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Conrad CD, Peay DN, Acuña AM, Whittaker K, Donnay ME. Corticosterone disrupts spatial working memory during retention testing when highly taxed, which positively correlates with depressive-like behavior in middle-aged, ovariectomized female rats. Horm Behav 2024; 164:105600. [PMID: 39003890 PMCID: PMC11330725 DOI: 10.1016/j.yhbeh.2024.105600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 07/03/2024] [Accepted: 07/03/2024] [Indexed: 07/16/2024]
Abstract
Major Depressive Disorder affects 8.4 % of the U.S. population, particularly women during perimenopause. This study implemented a chronic corticosterone manipulation (CORT, a major rodent stress hormone) using middle-aged, ovariectomized female rats to investigate depressive-like behavior, anxiety-like symptoms, and cognitive ability. CORT (400 μg/ml, in drinking water) was administered for four weeks before behavioral testing began and continued throughout all behavioral assessments. Compared to vehicle-treated rats, CORT significantly intensified depressive-like behaviors: CORT decreased sucrose preference, enhanced immobility on the forced swim test, and decreased sociability on a choice task between a novel conspecific female rat and an inanimate object. Moreover, CORT enhanced anxiety-like behavior on a marble bury task by reducing time investigating tabasco-topped marbles. No effects were observed on novelty suppressed feeding or the elevated plus maze. For spatial working memory using an 8-arm radial arm maze, CORT did not alter acquisition but disrupted performance during retention. CORT enhanced the errors committed during the highest working memory load following a delay and during the last trial requiring the most items to remember; this cognitive metric positively correlated with a composite depressive-like score to reveal that as depressive-like symptoms increased, cognitive performance worsened. This protocol allowed for the inclusion of multiple behavioral assessments without stopping the CORT treatment needed to produce a MDD phenotype and to assess a battery of behaviors. Moreover, that when middle-age was targeted, chronic CORT produced a depressive-like phenotype in ovariectomized females, who also comorbidly expressed aspects of anxiety and cognitive dysfunction.
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Affiliation(s)
- Cheryl D Conrad
- Arizona State University, Department of Psychology, Box 1104, Tempe 85287, AZ, United States.
| | - Dylan N Peay
- Arizona State University, Department of Psychology, Box 1104, Tempe 85287, AZ, United States
| | - Amanda M Acuña
- Arizona State University, Department of Psychology, Box 1104, Tempe 85287, AZ, United States
| | - Kennedy Whittaker
- Arizona State University, Department of Psychology, Box 1104, Tempe 85287, AZ, United States
| | - Megan E Donnay
- Arizona State University, Department of Psychology, Box 1104, Tempe 85287, AZ, United States
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2
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Tsimpolis A, Kalafatakis K, Charalampopoulos I. Recent advances in the crosstalk between the brain-derived neurotrophic factor and glucocorticoids. Front Endocrinol (Lausanne) 2024; 15:1362573. [PMID: 38645426 PMCID: PMC11027069 DOI: 10.3389/fendo.2024.1362573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Accepted: 03/25/2024] [Indexed: 04/23/2024] Open
Abstract
Brain-derived neurotrophic factor (BDNF), a key neurotrophin within the brain, by selectively activating the TrkB receptor, exerts multimodal effects on neurodevelopment, synaptic plasticity, cellular integrity and neural network dynamics. In parallel, glucocorticoids (GCs), vital steroid hormones, which are secreted by adrenal glands and rapidly diffused across the mammalian body (including the brain), activate two different groups of intracellular receptors, the mineralocorticoid and the glucocorticoid receptors, modulating a wide range of genomic, epigenomic and postgenomic events, also expressed in the neural tissue and implicated in neurodevelopment, synaptic plasticity, cellular homeostasis, cognitive and emotional processing. Recent research evidences indicate that these two major regulatory systems interact at various levels: they share common intracellular downstream pathways, GCs differentially regulate BDNF expression, under certain conditions BDNF antagonises the GC-induced effects on long-term potentiation, neuritic outgrowth and cellular death, while GCs regulate the intraneuronal transportation and the lysosomal degradation of BDNF. Currently, the BDNF-GC crosstalk features have been mainly studied in neurons, although initial findings show that this crosstalk could be equally important for other brain cell types, such as astrocytes. Elucidating the precise neurobiological significance of BDNF-GC interactions in a tempospatial manner, is crucial for understanding the subtleties of brain function and dysfunction, with implications for neurodegenerative and neuroinflammatory diseases, mood disorders and cognitive enhancement strategies.
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Affiliation(s)
- Alexandros Tsimpolis
- Department of Pharmacology, Medical School, University of Crete, Heraklion, Greece
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology Hellas (IMBB-FORTH), Heraklion, Greece
| | - Konstantinos Kalafatakis
- Department of Pharmacology, Medical School, University of Crete, Heraklion, Greece
- Faculty of Medicine and Dentistry (Malta Campus), Queen Mary University of London, Victoria, Malta
| | - Ioannis Charalampopoulos
- Department of Pharmacology, Medical School, University of Crete, Heraklion, Greece
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology Hellas (IMBB-FORTH), Heraklion, Greece
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3
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Piao J, Wang Y, Zhang T, Zhao J, Lv Q, Ruan M, Yu Q, Li B. Antidepressant-like Effects of Representative Types of Food and Their Possible Mechanisms. Molecules 2023; 28:6992. [PMID: 37836833 PMCID: PMC10574116 DOI: 10.3390/molecules28196992] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 09/22/2023] [Accepted: 09/30/2023] [Indexed: 10/15/2023] Open
Abstract
Depression is a mental disorder characterized by low mood, lack of motivation, negative cognitive outlook, and sleep problems. Suicide may occur in severe cases, although suicidal thoughts are not seen in all cases. Globally, an estimated 350 million individuals grapple with depression, as reported by the World Health Organization. At present, drug and psychological treatments are the main treatments, but they produce insufficient responses in many patients and fail to work at all in many others. Consequently, treating depression has long been an important topic in society. Given the escalating prevalence of depression, a comprehensive strategy for managing its symptoms and impacts has garnered significant attention. In this context, nutritional psychiatry emerges as a promising avenue. Extensive research has underscored the potential benefits of a well-rounded diet rich in fruits, vegetables, fish, and meat in alleviating depressive symptoms. However, the intricate mechanisms linking dietary interventions to brain function alterations remain largely unexplored. This review delves into the intricate relationship between dietary patterns and depression, while exploring the plausible mechanisms underlying the impact of dietary interventions on depression management. As we endeavor to unveil the pathways through which nutrition influences mental well-being, a holistic perspective that encompasses multidisciplinary strategies gains prominence, potentially reshaping how we approach and address depression.
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Affiliation(s)
- Jingjing Piao
- Jilin Provincial Key Laboratory for Molecular and Chemical Genetics, The Second Hospital of Jilin University, Changchun 130041, China; (J.P.); (T.Z.); (J.Z.); (Q.L.); (M.R.); (Q.Y.)
- Engineering Laboratory for Screening of Antidepressant Drugs, Jilin Province Development and Reform Commission, Changchun 130041, China
| | - Yingwei Wang
- Changchun Zhuoyi Biological Co., Ltd., Changchun 130616, China;
| | - Tianqi Zhang
- Jilin Provincial Key Laboratory for Molecular and Chemical Genetics, The Second Hospital of Jilin University, Changchun 130041, China; (J.P.); (T.Z.); (J.Z.); (Q.L.); (M.R.); (Q.Y.)
- Engineering Laboratory for Screening of Antidepressant Drugs, Jilin Province Development and Reform Commission, Changchun 130041, China
| | - Jiayu Zhao
- Jilin Provincial Key Laboratory for Molecular and Chemical Genetics, The Second Hospital of Jilin University, Changchun 130041, China; (J.P.); (T.Z.); (J.Z.); (Q.L.); (M.R.); (Q.Y.)
- Engineering Laboratory for Screening of Antidepressant Drugs, Jilin Province Development and Reform Commission, Changchun 130041, China
| | - Qianyu Lv
- Jilin Provincial Key Laboratory for Molecular and Chemical Genetics, The Second Hospital of Jilin University, Changchun 130041, China; (J.P.); (T.Z.); (J.Z.); (Q.L.); (M.R.); (Q.Y.)
- Engineering Laboratory for Screening of Antidepressant Drugs, Jilin Province Development and Reform Commission, Changchun 130041, China
| | - Mengyu Ruan
- Jilin Provincial Key Laboratory for Molecular and Chemical Genetics, The Second Hospital of Jilin University, Changchun 130041, China; (J.P.); (T.Z.); (J.Z.); (Q.L.); (M.R.); (Q.Y.)
- Engineering Laboratory for Screening of Antidepressant Drugs, Jilin Province Development and Reform Commission, Changchun 130041, China
| | - Qin Yu
- Jilin Provincial Key Laboratory for Molecular and Chemical Genetics, The Second Hospital of Jilin University, Changchun 130041, China; (J.P.); (T.Z.); (J.Z.); (Q.L.); (M.R.); (Q.Y.)
- Engineering Laboratory for Screening of Antidepressant Drugs, Jilin Province Development and Reform Commission, Changchun 130041, China
| | - Bingjin Li
- Jilin Provincial Key Laboratory for Molecular and Chemical Genetics, The Second Hospital of Jilin University, Changchun 130041, China; (J.P.); (T.Z.); (J.Z.); (Q.L.); (M.R.); (Q.Y.)
- Engineering Laboratory for Screening of Antidepressant Drugs, Jilin Province Development and Reform Commission, Changchun 130041, China
- Jilin Provincial Key Laboratory on Target of Traditional Chinese Medicine with Anti-Depressive Effect, Changchun 130041, China
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Ibi D, Nakasai G, Sawahata M, Takaba R, Kinoshita M, Yamada K, Hiramatsu M. Emotional behaviors as well as the hippocampal reelin expression in C57BL/6N male mice chronically treated with corticosterone. Pharmacol Biochem Behav 2023; 230:173617. [PMID: 37562494 DOI: 10.1016/j.pbb.2023.173617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 08/03/2023] [Accepted: 08/06/2023] [Indexed: 08/12/2023]
Abstract
Depression is a common psychiatric disorder affecting around 300 million people worldwide. Serum cortisol and glucocorticoid levels in humans are reportedly higher in patients with depression compared to controls. Furthermore, rodents repeatedly treated with exogenous corticosterone (CORT), a glucocorticoid in rodents, exhibit deficits in emotional behaviors. To confirm the availability of mice with chronic CORT treatment as an animal model of depression, we investigated the effect of chronic CORT treatment on depression-like behavioral and neuropathological phenotypes in C57BL/6N male mice. Behavioral studies showed depression- and anxiety-like behaviors in mice treated with CORT compared with control mice in the forced-swim and elevated-plus maze tests. Additionally, treated mice represented anhedonia and social behavior impairments in the sucrose preference and social interaction tests, respectively. Brains of depression patients have altered expression of reelin, an extracellular matrix protein involved in neuronal development and function. Likewise, in the present study, mice with chronic CORT treatment also exhibited reelin downregulation in cells of the hippocampus. Hence, we investigated therapeutic effects of reelin supplementation on CORT-induced behavioral abnormalities in mice. Microinjections of recombinant reelin protein into the hippocampus did not rescue behavioral deficits in mice with chronic CORT treatment. These results suggest that C57BL/6N male mice chronically treated with CORT are a suitable animal depression model, in which depressive behaviors may occur independently of the alternation of hippocampal Reelin expression.
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Affiliation(s)
- Daisuke Ibi
- Department of Chemical Pharmacology, Graduate School of Pharmacy, Meijo University, Nagoya 468-8503, Japan; Department of Chemical Pharmacology, Faculty of Pharmacy, Meijo University, Nagoya 468-8503, Japan.
| | - Genki Nakasai
- Department of Chemical Pharmacology, Graduate School of Pharmacy, Meijo University, Nagoya 468-8503, Japan
| | - Masahito Sawahata
- Department of Neuropsychopharmacology and Hospital Pharmacy, Nagoya University Graduate School of Medicine, Nagoya 466-8560, Japan
| | - Rika Takaba
- Department of Chemical Pharmacology, Graduate School of Pharmacy, Meijo University, Nagoya 468-8503, Japan
| | - Maho Kinoshita
- Department of Chemical Pharmacology, Faculty of Pharmacy, Meijo University, Nagoya 468-8503, Japan
| | - Kiyofumi Yamada
- Department of Neuropsychopharmacology and Hospital Pharmacy, Nagoya University Graduate School of Medicine, Nagoya 466-8560, Japan
| | - Masayuki Hiramatsu
- Department of Chemical Pharmacology, Graduate School of Pharmacy, Meijo University, Nagoya 468-8503, Japan; Department of Chemical Pharmacology, Faculty of Pharmacy, Meijo University, Nagoya 468-8503, Japan.
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5
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Huang J, Chen B, Wang H, Hu S, Yu X, Reilly J, He Z, You Y, Shu X. Dihydromyricetin Attenuates Depressive-like Behaviors in Mice by Inhibiting the AGE-RAGE Signaling Pathway. Cells 2022; 11:cells11233730. [PMID: 36496991 PMCID: PMC9738449 DOI: 10.3390/cells11233730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/17/2022] [Accepted: 11/17/2022] [Indexed: 11/24/2022] Open
Abstract
Depression is a complex mental disorder, affecting approximately 280 million individuals globally. The pathobiology of depression is not fully understood, and the development of new treatments is urgently needed. Dihydromyricetin (DHM) is a natural flavanone, mainly distributed in Ampelopsis grossedentata. DHM has demonstrated a protective role against cardiovascular disease, diabetes, liver disease, cancer, kidney injury and neurodegenerative disorders. In the present study, we examined the protective effect of DHM against depression in a chronic depression mouse model induced by corticosterone (CORT). Animals exposed to CORT displayed depressive-like behaviors; DHM treatment reversed these behaviors. Network pharmacology analyses showed that DHM's function against depression involved a wide range of targets and signaling pathways, among which the inflammation-linked targets and signaling pathways were critical. Western blotting showed that CORT-treated animals had significantly increased levels of the advanced glycation end product (AGE) and receptor of AGE (RAGE) in the hippocampus, implicating activation of the AGE-RAGE signaling pathway. Furthermore, enzyme-linked immunosorbent assay (ELISA) detected a marked increase in the production of proinflammatory cytokines, interleukin-1 beta (IL-1β), IL-6 and tumor necrosis factor-alpha (TNFα) in the hippocampus of CORT-treated mice. DHM administration significantly counteracted these CORT-induced changes. These findings suggest that protection against depression by DHM is mediated by suppression of neuroinflammation, predominantly via the AGE-RAGE signaling pathway.
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Affiliation(s)
- Jun Huang
- School of Basic Medical Sciences, Shaoyang University, Shaoyang 422000, China
| | - Bin Chen
- Department of Neurology, The Second Affiliated Hospital of Hainan Medical University, Haikou 570100, China
| | - Hao Wang
- School of Basic Medical Sciences, Shaoyang University, Shaoyang 422000, China
| | - Sheng Hu
- Department of Neurology, The Second Affiliated Hospital of Hainan Medical University, Haikou 570100, China
- The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421001, China
| | - Xudong Yu
- School of Basic Medical Sciences, Shaoyang University, Shaoyang 422000, China
| | - James Reilly
- Department of Biological and Biomedical Sciences, Glasgow Caledonian University, Glasgow G4 0BA, UK
| | - Zhiming He
- School of Basic Medical Sciences, Shaoyang University, Shaoyang 422000, China
| | - Yong You
- Department of Neurology, The Second Affiliated Hospital of Hainan Medical University, Haikou 570100, China
- The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421001, China
- Correspondence: (Y.Y.); (X.S.)
| | - Xinhua Shu
- School of Basic Medical Sciences, Shaoyang University, Shaoyang 422000, China
- Department of Biological and Biomedical Sciences, Glasgow Caledonian University, Glasgow G4 0BA, UK
- Correspondence: (Y.Y.); (X.S.)
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6
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Bai Y, Dai G, Song L, Gu X, Ba N, Ju W, Zhang W. Potential Anti-Depressive Effects and Mechanisms of Zhi-Zi Hou-Po Decoction Using Behavioral Despair Tests Combined With in Vitro Approaches. Front Pharmacol 2022; 13:918776. [PMID: 35873590 PMCID: PMC9298739 DOI: 10.3389/fphar.2022.918776] [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: 04/12/2022] [Accepted: 06/15/2022] [Indexed: 11/13/2022] Open
Abstract
Zhi-Zi Hou-Po Decoction (ZHD) has been widely used in the treatment of depression for centuries. This study aimed to investigate the antidepressant effects of the water extract of ZHD (ZHD-WE) and ethanol extract of ZHD (ZHD-EE) using behavioral despair tests in mice, and to further explore the neuroprotective effects in a PC12 cell injury model induced by corticosterone (CORT). Mice were divided into a control group (normal saline), ZHD-WE groups (4, 8, and 16 g kg-1), ZHD-EE groups (4, 8, and 16 g kg-1) and the fluoxetine group (20 mg kg-1). The forced swimming test (FST) and tail suspension test (TST) were used to screen the antidepressant effects of ZHD-WE and ZHD-EE after oral administration for seven consecutive days. The level of brain-derived neurotrophic factor (BDNF) in the hippocampus was determined by ELISA. The MTT, lactate dehydrogenase (LDH) and flow cytometry analysis were performed to elucidate the neuroprotective effect of ZHD-EE on a PC12 cell injury model. Additionally, the mRNA and proteins expression of apoptotic molecules Bax, Bcl-2 and BDNF were detected by RT-PCR and western blot assay. It showed that ZHD-EE at concentrations of 8 and 16 g kg-1 significantly decreased the immobility time in the TST and FST, and increased the BDNF levels in the hippocampus. While ZHD-WE at concentrations of 4, 8, and 16 g kg-1 had no significant effect on the immobility time in the TST, and only the 16 g kg-1 of extract group significantly decreased the immobility time in the FST. In vitro, the obtained results showed that PC12 cells pre-incubated with ZHD-EE at concentrations of 100 and 400 μg ml-1 improved cell viability, decreased LDH release, and reduced apoptosis rate of PC12 cells. Moreover, ZHD-EE significantly increased the mRNA and proteins expression of Bcl-2 and BDNF, while decreased the mRNA and protein expression of Bax. ZHD-EE significantly improved despair-like behavior in mice, and its mechanism may be related to BDNF upregulation in the hippocampus. This study also showed that ZHD-EE had a protective effect on CORT-induced injury in PC12 cells by upregulating the expression of BDNF and restoring Bcl-2/Bax balance.
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Affiliation(s)
- Yongtao Bai
- Department of Pharmacy, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, China.,Clinical Research Center, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, China
| | - Guoliang Dai
- Department of Clinical Pharmacology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Lihua Song
- Department of Pharmacy, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, China
| | - Xiaolei Gu
- Clinical Research Center, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, China
| | - Ning Ba
- Clinical Research Center, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, China
| | - Wenzheng Ju
- Department of Clinical Pharmacology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Wenzhou Zhang
- Department of Pharmacy, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, China
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Lange ME, Uwiera RRE, Inglis GD. Enteric Escherichia coli O157:H7 in Cattle, and the Use of Mice as a Model to Elucidate Key Aspects of the Host-Pathogen-Microbiota Interaction: A Review. Front Vet Sci 2022; 9:937866. [PMID: 35898542 PMCID: PMC9310005 DOI: 10.3389/fvets.2022.937866] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 06/02/2022] [Indexed: 11/24/2022] Open
Abstract
Enterohemorrhagic Escherichia coli (EHEC) serotype O157:H7 is responsible for foodborne disease outbreaks, typically associated with the consumption of undercooked foods contaminated with cattle manure containing the bacterium. At present, effective mitigations do not exist. Many of the factors regulating enteric colonization by E. coli O157:H7 in cattle, and how cattle respond to the bacterium are unknown. In this regard, intestinal colonization locations, shedding patterns, interactions with the enteric microbiota, and host immune responses to infection are current knowledge gaps. As disturbances to host homeostasis are believed to play an important role in the enteric survival of the bacterium, it is important to consider the potential importance of stress during cattle production. Husbandry logistics, cost, and the high genetic, physiological, and microbial heterogeneity in cattle has greatly hampered the ability of researchers to elucidate key aspects of the host-pathogen-microbiota interaction. Although mice have not been extensively used as a cattle model, the utilization of murine models has the potential to identify mechanisms to facilitate hypothesis formulation and efficacy testing in cattle. Murine models have been effectively used to mechanistically examine colonization of the intestine, host responses to infection, and to interactively ascertain how host physiological status (e.g., due to physiological stress) and the enteric microbiota influences colonization and disease. In addition to reviewing the relevant literature on intestinal colonization and pathogenesis, including existing knowledge gaps, the review provides information on how murine models can be used to elucidate mechanisms toward the development of rationale-based mitigations for E. coli O157:H7 in cattle.
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Affiliation(s)
- Maximo E. Lange
- Agriculture and Agri-Food Canada, Lethbridge Research and Development Centre, Lethbridge, AB, Canada
| | - Richard R. E. Uwiera
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | - G. Douglas Inglis
- Agriculture and Agri-Food Canada, Lethbridge Research and Development Centre, Lethbridge, AB, Canada
- *Correspondence: G. Douglas Inglis
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D-Amino Acids as a Biomarker in Schizophrenia. Diseases 2022; 10:diseases10010009. [PMID: 35225861 PMCID: PMC8883943 DOI: 10.3390/diseases10010009] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 01/28/2022] [Accepted: 01/28/2022] [Indexed: 02/04/2023] Open
Abstract
D-amino acids may play key roles for specific physiological functions in different organs including the brain. Importantly, D-amino acids have been detected in several neurological disorders such as schizophrenia, amyotrophic lateral sclerosis, and age-related disorders, reflecting the disease conditions. Relationships between D-amino acids and neurophysiology may involve the significant contribution of D-Serine or D-Aspartate to the synaptic function, including neurotransmission and synaptic plasticity. Gut-microbiota could play important roles in the brain-function, since bacteria in the gut provide a significant contribution to the host pool of D-amino acids. In addition, the alteration of the composition of the gut microbiota might lead to schizophrenia. Furthermore, D-amino acids are known as a physiologically active substance, constituting useful biomarkers of several brain disorders including schizophrenia. In this review, we wish to provide an outline of the roles of D-amino acids in brain health and neuropsychiatric disorders with a focus on schizophrenia, which may shed light on some of the superior diagnoses and/or treatments of schizophrenia.
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Song L, Wu X, Wang J, Guan Y, Zhang Y, Gong M, Wang Y, Li B. Antidepressant effect of catalpol on corticosterone-induced depressive-like behavior involves the inhibition of HPA axis hyperactivity, central inflammation and oxidative damage probably via dual regulation of NF-κB and Nrf2. Brain Res Bull 2021; 177:81-91. [PMID: 34500039 DOI: 10.1016/j.brainresbull.2021.09.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 09/02/2021] [Accepted: 09/03/2021] [Indexed: 12/24/2022]
Abstract
This study aimed to investigate the antidepressant effect and mechanism of catalpol on corticosterone (CORT)-induced depressive-like behavior in mice for the first time. As a result, CORT injection induced depressive-like behaviors of mice in behavioral tests, aggravated the serum CORT, adrenocorticotropic hormone, and corticotropin-releasing hormone levels, and conspicuously elevated the phosphorylations of nuclear factor kappa-B (NF-κB) in the hippocampus and frontal cortex, and down-regulated the expression levels of nuclear factor erythroid-2-related factor 2 (Nrf2). Furthermore, CORT exposure dramatically augmented the levels of inflammatory factors (interleukin-1β, tumor necrosis factor-α, nitric oxide synthase, and nitric oxide) and lipid peroxidation product malondialdehyde, and attenuated the levels of antioxidants including reduced glutathione, glutathione S-transferase, total superoxide dismutase, and heme oxygenase-1 in the mouse hippocampus and frontal cortex. On the contrary, catalpol administration markedly suppressed the abnormalities of the above indicators. From the overall results, this study displayed that catalpol exerted a beneficial effect on CORT-induced depressive-like behavior in mice possibly via the inhibition of hypothalamus-pituitary-adrenal (HPA) axis hyperactivity, central inflammation and oxidative damage at least partially through dual regulation of NF-κB and Nrf2.
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Affiliation(s)
- Lingling Song
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China
| | - Xiaohui Wu
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China
| | - Junming Wang
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China; Co-construction Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases by Henan & Education Ministry of P.R. China, Henan University of Chinese Medicine, Zhengzhou, 450046, China.
| | - Yuechen Guan
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China
| | - Yueyue Zhang
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China
| | - Mingzhu Gong
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China
| | - Yanmei Wang
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China
| | - Bingyin Li
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China
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Amigo J, Garro-Martinez E, Vidal Casado R, Compan V, Pilar-Cuéllar F, Pazos A, Díaz A, Castro E. 5-HT 4 Receptors Are Not Involved in the Effects of Fluoxetine in the Corticosterone Model of Depression. ACS Chem Neurosci 2021; 12:2036-2044. [PMID: 33974408 PMCID: PMC8459452 DOI: 10.1021/acschemneuro.1c00158] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
![]()
Clinical
and preclinical studies report the implication of 5-hydroxytryptamine
4 receptors (5-HT4Rs) in depression and anxiety. Here,
we tested whether the absence of 5-HT4Rs influences the response to
the antidepressant fluoxetine in mice subjected to chronic corticosterone
administration, an animal model of depression and anxiety. Therefore,
the effects of chronic administration of fluoxetine in corticosterone-treated
wild-type (WT) and 5-HT4R knockout (KO) mice were evaluated
in the open-field and novelty suppressed feeding tests. As 5-HT1A receptor (5-HT1AR) and brain-derived neurotrophic
factor (BDNF) are critically involved in depression and anxiety, we
further evaluated 5-HT1A receptor functionality by [35S]GTPγS autoradiography and BDNF mRNA expression by in situ hybridization techniques. We found that 5-HT4R KO and WT mice displayed anxiety- and depressive-like behavior
following chronic administration of corticosterone, as evidenced in
the open-field and novelty suppressed feeding tests. In the open-field,
a decreased central activity was observed in naïve and
corticosterone-treated mice of both genotypes following chronic fluoxetine
administration. In the novelty suppressed feeding test, a predictive
paradigm of antidepressant activity, chronic treatment with fluoxetine
reverted the latency to eat in both genotypes. The antidepressant
also potentiated the corticosterone-induced desensitization of the
5-HT1AR in the dorsal raphe nucleus. Further, chronic fluoxetine
increased BDNF mRNA expression in the dentate gyrus of the hippocampus
in corticosterone-treated mice of both genotypes. Therefore, our findings
indicate that the behavioral effects of fluoxetine in the corticosterone
model of depression and anxiety appear not to be dependent on 5-HT4Rs.
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Affiliation(s)
- Josep Amigo
- Instituto de Biomedicina y Biotecnología de Cantabria, IBBTEC (Universidad de Cantabria, CSIC, SODERCAN), Departamento de Fisiología y Farmacología, Universidad de Cantabria, 39011 Santander, Spain
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Emilio Garro-Martinez
- Instituto de Biomedicina y Biotecnología de Cantabria, IBBTEC (Universidad de Cantabria, CSIC, SODERCAN), Departamento de Fisiología y Farmacología, Universidad de Cantabria, 39011 Santander, Spain
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Rebeca Vidal Casado
- Departamento de Farmacología, Facultad de Medicina, Universidad Complutense, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), 28040 Madrid, Spain
- Red de Trastornos Adictivos del Instituto de Salud Carlos III, 28029 Madrid, Spain
| | | | - Fuencisla Pilar-Cuéllar
- Instituto de Biomedicina y Biotecnología de Cantabria, IBBTEC (Universidad de Cantabria, CSIC, SODERCAN), Departamento de Fisiología y Farmacología, Universidad de Cantabria, 39011 Santander, Spain
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Angel Pazos
- Instituto de Biomedicina y Biotecnología de Cantabria, IBBTEC (Universidad de Cantabria, CSIC, SODERCAN), Departamento de Fisiología y Farmacología, Universidad de Cantabria, 39011 Santander, Spain
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Alvaro Díaz
- Instituto de Biomedicina y Biotecnología de Cantabria, IBBTEC (Universidad de Cantabria, CSIC, SODERCAN), Departamento de Fisiología y Farmacología, Universidad de Cantabria, 39011 Santander, Spain
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Elena Castro
- Instituto de Biomedicina y Biotecnología de Cantabria, IBBTEC (Universidad de Cantabria, CSIC, SODERCAN), Departamento de Fisiología y Farmacología, Universidad de Cantabria, 39011 Santander, Spain
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Instituto de Salud Carlos III, 28029 Madrid, Spain
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11
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The effectiveness of continuous and interval exercise preconditioning against chronic unpredictable stress: Involvement of hippocampal PGC-1α/FNDC5/BDNF pathway. J Psychiatr Res 2021; 136:173-183. [PMID: 33607579 DOI: 10.1016/j.jpsychires.2021.02.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 01/13/2021] [Accepted: 02/08/2021] [Indexed: 11/24/2022]
Abstract
Various exercise-training types are known to prevent depression, but mechanisms underlying their beneficial effects remain unknown. In the present study, the preconditioning effect of continuous and interval exercise on stress-induced depression was evaluated. Adult male Wistar rats in the exercise groups were made to run on a motorized treadmill, five sessions per week for six weeks. After that, to induce the depression model, the rats were exposed to chronic unpredictable stress for three weeks. Behavioral tests were assessed by open field, elevated plus maze, and forced swim tests. Hippocampal PGC-1α, FNDC5, and BDNF protein expression by Western blot and serum corticosterone by ELISA were detected. In the present results, after continuous and interval exercise periods, locomotor activity, the number of entries and time spent in the open arms were increased, and immobility time was significantly reduced. PGC-1α, FNDC5, and BDNF protein levels had a significant increase, and serum corticosterone did not change. Also, interval exercise training increased PGC-1α and FNDC5 more than continuous. Chronic unpredictable stress reduced the positive changes caused by exercise training, although, except FNDC5, exercise preconditioned groups experienced less significant adverse changes in most variables. These findings showed that both continuous and interval exercise preconditioning with increasing hippocampal PGC-1α, FNDC5, and BDNF proteins and improve the anxiety- and depression-like behaviors have a protective effect against chronic unpredictable stress.
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12
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Charvériat M, Guiard BP. Serotonergic neurons in the treatment of mood disorders: The dialogue with astrocytes. PROGRESS IN BRAIN RESEARCH 2021; 259:197-228. [PMID: 33541677 DOI: 10.1016/bs.pbr.2021.01.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Astrocytes were traditionally regarded as cells important to neuronal activity, providing both metabolic and structural supports. Recent evidence suggests that they may also play a crucial role in the control of higher brain functions. In keeping with this hypothesis, it is now well accepted that astrocytes contribute to stress but also react to antidepressant drugs as they express serotonergic transporters and receptors. However, the downstream mechanisms leading to the fine-tuned regulation of mood are still unknown. This chapter pays attention to the role of astrocytes in the regulation of emotional behavior and related serotonergic neurotransmission. In particular, it gives a current state of the clinical and preclinical evidence showing that astrocytes respond to environmental conditions and antidepressant drugs through the release of gliotransmitters and neurotrophic factors which in turn, influence serotonergic tone in discrete brain areas. This state-of-the-art review aims at demonstrating the remarkable potential for novel therapeutic antidepressant strategies targeting these glial cells.
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Affiliation(s)
| | - Bruno P Guiard
- Centre de Recherches sur la Cognition Animale, Centre de Biologie Intégrative, Université de Toulouse, CNRS, Toulouse, France.
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13
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Angoa-Pérez M, Zagorac B, Francescutti DM, Theis KR, Kuhn DM. Responses to chronic corticosterone on brain glucocorticoid receptors, adrenal gland, and gut microbiota in mice lacking neuronal serotonin. Brain Res 2020; 1751:147190. [PMID: 33152342 DOI: 10.1016/j.brainres.2020.147190] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 09/30/2020] [Accepted: 10/28/2020] [Indexed: 02/07/2023]
Abstract
Dysregulation of the stress-induced activation of the hypothalamic-pituitary-adrenocortical axis can result in disease. Bidirectional communication exists between the brain and the gut, and alterations in these interactions appear to be involved in stress regulation and in the pathogenesis of neuropsychiatric diseases, such as depression. Serotonin (5HT) plays a crucial role in the functions of these two major organs but its direct influence under stress conditions remains unclear. To investigate the role of neuronal 5HT on chronic stress responses and its influence on the gut microbiome, mice lacking the gene for tryptophan hydroxylase-2 were treated with the stress hormone corticosterone (CORT) for 21 days. The intake of fluid and food, as well as body weights were recorded daily. CORT levels, expression of glucocorticoid receptors (GR) in the brain and the size of the adrenal gland were evaluated. Caecum was used for 16S rRNA gene characterization of the gut microbiota. Results show that 5HT depletion produced an increase in food intake and a paradoxical reduction in body weight that were enhanced by CORT. Neuronal 5HT depletion impaired the feedback regulation of CORT levels but had no putative effect on the CORT-induced decrease in hippocampal GR expression and the reduction of the adrenal cortex size. Finally, the composition and structure of the gut microbiota were significantly impacted by the absence of neuronal 5HT, and these alterations were enhanced by chronic CORT treatment. Therefore, we conclude that neuronal 5HT influences the stress-related responses at different levels involving CORT levels regulation and the gut microbiome.
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Affiliation(s)
- Mariana Angoa-Pérez
- Research and Development Service, John D. Dingell VA Medical Center, Detroit, MI, United States; Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, MI, United States.
| | - Branislava Zagorac
- Research and Development Service, John D. Dingell VA Medical Center, Detroit, MI, United States; Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, MI, United States
| | - Dina M Francescutti
- Research and Development Service, John D. Dingell VA Medical Center, Detroit, MI, United States; Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, MI, United States
| | - Kevin R Theis
- Department of Biochemistry, Microbiology and Immunology, Wayne State University School of Medicine, Detroit, MI, United States; Perinatal Research Initiative in Maternal, Perinatal and Child Health, Wayne State University School of Medicine, Detroit, MI, United States
| | - Donald M Kuhn
- Research and Development Service, John D. Dingell VA Medical Center, Detroit, MI, United States; Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, MI, United States
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14
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Coutens B, Rekik K, Harster A, Etienne P, Noirot V, Frances B, Moulédous L, Guiard BP. A Citrus Based Sensory Functional Food Ingredient Induces Antidepressant-like Effects: Possible Involvement of an Interplay between the Olfactory and the Serotonergic Systems. Neuroscience 2020; 451:149-163. [PMID: 33039523 DOI: 10.1016/j.neuroscience.2020.09.040] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 09/17/2020] [Accepted: 09/20/2020] [Indexed: 12/28/2022]
Abstract
In the present study, we examined the neurobehavioral effects of a sensory functional food ingredient mainly based on Citrus sinensis extracts (D11399) using a battery of tests recapitulating various endophenotypes of depression such as anxiety in the open field (OF), the elevated plus-maze (EPM), and the novelty suppressed feeding (NSF), self-care in the splash test (ST), despair in the forced swimming task (FST) but also anhedonia in the sucrose preference test (SPT) in mice. A one-week oral administration of D11399 promoted anxiolytic- and antidepressant-like responses in naïve mice subjected to the NSF and FST. In a marked contrast, the administration of D11399 by oral gavage or the inhibition of olfaction by methimazole prevented such beneficial effects. We further investigated the neurobehavioral properties of a ten-week oral administration of D11399 in the corticosterone (CORT) mouse model of depression. Interestingly, D11399 also elicited anxiolytic- and antidepressant-like effects in various paradigms. To characterize the putative underpinning neurobiological mechanisms in CORT mice, we investigated whether cellular and molecular processes commonly associated with antidepressant responses such as monoaminergic neurotransmission and neuronal maturation in the hippocampus were impacted. Although D11399 did not modify the hippocampal extracellular levels of monoamines (i.e. serotonin and norepinephrine), it reversed the ability of CORT to decrease serotonin neurons firing rate in the dorsal raphe and neuronal maturation in the hippocampus. These findings suggest that the anxiolytic- and antidepressant-like effects of this sensory functional food ingredient are closely related with olfaction and likely a concomitant change in the activity of the central serotonergic system. Further experiments are warranted to precise the neuronal circuits linking sensorial and emotional modalities and identify innovative therapeutic strategies aimed to relieve depressive endophenotypes.
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Affiliation(s)
- B Coutens
- Centre de Recherches sur la Cognition Animale, Centre de Biologie Intégrative, Université de Toulouse, CNRS, UPS, France
| | - K Rekik
- Centre de Recherches sur la Cognition Animale, Centre de Biologie Intégrative, Université de Toulouse, CNRS, UPS, France
| | - A Harster
- Centre de Recherches sur la Cognition Animale, Centre de Biologie Intégrative, Université de Toulouse, CNRS, UPS, France
| | | | | | - B Frances
- Centre de Recherches sur la Cognition Animale, Centre de Biologie Intégrative, Université de Toulouse, CNRS, UPS, France
| | - L Moulédous
- Centre de Recherches sur la Cognition Animale, Centre de Biologie Intégrative, Université de Toulouse, CNRS, UPS, France
| | - B P Guiard
- Centre de Recherches sur la Cognition Animale, Centre de Biologie Intégrative, Université de Toulouse, CNRS, UPS, France; Faculté de Pharmacie, Université Paris Sud, Université Paris-Saclay, 92290 Chatenay-Malabry, France.
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15
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Abstract
PURPOSE OF REVIEW Depression and anxiety substantially contribute to interictal disability in patients with epilepsy (PWE). This review summarizes current studies that shed light on mechanisms of comorbidity. RECENT FINDINGS Mounting epidemiological data implicate shared risk factors for anxiety/depression and seizure propensity, but these remain largely elusive and probably vary by epilepsy type. Within PWE, these symptoms appear to be associated with unique genetic, neuropathological, and connectivity profiles. Temporal lobe epilepsy has received enormous emphasis particularly in preclinical studies of comorbidity, where candidate neurobiological mechanisms underlying bidirectionality have been tested without psychopharmacological confounds. Depression and anxiety in epilepsy reflect dysfunction within broadly distributed limbic networks that may be the cause or consequence of epileptogenesis. In refractory epilepsy, seizures and/or certain anticonvulsants may distort central emotional homeostatic mechanisms that perpetually raise seizure risk. Developing future safe and effective combined anticonvulsant-antidepressant treatments will require a detailed understanding of anatomical and molecular nodes that pleiotropically enhance seizure risk and negatively alter emotionality.
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Affiliation(s)
- Vaishnav Krishnan
- Departments of Neurology, Neuroscience and Psychiatry & Behavioral Sciences, Baylor Comprehensive Epilepsy Center, Baylor College of Medicine, One Baylor Plaza St., MS: NB302, Houston, TX, 77030, USA.
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16
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Hay RE, Edwards A, Klein M, Hyland L, MacDonald D, Karatsoreos I, Hill MN, Abizaid A. Ghrelin Receptor Signaling Is Not Required for Glucocorticoid-Induced Obesity in Male Mice. Endocrinology 2020; 161:5636885. [PMID: 31748785 PMCID: PMC7445420 DOI: 10.1210/endocr/bqz023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 11/19/2019] [Indexed: 12/11/2022]
Abstract
Chronically elevated levels of glucocorticoids increase food intake, weight gain, and adiposity. Similarly, ghrelin, a gut-secreted hormone, is also associated with weight gain, adiposity, and increased feeding. Here we sought to determine if corticosterone-induced metabolic and behavioral changes require functional ghrelin receptors (GHSR). To do this, we treated male C57BL mice with chronic corticosterone (CORT) mixed in their drinking water for 28 days. Half of these mice received the GHSR antagonist JMV2959 via osmotic minipumps while treated with CORT. In a second experiment, we gave the same CORT protocol to mice with a targeted mutation to the GHSR or their wild-type littermates. As expected, CORT treatment increased food intake, weight gain, and adiposity, but contrary to expectations, mice treated with a GHSR receptor antagonist or GHSR knockout (KO) mice did not show attenuated food intake, weight gain, or adiposity in response to CORT. Similarly, the effects of CORT on the liver were the same or more pronounced in GHSR antagonist-treated and GHSR KO mice. Treatment with JMV2959 did attenuate the effects of chronic CORT on glycemic regulation as determined by the glucose tolerance test. Finally, disruption of GHSR signaling resulted in behavioral responses associated with social withdrawal, potentially due to neuroprotective effects of GHSR activation. In all, we propose that blocking GHSR signaling helps to moderate glucose concentrations when CORT levels are high, but blocking GHSR signaling does not prevent increased food intake, weight gain, or increased adiposity produced by chronic CORT.
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Affiliation(s)
- Rebecca E Hay
- Department of Neuroscience, Carleton University, Ottawa, ON, Canada
| | - Alex Edwards
- Department of Neuroscience, Carleton University, Ottawa, ON, Canada
| | - Marianne Klein
- Department of Neuroscience, Carleton University, Ottawa, ON, Canada
| | - Lindsay Hyland
- Department of Neuroscience, Carleton University, Ottawa, ON, Canada
| | - David MacDonald
- Department of Neuroscience, Carleton University, Ottawa, ON, Canada
| | - Ilia Karatsoreos
- Department of Integrative Physiology and Neuroscience, Washington State University, Pullman, WA, US
| | - Matthew N Hill
- Hotchkiss Brain Institute, Department of Cell Biology and Anatomy, University of Calgary, Calgary, AB, Canada
| | - Alfonso Abizaid
- Department of Neuroscience, Carleton University, Ottawa, ON, Canada
- Correspondence: Alfonso Abizaid, Department of Neuroscience, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S5B6, Canada. E-mail:
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17
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Horrillo I, Ortega JE, Diez-Alarcia R, Urigüen L, Meana JJ. Chronic fluoxetine reverses the effects of chronic corticosterone treatment on α 2-adrenoceptors in the rat frontal cortex but not locus coeruleus. Neuropharmacology 2019; 158:107731. [PMID: 31376424 DOI: 10.1016/j.neuropharm.2019.107731] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 07/29/2019] [Accepted: 07/30/2019] [Indexed: 01/27/2023]
Abstract
Disruption of the hypothalamic-pituitary-adrenal axis is an established finding in patients with anxiety and/or depression. Chronic corticosterone administration in animals has been proposed as a model for the study of these stress-related disorders and the antidepressant action. Alterations of the central noradrenergic system and specifically of inhibitory α2-adrenoceptors seem to be part of the pathophysiology of depression and contribute to the antidepressant activity. The present study evaluates in male rats the effect of chronic corticosterone treatment during 35 days (16-20 mg kg-1 day-1) on the sensitivity of α2-adrenoceptors expressed in the somatodendritic and terminal noradrenergic areas locus coeruleus (LC) and prefrontal cortex (PFC), respectively. Further, the effect of chronic fluoxetine treatment (5 mg kg-1, i.p., since the 15th day) on the sensitivity of α2-adrenoceptors was examined under control conditions and in corticosterone-treated rats. The α2-adrenoceptor functionality was analysed in vitro by agonist-mediated [35S]GTPγS binding stimulation and in vivo through the modulation of noradrenaline (NA) release evaluated by dual-probe microdialysis. The concentration-effect curves of the [35S]GTPγS binding stimulation by the agonist UK14304 (5-bromo-N-(4,5-dihydro-1H-imidazol-2-yl)-6-quinoxalinamine) demonstrated a desensitization of cortical α2-adrenoceptors induced by corticosterone (-logEC50 = 6.7 ± 0.2 vs 8.2 ± 0.3 in controls) that was reverted by fluoxetine treatment (-logEC50 = 7.5 ± 0.3). Local administration of the α2-adrenoceptor antagonist RS79948 ((8aR,12aS,13aS)-5,8,8a,9,10,11,12,12a,13,13a-decahydro-3-methoxy-12-(ethylsulfonyl)-6H-isoquino[2,1-g][1,6]naphthyridine) (0.1-100 μmol L-1) into the LC induced a concentration-dependent NA increase in the PFC of the control group (Emax = 191 ± 30%) but non-significant effect was observed in corticosterone-treated rats (Emax = 133 ± 46%), reflecting a desensitization of α2-adrenoceptors that control the firing of noradrenergic neurons. Fluoxetine treatment did not alter the corticosterone-induced desensitization in this area (Emax = 136 ± 19%). No effect of fluoxetine on α2-adrenoceptor functionality was observed in control animals (Emax = 223 ± 30%). In PFC, the local administration of RS79948 increased NA in controls (Emax = 226 ± 27%) without effect in the corticosterone group (Emax = 115 ± 26%), suggesting a corticosterone-induced desensitization of terminal α2-adrenoceptors. Fluoxetine administration prevented the desensitization induced by corticosterone in the PFC (Emax = 233 ± 33%) whereas desensitized α2-adrenoceptors in control animals (Emax = -24 ± 10%). These data indicate that chronic corticosterone increases noradrenergic activity by acting at different α2-adrenoceptor subpopulations. Treatment with the antidepressant fluoxetine seems to counteract these changes by acting mainly on presynaptic α2-adrenoceptors expressed in terminal areas.
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Affiliation(s)
- Igor Horrillo
- Department of Pharmacology, University of the Basque Country UPV/EHU, Spain; Centro de Investigación Biomédica en Red de Salud Mental CIBERSAM, Spain; Biocruces Bizkaia Health Research Institute, Spain
| | - Jorge E Ortega
- Department of Pharmacology, University of the Basque Country UPV/EHU, Spain; Centro de Investigación Biomédica en Red de Salud Mental CIBERSAM, Spain; Biocruces Bizkaia Health Research Institute, Spain
| | - Rebeca Diez-Alarcia
- Department of Pharmacology, University of the Basque Country UPV/EHU, Spain; Centro de Investigación Biomédica en Red de Salud Mental CIBERSAM, Spain; Biocruces Bizkaia Health Research Institute, Spain
| | - Leyre Urigüen
- Department of Pharmacology, University of the Basque Country UPV/EHU, Spain; Centro de Investigación Biomédica en Red de Salud Mental CIBERSAM, Spain; Biocruces Bizkaia Health Research Institute, Spain
| | - J Javier Meana
- Department of Pharmacology, University of the Basque Country UPV/EHU, Spain; Centro de Investigación Biomédica en Red de Salud Mental CIBERSAM, Spain; Biocruces Bizkaia Health Research Institute, Spain.
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18
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Birmann PT, Sousa FSS, Domingues M, Brüning CA, Vieira BM, Lenardão EJ, Savegnago L. 3-(4-Chlorophenylselanyl)-1-methyl-1H-indole promotes recovery of neuropathic pain and depressive-like behavior induced by partial constriction of the sciatic nerve in mice. J Trace Elem Med Biol 2019; 54:126-133. [PMID: 31109602 DOI: 10.1016/j.jtemb.2019.04.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 04/18/2019] [Accepted: 04/23/2019] [Indexed: 01/16/2023]
Abstract
3-(4-Chlorophenylselanyl)-1-methyl-1H-indole (CMI) is an organoselenium compound that presents antioxidant activity, antinociceptive, anti-inflammatory and antidepressive-like effect in mice in previous studies conducted by our research group. In this study, we evaluate the anti-allodynic, anti-hyperalgesic and antidepressant-like effects of CMI on partial sciatic nerve ligation (PSNL) in male adult Swiss mice (25-35 g) as well as the involvement of oxidative stress in these effects. Mice underwent PSNL surgery and after 4 weeks they were treated with CMI (10 mg/kg, intragastric route [i.g.]) or vehicle. The treatment with CMI (10 mg/kg, i.g.) reversed the increased the percentage of response to Von-Frey Hair (VFH) stimulation, decreased the latency time to nociceptive response in the hot-plate test, increased immobility time in the forced swimming test (FST) and decreased groomings activity in the splash test, all induced by PSNL. Additionally, CMI also reversed increased the levels of reactive oxygen species (ROS) and lipid peroxidation in cortex and hippocampus and plasmatic levels of corticosterone in mice, induced by PSNL. Results demonstrate that CMI reversed behavioral and biochemical alterations in the dyad pain-depression induced by PSNL and possibly modulation of oxidative system.
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Affiliation(s)
- Paloma T Birmann
- Technologic Development Center, Biotechnology Unit, Neurobiotechnology Research Group, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Fernanda S S Sousa
- Center of Chemical, Pharmaceutical and Food Sciences, Neurobiotechnology Research Group, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Micaela Domingues
- Technologic Development Center, Biotechnology Unit, Neurobiotechnology Research Group, Federal University of Pelotas, Pelotas, RS, Brazil
| | - César A Brüning
- Center of Chemical, Pharmaceutical and Food Sciences, Neurobiotechnology Research Group, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Beatriz M Vieira
- Center of Chemical, Pharmaceutical and Food Sciences, Laboratory of Clean Organic Synthesis, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Eder J Lenardão
- Center of Chemical, Pharmaceutical and Food Sciences, Laboratory of Clean Organic Synthesis, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Lucielli Savegnago
- Technologic Development Center, Biotechnology Unit, Neurobiotechnology Research Group, Federal University of Pelotas, Pelotas, RS, Brazil; Center of Chemical, Pharmaceutical and Food Sciences, Laboratory of Clean Organic Synthesis, Federal University of Pelotas, Pelotas, RS, Brazil.
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19
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Yun S, Reyes-Alcaraz A, Lee YN, Yong HJ, Choi J, Ham BJ, Sohn JW, Kim DH, Son GH, Kim H, Kwon SG, Kim DS, Kim BC, Hwang JI, Seong JY. Spexin-Based Galanin Receptor Type 2 Agonist for Comorbid Mood Disorders and Abnormal Body Weight. Front Neurosci 2019; 13:391. [PMID: 31057364 PMCID: PMC6482256 DOI: 10.3389/fnins.2019.00391] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 04/04/2019] [Indexed: 01/18/2023] Open
Abstract
Despite the established comorbidity between mood disorders and abnormal eating behaviors, the underlying molecular mechanism and therapeutics remain to be resolved. Here, we show that a spexin-based galanin receptor type 2 agonist (SG2A) simultaneously normalized mood behaviors and body weight in corticosterone pellet-implanted (CORTI) mice, which are underweight and exhibit signs of anhedonia, increased anxiety, and depression. Administration of SG2A into the lateral ventricle produced antidepressive and anxiolytic effects in CORTI mice. Additionally, SG2A led to a recovery of body weight in CORTI mice while it induced significant weight loss in normal mice. In Pavlovian fear-conditioned mice, SG2A decreased contextual and auditory fear memory consolidation but accelerated the extinction of acquired fear memory without altering innate fear and recognition memory. The main action sites of SG2A in the brain may include serotonergic neurons in the dorsal raphe nucleus for mood control, and proopiomelanocortin/corticotropin-releasing hormone neurons in the hypothalamus for appetite and body weight control. Furthermore, intranasal administration of SG2A exerted the same anxiolytic and antidepressant-like effects and decreased food intake and body weight in a dose-dependent manner. Altogether, these results indicate that SG2A holds promise as a clinical treatment for patients with comorbid mood disorders and abnormal appetite/body weight.
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Affiliation(s)
- Seongsik Yun
- Graduate School of Medicine, Korea University, Seoul, South Korea
| | | | - Yoo-Na Lee
- Graduate School of Medicine, Korea University, Seoul, South Korea
| | - Hyo Jeong Yong
- Graduate School of Medicine, Korea University, Seoul, South Korea
| | - Jeewon Choi
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, South Korea
| | - Byung-Joo Ham
- Department of Psychiatry, College of Medicine, Korea University, Seoul, South Korea
| | - Jong-Woo Sohn
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, South Korea
| | - Dong-Hoon Kim
- Graduate School of Medicine, Korea University, Seoul, South Korea
| | - Gi Hoon Son
- Graduate School of Medicine, Korea University, Seoul, South Korea
| | - Hyun Kim
- Graduate School of Medicine, Korea University, Seoul, South Korea
| | | | | | | | - Jong-Ik Hwang
- Graduate School of Medicine, Korea University, Seoul, South Korea
| | - Jae Young Seong
- Graduate School of Medicine, Korea University, Seoul, South Korea
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20
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Lutein prevents corticosterone-induced depressive-like behavior in mice with the involvement of antioxidant and neuroprotective activities. Pharmacol Biochem Behav 2019; 179:63-72. [DOI: 10.1016/j.pbb.2019.02.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Revised: 02/12/2019] [Accepted: 02/14/2019] [Indexed: 01/14/2023]
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21
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Wei CL, Wang S, Yen JT, Cheng YF, Liao CL, Hsu CC, Wu CC, Tsai YC. Antidepressant-like activities of live and heat-killed Lactobacillus paracasei PS23 in chronic corticosterone-treated mice and possible mechanisms. Brain Res 2019; 1711:202-213. [PMID: 30684456 DOI: 10.1016/j.brainres.2019.01.025] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 01/04/2019] [Accepted: 01/22/2019] [Indexed: 02/07/2023]
Abstract
Emerging evidence indicates that ingestion of specific probiotics, known as "psychobiotics", confer beneficial effects on mental health. This study investigated antidepressant-like effects and possible underlying mechanisms of Lactobacillus paracasei PS23 (PS23), live or heat-killed, in a mouse model of corticosterone-induced depression using fluoxetine as standard drug. PS23 were orally gavaged to mice from day 1 to 41 or fluoxetine from day 17 to 41 and injected with corticosterone from day 17 to 37. After the last corticosterone treatment, anxiety- and depression-like behaviors were tested within 4 days. On day 42, serum and brain tissue were collected 24 min after forced swim stress. Abnormal behavioral changes induced by corticosterone were ameliorated by treatment with live PS23 in open field and sucrose preference tests, with heat-killed PS23 in open field, forced swim and sucrose preference tests, and with fluoxetine in open field and forced swim tests. Furthermore, both live and heat-killed PS23 and fluoxetine reversed corticosterone-reduced protein levels of brain-derived neurotropic factor, mineralocorticoid, and glucocorticoid receptors in the hippocampus. In addition, live PS23 also reverses corticosterone-reduced serotonin levels in hippocampus, prefrontal cortex and striatum; whereas heat-killed PS23 reverses corticosterone-reduced dopamine levels in hippocampus and prefrontal cortex. And fluoxetine normalized reduced corticosterone level in serum. These studies showed that both live and heat-killed PS23 can reverse chronic corticosterone-induced anxiety- and depression-like behaviors and that may provide insights into the mechanism and a potential psychobiotic for depression management.
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Affiliation(s)
- Chia-Li Wei
- Department of Biochemical Science and Technology, National Chiayi University, 300 Syuefu Rd., Chiayi City 60004, Taiwan.
| | - Sabrina Wang
- Institute of Anatomy and Cell Biology, National Yang-Ming University, 155, Sec. 2, Li-Nong St., Taipei 11221, Taiwan
| | - Jui-Ting Yen
- Institute of Biochemistry and Molecular Biology, National Yang-Ming University, 155, Sec. 2, Li-Nong St., Taipei 11221, Taiwan
| | - Yun-Fang Cheng
- Bened Biomedical Co., Ltd., 2F-2, No. 129, Sec. 2, Zhongshan N. Rd., Taipei 10448, Taiwan
| | - Chia-Li Liao
- Institute of Biochemistry and Molecular Biology, National Yang-Ming University, 155, Sec. 2, Li-Nong St., Taipei 11221, Taiwan
| | - Chih-Chieh Hsu
- Bened Biomedical Co., Ltd., 2F-2, No. 129, Sec. 2, Zhongshan N. Rd., Taipei 10448, Taiwan
| | - Chien-Chen Wu
- Bened Biomedical Co., Ltd., 2F-2, No. 129, Sec. 2, Zhongshan N. Rd., Taipei 10448, Taiwan
| | - Ying-Chieh Tsai
- Institute of Biochemistry and Molecular Biology, National Yang-Ming University, 155, Sec. 2, Li-Nong St., Taipei 11221, Taiwan; Microbiome Research Center, National Yang-Ming University, 155, Sec. 2, Li-Nong St., Taipei 11221, Taiwan.
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22
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Wu Q, Song J, Meng D, Chang Q. TPPU, a sEH Inhibitor, Attenuates Corticosterone-Induced PC12 Cell Injury by Modulation of BDNF-TrkB Pathway. J Mol Neurosci 2019; 67:364-372. [PMID: 30644034 DOI: 10.1007/s12031-018-1230-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 11/21/2018] [Indexed: 12/11/2022]
Abstract
High level of corticosterone (CORT) is toxic to neurons and plays an important role in depression-like behavior and chronic stress. Our previous study showed that TPPU, a soluble epoxide hydrolase (sEH) inhibitor (sEHI), induces an antidepressant effect in animal models. However, the underlying mechanism is not clear. In this study, we investigated the protective effect of TPPU on PC12 cells against CORT-induced cytotoxicity and its underlying mechanism. We found that TPPU and the sEH substrate epoxyeicosatrienoic acids (EETs) protected PC12 cells from the CORT-induced injury by increasing cell viability and inhibiting apoptosis. Furthermore, TPPU and EETs also blocked the CORT-mediated downregulation of BDNF. Blocking the BDNF-TrkB pathway by the TrkB inhibitor K252a abolished the protective effect of TPPU. Taken together, our results suggest that sEHI could protect PC12 cells against the CORT-induced cytotoxicity via the BDNF-TrkB signaling pathway.
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Affiliation(s)
- Qiong Wu
- Department of Pathophysiology, Luohe Medical College, Luohe, China
| | - Jingfang Song
- Department of Medicine, Luohe Medical College, Luohe, China
| | - Danxin Meng
- Department of Medicine, Luohe Medical College, Luohe, China
| | - Quanzhong Chang
- Department of Physiology, Luohe Medical College, Luohe, 462000, China.
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23
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Nandam LS, Brazel M, Zhou M, Jhaveri DJ. Cortisol and Major Depressive Disorder-Translating Findings From Humans to Animal Models and Back. Front Psychiatry 2019; 10:974. [PMID: 32038323 PMCID: PMC6987444 DOI: 10.3389/fpsyt.2019.00974] [Citation(s) in RCA: 121] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 12/09/2019] [Indexed: 12/15/2022] Open
Abstract
Major depressive disorder (MDD) is a global problem for which current pharmacotherapies are not completely effective. Hypothalamic-pituitary-adrenal (HPA) axis dysfunction has long been associated with MDD; however, the value of assessing cortisol as a biological benchmark of the pathophysiology or treatment of MDD is still debated. In this review, we critically evaluate the relationship between HPA axis dysfunction and cortisol level in relation to MDD subtype, stress, gender and treatment regime, as well as in rodent models. We find that an elevated cortisol response to stress is associated with acute and severe, but not mild or atypical, forms of MDD. Furthermore, the increased incidence of MDD in females is associated with greater cortisol response variability rather than higher baseline levels of cortisol. Despite almost all current MDD treatments influencing cortisol levels, we could find no convincing relationship between cortisol level and therapeutic response in either a clinical or preclinical setting. Thus, we argue that the absolute level of cortisol is unreliable for predicting the efficacy of antidepressant treatment. We propose that future preclinical models should reliably produce exaggerated HPA axis responses to acute or chronic stress a priori, which may, or may not, alter baseline cortisol levels, while also modelling the core symptoms of MDD that can be targeted for reversal. Combining genetic and environmental risk factors in such a model, together with the interrogation of the resultant molecular, cellular, and behavioral changes, promises a new mechanistic understanding of MDD and focused therapeutic strategies.
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Affiliation(s)
- L. Sanjay Nandam
- Mental Health Unit, Prince Charles Hospital, Brisbane, QLD, Australia
- *Correspondence: L. Sanjay Nandam, ; Dhanisha J. Jhaveri,
| | - Matthew Brazel
- Mental Health Unit, Prince Charles Hospital, Brisbane, QLD, Australia
- Department of Psychiatry, Royal Hobart Hospital, Hobart, TAS, Australia
| | - Mei Zhou
- Mater Research Institute, The University of Queensland, Brisbane, QLD, Australia
- Queensland Brain Institute, The University of Queensland, Brisbane, QLD, Australia
| | - Dhanisha J. Jhaveri
- Mater Research Institute, The University of Queensland, Brisbane, QLD, Australia
- Queensland Brain Institute, The University of Queensland, Brisbane, QLD, Australia
- *Correspondence: L. Sanjay Nandam, ; Dhanisha J. Jhaveri,
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24
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Zebrafish models of epigenetic regulation of CNS functions. Brain Res Bull 2018; 142:344-351. [DOI: 10.1016/j.brainresbull.2018.08.022] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Revised: 08/22/2018] [Accepted: 08/30/2018] [Indexed: 12/12/2022]
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25
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Olescowicz G, Neis VB, Fraga DB, Rosa PB, Azevedo DP, Melleu FF, Brocardo PS, Gil-Mohapel J, Rodrigues ALS. Antidepressant and pro-neurogenic effects of agmatine in a mouse model of stress induced by chronic exposure to corticosterone. Prog Neuropsychopharmacol Biol Psychiatry 2018; 81:395-407. [PMID: 28842257 DOI: 10.1016/j.pnpbp.2017.08.017] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2017] [Revised: 07/27/2017] [Accepted: 08/21/2017] [Indexed: 12/19/2022]
Abstract
Agmatine is an endogenous neuromodulator that has been shown to have beneficial effects in the central nervous system, including antidepressant-like effects in animals. In this study, we investigated the ability of agmatine (0.1mg/kg, p.o.) and the conventional antidepressant fluoxetine (10mg/kg, p.o.) to reverse the behavioral effects and morphological alterations in the hippocampus of mice exposed to chronic corticosterone (20mg/kg, p.o.) treatment for a period of 21days as a model of stress and depressive-like behaviors. Chronic corticosterone treatment increased the immobility time in the tail suspension test (TST), but did not cause anhedonic-like and anxiety-related behaviors, as assessed with the splash test and the open field test (OFT), respectively. Of note, the depressive-like behaviors induced by corticosterone were accompanied by a decrease in hippocampal cell proliferation, although no changes in hippocampal neuronal differentiation were observed. Our findings provide evidence that, similarly to fluoxetine, agmatine was able to reverse the corticosterone-induced depressive-like behaviors in the TST as well as the deficits in hippocampal cell proliferation. Additionally, fluoxetine but not agmatine, increased hippocampal differentiation. Agmatine, similar to fluoxetine, was capable of increasing both dendritic arborization and length in the entire dentate hippocampus, an effect more evident in the ventral portion of the hippocampus, as assessed with the modified Sholl analysis. Altogether, our results suggest that the increase in hippocampal proliferation induced by agmatine may contribute, at least in part, to the antidepressant-like response of this compound in this mouse model of stress induced by chronic exposure to corticosterone.
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Affiliation(s)
- Gislaine Olescowicz
- Department of Biochemistry, Center of Biological Sciences, Federal University of Santa Catarina, 88040-900 Florianópolis, SC, Brazil
| | - Vivian B Neis
- Department of Biochemistry, Center of Biological Sciences, Federal University of Santa Catarina, 88040-900 Florianópolis, SC, Brazil
| | - Daiane B Fraga
- Department of Biochemistry, Center of Biological Sciences, Federal University of Santa Catarina, 88040-900 Florianópolis, SC, Brazil
| | - Priscila B Rosa
- Department of Biochemistry, Center of Biological Sciences, Federal University of Santa Catarina, 88040-900 Florianópolis, SC, Brazil
| | - Dayane P Azevedo
- Department of Biochemistry, Center of Biological Sciences, Federal University of Santa Catarina, 88040-900 Florianópolis, SC, Brazil
| | - Fernando Falkenburger Melleu
- Department of Physiological Sciences, Center of Biological Sciences, Federal University of Santa Catarina, 88040-900 Florianópolis, SC, Brazil
| | - Patricia S Brocardo
- Department of Morphological Sciences, Center of Biological Sciences, Federal University of Santa Catarina, 88040-900 Florianópolis, SC, Brazil
| | - Joana Gil-Mohapel
- Division of Medical Sciences, UBC Island Medical Program, University of Victoria, Victoria, British Columbia, Canada
| | - Ana Lúcia S Rodrigues
- Department of Biochemistry, Center of Biological Sciences, Federal University of Santa Catarina, 88040-900 Florianópolis, SC, Brazil.
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26
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Liu S, Han S, Dai Q, Li S, Li J. BICAO-induced ischaemia caused depressive-like behaviours and caspase-8/-9-dependent brain regional neural cell apoptosis in mice. Stroke Vasc Neurol 2017; 3:1-8. [PMID: 29600001 PMCID: PMC5870644 DOI: 10.1136/svn-2017-000109] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 11/04/2017] [Accepted: 11/07/2017] [Indexed: 11/04/2022] Open
Abstract
Introduction Cerebral ischaemia-induced depression is among the most frequent neuropsychiatric consequences and adversely impact the prognosis and recovery of patients. Although several brain regions have been implied in the development of ischaemia-induced depression, the brain region-specific neural cell apoptosis pathways have not been clarified yet. Methods In this study, bilateral internal carotid artery occlusion (BICAO) mouse model was established to induce cerebral ischaemia. Sucrose preference, tail suspension and forced swim tests were conducted on mice at 7, 21 and 30 days after BICAO treatment. In addition, brain regional ischaemic neuron loss was investigated by using immunofluorescent staining of neuronal nuclei (NeuN) and caspase-8/-9-dependent cell apoptosis was also examined by western blot analysis. Results BICAO-induced cerebral ischaemia resulted in decreased sucrose preference and increased immobility times, which were representative depressive-like behaviours of mice until 30 days after BICAO treatment compared with Sham-operated mice. This outcome was associated with significant neuron loss by using immunofluorescent staining and increased cleavage levels of pro-caspase-3/-8/-9, but not pro-caspase-12, by western blot analysis in hypothalamus, midbrain, prefrontal cortex and hippocampus of mice. Conclusions This study showed that BICAO-induced ischaemia caused depressive-like behaviours and caspase-8/-9-dependent neural cell apoptosis in several brain regions, including hypothalamus and midbrain of mice.
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Affiliation(s)
- Shuiqiao Liu
- Department of Neurobiology and Center of Stroke, Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China
| | - Song Han
- Department of Neurobiology and Center of Stroke, Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China
| | - Qingqing Dai
- Department of Neurobiology and Center of Stroke, Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China
| | - Shujuan Li
- Department of Neurology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Junfa Li
- Department of Neurobiology and Center of Stroke, Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China
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27
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Sawamoto A, Okuyama S, Amakura Y, Yoshimura M, Yamada T, Yokogoshi H, Nakajima M, Furukawa Y. 3,5,6,7,8,3',4'-Heptamethoxyflavone Ameliorates Depressive-Like Behavior and Hippocampal Neurochemical Changes in Chronic Unpredictable Mild Stressed Mice by Regulating the Brain-Derived Neurotrophic Factor: Requirement for ERK Activation. Int J Mol Sci 2017; 18:ijms18102133. [PMID: 29023414 PMCID: PMC5666815 DOI: 10.3390/ijms18102133] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 10/06/2017] [Accepted: 10/09/2017] [Indexed: 01/07/2023] Open
Abstract
We previously reported that the subcutaneous administration of 3,5,6,7,8,3',4'-heptamethoxyflavone (HMF), a citrus polymethoxyflavone, attenuated depressive-like behavior and increased the expression of brain-derived neurotrophic factor (BDNF) in the hippocampus of a corticosterone-induced depression-like mouse model. We herein demonstrated that (1) HMF was detectable in the brain 10 and 30 min after its oral administration, (2) orally administered HMF improved chronic unpredictable mild stress (CUMS)-induced pathological conditions, including body weight loss and depressive-like behavior, and CUMS-induced neurochemical changes, such as reduction in BDNF expression, decrease in neurogenesis, and decreased level of phosphorylated calcium-calmodulin-dependent protein kinase II in the hippocampus, and (3) these effects of HMF were inhibited by the pre-administration of U0126, a mitogen-activated protein (MAP) kinase inhibitor. These results suggest that orally administered HMF is beneficial for the upregulation of BDNF in the hippocampus via the extracellular signal-regulated kinase1/2 (ERK1/2)/MAP system, which may account for its antidepression effects.
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Affiliation(s)
- Atsushi Sawamoto
- Department of Pharmaceutical Pharmacology, Graduate school of Clinical Pharmacy, Matsuyama University, 4-2 Bunkyo-cho, Matsuyama, Ehime 790-8578, Japan.
| | - Satoshi Okuyama
- Department of Pharmaceutical Pharmacology, Graduate school of Clinical Pharmacy, Matsuyama University, 4-2 Bunkyo-cho, Matsuyama, Ehime 790-8578, Japan.
| | - Yoshiaki Amakura
- Department of Pharmacognosy, Graduate school of Clinical Pharmacy, Matsuyama University, 4-2 Bunkyo-cho, Matsuyama, Ehime 790-8578, Japan.
| | - Morio Yoshimura
- Department of Pharmacognosy, Graduate school of Clinical Pharmacy, Matsuyama University, 4-2 Bunkyo-cho, Matsuyama, Ehime 790-8578, Japan.
| | - Takashi Yamada
- Department of Food and Nutritional Sciences, College of Bioscience and Biotechnology, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi 487-8501, Japan.
| | - Hidehiko Yokogoshi
- Department of Food and Nutritional Sciences, College of Bioscience and Biotechnology, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi 487-8501, Japan.
| | - Mitsunari Nakajima
- Department of Pharmaceutical Pharmacology, Graduate school of Clinical Pharmacy, Matsuyama University, 4-2 Bunkyo-cho, Matsuyama, Ehime 790-8578, Japan.
| | - Yoshiko Furukawa
- Department of Pharmaceutical Pharmacology, Graduate school of Clinical Pharmacy, Matsuyama University, 4-2 Bunkyo-cho, Matsuyama, Ehime 790-8578, Japan.
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28
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Li J, Xie X, Li Y, Liu X, Liao X, Su YA, Si T. Differential Behavioral and Neurobiological Effects of Chronic Corticosterone Treatment in Adolescent and Adult Rats. Front Mol Neurosci 2017; 10:25. [PMID: 28210212 PMCID: PMC5288376 DOI: 10.3389/fnmol.2017.00025] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Accepted: 01/20/2017] [Indexed: 11/13/2022] Open
Abstract
Adolescence is a critical period with ongoing maturational processes in stress-sensitive systems. While adolescent individuals show heightened stress-induced hormonal responses compared to adults, it is unclear whether and how the behavioral and neurobiological consequences of chronic stress would differ between the two age groups. Here we address this issue by examining the effects of chronic exposure to the stress hormone, corticosterone (CORT), in both adolescent and adult animals. Male Sprague-Dawley (SD) rats were injected intraperitoneally with CORT (40 mg/kg) or vehicle for 21 days during adolescence (post-natal day (PND) 29–49) or adulthood (PND 71–91) and then subjected to behavioral testing or sacrifice for western blot analyses. Despite of similar physical and neuroendocrine effects in both age groups, chronic CORT treatment produced a series of behavioral and neurobiological effects with striking age differences. While CORT-treated adult animals exhibited decreased sucrose preference, increased anxiety levels and cognitive impairment, CORT-treated adolescent animals demonstrated increased sucrose preference, decreased anxiety levels, and increased sensorimotor gating functions. These differential behavioral alterations were accompanied by opposite changes in the two age groups in the expression levels of brain-derived neurotrophic factor (BDNF), the phosphorylation of the obligatory subunit of the NMDA receptor, GluN1, and PSD-95 in rat hippocampus. These results suggest that prolonged glucocorticoid exposure during adolescence produces different behavioral and neurobiological effects from those in adulthood, which may be due to the complex interaction between glucocorticoids and the ongoing neurodevelopmental processes during this period.
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Affiliation(s)
- Jitao Li
- National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital/Institute of Mental Health) and the Key Laboratory of Mental Health, Ministry of Health (Peking University) Beijing, China
| | - Xiaomeng Xie
- National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital/Institute of Mental Health) and the Key Laboratory of Mental Health, Ministry of Health (Peking University) Beijing, China
| | - Youhong Li
- National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital/Institute of Mental Health) and the Key Laboratory of Mental Health, Ministry of Health (Peking University) Beijing, China
| | - Xiao Liu
- Department of Psychiatry and Mental Health, North China University of Science and Technology Tangshan, China
| | - Xuemei Liao
- National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital/Institute of Mental Health) and the Key Laboratory of Mental Health, Ministry of Health (Peking University) Beijing, China
| | - Yun-Ai Su
- National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital/Institute of Mental Health) and the Key Laboratory of Mental Health, Ministry of Health (Peking University) Beijing, China
| | - Tianmei Si
- National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital/Institute of Mental Health) and the Key Laboratory of Mental Health, Ministry of Health (Peking University) Beijing, China
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