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Shu Y, Tian L, Wang X, Meng T, Yu S, Li Y. Decoding serotonin: the molecular symphony behind depression. Front Cell Neurosci 2025; 19:1572462. [PMID: 40342516 PMCID: PMC12058683 DOI: 10.3389/fncel.2025.1572462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2025] [Accepted: 04/03/2025] [Indexed: 05/11/2025] Open
Abstract
The serotonin (5-hydroxytryptamine) system represents a crucial neurotransmitter network that regulates mood, behavior, and cognitive functions, playing a significant role in the pathogenesis and progression of depression. Although this perspective faces significant challenges, the serotonin system continues to exert substantial modulatory effects on specific aspects of psychological functioning and actively contributes to multiple pathological processes in depression development. Therefore, this review systematically integrates interdisciplinary research advances regarding the relationship between the 5-hydroxytryptamine (5-HT) system and depression. By focusing on core biological processes including serotonin biosynthesis and metabolism, SERT gene regulatory networks, and protein molecular modifications, it aims to elucidate how 5-HT system dysregulation contributes to the development of depression, while providing novel research perspectives and therapeutic targets for innovative antidepressant drug development.
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Affiliation(s)
- Yue Shu
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, China
| | - Lei Tian
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, China
| | - Xing Wang
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, China
| | - Tinyang Meng
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, China
| | - Shouyang Yu
- Key Laboratory of Brain Science, Key Laboratory of Anesthesia and Organ Protection of Ministry of Education (In Cultivation), Zunyi Medical University, Zunyi, China
| | - Yulan Li
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, China
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2
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Jie S, Fu A, Wang C, Rajabi S. A comprehensive review on the impact of polyphenol supplementation and exercise on depression and brain function parameters. BEHAVIORAL AND BRAIN FUNCTIONS : BBF 2025; 21:10. [PMID: 40140839 PMCID: PMC11948876 DOI: 10.1186/s12993-025-00273-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2024] [Accepted: 03/14/2025] [Indexed: 03/28/2025]
Abstract
The objective of this review study is to examine the combined antidepressant effects of exercise and polyphenol supplementation, with a focus on specific polyphenolic compounds such as crocin, curcumin, and quercetin, as well as different forms of physical exercise, including aerobic and resistance training. The research examines how these interventions influence depressive-like behaviors, cognitive function, and neurochemical markers in animal models and human participants. The findings demonstrate that both exercise and polyphenols independently contribute to mood enhancement, reduced anxiety, and improved cognitive function through mechanisms such as neurogenesis, neurotransmitter modulation, and anti-inflammatory effects. Notably, the combined interventions showed a synergistic effect, providing more significant benefits in reducing symptoms of depression and anxiety, enhancing cognitive performance, and supporting overall mental well-being. These results suggest that integrating exercise and polyphenol supplementation could be a promising non-pharmacological approach to managing depression and related disorders.
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Affiliation(s)
- Shihong Jie
- Institute of Physical Education, Woosuk University, Jeollabuk-do, 55338, Korea
| | - Aili Fu
- Physical Education and Research Section, Basic Teaching Department, Guangdong Maoming Health Vocational College, Maoming, Guangdong, 525400, China
| | - Chuan Wang
- Physical Education Teaching and Research Office, Dalian University of Foreign Languages, Dalian, Liaoning, 116044, China.
| | - Sogand Rajabi
- Department of Cellular and Molecular Biology, Islamic Azad University, Sirjan Branch, Iran.
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3
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Zhao G, Cheng Y, Li G, Li L, Li F, Wu Y, Du C, Yan J, Cong G, Zhao Q, Wang M, Feng K, Yin S. Unveiling the Dominant Factors in Subthalamic Stimulation for Improving Depression in Parkinson's Disease. Mov Disord Clin Pract 2024; 11:1478-1488. [PMID: 39262097 DOI: 10.1002/mdc3.14195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 06/07/2024] [Accepted: 08/05/2024] [Indexed: 09/13/2024] Open
Abstract
BACKGROUND Currently, the conclusions of studies on subthalamic nucleus (STN) deep brain stimulation (DBS) for improving Parkinson's disease (PD) with depression are inconsistent, and the reasons for improvement or deterioration remain unclear. METHODS The aim was to investigate the prognosis of PD with depression after bilateral STN-DBS and the factors related to the improvement in depression. The local and network effects of DBS on depression in PD (DPD) were further explored based on the volume of tissue activation (VTA). The study analyzed 80 primary PD patients who had undergone bilateral STN-DBS, comprising 47 patients with improved depression and 33 patients without improvement. Two groups of clinical profiles and stimulation parameters were compared, and the network models for improving depression were constructed. RESULTS The improvement in depression was closely associated with improvement in anxiety (odd rate [OR] = 1.067, P = 0.006) and the standardized space left y-coordinate (OR = 0.253, P = 0.005). The VTA overlapping with the left motor STN subregion is most significantly associated with improvement in depression (RSpearman = 0.53, P < 0.001; RPearson = 0.43, P < 0.001). The y-coordinates in the improvement group were closer to the optimal stimulation site for improving motor symptoms. Finally, both the structural and functional network models indicate a positive correlation between depression improvement and the connectivity of the sensorimotor cortex. CONCLUSION The amelioration of DPD is primarily attributed to the stimulation of bilateral motor STN, particularly on the left. However, this stimulatory effect manifests as an indirect influence.
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Affiliation(s)
- Guangrui Zhao
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, China
- Department of Neurosurgery, Lu'an Hospital Affiliated to Anhui Medical University, Lu'an, China
| | - Yifeng Cheng
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, China
- Department of Neurosurgery, Huanhu Hospital, Tianjin University, Tianjin, China
| | - Guangfeng Li
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, China
- Department of Neurosurgery, Huanhu Hospital, Tianjin University, Tianjin, China
| | - Lanxin Li
- Department of Neurology, Huanhu Hospital, Tianjin University, Tianjin, China
| | - Feng Li
- Department of Neurology, Drum Tower Clinical College, Nanjing University of Traditional Chinese Medicine, Nanjing, China
| | - Yuzhang Wu
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, China
| | - Chuan Du
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, China
| | - Jingtao Yan
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, China
| | - Guangyan Cong
- Department of Neurology, Lu'an Hospital Affiliated to Anhui Medical University, Lu'an, China
| | - Qiyuan Zhao
- Department of Neurology, Lu'an Hospital Affiliated to Anhui Medical University, Lu'an, China
| | - Min Wang
- Department of Neurosurgery, Huanhu Hospital, Tianjin University, Tianjin, China
| | - Keke Feng
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, China
- Department of Neurosurgery, Huanhu Hospital, Tianjin University, Tianjin, China
| | - Shaoya Yin
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, China
- Department of Neurosurgery, Huanhu Hospital, Tianjin University, Tianjin, China
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4
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Ding L, Wu Z, Wu Q, Wei R, Li E. Prevalence and lifestyle determinants of depressive symptoms among Chinese children and adolescents. Sci Rep 2024; 14:27313. [PMID: 39516529 PMCID: PMC11607356 DOI: 10.1038/s41598-024-78436-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Accepted: 10/30/2024] [Indexed: 11/16/2024] Open
Abstract
Based on Chinese Students' Fitness Health Examination, this study sought to investigate the relationships between depressive symptoms and family environment, physical activity, dietary habits, sleep and sedentary behavior among children and adolescents. A cross-sectional study was carried out to estimate the prevalence of depressive symptoms in 32,389 participants (grades 4-12) using the CES-D. Logistic regression was used to evaluate the relationships between lifestyle determinants and depressive symptoms, and a random forest model was used to rank the importance of those determinants. The overall prevalence of depressive symptoms was 39.93%. Students with depressive symptoms had higher grades, lower parental educational levels and unhealthy lifestyles (P < 0.05). The top ten most important determinants of depressive symptoms were grade, egg intake, milk/soy product intake, frequency of muscle strength training, screen time, sleep duration, parental educational level, sugar beverage intake and total physical activity. Socioeconomic status, physical activity, sleep and screen time, and diet habits are determinants of depressive symptoms, and surveillance of lifestyles may be an effective way to detect students with depressive symptoms early.
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Affiliation(s)
- Lijie Ding
- Department of Health Management Center, Shandong Sport University, Jinan, 250012, China.
| | - Zhiwei Wu
- Institute of Religions, Shandong Academy of Social Sciences, Jinan, 250002, China
| | - Qingjian Wu
- Center for Students' Fitness Promotion, Shandong Sport University, Jinan, 250012, China
| | - Ran Wei
- Department of Health Management Center, Shandong Sport University, Jinan, 250012, China
| | - Enqi Li
- Center for Students' Fitness Promotion, Shandong Sport University, Jinan, 250012, China.
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5
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Alizadeh Pahlavani H. Possible role of exercise therapy on depression: Effector neurotransmitters as key players. Behav Brain Res 2024; 459:114791. [PMID: 38048912 DOI: 10.1016/j.bbr.2023.114791] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 11/23/2023] [Accepted: 11/29/2023] [Indexed: 12/06/2023]
Abstract
About 280 million people suffer from depression as the most common neurological disorder and the most common cause of death worldwide. Exercise with serotonin released in the brain by the 5-HT3-IGF-1 mechanism can lead to antidepressant effects. Swimming exercise has antidepressant effects by increasing the sensitivity of serotonin 5-HT2 receptors and postsynaptic 5-HT1A receptors, increasing 5-HT and 5HIAA levels, increasing TPH and serotonin, and decreasing inflammatory levels of IFN-γ and TNF-α. Anaerobic and aerobic exercises increase beta-endorphin, enkephalin, and dynorphin and have antidepressant effects. Exercise by increasing dopamine, D1R, and D2R leads to the expression of BDNF and activation of TrkB and has antidepressant behavior. Exercise leads to a significant increase in GABAAR (γ2 and α2 subunits) and reduces neurodegenerative disorders caused by GABA imbalance through anti-inflammatory pathways. By increasing glutamate and PGC1α and reducing glutamatergic neurotoxicity, exercise enhances neurogenesis and synaptogenesis and prevents neurodegeneration and the onset of depression. Irisin release during exercise shows an important role in depression by increasing dopamine, BDNF, NGF, and IGF-1 and decreasing inflammatory mediators such as IL-6 and IL-1β. In addition, exercise-induced orexin and NPY can increase hippocampal neurogenesis and relieve depression. After exercise, the tryptophan to large neutral amino acids (TRP/LNAA) ratio and the tryptophan to branched-chain amino acids (BCAA) ratio increase, which may have antidepressant effects. The expression of M5 receptor and nAChR α7 increases after exercise and significantly increases dopamine and acetylcholine and ameliorates depression. It appears that during exercise, muscarinic receptors can reduce depression through dopamine in the absence of acetylcholine. Therefore, exercise can be used to reduce depression by affecting neurotransmitters, neuromodulators, cytokines, and/or neurotrophins.
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6
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Ercan Z, Bulmus O, Kacar E, Serhatlioglu I, Zorlu G, Kelestimur H. Treadmill Exercise Improves Behavioral and Neurobiological Alterations in Restraint-Stressed Rats. J Mol Neurosci 2023; 73:831-842. [PMID: 37794307 DOI: 10.1007/s12031-023-02159-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 09/25/2023] [Indexed: 10/06/2023]
Abstract
Stress is a state that is known to impact an organism's physiological and psychological balance as well as the morphology and functionality of certain brain areas. In the present work, chronic restraint stress (CRS) model rats treated with treadmill exercise were used to examine anomalies associated to emotion and mood as well as molecular changes in the brain. Forty male Sprague-Dawley rats were divided into control, stress, exercise, and stress+exercise groups. CRS were exposed to stress group rats and exercise group underwent a chronic treadmill exercise. Depressive-like behavior was evaluated with the forced swim test (FST) and tail suspension test (TST). For assessing anxiety-like behavior, the light-dark test (LDT) and the open field test (OFT) were used. The Morris water maze test (MWMT) was used for testing memory and learning. Brain's monoamine level and the expression of genes related to stress were measured. It was discovered that CRS lengthens latency in the MWMT, increases immobility in the FST and TST, decreases time in the light compartment, and causes hypoactivity in the OFT. CRS reduced the dopamine levels in the nucleus accumbens(NAc). Brain-derived neurotrophic factor (BDNF), dopamine receptors, and serotonin receptor (HTR2A) gene expression in the prefrontal cortex, corpus striatum, and hypothalamus were decreased by CRS. Exercise on a treadmill leads to increase NAc's dopamine and noradrenaline levels and prevented behavioral alterations. Exercise increased the alterations of BDNF expressions in the brain in addition to improving behavior. As a result, CRS-induced behavioral impairments were effectively reversed by chronic treadmill exercise with molecular alterations in the brain.
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Affiliation(s)
- Zubeyde Ercan
- Department of Physiotherapy and Rehabilitation, Faculty of Health Sciences, Firat University, Elazig, Turkey.
| | - Ozgur Bulmus
- Department of Physiology, Faculty of Medicine, Balikesir University, Balikesir, Turkey
| | - Emine Kacar
- Department of Physiology, Faculty of Medicine, Firat University, Elazig, Turkey
| | - Ihsan Serhatlioglu
- Department of Biophysics, Faculty of Medicine, Firat University, Elazig, Turkey
| | - Gokhan Zorlu
- Department of Biophysics, Faculty of Medicine, Firat University, Elazig, Turkey
| | - Haluk Kelestimur
- Department of Physiology, Faculty of Medicine, Istanbul Okan University, Istanbul, Turkey
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Fattore L, Amchova P, Fadda P, Ruda-Kucerova J. Olfactory Bulbectomy Model of Depression Lowers Responding for Food in Male and Female Rats: The Modulating Role of Caloric Restriction and Response Requirement. Biomedicines 2023; 11:2481. [PMID: 37760922 PMCID: PMC10525806 DOI: 10.3390/biomedicines11092481] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 08/25/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023] Open
Abstract
Depression is a psychiatric disorder characterized by a marked decrease in reward sensitivity. By using the olfactory bulbectomy (OBX) model of depression, it was shown that OBX rats display enhanced drug-taking and seeking behaviors in a self-administration paradigm than sham-operated (SHAM) controls, and sex is an important regulating factor. To reveal potential strain effects, we compared the operant behavior of male and female Sprague-Dawley and Wistar OBX and SHAM rats trained to self-administer palatable food pellets. Results showed that Sprague-Dawley OBX rats of both sexes exhibited lower operant responding rates and food intake than SHAM controls. Food restriction increased responding in both OBX and SHAM groups. Female rats responded more than males, but the OBX lesion abolished this effect. In Wistar rats, bulbectomy lowered food self-administration only during the last training days. Food self-administration was not significantly affected in Wistar rats by sex. In summary, this study showed that bulbectomy significantly reduces operant responding and food intake in male and female Sprague-Dawley rats while inducing a mild reducing effect only in the Wistar strain. Strain-dependent effects were also observed in the modulating role of sex and food restriction on operant responding and palatable food intake.
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Affiliation(s)
- Liana Fattore
- CNR Institute of Neuroscience-Cagliari, National Research Council, 09042 Monserrato, CA, Italy; (L.F.); (P.F.)
| | - Petra Amchova
- Department of Pharmacology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic;
| | - Paola Fadda
- CNR Institute of Neuroscience-Cagliari, National Research Council, 09042 Monserrato, CA, Italy; (L.F.); (P.F.)
- Department of Biomedical Sciences, Section of Neuroscience and Clinical Pharmacology, University of Cagliari, 09042 Monserrato, CA, Italy
| | - Jana Ruda-Kucerova
- Department of Pharmacology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic;
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8
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Naghibi S, Shariatzadeh Joneydi M, Barzegari A, Davoodabadi A, Ebrahimi A, Eghdami E, Fahimpour N, Ghorbani M, Mohammadikia E, Rostami M, Salari AA. Treadmill exercise sex-dependently alters susceptibility to depression-like behaviour, cytokines and BDNF in the hippocampus and prefrontal cortex of rats with sporadic Alzheimer-like disease. Physiol Behav 2021; 241:113595. [PMID: 34536437 DOI: 10.1016/j.physbeh.2021.113595] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 09/10/2021] [Accepted: 09/13/2021] [Indexed: 12/15/2022]
Abstract
Alzheimer's disease (AD) is associated with increased depression-related behaviours. Previous studies have reported a greater risk of AD and depression in women. In recent years, we and others have provided evidence that exercise during life could be used as a therapeutic strategy for stress-related disorders such as depression. The main goal of the current study was to determine whether treadmill exercise during life can reduce depression-related behaviours in male and female Wistar rats with sporadic Alzheimer-like disease (ALD). Animals were subjected to treadmill exercise eight weeks before and four weeks after ALD induction by streptozocin (STZ). We measured body weight, food intake, and depression-related symptoms in rats using five behavioural tests. We measured brain-derived-neurotrophic factor (BDNF), tumour-necrosis factor (TNF)-α, and interleukin (IL)-10 levels in the hippocampus and prefrontal cortex of animals. Our findings showed that exercise but not ALD induction decreased body weight and food intake in male and female rats. ALD induction increased depression-related symptoms and hippocampal TNF-α in male and female rats. Besides, treadmill exercise alone decreased depression-related behaviours and increased hippocampal BDNF in females but not males. We also found that treadmill exercise decreased depression-related behaviours and TNF-α in the hippocampus and prefrontal cortex, and increased IL-10 in the prefrontal cortex and BDNF in the hippocampus of female ALD-induced rats. However, treadmill exercise only reduced anhedonia-like behaviour and hippocampal TNF-α in male ALD-induced rats. Overall, the evidence from this study suggests that treadmill exercise alters depression-related behaviours, brain BDNF and cytokines in a sex-dependant manner in rats with sporadic Alzheimer-like disease.
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Affiliation(s)
- Saeed Naghibi
- Department of Exercise Physiology, Payame Noor University (PNU), Tehran, Iran
| | | | - Ali Barzegari
- Department of Exercise Physiology, Payame Noor University (PNU), Tehran, Iran
| | - Azam Davoodabadi
- Department of Exercise Physiology, Payame Noor University (PNU), Tehran, Iran
| | | | - Elham Eghdami
- Department of Exercise Physiology, Payame Noor University (PNU), Tehran, Iran
| | - Narges Fahimpour
- Department of Exercise Physiology, Payame Noor University (PNU), Tehran, Iran
| | - Mahmood Ghorbani
- Department of Exercise Physiology, Payame Noor University (PNU), Tehran, Iran
| | - Ehsan Mohammadikia
- Department of Exercise Physiology, Payame Noor University (PNU), Tehran, Iran
| | - Mozhgan Rostami
- Department of Exercise Physiology, Payame Noor University (PNU), Tehran, Iran
| | - Ali-Akbar Salari
- Salari Institute of Cognitive and Behavioral Disorders (SICBD), Karaj, Alborz, Iran.
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9
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Coppola DM, Parrish Waters R. The olfactory bulbectomy disease model: A Re-evaluation. Physiol Behav 2021; 240:113548. [PMID: 34371022 DOI: 10.1016/j.physbeh.2021.113548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 07/23/2021] [Accepted: 08/02/2021] [Indexed: 11/15/2022]
Abstract
The olfactory bulbectomized rodent has long been one of the preferred animal models of depression and certain other neuropsychiatric diseases. In fact, it is considered unparalleled, by some, in the search for antidepressant medication and the literature generated about the model is prodigious. We have revisited the "syndrome" of behavioral sequela following bulbectomy choosing ecologically valid tests likely to be underpinned with evolutionarily preserved neural circuits. Our test battery included measurements of activity, intermale aggression, pleasure seeking, stress/fear and non-spatial memory. The emphasis was on the timetable of syndrome emergence, since this has been understudied and bears on the widely held belief that non-olfactory effects dominate. Our results largely agree with previous reports describing the behavioral syndrome in that we document bulbectomized mice as hyperactive, non-aggressive and fearless. However, we did not find deficits in memory as have frequently been reported in previous studies. Notably, our results revealed that some syndrome behaviors-including the hallmark of hyperactivity-appear immediately or soon after surgery. This rapid appearance casts doubt on the widely held view that compensatory reorganization of limbic and prefrontal cortical areas following bulbectomy underlies the syndrome. Rather, hyperactivity, non-aggressiveness, reduced fear and diminished sucrose preference in the olfactory bulbectomized mouse find ready explanations in the loss of smell that is the immediate and irreversible outcome of bulbectomy. Finally, after a critical consideration of the literature and our results, we conclude that the olfactory bulbectomy model lacks the validity and simplicity previously credited to it. Indeed, we deem this lesion unsuitable as a model of most neuropsychiatric diseases since its effects are at least as complex and misunderstood as the disorders it is purported to model.
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Affiliation(s)
- David M Coppola
- Department of Biology, Randolph Macon College, Ashland, VA, United States.
| | - R Parrish Waters
- Department of Biology, University of Mary Washington, Fredericksburg, VA, United States
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10
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Waye SC, Dinesh OC, Hasan SN, Conway JD, Raymond R, Nobrega JN, Blundell J, Bambico FR. Antidepressant action of transcranial direct current stimulation in olfactory bulbectomised adolescent rats. J Psychopharmacol 2021; 35:1003-1016. [PMID: 33908307 DOI: 10.1177/02698811211000765] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Antidepressant drugs in adolescent depression are sometimes mired by efficacy issues and paradoxical effects. Transcranial direct current stimulation (tDCS) could represent an alternative. AIMS/METHODS We tested the antidepressant action of prefrontal tDCS and paroxetine (20 mg/kg, intraperitoneal) in olfactory bulbectomised (OBX) adolescent rats. Using enzyme-linked immunosorbent assays and in situ hybridisation, we examined treatment-induced changes in plasma brain-derived neurotrophic factor (BDNF) and brain serotonin transporter (SERT) and 5-HT-1A mRNA. RESULTS OBX-induced anhedonia-like reductions in sucrose preference (SP) correlated with open field (OF) hyperactivity. These were accompanied by decreased zif268 mRNA in the piriform/amygdalopiriform transition area, and increased zif268 mRNA in the hypothalamus. Acute paroxetine (2 days) led to a profound SP reduction, an effect blocked by combined tDCS-paroxetine administration. Chronic (14 days) tDCS attenuated hyperlocomotion and its combination with paroxetine blocked OBX-induced SP reduction. Correlations among BDNF, SP and hyperlocomotion scores were altered by OBX but were normalised by tDCS-paroxetine co-treatment. In the brain, paroxetine increased zif268 mRNA in the hippocampal CA1 subregion and decreased it in the claustrum. This effect was blocked by tDCS co-administration, which also increased zif268 in CA2. tDCS-paroxetine co-treatment had variable effects on 5-HT1A receptors and SERT mRNA. 5-HT1A receptor changes were found exclusively within depression-related parahippocampal/hippocampal subregions, and SERT changes within fear/defensive response-modulating brainstem circuits. CONCLUSION These findings point towards potential synergistic efficacies of tDCS and paroxetine in the OBX model of adolescent depression via mechanisms associated with altered expression of BDNF, 5-HT1A, SERT and zif268 in discrete corticolimbic areas.
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Affiliation(s)
- Shannon C Waye
- Department of Psychology, Memorial University of Newfoundland, St. John's, Canada
| | - O Chandani Dinesh
- Department of Psychology, Memorial University of Newfoundland, St. John's, Canada
| | - Sm Nageeb Hasan
- Department of Psychology, Memorial University of Newfoundland, St. John's, Canada
| | - Joshua D Conway
- Department of Psychology, Memorial University of Newfoundland, St. John's, Canada
| | - Roger Raymond
- Behavioural Neurobiology Laboratory, Centre for Addiction and Mental Health, Toronto, Canada
| | - José N Nobrega
- Behavioural Neurobiology Laboratory, Centre for Addiction and Mental Health, Toronto, Canada
| | - Jacqueline Blundell
- Department of Psychology, Memorial University of Newfoundland, St. John's, Canada
| | - Francis Rodriguez Bambico
- Department of Psychology, Memorial University of Newfoundland, St. John's, Canada.,Behavioural Neurobiology Laboratory, Centre for Addiction and Mental Health, Toronto, Canada
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11
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Oh JY, Liu QF, Hua C, Jeong HJ, Jang JH, Jeon S, Park HJ. Intranasal Administration of Melanin-Concentrating Hormone Reduces Stress-Induced Anxiety- and Depressive-Like Behaviors in Rodents. Exp Neurobiol 2020; 29:453-469. [PMID: 33372169 PMCID: PMC7788308 DOI: 10.5607/en20024] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 10/21/2020] [Accepted: 10/22/2020] [Indexed: 12/12/2022] Open
Abstract
Major depressive disorder is a complex neuropsychiatric disorder with few treatment options. Non-targeted antidepressants have low efficacy and can induce series of side effects. While a neuropeptide, melanin-concentrating hormone (MCH), is known to exhibit regulator of affective state, no study to date has assessed the anti-depressive effects of MCH in a stress-induced depression model. This study aimed to evaluate the pharmacological effects of intranasal administration of MCH on depression-related behavior in stressed rats and mice. Using a number of behavioral tests, we found that MCH treatment significantly decreased anxiety- and depressive-like behaviors induced by stress. Notably, the effects of MCH were equivalent to those of fluoxetine. MCH treatment also restored the activity of the mammalian target of rapamycin (mTOR) signaling pathway and normalized the levels of synaptic proteins, including postsynaptic density 95, glutamate receptor 1, and synapsin 1, which were all downregulated by stress. Interestingly, the protective effects of MCH were blocked by the mTOR inhibitor, rapamycin. These results suggest that MCH exhibits antidepressant properties by modulating the mTOR pathway. Altogether, this study provides an insight into the molecular mechanisms involved in the antidepressant-like effects of MCH, thereby paving the way for the future clinical application of MCH.
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Affiliation(s)
- Ju-Young Oh
- Department of Korean Medical Science, Graduate School of Korean Medicine, Kyung Hee University, Seoul 02447, Korea.,Studies of Translational Acupuncture Research (STAR), Acupuncture & Meridian Science Research Center (AMSRC), Kyung Hee University, Seoul 02447, Korea.,BK21 PLUS Korean Medicine Science Center, College of Korean Medicine, Kyung Hee University, Seoul 02447, Korea
| | - Quan Feng Liu
- Department of Neuropsychiatry, Graduate School of Oriental Medicine, Dongguk University, Gwangju 38066, Korea
| | - Cai Hua
- Department of Biomedical Sciences, Center for Creative Biomedical Scientists at Chonnam National University, Gwangju 61469, Korea
| | - Ha Jin Jeong
- Department of Biomedical Sciences, Center for Creative Biomedical Scientists at Chonnam National University, Gwangju 61469, Korea
| | - Jae-Hwan Jang
- Department of Korean Medical Science, Graduate School of Korean Medicine, Kyung Hee University, Seoul 02447, Korea.,Studies of Translational Acupuncture Research (STAR), Acupuncture & Meridian Science Research Center (AMSRC), Kyung Hee University, Seoul 02447, Korea.,BK21 PLUS Korean Medicine Science Center, College of Korean Medicine, Kyung Hee University, Seoul 02447, Korea
| | - Songhee Jeon
- Department of Biomedical Sciences, Center for Creative Biomedical Scientists at Chonnam National University, Gwangju 61469, Korea
| | - Hi-Joon Park
- Department of Korean Medical Science, Graduate School of Korean Medicine, Kyung Hee University, Seoul 02447, Korea.,Studies of Translational Acupuncture Research (STAR), Acupuncture & Meridian Science Research Center (AMSRC), Kyung Hee University, Seoul 02447, Korea.,BK21 PLUS Korean Medicine Science Center, College of Korean Medicine, Kyung Hee University, Seoul 02447, Korea
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12
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Rosa JM, Pazini FL, Camargo A, Wolin IAV, Olescowicz G, Eslabão LB, Romero OB, Winkelmann-Duarte EC, S Rodrigues AL. Prophylactic effect of physical exercise on Aβ 1-40-induced depressive-like behavior and gut dysfunction in mice. Behav Brain Res 2020; 393:112791. [PMID: 32599000 DOI: 10.1016/j.bbr.2020.112791] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 06/23/2020] [Accepted: 06/23/2020] [Indexed: 12/14/2022]
Abstract
Alzheimer's disease (AD) is a prevalent neurodegenerative disease that is highly comorbid with depression. Gut dysfunction has been proposed as a possible risk factor for both clinical conditions. In the present study, we investigated the ability of treadmill exercise for 4 weeks (5 days/week, 40 min/day) to counteract amyloid β1-40 peptide (Aβ1-40)-induced depressive-like behavior, alterations in morphological parameters of the duodenum, and the abundance of Firmicutes and Bacteroidetes phyla. Aβ1-40 administration (400 pmol/mouse, i.c.v.) increased immobility time in the tail suspension test (TST) and reduced time spent sniffing in the female urine sniffing test (FUST), indicating behavioral despair and impairment in reward-seeking behavior. These behavioral alterations, indicative of depressive-like behavior, were accompanied by reduced villus width in the duodenum. Moreover, photomicrographs obtained by transmission electron microscopy revealed abnormal epithelial microvilli in the duodenum from sedentary Aβ1-40-exposed mice, characterized by shorter microvilli and heterogeneity in the length of these structures that exhibit a disordered packing. Regarding the ultrastructure of Paneth cells, Aβ1-40 administration caused a reduction in the secretory granule diameter, as well as an enlarged peripheral halo. These animals also presented reduced Firmicutes and increased Bacteroidetes abundance, and increased Bacteroidetes/Firmicutes ratio. Most of the alterations observed in Aβ1-40-exposed mice were prevented by the practice of physical exercise. Altogether the results provide evidence of the prophylactic effect of physical exercise on Aβ1-40-induced depressive-like behavior and gut dysfunction in mice, suggesting that physical exercise could be useful for preventing depression associated with AD.
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Affiliation(s)
- Julia M Rosa
- Department of Biochemistry, Center of Biological Sciences, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina 88040-900, Brazil
| | - Francis L Pazini
- Department of Biochemistry, Center of Biological Sciences, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina 88040-900, Brazil
| | - Anderson Camargo
- Department of Biochemistry, Center of Biological Sciences, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina 88040-900, Brazil
| | - Ingrid A V Wolin
- Department of Biochemistry, Center of Biological Sciences, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina 88040-900, Brazil
| | - Gislaine Olescowicz
- Department of Pharmacology, Center of Biological Sciences, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina 88040-900, Brazil
| | - Livia B Eslabão
- Department of Microbiology, Immunology and Parasitology, Center of Biological Sciences, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina 88040-900, Brazil
| | - Oscar Bruna Romero
- Department of Microbiology, Immunology and Parasitology, Center of Biological Sciences, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina 88040-900, Brazil
| | - Elisa C Winkelmann-Duarte
- Department of Morphological Sciences, Center of Biological Sciences, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina 88040-900, Brazil
| | - Ana Lúcia S Rodrigues
- Department of Biochemistry, Center of Biological Sciences, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina 88040-900, Brazil.
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13
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Association between olfactory function and inhibition of emotional competing distractors in major depressive disorder. Sci Rep 2020; 10:6322. [PMID: 32286450 PMCID: PMC7156747 DOI: 10.1038/s41598-020-63416-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 03/30/2020] [Indexed: 01/10/2023] Open
Abstract
We aimed to investigate the changes of olfaction of major depressive disorder (MDD) before and after medical treatment, and to preliminarily scrutinize the association between the olfactory function and the severity of depressive symptoms, response inhibition, and emotional responding. Forty-eight medicine-naïve MDD patients plus 33 healthy controls (HC) matched on gender, ages, and level of education, were recruited in the test group. The Chinese Smell Identification Test (CSIT), Self-reported Olfactory Scale (SROS), 17-item Hamilton Depression Rating Scale (HAMD-17), Hamilton Anxiety Rating Scale (HAMA), and mean reaction time/accuracy rate (ΔMRT) of emotional Stroop test were measured. The patients were assessed before the treatment (baseline) and 3 months after the treatment (follow-up). The data at the baseline level were measured then associated using multiple linear regression stepwise analysis. The MDD patients had lower scores of the CSIT and SROS and longer ΔMRT at baseline level compared to HC while the ΔMRT of MDD patients remained longer after 3-month treatment (p’s < 0.05). At the baseline level, the regression equation including age and ΔMRT of negative word-color congruent (NEG-C), was finally observed as follows: y(CSIT) = 10.676–0.063 × 1–0.002 × 2, [x1 = the age(y), x2 = the NEG-C (ms)]. The olfactory function of MDD appears to be correlated negatively with the age and the ΔMRT of negative stimuli before treatment. After the remission of MDD, the olfactory dysfunction was improved, which might be regarded as a responding phenotype of brain function of MDD rather than the emotional responding.
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14
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Wang F, Wu X, Gao J, Li Y, Zhu Y, Fang Y. The relationship of olfactory function and clinical traits in major depressive disorder. Behav Brain Res 2020; 386:112594. [PMID: 32194189 DOI: 10.1016/j.bbr.2020.112594] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 02/12/2020] [Accepted: 03/10/2020] [Indexed: 10/24/2022]
Abstract
People who have developed a good sense of smell could experience much more happiness and pleasure, which would trigger a discussion that olfactory disorder might correlate with the pathogenesis of major depressive disorder (MDD). Similar experiments conducted on rats have confirmed that nerve damage of olfactory pathway can induce a series of depression-like changes, including behavior, neurobiochemistry, and neuroimmunity. These changes will recover progressively with anti-depression treatment. While in similar studies on human beings, olfactory dysfunction has been found in people suffering from depression. This review briefly discusses the correlation between olfactory deficits and clinical traits of depression in different dimensions, such as the severity, duration and cognitive impairment of depression. Improving olfactory function may be expected to be a potential antidepressant therapy.
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Affiliation(s)
- Fang Wang
- Shanghai Yangpu Mental Health Center, Shanghai, 200093, China; Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Xiaohui Wu
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Jerry Gao
- Yennora Public School, NSW, 2161, Australia
| | - Yongchao Li
- Shanghai Yangpu Mental Health Center, Shanghai, 200093, China
| | - Yuncheng Zhu
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China.
| | - Yiru Fang
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China; CAS Center for Excellence in Brain Science and Intelligence Technology, 200031, China; Shanghai Key Laboratory of Psychotic disorders, Shanghai, 201108, China.
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15
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Kim TW, Park SS, Kim BK, Sim YJ, Shin MS. Effects of sildenafil citrate on peripheral fatigue and exercise performance after exhaustive swimming exercise in rats. J Exerc Rehabil 2019; 15:751-756. [PMID: 31938694 PMCID: PMC6944887 DOI: 10.12965/jer.1938712.356] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 11/20/2019] [Indexed: 12/24/2022] Open
Abstract
Sildenafil citrate is a potent and selective inhibitor of phosphodiesterase type-5 used to treat erectile dysfunction. We investigated the effects of sildenafil citrate treatment on peripheral fatigue and exercise performance after exhaustive swimming exercise in rats. The rats in the sildenafil citrate-treated groups received sildenafil citrate orally once a day for 14 consecutive days at respective dosage. On the 14 days after starting experiment, each animal was submitted to swimming test with intensity equivalent to overload. The exhaustion was defined as a state in which coordinated movements did not return to the water surface for breathing within 10 sec. Western blot for monocarboxylate transporter (MCT)1, MCT4, and neuronal nitric oxide synthase (nNOS) were performed. Exhaustive swimming exercise decreased time of exhaustion and increased lactate concentration, however, sildenafil citrate enhanced time of exhaustion and decreased lactate concentration. Exhaustive swimming exercise increased MCT1 and MCT4 expressions in the gastrocnemius muscles and sildenafil citrate further enhanced MCT1 and MCT4 expressions in the exhaustive swimming exercise rats. Exhaustive swimming exercise decreased nNOS expression in the gastrocnemius muscles and sildenafil citrate enhanced nNOS expression in the exhaustive swimming exercise rats. The most potent effect appeared in the 20-mg/kg sildenafil citrate. Sildenafil citrate might be proposed as a potential ergogenic aid through antiperipheral fatigue.
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Affiliation(s)
- Tae-Woon Kim
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul, Korea
| | - Sang-Seo Park
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul, Korea
| | - Bo-Kyun Kim
- Department of Emergency Technology, College of Health Science, Gachon University, Incheon, Korea
| | - Young-Je Sim
- Department of Physical Education, Kunsan National University, Gunsan, Korea
| | - Mal-Soon Shin
- College of Culture and Sports, Division of Global Sport Studies, Korea University, Sejong, Korea
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16
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Park SS, Kim TW, Kim CJ, Hong SY, Kim BK, Sim YJ, Shin MS. Effect of sildenafil citrate on brain central fatigue after exhaustive swimming exercise in rats. J Exerc Rehabil 2019; 15:651-656. [PMID: 31723552 PMCID: PMC6834709 DOI: 10.12965/jer.1938582.291] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 09/20/2019] [Indexed: 11/28/2022] Open
Abstract
Sildenafil citrate, a potent and selective inhibitor of phosphodiesterase type-5, is used clinically to treat erectile dysfunction and pulmonary arterial hypertension. We investigated the effect of sildenafil citrate on brain central fatigue through serotonin (5-hydroxytryptamine, 5-HT) synthesis after exhaustive swimming exercise in rats. The rats in the sildenafil citrate-treated groups received sildenafil citrate orally once a day for 14 consecutive days at respective dosage. On the 14 days after starting experiment, each animal was submitted to swimming test with intensity equivalent to overload. The exhaustion was defined as a state in which coordinated movements did not return to the water surface for breathing within 10 sec. Immunohistochemistry for 5-HT, tryptophan hydroxylase (TPH), and western blot for serotonergic type 1A (5-HT1A) receptor and 5-HT transporter (5-HTT) were performed. Exhaustive swimming exercise increased 5-HT and TPH expressions in the dorsal raphe and sildenafil citrate suppressed 5-HT and TPH expressions in the exhaustive swimming exercise rats. Exhaustive swimming exercise increased 5-HT1A receptor and 5-HTT expressions in the dorsal raphe and sildenafil citrate suppressed 5-HT1A receptor and 5-HTT expressions in the exhaustive swimming exercise rats. The significant suppressing effect appeared in the 20-mg/kg sildenafil citrate. Sildenafil citrate might be proposed as a potential ergogenic aid through anticentral fatigue.
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Affiliation(s)
- Sang-Seo Park
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul, Korea
| | - Tae-Woon Kim
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul, Korea
| | - Chang-Ju Kim
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul, Korea
| | - Seo-Youn Hong
- Department of Sports Medicine, Soonchunhyang University, Asan, Korea
| | - Bo-Kyun Kim
- Department of Emergency Technology, College of Health Science, Gachon University, Incheon, Korea
| | - Young-Je Sim
- Department of Physical Education, Kunsan National University, Gunsan, Korea
| | - Mal-Soon Shin
- College of Culture and Sports, Division of Global Sport Studies, Korea University, Sejong, Korea
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17
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Ribeiro VB, Lopes IP, Dos Reis RM, Silva RC, Mendes MC, Melo AS, de Souza HCD, Ferriani RA, Kogure GS, Lara LADS. Continuous versus intermittent aerobic exercise in the improvement of quality of life for women with polycystic ovary syndrome: A randomized controlled trial. J Health Psychol 2019; 26:1307-1317. [PMID: 31495231 DOI: 10.1177/1359105319869806] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Polycystic ovary syndrome predisposes alterations which contribute to the reduction of quality of life. This randomized controlled clinical trial study was to evaluate the effect of two protocols of aerobic exercise on quality of life in women with polycystic ovary syndrome. Women were allocated to three groups: continuous aerobic training (n = 28), intermittent aerobic training (n = 29), and control group (no training; n = 30). Testosterone levels, body composition indices, and quality of life were assessed at baseline and after 16 weeks of intervention. Both protocols were effective to improve testosterone levels, anthropometric indices, and quality of life in polycystic ovary syndrome women. Thus, these protocols should be included in the clinical environment to improve clinical parameters psychological, biological and social health to this population.
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Affiliation(s)
- Victor Barbosa Ribeiro
- Ribeirão Preto Medical School, Human Reproduction Sector, Department of Gynecology and Obstetrics, University of São Paulo, Ribeirão Preto, Brazil.,Federal Institute of São Paulo, Jacarei Campus, Brazil
| | - Iris Palma Lopes
- Ribeirão Preto Medical School, Human Reproduction Sector, Department of Gynecology and Obstetrics, University of São Paulo, Ribeirão Preto, Brazil
| | - Rosana Maria Dos Reis
- Ribeirão Preto Medical School, Human Reproduction Sector, Department of Gynecology and Obstetrics, University of São Paulo, Ribeirão Preto, Brazil
| | - Rafael Costa Silva
- Ribeirão Preto Medical School, Human Reproduction Sector, Department of Gynecology and Obstetrics, University of São Paulo, Ribeirão Preto, Brazil
| | - Maria Célia Mendes
- Ribeirão Preto Medical School, Human Reproduction Sector, Department of Gynecology and Obstetrics, University of São Paulo, Ribeirão Preto, Brazil
| | - Anderson Sanches Melo
- Ribeirão Preto Medical School, Human Reproduction Sector, Department of Gynecology and Obstetrics, University of São Paulo, Ribeirão Preto, Brazil
| | - Hugo Celso Dutra de Souza
- Department of Biomechanics, Medicine and Rehabilitation of the Locomotor System, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Rui Alberto Ferriani
- Ribeirão Preto Medical School, Human Reproduction Sector, Department of Gynecology and Obstetrics, University of São Paulo, Ribeirão Preto, Brazil
| | - Gislaine Satyko Kogure
- Ribeirão Preto Medical School, Human Reproduction Sector, Department of Gynecology and Obstetrics, University of São Paulo, Ribeirão Preto, Brazil
| | - Lúcia Alves da Silva Lara
- Ribeirão Preto Medical School, Human Reproduction Sector, Department of Gynecology and Obstetrics, University of São Paulo, Ribeirão Preto, Brazil
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18
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Rosa JM, Pazini FL, Olescowicz G, Camargo A, Moretti M, Gil-Mohapel J, Rodrigues ALS. Prophylactic effect of physical exercise on Aβ 1-40-induced depressive-like behavior: Role of BDNF, mTOR signaling, cell proliferation and survival in the hippocampus. Prog Neuropsychopharmacol Biol Psychiatry 2019; 94:109646. [PMID: 31078612 DOI: 10.1016/j.pnpbp.2019.109646] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 05/02/2019] [Accepted: 05/08/2019] [Indexed: 12/17/2022]
Abstract
Alzheimer's disease (AD) is characterized by progressive cognitive impairments as well as non-cognitive symptoms such as depressed mood. Physical exercise has been proposed as a preventive strategy against AD and depression, an effect that may be related, at least partially, to its ability to prevent impairments on cell proliferation and neuronal survival in the hippocampus, a structure implicated in both cognition and affective behavior. Here, we investigated the ability of treadmill exercise (4 weeks) to counteract amyloid β1-40 peptide-induced depressive-like and anxiety-like behavior in mice. Moreover, we addressed the role of the BDNF/mTOR intracellular signaling pathway as well as hippocampal cell proliferation and survival in the effects of physical exercise and/or Aβ1-40. Aβ1-40 administration (400 pmol/mouse, i.c.v.) increased immobility time and reduced the latency to immobility in the forced swim test, a finding indicative of depressive-like behavior. In addition, Aβ1-40 administration also decreased time spent in the center of the open field and increased grooming and defecation, alterations indicative of anxiety-like behavior. These behavioral alterations were accompanied by a reduction in the levels of mature BDNF and mTOR (Ser2448) phosphorylation in the hippocampus. In addition, Aß1-40 administration reduced cell proliferation and survival in the ventral, dorsal and entire dentate gyrus of the hippocampus. Importantly, most of these behavioral, neurochemical and structural impairments induced by Aβ1-40 were not observed in mice subjected to 4 weeks of treadmill exercise. These findings indicate that physical exercise has the potential to prevent the occurrence of early emotional disturbances associated with AD and this appears to be mediated, at least in part, by modulation of hippocampal BDNF and mTOR signaling as well as through promotion of cell proliferation and survival in the hippocampal DG.
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Affiliation(s)
- Julia M Rosa
- Department of Biochemistry, Center of Biological Sciences, Universidade Federal de Santa Catarina, Campus Universitário, Trindade, Florianópolis, Santa Catarina 88040-900, Brazil
| | - Francis L Pazini
- Department of Biochemistry, Center of Biological Sciences, Universidade Federal de Santa Catarina, Campus Universitário, Trindade, Florianópolis, Santa Catarina 88040-900, Brazil
| | - Gislaine Olescowicz
- Department of Biochemistry, Center of Biological Sciences, Universidade Federal de Santa Catarina, Campus Universitário, Trindade, Florianópolis, Santa Catarina 88040-900, Brazil
| | - Anderson Camargo
- Department of Biochemistry, Center of Biological Sciences, Universidade Federal de Santa Catarina, Campus Universitário, Trindade, Florianópolis, Santa Catarina 88040-900, Brazil
| | - Morgana Moretti
- Department of Biochemistry, Center of Biological Sciences, Universidade Federal de Santa Catarina, Campus Universitário, Trindade, Florianópolis, Santa Catarina 88040-900, Brazil
| | - Joana Gil-Mohapel
- Division of Medical Sciences, University of Victoria, Island Medical Program, Faculty of Medicine, University of British Columbia, Victoria, British Columbia, Canada
| | - Ana Lúcia S Rodrigues
- Department of Biochemistry, Center of Biological Sciences, Universidade Federal de Santa Catarina, Campus Universitário, Trindade, Florianópolis, Santa Catarina 88040-900, Brazil.
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19
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Seo JH, Park HS, Park SS, Kim CJ, Kim DH, Kim TW. Physical exercise ameliorates psychiatric disorders and cognitive dysfunctions by hippocampal mitochondrial function and neuroplasticity in post-traumatic stress disorder. Exp Neurol 2019; 322:113043. [PMID: 31446079 DOI: 10.1016/j.expneurol.2019.113043] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 07/24/2019] [Accepted: 08/20/2019] [Indexed: 12/15/2022]
Abstract
Post-traumatic stress disorder (PTSD) is a stress-related condition that can be triggered by witnessing or experiencing a life-threatening event, such as a war, natural disaster, terrorist attack, major accident, or assault. PTSD is caused by dysfunction of the hippocampus and causes problems associated with brain functioning, such as anxiety, depression, and cognitive impairment. Exercise is known to have a positive effect on brain function, especially in the hippocampus. In this study, we investigated the effect of aerobic exercise on mitochondrial function and neuroplasticity in the hippocampus as well as behavioral changes in animal models of PTSD. Exposure to severe stress resulted in mitochondrial dysfunction in the hippocampus, including impaired Ca2+ homeostasis, an increase in reactive oxygen species such as H2O2, a decrease in the O2 respiration rate, and overexpression of membrane permeability transition pore-related proteins, including voltage-dependent anion channel, adenine nucleotide translocase, and cyclophilin-D. Exposure to extreme stress also decreased neuroplasticity by increasing apoptosis and decreasing the brain-derived neurotrophic factor level and neurogenesis, resulting in increased anxiety, depression, and cognitive impairment. The impairments in mitochondrial function and neuroplasticity in the hippocampus, as well as anxiety, depression, and cognitive impairment, were all improved by exercise. Exercise-induced improvement of the brain-derived neurotrophic factor level in particular might alter mitochondrial function, neuroplasticity, and the rate of apoptosis in the hippocampus. Therefore, exercise might be an important non-pharmacological intervention for the prevention and treatment of the pathobiology of PTSD.
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Affiliation(s)
- Jin-Hee Seo
- Department of Adapted physical education, Baekseok University, Cheonan, Republic of Korea
| | - Hye-Sang Park
- Department of Kinesiology, College of public health and Cardiovascular Research Center, Lewis Katz school of Medicine, Temple University, Philadelphia, PA, USA
| | - Sang-Seo Park
- Department of physiology, College of medicine, Kyung Hee University, Seoul, Republic of Korea; Kohwang Medical Research Institute, Kyung Hee University, Seoul, Republic of Korea
| | - Chang-Ju Kim
- Department of physiology, College of medicine, Kyung Hee University, Seoul, Republic of Korea; Kohwang Medical Research Institute, Kyung Hee University, Seoul, Republic of Korea
| | - Dong-Hyun Kim
- College of Sports science, Sungkyunkwan University, Suwon, Republic of Korea
| | - Tae-Woon Kim
- Department of physiology, College of medicine, Kyung Hee University, Seoul, Republic of Korea; Kohwang Medical Research Institute, Kyung Hee University, Seoul, Republic of Korea; Exercise Rehabilitation Research Institute, Department of Exercise & Health Science, Sangmyung University, Seoul, Republic of Korea.
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20
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Park SS, Park HS, Kim CJ, Baek SS, Kim TW. Exercise attenuates maternal separation-induced mood disorder-like behaviors by enhancing mitochondrial functions and neuroplasticity in the dorsal raphe. Behav Brain Res 2019; 372:112049. [PMID: 31229645 DOI: 10.1016/j.bbr.2019.112049] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 06/05/2019] [Accepted: 06/20/2019] [Indexed: 01/28/2023]
Abstract
Loss of the mother-infant relationship during early childhood affects infant development and is known to increase the infant's vulnerability to neuropsychiatric disorders throughout life. Serotonin deficits and mitochondrial dysfunction in the dorsal raphe may underlie mood disorders such as anxiety and depression. Exercise is known to have a positive effect on brain function. In this study, we investigated the effect of exercise on mitochondrial function, apoptosis, and serotonin levels in the dorsal raphe as well as behavioral changes in cases of maternal separation. Exposure to the stress of maternal separation resulted in mitochondrial dysfunction in the dorsal raphe, including impaired Ca2+ homeostasis, an increase in reactive oxygen species such as H2O2, and a decrease in the O2 respiration rate. Exposure to maternal separation stress also decreased tryptophan hydroxylase and 5-hydroxytryptamine positive cells and increased apoptosis, anxiety, and depression. The impairments in mitochondrial function, apoptosis, and serotonin in the dorsal raphe, as well as anxiety and depression, were all improved by exercise. Exercise might alter mitochondrial function, serotonin levels, and the rate of apoptosis in the dorsal raphe. Therefore, exercise might be an important non-pharmacological intervention for the prevention and treatment of the adverse effects of maternal separation.
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Affiliation(s)
- Sang-Seo Park
- Department of physiology, college of medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Hey-Sang Park
- Department of Kinesiology, College of public health and Cardiovascular Research Center, Lewis Katz school of Medicine, Temple University, Philadelphia, PA, USA
| | - Chang-Ju Kim
- Department of physiology, college of medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Seung-Soo Baek
- Exercise Rehabilitation Research Institute, Department of Exercise & Health Science, Sangmyung University, Seoul, Republic of Korea
| | - Tae-Woon Kim
- Department of physiology, college of medicine, Kyung Hee University, Seoul, Republic of Korea; Exercise Rehabilitation Research Institute, Department of Exercise & Health Science, Sangmyung University, Seoul, Republic of Korea.
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21
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Wu T, Huang Y, Gong Y, Xu Y, Lu J, Sheng H, Ni X. Treadmill Exercise Ameliorates Depression-Like Behavior in the Rats With Prenatal Dexamethasone Exposure: The Role of Hippocampal Mitochondria. Front Neurosci 2019; 13:264. [PMID: 30971882 PMCID: PMC6443890 DOI: 10.3389/fnins.2019.00264] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Accepted: 03/06/2019] [Indexed: 12/11/2022] Open
Abstract
Prenatal exposure to synthetic glucocorticoids (sGCs) can increase the risk of affective disorders, such as depression, in adulthood. Given that exercise training can ameliorate depression and improve mitochondrial function, we sought to investigate whether exercise can ameliorate depression-like behavior induced by prenatal sGC exposure and mitochondria function contributes to that behavior. At first, we confirmed that prenatal dexamethasone (Dex) administration in late pregnancy resulted in depression-like behavior and elevated level of circulatory corticosterone in adult offspring. We then found that mRNA and protein expression of a number of mitochondrial genes was changed in the hippocampus of Dex offspring. Mitochondria in the hippocampus showed abnormal morphology, oxidative stress and dysfunction in Dex offspring. Intracerebroventricular (ICV) injection of the mitochondrial superoxide scavenger mitoTEMPO significantly alleviated depression-like behavior but did not significantly affect circulatory corticosterone level in Dex offspring. The adult Dex offspring treated with treadmill exercise starting at four-weeks of age showed ameliorated depressive-like behavior, improved mitochondrial morphology and function and reduced circulatory corticosterone level. Our data suggest mitochondria dysfunction contributes to depression-like behavior caused by prenatal sGC exposure. Intervention with exercise training in early life can reverse depression caused by prenatal Dex exposure, which is associated with improvement of mitochondrial function in the hippocampus.
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Affiliation(s)
- Tianwen Wu
- Department of Physiology, Second Military Medical University, Shanghai, China
| | - Yan Huang
- Department of Physiology, Second Military Medical University, Shanghai, China
| | - Yuxiang Gong
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Yongjun Xu
- Department of Physiology, Second Military Medical University, Shanghai, China.,Department of Clinical Genetics and Experimental Medicine, Fuzhou General Hospital, School of Medicine, Xiamen University, Fuzhou, China
| | - Jianqiang Lu
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Hui Sheng
- Department of Physiology, Second Military Medical University, Shanghai, China
| | - Xin Ni
- Department of Physiology, Second Military Medical University, Shanghai, China.,Research Center of Molecular Metabolomics, Xiangya Hospital, Central South University, Changsha, China
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22
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Oh JY, Kim YK, Kim SN, Lee B, Jang JH, Kwon S, Park HJ. Acupuncture modulates stress response by the mTOR signaling pathway in a rat post-traumatic stress disorder model. Sci Rep 2018; 8:11864. [PMID: 30089868 PMCID: PMC6082850 DOI: 10.1038/s41598-018-30337-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 07/25/2018] [Indexed: 01/02/2023] Open
Abstract
Post-traumatic stress disorder (PTSD) is a psychiatric disease that can form following exposure to a traumatic event. Acupuncture has been proposed as a beneficial treatment for PTSD, but the underlying mechanisms remain unclear. The present study investigated whether acupuncture improves depression- and anxiety-like behaviors induced using a single prolonged stress (SPS) as a PTSD rat model. In addition, we investigated whether the effects were mediated by increased mTOR activity and its downstream signaling components, which contribute to protein synthesis required for synaptic plasticity in the hippocampus. We found that acupuncture at HT8 significantly alleviated both depression- and anxiety-like behaviors induced by SPS in rats, as assessed by the forced swimming, elevated plus maze, and open field tests; this alleviation was blocked by rapamycin. The effects of acupuncture were equivalent to those exerted by fluoxetine. Acupuncture regulated protein translation in the mTOR signaling pathway and enhanced the activation of synaptic proteins, PSD95, Syn1, and GluR1 in the hippocampus. These results suggest that acupuncture exerts antidepressant and anxiolytic effects on PTSD-related symptoms by increasing protein synthesis required for synaptic plasticity via the mTOR pathway in the hippocampus. Acupuncture may be a promising treatment for patients with PTSD and play a role as an alternative PTSD treatment.
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Affiliation(s)
- Ju-Young Oh
- Acupuncture and Meridian Science Research Center, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Republic of Korea.,Department of Korean Medical Science, Graduate School of Korean Medicine, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemoon-gu, Seoul, 02447, Republic of Korea.,BK21 PLUS Korean Medicine Science Center, College of Korean Medicine, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemoon-gu, Seoul, 02447, Republic of Korea
| | - Yu-Kang Kim
- Acupuncture and Meridian Science Research Center, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Republic of Korea.,Department of Korean Medical Science, Graduate School of Korean Medicine, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemoon-gu, Seoul, 02447, Republic of Korea.,BK21 PLUS Korean Medicine Science Center, College of Korean Medicine, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemoon-gu, Seoul, 02447, Republic of Korea
| | - Seung-Nam Kim
- College of Korean Medicine, Dongguk University, 32, Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do, 10326, Republic of Korea
| | - Bombi Lee
- Acupuncture and Meridian Science Research Center, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Republic of Korea
| | - Jae-Hwan Jang
- Acupuncture and Meridian Science Research Center, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Republic of Korea.,Department of Korean Medical Science, Graduate School of Korean Medicine, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemoon-gu, Seoul, 02447, Republic of Korea.,BK21 PLUS Korean Medicine Science Center, College of Korean Medicine, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemoon-gu, Seoul, 02447, Republic of Korea
| | - Sunoh Kwon
- Korean Institute of Oriental Medicine, 1672 Yuseong-daero, Yuseong-gu, Daejeon, 34054, Republic of Korea
| | - Hi-Joon Park
- Acupuncture and Meridian Science Research Center, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Republic of Korea. .,Department of Korean Medical Science, Graduate School of Korean Medicine, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemoon-gu, Seoul, 02447, Republic of Korea. .,BK21 PLUS Korean Medicine Science Center, College of Korean Medicine, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemoon-gu, Seoul, 02447, Republic of Korea.
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Lee JM, Kim CJ, Park JM, Song MK, Kim YJ. Effect of treadmill exercise on spatial navigation impairment associated with cerebellar Purkinje cell loss following chronic cerebral hypoperfusion. Mol Med Rep 2018; 17:8121-8128. [PMID: 29693705 PMCID: PMC5983984 DOI: 10.3892/mmr.2018.8893] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Accepted: 03/20/2018] [Indexed: 12/16/2022] Open
Abstract
In addition to roles in motor coordination, the cerebellum is also associated with cognitive function. The aim of the present study was to investigate the effect of treadmill exercise on spatial navigation deficit induced by chronic cerebral hypoperfusion (CCH). Furthermore, whether decreased loss of Purkinje cells, which contain the calcium-binding protein in the posterior lobe of the cerebellum, attenuates the spatial navigation deficit induced by CCH was also investigated. Wistar rats were randomly divided into three groups: Sham group, bilateral common carotid arteries occlusion (BCCAO) group and a BCCAO + exercise (Ex) group. The rats in the BCCAO + Ex group ran on a treadmill for 30 min once a day for 8 weeks, starting at 4 weeks post-birth. CCH was induced by performing BCCAO at 12 weeks post-birth. The Morris water maze test was performed to determine the spatial navigation function of the rats. To investigate the histological features of the cerebellum in all of the experimental groups post-treatment, terminal deoxynucleotidyl transferase dUTP nick end labeling staining, as well as immunohistochemical analysis revealing the expression of calbindin, parvalbumin, glial fibrillary acidic protein, ionized calcium-binding adaptor molecule 1 and caspase-3, was performed. The results of the present study revealed that treadmill exercise improved spatial navigation, decreased the expression of reactive astrocytes and microglial cells, and decreased apoptotic rates in the cerebellar vermis post-CCH. Treadmill exercise also attenuated the loss of Purkinje cells following CCH. The number of Purkinje cells was revealed to be negatively correlated with spatial navigation performance. These results indicate that treadmill exercise may attenuate spatial navigation impairment via inhibition of Purkinje cell loss in the posterior lobe of the cerebellum following CCH. Therefore, treadmill exercise may represent a therapeutic strategy for the treatment of patients with spatial navigation impairment following CCH.
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Affiliation(s)
- Jae-Min Lee
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Chang-Ju Kim
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Jong-Min Park
- Department of Nursing, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Min Kyung Song
- Department of Nursing, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Youn-Jung Kim
- Department of Basic Nursing Science, College of Nursing Science, Kyung Hee University, Seoul 02447, Republic of Korea
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Lee JM, Kim TW, Park HS, Park SS, Shin MS, Sung YH, Seo TB, Kim YP. Effects of exercise on sexual function and central mechanism in the streptozotocin-induced diabetic rats. J Exerc Rehabil 2018; 14:10-15. [PMID: 29511647 PMCID: PMC5833952 DOI: 10.12965/jer.1836072.036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 02/10/2018] [Indexed: 12/05/2022] Open
Abstract
Diabetes mellitus is associated with the impairment of sexual function including desire and orgasmic dysfunction. Sexual dysfunction in the diabetes mellitus is due to a selective defect of the nitric oxide synthase (NOS) within paraventricular nucleus (PVN). c-Fos is an immediate early gene and c-Fos expression represents neuronal activity in response to various stimuli. In the present study, we investigated the effects of treadmill exercise on sexual behaviors and the expressions of NOS and c-Fos in the PVN were evaluated using streptozotocin (STZ)-induced diabetic rats. Diabetes mellitus was induced by intraperitoneal injection of STZ. The rats in the treadmill exercise groups were made to run on a treadmill for 30 min once a day during 4 weeks. Male sexual behaviors were evaluated by recording the number of mounting, intromission, and ejaculation frequency. The present results revealed that treadmill exercise ameliorated sexual dysfunction in the STZ-induced diabetic rats. Treadmill exercise restored the contents of NOS and c-Fos in the PVN. The improving effect of treadmill exercise on sexual function can be considered as the neuronal activating effect of exercise through increasing expressions of NO and c-Fos.
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Affiliation(s)
- Jae-Min Lee
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul, Korea
| | - Tae-Woon Kim
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul, Korea
| | - Hye-Sang Park
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul, Korea
| | - Sang-Seo Park
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul, Korea
| | - Mal-Soon Shin
- School of Global Sport Studies, Korea University, Sejong, Korea
| | - Yun-Hee Sung
- Department of Physical Therapy, Kyungnam University, Changwon, Korea
| | - Tae-Beom Seo
- Department of Kinesiology, College of Natural Science, Jeju National University, Jeju, Korea
| | - Young-Pyo Kim
- Department of Kinesiology, College of Natural Science, Jeju National University, Jeju, Korea
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Han JH, Shin MS, Lee JM, Kim TW, Jin JJ, Ko IG, Kim SE, Kim CJ, Kim M, Roh JH, Kim KH. Long-term chemical castration induces depressive symptoms by suppressing serotonin expression in rats. Anim Cells Syst (Seoul) 2018. [DOI: 10.1080/19768354.2018.1427626] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Affiliation(s)
- Jin-Hee Han
- Department of Anesthesiology and Pain Medicine, Kyung Hee Medical Center, Kyung Hee University College of Medicine, Seoul, Republic of Korea
| | - Mal-Soon Shin
- School of Global Sport Studies, Korea University, Sejong, Republic of Korea
| | - Jae-Min Lee
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Tae-Woon Kim
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Jun-Jang Jin
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Il-Gyu Ko
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Sung-Eun Kim
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Chang-Ju Kim
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Mia Kim
- Department of Cardiovascular and Neurologic Diseases (Stroke Center), College of Oriental Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Joo Hwan Roh
- Department of Urology, Gil Medical Center, Gachon University College of Medicine and Science, Incheon, Republic of Korea
| | - Khae Hawn Kim
- Department of Urology, Gil Medical Center, Gachon University College of Medicine and Science, Incheon, Republic of Korea
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Effects of programmed exercise on depressive symptoms in midlife and older women: A meta-analysis of randomized controlled trials. Maturitas 2017; 106:38-47. [PMID: 29150165 DOI: 10.1016/j.maturitas.2017.09.001] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 08/30/2017] [Accepted: 09/01/2017] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To perform a systematic review and meta-analysis to clarify the effect of programmed exercise on depressive symptoms (DSs) in midlife and older women. METHODS We carried out a structured search of PubMed-Medline, Web of Science, Scopus, Embase, Cochrane Library and Scielo, from database inception through June 29, 2017, without language restriction. The search included the following terms: "depression", "depressive symptoms", "exercise", "physical activity", "menopause", and "randomized controlled trial" (RCTs) in midlife and older women. The US, UK and Australian Clinical Trials databases were also searched. We assessed randomized controlled trials (RCTs) that compared the effect of exercise for at least 6 weeks versus no intervention on DSs as the outcome (as defined by trial authors). Exercise was classified according to duration as "mid-term exercise intervention" (MTEI; lasting for 12 weeks to 4 months), and "long-term exercise intervention" (LTEI; lasting for 6-12 months). Mean changes (±standard deviations) in DSs, as assessed with different questionnaires, were extracted to calculate Hedges' g and then used as the effect size for meta-analysis. Standardized mean differences (SMDs) of DSs after intervention were pooled using a random-effects model. RESULTS Eleven publications were included for analysis related to 1943 midlife and older women (age range 44-55 years minimum to 65.5±4.0 maximum), none of whom was using a hormone therapy. Seven MTEIs were associated with a significant reduction in DSs (SMD=-0.44; 95% CI -0.69, -0.18; p=0.0008) compared with controls. The reduction in DSs was also significant in six LTEIs (SMD=- 0.29; 95% CI -0.49; -0.09; p=0.005). Heterogeneity of effects among studies was moderate to high. Less perceived stress and insomnia (after exercise) were also found as secondary outcomes. CONCLUSION Exercise of low to moderate intensity reduces depressive symptoms in midlife and older women.
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Koh SB, Kim TH, Min S, Lee K, Kang DR, Choi JR. Exposure to pesticide as a risk factor for depression: A population-based longitudinal study in Korea. Neurotoxicology 2017; 62:181-185. [DOI: 10.1016/j.neuro.2017.07.005] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 07/01/2017] [Accepted: 07/10/2017] [Indexed: 11/25/2022]
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Shin MS, Kim TW, Lee JM, Sung YH, Lim BV. Treadmill exercise alleviates depressive symptoms in rotenone-induced Parkinson disease rats. J Exerc Rehabil 2017; 13:124-129. [PMID: 28503522 PMCID: PMC5412483 DOI: 10.12965/jer.1734966.483] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 04/18/2017] [Indexed: 11/22/2022] Open
Abstract
Parkinson disease (PD) is characterized by selective loss of the dopaminergic neurons. The symptoms of depression following PD are closely associated with reduced activity of the serotonergic system in the dorsal raphe. We explored the antidepressive effect of exercise and its possible mechanism using the rotenone-induced PD rats. PD rats were induced by subcutaneously injection with rotenone for 14 days. The rats in the exercise groups were made to run on a treadmill for 30 min once a day during 14 consecutive days. Forced swimming test, immunohistochemistry for serotonin (5-hydroxytryptamine, 5-HT), tryptophan hydroxylase (TPH), and western blot for serotonin 1A (5-HT1A) receptor were conducted. Injection of rotenone induced PD rats. PD rats showed depressive state and treadmill exercise ameliorated this depressive state. 5-HT, TPH, and 5-HT1A receptor expressions in the dorsal raphe were suppressed by rotenone injection and treadmill exercise increased the expressions of 5-HT, TPH, and 5-HT1A receptor in the rotenone-injected rats. The present results show that treadmill exercise ameliorated depressive symptoms in the rotenone-induced PD rats. The antidepressive effect of treadmill exercise might be ascribed to the enhancement of serotonergic function through upregulation of 5-HT1A expression in the dorsal raphe.
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Affiliation(s)
- Mal-Soon Shin
- School of Global Sport Studies, Korea University, Sejong, Korea
| | - Tae-Woon Kim
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul, Korea
| | - Jae-Min Lee
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul, Korea
| | - Yun-Hee Sung
- Department of Physical Therapy, College of Health Sciences, Kyungnam University, Changwon, Korea
| | - Baek-Vin Lim
- Division of Leisure & Sports Science, Department of Exercise Prescription, Dongseo University, Busan, Korea
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