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Thompson RS, Bowers SJ, Vargas F, Hopkins S, Kelley T, Gonzalez A, Lowry CA, Dorrestein PC, Vitaterna MH, Turek FW, Knight R, Wright KP, Fleshner M. A Prebiotic Diet Containing Galactooligosaccharides and Polydextrose Produces Dynamic and Reproducible Changes in the Gut Microbial Ecosystem in Male Rats. Nutrients 2024; 16:1790. [PMID: 38892722 PMCID: PMC11175065 DOI: 10.3390/nu16111790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 05/30/2024] [Accepted: 06/04/2024] [Indexed: 06/21/2024] Open
Abstract
Despite substantial evidence supporting the efficacy of prebiotics for promoting host health and stress resilience, few experiments present evidence documenting the dynamic changes in microbial ecology and fecal microbially modified metabolites over time. Furthermore, the literature reports a lack of reproducible effects of prebiotics on specific bacteria and bacterial-modified metabolites. The current experiments examined whether consumption of diets enriched in prebiotics (galactooligosaccharides (GOS) and polydextrose (PDX)), compared to a control diet, would consistently impact the gut microbiome and microbially modified bile acids over time and between two research sites. Male Sprague Dawley rats were fed control or prebiotic diets for several weeks, and their gut microbiomes and metabolomes were examined using 16S rRNA gene sequencing and untargeted LC-MS/MS analysis. Dietary prebiotics altered the beta diversity, relative abundance of bacterial genera, and microbially modified bile acids over time. PICRUSt2 analyses identified four inferred functional metabolic pathways modified by the prebiotic diet. Correlational network analyses between inferred metabolic pathways and microbially modified bile acids revealed deoxycholic acid as a potential network hub. All these reported effects were consistent between the two research sites, supporting the conclusion that dietary prebiotics robustly changed the gut microbial ecosystem. Consistent with our previous work demonstrating that GOS/PDX reduces the negative impacts of stressor exposure, we propose that ingesting a diet enriched in prebiotics facilitates the development of a health-promoting gut microbial ecosystem.
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Affiliation(s)
- Robert S. Thompson
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO 80309, USA; (R.S.T.); (T.K.); (C.A.L.); (K.P.W.J.)
- Center for Neuroscience, University of Colorado Boulder, Boulder, CO 80309, USA
| | - Samuel J. Bowers
- Department of Neurobiology, Northwestern University, Center for Sleep and Circadian Biology, Evanston, IL 60208, USA; (S.J.B.); (M.H.V.); (F.W.T.)
| | - Fernando Vargas
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, San Diego, CA 92093, USA (P.C.D.)
| | - Shelby Hopkins
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO 80309, USA; (R.S.T.); (T.K.); (C.A.L.); (K.P.W.J.)
- Center for Neuroscience, University of Colorado Boulder, Boulder, CO 80309, USA
| | - Tel Kelley
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO 80309, USA; (R.S.T.); (T.K.); (C.A.L.); (K.P.W.J.)
| | - Antonio Gonzalez
- Department of Pediatrics, University of California San Diego, San Diego, CA 92093, USA (R.K.)
| | - Christopher A. Lowry
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO 80309, USA; (R.S.T.); (T.K.); (C.A.L.); (K.P.W.J.)
- Center for Neuroscience, University of Colorado Boulder, Boulder, CO 80309, USA
| | - Pieter C. Dorrestein
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, San Diego, CA 92093, USA (P.C.D.)
| | - Martha Hotz Vitaterna
- Department of Neurobiology, Northwestern University, Center for Sleep and Circadian Biology, Evanston, IL 60208, USA; (S.J.B.); (M.H.V.); (F.W.T.)
| | - Fred W. Turek
- Department of Neurobiology, Northwestern University, Center for Sleep and Circadian Biology, Evanston, IL 60208, USA; (S.J.B.); (M.H.V.); (F.W.T.)
| | - Rob Knight
- Department of Pediatrics, University of California San Diego, San Diego, CA 92093, USA (R.K.)
- Department of Computer Science and Engineering, University of California San Diego, San Diego, CA 92093, USA
- Center for Microbiome Innovation, University of California San Diego, San Diego, CA 92093, USA
| | - Kenneth P. Wright
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO 80309, USA; (R.S.T.); (T.K.); (C.A.L.); (K.P.W.J.)
- Center for Neuroscience, University of Colorado Boulder, Boulder, CO 80309, USA
| | - Monika Fleshner
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO 80309, USA; (R.S.T.); (T.K.); (C.A.L.); (K.P.W.J.)
- Center for Neuroscience, University of Colorado Boulder, Boulder, CO 80309, USA
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Patterson E, Tan HTT, Groeger D, Andrews M, Buckley M, Murphy EF, Groeger JA. Bifidobacterium longum 1714 improves sleep quality and aspects of well-being in healthy adults: a randomized, double-blind, placebo-controlled clinical trial. Sci Rep 2024; 14:3725. [PMID: 38355674 PMCID: PMC10866977 DOI: 10.1038/s41598-024-53810-w] [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: 04/29/2023] [Accepted: 02/05/2024] [Indexed: 02/16/2024] Open
Abstract
Stress and sleep are linked with overall well-being. Bifidobacterium longum 1714 has been shown to influence stress responses and modulate neural responses during social stress, and influence sleep quality during examination stress in healthy adults. Here, we explored the ability of this strain to alter sleep quality in adults using subjective and objective measures. Eighty-nine adults (18-45y) with impaired sleep quality assessed with the Pittsburgh Sleep Quality Index (PSQI) and with a global score ≥ 5 were randomized to receive B. longum 1714 or placebo daily for eight weeks. Assessing the effect of the strain on PSQI global score was the primary objective. Secondary objectives assessed sleep quality and well-being subjectively and sleep parameters using actigraphy objectively. While PSQI global score improved in both groups, B. longum 1714 significantly improved the PSQI component of sleep quality (p < 0.05) and daytime dysfunction due to sleepiness (p < 0.05) after 4 weeks and social functioning (p < 0.05) and energy/vitality (p < 0.05) after 8 weeks, compared to placebo. No significant effect on actigraphy measures were observed. The 1714 strain had a mild effect on sleep, demonstrated by a faster improvement in sleep quality at week 4 compared to placebo, although overall improvements after 8 weeks were similar in both groups. B. longum 1714 improved social functioning and increased energy/vitality in line with previous work that showed the strain modulated neural activity which correlated with enhanced vitality/reduced mental fatigue (ClinicalTrials.gov: NCT04167475).
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Affiliation(s)
| | | | | | - Mark Andrews
- Nottingham Trent University, Nottingham, NG1 4FQ, UK
| | - Martin Buckley
- Mercy University Hospital, University College Cork, Cork, Ireland
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3
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Giatti S, Diviccaro S, Cioffi L, Cosimo Melcangi R. Post-Finasteride Syndrome And Post-Ssri Sexual Dysfunction: Two Clinical Conditions Apparently Distant, But Very Close. Front Neuroendocrinol 2024; 72:101114. [PMID: 37993021 DOI: 10.1016/j.yfrne.2023.101114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 10/31/2023] [Accepted: 11/19/2023] [Indexed: 11/24/2023]
Abstract
Post-finasteride syndrome and post-SSRI sexual dysfunction, are two poorly explored clinical conditions in which men treated for androgenetic alopecia with finasteride or for depression with SSRI antidepressants show persistent side effects despite drug suspension (e.g., sexual dysfunction, psychological complaints, sleep disorders). Because of some similarities in the symptoms, common pathological mechanisms are proposed here. Indeed, as discussed, clinical studies and preclinical data obtained so far suggest an important role for brain modulators (i.e., neuroactive steroids), neurotransmitters (i.e., serotonin, and cathecolamines), and gut microbiota in the context of the gut-brain axis. In particular, the observed interconnections of these signals in these two clinical conditions may suggest similar etiopathogenetic mechanisms, such as the involvement of the enzyme converting norepinephrine into epinephrine (i.e., phenylethanolamine N-methyltransferase). However, despite the current efforts, more work is still needed to advance the understanding of these clinical conditions in terms of diagnostic markers and therapeutic strategies.
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Affiliation(s)
- Silvia Giatti
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milano, Italy
| | - Silvia Diviccaro
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milano, Italy
| | - Lucia Cioffi
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milano, Italy
| | - Roberto Cosimo Melcangi
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milano, Italy.
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Song JG, Mun D, Lee B, Song M, Oh S, Kim JM, Yang J, Kim Y, Kim HW. Protective Effects of Lacticaseibacillus rhamnosus IDCC3201 on Motor Functions and Anxiety Levels in a Chronic Stress Mouse Model. Food Sci Anim Resour 2023; 43:1044-1054. [PMID: 37969325 PMCID: PMC10636227 DOI: 10.5851/kosfa.2023.e54] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 09/01/2023] [Accepted: 09/13/2023] [Indexed: 11/17/2023] Open
Abstract
Growing evidence indicates a crucial role of the gut microbiota in physiological functions. Gut-brain axis imbalance has also been associated with neuropsychiatric and neurodegenerative disorders. Studies have suggested that probiotics regulate the stress response and alleviate mood-related symptoms. In this study, we investigated the effects of the probiotic Lacticaseibacillus rhamnosus IDCC3201 (L3201) on the behavioral response and fecal metabolite content in an unpredictable chronic mild stress (UCMS) mouse model. Our study shows that chronic stress in mice for three weeks resulted in significant changes in behavior, including lower locomotor activity, higher levels of anxiety, and depressive-like symptoms, compared to the control group. Metabolomic analysis demonstrated that disrupted fecal metabolites associated with aminoacyl-tRNA biosynthesis and valine, leucine, and isoleucine biosynthesis by UCMS were restored with the administration of L3201. Oral administration of the L3201 ameliorated the observed changes and improved the behavioral alterations along with fecal metabolites, suggesting that probiotics play a neuroprotective role.
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Affiliation(s)
- Jae Gwang Song
- College of Life Sciences, Sejong
University, Seoul 05006, Korea
| | - Daye Mun
- Department of Agricultural Biotechnology
and Research Institute of Agriculture and Life Science, Seoul National
University, Seoul 08826, Korea
| | - Bomi Lee
- College of Life Sciences, Sejong
University, Seoul 05006, Korea
| | - Minho Song
- Department of Animal Science and
Biotechnology, Chungnam National University, Daejeon 34134,
Korea
| | - Sangnam Oh
- Department of Functional Food and
Biotechnology, Jeonju University, Jeonju 55069, Korea
| | - Jun-Mo Kim
- Department of Animal Science and
Technology, Chung-Ang University, Anseong 17546, Korea
| | | | - Younghoon Kim
- Department of Agricultural Biotechnology
and Research Institute of Agriculture and Life Science, Seoul National
University, Seoul 08826, Korea
| | - Hyung Wook Kim
- College of Life Sciences, Sejong
University, Seoul 05006, Korea
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Li Y, Xu S, Wang L, Shi H, Wang H, Fang Z, Hu Y, Jin J, Du Y, Deng M, Wang L, Zhu Z. Gut microbial genetic variation modulates host lifespan, sleep, and motor performance. THE ISME JOURNAL 2023; 17:1733-1740. [PMID: 37550381 PMCID: PMC10504343 DOI: 10.1038/s41396-023-01478-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 07/09/2023] [Accepted: 07/11/2023] [Indexed: 08/09/2023]
Abstract
Recent studies have shown that gut microorganisms can modulate host lifespan and activities, including sleep quality and motor performance. However, the role of gut microbial genetic variation in regulating host phenotypes remains unclear. In this study, we investigated the links between gut microbial genetic variation and host phenotypes using Saccharomyces cerevisiae and Drosophila melanogaster as research models. Our result suggested a novel role for peroxisome-related genes in yeast in regulating host lifespan and activities by modulating gut oxidative stress. Specifically, we found that deficiency in catalase A (CTA1) in yeast reduced both the sleep duration and lifespan of fruit flies significantly. Furthermore, our research also expanded our understanding of the relationship between sleep and longevity. Using a large sample size and excluding individual genetic background differences, we found that lifespan is associated with sleep duration, but not sleep fragmentation or motor performance. Overall, our study provides novel insights into the role of gut microbial genetic variation in regulating host phenotypes and offers potential new avenues for improving health and longevity.
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Affiliation(s)
- Ying Li
- Medical Technology College, Xuzhou Medical University, Xuzhou, China
| | - Simin Xu
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore, 117543, Singapore
| | - Liying Wang
- Xuzhou Engineering Research Center of Medical Genetics and Transformation, Key Laboratory of Genetic Foundation and Clinical Application, Department of Genetics, Xuzhou Medical University, Xuzhou, China
| | - Hao Shi
- The First Clinical College, Xuzhou Medical University, Xuzhou, China
| | - Han Wang
- The First Clinical College, Xuzhou Medical University, Xuzhou, China
| | - Ziyi Fang
- School of Anesthesiology, Xuzhou Medical University, Xuzhou, China
| | - Yufan Hu
- School of Anesthesiology, Xuzhou Medical University, Xuzhou, China
| | - Jiayu Jin
- School of Anesthesiology, Xuzhou Medical University, Xuzhou, China
| | - Yujie Du
- School of Anesthesiology, Xuzhou Medical University, Xuzhou, China
| | - Mengqiong Deng
- The First Clinical College, Xuzhou Medical University, Xuzhou, China
| | - Liang Wang
- Laboratory Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, 510080, China.
- The Center for Precision Health, School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, 6027, Australia.
| | - Zuobin Zhu
- Xuzhou Engineering Research Center of Medical Genetics and Transformation, Key Laboratory of Genetic Foundation and Clinical Application, Department of Genetics, Xuzhou Medical University, Xuzhou, China.
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Chen H, Wang C, Bai J, Song J, Bu L, Liang M, Suo H. Targeting microbiota to alleviate the harm caused by sleep deprivation. Microbiol Res 2023; 275:127467. [PMID: 37549451 DOI: 10.1016/j.micres.2023.127467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 07/23/2023] [Accepted: 07/27/2023] [Indexed: 08/09/2023]
Abstract
Sleep deprivation has become a common health hazard, affecting 37-58% of the population and promoting the occurrence and development of many diseases. To date, effective treatment strategies are still elusive. Accumulating evidence indicates that modulating the intestinal microbiota harbors significant potential for alleviating the deleterious impacts of sleep deprivation. This paper first reviews the effects of sleep deprivation on gastrointestinal diseases, metabolic diseases, and neuropsychiatric diseases, discussing its specific mechanisms of influence. We then focus on summarizing existing interventions, including probiotics, melatonin, prebiotics, diet, and fecal microbiota transplantation (FMT). Finally, we have discussed the advantages and limitations of each strategy. Compared with other strategies, probiotics showed a high potential in alleviating sleep deprivation-related hazards due to their reduced risk and high security. We suggest that future research should focus on the specific mechanisms by which probiotics mitigate the harms of sleep deprivation, such insights may unveil novel pathways for treating diseases exacerbated by insufficient sleep.
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Affiliation(s)
- Hongyu Chen
- College of Food Science, Southwest University, Chongqing 400715, China
| | - Chen Wang
- College of Food Science, Southwest University, Chongqing 400715, China; Food Industry Innovation Research Institute of Modern Sichuan Cuisine & Chongqing Flavor, Chongqing 400715, China
| | - Junying Bai
- Citrus Research Institute, National Citrus Engineering Research Center, Southwest University, Chongqing 400715, China
| | - Jiajia Song
- College of Food Science, Southwest University, Chongqing 400715, China; Food Industry Innovation Research Institute of Modern Sichuan Cuisine & Chongqing Flavor, Chongqing 400715, China
| | - Linli Bu
- College of Food Science, Southwest University, Chongqing 400715, China
| | - Ming Liang
- College of Food Science, Southwest University, Chongqing 400715, China
| | - Huayi Suo
- College of Food Science, Southwest University, Chongqing 400715, China; Food Industry Innovation Research Institute of Modern Sichuan Cuisine & Chongqing Flavor, Chongqing 400715, China.
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Post Z, Manfready RA, Keshavarzian A. Overview of the Gut-Brain Axis: From Gut to Brain and Back Again. Semin Neurol 2023; 43:506-517. [PMID: 37562457 DOI: 10.1055/s-0043-1771464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/12/2023]
Abstract
The gut-brain axis refers to a bidirectional communication pathway linking the gastrointestinal system to the central nervous system. The hardware of this multifaceted pathway takes many forms, at once structural (neurons, microglia, intestinal epithelial cell barrier), chemical (neurotransmitters, enteroendocrine hormones, bacterial metabolites), and cellular (immune signaling, inflammatory pathways). The gut-brain axis is exquisitely influenced by our environment, diet, and behaviors. Here, we will describe recent progress in understanding the gut-brain axis in neurological disease, using Parkinson's disease as a guide. We will see that each component of the gut-brain axis is heavily mediated by intestinal microbiota and learn how gut-brain communication can go awry in microbial dysbiosis.
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Affiliation(s)
- Zoë Post
- Division of Digestive Diseases and Nutrition, Department of Internal Medicine, Rush University Medical Center, Chicago, Illinois
| | - Richard A Manfready
- Division of Digestive Diseases and Nutrition, Department of Internal Medicine, Rush University Medical Center, Chicago, Illinois
- Rush Center for Integrated Microbiome and Chronobiology Research, Rush University Medical Center, Chicago, Illinois
- Departments of Physiology and Anatomy & Cell Biology, Rush University Medical Center, Chicago, Illinois
| | - Ali Keshavarzian
- Division of Digestive Diseases and Nutrition, Department of Internal Medicine, Rush University Medical Center, Chicago, Illinois
- Rush Center for Integrated Microbiome and Chronobiology Research, Rush University Medical Center, Chicago, Illinois
- Departments of Physiology and Anatomy & Cell Biology, Rush University Medical Center, Chicago, Illinois
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Li L, Liang T, Jiang T, Li Y, Yang L, Wu L, Yang J, Ding Y, Wang J, Chen M, Zhang J, Xie X, Wu Q. Gut microbiota: Candidates for a novel strategy for ameliorating sleep disorders. Crit Rev Food Sci Nutr 2023:1-17. [PMID: 37477274 DOI: 10.1080/10408398.2023.2228409] [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: 07/22/2023]
Abstract
The aim of this review was to evaluate the feasibility of treating sleep disorders using novel gut microbiota intervention strategies. Multiple factors can cause sleep disorders, including an imbalance in the gut microbiota. Studies of the microbiome-gut-brain axis have revealed bidirectional communication between the central nervous system and gut microbes, providing a more comprehensive understanding of mood and behavioral regulatory patterns. Changes in the gut microbiota and its metabolites can stimulate the endocrine, nervous, and immune systems, which regulate the release of neurotransmitters and alter the activity of the central nervous system, ultimately leading to sleep disorders. Here, we review the main factors affecting sleep, discuss possible pathways and molecular mechanisms of the interaction between sleep and the gut microbiota, and compare common gut microbiota intervention strategies aimed at improving sleep physiology.
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Affiliation(s)
- Longyan Li
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Key Laboratory of Agricultural Microbiomics and Precision Application, Ministry of Agriculture and Rural Affairs, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, People's Republic of China
- College of Food Science, South China Agricultural University, Guangzhou, China
| | - Tingting Liang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Key Laboratory of Agricultural Microbiomics and Precision Application, Ministry of Agriculture and Rural Affairs, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, People's Republic of China
| | - Tong Jiang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Key Laboratory of Agricultural Microbiomics and Precision Application, Ministry of Agriculture and Rural Affairs, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, People's Republic of China
| | - Ying Li
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Key Laboratory of Agricultural Microbiomics and Precision Application, Ministry of Agriculture and Rural Affairs, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, People's Republic of China
| | - Lingshuang Yang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Key Laboratory of Agricultural Microbiomics and Precision Application, Ministry of Agriculture and Rural Affairs, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, People's Republic of China
- College of Food Science, South China Agricultural University, Guangzhou, China
| | - Lei Wu
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Key Laboratory of Agricultural Microbiomics and Precision Application, Ministry of Agriculture and Rural Affairs, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, People's Republic of China
| | - Juan Yang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Key Laboratory of Agricultural Microbiomics and Precision Application, Ministry of Agriculture and Rural Affairs, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, People's Republic of China
| | - Yu Ding
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Key Laboratory of Agricultural Microbiomics and Precision Application, Ministry of Agriculture and Rural Affairs, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, People's Republic of China
| | - Juan Wang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Key Laboratory of Agricultural Microbiomics and Precision Application, Ministry of Agriculture and Rural Affairs, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, People's Republic of China
- College of Food Science, South China Agricultural University, Guangzhou, China
| | - Moutong Chen
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Key Laboratory of Agricultural Microbiomics and Precision Application, Ministry of Agriculture and Rural Affairs, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, People's Republic of China
| | - Jumei Zhang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Key Laboratory of Agricultural Microbiomics and Precision Application, Ministry of Agriculture and Rural Affairs, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, People's Republic of China
| | - Xinqiang Xie
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Key Laboratory of Agricultural Microbiomics and Precision Application, Ministry of Agriculture and Rural Affairs, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, People's Republic of China
| | - Qingping Wu
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Key Laboratory of Agricultural Microbiomics and Precision Application, Ministry of Agriculture and Rural Affairs, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, People's Republic of China
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9
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Tao Z, Chen Y, He F, Tang J, Zhan L, Hu H, Ding Z, Ruan S, Chen Y, Chen B, Wang Y, Guo X, Xie L, Zhong M, Huang Q. Alterations in the Gut Microbiome and Metabolisms in Pregnancies with Fetal Growth Restriction. Microbiol Spectr 2023; 11:e0007623. [PMID: 37199635 PMCID: PMC10269609 DOI: 10.1128/spectrum.00076-23] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 05/04/2023] [Indexed: 05/19/2023] Open
Abstract
Fetuses diagnosed with fetal growth restriction (FGR) are at an elevated risk of stillbirth and adulthood morbidity. Gut dysbiosis has emerged as one of the impacts of placental insufficiency, which is the main cause of FGR. This study aimed to characterize the relationships among the intestinal microbiome, metabolites, and FGR. Characterization was conducted on the gut microbiome, fecal metabolome, and human phenotypes in a cohort of 35 patients with FGR and 35 normal pregnancies (NP). The serum metabolome was analyzed in 19 patients with FGR and 31 normal pregnant women. Multidimensional data was integrated to reveal the links between data sets. A fecal microbiota transplantation mouse model was used to determine the effects of the intestinal microbiome on fetal growth and placental phenotypes. The diversity and composition of the gut microbiota were altered in patients with FGR. A group of microbial species altered in FGR closely correlated with fetal measurements and maternal clinical variables. Fecal and serum metabolism profiles were distinct in FGR patients compared to those in the NP group. Altered metabolites were identified and associated with clinical phenotypes. Integrated multi-omics analysis revealed the interactions among gut microbiota, metabolites, and clinical measurements. Microbiota from FGR gravida transplanted to mice progestationally induced FGR and placental dysfunction, including impaired spiral artery remodeling and insufficient trophoblast cell invasion. Taken together, the integration of microbiome and metabolite profiles from the human cohort indicates that patients with FGR endure gut dysbiosis and metabolic disorders, which contribute to disease pathogenesis. IMPORTANCE Downstream of the primary cause of fetal growth restriction are placental insufficiency and fetal malnutrition. Gut microbiota and metabolites appear to play an important role in the progression of gestation, while dysbiosis induces maternal and fetal complications. Our study elaborates the significant differences in microbiota profiles and metabolome characteristics between women with FGR and normal pregnancies. This is the first attempt so far that reveals the mechanistic links in multi-omics in FGR, providing a novel insight into host-microbe interaction in placenta-derived diseases.
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Affiliation(s)
- Zixin Tao
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Yun Chen
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Fang He
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Jiawei Tang
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Limei Zhan
- Foshan Women and Children Hospital Affiliated to Southern Medical University, Foshan, Guangdong, China
| | - Haoyue Hu
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Ziling Ding
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Shenghang Ruan
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Yutao Chen
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Beier Chen
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Yan Wang
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Xiaoling Guo
- Foshan Women and Children Hospital Affiliated to Southern Medical University, Foshan, Guangdong, China
| | - Liwei Xie
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, Guangdong, China
| | - Mei Zhong
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Qitao Huang
- Department of Obstetrics and Gynecology, The First People’s Hospital of Foshan, Foshan, Guangdong, China
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10
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Diviccaro S, Falvo E, Piazza R, Cioffi L, Herian M, Brivio P, Calabrese F, Giatti S, Caruso D, Melcangi RC. Gut microbiota composition is altered in a preclinical model of type 1 diabetes mellitus: Influence on gut steroids, permeability, and cognitive abilities. Neuropharmacology 2023; 226:109405. [PMID: 36572179 DOI: 10.1016/j.neuropharm.2022.109405] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 12/21/2022] [Accepted: 12/23/2022] [Indexed: 12/25/2022]
Abstract
Sex steroid hormones are not only synthesized from the gonads but also by other tissues, such as the brain (i.e., neurosteroids) and colon (i.e., gut steroids). Gut microbiota can be shaped from sex steroid hormones synthesized from the gonads and locally interacts with gut steroids as in turn modulates neurosteroids. Type 1 diabetes mellitus (T1DM) is characterized by dysbiosis and also by diabetic encephalopathy. However, the interactions of players of gut-brain axis, such as gut steroids, gut permeability markers and microbiota, have been poorly explored in this pathology and, particularly in females. On this basis, we have explored, in streptozotocin (STZ)-induced adult female rats, whether one month of T1DM may alter (I) gut microbiome composition and diversity by 16S next-generation sequencing, (II) gut steroid levels by liquid chromatography-tandem mass spectrometry, (III) gut permeability markers by gene expression analysis, (IV) cognitive behavior by the novel object recognition (NOR) test and whether correlations among these aspects may occur. Results obtained reveal that T1DM alters gut β-, but not α-diversity. The pathology is also associated with a decrease and an increase in colonic pregnenolone and allopregnanolone levels, respectively. Additionally, diabetes alters gut permeability and worsens cognitive behavior. Finally, we reported a significant correlation of pregnenolone with Blautia, claudin-1 and the NOR index and of allopregnanolone with Parasutterella, Gammaproteobacteria and claudin-1. Altogether, these results suggest new putative roles of these two gut steroids related to cognitive deficit and dysbiosis in T1DM female experimental model. This article is part of the Special Issue on "Microbiome & the Brain: Mechanisms & Maladies".
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Affiliation(s)
- Silvia Diviccaro
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milan, Italy
| | - Eva Falvo
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milan, Italy
| | - Rocco Piazza
- Dipartimento di Medicina e Chirurgia, Università di Milano - Bicocca, Milan, Italy
| | - Lucia Cioffi
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milan, Italy
| | - Monika Herian
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milan, Italy
| | - Paola Brivio
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milan, Italy
| | - Francesca Calabrese
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milan, Italy
| | - Silvia Giatti
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milan, Italy
| | - Donatella Caruso
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milan, Italy
| | - Roberto Cosimo Melcangi
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milan, Italy.
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11
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Abe A, Morishima S, Kapoor MP, Inoue R, Tsukahara T, Naito Y, Ozeki M. Partially hydrolyzed guar gum is associated with improvement in gut health, sleep, and motivation among healthy subjects. J Clin Biochem Nutr 2023; 72:189-197. [PMID: 36936875 PMCID: PMC10017317 DOI: 10.3164/jcbn.22-75] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 09/27/2022] [Indexed: 01/15/2023] Open
Abstract
Partially hydrolyzed guar gum dietary fiber is well recognized for a number of health benefits. In the present study, we aim to investigate the effects of partially hydrolyzed guar gum on constipation, intestinal microbiota as well as mental health in healthy subjects. In the randomized, parallel, double-blind, and placebo-controlled study the enrolled healthy men and women volunteers took either 3 g/day (T3) or 5 g/day (T5) of dietary fiber intakes for eight consecutive weeks compared to placebo (T0). The fecal characteristics, fecal microbiota, defecation characteristics, and quality of life (QOL) questionnaire were investigated. The results revealed a significant suppression in fecal potent harmful mucolytic bacteria in the T3 and T5 groups compared to the T0 group. The defecation frequency, excretory feeling, and scores of sleep and motivation questionnaire were also improved in the dietary fiber intake groups, showing a significant difference in the T5 group compared to the T0 group. In summary, the consumption of partially hydrolyzed guar gum dietary fiber is found effective in suppressing the potent harmful mucolytic bacteria that could be associated with the improvement of constipation-related symptoms including mental health in terms of sleep and motivation among the healthy subjects.
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Affiliation(s)
- Aya Abe
- Nutrition Division, Taiyo Kagaku Co. Ltd., 1-3 Takaramachi, Yokkaichi, Mie 510-0844, Japan
- To whom correspondence should be addressed. E-mail:
| | - So Morishima
- Nutrition Division, Taiyo Kagaku Co. Ltd., 1-3 Takaramachi, Yokkaichi, Mie 510-0844, Japan
| | - Mahendra P. Kapoor
- Nutrition Division, Taiyo Kagaku Co. Ltd., 1-3 Takaramachi, Yokkaichi, Mie 510-0844, Japan
| | - Ryo Inoue
- Laboratory of Animal Science, Department of Applied Biological Sciences, Faculty of Agriculture, Setsunan University, Nagatoge-cho 45-1, Hirakata, Osaka 573-0101, Japan
| | | | - Yuji Naito
- Department of Human Immunology and Nutrition Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Makoto Ozeki
- Nutrition Division, Taiyo Kagaku Co. Ltd., 1-3 Takaramachi, Yokkaichi, Mie 510-0844, Japan
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12
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Freijy TM, Cribb L, Oliver G, Metri NJ, Opie RS, Jacka FN, Hawrelak JA, Rucklidge JJ, Ng CH, Sarris J. Effects of a high-prebiotic diet versus probiotic supplements versus synbiotics on adult mental health: The "Gut Feelings" randomised controlled trial. Front Neurosci 2023; 16:1097278. [PMID: 36815026 PMCID: PMC9940791 DOI: 10.3389/fnins.2022.1097278] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Accepted: 12/15/2022] [Indexed: 02/09/2023] Open
Abstract
Background Preliminary evidence supports the use of dietary interventions and gut microbiota-targeted interventions such as probiotic or prebiotic supplementation for improving mental health. We report on the first randomised controlled trial (RCT) to examine the effects of a high-prebiotic dietary intervention and probiotic supplements on mental health. Methods "Gut Feelings" was an 8-week, 2 × 2 factorial RCT of 119 adults with moderate psychological distress and low prebiotic food intake. Treatment arms: (1) probiotic supplement and diet-as-usual (probiotic group); (2) high-prebiotic diet and placebo supplement (prebiotic diet group); (3) probiotic supplement and high-prebiotic diet (synbiotic group); and (4) placebo supplement and diet-as-usual (placebo group). The primary outcome was assessment of total mood disturbance (TMD; Profile of Mood States Short Form) from baseline to 8 weeks. Secondary outcomes included anxiety, depression, stress, sleep, and wellbeing measures. Results A modified intention-to-treat analysis using linear mixed effects models revealed that the prebiotic diet reduced TMD relative to placebo at 8 weeks [Cohen's d = -0.60, 95% confidence interval (CI) = -1.18, -0.03; p = 0.039]. There was no evidence of symptom improvement from the probiotic (d = -0.19, 95% CI = -0.75, 0.38; p = 0.51) or synbiotic treatments (d = -0.03, 95% CI = -0.59, 0.53; p = 0.92). Improved anxiety, stress, and sleep were noted in response to the prebiotic diet while the probiotic tentatively improved wellbeing, relative to placebo. No benefit was found in response to the synbiotic intervention. All treatments were well tolerated with few adverse events. Conclusion A high-prebiotic dietary intervention may improve mood, anxiety, stress, and sleep in adults with moderate psychological distress and low prebiotic intake. A synbiotic combination of high-prebiotic diet and probiotic supplement does not appear to have a beneficial effect on mental health outcomes, though further evidence is required. Results are limited by the relatively small sample size. Clinical trial registration https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=372753, identifier ACTRN12617000795392.
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Affiliation(s)
- Tanya M. Freijy
- Professorial Unit, The Melbourne Clinic, Department of Psychiatry, The University of Melbourne, Melbourne, VIC, Australia,Faculty of Medicine, Dentistry and Health Sciences, Florey Institute of Neuroscience and Mental Health, University of Melbourne, Melbourne, VIC, Australia
| | - Lachlan Cribb
- Professorial Unit, The Melbourne Clinic, Department of Psychiatry, The University of Melbourne, Melbourne, VIC, Australia
| | - Georgina Oliver
- Professorial Unit, The Melbourne Clinic, Department of Psychiatry, The University of Melbourne, Melbourne, VIC, Australia
| | - Najwa-Joelle Metri
- NICM Health Research Institute, Western Sydney University, Westmead, NSW, Australia
| | - Rachelle S. Opie
- IPAN, School of Exercise and Nutrition Sciences, Deakin University, Melbourne, VIC, Australia
| | - Felice N. Jacka
- School of Medicine, Food and Mood Centre, IMPACT Strategic Research Centre, Deakin University, Melbourne, VIC, Australia,Centre for Adolescent Health, Murdoch Children’s Research Institute, Melbourne, VIC, Australia,College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, OLD, Australia
| | - Jason A. Hawrelak
- School of Pharmacy and Pharmacology, University of Tasmania, Hobart, TAS, Australia,Human Nutrition and Functional Medicine Department, University of Western States, Portland, OR, United States
| | - Julia J. Rucklidge
- School of Psychology, Speech and Hearing, University of Canterbury, Christchurch, New Zealand
| | - Chee H. Ng
- Professorial Unit, The Melbourne Clinic, Department of Psychiatry, The University of Melbourne, Melbourne, VIC, Australia
| | - Jerome Sarris
- Professorial Unit, The Melbourne Clinic, Department of Psychiatry, The University of Melbourne, Melbourne, VIC, Australia,Faculty of Medicine, Dentistry and Health Sciences, Florey Institute of Neuroscience and Mental Health, University of Melbourne, Melbourne, VIC, Australia,NICM Health Research Institute, Western Sydney University, Westmead, NSW, Australia,*Correspondence: Jerome Sarris,
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13
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Chandra S, Sisodia SS, Vassar RJ. The gut microbiome in Alzheimer's disease: what we know and what remains to be explored. Mol Neurodegener 2023; 18:9. [PMID: 36721148 PMCID: PMC9889249 DOI: 10.1186/s13024-023-00595-7] [Citation(s) in RCA: 41] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 01/06/2023] [Indexed: 02/02/2023] Open
Abstract
Alzheimer's disease (AD), the most common cause of dementia, results in a sustained decline in cognition. There are currently few effective disease modifying therapies for AD, but insights into the mechanisms that mediate the onset and progression of disease may lead to new, effective therapeutic strategies. Amyloid beta oligomers and plaques, tau aggregates, and neuroinflammation play a critical role in neurodegeneration and impact clinical AD progression. The upstream modulators of these pathological features have not been fully clarified, but recent evidence indicates that the gut microbiome (GMB) may have an influence on these features and therefore may influence AD progression in human patients. In this review, we summarize studies that have identified alterations in the GMB that correlate with pathophysiology in AD patients and AD mouse models. Additionally, we discuss findings with GMB manipulations in AD models and potential GMB-targeted therapeutics for AD. Lastly, we discuss diet, sleep, and exercise as potential modifiers of the relationship between the GMB and AD and conclude with future directions and recommendations for further studies of this topic.
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Affiliation(s)
- Sidhanth Chandra
- grid.16753.360000 0001 2299 3507Ken and Ruth Davee Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA ,grid.16753.360000 0001 2299 3507Medical Scientist Training Program, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - Sangram S. Sisodia
- grid.170205.10000 0004 1936 7822Department of Neurobiology, University of Chicago, Chicago, IL 60637 USA
| | - Robert J. Vassar
- grid.16753.360000 0001 2299 3507Ken and Ruth Davee Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
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14
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Bauer EE, Reed CH, Lyte M, Clark PJ. An evaluation of the rat intestinal monoamine biogeography days following exposure to acute stress. Front Physiol 2022; 13:1021985. [PMID: 36582358 PMCID: PMC9792511 DOI: 10.3389/fphys.2022.1021985] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 11/16/2022] [Indexed: 12/15/2022] Open
Abstract
Stress-induced abnormalities in gut monoamine levels (e.g., serotonin, dopamine, norepinephrine) have been linked to gastrointestinal (GI) dysfunction, as well as the worsening of symptoms in GI disorders. However, the influence of stress on changes across the entire intestinal monoamine biogeography has not been well-characterized, especially in the days following stress exposure. Therefore, the aim of this study was to comprehensively assess changes to monoamine neurochemical signatures across the entire rat intestinal tract days after exposure to an acute stressor. To the end, adult male F344 rats were subjected to an episode of unpredictable tail shocks (acute stress) or left undisturbed. Forty-eight hours later rats were euthanized either following a 12 h period of fasting or 30 min of food access to evaluate neurochemical profiles during the peri- and early postprandial periods. Monoamine-related neurochemicals were measured via UHPLC in regions of the small intestine (duodenum, jejunum, ileum), large intestine (cecum, proximal colon, distal colon), cecal contents, fecal contents, and liver. The results suggest a relatively wide-spread increase in measures of serotonin activity across intestinal regions can be observed 48 h after exposure to acute stress, however some evidence was found supporting localized differences in serotonin metabolization. Moreover, acute stress exposure reduced catecholamine-related neurochemical concentrations most notably in the ileum, and to a lesser extent in the cecal contents. Next, stress-related fecal serotonin concentrations were consistent with intestinal profiles. However, fecal dopamine was elevated in association with stress, which did not parallel findings in any other intestinal area. Finally, stress exposure and the food access period together only had minor effects on intestinal monoamine profiles. Taken together, these data suggest nuanced differences in monoaminergic profiles exist across intestinal regions the days following exposure to an acute stressor, highlighting the importance of assessments that consider the entire intestinal tract biogeography when investigating stress-related biological outcomes that may be relevant to GI pathophysiology.
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Affiliation(s)
- Ella E. Bauer
- Department of Food Science and Human Nutrition, Iowa State University, Ames, IA, United States
| | - Carter H. Reed
- Department of Food Science and Human Nutrition, Iowa State University, Ames, IA, United States
- Department of Kinesiology, Iowa State University, Ames, IA, United States
| | - Mark Lyte
- Department of Veterinary Microbiology and Preventive Medicine, Iowa State University, Ames, IA, United States
| | - Peter J. Clark
- Department of Food Science and Human Nutrition, Iowa State University, Ames, IA, United States
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15
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Chichlowski M, Cotter J, Fawkes N, Pandey N. Feed your microbiome and improve sleep, stress resilience, and cognition. EXPLORATION OF MEDICINE 2022. [DOI: 10.37349/emed.2022.00097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
The brain and gut are connected both physically and biochemically. The gut-brain axis includes the central nervous system, neuroendocrine and neuroimmune systems, the enteric nervous system and vagus nerve, and the gut microbiome. It can influence brain function and even behavior, suggesting that dietary interventions may help enhance and protect mental health and cognitive performance. This review focuses on the role of the microbiome and its metabolites in sleep regulation, neurodegenerative disorders, mechanisms of stress, and mood. It also provides examples of nutritional interventions which can restore healthy gut microbiota and aid with risk reduction and management of many disorders related to mental and cognitive health. Evidence suggests a shift in the gut microbiota towards a balanced composition could be a target to maintain brain health, reduce stress and improve quality of life.
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Affiliation(s)
- Maciej Chichlowski
- Medical and Scientific Affairs, Reckitt/Mead Johnson Nutrition Institute, Evansville, IN 47712, USA
| | - Jack Cotter
- Medical and Scientific Affairs, Reckitt/Mead Johnson Nutrition Institute, SL1 3UH Slough, UK
| | - Neil Fawkes
- Medical and Scientific Affairs, Reckitt/Mead Johnson Nutrition Institute, SL1 3UH Slough, UK
| | - Neeraj Pandey
- Medical and Scientific Affairs, Reckitt/Mead Johnson Nutrition Institute, SL1 3UH Slough, UK
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16
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Kong C, Liang L, Liu G, Du L, Yang Y, Liu J, Shi D, Li X, Ma Y. Integrated metagenomic and metabolomic analysis reveals distinct gut-microbiome-derived phenotypes in early-onset colorectal cancer. Gut 2022; 72:1129-1142. [PMID: 35953094 DOI: 10.1136/gutjnl-2022-327156] [Citation(s) in RCA: 54] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 08/03/2022] [Indexed: 12/18/2022]
Abstract
OBJECTIVE The incidence of early-onset colorectal cancer (EO-CRC) is steadily increasing. Here, we aimed to characterise the interactions between gut microbiome, metabolites and microbial enzymes in EO-CRC patients and evaluate their potential as non-invasive biomarkers for EO-CRC. DESIGN We performed metagenomic and metabolomic analyses, identified multiomics markers and constructed CRC classifiers for the discovery cohort with 130 late-onset CRC (LO-CRC), 114 EO-CRC subjects and age-matched healthy controls (97 LO-Control and 100 EO-Control). An independent cohort of 38 LO-CRC, 24 EO-CRC, 22 LO-Controls and 24 EO-Controls was analysed to validate the results. RESULTS Compared with controls, reduced alpha-diversity was apparent in both, LO-CRC and EO-CRC subjects. Although common variations existed, integrative analyses identified distinct microbiome-metabolome associations in LO-CRC and EO-CRC. Fusobacterium nucleatum enrichment and short-chain fatty acid depletion, including reduced microbial GABA biosynthesis and a shift in acetate/acetaldehyde metabolism towards acetyl-CoA production characterises LO-CRC. In comparison, multiomics signatures of EO-CRC tended to be associated with enriched Flavonifractor plauti and increased tryptophan, bile acid and choline metabolism. Notably, elevated red meat intake-related species, choline metabolites and KEGG orthology (KO) pldB and cbh gene axis may be potential tumour stimulators in EO-CRC. The predictive model based on metagenomic, metabolomic and KO gene markers achieved a powerful classification performance for distinguishing EO-CRC from controls. CONCLUSION Our large-sample multiomics data suggest that altered microbiome-metabolome interplay helps explain the pathogenesis of EO-CRC and LO-CRC. The potential of microbiome-derived biomarkers as promising non-invasive tools could be used for the accurate detection and distinction of individuals with EO-CRC.
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Affiliation(s)
- Cheng Kong
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Lei Liang
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Guang Liu
- Guangdong Hongyuan Pukang Medical Technology Co., Ltd, Guangdong, China
| | - Lutao Du
- Department of Clinical Laboratory, The Second Hospital of Shandong University, Jinan, Shandong province, China
| | - Yongzhi Yang
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jianqiang Liu
- Department of Endoscopy, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Debing Shi
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Xinxiang Li
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yanlei Ma
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, Shanghai, China .,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
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17
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The microbiota-gut-brain axis in sleep disorders. Sleep Med Rev 2022; 65:101691. [DOI: 10.1016/j.smrv.2022.101691] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 08/04/2022] [Accepted: 08/19/2022] [Indexed: 12/25/2022]
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18
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Bowers SJ, Summa KC, Thompson RS, González A, Vargas F, Olker C, Jiang P, Lowry CA, Dorrestein PC, Knight R, Wright KP, Fleshner M, Turek FW, Vitaterna MH. A Prebiotic Diet Alters the Fecal Microbiome and Improves Sleep in Response to Sleep Disruption in Rats. Front Neurosci 2022; 16:889211. [PMID: 35685770 PMCID: PMC9172596 DOI: 10.3389/fnins.2022.889211] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 04/28/2022] [Indexed: 12/16/2022] Open
Abstract
Sleep disruption is a challenging and exceedingly common physiological state that contributes to a wide range of biochemical and molecular perturbations and has been linked to numerous adverse health outcomes. Modern society exerts significant pressure on the sleep/wake cycle via myriad factors, including exposure to electric light, psychological stressors, technological interconnection, jet travel, shift work, and widespread use of sleep-affecting compounds. Interestingly, recent research has identified a link between the microbiome and the regulation of sleep, suggesting that interventions targeting the microbiome may offer unique therapeutic approaches to challenges posed by sleep disruption. In this study, we test the hypothesis that administration of a prebiotic diet containing galactooligosaccharides (GOS) and polydextrose (PDX) in adult male rats improves sleep in response to repeated sleep disruption and during recovery sleep. We found that animals fed the GOS/PDX prebiotic diet for 4 weeks exhibit increased non-rapid eye movement (NREM) and rapid eye movement (REM) sleep during 5 days of sleep disruption and increased total sleep time during 24 h of recovery from sleep disruption compared to animals fed a control diet, despite similar baseline sleep characteristics. Further, the GOS/PDX prebiotic diet led to significant changes in the fecal microbiome. Consistent with previous reports, the prebiotic diet increased the relative abundance of the species Parabacteroides distasonis, which positively correlated with sleep parameters during recovery sleep. Taken together, these findings suggest that the GOS/PDX prebiotic diet may offer an approach to improve resilience to the physiologic challenge of sleep disruption, in part through impacts on the microbiome.
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Affiliation(s)
- Samuel J. Bowers
- Center for Sleep and Circadian Biology, Northwestern University, Evanston, IL, United States
- Department of Neurobiology, Northwestern University Weinberg College of Arts and Sciences, Evanston, IL, United States
| | - Keith C. Summa
- Center for Sleep and Circadian Biology, Northwestern University, Evanston, IL, United States
- Division of Gastroenterology & Hepatology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Robert S. Thompson
- Department of Integrative Physiology, University of Colorado, Boulder, Boulder, CO, United States
- Center for Neuroscience, University of Colorado, Boulder, Boulder, CO, United States
| | - Antonio González
- Department of Pediatrics, University of California, San Diego School of Medicine, La Jolla, CA, United States
| | - Fernando Vargas
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy & Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA, United States
| | - Christopher Olker
- Center for Sleep and Circadian Biology, Northwestern University, Evanston, IL, United States
- Department of Neurobiology, Northwestern University Weinberg College of Arts and Sciences, Evanston, IL, United States
| | - Peng Jiang
- Center for Sleep and Circadian Biology, Northwestern University, Evanston, IL, United States
- Department of Neurobiology, Northwestern University Weinberg College of Arts and Sciences, Evanston, IL, United States
| | - Christopher A. Lowry
- Department of Integrative Physiology, University of Colorado, Boulder, Boulder, CO, United States
- Center for Neuroscience, University of Colorado, Boulder, Boulder, CO, United States
| | - Pieter C. Dorrestein
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy & Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA, United States
- Center for Microbiome Innovation, University of California, San Diego, La Jolla, CA, United States
| | - Rob Knight
- Department of Pediatrics, University of California, San Diego School of Medicine, La Jolla, CA, United States
- Center for Microbiome Innovation, University of California, San Diego, La Jolla, CA, United States
- Department of Computer Science and Engineering, University of California, San Diego, La Jolla, CA, United States
- Department of Bioengineering, University of California, San Diego, La Jolla, CA, United States
| | - Kenneth P. Wright
- Department of Integrative Physiology, University of Colorado, Boulder, Boulder, CO, United States
- Center for Neuroscience, University of Colorado, Boulder, Boulder, CO, United States
- Sleep and Chronobiology Laboratory, University of Colorado, Boulder, Boulder, CO, United States
| | - Monika Fleshner
- Department of Integrative Physiology, University of Colorado, Boulder, Boulder, CO, United States
- Center for Neuroscience, University of Colorado, Boulder, Boulder, CO, United States
| | - Fred W. Turek
- Center for Sleep and Circadian Biology, Northwestern University, Evanston, IL, United States
- Department of Neurobiology, Northwestern University Weinberg College of Arts and Sciences, Evanston, IL, United States
- The Ken & Ruth Davee Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
- Department of Psychiatry and Behavioral Sciences, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Martha H. Vitaterna
- Center for Sleep and Circadian Biology, Northwestern University, Evanston, IL, United States
- Department of Neurobiology, Northwestern University Weinberg College of Arts and Sciences, Evanston, IL, United States
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19
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The interplay between Sleep and Gut Microbiota. Brain Res Bull 2022; 180:131-146. [DOI: 10.1016/j.brainresbull.2021.12.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 12/27/2021] [Accepted: 12/30/2021] [Indexed: 02/06/2023]
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20
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So SY, Savidge TC. Gut feelings: the microbiota-gut-brain axis on steroids. Am J Physiol Gastrointest Liver Physiol 2022; 322:G1-G20. [PMID: 34730020 PMCID: PMC8698538 DOI: 10.1152/ajpgi.00294.2021] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 10/26/2021] [Accepted: 10/29/2021] [Indexed: 01/31/2023]
Abstract
The intricate connection between central and enteric nervous systems is well established with emerging evidence linking gut microbiota function as a significant new contributor to gut-brain axis signaling. Several microbial signals contribute to altered gut-brain communications, with steroids representing an important biological class that impacts central and enteric nervous system function. Neuroactive steroids contribute pathologically to neurological disorders, including dementia and depression, by modulating the activity of neuroreceptors. However, limited information is available on the influence of neuroactive steroids on the enteric nervous system and gastrointestinal function. In this review, we outline how steroids can modulate enteric nervous system function by focusing on their influence on different receptors that are present in the intestine in health and disease. We also highlight the potential role of the gut microbiota in modulating neuroactive steroid signaling along the gut-brain axis.
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Affiliation(s)
- Sik Yu So
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas
| | - Tor C Savidge
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas
- Department of Pathology, Texas Children's Microbiome Center, Texas Children's Hospital, Houston, Texas
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21
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Schoch SF, Castro-Mejía JL, Krych L, Leng B, Kot W, Kohler M, Huber R, Rogler G, Biedermann L, Walser JC, Nielsen DS, Kurth S. From Alpha Diversity to Zzz: Interactions among sleep, the brain, and gut microbiota in the first year of life. Prog Neurobiol 2021; 209:102208. [PMID: 34923049 DOI: 10.1016/j.pneurobio.2021.102208] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 11/04/2021] [Accepted: 12/14/2021] [Indexed: 12/13/2022]
Abstract
Sleep disorders have been linked to alterations of gut microbiota composition in adult humans and animal models, but it is unclear how this link develops. With longitudinal assessments in 162 healthy infants, we present a so far unrecognized sleep-brain-gut interrelationship. First, we report a link between sleep habits and gut microbiota: daytime sleep is associated with bacterial diversity, and nighttime sleep fragmentation and variability link with bacterial maturity and enterotype. Second, we demonstrate a sleep-brain-gut link: bacterial diversity and enterotype are associated with sleep neurophysiology. Third, we show that the sleep-brain-gut link is relevant in development: sleep habits and bacterial markers predict behavioral-developmental outcomes. Our results demonstrate the dynamic interplay between sleep, gut microbiota, and the maturation of brain and behavior during infancy, which aligns with the lately emerging concept of a sleep-brain-gut axis. Importantly, sleep and gut microbiota represent promising health targets since both can be modified non-invasively. As many adult diseases root in early childhood, leveraging protective factors of adequate sleep and age-appropriate gut microbiota in infancy could constitute a health promoting factor across the entire human lifespan.
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Affiliation(s)
- S F Schoch
- Department of PulmonOlogy, University Hospital Zurich, Zurich, Switzerland; Center of Competence Sleep & Health Zurich, University of Zurich, Zurich, Switzerland
| | | | - L Krych
- Department of Food Science, University of Copenhagen, Denmark
| | - B Leng
- Department of Food Science, University of Copenhagen, Denmark
| | - W Kot
- Department of Plant and Environmental Sciences, University of Copenhagen, Denmark
| | - M Kohler
- Department of PulmonOlogy, University Hospital Zurich, Zurich, Switzerland; Center of Competence Sleep & Health Zurich, University of Zurich, Zurich, Switzerland
| | - R Huber
- Center of Competence Sleep & Health Zurich, University of Zurich, Zurich, Switzerland; Child Development Center, University Children's Hospital Zurich, Zurich, Switzerland; Department of Child and Adolescent Psychiatry and Psychotherapy, Psychiatric Hospital, University of Zurich, Switzerland
| | - G Rogler
- Department for Gastroenterology and Hepatology, University Hospital Zurich, Zurich, Switzerland
| | - L Biedermann
- Department for Gastroenterology and Hepatology, University Hospital Zurich, Zurich, Switzerland
| | - J C Walser
- Genetic Diversity Center, ETH Zurich, Zurich, Switzerland
| | - D S Nielsen
- Department of Food Science, University of Copenhagen, Denmark
| | - S Kurth
- Department of PulmonOlogy, University Hospital Zurich, Zurich, Switzerland; Center of Competence Sleep & Health Zurich, University of Zurich, Zurich, Switzerland; Department of Psychology, University of Fribourg, Fribourg, Switzerland.
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22
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Thompson RS, Gaffney M, Hopkins S, Kelley T, Gonzalez A, Bowers SJ, Vitaterna MH, Turek FW, Foxx CL, Lowry CA, Vargas F, Dorrestein PC, Wright KP, Knight R, Fleshner M. Ruminiclostridium 5, Parabacteroides distasonis, and bile acid profile are modulated by prebiotic diet and associate with facilitated sleep/clock realignment after chronic disruption of rhythms. Brain Behav Immun 2021; 97:150-166. [PMID: 34242738 DOI: 10.1016/j.bbi.2021.07.006] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 06/28/2021] [Accepted: 07/04/2021] [Indexed: 12/12/2022] Open
Abstract
Chronic disruption of rhythms (CDR) impacts sleep and can result in circadian misalignment of physiological systems which, in turn, is associated with increased disease risk. Exposure to repeated or severe stressors also disturbs sleep and diurnal rhythms. Prebiotic nutrients produce favorable changes in gut microbial ecology, the gut metabolome, and reduce several negative impacts of acute severe stressor exposure, including disturbed sleep, core body temperature rhythmicity, and gut microbial dysbiosis. In light of previous compelling evidence that prebiotic diet broadly reduces negative impacts of acute, severe stressors, we hypothesize that prebiotic diet will also effectively mitigate the negative impacts of chronic disruption of circadian rhythms on physiology and sleep/wake behavior. Male, Sprague Dawley rats were fed diets enriched in prebiotic substrates or calorically matched control chow. After 5 weeks on diet, rats were exposed to CDR (12 h light/dark reversal, weekly for 8 weeks) or remained on undisturbed normal light/dark cycles (NLD). Sleep EEG, core body temperature, and locomotor activity were recorded via biotelemetry in freely moving rats. Fecal samples were collected on experimental days -33, 0 (day of onset of CDR), and 42. Taxonomic identification and relative abundances of gut microbes were measured in fecal samples using 16S rRNA gene sequencing and shotgun metagenomics. Fecal primary, bacterially modified secondary, and conjugated bile acids were measured using liquid chromatography with tandem mass spectrometry (LC-MS/MS). Prebiotic diet produced rapid and stable increases in the relative abundances of Parabacteroides distasonis and Ruminiclostridium 5. Shotgun metagenomics analyses confirmed reliable increases in relative abundances of Parabacteroides distasonis and Clostridium leptum, a member of the Ruminiclostridium genus. Prebiotic diet also modified fecal bile acid profiles; and based on correlational and step-wise regression analyses, Parabacteroides distasonis and Ruminiclostridium 5 were positively associated with each other and negatively associated with secondary and conjugated bile acids. Prebiotic diet, but not CDR, impacted beta diversity. Measures of alpha diversity evenness were decreased by CDR and prebiotic diet prevented that effect. Rats exposed to CDR while eating prebiotic, compared to control diet, more quickly realigned NREM sleep and core body temperature (ClockLab) diurnal rhythms to the altered light/dark cycle. Finally, both cholic acid and Ruminiclostridium 5 prior to CDR were associated with time to realign CBT rhythms to the new light/dark cycle after CDR; whereas both Ruminiclostridium 5 and taurocholic acid prior to CDR were associated with NREM sleep recovery after CDR. These results support our hypothesis and suggest that ingestion of prebiotic substrates is an effective strategy to increase the relative abundance of health promoting microbes, alter the fecal bile acid profile, and facilitate the recovery and realignment of sleep and diurnal rhythms after circadian disruption.
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Affiliation(s)
- Robert S Thompson
- Department of Integrative Physiology, University of Colorado at Boulder, Boulder, CO, USA; Center for Neuroscience, University of Colorado at Boulder, Boulder, CO, USA.
| | - Michelle Gaffney
- Department of Integrative Physiology, University of Colorado at Boulder, Boulder, CO, USA; Center for Neuroscience, University of Colorado at Boulder, Boulder, CO, USA
| | - Shelby Hopkins
- Department of Integrative Physiology, University of Colorado at Boulder, Boulder, CO, USA
| | - Tel Kelley
- Department of Integrative Physiology, University of Colorado at Boulder, Boulder, CO, USA
| | - Antonio Gonzalez
- Department of Pediatrics, University of California San Diego, La Jolla, CA, USA
| | - Samuel J Bowers
- Department of Neurobiology, Northwestern University, Center for Sleep and Circadian Biology, Evanston, IL, USA
| | - Martha Hotz Vitaterna
- Department of Neurobiology, Northwestern University, Center for Sleep and Circadian Biology, Evanston, IL, USA
| | - Fred W Turek
- Department of Neurobiology, Northwestern University, Center for Sleep and Circadian Biology, Evanston, IL, USA
| | - Christine L Foxx
- Department of Integrative Physiology, University of Colorado at Boulder, Boulder, CO, USA
| | - Christopher A Lowry
- Department of Integrative Physiology, University of Colorado at Boulder, Boulder, CO, USA; Center for Neuroscience, University of Colorado at Boulder, Boulder, CO, USA
| | - Fernando Vargas
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, CA, USA
| | - Pieter C Dorrestein
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, CA, USA
| | - Kenneth P Wright
- Department of Integrative Physiology, University of Colorado at Boulder, Boulder, CO, USA; Center for Neuroscience, University of Colorado at Boulder, Boulder, CO, USA
| | - Rob Knight
- Department of Pediatrics, University of California San Diego, La Jolla, CA, USA; Department of Computer Science and Engineering, University of California San Diego, La Jolla, CA, USA; Center for Microbiome Innovation, University of California San Diego, La Jolla, CA, USA
| | - Monika Fleshner
- Department of Integrative Physiology, University of Colorado at Boulder, Boulder, CO, USA; Center for Neuroscience, University of Colorado at Boulder, Boulder, CO, USA.
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23
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Goodson MS, Barbato RA, Karl JP, Indest K, Kelley-Loughnane N, Kokoska R, Mauzy C, Racicot K, Varaljay V, Soares J. Meeting report of the fourth annual Tri-Service Microbiome Consortium symposium. ENVIRONMENTAL MICROBIOME 2021; 16:16. [PMID: 34419149 PMCID: PMC8380359 DOI: 10.1186/s40793-021-00384-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 08/03/2021] [Indexed: 06/13/2023]
Abstract
The Tri-Service Microbiome Consortium (TSMC) was founded to enhance collaboration, coordination, and communication of microbiome research among U.S. Department of Defense (DoD) organizations. The annual TSMC symposium is designed to enable information sharing between DoD scientists and leaders in the field of microbiome science, thereby keeping DoD consortium members informed of the latest advances within the microbiome community and facilitating the development of new collaborative research opportunities. The 2020 annual symposium was held virtually on 24-25 September 2020. Presentations and discussions centered on microbiome-related topics within four broad thematic areas: (1) Enabling Technologies; (2) Microbiome for Health and Performance; (3) Environmental Microbiome; and (4) Microbiome Analysis and Discovery. This report summarizes the presentations and outcomes of the 4th annual TSMC symposium.
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Affiliation(s)
- Michael S Goodson
- 711th Human Performance Wing, Air Force Research Laboratory, Wright-Patterson AFB, Dayton, OH, USA.
| | - Robyn A Barbato
- United States Army Engineer Research and Development Center - Cold Regions Research and Engineering Laboratory, Hanover, NH, USA
| | - J Philip Karl
- Military Nutrition Division, United States Army Research Institute of Environmental Medicine, Natick, MA, USA
| | - Karl Indest
- United States Army Engineer Research and Development Center, Vicksburg, MS, USA
| | - Nancy Kelley-Loughnane
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, Dayton, OH, USA
| | - Robert Kokoska
- Physical Sciences Directorate, United States Army Research Laboratory - United States Army Research Office, Research Triangle Park, Durham, NC, USA
| | - Camilla Mauzy
- 711th Human Performance Wing, Air Force Research Laboratory, Wright-Patterson AFB, Dayton, OH, USA
| | - Kenneth Racicot
- Soldier Effectiveness Directorate, United States Army Combat Capabilities Development Command Soldier Center, Natick, MA, USA
| | - Vanessa Varaljay
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, Dayton, OH, USA
| | - Jason Soares
- Soldier Effectiveness Directorate, United States Army Combat Capabilities Development Command Soldier Center, Natick, MA, USA
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24
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Lin A, Shih CT, Chu HF, Chen CW, Cheng YT, Wu CC, Yang CCH, Tsai YC. Lactobacillus fermentum PS150 promotes non-rapid eye movement sleep in the first night effect of mice. Sci Rep 2021; 11:16313. [PMID: 34381098 PMCID: PMC8357945 DOI: 10.1038/s41598-021-95659-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 07/06/2021] [Indexed: 12/30/2022] Open
Abstract
The first night effect (FNE) is a type of sleep disturbance caused by an unfamiliar environment, which leads to difficulty falling asleep and reduced sleep duration. Previously, we reported that Lactobacillus fermentum PS150 (PS150) improves sleep conditions in a pentobarbital-induced sleep mouse model. In this study, we aimed to evaluate the effect of PS150 on the FNE in mice. Briefly, mice were implanted with electrodes and orally administered PS150 for four weeks, and then the FNE was induced by cage changing. Analysis of polysomnographic signals revealed that intervention with PS150 restored non-rapid eye movement (NREM) sleep length under the FNE. Compared to diphenhydramine, a commonly used sleep aid, PS150 had no unwanted side effects, such as rapid eye movement (REM) sleep deprivation and fragmented sleep. Moreover, temporal analysis revealed that PS150 efficiently reduced both sleep latency and time spent restoring normal levels of REM sleep. Taken together, these results suggest that PS150 efficiently ameliorates sleep disturbance caused by the FNE. Additionally, V3–V4 16S rRNA sequencing revealed significant increases in Erysipelotrichia, Actinobacteria, and Coriobacteriia in fecal specimens of the PS150-treated group, indicating that PS150 induces gut microbiota remodeling.
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Affiliation(s)
- Alexander Lin
- Institute of Biochemistry and Molecular Biology, National Yang-Ming University, 155, Section 2, Linong Street, Beitou District, Taipei, 11221, Taiwan.,Chung Mei Biopharma Co., Ltd., Taichung, Taiwan
| | | | - Hsu-Feng Chu
- Biomedical Industry Ph.D. Program, National Yang-Ming University, Taipei, Taiwan
| | - Chieh-Wen Chen
- Institute of Brain Science, National Yang-Ming University, No. 155, Section 2, Linong Street, Beitou District, Taipei, 11221, Taiwan.,Sleep Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Yu-Ting Cheng
- Institute of Brain Science, National Yang-Ming University, No. 155, Section 2, Linong Street, Beitou District, Taipei, 11221, Taiwan.,Sleep Research Center, National Yang-Ming University, Taipei, Taiwan
| | | | - Cheryl C H Yang
- Institute of Brain Science, National Yang-Ming University, No. 155, Section 2, Linong Street, Beitou District, Taipei, 11221, Taiwan. .,Sleep Research Center, National Yang-Ming University, Taipei, Taiwan. .,Brain Research Center, National Yang-Ming University, Taipei, Taiwan.
| | - Ying-Chieh Tsai
- Institute of Biochemistry and Molecular Biology, National Yang-Ming University, 155, Section 2, Linong Street, Beitou District, Taipei, 11221, Taiwan.
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25
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Sen P, Molinero-Perez A, O'Riordan KJ, McCafferty CP, O'Halloran KD, Cryan JF. Microbiota and sleep: awakening the gut feeling. Trends Mol Med 2021; 27:935-945. [PMID: 34364787 DOI: 10.1016/j.molmed.2021.07.004] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 07/05/2021] [Accepted: 07/05/2021] [Indexed: 02/07/2023]
Abstract
Various lifestyle and environmental factors are known to influence sleep. Increasingly, evidence points to a role for the microbiota in regulating brain and behaviour. This article explores how the microbiota-gut-brain axis affects sleep directly and indirectly. We summarize the possible molecular mechanisms underlying sleep-microbiome interactions and discuss how various factors interact with the gut microbiota to influence sleep. Furthermore, we present the current evidence of alterations of the microbiota-gut-brain axis in various sleep disorders and pathologies where comorbid sleep disturbances are common. Since manipulating the gut microbiota could potentially improve sleep, we outline ways in which this can be achieved.
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Affiliation(s)
- Paromita Sen
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | | | | | - Cian P McCafferty
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
| | - Ken D O'Halloran
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Physiology, University College Cork, 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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26
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Schaafsma A, Mallee L, van den Belt M, Floris E, Kortman G, Veldman J, van den Ende D, Kardinaal A. The Effect of A Whey-Protein and Galacto-Oligosaccharides Based Product on Parameters of Sleep Quality, Stress, and Gut Microbiota in Apparently Healthy Adults with Moderate Sleep Disturbances: A Randomized Controlled Cross-Over Study. Nutrients 2021; 13:nu13072204. [PMID: 34199006 PMCID: PMC8308271 DOI: 10.3390/nu13072204] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/21/2021] [Accepted: 06/24/2021] [Indexed: 12/21/2022] Open
Abstract
People experiencing sleep problems may benefit from nutrients supporting serotonin metabolism and stress reduction. We studied the effect of a dairy-based product (DP) containing protein, galacto-oligosaccharides, vitamins and minerals, on sleep quality, stress, and gut-microbiota. In a cross-over RCT (three weeks intervention; three weeks washout), adults (n = 70; 30–50 y) with sleep disturbances (Pittsburgh Sleep Quality Index (PSQI) ≥ 9) consumed products 1 h before bed-time. Sleep quality (PSQI) was measured weekly, stress at base- and end-line (Depression Anxiety Stress Scale and saliva cortisol). Fecal samples were collected in the 1st intervention period only. Compared to placebo (skimmed milk), PSQI was only lower at day 14 in the 2nd intervention period in intention-to-treat (ITT) (p = 0.017; n = 69) and per-protocol (PP) (p = 0.038; n = 64) analyses. Post-hoc analysis (modified-PP: n=47, with baseline PSQI ≥ 9, and endline day 14), however, showed a decrease in PSQI (−1.60 ± 2.53; p = 0.034). Early morning saliva cortisol decreased versus placebo (p = 0.045). Relative abundance of Bifidobacterium increased (p = 0.02). Redundancy analysis showed an inverse relationship between baseline microbiota composition and baseline PSQI (p = 0.046). Thus, although DP did not improve sleep quality in ITT and PP populations, it did in the modPP. DP reduced salivary cortisol and stimulated Bifidobacterium, which possibly is important for sleep improvement.
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Affiliation(s)
- Anne Schaafsma
- FrieslandCampina, 3818 LE Amersfoort, The Netherlands; (L.M.); (J.V.)
- Correspondence: ; Tel.: +31-653241313
| | - Leonard Mallee
- FrieslandCampina, 3818 LE Amersfoort, The Netherlands; (L.M.); (J.V.)
| | - Maartje van den Belt
- NIZO, Nutrition & Health, 6710 BA Ede, The Netherlands; (M.v.d.B.); (E.F.); (G.K.); (A.K.)
| | - Esther Floris
- NIZO, Nutrition & Health, 6710 BA Ede, The Netherlands; (M.v.d.B.); (E.F.); (G.K.); (A.K.)
| | - Guus Kortman
- NIZO, Nutrition & Health, 6710 BA Ede, The Netherlands; (M.v.d.B.); (E.F.); (G.K.); (A.K.)
| | - Jouke Veldman
- FrieslandCampina, 3818 LE Amersfoort, The Netherlands; (L.M.); (J.V.)
| | | | - Alwine Kardinaal
- NIZO, Nutrition & Health, 6710 BA Ede, The Netherlands; (M.v.d.B.); (E.F.); (G.K.); (A.K.)
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27
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Yan R, Andrew L, Marlow E, Kunaratnam K, Devine A, Dunican IC, Christophersen CT. Dietary Fibre Intervention for Gut Microbiota, Sleep, and Mental Health in Adults with Irritable Bowel Syndrome: A Scoping Review. Nutrients 2021; 13:2159. [PMID: 34201752 PMCID: PMC8308461 DOI: 10.3390/nu13072159] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/14/2021] [Accepted: 06/18/2021] [Indexed: 02/08/2023] Open
Abstract
Irritable bowel syndrome (IBS) is a common functional gastrointestinal disorder affecting 4-5% of the global population. This disorder is associated with gut microbiota, diet, sleep, and mental health. This scoping review therefore aims to map existing research that has administrated fibre-related dietary intervention to IBS individuals and reported outcomes on at least two of the three following themes: gut microbiota, sleep, and mental health. Five digital databases were searched to identify and select papers as per the inclusion and exclusion criteria. Five articles were included in the assessment, where none reported on all three themes or the combination of gut microbiota and sleep. Two studies identified alterations in gut microbiota and mental health with fibre supplementation. The other three studies reported on mental health and sleep outcomes using subjective questionnaires. IBS-related research lacks system biology-type studies targeting gut microbiota, sleep, and mental health in patients undergoing diet intervention. Further IBS research is required to explore how human gut microbiota functions (such as short-chain fatty acids) in sleep and mental health, following the implementation of dietary pattern alteration or component supplementation. Additionally, the application of objective sleep assessments is required in order to detect sleep change with more accuracy and less bias.
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Affiliation(s)
- Ran Yan
- School of Medical and Health Sciences, Edith Cowan University, Joondalup Drive, Perth 6027, Australia
- Institute for Nutrition Research, Edith Cowan University, Joondalup Drive, Perth 6027, Australia
| | - Lesley Andrew
- School of Medical and Health Sciences, Edith Cowan University, Joondalup Drive, Perth 6027, Australia
- Institute for Nutrition Research, Edith Cowan University, Joondalup Drive, Perth 6027, Australia
| | - Evania Marlow
- School of Medical and Health Sciences, Edith Cowan University, Joondalup Drive, Perth 6027, Australia
| | - Kanita Kunaratnam
- School of Medical and Health Sciences, Edith Cowan University, Joondalup Drive, Perth 6027, Australia
- Institute for Nutrition Research, Edith Cowan University, Joondalup Drive, Perth 6027, Australia
| | - Amanda Devine
- School of Medical and Health Sciences, Edith Cowan University, Joondalup Drive, Perth 6027, Australia
- Institute for Nutrition Research, Edith Cowan University, Joondalup Drive, Perth 6027, Australia
| | - Ian C Dunican
- School of Medical and Health Sciences, Edith Cowan University, Joondalup Drive, Perth 6027, Australia
| | - Claus T Christophersen
- School of Medical and Health Sciences, Edith Cowan University, Joondalup Drive, Perth 6027, Australia
- WA Human Microbiome Collaboration Centre, School of Molecular and Life Sciences, Curtin University, Kent Street, Perth 6102, Australia
- Integrative Metabolomics and Computational Biology Centre, Edith Cowan University, Joondalup Drive, Perth 6027, Australia
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28
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Zhang Y, Cheng L, Liu Y, Wu Z, Weng P. The Intestinal Microbiota Links Tea Polyphenols with the Regulation of Mood and Sleep to Improve Immunity. FOOD REVIEWS INTERNATIONAL 2021. [DOI: 10.1080/87559129.2021.1934007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yuting Zhang
- Department of Food Science and Engineering, Ningbo University, Ningbo, P.R. China
| | - Lu Cheng
- Department of Food Science, Rutgers, the State University of New Jersey, New Brunswick, New Jersey, USA
| | - Yanan Liu
- Department of Food Science and Engineering, Ningbo University, Ningbo, P.R. China
| | - Zufang Wu
- Department of Food Science and Engineering, Ningbo University, Ningbo, P.R. China
| | - Peifang Weng
- Department of Food Science and Engineering, Ningbo University, Ningbo, P.R. China
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29
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Borgo F, Macandog AD, Diviccaro S, Falvo E, Giatti S, Cavaletti G, Melcangi RC. Alterations of gut microbiota composition in post-finasteride patients: a pilot study. J Endocrinol Invest 2021; 44:1263-1273. [PMID: 32951160 PMCID: PMC8124058 DOI: 10.1007/s40618-020-01424-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 09/08/2020] [Indexed: 12/11/2022]
Abstract
PURPOSE Post-finasteride syndrome (PFS) has been reported in a subset of patients treated with finasteride (an inhibitor of the enzyme 5alpha-reductase) for androgenetic alopecia. These patients showed, despite the suspension of the treatment, a variety of persistent symptoms, like sexual dysfunction and cognitive and psychological disorders, including depression. A growing body of literature highlights the relevance of the gut microbiota-brain axis in human health and disease. For instance, alterations in gut microbiota composition have been reported in patients with major depressive disorder. Therefore, we have here analyzed the gut microbiota composition in PFS patients in comparison with a healthy cohort. METHODS Fecal microbiota of 23 PFS patients was analyzed by 16S rRNA gene sequencing and compared with that reported in ten healthy male subjects. RESULTS Sexual dysfunction, psychological and cognitive complaints, muscular problems, and physical alterations symptoms were reported in more than half of the PFS patients at the moment of sample collection. The quality sequence check revealed a low library depth for two fecal samples. Therefore, the gut microbiota analyses were conducted on 21 patients. The α-diversity was significantly lower in PFS group, showing a reduction of richness and diversity of gut microbiota structure. Moreover, when visualizing β-diversity, a clustering effect was found in the gut microbiota of a subset of PFS subjects, which was also characterized by a reduction in Faecalibacterium spp. and Ruminococcaceae UCG-005, while Alloprevotella and Odoribacter spp were increased compared to healthy control. CONCLUSION Gut microbiota population is altered in PFS patients, suggesting that it might represent a diagnostic marker and a possible therapeutic target for this syndrome.
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Affiliation(s)
- F Borgo
- Department of Experimental Oncology, IEO European Institute of Oncology IRCCS, Milan, Italy
| | - A D Macandog
- Department of Experimental Oncology, IEO European Institute of Oncology IRCCS, Milan, Italy
- Department of Oncology and Hemato-Oncology, Università Degli Studi di Milano, Milan, Italy
| | - S Diviccaro
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università Degli Studi di Milano, Via Balzaretti 9, 20133, Milan, Italy
| | - E Falvo
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università Degli Studi di Milano, Via Balzaretti 9, 20133, Milan, Italy
| | - S Giatti
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università Degli Studi di Milano, Via Balzaretti 9, 20133, Milan, Italy
| | - G Cavaletti
- Experimental Neurology Unit, Università di Milano-Bicocca, Monza, Italy
- Milan Center for Neuroscience, Università di Milano-Bicocca, Monza, Italy
| | - R C Melcangi
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università Degli Studi di Milano, Via Balzaretti 9, 20133, Milan, Italy.
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30
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Withrow D, Bowers SJ, Depner CM, González A, Reynolds AC, Wright KP. Sleep and Circadian Disruption and the Gut Microbiome-Possible Links to Dysregulated Metabolism. CURRENT OPINION IN ENDOCRINE AND METABOLIC RESEARCH 2021; 17:26-37. [PMID: 34805616 PMCID: PMC8597978 DOI: 10.1016/j.coemr.2020.11.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Insufficient sleep and circadian misalignment are associated with adverse metabolic health outcomes. Alterations in gut microbial diversity occur with insufficient sleep and circadian misalignment, which can lead to modifications in microbial structure and function. Changes in microbially produced and modified metabolites such as short chain fatty acids and secondary bile acids may contribute to chronic inflammation, positive energy balance and endocrine changes, and represent potential mechanisms linking insufficient sleep and circadian misalignment with metabolic dysregulation. Literature primarily from the last two years is reviewed here, examining the impact of sleep and circadian rhythms and their disruption on the gut microbiome in human and non-human models, with an emphasis on the hypothesis that the altered gut microbiome may be one pathway by which insufficient sleep and circadian misalignment dysregulate metabolism.
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Affiliation(s)
- Dana Withrow
- Sleep and Chronobiology Laboratory, Department of Integrative Physiology, University of Colorado-Boulder, Boulder, CO, USA
| | - Samuel J. Bowers
- Center for Sleep and Circadian Biology, Northwestern University, Evanston, IL, USA
| | - Christopher M. Depner
- Sleep and Chronobiology Laboratory, Department of Integrative Physiology, University of Colorado-Boulder, Boulder, CO, USA
- Department of Health and Kinesiology, University of Utah, Salt Lake City, UT, USA
| | - Antonio González
- Department of Pediatrics, University of California at San Diego, La Jolla, CA, USA
| | - Amy C. Reynolds
- The Appleton Institute, CQUniversity Australia, Adelaide, Australia
| | - Kenneth P. Wright
- Sleep and Chronobiology Laboratory, Department of Integrative Physiology, University of Colorado-Boulder, Boulder, CO, USA
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Maffoni SI, Kalmpourtzidou Α, Cena H. The potential role of nutrition in mitigating the psychological impact of COVID-19 in healthcare workers. NFS JOURNAL 2021. [PMCID: PMC7833967 DOI: 10.1016/j.nfs.2020.12.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Healthcare professionals are exposed to several stress factors, especially during health emergency situations like Covid-19. Psychological distress in the COVID-19 era adversely affects both healthcare professionals' mental and physical health, decreasing performance and efficiency at work. Nevertheless, no sufficient emphasis has been placed so far on the role of nutrition against stress and anxiety among healthcare professionals. Consequently, worksite health promotion approaches and interventions are highly recommended, but also National Health Systems are praised to develop strategies and policies to satisfy nutritional requirements in health emergencies such as Covid-19 pandemic. In this brief paper, the important role of nutrition during periods of stress is highlighted, providing nutritional advice to enhance resilience in this risk group. In addition, practical lifestyle and diet tips for stress management among healthcare professionals exposed to Covid-19 are reported in this mini review.
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Foxx CL, Heinze JD, González A, Vargas F, Baratta MV, Elsayed AI, Stewart JR, Loupy KM, Arnold MR, Flux MC, Sago SA, Siebler PH, Milton LN, Lieb MW, Hassell JE, Smith DG, Lee KAK, Appiah SA, Schaefer EJ, Panitchpakdi M, Sikora NC, Weldon KC, Stamper CE, Schmidt D, Duggan DA, Mengesha YM, Ogbaselassie M, Nguyen KT, Gates CA, Schnabel K, Tran L, Jones JD, Vitaterna MH, Turek FW, Fleshner M, Dorrestein PC, Knight R, Wright KP, Lowry CA. Effects of Immunization With the Soil-Derived Bacterium Mycobacterium vaccae on Stress Coping Behaviors and Cognitive Performance in a "Two Hit" Stressor Model. Front Physiol 2021; 11:524833. [PMID: 33469429 PMCID: PMC7813891 DOI: 10.3389/fphys.2020.524833] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 11/17/2020] [Indexed: 12/14/2022] Open
Abstract
Previous studies demonstrate that Mycobacterium vaccae NCTC 11659 (M. vaccae), a soil-derived bacterium with anti-inflammatory and immunoregulatory properties, is a potentially useful countermeasure against negative outcomes to stressors. Here we used male C57BL/6NCrl mice to determine if repeated immunization with M. vaccae is an effective countermeasure in a "two hit" stress exposure model of chronic disruption of rhythms (CDR) followed by acute social defeat (SD). On day -28, mice received implants of biotelemetric recording devices to monitor 24-h rhythms of locomotor activity. Mice were subsequently treated with a heat-killed preparation of M. vaccae (0.1 mg, administered subcutaneously on days -21, -14, -7, and 27) or borate-buffered saline vehicle. Mice were then exposed to 8 consecutive weeks of either stable normal 12:12 h light:dark (LD) conditions or CDR, consisting of 12-h reversals of the LD cycle every 7 days (days 0-56). Finally, mice were exposed to either a 10-min SD or a home cage control condition on day 54. All mice were exposed to object location memory testing 24 h following SD. The gut microbiome and metabolome were assessed in fecal samples collected on days -1, 48, and 62 using 16S rRNA gene sequence and LC-MS/MS spectral data, respectively; the plasma metabolome was additionally measured on day 64. Among mice exposed to normal LD conditions, immunization with M. vaccae induced a shift toward a more proactive behavioral coping response to SD as measured by increases in scouting and avoiding an approaching male CD-1 aggressor, and decreases in submissive upright defensive postures. In the object location memory test, exposure to SD increased cognitive function in CDR mice previously immunized with M. vaccae. Immunization with M. vaccae stabilized the gut microbiome, attenuating CDR-induced reductions in alpha diversity and decreasing within-group measures of beta diversity. Immunization with M. vaccae also increased the relative abundance of 1-heptadecanoyl-sn-glycero-3-phosphocholine, a lysophospholipid, in plasma. Together, these data support the hypothesis that immunization with M. vaccae stabilizes the gut microbiome, induces a shift toward a more proactive response to stress exposure, and promotes stress resilience.
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Affiliation(s)
- Christine L. Foxx
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
- Center for Microbial Exploration, University of Colorado Boulder, Boulder, CO, United States
| | - Jared D. Heinze
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
- Center for Microbial Exploration, University of Colorado Boulder, Boulder, CO, United States
| | - Antonio González
- Department of Pediatrics, School of Medicine, University of California, San Diego, La Jolla, CA, United States
| | - Fernando Vargas
- Center for Microbiome Innovation, University of California, San Diego, La Jolla, CA, United States
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA, United States
| | - Michael V. Baratta
- Department of Psychology and Neuroscience, University of Colorado Boulder, Boulder, CO, United States
- Center for Neuroscience, University of Colorado Boulder, Boulder, CO, United States
| | - Ahmed I. Elsayed
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
- Center for Microbial Exploration, University of Colorado Boulder, Boulder, CO, United States
| | - Jessica R. Stewart
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
- Department of Psychology and Neuroscience, University of Colorado Boulder, Boulder, CO, United States
| | - Kelsey M. Loupy
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
- Center for Microbial Exploration, University of Colorado Boulder, Boulder, CO, United States
| | - Mathew R. Arnold
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
- Center for Neuroscience, University of Colorado Boulder, Boulder, CO, United States
| | - M. C. Flux
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
- Department of Psychology and Neuroscience, University of Colorado Boulder, Boulder, CO, United States
| | - Saydie A. Sago
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
- Center for Microbial Exploration, University of Colorado Boulder, Boulder, CO, United States
| | - Philip H. Siebler
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
| | - Lauren N. Milton
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
| | - Margaret W. Lieb
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
| | - James E. Hassell
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
- Center for Neuroscience, University of Colorado Boulder, Boulder, CO, United States
| | - David G. Smith
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
| | - Kyo A. K. Lee
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
- Department of Psychology and Neuroscience, University of Colorado Boulder, Boulder, CO, United States
| | - Sandra A. Appiah
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
- Center for Microbial Exploration, University of Colorado Boulder, Boulder, CO, United States
| | - Evan J. Schaefer
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
- Center for Microbial Exploration, University of Colorado Boulder, Boulder, CO, United States
| | - Morgan Panitchpakdi
- Center for Microbiome Innovation, University of California, San Diego, La Jolla, CA, United States
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA, United States
| | - Nicole C. Sikora
- Center for Microbiome Innovation, University of California, San Diego, La Jolla, CA, United States
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA, United States
| | - Kelly C. Weldon
- Center for Microbiome Innovation, University of California, San Diego, La Jolla, CA, United States
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA, United States
| | - Christopher E. Stamper
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
| | - Dominic Schmidt
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
| | - David A. Duggan
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
| | - Yosan M. Mengesha
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
| | - Mikale Ogbaselassie
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
| | - Kadi T. Nguyen
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
| | - Chloe A. Gates
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
| | - K’loni Schnabel
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
| | - Linh Tran
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
| | - Joslynn D. Jones
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
| | - Martha H. Vitaterna
- Center for Sleep and Circadian Biology, Department of Neurobiology, Northwestern University, Evanston, IL, United States
| | - Fred W. Turek
- Center for Sleep and Circadian Biology, Department of Neurobiology, Northwestern University, Evanston, IL, United States
| | - Monika Fleshner
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
- Center for Neuroscience, University of Colorado Boulder, Boulder, CO, United States
| | - Pieter C. Dorrestein
- Department of Pediatrics, School of Medicine, University of California, San Diego, La Jolla, CA, United States
- Center for Microbiome Innovation, University of California, San Diego, La Jolla, CA, United States
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA, United States
| | - Rob Knight
- Department of Pediatrics, School of Medicine, University of California, San Diego, La Jolla, CA, United States
- Center for Microbiome Innovation, University of California, San Diego, La Jolla, CA, United States
- Department of Computer Science and Engineering, Jacobs School of Engineering, University of California, San Diego, La Jolla, CA, United States
- Department of Bioengineering, Jacobs School of Engineering, University of California, San Diego, La Jolla, CA, United States
| | - Kenneth P. Wright
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
- Center for Neuroscience, University of Colorado Boulder, Boulder, CO, United States
| | - Christopher A. Lowry
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO, United States
- Center for Microbial Exploration, University of Colorado Boulder, Boulder, CO, United States
- Center for Neuroscience, University of Colorado Boulder, Boulder, CO, United States
- Veterans Health Administration, Rocky Mountain Mental Illness Research Education and Clinical Center, Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, CO, United States
- Military and Veteran Microbiome: Consortium for Research and Education, Aurora, CO, United States
- Department of Physical Medicine and Rehabilitation and Center for Neuroscience, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
- inVIVO Planetary Health, Worldwide Universities Network, West New York, NJ, United States
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Colombo J, Carlson SE, Algarín C, Reyes S, Chichlowski M, Harris CL, Wampler JL, Peirano P, Berseth CL. Developmental effects on sleep-wake patterns in infants receiving a cow's milk-based infant formula with an added prebiotic blend: a Randomized Controlled Trial. Pediatr Res 2021; 89:1222-1231. [PMID: 32615579 PMCID: PMC8119237 DOI: 10.1038/s41390-020-1044-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 05/10/2020] [Accepted: 06/03/2020] [Indexed: 11/09/2022]
Abstract
BACKGROUND Few studies have evaluated nutritive effects of prebiotics on infant behavior state, physiology, or metabolic status. METHODS In this double-blind randomized study, infants (n = 161) received cow's milk-based infant formula (Control) or similar formula with an added prebiotic blend (polydextrose and galactooligosaccharides [PDX/GOS]) from 14-35 to 112 days of age. Infant wake behavior (crying/fussing, awake/content) and 24-h sleep-wake actograms were analyzed (Baseline, Days 70 and 112). Salivary cortisol was immunoassayed (Days 70 and 112). In a subset, exploratory stool 16S ribosomal RNA-sequencing was analyzed (Baseline, Day 112). RESULTS One hundred and thirty-one infants completed the study. Average duration of crying/fussing episodes was similar at Baseline, significantly shorter for PDX/GOS vs. Control at Day 70, and the trajectory continued at Day 112. Latency to first and second nap was significantly longer for PDX/GOS vs. Control at Day 112. Cortisol awakening response was demonstrated at Days 70 and 112. Significant stool microbiome beta-diversity and individual taxa abundance differences were observed in the PDX/GOS group. CONCLUSIONS Results indicate faster consolidation of daytime waking state in infants receiving prebiotics and support home-based actigraphy to assess early sleep-wake patterns. A prebiotic effect on wake organization is consistent with influence on the gut-brain axis and warrants further investigation. IMPACT Few studies have evaluated nutritive effects of prebiotics on infant behavior state, cortisol awakening response, sleep-wake entrainment, and gut microbiome. Faster consolidation of daytime waking state was demonstrated in infants receiving a prebiotic blend in infant formula through ~4 months of age. Shorter episodes of crying were demonstrated at ~2 months of age (time point corresponding to age/developmental range associated with peak crying) in infants receiving formula with added prebiotics. Results support home-based actigraphy as a suitable method to assess early sleep-wake patterns. Prebiotic effect on wake organization is consistent with influence on the gut-brain axis and warrants further investigation.
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Affiliation(s)
- John Colombo
- Schiefelbusch Institute for Life Span Studies and Department of Psychology, University of Kansas, Lawrence, KS, USA.
| | - Susan E. Carlson
- grid.412016.00000 0001 2177 6375Department of Dietetics and Nutrition, University of Kansas Medical Center, Kansas City, KS USA
| | - Cecilia Algarín
- grid.443909.30000 0004 0385 4466Sleep and Functional Neurobiology Laboratory, Institute of Nutrition and Food Technology (INTA), University of Chile, Santiago, Chile
| | - Sussanne Reyes
- grid.443909.30000 0004 0385 4466Sleep and Functional Neurobiology Laboratory, Institute of Nutrition and Food Technology (INTA), University of Chile, Santiago, Chile
| | - Maciej Chichlowski
- Nutrition Science, Department of Medical Affairs, Mead Johnson Nutrition, 2400 West Lloyd Expy, Evansville, IN 47721 USA
| | - Cheryl L. Harris
- Clinical Research, Department of Medical Affairs, Mead Johnson Nutrition, 2400 West Lloyd Expy, Evansville, IN 47721 USA
| | - Jennifer L. Wampler
- Clinical Research, Department of Medical Affairs, Mead Johnson Nutrition, 2400 West Lloyd Expy, Evansville, IN 47721 USA
| | - Patricio Peirano
- grid.443909.30000 0004 0385 4466Sleep and Functional Neurobiology Laboratory, Institute of Nutrition and Food Technology (INTA), University of Chile, Santiago, Chile
| | - Carol Lynn Berseth
- Clinical Research, Department of Medical Affairs, Mead Johnson Nutrition, 2400 West Lloyd Expy, Evansville, IN 47721 USA
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Ketogenic Diet: A Dietary Modification as an Anxiolytic Approach? Nutrients 2020; 12:nu12123822. [PMID: 33327540 PMCID: PMC7765029 DOI: 10.3390/nu12123822] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 12/03/2020] [Accepted: 12/10/2020] [Indexed: 12/11/2022] Open
Abstract
Anxiety disorders comprise persistent, disabling conditions that are distributed across the globe, and are associated with the high medical and socioeconomic burden of the disease. Within the array of biopsychosocial treatment modalities—including monoaminergic antidepressants, benzodiazepines, and CBT—there is an unmet need for the effective treatment of anxiety disorders resulting in full remission and recovery. Nutritional intervention may be hypothesized as a promising treatment strategy; in particular, it facilitates relapse prevention. Low-carbohydrate high-fat diets (LCHF) may provide a rewarding outcome for some anxiety disorders; more research is needed before this regimen can be recommended to patients on a daily basis, but the evidence mentioned in this paper should encourage researchers and clinicians to consider LCHF as a piece of advice somewhere between psychotherapy and pharmacology, or as an add-on to those two.
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Diviccaro S, Giatti S, Borgo F, Falvo E, Caruso D, Garcia-Segura LM, Melcangi RC. Steroidogenic machinery in the adult rat colon. J Steroid Biochem Mol Biol 2020; 203:105732. [PMID: 32777355 DOI: 10.1016/j.jsbmb.2020.105732] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Revised: 07/25/2020] [Accepted: 07/27/2020] [Indexed: 12/15/2022]
Abstract
Gastrointestinal function is known to be regulated by steroid molecules produced by the gonads, the adrenal glands and the gut microbiota. However, we have a limited knowledge on the functional significance of local steroid production by gastrointestinal tract tissue. On this basis, we have here evaluated, as a first methodological approach, the expression of steroidogenic molecules and the local levels of key steroids in the male rat colon. Our findings indicate that the colon tissue expresses molecules involved in the early steps of steroidogenesis and in the consecutive synthesis and metabolism of steroid hormones, such as progesterone, testosterone and 17β-estradiol. In addition, the levels of the steroid hormone precursor pregnenolone and the levels of active metabolites of progesterone and testosterone, such as dihydroprogesterone, tetrahydroprogesterone, dihydrotestosterone and 17β-estradiol, were higher in colon than in plasma. Higher levels of the androgen metabolite 3α-diol were detected in the colon in comparison with another non-classical steroidogenic tissue, such as the cerebral cortex. These findings suggest the existence of local steroid synthesis and metabolism in the colon, with the production of active steroid metabolites that may impact on the activity of the enteric nervous system and on the composition of the gut microbiota.
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Affiliation(s)
- S Diviccaro
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milan, Italy
| | - S Giatti
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milan, Italy
| | - F Borgo
- Department of Experimental Oncology, IEO European Institute of Oncology IRCCS, Milan, Italy
| | - E Falvo
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milan, Italy
| | - D Caruso
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milan, Italy
| | - L M Garcia-Segura
- Instituto Cajal, Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain; Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Madrid, Spain
| | - R C Melcangi
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milan, Italy,.
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O'Connor KM, Lucking EF, Bastiaanssen TFS, Peterson VL, Crispie F, Cotter PD, Clarke G, Cryan JF, O'Halloran KD. Prebiotic administration modulates gut microbiota and faecal short-chain fatty acid concentrations but does not prevent chronic intermittent hypoxia-induced apnoea and hypertension in adult rats. EBioMedicine 2020; 59:102968. [PMID: 32861200 PMCID: PMC7475129 DOI: 10.1016/j.ebiom.2020.102968] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 05/22/2020] [Accepted: 08/06/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Evidence is accruing to suggest that microbiota-gut-brain signalling plays a regulatory role in cardiorespiratory physiology. Chronic intermittent hypoxia (CIH), modelling human sleep apnoea, affects gut microbiota composition and elicits cardiorespiratory morbidity. We investigated if treatment with prebiotics ameliorates cardiorespiratory dysfunction in CIH-exposed rats. METHODS Adult male rats were exposed to CIH (96 cycles/day, 6.0% O2 at nadir) for 14 consecutive days with and without prebiotic supplementation (fructo- and galacto-oligosaccharides) beginning two weeks prior to gas exposures. FINDINGS CIH increased apnoea index and caused hypertension. CIH exposure had modest effects on the gut microbiota, decreasing the relative abundance of Lactobacilli species, but had no effect on microbial functional characteristics. Faecal short-chain fatty acid (SCFA) concentrations, plasma and brainstem pro-inflammatory cytokine concentrations and brainstem neurochemistry were unaffected by exposure to CIH. Prebiotic administration modulated gut microbiota composition and diversity, altering gut-metabolic (GMMs) and gut-brain (GBMs) modules and increased faecal acetic and propionic acid concentrations, but did not prevent adverse CIH-induced cardiorespiratory phenotypes. INTERPRETATION CIH-induced cardiorespiratory dysfunction is not dependant upon changes in microbial functional characteristics and decreased faecal SCFA concentrations. Prebiotic-related modulation of microbial function and resultant increases in faecal SCFAs were not sufficient to prevent CIH-induced apnoea and hypertension in our model. Our results do not exclude the potential for microbiota-gut-brain axis involvement in OSA-related cardiorespiratory morbidity, but they demonstrate that in a relatively mild model of CIH, sufficient to evoke classic cardiorespiratory dysfunction, such changes are not obligatory for the development of morbidity, but may become relevant in the elaboration and maintenance of cardiorespiratory morbidity with progressive disease. FUNDING Department of Physiology and APC Microbiome Ireland, University College Cork, Ireland. APC Microbiome Ireland is funded by Science Foundation Ireland, through the Government's National Development Plan.
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Affiliation(s)
- Karen M O'Connor
- Department of Physiology, School of Medicine, College of Medicine & Health, University College Cork, Cork, Ireland; Department of Anatomy & Neuroscience, School of Medicine, College of Medicine & Health, University College Cork, Cork, Ireland; APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Eric F Lucking
- Department of Physiology, School of Medicine, College of Medicine & Health, University College Cork, Cork, Ireland
| | - Thomaz F S Bastiaanssen
- Department of Anatomy & Neuroscience, School of Medicine, College of Medicine & Health, University College Cork, Cork, Ireland; APC Microbiome Ireland, University College Cork, Cork, Ireland
| | | | - Fiona Crispie
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Teagasc Food Research Centre, Moorepark, Fermoy, County Cork, Ireland
| | - Paul D Cotter
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Teagasc Food Research Centre, Moorepark, Fermoy, County Cork, Ireland
| | - Gerard Clarke
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, School of Medicine, College of Medicine & Health, University College Cork, Cork, Ireland
| | - John F Cryan
- Department of Anatomy & Neuroscience, School of Medicine, College of Medicine & Health, University College Cork, Cork, Ireland; APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Ken D O'Halloran
- Department of Physiology, School of Medicine, College of Medicine & Health, University College Cork, Cork, Ireland; APC Microbiome Ireland, University College Cork, Cork, Ireland.
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Scarmozzino F, Poli A, Visioli F. Microbiota and cardiovascular disease risk: A scoping review. Pharmacol Res 2020; 159:104952. [DOI: 10.1016/j.phrs.2020.104952] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 05/20/2020] [Accepted: 05/20/2020] [Indexed: 02/08/2023]
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Wagner-Skacel J, Dalkner N, Moerkl S, Kreuzer K, Farzi A, Lackner S, Painold A, Reininghaus EZ, Butler MI, Bengesser S. Sleep and Microbiome in Psychiatric Diseases. Nutrients 2020; 12:nu12082198. [PMID: 32718072 PMCID: PMC7468877 DOI: 10.3390/nu12082198] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/15/2020] [Accepted: 07/20/2020] [Indexed: 12/29/2022] Open
Abstract
Objectives: Disturbances in the gut–brain barrier play an essential role in the development of mental disorders. There is considerable evidence showing that the gut microbiome not only affects digestive, metabolic and immune functions of the host but also regulates host sleep and mental states through the microbiota–gut–brain axis. The present review summarizes the role of the gut microbiome in the context of circadian rhythms, nutrition and sleep in psychiatric disorders. Methods: A PubMed search (studies published between April 2015–April 2020) was conducted with the keywords: “sleep, microbiome and psychiatry”; “sleep, microbiome and depression”; “sleep, microbiome and bipolar disorder”, “sleep, microbiome and schizophrenia”, “sleep, microbiome and anorexia nervosa”, “sleep, microbiome and substance use disorder”, “sleep, microbiome and anxiety”; “clock gene expression and microbiome”, “clock gene expression and nutrition”. Only studies investigating the relationship between sleep and microbiome in psychiatric patients were included in the review. Results: Search results yielded two cross-sectional studies analyzing sleep and gut microbiome in 154 individuals with bipolar disorder and one interventional study analyzing the effect of fecal microbiota transplantation in 17 individuals with irritable bowel syndrome on sleep. In patients with bipolar disorder, Faecalibacterium was significantly associated with improved sleep quality scores and a significant correlation between Lactobacillus counts and sleep. Conclusion: Translational research on this important field is limited and further investigation of the bidirectional pathways on sleep and the gut microbiome in mood disorders is warranted.
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Affiliation(s)
- Jolana Wagner-Skacel
- Department of Medical Psychology, Medical University of Graz (MUG), 8036 Graz, Austria;
| | - Nina Dalkner
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz (MUG), 8036 Graz, Austria; (N.D.); (S.M.); (K.K.); (A.P.); (E.Z.R.)
| | - Sabrina Moerkl
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz (MUG), 8036 Graz, Austria; (N.D.); (S.M.); (K.K.); (A.P.); (E.Z.R.)
| | - Kathrin Kreuzer
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz (MUG), 8036 Graz, Austria; (N.D.); (S.M.); (K.K.); (A.P.); (E.Z.R.)
| | - Aitak Farzi
- Otto Loewi Research Center (for Vascular Biology, Immunology and Inflammation), Division of Pharmacology, Medical University of Graz (MUG), 8036 Graz, Austria;
| | - Sonja Lackner
- Otto Loewi Research Center (for Vascular Biology, Immunology andI), Division of Immunology and Pathophysiology, Medical University of Graz (MUG), 8036 Graz, Austria;
| | - Annamaria Painold
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz (MUG), 8036 Graz, Austria; (N.D.); (S.M.); (K.K.); (A.P.); (E.Z.R.)
| | - Eva Z. Reininghaus
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz (MUG), 8036 Graz, Austria; (N.D.); (S.M.); (K.K.); (A.P.); (E.Z.R.)
| | - Mary I. Butler
- Department of Psychiatry, University College Cork, T12 YN60 Cork, Ireland;
| | - Susanne Bengesser
- Department of Psychiatry and Psychotherapeutic Medicine, Medical University of Graz (MUG), 8036 Graz, Austria; (N.D.); (S.M.); (K.K.); (A.P.); (E.Z.R.)
- Correspondence: ; Tel.: +43-316-86224
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