis (MS) or major depressive disorder (MDD) share a wide array of biological abnormalities which are increasingly considered to play a contributory role in the pathogenesis and pathophysiology of both illnesses. Shared abnormalities include peripheral inflammation, neuroinflammation, chronic oxidative and nitrosative stress, mitochondrial dysfunction, gut dysbiosis, increased intestinal barrier permeability with bacterial translocation into the systemic circulation, neuroendocrine abnormalities and microglial pathology. Patients with MS and MDD also display a wide range of neuroimaging abnormalities and patients with MS who display symptoms of depression present with different neuroimaging profiles compared with MS patients who are depression-free. The precise details of such pathology are markedly different however. The recruitment of activated encephalitogenic Th17 T cells and subsequent bidirectional interaction leading to classically activated microglia is now considered to lie at the core of MS-specific pathology. The presence of activated microglia is common to both illnesses although the pattern of such action throughout the brain appears to be different. Upregulation of miRNAs also appears to be involved in microglial neurotoxicity and indeed T cell pathology in MS but does not appear to play a major role in MDD. It is suggested that the antidepressant lofepramine, and in particular its active metabolite desipramine, may be beneficial not only for depressive symptomatology but also for the neurological symptoms of MS. One clinical trial has been carried out thus far with, in particular, promising MRI findings.
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Affiliation(s)
- Gerwyn Morris
- IMPACT Strategic Research Centre, School of Medicine, Deakin University, Barwon Health, Geelong, Australia
| | - Edna Maria Vissoci Reiche
- Department of Pathology, Clinical Analysis, and Toxicology, Health Sciences Center, State University of Londrina, Londrina, Paraná, Brazil
| | - Andrea Murru
- Bipolar Disorders Program, Hospital Clínic Barcelona, IDIBAPS, CIBERSAM, Barcelona, Spain
| | - André F Carvalho
- Department of Clinical Medicine and Translational Psychiatry Research Group, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Michael Maes
- Department of Psychiatry, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Michael Berk
- IMPACT Strategic Research Centre, School of Medicine, Deakin University, Barwon Health, Geelong, Australia
- Department of Psychiatry, Medical University Plovdiv, Plovdiv, Bulgaria
- Department of Psychiatry, Faculty of Medicine, State University of Londrina, Londrina, Brazil
- Revitalis, Waalre, The Netherlands
- Orygen - The National Centre of Excellence in Youth Mental Health, The Department of Psychiatry and the Florey Institute for Neuroscience and Mental Health, The University of Melbourne, Parkville, Australia
| | - Basant K Puri
- Department of Medicine, Imperial College London, Hammersmith Hospital, London, UK.
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18
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Harnish SM, Rodriguez AD, Blackett DS, Gregory C, Seeds L, Boatright JH, Crosson B. Aerobic Exercise as an Adjuvant to Aphasia Therapy: Theory, Preliminary Findings, and Future Directions. Clin Ther 2017; 40:35-48.e6. [PMID: 29277374 DOI: 10.1016/j.clinthera.2017.12.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 12/05/2017] [Accepted: 12/05/2017] [Indexed: 01/09/2023]
Abstract
PURPOSE This study investigated whether participation in aerobic exercise enhances the effects of aphasia therapy, and the degree to which basal serum brain-derived neurotropic factor (BDNF) concentrations fluctuate after the beginning of aerobic exercise or stretching activities in individuals with poststroke aphasia. METHODS The study used a single-subject, multiple-baseline design. Seven individuals with chronic poststroke aphasia participated in 2 Blocks of aphasia therapy: aphasia therapy alone (Block 1), followed by aphasia therapy with the addition of aerobic activity via bicycle ergometer (n = 5) or stretching (n = 2) (Block 2). Serum BDNF concentrations from blood draws were analyzed in 4 participants who exercised and in 1 participant who stretched. FINDINGS Three of the five exercise participants demonstrated larger Tau-U effects when aphasia therapy was paired with aerobic exercise, whereas 1 of the 2 stretching participants demonstrated a larger effect size when aphasia therapy was paired with stretching. Group-level comparisons revealed a greater overall increase in effect size in the aerobic exercise group, as indicated by differences in Tau-U weighted means. BDNF data showed that all 4 exercise participants demonstrated a decrease in BDNF concentrations during the first 6 weeks of exercise and an increase in BDNF levels near or at baseline during the last 6 weeks of exercise. The stretching participant did not show the same pattern. IMPLICATIONS Additional research is needed to understand the mechanism of effect and to identify the factors that mediate response to exercise interventions, specifically the optimal dose of exercise and timing of language intervention with exercise. ClinicalTrials.gov identifier: NCT01113879.
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Affiliation(s)
- Stacy M Harnish
- Department of Speech and Hearing Science, The Ohio State University, Columbus, Ohio.
| | - Amy D Rodriguez
- Atlanta VA RR&D Center for Visual and Neurocognitive Rehabilitation, Atlanta, Georgia
| | | | - Christopher Gregory
- Department of Health Sciences and Research, Medical University of South Carolina, Charleston, South Carolina
| | - Lauren Seeds
- Department of Physical Therapy, Brooks Rehabilitation, Jacksonville, Florida
| | - Jeffrey H Boatright
- Atlanta VA RR&D Center for Visual and Neurocognitive Rehabilitation, Atlanta, Georgia; Department of Ophthalmology, Emory University School of Medicine, Atlanta, Georgia
| | - Bruce Crosson
- Atlanta VA RR&D Center for Visual and Neurocognitive Rehabilitation, Atlanta, Georgia; Department of Neurology, Emory University School of Medicine, Atlanta, Georgia; Department of Psychology, Georgia State University, Atlanta, Georgia
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19
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Huang X, Huang X, Zhou Y, He H, Mei F, Sun B, Soares JC, Yang Zhang X. Association of serum BDNF levels with psychotic symptom in chronic patients with treatment-resistant depression in a Chinese Han population. Psychiatry Res 2017; 257:279-283. [PMID: 28783576 DOI: 10.1016/j.psychres.2017.07.076] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 07/06/2017] [Accepted: 07/31/2017] [Indexed: 12/18/2022]
Abstract
The neurotrophic hypothesis of depression is supported by consistent findings of lower serum BDNF levels in depressed patients. Increasing evidence shows different clinical characteristics of patients with psychotic major depression versus nonpsychotic major depression. However, the possible association between BDNF and psychotic symptoms in depression has not been investigated. We recruited 90 treatment-resistant depression (TRD) patients and 90 gender- and age-matched healthy control subjects and examined serum BDNF in both groups. Patients' depressive symptoms were assessed using the 17-item Hamilton Depression Rating Scale (HDRS-17), and psychopathological symptoms by the 18-item Brief Psychiatric Rating Scale (BPRS-18). Our results showed that BDNF levels were significantly lower in patients than controls. Correlation analysis revealed a significantly positive correlation between BDNF and the thought disturbance subscale of BPRS-18 (p < 0.05), and a trend toward a significantly positive correlation between BDNF and the BPRS-18 total score (p = 0.06). Stepwise multiple regression analyses confirmed BDNF as the influencing factor for the thought disturbance subscales of the BPRS-18. Our findings suggest that BDNF may be involved in the pathophysiology of TRD, and its associated psychotic symptoms, especially thought disturbance.
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Affiliation(s)
- Xingbing Huang
- Department of Psychiatry, The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China
| | - Xiong Huang
- Department of Psychiatry, The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China.
| | - Yanling Zhou
- Department of Psychiatry, The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China
| | - Hongbo He
- Department of Psychiatry, The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China
| | - Fang Mei
- Department of Psychiatry, The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China
| | - Bin Sun
- Department of Psychiatry, The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China
| | - Jair C Soares
- Department of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Xiang Yang Zhang
- Psychiatry Research Center, Beijing HuiLongGuan Hospital, Peking University, Beijing, China.
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20
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Influence of catch up growth on spatial learning and memory in a mouse model of intrauterine growth restriction. PLoS One 2017; 12:e0177468. [PMID: 28542302 PMCID: PMC5443512 DOI: 10.1371/journal.pone.0177468] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Accepted: 04/27/2017] [Indexed: 01/21/2023] Open
Abstract
Background Intrauterine growth restriction (IUGR) and rapid postnatal weight gain or catch up growth (CUG) increase the susceptibility to metabolic syndrome during adult life. Longitudinal studies have also revealed a high incidence of learning difficulties in children with IUGR. The aim of the present study was to investigate the effect of nutrition and CUG on learning memory in an IUGR animal model. We hypothesized that synaptic protein expression and transcription, an essential mechanism for memory consolidation, might be affected by intrauterine undernutrition. Methods IUGR was induced by 50% maternal caloric undernutrition throughout late gestation. During the suckling period, dams were either fed ad libitum or food restricted. The pups were divided into: Normal prenatal diet-Normal postnatal diet (NN), Restricted prenatal diet- Normal postnatal diet + catch up growth (RN+), Normal prenatal diet-Restricted postnatal diet (NR) and Restricted prenatal diet-Restricted postnatal diet (RR). At 4 weeks of age, memory was assessed via a water maze test. To evaluate synaptic function, 2 specific synaptic proteins (postsynaptic density-95 [PSD95], synaptophysin) as well as insulin receptors (IR) were tested by Western Blot and quantitative polymerase chain reaction (qPCR). Brain-derived neurotrophic factor and serum insulin levels were also studied. Results and conclusions The RN+ group presented a learning curve similar to the NN animals. The RR animals without CUG showed learning disabilities. PSD95 was lower in the RR group than in the NN and RN+ mice. In contrast, synaptophysin was similar in all groups. IR showed an inverse expression pattern to that of the PSD95. In conclusion, perinatal nutrition plays an important role in learning. CUG after a period of prenatal malnutrition seems to improve learning skills. The functional alterations observed might be related to lower PSD95 activity and a possible dysfunction in the hormone regulation of synaptic plasticity.
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21
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He SC, Zhang YY, Zhan JY, Wang C, Du XD, Yin GZ, Cao B, Ning YP, Soares JC, Zhang XY. Burnout and cognitive impairment: Associated with serum BDNF in a Chinese Han population. Psychoneuroendocrinology 2017; 77:236-243. [PMID: 28119229 DOI: 10.1016/j.psyneuen.2017.01.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 12/08/2016] [Accepted: 01/04/2017] [Indexed: 12/20/2022]
Abstract
BACKGROUND Some studies have demonstrated that subjects with chronic burnout showed cognitive impairments; however, cognitive performance in burnout has been under-investigated. Increasing evidence show that brain-derived neurotrophic factor (BDNF) plays a critical role in cognitive function. We hypothesized that decreased BDNF may be associated with cognitive impairments in burnout, which has not been investigated yet. The aim of the present study was to examine the association of BDNF with cognitive impairment in burnout. METHOD Using a cross-sectional design, 712 healthy subjects were recruited from a general hospital and they were all measured with the Maslach Burnout Inventory (MBI). We assessed part of subjects on the repeatable battery for the assessment of neuropsychological status (RBANS) (n=192) and serum BDNF levels (n=127). RESULTS 30.5% of the subjects had burnout. Compared to those non-burnout subjects, the burnout subjects were younger, had significant lower BDNF levels (p=0.003) and scored lower on immediate memory, RBANS total score and attention (all p<0.05). Interestingly, after the Bonferroni correction, there were negative correlations between BDNF and MBI total score or reduced professional accomplishment (PA). Moreover, BDNF was positively associated with immediate memory, attention and RBANS total score. Further multiple regression analysis showed that BDNF was an independent contributor to the RBANS total score and attention, and BDNF and MBI depersonalization (DP) were independent contributors to immediate memory. In addition, there was mediating effect of BDNF in the relation between burnout and cognitive impairments. CONCLUSIONS Our results suggest that burnout is associated with significant cognitive impairments and decreased BDNF. Moreover, decreased BDNF is associated with cognitive impairments in burnout.
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Affiliation(s)
- S C He
- School of Psychological and Cognitive Sciences, Peking University, Beijing, China.
| | - Y Y Zhang
- Suzhou Psychiatric Hospital, The Affiliated Guangji Hospital of Soochow University, Suzhou, Jiangsu, China
| | - J Y Zhan
- School of Psychological and Cognitive Sciences, Peking University, Beijing, China
| | - C Wang
- School of Psychological and Cognitive Sciences, Peking University, Beijing, China
| | - X D Du
- Suzhou Psychiatric Hospital, The Affiliated Guangji Hospital of Soochow University, Suzhou, Jiangsu, China
| | - G Z Yin
- Suzhou Psychiatric Hospital, The Affiliated Guangji Hospital of Soochow University, Suzhou, Jiangsu, China
| | - B Cao
- Department of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Y P Ning
- The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China
| | - J C Soares
- Department of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - X Y Zhang
- Department of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at Houston, Houston, TX, USA; Psychiatry Research Center, Beijing HuiLongGuan hospital, Peking University, Beijing, China.
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22
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Zhou D, Zhang Z, Liu L, Li C, Li M, Yu H, Cai X, Sun X, Shen X, Wang J, Geng J, Wang C, Shi Y. The antidepressant-like effects of biperiden may involve BDNF/TrkB signaling-mediated BICC1 expression in the hippocampus and prefrontal cortex of mice. Pharmacol Biochem Behav 2017; 157:47-57. [PMID: 28216067 DOI: 10.1016/j.pbb.2017.02.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 02/13/2017] [Accepted: 02/15/2017] [Indexed: 12/28/2022]
Abstract
Preclinical and clinical studies suggest that neuronal muscarinic acetylcholine receptor (M-AchR) antagonists have antidepressant-like properties. Despite the recent interest in bicaudal C homolog 1 gene (BICC1) as a target for the treatment of depression, the upstream signaling molecules that regulate BICC1 are unknown, and very few studies have addressed the involvement of BICC1 in the antidepressant-like effects of the selective M1-AchR inhibitor, biperiden. Growing evidence indicates that activation of brain-derived neurotrophic factor (BDNF)/tropomyosin-related kinase receptor B (TrkB) signaling may be involved in antidepressant-like activities. In this study, we investigated the role of BDNF/TrkB signaling in the regulation of BICC1 expression in the chronic unpredictable stress (CUS) mouse model of depression. Furthermore, we also examined whether BDNF/TrkB signaling contributes to the antidepressant-like effects of biperiden via down-regulation of BICC1 in the hippocampus and prefrontal cortex of mice. Our current data show that CUS exposure induced significant depression-like behaviors, down-regulation of BDNF/TrkB signaling and up-regulation of BICC1 in the hippocampus and prefrontal cortex of mice. However, biperiden significantly alleviated the CUS-induced abnormalities. Moreover, we found that the effects of biperiden were antagonized by pretreatment with the TrkB antagonist K252a. Our results indicate that BDNF/TrkB signaling may be the major upstream mediator of BICC1 involvement in the antidepressant-like effects of biperiden.
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Affiliation(s)
- Dongsheng Zhou
- Ningbo Kangning Hospital, Ningbo, Zhejiang 315201, PR China; Ningbo Key Laboratory of Behavioral Neuroscience, Medical School of Ningbo University, 818 Fenghua Road, Ningbo, Zhejiang 315211, PR China
| | - Zhongmin Zhang
- Department of Neurology, Hongqi Hospital, Mudanjiang Medical College, Mudanjiang, Heilongjiang 157011, PR China
| | - Lingjiang Liu
- Ningbo Kangning Hospital, Ningbo, Zhejiang 315201, PR China; Ningbo Key Laboratory of Behavioral Neuroscience, Medical School of Ningbo University, 818 Fenghua Road, Ningbo, Zhejiang 315211, PR China
| | - Chenli Li
- Ningbo Kangning Hospital, Ningbo, Zhejiang 315201, PR China; Ningbo Key Laboratory of Behavioral Neuroscience, Medical School of Ningbo University, 818 Fenghua Road, Ningbo, Zhejiang 315211, PR China
| | - Mengmeng Li
- Ningbo Kangning Hospital, Ningbo, Zhejiang 315201, PR China; Ningbo Key Laboratory of Behavioral Neuroscience, Medical School of Ningbo University, 818 Fenghua Road, Ningbo, Zhejiang 315211, PR China
| | - Hanjie Yu
- Ningbo Kangning Hospital, Ningbo, Zhejiang 315201, PR China; Ningbo Key Laboratory of Behavioral Neuroscience, Medical School of Ningbo University, 818 Fenghua Road, Ningbo, Zhejiang 315211, PR China
| | - Xiongxiong Cai
- Ningbo Kangning Hospital, Ningbo, Zhejiang 315201, PR China; Ningbo Key Laboratory of Behavioral Neuroscience, Medical School of Ningbo University, 818 Fenghua Road, Ningbo, Zhejiang 315211, PR China
| | - Xin Sun
- Ningbo Kangning Hospital, Ningbo, Zhejiang 315201, PR China; Ningbo Key Laboratory of Behavioral Neuroscience, Medical School of Ningbo University, 818 Fenghua Road, Ningbo, Zhejiang 315211, PR China
| | - Xinbei Shen
- Ningbo Kangning Hospital, Ningbo, Zhejiang 315201, PR China; Ningbo Key Laboratory of Behavioral Neuroscience, Medical School of Ningbo University, 818 Fenghua Road, Ningbo, Zhejiang 315211, PR China
| | - Jinting Wang
- Ningbo Kangning Hospital, Ningbo, Zhejiang 315201, PR China; Ningbo Key Laboratory of Behavioral Neuroscience, Medical School of Ningbo University, 818 Fenghua Road, Ningbo, Zhejiang 315211, PR China
| | - Jiacheng Geng
- Ningbo Kangning Hospital, Ningbo, Zhejiang 315201, PR China; Ningbo Key Laboratory of Behavioral Neuroscience, Medical School of Ningbo University, 818 Fenghua Road, Ningbo, Zhejiang 315211, PR China
| | - Chuang Wang
- Ningbo Kangning Hospital, Ningbo, Zhejiang 315201, PR China; Ningbo Key Laboratory of Behavioral Neuroscience, Medical School of Ningbo University, 818 Fenghua Road, Ningbo, Zhejiang 315211, PR China.
| | - Yaosheng Shi
- Ningbo Kangning Hospital, Ningbo, Zhejiang 315201, PR China; Ningbo Key Laboratory of Behavioral Neuroscience, Medical School of Ningbo University, 818 Fenghua Road, Ningbo, Zhejiang 315211, PR China.
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Sharma S, Graham R, Rohde R, Ceballos NA. Stress-induced change in serum BDNF is related to quantitative family history of alcohol use disorder and age at first alcohol use. Pharmacol Biochem Behav 2016; 153:12-17. [PMID: 27939343 DOI: 10.1016/j.pbb.2016.12.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 10/16/2016] [Accepted: 12/05/2016] [Indexed: 10/20/2022]
Abstract
Previous research in animal models suggests that brain-derived neurotrophic factor (BDNF) is involved in stress-modulated alcohol consumption. However, relatively few studies have investigated this issue in humans, and results of existing studies have been heterogeneous. The primary aim of the current study was to examine the within-subjects effect of acute stress (timed math plus cold pressor) on serum BDNF levels (ΔBDNF: post- minus pre-stress) in healthy social drinkers (N=68, 20 male). A secondary aim was to explore which heritable and environmental factors in our limited sample might exert the greatest influences on ΔBDNF. Importantly, presence versus absence of the BDNF Val66Met polymorphism (rs6265), which has often been discounted in studies of human serum BDNF, was included as a between-subjects control variable in all statistical analyses. Our results indicated that acute stress decreased serum BDNF. Further, multiple regression analyses revealed that quantitative family history of alcohol use disorder (qFH) and age at first alcohol use together accounted for 15% of the variance in ΔBDNF. Thus, the influences of qFH and age at first alcohol use may explain some of the heterogeneity that exists in previous studies of human serum BDNF. These results parallel findings in animal models and suggest that stress-related changes in serum BDNF are influenced by both heritable (qFH) and environmental (early alcohol consumption) factors.
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Affiliation(s)
- Shobhit Sharma
- Department of Biology, Texas State University, San Marcos 601 University Drive, San Marcos, TX 78666, USA
| | - Reiko Graham
- Department of Psychology, Texas State University, San Marcos 601 University Drive, San Marcos, TX 78666, USA
| | - Rodney Rohde
- Clinical Laboratory Science, Texas State University, San Marcos 601 University Drive, San Marcos, TX 78666, USA
| | - Natalie A Ceballos
- Department of Psychology, Texas State University, San Marcos 601 University Drive, San Marcos, TX 78666, USA.
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Serum brain-derived neurotrophic factor (BDNF) across pregnancy and postpartum: Associations with race, depressive symptoms, and low birth weight. Psychoneuroendocrinology 2016; 74:69-76. [PMID: 27588702 PMCID: PMC5166606 DOI: 10.1016/j.psyneuen.2016.08.025] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 08/25/2016] [Accepted: 08/25/2016] [Indexed: 12/13/2022]
Abstract
BACKGROUND Brain-derived neurotrophic factor (BDNF) is implicated as a causal factor in major depression and is critical to placental development during pregnancy. Longitudinal data on BDNF across the perinatal period are lacking. These data are of interest given the potential implications for maternal mood and fetal growth, particularly among Black women who show ∼2-fold greater risk for delivering low birth weight infants. METHODS Serum BDNF, serum cortisol, and depressive symptoms (per CES-D) were assessed during each trimester and 4-11 weeks postpartum among 139 women (77 Black, 62 White). Low birth weight (<2500g) was determined via medical record. RESULTS Serum BDNF declined considerably from 1st through 3rd trimesters (ps≤0.008) and subsequently increased at postpartum (p<0.001). Black women exhibited significantly higher serum BDNF during the 1st trimester, 2nd trimester, and postpartum (ps≤0.032) as well as lower serum cortisol during the 2nd and 3rd trimester (ps≤0.01). Higher serum cortisol was concurrently associated with lower serum BDNF in the 2nd trimester only (p<0.05). Controlling for race, serum BDNF at both the 2nd and 3rd trimester was negatively associated with 3rd trimester depressive symptoms (ps≤0.02). In addition, women delivering low versus healthy weight infants showed significantly lower serum BDNF in the 3rd trimester (p=0.004). Women delivering low versus healthy weight infants did not differ in depressive symptoms at any time point during pregnancy (ps≥0.34). CONCLUSIONS Serum BDNF declines considerably across pregnancy in Black and White women, with overall higher levels in Blacks. Lower serum BDNF in late pregnancy corresponds with higher depressive symptoms and risk for low birth weight in Black and White women. However, the predictive value of serum BDNF in pregnancy is specific to within-race comparisons. Potential links between racial differences in serum BDNF and differential pregnancy-related cortisol adaptation require further investigation.
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Bartlett DM, Cruickshank TM, Hannan AJ, Eastwood PR, Lazar AS, Ziman MR. Neuroendocrine and neurotrophic signaling in Huntington’s disease: Implications for pathogenic mechanisms and treatment strategies. Neurosci Biobehav Rev 2016; 71:444-454. [DOI: 10.1016/j.neubiorev.2016.09.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Revised: 08/29/2016] [Accepted: 09/12/2016] [Indexed: 11/25/2022]
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Neshatdoust S, Saunders C, Castle SM, Vauzour D, Williams C, Butler L, Lovegrove JA, Spencer JPE. High-flavonoid intake induces cognitive improvements linked to changes in serum brain-derived neurotrophic factor: Two randomised, controlled trials. ACTA ACUST UNITED AC 2016; 4:81-93. [PMID: 28035345 PMCID: PMC5166520 DOI: 10.3233/nha-1615] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BACKGROUND: Recent clinical studies have indicated the beneficial impact of dietary flavonoid intake on human cognitive performance. Although the mechanisms that mediate such improvements are currently unclear, animal and human trial data suggest that changes in neurotrophin expression, and related signalling apparatus, may be involved. OBJECTIVE: To investigate the link between changes in serum brain-derived neurotrophic factor (BDNF) and changes in human cognitive performance following flavonoid intake. METHODS: The relationship between serum levels of BDNF and age, gender, BMI, waist circumference, blood pressure and cognition at baseline, and following flavonoid intake, was investigated in two distinct randomised, controlled clinical trials. Trial 1 was conducted in men and women (aged 26–70 y; consuming an average of 3 portions of fruit and vegetables per day) and delivered high-flavonoid (>15 mg/100 g) or low-flavonoid (<5 mg/100 g) fruit and vegetables and increased intake by 2 portions every 6 weeks. The control arm was habitual diet over the same time frame. Trial 2 was conducted in an older males and female cohort (aged 62–75 y) intervening with a high-flavanol cocoa drink (494 mg total flavanols) and a low-flavanol cocoa drink (23 mg total flavanols) for 12 weeks. RESULTS: Serum BDNF levels increased linearly to the age of 65, after which BDNF levels were found to decrease markedly. All other physiological and anthropometric measurements proved to not be significantly associated with serum BDNF levels (p > 0.05), although higher levels in males compared to females almost achieved significance (p = 0.056). At baseline, higher serum BDNF levels were associated with significantly better global cognition scores, relative to individuals with lower serum levels. In addition, following intervention for 18 weeks, high-flavonoid, but not low-flavonoid, fruit and vegetable intake induced significant improvements in cognitive performance and increases in serum BDNF levels (p = <0.001). Flavanol intervention for 12 weeks also resulted in significant increases in serum BDNF (p = <0.001), and such increases were correlated with improvements in global cognitive performance. CONCLUSION: Increases in global cognition induced by high flavonoid fruit and vegetables, and cocoa flavanols were paralleled by concurrent changes in serum BDNF levels, suggesting a role for BDNF in flavonoid-induced cognitive improvements. Furthermore, we provide further data suggesting that serum BDNF levels may represent a biomarker of cognitive function.
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Affiliation(s)
- Sara Neshatdoust
- Hugh Sinclair Unit for Human Nutrition, School of Chemistry, Food and Pharmacy, University of Reading , Reading, UK
| | - Caroline Saunders
- Hugh Sinclair Unit for Human Nutrition, School of Chemistry, Food and Pharmacy, University of Reading , Reading, UK
| | - Sophie M Castle
- Hugh Sinclair Unit for Human Nutrition, School of Chemistry, Food and Pharmacy, University of Reading , Reading, UK
| | - David Vauzour
- Department of Nutrition, Norwich Medical School, University of East Anglia , Norwich, UK
| | - Claire Williams
- School of Psychology and Clinical Language Sciences, University of Reading , Reading, UK
| | - Laurie Butler
- School of Psychology and Clinical Language Sciences, University of Reading , Reading, UK
| | - Julie A Lovegrove
- Hugh Sinclair Unit for Human Nutrition, School of Chemistry, Food and Pharmacy, University of Reading , Reading, UK
| | - Jeremy P E Spencer
- Hugh Sinclair Unit for Human Nutrition, School of Chemistry, Food and Pharmacy, University of Reading , Reading, UK
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Radahmadi M, Hosseini N, Alaei H, Sharifi MR. The Effect of Preventive, Therapeutic and Protective Exercises on Hippocampal Memory Mediators in Stressed Rats. Malays J Med Sci 2016; 23:29-37. [PMID: 27904422 DOI: 10.21315/mjms2016.23.5.4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Accepted: 06/14/2016] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Exercise plays a significant role in learning and memory. The present study focuses on the hippocampal corticosterone (CORT), interleukin-1 beta (IL-1β), glucose, and brain-derived neurotrophic factor (BDNF) levels in preventive, therapeutic, and protective exercises in stressful conditions. METHODS Forty male rats were randomly divided into four groups: the control group and the preventive, therapeutic, and protective exercise groups. The treadmill running was applied at a speed of 20-21m/min and a chronic stress of 6 hours/day for 21 days. Subsequently, the variables were measured in the hippocampus. RESULTS The findings revealed that the hippocampal CORT levels in the preventive exercise group had a significant enhancement compared to the control group. In the protective and particularly the therapeutic exercise groups, the hippocampal CORT levels declined. Furthermore, the hippocampal BDNF levels in the preventive and the therapeutic exercise groups indicated significantly decreased and increased, respectively, in comparison with the control group. In the preventive exercise group, however, the hippocampal glucose level turned out to be substantially higher than that in the control group. CONCLUSION It appears that the therapeutic exercise group had the best exercise protocols for improving the hippocampal memory mediators in the stress conditions. By contrast, the preventive exercise group could not improve these mediators that had been altered by stress. It is suggested that exercise time, compared to stress, can be considered as a crucial factor in the responsiveness of memory mediators.
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Affiliation(s)
- Maryam Radahmadi
- Department of Physiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Nasrin Hosseini
- Nursing Care Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Hojjatallah Alaei
- Department of Physiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Reza Sharifi
- Department of Physiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
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Li M, Chang H, Xiao X. BDNF Val66Met polymorphism and bipolar disorder in European populations: A risk association in case-control, family-based and GWAS studies. Neurosci Biobehav Rev 2016; 68:218-233. [DOI: 10.1016/j.neubiorev.2016.05.031] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Revised: 05/11/2016] [Accepted: 05/24/2016] [Indexed: 01/15/2023]
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The interplay between neuropathology and activity based rehabilitation after traumatic brain injury. Brain Res 2016; 1640:152-163. [DOI: 10.1016/j.brainres.2016.01.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Revised: 01/08/2016] [Accepted: 01/09/2016] [Indexed: 02/07/2023]
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Tualang Honey Attenuates Noise Stress-Induced Memory Deficits in Aged Rats. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:1549158. [PMID: 27119005 PMCID: PMC4826941 DOI: 10.1155/2016/1549158] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 03/13/2016] [Indexed: 12/24/2022]
Abstract
Ageing and stress exposure may lead to memory impairment while oxidative stress is thought to be one of the underlying mechanisms involved. This study aimed to investigate the potential protective effects of Tualang honey supplementation on memory performance in aged rats exposed to noise stress. Tualang honey supplementation was given orally, 200 mg/kg body weight for 28 days. Rats in the stress group were subjected to loud noise, 100 dB(A), 4 hours daily for 14 days. All rats were subjected to novel object recognition test for evaluation of memory performance. It was observed that the rats subjected to noise stress exhibited significantly lower memory performance and higher oxidative stress as evident by elevated malondialdehyde and protein carbonyl levels and reduction of antioxidant enzymes activities compared to the nonstressed rats. Tualang honey supplementation was able to improve memory performance, decrease oxidative stress levels, increase brain-derived neurotrophic factor (BDNF) concentration, decrease acetylcholinesterase activity, and enhance neuronal proliferation in the medial prefrontal cortex (mPFC) and hippocampus. In conclusion, Tualang honey protects against memory decline due to stress exposure and/or ageing via enhancement of mPFC and hippocampal morphology possibly secondary to reduction in brain oxidative stress and/or upregulation of BDNF concentration and cholinergic system.
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Schaich CL, Wellman TL, Koi B, Erdos B. BDNF acting in the hypothalamus induces acute pressor responses under permissive control of angiotensin II. Auton Neurosci 2016; 197:1-8. [PMID: 26948539 DOI: 10.1016/j.autneu.2016.02.011] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 02/25/2016] [Accepted: 02/28/2016] [Indexed: 01/09/2023]
Abstract
Brain-derived neurotrophic factor (BDNF) expression increases in the paraventricular nucleus of the hypothalamus (PVN) during hypertensive stimuli including stress and hyperosmolarity, but its role in PVN cardiovascular regulatory mechanisms is unclear. Chronic BDNF overexpression in the PVN has been shown to elevate sympathetic tone and blood pressure in part by modulating central angiotensin (Ang) II mechanisms. However, the cardiovascular effects of short-term increases in PVN levels of BDNF and the mechanisms governing them are unknown. Therefore, we investigated whether acute BDNF microinjections into the PVN of conscious and anesthetized Sprague-Dawley rats induce blood pressure elevations and whether Ang II signaling is involved in these hypertensive responses. In conscious rats, unilateral BDNF (12.5ng) microinjections into the PVN increased mean arterial pressure (MAP) by 27±1mmHg (P<0.001 vs vehicle), which was significantly attenuated by intracerebroventricular infusion of the Ang II-type-1 receptor (AT1R) antagonist losartan and by ganglionic blockade with intravenous hexamethonium infusion. In anesthetized rats, unilateral PVN microinjection of BDNF increased MAP by 31±4mmHg (P<0.001 vs vehicle), which was prevented by PVN microinjection pretreatments with the high-affinity BDNF receptor TrkB antagonist ANA-12, losartan, the angiotensin converting enzyme inhibitor lisinopril, or by intravenous hexamethonium. Additional experiments in hypothalamic samples including the PVN revealed that BDNF-induced TrkB receptor phosphorylation was prevented by ANA-12 and losartan pretreatments. Collectively, these data indicate that BDNF acting within the PVN acutely raises blood pressure under permissive control of Ang II-AT1R mechanisms and therefore may play an important role in mediating acute pressor responses to hypertensive stimuli.
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Affiliation(s)
- Chris L Schaich
- Department of Pharmacology, University of Vermont, Burlington, VT, USA
| | - Theresa L Wellman
- Department of Pharmacology, University of Vermont, Burlington, VT, USA
| | - Blanka Koi
- Department of Pharmacology, University of Vermont, Burlington, VT, USA
| | - Benedek Erdos
- Department of Pharmacology, University of Vermont, Burlington, VT, USA.
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Le MH, Weissmiller AM, Monte L, Lin PH, Hexom TC, Natera O, Wu C, Rissman RA. Functional Impact of Corticotropin-Releasing Factor Exposure on Tau Phosphorylation and Axon Transport. PLoS One 2016; 11:e0147250. [PMID: 26790099 PMCID: PMC4720402 DOI: 10.1371/journal.pone.0147250] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 01/03/2016] [Indexed: 01/20/2023] Open
Abstract
Stress exposure or increased levels of corticotropin-releasing factor (CRF) induce hippocampal tau phosphorylation (tau-P) in rodent models, a process that is dependent on the type-1 CRF receptor (CRFR1). Although these preclinical studies on stress-induced tau-P provide mechanistic insight for epidemiological work that identifies stress as a risk factor for Alzheimer’s disease (AD), the actual impact of stress-induced tau-P on neuronal function remains unclear. To determine the functional consequences of stress-induced tau-P, we developed a novel mouse neuronal cell culture system to explore the impact of acute (0.5hr) and chronic (2hr) CRF treatment on tau-P and integral cell processes such as axon transport. Consistent with in vivo reports, we found that chronic CRF treatment increased tau-P levels and caused globular accumulations of phosphorylated tau in dendritic and axonal processes. Furthermore, while both acute and chronic CRF treatment led to significant reduction in CREB activation and axon transport of brain-derived neurotrophic factor (BDNF), this was not the case with mitochondrial transport. Acute CRF treatment caused increased mitochondrial velocity and distance traveled in neurons, while chronic CRF treatment modestly decreased mitochondrial velocity and greatly increased distance traveled. These results suggest that transport of cellular energetics may take priority over growth factors during stress. Tau-P was required for these changes, as co-treatment of CRF with a GSK kinase inhibitor prevented CRF-induced tau-P and all axon transport changes. Collectively, our results provide mechanistic insight into the consequences of stress peptide-induced tau-P and provide an explanation for how chronic stress via CRF may lead to neuronal vulnerability in AD.
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Affiliation(s)
- Michelle H. Le
- Department of Neurosciences, University of California San Diego, La Jolla, CA 92093, United States of America
| | - April M. Weissmiller
- Department of Neurosciences, University of California San Diego, La Jolla, CA 92093, United States of America
| | - Louise Monte
- Department of Neurosciences, University of California San Diego, La Jolla, CA 92093, United States of America
| | - Po Han Lin
- Department of Neurosciences, University of California San Diego, La Jolla, CA 92093, United States of America
| | - Tia C. Hexom
- Department of Neurosciences, University of California San Diego, La Jolla, CA 92093, United States of America
| | - Orlangie Natera
- Department of Neurosciences, University of California San Diego, La Jolla, CA 92093, United States of America
| | - Chengbiao Wu
- Department of Neurosciences, University of California San Diego, La Jolla, CA 92093, United States of America
| | - Robert A. Rissman
- Department of Neurosciences, University of California San Diego, La Jolla, CA 92093, United States of America
- Veterans Affairs San Diego Healthcare System, San Diego, CA 92161, United States of America
- * E-mail:
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Antidepressant-like effects of ginsenosides: A comparison of ginsenoside Rb3 and its four deglycosylated derivatives, Rg3, Rh2, compound K, and 20(S)-protopanaxadiol in mice models of despair. Pharmacol Biochem Behav 2015; 140:17-26. [PMID: 26528894 DOI: 10.1016/j.pbb.2015.10.018] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 10/29/2015] [Accepted: 10/30/2015] [Indexed: 11/21/2022]
Abstract
Ginsenoside Rb3 has been proved to have antidepressant-like effects, which possesses 1 xylose and 3 glucose moieties with 20(S)-protopanaxadiol (PPD) as the aglycone. However, it is commonly accepted that orally ingested ginsenosides can be deglycosylated or partially deglycosylated into active derivatives by the intestinal bacteria. To identify potential antidepressant drug candidates, we compared the antidepressant-like activities between ginsenoside Rb3 and its four deglycosylated derivatives, Rg3, Rh2, compound K (C-K), and PPD. Effects of acute (1-day), short chronic (7-days), and longer chronic treatments (14-days) with these ginsenosides (50 and 100mg/kg, p.o.) on the behavioral changes in the forced swim test (FST), tail suspension test (TST) and open field test were investigated. Serum corticosterone and adrenocorticotropic hormone (ACTH) levels and mouse brain monoamine neurotransmitters 5-HT, NA and DA levels were measured using commercially available competitive enzyme-linked immunosorbent assay (ELISA) kits. Interestingly, C-K showed antidepressant-like activities similar to that of Rb3, and Rg3 displayed antidepressant-like effects at lower dosage and faster time, indicating it has better effects than Rb3, whereas Rh2 and PPD failed to show any effect. Our results also showed, unlike the positive control fluoxetine, Rb3, Rg3 and C-K significantly increased the NA levels in the brain regions of mice exposed to FST but did not affect the 5-HT and DA levels. Moreover, treatment with Rg3 could reverse swim stress-induced increased levels of serum ACTH and corticosterone. These results suggest that C-K and Rg3 are the active deglycosylated derivatives, especially the latter compound, which is more potent than Rb3 and exerts antidepressant-like effects by regulating NA, ACTH and corticosterone levels.
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Jamal M, Van der Does W, Elzinga BM, Molendijk ML, Penninx BWJH. Association between smoking, nicotine dependence, and BDNF Val66Met polymorphism with BDNF concentrations in serum. Nicotine Tob Res 2015; 17:323-9. [PMID: 25183693 PMCID: PMC4837993 DOI: 10.1093/ntr/ntu151] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Accepted: 07/27/2014] [Indexed: 01/09/2023]
Abstract
INTRODUCTION Nicotine use is associated with the upregulation of brain-derived neurotrophic factor (BDNF) in serum. An association between smoking and the BDNF Val(66)Met polymorphism has also been found. The aim of this study is to examine the levels of serum BDNF in never-smokers, former smokers, and current smokers-with and without nicotine dependence-and to examine the interaction of the polymorphism and smoking status with serum BDNF. METHODS We used baseline serum and gene data of BDNF on 2,088 participants from the Netherlands Study of Depression and Anxiety (NESDA) to investigate smoking-BDNF association while controlling for potential confounding variables. Nicotine dependence was assessed with the Fagerstrom Test for Nicotine Dependence (FTND). RESULTS Smokers with and without nicotine dependence had higher levels of serum BDNF than former and never-smokers. Nicotine dependence and number of cigarettes smoked per day did not add to the prediction of serum BDNF; however, total number of smoking years was a significant predictor of serum BDNF. There was no association of BDNF Val(66)Met, nor an interaction of this polymorphism and smoking status, with serum BDNF. CONCLUSIONS Current smoking and higher number of smoking years are associated with higher levels of serum BDNF, and this is independent of the BDNF genotype. Nicotine dependence itself is not associated with a further increase or decrease of serum BDNF. Longitudinal investigations that address changes in serum BDNF in incident smokers and/or in quitters may be useful to understand the association of smoking with BDNF.
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Affiliation(s)
- Mumtaz Jamal
- Institute of Psychology, Leiden University, Leiden, The Netherlands;
| | - Willem Van der Does
- Institute of Psychology, Leiden University, Leiden, The Netherlands; Department of Psychiatry, Leiden University Medical Center, Leiden, The Netherlands
| | - Bernet M Elzinga
- Institute of Psychology, Leiden University, Leiden, The Netherlands
| | - Marc L Molendijk
- Institute of Psychology, Leiden University, Leiden, The Netherlands
| | - Brenda W J H Penninx
- Department of Psychiatry, Leiden University Medical Center, Leiden, The Netherlands
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Effects of different timing of stress on corticosterone, BDNF and memory in male rats. Physiol Behav 2015; 139:459-67. [DOI: 10.1016/j.physbeh.2014.12.004] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2014] [Revised: 11/25/2014] [Accepted: 12/02/2014] [Indexed: 02/06/2023]
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Wu JQ, Chen DC, Tan YL, Tan SP, Hui L, Lv MH, Soares JC, Zhang XY. Altered BDNF is correlated to cognition impairment in schizophrenia patients with tardive dyskinesia. Psychopharmacology (Berl) 2015; 232:223-32. [PMID: 24994553 DOI: 10.1007/s00213-014-3660-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2014] [Accepted: 06/03/2014] [Indexed: 12/21/2022]
Abstract
BACKGROUND Long-term antipsychotic treatment for schizophrenia is often associated with the emergence of tardive dyskinesia (TD), which is linked to greater cognitive impairment. Brain-derived neurotrophic factor (BDNF) plays a critical role in cognitive function, and schizophrenia patients with TD have lower BDNF levels than those without TD. OBJECTIVE This study examines the BDNF levels, the cognitive function, and the association of BDNF with cognitive function in schizophrenia patients with or without TD. METHODS We recruited 83 male chronic patients with (n=35) and without TD (n=48) meeting DSM-IV criteria for schizophrenia and 52 male control subjects. We examined the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) and BDNF levels for all subjects. Positive and Negative Symptom Scale (PANSS) and the Abnormal Involuntary Movement Scale (AIMS) were assessed in patients. RESULTS BDNF levels were lower in patients with than those without TD (p<0.05). RBANS total score (p<0.01) and subscales of immediate memory, visuospatial/constructional performance, and attention were lower in patients with than those without TD (all p<0.05). BDNF levels were positively associated with immediate memory in patients without TD, but negatively in TD patients (both p<0.05). Multiple regression analysis confirmed that in either TD or non-TD group, BDNF was an independent contributor to immediate memory (both p<0.05). CONCLUSIONS BDNF may be involved in the pathophysiology of TD. While the associations between BDNF and cognition in both TD and non-TD patients suggest a close relationship between BDNF and cognition, the different directions may implicate distinct mechanisms between TD and non-TD patients.
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Affiliation(s)
- Jing Qin Wu
- School of Biomedical Sciences and Pharmacy, Faculty of Health, The University of Newcastle, University Drive, Callaghan, NSW, 2308, Australia
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Drakopoulos P, Casarosa E, Bucci F, Piccinino M, Wenger JM, Nappi RE, Polyzos N, Genazzani AR, Pluchino N. Diurnal Variation of Plasma Brain-Derived Neurotrophic Factor Levels in Women with Functional Hypothalamic Amenorrhea. Neuroendocrinology 2015; 101:256-62. [PMID: 25791538 DOI: 10.1159/000381456] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Accepted: 03/07/2015] [Indexed: 11/19/2022]
Abstract
BACKGROUND Brain-derived neurotrophic factor (BDNF) is strongly related to hormonal networks and is modulated by hypothalamic activity. OBJECTIVE To evaluate plasma BDNF concentration in patients with functional hypothalamic amenorrhea (FHA), with reference to the BDNF circadian rhythm and its relation with the cortisol (F) rhythm, and to assess whether the duration of amenorrhea might influence the BDNF:F ratio in FHA. DESIGN This was an observational study evaluating 36 amenorrheic and 30 eumenorrheic women. SETTING Basal values of BDNF and hormones were examined in blood samples collected from 7:00 to 9:00 h in all the women. Basal BDNF and F levels were determined in blood samples collected in 12 subjects from each group at 8:00, 12:00, 16:00, 20:00, and 24:00 h. RESULTS BDNF plasma levels are significantly lower in amenorrheic women (p < 0.001) than in the follicular phase of eumenorrheic women. There are no correlations between BDNF values (p > 0.05), sex steroids, and F in FHA. Low plasma BDNF levels in FHA are not significantly correlated with duration of amenorrhea. The 24-hour variation of BDNF in amenorrheic women is significantly lower when compared to the control group, and normal daily variations of BDNF disappeared in FHA patients. F preserved its circadian rhythm in both groups. CONCLUSIONS Interactions between BDNF, the hypothalamus-pituitary-adrenal axis, and sex steroids might be critical in clinical conditions of modified homeostasis/adaptation, such as FHA.
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Affiliation(s)
- Panagiotis Drakopoulos
- Division of Gynecology and Obstetrics, University Hospital of Geneva, Geneva, Switzerland
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38
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Zhitkova JV. Comparison of different doses of escitalopram in the prevention of dementia in patients with depression and moderate cognitive dysfunction associated with chronic brain ischemia. Zh Nevrol Psikhiatr Im S S Korsakova 2015; 115:53-60. [DOI: 10.17116/jnevro20151158153-60] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Smith E, Brosnan M, Comiskey C, Synnott K. Road collisions as a cause of traumatic spinal cord injury in ireland, 2001-2010. Top Spinal Cord Inj Rehabil 2014; 20:158-65. [PMID: 25477738 DOI: 10.1310/sci2002-147] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND Road collisions remain the leading cause of traumatic spinal cord injury (TSCI) in the world. Half of all TSCIs in Ireland in 2000 were caused by road collisions. Since then, there has been a downward trend in road fatalities coincident with implemented road safety strategies. OBJECTIVE To examine the incidence of TSCI resulting from road collisions from 2001 to 2010. METHOD This is a retrospective study using the hospital inpatient enquiry database of the tertiary referral center, which houses the national spinal injuries unit. Information retrieved included total numbers of patients with TSCI and number of TSCIs due to road collisions from 2001 through 2010, age groups affected, and the gender balance. RESULTS Over the 10-year period studied, the incidence rate of TSCI due to road collisions declined, although this did not reach statistical significance. The largest numbers of all TSCIs and TSCIs due to road collisions were in the 20- to 29-year age category and the male gender. CONCLUSIONS As mortality due to road collisions declined, so did the number of TSCIs from the same etiology. An impactful road safety campaign is likely to have influenced these trends.
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Affiliation(s)
- Eimear Smith
- Spinal Cord System of Care, National Rehabilitation Hospital, Dun Laoghaire , Co. Dublin , Ireland
| | | | - Catherine Comiskey
- Centre for Practice & Healthcare Innovation, School of Nursing & Midwifery, Trinity College Dublin , Dublin , Ireland
| | - Keith Synnott
- Department of Spinal & Orthopaedic Surgery, Mater Misericordiae University Hospital , Dublin , Ireland
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Increases in mature brain-derived neurotrophic factor protein in the frontal cortex and basal forebrain during chronic sleep restriction in rats: Possible role in initiating allostatic adaptation. Neuroscience 2014; 277:174-83. [DOI: 10.1016/j.neuroscience.2014.06.067] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Revised: 06/27/2014] [Accepted: 06/27/2014] [Indexed: 01/09/2023]
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Bartlang MS, Savelyev SA, Johansson AS, Reber SO, Helfrich-Förster C, Lundkvist GBS. Repeated psychosocial stress at night, but not day, affects the central molecular clock. Chronobiol Int 2014; 31:996-1007. [PMID: 25051430 DOI: 10.3109/07420528.2014.940085] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
We have recently demonstrated that the outcome of repeated social defeat (SD) on behavior, physiology and immunology is more negative when applied during the dark/active phase as compared with the light/inactive phase of male C57BL/6 mice. Here, we investigated the effects of the same stress paradigm, which combines a psychosocial and novelty stressor, on the circadian clock in transgenic PERIOD2::LUCIFERASE (PER2::LUC) and wildtype (WT) mice by subjecting them to repeated SD, either in the early light phase (social defeat light = SDL) or in the early dark phase (social defeat dark = SDD) across 19 days. The PER2::LUC rhythms and clock gene mRNA expression were analyzed in the suprachiasmatic nucleus (SCN) and the adrenal gland, and PER2 protein expression in the SCN was assessed. SDD mice showed increased PER2::LUC rhythm amplitude in the SCN, reduced Per2 and Cryptochrome1 mRNA expression in the adrenal gland, and increased PER2 protein expression in the posterior part of the SCN compared with single-housed control (SHC) and SDL mice. In contrast, PER2::LUC rhythms in the SCN of SDL mice were not affected. However, SDL mice exhibited a 2-hour phase advance of the PER2::LUC rhythm in the adrenal gland compared to SHC mice. Furthermore, plasma levels of brain-derived neurotrophic factor (BDNF) and BDNF mRNA in the SCN were elevated in SDL mice. Taken together, these results show that the SCN molecular rhythmicity is affected by repeated SDD, but not SDL, while the adrenal peripheral clock is influenced mainly by SDL. The observed increase in BDNF in the SDL group may act to protect against the negative consequences of repeated psychosocial stress.
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Affiliation(s)
- Manuela S Bartlang
- Department of Neurobiology and Genetics, Biocenter, University of Würzburg , Würzburg , Germany
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Dimatelis JJ, Russell VA, Stein DJ, Daniels WM. Methamphetamine reversed maternal separation-induced decrease in nerve growth factor in the ventral hippocampus. Metab Brain Dis 2014; 29:433-9. [PMID: 24407463 DOI: 10.1007/s11011-014-9481-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2013] [Accepted: 01/03/2014] [Indexed: 10/25/2022]
Abstract
Stress has been suggested to predispose individuals to drug abuse. The early life stress of maternal separation (MS) is known to alter the response to drugs of abuse later in life. Exposure to either stress or methamphetamine has been shown to alter neurotrophic factors in the brain. Changes in neurotrophin levels may contribute to the underlying molecular mechanisms responsible for drug use- and stress-induced behaviours. The purpose of the present study was to investigate the individual effects of MS and methamphetamine administration during adolescence and the combined effects of both stressors on brain-derived neurotrophic factor (BDNF) and nerve growth factor (NGF) levels in the dorsal and ventral hippocampus (HC) in adulthood. Methamphetamine administration (1 mg/kg, daily from postnatal day (PND) 33 to 36 and from PND 39 to 42), MS and the combination of the two stressors resulted in decreased BDNF levels in both the dorsal and ventral HC. MS decreased NGF levels in the ventral HC which was restored by methamphetamine administration in adolescence. In the dorsal HC, NGF remained unaltered by either stressor alone or in combination. We propose that the restoration of NGF levels in the ventral HC may reflect a possible compensatory mechanism in response to methamphetamine exposure in adolescence following the early life stress of MS.
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Affiliation(s)
- J J Dimatelis
- Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Anzio Road, Observatory, Cape Town, South Africa, 7925,
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Wu JJ, Cui Y, Yang YS, Kang MS, Jung SC, Park HK, Yeun HY, Jang WJ, Lee S, Kwak YS, Eun SY. Modulatory effects of aromatherapy massage intervention on electroencephalogram, psychological assessments, salivary cortisol and plasma brain-derived neurotrophic factor. Complement Ther Med 2014; 22:456-62. [PMID: 24906585 DOI: 10.1016/j.ctim.2014.04.001] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Revised: 04/22/2014] [Accepted: 04/23/2014] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVES Aromatherapy massage is commonly used for the stress management of healthy individuals, and also has been often employed as a therapeutic use for pain control and alleviating psychological distress, such as anxiety and depression, in oncological palliative care patients. However, the exact biological basis of aromatherapy massage is poorly understood. Therefore, we evaluated here the effects of aromatherapy massage interventions on multiple neurobiological indices such as quantitative psychological assessments, electroencephalogram (EEG) power spectrum pattern, salivary cortisol and plasma brain-derived neurotrophic factor (BDNF) levels. DESIGN A control group without treatment (n = 12) and aromatherapy massage group (n = 13) were randomly recruited. They were all females whose children were diagnosed as attention deficit hyperactivity disorder and followed up in the Department of Psychiatry, Jeju National University Hospital. Participants were treated with aromatherapy massage for 40 min twice per week for 4 weeks (8 interventions). RESULTS A 4-week-aromatherapy massage program significantly improved all psychological assessment scores in the Stat-Trait Anxiety Index, Beck Depression Inventory and Short Form of Psychosocial Well-being Index. Interestingly, plasma BDNF levels were significantly increased after a 4 week-aromatherapy massage program. Alpha-brain wave activities were significantly enhanced and delta wave activities were markedly reduced following the one-time aromatherapy massage treatment, as shown in the meditation and neurofeedback training. In addition, salivary cortisol levels were significantly reduced following the one-time aromatherapy massage treatment. CONCLUSIONS These results suggest that aromatherapy massage could exert significant influences on multiple neurobiological indices such as EEG pattern, salivary cortisol and plasma BDNF levels as well as psychological assessments.
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Affiliation(s)
- Jin-Ji Wu
- Department of Physiology, Jeju National University School of Medicine, Republic of Korea
| | - Yanji Cui
- Department of Physiology, Jeju National University School of Medicine, Republic of Korea
| | - Yoon-Sil Yang
- Department of Physiology, Jeju National University School of Medicine, Republic of Korea
| | - Moon-Seok Kang
- Department of Physiology, Jeju National University School of Medicine, Republic of Korea
| | - Sung-Cherl Jung
- Department of Physiology, Jeju National University School of Medicine, Republic of Korea
| | - Hyeung Keun Park
- Department of Health Policy and Administration, Jeju National University School of Medicine, Republic of Korea
| | - Hye-Young Yeun
- SPA Yeon therapy center, Yeon-dong, Jeju, Republic of Korea
| | | | - Sunjoo Lee
- Department of Chemistry, Jeju National University, Republic of Korea
| | - Young Sook Kwak
- Department of Psychiatry, Jeju National University School of Medicine, Republic of Korea
| | - Su-Yong Eun
- Department of Physiology, Jeju National University School of Medicine, Republic of Korea.
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BDNF in late-life depression: effect of SSRI usage and interaction with childhood abuse. Psychoneuroendocrinology 2014; 43:81-9. [PMID: 24703173 DOI: 10.1016/j.psyneuen.2014.02.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Revised: 01/11/2014] [Accepted: 02/03/2014] [Indexed: 01/09/2023]
Abstract
Brain-Derived Neurotrophic Factor (BDNF) serum levels are abnormally low in depressed patients as compared to healthy controls and normalize with SSRI treatment. The aim of this study is to examine serum BDNF levels in late-life depression, stratified for SSRI usage, and to explore the relation between BDNF levels and specific depression characteristics as well as between BDNF levels and early and recent life stressors in late-life depression. We assessed serum BDNF levels in 259 depressed patients not using an SSRI, 99 depressed patients using an SSRI and 119 non-depressed controls (age range 60-93 years). Depressive disorders were diagnosed with the Composite International Diagnostic Interview (CIDI, version 2.1). Serum BDNF levels were significantly higher in depressed patients who used an SSRI compared to depressed patients not using SSRIs and compared to non-depressed controls, when adjusted for age, sex, life style characteristics, cognitive functioning and somatic comorbidity. Recent life-events, assessed with the List of Threatening Events-Questionnaire, were significantly associated with lower BDNF levels in non-depressed subjects only. Although a summary score of early traumatization (before the age of 16 years) was not associated with serum BDNF levels in any of the three groups, we found an interaction between a history of severe physical abuse and SSRI usage in the depressed group. Interestingly, higher serum levels of BDNF in depressed patients using SSRIs were only found in those patients without a history of severe childhood abuse and not in those with a history of severe childhood abuse.
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Pinheiro KAT, Pinheiro RT, Coelho FMDC, da Silva RA, Quevedo LÁ, Schwanz CC, Wiener CD, Manfro GG, Giovenardi M, Lucion AB, de Souza DO, Portela LV, Oses JP. Serum NGF, BDNF and IL-6 levels in postpartum mothers as predictors of infant development: the influence of affective disorders. PLoS One 2014; 9:e94581. [PMID: 24733087 PMCID: PMC3986106 DOI: 10.1371/journal.pone.0094581] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2013] [Accepted: 03/18/2014] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Early adverse experiences are associated with increased risk of developing psychiatric disorders, although little is known about the neurobiological mediators involved. The mechanisms by which early environmental influences may mediate vulnerability in the development of offspring await further investigation. The present study correlated the NGF, BDNF, IL-6 and cortisol levels of mothers with postpartum affective disorders (PPAD) with infant development. METHODS A longitudinal study was performed with 152 pregnant women and their infants. Between 60 and 120 days after delivery, women were interviewed and provided biological samples for biochemical analysis, and the infants were examined for neurobiological-motor development. RESULTS Overall, the mothers' history of affective disorders, PPAD and anxiety disorder were associated with infant motor development. Using an adjusted linear regression analysis, PPAD (p = 0.049), maternal anxiety disorder (p = 0.043), NGF level (p = 0.034) and infant cortisol level (p = 0.013) were associated with infant motor development. Using a factorial analysis of primary components, two components were retained. The psychological factor was characterized by a positive loading of a history of affective disorder, PPAD and anxiety disorder. For the biological factor, infant cortisol adhered negatively with infant motor development, but NGF was positively associated. The psychological factor had a negative association, but the biological factor had a positive association with infant motor development. CONCLUSIONS There are few studies that have focused on the relationship of biomarkers and infant neurodevelopment. Our study points that psychological and biological factors are associated with infant motor development, however the causal relationship between these factors is still to be defined.
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Affiliation(s)
| | - Ricardo Tavares Pinheiro
- Postgraduate Program in Health and Behavior, Universidade Católica de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | | | - Ricardo Azevedo da Silva
- Postgraduate Program in Health and Behavior, Universidade Católica de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Luciana Ávila Quevedo
- Postgraduate Program in Health and Behavior, Universidade Católica de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Cristina Carvalhal Schwanz
- Postgraduate Program in Health and Behavior, Universidade Católica de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Carolina David Wiener
- Postgraduate Program in Health and Behavior, Universidade Católica de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Gisele Gus Manfro
- Department of Psychiatry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Márcia Giovenardi
- Department of Physiological Sciences. Universidade Federal de Ciências da Sáude de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Aldo Bolten Lucion
- Department of Physiological Sciences. Universidade Federal de Ciências da Sáude de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Diogo Onofre de Souza
- Department of Biochemistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Luis Valmor Portela
- Department of Biochemistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Jean Pierre Oses
- Postgraduate Program in Health and Behavior, Universidade Católica de Pelotas, Pelotas, Rio Grande do Sul, Brazil
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Hernaus D, van Winkel R, Gronenschild E, Habets P, Kenis G, Marcelis M, van Os J, Myin-Germeys I, Collip D. Brain-derived neurotrophic factor/FK506-binding protein 5 genotype by childhood trauma interactions do not impact on hippocampal volume and cognitive performance. PLoS One 2014; 9:e92722. [PMID: 24658422 PMCID: PMC3962453 DOI: 10.1371/journal.pone.0092722] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Accepted: 02/25/2014] [Indexed: 01/19/2023] Open
Abstract
In the development of psychotic symptoms, environmental and genetic factors may both play a role. The reported association between childhood trauma and psychotic symptoms could therefore be moderated by single nucleotide polymorphisms (SNPs) associated with the stress response, such as FK506-binding protein 5 (FKBP5) and brain-derived neurotrophic factor (BDNF). Recent studies investigating childhood trauma by SNP interactions have inconsistently found the hippocampus to be a potential target underlying these interactions. Therefore, more detailed modelling of these effects, using appropriate covariates, is required. We examined whether BDNF/FKBP5 and childhood trauma interactions affected two proxies of hippocampal integrity: (i) hippocampal volume and (ii) cognitive performance on a block design (BD) and delayed auditory verbal task (AVLT). We also investigated whether the putative interaction was different for patients with a psychotic disorder (n = 89) compared to their non-psychotic siblings (n = 95), in order to elicit possible group-specific protective/vulnerability effects. SNPs were rs9296158, rs4713916, rs992105, rs3800373 (FKBP5) and rs6265 (BDNF). In the combined sample, no BDNF/FKBP5 by childhood trauma interactions were apparent for either outcome, and BDNF/FKBP5 by childhood trauma interactions were not different for patients and siblings. The omission of drug use and alcohol consumption sometimes yielded false positives, greatly affected explained error and influenced p-values. The consistent absence of any significant BDNF/FKBP5 by childhood trauma interactions on assessments of hippocampal integrity suggests that the effect of these interactions on psychotic symptoms is not mediated by hippocampal integrity. The importance of appropriate statistical designs and inclusion of relevant covariates should be carefully considered.
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Affiliation(s)
- Dennis Hernaus
- Department of Psychiatry and Psychology, South Limburg Mental Health Research and Teaching Network, EURON, School for Mental Health and NeuroScience MHeNS Maastricht University, Maastricht, The Netherlands
| | - Ruud van Winkel
- Department of Psychiatry and Psychology, South Limburg Mental Health Research and Teaching Network, EURON, School for Mental Health and NeuroScience MHeNS Maastricht University, Maastricht, The Netherlands
- University Psychiatric Centre Catholic University Leuven, Kortenberg, Belgium
| | - Ed Gronenschild
- Department of Psychiatry and Psychology, South Limburg Mental Health Research and Teaching Network, EURON, School for Mental Health and NeuroScience MHeNS Maastricht University, Maastricht, The Netherlands
| | - Petra Habets
- Department of Psychiatry and Psychology, South Limburg Mental Health Research and Teaching Network, EURON, School for Mental Health and NeuroScience MHeNS Maastricht University, Maastricht, The Netherlands
| | - Gunter Kenis
- Department of Psychiatry and Psychology, South Limburg Mental Health Research and Teaching Network, EURON, School for Mental Health and NeuroScience MHeNS Maastricht University, Maastricht, The Netherlands
| | - Machteld Marcelis
- Department of Psychiatry and Psychology, South Limburg Mental Health Research and Teaching Network, EURON, School for Mental Health and NeuroScience MHeNS Maastricht University, Maastricht, The Netherlands
| | - Jim van Os
- Department of Psychiatry and Psychology, South Limburg Mental Health Research and Teaching Network, EURON, School for Mental Health and NeuroScience MHeNS Maastricht University, Maastricht, The Netherlands
- King's College London, King's Health Partners, Department of Psychosis Studies, Institute of Psychiatry, London, United Kingdom
| | - Inez Myin-Germeys
- Department of Psychiatry and Psychology, South Limburg Mental Health Research and Teaching Network, EURON, School for Mental Health and NeuroScience MHeNS Maastricht University, Maastricht, The Netherlands
| | - Dina Collip
- Department of Psychiatry and Psychology, South Limburg Mental Health Research and Teaching Network, EURON, School for Mental Health and NeuroScience MHeNS Maastricht University, Maastricht, The Netherlands
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Kai-xin-san, a chinese herbal decoction containing ginseng radix et rhizoma, polygalae radix, acori tatarinowii rhizoma, and poria, stimulates the expression and secretion of neurotrophic factors in cultured astrocytes. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 2013:731385. [PMID: 24222781 PMCID: PMC3814066 DOI: 10.1155/2013/731385] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Revised: 08/16/2013] [Accepted: 08/21/2013] [Indexed: 11/17/2022]
Abstract
Kai-xin-san (KXS), a Chinese herbal decoction prescribed by Sun Simiao in Beiji Qianjin Yaofang about 1400 years ago, contains Ginseng Radix et Rhizoma, Polygalae Radix, Acori Tatarinowii Rhizoma, and Poria. In China, KXS has been used to treat stress-related psychiatric diseases with the symptoms of depression and forgetfulness. Although animal study has supported the antidepression function of KXS, the mechanism in cellular level is still unknown. Here, a chemically standardized water extract of KXS was applied onto cultured astrocytes in exploring the action mechanisms of KXS treatment, which significantly stimulated the expression and secretion of neurotrophic factors, including NGF, BDNF, and GDNF, in a dose-dependent manner: the stimulation was both in mRNA and protein levels. In addition, the water extracts of four individual herbs did not significantly stimulate the expression of neurotrophic factors, which could explain the optimized effect of KXS in a herbal decoction. The KXS-induced expression of neurotrophic factors did not depend on signaling mediated by estrogen receptor or protein kinase. The results suggested that the antidepressant-like action of KXS might be mediated by an increase of expression of neurotrophic factors in astrocytes, which fully supported the clinical usage of this decoction.
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Du X, Pang TYC, Hannan AJ. A Tale of Two Maladies? Pathogenesis of Depression with and without the Huntington's Disease Gene Mutation. Front Neurol 2013; 4:81. [PMID: 23847583 PMCID: PMC3705171 DOI: 10.3389/fneur.2013.00081] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2013] [Accepted: 06/11/2013] [Indexed: 12/23/2022] Open
Abstract
Huntington’s disease (HD) is an autosomal dominant disorder caused by a tandem repeat expansion encoding an expanded tract of glutamines in the huntingtin protein. HD is progressive and manifests as psychiatric symptoms (including depression), cognitive deficits (culminating in dementia), and motor abnormalities (including chorea). Having reached the twentieth anniversary of the discovery of the “genetic stutter” which causes HD, we still lack sophisticated insight into why so many HD patients exhibit affective disorders such as depression at very early stages, prior to overt appearance of motor deficits. In this review, we will focus on depression as the major psychiatric manifestation of HD, discuss potential mechanisms of pathogenesis identified from animal models, and compare depression in HD patients with that of the wider gene-negative population. The discovery of depressive-like behaviors as well as cellular and molecular correlates of depression in transgenic HD mice has added strong support to the hypothesis that the HD mutation adds significantly to the genetic load for depression. A key question is whether HD-associated depression differs from that in the general population. Whilst preclinical studies, clinical data, and treatment responses suggest striking similarities, there are also some apparent differences. We discuss various molecular and cellular mechanisms which may contribute to depression in HD, and whether they may generalize to other depressive disorders. The autosomal dominant nature of HD and the existence of models with excellent construct validity provide a unique opportunity to understand the pathogenesis of depression and associated gene-environment interactions. Thus, understanding the pathogenesis of depression in HD may not only facilitate tailored therapeutic approaches for HD sufferers, but may also translate to the clinical depression which devastates the lives of so many people.
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Affiliation(s)
- Xin Du
- Behavioural Neuroscience Division, Florey Institute of Neuroscience and Mental Health, University of Melbourne , Parkville, VIC , Australia
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Jeanneteau F, Chao MV. Are BDNF and glucocorticoid activities calibrated? Neuroscience 2013; 239:173-95. [PMID: 23022538 PMCID: PMC3581703 DOI: 10.1016/j.neuroscience.2012.09.017] [Citation(s) in RCA: 104] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2012] [Revised: 09/04/2012] [Accepted: 09/06/2012] [Indexed: 12/22/2022]
Abstract
One hypothesis to account for the onset and severity of neurological disorders is the loss of trophic support. Indeed, changes in the levels and activities of brain-derived neurotrophic factor (BDNF) occur in numerous neurodegenerative and neuropsychiatric diseases. A deficit promotes vulnerability whereas a gain of function facilitates recovery by enhancing survival, synapse formation and synaptic plasticity. Implementation of 'BDNF therapies', however, faces numerous methodological and pharmacokinetic issues. Identifying BDNF mimetics that activate the BDNF receptor or downstream targets of BDNF signaling represent an alternative approach. One mechanism that shows great promise is to study the interplay of BDNF and glucocorticoid hormones, a major class of natural steroid secreted during stress reactions and in synchrony with circadian rhythms. While small amounts of glucocorticoids support normal brain function, excess stimulation by these steroid hormones precipitates stress-related affective disorders. To date, however, because of the paucity of knowledge of underlying cellular mechanisms, deleterious effects of glucocorticoids are not prevented following extreme stress. In the present review, we will discuss the complementary roles shared by BDNF and glucocorticoids in synaptic plasticity, and delineate possible signaling mechanisms mediating these effects.
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Affiliation(s)
- F Jeanneteau
- Skirball Institute of Biomolecular Medicine, Department of Cell Biology, NYU School of Medicine, New York, NY 10016, USA.
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Karatsoreos IN, McEwen BS. Resilience and vulnerability: a neurobiological perspective. F1000PRIME REPORTS 2013; 5:13. [PMID: 23710327 PMCID: PMC3643078 DOI: 10.12703/p5-13] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The brain is constantly adapting to a changing environment. It detects environmental stimuli, integrates that information with internal states, and engages appropriate behavioral and physiological responses. This process of stability through change is termed “allostasis”, and serves as a mechanism by which an organism can adapt to a changing environment to function optimally, and ultimately ensure survival. The ability to adapt to stressors in the environment by “bending” but not “breaking” can be considered as “resilience”. Individuals that are more able to withstand such challenges to their stability, and bounce back after, can be considered more resilient than those that do not. This review will explore what resilience means in a neurobiological context, the role of stress and allostasis, and focuses on the role of neurotrophins, particularly BDNF, in mediating adaptive plasticity.
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Affiliation(s)
- Ilia N. Karatsoreos
- Department of Integrative Physiology and Neuroscience, Washington State University, Veterinary and Biomedical Research Building1815 Ferdinand's Lane, Pullman, WA, 99163
| | - Bruce S. McEwen
- Laboratory of Neuroendocrinology, The Rockefeller University, Weiss Research Building1230 York Ave, New York, NY, 10065
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