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Keirns BH, Keirns NG, Tsotsoros CE, Layman HM, Stout ME, Medlin AR, Sciarrillo CM, Teague TK, Emerson SR, Hawkins MAW. Adverse childhood experiences and obesity linked to indicators of gut permeability and inflammation in adult women. Physiol Behav 2023; 271:114319. [PMID: 37562704 PMCID: PMC10592146 DOI: 10.1016/j.physbeh.2023.114319] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/24/2023] [Accepted: 08/04/2023] [Indexed: 08/12/2023]
Abstract
Gut permeability may increase cardiovascular disease risk by allowing bacterial components (e.g., lipopolysaccharide or LPS) to enter the bloodstream, leading to low-grade inflammation. People with adverse childhood experiences (ACEs) consistently display evidence of chronic inflammation, but the source of this inflammation, and whether gut permeability may contribute, is unknown. Moreover, whether ACE status may further perturb obesity-associated gut permeability and inflammation is unknown. Women (N = 79, aged 18-84y) free of cardiometabolic diseases and inflammatory conditions and not regularly taking anti-inflammatory medications were included in a 2 × 2 factorial design with low or high ACE status (either 0 ACEs or 3+ ACEs) and body mass index (BMI) (either normal-weight [18.5-24.9 kg/m2; NW] or obesity [>30 kg/m2; OB]) as factors (n = 15-27/group). Serum LPS binding protein (LBP), soluble CD14 (sCD14), fatty-acid binding protein-2 (FABP2), LPS core IgM, and the ratio of LBP:sCD14 were used as indicators of gut permeability. Inflammatory markers C-reactive protein (CRP), tumor necrosis factor (TNF)-α, and interleukin (IL)-6 were also measured. Data were analyzed using 2-way ANCOVA (age-adjusted). LBP, LBP:sCD14 and FABP2 were higher in OB versus NW, regardless of ACE status (PBMI < 0.05). Higher ACE status was associated with increased circulating LBP:sCD14 and LPS core IgM (PACE < 0.05). sCD14 was unrelated to BMI or ACEs. CRP was elevated in OB versus NW (PBMI < 0.001) and tended to be higher with 3+ ACEs compared to 0 ACEs (PACE = 0.06). Moreover, TNF-α was greater in 3+ ACEs relative to 0 ACEs (PACE = 0.03). IL-6 was unrelated to BMI or ACE status. No interaction effects were observed for any marker of gut permeability or inflammation. In sum, ACE status and obesity were independently associated with evidence of gut permeability and systemic inflammation but did not interact in relation to indicators of gut permeability.
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Affiliation(s)
- Bryant H Keirns
- Department of Nutrition and Health Science, Ball State University, Muncie, IN 47306, United States of America.
| | - Natalie G Keirns
- Lifespan Cardiovascular Institute, The Miriam Hospital, Providence, RI, United States of America
| | - Cindy E Tsotsoros
- Department of Human Development and Family Science, University of Rhode Island, 2 Lower College Road, Kingston, RI 02881, United States of America
| | - Harley M Layman
- Department of Psychology, Oklahoma State University, 116 Psychology Building, Stillwater, OK, US 74078, United States of America
| | - Madison E Stout
- Department of Psychology, Oklahoma State University, 116 Psychology Building, Stillwater, OK, US 74078, United States of America
| | - Austin R Medlin
- Department of Health & Wellness Design, Indiana University School of Public Health, 1025 E. Seventh St., Bloomington, IN 47405, United States of America
| | - Christina M Sciarrillo
- Department of Nutritional Sciences, Oklahoma State University, 301 Nancy Randolph Davis, Stillwater, OK, US 74078, United States of America
| | - T Kent Teague
- Department of Surgery, University of Oklahoma School of Community Medicine, Tulsa, OK 74135, United States of America; Department of Psychiatry, University of Oklahoma School of Community Medicine, Tulsa, OK 74135, United States of America; Department of Biochemistry and Microbiology, Oklahoma State University Center for Health Sciences, Tulsa, OK 74107
| | - Sam R Emerson
- Department of Nutritional Sciences, Oklahoma State University, 301 Nancy Randolph Davis, Stillwater, OK, US 74078, United States of America
| | - Misty A W Hawkins
- Department of Health & Wellness Design, Indiana University School of Public Health, 1025 E. Seventh St., Bloomington, IN 47405, United States of America
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Leigh SJ, Uhlig F, Wilmes L, Sanchez-Diaz P, Gheorghe CE, Goodson MS, Kelley-Loughnane N, Hyland NP, Cryan JF, Clarke G. The impact of acute and chronic stress on gastrointestinal physiology and function: a microbiota-gut-brain axis perspective. J Physiol 2023; 601:4491-4538. [PMID: 37756251 DOI: 10.1113/jp281951] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 09/06/2023] [Indexed: 09/29/2023] Open
Abstract
The physiological consequences of stress often manifest in the gastrointestinal tract. Traumatic or chronic stress is associated with widespread maladaptive changes throughout the gut, although comparatively little is known about the effects of acute stress. Furthermore, these stress-induced changes in the gut may increase susceptibility to gastrointestinal disorders and infection, and impact critical features of the neural and behavioural consequences of the stress response by impairing gut-brain axis communication. Understanding the mechanisms behind changes in enteric nervous system circuitry, visceral sensitivity, gut barrier function, permeability, and the gut microbiota following stress is an important research objective with pathophysiological implications in both neurogastroenterology and psychiatry. Moreover, the gut microbiota has emerged as a key aspect of physiology sensitive to the effects of stress. In this review, we focus on different aspects of the gastrointestinal tract including gut barrier function as well as the immune, humoral and neuronal elements involved in gut-brain communication. Furthermore, we discuss the evidence for a role of stress in gastrointestinal disorders. Existing gaps in the current literature are highlighted, and possible avenues for future research with an integrated physiological perspective have been suggested. A more complete understanding of the spatial and temporal dynamics of the integrated host and microbial response to different kinds of stressors in the gastrointestinal tract will enable full exploitation of the diagnostic and therapeutic potential in the fast-evolving field of host-microbiome interactions.
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Affiliation(s)
- Sarah-Jane Leigh
- APC Microbiome Ireland, Cork, Ireland
- Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland
| | - Friederike Uhlig
- APC Microbiome Ireland, Cork, Ireland
- Department of Physiology, University College Cork, Cork, Ireland
| | - Lars Wilmes
- APC Microbiome Ireland, Cork, Ireland
- Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
| | - Paula Sanchez-Diaz
- APC Microbiome Ireland, Cork, Ireland
- Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland
| | - Cassandra E Gheorghe
- APC Microbiome Ireland, Cork, Ireland
- Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland
| | - Michael S Goodson
- 711th Human Performance Wing, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, Ohio, USA
| | - Nancy Kelley-Loughnane
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, Ohio, USA
| | - Niall P Hyland
- APC Microbiome Ireland, Cork, Ireland
- Department of Physiology, University College Cork, Cork, Ireland
| | - John F Cryan
- APC Microbiome Ireland, Cork, Ireland
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
| | - Gerard Clarke
- APC Microbiome Ireland, Cork, Ireland
- Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland
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Tingö L, Hutchinson AN, Bergh C, Stiefvatter L, Schweinlin A, Jensen MG, Krüger K, Bischoff SC, Brummer RJ. Potential Modulation of Inflammation by Probiotic and Omega-3 Supplementation in Elderly with Chronic Low-Grade Inflammation—A Randomized, Placebo-Controlled Trial. Nutrients 2022; 14:nu14193998. [PMID: 36235651 PMCID: PMC9573426 DOI: 10.3390/nu14193998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 09/15/2022] [Accepted: 09/18/2022] [Indexed: 11/18/2022] Open
Abstract
Probiotic and omega-3 supplements have been shown to reduce inflammation, and dual supplementation may have synergistic health effects. We investigated if the novel combination of a multi-strain probiotic (containing B. lactis Bi-07, L. paracasei Lpc-37, L. acidophilus NCFM, and B. lactis Bl-04) alongside omega-3 supplements reduces low-grade inflammation as measured by high-sensitivity C-reactive protein (hs-CRP) in elderly participants in a proof-of-concept, randomized, placebo-controlled, parallel study (NCT04126330). In this case, 76 community-dwelling elderly participants (median: 71.0 years; IQR: 68.0–73.8) underwent an intervention with the dual supplement (n = 37) or placebo (n = 39) for eight weeks. In addition to hs-CRP, cytokine levels and intestinal permeability were also assessed at baseline and after the eight-week intervention. No significant difference was seen for hs-CRP between the dual supplement group and placebo. However, interestingly, supplementation did result in significant increases in the level of the anti-inflammatory marker IL-10. In addition, dual supplementation increased levels of valeric acid, further suggesting the potential of the supplements in reducing inflammation and conferring health benefits. Together, the results suggest that probiotic and omega-3 dual supplementation exerts modest effects on inflammation and may have potential use as a non-pharmacological treatment for low-grade inflammation in the elderly.
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Affiliation(s)
- Lina Tingö
- Nutrition-Gut-Brain Interactions Research Centre, School of Medical Sciences, Örebro University, 70362 Örebro, Sweden
- Food and Health Programme, Örebro University, 70362 Örebro, Sweden
- Division of Inflammation and Infection, Department of Biomedical and Clinical Sciences, Linköping University, 58183 Linköping, Sweden
| | - Ashley N. Hutchinson
- Nutrition-Gut-Brain Interactions Research Centre, School of Medical Sciences, Örebro University, 70362 Örebro, Sweden
- Correspondence: ; Tel.: +46-737-455-302
| | - Cecilia Bergh
- Clinical Epidemiology and Biostatistics, School of Medical Sciences, Örebro University, 70362 Örebro, Sweden
| | - Lena Stiefvatter
- Department of Nutritional Medicine and Prevention, University of Hohenheim, 70599 Stuttgart, Germany
| | - Anna Schweinlin
- Department of Nutritional Medicine and Prevention, University of Hohenheim, 70599 Stuttgart, Germany
| | | | - Kirsten Krüger
- Human Nutrition & Health, Department of Agrotechnology and Food Sciences, Wageningen University & Research, 9101 Wageningen, The Netherlands
| | - Stephan C. Bischoff
- Department of Nutritional Medicine and Prevention, University of Hohenheim, 70599 Stuttgart, Germany
| | - Robert J. Brummer
- Nutrition-Gut-Brain Interactions Research Centre, School of Medical Sciences, Örebro University, 70362 Örebro, Sweden
- Food and Health Programme, Örebro University, 70362 Örebro, Sweden
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Sauna dehydration as a new physiological challenge model for intestinal barrier function. Sci Rep 2021; 11:15514. [PMID: 34330970 PMCID: PMC8324874 DOI: 10.1038/s41598-021-94814-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 07/16/2021] [Indexed: 12/15/2022] Open
Abstract
The intestinal barrier plays a crucial role in maintaining gut health, and an increased permeability has been linked to several intestinal and extra-intestinal disorders. There is an increasing demand for interventions aimed at strengthening this barrier and for in vivo challenge models to assess their efficiency. This study investigated the effect of sauna-induced dehydration on intestinal barrier function (clinicaltrials.gov: NCT03620825). Twenty healthy subjects underwent three conditions in random order: (1) Sauna dehydration (loss of 3% body weight), (2) non-steroidal anti-inflammatory drug (NSAID) intake, (3) negative control. Intestinal permeability was assessed by a multi-sugar urinary recovery test, while intestinal damage, bacterial translocation and cytokines were assessed by plasma markers. The sauna dehydration protocol resulted in an increase in gastroduodenal and small intestinal permeability. Presumably, this increase occurred without substantial damage to the enterocytes as plasma intestinal fatty acid-binding protein (I-FABP) and liver fatty acid-binding protein (L-FABP) were not affected. In addition, we observed significant increases in levels of lipopolysaccharide-binding protein (LBP), IL-6 and IL-8, while sCD14, IL-10, IFN-ɣ and TNF-α were not affected. These results suggest that sauna dehydration increased intestinal permeability and could be applied as a new physiological in vivo challenge model for intestinal barrier function.
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