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Jia Z, Yu W, Li X, Dong T, Wang X, Li J, Yang J, Liu Y. Du-moxibustion ameliorates depression-like behavior and neuroinflammation in chronic unpredictable mild stress-induced mice. J Affect Disord 2024; 358:211-221. [PMID: 38705530 DOI: 10.1016/j.jad.2024.05.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 03/19/2024] [Accepted: 05/02/2024] [Indexed: 05/07/2024]
Abstract
BACKGROUND Neuroinflammation is involved in the advancement of depression. Du-moxibustion can treat depression. Here, we explored whether Du-moxibustion could alleviate neuroglia-associated neuro-inflammatory process in chronic unpredictable mild stress (CUMS) mice. METHODS C57BL/6J mice were distributed into five groups. Except for the CON group, other four groups underwent CUMS for four consecutive weeks, and Du-moxibustion was given simultaneously after modeling. Behavioral tests were then carried out. Additionally, Western blot was conducted to measure the relative expression levels of high-mobility group box 1 (HMGB1), toll-like receptor 4 (TLR4), myeloid differentiation factor 88 (MyD88), and nuclear factor-kappa B (NF-κB). Immunofluorescence was employed to evaluate the positive cells of ionized calcium binding adapter molecule 1 (Iba-1) and glial fibrillary acidic protein (GFAP). Furthermore, interleukin-1 beta (IL-1β) and tumor necrosis factor-alpha (TNF-α) were analyzed using an ELISA assay. RESULTS We found that CUMS induced depression-like behaviors, such as reduced sucrose preference ratio, decreased locomotor and exploratory activity, decreased the time in open arms and prolonged immobility. Furthermore, versus the CON group, the expression of HMGB1, TLR4, MyD88, NF-κB, positive cells of Iba-1, IL-1β and TNF-α were increased but positive cells of GFAP were decreased in CUMS group. However, the detrimental effects were ameliorated by treatment with CUMS+FLU and CUMS+DM. LIMITATIONS A shortage of this study is that only CUMS model of depression were used, while other depression model were not included. CONCLUSIONS Du-moxibustion alleviates depression-like behaviors in CUMS mice mainly by reducing neuroinflammation, which offers novel insights into the potential treatment of depression.
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Affiliation(s)
- Zhixia Jia
- College of First Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250011, Shandong, China
| | - Wenyan Yu
- College of Acupuncture and Massage, Shandong University of Traditional Chinese Medicine, Jinan, 250011, Shandong, China
| | - Xuhao Li
- College of Acupuncture and Massage, Shandong University of Traditional Chinese Medicine, Jinan, 250011, Shandong, China
| | - Tiantian Dong
- Traditional Chinese Medicine External Treatment Center, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, 250013, Shandong, China
| | - Xingxin Wang
- College of Acupuncture and Massage, Shandong University of Traditional Chinese Medicine, Jinan, 250011, Shandong, China
| | - Jinling Li
- College of Acupuncture and Massage, Shandong University of Traditional Chinese Medicine, Jinan, 250011, Shandong, China
| | - Jiguo Yang
- College of Acupuncture and Massage, Shandong University of Traditional Chinese Medicine, Jinan, 250011, Shandong, China.
| | - Yuanxiang Liu
- Department of Neurology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, 250013, Shandong, China.
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Zhang X, Qiao Y, Wang M, Liang X, Wei L, Zhang M, Bi H, Gao T. Study of the immune disorder and metabolic dysregulation underlying mental abnormalities caused by exposure to narrow confined spaces. Brain Res 2024:149101. [PMID: 38945470 DOI: 10.1016/j.brainres.2024.149101] [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: 02/08/2024] [Revised: 06/16/2024] [Accepted: 06/26/2024] [Indexed: 07/02/2024]
Abstract
Prolonged confinement in cramped spaces can lead to derangements in brain function/structure, yet the underlying mechanisms remain unclear. To investigate, we subjected mice to restraint stress to simulate long-term narrow and enclosed space confinement, assessing their mental state through behavioral tests. Stressed mice showed reduced center travel and dwell time in the Open Field Test and increased immobility in the Tail Suspension Test. We measured lower hippocampal brain-derived neurotrophic factor levels and cortical monoamine neurotransmitters (5-HT and NE) in the stressed group. Further examination of the body's immune levels and serum metabolism revealed immune dysregulation and metabolic imbalance in the stressed group. The results of the metabolic network regulation analysis indicate that the targets affected by these differential metabolites are involved in several metabolic pathways that the metabolites themselves participate in, such as the "long-term depression" and "purine metabolism" pathways. Additionally, these targets are also associated with numerous immune-related pathways, such as the TNF, NF-κB, and IL-17 signaling pathways, and these findings were validated using GEO dataset analysis. Molecular docking results suggest that differential metabolites may regulate specific immune factors such as TNF-α, IL-1β, and IL-6, and these results were confirmed in experiments. Our research findings suggest that long-term exposure to confined and narrow spaces can lead to the development of psychopathologies, possibly mediated by immune system dysregulation and metabolic disruption.
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Affiliation(s)
- Xingfang Zhang
- Department of Pharmacy, Faculty of Medicine, Qinghai University, Xining 810001, China; School of Psychology, Chengdu Medical College, Chengdu 610500, China; Qinghai Provincial Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation, Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining 810008, China
| | - Yajun Qiao
- Department of Pharmacy, Faculty of Medicine, Qinghai University, Xining 810001, China; School of Psychology, Chengdu Medical College, Chengdu 610500, China; Qinghai Provincial Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation, Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining 810008, China
| | - Mengyuan Wang
- Department of Pharmacy, Faculty of Medicine, Qinghai University, Xining 810001, China
| | - Xinxin Liang
- School of Psychology, Chengdu Medical College, Chengdu 610500, China; Qinghai Provincial Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation, Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining 810008, China
| | - Lixin Wei
- Qinghai Provincial Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation, Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining 810008, China; CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810001, China
| | - Ming Zhang
- Qinghai Provincial Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation, Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining 810008, China; CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810001, China
| | - Hongtao Bi
- Department of Pharmacy, Faculty of Medicine, Qinghai University, Xining 810001, China; Qinghai Provincial Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation, Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining 810008, China.
| | - Tingting Gao
- School of Psychology, Chengdu Medical College, Chengdu 610500, China; Department of Psychiatry, the People's Hospital of Jiangmen, Southern Medical University, Jiangmen 529000, China.
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Ye M, Nguyen S, Kim MJ, Hwang JS, Bae GW, Yang KHS, Shim I. Antidepressant Effect of Enzymatic Porcine Placenta Hydrolysate in Repeated Immobilization Stress-Induced Ovariectomized Female Mice. Curr Issues Mol Biol 2024; 46:6121-6138. [PMID: 38921037 PMCID: PMC11202803 DOI: 10.3390/cimb46060366] [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: 04/16/2024] [Revised: 06/04/2024] [Accepted: 06/12/2024] [Indexed: 06/27/2024] Open
Abstract
When postmenopausal women are under stress conditions, this exacerbates mood disorders and issues with neuroimmune systems. The porcine placenta is known to relieve menopausal depression in clinical trials, but its underlying mechanisms for depression and anti-inflammatory functions remain poorly defined. The present study was designed to examine the anti-inflammatory effects of enzymatic porcine placenta hydrolysate (EPPH) on LPS-induced levels of nitric oxide (NO), prostaglandin E2 (PGE2), corticosterone (CORT), and pro-inflammatory cytokine interleukin-1 beta (IL-1β) in RAW 264.7 macrophage cells. In addition, the neurite outgrowth of PC12 cells was evaluated to examine the effects of EPPH on neurite growth. To mimic the symptoms of women with menopause-related depression, a stressed ovariectomized (OVX) female mouse model was used to evaluate the antidepressant effects of EPPH. The female mice were randomly divided into five groups: (1) the sham-operated (Sham) group, (2) the OVX + repeated stress + saline-treated (OVX + ST) group, (3) the OVX + repeated stress + estradiol (0.2 mg/kg)-treated (positive control) group, (4) the OVX + repeated stress + EPPH (300 mg/kg)-treated (300) group, and (5) the OVX + repeated stress + EPPH (1500 mg/kg)-treated (1500) group. Female mice were OVX and repeatedly immobilization-stressed for 2 weeks (2 h/day). A tail suspension test was conducted on the 13th day, followed by the forced swimming test on the 14th day to assess the antidepressant effects of EPPH. After the behavioral tests, the levels of CORT, PGE2, and IL-1β were evaluated. In addition, c-Fos expression in the paraventricular nucleus (PVN) was evaluated using immunohistochemistry. The concentrations of NO, PGE2, and IL-1β stimulated by LPS were significantly reduced via the addition of EPPH to RAW 264.7 cells. EPPH significantly promoted neurite outgrowth in PC12 cells compared to that of the controls. In the tail suspension test, the duration of immobility was reduced in mice treated with EPPH 1500 compared to the OVX + ST group. The EPPH 1500 group had significantly decreased levels of c-Fos-positive neurons in the PVN and reduced levels of CORT and IL-1β in the serum of the Sham group. These results suggested that the high dose of EPPH administration induced the antidepressant-like effect in the ovariectomized mice with repeated stress via downregulating the levels of CORT, IL-1β, and PGE2 in the serum through reducing the expression of c-Fos in the PVN regions.
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Affiliation(s)
- Minsook Ye
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Sharon Nguyen
- Biological Sciences Program, Schmid College of Science and Technology, Chapman University, Orange, CA 92866, USA
| | - Min Ju Kim
- Department of R&D, Unimed Pharmaceuticals Inc., Unimed Bldg., Seoul 05567, Republic of Korea (J.S.H.); (G.W.B.)
| | - Jee Sun Hwang
- Department of R&D, Unimed Pharmaceuticals Inc., Unimed Bldg., Seoul 05567, Republic of Korea (J.S.H.); (G.W.B.)
| | - Gun Won Bae
- Department of R&D, Unimed Pharmaceuticals Inc., Unimed Bldg., Seoul 05567, Republic of Korea (J.S.H.); (G.W.B.)
| | - Keun-Hang Susan Yang
- Biological Sciences Program, Schmid College of Science and Technology, Chapman University, Orange, CA 92866, USA
- Institute for Earth, Computing, Human and Observing (ECHO), Chapman University, Orange, CA 92866, USA
| | - Insop Shim
- Department of Physiology, College of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
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Zhu Y, Yin L, Liu Q, Guan Y, Nie S, Zhu Y, Mo F. Tryptophan metabolic pathway plays a key role in the stress-induced emotional eating. Curr Res Food Sci 2024; 8:100754. [PMID: 38736909 PMCID: PMC11087915 DOI: 10.1016/j.crfs.2024.100754] [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: 01/25/2024] [Revised: 04/20/2024] [Accepted: 04/25/2024] [Indexed: 05/14/2024] Open
Abstract
Chronic stress disrupts the emotional and energetic balance, which may lead to abnormal behaviors such as binge eating. This overeating behavior alleviating the negative emotions is called emotional eating, which may exacerbate emotional instability and lead to obesity. It is a complex and multifaceted process that has not yet been fully understood. In this study, we constructed an animal model of chronic mild stress (CMS)-induced emotional eating. The emotional eating mice were treated with tryptophan for 21 days to reveal the key role of tryptophan. Furthermore, serum-targeted metabolomics, immunohistochemical staining, qPCR and ELISA were performed. The results showed that CMS led to the binge eating behavior, accompanied by the disturbed intestinal tryptophan-derived serotonin (5-hydroxytryptamine; 5-HT) metabolic pathways. Then we found that tryptophan supplementation improved depression and anxiety-like behaviors as well as abnormal eating behaviors. Tryptophan supplementation improved the abnormal expression of appetite regulators (e.g., AgRP, OX1R, MC4R), and tryptophan supplementation also increased the tryptophan hydroxylase 2 (tph2) and 5-HT receptors in the hypothalamus of CMS mice, which indicates that the 5-HT metabolic pathway influences feeding behavior. In vitro experiments confirmed that 5-HT supplementation ameliorated corticosterone-induced aberrant expression of appetite regulators, such as AgRP and OX1R, in the hypothalamic cell line. In conclusion, our findings revealed that the tryptophan-derived 5-HT pathway plays an important role in emotional eating, especially in providing targeted therapy for stress-induced obesity.
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Affiliation(s)
- Ying Zhu
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
- Department of Naval Nutrition and Food Hygiene, Naval Medical University, Shanghai 200433, China
| | - Lifeng Yin
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
- Department of Naval Nutrition and Food Hygiene, Naval Medical University, Shanghai 200433, China
| | - Qing Liu
- Department of Naval Nutrition and Food Hygiene, Naval Medical University, Shanghai 200433, China
- Shanghai Key Laboratory of Nautical Medicine and Translation of Drugs and Medical Devices, The First Affiliated Hospital of Naval Medical University, Shanghai 200433, China
| | - Yaoxing Guan
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
- Department of Naval Nutrition and Food Hygiene, Naval Medical University, Shanghai 200433, China
| | - Shuang Nie
- Department of Naval Nutrition and Food Hygiene, Naval Medical University, Shanghai 200433, China
- Shanghai Key Laboratory of Nautical Medicine and Translation of Drugs and Medical Devices, The First Affiliated Hospital of Naval Medical University, Shanghai 200433, China
| | - Yongheng Zhu
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Fengfeng Mo
- Department of Naval Nutrition and Food Hygiene, Naval Medical University, Shanghai 200433, China
- Shanghai Key Laboratory of Nautical Medicine and Translation of Drugs and Medical Devices, The First Affiliated Hospital of Naval Medical University, Shanghai 200433, China
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Ben-Azu B, Moke EG, Chris-Ozoko LE, Jaiyeoba-Ojigho EJ, Adebayo OG, Ajayi AM, Oyovwi MO, Odjugo G, Omozojie VI, Ejomafuwe G, Onike N, Eneni AEO, Ichipi-Ifukor CP, Achuba IF. Diosgenin alleviates alcohol-mediated escalation of social defeat stress and the neurobiological sequalae. Psychopharmacology (Berl) 2024; 241:785-803. [PMID: 38311692 DOI: 10.1007/s00213-023-06509-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Accepted: 11/15/2023] [Indexed: 02/06/2024]
Abstract
RATIONALE Emerging evidence indicates that persistent alcohol consumption escalates psychosocial trauma achieved by social defeat stress (SDS)-induced neurobiological changes and behavioral outcomes. Treatment with compounds with neuroprotective functions is believed to reverse ethanol (EtOH)-aggravated SDS-induced behavioral impairments. OBJECTIVES We investigated the outcomes of diosgenin treatment, a phytosteroidal sapogenin in mice co-exposed to repeated SDS and EtOH administration. METHODS During a period of 14 days, SDS male mice were repeatedly administered EtOH (20%, 10 mL/kg) orally from days 8-14 (n = 9). Within days 1-14, SDS mice fed with EtOH were simultaneously treated with diosgenin (25 and 50 mg/kg) or fluoxetine (10 mg/kg) by oral gavage. Locomotor, cognitive-, depressive-, and anxiety-like behaviors were assessed. Adrenal weight, serum glucose, and corticosterone levels were assayed. Brain markers of oxido-inflammatory, neurochemical levels, monoamine oxidase-B, and acetylcholinesterase activities were measured in the striatum, prefrontal cortex, and hippocampus. RESULTS The anxiety-like behavior, depression, low stress resilience, social, and spatial/non-spatial memory decline exhibited by SDS mice exposed to repeated EtOH administration were alleviated by diosgenin (25 and 50 mg/kg) and fluoxetine, illustrated by increased dopamine and serotonin concentrations and reduced monoamine oxidase-B and acetylcholinesterase activities in the prefrontal cortex, hippocampus, and striatum. Diosgenin attenuated SDS + EtOH interaction induced corticosterone release and adrenal hypertrophy, accompanied by reduced TNF-α, IL-6, malondialdehyde, and nitrite levels in the striatum, prefrontal cortex, and hippocampus. Diosgenin increased glutathione, superoxide dismutase, and catalase levels in SDS + EtOH-exposed mice. CONCLUSIONS Our data suggest that diosgenin reverses SDS + EtOH interaction-induced behavioral changes via normalization of hypothalamic-pituitary-adrenal axis, neurochemical neurotransmissions, and inhibition of oxidative and inflammatory mediators in mice brains.
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Affiliation(s)
- Benneth Ben-Azu
- DELSU Joint Canada-Israel Neuroscience and Biopsychiatry Laboratory, Department of Pharmacology, Faculty of Basic Medical Sciences, College of Health Sciences, Delta State University, Abraka, Nigeria.
| | - Emuesiri Goodies Moke
- DELSU Joint Canada-Israel Neuroscience and Biopsychiatry Laboratory, Department of Pharmacology, Faculty of Basic Medical Sciences, College of Health Sciences, Delta State University, Abraka, Nigeria
| | - Lilian E Chris-Ozoko
- Department of Anatomy, Faculty of Basic Medical Sciences, College of Health Sciences, Delta State University, Abraka, Delta State, Nigeria
| | - Efe J Jaiyeoba-Ojigho
- Department of Anatomy, Faculty of Basic Medical Sciences, College of Health Sciences, Delta State University, Abraka, Delta State, Nigeria
| | - Olusegun G Adebayo
- DELSU Joint Canada-Israel Neuroscience and Biopsychiatry Laboratory, Department of Pharmacology, Faculty of Basic Medical Sciences, College of Health Sciences, Delta State University, Abraka, Nigeria
- Department of Physiology, Faculty of Basic Medical Sciences, Neurophysiology Unit, PAMO University of Medical Sciences, River State, Port-Harcourt, Nigeria
| | - Abayomi Mayowa Ajayi
- Department of Pharmacology and Therapeutics, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria
| | - Mega O Oyovwi
- Department of Basic Medical Science, Achievers University, Owo, Ondo State, Nigeria
| | - Gideon Odjugo
- DELSU Joint Canada-Israel Neuroscience and Biopsychiatry Laboratory, Department of Pharmacology, Faculty of Basic Medical Sciences, College of Health Sciences, Delta State University, Abraka, Nigeria
| | - Vincent I Omozojie
- DELSU Joint Canada-Israel Neuroscience and Biopsychiatry Laboratory, Department of Pharmacology, Faculty of Basic Medical Sciences, College of Health Sciences, Delta State University, Abraka, Nigeria
| | - Goddey Ejomafuwe
- DELSU Joint Canada-Israel Neuroscience and Biopsychiatry Laboratory, Department of Pharmacology, Faculty of Basic Medical Sciences, College of Health Sciences, Delta State University, Abraka, Nigeria
| | - Nzubechukwu Onike
- DELSU Joint Canada-Israel Neuroscience and Biopsychiatry Laboratory, Department of Pharmacology, Faculty of Basic Medical Sciences, College of Health Sciences, Delta State University, Abraka, Nigeria
| | - Aya-Ebi O Eneni
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Delta State University, Abraka, Delta State, Nigeria
| | | | - Ifeakachuku F Achuba
- Department of Biochemistry, Faculty of Sciences, Delta State University, Abraka, Delta State, Nigeria
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Hoke MK, Long AM. Human biology and the study of precarity: How the intersection of uncertainty and inequality is taking us to new extremes. Am J Hum Biol 2024; 36:e24018. [PMID: 38053455 DOI: 10.1002/ajhb.24018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 10/31/2023] [Accepted: 11/03/2023] [Indexed: 12/07/2023] Open
Abstract
Inequality represents an extreme environment to which humans must respond. One phenomenon that contributes to this growing extreme is precarity or the intersection of uncertainty and some form of inequality. While precarity has an important intellectual history in the fields of sociology and sociocultural anthropology, it has not been well studied in the field of human biology. Rather human biologists have engaged with the study of closely related concepts such as uncertainty and resource insecurity. In this article, we propose that human biology take on the study of precarity as a novel way of investigating inequality. We first provide a brief intellectual history of precarity which is followed by a review of research on uncertainty and resource security in human biology which, while not exhaustive, illustrates some key gaps that precarity may aid us in addressing. We then review some of the pathways through which precarity comes to affect human biology and health and some of the evidence for why the unpredictable nature of precarity may make it a unique physiological stress. A case study based on research in Nuñoa, Peru provides an important example of how precarity can elucidate the influences of health in an extreme setting, albeit with insights that apply more broadly. We conclude that precarity holds important potential for the study of human biology, including helping us more effectively operationalize and study uncertainty, encouraging us to explore the predictability of resources and stressors, and reminding us to think about the intersectional nature of stressors.
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Affiliation(s)
- Morgan K Hoke
- Department of Anthropology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
- Carolina Population Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Anneliese M Long
- Department of Anthropology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
- Carolina Population Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
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Zhang H, Wang M, Zhao X, Wang Y, Chen X, Su J. Role of stress in skin diseases: A neuroendocrine-immune interaction view. Brain Behav Immun 2024; 116:286-302. [PMID: 38128623 DOI: 10.1016/j.bbi.2023.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 10/16/2023] [Accepted: 12/04/2023] [Indexed: 12/23/2023] Open
Abstract
Psychological stress is a crucial factor in the development of many skin diseases, and the stigma caused by skin disorders may further increase the psychological burden, forming a vicious cycle of psychological stress leading to skin diseases. Therefore, understanding the relationship between stress and skin diseases is necessary. The skin, as the vital interface with the external environment, possesses its own complex immune system, and the neuroendocrine system plays a central role in the stress response of the body. Stress-induced alterations in the immune system can also disrupt the delicate balance of immune cells and inflammatory mediators in the skin, leading to immune dysregulation and increased susceptibility to various skin diseases. Stress can also affect the skin barrier function, impair wound healing, and promote the release of pro-inflammatory cytokines, thereby exacerbating existing skin diseases such as psoriasis, atopic dermatitis, acne, and urticaria. In the present review, we explored the intricate relationship between stress and skin diseases from a neuroendocrine-immune interaction perspective. We explored the occurrence and development of skin diseases in the context of stress, the stress models for skin diseases, the impact of stress on skin function and diseases, and relevant epidemiological studies and clinical trials. Understanding the relationship between stress and skin diseases from a neuroendocrine-immune interaction perspective provides a comprehensive framework for targeted interventions and new insights into the diagnosis and treatment of skin diseases.
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Affiliation(s)
- Hanyi Zhang
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China; Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Central South University, Changsha, China; Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center of Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China; National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, China
| | - Mi Wang
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China; Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Central South University, Changsha, China; Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center of Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China; National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, China; Department of Mental Health Center, Xiangya Hospital, Central South University, Changsha, China
| | - Xue Zhao
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China; Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Central South University, Changsha, China; Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center of Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China; National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, China
| | - Yujie Wang
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China; Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Central South University, Changsha, China; Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center of Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China; National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, China
| | - Xiang Chen
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China; Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Central South University, Changsha, China; Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center of Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China; National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, China.
| | - Juan Su
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China; Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Central South University, Changsha, China; Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center of Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China; National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, China.
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8
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Suk FM, Hsu FY, Hsu MH, Chiu WC, Fang CC, Chen TL, Liao YJ. Treatment with a new barbituric acid derivative suppresses diet-induced metabolic dysfunction and non-alcoholic fatty liver disease in mice. Life Sci 2024; 336:122327. [PMID: 38061536 DOI: 10.1016/j.lfs.2023.122327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 11/21/2023] [Accepted: 11/30/2023] [Indexed: 12/24/2023]
Abstract
INTRODUCTION Nonalcoholic fatty liver disease (NAFLD) is the most common chronic liver disease, often accompanied by obesity, diabetes, and increased risks of depression and anxiety. Currently, there are no FDA-approved drugs to treat NAFLD and its related systemic symptoms. Previously, we identified a new barbituric acid derivative (BA-5) that expressed effectiveness against fibrosis and drug-resistant hepatocellular carcinoma. AIMS This study investigated the potential of BA-5 against high-fat diet (HFD)-induced NAFLD and mood disorders in mice. MAIN METHODS Six-weeks-old male C57BL/6 mice were fed with a 45 % HFD for 8 weeks to induce NAFLD and associated metabolic disorders. Mice were treated with a BA-5 and the therapeutic effects and the underlying molecular mechanisms were investigated. KEY FINDINGS Administration of BA-5 significantly reduced serum levels of alanine aminotransferase (ALT), low-density lipoprotein (LDL), fatty acids (FA), and triglycerides (TG) in HFD-fed mice. BA-5 treatment decreased expressions of hepatic lipogenesis-related markers (acetyl-CoA carboxylase (ACC), fatty acid synthase (FAS), and ATP-citrate lyase (ACLY)), increased fatty acid oxidation markers (carnitine palmitoyltransferase 1A (CPT1A) and acyl-CoA oxidase 1 (ACOX1)), and attenuated hepatic fat accumulation in HFD-fed mice. Moreover, HFD-induced adipocyte size enlargement and activation of lipolysis markers such as phosphorylated (p)-hormone-sensitive lipase (HSL) 565, p-HSL 660, and perilipin were inhibited in BA-5-treated mice. Notably, HFD-induced anxiety- and depression-like behaviors significantly improved in the BA-5 treated group through enhanced anti-inflammatory responses in the hippocampus. SIGNIFICANCE This study provides new insights into clinical therapeutic strategies of barbituric acid derivatives for HFD-induced NAFLD and associated mood disturbances.
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Affiliation(s)
- Fat-Moon Suk
- Division of Gastroenterology, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan; Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Fang-Yu Hsu
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Shuang-Ho Campus, New Taipei City 23561, Taiwan
| | - Ming-Hua Hsu
- Department of Chemistry, National Changhua University of Education, Changhua 500, Taiwan
| | - Wan-Chun Chiu
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei 11031, Taiwan; Research Center of Geriatric Nutrition, College of Nutrition, Taipei Medical University, Taipei 110, Taiwan; Department of Nutrition, Wan Fang Hospital, Taipei Medical University, Taipei 116, Taiwan
| | - Cheng-Chieh Fang
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Shuang-Ho Campus, New Taipei City 23561, Taiwan
| | - Tzu-Lang Chen
- Department of Medical Education, Far Eastern Memorial Hospital, New Taipei City 220, Taiwan
| | - Yi-Jen Liao
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Shuang-Ho Campus, New Taipei City 23561, Taiwan; TMU Research Center for Digestive Medicine, Taipei Medical University, Taipei 11031, Taiwan.
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9
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Yang Y, Yang J, Ma T, Yang X, Yuan Y, Guo Y. The role and mechanism of TGF-β1 in the antidepressant-like effects of tetrahydrocurcumin. Eur J Pharmacol 2023; 959:176075. [PMID: 37802279 DOI: 10.1016/j.ejphar.2023.176075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 09/20/2023] [Accepted: 09/21/2023] [Indexed: 10/08/2023]
Abstract
Astrocytes and the activation of inflammatory factors are associated with depression. Tetrahydrocurcumin (THC), the principal metabolite of natural curcumin, is renowned for its anti-inflammatory properties. In this research, we explored the impact of THC on the expression of inflammatory factors, neurotrophins, and transforming growth factor β1 (TGF-β1) in the prefrontal cortex after chronic restraint stress (CRS) in mice and in lipopolysaccharide (LPS)-induced TNC1 astrocytes. Our findings indicated that THC mitigated the anxiety and depression-like behaviours observed in CRS mice. It also influenced the expression of TGF-β1, p-SMAD3/SMAD3, sirtuin 1 (SIRT1), brain-derived neurotrophic factor (BDNF), glial cell line-derived neurotrophic factor (GDNF), inducible nitric oxide synthase (iNOS), and tumour necrosis factor α (TNF-α). Specifically, THC augmented the expressions of TGF-β1, p-SMAD3/SMAD3, SIRT1, BDNF, and GDNF, whilst diminishing the expressions of iNOS and TNF-α in LPS-induced astrocytes. However, when pre-treated with SB431542, a TGF-β1 receptor inhibitor, it nullified the aforementioned effects of THC on astrocytes. Our results propose that THC delivers its anti-depressive effects through the activation of TGF-β1, enhancement of p-SMAD3/SMAD3 and SIRT1 expression, upregulation of BDNF and GDNF, and downregulation of iNOS and TNF-α. This research furnishes new perspectives on the anti-inflammatory mechanism that underpins the antidepressant-like impact of THC.
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Affiliation(s)
- Yan Yang
- Kunming Medical University, Kunming, China
| | | | | | - Xueke Yang
- Kunming Medical University, Kunming, China
| | - Yun Yuan
- Kunming Medical University, Kunming, China.
| | - Ying Guo
- Kunming Medical University, Kunming, China.
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10
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Jia W, Tang Q, Zou Y, Yang Y, Wu W, Xu W. Investigating the antidepressant effect of Ziyan green tea on chronic unpredictable mild stress mice through fecal metabolomics. Front Microbiol 2023; 14:1256142. [PMID: 37692389 PMCID: PMC10483239 DOI: 10.3389/fmicb.2023.1256142] [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: 07/10/2023] [Accepted: 08/09/2023] [Indexed: 09/12/2023] Open
Abstract
Introduction Some studies have shown the effectiveness of tea in reducing depression. Gut flora dysfunction is strongly associated with depression. The mechanism by which Ziyan green tea ameliorates depression is not clear. Methods In this study, we examined the impact of Ziyan green tea on mice exhibiting symptoms similar to depression. We specifically focused on the role of intestinal flora and its metabolites. We first established a chronic unpredictable mild stress (CUMS) mouse model to induce depressive symptoms and conducted behavioural tests, biochemical tests, and pathological tissue analysis. We also investigated gut microbiota changes by 16S rRNA sequencing and measured faecal metabolites in mice using UHPLC-MS/MS. Results The results showed that Ziyan green tea intervention improved depression-like behaviour, neurobiochemical factors, and reduced levels of pro-inflammatory factors in CUMS mice. Spearman's correlation analysis showed that different microbial communities (Corynebacterium, Faecalibaculum, Enterorhabdus, Desulfovibrio) correlation with differential metabolites (Cholic acid, Deoxycholic acid, etc.) and depression-related biochemical indicators (5-HT, DA, BDNF, IL-6, and TNF-α). Discussion In conclusion, our findings suggest that both low and high-dose interventions of Ziyan green tea have positive preventive effects on CUMS mice without dose dependence, partly because they mainly affect intestinal Purine Metabolism, Bile Acid Biosynthesis and Cysteine Metabolism in CUMS mice, thus stimulating brain 5-HT, DA and BDNF, and decreasing the inflammatory factors IL-6, TNF-α, activate the composition of intestinal flora, improve the intestinal flora environment and thus promote the production of intestinal metabolites, which can be used for depression treatment. It is suggested that Ziyan green tea may achieve an antidepressant effect through the gut-microbiota-brain axis.
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Affiliation(s)
- Wenbao Jia
- College of Horticulture, Tea Refining and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
- Tea Research Institute, Hunan Academy of Agricultural Sciences, Changsha, Hunan, China
| | - Qian Tang
- College of Horticulture, Tea Refining and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Yao Zou
- College of Horticulture, Tea Refining and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - Yang Yang
- Sichuan Yizhichun Tea Industry Co., Ltd., Muchuan, Sichuan, China
| | - Wenliang Wu
- Tea Research Institute, Hunan Academy of Agricultural Sciences, Changsha, Hunan, China
| | - Wei Xu
- College of Horticulture, Tea Refining and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
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11
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Bear T, Roy N, Dalziel J, Butts C, Coad J, Young W, Parkar SG, Hedderley D, Dinnan H, Martell S, Middlemiss-Kraak S, Gopal P. Anxiety-like Behavior in Female Sprague Dawley Rats Associated with Cecal Clostridiales. Microorganisms 2023; 11:1773. [PMID: 37512945 PMCID: PMC10386170 DOI: 10.3390/microorganisms11071773] [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: 05/04/2023] [Revised: 06/19/2023] [Accepted: 07/03/2023] [Indexed: 07/30/2023] Open
Abstract
The relationship between the microbiota profile and exposure to stress is not well understood. Therefore, we used a rat model of unpredictable chronic mild stress (UCMS) to investigate this relationship. Depressive-like behaviors were measured in Female Sprague Dawley rats using the sucrose preference test and the Porsolt swim test. Anxiety-like behaviors were measured with the light-dark box test. Fecal corticosterone, cecal microbiota (composition and organic acids), plasma gut permeability (lipopolysaccharide-binding protein, LBP) and plasma inflammation (12 cytokines) markers were measured. Atypical behaviors were observed in female rats following UCMS, but no depressive-like behaviors were observed. Circulating concentrations of cytokines granulocyte-macrophage colony-stimulating factor and cytokine-induced neutrophil chemoattractant 1 were higher in UCMS-exposed female rats; plasma LBP and cecal organic acid levels remained unchanged. Our results reflect a resilient and adaptive phenotype for female SD rats. The relative abundance of taxa from the Clostridiales order and Desulfovibrionaceae family did, however, correlate both positively and negatively with anxiety-like behaviors and plasma cytokine concentrations, regardless of UCMS exposure, supporting the brain-to-gut influence of mild anxiety with a microbiota profile that may involve inflammatory pathways.
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Affiliation(s)
- Tracey Bear
- The New Zealand Institute for Plant and Food Research Limited, Palmerston North 4410, New Zealand
- Riddet Institute, Massey University, Palmerston North 4442, New Zealand
- School of Food and Advanced Technology, Massey University, Palmerston North 4442, New Zealand
| | - Nicole Roy
- Riddet Institute, Massey University, Palmerston North 4442, New Zealand
- Department of Human Nutrition, Otago University, Dunedin 9016, New Zealand
- High-Value Nutrition National Science Challenge, Auckland 1145, New Zealand
| | - Julie Dalziel
- AgResearch Ltd., Grasslands Research Centre, Palmerston North 4442, New Zealand
| | - Chrissie Butts
- The New Zealand Institute for Plant and Food Research Limited, Palmerston North 4410, New Zealand
| | - Jane Coad
- School of Food and Advanced Technology, Massey University, Palmerston North 4442, New Zealand
| | - Wayne Young
- AgResearch Ltd., Grasslands Research Centre, Palmerston North 4442, New Zealand
| | - Shanthi G Parkar
- The New Zealand Institute for Plant and Food Research Limited, Palmerston North 4410, New Zealand
| | - Duncan Hedderley
- The New Zealand Institute for Plant and Food Research Limited, Palmerston North 4410, New Zealand
| | - Hannah Dinnan
- The New Zealand Institute for Plant and Food Research Limited, Palmerston North 4410, New Zealand
| | - Sheridan Martell
- The New Zealand Institute for Plant and Food Research Limited, Palmerston North 4410, New Zealand
| | - Susanne Middlemiss-Kraak
- The New Zealand Institute for Plant and Food Research Limited, Palmerston North 4410, New Zealand
| | - Pramod Gopal
- The New Zealand Institute for Plant and Food Research Limited, Palmerston North 4410, New Zealand
- Riddet Institute, Massey University, Palmerston North 4442, New Zealand
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12
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Jiao Y, Kang G, Pan P, Fan H, Li Q, Li X, Li J, Wang Y, Jia Y, Zhang L, Sun H, Ma X. Acetylcholine promotes chronic stress-induced lung adenocarcinoma progression via α5-nAChR/FHIT pathway. Cell Mol Life Sci 2023; 80:119. [PMID: 37029227 PMCID: PMC11072774 DOI: 10.1007/s00018-023-04742-7] [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: 11/14/2022] [Revised: 02/26/2023] [Accepted: 02/28/2023] [Indexed: 04/09/2023]
Abstract
Chronic stress significantly elevates the expression levels of various neurotransmitters in the tumour microenvironment, thereby promoting the cell growth and metastasis of lung adenocarcinoma (LUAD). However, the role of chronic stress in the progression of LUAD remains unclear. In this study, we found that chronic restraint stress increases the levels of the neurotransmitter acetylcholine (ACh), and the α5-nicotinic acetylcholine receptor (α5-nAChR) and decreased fragile histidine triad (FHIT) expression in vivo. Crucially, the increased ACh levels promoted LUAD cell migration and invasion via modulation of the α5-nAChR/DNA methyltransferase 1 (DNMT1)/FHIT axis. In a chronic unpredictable stress (CUMS) mouse model, chronic stress promotes tumour development, accompanied by changes in α5-nAChR, DNMT1, FHIT, and vimentin. Together, these findings reveal a novel chronic stress-mediated LUAD signalling pathway: chronic stress enforces lung adenocarcinoma cell invasion and migration via the ACh/α5-nAChR/FHIT axis, which could be a potential therapeutic target for chronic stress-related LUAD.
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Affiliation(s)
- Yang Jiao
- Research Center of Basic Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250013, People's Republic of China
- Research Center of Basic Medicine, Central Hospital Affiliated to Shandong First Medical University, Jinan, 250013, Shandong, People's Republic of China
| | - Guiyu Kang
- Department of Medical Laboratory, Weifang Medical University, Weifang, 261053, Shandong, People's Republic of China
| | - Pan Pan
- Research Center of Basic Medicine, Central Hospital Affiliated to Shandong First Medical University, Jinan, 250013, Shandong, People's Republic of China
| | - Huiping Fan
- Research Center of Basic Medicine, Central Hospital Affiliated to Shandong First Medical University, Jinan, 250013, Shandong, People's Republic of China
| | - Qiang Li
- Research Center of Basic Medicine, Central Hospital Affiliated to Shandong First Medical University, Jinan, 250013, Shandong, People's Republic of China
| | - Xiangying Li
- Research Center of Basic Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250013, People's Republic of China
| | - Jingtan Li
- Research Center of Basic Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250013, People's Republic of China
| | - Yan Wang
- Research Center of Basic Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250013, People's Republic of China
| | - Yanfei Jia
- Research Center of Basic Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250013, People's Republic of China
| | - Lulu Zhang
- Research Center of Basic Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250013, People's Republic of China
| | - Haiji Sun
- College of Life Science, Shandong Normal University, Shandong, 250014, People's Republic of China
- Shandong Intelligent Technology Innovation Center, Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Xiaoli Ma
- Research Center of Basic Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250013, People's Republic of China.
- Research Center of Basic Medicine, Central Hospital Affiliated to Shandong First Medical University, Jinan, 250013, Shandong, People's Republic of China.
- Department of Medical Laboratory, Weifang Medical University, Weifang, 261053, Shandong, People's Republic of China.
- Shandong Intelligent Technology Innovation Center, Central Hospital Affiliated to Shandong First Medical University, Jinan, China.
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13
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Carhart-Harris RL, Chandaria S, Erritzoe DE, Gazzaley A, Girn M, Kettner H, Mediano PAM, Nutt DJ, Rosas FE, Roseman L, Timmermann C, Weiss B, Zeifman RJ, Friston KJ. Canalization and plasticity in psychopathology. Neuropharmacology 2023; 226:109398. [PMID: 36584883 DOI: 10.1016/j.neuropharm.2022.109398] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 12/01/2022] [Accepted: 12/20/2022] [Indexed: 12/28/2022]
Abstract
This theoretical article revives a classical bridging construct, canalization, to describe a new model of a general factor of psychopathology. To achieve this, we have distinguished between two types of plasticity, an early one that we call 'TEMP' for 'Temperature or Entropy Mediated Plasticity', and another, we call 'canalization', which is close to Hebbian plasticity. These two forms of plasticity can be most easily distinguished by their relationship to 'precision' or inverse variance; TEMP relates to increased model variance or decreased precision, whereas the opposite is true for canalization. TEMP also subsumes increased learning rate, (Ising) temperature and entropy. Dictionary definitions of 'plasticity' describe it as the property of being easily shaped or molded; TEMP is the better match for this. Importantly, we propose that 'pathological' phenotypes develop via mechanisms of canalization or increased model precision, as a defensive response to adversity and associated distress or dysphoria. Our model states that canalization entrenches in psychopathology, narrowing the phenotypic state-space as the agent develops expertise in their pathology. We suggest that TEMP - combined with gently guiding psychological support - can counter canalization. We address questions of whether and when canalization is adaptive versus maladaptive, furnish our model with references to basic and human neuroscience, and offer concrete experiments and measures to test its main hypotheses and implications. This article is part of the Special Issue on "National Institutes of Health Psilocybin Research Speaker Series".
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Affiliation(s)
- R L Carhart-Harris
- Psychedelics Division - Neuroscape, Department of Neurology, University of California, San Francisco, USA; Centre for Psychedelic Research, Imperial College London, UK.
| | - S Chandaria
- Centre for Psychedelic Research, Imperial College London, UK; Centre for Eudaimonia and Human Flourishing, Linacre College, University of Oxford, UK; Institute of Philosophy, School of Advanced Study, University of London, UK
| | - D E Erritzoe
- Centre for Psychedelic Research, Imperial College London, UK; CNWL-Imperial Psychopharmacology and Psychedelic Research Clinic (CIPPRS), UK
| | - A Gazzaley
- Psychedelics Division - Neuroscape, Department of Neurology, University of California, San Francisco, USA
| | - M Girn
- Department of Neurology and Neurosurgery, Montreal Neurological Institute, McGill University, Montreal, QC, Canada
| | - H Kettner
- Psychedelics Division - Neuroscape, Department of Neurology, University of California, San Francisco, USA; Centre for Psychedelic Research, Imperial College London, UK
| | - P A M Mediano
- Department of Computing, Imperial College London, London, UK; Department of Psychology, University of Cambridge, UK
| | - D J Nutt
- Centre for Psychedelic Research, Imperial College London, UK
| | - F E Rosas
- Centre for Psychedelic Research, Imperial College London, UK; Centre for Eudaimonia and Human Flourishing, Linacre College, University of Oxford, UK; Department of Informatics, University of Sussex, UK; Centre for Complexity Science, Imperial College London, UK
| | - L Roseman
- Centre for Psychedelic Research, Imperial College London, UK; CNWL-Imperial Psychopharmacology and Psychedelic Research Clinic (CIPPRS), UK
| | - C Timmermann
- Centre for Psychedelic Research, Imperial College London, UK; CNWL-Imperial Psychopharmacology and Psychedelic Research Clinic (CIPPRS), UK
| | - B Weiss
- Centre for Psychedelic Research, Imperial College London, UK; CNWL-Imperial Psychopharmacology and Psychedelic Research Clinic (CIPPRS), UK
| | - R J Zeifman
- Centre for Psychedelic Research, Imperial College London, UK; NYU Langone Center for Psychedelic Medicine, NYU Grossman School of Medicine, USA
| | - K J Friston
- Wellcome Centre for Human Neuroimaging, University College London, UK
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14
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Sun Z, Lee-Sarwar K, Kelly RS, Lasky-Su JA, Litonjua AA, Weiss ST, Liu YY. Revealing the importance of prenatal gut microbiome in offspring neurodevelopment in humans. EBioMedicine 2023; 90:104491. [PMID: 36868051 PMCID: PMC9996363 DOI: 10.1016/j.ebiom.2023.104491] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 02/01/2023] [Accepted: 02/09/2023] [Indexed: 03/05/2023] Open
Abstract
BACKGROUND It has been widely recognized that a critical time window for neurodevelopment occurs in early life and the host's gut microbiome plays an important role in neurodevelopment. Following recent demonstrations that the maternal prenatal gut microbiome influences offspring brain development in murine models, we aim to explore whether the critical time window for the association between the gut microbiome and neurodevelopment is prenatal or postnatal for human. METHODS Here we leverage a large-scale human study and compare the associations between the gut microbiota and metabolites from mothers during pregnancy and their children with the children's neurodevelopment. Specifically, using multinomial regression integrated in Songbird, we assessed the discriminating power of the maternal prenatal and child gut microbiome for children's neurodevelopment at early life as measured by the Ages & Stages Questionnaires (ASQ). FINDINGS We show that the maternal prenatal gut microbiome is more relevant than the children's gut microbiome to the children's neurodevelopment in the first year of life (maximum Q2 = 0.212 and 0.096 separately using the taxa at the class level). Moreover, we found that Fusobacteriia is more associated with high fine motor skills in ASQ in the maternal prenatal gut microbiota but become more associated with low fine motor skills in the infant gut microbiota (rank = 0.084 and -0.047 separately), suggesting the roles of the same taxa with respect to neurodevelopment can be opposite at the two stages of fetal neurodevelopment. INTERPRETATION These findings shed light, especially in terms of timing, on potential therapeutic interventions to prevent neurodevelopmental disorders. FUNDING This work was supported by the National Institutes of Health (grant numbers: R01AI141529, R01HD093761, RF1AG067744, UH3OD023268, U19AI095219, U01HL089856, R01HL141826, K08HL148178, K01HL146980), and the Charles A. King Trust Postdoctoral Fellowship.
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Affiliation(s)
- Zheng Sun
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, 02115, USA
| | - Kathleen Lee-Sarwar
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, 02115, USA
| | - Rachel S Kelly
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, 02115, USA
| | - Jessica A Lasky-Su
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, 02115, USA
| | - Augusto A Litonjua
- Division of Pediatric Pulmonary Medicine, Department of Pediatrics, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Scott T Weiss
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, 02115, USA
| | - Yang-Yu Liu
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, 02115, USA; Center for Artificial Intelligence and Modeling, The Carl R. Woese Institute of Genomic Biology, University of Illinois at Urbana-Champaign, Champaign, 61801, USA.
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15
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Indole Acetic Acid Exerts Anti-Depressive Effects on an Animal Model of Chronic Mild Stress. Nutrients 2022; 14:nu14235019. [PMID: 36501051 PMCID: PMC9737131 DOI: 10.3390/nu14235019] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Revised: 10/28/2022] [Accepted: 11/22/2022] [Indexed: 11/29/2022] Open
Abstract
Indole acetic acid (IAA), an intestinal bacteria-derived tryptophan metabolite, has been detected at abnormal concentrations in the cerebrospinal fluid and urine of depressed individuals. The effects of such altered IAA concentrations on mood regulation are not known. A mouse model of unpredictable chronic mild stress (UCMS) was used to assess the effects of IAA administration (50 mg/kg). Treatment with IAA for 5 weeks attenuated depression and anxiety-like behaviours, improved hypothalamus-pituitary-adrenal axis dysfunction and increased brain-derived neurotrophic factor expression. IAA supplementation also enhanced the serotonin pathway in the brain and gut. UCMS caused an imbalance of microbial indole metabolites in the colon, whereas IAA treatment reversed this. However, IAA intake did not affect the concentrations of indoles in the brain. Intestinal bacteria in different sections of the gut were altered by IAA treatment, with the colon showing more changes than other segments. The gut microbiome in the colon had increased proportions of Ruminococcaceae UCG013, Ruminiclostridium 6, Prevotella, Alloprevotella and Bacteroides species, which can produce short-chain fatty acids and indole derivatives. Cumulatively, our study highlights the potential of IAA treatment to alleviate mood disorders and offers a theoretical basis for understanding the antidepressant effects of IAA.
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16
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Subramaniam S, Sabran MR, Stanslas J, Kirby BP. Effect of aflatoxin B1 exposure on the progression of depressive-like behavior in rats. Front Nutr 2022; 9:1032810. [PMID: 36466381 PMCID: PMC9712965 DOI: 10.3389/fnut.2022.1032810] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 11/02/2022] [Indexed: 07/20/2023] Open
Abstract
While it is well documented that aflatoxin B1 (AFB1); one of the most toxic food contaminants is linked to the development of depression. However, the mechanism on how it affects the gut and brain health leading to depressive-like behavior remains unclear. This study was conducted to determine the effect of AFB1 on the progression of depressive-like behavior. Thirty-two (n = 32) male Sprague Dawley rats were randomly allocated into four groups: control, low-dose (5 μg AFB1/kg), high-dose (25 μg AFB1/kg) and positive control group; exposed on chronic unpredictable mild stress (CUMS). After 4 weeks of exposure, sucrose preference test (SPT) and force swim test (FST) were used to measure behavioral despair. Fecal samples were selectively cultured to profile the bacteria. Body weight and relative organs weights were compared among groups. AFB1 and CUMS caused reduction in body weight and food intake as well as increased relative weight of adrenal glands, liver, and brain. Rats in AFB1 and CUMS groups had suppressed sucrose preference and prolonged immobility time in FST, wherein this could indicate anhedonia. Besides, fecal count of Lactobacillus spp. was significantly low following AFB1 exposure, with increasing count of Bifidobacterium spp, in comparison to the control. Indeed, further biochemical analysis and metagenomic approach are warranted to explore the underlying mechanisms on the role of gut microbiota dysbiosis and dysregulation of gut-brain axis due to AFB1 neurotoxicity on the progression of depressive-like behavior.
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Affiliation(s)
- Syarminie Subramaniam
- Department of Nutrition, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Mohd-Redzwan Sabran
- Department of Nutrition, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Johnson Stanslas
- Pharmacotherapeutics Unit, Department of Medicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Brian P. Kirby
- School of Pharmacy and Biomolecular Sciences, RCSI University of Medicine and Health Sciences, Dublin, Ireland
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17
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Akber U, Bong S, Park ZY, Park CS. Effects of cereblon on stress-activated redox proteins and core behavior. Brain Res 2022; 1793:148054. [PMID: 35973609 DOI: 10.1016/j.brainres.2022.148054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 08/04/2022] [Accepted: 08/11/2022] [Indexed: 11/19/2022]
Abstract
The mechanisms underlying the vulnerability and resilience of an individual to stress are only partly understood. Response to stress is determined by behavioral and biochemical changes in the brain. Chronic ultra-mild stress (CUMS) induces an anhedonic-like state in mice that resembles symptoms of human depression. This study reports the role of cereblon (CRBN) in regulating the metabolic and antioxidant status of neuronal tissues in the mouse model of CUMS. Intriguingly, Crbn-/- (KO) mice showed resilient responsiveness, both at the behavioral and proteomic levels. Several core behaviors were also differentially altered by CUMS in KO mice. Liquid chromatography with tandem mass spectrometry (LC-MS/MS)-based proteome analysis of whole brain lysate (WBL) showed an enriched chaperonic, metabolic, and antioxidant status in the brains of KO subjects, including several members of DNAJ chaperones, creatine kinase, quinone oxidoreductase, superoxide dismutase (SOD1), glutathione S-transferase Mu (GSTM), peroxiredoxin-6 (PRDX6), and thioredoxin. Pathological phosphorylation as characterized by aggregation of tau and α-synuclein (α-syn) was significantly reduced in the neuronal tissues of KO mouse model of CUMS as compared to wild type (WT) mice. Furthermore, significantly increased SOD1 activity and reduced lipid peroxidation were observed in Crbn-KO systems. Integrated signaling pathways were also identified in CRBN-specific sub-networks constructed from protein-protein interaction analysis by STRING. The present study highlights the roles of CRBN in regulating the stress response (SR) and reshaping metabolic status in the brains of mice exposed to CUMS. A better understanding of the molecular mechanisms of depression and neurodegeneration can improve the development of novel treatments.
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Affiliation(s)
- Uroos Akber
- Laboratory of Molecular Neurobiology, School of Life Sciences and Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
| | - Sunhwa Bong
- Laboratory of Functional and Medicinal Proteomics, School of Life Sciences and Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
| | - Zee-Yong Park
- Laboratory of Functional and Medicinal Proteomics, School of Life Sciences and Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
| | - Chul-Seung Park
- Laboratory of Molecular Neurobiology, School of Life Sciences and Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea.
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18
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Qiao Y, Li C, Zhang M, Zhang X, Wei L, Cao K, Zhang X, Bi H, Gao T. Effects of Tibetan medicine metacinnabar (β-HgS) combined with imipramine or sertraline on depression-like symptoms in mice. Front Pharmacol 2022; 13:971243. [PMID: 36120298 PMCID: PMC9478660 DOI: 10.3389/fphar.2022.971243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 08/05/2022] [Indexed: 12/04/2022] Open
Abstract
Depression is a common mood disorder that has exhibited an increased incidence rate worldwide, but the overall clinical efficacy of antidepressants remains unsatisfactory. In traditional Ayurveda and Tibetan medicines, β-HgS-containing medicines have been used to treat neurological diseases for thousands of years, and our previous study found that β-HgS ameliorated depression-like behaviors in chronic restraint stress (CRS)-treated or chronic unpredictable mild stress (CUMS)-treated mice. Hence, present study investigated the effects of β-HgS combined with the clinical first-line antidepressants, imipramine (IMI) and sertraline (SER), on depression-like symptoms in CRS- and CUMS-co-treated mice. Our results revealed that β-HgS promoted the antidepressant effect of SER on depression-like behavior in mice, and enhanced its effects on promoting glucocorticoid receptor (GR) expression and neuronal proliferation in key hippocampal subregions, as well as increasing interleukin 10 (IL-10) levels and decreasing malondialdehyde levels in the sera of stress-stimulated mice. As for IMI, β-HgS enhanced its effects on preventing atrophy and severe structural damage in the hippocampus, as well as in promoting hippocampal GR levels and neuronal proliferation and serum IL-10 and superoxide dismutase (SOD) levels. Additionally, combination therapy resulted in the increased diversity of important intestinal microbiota compared to that of monotherapy, which may help sustain the health of the digestive tract and reduce inflammation to further enhance the antidepressant effects of IMI and SER in mice.
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Affiliation(s)
- Yajun Qiao
- Department of Psychiatry, The People’s Hospital of Jiangmen, Southern Medical University, Jiangmen, China
- Qinghai Provincial Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation, Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining, China
- Department of Psychology, School of Public Health, Southern Medical University, Guangzhou, China
| | - Cen Li
- Qinghai Provincial Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation, Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining, China
- CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
| | - Ming Zhang
- Qinghai Provincial Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation, Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining, China
- CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
| | - Xingfang Zhang
- Qinghai Provincial Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation, Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining, China
- Medical College, Qinghai University, Xining, China
| | - Lixin Wei
- Qinghai Provincial Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation, Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining, China
- CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, China
- *Correspondence: Hongtao Bi, ; Lixin Wei, ; Tingting Gao,
| | - Keshen Cao
- Department of Psychiatry, The People’s Hospital of Jiangmen, Southern Medical University, Jiangmen, China
| | - Xiaoyuan Zhang
- Department of Psychology, School of Public Health, Southern Medical University, Guangzhou, China
| | - Hongtao Bi
- Qinghai Provincial Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation, Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining, China
- *Correspondence: Hongtao Bi, ; Lixin Wei, ; Tingting Gao,
| | - Tingting Gao
- Department of Psychiatry, The People’s Hospital of Jiangmen, Southern Medical University, Jiangmen, China
- Department of Psychology, School of Public Health, Southern Medical University, Guangzhou, China
- *Correspondence: Hongtao Bi, ; Lixin Wei, ; Tingting Gao,
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19
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Dandekar MP, Palepu MSK, Satti S, Jaiswal Y, Singh AA, Dash SP, Gajula SNR, Sonti R. Multi-strain Probiotic Formulation Reverses Maternal Separation and Chronic Unpredictable Mild Stress-Generated Anxiety- and Depression-like Phenotypes by Modulating Gut Microbiome-Brain Activity in Rats. ACS Chem Neurosci 2022; 13:1948-1965. [PMID: 35735411 DOI: 10.1021/acschemneuro.2c00143] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Depression is a debilitating mental disorder that affects >322 million people worldwide. Despite the availability of several antidepressant agents, many patients remain treatment refractory. A growing literature study has indicated the role of gut microbiota in neuropsychiatric disorders. Herein, we examined the psychobiotic-like activity of multi-strain probiotic formulation in maternal separation (MS) and chronic unpredictable mild stress (CUMS) models of anxiety- and depression-like phenotypes in Sprague-Dawley rats. Early- and late-life stress was employed in both male and female rats by exposing them to MS and CUMS. The multi-strain probiotic formulation (Cognisol) containing Bacillus coagulans Unique IS-2, Lactobacillus plantarum UBLP-40, Lactobacillus rhamnosus UBLR-58, Bifidobacterium lactis UBBLa-70, Bifidobacterium breve UBBr-01, and Bifidobacterium infantis UBBI-01 at a total strength of 10 billion cfu along with l-glutamine was administered for 6 weeks via drinking water. Neurobehavioral assessment was done using the forced swim test (FST), sucrose preference test (SPT), elevated plus maze (EPM), and open field test (OFT). Animals were sacrificed after behavioral assessment, and blood, brain, and intestine samples were collected to analyze the levels of cytokines, metabolites, and neurotransmitters and histology. Animals exposed to stress showed increased passivity, consumed less sucrose solution, and minimally explored the open arms in the FST, SPT, and EPM, respectively. Administration of multi-strain probiotics along with l-glutamine for 6 weeks ameliorated the behavioral abnormalities. The locomotor activity of animals in the OFT and their body weight remained unchanged across the groups. Cognisol treatment reversed the decreased BDNF and serotonin levels and increased CRP, TNF-α, and dopamine levels in the hippocampus and/or frontal cortex. Administration of Cognisol also restored the plasma levels of l-tryptophan, l-kynurenine, kynurenic-acid, and 3-hydroxyanthranilic acid; the Firmicutes-to-Bacteroides ratio; the levels of acetate, propionate, and butyrate in fecal samples; the villi/crypt ratio; and the goblet cell count, which manifested in the restoration of intestinal functions. We suggest that the multi-strain probiotic and glutamine formulation (Cognisol) ameliorated the MS + UCMS-generated anxiety- and depression-like phenotypes by reshaping the gut microbiome-brain activity in both sexes.
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Affiliation(s)
- Manoj P Dandekar
- Department of Biological Sciences, Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
| | - Mani Surya Kumar Palepu
- Department of Biological Sciences, Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
| | - Srilakshmi Satti
- Department of Biological Sciences, Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
| | - Yash Jaiswal
- Department of Biological Sciences, Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
| | - Aditya A Singh
- Department of Biological Sciences, Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
| | - Surya Prakash Dash
- Department of Biological Sciences, Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
| | - Siva Nageswara Rao Gajula
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
| | - Rajesh Sonti
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500037, India
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20
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Xiong LL, Mao ML, Shu QL. A preliminary study on the diversity of butyrate-producing bacteria in response to the treatment of depression with Xiaoyaosan. Lett Appl Microbiol 2022; 75:844-856. [PMID: 35575477 DOI: 10.1111/lam.13737] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 04/24/2022] [Accepted: 05/12/2022] [Indexed: 11/29/2022]
Abstract
Butyrate-producing bacteria generate butyrate, which has antidepressant effects. Xiaoyaosan (XYS), a traditional Chinese medicine (TCM) used to treat depression, may improve depression-like behaviour by modulating the gut microbiota. However, the functional groups and mechanisms of action in the XYS treatment of depression remain unknown. This study aimed to analyse with clone sequencing the changes in intestinal butyrate-producing bacteria in XYS-treated chronic unpredictable mild stress (CUMS) rats. We successfully established the XYS-treated CUMS rat model of depression. Rat faecal samples were collected before, during, and after the experiment, and butyryl-CoA:acetate CoA-transferase gene primers were selected for PCR amplification to determine the diversity of butyrate-producing bacteria. The results showed that XYS increased intestinal butyrate-producing bacterial diversity in CUMS rats regarding phylum and genus numbers; the number of phyla increased to two, distributed in Firmicutes and Bacteroides, and four genera were distributed in Eubacterium sp., Roseburia sp., Clostridium sp. and Bacteroides sp. Only one phylum and two genera were present in the model group without XYS treatment. Our findings indicate that XYS can improve depression-like behaviour by regulating intestinal butyrate-producing bacteria diversity, particularly Roseburia sp. and Eubacterium sp., thus providing new insights into the targeted regulation of the intestinal flora to treat depression.
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Affiliation(s)
- L L Xiong
- Jiangxi University of Traditional Chinese Medicine, College of Traditional Chinese Medicine, Nanchang City, China
| | - M L Mao
- Jiangxi University of Traditional Chinese Medicine, College of Traditional Chinese Medicine, Nanchang City, China
| | - Q L Shu
- Jiangxi University of Traditional Chinese Medicine, College of Traditional Chinese Medicine, Nanchang City, China
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21
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Yao H, Zhang D, Yu H, Shen H, Lan X, Liu H, Chen X, Wu X, Zhang G, Wang X. AMPAkine CX516 alleviated chronic ethanol exposure-induced neurodegeneration and depressive-like behavior in mice. Toxicol Appl Pharmacol 2022; 439:115924. [PMID: 35181401 DOI: 10.1016/j.taap.2022.115924] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 02/09/2022] [Accepted: 02/11/2022] [Indexed: 12/15/2022]
Abstract
Chronic ethanol exposure (CEE) is associated with greater neurodegenerative effects and an increased risk of depression disorder. The AMPAR is thought to be involved in depression and a reduction in its GluA1 subunit was observed in the mouse hippocampus after CEE. AMPAkines are positive allosteric modulators of the AMPA receptor and have improved depressive-like behavior. However, the role of AMPARs in CEE-induced depressive-like behavior is not clear. It is unclear whether AMPAkines, positive allosteric agonists of AMPARs, protect against ethanol-induced depression. We investigated the effects of CX516 on ethanol-induced depressive-like behavior in a mouse model. CX516 (5 mg/kg) administration alleviated 20% (m/V) ethanol-induced depressive-like behavior in mice. Furthermore, CX516 significantly diminished the inhibition of the ERK1/2-BDNF-TrkB pathway in the hippocampus of ethanol-exposed mice. In addition, CX516 attenuated the levels of pro-inflammatory (IL-6, IL-1β), apoptosis (BAX, BCL-2), and neurodegeneration (FJC) in the mouse hippocampus induced by CEE.
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Affiliation(s)
- Hui Yao
- Department of Forensic Pathology, School of Forensic Medicine, China Medical University, Shenyang, Liaoning 110122, PR China
| | - Dalin Zhang
- Department of Thyroid Surgery, the 1st Affiliated Hospital, China Medical University, Shenyang, Liaoning 110001, PR China
| | - Hao Yu
- Department of Forensic Pathology, School of Forensic Medicine, China Medical University, Shenyang, Liaoning 110122, PR China
| | - Hui Shen
- Department of Forensic Pathology, School of Forensic Medicine, China Medical University, Shenyang, Liaoning 110122, PR China
| | - Xinze Lan
- Department of Forensic Pathology, School of Forensic Medicine, China Medical University, Shenyang, Liaoning 110122, PR China
| | - Hao Liu
- Department of Forensic Pathology, School of Forensic Medicine, China Medical University, Shenyang, Liaoning 110122, PR China
| | - Xiaohuan Chen
- Department of Forensic Pathology, School of Forensic Medicine, China Medical University, Shenyang, Liaoning 110122, PR China
| | - Xu Wu
- Department of Forensic Pathology, School of Forensic Medicine, China Medical University, Shenyang, Liaoning 110122, PR China
| | - Guohua Zhang
- Department of Forensic Pathology, School of Forensic Medicine, China Medical University, Shenyang, Liaoning 110122, PR China.
| | - Xiaolong Wang
- Department of Forensic Pathology, School of Forensic Medicine, China Medical University, Shenyang, Liaoning 110122, PR China.
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22
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Gao K, Farzi A, Ke X, Yu Y, Chen C, Chen S, Yu T, Wang H, Li Y. Oral administration of Lactococcus lactis WHH2078 alleviates depressive and anxiety symptoms in mice with induced chronic stress. Food Funct 2022; 13:957-969. [PMID: 35006225 DOI: 10.1039/d1fo03723d] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Depression is a mood disorder with a high prevalence rate globally, which is associated with abnormalities in 5-hydroxytryptamine (5-HT) metabolism. Emerging evidence suggests that certain probiotics that modulate 5-HT metabolism confer beneficial effects on depression. In this study, in vitro enterochromaffin RIN14B cells were used for screening potential antidepressant probiotic Lactococcus lactis strains. The L. lactis strain WHH2078 increased to high levels the 5-HT precursor 5-hydroxytryptophan (5-HTP) and the expression of tryptophan hydroxylase 1 (Tph1), which converts tryptophan to 5-HTP in RIN14B cells. The oral administration of WHH2078 (1 × 109 CFU mL-1) in mice with induced chronic unpredictable mild stress (CUMS) for 5 weeks significantly ameliorated depressive and anxiety-like behaviors in the tail suspension test, forced swim test, sucrose preference test, and open field test. Besides, WHH2078 significantly reduced the serum corticosterone level and restored the central levels of 5-HT, 5-HTP, and brain-derived neurotrophic factor in CUMS-induced mice. Moreover, WHH2078 also reversed the 5-HTP levels in the serum and colon, accompanied by an upregulation in colonic Tph1 gene expression. Using 16S rRNA high-throughput sequencing of feces, WHH2078 was shown to improve the CUMS-induced gut microbial dysbiosis, through restoring alpha diversity and the abundances of Firmicutes and Bacteroidetes. In summary, these results indicate that WHH2078 can alleviate rodent depressive and anxiety-like behaviors in response to CUMS, which is associated with the improvement of 5-HT metabolism and modulation of the gut microbiome composition. Therefore, supplementation of the L. lactis strain WHH2078 with antidepressant properties may serve as a promising therapeutic strategy for chronic stress-induced depression.
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Affiliation(s)
- Kan Gao
- Key Laboratory of Food And Biological Engineering of Zhejiang Province, Hangzhou 310018, P.R. China. .,Research and Development Department, Hangzhou Wahaha Group Co., Ltd, Hangzhou 310018, P.R. China. .,College of Animal Science, MOE Key Laboratory of Molecular Animal Nutrition, Zhejiang University, Hangzhou 310058, P.R. China
| | - Aitak Farzi
- Division of Pharmacology, Otto Loewi Research Center (for Vascular Biology, Immunology and Inflammation), Medical University of Graz, 8010 Graz, Austria
| | - Xueqin Ke
- Key Laboratory of Food And Biological Engineering of Zhejiang Province, Hangzhou 310018, P.R. China. .,Research and Development Department, Hangzhou Wahaha Group Co., Ltd, Hangzhou 310018, P.R. China.
| | - Yunxia Yu
- Key Laboratory of Food And Biological Engineering of Zhejiang Province, Hangzhou 310018, P.R. China. .,Research and Development Department, Hangzhou Wahaha Group Co., Ltd, Hangzhou 310018, P.R. China.
| | - Cailin Chen
- Key Laboratory of Food And Biological Engineering of Zhejiang Province, Hangzhou 310018, P.R. China. .,Research and Development Department, Hangzhou Wahaha Group Co., Ltd, Hangzhou 310018, P.R. China.
| | - Su Chen
- Key Laboratory of Food And Biological Engineering of Zhejiang Province, Hangzhou 310018, P.R. China. .,Research and Development Department, Hangzhou Wahaha Group Co., Ltd, Hangzhou 310018, P.R. China.
| | - Tengfei Yu
- Key Laboratory of Food And Biological Engineering of Zhejiang Province, Hangzhou 310018, P.R. China. .,Research and Development Department, Hangzhou Wahaha Group Co., Ltd, Hangzhou 310018, P.R. China.
| | - Haifeng Wang
- College of Animal Science, MOE Key Laboratory of Molecular Animal Nutrition, Zhejiang University, Hangzhou 310058, P.R. China
| | - Yanjun Li
- Key Laboratory of Food And Biological Engineering of Zhejiang Province, Hangzhou 310018, P.R. China. .,Research and Development Department, Hangzhou Wahaha Group Co., Ltd, Hangzhou 310018, P.R. China. .,College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, P.R. China
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23
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Huang L, Lv X, Ze X, Ma Z, Zhang X, He R, Fan J, Zhang M, Sun B, Wang F, Liu H. Combined probiotics attenuate chronic unpredictable mild stress-induced depressive-like and anxiety-like behaviors in rats. Front Psychiatry 2022; 13:990465. [PMID: 36159940 PMCID: PMC9490273 DOI: 10.3389/fpsyt.2022.990465] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 08/16/2022] [Indexed: 11/23/2022] Open
Abstract
Increasing evidence indicated that probiotics can be effective in improving behaviors similar to depression and anxiety disorders. However, the underlying mechanisms remain unclear, as is the effects of single vs. combined probiotics on depression and anxiety. This study aimed to determine whether combined probiotics could attenuate depressive-like and anxiety-like behavior induced by chronic unpredictable mild stress (CUMS) and its potential mechanisms. Rats underwent CUMS treatment and then administered Lactobacillus rhamnosus HN001 (HN001) or Bifidobacterium animalis subsp. lactis HN019 (HN019), alone or in combination. Levels of neurotransmitters, inflammatory factors, and the gut microbiota were measured. HN001 and (or) HN019 treatment improved depressive-like and anxiety-like behavior in rats, including increased moving distance and exploratory behavior (p < 0.05). In addition, altered gut microbiota structure induced by CUMS was amended by HN001 and/or HN019 (p < 0.05). HN001 and/or HN019 intervention also remarkably normalized levels of 5-HT, DA, NE, HVA, DOPAC, HIAA, TNF-α, IL-6, IL-18 and IL-1β in CUMS rats (p < 0.05). Furthermore, the effects of combined probiotics on decreasing inflammation and improved gut microbiota (Chao1 index and ACE index, p < 0.05) were superior to the single probiotics. Moreover, spearman analysis showed a certain correlation between the different microbiota, such as Firmicutes, Bacteroidetes, Verrucomicrobias, Proteobacterias and Actinobacterias, and inflammation and neurotransmitters. These findings suggested that CUMS induced depressive and anxiety-like behaviors can be alleviated by the combination of probiotics, which was possibly associated with the alterations in the gut microbiota composition and increased neurotransmitters and decreased inflammatory factors.
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Affiliation(s)
- Li Huang
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Environment, Nutrition, and Public Health, Center for International Collaborative Research on Environment, Nutrition, and Public Health, Tianjin Medical University, Tianjin, China
| | - Xia Lv
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Environment, Nutrition, and Public Health, Center for International Collaborative Research on Environment, Nutrition, and Public Health, Tianjin Medical University, Tianjin, China
| | - Xiaolei Ze
- BYHEALTH Institute of Nutrition & Health, Guangzhou, China
| | - Zewei Ma
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Environment, Nutrition, and Public Health, Center for International Collaborative Research on Environment, Nutrition, and Public Health, Tianjin Medical University, Tianjin, China
| | - Xuguang Zhang
- BYHEALTH Institute of Nutrition & Health, Guangzhou, China
| | - Ruikun He
- BYHEALTH Institute of Nutrition & Health, Guangzhou, China
| | - Junting Fan
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Environment, Nutrition, and Public Health, Center for International Collaborative Research on Environment, Nutrition, and Public Health, Tianjin Medical University, Tianjin, China
| | - Meilin Zhang
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Environment, Nutrition, and Public Health, Center for International Collaborative Research on Environment, Nutrition, and Public Health, Tianjin Medical University, Tianjin, China
| | - Boran Sun
- Tianjin Key Laboratory of Environment, Nutrition, and Public Health, Center for International Collaborative Research on Environment, Nutrition, and Public Health, Tianjin Medical University, Tianjin, China.,Department of Epidemiology and Statistics, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Fang Wang
- Department of Pathogen Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Huan Liu
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Environment, Nutrition, and Public Health, Center for International Collaborative Research on Environment, Nutrition, and Public Health, Tianjin Medical University, Tianjin, China
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24
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Zhang Y, Huang J, Xiong Y, Zhang X, Lin Y, Liu Z. Jasmine Tea Attenuates Chronic Unpredictable Mild Stress-Induced Depressive-like Behavior in Rats via the Gut-Brain Axis. Nutrients 2021; 14:nu14010099. [PMID: 35010973 PMCID: PMC8746588 DOI: 10.3390/nu14010099] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/22/2021] [Accepted: 12/23/2021] [Indexed: 12/12/2022] Open
Abstract
The number of depressed people has increased worldwide. Dysfunction of the gut microbiota has been closely related to depression. The mechanism by which jasmine tea ameliorates depression via the brain-gut-microbiome (BGM) axis remains unclear. Here, the effects of jasmine tea on rats with depressive-like symptoms via the gut microbiome were investigated. We first established a chronic unpredictable mild stress (CUMS) rat model to induce depressive symptoms and measured the changes in depression-related indicators. Simultaneously, the changes in gut microbiota were investigated by 16S rRNA sequencing. Jasmine tea treatment improved depressive-like behaviors and neurotransmitters in CUMS rats. Jasmine tea increased the gut microbiota diversity and richness of depressed rats induced by CUMS. Spearman’s analysis showed correlations between the differential microbiota (Patescibacteria, Firmicutes, Bacteroidetes, Spirochaetes, Elusimicrobia, and Proteobacteria) and depressive-related indicators (BDNF, GLP-1, and 5-HT in the hippocampus and cerebral cortex). Combined with the correlation analysis of gut microbiota, the result indicated that jasmine tea could attenuate depression in rats via the brain- gut-microbiome axis.
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Affiliation(s)
- Yangbo Zhang
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410128, China; (Y.Z.); (J.H.); (Y.X.); (X.Z.); (Y.L.)
| | - Jianan Huang
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410128, China; (Y.Z.); (J.H.); (Y.X.); (X.Z.); (Y.L.)
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China
- Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China
| | - Yifan Xiong
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410128, China; (Y.Z.); (J.H.); (Y.X.); (X.Z.); (Y.L.)
| | - Xiangna Zhang
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410128, China; (Y.Z.); (J.H.); (Y.X.); (X.Z.); (Y.L.)
| | - Yong Lin
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410128, China; (Y.Z.); (J.H.); (Y.X.); (X.Z.); (Y.L.)
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China
| | - Zhonghua Liu
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410128, China; (Y.Z.); (J.H.); (Y.X.); (X.Z.); (Y.L.)
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China
- Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China
- Correspondence: ; Tel.: +86-0731-84635304
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25
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Effects of semi-purified diet on depressive behaviors in aged mice. Biochem Biophys Rep 2021; 28:101152. [PMID: 34703907 PMCID: PMC8521119 DOI: 10.1016/j.bbrep.2021.101152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/13/2021] [Accepted: 10/10/2021] [Indexed: 11/23/2022] Open
Abstract
Diet is a key modifiable factor influencing the composition of gut microbiota. There are two types of commercially available diets for experimental animals: non-purified and semi-purified diets. Non-purified diets are composed of complex ingredients from multiple sources, while semi-purified diets are formulated with refined ingredients. Accumulating evidence has demonstrated a link between the gut microbiota and depression, and feed ingredients may influence depressive physiology and behaviors. To test this hypothesis, we examined how chronic non-purified (CRF-1) and semi-purified (AIN-93G) diets affected phenotypes, including depressive behaviors, plasma corticosterone levels, and small-intestine microbiota in young (2 months old) and aged (22 months old) inbred C57BL/JJcl mice. In young mice, similar phenotypes were associated with non-purified and semi-purified diets. However, in aged mice, semi-purified diets increased depressive behaviors in the tail suspension (P < 0.05) and forced swimming tests (P < 0.01). The corticosterone levels were similar between the two diets under normal rearing conditions. However, immediately after exposure to the stressful conditions of the forced swimming test, the corticosterone levels in the aged mice fed the semi-purified diet were higher than those of mice fed the non-purified diet (P < 0.05). There were fewer Lactobacillales in the small intestines of aged mice fed the semi-purified diet compared to those fed the non-purified diet (P < 0.01). Further, α-diversity was lower in aged mice fed the semi-purified versus non-purified diet (P < 0.01). Our results indicate that host physiology and gut microbiota differed according to whether the aged mice were fed a non-purified or semi-purified diet. Specifically, those fed the semi-purified diet were more vulnerable to stress than age-matched mice fed the non-purified diet. Our findings indicate that researchers should consider the effects of feed ingredients on depressive physiology and behaviors, and select diets that are appropriate for their particular research design. Further, identification of the ingredients in non-purified diets could facilitate examination of the mechanisms by which gut microbiota composition might increase resistance to stress and depression.
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26
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Activation of 5-HT 1A receptor reduces abnormal emotionality in stress-maladaptive mice by alleviating decreased myelin protein in the ventral hippocampus. Neurochem Int 2021; 151:105213. [PMID: 34673172 DOI: 10.1016/j.neuint.2021.105213] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 10/03/2021] [Accepted: 10/18/2021] [Indexed: 11/21/2022]
Abstract
We previously reported that abnormal emotionality in stress-maladaptive mice was ameliorated by chronic treatment with flesinoxan, a 5-HT1A receptor agonist. Furthermore, the maintenance of hippocampal myelination appeared to contribute to the development of stress adaptation in mice. However, the effects of 5-HT1A receptor activation on myelination under the stress-maladaptive situations and the underlying mechanisms remain unknown. In the present study, we examined using flesinoxan whether activation of 5-HT1A receptor can reduce an abnormal emotional response by acting on oligodendrocytes to preserve myelin proteins in stress-maladaptive mice. Mice were exposed to repeated restraint stress for 4 h/day for 14 days as a stress-maladaptive model. Flesinoxan was given intraperitoneally immediately after the daily exposure to restraint stress. After the final exposure to restraint stress, the emotionality of mice was evaluated by the hole-board test. The expression levels of brain-derived neurotrophic factor (BDNF), phosphorylated-extracellular signal-regulated kinase (p-ERK), phosphorylated-cAMP response element-binding protein (p-CREB), myelin-associated glycoprotein (MAG), myelin basic protein (MBP) and oligodendrocyte transcription factor 2 (olig2) in the hippocampus was assessed by western blotting. Hippocampal oligodendrogenesis were examined by immunohistochemistry. Chronic treatment with flesinoxan suppressed the decrease in head-dipping behaviors in stress-maladaptive mice in the hole-board test. Under this condition, the decreases in MAG and MBP in the hippocampus recovered with increase in BDNF, p-ERK, p-CREB, and olig2. Furthermore, hippocampal oligodendrogenesis in stress-maladaptive mice was promoted by chronic treatment with flesinoxan. These findings suggest that 5-HT1A receptor activation may promote oligodendrogenesis and myelination via an ERK/CREB/BDNF signaling pathway in the hippocampus and reduces abnormal emotionality due to maladaptation to excessive stress.
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Leschik J, Lutz B, Gentile A. Stress-Related Dysfunction of Adult Hippocampal Neurogenesis-An Attempt for Understanding Resilience? Int J Mol Sci 2021; 22:7339. [PMID: 34298958 PMCID: PMC8305135 DOI: 10.3390/ijms22147339] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/02/2021] [Accepted: 07/05/2021] [Indexed: 12/16/2022] Open
Abstract
Newborn neurons in the adult hippocampus are regulated by many intrinsic and extrinsic cues. It is well accepted that elevated glucocorticoid levels lead to downregulation of adult neurogenesis, which this review discusses as one reason why psychiatric diseases, such as major depression, develop after long-term stress exposure. In reverse, adult neurogenesis has been suggested to protect against stress-induced major depression, and hence, could serve as a resilience mechanism. In this review, we will summarize current knowledge about the functional relation of adult neurogenesis and stress in health and disease. A special focus will lie on the mechanisms underlying the cascades of events from prolonged high glucocorticoid concentrations to reduced numbers of newborn neurons. In addition to neurotransmitter and neurotrophic factor dysregulation, these mechanisms include immunomodulatory pathways, as well as microbiota changes influencing the gut-brain axis. Finally, we discuss recent findings delineating the role of adult neurogenesis in stress resilience.
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Affiliation(s)
- Julia Leschik
- Institute of Physiological Chemistry, University Medical Center of the Johannes Gutenberg University Mainz, 55128 Mainz, Germany;
| | - Beat Lutz
- Institute of Physiological Chemistry, University Medical Center of the Johannes Gutenberg University Mainz, 55128 Mainz, Germany;
- Leibniz Institute for Resilience Research (LIR), 55122 Mainz, Germany
| | - Antonietta Gentile
- Synaptic Immunopathology Lab, IRCCS San Raffaele Pisana, 00166 Rome, Italy;
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Breton JM, Barraza M, Hu KY, Frias SJ, Long KL, Kaufer D. Juvenile exposure to acute traumatic stress leads to long-lasting alterations in grey matter myelination in adult female but not male rats. Neurobiol Stress 2021; 14:100319. [PMID: 33937444 PMCID: PMC8079662 DOI: 10.1016/j.ynstr.2021.100319] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 02/21/2021] [Accepted: 03/15/2021] [Indexed: 12/02/2022] Open
Abstract
Stress early in life can have a major impact on brain development, and there is increasing evidence that childhood stress confers vulnerability for later developing psychiatric disorders. In particular, during peri-adolescence, brain regions crucial for emotional regulation, such as the prefrontal cortex (PFC), amygdala (AMY) and hippocampus (HPC), are still developing and are highly sensitive to stress. Changes in myelin levels have been implicated in mental illnesses and stress effects on myelin and oligodendrocytes (OLs) are beginning to be explored as a novel and underappreciated mechanism underlying psychopathologies. Yet there is little research on the effects of acute stress on myelin during peri-adolescence, and even less work exploring sex-differences. Here, we used a rodent model to test the hypothesis that exposure to acute traumatic stress as a juvenile would induce changes in OLs and myelin content across limbic brain regions. Male and female juvenile rats underwent 3 h of restraint stress with exposure to a predator odor on postnatal day (p) 28. Acute stress induced a physiological response, increasing corticosterone release and reducing weight gain in stress-exposed animals. Brain sections containing the PFC, AMY and HPC were taken either in adolescence (p40), or in adulthood (p95) and stained for markers of OLs and myelin. We found that acute stress induced sex-specific changes in grey matter (GM) myelination and OLs in both the short- and long-term. Exposure to a single stressor as a juvenile increased GM myelin content in the AMY and HPC in p40 males, compared to the respective control group. At p40, corticosterone release during stress exposure was also positively correlated with GM myelin content in the AMY of male rats. Single exposure to juvenile stress also led to long-term effects exclusively in female rats. Compared to controls, stress-exposed females showed reduced GM myelin content in all three brain regions. Acute stress exposure decreased PFC and HPC OL density in p40 females, perhaps contributing towards this observed long-term decrease in myelin content. Overall, our findings suggest that the juvenile brain is vulnerable to exposure to a brief severe stressor. Exposure to a single short traumatic event during peri-adolescence produces long-lasting changes in GM myelin content in the adult brain of female, but not male, rats. These findings highlight myelin plasticity as a potential contributor to sex-specific sensitivity to perturbation during a critical window of development.
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Affiliation(s)
- Jocelyn M. Breton
- University of California, Berkeley, Helen Wills Neuroscience Institute, United States
| | - Matthew Barraza
- University of California, Berkeley, Molecular and Cellular Biology, United States
| | - Kelsey Y. Hu
- University of California, Berkeley, Molecular and Cellular Biology, United States
| | - Samantha Joy Frias
- University of California, Berkeley, Molecular and Cellular Biology, United States
| | - Kimberly L.P. Long
- University of California, Berkeley, Helen Wills Neuroscience Institute, United States
| | - Daniela Kaufer
- University of California, Berkeley, Helen Wills Neuroscience Institute, United States
- University of California, Berkeley, Integrative Biology, United States
- Canadian Institute for Advanced Research, Toronto, ON, M5G1M1, Canada
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Obeticholic Acid Inhibits Anxiety via Alleviating Gut Microbiota-Mediated Microglia Accumulation in the Brain of High-Fat High-Sugar Diet Mice. Nutrients 2021; 13:nu13030940. [PMID: 33803974 PMCID: PMC7999854 DOI: 10.3390/nu13030940] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 03/03/2021] [Accepted: 03/12/2021] [Indexed: 12/28/2022] Open
Abstract
Anxiety is one of the complications of metabolic disorders (MDs). Obeticholic acid (OCA), the bile acids (BAs) derivative, is a promising agent for improving MDs in association with gut dysbiosis. Yet, its protective effect on MDs-driven anxiety remains unknown. Here, we assessed the serum biochemical parameters and behavioral performance by open field and Morris water maze tests in HFHS diet-induced MDs mice after OCA intervention for nine and 18 weeks. Moreover, antibiotics intervention for microbial depletion was conducted simultaneously. We found that OCA treatment inhibited the initiation and progression of anxiety in HFHS diet-MDs mice via a microbiota–BAs–brain axis: OCA decreased the neuroinflammatory microglia and IL-1β expression in the hippocampus, reversed intestinal barrier dysfunction and serum proinflammatory LPS to a normal level, modified the microbial community, including the known anxiety-related Rikenellaceae and Alistipes, and improved the microbial metabolites especially the increased BAs in feces and circulation. Moreover, the OCA-reversed bile acid taurocholate linked disordered serum lipid metabolites and indole derivatives to anxiety as assessed by network analysis. Additionally, microbial depletion with antibiotics also improved the anxiety, microgliosis and BAs enrichment in the experimental MDs mice. Together, these findings provide microbiota–BAs–brain axis as a novel therapeutic target for MDs-associated neuropsychiatric disorders.
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