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Alzoubi KH, Abdel-Hafiz L, Khabour OF, El-Elimat T, Alzubi MA, Alali FQ. Evaluation of the Effect of Hypericum triquetrifolium Turra on Memory Impairment Induced by Chronic Psychosocial Stress in Rats: Role of BDNF. Drug Des Devel Ther 2020; 14:5299-5314. [PMID: 33299301 PMCID: PMC7720289 DOI: 10.2147/dddt.s278153] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 11/14/2020] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Chronic psychosocial stress impairs memory function and leads to a depression-like phenotype induced by a persistent status of oxidative stress. Hypericum perforatum L. (St. John's wort) is widely used to relieve symptoms of anxiety and depression; however, its long-term use is associated with adverse effects. Hypericum triquetrifolium Turra is closely related to H. perforatum. Both plants belong to Hypericaceae family and share many biologically active compounds. Previous work by our group showed that methanolic extracts of H. triquetrifolium have potent antioxidant activity as well as high hypericin content, a component that proved to have stress-relieving and antidepressant effects by other studies. Therefore, we hypothesized that H. triquetrifolium would reduce stress-induced cognitive impairment in a rat model of chronic stress. OBJECTIVE To determine whether chronic treatment with H. triquetrifolium protects against stress-associated memory deficits and to investigate a possible mechanism. METHODS The radial arm water maze (RAWM) was used to test learning and memory in rats exposed to daily stress using the resident-intruder paradigm. Stressed and unstressed rats received chronic H. triquetrifolium or vehicle. We also measured levels of brain-derived neurotrophic factor (BDNF) in the hippocampus, cortex and cerebellum. RESULTS Neither chronic stress nor chronic H. triquetrifolium administration affected performance during acquisition. However, memory tests in the RAWM showed that chronic stress impaired different post-encoding memory stages. H. triquetrifolium prevented this impairment. Furthermore, hippocampal BDNF levels were markedly lower in stressed animals than in unstressed animals, and chronic administration of H triquetrifolium chronic administration protected against this reduction. No significant difference was observed in the effects of chronic stress and/or H. triquetrifolium treatment on BDNF levels in the cerebellum and cortex. CONCLUSION H. triquetrifolium extract can oppose stress-associated hippocampus-dependent memory deficits in a mechanism that may involve BDNF in the hippocampus.
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Affiliation(s)
- Karem H Alzoubi
- Department of Clinical Pharmacy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid22110, Jordan
| | - Laila Abdel-Hafiz
- Institute of Anatomy II, Medical Faculty, Heinrich Heine Universität, Düsseldorf, Germany
- Department of Medicinal Chemistry and Pharmacognosy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid22110, Jordan
| | - Omar F Khabour
- Department of Medical Laboratory Sciences, Jordan University of Science and Technology, Irbid22110, Jordan
| | - Tamam El-Elimat
- Department of Medicinal Chemistry and Pharmacognosy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid22110, Jordan
| | - Mohammad A Alzubi
- Integrative Life Sciences Doctoral Program, Department of Pathology, Virginia Commonwealth University, Richmond, VA, USA
| | - Feras Q Alali
- College of Pharmacy, QU Health, Qatar University, DohaQatar
- Biomedical and Pharmaceutical Research Unit, QU Health, Qatar University, Doha, Qatar
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Misztak P, Pańczyszyn-Trzewik P, Nowak G, Sowa-Kućma M. Epigenetic marks and their relationship with BDNF in the brain of suicide victims. PLoS One 2020; 15:e0239335. [PMID: 32970734 PMCID: PMC7513998 DOI: 10.1371/journal.pone.0239335] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 09/03/2020] [Indexed: 12/15/2022] Open
Abstract
Background Suicide is a common phenomenon affecting people of all ages. There is a strong relationship between suicidal ideation and depressive disorders. Increasing number of studies suggest that epigenetic modifications in certain brain areas are the main mechanism through which environmental and genetic factors interact with each other contributing to the development of mental disorders. To verify this hypothesis, some epigenetic marks: H3K9/14ac, HDAC2/3, H3K27me2 and Sin3a, as well as p-S421-MeCP2/MeCP2 were examined. On the other hand, BDNF protein level were studied. Materials and methods Western blot analysis were performed in the frontal cortex (FCx) and hippocampus (HP) of suicide victims (n = 14) and non-suicidal controls (n = 8). The differences between groups and correlations between selected proteins were evaluated using Mann-Whitney U-test and Spearman’s rank correlation. Results Statistically significant decrease in H3K9/14ac (FCx:↓~23%;HP:↓~33%) combined with increase in HDAC3 (FCx:↑~103%;HP:↑~85% in HP) protein levels in suicides compared to the controls was shown. These alterations were accompanied by an increase in H3K27me2 (FCx:↑45%;HP:↑~59%) and Sin3a (HP:↑50%) levels and decrease in p-S421-MeCP2/MeCP2 protein ratio (HP:↓~55%;FCx:↓~27%). Moreover, reduced BDNF protein level (FCx:↓~43%;HP:↓~28%) in suicides was observed. On the other hand, some significant correlations (e.g. between H3K9/14ac and HDAC2 or between BDNF and p-S421-MeCP2/MeCP2) were demonstrated. Conclusions Our findings confirm the role of epigenetic component and BDNF protein in suicidal behavior. Lowered BDNF protein level in suicides is probably due to decrease in histone acetylation and increased level of factors related with deacetylation and methylation processes, including MeCP2 factor, which may operate bidirectionally (an activator or inhibitor of transcription).
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Affiliation(s)
- Paulina Misztak
- Department of Neurobiology, Maj Institute of Pharmacology, Polish Academy of Sciences, Kraków, Poland
- Chair of Pharmacobiology, Jagiellonian University Medical College, Krakow, Poland
| | - Patrycja Pańczyszyn-Trzewik
- Department of Neurobiology, Maj Institute of Pharmacology, Polish Academy of Sciences, Kraków, Poland
- Department of Human Physiology, Institute of Medical Sciences, Medical College of Rzeszow University, Rzeszow, Poland
| | - Gabriel Nowak
- Department of Neurobiology, Maj Institute of Pharmacology, Polish Academy of Sciences, Kraków, Poland
- Chair of Pharmacobiology, Jagiellonian University Medical College, Krakow, Poland
| | - Magdalena Sowa-Kućma
- Department of Neurobiology, Maj Institute of Pharmacology, Polish Academy of Sciences, Kraków, Poland
- Department of Human Physiology, Institute of Medical Sciences, Medical College of Rzeszow University, Rzeszow, Poland
- * E-mail: ,
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Lima MN, Oliveira HA, Fagundes PM, Estato V, Silva AYO, Freitas RJRX, Passos BABR, Oliveira KS, Batista CN, Vallochi AL, Rocco PRM, Castro-Faria-Neto HC, Maron-Gutierrez T. Mesenchymal stromal cells protect against vascular damage and depression-like behavior in mice surviving cerebral malaria. Stem Cell Res Ther 2020; 11:367. [PMID: 32843073 PMCID: PMC7448996 DOI: 10.1186/s13287-020-01874-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 07/16/2020] [Accepted: 08/04/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Malaria is one of the most critical global infectious diseases. Severe systemic inflammatory diseases, such as cerebral malaria, lead to the development of cognitive and behavioral alterations, such as learning disabilities and loss of memory capacity, as well as increased anxiety and depression. The consequences are profound and usually contribute to reduce the patient's quality of life. There are no therapies to treat the neurological sequelae of cerebral malaria. Mesenchymal stromal cells (MSCs) may be an alternative, since they have been used as therapy for neurodegenerative diseases and traumatic lesions of the central nervous system. So far, no study has investigated the effects of MSC therapy on the blood-brain barrier, leukocyte rolling and adherence in the brain, and depression like-behavior in experimental cerebral malaria. METHODS Male C57BL/6 mice were infected with Plasmodium berghei ANKA (PbA, 1 × 106 PbA-parasitized red blood cells, intraperitoneally). At day 6, PbA-infected animals received chloroquine (25 mg/kg orally for seven consecutive days) as the antimalarial treatment and were then randomized to receive MSCs (1 × 105 cells in 0.05 ml of saline/mouse) or saline (0.05 ml) intravenously. Parasitemia, clinical score, and survival rate were analyzed throughout the experiments. Evans blue assay was performed at 6, 7, and 15 days post-infection (dpi). Behavioral tests were performed at 5 and 15 dpi. Intravital microscopy experiments and brain-derived neurotrophic factor (BDNF) protein expression analyses were performed at 7 dpi, whereas inflammatory mediators were measured at 15 dpi. In vitro, endothelial cells were used to evaluate the effects of conditioned media derived from MSCs (CMMSC) on cell viability by lactate dehydrogenase (LDH) release. RESULTS PbA-infected mice presented increased parasitemia, adherent leukocytes, blood-brain barrier permeability, and reduced BDNF protein levels, as well as depression-like behavior. MSCs mitigated behavioral alterations, restored BDNF and transforming growth factor (TGF)-β protein levels, and reduced blood-brain barrier dysfunction and leukocyte adhesion in the brain microvasculature. In a cultured endothelial cell line stimulated with heme, CMMSC reduced LDH release, suggesting a paracrine mechanism of action. CONCLUSION A single dose of MSCs as adjuvant therapy protected against vascular damage and improved depression-like behavior in mice that survived experimental cerebral malaria.
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Affiliation(s)
- Maiara N Lima
- Laboratory of Immunopharmacology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Fiocruz, Av. Brasil, 4365, Pavilhão 108, sala 45, Manguinhos, Rio de Janeiro, RJ, 21040-360, Brazil
| | - Helena A Oliveira
- Laboratory of Immunopharmacology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Fiocruz, Av. Brasil, 4365, Pavilhão 108, sala 45, Manguinhos, Rio de Janeiro, RJ, 21040-360, Brazil
| | - Paula M Fagundes
- Laboratory of Immunopharmacology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Fiocruz, Av. Brasil, 4365, Pavilhão 108, sala 45, Manguinhos, Rio de Janeiro, RJ, 21040-360, Brazil
| | - Vanessa Estato
- Laboratory of Immunopharmacology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Fiocruz, Av. Brasil, 4365, Pavilhão 108, sala 45, Manguinhos, Rio de Janeiro, RJ, 21040-360, Brazil
| | - Adriano Y O Silva
- Laboratory of Immunopharmacology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Fiocruz, Av. Brasil, 4365, Pavilhão 108, sala 45, Manguinhos, Rio de Janeiro, RJ, 21040-360, Brazil
| | - Rodrigo J R X Freitas
- Laboratory of Immunopharmacology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Fiocruz, Av. Brasil, 4365, Pavilhão 108, sala 45, Manguinhos, Rio de Janeiro, RJ, 21040-360, Brazil
| | - Beatriz A B R Passos
- Laboratory of Immunopharmacology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Fiocruz, Av. Brasil, 4365, Pavilhão 108, sala 45, Manguinhos, Rio de Janeiro, RJ, 21040-360, Brazil
| | - Karina S Oliveira
- Laboratory of Immunopharmacology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Fiocruz, Av. Brasil, 4365, Pavilhão 108, sala 45, Manguinhos, Rio de Janeiro, RJ, 21040-360, Brazil
| | - Camila N Batista
- Laboratory of Immunopharmacology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Fiocruz, Av. Brasil, 4365, Pavilhão 108, sala 45, Manguinhos, Rio de Janeiro, RJ, 21040-360, Brazil
| | - Adriana L Vallochi
- Laboratory of Immunopharmacology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Fiocruz, Av. Brasil, 4365, Pavilhão 108, sala 45, Manguinhos, Rio de Janeiro, RJ, 21040-360, Brazil
| | - Patricia R M Rocco
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- National Institute of Science and Technology for Regenerative Medicine, Rio de Janeiro, RJ, Brazil
| | - Hugo C Castro-Faria-Neto
- Laboratory of Immunopharmacology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Fiocruz, Av. Brasil, 4365, Pavilhão 108, sala 45, Manguinhos, Rio de Janeiro, RJ, 21040-360, Brazil
- National Institute of Science and Technology on Neuroimmunomodulation, Rio de Janeiro, RJ, Brazil
| | - Tatiana Maron-Gutierrez
- Laboratory of Immunopharmacology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Fiocruz, Av. Brasil, 4365, Pavilhão 108, sala 45, Manguinhos, Rio de Janeiro, RJ, 21040-360, Brazil.
- National Institute of Science and Technology on Neuroimmunomodulation, Rio de Janeiro, RJ, Brazil.
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Filipović D, Perić I, Costina V, Stanisavljević A, Gass P, Findeisen P. Social isolation stress-resilient rats reveal energy shift from glycolysis to oxidative phosphorylation in hippocampal nonsynaptic mitochondria. Life Sci 2020; 254:117790. [DOI: 10.1016/j.lfs.2020.117790] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 05/04/2020] [Accepted: 05/12/2020] [Indexed: 11/28/2022]
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Han Z, Wang Y, Qi L, Wang J, Wong J, Chen J, Luo X, Wang QM. Differential Association of Serum BDNF With Poststroke Depression and Poststroke Anxiety. Arch Phys Med Rehabil 2020; 101:1355-1366. [PMID: 32416148 DOI: 10.1016/j.apmr.2020.04.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Revised: 04/08/2020] [Accepted: 04/19/2020] [Indexed: 12/16/2022]
Abstract
OBJECTIVES To investigate the correlation between brain-derived neurotrophic factor (BDNF) and risk factors, as well as functional outcome in poststroke depression (PSD) or poststroke anxiety (PSA). DESIGN Cohort study. SETTING Stroke patients admitted to an urban rehabilitation hospital. PARTICIPANTS Stroke patients (N=162) without any previous history of depression and anxiety. INTERVENTIONS Not applicable. MAIN OUTCOME MEASURES Sociodemographic information and comorbidities were recorded during hospital admission. Functional outcomes were assessed using FIM scores at time of admission and discharge. The influence of various factors such as BDNF and patient characteristics on functional outcome was investigated. Single-factor effect was examined using simple logistic regression, as was multi-factor effect using multiple logistic regression. The goodness-of-fit of those regression models was evaluated by the integrated area under ROC curve. RESULTS PSD was diagnosed in 61 (37.7%) patients, and PSA was diagnosed in 40 (24.7%). Multiple logistic analysis showed that BDNF, divorce or separation, and history of smoking were significantly associated with the occurrence of PSD but not with the occurrence of PSA. The model combining low BDNF level and divorce or separation improved the prediction for PSD. Among the variables analyzed for prediction of functional outcome, serum BDNF had a minimum correlation with motor FIM scores in PSD but no significant correlation with motor FIM scores in PSA. CONCLUSIONS BDNF is a valuable prediction for the occurrence of PSD but not for PSA. More strikingly, ischemic stroke patients who are divorced or separated with low serum BDNF have a much higher risk for PSD. BDNF has a minimum correlation with motor function outcome in PSD but no significant correlation with motor outcome in PSA.
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Affiliation(s)
- Zhenxiang Han
- Stroke Biological Recovery Laboratory, Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Charlestown, MA; Department of Neurology and Rehabilitation, Seventh People's Hospital of Shanghai University of TCM, Shanghai, P.R. China
| | - Yao Wang
- Stroke Biological Recovery Laboratory, Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Charlestown, MA; Department of Rehabilitation Medicine, Nan'ao People's Hospital of Shenzhen, The First Affiliated Hospital, Shenzhen University, Shenzhen, Guangdong, P.R. China
| | - Lili Qi
- Department of Emergency, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of TCM, Shanghai, P.R. China
| | - Jiening Wang
- Department of Neurology and Rehabilitation, Seventh People's Hospital of Shanghai University of TCM, Shanghai, P.R. China
| | - John Wong
- School of Nursing and Department of Occupational Therapy, MGH Institute of Health Professions, Boston, MA
| | - Jiaohua Chen
- Department of Neurology and Rehabilitation, Seventh People's Hospital of Shanghai University of TCM, Shanghai, P.R. China
| | - Xun Luo
- Department of Rehabilitation Medicine, Nan'ao People's Hospital of Shenzhen, The First Affiliated Hospital, Shenzhen University, Shenzhen, Guangdong, P.R. China; Kerry Rehabilitation Medicine Research Institute, Shenzhen, Guangdong, P.R. China
| | - Qing Mei Wang
- Stroke Biological Recovery Laboratory, Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Charlestown, MA.
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Tufano M, Pinna G. Is There a Future for PPARs in the Treatment of Neuropsychiatric Disorders? Molecules 2020; 25:molecules25051062. [PMID: 32120979 PMCID: PMC7179196 DOI: 10.3390/molecules25051062] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 02/20/2020] [Accepted: 02/21/2020] [Indexed: 02/07/2023] Open
Abstract
Recently, peroxisome proliferator-activated receptor (PPAR)-α and γ isoforms have been gaining consistent interest in neuropathology and treatment of neuropsychiatric disorders. Several studies have provided evidence that either the receptor expression or the levels of their endogenously-produced modulators are downregulated in several neurological and psychiatric disorders and in their respective animal models. Remarkably, administration of these endogenous or synthetic ligands improves mood and cognition, suggesting that PPARs may offer a significant pharmacological target to improve several neuropathologies. Furthermore, various neurological and psychiatric disorders reflect sustained levels of systemic inflammation. Hence, the strategy of targeting PPARs for their anti-inflammatory role to improve these disorders is attracting attention. Traditionally, classical antidepressants fail to be effective, specifically in patients with inflammation. Non-steroidal anti-inflammatory drugs exert potent antidepressant effects by acting along with PPARs, thereby strongly substantiating the involvement of these receptors in the mechanisms that lead to development of several neuropathologies. We reviewed running findings in support of a role for PPARs in the treatment of neurological diseases, including Alzheimer's disease or psychiatric disorders, such as major depression. We discuss the opportunity of targeting PPARs as a future pharmacological approach to decrease neuropsychiatric symptoms at the same time that PPAR ligands resolve neuroinflammatory processes.
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Affiliation(s)
| | - Graziano Pinna
- Correspondence: or ; Tel.: +1-312-355-1464; Fax: +1-312-413-4569
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Antidepressant-Like Effects and Cognitive Enhancement of Coadministration of Chaihu Shugan San and Fluoxetine: Dependent on the BDNF-ERK-CREB Signaling Pathway in the Hippocampus and Frontal Cortex. BIOMED RESEARCH INTERNATIONAL 2020; 2020:2794263. [PMID: 32185198 PMCID: PMC7060874 DOI: 10.1155/2020/2794263] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 12/08/2019] [Accepted: 01/04/2020] [Indexed: 02/07/2023]
Abstract
Background Fluoxetine (FLU) is the first-line and widely used medication for depression; however, FLU treatment is almost ineffective in 30%-40% of patients with depression. In addition, there are some problems in FLU treatment, such as delayed efficacy, large side effects, and poor tolerance. Chaihu Shugan San (CSS) is a classic and effective antidepressant Chinese herbal medicine that has been used in China for thousands of years. CSS or coadministration of CSS and FLU has become one of the most recommended methods in the treatment of depression in China. However, the specific pathways of CSS and coadministration of CSS and FLU for antidepressant are still unclear. Objective This study was designed to evaluate the antidepressant effects of CSS and coadministration of CSS and FLU. Methods The chronic unpredictable mild stress (CUMS) rat model was used to simulate depression. 120 healthy adult male Sprague-Dawley (SD) rats were randomly divided into seven groups: the control group, CUMS group, low-dose CSS group, high-dose CSS group, FLU group, coadministration of low-dose CSS and FLU group, and coadministration of high-dose CSS and FLU group. The rats in different groups were given different interventions. Then, the depression-like behavior and cognitive function were evaluated by the sucrose preference test (SPT), forced swimming test (FST), open field test (OFT), and Y-maze test. What is more, the antidepressant mechanism of CSS and coadministration of CSS and FLU were studied through BDNF mRNA, ERK mRNA, CREB mRNA, BDNF, p-ERK/ERK, and p-CREB/CREB levels in the hippocampus and frontal cortex by Western blot and RT-PCR. Results Compared with the CUMS group, CSS and coadministration of CSS and FLU could alleviate the depressive symptoms and improve cognitive function in CUMS rats (p < 0.05); CSS and coadministration of CSS and FLU could increase the expression of BDNF, p-CREB/CREB, p-ERK/ERK, and BDNF mRNA, CREB mRNA, and ERK mRNA in the hippocampus and frontal cortex (p < 0.05); CSS and coadministration of CSS and FLU could increase the expression of BDNF, p-CREB/CREB, p-ERK/ERK, and BDNF mRNA, CREB mRNA, and ERK mRNA in the hippocampus and frontal cortex (p < 0.05); CSS and coadministration of CSS and FLU could increase the expression of BDNF, p-CREB/CREB, p-ERK/ERK, and BDNF mRNA, CREB mRNA, and ERK mRNA in the hippocampus and frontal cortex (Discussion and Conclusion. Finally, we found that both CSS and coadministration of CSS and FLU play an antidepressant role, which may be due to the regulation of the BDNF/ERK/CREB signaling pathway in the hippocampus and frontal cortex. Among them, the coadministration of CSS and FLU can enhance the antidepressant effect of CSS or FLU alone, and the underlying mechanism needs further investigation.
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Zhou XT, Bao WD, Liu D, Zhu LQ. Targeting the Neuronal Activity of Prefrontal Cortex: New Directions for the Therapy of Depression. Curr Neuropharmacol 2020; 18:332-346. [PMID: 31686631 PMCID: PMC7327942 DOI: 10.2174/1570159x17666191101124017] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 09/24/2019] [Accepted: 10/31/2019] [Indexed: 01/05/2023] Open
Abstract
Depression is one of the prevalent psychiatric illnesses with a comprehensive performance such as low self-esteem, lack of motivation, anhedonia, poor appetite, low energy, and uncomfortableness without a specific cause. So far, the cause of depression is not very clear, but it is certain that many aspects of biological psychological and social environment are involved in the pathogenesis of depression. Recently, the prefrontal cortex (PFC) has been indicated to be a pivotal brain region in the pathogenesis of depression. And increasing evidence showed that the abnormal activity of the PFC neurons is linked with depressive symptoms. Unveiling the molecular and cellular, as well as the circuit properties of the PFC neurons will help to find out how abnormalities in PFC neuronal activity are associated with depressive disorders. In addition, concerning many antidepressant drugs, in this review, we concluded the effect of several antidepressants on PFC neuronal activity to better understand its association with depression.
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Affiliation(s)
| | | | | | - Ling-Qiang Zhu
- Address correspondence to this author at the Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China; Tel: 862783692625; Fax: 862783692608; E-mail:
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Hasler G, Haynes M, Müller ST, Tuura R, Ritter C, Buchmann A. The Association Between Adolescent Residential Mobility and Adult Social Anxiety, BDNF and Amygdala-Orbitofrontal Functional Connectivity in Young Adults With Higher Education. Front Psychiatry 2020; 11:561464. [PMID: 33408651 PMCID: PMC7779475 DOI: 10.3389/fpsyt.2020.561464] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 11/30/2020] [Indexed: 11/13/2022] Open
Abstract
Background: Large-scale epidemiological studies demonstrate that house moves during adolescence lead to an increase in anxiety and stress-sensitivity that persists into adulthood. As such, it might be expected that moves during adolescence have strong negative and long-lasting effects on the brain. We hypothesized that moves during adolescence impair fear circuit maturation, as measured by the connectivity between amygdala and orbitofrontal cortex, and expression of brain-derived neurotrophic factor (BDNF). Methods: We examined young adults with middle and high economic status recruited from the community using clinical interviews, self-report questionnaires, functional magnetic resonance imaging during an emotional faces task and during a 10 min rest phase, and serum BDNF serum concentration. Results: Out of 234 young adults, 164 did not move between ages 10 and 16 (i.e., moves with change of school), 50 moved once, and 20 moved twice or more than twice. We found relationships between adolescent moving frequency and social avoidance (pcorr = 0.012), right amygdala-orbitofrontal cortex connectivity (pcorr = 0.016) and low serum BDNF concentrations in young adulthood (pcorr = 0.012). Perceived social status of the mother partly mitigated the effects of moving on social avoidance and BDNF in adulthood. Conclusions: This study confirms previous reports on the negative and persistent effects of residential mobility during adolescence on mental health. It suggests that these effects are mediated by impairments in fear circuit maturation. Finally, it encourages research into protecting factors of moving during adolescents such as the perceived social status of the mother.
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Affiliation(s)
- Gregor Hasler
- Psychiatric University Hospital, University of Bern, Bern, Switzerland.,Unit of Psychiatry Research, University of Fribourg, Fribourg, Switzerland
| | - Melanie Haynes
- Psychiatric University Hospital, University of Bern, Bern, Switzerland
| | - Sabrina Theresia Müller
- Psychiatric University Hospital, University of Bern, Bern, Switzerland.,Center for MR-Research, University Children's Hospital Zurich, Zurich, Switzerland
| | - Ruth Tuura
- Center for MR-Research, University Children's Hospital Zurich, Zurich, Switzerland
| | - Christopher Ritter
- Psychiatric University Hospital, University of Bern, Bern, Switzerland.,Unit of Psychiatry Research, University of Fribourg, Fribourg, Switzerland.,Center for MR-Research, University Children's Hospital Zurich, Zurich, Switzerland
| | - Andreas Buchmann
- Psychiatric University Hospital, University of Bern, Bern, Switzerland.,Unit of Psychiatry Research, University of Fribourg, Fribourg, Switzerland.,Center for MR-Research, University Children's Hospital Zurich, Zurich, Switzerland
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Sjörs Dahlman A, Blennow K, Zetterberg H, Glise K, Jonsdottir IH. Growth factors and neurotrophins in patients with stress-related exhaustion disorder. Psychoneuroendocrinology 2019; 109:104415. [PMID: 31472432 DOI: 10.1016/j.psyneuen.2019.104415] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 07/23/2019] [Accepted: 08/19/2019] [Indexed: 12/27/2022]
Abstract
Growth factors, such as vascular endothelial growth factor (VEGF) and epidermal growth factor (EGF), and neurotrophic factors, including brain-derived neurotophic factor (BDNF), have attracted attention in studies of the biological effects of long-term stress exposure due to their neuroprotective roles. This study investigated whether circulating levels of EGF, VEGF and BDNF were altered in individuals with stress-related exhaustion disorder. Forty patients diagnosed with exhaustion disorder and 40 healthy subjects (50% women) provided fasting blood samples for analysis of EGF, VEGF, and BDNF in plasma. We found significantly lower levels of EGF, VEGF, and BDNF in patients with ED compared to healthy controls. This pattern was seen in both male and female patients. Given the important roles of BDNF and VEGF for brain plasticity and neurogenesis, decreased levels after long-term stress exposure could indicate increased risk of neuronal damage and cognitive impairments in this patient group.
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Affiliation(s)
- Anna Sjörs Dahlman
- The Institute of Stress Medicine, Region Västra Götaland, Gothenburg, Sweden; The Swedish National Road and Transport Research Institute, Gothenburg, Sweden.
| | - Kaj Blennow
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, University of Gothenburg, Sweden; Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
| | - Henrik Zetterberg
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, University of Gothenburg, Sweden; Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden; Department of Neurodegenerative Disease, UCL Institute of Neurology, London, United Kingdom; UK Dementia Research Institute at UCL, London, United Kingdom
| | - Kristina Glise
- The Institute of Stress Medicine, Region Västra Götaland, Gothenburg, Sweden
| | - Ingibjörg H Jonsdottir
- The Institute of Stress Medicine, Region Västra Götaland, Gothenburg, Sweden; Department of Public Health and Community Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
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Cannizzaro E, Ramaci T, Cirrincione L, Plescia F. Work-Related Stress, Physio-Pathological Mechanisms, and the Influence of Environmental Genetic Factors. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:E4031. [PMID: 31640269 PMCID: PMC6843930 DOI: 10.3390/ijerph16204031] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 10/18/2019] [Accepted: 10/19/2019] [Indexed: 12/16/2022]
Abstract
Work-related stress is a growing health problem in modern society. The stress response is characterized by numerous neurochemicals, neuroendocrine and immune modifications that involve various neurological systems and circuits, and regulation of the gene expression of the different receptors. In this regard, a lot of research has focused the attention on the role played by the environment in influencing gene expression, which in turn can control the stress response. In particular, genetic factors can moderate the sensitivities of specific types of neural cells or circuits mediating the imprinting of the environment on different biological systems. In this current review, we wish to analyze systematic reviews and recent experimental research on the physio-pathological mechanisms that underline stress-related responses. In particular, we analyze the relationship between genetic and epigenetic factors in the stress response.
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Affiliation(s)
- Emanuele Cannizzaro
- Department of Health Promotion Sciences Maternal and Infantile Care, Internal Medicine and Medical Specialities "Giuseppe D'Alessandro", University of Palermo, via del Vespro 133, 90127 Palermo, Italy.
| | - Tiziana Ramaci
- Faculty of Human and Social Sciences, Kore University of Enna, 94100 Enna, Italy.
| | - Luigi Cirrincione
- Department of Health Promotion Sciences Maternal and Infantile Care, Internal Medicine and Medical Specialities "Giuseppe D'Alessandro", University of Palermo, via del Vespro 133, 90127 Palermo, Italy.
| | - Fulvio Plescia
- Department of Health Promotion Sciences Maternal and Infantile Care, Internal Medicine and Medical Specialities "Giuseppe D'Alessandro", University of Palermo, via del Vespro 133, 90127 Palermo, Italy.
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Sex and housing conditions modify the effects of adolescent caffeine exposure on anxiety-like and depressive-like behavior in the rat. Behav Pharmacol 2019; 30:539-546. [DOI: 10.1097/fbp.0000000000000489] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Zakopoulou V, Vlaikou AM, Darsinou M, Papadopoulou Z, Theodoridou D, Papageorgiou K, Alexiou GA, Bougias H, Siafaka V, Zoccolotti P, Chroussos GP, Syrrou M, Michaelidis TM. Linking Early Life Hypothalamic-Pituitary-Adrenal Axis Functioning, Brain Asymmetries, and Personality Traits in Dyslexia: An Informative Case Study. Front Hum Neurosci 2019; 13:327. [PMID: 31632253 PMCID: PMC6779713 DOI: 10.3389/fnhum.2019.00327] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 09/05/2019] [Indexed: 12/22/2022] Open
Abstract
Developmental dyslexia (DD) is a multi-system disorder, combining influences of susceptibility genes and environmental factors. The causative interaction between specific genetic factors, brain regions, and personality/mental disorders, as well as specific learning disabilities, has been thoroughly investigated with regard to the approach of developing a multifaceted diagnostic procedure with an intervention strategy potential. In an attempt to add new translational evidence to the interconnection of the above factors in the occurrence of DD, we performed a combinatorial analysis of brain asymmetries, personality traits, cognitive and learning skills, and expression profiles of selected genes in an adult, early diagnosed with DD, and in his son of typical development. We focused on the expression of genes, based on the assumption that the regulation of transcription may be affected by genetic and epigenetic factors. The results highlighted a potential chain link between neuroplasticity-related as well as stress-related genes, such as BDNF, Sox4, mineralocorticoid receptor (MR), and GILZ, leftward asymmetries in the amygdala and selective cerebellum lobules, and tendencies for personality disorders and dyslexia. This correlation may reflect the presence of a specific neuro-epigenetic component of DD, ensuing from the continuous, multifaceted difficulties in the acquisition of cognitive and learning skills, which in turn may act as a fostering mechanism for the onset of long-term disorders. This is in line with recent findings demonstrating a dysfunction in processes supported by rapid neural adaptation in children and adults with dyslexia. Accordingly, the co-evaluation of all the above parameters may indicate a stress-related dyslexia endophenotype that should be carefully considered for a more integrated diagnosis and effective intervention.
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Affiliation(s)
- Victoria Zakopoulou
- Department of Speech and Language Therapy, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Angeliki-Maria Vlaikou
- Laboratory of Biology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Marousa Darsinou
- Department of Biomedical Research, Foundation for Research and Technology-Hellas, Institute of Molecular Biology and Biotechnology, Ioannina, Greece.,Department of Biological Applications and Technologies, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Zoe Papadopoulou
- Laboratory of Biology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Daniela Theodoridou
- Laboratory of Biology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Kyriaki Papageorgiou
- Department of Biomedical Research, Foundation for Research and Technology-Hellas, Institute of Molecular Biology and Biotechnology, Ioannina, Greece.,Department of Biological Applications and Technologies, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - George A Alexiou
- Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Haralambos Bougias
- Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Vassiliki Siafaka
- Department of Speech and Language Therapy, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Pierluigi Zoccolotti
- Neuropsychology Unit, Department of Psychology, IRCCS (National Institute for Research and Treatment) Fondazione Santa Lucia, Sapienza University of Rome, Rome, Italy
| | - George P Chroussos
- First Department of Pediatrics, National and Kapodistrian University of Athens Medical School, "Aghia Sophia" Children's Hospital, Athens, Greece
| | - Maria Syrrou
- Laboratory of Biology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Theologos M Michaelidis
- Department of Biomedical Research, Foundation for Research and Technology-Hellas, Institute of Molecular Biology and Biotechnology, Ioannina, Greece.,Department of Biological Applications and Technologies, School of Health Sciences, University of Ioannina, Ioannina, Greece
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Anand SK, Mondal AC. Neuroanatomical distribution and functions of brain-derived neurotrophic factor in zebrafish (Danio rerio) brain. J Neurosci Res 2019; 98:754-763. [PMID: 31532010 DOI: 10.1002/jnr.24536] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 09/09/2019] [Accepted: 09/09/2019] [Indexed: 01/23/2023]
Abstract
Brain-derived neurotrophic factor (BDNF) is an extensively studied protein that is evolutionarily conserved and widely distributed in the brain of vertebrates. It acts via its cognate receptors TrkB and p75NTR and plays a central role in the developmental neurogenesis, neuronal survival, proliferation, differentiation, synaptic plasticity, learning and memory, adult hippocampal neurogenesis, and brain regeneration. BDNF has also been implicated in a plethora of neurological disorders. Hence, understanding the processes that are controlled by BDNF and their regulating mechanisms is important. Although, BDNF has been thoroughly studied in the mammalian models, contradictory effects of its functions have been reported on several occasions. These contradictory effects may be attributed to the sheer complexity of the mammalian brain. The study of BDNF and its associated functions in a simpler vertebrate model may provide some clarity about the effects of BDNF on the neurophysiology of the brain. Keeping that in mind, this review aims at summarizing the current knowledge about the distribution of BDNF and its associated functions in the zebrafish brain. The main focus of the review is to give a comparative overview of BDNF distribution and function in zebrafish and mammals with respect to distinct life stages. We have also reviewed the regulation of bdnf gene in zebrafish and discussed its role in developmental and adult neurogenesis.
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Affiliation(s)
- Surendra Kumar Anand
- Laboratory of Cellular & Molecular Neurobiology, School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Amal Chandra Mondal
- Laboratory of Cellular & Molecular Neurobiology, School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
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Giacobbo BL, de Freitas BS, Vedovelli K, Schlemmer LM, Pires VN, Antoniazzi V, Santos CDSD, Paludo L, Borges JV, de Lima DB, Schröder N, de Vries EFJ, Bromberg E. Long-term environmental modifications affect BDNF concentrations in rat hippocampus, but not in serum. Behav Brain Res 2019; 372:111965. [PMID: 31125621 DOI: 10.1016/j.bbr.2019.111965] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 04/19/2019] [Accepted: 05/20/2019] [Indexed: 01/01/2023]
Abstract
The role of mBDNF on the beneficial effects of cognitive stimulation on the brain remains controversial, as well as the potential of peripheral mBDNF as a biomarker of environmental effects on its central status. We investigated the effect of different environmental conditions on recognition memory, proBDNF, mBDNF and synaptophysin levels in the hippocampus, and on mBDNF levels in blood. Male Wistar rats (6 and 17 months-old) were assigned to cognitively enriched (EE), standard (SE) and impoverished (IE) environmental conditions for twelve weeks. Novel object recognition was performed at week 10. When the animals were 9 and 20-months old, hippocampus was collected for mBDNF, proBDNF and synaptophysin analysis; serum was analyzed for mBDNF levels. The cognitively EE improved recognition memory, resulted in a trend to increased hippocampal mBDNF and augmented synaptophysin levels. Accordingly, hippocampal mBDNF, proBDNF and synaptophysin were significantly higher in EE than IE animals. Hippocampal mBDNF was positively correlated to proBDNF, cellular and behavioral plasticity markers. No effect of age was seen on the studied variables. Moreover, no significant effects of EE or IE on serum mBDNF were observed. Serum mBDNF also failed to correlate with hippocampal mBDNF, proBDNF and with the cellular and behavioral plasticity markers. These findings indicate that mBDNF is involved in neuronal and behavioral plasticity mechanisms induced by cognitively enriched environments, and that peripheral mBDNF may not always be a reliable biomarker of the effects of environmental settings on central mBDNF and plasticity, which is of special interest from a translational research perspective.
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Affiliation(s)
- Bruno Lima Giacobbo
- Laboratory of Biology and Development of the Nervous System, School of Sciences, Pontifical Catholic University of Rio Grande do Sul, Ipiranga Av. 6681, 90619-900, Porto Alegre, Brazil; Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Hanzeplein 1, P.O. Box 31.001, 9713 GZ, Groningen, the Netherlands
| | - Betânia Souza de Freitas
- Laboratory of Biology and Development of the Nervous System, School of Sciences, Pontifical Catholic University of Rio Grande do Sul, Ipiranga Av. 6681, 90619-900, Porto Alegre, Brazil
| | - Kelem Vedovelli
- Laboratory of Biology and Development of the Nervous System, School of Sciences, Pontifical Catholic University of Rio Grande do Sul, Ipiranga Av. 6681, 90619-900, Porto Alegre, Brazil; Institute of Geriatrics and Gerontology, School of Medicine, Pontifical Catholic University of Rio Grande do Sul, Ipiranga Av. 6690, 90610-000, Porto Alegre, Brazil
| | - Lívia Machado Schlemmer
- Laboratory of Biology and Development of the Nervous System, School of Sciences, Pontifical Catholic University of Rio Grande do Sul, Ipiranga Av. 6681, 90619-900, Porto Alegre, Brazil
| | - Vivian Naziaseno Pires
- Laboratory of Biology and Development of the Nervous System, School of Sciences, Pontifical Catholic University of Rio Grande do Sul, Ipiranga Av. 6681, 90619-900, Porto Alegre, Brazil
| | - Vinicius Antoniazzi
- Laboratory of Biology and Development of the Nervous System, School of Sciences, Pontifical Catholic University of Rio Grande do Sul, Ipiranga Av. 6681, 90619-900, Porto Alegre, Brazil
| | - Cristophod de Souza Dos Santos
- Laboratory of Biology and Development of the Nervous System, School of Sciences, Pontifical Catholic University of Rio Grande do Sul, Ipiranga Av. 6681, 90619-900, Porto Alegre, Brazil
| | - Leticia Paludo
- Laboratory of Biology and Development of the Nervous System, School of Sciences, Pontifical Catholic University of Rio Grande do Sul, Ipiranga Av. 6681, 90619-900, Porto Alegre, Brazil
| | - Juliano Viana Borges
- Laboratory of Biology and Development of the Nervous System, School of Sciences, Pontifical Catholic University of Rio Grande do Sul, Ipiranga Av. 6681, 90619-900, Porto Alegre, Brazil
| | - Daiane Borba de Lima
- Laboratory of Biology and Development of the Nervous System, School of Sciences, Pontifical Catholic University of Rio Grande do Sul, Ipiranga Av. 6681, 90619-900, Porto Alegre, Brazil
| | - Nadja Schröder
- National Institute of Science and Technology for Translational Medicine (INCT-TM), Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Brasília, Brazil; Department of Physiology, Institute for Basic Health Sciences, Universidade Federal do Rio Grande do Sul, Sarmento Leite, 500, 90050-170 Porto Alegre, Brazil
| | - Erik F J de Vries
- Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Hanzeplein 1, P.O. Box 31.001, 9713 GZ, Groningen, the Netherlands
| | - Elke Bromberg
- Laboratory of Biology and Development of the Nervous System, School of Sciences, Pontifical Catholic University of Rio Grande do Sul, Ipiranga Av. 6681, 90619-900, Porto Alegre, Brazil; Institute of Geriatrics and Gerontology, School of Medicine, Pontifical Catholic University of Rio Grande do Sul, Ipiranga Av. 6690, 90610-000, Porto Alegre, Brazil; National Institute of Science and Technology for Translational Medicine (INCT-TM), Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Brasília, Brazil.
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Sosanya NM, Garza TH, Stacey W, Crimmins SL, Christy RJ, Cheppudira BP. Involvement of brain-derived neurotrophic factor (BDNF) in chronic intermittent stress-induced enhanced mechanical allodynia in a rat model of burn pain. BMC Neurosci 2019; 20:17. [PMID: 31014242 PMCID: PMC6480655 DOI: 10.1186/s12868-019-0500-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 04/10/2019] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Reports show that stressful events before injury exacerbates post-injury pain. The mechanism underlying stress-induced heightened thermal pain is unclear. Here, we examined the effects of chronic intermittent stress (CIS) on nociceptive behaviors and brain-derived nerve growth factor (BDNF) system in the prefrontal cortex (PFC) and hypothalamus of rats with and without thermal injury. RESULTS Unstressed rats showed transient mechanical allodynia during stress exposure. Stressed rats with thermal injury displayed persistent exacerbated mechanical allodynia (P < 0.001). Increased expression of BDNF mRNA in the PFC (P < 0.05), and elevated TrkB and p-TrkB (P < 0.05) protein levels in the hypothalamus were observed in stressed rats with thermal injury but not in stressed or thermally injured rats alone. Furthermore, administration of CTX-B significantly reduced stress-induced exacerbated mechanical allodynia in thermally injured rats (P < 0.001). CONCLUSION These results indicate that BDNF-TrkB signaling in PFC and hypothalamus contributes to CIS-induced exacerbated mechanical allodynia in thermal injury state.
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Affiliation(s)
- Natasha M Sosanya
- Battlefield Pain Management Research Group, United States Army Institute of Surgical Research, 3698 Chambers Pass, JBSA Fort Sam Houston, San Antonio, TX, 78234-4504, USA
| | - Thomas H Garza
- Battlefield Pain Management Research Group, United States Army Institute of Surgical Research, 3698 Chambers Pass, JBSA Fort Sam Houston, San Antonio, TX, 78234-4504, USA
| | - Winfred Stacey
- Battlefield Pain Management Research Group, United States Army Institute of Surgical Research, 3698 Chambers Pass, JBSA Fort Sam Houston, San Antonio, TX, 78234-4504, USA
| | - Stephen L Crimmins
- Battlefield Pain Management Research Group, United States Army Institute of Surgical Research, 3698 Chambers Pass, JBSA Fort Sam Houston, San Antonio, TX, 78234-4504, USA
| | - Robert J Christy
- Battlefield Pain Management Research Group, United States Army Institute of Surgical Research, 3698 Chambers Pass, JBSA Fort Sam Houston, San Antonio, TX, 78234-4504, USA
| | - Bopaiah P Cheppudira
- Battlefield Pain Management Research Group, United States Army Institute of Surgical Research, 3698 Chambers Pass, JBSA Fort Sam Houston, San Antonio, TX, 78234-4504, USA.
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Social isolation and social support at adulthood affect epigenetic mechanisms, brain-derived neurotrophic factor levels and behavior of chronically stressed rats. Behav Brain Res 2019; 366:36-44. [PMID: 30880220 DOI: 10.1016/j.bbr.2019.03.025] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 03/07/2019] [Accepted: 03/08/2019] [Indexed: 12/20/2022]
Abstract
Epigenetic modulation of brain-derived neurotrophic factor (BDNF) provides one possible explanation for the dysfunctions induced by stress, such as psychiatric disorders and cognitive decline. Interestingly, social support can be protective against some of these effects, but the mechanisms of social buffering are poorly understood. Conversely, early isolation exacerbates the responses to stressors, although its effects in adulthood remain unclear. This study investigated the effects of social isolation and social buffering on hippocampal epigenetic mechanisms, BDNF levels and behavioral responses of chronically stressed young adult rats. Male Wistar rats (3 months) were assigned to accompanied (paired) or isolated housing. After one-month half of each group was submitted to a chronic unpredictable stress (CUS) protocol for 18 days. Among accompanied animals, only one was exposed to stress. Behavioral analysis encompassed the Open field, plus maze and inhibitory avoidance tasks. Hippocampal H3K9 and H4K12 acetylation, HDAC5 expression and BDNF levels were evaluated. Isolated housing increased HDAC5 expression, decreased H3K9 and H4K12 acetylation, reduced BDNF levels, and impaired long-term memory. Stress affected weight gain, induced anxiety-like behavior and decreased AcK9H3 levels. Interactions between housing conditions and social stress were seen only for HDAC5 expression, which showed a further increase in the isolated + CUS group but remained constant in accompanied animals. In conclusion, social isolation at adulthood induced epigenetic alterations and exacerbated the effects of chronic stress on HDAC5. Notwithstanding, social support counteracted the adverse effects of stress on HDAC5 expression.
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Ledreux A, Håkansson K, Carlsson R, Kidane M, Columbo L, Terjestam Y, Ryan E, Tusch E, Winblad B, Daffner K, Granholm AC, Mohammed AKH. Differential Effects of Physical Exercise, Cognitive Training, and Mindfulness Practice on Serum BDNF Levels in Healthy Older Adults: A Randomized Controlled Intervention Study. J Alzheimers Dis 2019; 71:1245-1261. [PMID: 31498125 PMCID: PMC10896591 DOI: 10.3233/jad-190756] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Previous studies have indicated that an active lifestyle is associated with better brain health and a longer life, compared to a more sedentary lifestyle. These studies, both on human and animal subjects, have typically focused on a single activity, usually physical exercise, but other activities have received an increasing interest. One proposed mechanism is that physical exercise increases levels of brain-derived neurotrophic factor (BDNF) in the brain. For the first time, the long-term effects on serum BDNF levels were compared in persons who engaged in either physical exercise training, cognitive training, or mindfulness practice during 5 weeks, and compared with an active control group. Two cohorts of healthy older individuals, one from the Boston area in the US and one from the Växjö area in Sweden, participated. A total of 146 participants were randomly assigned to one of the four groups. All interventions were structurally similar, using interactive, computer-based software that directed participants to carry out specified activities for 35 minutes/day, 5 days per week for 5 weeks. Blood samples were obtained at baseline and soon after the completion of the 5-week long intervention program, and serum BDNF levels were measured using a commercially available ELISA. Only the group that underwent cognitive training increased their serum BDNF levels after 5 weeks of training (F1,74 = 4.22, p = 0.044, partial η2 = 0.054), corresponding to an average 10% increase. These results strongly suggest that cognitive training can exert beneficial effects on brain health in an older adult population.
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Affiliation(s)
- Aurélie Ledreux
- Knoebel Institute for Healthy Aging, University of Denver, 2155 E Wesley Ave, Denver, CO, USA
| | - Krister Håkansson
- Theme Aging, Karolinska University Hospital, Stockholm, Sweden
- Department of Neurobiology, Care Sciences and Society (NVS), Karolinska Institutet, Stockholm, Sweden
| | - Roger Carlsson
- Department of Psychology, Linnaeus University, Växjö, Sweden
| | - Mhretab Kidane
- Department of Computer Science and Media Technology, Linnaeus University, Växjö, Sweden
| | - Laura Columbo
- Department of Neurosciences, Medical University of South Carolina, 173 Ashley Ave, Charleston, SC, USA
| | | | - Eliza Ryan
- Department of Neurology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Erich Tusch
- Department of Neurology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Bengt Winblad
- Department of Neurobiology, Care Sciences and Society (NVS), Karolinska Institutet, Stockholm, Sweden
| | - Kirk Daffner
- Department of Neurology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Ann-Charlotte Granholm
- Knoebel Institute for Healthy Aging, University of Denver, 2155 E Wesley Ave, Denver, CO, USA
- Department of Neurosciences, Medical University of South Carolina, 173 Ashley Ave, Charleston, SC, USA
- Department of Neurobiology, Care Sciences and Society (NVS), Karolinska Institutet, Stockholm, Sweden
| | - Abdul Kadir H Mohammed
- Department of Psychology, Linnaeus University, Växjö, Sweden
- Department of Neurobiology, Care Sciences and Society (NVS), Karolinska Institutet, Stockholm, Sweden
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Grech AM, Ratnayake U, Hannan AJ, van den Buuse M, Hill RA. Sex-Dependent Effects of Environmental Enrichment on Spatial Memory and Brain-Derived Neurotrophic Factor (BDNF) Signaling in a Developmental "Two-Hit" Mouse Model Combining BDNF Haploinsufficiency and Chronic Glucocorticoid Stimulation. Front Behav Neurosci 2018; 12:227. [PMID: 30356704 PMCID: PMC6189322 DOI: 10.3389/fnbeh.2018.00227] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 09/11/2018] [Indexed: 01/02/2023] Open
Abstract
Neurodevelopmental disorders are thought to be caused by a combination of adverse genetic and environmental insults. The "two-hit" hypothesis suggests that an early first "hit" primes the developing brain to be vulnerable to a second "hit" during adolescence which triggers behavioral dysfunction. We have previously modeled this scenario in mice and found that the combined effect of a genetic hapolinsuffuciency in the brain-derived neurotrophic factor (BDNF) gene (1st hit) and chronic corticosterone (CORT) treatment during adolescence (2nd hit), caused spatial memory impairments in adulthood. Environmental enrichment (EE) protocols are designed to stimulate experience-dependent plasticity and have shown therapeutic actions. This study investigated whether EE can reverse these spatial memory impairments. Wild-type (WT) and BDNF heterozygous (HET) mice were treated with corticosterone (CORT) in their drinking water (50 mg/L) from weeks 6 to 8 and exposed to EE from 7 to 9 weeks. Enriched housing included open top cages with additional toys, tunnels, housing, and platforms. Y-maze novel preference testing, to assess short-term spatial memory, was performed at 10 weeks of age. At week 16 dorsal hippocampus tissue was obtained for Western blot analysis of expression levels of BDNF, the BDNF receptor TrkB, and NMDA receptor subunits, GluNR1, 2A and 2B. As in our previous studies, spatial memory was impaired in our two-hit (BDNF HET + CORT) mice. Simultaneous EE prevented these impairments. However, EE appeared to worsen spatial memory performance in WT mice, particularly those exposed to CORT. While BDNF levels were lower in BDNF HET mice as expected, there were no further effects of CORT or EE in males but a close to significant female CORT × EE × genotype interaction which qualitatively corresponded with Y-maze performance. However, EE caused both sex- and genotype-specific effects on phosphorylated TrkB residues and GluNR expression within the dorsal hippocampus, with GluNR2B levels in males changing in parallel with spatial memory performance. In conclusion, beneficial effects of EE on spatial memory emerge only following two developmental disruptions. The mechanisms by which EE exerts its effects are likely via regulation of multiple activity-dependent pathways, including TrkB and NMDA receptor signaling.
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Affiliation(s)
- Adrienne M. Grech
- Department of Psychiatry, School of Clinical Sciences, Monash Medical Centre, Monash University, Clayton, VIC, Australia
- The Florey Institute of Neuroscience and Mental Health, University of Melbourne, Parkville, VIC, Australia
| | - Udani Ratnayake
- The Florey Institute of Neuroscience and Mental Health, University of Melbourne, Parkville, VIC, Australia
| | - Anthony J. Hannan
- The Florey Institute of Neuroscience and Mental Health, University of Melbourne, Parkville, VIC, Australia
| | - Maarten van den Buuse
- School of Psychology and Public Health, La Trobe University, Melbourne, VIC, Australia
- Department of Pharmacology, University of Melbourne, Melbourne, VIC, Australia
- The College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, QLD, Australia
| | - Rachel A. Hill
- Department of Psychiatry, School of Clinical Sciences, Monash Medical Centre, Monash University, Clayton, VIC, Australia
- The Florey Institute of Neuroscience and Mental Health, University of Melbourne, Parkville, VIC, Australia
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Matt L, Eckert P, Panford-Walsh R, Geisler HS, Bausch AE, Manthey M, Müller NIC, Harasztosi C, Rohbock K, Ruth P, Friauf E, Ott T, Zimmermann U, Rüttiger L, Schimmang T, Knipper M, Singer W. Visualizing BDNF Transcript Usage During Sound-Induced Memory Linked Plasticity. Front Mol Neurosci 2018; 11:260. [PMID: 30127717 PMCID: PMC6089339 DOI: 10.3389/fnmol.2018.00260] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 07/12/2018] [Indexed: 12/14/2022] Open
Abstract
Activity-dependent BDNF (brain-derived neurotrophic factor) expression is hypothesized to be a cue for the context-specificity of memory formation. So far, activity-dependent BDNF cannot be explicitly monitored independently of basal BDNF levels. We used the BLEV (BDNF-live-exon-visualization) reporter mouse to specifically detect activity-dependent usage of Bdnf exon-IV and -VI promoters through bi-cistronic co-expression of CFP and YFP, respectively. Enriching acoustic stimuli led to improved peripheral and central auditory brainstem responses, increased Schaffer collateral LTP, and enhanced performance in the Morris water maze. Within the brainstem, neuronal activity was increased and accompanied by a trend for higher expression levels of Bdnf exon-IV-CFP and exon-VI-YFP transcripts. In the hippocampus BDNF transcripts were clearly increased parallel to changes in parvalbumin expression and were localized to specific neurons and capillaries. Severe acoustic trauma, in contrast, elevated neither Bdnf transcript levels, nor auditory responses, parvalbumin or LTP. Together, this suggests that critical sensory input is essential for recruitment of activity-dependent auditory-specific BDNF expression that may shape network adaptation.
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Affiliation(s)
- Lucas Matt
- Department of Pharmacology, Institute of Pharmacy, Toxicology, and Clinical Pharmacy, University of Tübingen, Tübingen, Germany
| | - Philipp Eckert
- Department of Otolaryngology, Tübingen Hearing Research Centre, Molecular Physiology of Hearing, University of Tübingen, Tübingen, Germany
| | - Rama Panford-Walsh
- Department of Otolaryngology, Tübingen Hearing Research Centre, Molecular Physiology of Hearing, University of Tübingen, Tübingen, Germany
| | - Hyun-Soon Geisler
- Department of Otolaryngology, Tübingen Hearing Research Centre, Molecular Physiology of Hearing, University of Tübingen, Tübingen, Germany
| | - Anne E Bausch
- Department of Pharmacology, Institute of Pharmacy, Toxicology, and Clinical Pharmacy, University of Tübingen, Tübingen, Germany
| | - Marie Manthey
- Department of Otolaryngology, Tübingen Hearing Research Centre, Molecular Physiology of Hearing, University of Tübingen, Tübingen, Germany
| | - Nicolas I C Müller
- Animal Physiology Group, Department of Biology, University of Kaiserslautern, Kaiserslautern, Germany
| | - Csaba Harasztosi
- Section of Physiological Acoustics and Communication, Department of Otolaryngology, Tübingen Hearing Research Center, University of Tübingen, Tübingen, Germany
| | - Karin Rohbock
- Department of Otolaryngology, Tübingen Hearing Research Centre, Molecular Physiology of Hearing, University of Tübingen, Tübingen, Germany
| | - Peter Ruth
- Department of Pharmacology, Institute of Pharmacy, Toxicology, and Clinical Pharmacy, University of Tübingen, Tübingen, Germany
| | - Eckhard Friauf
- Animal Physiology Group, Department of Biology, University of Kaiserslautern, Kaiserslautern, Germany
| | - Thomas Ott
- Transgenic Facility Tübingen, University of Tübingen, Tübingen, Germany
| | - Ulrike Zimmermann
- Department of Otolaryngology, Tübingen Hearing Research Centre, Molecular Physiology of Hearing, University of Tübingen, Tübingen, Germany
| | - Lukas Rüttiger
- Department of Otolaryngology, Tübingen Hearing Research Centre, Molecular Physiology of Hearing, University of Tübingen, Tübingen, Germany
| | - Thomas Schimmang
- Instituto de Biologíay Genética Molecular, Universidad de Valladolid, Consejo Superior de Investigaciones Científicas (CSIC), Valladolid, Spain
| | - Marlies Knipper
- Department of Otolaryngology, Tübingen Hearing Research Centre, Molecular Physiology of Hearing, University of Tübingen, Tübingen, Germany
| | - Wibke Singer
- Department of Otolaryngology, Tübingen Hearing Research Centre, Molecular Physiology of Hearing, University of Tübingen, Tübingen, Germany
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Neurobiological links between depression and AD: The role of TGF-β1 signaling as a new pharmacological target. Pharmacol Res 2018; 130:374-384. [DOI: 10.1016/j.phrs.2018.02.007] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 02/03/2018] [Accepted: 02/07/2018] [Indexed: 12/19/2022]
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