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Costa PCT, de Luna Freire MO, de Oliveira Coutinho D, Godet M, Magnani M, Antunes VR, de Souza EL, Vidal H, de Brito Alves JL. Nutraceuticals in the management of autonomic function and related disorders: A comprehensive review. Pharmacol Res 2024; 208:107368. [PMID: 39191337 DOI: 10.1016/j.phrs.2024.107368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Revised: 07/31/2024] [Accepted: 08/21/2024] [Indexed: 08/29/2024]
Abstract
Nutraceuticals have been described as phytocomplexes when derived from foods of plant origin or a pool of secondary metabolites when derived from foods of animal origin, which are concentrated and administered in an appropriate form and can promote beneficial health effects in the prevention/treatment of diseases. Considering that pharmaceutical medications can cause side effects, there is a growing interest in using nutraceuticals as an adjuvant therapeutic tool for several disorders involving autonomic dysfunction, such as obesity, atherosclerosis and other cardiometabolic diseases. This review summarizes and discusses the evidence from the literature on the effects of various nutraceuticals on autonomic control, addressing the gut microbiota modulation, production of secondary metabolites from bioactive compounds, and improvement of physical and chemical properties of cell membranes. Additionally, the safety of nutraceuticals and prospects are discussed. Probiotics, resveratrol, quercetin, curcumin, nitrate, inositol, L-carnosine, and n-3 polyunsaturated fatty acids (n-3 PUFAs) are among the nutraceuticals most studied to improve autonomic dysfunction in experimental animal models and clinical trials. Further human studies are needed to elucidate the effects of nutraceuticals formulated of multitarget compounds and their underlying mechanisms of action, which could benefit conditions involving autonomic dysfunction.
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Affiliation(s)
- Paulo César Trindade Costa
- Department of Nutrition, Federal University of Paraíba, João Pessoa, PB, Brazil; Laboratoire CarMeN, INSERM U.1060, INRAe U. 1397, Université Claude Bernard Lyon1, Pierre Bénite, France
| | | | | | - Murielle Godet
- Laboratoire CarMeN, INSERM U.1060, INRAe U. 1397, Université Claude Bernard Lyon1, Pierre Bénite, France
| | - Marciane Magnani
- Department of Food Engineering, Federal University of Paraíba, João Pessoa, PB, Brazil
| | - Vagner Roberto Antunes
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | | | - Hubert Vidal
- Laboratoire CarMeN, INSERM U.1060, INRAe U. 1397, Université Claude Bernard Lyon1, Pierre Bénite, France
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2
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Que M, Li S, Xia Q, Li X, Luo X, Zhan G, Luo A. Microbiota-gut-brain axis in perioperative neurocognitive and depressive disorders: Pathogenesis to treatment. Neurobiol Dis 2024; 200:106627. [PMID: 39111702 DOI: 10.1016/j.nbd.2024.106627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2024] [Revised: 08/01/2024] [Accepted: 08/02/2024] [Indexed: 08/28/2024] Open
Abstract
An increasing number of people undergo anesthesia and surgery. Perioperative neurocognitive and depressive disorders are common central nervous system complications with similar pathogeneses. These conditions pose a deleterious threat to human health and a significant societal burden. In recent years, numerous studies have focused on the role of the gut microbiota and its metabolites in the central nervous system via the gut-brain axis. Its involvement in perioperative neurocognitive and depressive disorders has attracted considerable attention. This review aimed to elucidate the role of the gut microbiota and its metabolites in the pathogenesis of perioperative neurocognitive and depressive disorders, as well as the value of targeted interventions and treatments.
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Affiliation(s)
- Mengxin Que
- Department of Anesthesiology and Pain Medicine, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health; Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shiyong Li
- Department of Anesthesiology and Pain Medicine, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health; Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qian Xia
- Department of Anesthesiology and Pain Medicine, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health; Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xing Li
- Department of Anesthesiology and Pain Medicine, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health; Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaoxiao Luo
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Gaofeng Zhan
- Department of Anesthesiology and Pain Medicine, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health; Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Ailin Luo
- Department of Anesthesiology and Pain Medicine, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health; Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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3
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Hasaniani N, Mostafa Rahimi S, Akbari M, Sadati F, Pournajaf A, Rostami-Mansoor S. The Role of Intestinal Microbiota and Probiotics Supplementation in Multiple Sclerosis Management. Neuroscience 2024; 551:31-42. [PMID: 38777135 DOI: 10.1016/j.neuroscience.2024.05.013] [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: 02/01/2024] [Revised: 04/26/2024] [Accepted: 05/11/2024] [Indexed: 05/25/2024]
Abstract
Multiple sclerosis (MS) is a neurological autoimmune disorder predominantly afflicting young adults. The etiology of MS is intricate, involving a variety of environmental and genetic factors. Current research increasingly focuses on the substantial contribution of gut microbiota in MS pathogenesis. The commensal microbiota resident within the intestinal milieu assumes a central role within the intricate network recognized as the gut-brain axis (GBA), wielding beneficial impact in neurological and psychological facets. As a result, the modulation of gut microbiota is considered a pivotal aspect in the management of neural disorders, including MS. Recent investigations have unveiled the possibility of using probiotic supplements as a promising strategy for exerting a positive impact on the course of MS. This therapeutic approach operates through several mechanisms, including the reinforcement of gut epithelial integrity, augmentation of the host's resistance against pathogenic microorganisms, and facilitation of mucosal immunomodulatory processes. The present study comprehensively explains the gut microbiome's profound influence on the central nervous system (CNS). It underscores the pivotal role played by probiotics in forming the immune system and modulating neurotransmitter function. Furthermore, the investigation elucidates various instances of probiotic utilization in MS patients, shedding light on the potential therapeutic advantages afforded by this intervention.
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Affiliation(s)
- Nima Hasaniani
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran; Department of Clinical Biochemistry, Faculty of Medicine, Babol University of Medical Sciences, Babol, Iran
| | - Seyed Mostafa Rahimi
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Marziyeh Akbari
- Department of Genetics, Faculty of Science, Shahrekord University, Shahrekord, Iran
| | - Fahimeh Sadati
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran
| | - Abazar Pournajaf
- Biomedical and Microbial Advanced Technologies (BMAT) Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Sahar Rostami-Mansoor
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.
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Komatsu Y, Miura H, Iwama Y, Urita Y. Beneficial Effect of Heat-Killed Lactic Acid Bacterium Lactobacillus johnsonii No. 1088 on Temporal Gastroesophageal Reflux-Related Symptoms in Healthy Volunteers: A Randomized, Placebo-Controlled, Double-Blind, Parallel-Group Study. Nutrients 2024; 16:1230. [PMID: 38674920 PMCID: PMC11054138 DOI: 10.3390/nu16081230] [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: 03/12/2024] [Revised: 04/12/2024] [Accepted: 04/19/2024] [Indexed: 04/28/2024] Open
Abstract
A randomized, placebo-controlled, double-blind, parallel-group clinical study was conducted to examine the effects of ingesting a heat-killed lactic acid bacterium, Lactobacillus johnsonii No. 1088 (LJ88) on temporal gastroesophageal reflux-related symptoms in healthy volunteers. A total of 120 healthy Japanese volunteers of both sexes, aged between 21 and 63 years, whose Frequency Scale for the Symptoms of Gastroesophageal Reflux Disease (FSSG) total score was 8 or greater, but who were not diagnosed with functional dyspepsia according to the Rome IV classification, were enrolled. They were randomly assigned to either the LJ88 or placebo group and instructed to ingest the test food (1 billion heat-killed LJ88 or placebo) once a day for six weeks. Gastroesophageal reflux-related symptoms were evaluated using FSSG scores as a primary endpoint. The Gastrointestinal Symptoms Rating Scale (GSRS), stomach state questionnaire, and serum gastrin concentration were used as secondary endpoints. In the FSSG evaluation, the heartburn score was significantly improved at 6 weeks in the LJ88 group compared to the placebo group. No severe adverse events related to the test food were observed. In conclusion, daily ingestion of heat-killed LJ88 improved temporal heartburn symptoms in non-diseased individuals.
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Affiliation(s)
| | | | - Yoshitaka Iwama
- Nihonbashi Cardiology Clinic, Chuo-ku, Tokyo 103-0001, Japan;
| | - Yoshihisa Urita
- Department of General Medicine and Emergency Care, Toho University School of Medicine, Ota-ku, Tokyo 143-8541, Japan;
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5
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Scuto M, Rampulla F, Reali GM, Spanò SM, Trovato Salinaro A, Calabrese V. Hormetic Nutrition and Redox Regulation in Gut-Brain Axis Disorders. Antioxidants (Basel) 2024; 13:484. [PMID: 38671931 PMCID: PMC11047582 DOI: 10.3390/antiox13040484] [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: 02/29/2024] [Revised: 04/09/2024] [Accepted: 04/15/2024] [Indexed: 04/28/2024] Open
Abstract
The antioxidant and anti-inflammatory effects of hormetic nutrition for enhancing stress resilience and overall human health have received much attention. Recently, the gut-brain axis has attracted prominent interest for preventing and therapeutically impacting neuropathologies and gastrointestinal diseases. Polyphenols and polyphenol-combined nanoparticles in synergy with probiotics have shown to improve gut bioavailability and blood-brain barrier (BBB) permeability, thus inhibiting the oxidative stress, metabolic dysfunction and inflammation linked to gut dysbiosis and ultimately the onset and progression of central nervous system (CNS) disorders. In accordance with hormesis, polyphenols display biphasic dose-response effects by activating at a low dose the Nrf2 pathway resulting in the upregulation of antioxidant vitagenes, as in the case of heme oxygenase-1 upregulated by hidrox® or curcumin and sirtuin-1 activated by resveratrol to inhibit reactive oxygen species (ROS) overproduction, microbiota dysfunction and neurotoxic damage. Importantly, modulation of the composition and function of the gut microbiota through polyphenols and/or probiotics enhances the abundance of beneficial bacteria and can prevent and treat Alzheimer's disease and other neurological disorders. Interestingly, dysregulation of the Nrf2 pathway in the gut and the brain can exacerbate selective susceptibility under neuroinflammatory conditions to CNS disorders due to the high vulnerability of vagal sensory neurons to oxidative stress. Herein, we aimed to discuss hormetic nutrients, including polyphenols and/or probiotics, targeting the Nrf2 pathway and vitagenes for the development of promising neuroprotective and therapeutic strategies to suppress oxidative stress, inflammation and microbiota deregulation, and consequently improve cognitive performance and brain health. In this review, we also explore interactions of the gut-brain axis based on sophisticated and cutting-edge technologies for novel anti-neuroinflammatory approaches and personalized nutritional therapies.
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Affiliation(s)
- Maria Scuto
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95124 Catania, Italy; (F.R.); (G.M.R.); (S.M.S.); (V.C.)
| | | | | | | | - Angela Trovato Salinaro
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95124 Catania, Italy; (F.R.); (G.M.R.); (S.M.S.); (V.C.)
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6
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Balasubramanian R, Schneider E, Gunnigle E, Cotter PD, Cryan JF. Fermented foods: Harnessing their potential to modulate the microbiota-gut-brain axis for mental health. Neurosci Biobehav Rev 2024; 158:105562. [PMID: 38278378 DOI: 10.1016/j.neubiorev.2024.105562] [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: 10/26/2023] [Revised: 01/18/2024] [Accepted: 01/21/2024] [Indexed: 01/28/2024]
Abstract
Over the past two decades, whole food supplementation strategies have been leveraged to target mental health. In addition, there has been increasing attention on the ability of gut microbes, so called psychobiotics, to positively impact behaviour though the microbiota-gut-brain axis. Fermented foods offer themselves as a combined whole food microbiota modulating intervention. Indeed, they contain potentially beneficial microbes, microbial metabolites and other bioactives, which are being harnessed to target the microbiota-gut-brain axis for positive benefits. This review highlights the diverse nature of fermented foods in terms of the raw materials used and type of fermentation employed, and summarises their potential to shape composition of the gut microbiota, the gut to brain communication pathways including the immune system and, ultimately, modulate the microbiota-gut-brain axis. Throughout, we identify knowledge gaps and challenges faced in designing human studies for investigating the mental health-promoting potential of individual fermented foods or components thereof. Importantly, we also suggest solutions that can advance understanding of the therapeutic merit of fermented foods to modulate the microbiota-gut-brain axis.
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Affiliation(s)
- Ramya Balasubramanian
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; Food Biosciences Department, Teagasc Food Research Centre, Moorepark, Fermoy, P61C996, County Cork, Ireland
| | | | - Eoin Gunnigle
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Paul D Cotter
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Food Biosciences Department, Teagasc Food Research Centre, Moorepark, Fermoy, P61C996, County Cork, Ireland.
| | - John F Cryan
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland.
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Jha P, Dangi N, Sharma S. Probiotics Show Promise as a Novel Natural Treatment for Neurological Disorders. Curr Pharm Biotechnol 2024; 25:799-806. [PMID: 37877144 DOI: 10.2174/0113892010261604230919170143] [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: 05/26/2023] [Revised: 08/17/2023] [Accepted: 08/21/2023] [Indexed: 10/26/2023]
Abstract
Probiotics are beneficial microorganisms shown to improve human health when consumed regularly and in sufficient quantities. Numerous health benefits can be attained by possessing important metabolites with nutritional and medicinal qualities. It has been shown through scientific research that these living microbial consortiums can influence a variety of mental health outcomes, including but not limited to anxiety, depression, cognitive processes, stress responses, and behavioral patterns. Selected strains of bacteria and yeasts control how the central nervous system (CNS) communicates with the gut-brain axis (GBA) through neuronal, humoral, and metabolic pathways to ease mood. Psychobiotics are substances that can affect the digestive system as well as mood and anxiety. There is scant evidence to validate the beneficial effects of psychiatric drugs in treating neurological diseases or disorders. The therapeutic method of research into psychobiotics opens exciting prospects for the future of the field of development. This review compiles the current evidence available in the scientific literature on the use of probiotics to influence neurological disorders.
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Affiliation(s)
- Preeti Jha
- Department of Biotechnology, Amity Institute of Biotechnology, Amity University, Jaipur, 303002, Rajasthan, India
| | - Neha Dangi
- Department of Pharmaceutical Sciences, Alwar Pharmacy College, M.I.A., Alwar, 301030, Rajasthan, India
| | - Shikha Sharma
- Department of Pharmaceutical Science, Lords University, Alwar, 301028, Rajasthan, India
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Kikuchi-Hayakawa H, Ishikawa H, Suda K, Gondo Y, Hirasawa G, Nakamura H, Takada M, Kawai M, Matsuda K. Effects of Lacticaseibacillus paracasei Strain Shirota on Daytime Performance in Healthy Office Workers: A Double-Blind, Randomized, Crossover, Placebo-Controlled Trial. Nutrients 2023; 15:5119. [PMID: 38140378 PMCID: PMC10745872 DOI: 10.3390/nu15245119] [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: 10/31/2023] [Revised: 12/12/2023] [Accepted: 12/14/2023] [Indexed: 12/24/2023] Open
Abstract
Lacticaseibacillus paracasei strain Shirota (LcS) modulates psychological homeostasis via the gut-brain axis. To explore the possible efficacy of LcS for improving daytime performance, we conducted a double-blind, randomized, crossover, placebo-controlled study of 12 healthy office workers with sleep complaints. The participants received fermented milk containing viable LcS (daily intake of 1 × 1011 colony-forming units) and non-fermented placebo milk, each for a 4-week period. In the last week of each period, the participants underwent assessments of their subjective mood and measurements of physiological state indicators via an electroencephalogram (EEG) and heart rate variability in the morning and afternoon. The attention score in the afternoon as assessed by the visual analog scale was higher in the LcS intake period than in the placebo intake period (p = 0.041). Theta power on EEG measured at rest or during an auditory oddball task in the afternoon was significantly lower in the LcS period than in the placebo period (p = 0.025 and 0.009, respectively). The change rate of theta power was associated with the change in attention score. Treatment-associated changes were also observed in heart rate and the sympathetic nerve activity index. These results indicate that LcS has possible efficacy for improving daytime performance, supported by observations of the related physiological state indicators.
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Affiliation(s)
| | - Hiroshi Ishikawa
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - Kazunori Suda
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
- Yakult Honsha European Research Center for Microbiology VOF, Technologiepark 94 bus 3, 9052 Ghent, Belgium
| | - Yusuke Gondo
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - Genki Hirasawa
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - Hayato Nakamura
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - Mai Takada
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - Mitsuhisa Kawai
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - Kazunori Matsuda
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
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9
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Carson MD, Westwater C, Novince CM. Adolescence and the Microbiome: Implications for Healthy Growth and Maturation. THE AMERICAN JOURNAL OF PATHOLOGY 2023; 193:1900-1909. [PMID: 37673331 PMCID: PMC10699129 DOI: 10.1016/j.ajpath.2023.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 07/19/2023] [Accepted: 07/26/2023] [Indexed: 09/08/2023]
Abstract
The gut microbiota was initially thought to develop into a stable, adult-like profile during early postnatal life. The formation of the gut microbiota during early life has been shown to contribute to healthy growth and has lifelong implications for host health. Adolescence, the developmental period between childhood and adulthood, is a critical window for healthy growth and maturation. The composition of the gut microbiota in adolescents is distinct from that of children and adults, which supports the premise that the gut microbiota continues to develop during adolescence toward an adult-like profile. Research has begun to shift its focus from understanding the gut microbiome at the extremes of the life span to evaluating the importance of the gut microbiome during adolescence and its role in healthy development. This article provides an overview of adolescent development, host-microbiota interactions, and experimental models used to discern effects of gut microbiota on health and disease. Herein, the role of the gut microbiota is reviewed as it relates to adolescent: i) brain development, cognition, and behavior; ii) metabolism and adiposity; and iii) skeletal growth and bone mass accrual. Future directions are addressed, including omics investigations defining mechanisms through which the gut microbiota influences adolescent development. Furthermore, we discuss advancing noninvasive interventions targeting the adolescent gut microbiota that could be employed to support healthy growth and maturation.
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Affiliation(s)
- Matthew D Carson
- Departments of Oral Health Sciences, College of Dental Medicine, Medical University of South Carolina, Charleston, South Carolina
| | - Caroline Westwater
- Departments of Oral Health Sciences, College of Dental Medicine, Medical University of South Carolina, Charleston, South Carolina; Department of Microbiology and Immunology, College of Medicine, Medical University of South Carolina, Charleston, South Carolina
| | - Chad M Novince
- Departments of Oral Health Sciences, College of Dental Medicine, Medical University of South Carolina, Charleston, South Carolina; Division of Endocrinology, Department of Pediatrics, College of Medicine, Medical University of South Carolina, Charleston, South Carolina; Division of Periodontics, Department of Stomatology, College of Dental Medicine, Medical University of South Carolina, Charleston, South Carolina.
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10
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Landini L, Dadson P, Gallo F, Honka MJ, Cena H. Microbiota in anorexia nervosa: potential for treatment. Nutr Res Rev 2023; 36:372-391. [PMID: 35875979 DOI: 10.1017/s0954422422000130] [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] [Indexed: 11/07/2022]
Abstract
Anorexia nervosa (AN) is characterised by the restriction of energy intake in relation to energy needs and a significantly lowered body weight than normally expected, coupled with an intense fear of gaining weight. Treatment of AN is currently based on psychological and refeeding approaches, but their efficacy remains limited since 40% of patients after 10 years of medical care still present symptoms of AN. The intestine hosts a large community of microorganisms, called the "microbiota", which live in symbiosis with the human host. The gut microbiota of a healthy human is dominated by bacteria from two phyla: Firmicutes and, majorly, Bacteroidetes. However, the proportion in their representation differs on an individual basis and depends on many external factors including medical treatment, geographical location and hereditary, immunological and lifestyle factors. Drastic changes in dietary intake may profoundly impact the composition of the gut microbiota, and the resulting dysbiosis may play a part in the onset and/or maintenance of comorbidities associated with AN, such as gastrointestinal disorders, anxiety and depression, as well as appetite dysregulation. Furthermore, studies have reported the presence of atypical intestinal microbial composition in patients with AN compared with healthy normal-weight controls. This review addresses the current knowledge about the role of the gut microbiota in the pathogenesis and treatment of AN. The review also focuses on the bidirectional interaction between the gastrointestinal tract and the central nervous system (microbiota-gut-brain axis), considering the potential use of the gut microbiota manipulation in the prevention and treatment of AN.
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Affiliation(s)
- Linda Landini
- S.S.D. Dietetics and Clinical Nutrition ASL 4 Chiavarese Liguria-Sestri Levante Hospital, Sestri Levante, Italy
| | - Prince Dadson
- Turku PET Centre, University of Turku, Turku, Finland
| | - Fabrizio Gallo
- S.S.D. Dietetics and Clinical Nutrition ASL 4 Chiavarese Liguria-Sestri Levante Hospital, Sestri Levante, Italy
| | | | - Hellas Cena
- Dietetics and Clinical Nutrition Laboratory, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy
- Clinical Nutrition and Dietetics Service, Unit of Internal Medicine and Endocrinology, ICS Maugeri IRCCS, Pavia, Italy
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11
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Patani A, Balram D, Yadav VK, Lian KY, Patel A, Sahoo DK. Harnessing the power of nutritional antioxidants against adrenal hormone imbalance-associated oxidative stress. Front Endocrinol (Lausanne) 2023; 14:1271521. [PMID: 38098868 PMCID: PMC10720671 DOI: 10.3389/fendo.2023.1271521] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 11/17/2023] [Indexed: 12/17/2023] Open
Abstract
Oxidative stress, resulting from dysregulation in the secretion of adrenal hormones, represents a major concern in human health. The present review comprehensively examines various categories of endocrine dysregulation within the adrenal glands, encompassing glucocorticoids, mineralocorticoids, and androgens. Additionally, a comprehensive account of adrenal hormone disorders, including adrenal insufficiency, Cushing's syndrome, and adrenal tumors, is presented, with particular emphasis on their intricate association with oxidative stress. The review also delves into an examination of various nutritional antioxidants, namely vitamin C, vitamin E, carotenoids, selenium, zinc, polyphenols, coenzyme Q10, and probiotics, and elucidates their role in mitigating the adverse effects of oxidative stress arising from imbalances in adrenal hormone levels. In conclusion, harnessing the power of nutritional antioxidants has the potential to help with oxidative stress caused by an imbalance in adrenal hormones. This could lead to new research and therapeutic interventions.
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Affiliation(s)
- Anil Patani
- Department of Biotechnology, Smt. S.S. Patel Nootan Science and Commerce College, Sankalchand Patel University, Visnagar, Gujarat, India
| | - Deepak Balram
- Department of Electrical Engineering, National Taipei University of Technology, Taipei, Taiwan
| | - Virendra Kumar Yadav
- Department of Life Sciences, Hemchandracharya North Gujarat University, Gujarat, India
| | - Kuang-Yow Lian
- Department of Electrical Engineering, National Taipei University of Technology, Taipei, Taiwan
| | - Ashish Patel
- Department of Life Sciences, Hemchandracharya North Gujarat University, Gujarat, India
| | - Dipak Kumar Sahoo
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, IA, United States
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12
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Lai TT, Liou CW, Tsai YH, Lin YY, Wu WL. Butterflies in the gut: the interplay between intestinal microbiota and stress. J Biomed Sci 2023; 30:92. [PMID: 38012609 PMCID: PMC10683179 DOI: 10.1186/s12929-023-00984-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 11/06/2023] [Indexed: 11/29/2023] Open
Abstract
Psychological stress is a global issue that affects at least one-third of the population worldwide and increases the risk of numerous psychiatric disorders. Accumulating evidence suggests that the gut and its inhabiting microbes may regulate stress and stress-associated behavioral abnormalities. Hence, the objective of this review is to explore the causal relationships between the gut microbiota, stress, and behavior. Dysbiosis of the microbiome after stress exposure indicated microbial adaption to stressors. Strikingly, the hyperactivated stress signaling found in microbiota-deficient rodents can be normalized by microbiota-based treatments, suggesting that gut microbiota can actively modify the stress response. Microbiota can regulate stress response via intestinal glucocorticoids or autonomic nervous system. Several studies suggest that gut bacteria are involved in the direct modulation of steroid synthesis and metabolism. This review provides recent discoveries on the pathways by which gut microbes affect stress signaling and brain circuits and ultimately impact the host's complex behavior.
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Affiliation(s)
- Tzu-Ting Lai
- Department of Physiology, College of Medicine, National Cheng Kung University, 1 University Rd., Tainan, 70101, Taiwan
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, 1 University Rd., Tainan, 70101, Taiwan
| | - Chia-Wei Liou
- Department of Physiology, College of Medicine, National Cheng Kung University, 1 University Rd., Tainan, 70101, Taiwan
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, 1 University Rd., Tainan, 70101, Taiwan
| | - Yu-Hsuan Tsai
- Department of Physiology, College of Medicine, National Cheng Kung University, 1 University Rd., Tainan, 70101, Taiwan
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, 1 University Rd., Tainan, 70101, Taiwan
| | - Yuan-Yuan Lin
- Department of Physiology, College of Medicine, National Cheng Kung University, 1 University Rd., Tainan, 70101, Taiwan
| | - Wei-Li Wu
- Department of Physiology, College of Medicine, National Cheng Kung University, 1 University Rd., Tainan, 70101, Taiwan.
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, 1 University Rd., Tainan, 70101, Taiwan.
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13
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Gil-Hernández E, Ruiz-González C, Rodriguez-Arrastia M, Ropero-Padilla C, Rueda-Ruzafa L, Sánchez-Labraca N, Roman P. Effect of gut microbiota modulation on sleep: a systematic review and meta-analysis of clinical trials. Nutr Rev 2023; 81:1556-1570. [PMID: 37023468 DOI: 10.1093/nutrit/nuad027] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023] Open
Abstract
CONTEXT A bidirectional relationship between gut microbiota (GM) and circadian rhythms has been proposed. OBJECTIVE The aim of this study was to analyze the efficacy of probiotic or prebiotic intervention on sleep quality and quantity. DATA SOURCES A systematic review and meta-analysis were conducted using the databases PubMed (MEDLINE), Embase, CINAHL, and Web of Science. Only randomized clinical trials written in English or Spanish were considered. DATA EXTRACTION The initial search resulted in 219 articles. Following the removal of duplicates and consideration of the selection criteria, 25 articles were selected for the systematic review and 18 articles for the meta-analysis. DATA ANALYSIS Microbiota modulation was not demonstrated to be associated with significant improvement in sleep quality in the present meta-analysis (P = 0.31). In terms of sleep duration, the meta-analysis found no improvement due to GM modulation (P = 0.43). CONCLUSION The results of this meta-analysis indicate that there is still insufficient evidence to support the relationship between GM modulation and improved sleep quality. While several studies assume that including probiotics in the diet will undoubtedly improve sleep quality, more research is needed to fully understand this phenomenon. SYSTEMATIC REVIEW REGISTRATION PROSPERO registration no. CRD42021245118.
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Affiliation(s)
| | | | - Miguel Rodriguez-Arrastia
- Faculty of Health Sciences, Department of Nursing Science, Physiotherapy and Medicine, University of Almeria, Almeria, Spain
| | - Carmen Ropero-Padilla
- Faculty of Health Sciences, Department of Nursing Science, Physiotherapy and Medicine, University of Almeria, Almeria, Spain
| | - Lola Rueda-Ruzafa
- Faculty of Health Sciences, Department of Nursing Science, Physiotherapy and Medicine, University of Almeria, Almeria, Spain
| | - Nuria Sánchez-Labraca
- Faculty of Health Sciences, Department of Nursing Science, Physiotherapy and Medicine, University of Almeria, Almeria, Spain
| | - Pablo Roman
- Faculty of Health Sciences, Department of Nursing Science, Physiotherapy and Medicine, University of Almeria, Almeria, Spain
- Health Research Center CEINSA, University of Almeria, Almeria, Spain
- Research Group CTS-1114 Health Sciences, University of Almeria, Almeria, Spain
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14
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Wang Y, Qiao M, Yao X, Feng Z, Hu R, Chen J, Liu L, Liu J, Sun Y, Guo Y. Lidocaine ameliorates intestinal barrier dysfunction in irritable bowel syndrome by modulating corticotropin-releasing hormone receptor 2. Neurogastroenterol Motil 2023; 35:e14677. [PMID: 37736684 DOI: 10.1111/nmo.14677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 07/11/2023] [Accepted: 08/28/2023] [Indexed: 09/23/2023]
Abstract
BACKGROUND Intestinal barrier dysfunction is a prevalent pathogenic factor underlying various disorders. Currently there is no effective resolution. Previous studies have reported the potential anti-inflammatory properties of lidocaine and its ability to alleviate visceral hypersensitivity in individuals with irritable bowel syndrome (IBS). Therefore, our study will further verify the effect of lidocaine on intestinal barrier dysfunction in IBS and investigate the underlying mechanisms. METHODS In this study, we investigated the role of lidocaine by assessing visceral hypersensitivity, body weight, inflammatory factors, fluorescein isothiocyanate-dextran 4000 (FD4) flux, tight junctions (TJs) and spleen and thymus index in rats subjected to water avoidance stress (WAS) to mimic intestinal barrier dysfunction in IBS with and without lidocaine. In vitro, we investigated the role of corticotropin-releasing hormone receptor 2 (CRHR2) in lidocaine-treated Caco2 cells using small interfering RNA (siRNA) targeting CRHR2. KEY RESULTS In WAS rats, lidocaine significantly restored weight loss, damaged TJs, spleen index and thymus index and inhibited abdominal hypersensitivity as well as blood levels of markers indicating intestinal permeability, such as diamine oxidase (DAO), D-lactic acid (D-Lac) and lipopolysaccharide (LPS). Consequently, the leakage of FD4 flux from intestine was significantly attenuated in lidocaine group, and levels of intestinal inflammatory factors (IL-1β, IFN-γ, TNF-α) were reduced. Interestingly, lidocaine significantly suppressed corticotropin-releasing hormone (CRH) levels in lamina propria cells, while the CRH receptor CRHR2 was upregulated in intestinal epithelial cells. In vitro, lidocaine enhanced the expression of CRHR2 on Caco-2 intestinal epithelial cells and restored disrupted TJs and the epithelial barrier caused by LPS. Conversely, these effects were diminished by a CRHR2 antagonist and siRNA-CRHR2, suggesting that the protective effect of lidocaine depends on CRHR2. CONCLUSIONS AND INFERENCES Lidocaine ameliorates intestinal barrier dysfunction in IBS by potentially modulating the expression of CRHR2 on intestinal epithelial cells.
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Affiliation(s)
- Yanrong Wang
- Department of Laboratory Medicine, Sichuan Tianfu New Area People's Hospital, Chengdu, China
| | - Mingbiao Qiao
- Department of Pathology, De Yang People's Hospital, Deyang, China
| | - Xue Yao
- Medical Research Center, The Affiliated Hospital of Southwest Jiaotong University, The Third People's Hospital of Chengdu, The Second Chengdu Hospital Affiliated to Chongqing Medical University, Chengdu, China
| | - Zhonghui Feng
- Center of Gastrointestinal and Minimally Invasive Surgery, Department of General Surgery, The Third People's Hospital of Chengdu, The Second Chengdu Hospital Affiliated to Chongqing Medical University, Chengdu, China
| | - Ruiqi Hu
- Department of Clinical Laboratory, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Jianguo Chen
- Department of Clinical Laboratory, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Lei Liu
- Medical Research Center, The Affiliated Hospital of Southwest Jiaotong University, The Third People's Hospital of Chengdu, The Second Chengdu Hospital Affiliated to Chongqing Medical University, Chengdu, China
| | - Jinbo Liu
- Department of Clinical Laboratory, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Yueshan Sun
- Medical Research Center, The Affiliated Hospital of Southwest Jiaotong University, The Third People's Hospital of Chengdu, The Second Chengdu Hospital Affiliated to Chongqing Medical University, Chengdu, China
| | - Yuanbiao Guo
- Medical Research Center, The Affiliated Hospital of Southwest Jiaotong University, The Third People's Hospital of Chengdu, The Second Chengdu Hospital Affiliated to Chongqing Medical University, Chengdu, China
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15
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Kamble SR, Dandekar MP. Implication of microbiota gut-brain axis in the manifestation of obsessive-compulsive disorder: Preclinical and clinical evidence. Eur J Pharmacol 2023; 957:176014. [PMID: 37619786 DOI: 10.1016/j.ejphar.2023.176014] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 08/21/2023] [Accepted: 08/22/2023] [Indexed: 08/26/2023]
Abstract
Recent research has highlighted the key role of gut microbiota in the development of psychiatric disorders. The adverse impact of stress, anxiety, and depression has been well documented on the commensal gut microflora. Thus, therapeutic benefits of gut microbiota-based interventions may not be avoided in central nervous system (CNS) disorders. In this review, we outline the current state of knowledge of gut microbiota with respect to obsessive-compulsive disorder (OCD). We discuss how OCD-generated changes corresponding to the key neurotransmitters, hypothalamic-pituitary-adrenal axis, and immunological and inflammatory pathways are connected with the modifications of the microbiota-gut-brain axis. Notably, administration of few probiotics such as Lactobacillus rhamnosus (ATCC 53103), Lactobacillus helveticus R0052, Bifidobacterium longum R0175, Saccharomyces boulardii, and Lactobacillus casei Shirota imparted positive effects in the management of OCD symptoms. Taken together, we suggest that the gut microbiota-directed therapeutics may open new treatment approaches for the management of OCD.
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Affiliation(s)
- Sonali R Kamble
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, India
| | - Manoj P Dandekar
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, India.
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16
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Lee Y, Nguyen TL, Roh H, Kim A, Park J, Lee JY, Kang YR, Kang H, Sohn MY, Park CI, Kim DH. Mechanisms underlying probiotic effects on neurotransmission and stress resilience in fish via transcriptomic profiling. FISH & SHELLFISH IMMUNOLOGY 2023; 141:109063. [PMID: 37678478 DOI: 10.1016/j.fsi.2023.109063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 09/03/2023] [Accepted: 09/04/2023] [Indexed: 09/09/2023]
Abstract
In recent years, studies have highlighted the significant impact of probiotic treatment on the central nervous system (brain) and stress regulation through the microbiota-gut-brain axis, yet there have been limited knowledge on this axis in fish. Therefore, this study aimed to enhance the current understanding of the mechanisms underlying probiotic effects on neurotransmission and stress alleviation in fish through transcriptomic profiling. In this study, olive flounders (Paralichthys olivaceus) were subjected to two trial setups: a 1-month lab-scale trial and a 6-month field-scale trial, with and without the probiotic strain Lactococcus lactis WFLU12. RNA-Seq analysis was performed using liver samples collected from fish at one-month post-feeding (mpf) in both trials. Additionally, fish growth was monitored monthly, and serological parameters were measured at one mpf in the field-scale experiment. The results of the lab-scale trial showed that probiotic administration significantly upregulated genes related to neurotransmission, such as htr3a, mao, ddc, ntsr1, and gfra2. These findings highlight the impact of probiotics on modulating neurotransmission via the microbiota-gut-brain axis. In the field-scale experiment, fish growth was significantly promoted and the sera levels of AST, LDH, and cortisol were significantly higher in the control group compared to the probiotics group. Furthermore, genes involved in stress responses (e.g. hsp70, hsp90B1, hspE1, prdx1, and gss) and transcriptional regulators (e.g. fos, dusp1, and dusp2) exhibited significant upregulation in the control group compared to the probiotics group, indicating that probiotic administration can alleviate stress levels in fish. Overall, this study provides valuable insights into the mechanisms underlying the beneficial effects of probiotics in fish, specifically regarding their impact on neurotransmission and stress alleviation.
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Affiliation(s)
- Yoonhang Lee
- Department of Aquatic Life Medicine, College of Fisheries Sciences, Pukyong National University, Busan, South Korea
| | - Thanh Luan Nguyen
- Department of Science and Technology, HUTECH University, Ho Chi Minh City, Viet Nam
| | - HyeongJin Roh
- Department of Aquatic Life Medicine, College of Fisheries Sciences, Pukyong National University, Busan, South Korea
| | - Ahran Kim
- Department of Aquatic Life Medicine, College of Fisheries Sciences, Pukyong National University, Busan, South Korea
| | - Jiyeon Park
- Department of Aquatic Life Medicine, College of Fisheries Sciences, Pukyong National University, Busan, South Korea
| | - Ju-Yeop Lee
- Department of Aquatic Life Medicine, College of Fisheries Sciences, Pukyong National University, Busan, South Korea
| | - Yu-Ra Kang
- Department of Aquatic Life Medicine, College of Fisheries Sciences, Pukyong National University, Busan, South Korea
| | - Hyoyeong Kang
- Department of Aquatic Life Medicine, College of Fisheries Sciences, Pukyong National University, Busan, South Korea
| | - Min-Young Sohn
- Department of Marine Biology and Aquaculture, College of Marine Science, Gyeongsang National University, Tongyeong, South Korea
| | - Chan-Il Park
- Department of Marine Biology and Aquaculture, College of Marine Science, Gyeongsang National University, Tongyeong, South Korea
| | - Do-Hyung Kim
- Department of Aquatic Life Medicine, College of Fisheries Sciences, Pukyong National University, Busan, South Korea.
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17
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Mäkelä SM, Griffin SM, Reimari J, Evans KC, Hibberd AA, Yeung N, Ibarra A, Junnila J, Turunen J, Beboso R, Chhokar B, Dinan TG, Cryan J, Patterson E. Efficacy and safety of Lacticaseibacillus paracasei Lpc-37® in students facing examination stress: A randomized, triple-blind, placebo-controlled clinical trial (the ChillEx study). Brain Behav Immun Health 2023; 32:100673. [PMID: 37662485 PMCID: PMC10474370 DOI: 10.1016/j.bbih.2023.100673] [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: 01/25/2023] [Revised: 06/27/2023] [Accepted: 07/30/2023] [Indexed: 09/05/2023] Open
Abstract
Lacticaseibacillus paracasei Lpc-37 (Lpc-37) has previously shown to reduce perceived stress in healthy adults. The ChillEx study investigated whether Lpc-37 reduces stress in a model of chronic examination stress in healthy students. One hundred ninety university students (18-40 y) were randomized to take 1.56 × 1010 colony-forming units of Lpc-37 or placebo (1:1) each day for 10 weeks, in a triple-blind, parallel, multicenter clinical trial consisting of six visits: two screening visits, a baseline visit, and visits at 4, 8, and 10 weeks after baseline. The primary objective was to demonstrate that Lpc-37 reduces stress, as measured by the change in state anxiety from baseline to just before the first examination, after 8 weeks using the State Trait Anxiety Inventory (STAI-state). Secondary objectives aimed to demonstrate that Lpc-37 modulates psychological stress-induced symptoms and biomarkers related to mood and sleep. An exploratory analysis of fecal microbiota composition was also conducted. There was no difference between Lpc-37 and placebo groups in the change of STAI-state score (estimate 1.03; 95% confidence interval [CI]: -1.62, 3.67; p = 0.446). None of the secondary outcomes resulted in significant results when corrected for multiplicity, but exploratory results were notable. Results showed an improvement in sleep-disturbance scores (odds ratio 0.30; 95% CI: 0.11, 0.82; p = 0.020) and reduction in duration of sleep (odds ratio 3.52; 95% CI: 1.46, 8.54; p = 0.005) on the Pittsburgh Sleep Quality Index questionnaire after 8 weeks in the Lpc-37 group compared to placebo. A reduction in Bond Lader VAS-alertness was also demonstrated in the Lpc-37 group compared to placebo (estimate -3.97; 95% CI: -7.78, -0.15; p = 0.042) just prior to the examination. Analysis of fecal microbiota found no differences between study groups for alpha and beta diversity or microbiota abundance. Adverse events were similar between groups. Vital signs, safety-related laboratory measures, and gastrointestinal parameters were stable during the trial. In conclusion, probiotic Lpc-37 was safe but had no effect on stress, mood, or anxiety in healthy university students in this model of chronic academic stress. ClinicalTrials.gov: NCT04125810.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Ronnie Beboso
- MeDiNova North London Dedicated Research Center, London, UK
| | - Balgit Chhokar
- MeDiNova East London Dedicated Research Center, London, UK
| | | | - John Cryan
- APC Microbiome Ireland, University College Cork, Cork, Ireland
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18
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Kuijer EJ, Steenbergen L. The microbiota-gut-brain axis in hippocampus-dependent learning and memory: current state and future challenges. Neurosci Biobehav Rev 2023; 152:105296. [PMID: 37380040 DOI: 10.1016/j.neubiorev.2023.105296] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 05/15/2023] [Accepted: 06/23/2023] [Indexed: 06/30/2023]
Abstract
A fundamental shift in neuroscience suggests bidirectional interaction of gut microbiota with the healthy and dysfunctional brain. This microbiota-gut-brain axis has mainly been investigated in stress-related psychopathology (e.g. depression, anxiety). The hippocampus, a key structure in both the healthy brain and psychopathologies, is implicated by work in rodents that suggests gut microbiota substantially impact hippocampal-dependent learning and memory. However, understanding microbiota-hippocampus mechanisms in health and disease, and translation to humans, is hampered by the absence of a coherent evaluative approach. We review the current knowledge regarding four main gut microbiota-hippocampus routes in rodents: through the vagus nerve; via the hypothalamus-pituitary-adrenal-axis; by metabolism of neuroactive substances; and through modulation of host inflammation. Next, we suggest an approach including testing (biomarkers of) the four routes as a function of the influence of gut microbiota (composition) on hippocampal-dependent (dys)functioning. We argue that such an approach is necessary to proceed from the current state of preclinical research to beneficial application in humans to optimise microbiota-based strategies to treat and enhance hippocampal-dependent memory (dys)functions.
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Affiliation(s)
- Eloise J Kuijer
- Leiden University Medical Centre, Leiden, the Netherlands; Department of Life Sciences, University of Bath, United Kingdom.
| | - Laura Steenbergen
- Clinical Psychology Unit, Leiden University & Leiden Institute for Brain and Cognition, Leiden, the Netherlands
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19
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McKenna BG, Dunlop AL, Corwin E, Smith AK, Venkateswaran S, Brennan PA. Intergenerational and early life associations of the gut microbiome and stress-related symptomatology among Black American mothers and children. Brain Behav Immun Health 2023; 31:100651. [PMID: 37449285 PMCID: PMC10336162 DOI: 10.1016/j.bbih.2023.100651] [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: 01/03/2023] [Revised: 05/02/2023] [Accepted: 06/03/2023] [Indexed: 07/18/2023] Open
Abstract
Recent evidence suggests that maternal childhood adversity may have an intergenerational impact, with children of adversity-exposed mothers exhibiting elevated symptoms of psychopathology. At the same time, many children demonstrate resilience to these intergenerational effects. Among the variety of factors that likely contribute to resilience, the composition of the gut microbiome may play a role in buffering the negative impacts of trauma and stress. The current prospective cohort study tested the novel hypothesis that offspring gut microbiome composition is a potential moderator in the relationship between maternal exposure to childhood adversity and offspring symptomatology (i.e., internalizing, externalizing, and posttraumatic stress symptoms). Maternal childhood adversity was self-reported during pregnancy via the Childhood Trauma Questionnaire and Adverse Childhood Experiences (ACEs) survey, and offspring symptomatology was assessed with the Child Behavior Checklist/1.5-5 when offspring were 2-4 years old. Offspring fecal samples were collected between these timepoints (i.e., during 6- to 24-month follow-up visits) for microbiome sequencing. Results indicated that maternal ACEs and the relative abundances of Bifidobacterium, Lactobacillus, and Prevotella were associated with offspring symptomatology. However, there was little evidence that microbial abundance moderated the association between maternal adversity and offspring symptoms. Overall, these findings further our understanding of how the gut microbiome associates with psychopathology, and informs future studies aimed at targeting modifiable factors that may buffer the intergenerational effects of childhood adversity.
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Affiliation(s)
| | - Anne L. Dunlop
- School of Nursing, Emory University, Atlanta, GA, 30322, USA
| | - Elizabeth Corwin
- School of Nursing, Columbia University, New York, NY, 10032, USA
| | - Alicia K. Smith
- Department of Gynecology and Obstetrics, Emory University, Atlanta, GA, 30322, USA
- Department of Psychiatry and Behavioral Sciences, Emory University, Atlanta, GA, 30322, USA
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20
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Yang X, He X, Xu S, Zhang Y, Mo C, Lai Y, Song Y, Yan Z, Ai P, Qian Y, Xiao Q. Effect of Lacticaseibacillus paracasei strain Shirota supplementation on clinical responses and gut microbiome in Parkinson's disease. Food Funct 2023; 14:6828-6839. [PMID: 37470081 DOI: 10.1039/d3fo00728f] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/21/2023]
Abstract
Parkinson's disease (PD) is a common neurodegenerative disease characterized by motor issues and a range of non-motor symptoms. Microbial therapy may be a useful approach for the treatment of PD. However, comprehensive analyses of the impact of probiotic supplementation on motor and non-motor symptoms are still lacking and the mechanisms whereby the treatment works remain unclear. This study investigated Lacticaseibacillus paracasei strain Shirota (LcS) supplementation on clinical responses, gut microbiota and faecal metabolites in PD patients. Patients (n = 128) were randomised to receive either probiotics (LcS-fermented milk, containing 1 × 1010 living LcS cells) or placebo for 12 weeks. All participants were examined and the basic clinical features were recorded using questionnaires. Fecal and blood samples were collected at the baseline and after 12 weeks for further omics analysis. We found that LcS intervention significantly alleviated patients' constipation-related symptoms and non-motor symptoms. We found no significant shifts in the composition of gut microbiota or faecal metabolites. Several taxa were differentially abundant between the groups, especially with regard to LcS intake, which increased the abundance of the genus Lacticaseibacillus in the probiotic group compared with those at the baseline and in the placebo group. The faecal concentration of L-tyrosine was significantly decreased and the plasma concentration of L-tyrosine was increased in the probiotic group compared with the placebo group. Our study demonstrated that although supplementation with LcS did not induce major changes in the global gut microbiome, the probiotic had favorable effects in managing constipation and other non-motor symptoms in PD patients. This study was registered at the Chinese Clinical Trial Registry: ChiCTR1800016795.
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Affiliation(s)
- Xiaodong Yang
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China.
| | - Xiaoqin He
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China.
| | - Shaoqing Xu
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China.
| | - Yi Zhang
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China.
| | - Chengjun Mo
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China.
| | - Yiqiu Lai
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China.
| | - Yanyan Song
- Department of Biostatistics, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Zheng Yan
- Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, PR China
| | - Penghui Ai
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China.
| | - Yiwei Qian
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China.
| | - Qin Xiao
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China.
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21
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Mutoh N, Kakiuchi I, Kato K, Xu C, Iwabuchi N, Ayukawa M, Kiyosawa K, Igarashi K, Tanaka M, Nakamura M, Miyasaka M. Heat-Killed L. helveticus Enhances Positive Mood States: A Randomized, Double-Blind, Placebo-Controlled Study. Brain Sci 2023; 13:973. [PMID: 37371451 DOI: 10.3390/brainsci13060973] [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: 05/26/2023] [Revised: 06/15/2023] [Accepted: 06/15/2023] [Indexed: 06/29/2023] Open
Abstract
When mood states are impaired, daily life is severely disrupted. To maintain a specific mood state, both positive and negative moods must be controlled; however, methods to maintain a positive mood have not been fully established. Previous studies have suggested that heat-killed L. helveticus MCC1848 has the potential to improve positive moods. This study aimed to test the efficacy of heat-killed L. helveticus MCC1848 in maintaining and improving a positive mood with PANAS, a questionnaire specifically designed to assess positive and negative mood, as the primary endpoint. Healthy Japanese nursing students (n = 46) were randomized to receive heat-killed L. helveticus MCC1848 (5 billion/day) or placebo powder for four weeks. Mood state was assessed before and two and four weeks after the intervention began; ingestion of heat-killed L. helveticus MCC1848 significantly improved PANAS 'Positive Affect' compared to the placebo. These results indicate that heat-killed L. helveticus MCC1848 is effective in enhancing positive mood.
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Affiliation(s)
- Natsumi Mutoh
- Innovative Research Institute, Morinaga Milk Industry Co., Ltd., 1-83, 5-Chome, Higashihara, Zama-City 252-8583, Kanagawa, Japan
| | - Izumi Kakiuchi
- Faculty of Nursing, Matsumoto College of Nursing, 3118, Sasaga, Matsumoto-City 399-0033, Nagano, Japan
| | - Kumiko Kato
- Innovative Research Institute, Morinaga Milk Industry Co., Ltd., 1-83, 5-Chome, Higashihara, Zama-City 252-8583, Kanagawa, Japan
| | - Chendong Xu
- Innovative Research Institute, Morinaga Milk Industry Co., Ltd., 1-83, 5-Chome, Higashihara, Zama-City 252-8583, Kanagawa, Japan
| | - Noriyuki Iwabuchi
- Innovative Research Institute, Morinaga Milk Industry Co., Ltd., 1-83, 5-Chome, Higashihara, Zama-City 252-8583, Kanagawa, Japan
| | - Masayo Ayukawa
- Faculty of Nursing, Matsumoto College of Nursing, 3118, Sasaga, Matsumoto-City 399-0033, Nagano, Japan
| | - Kyoko Kiyosawa
- Department of Nursing, Matsumoto Junior College, 3118, Sasaga, Matsumoto-City 399-0033, Nagano, Japan
| | - Kazumi Igarashi
- Faculty of Nursing, Matsumoto College of Nursing, 3118, Sasaga, Matsumoto-City 399-0033, Nagano, Japan
| | - Miyuki Tanaka
- Innovative Research Institute, Morinaga Milk Industry Co., Ltd., 1-83, 5-Chome, Higashihara, Zama-City 252-8583, Kanagawa, Japan
| | - Masahiko Nakamura
- Matsumoto City Hospital, 4417-180 Hata, Matsumoto-City 390-1401, Nagano, Japan
| | - Mitsunaga Miyasaka
- Faculty of Nursing, Matsumoto College of Nursing, 3118, Sasaga, Matsumoto-City 399-0033, Nagano, Japan
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22
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Sasso JM, Ammar RM, Tenchov R, Lemmel S, Kelber O, Grieswelle M, Zhou QA. Gut Microbiome-Brain Alliance: A Landscape View into Mental and Gastrointestinal Health and Disorders. ACS Chem Neurosci 2023; 14:1717-1763. [PMID: 37156006 DOI: 10.1021/acschemneuro.3c00127] [Citation(s) in RCA: 29] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023] Open
Abstract
Gut microbiota includes a vast collection of microorganisms residing within the gastrointestinal tract. It is broadly recognized that the gut and brain are in constant bidirectional communication, of which gut microbiota and its metabolic production are a major component, and form the so-called gut microbiome-brain axis. Disturbances of microbiota homeostasis caused by imbalance in their functional composition and metabolic activities, known as dysbiosis, cause dysregulation of these pathways and trigger changes in the blood-brain barrier permeability, thereby causing pathological malfunctions, including neurological and functional gastrointestinal disorders. In turn, the brain can affect the structure and function of gut microbiota through the autonomic nervous system by regulating gut motility, intestinal transit and secretion, and gut permeability. Here, we examine data from the CAS Content Collection, the largest collection of published scientific information, and analyze the publication landscape of recent research. We review the advances in knowledge related to the human gut microbiome, its complexity and functionality, its communication with the central nervous system, and the effect of the gut microbiome-brain axis on mental and gut health. We discuss correlations between gut microbiota composition and various diseases, specifically gastrointestinal and mental disorders. We also explore gut microbiota metabolites with regard to their impact on the brain and gut function and associated diseases. Finally, we assess clinical applications of gut-microbiota-related substances and metabolites with their development pipelines. We hope this review can serve as a useful resource in understanding the current knowledge on this emerging field in an effort to further solving of the remaining challenges and fulfilling its potential.
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Affiliation(s)
- Janet M Sasso
- CAS, a division of the American Chemical Society, 2540 Olentangy River Rd, Columbus, Ohio 43202, United States
| | - Ramy M Ammar
- Bayer Consumer Health, R&D Digestive Health, Darmstadt 64295, Germany
| | - Rumiana Tenchov
- CAS, a division of the American Chemical Society, 2540 Olentangy River Rd, Columbus, Ohio 43202, United States
| | - Steven Lemmel
- CAS, a division of the American Chemical Society, 2540 Olentangy River Rd, Columbus, Ohio 43202, United States
| | - Olaf Kelber
- Bayer Consumer Health, R&D Digestive Health, Darmstadt 64295, Germany
| | - Malte Grieswelle
- Bayer Consumer Health, R&D Digestive Health, Darmstadt 64295, Germany
| | - Qiongqiong Angela Zhou
- CAS, a division of the American Chemical Society, 2540 Olentangy River Rd, Columbus, Ohio 43202, United States
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23
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Sabit H, Kassab A, Alaa D, Mohamed S, Abdel-Ghany S, Mansy M, Said OA, Khalifa MA, Hafiz H, Abushady AM. The Effect of Probiotic Supplementation on the Gut-Brain Axis in Psychiatric Patients. Curr Issues Mol Biol 2023; 45:4080-4099. [PMID: 37232729 DOI: 10.3390/cimb45050260] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 03/27/2023] [Accepted: 04/04/2023] [Indexed: 05/27/2023] Open
Abstract
The pathophysiology of several psychiatric diseases may entail disturbances in the hypothalamic-pituitary-adrenal (HPA) axis and metabolic pathways. Variations in how these effects present themselves may be connected to individual variances in clinical symptoms and treatment responses, such as the observation that a significant fraction of participants do not respond to current antipsychotic drugs. A bidirectional signaling pathway between the central nervous system and the gastrointestinal tract is known as the microbiota-gut-brain axis. The large and small intestines contain more than 100 trillion microbial cells, contributing to the intestinal ecosystem's incredible complexity. Interactions between the microbiota and intestinal epithelium can alter brain physiology and affect mood and behavior. There has recently been a focus on how these relationships impact mental health. According to evidence, intestinal microbiota may play a role in neurological and mental illnesses. Intestinal metabolites of microbial origin, such as short-chain fatty acids, tryptophan metabolites, and bacterial components that might stimulate the host's immune system, are mentioned in this review. We aim to shed some on the growing role of gut microbiota in inducing/manipulating several psychiatric disorders, which may pave the way for novel microbiota-based therapies.
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Affiliation(s)
- Hussein Sabit
- Department of Medical Biotechnology, College of Biotechnology, Misr University for Science and Technology, Giza P.O. Box 77, Egypt
| | - Areej Kassab
- Department of Medical Biotechnology, College of Biotechnology, Misr University for Science and Technology, Giza P.O. Box 77, Egypt
| | - Donia Alaa
- Department of Medical Biotechnology, College of Biotechnology, Misr University for Science and Technology, Giza P.O. Box 77, Egypt
| | - Shaza Mohamed
- Department of Medical Biotechnology, College of Biotechnology, Misr University for Science and Technology, Giza P.O. Box 77, Egypt
| | - Shaimaa Abdel-Ghany
- Department of Environmental Biotechnology, College of Biotechnology, Misr University for Science and Technology, Giza P.O. Box 77, Egypt
| | - Mohamed Mansy
- Department of Maxillofacial Surgery and Diagnostic Sciences, College of Dentistry, Jazan University, Jazan 45142, Saudi Arabia
| | - Osama A Said
- Department of Agricultural Biotechnology, College of Biotechnology, Misr University for Science and Technology, Giza P.O. Box 77, Egypt
| | - Mona A Khalifa
- Faculty of Art and Science, Samtah, Jazan University, Jazan 45142, Saudi Arabia
| | - Halah Hafiz
- Clinical Nutrition Department, Factually of Applied Medical Science, Umm Alqura University, Mecca 24382, Saudi Arabia
| | - Asmaa M Abushady
- School of Biotechnology, Nile University, Giza 41516, Egypt
- Genetic Department, Faculty of Agriculture, Ain Shams University, Cairo 11566, Egypt
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24
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Chan KW, Hebert J, Radford-Smith D, Anthony DC, Burnet PW. Live or heat-killed probiotic administration reduces anxiety and central cytokine expression in BALB/c mice, but differentially alters brain neurotransmitter gene expression. Neuropharmacology 2023; 235:109565. [PMID: 37150398 DOI: 10.1016/j.neuropharm.2023.109565] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 04/26/2023] [Accepted: 04/30/2023] [Indexed: 05/09/2023]
Abstract
While the potential for probiotic supplements to act as adjunctive treatments for mood disorders has been widely demonstrated, the precise mode of action remains unclear. To investigate the psychotropic effects of a multi-species probiotic supplement on emotional behaviour in male BALB/c mice, we explored the potential mechanisms of action relating to the temporal changes in the mRNA expression of brain cytokines, growth factors, central 5HT receptor and serotonin transporter (SERT) and GABA receptor in the context of probiotic induced behavioural changes. The effects of a heat-killed probiotic, independent of microbial metabolic processes were also evaluated on the same outcomes to understand whether the host response to the bacteria is more or less important than the contribution of the metabolic activity of the bacteria themselves. Results showed that probiotic supplementation reduced anxiety-like behaviours, increased time spent in the light area of the light-dark box, and decreased the expression of pro-inflammatory cytokines in the brain. Furthermore, probiotic administration elevated hippocampal BDNF and decreased GABAB1β expression. Interestingly, the heat-killed probiotic and its membrane fraction had similar effects on emotional behaviours and gene expression in the brain. The ingestion of live and heat-killed probiotic preparations also reduced TLR2 expression in the gut. Thus, the present study reveals that the anxiolytic action of a multispecies probiotic in BALB/c mice is independent of bacterial viability. This suggests that it is the host response to probiotics, rather than microbial metabolism that facilitates the molecular changes in the brain and downstream behaviours.
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Affiliation(s)
- Ka Wai Chan
- Department of Psychiatry, University of Oxford, Oxford, OX3 7JX, United Kingdom
| | - Jennifer Hebert
- Department of Psychiatry, University of Oxford, Oxford, OX3 7JX, United Kingdom
| | | | - Daniel C Anthony
- Department of Pharmacology, University of Oxford, OX1 3QT, United Kingdom
| | - Philip Wj Burnet
- Department of Psychiatry, University of Oxford, Oxford, OX3 7JX, United Kingdom.
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25
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Cichońska P, Kowalska E, Ziarno M. The Survival of Psychobiotics in Fermented Food and the Gastrointestinal Tract: A Review. Microorganisms 2023; 11:microorganisms11040996. [PMID: 37110420 PMCID: PMC10142889 DOI: 10.3390/microorganisms11040996] [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: 03/25/2023] [Revised: 04/04/2023] [Accepted: 04/10/2023] [Indexed: 04/29/2023] Open
Abstract
In recent years, scientists have been particularly interested in the gut-brain axis, as well as the impact of probiotics on the nervous system. This has led to the creation of the concept of psychobiotics. The present review describes the mechanisms of action of psychobiotics, their use in food products, and their viability and survival during gastrointestinal passage. Fermented foods have a high potential of delivering probiotic strains, including psychobiotic ones. However, it is important that the micro-organisms remain viable in concentrations ranging from about 106 to 109 CFU/mL during processing, storage, and digestion. Reports indicate that a wide variety of dairy and plant-based products can be effective carriers for psychobiotics. Nonetheless, bacterial viability is closely related to the type of food matrix and the micro-organism strain. Studies conducted in laboratory conditions have shown promising results in terms of the therapeutic properties and viability of probiotics. Because human research in this field is still limited, it is necessary to broaden our understanding of the survival of probiotic strains in the human digestive tract, their resistance to gastric and pancreatic enzymes, and their ability to colonize the microbiota.
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Affiliation(s)
- Patrycja Cichońska
- Department of Food Technology and Assessment, Institute of Food Science, Warsaw University of Life Sciences-SGGW (WULS-SGGW), Nowoursynowska 159c St., 02-776 Warsaw, Poland
| | - Ewa Kowalska
- Department of Food Technology and Assessment, Institute of Food Science, Warsaw University of Life Sciences-SGGW (WULS-SGGW), Nowoursynowska 159c St., 02-776 Warsaw, Poland
| | - Małgorzata Ziarno
- Department of Food Technology and Assessment, Institute of Food Science, Warsaw University of Life Sciences-SGGW (WULS-SGGW), Nowoursynowska 159c St., 02-776 Warsaw, Poland
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26
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De Oliveira FL, Salgaço MK, de Oliveira MT, Mesa V, Sartoratto A, Peregrino AM, Ramos WS, Sivieri K. Exploring the Potential of Lactobacillus helveticus R0052 and Bifidobacterium longum R0175 as Promising Psychobiotics Using SHIME. Nutrients 2023; 15:nu15061521. [PMID: 36986251 PMCID: PMC10056475 DOI: 10.3390/nu15061521] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/12/2023] [Accepted: 03/17/2023] [Indexed: 03/30/2023] Open
Abstract
Psychobiotics are probiotics that have the characteristics of modulating central nervous system (CNS) functions or reconciled actions by the gut-brain axis (GBA) through neural, humoral and metabolic pathways to improve gastrointestinal activity as well as anxiolytic and even antidepressant abilities. The aim of this work was to evaluate the effect of Lactobacillus helveticus R0052 and Bifidobacterium longum R0175 on the gut microbiota of mildly anxious adults using SHIME®. The protocol included a one-week control period and two weeks of treatment with L. helveticus R0052 and B. longum R0175. Ammonia (NH4+), short chain fatty acids (SCFAs), gamma-aminobutyric acid (GABA), cytokines and microbiota composition were determined. Probiotic strains decreased significantly throughout the gastric phase. The highest survival rates were exhibited by L. helveticus R0052 (81.58%; 77.22%) after the gastric and intestinal phase when compared to B. longum (68.80%; 64.64%). At the genus level, a taxonomic assignment performed in the ascending colon in the SHIME® model showed that probiotics (7 and 14 days) significantly (p < 0.005) increased the abundance of Lactobacillus and Olsenella and significantly decreased Lachnospira and Escheria-Shigella. The probiotic treatment (7 and 14 days) decreased (p < 0.001) NH4+ production when compared to the control period. For SCFAs, we observed after probiotic treatment (14 days) an increase (p < 0.001) in acetic acid production and total SCFAs when compared to the control period. Probiotic treatment increased (p < 0.001) the secretion of anti-inflammatory (IL-6 and IL-10) and decreased (p < 0.001) pro-inflammatory cytokines (TNF-alpha) when compared to the control period. The gut-brain axis plays an important role in the gut microbiota, producing SCFAs and GABA, stimulating the production of anti-anxiety homeostasis. The signature of the microbiota in anxiety disorders provides a promising direction for the prevention of mental illness and opens a new perspective for using the psychobiotic as a main actor of therapeutic targets.
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Affiliation(s)
- Fellipe Lopes De Oliveira
- Graduate Program in Food, Nutrition, and Food Engineering, Campus Araraquara, São Paulo State University (UNESP), Araraquara 14800-060, SP, Brazil
| | - Mateus Kawata Salgaço
- Graduate Program in Food, Nutrition, and Food Engineering, Campus Araraquara, São Paulo State University (UNESP), Araraquara 14800-060, SP, Brazil
| | | | - Victoria Mesa
- Université Paris Cité, INSERM, UMR-S 1139 (3PHM), Faculty of Pharmacy, F-75006 Paris, France
- Food and Human Nutrition Research Group, School of Nutrition and Dietetics, Universidad de Antioquia (UdeA), Medellín 050010, Antioquia, Colombia
| | | | | | - Williams Santos Ramos
- APSEN Farmacêutica, Department of Medical Affairs, Santo Amaro 04753-001, SP, Brazil
| | - Katia Sivieri
- Graduate Program in Food, Nutrition, and Food Engineering, Campus Araraquara, São Paulo State University (UNESP), Araraquara 14800-060, SP, Brazil
- University of Araraquara-UNIARA, Araraquara 14801-320, SP, Brazil
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27
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Xu J, Tang M, Wang D, Zhang X, Yang X, Ma Y, Xu X. Lactocaseibacillus rhamnosus zz-1 Supplementation Mitigates Depression-Like Symptoms in Chronic Stress-Induced Depressed Mice via the Microbiota-Gut-Brain Axis. ACS Chem Neurosci 2023; 14:1095-1106. [PMID: 36812493 DOI: 10.1021/acschemneuro.2c00580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023] Open
Abstract
Accumulating evidence has revealed an association between depression and disordered intestinal microecology. The discovery of psychobiotics has provided a promising perspective for studying the treatment of psychiatric disorders. Here, we aimed to investigate the antidepressant abilities of Lactocaseibacillus rhamnosus zz-1 (LRzz-1) and elucidate the underlying mechanisms. The viable bacteria (2 × 109 CFU/day) were orally supplemented to depressed C57BL/6 mice induced by chronic unpredictable mild stress (CUMS), and the behavioral, neurophysiological, and intestinal microbial effects were assessed, with fluoxetine used as a positive control. The treatment with LRzz-1 effectively mitigated the depression-like behavioral disorders of depressed mice and reduced the expression of inflammatory cytokine mRNA (IL-1β, IL-6, and TNF-α) in the hippocampus. In addition, LRzz-1 treatment also improved tryptophan metabolic disorder in the mouse hippocampus, as well as its peripheral circulation. These benefits are associated with the mediation of microbiome-gut-brain bidirectional communication. CUMS-induced depression impaired the intestinal barrier integrity and microbial homeostasis in mice, neither of which was restored by fluoxetine. LRzz-1 prevented intestinal leakage and significantly ameliorated epithelial barrier permeability by up-regulating tight-junction proteins (including ZO-1, occludin, and claudin-1). In particular, LRzz-1 improved the microecological balance by normalizing the threatened bacteria (e.g., Bacteroides and Desulfovibrio), exerting beneficial regulation (e.g., Ruminiclostridium 6 and Alispites), and modifying short-chain fatty acid metabolism. In summary, LRzz-1 showed considerable antidepressant-like effects and exhibited more comprehensive intestinal microecological regulation than other drugs, which offers novel insights that can facilitate the development of depression therapeutic strategies.
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Affiliation(s)
- Jinzhao Xu
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, P. R. China.,College of Food Science, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Mengqi Tang
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, P. R. China.,College of Food Science, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Danping Wang
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, P. R. China.,College of Food Science, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Xuyan Zhang
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, P. R. China.,College of Food Science, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Xiaoying Yang
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, P. R. China.,College of Food Science, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Yanshi Ma
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, P. R. China.,College of Food Science, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Xiaoxi Xu
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, Harbin 150030, P. R. China.,College of Food Science, Northeast Agricultural University, Harbin 150030, P. R. China
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28
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Jia L, Han X. EFFECTS OF EXERCISE TRAINING COMBINED WITH ACUPUNCTURE AND MOXIBUSTION ON FATIGUE. REV BRAS MED ESPORTE 2023. [DOI: 10.1590/1517-8692202329012022_0745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023] Open
Abstract
ABSTRACT Introduction: Muscle fatigue bothers athletes, affecting training level and competitive performance, it also has a great impact on the physical health of athletes, predisposing them to accidents and an early termination of their career. Relieving sports fatigue is the focus of research in the field of sports health nowadays. Objective: Study the effect of acupuncture and moxibustion rehabilitation combined with physical training on sports fatigue. Methods: A controlled experiment was used. The experimental group used acupuncture and moxibustion combined with exercise training, while the control group used acupuncture and moxibustion. The same group of doctors performed the acupuncture and moxibustion treatment according to the actual situation of the patients, and they tested the changes in VAS pain score and PRI pain score. Results: The VAS pain score in the experimental group was 7.88 points before the procedure and 2.96 points after the sixth week of the procedure. The control group score was 7.67 before the start and 5.03 after training. The total PRI pain score in the experimental group was 6.52 points before training and 2.05 points in the sixth week of training. The control group scored 6.66 before the procedure and 3.89 in the sixth week. Conclusion: The combination of training and exercises can achieve a better rehabilitation effect compared to the isolated treatment of acupuncture and moxibustion. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
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29
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Liu G, Khan I, Li Y, Yang Y, Lu X, Wang Y, Li J, Zhang C. Overcoming Anxiety Disorder by Probiotic Lactiplantibacillus plantarum LZU-J-TSL6 through Regulating Intestinal Homeostasis. Foods 2022; 11:foods11223596. [PMID: 36429192 PMCID: PMC9689226 DOI: 10.3390/foods11223596] [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: 09/26/2022] [Revised: 10/14/2022] [Accepted: 11/04/2022] [Indexed: 11/16/2022] Open
Abstract
Lactiplantibacillus plantarum LZU-J-TSL6 with high γ-aminobutyric acid (GABA) production (3.838 g/L) was screened and isolated from the Chinese fermented food snack “Jiangshui”. The improvement effect on anxiety disorder was explored using mice as animal models. In vitro results revealed that LZU-J-TSL6 had the potential to colonize the intestine (p < 0.01) and the anxiety-like behavior of the mice after seven days’ gavage with LZU-J-TSL6 was significantly improved (p < 0.01) when compared to the model group. LZU-J-TSL6 was able to effectively increase the GABA content in the mice hippocampus (p < 0.0001) and restore some markers related to anxiety such as brain-derived neurotrophic factor (BDNF), glial fibrillary acidic protein (GFAP), and 5-hydroxytryptamine (5-HT). Simultaneously, it had a certain repair effect on Nissl bodies and colon tissue in mice hippocampus. In addition, LZU-J-TSL6 increased the relative abundance of beneficial bacteria Bacteroides and Muribaculum, thereby regulating the imbalance of intestinal microbiota caused by anxiety disorder. It also affects the nerve pathway and intestinal mucosal barrier by increasing the content of glutamine and γ-aminobutyric acid and other related metabolites, thereby improving anxiety. Therefore, the GABA-producing Lactobacillus plantus LZU-J-TSL6 can be used as a probiotic to exert an indirect or direct anti-anxiety effect by maintaining the balance of the intestinal environment, producing related metabolites that affect nerve pathways and repair the intestinal mucosal barrier. It can be used as an adjuvant treatment to improve anxiety disorders.
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Affiliation(s)
- Guanlan Liu
- School of Life Sciences, Lanzhou University, Lanzhou 730000, China
- Key Laboratory of Cell Activities and Stress Adaptations, Ministry of Education, Lanzhou University, Lanzhou 730000, China
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, Lanzhou 730000, China
| | - Israr Khan
- School of Life Sciences, Lanzhou University, Lanzhou 730000, China
- Key Laboratory of Cell Activities and Stress Adaptations, Ministry of Education, Lanzhou University, Lanzhou 730000, China
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, Lanzhou 730000, China
| | - Yuxi Li
- School of Life Sciences, Lanzhou University, Lanzhou 730000, China
- Key Laboratory of Cell Activities and Stress Adaptations, Ministry of Education, Lanzhou University, Lanzhou 730000, China
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, Lanzhou 730000, China
| | - Yun Yang
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Xuerui Lu
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Yafei Wang
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Junxiang Li
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Chunjiang Zhang
- School of Life Sciences, Lanzhou University, Lanzhou 730000, China
- Key Laboratory of Cell Activities and Stress Adaptations, Ministry of Education, Lanzhou University, Lanzhou 730000, China
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, Lanzhou 730000, China
- Gansu Key Laboratory of Functional Genomics and Molecular Diagnosis, Lanzhou University, Lanzhou 730000, China
- Correspondence:
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30
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Mosca A, Abreu Y Abreu AT, Gwee KA, Ianiro G, Tack J, Nguyen TVH, Hill C. The clinical evidence for postbiotics as microbial therapeutics. Gut Microbes 2022; 14:2117508. [PMID: 36184735 PMCID: PMC9542959 DOI: 10.1080/19490976.2022.2117508] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
An optimally operating microbiome supports protective, metabolic, and immune functions, but disruptions produce metabolites and toxins which can be involved in many conditions. Probiotics have the potential to manage these. However, their use in vulnerable people is linked to possible safety concerns and maintaining their viability is difficult. Interest in postbiotics is therefore increasing. Postbiotics contain inactivated microbial cells or cell components, thus are more stable and exert similar health benefits to probiotics. To review the evidence for the clinical benefits of postbiotics in highly prevalent conditions and consider future potential areas of benefit. There is growing evidence revealing the diverse clinical benefits of postbiotics in many prevalent conditions. Postbiotics could offer a novel therapeutic approach and may be a safer alternative to probiotics. Establishing interaction mechanisms between postbiotics and commensal microorganisms will improve the understanding of potential clinical benefits and may lead to targeted postbiotic therapy.
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Affiliation(s)
- Alexis Mosca
- Pediatric Gastroenterology and Nutrition Department, APHP Robert Debré, Paris, France
| | - Ana Teresa Abreu Y Abreu
- Gastroenterologist and Neuro-gastroenterologist, Angeles del Pedregal Hospital, Mexico City, Mexico
| | - Kok Ann Gwee
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore and Gleneagles Hospital, Singapore
| | - Gianluca Ianiro
- Gastroenterology Unit, Fondazione Policlinico Universitario”A. Gemelli” IRCCS, Rome, Italy
| | - Jan Tack
- Department of Gastroenterology, University Hospitals Leuven, Belgium
| | | | - Colin Hill
- APC Microbiome Institute, University College Cork, Ireland,CONTACT Prof. Colin HILL APC Microbiome Institute, University College Cork, Ireland
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31
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Freimer D, Yang TT, Ho TC, Tymofiyeva O, Leung C. The gut microbiota, HPA axis, and brain in adolescent-onset depression: Probiotics as a novel treatment. Brain Behav Immun Health 2022; 26:100541. [DOI: 10.1016/j.bbih.2022.100541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 10/22/2022] [Indexed: 11/09/2022] Open
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32
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Hua H, Huang C, Liu H, Xu X, Xu X, Wu Z, Liu C, Wang Y, Yang C. Depression and antidepressant effects of ketamine and its metabolites: The pivotal role of gut microbiota. Neuropharmacology 2022; 220:109272. [PMID: 36170927 DOI: 10.1016/j.neuropharm.2022.109272] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 09/19/2022] [Accepted: 09/20/2022] [Indexed: 02/07/2023]
Abstract
The discovery of the robust antidepressant actions of ketamine is regarded as one of the greatest advancements in depression treatment in the past 60 years. Recent findings have provided strong evidence for the presence of bidirectional communication networks between the gastrointestinal tract and the brain in depression. Moreover, increasing evidence supports the antidepressant role of ketamine in regulating the gut microbiome and microbiota-derived molecules; however, the mechanisms underpinning such effects are still ambiguous. This review summarizes the current understanding of the anti-depressant mechanisms of ketamine and its metabolites regarding the bidirectional regulation by microbiota-gut-brain axis. We review the relationship between gut microbiota and the antidepressant mechanisms of ketamine, and discuss the role of stress response, brain-derived neurotrophic factor (BDNF)-mediated neurogenesis, anti-inflammatory effect and neurotransmitters.
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Affiliation(s)
- Hao Hua
- Department of Anesthesiology, Wuxi 9th People's Hospital Affiliated to Soochow University, Wuxi, 214062, China
| | - Chaoli Huang
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Hanyu Liu
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Xiangyang Xu
- Nhwa Institute of Pharmaceutical Research, Jiangsu Nhwa Pharmaceutical Co., Ltd & Jiangsu Key Laboratory of Central Nervous System Drug Research and Development, Xuzhou, 221116, China
| | - Xiangqing Xu
- Nhwa Institute of Pharmaceutical Research, Jiangsu Nhwa Pharmaceutical Co., Ltd & Jiangsu Key Laboratory of Central Nervous System Drug Research and Development, Xuzhou, 221116, China
| | - Zifeng Wu
- Department of Anesthesiology, Wuxi 9th People's Hospital Affiliated to Soochow University, Wuxi, 214062, China
| | - Cunming Liu
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Yuanyuan Wang
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
| | - Chun Yang
- Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
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Inhibition of GABAAR or Application of Lactobacillus casei Zhang Alleviates Ulcerative Colitis in Mice: GABAAR as a Potential Target for Intestinal Epithelial Renewal and Repair. Int J Mol Sci 2022; 23:ijms231911210. [PMID: 36232509 PMCID: PMC9570049 DOI: 10.3390/ijms231911210] [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: 07/24/2022] [Revised: 09/02/2022] [Accepted: 09/13/2022] [Indexed: 11/16/2022] Open
Abstract
Emerging evidence indicates that the gamma−aminobutyric acid type A receptor (GABAAR) and Lactobacillus casei Zhang regulate colitis in a variety of ways, such as by participating in host immune and inflammatory responses, altering the gut microbiota, and influencing intestinal barrier function. However, not much is known about the mechanisms by which GABAAR and L. casei affect colon epithelial cell renewal and the interaction between GABAAR and L. casei during this process. To elucidate this, we established a dextran sulfate sodium (DSS)−induced model and measured the mouse body weights, colon length, the disease activity index (DAI), and histological scores. Our results indicated that inhibition of GABAAR alleviated the DSS−induced colitis symptoms, resulting in less weight loss and more intact colon tissue. Moreover, treatment with bicuculline (Bic, a GABAAR inhibitor) increased the levels of PCNA, β−catenin, and TCF4 in mice with colitis. Interestingly, open field test performances showed that inhibition of GABAAR also attenuated colitis−related anxiety−like behavior. By 16S RNA gene sequencing analysis, we showed that inhibition of GABAAR partially reversed the gut dysbacteriosis of DSS−induced mice and increased the abundance of beneficial bacteria. Additionally, L. casei Zhang supplementation inhibited the expression of GABAAR in mice with colitis, promoted the proliferation and renewal of colon epithelial cells, and alleviated anxiety−like behavior and intestinal microflora disorder in mice. Thus, GABAAR plays a key role in the beneficial effects of L. casei on DSS−induced colitis in mice.
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Rode J, Edebol Carlman HMT, König J, Hutchinson AN, Thunberg P, Persson J, Brummer RJ. Multi-Strain Probiotic Mixture Affects Brain Morphology and Resting State Brain Function in Healthy Subjects: An RCT. Cells 2022; 11:cells11182922. [PMID: 36139496 PMCID: PMC9496704 DOI: 10.3390/cells11182922] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 09/12/2022] [Accepted: 09/14/2022] [Indexed: 11/16/2022] Open
Abstract
Probiotics can alter brain function via the gut–brain axis. We investigated the effect of a probiotic mixture containing Bifidobacterium longum, Lactobacillus helveticus and Lactiplantibacillus plantarum. In a randomized, placebo-controlled, double-blinded crossover design, 22 healthy subjects (6 m/16 f; 24.2 ± 3.4 years) underwent four-week intervention periods with probiotics and placebo, separated by a four-week washout period. Voxel-based morphometry indicated that the probiotic intervention affected the gray matter volume of a cluster covering the left supramarginal gyrus and superior parietal lobule (p < 0.0001), two regions that were also among those with an altered resting state functional connectivity. Probiotic intervention resulted in significant (FDR < 0.05) functional connectivity changes between regions within the default mode, salience, frontoparietal as well as the language network and several regions located outside these networks. Psychological symptoms trended towards improvement after probiotic intervention, i.e., the total score of the Hospital Anxiety and Depression Scale (p = 0.056) and its depression sub-score (p = 0.093), as well as sleep patterns (p = 0.058). The probiotic intervention evoked distinct changes in brain morphology and resting state brain function alongside slight improvements of psycho(bio)logical markers of the gut–brain axis. The combination of those parameters may provide new insights into the modes of action by which gut microbiota can affect gut–brain communication and hence brain function.
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Affiliation(s)
- Julia Rode
- Nutrition-Gut-Brain Interactions Research Centre, Faculty of Medicine and Health, School of Medical Sciences, Örebro University, 70182 Örebro, Sweden
- Correspondence:
| | - Hanna M. T. Edebol Carlman
- Nutrition-Gut-Brain Interactions Research Centre, Faculty of Medicine and Health, School of Medical Sciences, Örebro University, 70182 Örebro, Sweden
| | - Julia König
- Nutrition-Gut-Brain Interactions Research Centre, Faculty of Medicine and Health, School of Medical Sciences, Örebro University, 70182 Örebro, Sweden
| | - Ashley N. Hutchinson
- Nutrition-Gut-Brain Interactions Research Centre, Faculty of Medicine and Health, School of Medical Sciences, Örebro University, 70182 Örebro, Sweden
| | - Per Thunberg
- Department of Radiology and Medical Physics, Faculty of Medicine and Health, Örebro University, 70182 Örebro, Sweden
| | - Jonas Persson
- Center for Lifespan Developmental Research (LEADER), Faculty of Humanities and Social Sciences, School of Law, Psychology and Social Work, Örebro University, 70182 Örebro, Sweden
| | - Robert J. Brummer
- Nutrition-Gut-Brain Interactions Research Centre, Faculty of Medicine and Health, School of Medical Sciences, Örebro University, 70182 Örebro, Sweden
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Probiotics in the Management of Mental and Gastrointestinal Post-COVID Symptomes. J Clin Med 2022; 11:jcm11175155. [PMID: 36079082 PMCID: PMC9457065 DOI: 10.3390/jcm11175155] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 08/17/2022] [Accepted: 08/29/2022] [Indexed: 01/30/2023] Open
Abstract
Patients with “post-COVID” syndrome manifest with a variety of signs and symptoms that continue/develop after acute COVID-19. Among the most common are gastrointestinal (GI) and mental symptoms. The reason for symptom occurrence lies in the SARS-CoV-2 capability of binding to exact receptors, among other angiotensin converting enzyme 2 (ACE2) receptors in gastrointestinal lining and neuropilin-1 (NRP-1) in the nervous system, which leads to loss of gastrointestinal and blood-brain barriers integrity and function. The data are mounting that SARS-CoV-2 can trigger systemic inflammation and lead to disruption of gut-brain axis (GBA) and the development of disorders of gut brain interaction (DGBIs). Functional dyspepsia (FD) and irritable bowel syndrome (IBS) are the most common DGBIs syndromes. On the other hand, emotional disorders have also been demonstrated as DGBIs. Currently, there are no official recommendations or recommended procedures for the use of probiotics in patients with COVID-19. However, it can be assumed that many doctors, pharmacists, and patients will want to use a probiotic in the treatment of this disease. In such cases, strains with documented activity should be used. There is a constant need to plan and conduct new trials on the role of probiotics and verify their clinical efficacy for counteracting the negative consequences of COVID-19 pandemic. Quality control is another important but often neglected aspect in trials utilizing probiotics in various clinical entities. It determines the safety and efficacy of probiotics, which is of utmost importance in patients with post-acute COVID-19 syndrome.
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Wu SI, Wu CC, Cheng LH, Noble SW, Liu CJ, Lee YH, Lin CJ, Hsu CC, Chen WL, Tsai PJ, Kuo PH, Tsai YC. Psychobiotic supplementation of HK-PS23 improves anxiety in highly stressed clinical nurses: a double-blind randomized placebo-controlled study. Food Funct 2022; 13:8907-8919. [PMID: 35924970 DOI: 10.1039/d2fo01156e] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Nurses often experience adverse health effects associated with increasing levels of work-related stress. Stress may induce systemic effects through the HPA axis, glucocorticoid responses, and inflammatory cascades. Psychobiotics may help alleviate stress through associations of the microbiota, anti-inflammation factors, and the gut-brain axis. We aimed to investigate whether interventions with a psychobiotic, heat-killed (HK)-PS23 cells, may help improve perceived stress, anxiety, and related biological markers among highly stressed clinical nurses. This double-blind, randomized, placebo-controlled study included seventy clinical nurses from a medical center in Northern Taiwan who scored 27 or higher on the 10-item version of the Perceived Stress Scale (PSS), and participants were randomized into either taking HK-PS23 or a placebo for 8 weeks. Baseline and endpoint results of the PSS, Job Stress Scale, State and Trait Anxiety Index (STAI), emotional questionnaires, gastrointestinal severity questionnaires, Trails Marking Tests, blood biological markers, and sleep data were analyzed. While both groups demonstrated improvements in most measures over time, only the blood cortisol measure demonstrated significant group differences after the 8-week trial. Further analyses of the subgroup with higher anxiety (nurses with STAI ≥ 103) revealed that anxiety states had improved significantly in the HK-PS23 group but not in the placebo group. In summary, this placebo-controlled trial found significant reduction in the level of blood cortisol after 8 weeks of HK-PS23 use. The distinctive anxiolytic effects of HK-PS23 may be beneficial in improving perceived anxiety and stress hormone levels in female nurses under pressure. Clinical trial registration: https://clinicaltrials.gov/, identifier: NCT04452253-sub-project 1.
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Affiliation(s)
- Shu-I Wu
- Department of Medicine, MacKay Medical College, New Taipei City, Taiwan. .,Section of Psychiatry and Suicide Prevention Center, MacKay Memorial Hospital, Taipei, Taiwan
| | | | | | | | - Chih-Ju Liu
- Department of Nursing, Mackay Memorial Hospital, Taipei, Taiwan
| | - Yu-Hsia Lee
- Department of Nursing, Mackay Memorial Hospital, Taipei, Taiwan
| | - Chen-Ju Lin
- Section of Psychiatry and Suicide Prevention Center, MacKay Memorial Hospital, Taipei, Taiwan
| | | | - Wan-Lin Chen
- Department of Medical Research, Mackay Memorial Hospital, Taipei, Taiwan
| | | | - Po-Hsiu Kuo
- Department of Public Health & Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan.,Department of Psychiatry, National Taiwan University Hospital, Taipei, Taiwan
| | - Ying-Chieh Tsai
- Institute of Biochemistry and Molecular Biology, National Yang Ming Chiao Tung University, Taipei, Taiwan
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Milde AM, Rød AMK, Brekke S, Gjøen H, Mesfin G, Murison R. Does a single exposure to social defeat render rats more vulnerable to chemically induced colitis than brief inescapable foot-shocks? PLoS One 2022; 17:e0263802. [PMID: 36001557 PMCID: PMC9401109 DOI: 10.1371/journal.pone.0263802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 08/01/2022] [Indexed: 11/18/2022] Open
Abstract
All mammals are to different degrees exposed to stressors being physical or social, which may affect health and well-being. Stressful and traumatic situations have direct effects on immune responses that may alter susceptibility to developing somatic illnesses. In animal research, different types of stressors have been investigated in studying the effect on bowel disorders, some stressors being more or less of environmental origin. We aimed, therefore, to explore whether a more natural stressor would differ from a stressor of more unnatural characteristics on dextran sulphate sodium (DSS) induced colitis in adult rats. Specifically, whether social stress within a single social defeat (SD) paradigm would be a more potent stressor than brief inescapable foot-shocks (IFS) in causing elevated faecal granulocyte marker protein (GMP), and crypt- and inflammation scores in colonic tissue. Three groups of male Wistar rats were used; socially defeated rats; inescapable foot-shock rats; and comparison rats. Main findings showed no difference between the groups on GMP levels. However, there was a significant difference on inflammation and crypt scores for the distal part of colon, detected through histology, where socially defeated rats were more susceptible. A single SD seems to be more adverse than inescapable foot-shock on DSS induced colitis, but further studies are recommended to validate a broader range of different outcomes comparing two such different rodent stress models.
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Affiliation(s)
- Anne Marita Milde
- Regional Centre for Child and Youth Mental Health and Child Welfare, Norwegian Research Centre, NORCE, Bergen, Norway
- Department of Biological and Medical Psychology, University of Bergen, Bergen, Norway
| | - Anne Marie Kinn Rød
- Department of Biological and Medical Psychology, University of Bergen, Bergen, Norway
- * E-mail:
| | - Silvia Brekke
- Department of Biological and Medical Psychology, University of Bergen, Bergen, Norway
| | - Hedda Gjøen
- Department of Biological and Medical Psychology, University of Bergen, Bergen, Norway
| | - Ghenet Mesfin
- Department of Biological and Medical Psychology, University of Bergen, Bergen, Norway
| | - Robert Murison
- Department of Biological and Medical Psychology, University of Bergen, Bergen, Norway
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Dai W, Liu J, Qiu Y, Teng Z, Li S, Yuan H, Huang J, Xiang H, Tang H, Wang B, Chen J, Wu H. Gut Microbial Dysbiosis and Cognitive Impairment in Bipolar Disorder: Current Evidence. Front Pharmacol 2022; 13:893567. [PMID: 35677440 PMCID: PMC9168430 DOI: 10.3389/fphar.2022.893567] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 04/20/2022] [Indexed: 12/11/2022] Open
Abstract
Recent studies have reported that the gut microbiota influences mood and cognitive function through the gut-brain axis, which is involved in the pathophysiology of neurocognitive and mental disorders, including Parkinson’s disease, Alzheimer’s disease, and schizophrenia. These disorders have similar pathophysiology to that of cognitive dysfunction in bipolar disorder (BD), including neuroinflammation and dysregulation of various neurotransmitters (i.e., serotonin and dopamine). There is also emerging evidence of alterations in the gut microbial composition of patients with BD, suggesting that gut microbial dysbiosis contributes to disease progression and cognitive impairment in BD. Therefore, microbiota-centered treatment might be an effective adjuvant therapy for BD-related cognitive impairment. Given that studies focusing on connections between the gut microbiota and BD-related cognitive impairment are lagging behind those on other neurocognitive disorders, this review sought to explore the potential mechanisms of how gut microbial dysbiosis affects cognitive function in BD and identify potential microbiota-centered treatment.
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Affiliation(s)
- Wenyu Dai
- National Clinical Research Center for Mental Disorders, Department of Psychiatry, China National Technology Institute on Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Jieyu Liu
- Department of Ultrasound Diagnostic, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Yan Qiu
- National Clinical Research Center for Mental Disorders, Department of Psychiatry, China National Technology Institute on Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Ziwei Teng
- National Clinical Research Center for Mental Disorders, Department of Psychiatry, China National Technology Institute on Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Sujuan Li
- National Clinical Research Center for Mental Disorders, Department of Psychiatry, China National Technology Institute on Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Hui Yuan
- Department of Ultrasound Diagnostic, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Jing Huang
- National Clinical Research Center for Mental Disorders, Department of Psychiatry, China National Technology Institute on Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Hui Xiang
- National Clinical Research Center for Mental Disorders, Department of Psychiatry, China National Technology Institute on Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Hui Tang
- National Clinical Research Center for Mental Disorders, Department of Psychiatry, China National Technology Institute on Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Bolun Wang
- Department of Radiology, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Jindong Chen
- National Clinical Research Center for Mental Disorders, Department of Psychiatry, China National Technology Institute on Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Haishan Wu
- National Clinical Research Center for Mental Disorders, Department of Psychiatry, China National Technology Institute on Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha, China
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Slykerman RF, Li E, Mitchell EA. Probiotics for Reduction of Examination Stress in Students (PRESS) study: A randomized, double-blind, placebo-controlled trial of the probiotic Lacticaseibacillus rhamnosus HN001. PLoS One 2022; 17:e0267778. [PMID: 35675229 PMCID: PMC9176810 DOI: 10.1371/journal.pone.0267778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 03/22/2022] [Indexed: 12/02/2022] Open
Abstract
Background Studies suggest that bioactive compounds such as probiotics may positively influence psychological health. This study aimed to determine whether supplementation with the probiotic Lacticaseibacillus rhamnosus HN001 reduced stress and improve psychological wellbeing in university students sitting examinations. Methods In this randomized, double-blind, placebo-controlled study, 483 undergraduate students received either the probiotic L. rhamnosus HN001, or placebo, daily during a university semester. Students completed measures of stress, anxiety, and psychological wellbeing at baseline and post-intervention before examinations. Mann Whitney U tests compared the change in psychological outcomes between groups. Results Of the 483 students, 391 (81.0%) completed the post-intervention questions. There was no significant difference between the probiotic and placebo supplemented groups in psychological health outcomes. The COVID19 pandemic restrictions may have influenced the typical trajectory of stress leading up to examinations. Conclusion We found no evidence of significant benefit of probiotics on the psychological health of university students. These findings highlight the challenges of conducting probiotic trials in human populations where the potential for contextual factors such as COVID19 response, and participant adherence to the intervention may influence results.
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Affiliation(s)
- Rebecca F. Slykerman
- Department of Psychological Medicine, University of Auckland, Auckland, New Zealand
- * E-mail:
| | - Eileen Li
- A Better Start – National Science Challenge University of Auckland, New Zealand
| | - Edwin A. Mitchell
- Department of Pediatrics, Child & Youth Health, University of Auckland, New Zealand
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Umeda K, Shindo D, Somekawa S, Nishitani S, Sato W, Toyoda S, Karakawa S, Kawasaki M, Mine T, Suzuki K. Effects of Five Amino Acids (Serine, Alanine, Glutamate, Aspartate, and Tyrosine) on Mental Health in Healthy Office Workers: A Randomized, Double-Blind, Placebo-Controlled Exploratory Trial. Nutrients 2022; 14:nu14112357. [PMID: 35684157 PMCID: PMC9183184 DOI: 10.3390/nu14112357] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/24/2022] [Accepted: 05/27/2022] [Indexed: 12/04/2022] Open
Abstract
Background: The importance of maintaining good mental health with overall well-being has recently drawn attention from various spheres of academics and the working population. Amino acid intake has been reported to reduce depression symptoms and other mental health problems. However, the effectiveness of amino acid intake (i.e., single or combined) remains unknown. In this study, we assessed a combination of five amino acids (serine, alanine, glutamate, aspartate, and tyrosine; SAGAT) reported to regulate mental health. Methods: A randomized, double-blind, placebo-controlled exploratory trial was conducted. Participants, aged between 20 and 65 years with fatigue sensation, were randomized to receive either SAGAT or the placebo and ingested them for four weeks. A transient mental work was loaded at day 0 and after four weeks of intervention. As the primary outcomes, the fatigue sensation was assessed. The mood status, cognitive function, work efficiency, and blood marker were also measured as secondary outcomes. Results: The number of participants analyzed for the efficacy evaluation were 20 in SAGAT and 22 in the placebo. There were no significant differences in the primary outcomes. However, as the secondary outcomes, the SAGAT group showed a significant improvement in motivation and cognitive function in the recovery period after mental work loaded in a four-week intervention compared to the placebo. Conclusion: The current findings suggest that SAGAT contributes to maintaining proper motivation and cognitive function. Clinical Trial Registration: University Hospital Medical Information Network Clinical Trial Registry (ID: UMIN 000041221).
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Affiliation(s)
- Kentaro Umeda
- Institute of Food Sciences and Technologies, Ajinomoto Co., Inc., Kawasaki 210-8681, Japan; (D.S.); (S.S.); (S.N.)
- Correspondence: (K.U.); (K.S.)
| | - Daichi Shindo
- Institute of Food Sciences and Technologies, Ajinomoto Co., Inc., Kawasaki 210-8681, Japan; (D.S.); (S.S.); (S.N.)
| | - Shinji Somekawa
- Institute of Food Sciences and Technologies, Ajinomoto Co., Inc., Kawasaki 210-8681, Japan; (D.S.); (S.S.); (S.N.)
| | - Shinobu Nishitani
- Institute of Food Sciences and Technologies, Ajinomoto Co., Inc., Kawasaki 210-8681, Japan; (D.S.); (S.S.); (S.N.)
| | - Wataru Sato
- Research Institute for Bioscience Products & Fine Chemicals, Ajinomoto Co., Inc., Kawasaki 210-8681, Japan; (W.S.); (S.T.); (S.K.); (M.K.)
| | - Sakiko Toyoda
- Research Institute for Bioscience Products & Fine Chemicals, Ajinomoto Co., Inc., Kawasaki 210-8681, Japan; (W.S.); (S.T.); (S.K.); (M.K.)
| | - Sachise Karakawa
- Research Institute for Bioscience Products & Fine Chemicals, Ajinomoto Co., Inc., Kawasaki 210-8681, Japan; (W.S.); (S.T.); (S.K.); (M.K.)
| | - Mika Kawasaki
- Research Institute for Bioscience Products & Fine Chemicals, Ajinomoto Co., Inc., Kawasaki 210-8681, Japan; (W.S.); (S.T.); (S.K.); (M.K.)
| | - Tomoyuki Mine
- Research & Business Planning Department, Ajinomoto Co., Inc., Tokyo 104-8315, Japan;
| | - Katsuya Suzuki
- Institute of Food Sciences and Technologies, Ajinomoto Co., Inc., Kawasaki 210-8681, Japan; (D.S.); (S.S.); (S.N.)
- Correspondence: (K.U.); (K.S.)
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Fernández-Serrano AB, Moya-Faz FJ, Giner Alegría CA, Fernández Rodríguez JC. Negative correlation between IL-1β, IL-12 and TNF-γ, and cortisol levels in patients with panic disorder. Brain Behav 2022; 12:e2624. [PMID: 35588458 PMCID: PMC9226804 DOI: 10.1002/brb3.2624] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 03/26/2022] [Accepted: 04/07/2022] [Indexed: 11/06/2022] Open
Abstract
INTRODUCTION Chronic exposure to stress is a major risk factor in anxiety disorders (ADs) and can be accompanied by an altered microbiome-gut-brain axis and a compromised immune system. In recent years, the study of inflammatory processes in AD has gained special attention. Continued stress causes the reactivity of the hypothalamic-pituitary-adrenal (HPA) axis, the alteration of the intestinal microbiota and the consequent release of pro-inflammatory cytokines, affecting the sensitivity to stress and the similar behavior of anxiety. METHOD The aim of the present study was to evaluate the interrelationships between measures of proinflammatory cytokines and cortisol in patients with panic disorder (PD). RESULTS The main results of the correlation analysis revealed that the levels of pro-inflammatory cytokines interleukin (IL)-1β, IL-12, and tumor necrosis factor gamma were negatively correlated with cortisol scores (area under the curve with respect to the ground). CONCLUSIONS These results suggest that the inflammatory response is associated with the reactivity of the HPA axis in patients with PD and may influence the maintenance of anxiety behavior.
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Affiliation(s)
| | - Francisco José Moya-Faz
- Chair of Psychogeriatrics, Department of Health Sciences, Universidad Católica de Murcia UCAM, Murcia, Spain
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Sonali S, Ray B, Ahmed Tousif H, Rathipriya AG, Sunanda T, Mahalakshmi AM, Rungratanawanich W, Essa MM, Qoronfleh MW, Chidambaram SB, Song BJ. Mechanistic Insights into the Link between Gut Dysbiosis and Major Depression: An Extensive Review. Cells 2022; 11:cells11081362. [PMID: 35456041 PMCID: PMC9030021 DOI: 10.3390/cells11081362] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 04/11/2022] [Accepted: 04/12/2022] [Indexed: 12/11/2022] Open
Abstract
Depression is a highly common mental disorder, which is often multifactorial with sex, genetic, environmental, and/or psychological causes. Recent advancements in biomedical research have demonstrated a clear correlation between gut dysbiosis (GD) or gut microbial dysbiosis and the development of anxiety or depressive behaviors. The gut microbiome communicates with the brain through the neural, immune, and metabolic pathways, either directly (via vagal nerves) or indirectly (via gut- and microbial-derived metabolites as well as gut hormones and endocrine peptides, including peptide YY, pancreatic polypeptide, neuropeptide Y, cholecystokinin, corticotropin-releasing factor, glucagon-like peptide, oxytocin, and ghrelin). Maintaining healthy gut microbiota (GM) is now being recognized as important for brain health through the use of probiotics, prebiotics, synbiotics, fecal microbial transplantation (FMT), etc. A few approaches exert antidepressant effects via restoring GM and hypothalamus–pituitary–adrenal (HPA) axis functions. In this review, we have summarized the etiopathogenic link between gut dysbiosis and depression with preclinical and clinical evidence. In addition, we have collated information on the recent therapies and supplements, such as probiotics, prebiotics, short-chain fatty acids, and vitamin B12, omega-3 fatty acids, etc., which target the gut–brain axis (GBA) for the effective management of depressive behavior and anxiety.
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Affiliation(s)
- Sharma Sonali
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India; (S.S.); (B.R.); (H.A.T.); (T.S.); (A.M.M.)
- Centre for Experimental Pharmacology and Toxicology, Central Animal Facility, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India
| | - Bipul Ray
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India; (S.S.); (B.R.); (H.A.T.); (T.S.); (A.M.M.)
- Centre for Experimental Pharmacology and Toxicology, Central Animal Facility, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India
| | - Hediyal Ahmed Tousif
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India; (S.S.); (B.R.); (H.A.T.); (T.S.); (A.M.M.)
- Centre for Experimental Pharmacology and Toxicology, Central Animal Facility, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India
| | | | - Tuladhar Sunanda
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India; (S.S.); (B.R.); (H.A.T.); (T.S.); (A.M.M.)
- Centre for Experimental Pharmacology and Toxicology, Central Animal Facility, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India
| | - Arehally M. Mahalakshmi
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India; (S.S.); (B.R.); (H.A.T.); (T.S.); (A.M.M.)
- Centre for Experimental Pharmacology and Toxicology, Central Animal Facility, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India
| | - Wiramon Rungratanawanich
- Section of Molecular Pharmacology and Toxicology, Laboratory of Membrane Biochemistry and Biophysics, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Rockville, MD 20892, USA;
| | - Musthafa Mohamed Essa
- Department of Food Science and Nutrition, CAMS, Sultan Qaboos University, Muscat 123, Oman;
- Aging and Dementia Research Group, Sultan Qaboos University, Muscat 123, Oman
| | - M. Walid Qoronfleh
- Q3CG Research Institute (QRI), Research and Policy Division, 7227 Rachel Drive, Ypsilant, MI 48917, USA;
| | - Saravana Babu Chidambaram
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India; (S.S.); (B.R.); (H.A.T.); (T.S.); (A.M.M.)
- Centre for Experimental Pharmacology and Toxicology, Central Animal Facility, JSS Academy of Higher Education & Research, Mysuru 570015, Karnataka, India
- Correspondence: (S.B.C.); (B.-J.S.)
| | - Byoung-Joon Song
- Section of Molecular Pharmacology and Toxicology, Laboratory of Membrane Biochemistry and Biophysics, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Rockville, MD 20892, USA;
- Correspondence: (S.B.C.); (B.-J.S.)
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O'Riordan KJ, Collins MK, Moloney GM, Knox EG, Aburto MR, Fülling C, Morley SJ, Clarke G, Schellekens H, Cryan JF. Short chain fatty acids: Microbial metabolites for gut-brain axis signalling. Mol Cell Endocrinol 2022; 546:111572. [PMID: 35066114 DOI: 10.1016/j.mce.2022.111572] [Citation(s) in RCA: 132] [Impact Index Per Article: 66.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 01/07/2022] [Accepted: 01/11/2022] [Indexed: 02/08/2023]
Abstract
The role of the intestinal microbiota as a regulator of gut-brain axis signalling has risen to prominence in recent years. Understanding the relationship between the gut microbiota, the metabolites it produces, and the brain will be critical for the subsequent development of new therapeutic approaches, including the identification of novel psychobiotics. A key focus in this regard have been the short-chain fatty acids (SCFAs) produced by bacterial fermentation of dietary fibre, which include butyrate, acetate, and propionate. Ongoing research is focused on the entry of SCFAs into systemic circulation from the gut lumen, their migration to cerebral circulation and across the blood brain barrier, and their potential to exert acute and chronic effects on brain structure and function. This review aims to discuss our current mechanistic understanding of the direct and indirect influence that SCFAs have on brain function, behaviour and physiology, which will inform future microbiota-targeted interventions for brain disorders.
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Affiliation(s)
| | - Michael K Collins
- APC Microbiome Ireland, University College Cork, Ireland; Department of Anatomy & Neuroscience, University College Cork, Ireland
| | - Gerard M Moloney
- APC Microbiome Ireland, University College Cork, Ireland; Department of Anatomy & Neuroscience, University College Cork, Ireland
| | - Emily G Knox
- APC Microbiome Ireland, University College Cork, Ireland; School of Pharmacy, University College Cork, Ireland
| | - María R Aburto
- APC Microbiome Ireland, University College Cork, Ireland
| | | | - Shane J Morley
- APC Microbiome Ireland, University College Cork, Ireland
| | - Gerard Clarke
- APC Microbiome Ireland, University College Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland
| | - Harriët Schellekens
- APC Microbiome Ireland, University College Cork, Ireland; Department of Anatomy & Neuroscience, University College Cork, Ireland
| | - John F Cryan
- APC Microbiome Ireland, University College Cork, Ireland; Department of Anatomy & Neuroscience, University College Cork, Ireland.
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Perspective: Gestational Tryptophan Fluctuation Altering Neuroembryogenesis and Psychosocial Development. Cells 2022; 11:cells11081270. [PMID: 35455949 PMCID: PMC9032700 DOI: 10.3390/cells11081270] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/05/2022] [Accepted: 04/06/2022] [Indexed: 12/10/2022] Open
Abstract
Tryptophan, as the sole precursor of serotonin, mainly derived from diets, is essential for neurodevelopment and immunomodulation. Gestational tryptophan fluctuation may account for the maternal-fetal transmission in determining neuroembryogenesis with long-lasting effects on psychological development. Personality disorders and social exclusion are related to psychosocial problems, leading to impaired social functioning. However, it is not clear how the fluctuation in mother-child transmission regulates the neuroendocrine development and gut microbiota composition in progeny due to that tryptophan metabolism in pregnant women is affected by multiple factors, such as diets (tryptophan-enriched or -depleted diet), emotional mental states (anxiety, depression), health status (hypertension, diabetes), and social support as well as stresses and management skills. Recently, we have developed a non-mammal model to rationalize those discrepancies without maternal effects. This perspective article outlines the possibility and verified the hypothesis in bully-victim research with this novel model: (1). Summarizes the effects of the maternal tryptophan administration on the neuroendocrine and microbial development in their offspring; (2). Highlights the inconsistency and limitations in studying the relationship between gestational tryptophan exposure and psychosocial development in humans and viviparous animals; and (3). Evidences that embryonic exposure to tryptophan and its metabolite modify bullying interactions in the chicken model. With the current pioneer researches on the biomechanisms underlying the bully-victim interaction, the perspective article provides novel insights for developing appropriate intervention strategies to prevent psychological disorders among individuals, especially those who experienced prenatal stress, by controlling dietary tryptophan and medication therapy during pregnancy.
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Lalonde R, Strazielle C. Probiotic effects on anxiety-like behavior in animal models. Rev Neurosci 2022; 33:691-701. [PMID: 35381125 DOI: 10.1515/revneuro-2021-0173] [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: 12/22/2021] [Accepted: 02/22/2022] [Indexed: 11/15/2022]
Abstract
Gut microbiota have been shown to be useful in treating gastrointestinal diseases, cancer, obesity, infections, and, more recently, neuropsychiatric conditions such as degenerative diseases and depression. There has also been recent expansion in testing probiotics and prebiotics on anxiety-like behaviors in animals. Current results indicate that probiotic substances of the Lactobacillus and Bifidobacterium type are effective in reducing anxiety-like behaviors in mice or rats evaluated in the elevated plus-maze, the open-field, the light-dark box, and conditioned defensive burying. Probiotics are also effective in reducing serum or plasma corticosterone levels after acute stress. It is hypothesized that probiotics cause anxiolytic-like effects via vagal influences on caudal solitary nucleus, periaqueductal gray, central nucleus of the amygdala, and bed nucleus of the stria terminalis. Further experimentation is needed to trace the neurochemical anatomy underlying anxiolytic-like behaviors of gut microbiata exerting effects via vagal or nonvagal pathways.
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Affiliation(s)
- Robert Lalonde
- University of Lorraine, Laboratory of Stress, Immunity, Pathogens (EA7300), Medical School, 54500 Vandœuvre-les-Nancy, France
| | - Catherine Strazielle
- University of Lorraine, Laboratory of Stress, Immunity, Pathogens (EA7300), Medical School, 54500 Vandœuvre-les-Nancy, France.,CHRU Nancy, 54500 Vandœuvre-les-Nancy, France
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Musleh-Vega S, Ojeda J, Vidal PM. Gut Microbiota–Brain Axis as a Potential Modulator of Psychological Stress after Spinal Cord Injury. Biomedicines 2022; 10:biomedicines10040847. [PMID: 35453597 PMCID: PMC9024710 DOI: 10.3390/biomedicines10040847] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 04/01/2022] [Accepted: 04/02/2022] [Indexed: 12/12/2022] Open
Abstract
A growing body of evidence from preclinical and clinical studies has associated alterations of the gut microbiota–brain axis with the progression and development of a number of pathological conditions that also affect cognitive functions. Spinal cord injuries (SCIs) can be produced from traumatic and non-traumatic causes. It has been reported that SCIs are commonly associated with anxiety and depression-like symptoms, showing an incidence range between 11 and 30% after the injury. These psychological stress-related symptoms are associated with worse prognoses in SCIs and have been attributed to psychosocial stressors and losses of independence. Nevertheless, emotional and mental modifications after SCI could be related to changes in the volume of specific brain areas associated with information processing and emotions. Additionally, physiological modifications have been recognized as a predisposing factor for mental health depletion, including the development of gut dysbiosis. This condition of imbalance in microbiota composition has been shown to be associated with depression in clinical and pre-clinical models. Therefore, the understanding of the mechanisms underlying the relationship between SCIs, gut dysbiosis and psychological stress could contribute to the development of novel therapeutic strategies to improve SCI patients’ quality of life.
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The Therapeutic Role of Exercise and Probiotics in Stressful Brain Conditions. Int J Mol Sci 2022; 23:ijms23073610. [PMID: 35408972 PMCID: PMC8998860 DOI: 10.3390/ijms23073610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/14/2022] [Accepted: 03/22/2022] [Indexed: 02/04/2023] Open
Abstract
Oxidative stress has been recognized as a contributing factor in aging and in the progression of multiple neurological disorders such as Parkinson’s disease, Alzheimer’s dementia, ischemic stroke, and head and spinal cord injury. The increased production of reactive oxygen species (ROS) has been associated with mitochondrial dysfunction, altered metal homeostasis, and compromised brain antioxidant defence. All these changes have been reported to directly affect synaptic activity and neurotransmission in neurons, leading to cognitive dysfunction. In this context two non-invasive strategies could be employed in an attempt to improve the aforementioned stressful brain status. In this regard, it has been shown that exercise could increase the resistance against oxidative stress, thus providing enhanced neuroprotection. Indeed, there is evidence suggesting that regular physical exercise diminishes BBB permeability as it reinforces antioxidative capacity, reduces oxidative stress, and has anti-inflammatory effects. However, the differential effects of different types of exercise (aerobic exhausted exercise, anaerobic exercise, or the combination of both types) and the duration of physical activity will be also addressed in this review as likely determinants of therapeutic efficacy. The second proposed strategy is related to the use of probiotics, which can also reduce some biomarkers of oxidative stress and inflammatory cytokines, although their underlying mechanisms of action remain unclear. Moreover, various probiotics produce neuroactive molecules that directly or indirectly impact signalling in the brain. In this review, we will discuss how physical activity can be incorporated as a component of therapeutic strategies in oxidative stress-based neurological disorders along with the augmentation of probiotics intake.
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Edebol Carlman HMT, Rode J, König J, Repsilber D, Hutchinson AN, Thunberg P, Persson J, Kiselev A, Pruessner JC, Brummer RJ. Probiotic Mixture Containing Lactobacillus helveticus, Bifidobacterium longum and Lactiplantibacillus plantarum Affects Brain Responses to an Arithmetic Stress Task in Healthy Subjects: A Randomised Clinical Trial and Proof-of-Concept Study. Nutrients 2022; 14:nu14071329. [PMID: 35405944 PMCID: PMC9002567 DOI: 10.3390/nu14071329] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/14/2022] [Accepted: 03/17/2022] [Indexed: 02/04/2023] Open
Abstract
Probiotics are suggested to impact physiological and psychological stress responses by acting on the gut-brain axis. We investigated if a probiotic product containing Bifidobacterium longum R0175, Lactobacillus helveticus R0052 and Lactiplantibacillus plantarum R1012 affected stress processing in a double-blinded, randomised, placebo-controlled, crossover proof-of-concept study (NCT03615651). Twenty-two healthy subjects (24.2 ± 3.4 years, 6 men/16 women) underwent a probiotic and placebo intervention for 4 weeks each, separated by a 4-week washout period. Subjects were examined by functional magnetic resonance imaging while performing the Montreal Imaging Stress Task (MIST) as well as an autonomic nervous system function assessment during the Stroop task. Reduced activation in regions of the lateral orbital and ventral cingulate gyri was observed after probiotic intervention compared to placebo. Significantly increased functional connectivity was found between the upper limbic region and medioventral area. Interestingly, probiotic intervention seemed to predominantly affect the initial stress response. Salivary cortisol secretion during the task was not altered. Probiotic intervention did not affect cognitive performance and autonomic nervous system function during Stroop. The probiotic intervention was able to subtly alter brain activity and functional connectivity in regions known to regulate emotion and stress responses. These findings support the potential of probiotics as a non-pharmaceutical treatment modality for stress-related disorders.
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Affiliation(s)
- Hanna M. T. Edebol Carlman
- Nutrition-Gut-Brain Interactions Research Centre, Faculty of Medicine and Health, School of Medical Sciences, Örebro University, 70182 Örebro, Sweden; (H.M.T.E.C.); (J.K.); (D.R.); (A.N.H.); (R.J.B.)
| | - Julia Rode
- Nutrition-Gut-Brain Interactions Research Centre, Faculty of Medicine and Health, School of Medical Sciences, Örebro University, 70182 Örebro, Sweden; (H.M.T.E.C.); (J.K.); (D.R.); (A.N.H.); (R.J.B.)
- Correspondence: ; Tel.: +46-1930-3817
| | - Julia König
- Nutrition-Gut-Brain Interactions Research Centre, Faculty of Medicine and Health, School of Medical Sciences, Örebro University, 70182 Örebro, Sweden; (H.M.T.E.C.); (J.K.); (D.R.); (A.N.H.); (R.J.B.)
| | - Dirk Repsilber
- Nutrition-Gut-Brain Interactions Research Centre, Faculty of Medicine and Health, School of Medical Sciences, Örebro University, 70182 Örebro, Sweden; (H.M.T.E.C.); (J.K.); (D.R.); (A.N.H.); (R.J.B.)
| | - Ashley N. Hutchinson
- Nutrition-Gut-Brain Interactions Research Centre, Faculty of Medicine and Health, School of Medical Sciences, Örebro University, 70182 Örebro, Sweden; (H.M.T.E.C.); (J.K.); (D.R.); (A.N.H.); (R.J.B.)
| | - Per Thunberg
- Department of Radiology and Medical Physics, Faculty of Medicine and Health, School of Medical Sciences, Örebro University, 70182 Örebro, Sweden;
| | - Jonas Persson
- Center for Lifespan Developmental Research (LEADER), Faculty of Humanities and Social Sciences, School of Law, Psychology and Social Work, Örebro University, 70182 Örebro, Sweden;
| | - Andrey Kiselev
- Center for Applied Autonomous Sensor Systems, Faculty for Business, Science and Engineering, School of Natural Science and Technology, Örebro University, 70182 Örebro, Sweden;
| | - Jens C. Pruessner
- Douglas Institute, McGill University, Montréal, QC H4H1R3, Canada;
- Department of Psychology, University of Konstanz, 78457 Konstanz, Germany
| | - Robert J. Brummer
- Nutrition-Gut-Brain Interactions Research Centre, Faculty of Medicine and Health, School of Medical Sciences, Örebro University, 70182 Örebro, Sweden; (H.M.T.E.C.); (J.K.); (D.R.); (A.N.H.); (R.J.B.)
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Vellingiri B, Aishwarya SY, Benita Jancy S, Sriram Abhishek G, Winster Suresh Babu H, Vijayakumar P, Narayanasamy A, Mariappan S, Sangeetha R, Valsala Gopalakrishnan A, Parthasarathi R, Iyer M. An anxious relationship between Autism Spectrum Disorder and Gut Microbiota: A tangled chemistry? J Clin Neurosci 2022; 99:169-189. [PMID: 35286970 DOI: 10.1016/j.jocn.2022.03.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 03/01/2022] [Accepted: 03/02/2022] [Indexed: 12/27/2022]
Abstract
Autism spectrum disorder (ASD) is a serious multifactorial neurodevelopmental disorder often accompanied by strained social communication, repetitive behaviour, immune dysregulation, and gastrointestinal (GI) issues. Recent studies have recorded a link between dysbiosis in the gut microbiota (gm) and the primary stages of ASD. A bidirectional connection (also called microbiota-gut-brain-axis) exchanges information between the gut bacteria and central nervous system. When the homeostasis of the microenvironment of the gut is dysregulated, it causes oxidative stress, affecting neuronal cells and neurotransmitters, thereby causing neurodevelopmental disorders. Studies have confirmed a difference in the constitution of gut bacteria among ASD cases and their controls. Numerous studies on animal models of ASD have shown altered gm and its association with abnormal metabolite profile and altered behaviour phenotype. This process happens due to an abnormal metabolite production in gm, leading to changes in the immune system, especially in ASD. Hence, this review aims to question the current knowledge on gm dysbiosis and its related GI discomforts and ASD behavioural symptoms and shed light on the possible therapeutic approaches available to deal with this situation. Thereby, though it is understood that more research might be needed to prove an association or causal relationship between gm and ASD, therapy with the microbiome may also be considered as an effective strategy to combat this issue.
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Affiliation(s)
- Balachandar Vellingiri
- Human Molecular Cytogenetics and Stem Cell Laboratory, Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India.
| | - S Y Aishwarya
- Department of Biotechnology, Sri Shakthi Institute of Engineering and Technology, Coimbatore 641062, Tamil Nadu, India
| | - S Benita Jancy
- Department of Biotechnology, Sri Shakthi Institute of Engineering and Technology, Coimbatore 641062, Tamil Nadu, India
| | - G Sriram Abhishek
- Department of Biotechnology, Sri Shakthi Institute of Engineering and Technology, Coimbatore 641062, Tamil Nadu, India
| | - Harysh Winster Suresh Babu
- Human Molecular Cytogenetics and Stem Cell Laboratory, Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India; Disease Proteomics Laboratory, Department of Zoology, Bharathiar University, Coimbatore 641046, Tamil Nadu, India
| | - Padmavathi Vijayakumar
- Human Molecular Cytogenetics and Stem Cell Laboratory, Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India
| | - Arul Narayanasamy
- Disease Proteomics Laboratory, Department of Zoology, Bharathiar University, Coimbatore 641046, Tamil Nadu, India
| | - Sujitha Mariappan
- Department of Biotechnology, Sri Shakthi Institute of Engineering and Technology, Coimbatore 641062, Tamil Nadu, India
| | - R Sangeetha
- Department of Zoology and Wild Life Biology, Government Arts College, Udhagamandalam 643002, India
| | - Abilash Valsala Gopalakrishnan
- Department of Biomedical Sciences, School of Biosciences and Technology, Vellore Institute of Technology, Vellore 632014 Tamil Nadu, India
| | - Ramakrishnan Parthasarathi
- Computational Toxicology Facility, Centre for Innovation and Translational Research, Environmental Monitoring and Intervention Hub (DSIR-CRTDH), CSIR-Indian Institute of Toxicology Research, Lucknow 226001 Uttar Pradesh, India
| | - Mahalaxmi Iyer
- Livestock Farming and Bioresource Technology, Tamil Nadu, India.
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50
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Mohr AE, Pugh J, O'Sullivan O, Black K, Townsend JR, Pyne DB, Wardenaar FC, West NP, Whisner CM, McFarland LV. Best Practices for Probiotic Research in Athletic and Physically Active Populations: Guidance for Future Randomized Controlled Trials. Front Nutr 2022; 9:809983. [PMID: 35350412 PMCID: PMC8957944 DOI: 10.3389/fnut.2022.809983] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 01/26/2022] [Indexed: 12/12/2022] Open
Abstract
Probiotic supplementation, traditionally used for the prevention or treatment of a variety of disease indications, is now recognized in a variety of population groups including athletes and those physically active for improving general health and performance. However, experimental and clinical trials with probiotics commonly suffer from design flaws and different outcome measures, making comparison and synthesis of conclusions difficult. Here we review current randomized controlled trials (RCTs) using probiotics for performance improvement, prevention of common illnesses, or general health, in a specific target population (athletes and those physically active). Future RCTs should address the key elements of (1) properly defining and characterizing a probiotic intervention, (2) study design factors, (3) study population characteristics, and (4) outcome measures, that will allow valid conclusions to be drawn. Careful evaluation and implementation of these elements should yield improved trials, which will better facilitate the generation of evidence-based probiotic supplementation recommendations for athletes and physically active individuals.
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Affiliation(s)
- Alex E. Mohr
- College of Health Solutions, Arizona State University, Phoenix, AZ, United States
- *Correspondence: Alex E. Mohr
| | - Jamie Pugh
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, United Kingdom
| | - Orla O'Sullivan
- Teagasc Food Research Centre, Moorepark, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Katherine Black
- Department of Human Nutrition, University of Otago, Dunedin, New Zealand
| | - Jeremy R. Townsend
- Exercise and Nutrition Science Graduate Program, Lipscomb University, Nashville, TN, United States
| | - David B. Pyne
- Research Institute for Sport and Exercise, University of Canberra, Canberra, ACT, Australia
| | - Floris C. Wardenaar
- College of Health Solutions, Arizona State University, Phoenix, AZ, United States
| | - Nicholas P. West
- School of Medical Science and Menzies Health Institute of QLD, Griffith Health, Griffith University, Southport, QLD, Australia
| | - Corrie M. Whisner
- College of Health Solutions, Arizona State University, Phoenix, AZ, United States
| | - Lynne V. McFarland
- Department of Medicinal Chemistry, University of Washington, Seattle, WA, United States
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