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Zhou J, Wu JW, Song BL, Jiang Y, Niu QH, Li LF, Liu YJ. 5-HT1A receptors within the intermediate lateral septum modulate stress vulnerability in male mice. Prog Neuropsychopharmacol Biol Psychiatry 2024; 132:110966. [PMID: 38354893 DOI: 10.1016/j.pnpbp.2024.110966] [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: 10/30/2023] [Revised: 02/04/2024] [Accepted: 02/11/2024] [Indexed: 02/16/2024]
Abstract
Chronic stress is a major risk factor for psychiatric disorders. However, certain individuals may be at higher risk due to greater stress susceptibility. Elucidating the neurobiology of stress resilience and susceptibility may facilitate the development of novel strategies to prevent and treat stress-related disorders such as depression. Mounting evidence suggests that the serotonin (5-HT) system is a major regulator of stress sensitivity. In this study, we assessed the functions of 5-HT1A and 5-HT2A receptors within the lateral septum (LS) in regulating stress vulnerability. Among a group of male mice exposed to chronic social defeat stress (CSDS), 47.2% were classified as stress-susceptible, and these mice employed more passive coping strategies during the defeat and exhibited more severe anxiety- and depression-like behaviors during the following behavioral tests. These stress-susceptible mice also exhibited elevated neuronal activity in the LS as evidenced by greater c-Fos expression, greater activity of 5-HT neurons in both the dorsal and median raphe nucleus, and downregulated expression of the 5-HT1A receptor in the intermediate LS (LSi). Finally, we found the stress-induced social withdrawal symptoms could be rapidly relieved by LSi administration of 8-OH-DPAT, a 5-HT1A receptor agonist. These results indicate that 5-HT1A receptors within the LSi play an important role in stress vulnerability in mice. Therefore, modulation of stress vulnerable via 5-HT1A receptor activation in the LSi is a potential strategy to treat stress-related psychiatric disorders.
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Affiliation(s)
- Jie Zhou
- Research Center of Henan Provincial Agricultural Biomass Resource Engineering and Technology, College of Life Science and Agriculture, Nanyang Normal University, Nanyang 473061, China
| | - Jiao-Wen Wu
- Research Center of Henan Provincial Agricultural Biomass Resource Engineering and Technology, College of Life Science and Agriculture, Nanyang Normal University, Nanyang 473061, China
| | - Bai-Lin Song
- Research Center of Henan Provincial Agricultural Biomass Resource Engineering and Technology, College of Life Science and Agriculture, Nanyang Normal University, Nanyang 473061, China
| | - Yi Jiang
- Research Center of Henan Provincial Agricultural Biomass Resource Engineering and Technology, College of Life Science and Agriculture, Nanyang Normal University, Nanyang 473061, China
| | - Qiu-Hong Niu
- Research Center of Henan Provincial Agricultural Biomass Resource Engineering and Technology, College of Life Science and Agriculture, Nanyang Normal University, Nanyang 473061, China..
| | - Lai-Fu Li
- Research Center of Henan Provincial Agricultural Biomass Resource Engineering and Technology, College of Life Science and Agriculture, Nanyang Normal University, Nanyang 473061, China..
| | - Ying-Juan Liu
- Research Center of Henan Provincial Agricultural Biomass Resource Engineering and Technology, College of Life Science and Agriculture, Nanyang Normal University, Nanyang 473061, China..
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Tian J, Du E, Guo L. Mitochondrial Interaction with Serotonin in Neurobiology and Its Implication in Alzheimer's Disease. J Alzheimers Dis Rep 2023; 7:1165-1177. [PMID: 38025801 PMCID: PMC10657725 DOI: 10.3233/adr-230070] [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: 07/14/2023] [Accepted: 08/16/2023] [Indexed: 12/01/2023] Open
Abstract
Alzheimer's disease (AD) is a lethal neurodegenerative disorder characterized by severe brain pathologies and progressive cognitive decline. While the exact cause of this disease remains unknown, emerging evidence suggests that dysregulation of neurotransmitters contributes to the development of AD pathology and symptoms. Serotonin, a critical neurotransmitter in the brain, plays a pivotal role in regulating various brain processes and is implicated in neurological and psychiatric disorders, including AD. Recent studies have shed light on the interplay between mitochondrial function and serotonin regulation in brain physiology. In AD, there is a deficiency of serotonin, along with impairments in mitochondrial function, particularly in serotoninergic neurons. Additionally, altered activity of mitochondrial enzymes, such as monoamine oxidase, may contribute to serotonin dysregulation in AD. Understanding the intricate relationship between mitochondria and serotonin provides valuable insights into the underlying mechanisms of AD and identifies potential therapeutic targets to restore serotonin homeostasis and alleviate AD symptoms. This review summarizes the recent advancements in unraveling the connection between brain mitochondria and serotonin, emphasizing their significance in AD pathogenesis and underscoring the importance of further research in this area. Elucidating the role of mitochondria in serotonin dysfunction will promote the development of therapeutic strategies for the treatment and prevention of this neurodegenerative disorder.
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Affiliation(s)
- Jing Tian
- Department of Pharmacology and Toxicology, University of Kansas, Lawrence, KS, USA
| | - Eric Du
- Department of Pharmacology and Toxicology, University of Kansas, Lawrence, KS, USA
- Blue Valley West High School, Overland Park, KS, USA
| | - Lan Guo
- Department of Pharmacology and Toxicology, University of Kansas, Lawrence, KS, USA
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Neuwirth LS, Verrengia MT, Harikinish-Murrary ZI, Orens JE, Lopez OE. Under or Absent Reporting of Light Stimuli in Testing of Anxiety-Like Behaviors in Rodents: The Need for Standardization. Front Mol Neurosci 2022; 15:912146. [PMID: 36061362 PMCID: PMC9428565 DOI: 10.3389/fnmol.2022.912146] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 06/21/2022] [Indexed: 11/17/2022] Open
Abstract
Behavioral neuroscience tests such as the Light/Dark Test, the Open Field Test, the Elevated Plus Maze Test, and the Three Chamber Social Interaction Test have become both essential and widely used behavioral tests for transgenic and pre-clinical models for drug screening and testing. However, as fast as the field has evolved and the contemporaneous involvement of technology, little assessment of the literature has been done to ensure that these behavioral neuroscience tests that are crucial to pre-clinical testing have well-controlled ethological motivation by the use of lighting (i.e., Lux). In the present review paper, N = 420 manuscripts were examined from 2015 to 2019 as a sample set (i.e., n = ~20–22 publications per year) and it was found that only a meager n = 50 publications (i.e., 11.9% of the publications sampled) met the criteria for proper anxiogenic and anxiolytic Lux reported. These findings illustrate a serious concern that behavioral neuroscience papers are not being vetted properly at the journal review level and are being released into the literature and public domain making it difficult to assess the quality of the science being reported. This creates a real need for standardizing the use of Lux in all publications on behavioral neuroscience techniques within the field to ensure that contributions are meaningful, avoid unnecessary duplication, and ultimately would serve to create a more efficient process within the pre-clinical screening/testing for drugs that serve as anxiolytic compounds that would prove more useful than what prior decades of work have produced. It is suggested that improving the standardization of the use and reporting of Lux in behavioral neuroscience tests and the standardization of peer-review processes overseeing the proper documentation of these methodological approaches in manuscripts could serve to advance pre-clinical testing for effective anxiolytic drugs. This report serves to highlight this concern and proposes strategies to proactively remedy them as the field moves forward for decades to come.
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Affiliation(s)
- Lorenz S. Neuwirth
- Department of Psychology, SUNY Old Westbury, Old Westbury, NY, United States
- SUNY Neuroscience Research Institute, SUNY Old Westbury, Old Westbury, NY, United States
- *Correspondence: Lorenz S. Neuwirth
| | - Michael T. Verrengia
- Department of Psychology, SUNY Old Westbury, Old Westbury, NY, United States
- SUNY Neuroscience Research Institute, SUNY Old Westbury, Old Westbury, NY, United States
| | - Zachary I. Harikinish-Murrary
- Department of Psychology, SUNY Old Westbury, Old Westbury, NY, United States
- SUNY Neuroscience Research Institute, SUNY Old Westbury, Old Westbury, NY, United States
| | - Jessica E. Orens
- Department of Psychology, SUNY Old Westbury, Old Westbury, NY, United States
- SUNY Neuroscience Research Institute, SUNY Old Westbury, Old Westbury, NY, United States
| | - Oscar E. Lopez
- Department of Psychology, SUNY Old Westbury, Old Westbury, NY, United States
- SUNY Neuroscience Research Institute, SUNY Old Westbury, Old Westbury, NY, United States
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Involvement of DR→mPFC 5-HTergic neural projections in changes of social exploration behaviors caused by adult chronic social isolation in mice. Brain Res Bull 2022; 186:16-26. [DOI: 10.1016/j.brainresbull.2022.04.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 04/28/2022] [Accepted: 04/30/2022] [Indexed: 11/23/2022]
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Interspecific differences in sociability, social novelty preference, anxiety- and depression-like behaviors between Brandt's voles and C57BL/6J mice. Behav Processes 2022; 197:104624. [DOI: 10.1016/j.beproc.2022.104624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 03/08/2022] [Accepted: 03/10/2022] [Indexed: 11/24/2022]
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Zhu Y, Fan Z, Zhao Q, Li J, Cai G, Wang R, Liang Y, Lu N, Kang J, Luo D, Tao H, Li Y, Huang J, Wu S. Brain-Type Glycogen Phosphorylase Is Crucial for Astrocytic Glycogen Accumulation in Chronic Social Defeat Stress-Induced Depression in Mice. Front Mol Neurosci 2022; 14:819440. [PMID: 35140588 PMCID: PMC8820374 DOI: 10.3389/fnmol.2021.819440] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Accepted: 12/30/2021] [Indexed: 01/12/2023] Open
Abstract
Astrocytic glycogen plays an important role in brain energy metabolism. However, the contribution of glycogen metabolism to stress-induced depression remains unclear. Chronic social defeat stress was used to induce depression-like behaviors in mice, assessed with behavioral tests. Glycogen concentration in the medial prefrontal cortex (mPFC) and the expression of key enzymes of the glycogen metabolism were investigated using Western blots, immunofluorescent staining, electron microscopy, and biochemical assays. Stereotaxic surgery and viral-mediated gene transfer were applied to knockdown or overexpress brain-type glycogen phosphorylase (PYGB) in the mPFC. The glycogen content increased in the mPFC after stress. Glycogenolytic dysfunction due to inactivation of PYGB was responsible for glycogen accumulation. Behavioral tests on astrocyte-specific PYGB overexpression mice showed that augmenting astrocytic PYGB reduces susceptibility to depression when compared with stress-susceptible mice. Conversely, PYGB genetic down-regulation in the mPFC was sufficient to induce glycogen accumulation and depression-like behaviors. Furthermore, PYGB overexpression in the mPFC decreases susceptibility to depression, at least partially by rescuing glycogen phosphorylase activity to maintain glycogen metabolism homeostasis during stress. These findings indicate that (1) glycogen accumulation occurs in mice following stress and (2) glycogenolysis reprogramming leads to glycogen accumulation in astrocytes and PYGB contributes to stress-induced depression-like behaviors. Pharmacological tools acting on glycogenolysis might constitute a promising therapy for depression.
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Affiliation(s)
- Yuanyuan Zhu
- Department of Neurobiology, School of Basic Medicine, Fourth Military Medical University, Xi’an, China
| | - Ze Fan
- Department of Neurobiology, School of Basic Medicine, Fourth Military Medical University, Xi’an, China
- State Key Laboratory of Military Stomatology, Department of Anesthesiology, School of Stomatology, Fourth Military Medical University, Xi’an, China
| | - Qiuying Zhao
- Department of Neurobiology, School of Basic Medicine, Fourth Military Medical University, Xi’an, China
| | - Jiaqi Li
- Department of Neurobiology, School of Basic Medicine, Fourth Military Medical University, Xi’an, China
| | - Guohong Cai
- Department of Neurobiology, School of Basic Medicine, Fourth Military Medical University, Xi’an, China
| | - Rui Wang
- Department of Neurobiology, School of Basic Medicine, Fourth Military Medical University, Xi’an, China
| | - Yi Liang
- Department of Neurobiology, School of Basic Medicine, Fourth Military Medical University, Xi’an, China
| | - Naining Lu
- Department of Neurobiology, School of Basic Medicine, Fourth Military Medical University, Xi’an, China
| | - Junjun Kang
- Department of Neurobiology, School of Basic Medicine, Fourth Military Medical University, Xi’an, China
| | - Danlei Luo
- Center for Brain Science, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Huiren Tao
- Department of Spine Surgery, Shenzhen University General Hospital, Shenzhen, China
| | - Yan Li
- Center for Brain Science, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
- *Correspondence: Yan Li,
| | - Jing Huang
- Department of Neurobiology, School of Basic Medicine, Fourth Military Medical University, Xi’an, China
- Jing Huang,
| | - Shengxi Wu
- Department of Neurobiology, School of Basic Medicine, Fourth Military Medical University, Xi’an, China
- Shengxi Wu,
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Feng Y, Yang Y, Wang Y, Lv X, Zhang X, Wang Y, Zhu Y, Wang Q, He Z, Tai F, Jia R. Sex-dependent effects of pair bond interruption on anxiety- and depression-like behaviors in adult mandarin voles. Behav Processes 2021; 192:104497. [PMID: 34499983 DOI: 10.1016/j.beproc.2021.104497] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 08/20/2021] [Accepted: 09/03/2021] [Indexed: 11/19/2022]
Abstract
Stable and positive social bonds are pretty vital to the development of animals. Instability and disruptions of social bonds, such as maternal separation and social isolation, always produce disastrous influence on physiology, neuroendocrine and behaviors. Pair bond is one of the most important social bonds in adulthood. But the different effects of pair bond interruption between males and females are rarely studied. In the present study, the monogamous mandarin voles (Microtus mandarinus) were used to confirm the time window of pair bond formation. After that, voles were separated from their partner for 1 or 2 weeks. Then anxiety- and depression-like behaviors were investigated by using open field test, light-dark box test, tail suspension test and forced swimming test, respectively. The results showed that: (1) cohabitation for 5 days is sufficient and necessary for mandarin voles to form pair bond; (2) loss of partner is always crucial for the effects of pair bond interruption, while social isolation works in certain behavioral tests.; (3) pair bond interruption for 2 weeks significantly increased the level of anxiety and depression in adult males, but not female mandarin voles. Overall, this research suggested that loss of partner plays a key role in pair bond interruption in male mandarin voles.
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Affiliation(s)
- Yiqin Feng
- Institute of Brain and Behavioral Science, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi, 710119, China
| | - Yuying Yang
- Institute of Brain and Behavioral Science, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi, 710119, China
| | - Yuan Wang
- Institute of Brain and Behavioral Science, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi, 710119, China
| | - Xiaohuan Lv
- Institute of Brain and Behavioral Science, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi, 710119, China
| | - Xin Zhang
- Institute of Brain and Behavioral Science, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi, 710119, China
| | - Yuqian Wang
- Institute of Brain and Behavioral Science, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi, 710119, China
| | - Yunmeng Zhu
- Institute of Brain and Behavioral Science, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi, 710119, China
| | - Qiao Wang
- Institute of Brain and Behavioral Science, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi, 710119, China
| | - Zhixiong He
- Institute of Brain and Behavioral Science, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi, 710119, China
| | - Fadao Tai
- Institute of Brain and Behavioral Science, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi, 710119, China.
| | - Rui Jia
- Institute of Brain and Behavioral Science, College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi, 710119, China; MOE Key Laboratory of Modern Teaching Technology, Shaanxi Normal University, Xi'an, Shaanxi, 710062, China.
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8
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Cai W, Ma H, Xun Y, Hou W, Wang L, Zhang X, Ran Y, Yuan W, Guo Q, Zhang J, Li L, Yang Y, Li Y, Lv Z, He Z, Jia R, Tai F. Involvement of the dopamine system in paternal behavior induced by repeated pup exposure in virgin male ICR mice. Behav Brain Res 2021; 415:113519. [PMID: 34389426 DOI: 10.1016/j.bbr.2021.113519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 07/06/2021] [Accepted: 08/07/2021] [Indexed: 10/20/2022]
Abstract
Like mothers, fathers play a vital role in the development of the brain and behavior of offspring in mammals with biparental care. Unlike mothers, fathers do not experience the physiological processes of pregnancy, parturition, or lactation before their first contact with offspring. Whether pup exposure can induce the onset of paternal behavior and the underlying neural mechanisms remains unclear. By using Slc:ICR male mice exhibiting maternal-like parental care, the present study found that repeated exposure to pups for six days significantly increased the total duration of paternal behavior and shortened the latency to retrieve and care for pups. Repeated pup exposure increased c-Fos-positive neurons and the levels of dopamine- and TH-positive neurons in the nucleus accumbens (NAc). In addition, inhibition of dopamine projections from the ventral tegmental area to the NAc using chemogenetic methods reduced paternal care induced by repeated pup exposure. In conclusion, paternal behavior in virgin male ICR mice can be initiated by repeated pup exposure via sensitization, and the dopamine system may be involved in this process.
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Affiliation(s)
- Wenqi Cai
- College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi, China
| | - Huan Ma
- College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi, China
| | - Yufeng Xun
- College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi, China
| | - Wenjuan Hou
- College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi, China
| | - Limin Wang
- College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi, China
| | - Xueni Zhang
- College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi, China
| | - Yufeng Ran
- College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi, China
| | - Wei Yuan
- College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi, China
| | - Qianqian Guo
- College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi, China
| | - Jing Zhang
- College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi, China
| | - Laifu Li
- College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi, China
| | - Yang Yang
- College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi, China
| | - Yitong Li
- College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi, China
| | - Zijian Lv
- College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi, China
| | - Zhixiong He
- College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi, China
| | - Rui Jia
- College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi, China.
| | - Fadao Tai
- College of Life Sciences, Shaanxi Normal University, Xi'an, Shaanxi, China.
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Zhang X, Xun Y, Wang L, Zhang J, Hou W, Ma H, Cai W, Li L, Guo Q, Li Y, Lv Z, Jia R, Tai F, He Z. Involvement of the dopamine system in the effect of chronic social isolation during adolescence on social behaviors in male C57 mice. Brain Res 2021; 1765:147497. [PMID: 33894223 DOI: 10.1016/j.brainres.2021.147497] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 03/22/2021] [Accepted: 04/18/2021] [Indexed: 01/10/2023]
Abstract
In the early stage of life, experiencing social isolation can generate long-lasting deleterious effects on behaviors and brain development. However, the effects of chronic social isolation during adolescence on social behaviors and its underlying neurobiological mechanisms remain unclear. The present study found that four weeks of social isolation during adolescence impaired social recognition ability in the three-chamber test and five-trial social recognition test, and increased aggressive-like behaviors, but reduced environmental exploration, as showed in the social interaction test. Chronic social isolation decreased levels of dopamine D2 receptor in the shell of the nucleus accumbens (NAcc) and medial prefrontal cortex. It also reduced TH in the NAcc. Using in vivo fiber photometry, it was also found that isolated mice displayed a reduction in NAcc shell activity upon exploring unfamiliar social stimuli. An injection of a 100 ng dose of the D2R agonist quinpirole into the shell of the NAcc reversed behavioral abnormalities induced by chronic social isolation. These data suggest that the dopamine system is involved in alterations in social behaviors induced by chronic social isolation. This finding sheds light on the mechanism underlying abnormalities in social behavior induced by adolescent chronic social isolation and provides a promising target to treat mental diseases relevant to social isolation.
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Affiliation(s)
- Xueni Zhang
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Yufeng Xun
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Limin Wang
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Jing Zhang
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Wenjuan Hou
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Huan Ma
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Wenqi Cai
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Laifu Li
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Qianqian Guo
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Yitong Li
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Zijian Lv
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Rui Jia
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
| | - Fadao Tai
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China.
| | - Zhixiong He
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, China
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Zou HW, Li ZL, Jing XY, Wang Y, Liu YJ, Li LF. The GABA(B1) receptor within the infralimbic cortex is implicated in stress resilience and vulnerability in mice. Behav Brain Res 2021; 406:113240. [PMID: 33727046 DOI: 10.1016/j.bbr.2021.113240] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 03/09/2021] [Accepted: 03/09/2021] [Indexed: 12/24/2022]
Abstract
Resilience is the capacity to maintain normal psychological and physical functions in the face of stress and adversity. Understanding how one can develop and enhance resilience is of great relevance to not only promoting coping mechanisms but also mitigating maladaptive stress responses in psychiatric illnesses such as depression. Preclinical studies suggest that GABA(B) receptors (GABA(B1) and GABA(B2)) are potential targets for the treatment of major depression. In this study, we assessed the functional role of GABA(B) receptors in stress resilience and vulnerability by using a chronic unpredictable stress (CUS) model in mice. As the medial prefrontal cortex (mPFC) plays a key role in the top-down modulation of stress responses, we focused our study on this brain structure. Our results showed that only approximately 41.9% of subjects exhibited anxiety- or despair-like behaviors after exposure to CUS. The vulnerable mice showed higher c-Fos expression in the infralimbic cortex (IL) subregion of the mPFC when exposed to a social stressor. Moreover, the expression of GABA(B1) but not GABA(B2) receptors was significantly downregulated in IL subregion of susceptible mice. Finally, we found that intra-IL administration of baclofen, a GABA(B) receptor agonist, rapidly relieved the social avoidance symptoms of the "stress-susceptible" mice. Taken together, our results show that the GABA(B1) receptor within the IL may play an important role in stress resilience and vulnerability, and thus open an avenue to develop novel, personalized approaches to promote stress resilience and treat stress-related psychiatric disorders.
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Affiliation(s)
- Hua-Wei Zou
- College of Life Science and Technology, Nanyang Normal University, Nanyang, 473061, China
| | - Zi-Lin Li
- College of Life Science and Technology, Nanyang Normal University, Nanyang, 473061, China
| | - Xiao-Yuan Jing
- College of Life Science and Technology, Nanyang Normal University, Nanyang, 473061, China
| | - Yan Wang
- College of Life Science and Technology, Nanyang Normal University, Nanyang, 473061, China
| | - Ying-Juan Liu
- College of Life Science and Technology, Nanyang Normal University, Nanyang, 473061, China.
| | - Lai-Fu Li
- College of Life Science and Technology, Nanyang Normal University, Nanyang, 473061, China.
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