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Patch C, Pearce AJ, Cheng M, Boyapati R, Brenna JT. Bacillus Subtilis (BG01-4 TM) Improves Self-Reported Symptoms for Constipation, Indigestion, and Dyspepsia: A Phase 1/2A Randomized Controlled Trial. Nutrients 2023; 15:4490. [PMID: 37960143 PMCID: PMC10648295 DOI: 10.3390/nu15214490] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 10/19/2023] [Accepted: 10/20/2023] [Indexed: 11/15/2023] Open
Abstract
BACKGROUND Functional gastrointestinal disorders (FGIDs) are common, difficult-to-manage conditions. Probiotics are emerging as a dietary component that influence gastrointestinal (GI) health. We conducted a double-blinded randomised controlled trial of a proprietary strain of deactivated Bacillus subtilis (BG01-4™) high in branched-chain fatty acids (BCFA) to treat self-reported FGID. METHODS Participants (n = 67) completed a four-week intervention of BG01-4™ (n = 34) or placebo (n = 33). The Gastrointestinal Symptom Rating Scale (GSRS) served as the outcome measure, collected prior to, at two weeks, and at four weeks after completion of the intervention. RESULTS At four weeks, one of three primary outcomes, constipation in the experimental group, was improved by 33% compared to placebo (15%); both other primary outcomes, Total GSRS and diarrhoea, were significantly improved in both the experimental and placebo groups (32%/26% and 20%/22%, respectively). The pre-planned secondary outcome, indigestion, was improved at four weeks (32%) but compared to the placebo (21%) was not significant (p = 0.079). Exploratory analysis, however, revealed that clusters for constipation (18% improvement, p < 0.001), indigestion (11% improvement, p = 0.04), and dyspepsia (10% improvement, p = 0.04) were significantly improved in the intervention group compared to the placebo. CONCLUSIONS These initial findings suggest that in people with self-reported FGID, BG01-4™ improves specific symptoms of constipation and related GI dysfunction. Longer-term confirmatory studies for this intervention are warranted. TRIAL REGISTRATION This study was registered prospectively (25 October 2021) at the Australian New Zealand Clinical Trials Registry (ACTRN12621001441808p).
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Affiliation(s)
- Craig Patch
- School Allied Health, Human Services and Sport, Melbourne 3086, Australia
- Adepa Lifesciences, Melbourne 3000, Australia
| | - Alan J. Pearce
- School Allied Health, Human Services and Sport, Melbourne 3086, Australia
| | - Mek Cheng
- Adepa Lifesciences, Melbourne 3000, Australia
| | - Ray Boyapati
- Department of Gastroenterology, Monash Health, Melbourne 3977, Australia
- Faculty of Medicine, Nursing and Health Science, Monash University, Melbourne 3800, Australia
| | - J. Thomas Brenna
- Adepa Lifesciences, Melbourne 3000, Australia
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14853, USA
- Dell Paediatric Research Institute, Department of Paediatrics, of Nutrition, and of Chemistry, University of Texas at Austin, Austin, TX 78712, USA
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Zhao L, Zhang F, Kuang D, Li D, Yan J, Yang J, Wang Q, Wang Y, Sun J, Liu Y, Liu P, Xia Y, Cao H. Mediating effect of gastrointestinal symptoms on dietary behavior and quality of life in Chinese adults with chronic gastritis-a cross-sectional study. Front Med (Lausanne) 2023; 10:1178897. [PMID: 37601801 PMCID: PMC10437056 DOI: 10.3389/fmed.2023.1178897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 07/11/2023] [Indexed: 08/22/2023] Open
Abstract
Background Chronic gastritis is accompanied by varying degrees of gastrointestinal symptoms, which affect people's quality of life. The association between dietary behaviors and gastrointestinal symptoms of patients with chronic gastritis has been proved recently. However, no studies have been conducted to investigate the relationship between dietary behaviors, gastrointestinal symptoms, and quality of life. Methods A cross-sectional survey of 176 patients diagnosed with chronic gastritis aged 18 to 65 years, comprising their information on demographic characteristics, dietary behaviors, gastrointestinal symptoms, and quality of life, was collected. A descriptive analysis and a correlation matrix were used to illuminate the characteristics of the subjects and bivariate correlation, respectively. The mediation model was analyzed using the PROCESS macros for SPSS. Results Demographic characteristics were found to influence the symptoms, dietary behaviors, and quality of life of chronic gastritis patients; in particular, students categorized by occupation had higher levels of gastrointestinal symptoms and lower levels of quality of life and dietary behavior. The study variables were all pound related. We found that gastrointestinal symptoms played a partial mediating role between dietary behavior and both the physical components summary and mental components summary, and the ratios of mediating effects to the total effect on the physical components summary and mental components summary were 23.5% and 21.5%, respectively. Conclusion Our survey discovered that dietary behavior, gastrointestinal symptoms, and quality of life were all pairwise related. The effect of dietary behavior on quality of life was partially mediated by gastrointestinal symptoms. These results may provide a novel perspective for medical staff in improving the quality of life of patients with chronic gastritis.
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Affiliation(s)
- Litong Zhao
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
- Nutritional Department, Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Feng Zhang
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
- Nutritional Department, Affiliated Hospital of Jiangnan University, Wuxi, China
- Clinical Assessment Center of Functional Food, Affiliated Hospital of Jiangnan University, Wuxi, China
- Department of Endocrinology, Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Dan Kuang
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Dan Li
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
- Nutritional Department, Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Jiai Yan
- Nutritional Department, Affiliated Hospital of Jiangnan University, Wuxi, China
- Clinical Assessment Center of Functional Food, Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Ju Yang
- Nutritional Department, Affiliated Hospital of Jiangnan University, Wuxi, China
- Clinical Assessment Center of Functional Food, Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Qinyue Wang
- Nutritional Department, Affiliated Hospital of Jiangnan University, Wuxi, China
- Clinical Assessment Center of Functional Food, Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Yingyu Wang
- Nutritional Department, Affiliated Hospital of Jiangnan University, Wuxi, China
- Clinical Assessment Center of Functional Food, Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Jing Sun
- Nutritional Department, Affiliated Hospital of Jiangnan University, Wuxi, China
- Clinical Assessment Center of Functional Food, Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Yiran Liu
- Nutritional Department, Affiliated Hospital of Jiangnan University, Wuxi, China
- Clinical Assessment Center of Functional Food, Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Ping Liu
- Wuxi Center for Disease Control and Prevention, The Affiliated Wuxi Center for Disease Control and Prevention of Nanjing Medical University, Wuxi, China
| | - Yanping Xia
- Nutritional Department, Affiliated Hospital of Jiangnan University, Wuxi, China
- Clinical Assessment Center of Functional Food, Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Hong Cao
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
- Nutritional Department, Affiliated Hospital of Jiangnan University, Wuxi, China
- Clinical Assessment Center of Functional Food, Affiliated Hospital of Jiangnan University, Wuxi, China
- Department of Endocrinology, Affiliated Hospital of Jiangnan University, Wuxi, China
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3
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Baguley B, Smith-Gillis C, Porter J, Kiss N, Ugalde A. Nutrition services during prostate cancer androgen deprivation therapy. BMJ Support Palliat Care 2023:spcare-2023-004304. [PMID: 37402540 DOI: 10.1136/spcare-2023-004304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 06/21/2023] [Indexed: 07/06/2023]
Abstract
OBJECTIVE Dietary interventions are effective strategies to mitigate multiple side effects from androgen deprivation therapy (ADT) in prostate cancer, however the perception of, and access to, nutrition services is relatively unknown. METHODS A qualitative study using semistructured, audio recorded interviews was conducted in men with prostate cancer treated with ADT for ≥3 months. Interviews explored (1) side effects of ADT and drivers for dietary change, (2) accessibility, barriers, facilitators and use of nutrition services and (3) the preferences for nutrition service delivery. Data were coded using interpretative descriptive techniques of textual interview data, and systematically summarised to generate thematical patterns, using NVivo software. RESULTS Interviews were completed of 20 men with prostate cancer treated with ADT (25.5±20.1 months). Thematic analysis revealed four overarching themes-(1) the changes from ADT: men revealed that weight gain, loss of muscle and strength from ADT were daily struggles that negatively impact body image and components of masculinity reduced; (2) strategies to take control: several dietary changes were trialled and restrictive in foods and nutrients. Barriers to accessing nutrition specialists were the cost for the service and absence of a clear referral pathway; (3) importance of nutrition knowledge: demand for specialised nutrition services with knowledge in addressing side effects from ADT; (4) diverse patients need diverse nutrition support: that includes peer or partner support, and technology supported nutrition content. CONCLUSION Evidence-based nutrition services are an unmet need for men treated with ADT. Future work is required to develop services that can be readily available and accessible to improve prostate cancer survivorship care.
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Affiliation(s)
- Brenton Baguley
- Deakin University, Institute for Physical Activity and Nutrition, Geelong, Victoria, Australia
| | - Caity Smith-Gillis
- School of Exercise and Nutrition Sciences, Deakin University, Burwood, Victoria, Australia
| | - Judi Porter
- Deakin University, Institute for Physical Activity and Nutrition, Geelong, Victoria, Australia
| | - Nicole Kiss
- Deakin University, Institute for Physical Activity and Nutrition, Geelong, Victoria, Australia
| | - Anna Ugalde
- Institute for Health Transformation, Deakin University, Burwood, Victoria, Australia
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Mohr AE, Jasbi P, Bowes DA, Dirks B, Whisner CM, Arciero KM, Poe M, Gu H, Gumpricht E, Sweazea KL, Arciero PJ. Exploratory analysis of one versus two-day intermittent fasting protocols on the gut microbiome and plasma metabolome in adults with overweight/obesity. Front Nutr 2022; 9:1036080. [PMID: 36386914 PMCID: PMC9644216 DOI: 10.3389/fnut.2022.1036080] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 09/30/2022] [Indexed: 08/08/2023] Open
Abstract
Nutritional interventions are a promising therapeutic option for addressing obesity and cardiometabolic dysfunction. One such option, intermittent fasting (IF), has emerged as a viable alternative to daily caloric restriction and may beneficially modulate body weight regulation and alter the gut microbiome (GM) and plasma metabolome. This secondary analysis of a larger, registered trial (ClinicalTrials.gov ID: NCT04327141) examined the effect of a four-week intervention comparing one vs. two-consecutive days of IF in combination with protein pacing (IF-P; 4-5 meals/day, >30% protein/day) on the GM, the plasma metabolome, and associated clinical outcomes in overweight and obese adults. Participants (n = 20) were randomly assigned to either a diet consisting of one fasting day (total of 36 h) and six low-calorie P days per week (IF1-P, n = 10) or two fasting days (60 h total) and five low-calorie P days per week (IF2-P, n = 10). The fecal microbiome, clinical outcomes, and plasma metabolome were analyzed at baseline (week 0) and after four weeks. There were no significant time or interaction effects for alpha diversity; however, baseline alpha diversity was negatively correlated with percent body fat change after the four-week intervention (p = 0.030). In addition, beta-diversity for both IF groups was altered significantly by time (p = 0.001), with no significant differences between groups. The IF1-P group had a significant increase in abundance of Ruminococcaceae Incertae Sedis and Eubacterium fissicatena group (q ≤ 0.007), while the IF2-P group had a significant increase in abundance of Ruminococcaceae Incertae Sedis and a decrease in Eubacterium ventriosum group (q ≤ 0.005). The plasma metabolite profile of IF2-P participants displayed significant increases in serine, trimethylamine oxide (TMAO), levulinic acid, 3-aminobutyric acid, citrate, isocitrate, and glucuronic acid (q ≤ 0.049) compared to IF1-P. Fecal short-chain fatty acid concentrations did not differ significantly by time or between groups (p ≥ 0.126). Interestingly, gastrointestinal symptoms were significantly reduced for the IF2-P group but not for the IF1-P group. Our results demonstrate that short-term IF modestly influenced the GM community structure and the plasma metabolome, suggesting these protocols could be viable for certain nutritional intervention strategies.
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Affiliation(s)
- Alex E. Mohr
- College of Health Solutions, Arizona State University, Phoenix, AZ, United States
| | - Paniz Jasbi
- College of Health Solutions, Arizona State University, Phoenix, AZ, United States
- School of Molecular Sciences, Arizona State University, Tempe, AZ, United States
| | - Devin A. Bowes
- Center for Health Through Microbiomes, The Biodesign Institute, Arizona State University, Tempe, AZ, United States
| | - Blake Dirks
- Center for Health Through Microbiomes, The Biodesign Institute, Arizona State University, Tempe, AZ, United States
| | - Corrie M. Whisner
- College of Health Solutions, Arizona State University, Phoenix, AZ, United States
- Center for Health Through Microbiomes, The Biodesign Institute, Arizona State University, Tempe, AZ, United States
| | - Karen M. Arciero
- Human Nutrition and Metabolism Laboratory, Department of Health and Human Physiological Sciences, Skidmore College, Saratoga Springs, NY, United States
| | - Michelle Poe
- Human Nutrition and Metabolism Laboratory, Department of Health and Human Physiological Sciences, Skidmore College, Saratoga Springs, NY, United States
| | - Haiwei Gu
- College of Health Solutions, Arizona State University, Phoenix, AZ, United States
- Center for Translational Science, Florida International University, Port St. Lucie, FL, United States
| | | | - Karen L. Sweazea
- College of Health Solutions, Arizona State University, Phoenix, AZ, United States
- School of Life Sciences, Arizona State University, Tempe, AZ, United States
| | - Paul J. Arciero
- Human Nutrition and Metabolism Laboratory, Department of Health and Human Physiological Sciences, Skidmore College, Saratoga Springs, NY, United States
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Sultan N, Varney JE, Halmos EP, Biesiekierski JR, Yao CK, Muir JG, Gibson PR, Tuck CJ. How to Implement the 3-Phase FODMAP Diet Into Gastroenterological Practice. J Neurogastroenterol Motil 2022; 28:343-356. [PMID: 35799231 PMCID: PMC9274476 DOI: 10.5056/jnm22035] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 04/12/2022] [Indexed: 12/04/2022] Open
Abstract
Background/Aims The 3-phase fermentable oligo-, di-, mono-saccharides, and polyols (FODMAP) diet has shown a high level of efficacy in irritable bowel syndrome, largely based on dietitian delivered education. However, access to dietitians can be limited, and challenges exist when applying the diet to a wide range of cultures, such as limited FODMAP analysis of local foods. This review aims to discuss ways to optimally use the FODMAP diet in practice in a wide range of cultures, directed at gastroenterologists from a dietitian's perspective. Methods Recent literature was analysed via search databases including Medline, CINAHL, PubMed and Scopus. Results The dietetic process involves detailed assessment and follow-up through the 3 stages of the FODMAP diet (restriction, re-introduction, and long-term maintenance). Emerging evidence suggests the diet can be delivered by other health professionals such as the gastroenterologist or nurse, but training on how to do so successfully would be needed. Self-guided approaches through use of technology or specialised food delivery services may be an alternative when dietitians are not available, but efficacy data is limited. Regardless of delivery mode, nutritional and psychological risks of the diet must be mitigated. Additionally, culturally appropriate education must be provided, with accommodations necessary when the FODMAP content of local foods are unknown. Conclusion While the diet has shown improved irritable bowel syndrome outcomes across studies, it is important to acknowledge the essential role of dietitians in implementing, tailoring, and managing the diet to achieve the best outcome for each individual.
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Affiliation(s)
- Nessmah Sultan
- Department of Dietetics, Nutrition and Sport, La Trobe University, Bundoora, Australia
| | - Jane E Varney
- Department of Gastroenterology, Monash University, Melbourne, Australia
| | - Emma P Halmos
- Department of Gastroenterology, Monash University, Melbourne, Australia
| | - Jessica R Biesiekierski
- Department of Gastroenterology, Monash University, Melbourne, Australia
- Department of Nutrition, Dietetics and Food, Monash University, Notting Hill, Australia
| | - Chu K Yao
- Department of Gastroenterology, Monash University, Melbourne, Australia
| | - Jane G Muir
- Department of Gastroenterology, Monash University, Melbourne, Australia
| | - Peter R Gibson
- Department of Gastroenterology, Monash University, Melbourne, Australia
| | - Caroline J Tuck
- Department of Dietetics, Nutrition and Sport, La Trobe University, Bundoora, Australia
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Simons M, Taft TH, Doerfler B, Ruddy JS, Bollipo S, Nightingale S, Siau K, van Tilburg MAL. Narrative review: Risk of eating disorders and nutritional deficiencies with dietary therapies for irritable bowel syndrome. Neurogastroenterol Motil 2022; 34:e14188. [PMID: 34254719 DOI: 10.1111/nmo.14188] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 04/20/2021] [Accepted: 05/05/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND AIMS Dietary treatments are growing in popularity as interventions for chronic digestive conditions. Patients with irritable bowel syndrome (IBS) often change their eating behaviors to mitigate symptoms. This can occur under the direction of their physician, a dietitian, or be self-directed. Poorly implemented and monitored diet treatments occur frequently with considerable risks for negative consequences. We aim to review the literature related to dietary treatments and risks associated with nutritional deficiencies and disordered eating. METHODS Searches were conducted from June to December 2020 on PubMed, MEDLINE, EMBASE, DARE and the Cochrane Database of Systematic Reviews using relevant keywords based on the Patient, Intervention, Comparator and Outcome (PICO) format. Studies included both adult and pediatric populations. Results are synthesized into a narrative review. RESULTS While dietary approaches are efficacious in many research studies, their translation to clinical practice has been less clear. Patients with IBS are at risk for nutritional deficiencies, disordered eating, increased anxiety, and decreases in quality of life in both adult and pediatric groups. CONCLUSIONS Physicians prescribing dietary treatment for IBS should be aware of nutritional and psychological risks and implement mitigation measures. These include using a combination of brief, validated questionnaires and clinical history, and collaboration with registered dietitians and/or psychologists. Recommendations for clinical decisions are provided.
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Affiliation(s)
- Madison Simons
- Division of Gastroenterology & Hepatology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Tiffany H Taft
- Division of Gastroenterology & Hepatology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Bethany Doerfler
- Division of Gastroenterology & Hepatology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | | | - Steven Bollipo
- School of Medicine and Public Health, University of Newcastle, Newcastle, NSW, Australia
| | - Scott Nightingale
- School of Medicine and Public Health, University of Newcastle, Newcastle, NSW, Australia.,Hunter Medical Research Institute, New Lambton, NSW, Australia
| | - Keith Siau
- The Dudley Group, NHS Foundation Trust, Dudley, UK
| | - Miranda A L van Tilburg
- College of Pharmacy & Health Sciences, Campbell University, Buies Creek, NC, USA.,Division of Gastroenterology and Hepatology, School of Medicine, University of North Carolina, Chapel Hill, NC, USA.,School of Social Work, University of Washington, Seattle, WA, USA
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7
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Shahzad H, Hussain MM, Abid A, Sattar S, Imtiaz B, Abid S. Impact of Gastrointestinal Diseases on Health-Related Quality of Life of Patients in Pakistan. Cureus 2021; 13:e17374. [PMID: 34584784 PMCID: PMC8456380 DOI: 10.7759/cureus.17374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/22/2021] [Indexed: 11/05/2022] Open
Abstract
Objective This study aimed to evaluate the impact of gastrointestinal (GI) diseases on health-related quality of life (HRQoL) in Pakistani patients. Methods A cross-sectional study was conducted from 1st January 2019 to 15th February 2019 at a tertiary care hospital in Pakistan by employing a self-administered questionnaire called Gastrointestinal Quality of Life Index (GIQLI). Questionnaires were distributed among the patients presenting to outpatient gastroenterology clinics to evaluate their HRQoL. Results A total of 199 patients were included in this study, and their mean GIQLI score was 87.8 ± 17.8. Results showed that more severe core symptoms can lead to a poorer QoL. Overall GIQLI scores and most of its domain scores were lower in females as compared to males (p-value: 0.02). Obese patients had an overall lower mean GIQLI score including in the GI, psychological, and social domains while advanced age was associated with a higher disease-specific GIQLI score. Conclusion Based on our findings, GI diseases negatively impact the HRQoL in patients. Physicians need to consider the different domains of QoL as part of a holistic approach to treating these patients.
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Affiliation(s)
| | | | - Adeel Abid
- Gastroenterology, Aga Khan University, Karachi, PAK
| | | | | | - Shahab Abid
- Gastroenterology, Aga Khan University, Karachi, PAK
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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: 5] [Impact Index Per Article: 1.7] [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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