151
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Costantini L, Molinari R, Farinon B, Merendino N. Impact of Omega-3 Fatty Acids on the Gut Microbiota. Int J Mol Sci 2017; 18:ijms18122645. [PMID: 29215589 PMCID: PMC5751248 DOI: 10.3390/ijms18122645] [Citation(s) in RCA: 405] [Impact Index Per Article: 57.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 11/14/2017] [Accepted: 12/01/2017] [Indexed: 12/12/2022] Open
Abstract
Long-term dietary habits play a crucial role in creating a host-specific gut microbiota community in humans. Despite the many publications about the effects of carbohydrates (prebiotic fibers), the impact of dietary fats, such as omega-3 polyunsaturated fatty acids (PUFAs), on the gut microbiota is less well defined. The few studies completed in adults showed some common changes in the gut microbiota after omega-3 PUFA supplementation. In particular, a decrease in Faecalibacterium, often associated with an increase in the Bacteroidetes and butyrate-producing bacteria belonging to the Lachnospiraceae family, has been observed. Coincidentally, a dysbiosis of these taxa is found in patients with inflammatory bowel disease. Omega-3 PUFAs can exert a positive action by reverting the microbiota composition in these diseases, and increase the production of anti-inflammatory compounds, like short-chain fatty acids. In addition, accumulating evidence in animal model studies indicates that the interplay between gut microbiota, omega-3 fatty acids, and immunity helps to maintain the intestinal wall integrity and interacts with host immune cells. Finally, human and animal studies have highlighted the ability of omega-3 PUFAs to influence the gut–brain axis, acting through gut microbiota composition. From these findings, the importance of the omega-3 connection to the microbiota emerges, encouraging further studies.
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Affiliation(s)
- Lara Costantini
- Department of Ecological and Biological Sciences (DEB), Tuscia University, Largo dell'Università snc, 01100 Viterbo, Italy.
| | - Romina Molinari
- Department of Ecological and Biological Sciences (DEB), Tuscia University, Largo dell'Università snc, 01100 Viterbo, Italy.
| | - Barbara Farinon
- Department of Ecological and Biological Sciences (DEB), Tuscia University, Largo dell'Università snc, 01100 Viterbo, Italy.
| | - Nicolò Merendino
- Department of Ecological and Biological Sciences (DEB), Tuscia University, Largo dell'Università snc, 01100 Viterbo, Italy.
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152
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Villamil SI, Huerlimann R, Morianos C, Sarnyai Z, Maes GE. Adverse effect of early-life high-fat/high-carbohydrate ("Western") diet on bacterial community in the distal bowel of mice. Nutr Res 2017. [PMID: 29540269 DOI: 10.1016/j.nutres.2017.11.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Obesity and other lifestyle diseases in modern society can be related to historical dietary changes from diets balanced in omega-6 and omega-3 to the unbalanced "Western-type" diet. It is recognized that diet influences the murine and human gut microbiome, and most research indicates that microbial diversity and composition are altered by high-fat diets (HFDs). However, good knowledge about the effects of early exposure to HFD on the maturation and structure of the bacterial community is limited. Using mice as model, we hypothesized that an HFD alters the early dynamic of the gut bacterial community toward an unstable/unhealthy state. By sequencing the V3 and V4 regions of the 16S ribosomal ribonucleic acid gene, we investigated the bacterial community in fecal samples of mice fed a control diet and an HFD at weaning (sampling time 1) and after 8 weeks of dietary intervention (11weeks of age; sampling time 2). Natural temporal microbiome maturation was evidenced by a general increase in microbial diversity and shifts in microbial community between sampling times 1 and 2 toward a mature community. However, the HFD led to significant structural segregation of the microbiome compared with controls; the HFD diet repressed health-enhancing bacteria (eg, Bifidobacterium and Akkermansia) and promoted health-detracting bacteria (ie, those associated with gut disorders, eg, Dorea). We suggest that early-life consumption of HFD negatively impacts the natural gut bacterial community maturation leading toward a potentially persistent unhealthy stage.
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Affiliation(s)
- Sandra Infante Villamil
- College of Sciences and Engineering, Comparative Genomics Centre, James Cook University, Townsville, 4811, Queensland, Australia
| | - Roger Huerlimann
- College of Sciences and Engineering, Comparative Genomics Centre, James Cook University, Townsville, 4811, Queensland, Australia
| | - Christina Morianos
- Laboratory of Psychiatric Neuroscience, and Comparative Genomics Centre, Australian Institute of Tropical Health and Medicine; College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, Queensland, Australia
| | - Zoltan Sarnyai
- Laboratory of Psychiatric Neuroscience, and Comparative Genomics Centre, Australian Institute of Tropical Health and Medicine; College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, Queensland, Australia.
| | - Gregory E Maes
- College of Sciences and Engineering, Comparative Genomics Centre, James Cook University, Townsville, 4811, Queensland, Australia; Laboratory of Biodiversity and Evolutionary Genomics, University of Leuven (KU Leuven), B-3000 Leuven, Belgium.; Center for Human Genetics, UZ Leuven-Genomics Core, KU Leuven, Herestraat 49, 3000 Leuven, Belgium.
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153
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Deficiency of essential dietary n-3 PUFA disrupts the caecal microbiome and metabolome in mice. Br J Nutr 2017; 118:959-970. [PMID: 29173237 DOI: 10.1017/s0007114517002999] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
n-3 PUFA are lipids that play crucial roles in immune-regulation, cardio-protection and neurodevelopment. However, little is known about the role that these essential dietary fats play in modulating caecal microbiota composition and the subsequent production of functional metabolites. To investigate this, female C57BL/6 mice were assigned to one of three diets (control (CON), n-3 supplemented (n3+) or n-3 deficient (n3-)) during gestation, following which their male offspring were continued on the same diets for 12 weeks. Caecal content of mothers and offspring were collected for 16S sequencing and metabolic phenotyping. n3- male offspring displayed significantly less % fat mass than n3+ and CON. n-3 Status also induced a number of changes to gut microbiota composition such that n3- offspring had greater abundance of Tenericutes, Anaeroplasma and Coriobacteriaceae. Metabolomics analysis revealed an increase in caecal metabolites involved in energy metabolism in n3+ including α-ketoglutaric acid, malic acid and fumaric acid. n3- animals displayed significantly reduced acetate, butyrate and total caecal SCFA production. These results demonstrate that dietary n-3 PUFA regulate gut microbiota homoeostasis whereby n-3 deficiency may induce a state of disturbance. Further studies are warranted to examine whether these microbial and metabolic disturbances are causally related to changes in metabolic health outcomes.
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154
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Aguayo-Patrón SV, Calderón de la Barca AM. Old Fashioned vs. Ultra-Processed-Based Current Diets: Possible Implication in the Increased Susceptibility to Type 1 Diabetes and Celiac Disease in Childhood. Foods 2017; 6:foods6110100. [PMID: 29140275 PMCID: PMC5704144 DOI: 10.3390/foods6110100] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 10/27/2017] [Accepted: 11/08/2017] [Indexed: 01/14/2023] Open
Abstract
Ultra-processed foods are ready-to-heat and ready-to-eat products created to replace traditional homemade meals and dishes due to convenience and accessibility. Because of their low-fiber and high-fat and sugar composition, these foodstuffs could induce a negative impact on health. They are partially responsible for obesity and chronic non-transmissible diseases; additionally, they could impact in the prevalence of autoimmune diseases such as type 1 diabetes and celiac disease. The rationale is that the nutritional composition of ultra-processed foodstuffs can induce gut dysbiosis, promoting a pro-inflammatory response and consequently, a “leaky gut”. These factors have been associated with increased risk of autoimmunity in genetically predisposed children. In addition, food emulsifiers, commonly used in ultra-processed products could modify the gut microbiota and intestinal permeability, which could increase the risk of autoimmunity. In contrast, unprocessed and minimally processed food-based diets have shown the capacity to promote gut microbiota eubiosis, anti-inflammatory response, and epithelial integrity, through bacterial butyrate production. Thus, to decrease the susceptibility to autoimmunity, genetically predisposed children should avoid ultra-processed food products and encourage the consumption of fresh and minimally processed foods.
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Affiliation(s)
- Sandra V Aguayo-Patrón
- Departamento de Nutrición y Metabolismo, Centro de Investigación en Alimentación y Desarrollo, A.C., Carretera a La Victoria, Km. 0.6, Hermosillo, Sonora 83304, Mexico.
| | - Ana M Calderón de la Barca
- Departamento de Nutrición y Metabolismo, Centro de Investigación en Alimentación y Desarrollo, A.C., Carretera a La Victoria, Km. 0.6, Hermosillo, Sonora 83304, Mexico.
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155
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Bailey MT, Cryan JF. The microbiome as a key regulator of brain, behavior and immunity: Commentary on the 2017 named series. Brain Behav Immun 2017; 66:18-22. [PMID: 28843452 DOI: 10.1016/j.bbi.2017.08.017] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 08/22/2017] [Indexed: 02/08/2023] Open
Abstract
The focus on the microbiome for the 2017 Named Series in Brain, Behavior, and Immunity reflects the rapidly growing interest in commensal microbes and the effects that they can have on physiological processes often studied in PsychoNeuroImmunology Research. The studies included in this Named Series show that commensal microbes can impact immune system activity, as well as brain and behavioral processes across the lifespan, and are involved in behavioral and immunological responses to social stresses. The studies also show that dietary effects on brain, behavior, and immunity often involve alterations of the gut microbiota. Thus, diet can be used therapeutically for diseases and conditions involving the brain, behavior, and immunity, as can treatment with both pre- and probiotics. While this has been widely tested in animal models, fewer studies have focused on pre- and probiotic treatment in humans. The studies in this Named Series highlight the challenges of probiotic research in human populations, but also highlight the future promise of probiotics for human health. While emotional disorders, such as anxiety and depression have been often been linked to alterations in the gut microbiota, studies in this Named Series identify new domains involving interactions between the microbiota, brain, behavior, and immunity, including schizophrenia, traumatic brain injury, and stroke. As a whole, this collection of work demonstrates the importance of the microbiome in regulating key aspects of immunity, brain, and behavior, and provides important rationale for extending the work so that findings can be translated into clinical practice.
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Affiliation(s)
- Michael T Bailey
- Center for Microbial Pathogenesis, The Research Institute at Nationwide Children's Hospital, Columbus, OH 43205, United States; Department of Pediatrics, The Ohio State University College of Medicine, Columbus, OH 43210 3, United States; Institute for Behavioral Medicine Research, The Ohio State University College of Medicine, Columbus, OH 43210, United States.
| | - John F Cryan
- APC Microbiome Institute, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
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156
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Tremblay RE, Vitaro F, Côté SM. Developmental Origins of Chronic Physical Aggression: A Bio-Psycho-Social Model for the Next Generation of Preventive Interventions. Annu Rev Psychol 2017; 69:383-407. [PMID: 29035692 DOI: 10.1146/annurev-psych-010416-044030] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
This review describes a bio-psycho-social approach to understanding and preventing the development of chronic physical aggression. The debate on the developmental origins of aggression has historically opposed genetic and environmental mechanisms. Recent studies have shown that the frequency of physical aggression peaks in early childhood and then decreases until old age. Molecular genetic studies and twin studies have confirmed important genetic influences. However, recent epigenetic studies have highlighted the important role of environments in gene expression and brain development. These studies suggest that interrelated bio-psycho-social channels involved in the development of chronic physical aggression are generally the product of an intergenerational transmission process occurring through assortative mating, genetic inheritance, and the inheritance of physical and social environmental conditions that handicap brain functioning and support the use of physical aggression to solve problems. Given these intergenerational mechanisms and physical aggression onset in infancy, it appears clear that preventive interventions should start early in pregnancy, at the latest.
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Affiliation(s)
- Richard E Tremblay
- Department of Pediatrics and Department of Psychology, University of Montreal, Montreal QC H3T 1J4, Canada;
| | - Frank Vitaro
- School of Psychoeducation, University of Montreal, Montreal QC H3T 1J4, Canada;
| | - Sylvana M Côté
- Department of Social and Preventive Medicine, University of Montreal, Montreal QC H3T 1J4, Canada; .,INSERM U1219, University of Bordeaux, 33400 Talence, France
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157
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Burokas A, Arboleya S, Moloney RD, Peterson VL, Murphy K, Clarke G, Stanton C, Dinan TG, Cryan JF. Targeting the Microbiota-Gut-Brain Axis: Prebiotics Have Anxiolytic and Antidepressant-like Effects and Reverse the Impact of Chronic Stress in Mice. Biol Psychiatry 2017; 82:472-487. [PMID: 28242013 DOI: 10.1016/j.biopsych.2016.12.031] [Citation(s) in RCA: 584] [Impact Index Per Article: 83.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 12/28/2016] [Accepted: 12/29/2016] [Indexed: 02/08/2023]
Abstract
BACKGROUND The realization that the microbiota-gut-brain axis plays a critical role in health and disease, including neuropsychiatric disorders, is rapidly advancing. Nurturing a beneficial gut microbiome with prebiotics, such as fructo-oligosaccharides (FOS) and galacto-oligosaccharides (GOS), is an appealing but underinvestigated microbiota manipulation. Here we tested whether chronic prebiotic treatment modifies behavior across domains relevant to anxiety, depression, cognition, stress response, and social behavior. METHODS C57BL/6J male mice were administered FOS, GOS, or a combination of FOS+GOS for 3 weeks prior to testing. Plasma corticosterone, microbiota composition, and cecal short-chain fatty acids were measured. In addition, FOS+GOS- or water-treated mice were also exposed to chronic psychosocial stress, and behavior, immune, and microbiota parameters were assessed. RESULTS Chronic prebiotic FOS+GOS treatment exhibited both antidepressant and anxiolytic effects. Moreover, the administration of GOS and the FOS+GOS combination reduced stress-induced corticosterone release. Prebiotics modified specific gene expression in the hippocampus and hypothalamus. Regarding short-chain fatty acid concentrations, prebiotic administration increased cecal acetate and propionate and reduced isobutyrate concentrations, changes that correlated significantly with the positive effects seen on behavior. Moreover, FOS+GOS reduced chronic stress-induced elevations in corticosterone and proinflammatory cytokine levels and depression-like and anxiety-like behavior in addition to normalizing the effects of stress on the microbiota. CONCLUSIONS Taken together, these data strongly suggest a beneficial role of prebiotic treatment for stress-related behaviors. These findings strengthen the evidence base supporting therapeutic targeting of the gut microbiota for brain-gut axis disorders, opening new avenues in the field of nutritional neuropsychopharmacology.
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Affiliation(s)
| | - Silvia Arboleya
- APC Microbiome Institute, University College Cork, Cork; Teagasc Food Research Centre, Biosciences Department, Moorepark, Fermoy, Ireland
| | | | - Veronica L Peterson
- APC Microbiome Institute, University College Cork, Cork; Department of Psychiatry and Neurobehavioral Science, University College Cork, Cork; Department of Anatomy and Neuroscience, University College Cork, Cork
| | - Kiera Murphy
- Teagasc Food Research Centre, Biosciences Department, Moorepark, Fermoy, Ireland
| | - Gerard Clarke
- APC Microbiome Institute, University College Cork, Cork
| | - Catherine Stanton
- APC Microbiome Institute, University College Cork, Cork; Teagasc Food Research Centre, Biosciences Department, Moorepark, Fermoy, Ireland
| | | | - John F Cryan
- APC Microbiome Institute, University College Cork, Cork; Department of Psychiatry and Neurobehavioral Science, University College Cork, Cork; Department of Anatomy and Neuroscience, University College Cork, Cork.
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158
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Do bacteria shape our development? Crosstalk between intestinal microbiota and HPA axis. Neurosci Biobehav Rev 2017; 83:458-471. [PMID: 28918360 DOI: 10.1016/j.neubiorev.2017.09.016] [Citation(s) in RCA: 127] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 09/01/2017] [Accepted: 09/12/2017] [Indexed: 02/08/2023]
Abstract
The human body contains as many bacteria in the intestine as the total number of human body cells. These bacteria have a central position in human health and disease, and would also play a role in the regulation of emotions, behavior, and even higher cognitive functions. The Hypothalamic-Pituitary-Adrenal axis (HPA axis) is a major physiological stress system that produces cortisol. This hormone is involved in responding to environmental stress and also shapes many aspects of brain development. Both the HPA axis and the intestinal microbiota show rapid and profound developmental changes during the first years of life. Early environmental disturbances can affect the development of both systems. Early adversity, for example, is known to lead to later unbalances in both, as well as to psychopathological behavior and emotions. The goal of this theoretical review is to summarize current knowledge on the developmental crosstalk between the intestinal microbiota and the HPA axis, providing a basis for understanding the development and bidirectional communication between these two essential systems in human functioning.
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159
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Abstract
PURPOSE OF REVIEW According to the WHO reports, around 350 million people worldwide suffer from depression. Despite its high prevalence, the complex interaction of multiple mechanisms underlying depression still needs to be elucidated. RECENT FINDINGS Over the course of the last few years, several neurobiological alterations have been linked to the development and maintenance of depression. One basic process that seems to link many of these findings is inflammation. Chronic inflammation has been associated with both biological factors such as excessive neurotransmitter concentrations as well as psychological processes such as adult stress reactivity and a history of childhood trauma. As a balanced microbial community, modulated by diet, is a key regulator of the host physiology, it seems likely that gut microbiota plays a role in depression. SUMMARY The review summarizes the existent literature on this emerging research field and provides a comprehensive overview of the multifaceted links between the microbiota, diet, and depression. Several pathways linking early life trauma, pharmacological treatment effects, and nutrition to the microbiome in depression are described aiming to foster the psychotherapeutic treatment of depressed patients by interventions targeting the microbiota.
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160
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Zhou S, Wang Y, Jacoby JJ, Jiang Y, Zhang Y, Yu LL. Effects of Medium- and Long-Chain Triacylglycerols on Lipid Metabolism and Gut Microbiota Composition in C57BL/6J Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:6599-6607. [PMID: 28704610 DOI: 10.1021/acs.jafc.7b01803] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Obesity is related to an increasing risk of chronic diseases. Medium- and long-chain triacylglycerols (MLCT) have been recognized as a promising choice to reduce body weight. In this study, three MLCT with different contents of medium-chain fatty acids (MCFA) (10-30%, w/w) were prepared, and their effects on lipid metabolism and fecal gut microbiota composition of C57BL/6J mice were systematically investigated. MLCT with 30% (w/w) MCFA showed the best performance in decreasing body weight gain as well as optimizing serum lipid parameters and liver triacylglycerol content. The expression levels of genes encoding enzymes for fatty acid degradation increased markedly and expression levels of genes encoding enzymes for de novo fatty acid biosynthesis decreased significantly in the liver of mice treated with MLCT containing 30% (w/w) MCFA. Interestingly, the dietary intake of a high fat diet containing MLCT did significantly decrease the ratio of Firmicutes to Bacteroidetes and down-regulate the relative abundance of Proteobacteria that may attribute to weight loss. Furthermore, we found a notable increase in the total short-chain fatty acid (SCFA) content in feces of mice on a MLCT containing diet. All these results may be concomitantly responsible for the antiobesity effect of MLCT with relatively high contents of MCFA.
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Affiliation(s)
- Shengmin Zhou
- Institute of Food and Nutraceutical Science, School of Agriculture and Biology, Shanghai Jiao Tong University , Shanghai, 200240, China
| | - Yueqiang Wang
- Wilmar (Shanghai) Biotechnology Research & Development Center Co., Ltd. , Shanghai, 200137, China
| | - Jörg J Jacoby
- Wilmar (Shanghai) Biotechnology Research & Development Center Co., Ltd. , Shanghai, 200137, China
| | - Yuanrong Jiang
- Wilmar (Shanghai) Biotechnology Research & Development Center Co., Ltd. , Shanghai, 200137, China
| | - Yaqiong Zhang
- Institute of Food and Nutraceutical Science, School of Agriculture and Biology, Shanghai Jiao Tong University , Shanghai, 200240, China
| | - Liangli Lucy Yu
- Department of Nutrition and Food Science, University of Maryland , College Park, Maryland 20742, United States
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161
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Sherwin E, Dinan TG, Cryan JF. Recent developments in understanding the role of the gut microbiota in brain health and disease. Ann N Y Acad Sci 2017; 1420:5-25. [PMID: 28768369 DOI: 10.1111/nyas.13416] [Citation(s) in RCA: 180] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Revised: 05/16/2017] [Accepted: 05/22/2017] [Indexed: 12/21/2022]
Abstract
There is a growing appreciation of the role of the gut microbiota in all aspects of health and disease, including brain health. Indeed, roles for the bacterial commensals in various psychiatric and neurological conditions, such as depression, autism, stroke, Parkinson's disease, and Alzheimer's disease, are emerging. Microbiota dysregulation has been documented in all of these conditions or in animal models thereof. Moreover, depletion or modulation of the gut microbiota can affect the severity of the central pathology or behavioral deficits observed in a variety of brain disorders. However, the mechanisms underlying such effects are only slowly being unraveled. Additionally, recent preclinical and clinical evidence suggest that targeting the microbiota through prebiotic, probiotic, or dietary interventions may be an effective "psychobiotic" strategy for treating symptoms in mood, neurodevelopmental disorders, and neurodegenerative diseases.
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Affiliation(s)
- Eoin Sherwin
- APC Microbiome Institute, University College Cork, Cork, Ireland
| | - Timothy G Dinan
- APC Microbiome Institute, University College Cork, Cork, Ireland.,Department of Psychiatry and Neurobehavioural Sciences, University College Cork, Cork, Ireland
| | - John F Cryan
- APC Microbiome Institute, University College Cork, Cork, Ireland.,Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
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162
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Hamel AF, Menard MT, Novak MA. Fatty acid supplements improve hair coat condition in rhesus macaques. J Med Primatol 2017; 46:248-251. [PMID: 28464359 DOI: 10.1111/jmp.12271] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/26/2017] [Indexed: 02/04/2023]
Abstract
As captive rhesus macaques often exhibit hair loss, alopecia was quantified and behavior was recorded before, during, and after fatty acid supplementation in six macaques. Fatty acid treatment was associated with a decrease in alopecia and in self-grooming behavior. Therefore, fatty acids may be a viable treatment for alopecia in some captive primates.
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Affiliation(s)
- A F Hamel
- Department of Psychological and Brain Sciences, University of Massachusetts Amherst, Amherst, MA, USA
| | - M T Menard
- Department of Psychological and Brain Sciences, University of Massachusetts Amherst, Amherst, MA, USA
| | - M A Novak
- Department of Psychological and Brain Sciences, University of Massachusetts Amherst, Amherst, MA, USA
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163
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Dahan S, Segal Y, Shoenfeld Y. Dietary factors in rheumatic autoimmune diseases: a recipe for therapy? Nat Rev Rheumatol 2017; 13:348-358. [PMID: 28405001 DOI: 10.1038/nrrheum.2017.42] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Today, we are facing a new era of digitization in the health care system, and with increased access to health care information has come a growing demand for safe, cost-effective and easy to administer therapies. Dietary habits have a crucial influence on human health, affecting an individual's risk for hypertension, heart disease and stroke, as well as influencing the risk of developing of cancer. Moreover, an individual's lifestyle choices can greatly influence the progression and manifestation of chronic autoimmune rheumatic diseases. In light of these effects, it makes sense that the search for additional therapies to attenuate such diseases would include investigations into lifestyle modifications. When considering the complex web of factors that influence autoimmunity, it is not surprising to find that several dietary elements are involved in disease progression or prevention. In this Review, several common nutritional components of the human diet are presented, and the evidence for their effects on rheumatic diseases is discussed.
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Affiliation(s)
- Shani Dahan
- The Zabludowicz Centre for Autoimmune Diseases, Chaim Sheba Medical Centre, Derech Sheba 2, Tel-Hashomer, Ramat-Gan 52621, Israel
| | - Yahel Segal
- The Zabludowicz Centre for Autoimmune Diseases, Chaim Sheba Medical Centre, Derech Sheba 2, Tel-Hashomer, Ramat-Gan 52621, Israel
| | - Yehuda Shoenfeld
- The Zabludowicz Centre for Autoimmune Diseases, Chaim Sheba Medical Centre, Derech Sheba 2, Tel-Hashomer, Ramat-Gan 52621, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Tel Aviv 69978, Israel
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164
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Allen AP, Dinan TG, Clarke G, Cryan JF. A psychology of the human brain-gut-microbiome axis. SOCIAL AND PERSONALITY PSYCHOLOGY COMPASS 2017; 11:e12309. [PMID: 28804508 PMCID: PMC5530613 DOI: 10.1111/spc3.12309] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 01/25/2017] [Accepted: 02/11/2017] [Indexed: 12/15/2022]
Abstract
In recent years, we have seen increasing research within neuroscience and biopsychology on the interactions between the brain, the gastrointestinal tract, the bacteria within the gastrointestinal tract, and the bidirectional relationship between these systems: the brain-gut-microbiome axis. Although research has demonstrated that the gut microbiota can impact upon cognition and a variety of stress-related behaviours, including those relevant to anxiety and depression, we still do not know how this occurs. A deeper understanding of how psychological development as well as social and cultural factors impact upon the brain-gut-microbiome axis will contextualise the role of the axis in humans and inform psychological interventions that improve health within the brain-gut-microbiome axis. Interventions ostensibly aimed at ameliorating disorders in one part of the brain-gut-microbiome axis (e.g., psychotherapy for depression) may nonetheless impact upon other parts of the axis (e.g., microbiome composition and function), and functional gastrointestinal disorders such as irritable bowel syndrome represent a disorder of the axis, rather than an isolated problem either of psychology or of gastrointestinal function. The discipline of psychology needs to be cognisant of these interactions and can help to inform the future research agenda in this emerging field of research. In this review, we outline the role psychology has to play in understanding the brain-gut-microbiome axis, with a focus on human psychology and the use of research in laboratory animals to model human psychology.
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Affiliation(s)
- Andrew P. Allen
- Dept Psychiatry & Behavioural Neuroscience/APC Microbiome InstituteUniversity College CorkCorkIreland
| | - Timothy G. Dinan
- Dept Psychiatry & Behavioural Neuroscience/APC Microbiome InstituteUniversity College CorkCorkIreland
| | - Gerard Clarke
- Dept Psychiatry & Behavioural Neuroscience/APC Microbiome InstituteUniversity College CorkCorkIreland
| | - John F. Cryan
- Dept Anatomy & Neuroscience/APC Microbiome InstituteUniversity College CorkCorkIreland
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165
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Patterson E, Wall R, Lisai S, Ross RP, Dinan TG, Cryan JF, Fitzgerald GF, Banni S, Quigley EM, Shanahan F, Stanton C. Bifidobacterium breve with α-linolenic acid alters the composition, distribution and transcription factor activity associated with metabolism and absorption of fat. Sci Rep 2017; 7:43300. [PMID: 28265110 PMCID: PMC5339701 DOI: 10.1038/srep43300] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Accepted: 01/12/2017] [Indexed: 01/16/2023] Open
Abstract
This study focused on the mechanisms that fatty acid conjugating strains - Bifidobacterium breve NCIMB 702258 and Bifidobacterium breve DPC 6330 - influence lipid metabolism when ingested with α-linolenic acid (ALA) enriched diet. Four groups of BALB/c mice received ALA enriched diet (3% (w/w)) either alone or in combination with B. breve NCIMB 702258 or B. breve DPC 6330 (109 CFU/day) or unsupplemented control diet for six weeks. The overall n-3 PUFA score was increased in all groups receiving the ALA enriched diet. Hepatic peroxisomal beta oxidation increased following supplementation of the ALA enriched diet with B. breve (P < 0.05) and so the ability of the strains to produce c9t11 conjugated linoleic acid (CLA) was identified in adipose tissue. Furthermore, a strain specific effect of B. breve NCIMB 702258 was found on the endocannabinoid system (ECS). Liver triglycerides (TAG) were reduced following ALA supplementation, compared with unsupplemented controls (P < 0.01) while intervention with B. breve further reduced liver TAG (P < 0.01), compared with the ALA enriched control. These data indicate that the interactions of the gut microbiota with fatty acid metabolism directly affect host health by modulating n-3 PUFA score and the ECS.
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Affiliation(s)
- Elaine Patterson
- APC Microbiome Institute, Biosciences Building, University College Cork, Cork, Ireland.,Teagasc Food Research Centre, Food Biosciences Department, Moorepark, Fermoy, Cork, Ireland
| | - Rebecca Wall
- APC Microbiome Institute, Biosciences Building, University College Cork, Cork, Ireland.,Teagasc Food Research Centre, Food Biosciences Department, Moorepark, Fermoy, Cork, Ireland
| | - Sara Lisai
- Department of Biomedical Sciences, University of Cagliari, Monserrato, CA 09042, Italy
| | - R Paul Ross
- APC Microbiome Institute, Biosciences Building, University College Cork, Cork, Ireland
| | - Timothy G Dinan
- APC Microbiome Institute, Biosciences Building, University College Cork, Cork, Ireland.,Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland
| | - John F Cryan
- APC Microbiome Institute, Biosciences Building, University College Cork, Cork, Ireland.,Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
| | - Gerald F Fitzgerald
- APC Microbiome Institute, Biosciences Building, University College Cork, Cork, Ireland.,School of Microbiology, University College Cork, Cork, Ireland
| | - Sebastiano Banni
- Department of Biomedical Sciences, University of Cagliari, Monserrato, CA 09042, Italy
| | - Eamonn M Quigley
- APC Microbiome Institute, Biosciences Building, University College Cork, Cork, Ireland
| | - Fergus Shanahan
- APC Microbiome Institute, Biosciences Building, University College Cork, Cork, Ireland
| | - Catherine Stanton
- APC Microbiome Institute, Biosciences Building, University College Cork, Cork, Ireland.,Teagasc Food Research Centre, Food Biosciences Department, Moorepark, Fermoy, Cork, Ireland
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166
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Pusceddu MM, Kelly P, Stanton C, Cryan JF, Dinan TG. N-3 Polyunsaturated Fatty Acids through the Lifespan: Implication for Psychopathology. Int J Neuropsychopharmacol 2016; 19:pyw078. [PMID: 27608809 PMCID: PMC5203760 DOI: 10.1093/ijnp/pyw078] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
OBJECTIVE The impact of lifetime dietary habits and their role in physical, mental, and social well-being has been the focus of considerable recent research. Omega-3 polyunsaturated fatty acids as a dietary constituent have been under the spotlight for decades. Omega-3 polyunsaturated fatty acids constitute key regulating factors of neurotransmission, neurogenesis, and neuroinflammation and are thereby fundamental for development, functioning, and aging of the CNS. Of note is the fact that these processes are altered in various psychiatric disorders, including attention deficit hyperactivity disorder, depression, and Alzheimer's disease. DESIGN Relevant literature was identified through a search of MEDLINE via PubMed using the following words, "n-3 PUFAs," "EPA," and "DHA" in combination with "stress," "cognition," "ADHD," "anxiety," "depression," "bipolar disorder," "schizophrenia," and "Alzheimer." The principal focus was on the role of omega-3 polyunsaturated fatty acids throughout the lifespan and their implication for psychopathologies. Recommendations for future investigation on the potential clinical value of omega-3 polyunsaturated fatty acids were examined. RESULTS The inconsistent and inconclusive results from randomized clinical trials limits the usage of omega-3 polyunsaturated fatty acids in clinical practice. However, a body of literature demonstrates an inverse correlation between omega-3 polyunsaturated fatty acid levels and quality of life/ psychiatric diseases. Specifically, older healthy adults showing low habitual intake of omega-3 polyunsaturated fatty acids benefit most from consuming them, showing improved age-related cognitive decline. CONCLUSIONS Although further studies are required, there is an exciting and growing body of research suggesting that omega-3 polyunsaturated fatty acids may have a potential clinical value in the prevention and treatment of psychopathologies.
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Affiliation(s)
- Matteo M Pusceddu
- APC Microbiome Institute, University College Cork, Cork, Ireland (Drs Pusceddu, Cryan, and Dinan); Teagasc, Moorepark, Cork, Ireland (Drs Kelly and Stanton); Department of Anatomy and Neuroscience (Dr Cryan), and Department of Psychiatry and Neurobehavioural Science (Dr Dinan), University College Cork, Cork, Ireland
| | - Philip Kelly
- APC Microbiome Institute, University College Cork, Cork, Ireland (Drs Pusceddu, Cryan, and Dinan); Teagasc, Moorepark, Cork, Ireland (Drs Kelly and Stanton); Department of Anatomy and Neuroscience (Dr Cryan), and Department of Psychiatry and Neurobehavioural Science (Dr Dinan), University College Cork, Cork, Ireland
| | - Catherine Stanton
- APC Microbiome Institute, University College Cork, Cork, Ireland (Drs Pusceddu, Cryan, and Dinan); Teagasc, Moorepark, Cork, Ireland (Drs Kelly and Stanton); Department of Anatomy and Neuroscience (Dr Cryan), and Department of Psychiatry and Neurobehavioural Science (Dr Dinan), University College Cork, Cork, Ireland
| | - John F Cryan
- APC Microbiome Institute, University College Cork, Cork, Ireland (Drs Pusceddu, Cryan, and Dinan); Teagasc, Moorepark, Cork, Ireland (Drs Kelly and Stanton); Department of Anatomy and Neuroscience (Dr Cryan), and Department of Psychiatry and Neurobehavioural Science (Dr Dinan), University College Cork, Cork, Ireland
| | - Timothy G Dinan
- APC Microbiome Institute, University College Cork, Cork, Ireland (Drs Pusceddu, Cryan, and Dinan); Teagasc, Moorepark, Cork, Ireland (Drs Kelly and Stanton); Department of Anatomy and Neuroscience (Dr Cryan), and Department of Psychiatry and Neurobehavioural Science (Dr Dinan), University College Cork, Cork, Ireland.
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167
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Clarke G, Cryan JF. Preface: The Gut Microbiome and Behavior under the microscope: Where to focus? INTERNATIONAL REVIEW OF NEUROBIOLOGY 2016; 131:xv-xxiii. [PMID: 27793229 DOI: 10.1016/s0074-7742(16)30165-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- G Clarke
- Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland; APC Microbiome Institute, University College Cork, Cork, Ireland.
| | - J F Cryan
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland; APC Microbiome Institute, University College Cork, Cork, Ireland
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168
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Martin JM, Miranda RA, Barella LF, Palma-Rigo K, Alves VS, Fabricio GS, Pavanello A, Franco CCDS, Ribeiro TA, Visentainer JV, Banafé EG, Martin CA, Mathias PCDF, de Oliveira JC. Maternal Diet Supplementation with n-6/n-3 Essential Fatty Acids in a 1.2 : 1.0 Ratio Attenuates Metabolic Dysfunction in MSG-Induced Obese Mice. Int J Endocrinol 2016; 2016:9242319. [PMID: 28050167 PMCID: PMC5165167 DOI: 10.1155/2016/9242319] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 09/19/2016] [Accepted: 10/04/2016] [Indexed: 12/25/2022] Open
Abstract
Essential polyunsaturated fatty acids (PUFAs) prevent cardiometabolic diseases. We aimed to study whether a diet supplemented with a mixture of n-6/n-3 PUFAs, during perinatal life, attenuates outcomes of long-term metabolic dysfunction in prediabetic and obese mice. Seventy-day-old virgin female mice were mated. From the conception day, dams were fed a diet supplemented with sunflower oil and flaxseed powder (containing an n-6/n-3 PUFAs ratio of 1.2 : 1.0) throughout pregnancy and lactation, while control dams received a commercial diet. Newborn mice were treated with monosodium L-glutamate (MSG, 4 mg g-1 body weight per day) for the first 5 days of age. A batch of weaned pups was sacrificed to quantify the brain and pancreas total lipids; another batch were fed a commercial diet until 90 days of age, where glucose homeostasis and glucose-induced insulin secretion (GIIS) as well as retroperitoneal fat and Lee index were assessed. MSG-treated mice developed obesity, glucose intolerance, insulin resistance, pancreatic islet dysfunction, and higher fat stores. Maternal flaxseed diet-supplementation decreased n-6/n-3 PUFAs ratio in the brain and pancreas and blocked glucose intolerance, insulin resistance, GIIS impairment, and obesity development. The n-6/n-3 essential PUFAs in a ratio of 1.2 : 1.0 supplemented in maternal diet during pregnancy and lactation prevent metabolic dysfunction in MSG-obesity model.
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Affiliation(s)
- Josiane Morais Martin
- Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, 87020-900 Maringá, PR, Brazil
| | - Rosiane Aparecida Miranda
- Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, 87020-900 Maringá, PR, Brazil
| | - Luiz Felipe Barella
- Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, 87020-900 Maringá, PR, Brazil
| | - Kesia Palma-Rigo
- Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, 87020-900 Maringá, PR, Brazil
| | - Vander Silva Alves
- Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, 87020-900 Maringá, PR, Brazil
| | - Gabriel Sergio Fabricio
- Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, 87020-900 Maringá, PR, Brazil
| | - Audrei Pavanello
- Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, 87020-900 Maringá, PR, Brazil
| | | | - Tatiane Aparecida Ribeiro
- Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, 87020-900 Maringá, PR, Brazil
| | | | | | | | - Paulo Cezar de Freitas Mathias
- Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, 87020-900 Maringá, PR, Brazil
| | - Júlio Cezar de Oliveira
- Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, 87020-900 Maringá, PR, Brazil
- Instituto de Ciências da Saúde, Universidade Federal de Mato Grosso, 78557-267 Sinop, MT, Brazil
- *Júlio Cezar de Oliveira:
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