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Eraslan E, Castelhano-Carlos MJ, Amorim L, Soares-Cunha C, Rodrigues AJ, Sousa N. Physiological and behavioral contagion/buffering effects of chronic unpredictable stress in a socially enriched environment: A preliminary study. Neurobiol Stress 2024; 30:100635. [PMID: 38645599 PMCID: PMC11031999 DOI: 10.1016/j.ynstr.2024.100635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 03/18/2024] [Accepted: 04/09/2024] [Indexed: 04/23/2024] Open
Abstract
Rodents are sensitive to the emotional state of conspecifics. While the presence of affiliative social partners mitigates the physiological response to stressors (buffering), the partners of stressed individuals show behavioral and endocrine changes indicating that stress parameters can be transmitted across the group members (contagion). In this study, we investigated the social contagion/buffering phenomena in behavior and neuroendocrine mechanisms after exposure to chronic stress, in groups of rats living in the PhenoWorld (PhW). Three groups were tested (8 stressed rats, 8 unstressed rats, and a mixed group with 4 and 4) and these were analyzed under 4 conditions: stressed (pure stress group, n = 8), unstressed (naive control group, n = 8), stressed from mixed group (stressed companion group, n = 8), unstressed from mixed group (unstressed companion group, n = 8. While naive control animals remained undisturbed, pure stress group animals were all exposed to stress. Half of the animals under the mixed-treatment condition were exposed to stress (stressed companion group) and cohabitated with their unstressed partners (unstressed companion group). We confirmed the well-established chronic unpredictable stress (CUS) effects in physiological, behavioral, and neuroendocrine endpoints; body weight gain, open arm entries and time in EPM, and oxytocin receptor expression levels in the amygdala decreased by stress exposure, whereas adrenal weight was increased by stress. Furthermore, we found that playing, rearing and solitary resting behaviors decreased, whereas huddling behavior increased by CUS. In addition, we detected significant increases (stress-buffering) in body weight gain and huddling behaviors between pure stress and stress companion animals, and significant stress contagion effects in emotional behavior and oxytocin receptor expression levels between naive control and control companion groups. Hence, we demonstrate buffering and contagion effects were evident in physiological parameters, emotional behaviors, and social home-cage behaviors of rats and we suggest a possible mediation of these effects by oxytocin neurotransmission. In conclusion, the results herein suggest that the stress status of animals living in the same housing environment influences the behavior of the group.
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Affiliation(s)
- Evren Eraslan
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's – PT Government Associate Laboratory, Guimarães, Portugal
- Faculty of Veterinary Medicine, Department of Physiology, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Magda J. Castelhano-Carlos
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's – PT Government Associate Laboratory, Guimarães, Portugal
| | - Liliana Amorim
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's – PT Government Associate Laboratory, Guimarães, Portugal
- P5 Clinical Digital Center, Braga, Portugal
| | - Carina Soares-Cunha
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's – PT Government Associate Laboratory, Guimarães, Portugal
| | - Ana J. Rodrigues
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's – PT Government Associate Laboratory, Guimarães, Portugal
| | - Nuno Sousa
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's – PT Government Associate Laboratory, Guimarães, Portugal
- P5 Clinical Digital Center, Braga, Portugal
- Clinical Academic Center (2CA), Braga, Portugal
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Piriyaprasath K, Hasegawa M, Kakihara Y, Iwamoto Y, Kamimura R, Saito I, Fujii N, Yamamura K, Okamoto K. Effects of stress contagion on anxiogenic- and orofacial inflammatory pain-like behaviors with brain activation in mice. Eur J Oral Sci 2023:e12942. [PMID: 37377104 DOI: 10.1111/eos.12942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 06/11/2023] [Indexed: 06/29/2023]
Abstract
The conditions of stress contagion are induced in bystanders without direct experiences of stressful events. This study determined the effects of stress contagion on masseter muscle nociception in mice. Stress contagion was developed in the bystanders after cohabitating with a conspecific mouse subjected to social defeat stress for 10 days. On Day 11, stress contagion increased anxiety- and orofacial inflammatory pain-like behaviors. The c-Fos and FosB immunoreactivities evoked by masseter muscle stimulation were increased in the upper cervical spinal cord, while c-Fos expressions were increased in the rostral ventromedial medulla, including the lateral paragigantocellular reticular nucleus and nucleus raphe magnus in stress contagion mice. The level of serotonin in the rostral ventromedial medulla was increased under stress contagion, while the number of serotonin positive cells was increased in the lateral paragigantocellular reticular nucleus. Stress contagion increased c-Fos and FosB expressions in the anterior cingulate cortex and insular cortex, both of which were positively correlated with orofacial inflammatory pain-like behaviors. The level of brain-derived neurotrophic factor was increased in the insular cortex under stress contagion. These results indicate that stress contagion can cause neural changes in the brain, resulting in increased masseter muscle nociception, as seen in social defeat stress mice.
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Affiliation(s)
- Kajita Piriyaprasath
- Division of Oral Physiology, Faculty of Dentistry and Graduate School of Medical and Dental Sciences, Niigata University, Niigata City, Japan
- Department of Restorative Dentistry, Faculty of Dentistry, Naresuan University, Phitsanulok, Thailand
| | - Mana Hasegawa
- Division of Oral Physiology, Faculty of Dentistry and Graduate School of Medical and Dental Sciences, Niigata University, Niigata City, Japan
- Division of General Dentistry and Dental Clinical Education Unit, Faculty of Dentistry and Graduate School of Medical and Dental Sciences, Niigata University, Niigata City, Japan
| | - Yoshito Kakihara
- Division of Dental Pharmacology, Faculty of Dentistry and Graduate School of Medical and Dental Sciences, Niigata University, Niigata City, Japan
| | - Yuya Iwamoto
- Division of Oral Physiology, Faculty of Dentistry and Graduate School of Medical and Dental Sciences, Niigata University, Niigata City, Japan
- Division of General Dentistry and Dental Clinical Education Unit, Faculty of Dentistry and Graduate School of Medical and Dental Sciences, Niigata University, Niigata City, Japan
| | - Rantaro Kamimura
- Division of Orthodontics, Faculty of Dentistry and Graduate School of Medical and Dental Sciences, Niigata University, Niigata City, Japan
| | - Isao Saito
- Division of Orthodontics, Faculty of Dentistry and Graduate School of Medical and Dental Sciences, Niigata University, Niigata City, Japan
| | - Noritaka Fujii
- Division of General Dentistry and Dental Clinical Education Unit, Faculty of Dentistry and Graduate School of Medical and Dental Sciences, Niigata University, Niigata City, Japan
| | - Kensuke Yamamura
- Division of Oral Physiology, Faculty of Dentistry and Graduate School of Medical and Dental Sciences, Niigata University, Niigata City, Japan
| | - Keiichiro Okamoto
- Division of Oral Physiology, Faculty of Dentistry and Graduate School of Medical and Dental Sciences, Niigata University, Niigata City, Japan
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Frank D, Gruenbaum BF, Shelef I, Zvenigorodsky V, Severynovska O, Fleidervish I, Knyazer B, Frenkel A, Zlotnik A, Kofman O, Boyko M. Blood glutamate scavenging as a novel glutamate-based therapeutic approach for post-traumatic brain injury anxiety and social impairment. Transl Psychiatry 2023; 13:41. [PMID: 36739271 PMCID: PMC9899234 DOI: 10.1038/s41398-023-02329-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 01/18/2023] [Accepted: 01/20/2023] [Indexed: 02/06/2023] Open
Abstract
Traumatic brain injury (TBI) is a serious condition that is associated with an increased risk of severe, long-term psychiatric consequences. Drugs that target the glutamatergic system have proven successful in treating both TBI and many of its psychiatric sequelae. Blood glutamate scavengers (BGS) cause a decrease in blood glutamate levels, leading to a reduction in glutamate's concentration gradient from the brain to the blood and decreased levels of brain glutamate. This study evaluated the BGS pyruvate as a treatment for TBI-related neuropsychiatric conditions in a rat model. 213 rats were divided into four groups in a 2 × 2 design: Sham or TBI rats treated with pyruvate or control treatment. Magnetic resonance imaging, neurological status, brain glutamate and blood glutamate levels were assessed following the injury. Four weeks after the start of treatment, all rats underwent behavioral tests to assess anxious behavior and social impairment (aggressive and hierarchical behavior). Rats responded positively to pyruvate in several tasks, lowering brain glutamate levels and reducing anxiety and depression, as well as modulating TBI-related changes in social behavior. Glutamate scavenging with pyruvate may be an effective therapeutic option for post-TBI behavioral changes by reducing associated elevations in brain glutamate levels.
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Affiliation(s)
- Dmitry Frank
- grid.412686.f0000 0004 0470 8989Department of Anesthesiology and Critical Care, Soroka University Medical Center, Ben-Gurion of the Negev, Beer-Sheva, Israel
| | - Benjamin F. Gruenbaum
- grid.417467.70000 0004 0443 9942Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Jacksonville, FL USA
| | - Ilan Shelef
- grid.412686.f0000 0004 0470 8989Department of Radiology, Soroka University Medical Center, Ben-Gurion of the Negev, Beer-Sheva, Israel
| | - Vladislav Zvenigorodsky
- grid.412686.f0000 0004 0470 8989Department of Radiology, Soroka University Medical Center, Ben-Gurion of the Negev, Beer-Sheva, Israel
| | - Olena Severynovska
- Department of Biochemistry and Physiology of the Faculty of Biology and Ecology, Oles Gonchar of the Dnipro National University, Dnipro, Ukraine
| | - Ilya Fleidervish
- grid.7489.20000 0004 1937 0511Department of Physiology and Cell Biology, Faculty of Health Sciences and Zlotowski Center for Neuroscience, Ben–Gurion University of the Negev, Beer-Sheva, 84105 Israel
| | - Boris Knyazer
- grid.7489.20000 0004 1937 0511Department of Ophthalmology, Soroka University Medical Center and the Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Amit Frenkel
- grid.412686.f0000 0004 0470 8989Department of Anesthesiology and Critical Care, Soroka University Medical Center, Ben-Gurion of the Negev, Beer-Sheva, Israel
| | - Alexander Zlotnik
- grid.412686.f0000 0004 0470 8989Department of Anesthesiology and Critical Care, Soroka University Medical Center, Ben-Gurion of the Negev, Beer-Sheva, Israel
| | - Ora Kofman
- grid.7489.20000 0004 1937 0511Psychology Department, Zlotowski Center for Neuroscience, Ben-Gurion University of the Negev, POB 653, Beer-Sheva, 84105 Israel
| | - Matthew Boyko
- Department of Anesthesiology and Critical Care, Soroka University Medical Center, Ben-Gurion of the Negev, Beer-Sheva, Israel.
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Sakamoto N, Kakeno H, Ozaki N, Miyazaki Y, Kobayashi K, Murata T. Marker-less tracking system for multiple mice using Mask R-CNN. Front Behav Neurosci 2023; 16:1086242. [PMID: 36688129 PMCID: PMC9853548 DOI: 10.3389/fnbeh.2022.1086242] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 12/16/2022] [Indexed: 01/07/2023] Open
Abstract
Although the appropriate evaluation of mouse behavior is crucial in pharmacological research, most current methods focus on single mouse behavior under light conditions, owing to the limitations of human observation and experimental tools. In this study, we aimed to develop a novel marker-less tracking method for multiple mice with top-view videos using deep-learning-based techniques. The following stepwise method was introduced: (i) detection of mouse contours, (ii) assignment of identifiers (IDs) to each mouse, and (iii) correction of mis-predictions. The behavior of C57BL/6 mice was recorded in an open-field arena, and the mouse contours were manually annotated for hundreds of frame images. Then, we trained the mask regional convolutional neural network (Mask R-CNN) with all annotated images. The mouse contours predicted by the trained model in each frame were assigned to IDs by calculating the similarities of every mouse pair between frames. After assigning IDs, correction steps were applied to remove the predictive errors semi-automatically. The established method could accurately predict two to four mice for first-look videos recorded under light conditions. The method could also be applied to videos recorded under dark conditions, extending our ability to accurately observe and analyze the sociality of nocturnal mice. This technology would enable a new approach to understand mouse sociality and advance the pharmacological research.
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Affiliation(s)
- Naoaki Sakamoto
- Animal Radiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Hitoshi Kakeno
- Animal Radiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Noriko Ozaki
- Animal Radiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Yusuke Miyazaki
- Animal Radiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Koji Kobayashi
- Food and Animal Systemics, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Takahisa Murata
- Animal Radiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan,Food and Animal Systemics, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan,Veterinary Pharmacology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan,*Correspondence: Takahisa Murata,
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5
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Boyko M, Gruenbaum BF, Shelef I, Zvenigorodsky V, Severynovska O, Binyamin Y, Knyazer B, Frenkel A, Frank D, Zlotnik A. Traumatic brain injury-induced submissive behavior in rats: link to depression and anxiety. Transl Psychiatry 2022; 12:239. [PMID: 35672289 PMCID: PMC9174479 DOI: 10.1038/s41398-022-01991-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 05/19/2022] [Accepted: 05/25/2022] [Indexed: 11/29/2022] Open
Abstract
Traumatic brain injury (TBI) affects millions of people worldwide, many of whom are affected with post-TBI mood disorders or behavioral changes, including aggression or social withdrawal. Diminished functionality can persist for decades after TBI and delay rehabilitation and resumption of employment. It has been established that there is a relationship between these mental disorders and brain injury. However, the etiology and causal relationships behind these conditions are poorly understood. Rodent models provide a helpful tool for researching mood disorders and social impairment due to their natural tendencies to form social hierarchies. Here, we present a rat model of mental complications after TBI using a suite of behavioral tests to examine the causal relationships between changes in social behavior, including aggressive, hierarchical, depressive, and anxious behavior. For this purpose, we used multivariate analysis to identify causal relationships between the above post-TBI psychiatric sequelae. We performed statistical analysis using principal component analysis, discriminant analysis, and correlation analysis, and built a model to predict dominant-submissive behavior based on the behavioral tests. This model displayed a predictive accuracy of 93.3% for determining dominant-submissive behavior in experimental groups. Machine learning algorithms determined that in rats, aggression is not a principal prognostic factor for dominant-submissive behavior. Alternatively, dominant-submissive behavior is determined solely by the rats' depressive-anxious state and exploratory activity. We expect the causal approach used in this study will guide future studies into mood conditions and behavioral changes following TBI.
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Affiliation(s)
- Matthew Boyko
- Department of Anesthesiology and Critical Care, Soroka University Medical Center and the Faculty of Health Sciences, Ben-Gurion University of the Negev, Beersheba, Israel.
| | - Benjamin F Gruenbaum
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Jacksonville, FL, USA
| | - Ilan Shelef
- Department of Radiology, Soroka University Medical Center and the Faculty of Health Sciences, Ben-Gurion University of the Negev, Beersheba, Israel
| | - Vladislav Zvenigorodsky
- Department of Radiology, Soroka University Medical Center and the Faculty of Health Sciences, Ben-Gurion University of the Negev, Beersheba, Israel
| | - Olena Severynovska
- Department of Biochemistry and Physiology of the Faculty of Biology and Ecology Oles Gonchar of the Dnipro National University, Dnipro, Ukraine
| | - Yair Binyamin
- Department of Anesthesiology and Critical Care, Soroka University Medical Center and the Faculty of Health Sciences, Ben-Gurion University of the Negev, Beersheba, Israel
| | - Boris Knyazer
- Department of Ophthalmology, Soroka University Medical Center and the Faculty of Health Sciences, Ben-Gurion University of the Negev, Beersheba, Israel
| | - Amit Frenkel
- Department of Anesthesiology and Critical Care, Soroka University Medical Center and the Faculty of Health Sciences, Ben-Gurion University of the Negev, Beersheba, Israel
| | - Dmitry Frank
- Department of Anesthesiology and Critical Care, Soroka University Medical Center and the Faculty of Health Sciences, Ben-Gurion University of the Negev, Beersheba, Israel
| | - Alexander Zlotnik
- Department of Anesthesiology and Critical Care, Soroka University Medical Center and the Faculty of Health Sciences, Ben-Gurion University of the Negev, Beersheba, Israel
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6
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Frank D, Gruenbaum BF, Shelef I, Zvenigorodsky V, Severynovska O, Gal R, Dubilet M, Zlotnik A, Kofman O, Boyko M. Blood Glutamate Scavenging With Pyruvate as a Novel Preventative and Therapeutic Approach for Depressive-Like Behavior Following Traumatic Brain Injury in a Rat Model. Front Neurosci 2022; 16:832478. [PMID: 35237125 PMCID: PMC8883046 DOI: 10.3389/fnins.2022.832478] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 01/07/2022] [Indexed: 12/14/2022] Open
Abstract
Depression is a common and serious complication following traumatic brain injury (TBI). Both depression and TBI have independently been associated with pathologically elevated extracellular brain glutamate levels. In the setting of TBI, blood glutamate scavenging with pyruvate has been widely shown as an effective method to provide neuroprotection by reducing blood glutamate and subsequent brain glutamate levels. Here we evaluate pyruvate as a novel approach in the treatment and prevention of post-TBI depression-like behavior in a rat model. Rats were divided into five groups: (1) sham-operated control with pyruvate, (2) sham-operated control with placebo, (3) post-TBI with placebo, (4) post-TBI given preventative pyruvate, and (5) post-TBI treated with pyruvate. These groups had an equal number of females and males. Rats were assessed for depressive-like behavior, neurological status, and glutamate levels in the blood and brain. Post-TBI neurological deficits with concurrent elevations in glutamate levels were demonstrated, with peak glutamate levels 24 h after TBI. Following TBI, the administration of either prophylactic or therapeutic pyruvate led to reduced glutamate levels, improved neurologic recovery, and improved depressive-like behavior. Glutamate scavenging with pyruvate may be an effective prophylactic and therapeutic option for post-TBI depression by reducing associated elevations in brain glutamate levels.
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Affiliation(s)
- Dmitry Frank
- Department of Anesthesiology and Critical Care, Soroka University Medical Center, Ben-Gurion University of the Negev, Be’er Sheva, Israel
| | - Benjamin F. Gruenbaum
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Jacksonville, FL, United States
| | - Ilan Shelef
- Department of Radiology, Soroka University Medical Center, Ben-Gurion University of the Negev, Be’er Sheva, Israel
| | - Vladislav Zvenigorodsky
- Department of Radiology, Soroka University Medical Center, Ben-Gurion University of the Negev, Be’er Sheva, Israel
| | - Olena Severynovska
- Department of Physiology, Faculty of Biology, Ecology and Medicine, Dnepropetrovsk State University, Dnepropetrovsk, Ukraine
| | - Ron Gal
- Department of Anesthesiology and Critical Care, Soroka University Medical Center, Ben-Gurion University of the Negev, Be’er Sheva, Israel
| | - Michael Dubilet
- Department of Anesthesiology and Critical Care, Soroka University Medical Center, Ben-Gurion University of the Negev, Be’er Sheva, Israel
| | - Alexander Zlotnik
- Department of Anesthesiology and Critical Care, Soroka University Medical Center, Ben-Gurion University of the Negev, Be’er Sheva, Israel
| | - Ora Kofman
- Department of Psychology, Zlotowski Center for Neuroscience, Ben-Gurion University of the Negev, Be’er Sheva, Israel
| | - Matthew Boyko
- Department of Anesthesiology and Critical Care, Soroka University Medical Center, Ben-Gurion University of the Negev, Be’er Sheva, Israel
- *Correspondence: Matthew Boyko,
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Paz LV, Viola TW, Milanesi BB, Sulzbach JH, Mestriner RG, Wieck A, Xavier LL. Contagious Depression: Automatic Mimicry and the Mirror Neuron System - A Review. Neurosci Biobehav Rev 2021; 134:104509. [PMID: 34968526 DOI: 10.1016/j.neubiorev.2021.12.032] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 06/19/2021] [Accepted: 12/19/2021] [Indexed: 12/21/2022]
Abstract
Contagious depression is a theory proposing that depression can be induced or triggered by our social environment. This theory is based on emotional contagion, the idea that affective states can be transferred during social interaction, since humans can use emotional contagion to communicate feelings and emotions in conscious and unconscious ways. This review presents behavioral, physiological, and neuroanatomical aspects of two essential contagious depression mechanisms, automatic mimicry and the mirror neuron system.
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Affiliation(s)
- Lisiê Valéria Paz
- Pontifícia Universidade Católica do Rio Grande do Sul, PUCRS, Escola de Ciências da Saúde e da Vida, Programa de Pós-Graduação em Biologia Celular e Molecular, Laboratório de Biologia Celular e Tecidual, Av. Ipiranga 6681, Prédio 12C, Sala 104, Porto Alegre, Rio Grande do Sul CEP 90619-900, Brazil.
| | - Thiago Wendt Viola
- Pontifícia Universidade Católica do Rio Grande do Sul, PUCRS, Escola de Ciências da Saúde e da Vida, Programa de Pós-Graduação em Psicologia, Avenida Ipiranga 6681, prédio 11, sala 926, Porto Alegre, Rio Grande do Sul CEP 90619-900, Brazil.
| | - Bruna Bueno Milanesi
- Pontifícia Universidade Católica do Rio Grande do Sul, PUCRS, Escola de Ciências da Saúde e da Vida, Programa de Pós-Graduação em Biologia Celular e Molecular, Laboratório de Biologia Celular e Tecidual, Av. Ipiranga 6681, Prédio 12C, Sala 104, Porto Alegre, Rio Grande do Sul CEP 90619-900, Brazil.
| | - Juliana Henz Sulzbach
- Pontifícia Universidade Católica do Rio Grande do Sul, PUCRS, Escola de Ciências da Saúde e da Vida, Programa de Pós-Graduação em Biologia Celular e Molecular, Laboratório de Biologia Celular e Tecidual, Av. Ipiranga 6681, Prédio 12C, Sala 104, Porto Alegre, Rio Grande do Sul CEP 90619-900, Brazil.
| | - Régis Gemerasca Mestriner
- Pontifícia Universidade Católica do Rio Grande do Sul, PUCRS, Escola de Ciências da Saúde e da Vida, Programa de Pós-Graduação em Biologia Celular e Molecular, Laboratório de Biologia Celular e Tecidual, Av. Ipiranga 6681, Prédio 12C, Sala 104, Porto Alegre, Rio Grande do Sul CEP 90619-900, Brazil.
| | - Andrea Wieck
- Pontifícia Universidade Católica do Rio Grande do Sul, PUCRS, Escola de Ciências da Saúde e da Vida, Programa de Pós-Graduação em Biologia Celular e Molecular, Laboratório de Biologia Celular e Tecidual, Av. Ipiranga 6681, Prédio 12C, Sala 104, Porto Alegre, Rio Grande do Sul CEP 90619-900, Brazil.
| | - Léder Leal Xavier
- Pontifícia Universidade Católica do Rio Grande do Sul, PUCRS, Escola de Ciências da Saúde e da Vida, Programa de Pós-Graduação em Biologia Celular e Molecular, Laboratório de Biologia Celular e Tecidual, Av. Ipiranga 6681, Prédio 12C, Sala 104, Porto Alegre, Rio Grande do Sul CEP 90619-900, Brazil.
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Parvopassu A, Oggiano M, Festucci F, Curcio G, Alleva E, Adriani W. Altering the development of the dopaminergic system through social play in rats: Implications for anxiety, depression, hyperactivity, and compulsivity. Neurosci Lett 2021; 760:136090. [PMID: 34197903 DOI: 10.1016/j.neulet.2021.136090] [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: 04/19/2021] [Revised: 06/25/2021] [Accepted: 06/25/2021] [Indexed: 12/31/2022]
Abstract
Dopamine is essential to many functions like reward, motivation, and attention; when its neural pathways do not function properly, various disorders (e.g., anxiety, depression, hyperactivity, compulsions) can arise. Truncated-DAT rats display persistent stereotypies and aggressiveness; hence they are a new valuable animal model to study the pathogenesis of these disorders. The focus of research is often on the individual epigenetic determinants and much less on the impact of social experiences. Here, we investigate the developmental impact of the social environment on adolescent wild type (WT) rats. We divided subjects at weaning into three groups: living with another adolescent (WT Peer), with a WT adult, or with a truncated-DAT one, and we observed homecage social behavior of these pairs (play, jump, victory, and "bullying") during whole adolescence. When adult, we observed the same subjects in plus maze, forced swim, and social preference tests to measure levels of anxiety, depression, and quality of social interactions. Compared to the other groups, WT rats that had spent their adolescence with a truncated-DAT adult as companion show more anxious, depressive, hyperactive, impulsive, and compulsive behaviours. Results confirm that social interactions and healthy play (i.e., when play has behavioural, social, and psychomotor rewards that support the cognitive, emotional and physical development of the individual) are essential to neurobehavioral maturation. Conversely, anomalous interactions like poor play and "bullying" in developing rats may impact onto their dopaminergic system. Consequently, an impoverished social play could be one of the factors contributing to the appearance of putative indexes of attention deficit hyperactivity disorder (ADHD) and\or obsessive-compulsive disorder (OCD).
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Affiliation(s)
- Anna Parvopassu
- Sapienza University of Rome, Piazzale Aldo Moro 5, Rome, Italy; Center for Behavioural Sciences and Mental Health, Istituto Superiore di Sanità, Viale Regina Elena 299, Rome, Italy
| | - Maurizio Oggiano
- European Mind and Metabolism Association, Via Valtellina 108, Rome, Italy
| | - Fabiana Festucci
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, Piazzale Salvatore Tommasi 1, L'Aquila, Italy; Center for Behavioural Sciences and Mental Health, Istituto Superiore di Sanità, Viale Regina Elena 299, Rome, Italy
| | - Giuseppe Curcio
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, Piazzale Salvatore Tommasi 1, L'Aquila, Italy
| | - Enrico Alleva
- Center for Behavioural Sciences and Mental Health, Istituto Superiore di Sanità, Viale Regina Elena 299, Rome, Italy
| | - Walter Adriani
- European Mind and Metabolism Association, Via Valtellina 108, Rome, Italy; Center for Behavioural Sciences and Mental Health, Istituto Superiore di Sanità, Viale Regina Elena 299, Rome, Italy.
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Meade GM, Charron LS, Kilburn LW, Pei Z, Wang HY, Robinson S. A model of negative emotional contagion between male-female rat dyads: Effects of voluntary exercise on stress-induced behavior and BDNF-TrkB signaling. Physiol Behav 2021; 234:113286. [DOI: 10.1016/j.physbeh.2020.113286] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 12/08/2020] [Accepted: 12/09/2020] [Indexed: 12/19/2022]
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10
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Yin Q, Du T, Yang C, Li X, Zhao Z, Liu R, Yang B, Liu B. Gadd45b is a novel mediator of depression-like behaviors and neuroinflammation after cerebral ischemia. Biochem Biophys Res Commun 2021; 554:107-113. [PMID: 33784505 DOI: 10.1016/j.bbrc.2021.03.104] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Accepted: 03/19/2021] [Indexed: 12/26/2022]
Abstract
BACKGROUND Poststroke depression (PSD) is an important consequence after stroke, with a negative impact on stroke outcome. Recent evidence points to a modulatory role of Growth arrest and DNA-damage-inducible protein 45 beta (Gadd45b) in depression. Herein, we evaluated the antidepressant efficacy and mechanism underlying the potent therapeutic effects of Gadd45b after cerebral ischemia. METHODS Adult male Sprague-Dawley rats were subjected to cerebral ischemia by permanent middle cerebral artery occlusion (MCAO). The sucrose preference test (SPT), forced swim test (FST), and tail suspension test (TST) were performed after completing MCAO to study the antidepressant-like effects. The expression of brain-derived neurotrophic factor (BDNF) and neuroinflammation were determined in the hippocampus. RESULTS We showed that Gadd45b knockdown induced depression-like behaviors after cerebral ischemia, including increased immobility time in the FST and TST and reduced sucrose preference. Gadd45b knockdown enhanced the expression of pro-inflammatory cytokines IL-6 and TNF-α, accompanying with decreased protein levels of BDNF in the hippocampus. Moreover, the levels of phosphorylated ERK and CREB, which have been implicated in events downstream of BDNF signaling, were also decreased after cerebral ischemia. CONCLUSION Hence, the results showed that Gadd45b is a promising drug candidate for treating PSD and possibly other nervous system diseases associated with neuroinflammation. Gadd45b may have therapeutic potential for PSD through BDNF-ERK-CREB pathway and neuroinflammation.
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Affiliation(s)
- Qingqing Yin
- Department of Geriatric Neurology, Shandong Provincial Hospital, School of Medicine, Shandong University, Jinan, Shandong, 250021, China; Department of Geriatrics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China
| | - Tong Du
- Department of Neurology, The First Affiliated Hospital of Shandong First Medical University, Jinan, 250014, China
| | - Chunlin Yang
- Department of Neurology, The First Affiliated Hospital of Shandong First Medical University, Jinan, 250014, China
| | - Xiaoli Li
- Department of Neurology, The First Affiliated Hospital of Shandong First Medical University, Jinan, 250014, China
| | - Zeyu Zhao
- Department of Neurology, The First Affiliated Hospital of Shandong First Medical University, Jinan, 250014, China
| | - Rutao Liu
- Department of Neurology, The First Affiliated Hospital of Shandong First Medical University, Jinan, 250014, China
| | - Bing Yang
- Department of Neurology, The First Affiliated Hospital of Shandong First Medical University, Jinan, 250014, China
| | - Bin Liu
- Department of Neurology, The First Affiliated Hospital of Shandong First Medical University, Jinan, 250014, China.
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Jiang Y, Liu Y, Gao M, Xue M, Wang Z, Liang H. Nicotinamide riboside alleviates alcohol-induced depression-like behaviours in C57BL/6J mice by altering the intestinal microbiota associated with microglial activation and BDNF expression. Food Funct 2020; 11:378-391. [PMID: 31820774 DOI: 10.1039/c9fo01780a] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The gut microbiota play an important role in many central nervous system diseases through the gut microbiota-brain axis. Recent studies suggest that nicotinamide riboside (NR) has neuroprotective properties. However, it is unknown whether NR can prevent or protect against alcohol-induced depression. Furthermore, it is unclear whether its therapeutic action involves changes in the composition of the gut microbiome. Here, we investigated the effects of NR in the mouse model of alcohol-induced depression. Treatment with NR improved the alcohol-induced depressive behaviour in mice. In addition, NR decreased the number of activated microglia in the hippocampus, and it reduced the levels of pro-inflammatory (IL-1β, IL-6, and TNF-α) and anti-inflammatory (IL-10 and TGF-β) cytokines in the brain of mice with alcohol-induced depression. Furthermore, NR significantly upregulated BDNF and diminished the inhibition of the AKT/GSK3β/β-catenin signalling pathway in the hippocampus of these mice. 16S rRNA sequencing revealed that, compared with control and NR-treated mice, the gut microbiome richness and composition were significantly altered in the depressed mice. Spearman's correlation analysis showed that differential gut bacterial genera correlated with the levels of inflammation-related cytokines and BDNF in the brain. After faecal microbiota transplantation, cognitive behaviours, microglial activity, levels of cytokines and BDNF, and activation state of the AKT/GSK3β/β-catenin signalling pathway (which is downstream of the BDNF receptor, TrkB) in recipient mice were similar to those in donor mice. Collectively, our findings show that NR dietary supplementation protects against alcohol-induced depression-like behaviours, possibly by altering the composition of the gut microbiota.
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Affiliation(s)
- Yushan Jiang
- Department of Human Nutrition, College of Public Health, Qingdao University, Deng Zhou Road 38, Qingdao 266021, China.
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12
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Shen C, Cao K, Cui S, Cui Y, Mo H, Wen W, Dong Z, Lin H, Bai S, Yang L, Zhang R, Shi Y. SiNiSan ameliorates depression-like behavior in rats by enhancing synaptic plasticity via the CaSR-PKC-ERK signaling pathway. Biomed Pharmacother 2020; 124:109787. [DOI: 10.1016/j.biopha.2019.109787] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 11/25/2019] [Accepted: 11/29/2019] [Indexed: 12/18/2022] Open
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13
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Alshammari TK, Alghamdi H, Alkhader LF, Alqahtani Q, Alrasheed NM, Yacoub H, Alnaem N, AlNakiyah M, Alshammari MA. Analysis of the molecular and behavioral effects of acute social isolation on rats. Behav Brain Res 2020; 377:112191. [DOI: 10.1016/j.bbr.2019.112191] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 08/23/2019] [Accepted: 08/28/2019] [Indexed: 01/07/2023]
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14
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Lampe JF, Ruchti S, Burman O, Würbel H, Melotti L. Play like me: Similarity in playfulness promotes social play. PLoS One 2019; 14:e0224282. [PMID: 31648250 PMCID: PMC6812795 DOI: 10.1371/journal.pone.0224282] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 10/09/2019] [Indexed: 12/01/2022] Open
Abstract
Social play is associated with the experience of positive emotions in higher vertebrates and may be used as a measure of animal welfare. Altering motivation to play (e.g., through short-term social isolation) can temporarily affect play levels between familiar individuals, a process which may involve emotional contagion. This study investigated how forming groups based on known differences in the personality trait "playfulness" (i.e., the longer-term propensity of an individual to actively play from adolescence to early adulthood) affects social play. Seventy-six adolescent male Lister Hooded rats underwent a Play-in-Pairs test assessing their playfulness, ranked as high (H), intermediate (I) or low (L). At seven weeks of age, rats were resorted into homogenous groups of similar (LLL, III, HHH), or heterogeneous groups of dissimilar (HII, LII) playfulness. Social play was scored in the home cage at Weeks 8, 10, 12 of age. A second Play-in-Pairs test was performed (Week 11) to assess consistency of playfulness. A Social Preference test investigated whether I rats in heterogeneous groups preferred proximity with I, H or L cage mates. It was found that heterogeneous groups played less than homogeneous ones at adolescence (8 weeks of age), while play levels at early adulthood (Weeks 10 and 12) did not differ between groups. Play in the homogeneous groups decreased with age as expected, while it did not change over time in the heterogeneous groups, which did not compensate for the lower play levels shown at adolescence. Play-in-Pairs scores before and after resorting were mildly correlated, indicating some level of consistency over time despite the resorting procedure. In the Social Preference test, subjects did not prefer one playfulness level over another. We conclude that a mismatch in playfulness may negatively affect social play development, and thus the welfare, of rats. Groups made of animals with similar playfulness, even those initially scoring relatively low in this trait, seemed to be more successful in establishing play relationships during adolescence.
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Affiliation(s)
| | - Sabrina Ruchti
- Division of Animal Welfare, University of Bern, Bern, Switzerland
| | - Oliver Burman
- School of Life Sciences, University of Lincoln, Joseph Banks Laboratories, Lincoln, United Kingdom
| | - Hanno Würbel
- Division of Animal Welfare, University of Bern, Bern, Switzerland
| | - Luca Melotti
- Division of Animal Welfare, University of Bern, Bern, Switzerland
- Department of Behavioural Biology, University of Münster, Münster, Germany
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15
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Alshammari TK, Alghamdi H, Green TA, Niazy A, Alkahdar L, Alrasheed N, Alhosaini K, Alswayyed M, Elango R, Laezza F, Alshammari MA, Yacoub H. Assessing the role of toll-like receptor in isolated, standard and enriched housing conditions. PLoS One 2019; 14:e0222818. [PMID: 31647818 PMCID: PMC6812767 DOI: 10.1371/journal.pone.0222818] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Accepted: 09/06/2019] [Indexed: 12/27/2022] Open
Abstract
Depression is a common psychiatric disorder that has been poorly understood. Consequently, current antidepressant agents have clinical limitations. Until today, most have exhibited the slow onset of therapeutic action and, more importantly, their effect on remission has been minimal. Thus, the need to find new forms of therapeutic intervention is urgent. The inflammation hypothesis of depression is widely acknowledged and is one that theories the relationship between the function of the immune system and its contribution to the neurobiology of depression. In this research, we utilized an environmental isolation (EI) approach as a valid animal model of depression, employing biochemical, molecular, and behavioral studies. The aim was to investigate the anti-inflammatory effect of etanercept, a tumor necrosis factor-α inhibitor on a toll-like receptor 7 (TLR 7) signaling pathway in a depressive rat model, and compare these actions to fluoxetine, a standard antidepressant agent. The behavioral analysis indicates that depression-related symptoms are reduced after acute administration of fluoxetine and, to a lesser extent, etanercept, and are prevented by enriched environment (EE) housing conditions. Experimental studies were conducted by evaluating immobility time in the force swim test and pleasant feeling in the sucrose preference test. The mRNA expression of the TLR 7 pathway in the hippocampus showed that TLR 7, MYD88, and TRAF6 were elevated in isolated rats compared to the standard group, and that acute treatment with an antidepressant and anti-inflammatory drugs reversed these effects. This research indicates that stressful events have an impact on behavioral well-being, TLR7 gene expression, and the TLR7 pathway. We also found that peripheral administration of etanercept reduces depressive-like behaviour in isolated rats: this could be due to the indirect modulation of the TLR7 pathway and other TLRs in the brain. Furthermore, fluoxetine treatment reversed depressive-like behaviour and molecularly modulated the expression of TLR7, suggesting that fluoxetine exerts antidepressant effects partially by modulating the TLR7 signaling pathway.
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Affiliation(s)
- Tahani K. Alshammari
- Department of Pharmacology and Toxicology, Pharmacy College, King Saud University, Riyadh, Saudi Arabia
- * E-mail:
| | - Hajar Alghamdi
- Pharmacology & Toxicology Graduate Program, Pharmacy College, King Saud University, Riyadh, Saudi Arabia
| | - Thomas A. Green
- Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, TX, United States of America
| | - Abdurahman Niazy
- Prince Naïf Bin Abdul-Aziz Health Research Center, King Saud University, Riyadh, Saudi Arabia
| | - Lama Alkahdar
- Department of Pharmacology and Toxicology, Pharmacy College, King Saud University, Riyadh, Saudi Arabia
| | - Nouf Alrasheed
- Department of Pharmacology and Toxicology, Pharmacy College, King Saud University, Riyadh, Saudi Arabia
| | - Khalid Alhosaini
- Department of Pharmacology and Toxicology, Pharmacy College, King Saud University, Riyadh, Saudi Arabia
| | - Mohammed Alswayyed
- Department of Pathology and Laboratory Medicine, College of Medicine, King Saud University Medical City, King Saud University, Riyadh, Saudi Arabia
| | - Ramesh Elango
- Stem Cell Unit, Department of Anatomy, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Fernanda Laezza
- Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, TX, United States of America
| | - Musaad A. Alshammari
- Department of Pharmacology and Toxicology, Pharmacy College, King Saud University, Riyadh, Saudi Arabia
| | - Hazar Yacoub
- Department of Pharmacology and Toxicology, Pharmacy College, King Saud University, Riyadh, Saudi Arabia
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16
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Early life stress induces submissive behavior in adult rats. Behav Brain Res 2019; 372:112025. [DOI: 10.1016/j.bbr.2019.112025] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Revised: 04/18/2019] [Accepted: 06/08/2019] [Indexed: 12/16/2022]
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17
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Hao Y, Ge H, Sun M, Gao Y. Selecting an Appropriate Animal Model of Depression. Int J Mol Sci 2019; 20:ijms20194827. [PMID: 31569393 PMCID: PMC6801385 DOI: 10.3390/ijms20194827] [Citation(s) in RCA: 120] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Accepted: 09/26/2019] [Indexed: 12/14/2022] Open
Abstract
Depression has become one of the most severe psychiatric disorders and endangers the health of living beings all over the world. In order to explore the molecular mechanism that underlies depression, different kinds of animal models of depression are used in laboratory experiments. However, a credible and reasonable animal model that is capable of imitating the pathologic mechanism of depression in mankind has yet to be found, resulting in a barrier to further investigation of depression. Nevertheless, it is possible to explain the pathologic mechanism of depression to a great extent by a rational modeling method and behavioral testing. This review aims to provide a reference for researchers by comparing the advantages and disadvantages of some common animal depression models.
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Affiliation(s)
- Yuanzhen Hao
- Joint Program of Nanchang University and Queen Mary University of London, Nanchang 330006, China.
| | - Huixiang Ge
- Department of Physiology, The Basic Medical College of Nanchang University, Nanchang 330006, China.
| | - Mengyun Sun
- Department of Physiology, The Basic Medical College of Nanchang University, Nanchang 330006, China.
| | - Yun Gao
- Department of Physiology, The Basic Medical College of Nanchang University, Nanchang 330006, China.
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18
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Boyko M, Kutz R, Grinshpun J, Zvenigorodsky V, Gruenbaum BF, Gruenbaum SE, Frenkel A, Brotfain E, Israel Melamed, Frank D, Zeldetz V, Zlotnik A. The effect of depressive-like behavior and antidepressant therapy on social behavior and hierarchy in rats. Behav Brain Res 2019; 370:111953. [PMID: 31108115 PMCID: PMC6863054 DOI: 10.1016/j.bbr.2019.111953] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 05/15/2019] [Accepted: 05/16/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND Depression is common and results in a significant morbidity and economic burden. Depression is associated with pervasive impairments in social functioning, and antidepressant treatments are highly variable in improving these impairments. The objectives of this study were to test the effects of depression on social organization and behavior in a rodent model of depression, and to study the effectiveness of antidepressant medication in improving both symptoms of depression and the social function of depressed animals. METHODS One hundred-twenty male Sprague-Dawley rats were randomly and equally divided between the control group and depression group. After induction of depression by 5 weeks of chronic unpredictable stress, rats received either antidepressant treatment or placebo. In parallel with the initiation of drug therapy, 20 social groups of six rats were subjected to the complex diving-for-food situation to evaluate their social functioning. Four behavioral tests evaluated symptoms of depression and anxiety at 3 different time points. RESULTS We found that 1) depressed rats were significantly more active and aggressive in all parameters of social organization test compared with the control and antidepressant treatment groups, 2) depressed rats that received antidepressant treatment exhibited social behaviors like the control group, and 3) depression in the experimental groups was not accompanied by symptoms of anxiety. CONCLUSIONS These results suggest that depression can significantly alter the social behavior and hierarchy in the social group in rats. Investigations of complex social group dynamics offer novel opportunities for translational studies of mood and psychiatric disorders.
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Affiliation(s)
- Matthew Boyko
- Department of Anesthesiology and Critical Care, Soroka University Medical Center, Ben-Gurion of the Negev, Beer-Sheva, Israel.
| | - Ruslan Kutz
- Department of Anesthesiology and Critical Care, Soroka University Medical Center, Ben-Gurion of the Negev, Beer-Sheva, Israel
| | - Julia Grinshpun
- Department of Anesthesiology and Critical Care, Soroka University Medical Center, Ben-Gurion of the Negev, Beer-Sheva, Israel
| | - Vladislav Zvenigorodsky
- Department of Radiology, Soroka University Medical Center, Ben-Gurion of the Negev, Beer-Sheva, Israel
| | - Benjamin F Gruenbaum
- Department of Anesthesiology, Yale University School of Medicine, New Haven, CT, 06525, USA
| | - Shaun E Gruenbaum
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Jacksonville, FL, USA
| | - Amit Frenkel
- Department of Anesthesiology and Critical Care, Soroka University Medical Center, Ben-Gurion of the Negev, Beer-Sheva, Israel
| | - Evgeni Brotfain
- Department of Anesthesiology and Critical Care, Soroka University Medical Center, Ben-Gurion of the Negev, Beer-Sheva, Israel
| | - Israel Melamed
- Department of Neurosurgery, Soroka University Medical Center, Ben-Gurion of the Negev, Beer-Sheva, Israel
| | - Dmitry Frank
- Department of Anesthesiology and Critical Care, Soroka University Medical Center, Ben-Gurion of the Negev, Beer-Sheva, Israel
| | - Vladimir Zeldetz
- Department of Emergent Medicine, Soroka University Medical Center, Ben-Gurion of the Negev, Beer-Sheva, Israel
| | - Alexander Zlotnik
- Department of Anesthesiology and Critical Care, Soroka University Medical Center, Ben-Gurion of the Negev, Beer-Sheva, Israel
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19
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Frank D, Kuts R, Tsenter P, Gruenbaum BF, Grinshpun Y, Zvenigorodsky V, Shelef I, Natanel D, Brotfain E, Zlotnik A, Boyko M. The effect of pyruvate on the development and progression of post-stroke depression: A new therapeutic approach. Neuropharmacology 2019; 155:173-184. [PMID: 31153808 DOI: 10.1016/j.neuropharm.2019.05.035] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 05/26/2019] [Accepted: 05/30/2019] [Indexed: 12/27/2022]
Abstract
Post-stroke depression (PSD) is a common and serious complication following stroke. Both stroke and depression have independently been associated with pathologically elevated glutamate levels in the brain's extra-cerebral fluid (ECF). Here we evaluate an alternative therapeutic approach to PSD with pyruvate. Rats were randomly assigned into one of 3 groups: Middle Cerebral Artery Occlusion (MCAO) plus pyruvate treatment, MCAO plus placebo treatment, and sham operated rats. Post-MCAO depressive and anxiety-like behavior was assessed, along with neurological status, brain infarct zone, brain edema, blood brain barrier (BBB) breakdown, cerebrospinal fluid and blood glutamate levels. Anxiety-like behavior and levels of blood alanine and α-ketoglutarate were measured in naïve rats treated with pyruvate, as a control. Post-stroke neurological deficit with concurrent elevation in glutamate levels were demonstrated, with peak glutamate levels 24 h after MCAO. Treatment with pyruvate led to reduced glutamate levels 24 h after MCAO and improved neurologic recovery. Pyruvate treatment reduced lesion volume, brain edema and the extent of BBB permeability 24 h post-MCAO. Naïve rats treated with pyruvate showed increased levels of α-ketoglutarate. Rats demonstrated post-stroke depressive behavior that was improved by the administration of pyruvate. There was less anxiety-like behavior in post-stroke rats treated with placebo in comparison to the post-stroke rats treated with pyruvate or sham operated rats. Glutamate scavenging with pyruvate appears to be an effective as a method in providing neuroprotection following stroke and as a therapeutic option for the treatment of PSD by reducing the consequent elevations in CNS glutamate levels.
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Affiliation(s)
- Dmitry Frank
- Department of Anesthesiology and Critical Care, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Ruslan Kuts
- Department of Anesthesiology and Critical Care, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Philip Tsenter
- Division of Internal Medicine, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Benjamin F Gruenbaum
- Department of Anesthesiology, Yale University School of Medicine, New Haven, CT, USA
| | - Yulia Grinshpun
- Department of Anesthesiology and Critical Care, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Vladislav Zvenigorodsky
- Department of Radiology, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Ilan Shelef
- Department of Radiology, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Dmitry Natanel
- Department of Anesthesiology and Critical Care, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Evgeny Brotfain
- Department of Anesthesiology and Critical Care, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Alexander Zlotnik
- Department of Anesthesiology and Critical Care, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Matthew Boyko
- Department of Anesthesiology and Critical Care, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
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Antidepressant and Neuroprotective Effects of Naringenin via Sonic Hedgehog-GLI1 Cell Signaling Pathway in a Rat Model of Chronic Unpredictable Mild Stress. Neuromolecular Med 2019; 21:250-261. [DOI: 10.1007/s12017-019-08538-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 04/23/2019] [Indexed: 01/04/2023]
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21
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Rabelo-da-Ponte FD, Pessoa Gomes JM, Torres NL, Barbosa JIC, de Andrade GM, Macedo D, Ceppi B. Behavioral, affective, and cognitive alterations induced by individual and combined environmental stressors in rats. BRAZILIAN JOURNAL OF PSYCHIATRY 2019; 41:289-296. [PMID: 30892378 PMCID: PMC6804305 DOI: 10.1590/1516-4446-2018-0009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Accepted: 08/01/2018] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To evaluate whether exposing rats to individual or combined environmental stressors triggers endophenotypes related to mood and anxiety disorders, and whether this effect depends on the nature of the behavior (i.e., innate or learned). METHODS We conducted a three-phase experimental protocol. In phase I (baseline), animals subjected to mixed schedule of reinforcement were trained to press a lever with a fixed interval of 1 minute and a limited hold of 3 seconds. On the last day of phase I, an open-field test was performed and the animals were divided into four experimental groups (n=8/group). In phase II (repeated stress), each group was exposed to either hot air blast (HAB), paradoxical sleep deprivation (PSD) or both (HAB+PSD group) on alternate days over a 10-day period. Control group animals were not exposed to stressors. In phase III (post-stress evaluation), behavior was analyzed on the first (short-term effects), third (mid-term effects), and fifth (long-term effects) days after repeated stress. RESULTS The PSD group presented operant hyperactivity, the HAB group presented spontaneous hypoactivity and anxiety, and the HAB+PSD group presented spontaneous hyperactivity, operant hypoactivity, impulsivity, loss of interest, and cognitive impairment. CONCLUSION A combination of environmental stressors (HAB and PSD) may induce endophenotypes related to bipolar disorder.
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Affiliation(s)
| | | | - Nathércia Lima Torres
- Departamento de Psicologia, Universidade Federal do Ceará (UFC), Fortaleza, CE, Brazil
| | | | - Geanne Matos de Andrade
- Laboratório de Neurociências e Comportamento, Departamento de Fisiologia e Farmacologia, UFC, Fortaleza, CE, Brazil
| | - Danielle Macedo
- Laboratório de Neurofarmacologia, Departamento de Fisiologia e Farmacologia, Núcleo de Pesquisa e Desenvolvimento de Medicamentos, UFC, Fortaleza, CE, Brazil.,Instituto Nacional de Ciência e Tecnologia Translacional em Medicina (INCT-TM), Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Ribeirão Preto, SP, Brazil
| | - Bruno Ceppi
- Laboratório de Neurociências e Comportamento, Departamento de Fisiologia e Farmacologia, UFC, Fortaleza, CE, Brazil
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Di Miceli M, Omoloye A, Gronier B. Chronic methylphenidate treatment during adolescence has long-term effects on monoaminergic function. J Psychopharmacol 2019; 33:109-121. [PMID: 30334678 DOI: 10.1177/0269881118805494] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND Psychostimulants like methylphenidate or D-amphetamine are often prescribed for attention deficit and hyperactivity disorders in children. Whether such drugs can be administered into a developing brain without consequences in adulthood is still an open question. METHODS Here, using in vivo extracellular electrophysiology in anesthetised preparations, combined with behavioural assays, we have examined the long-term consequences in adulthood of a chronic methylphenidate oral administration (5 mg/kg/day, 15 days) in early adolescent (post-natal day 28) and late adolescent (post-natal day 42) rats, by evaluating body weight change, sucrose preference (indicator of anhedonia), locomotor sensitivity to D-amphetamine and electrical activities of ventral tegmental area dopamine and dorsal raphe nucleus serotonin neurons. RESULTS Chronic methylphenidate treatment during early or late adolescence did not induce weight deficiencies and anhedonia-like behaviours at adulthood. However, it increased bursting activities of dorsal raphe nucleus serotonin neurons. Furthermore, chronic methylphenidate treatment during early but not during late adolescence enhanced D-amphetamine-induced rearing activity, as well as ventral tegmental area dopamine cell excitability (firing, burst and population activity), associated with a partial desensitisation of dopamine D2 auto-receptors. CONCLUSIONS We have demonstrated here that early, but not late, adolescent exposure to oral methylphenidate may induce long-lasting effects on monoamine neurotransmission. The possible clinical implication of these data will be discussed.
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Affiliation(s)
- Mathieu Di Miceli
- Pharmacology and Neuroscience Research Group, Leicester School of Pharmacy, De Montfort University, Leicester, UK
| | - Adesina Omoloye
- Pharmacology and Neuroscience Research Group, Leicester School of Pharmacy, De Montfort University, Leicester, UK
| | - Benjamin Gronier
- Pharmacology and Neuroscience Research Group, Leicester School of Pharmacy, De Montfort University, Leicester, UK
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Abstract
BACKGROUND Post-stroke depression (PSD) is the most frequent psychiatric complication following ischemic stroke. It affects up to 60% of all patients and is associated with increased morbidity and mortality following ischemic stroke. The pathophysiology of PSD remains elusive and appears to be multifactorial, rather than "purely" biological or psychosocial in origin. Thus, valid animal models of PSD would contribute to the study of the etiology (and treatment) of this disorder. METHODS The present study depicts a rat model for PSD, using middle cerebral artery occlusion (MCAO). The two-way shuttle avoidance task, Porsolt forced-swim test, and sucrose preference test were employed to assess any depression-like behavior. Localized brain expressions of brain-derived neurotrophic factor (BDNF) protein levels were evaluated to examine the possible involvement of the brain neuronal plasticity in the observed behavioral syndrome. The raw data were subjected to unsupervised fuzzy clustering (UFC) algorithms to assess the sensitivity of bio-behavioral measures indicative of depressive symptoms post MCAO. RESULTS About 56% of the rats developed significant depressive-like behavioral disruptions as a result of MCAO compared with 4% in the sham-operated control rats. A pattern of a depressive-like behavioral response was common to all affected MCAO animals, characterized by significantly more escape failures and reduced number of total avoidance shuttles, a significant elevation in immobility duration, and reduced sucrose preference. Significant downregulations of BDNF protein levels in the hippocampal sub-regions, frontal cortex, and hypothalamus were observed in all affected MCAO animals. CONCLUSION The UFC analysis supports the behavioral analysis and thus, lends validity to our results.
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Neuroprotective evidence of alpha-lipoic acid and desvenlafaxine on memory deficit in a neuroendocrine model of depression. Naunyn Schmiedebergs Arch Pharmacol 2018; 391:803-817. [DOI: 10.1007/s00210-018-1509-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Accepted: 04/25/2018] [Indexed: 12/15/2022]
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Zeldetz V, Natanel D, Boyko M, Zlotnik A, Shiyntum HN, Grinshpun J, Frank D, Kuts R, Brotfain E, Peiser J. A New Method for Inducing a Depression-Like Behavior in Rats. J Vis Exp 2018. [PMID: 29553503 DOI: 10.3791/57137] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Contagious depression is a phenomenon that is yet to be fully recognized and this stems from insufficient material on the subject. At the moment, there is no existing format for studying the mechanism of action, prevention, containment, and treatment of contagious depression. The purpose of this study, therefore, was to establish the first animal model of contagious depression. Healthy rats can contract depressive behaviors if exposed to depressed rats. Depression is induced in rats by subjecting them to several manipulations of chronic unpredictable stress (CUS) over 5 weeks, as described in the protocol. A successful sucrose preference test confirmed the development of depression in the rats. The CUS-exposed rats were then caged with naïve rats from the contagion group (1 naïve rat/2 depressed rats in a cage) for an additional 5 weeks. 30 social groups were created from the combination of CUS-exposed rats and naïve rats. This proposed depression-contagion protocol in animals consists mainly of cohabiting CUS-exposed and healthy rats for 5 weeks. To ensure that this method works, a series of tests are carried out - first, the sucrose preference test upon inducing depression to rats, then, the sucrose preference test, alongside the open field and forced-swim tests at the end of the cohabitation period. Throughout the experiment, rats are given tags and are always returned to their cages after each test. A few limitations to this method are the weak differences recorded between the experimental and control groups in the sucrose preference test and the irreversible traumatic outcome of the forced swim test. These may be worth considering for suitability before any future application of the protocol. Nonetheless, following the experiment, naïve rats developed contagion depression after 5 weeks of sharing the same cage with the CUS-exposed rats.
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Affiliation(s)
- Vladimir Zeldetz
- Department of Emergent Medicine, Soroka University Medical Center, Ben-Gurion University of the Negev
| | - Dmitry Natanel
- Division of Anesthesiology and Critical Care, Soroka Medical Center, Ben-Gurion University of the Negev
| | - Matthew Boyko
- Division of Anesthesiology and Critical Care, Soroka Medical Center, Ben-Gurion University of the Negev;
| | - Alexander Zlotnik
- Division of Anesthesiology and Critical Care, Soroka Medical Center, Ben-Gurion University of the Negev
| | - Honore N Shiyntum
- Department of Biophysics and Biochemistry, Oles' Honchar Dnipro National University
| | - Julia Grinshpun
- Division of Anesthesiology and Critical Care, Soroka Medical Center, Ben-Gurion University of the Negev
| | - Dmitry Frank
- Division of Anesthesiology and Critical Care, Soroka Medical Center, Ben-Gurion University of the Negev
| | - Ruslan Kuts
- Division of Anesthesiology and Critical Care, Soroka Medical Center, Ben-Gurion University of the Negev
| | - Evgeni Brotfain
- Division of Anesthesiology and Critical Care, Soroka Medical Center, Ben-Gurion University of the Negev
| | - Jochanan Peiser
- Division of Anesthesiology and Critical Care, Soroka Medical Center, Ben-Gurion University of the Negev
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26
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Galvão-Coelho NL, Galvão ACDM, da Silva FS, de Sousa MBC. Common Marmosets: A Potential Translational Animal Model of Juvenile Depression. Front Psychiatry 2017; 8:175. [PMID: 28983260 PMCID: PMC5613153 DOI: 10.3389/fpsyt.2017.00175] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 09/05/2017] [Indexed: 12/04/2022] Open
Abstract
Major depression is a psychiatric disorder with high prevalence in the general population, with increasing expression in adolescence, about 14% in young people. Frequently, it presents as a chronic condition, showing no remission even after several pharmacological treatments and persisting in adult life. Therefore, distinct protocols and animal models have been developed to increase the understanding of this disease or search for new therapies. To this end, this study investigated the effects of chronic social isolation and the potential antidepressant action of nortriptyline in juvenile Callithrix jacchus males and females by monitoring fecal cortisol, body weight, and behavioral parameters and searching for biomarkers and a protocol for inducing depression. The purpose was to validate this species and protocol as a translational model of juvenile depression, addressing all domain criteria of validation: etiologic, face, functional, predictive, inter-relational, evolutionary, and population. In both sexes and both protocols (IDS and DPT), we observed a significant reduction in cortisol levels in the last phase of social isolation, concomitant with increases in autogrooming, stereotyped and anxiety behaviors, and the presence of anhedonia. The alterations induced by chronic social isolation are characteristic of the depressive state in non-human primates and/or in humans, and were reversed in large part by treatment with an antidepressant drug (nortriptyline). Therefore, these results indicate C. jacchus as a potential translational model of juvenile depression by addressing all criteria of validation.
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Affiliation(s)
- Nicole Leite Galvão-Coelho
- Laboratory of Hormone Measurement, Department of Physiology, Federal University of Rio Grande do Norte, Natal, Brazil
- Postgraduate Program in Psychobiology, Federal University of Rio Grande do Norte, Natal, Brazil
- National Institute of Science and Technology in Translational Medicine Natal, Natal, Brazil
| | - Ana Cecília de Menezes Galvão
- Laboratory of Hormone Measurement, Department of Physiology, Federal University of Rio Grande do Norte, Natal, Brazil
- Postgraduate Program in Psychobiology, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Flávia Santos da Silva
- Laboratory of Hormone Measurement, Department of Physiology, Federal University of Rio Grande do Norte, Natal, Brazil
- Postgraduate Program in Psychobiology, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Maria Bernardete Cordeiro de Sousa
- Laboratory of Hormone Measurement, Department of Physiology, Federal University of Rio Grande do Norte, Natal, Brazil
- Postgraduate Program in Psychobiology, Federal University of Rio Grande do Norte, Natal, Brazil
- Brain Institute, Federal University of Rio Grande do Norte, Natal, Brazil
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Carnevali L, Montano N, Statello R, Coudé G, Vacondio F, Rivara S, Ferrari PF, Sgoifo A. Social stress contagion in rats: Behavioural, autonomic and neuroendocrine correlates. Psychoneuroendocrinology 2017; 82:155-163. [PMID: 28550792 DOI: 10.1016/j.psyneuen.2017.05.017] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 05/15/2017] [Accepted: 05/16/2017] [Indexed: 12/30/2022]
Abstract
The negative emotional consequences associated with life stress exposure in an individual can affect the emotional state of social partners. In this study, we describe an experimental rat model of social stress contagion and its effects on social behaviour and cardiac autonomic and neuroendocrine functions. Adult male Wistar rats were pair-housed and one animal (designated as "demonstrator" (DEM)) was submitted to either social defeat stress (STR) by an aggressive male Wild-type rat in a separate room or just exposed to an unfamiliar empty cage (control condition, CTR), once a day for 4 consecutive days. We evaluated the influence of cohabitation with a STR DEM on behavioural, cardiac autonomic and neuroendocrine outcomes in the cagemate (defined "observer" (OBS)). After repeated social stress, STR DEM rats showed clear signs of social avoidance when tested in a new social context compared to CTR DEM rats. Interestingly, also their cagemate STR OBSs showed higher levels of social avoidance compared to CTR OBSs. Moreover, STR OBS rats exhibited a higher heart rate and a larger shift of cardiac autonomic balance toward sympathetic prevalence (as indexed by heart rate variability analysis) immediately after the first reunification with their STR DEMs, compared to the control condition. This heightened cardiac autonomic responsiveness habituated over time. Finally, STR OBSs showed elevated plasma corticosterone levels at the end of the experimental protocol compared to CTR OBSs. These findings demonstrate that cohabitation with a DEM rat, which has experienced repeated social defeat stress, substantially disrupts social behaviour and induces short-lasting cardiac autonomic activation and hypothalamic-pituitary-adrenal axis hyperactivity in the OBS rat, thus suggesting emotional state-matching between the OBS and the DEM rats. We conclude that this rodent model may be further exploited for investigating the neurobiological bases of negative affective sharing between social partners under chronic social stress conditions.
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Affiliation(s)
- Luca Carnevali
- Department of Chemistry, Life Sciences and Environmental Sustainability, Stress Physiology Lab, University of Parma, Italy
| | - Nicola Montano
- Department of Internal Medicine, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, University of Milan, Italy
| | - Rosario Statello
- Department of Chemistry, Life Sciences and Environmental Sustainability, Stress Physiology Lab, University of Parma, Italy
| | - Gino Coudé
- Institut des Sciences Cognitives Marc Jeannerod UMR 5229, CNRS-Université de Lyon, Bron Cedex, France
| | | | - Silvia Rivara
- Department of Food and Drug, University of Parma, Italy
| | - Pier Francesco Ferrari
- Institut des Sciences Cognitives Marc Jeannerod UMR 5229, CNRS-Université de Lyon, Bron Cedex, France
| | - Andrea Sgoifo
- Department of Chemistry, Life Sciences and Environmental Sustainability, Stress Physiology Lab, University of Parma, Italy.
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28
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Cheng F, Ma C, Wang X, Zhai C, Wang G, Xu X, Mu J, Li C, Wang Z, Zhang X, Yue W, Du X, Lian Y, Zhu W, Yin X, Wei Z, Song W, Wang Q. Effect of traditional Chinese medicine formula Sinisan on chronic restraint stress-induced nonalcoholic fatty liver disease: a rat study. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2017; 17:203. [PMID: 28388904 PMCID: PMC5383977 DOI: 10.1186/s12906-017-1707-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 03/24/2017] [Indexed: 02/08/2023]
Abstract
Background Nonalcoholic fatty liver disease (NAFLD) represents one of the most common forms of liver disease worldwide, and it is always regarded as a consequence of a sedentary, food-abundant lifestyle, sitting for an extended time, and a low physical activity level, which often coincide with chronic and long-lasting psychological stress. A Chinese medicine Sinisan (SNS) may be a potential formula for treating this kind of disease. Methods In this study, a long-term chronic restraint stress protocol was used to investigate the mechanism underlying stress-induced NALFD. To investigate the effect of SNS treatment on stress-induced NAFLD, we measured the liver and serum values of total cholesterol (TC), triglyceride (TG), liver free fatty acids (FFA), low-density lipoprotein, superoxide dismutase, tumor necrosis factor-α, malondialdehyde, interleukin (IL)-6, and serum values of aspartate aminotransferase (AST), alanine aminotransferase (ALT), and alkaline phosphatase. Results are shown as a mean ± standard deviation. Significant differences between the groups were evaluated using the Student t-test. For multiple comparisons, one-way analysis of variance (ANOVA) was used. If the results of ANOVA indicated significant differences, post hoc analysis was performed with the Tukey test or Dunnett test, and p < 0.05 was considered statistically significant. Results Long-term chronic stress led to steatosis and non-alcoholic steatohepatitis. Additionally, SNS treatment significantly increased body weight gain (p < 0.01) and sucrose preference (p < 0.001), and it reduced the liver values of TC, TG, and FFA (p < 0.05). SNS also reduced the serum values of AST and ALT (p < 0.001), and the liver value of IL-6 (p < 0.01). Conclusions This study’s results demonstrate that psychological stress may be a significant risk factor of NAFLD. Furthermore, the traditional Chinese medicine formula SNS may have some beneficial effect in antagonizing psychological stress and stress-related NAFLD.
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Xu C, Ma XM, Chen HB, Zhou MH, Qiao H, An SC. Orbitofrontal cortex 5-HT2A receptor mediates chronic stress-induced depressive-like behaviors and alterations of spine density and Kalirin7. Neuropharmacology 2016; 109:7-17. [PMID: 26921771 DOI: 10.1016/j.neuropharm.2016.02.020] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Revised: 02/08/2016] [Accepted: 02/15/2016] [Indexed: 12/22/2022]
Abstract
Neuroimaging studies show that patients with major depression have reduced volume of the orbitofrontal cortex (OFC). Although the serotonin (5-HT) 2A receptor, which is abundant in the OFC, has been implicated in depression, the underlying mechanisms in the development of stress-induced depression remain unclear. Kalirin-7 (Kal7) is an essential component of mature excitatory synapses for maintaining dendritic spines density, size and synaptic functions. The aim of this study was to investigate the role of orbitofrontal 5-HT and 5-HT2A receptors in depressive-like behaviors and their associations with Kal7 and dendritic spines using chronic unpredictable mild stress (CUMS), an established animal model of depression. CUMS had no effect on the levels of 5-HT or the 5-HT2A receptor in the OFC. However, CUMS or microinjection of the 5-HT2A/2C receptor agonist (±)-1-(2, 5-Dimethoxy-4-iodophenyl)- 2-aminopropane hydrochloride (DOI, 5 μg/0.5 μL) into the OFC induced depressive-like behaviors, including anhedonia in the sucrose preference test and behavioral despair in the tail suspension test, a significant reduction in body weight gain and locomotor activity in the open field test, which were accompanied by decreased expression of Kal7 and PSD95 as well as decreased density of dendritic spines in the OFC. These alterations induced by CUMS were reversed by pretreatment with the 5-HT2A receptor antagonist Ketanserin (Ket, 5 μg/0.5 μL into the OFC). These results suggest that CUMS alters structural plasticity through activation of the orbital 5-HT2A receptor and is associated with decreased expression of Kal7, thereby resulting in depressive-like behaviors in rats, suggesting an important role of Kal7 in the OFC in depression.
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Affiliation(s)
- Chang Xu
- College of Life Science, Shaanxi Normal University, Xi'an, Shaanxi 710119, China
| | - Xin-Ming Ma
- College of Life Science, Shaanxi Normal University, Xi'an, Shaanxi 710119, China; University of Connecticut Health Center, Department of Neuroscience, Farmington, CT 06030, USA
| | - Hui-Bin Chen
- College of Life Science, Shaanxi Normal University, Xi'an, Shaanxi 710119, China
| | - Meng-He Zhou
- College of Life Science, Shaanxi Normal University, Xi'an, Shaanxi 710119, China
| | - Hui Qiao
- College of Life Science, Shaanxi Normal University, Xi'an, Shaanxi 710119, China
| | - Shu-Cheng An
- College of Life Science, Shaanxi Normal University, Xi'an, Shaanxi 710119, China.
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Kanzaki A, Okauchi T, Hu D, Shingaki T, Katayama Y, Koyama H, Watanabe Y, Cui Y. Extension of recovery time from fatigue by repeated rest with short-term sleep during continuous fatigue load: Development of chronic fatigue model. J Neurosci Res 2016; 94:424-9. [DOI: 10.1002/jnr.23718] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Revised: 01/08/2016] [Accepted: 01/11/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Akinori Kanzaki
- Division of Biofunction Dynamics Imaging; RIKEN Center for Life Science Technologies; Chuo-ku Kobe Japan
- Division of Endocrinology and Metabolism; Department of Internal Medicine, Hyogo College of Medicine; Nishinomiya Hyogo Japan
| | - Takashi Okauchi
- Division of Biofunction Dynamics Imaging; RIKEN Center for Life Science Technologies; Chuo-ku Kobe Japan
| | - Di Hu
- Division of Biofunction Dynamics Imaging; RIKEN Center for Life Science Technologies; Chuo-ku Kobe Japan
| | - Tomotaka Shingaki
- Division of Biofunction Dynamics Imaging; RIKEN Center for Life Science Technologies; Chuo-ku Kobe Japan
| | - Yumiko Katayama
- Division of Biofunction Dynamics Imaging; RIKEN Center for Life Science Technologies; Chuo-ku Kobe Japan
| | - Hidenori Koyama
- Division of Endocrinology and Metabolism; Department of Internal Medicine, Hyogo College of Medicine; Nishinomiya Hyogo Japan
| | - Yasuyoshi Watanabe
- Division of Biofunction Dynamics Imaging; RIKEN Center for Life Science Technologies; Chuo-ku Kobe Japan
| | - Yilong Cui
- Division of Biofunction Dynamics Imaging; RIKEN Center for Life Science Technologies; Chuo-ku Kobe Japan
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Electroacupuncture regulate hypothalamic–pituitary–adrenal axis and enhance hippocampal serotonin system in a rat model of depression. Neurosci Lett 2016; 615:66-71. [DOI: 10.1016/j.neulet.2016.01.004] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Revised: 12/26/2015] [Accepted: 01/05/2016] [Indexed: 02/01/2023]
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