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Rahmanian M, Fathi M, Eftekhari M, Vakili K, Deravi N, Yaghoobpoor S, Sharifi H, Zeinodini R, Babajani A, Niknejad H. Developing a novel hypothesis to enhance mental resilience via targeting Faecalibacterium prausnitzii in gut-brain axis. Med Hypotheses 2024; 192:111468. [DOI: 10.1016/j.mehy.2024.111468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2024]
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2
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Apetroaei MM, Fragkiadaki P, Velescu BȘ, Baliou S, Renieri E, Dinu-Pirvu CE, Drăgănescu D, Vlăsceanu AM, Nedea MI(I, Udeanu DI, Docea AO, Tsatsakis A, Arsene AL. Pharmacotherapeutic Considerations on Telomere Biology: The Positive Effect of Pharmacologically Active Substances on Telomere Length. Int J Mol Sci 2024; 25:7694. [PMID: 39062937 PMCID: PMC11276808 DOI: 10.3390/ijms25147694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Revised: 07/06/2024] [Accepted: 07/10/2024] [Indexed: 07/28/2024] Open
Abstract
Telomeres are part of chromatin structures containing repeated DNA sequences, which function as protective caps at the ends of chromosomes and prevent DNA degradation and recombination, thus ensuring the integrity of the genome. While telomere length (TL) can be genetically inherited, TL shortening has been associated with ageing and multiple xenobiotics and bioactive substances. TL has been characterised as a reliable biomarker for the predisposition to developing chronic pathologies and their progression. This narrative review aims to provide arguments in favour of including TL measurements in a complex prognostic and diagnostic panel of chronic pathologies and the importance of assessing the effect of different pharmacologically active molecules on the biology of telomeres. Medicines used in the management of cardiovascular diseases, diabetes, schizophrenia, hormone replacement therapy at menopause, danazol, melatonin, and probiotics have been studied for their positive protective effects against TL shortening. All these classes of drugs are analysed in the present review, with a particular focus on the molecular mechanisms involved.
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Affiliation(s)
- Miruna-Maria Apetroaei
- Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, 6 Traian Vuia Street, 020956 Bucharest, Romania; (M.-M.A.); (C.E.D.-P.); (D.D.); (A.M.V.); (M.I.N.); (D.I.U.); (A.L.A.)
| | - Persefoni Fragkiadaki
- Laboratory of Toxicology and Forensic Sciences, Medical School, University of Crete, Voutes, 71003 Heraklion, Greece; (P.F.); (S.B.); (E.R.); (A.T.)
- Lifeplus S.A., Science & Technological Park of Crete, C Building, Vassilika Vouton, 70013 Heraklion, Greece
| | - Bruno Ștefan Velescu
- Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, 6 Traian Vuia Street, 020956 Bucharest, Romania; (M.-M.A.); (C.E.D.-P.); (D.D.); (A.M.V.); (M.I.N.); (D.I.U.); (A.L.A.)
| | - Stella Baliou
- Laboratory of Toxicology and Forensic Sciences, Medical School, University of Crete, Voutes, 71003 Heraklion, Greece; (P.F.); (S.B.); (E.R.); (A.T.)
- Lifeplus S.A., Science & Technological Park of Crete, C Building, Vassilika Vouton, 70013 Heraklion, Greece
| | - Elisavet Renieri
- Laboratory of Toxicology and Forensic Sciences, Medical School, University of Crete, Voutes, 71003 Heraklion, Greece; (P.F.); (S.B.); (E.R.); (A.T.)
- Lifeplus S.A., Science & Technological Park of Crete, C Building, Vassilika Vouton, 70013 Heraklion, Greece
| | - Cristina Elena Dinu-Pirvu
- Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, 6 Traian Vuia Street, 020956 Bucharest, Romania; (M.-M.A.); (C.E.D.-P.); (D.D.); (A.M.V.); (M.I.N.); (D.I.U.); (A.L.A.)
| | - Doina Drăgănescu
- Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, 6 Traian Vuia Street, 020956 Bucharest, Romania; (M.-M.A.); (C.E.D.-P.); (D.D.); (A.M.V.); (M.I.N.); (D.I.U.); (A.L.A.)
| | - Ana Maria Vlăsceanu
- Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, 6 Traian Vuia Street, 020956 Bucharest, Romania; (M.-M.A.); (C.E.D.-P.); (D.D.); (A.M.V.); (M.I.N.); (D.I.U.); (A.L.A.)
| | - Marina Ionela (Ilie) Nedea
- Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, 6 Traian Vuia Street, 020956 Bucharest, Romania; (M.-M.A.); (C.E.D.-P.); (D.D.); (A.M.V.); (M.I.N.); (D.I.U.); (A.L.A.)
| | - Denisa Ioana Udeanu
- Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, 6 Traian Vuia Street, 020956 Bucharest, Romania; (M.-M.A.); (C.E.D.-P.); (D.D.); (A.M.V.); (M.I.N.); (D.I.U.); (A.L.A.)
| | - Anca Oana Docea
- Department of Toxicology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania;
| | - Artistidis Tsatsakis
- Laboratory of Toxicology and Forensic Sciences, Medical School, University of Crete, Voutes, 71003 Heraklion, Greece; (P.F.); (S.B.); (E.R.); (A.T.)
- Lifeplus S.A., Science & Technological Park of Crete, C Building, Vassilika Vouton, 70013 Heraklion, Greece
| | - Andreea Letiția Arsene
- Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, 6 Traian Vuia Street, 020956 Bucharest, Romania; (M.-M.A.); (C.E.D.-P.); (D.D.); (A.M.V.); (M.I.N.); (D.I.U.); (A.L.A.)
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Wu SI, Lee MC, Chen WL, Huang CC. Lacticaseibacillus paracasei PS23 increases ghrelin levels and modulates microbiota composition: a post-hoc analysis of a randomized controlled study. Food Funct 2024; 15:6523-6535. [PMID: 38805370 DOI: 10.1039/d4fo01328j] [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: 05/30/2024]
Abstract
Muscle damage can occur due to excessive, high-intensity, or inappropriate exercise. It is crucial for athletes and sports enthusiasts to have access to ways that expedite their recovery and alleviate discomfort. Our previous clinical trial demonstrated the anti-inflammatory and muscle damage-ameliorating properties of Lacticaseibacillus paracasei PS23 (PS23), prompting us to further explore the role of this probiotic in muscle damage recovery. This post-hoc analysis of a randomized controlled study investigated potential mediators between the intake of PS23 and the prevention of strength loss after muscle damage. We recruited 105 students from a sports university who had participated in the previously published clinical trial. These participants were randomly allocated to three groups, receiving capsuled live PS23 (L-PS23), heat-treated PS23 (HT-PS23), or a placebo over a period of six weeks. Baseline and endpoint measurements were taken for the levels of circulating ghrelin and other blood markers, stress, mood, quality of life, and the fecal microbiota. A significant increase in ghrelin levels was recorded in the L-PS23 group compared to the other groups. Additionally, both L-PS23 and HT-PS23 interventions led to positive shifts in the gut microbiota composition, particularly in elevated Lacticaseibacillus, Blautia, and Lactobacillus populations. The abundance of these bacteria was positively correlated with exercise performance and inversely correlated with inflammatory markers. In conclusion, dietary supplementation with PS23 may enhance exercise performance and influence muscle damage by increasing ghrelin levels and modulating the gut microbiota composition. Further clarification of the possible mechanisms and clinical implications is required.
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Affiliation(s)
- Shu-I Wu
- Department of Medicine, MacKay Medical College, New Taipei City, Taiwan.
- Section of Psychiatry and Suicide Prevention Center, MacKay Memorial Hospital, Taipei, Taiwan
| | - Mon-Chien Lee
- Graduate Institute of Sports Science, National Taiwan Sport University, Taoyuan City, Taiwan
- Center for General Education, Taipei Medical University, Taipei, Taiwan
| | - Wan-Lin Chen
- Department of Medical Research, Mackay Memorial Hospital, Taipei, Taiwan
| | - Chi-Chang Huang
- Graduate Institute of Sports Science, National Taiwan Sport University, Taoyuan City, Taiwan
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Gawlik-Kotelnicka O, Margulska A, Płeska K, Skowrońska A, Strzelecki D. Metabolic Status Influences Probiotic Efficacy for Depression-PRO-DEMET Randomized Clinical Trial Results. Nutrients 2024; 16:1389. [PMID: 38732635 PMCID: PMC11085729 DOI: 10.3390/nu16091389] [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: 04/08/2024] [Revised: 04/29/2024] [Accepted: 04/30/2024] [Indexed: 05/13/2024] Open
Abstract
Probiotics may represent a safe and easy-to-use treatment option for depression or its metabolic comorbidities. However, it is not known whether metabolic features can influence the efficacy of probiotics treatments for depression. This trial involved a parallel-group, prospective, randomized, double-blind, controlled design. In total, 116 participants with depression received a probiotic preparation containing Lactobacillus helveticus Rosell®-52 and Bifidobacterium longum Rosell®-175 or placebo over 60 days. The psychometric data were assessed longitudinally at five time-points. Data for blood pressure, body weight, waist circumference, complete blood count, serum levels of C-reactive protein, cholesterol, triglycerides, and fasting glucose were measured at the beginning of the intervention period. There was no advantage of probiotics usage over placebo in the depression score overall (PRO vs. PLC: F(1.92) = 0.58; p = 0.45). However, we found a higher rate of minimum clinically important differences in patients supplemented with probiotics than those allocated to placebo generally (74.5 vs. 53.5%; X2(1,n = 94) = 4.53; p = 0.03; NNT = 4.03), as well as in the antidepressant-treated subgroup. Moreover, we found that the more advanced the pre-intervention metabolic abnormalities (such as overweight, excessive central adipose tissue, and liver steatosis), the lower the improvements in psychometric scores. A higher baseline stress level was correlated with better improvements. The current probiotic formulations may only be used as complementary treatments for depressive disorders. Metabolic abnormalities may require more complex treatments. ClinicalTrials.gov identifier: NCT04756544.
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Affiliation(s)
- Oliwia Gawlik-Kotelnicka
- Department of Affective and Psychotic Disorders, Medical University of Lodz, Czechoslowacka Street 251, 92-216 Lodz, Poland; (A.S.); (D.S.)
| | - Aleksandra Margulska
- Department of Adolescent Psychiatry, Medical University of Lodz, Czechoslowacka Street 8/10, 92-216 Lodz, Poland;
| | - Kacper Płeska
- Faculty of Medicine, Medical University of Lodz, Kosciuszki Avenue 4, 90-419 Lodz, Poland;
| | - Anna Skowrońska
- Department of Affective and Psychotic Disorders, Medical University of Lodz, Czechoslowacka Street 251, 92-216 Lodz, Poland; (A.S.); (D.S.)
| | - Dominik Strzelecki
- Department of Affective and Psychotic Disorders, Medical University of Lodz, Czechoslowacka Street 251, 92-216 Lodz, Poland; (A.S.); (D.S.)
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Zidan S, Hilary S, Al Dhaheri AS, Cheikh Ismail L, Ali HI, Apostolopoulos V, Stojanovska L. Could psychobiotics and fermented foods improve mood in middle-aged and older women? Maturitas 2024; 181:107903. [PMID: 38157685 DOI: 10.1016/j.maturitas.2023.107903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 12/06/2023] [Accepted: 12/15/2023] [Indexed: 01/03/2024]
Abstract
Menopause is a natural physiological phase during which women experience dramatic hormonal fluctuations. These lead to many symptoms, such as depression and anxiety, which, in turn, can negatively affect quality of life. Proper nutrition has an influential role in alleviating depression as well as anxiety. It is well known that gut microbiota dysbiosis contributes to the development of mood disorder. There is mounting evidence that modulating the gut-brain axis may aid in improving mood swings. In this context, this narrative review summarizes recent findings on how aging changes the composition of the gut microbiota and on the association between gut microbiota and mood disorders. In addition, it evaluates the effectiveness of psychobiotics and fermented foods in treating mood swings in middle-aged and older women. A search was done using PubMed, Scopus, and Google Scholar, and thirteen recent articles are included in this review. It is evident that psychobiotic supplementation and fermented foods can improve mood swings via several routes. However, these conclusions are based on only a few studies in middle-aged and older women. Therefore, long-term, well-designed randomized controlled trials are required to fully evaluate whether psychobiotics and fermented foods can be used to treat mood swings in this population.
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Affiliation(s)
- Souzan Zidan
- Department of Nutrition and Health, College of Medicine and Health Sciences, United Arab Emirates University, PO Box 15551, Al Ain, United Arab Emirates.
| | - Serene Hilary
- Department of Nutrition and Health, College of Medicine and Health Sciences, United Arab Emirates University, PO Box 15551, Al Ain, United Arab Emirates
| | - Ayesha S Al Dhaheri
- Department of Nutrition and Health, College of Medicine and Health Sciences, United Arab Emirates University, PO Box 15551, Al Ain, United Arab Emirates
| | - Leila Cheikh Ismail
- Department of Clinical Nutrition and Dietetics, College of Health Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates; Nuffield Department of Women's and Reproductive Health, University of Oxford, Oxford, United Kingdom
| | - Habiba I Ali
- Department of Nutrition and Health, College of Medicine and Health Sciences, United Arab Emirates University, PO Box 15551, Al Ain, United Arab Emirates
| | - Vasso Apostolopoulos
- Institute for Health and Sport, Victoria University, PO Box 14428, Melbourne, VIC 8001, Australia; Immunology Program, Australian Institute for Musculoskeletal Science (AIMSS), St Albans, VIC 3021, Australia
| | - Lily Stojanovska
- Department of Nutrition and Health, College of Medicine and Health Sciences, United Arab Emirates University, PO Box 15551, Al Ain, United Arab Emirates; Institute for Health and Sport, Victoria University, PO Box 14428, Melbourne, VIC 8001, Australia.
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Merkouris E, Mavroudi T, Miliotas D, Tsiptsios D, Serdari A, Christidi F, Doskas TK, Mueller C, Tsamakis K. Probiotics' Effects in the Treatment of Anxiety and Depression: A Comprehensive Review of 2014-2023 Clinical Trials. Microorganisms 2024; 12:411. [PMID: 38399815 PMCID: PMC10893170 DOI: 10.3390/microorganisms12020411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 02/11/2024] [Accepted: 02/17/2024] [Indexed: 02/25/2024] Open
Abstract
Changes in the gut microbiome can affect cognitive and psychological functions via the microbiota-gut-brain (MGB) axis. Probiotic supplements are thought to have largely positive effects on mental health when taken in sufficient amounts; however, despite extensive research having been conducted, there is a lack of consistent findings on the effects of probiotics on anxiety and depression and the associated microbiome alterations. The aim of our study is to systematically review the most recent literature of the last 10 years in order to clarify whether probiotics could actually improve depression and anxiety symptoms. Our results indicate that the majority of the most recent literature suggests a beneficial role of probiotics in the treatment of depression and anxiety, despite the existence of a substantial number of less positive findings. Given probiotics' potential to offer novel, personalized treatment options for mood disorders, further, better targeted research in psychiatric populations is needed to address concerns about the exact mechanisms of probiotics, dosing, timing of treatment, and possible differences in outcomes depending on the severity of anxiety and depression.
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Affiliation(s)
- Ermis Merkouris
- Neurology Department, Democritus University of Thrace, 68100 Alexandroupoli, Greece; (E.M.); (T.M.); (D.M.); (D.T.); (F.C.)
| | - Theodora Mavroudi
- Neurology Department, Democritus University of Thrace, 68100 Alexandroupoli, Greece; (E.M.); (T.M.); (D.M.); (D.T.); (F.C.)
| | - Daniil Miliotas
- Neurology Department, Democritus University of Thrace, 68100 Alexandroupoli, Greece; (E.M.); (T.M.); (D.M.); (D.T.); (F.C.)
| | - Dimitrios Tsiptsios
- Neurology Department, Democritus University of Thrace, 68100 Alexandroupoli, Greece; (E.M.); (T.M.); (D.M.); (D.T.); (F.C.)
- 3rd Neurology Department, Aristotle University, 54124 Thessaloniki, Greece
| | - Aspasia Serdari
- Department of Child and Adolescent Psychiatry, Medical School, Democritus University of Thrace, 68100 Alexandroupolis, Greece;
| | - Foteini Christidi
- Neurology Department, Democritus University of Thrace, 68100 Alexandroupoli, Greece; (E.M.); (T.M.); (D.M.); (D.T.); (F.C.)
| | | | - Christoph Mueller
- Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King’s College London, London SE5 8AB, UK;
- Biomedical Research Centre, South London and Maudsley NHS Foundation Trust, London SE5 8AF, UK
| | - Konstantinos Tsamakis
- Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King’s College London, London SE5 8AB, UK;
- Institute of Medical and Biomedical Education, St George’s, University of London, London SW17 0RE, UK
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Mäkelä SM, Griffin SM, Reimari J, Evans KC, Hibberd AA, Yeung N, Ibarra A, Junnila J, Turunen J, Beboso R, Chhokar B, Dinan TG, Cryan J, Patterson E. Efficacy and safety of Lacticaseibacillus paracasei Lpc-37® in students facing examination stress: A randomized, triple-blind, placebo-controlled clinical trial (the ChillEx study). Brain Behav Immun Health 2023; 32:100673. [PMID: 37662485 PMCID: PMC10474370 DOI: 10.1016/j.bbih.2023.100673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 06/27/2023] [Accepted: 07/30/2023] [Indexed: 09/05/2023] Open
Abstract
Lacticaseibacillus paracasei Lpc-37 (Lpc-37) has previously shown to reduce perceived stress in healthy adults. The ChillEx study investigated whether Lpc-37 reduces stress in a model of chronic examination stress in healthy students. One hundred ninety university students (18-40 y) were randomized to take 1.56 × 1010 colony-forming units of Lpc-37 or placebo (1:1) each day for 10 weeks, in a triple-blind, parallel, multicenter clinical trial consisting of six visits: two screening visits, a baseline visit, and visits at 4, 8, and 10 weeks after baseline. The primary objective was to demonstrate that Lpc-37 reduces stress, as measured by the change in state anxiety from baseline to just before the first examination, after 8 weeks using the State Trait Anxiety Inventory (STAI-state). Secondary objectives aimed to demonstrate that Lpc-37 modulates psychological stress-induced symptoms and biomarkers related to mood and sleep. An exploratory analysis of fecal microbiota composition was also conducted. There was no difference between Lpc-37 and placebo groups in the change of STAI-state score (estimate 1.03; 95% confidence interval [CI]: -1.62, 3.67; p = 0.446). None of the secondary outcomes resulted in significant results when corrected for multiplicity, but exploratory results were notable. Results showed an improvement in sleep-disturbance scores (odds ratio 0.30; 95% CI: 0.11, 0.82; p = 0.020) and reduction in duration of sleep (odds ratio 3.52; 95% CI: 1.46, 8.54; p = 0.005) on the Pittsburgh Sleep Quality Index questionnaire after 8 weeks in the Lpc-37 group compared to placebo. A reduction in Bond Lader VAS-alertness was also demonstrated in the Lpc-37 group compared to placebo (estimate -3.97; 95% CI: -7.78, -0.15; p = 0.042) just prior to the examination. Analysis of fecal microbiota found no differences between study groups for alpha and beta diversity or microbiota abundance. Adverse events were similar between groups. Vital signs, safety-related laboratory measures, and gastrointestinal parameters were stable during the trial. In conclusion, probiotic Lpc-37 was safe but had no effect on stress, mood, or anxiety in healthy university students in this model of chronic academic stress. ClinicalTrials.gov: NCT04125810.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Ronnie Beboso
- MeDiNova North London Dedicated Research Center, London, UK
| | - Balgit Chhokar
- MeDiNova East London Dedicated Research Center, London, UK
| | | | - John Cryan
- APC Microbiome Ireland, University College Cork, Cork, Ireland
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Hayer SS, Hwang S, Clayton JB. Antibiotic-induced gut dysbiosis and cognitive, emotional, and behavioral changes in rodents: a systematic review and meta-analysis. Front Neurosci 2023; 17:1237177. [PMID: 37719161 PMCID: PMC10504664 DOI: 10.3389/fnins.2023.1237177] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 08/18/2023] [Indexed: 09/19/2023] Open
Abstract
There are previous epidemiological studies reporting associations between antibiotic use and psychiatric symptoms. Antibiotic-induced gut dysbiosis and alteration of microbiota-gut-brain axis communication has been proposed to play a role in this association. In this systematic review and meta-analysis, we reviewed published articles that have presented results on changes in cognition, emotion, and behavior in rodents (rats and mice) after antibiotic-induced gut dysbiosis. We searched three databases-PubMed, Web of Science, and SCOPUS to identify such articles using dedicated search strings and extracted data from 48 articles. Increase in anxiety and depression-like behavior was reported in 32.7 and 40.7 percent of the study-populations, respectively. Decrease in sociability, social novelty preference, recognition memory and spatial cognition was found in 18.1, 35.3, 26.1, and 62.5 percent of the study-populations, respectively. Only one bacterial taxon (increase in gut Proteobacteria) showed statistically significant association with behavioral changes (increase in anxiety). There were no consistent findings with statistical significance for the potential biomarkers [Brain-derived neurotrophic factor (BDNF) expression in the hippocampus, serum corticosterone and circulating IL-6 and IL-1β levels]. Results of the meta-analysis revealed a significant association between symptoms of negative valence system (including anxiety and depression) and cognitive system (decreased spatial cognition) with antibiotic intake (p < 0.05). However, between-study heterogeneity and publication bias were statistically significant (p < 0.05). Risk of bias was evaluated to be high in the majority of the studies. We identified and discussed several reasons that could contribute to the heterogeneity between the results of the studies examined. The results of the meta-analysis provide promising evidence that there is indeed an association between antibiotic-induced gut dysbiosis and psychopathologies. However, inconsistencies in the implemented methodologies make generalizing these results difficult. Gut microbiota depletion using antibiotics may be a useful strategy to evaluate if and how gut microbes influence cognition, emotion, and behavior, but the heterogeneity in methodologies used precludes any definitive interpretations for a translational impact on clinical practice.
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Affiliation(s)
- Shivdeep S. Hayer
- Department of Biology, University of Nebraska at Omaha, Omaha, NE, United States
- Callitrichid Research Center, University of Nebraska at Omaha, Omaha, NE, United States
- Nebraska Food for Health Center, University of Nebraska-Lincoln, Lincoln, NE, United States
- Department of Population Medicine, University of Guelph, Guelph, ON, Canada
| | - Soonjo Hwang
- Department of Psychiatry, University of Nebraska Medical Center, Omaha, NE, United States
| | - Jonathan B. Clayton
- Department of Biology, University of Nebraska at Omaha, Omaha, NE, United States
- Callitrichid Research Center, University of Nebraska at Omaha, Omaha, NE, United States
- Nebraska Food for Health Center, University of Nebraska-Lincoln, Lincoln, NE, United States
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, United States
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, United States
- Primate Microbiome Project, University of Nebraska-Lincoln, Lincoln, NE, United States
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9
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Boehme M, Rémond-Derbez N, Lerond C, Lavalle L, Keddani S, Steinmann M, Rytz A, Dalile B, Verbeke K, Van Oudenhove L, Steiner P, Berger B, Vicario M, Bergonzelli G, Colombo Mottaz S, Hudry J. Bifidobacterium longum subsp. longum Reduces Perceived Psychological Stress in Healthy Adults: An Exploratory Clinical Trial. Nutrients 2023; 15:3122. [PMID: 37513541 PMCID: PMC10383821 DOI: 10.3390/nu15143122] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 07/02/2023] [Accepted: 07/07/2023] [Indexed: 07/30/2023] Open
Abstract
Emerging science shows that probiotic intake may impact stress and mental health. We investigated the effect of a 6-week intervention with Bifidobacterium longum (BL) NCC3001 (1 × 1010 CFU/daily) on stress-related psychological and physiological parameters in 45 healthy adults with mild-to-moderate stress using a randomized, placebo-controlled, two-arm, parallel, double-blind design. The main results showed that supplementation with the probiotic significantly reduced the perceived stress and improved the subjective sleep quality score compared to placebo. Comparing the two groups, momentary subjective assessments concomitant to the Maastricht Acute Stress Test revealed a lower amount of pain experience in the probiotic group and a higher amount of relief at the end of the procedure in the placebo group, reflected by higher scores in the positive affect state. The awakening of the salivary cortisol response was not affected by the intervention, yet the reduction observed in the salivary cortisol stress response post-intervention was higher in the placebo group than the probiotic group. Multivariate analysis further indicated that a reduction in perceived stress correlated with a reduction in anxiety, in depression, and in the cortisol awakening response after the 6-week intervention. This exploratory trial provides promising insights into BL NCC3001 to reduce perceived stress in a healthy population and supports the potential of nutritional solutions including probiotics to improve mental health.
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Affiliation(s)
- Marcus Boehme
- Nestlé Institute of Health Sciences, Société des Produits Nestlé S.A., 1000 Lausanne 26, Switzerland; (N.R.-D.); (S.K.); (M.S.); (P.S.); (B.B.); (M.V.); (J.H.)
| | - Noëla Rémond-Derbez
- Nestlé Institute of Health Sciences, Société des Produits Nestlé S.A., 1000 Lausanne 26, Switzerland; (N.R.-D.); (S.K.); (M.S.); (P.S.); (B.B.); (M.V.); (J.H.)
| | - Clara Lerond
- Nestlé Institute of Health Sciences, Société des Produits Nestlé S.A., 1000 Lausanne 26, Switzerland; (N.R.-D.); (S.K.); (M.S.); (P.S.); (B.B.); (M.V.); (J.H.)
| | - Luca Lavalle
- Clinical Research Unit, Société des Produits Nestlé S.A., 1000 Lausanne 26, Switzerland; (L.L.); (A.R.); (S.C.M.)
| | - Sonia Keddani
- Nestlé Institute of Health Sciences, Société des Produits Nestlé S.A., 1000 Lausanne 26, Switzerland; (N.R.-D.); (S.K.); (M.S.); (P.S.); (B.B.); (M.V.); (J.H.)
| | - Myriam Steinmann
- Nestlé Institute of Health Sciences, Société des Produits Nestlé S.A., 1000 Lausanne 26, Switzerland; (N.R.-D.); (S.K.); (M.S.); (P.S.); (B.B.); (M.V.); (J.H.)
| | - Andreas Rytz
- Clinical Research Unit, Société des Produits Nestlé S.A., 1000 Lausanne 26, Switzerland; (L.L.); (A.R.); (S.C.M.)
| | - Boushra Dalile
- Translational Research Center in Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism, Faculty of Medicine, KU Leuven, 3000 Leuven, Belgium; (B.D.); (K.V.); (L.V.O.)
- Leuven Brain Institute, KU Leuven, 3000 Leuven, Belgium
| | - Kristin Verbeke
- Translational Research Center in Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism, Faculty of Medicine, KU Leuven, 3000 Leuven, Belgium; (B.D.); (K.V.); (L.V.O.)
| | - Lukas Van Oudenhove
- Translational Research Center in Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism, Faculty of Medicine, KU Leuven, 3000 Leuven, Belgium; (B.D.); (K.V.); (L.V.O.)
- Leuven Brain Institute, KU Leuven, 3000 Leuven, Belgium
| | - Pascal Steiner
- Nestlé Institute of Health Sciences, Société des Produits Nestlé S.A., 1000 Lausanne 26, Switzerland; (N.R.-D.); (S.K.); (M.S.); (P.S.); (B.B.); (M.V.); (J.H.)
| | - Bernard Berger
- Nestlé Institute of Health Sciences, Société des Produits Nestlé S.A., 1000 Lausanne 26, Switzerland; (N.R.-D.); (S.K.); (M.S.); (P.S.); (B.B.); (M.V.); (J.H.)
| | - Maria Vicario
- Nestlé Institute of Health Sciences, Société des Produits Nestlé S.A., 1000 Lausanne 26, Switzerland; (N.R.-D.); (S.K.); (M.S.); (P.S.); (B.B.); (M.V.); (J.H.)
| | - Gabriela Bergonzelli
- Nestlé Institute of Health Sciences, Société des Produits Nestlé S.A., 1000 Lausanne 26, Switzerland; (N.R.-D.); (S.K.); (M.S.); (P.S.); (B.B.); (M.V.); (J.H.)
| | - Sara Colombo Mottaz
- Clinical Research Unit, Société des Produits Nestlé S.A., 1000 Lausanne 26, Switzerland; (L.L.); (A.R.); (S.C.M.)
| | - Julie Hudry
- Nestlé Institute of Health Sciences, Société des Produits Nestlé S.A., 1000 Lausanne 26, Switzerland; (N.R.-D.); (S.K.); (M.S.); (P.S.); (B.B.); (M.V.); (J.H.)
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10
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Rusch JA, Layden BT, Dugas LR. Signalling cognition: the gut microbiota and hypothalamic-pituitary-adrenal axis. Front Endocrinol (Lausanne) 2023; 14:1130689. [PMID: 37404311 PMCID: PMC10316519 DOI: 10.3389/fendo.2023.1130689] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 05/25/2023] [Indexed: 07/06/2023] Open
Abstract
Cognitive function in humans depends on the complex and interplay between multiple body systems, including the hypothalamic-pituitary-adrenal (HPA) axis. The gut microbiota, which vastly outnumbers human cells and has a genetic potential that exceeds that of the human genome, plays a crucial role in this interplay. The microbiota-gut-brain (MGB) axis is a bidirectional signalling pathway that operates through neural, endocrine, immune, and metabolic pathways. One of the major neuroendocrine systems responding to stress is the HPA axis which produces glucocorticoids such as cortisol in humans and corticosterone in rodents. Appropriate concentrations of cortisol are essential for normal neurodevelopment and function, as well as cognitive processes such as learning and memory, and studies have shown that microbes modulate the HPA axis throughout life. Stress can significantly impact the MGB axis via the HPA axis and other pathways. Animal research has advanced our understanding of these mechanisms and pathways, leading to a paradigm shift in conceptual thinking about the influence of the microbiota on human health and disease. Preclinical and human trials are currently underway to determine how these animal models translate to humans. In this review article, we summarize the current knowledge of the relationship between the gut microbiota, HPA axis, and cognition, and provide an overview of the main findings and conclusions in this broad field.
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Affiliation(s)
- Jody A. Rusch
- Division of Chemical Pathology, Department of Pathology, University of Cape Town, Cape Town, South Africa
- C17 Chemical Pathology Laboratory, Groote Schuur Hospital, National Health Laboratory Service, Cape Town, South Africa
| | - Brian T. Layden
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Illinois at Chicago, Chicago, IL, United States
- Department of Medicine, Jesse Brown Veterans Affairs Medical Center, Chicago, IL, United States
| | - Lara R. Dugas
- Division of Epidemiology and Biostatistics, School of Public Health, University of Cape Town, Cape Town, South Africa
- Public Health Sciences, Parkinson School of Health Sciences and Public Health, Loyola University Chicago, Maywood, IL, United States
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11
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Yeramilli V, Cheddadi R, Shah J, Brawner K, Martin C. A Review of the Impact of Maternal Prenatal Stress on Offspring Microbiota and Metabolites. Metabolites 2023; 13:metabo13040535. [PMID: 37110193 PMCID: PMC10142778 DOI: 10.3390/metabo13040535] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 04/06/2023] [Accepted: 04/07/2023] [Indexed: 04/29/2023] Open
Abstract
Maternal prenatal stress exposure affects the development of offspring. We searched for articles in the PubMed database and reviewed the evidence for how prenatal stress alters the composition of the microbiome, the production of microbial-derived metabolites, and regulates microbiome-induced behavioral changes in the offspring. The gut-brain signaling axis has gained considerable attention in recent years and provides insights into the microbial dysfunction in several metabolic disorders. Here, we reviewed evidence from human studies and animal models to discuss how maternal stress can modulate the offspring microbiome. We will discuss how probiotic supplementation has a profound effect on the stress response, the production of short chain fatty acids (SCFAs), and how psychobiotics are emerging as novel therapeutic targets. Finally, we highlight the potential molecular mechanisms by which the effects of stress are transmitted to the offspring and discuss how the mitigation of early-life stress as a risk factor can improve the birth outcomes.
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Affiliation(s)
- Venkata Yeramilli
- Division of Pediatric Surgery, Department of Surgery, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Riadh Cheddadi
- Division of Pediatric Surgery, Department of Surgery, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Juhi Shah
- Burnett School of Medicine, Texas Christian University, Fort Worth, TX 76129, USA
| | - Kyle Brawner
- Department of Biology, Lipscomb University, Nashville, TN 37204, USA
| | - Colin Martin
- Division of Pediatric Surgery, Department of Surgery, University of Alabama at Birmingham, Birmingham, AL 35294, USA
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12
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Morales-Torres R, Carrasco-Gubernatis C, Grasso-Cladera A, Cosmelli D, Parada FJ, Palacios-García I. Psychobiotic Effects on Anxiety Are Modulated by Lifestyle Behaviors: A Randomized Placebo-Controlled Trial on Healthy Adults. Nutrients 2023; 15:nu15071706. [PMID: 37049546 PMCID: PMC10096963 DOI: 10.3390/nu15071706] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/22/2023] [Accepted: 03/23/2023] [Indexed: 04/03/2023] Open
Abstract
Psychobiotics are modulators of the Microbiota-Gut-Brain Axis (MGBA) with promising benefits to mental health. Lifestyle behaviors are established modulators of both mental health and the MGBA. This randomized placebo-controlled clinical trial (NCT04823533) on healthy adults (N = 135) tested 4 weeks of probiotic supplementation (Lactobacillus helveticus R0052 and Bifidobacterium longum R0175). We assessed effects on wellbeing, quality of life, emotional regulation, anxiety, mindfulness and interoceptive awareness. We then analyzed if lifestyle behaviors modulated probiotic effectiveness. Results showed no significant effects of probiotic intake in whole sample outcomes. Correlational analyses revealed Healthy Behaviors were significantly correlated with wellbeing across scales. Moreover, the linear mixed-effects model showed that the interaction between high scores in Healthy Behaviors and probiotic intake was the single significant predictor of positive effects on anxiety, emotional regulation, and mindfulness in post-treatment outcomes. These findings highlight the relevance of controlling for lifestyle behaviors in psychobiotic and mental health research.
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13
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Berding K, Bastiaanssen TFS, Moloney GM, Boscaini S, Strain CR, Anesi A, Long-Smith C, Mattivi F, Stanton C, Clarke G, Dinan TG, Cryan JF. Feed your microbes to deal with stress: a psychobiotic diet impacts microbial stability and perceived stress in a healthy adult population. Mol Psychiatry 2023; 28:601-610. [PMID: 36289300 PMCID: PMC9908549 DOI: 10.1038/s41380-022-01817-y] [Citation(s) in RCA: 38] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 09/18/2022] [Accepted: 09/23/2022] [Indexed: 11/09/2022]
Abstract
The impact of diet on the microbiota composition and the role of diet in supporting optimal mental health have received much attention in the last decade. However, whether whole dietary approaches can exert psychobiotic effects is largely understudied. Thus, we investigated the influence of a psychobiotic diet (high in prebiotic and fermented foods) on the microbial profile and function as well as on mental health outcomes in a healthy human population. Forty-five adults were randomized into either a psychobiotic (n = 24) or control (n = 21) diet for 4 weeks. Fecal microbiota composition and function was characterized using shotgun sequencing. Stress, overall health and diet were assessed using validated questionnaires. Metabolic profiling of plasma, urine and fecal samples was performed. Intervention with a psychobiotic diet resulted in reductions of perceived stress (32% in diet vs. 17% in control group), but not between groups. Similarly, biological marker of stress were not affected. Additionally, higher adherence to the diet resulted in stronger decreases in perceived stress. While the dietary intervention elicited only subtle changes in microbial composition and function, significant changes in the level of 40 specific fecal lipids and urinary tryptophan metabolites were observed. Lastly, microbial volatility was linked to greater changes in perceived stress scores in those on the psychobiotic diet. These results highlight that dietary approaches can be used to reduce perceived stress in a human cohort. Using microbiota-targeted diets to positively modulate gut-brain communication holds possibilities for the reduction of stress and stress-associated disorders, but additional research is warranted to investigate underlying mechanisms, including the role of the microbiota.
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Affiliation(s)
| | | | - Gerard M Moloney
- APC Microbiome Ireland, Cork, Ireland.,Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
| | | | - Conall R Strain
- APC Microbiome Ireland, Cork, Ireland.,Teagsac Food Research Centre, Moorepark, Fermoy, County Cork, Ireland
| | - Andrea Anesi
- Unit of Metabolomics, Research and Innovation Centre, Fondazione Edmund Mach, San Michele all'Adige, Italy
| | | | - Fulvio Mattivi
- Unit of Metabolomics, Research and Innovation Centre, Fondazione Edmund Mach, San Michele all'Adige, Italy.,Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, Trento, Italy
| | - Catherine Stanton
- APC Microbiome Ireland, Cork, Ireland.,Teagsac Food Research Centre, Moorepark, Fermoy, County Cork, Ireland.,Department of Psychiatry and Neurobehavioural Sciences, University College Cork, Cork, Ireland
| | - Gerard Clarke
- APC Microbiome Ireland, Cork, Ireland.,Department of Psychiatry and Neurobehavioural Sciences, University College Cork, Cork, Ireland
| | - Timothy G Dinan
- APC Microbiome Ireland, Cork, Ireland.,Department of Psychiatry and Neurobehavioural Sciences, University College Cork, Cork, Ireland
| | - John F Cryan
- APC Microbiome Ireland, Cork, Ireland. .,Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland.
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14
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Nobile V, Puoci F. Effect of a Multi-Strain Probiotic Supplementation to Manage Stress during the COVID-19 Pandemic: A Randomized, Double-Blind, Placebo-Controlled, Cross-Over Clinical Trial. Neuropsychobiology 2023; 82:61-71. [PMID: 36634645 PMCID: PMC9843736 DOI: 10.1159/000527956] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 10/31/2022] [Indexed: 01/14/2023]
Abstract
INTRODUCTION The COVID-19 pandemic strongly affected every aspect of the modern society, from health to socioeconomics, leading people to experience high levels of stress. METHODS A double-blind, cross-over, placebo-controlled clinical study was performed to investigate the ability of a food supplement containing two probiotic strains, Limosilactobacillus reuteri PBS072 and Bifidobacterium breve BB077, in supporting 33 healthy adults, working at a university, in stress management. The efficacy of the tested strains in influencing the stress response, in terms of mood and sleep behavior, was assessed using the following validated questionnaires: Profile of Mood State (POMS) and Pittsburgh Sleep Quality Index (PSQI). RESULTS Outcomes of the POMS and the PSQI demonstrated a significant reduction of the questionnaire's scores both versus baseline and placebo after 30 days of probiotic intake. CONCLUSIONS According to the results, the probiotic food supplement investigated showed a remarkable effect on stress management by improving the quality of sleep and the mood.
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Affiliation(s)
| | - Francesco Puoci
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Cosenza, Italy,*Francesco Puoci,
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15
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Jun J, Kasumova A, Tussing T, Mackos A, Justice S, McDaniel J. Probiotic supplements and stress-related occupational health outcomes: A scoping review. J Occup Health 2023; 65:e12404. [PMID: 37218068 PMCID: PMC10203357 DOI: 10.1002/1348-9585.12404] [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: 11/12/2022] [Revised: 03/30/2023] [Accepted: 05/01/2023] [Indexed: 05/24/2023] Open
Abstract
BACKGROUND Prolonged and constant stress from work often leads to numerous adverse health effects. In recent years, interest in probiotics, living microorganisms that can benefit their host when consumed in adequate amounts, to aid health and well-being has increased. This scoping review is to systematically evaluate the current state of science on the effects of probiotic supplements on health, stress, and stress-related symptoms among working adults in occupational settings. METHODS We performed a systematic scoping review following the Arksey and O'Malley Framework. Studies that examined the effects of probiotics on workers' health and stress-related indicators/outcomes in occupational settings were included. A comprehensive search was performed from November 2021 to January 2022 using MEDLINE/PubMed, Cochrane Library, CINAHL, PsychInfo, Scopus, and Embase. RESULTS A total of 14 papers met the inclusion and exclusion criteria. Probiotics consisted primarily of Lactobacillus and/or Bifidobacterium strains in various forms and doses. Three out of eight studies reported statistical differences in inflammatory markers or stress hormone levels between probiotic and placebo groups. Three of six reported reduced respiratory tract infection incidents in the probiotic groups and three out of four studies reported no differences in anxiety and depression between groups. Lastly, three studies found that absenteeism and presentism were lower in probiotic groups compared with placebo groups. CONCLUSION The potential benefits of probiotics exist; however, the measurements of outcomes, the types of probiotics used, and the characteristics of the intervention varied across studies. Further research is needed focusing on probiotics' direct and indirect mechanisms of action on the stress response and the standardization of strains and dosing.
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Affiliation(s)
- Jin Jun
- The Ohio State University College of NursingColumbusOhioUSA
| | | | - Todd Tussing
- The Ohio State University College of NursingColumbusOhioUSA
| | - Amy Mackos
- The Ohio State University College of NursingColumbusOhioUSA
| | - Sheryl Justice
- The Ohio State University College of NursingColumbusOhioUSA
| | - Jodi McDaniel
- The Ohio State University College of NursingColumbusOhioUSA
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16
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Zielińska D, Karbowiak M, Brzezicka A. The Role of Psychobiotics to Ensure Mental Health during the COVID-19 Pandemic-A Current State of Knowledge. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:11022. [PMID: 36078738 PMCID: PMC9518511 DOI: 10.3390/ijerph191711022] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 08/29/2022] [Accepted: 08/30/2022] [Indexed: 06/15/2023]
Abstract
Psychobiotics are defined as probiotics, mainly of the genus Lactobacillus and Bifidobacterium, that confer mental health benefits to the host when consumed in a particular quantity through the interaction with commensal gut microbiota. The gut microbiota, which means a diverse and dynamic population of microorganisms harboring the gastrointestinal tract, communicates with the brain and vice versa through the brain-gut axis. The mechanisms of action of psychobiotics may be divided into four groups: synthesis of neurotransmitters and neurochemicals, regulation of the HPA axis, influence on the immune system, and synthesis of metabolites. Recent years showed that the COVID-19 pandemic affected not only physical, but also mental health. Social isolation, fear of infection, the lack of adequate vaccine, disinformation, increased number of deaths, financial loss, quarantine, and lockdown are all factors can cause psychiatric problems. The aim of this review was to discuss the potential role of psychobiotic in light of the current problems, based on in vitro and in vivo studies, meta-analyses, clinical trials evidence, and registered studies assessing probiotics' therapeutic administration in the prevention or treatment of symptoms or side effects of COVID-19.
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Affiliation(s)
- Dorota Zielińska
- Department of Food Gastronomy and Food Hygiene, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences (WULS-SGGW), Nowoursynowska 159C Str., (Building No. 32), 02-776 Warsaw, Poland
| | - Marcelina Karbowiak
- Department of Food Gastronomy and Food Hygiene, Institute of Human Nutrition Sciences, Warsaw University of Life Sciences (WULS-SGGW), Nowoursynowska 159C Str., (Building No. 32), 02-776 Warsaw, Poland
| | - Aneta Brzezicka
- Neurocognitive Research Center, SWPS University of Social Sciences and Humanities, Chodakowska Str. 19/31, 03-815 Warsaw, Poland
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17
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Slykerman RF, Li E. A randomized trial of probiotic supplementation in nurses to reduce stress and viral illness. Sci Rep 2022; 12:14742. [PMID: 36042251 PMCID: PMC9427766 DOI: 10.1038/s41598-022-19104-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 08/24/2022] [Indexed: 11/17/2022] Open
Abstract
Animal studies demonstrate how the gut microbiota influence psychological health and immunity to viral infections through their actions along multiple dynamic pathways in the body. Considerable interest exists in probiotics to reduce stress and illness symptoms through beneficial effects in the gut, but translating pre-clinical evidence from animal models into humans remains challenging. We conducted a large trial in nurses working during the 2020 COVID19 pandemic year to establish whether daily ingestion of the probiotic Lactobacillus rhamnosus HN001 reduced perceived stress and the number of days participants reported symptoms of a viral illness. Our results showed no significant difference in perceived stress or the average number of illness days between probiotic supplemented nurses and the placebo group. Stress and viral illness symptoms reduced during the study for all participants, a trajectory likely influenced by societal-level factors. The powerful effect of a well-managed public health response to the COVID19 pandemic and the elimination of COVID19 from the community in 2020 may have altered the trajectory of stress levels and reduced circulating viral infections making it difficult to detect any effect of probiotic supplementation. Our study highlights the challenge in controlling environmental factors in human trials.
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Affiliation(s)
- Rebecca F Slykerman
- Department of Psychological Medicine, University of Auckland, Building 507, 22-30 Park Avenue, Grafton, Auckland, 1023, New Zealand.
| | - Eileen Li
- A Better Start - National Science Challenge University of Auckland, Auckland, New Zealand
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18
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He J, Li W, Deng J, Lin Q, Bai J, Zhang L, Fang Y. An insight into the health beneficial of probiotics dairy products: a critical review. Crit Rev Food Sci Nutr 2022; 63:11290-11309. [PMID: 35730254 DOI: 10.1080/10408398.2022.2090493] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Probiotic dairy products satisfy people's pursuit of health, and are widely favored because of their easy absorption, high nutritional value, and various health benefits. However, its effectiveness and safety are still controversial. This proposal aims to analyze the effect of probiotics on the quality characteristics of dairy products, clarify a series of physiological functions of probiotic dairy products and critically evaluate the effectiveness and safety of probiotic dairy products. Also, dairy products containing inactivated microorganisms were compared with probiotic products. The addition of probiotics enables dairy products to obtain unique quality characteristics, and probiotic dairy products have better health-promoting effects. This review will promote the further development of probiotic dairy products, provide directions for the research and development of probiotic-related products, and help guide the general public to choose and purchase probiotic fermentation products.
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Affiliation(s)
- JinTao He
- National Engineering Research Center of Rice and Byproduct Deep Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan, China
| | - Wen Li
- National Engineering Research Center of Rice and Byproduct Deep Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan, China
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing, Jiangsu, China
| | - Jing Deng
- National Engineering Research Center of Rice and Byproduct Deep Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan, China
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing, Jiangsu, China
| | - QinLu Lin
- National Engineering Research Center of Rice and Byproduct Deep Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan, China
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing, Jiangsu, China
| | - Jie Bai
- National Engineering Research Center of Rice and Byproduct Deep Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan, China
| | - Lin Zhang
- National Engineering Research Center of Rice and Byproduct Deep Processing, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan, China
| | - Yong Fang
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing, Jiangsu, China
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19
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Trifkovič KČ, Mičetić-Turk D, Kmetec S, Strauss M, Dahlen HG, Foster JP, Fijan S. Efficacy of Direct or Indirect Use of Probiotics for the Improvement of Maternal Depression during Pregnancy and in the Postnatal Period: A Systematic Review and Meta-Analysis. Healthcare (Basel) 2022; 10:970. [PMID: 35742022 PMCID: PMC9223194 DOI: 10.3390/healthcare10060970] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 05/13/2022] [Accepted: 05/17/2022] [Indexed: 12/21/2022] Open
Abstract
The mother and infant form a unique bond, with maternal mental health affecting the interactions with the infant and infant behaviours impacting maternal mental health. One of the possible mechanisms influencing maternal mental health is the manipulation of the gut-brain axis by consuming probiotic supplements. Probiotics can also have an indirect influence on maternal mental health via the modulation of the infant microbiome and consequently improving the infant's health and thus, indirectly leading to an improvement in maternal mood. This systematic review evaluated the efficacy of probiotics on maternal mental health by searching for randomised controlled trials via international databases: Cochrane Library, PubMed, Scopus, ScienceDirect, and Web of Science until January 2022. A meta-analysis was performed using the Cochrane Collaboration methodology where possible. We found seven clinical trials that included the word probiotics and addressed maternal depression and/or anxiety. Of these, five trials investigated the influence of maternal probiotic supplementation on the gut-brain axis. Two trials investigated the indirect influence of probiotics on maternal depression via supplementation of probiotics by infants and subsequent influence on the crying of colicky infants. Meta-analysis of two studies of pregnant and postnatal women and two studies of infants consuming probiotics on the outcome of the Edinburgh Postnatal Depression Scale for mothers showed no statistical difference. The findings indicate that maternal depression is very complex and is influenced by various bidirectional factors. One of the factors that can improve maternal mental health is probiotics, however, careful consideration must be given to correct strain selection as strain-specific effectiveness was observed. Further well-designed, robust clinical studies are warranted.
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Affiliation(s)
- Klavdija Čuček Trifkovič
- Faculty of Health Sciences, University of Maribor, Žitna ulica 15, 2000 Maribor, Slovenia; (K.Č.T.); (S.K.); (M.S.)
| | - Dušanka Mičetić-Turk
- Faculty of Medicine, University of Maribor, Taborska ulica 8, 2000 Maribor, Slovenia;
| | - Sergej Kmetec
- Faculty of Health Sciences, University of Maribor, Žitna ulica 15, 2000 Maribor, Slovenia; (K.Č.T.); (S.K.); (M.S.)
| | - Maja Strauss
- Faculty of Health Sciences, University of Maribor, Žitna ulica 15, 2000 Maribor, Slovenia; (K.Č.T.); (S.K.); (M.S.)
| | - Hannah G. Dahlen
- School of Nursing and Midwifery, University of Western Sydney, Parramatta, NSW 2751, Australia; (H.G.D.); (J.P.F.)
| | - Jann P. Foster
- School of Nursing and Midwifery, University of Western Sydney, Parramatta, NSW 2751, Australia; (H.G.D.); (J.P.F.)
- Ingham Research Institute, Liverpool, NSW 2170, Australia
- NSW Centre for Evidence Based Health Care: A JBI Affiliated Group, Parramatta, NSW 2751, Australia
| | - Sabina Fijan
- Faculty of Health Sciences, University of Maribor, Žitna ulica 15, 2000 Maribor, Slovenia; (K.Č.T.); (S.K.); (M.S.)
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20
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Martel J, Chang SH, Ko YF, Hwang TL, Young JD, Ojcius DM. Gut barrier disruption and chronic disease. Trends Endocrinol Metab 2022; 33:247-265. [PMID: 35151560 DOI: 10.1016/j.tem.2022.01.002] [Citation(s) in RCA: 177] [Impact Index Per Article: 88.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 01/03/2022] [Accepted: 01/10/2022] [Indexed: 02/06/2023]
Abstract
The intestinal barrier protects the host against gut microbes, food antigens, and toxins present in the gastrointestinal tract. However, gut barrier integrity can be affected by intrinsic and extrinsic factors, including genetic predisposition, the Western diet, antibiotics, alcohol, circadian rhythm disruption, psychological stress, and aging. Chronic disruption of the gut barrier can lead to translocation of microbial components into the body, producing systemic, low-grade inflammation. While the association between gut barrier integrity and inflammation in intestinal diseases is well established, we review here recent studies indicating that the gut barrier and microbiota dysbiosis may contribute to the development of metabolic, autoimmune, and aging-related disorders. Emerging interventions to improve gut barrier integrity and microbiota composition are also described.
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Affiliation(s)
- Jan Martel
- Center for Molecular and Clinical Immunology, Chang Gung University, Taoyuan, Taiwan; Chang Gung Immunology Consortium, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - Shih-Hsin Chang
- Center for Molecular and Clinical Immunology, Chang Gung University, Taoyuan, Taiwan
| | - Yun-Fei Ko
- Chang Gung Immunology Consortium, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan; Chang Gung Biotechnology Corporation, Taipei, Taiwan; Biochemical Engineering Research Center, Ming Chi University of Technology, New Taipei City, Taiwan
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan, Taiwan; Research Center for Chinese Herbal Medicine, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, Taiwan; Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, Taiwan; Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - John D Young
- Chang Gung Biotechnology Corporation, Taipei, Taiwan.
| | - David M Ojcius
- Center for Molecular and Clinical Immunology, Chang Gung University, Taoyuan, Taiwan; Chang Gung Immunology Consortium, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan; Department of Biomedical Sciences, Arthur Dugoni School of Dentistry, University of the Pacific, San Francisco, CA, USA.
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21
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Application of Enterococcus malodoratus SJC25 for the Manufacture of Whey-Based Beverage Naturally Enriched with GABA. Foods 2022; 11:foods11030447. [PMID: 35159597 PMCID: PMC8834577 DOI: 10.3390/foods11030447] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/17/2022] [Accepted: 01/29/2022] [Indexed: 02/01/2023] Open
Abstract
Gamma-aminobutyric acid (GABA) is used as a dietary supplement because of its health-promoting properties. However, concern over the use of synthetic products has increased the demand for foods that are naturally fortified with GABA. In addition, excess whey is a major concern for the dairy industry due to the high cost of treating it. Here, we report the use of a novel Enterococcus malodoratus strain isolated from cheese to produce sweet whey beverages naturally enriched with GABA. After the screening of cheese isolates, E. malodoratus strains were identified as high GABA producers. One beverage was prepared from pasteurized sweet whey enriched in glutamic acid and E. malodoratus SJC25. The fermented beverages were supplemented with a fruit preparation and subjected to chemical, microbiological and sensory analysis. The bacterial counts and GABA content were maintained until storage at 4 °C for 14 days. High conversion rates of glutamic acid to GABA (50–71%) were obtained in the beverages. The GABA content in whey-based beverages reached 250–300 mg/100 mL, which is equivalent to the content of commercially available GABA supplements. The beverages received a positive rating (4/5) by the taste panel. To our knowledge, this is the first report on E. malodoratus as a potential GABA producer.
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One Giant Leap from Mouse to Man: The Microbiota-Gut-Brain Axis in Mood Disorders and Translational Challenges Moving towards Human Clinical Trials. Nutrients 2022; 14:nu14030568. [PMID: 35276927 PMCID: PMC8840472 DOI: 10.3390/nu14030568] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 01/24/2022] [Accepted: 01/26/2022] [Indexed: 12/13/2022] Open
Abstract
The microbiota–gut–brain axis is a bidirectional communication pathway that enables the gut microbiota to communicate with the brain through direct and indirect signaling pathways to influence brain physiology, function, and even behavior. Research has shown that probiotics can improve several aspects of health by changing the environment within the gut, and several lines of evidence now indicate a beneficial effect of probiotics on mental and brain health. Such evidence has prompted the arrival of a new term to the world of biotics research: psychobiotics, defined as any exogenous influence whose effect on mental health is bacterially mediated. Several taxonomic changes in the gut microbiota have been reported in neurodevelopmental disorders, mood disorders such as anxiety and depression, and neurodegenerative disorders such as Alzheimer’s disease. While clinical evidence supporting the role of the gut microbiota in mental and brain health, and indeed demonstrating the beneficial effects of probiotics is rapidly accumulating, most of the evidence to date has emerged from preclinical studies employing different animal models. The purpose of this review is to focus on the role of probiotics and the microbiota–gut–brain axis in relation to mood disorders and to review the current translational challenges from preclinical to clinical research.
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Lee S, You H, Lee Y, Baik H, Paik J, Lee H, Park S, Shim J, Lee J, Hyun S. Intake of MPRO3 over 4 Weeks Reduces Glucose Levels and Improves Gastrointestinal Health and Metabolism. Microorganisms 2021; 10:microorganisms10010088. [PMID: 35056536 PMCID: PMC8780283 DOI: 10.3390/microorganisms10010088] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 12/24/2021] [Accepted: 12/30/2021] [Indexed: 01/01/2023] Open
Abstract
Human gut microbiota are involved in different metabolic processes, such as digestion and nutrient synthesis, among others. For the elderly, supplements are a major means of maintaining health and improving intestinal homeostasis. In this study, 51 elderly women were administered MPRO3 (n = 17), a placebo (n = 16), or both (MPRO3: 1 week, placebo: 3 weeks; n = 18) for 4 weeks. The fecal microbiota were analyzed by sequencing the 16S rRNA gene V3–V4 super-variable region. The dietary fiber intake increased, and glucose levels decreased with 4-week MPRO3 intake. Reflux, indigestion, and diarrhea syndromes gradually improved with MPRO3 intake, whereas constipation was maintained. The stool shape also improved. Bifidobacterium animalis, B. pseudolongum, Lactobacillus plantarum, and L. paracasei were relatively more abundant after 4 weeks of MPRO3 intake than in those subjects after a 1-week intake. Bifidobacterium and B. longum abundances increased after 1 week of MPRO3 intake but decreased when the intake was discontinued. Among different modules and pathways, all 10 modules analyzed showed a relatively high association with 4-week MPRO3 intake. The mineral absorption pathway and cortisol biosynthesis and secretion pathways correlated with the B. animalis and B. pseudolongum abundances at 4 weeks. Therefore, 4-week MPRO3 intake decreased the fasting blood glucose level and improved intestinal health and metabolism.
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Affiliation(s)
- Songhee Lee
- Department of Biomedical Laboratory Science, Graduate School, Eulji University, 712, Dongil-ro, Uijeongbu-si 11759, Korea; (S.L.); (Y.L.)
| | - Heesang You
- Department of Senior Healthcare, Graduate School, Eulji University, 712, Dongil-ro, Uijeongbu-si 11759, Korea;
| | - Yeongju Lee
- Department of Biomedical Laboratory Science, Graduate School, Eulji University, 712, Dongil-ro, Uijeongbu-si 11759, Korea; (S.L.); (Y.L.)
| | - Haingwoon Baik
- Department of Biochemistry and Molecular Biology, Graduate School, Eulji University School of Medicine, Daejeon 34824, Korea;
| | - Jeankyung Paik
- Department of Food and Nutrition, Graduate School, Eulji University, Seongnam 13135, Korea;
| | - Hayera Lee
- R&BD Center, hy Co., Ltd., 22, Giheungdanji-ro 24beon-gil, Giheung-gu, Yongin-si 17086, Korea; (H.L.); (S.P.); (J.S.); (J.L.)
| | - Soodong Park
- R&BD Center, hy Co., Ltd., 22, Giheungdanji-ro 24beon-gil, Giheung-gu, Yongin-si 17086, Korea; (H.L.); (S.P.); (J.S.); (J.L.)
| | - Jaejung Shim
- R&BD Center, hy Co., Ltd., 22, Giheungdanji-ro 24beon-gil, Giheung-gu, Yongin-si 17086, Korea; (H.L.); (S.P.); (J.S.); (J.L.)
| | - Junglyoul Lee
- R&BD Center, hy Co., Ltd., 22, Giheungdanji-ro 24beon-gil, Giheung-gu, Yongin-si 17086, Korea; (H.L.); (S.P.); (J.S.); (J.L.)
| | - Sunghee Hyun
- Department of Biomedical Laboratory Science, Graduate School, Eulji University, 712, Dongil-ro, Uijeongbu-si 11759, Korea; (S.L.); (Y.L.)
- Department of Senior Healthcare, Graduate School, Eulji University, 712, Dongil-ro, Uijeongbu-si 11759, Korea;
- Correspondence: ; Tel.: +82-10-9412-8853
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24
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The Emerging Scenario of the Gut-Brain Axis: The Therapeutic Actions of the New Actor Kefir against Neurodegenerative Diseases. Antioxidants (Basel) 2021; 10:antiox10111845. [PMID: 34829716 PMCID: PMC8614795 DOI: 10.3390/antiox10111845] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 11/14/2021] [Accepted: 11/17/2021] [Indexed: 12/18/2022] Open
Abstract
The fact that millions of people worldwide suffer from Alzheimer’s disease (AD) or Parkinson’s disease (PD), the two most prevalent neurodegenerative diseases (NDs), has been a permanent challenge to science. New tools were developed over the past two decades and were immediately incorporated into routines in many laboratories, but the most valuable scientific contribution was the “waking up” of the gut microbiota. Disturbances in the gut microbiota, such as an imbalance in the beneficial/pathogenic effects and a decrease in diversity, can result in the passage of undesired chemicals and cells to the systemic circulation. Recently, the potential effect of probiotics on restoring/preserving the microbiota was also evaluated regarding important metabolite and vitamin production, pathogen exclusion, immune system maturation, and intestinal mucosal barrier integrity. Therefore, the focus of the present review is to discuss the available data and conclude what has been accomplished over the past two decades. This perspective fosters program development of the next steps that are necessary to obtain confirmation through clinical trials on the magnitude of the effects of kefir in large samples.
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25
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Mirashrafi S, Hejazi Taghanaki SZ, Sarlak F, Moravejolahkami AR, Hojjati Kermani MA, Haratian M. Effect of probiotics supplementation on disease progression, depression, general health, and anthropometric measurements in relapsing-remitting multiple sclerosis patients: A systematic review and meta-analysis of clinical trials. Int J Clin Pract 2021; 75:e14724. [PMID: 34379879 DOI: 10.1111/ijcp.14724] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 08/09/2021] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Probiotics may have a promising role in chronic autoinflammatory diseases. The current systematic review and meta-analysis investigated the effects of probiotics on disease progression, depression, general health, and anthropometric measurements in Relapsing-Remitting Multiple Sclerosis (RRMS) patients. METHODS The English literature search was performed using PubMed, Scopus, Web of Science, and the Central Cochrane Library through January 2021. Random effect models were used to synthesise quantitative data by STATA14 . RESULTS From a total of 152 identified entries, four trials were included in quantitative synthesis (n = 213; 106 as intervention, 107 as control). An additional six studies with the same structure and different markers were also systematically reviewed. The pooled effect size showed that Expanded Disability Status Scale (EDSS) (WMD = -0.43; 95% CI = -0.65, -0.20; P < .001), Beck Depression Inventory-Ⅱ (BDI-Ⅱ) (WMD = -3.22; 95% CI = -4.38, -2.06; P < .001) and General Health Questionnaire (GHQ) (WMD = -4.37; 95% CI = -6.43, -2.31; P < .001) were improved following probiotics supplementation. However, body weight and body mass index did not statistically change. CONCLUSION Our findings revealed that probiotics supplementation can improve disease progression, suppress depression, and general health in MS patients; although, further investigations may be needed.
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Affiliation(s)
- Shahrzad Mirashrafi
- Department of Clinical Nutrition, School of Nutrition & Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Seyedeh Zahra Hejazi Taghanaki
- Department of Clinical Nutrition, School of Nutrition & Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Faezeh Sarlak
- Department of Clinical Nutrition, School of Nutrition & Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Amir Reza Moravejolahkami
- Department of Clinical Nutrition, School of Nutrition & Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Ali Hojjati Kermani
- Clinical Tuberculosis and Epidemiology Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohsen Haratian
- Department of Nutrition, Vice Chancellor of Health, Hamadan University of medical Sciences, Hamedan, Iran
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26
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Chen J, Hall S, Vitetta L. Altered gut microbial metabolites could mediate the effects of risk factors in Covid-19. Rev Med Virol 2021; 31:1-13. [PMID: 34546607 PMCID: PMC7995004 DOI: 10.1002/rmv.2211] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 12/08/2020] [Accepted: 12/09/2020] [Indexed: 01/08/2023]
Abstract
Coronavirus disease 2019 (Covid-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, is now pandemic. While most Covid-19 patients will experience mild symptoms, a small proportion will develop severe disease, which could be fatal. Clinically, Covid-19 patients manifest fever with dry cough, fatigue and dyspnoea, and in severe cases develop into acute respiratory distress syndrome (ARDS), sepsis and multi-organ failure. These severe patients are characterized by hyperinflammation with highly increased pro-inflammatory cytokines including IL-6, IL-17 and TNF-alpha as well as C-reactive protein, which are accompanied by decreased lymphocyte counts. Clinical evidence supports that gut microbiota dysregulation is common in Covid-19 and plays a key role in the pathogenesis of Covid-19. In this narrative review, we summarize the roles of intestinal dysbiosis in Covid-19 pathogenesis and posit that the associated mechanisms are being mediated by gut bacterial metabolites. Based on this premise, we propose possible clinical implications. Various risk factors could be causal for severe Covid-19, and these include advanced age, concomitant chronic disease, SARS-CoV-2 infection of enterocytes, use of antibiotics and psychological distress. Gut dysbiosis is associated with risk factors and severe Covid-19 due to decreased commensal microbial metabolites, which cause reduced anti-inflammatory mechanisms and chronic low-grade inflammation. The preconditioned immune dysregulation enables SARS-CoV-2 infection to progress to an uncontrolled hyperinflammatory response. Thus, a pre-existing gut microbiota that is diverse and abundant could be beneficial for the prevention of severe Covid-19, and supplementation with commensal microbial metabolites may facilitate and augment the treatment of severe Covid-19.
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Affiliation(s)
| | - Sean Hall
- Research DepartmentMedlab ClinicalSydneyAustralia
| | - Luis Vitetta
- Research DepartmentMedlab ClinicalSydneyAustralia
- Faculty of Medicine and HealthThe University of SydneySydneyAustralia
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27
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Nutrition, Exercise, and Stress Management for Treatment and Prevention of Psychiatric Disorders. A Narrative Review Psychoneuroendocrineimmunology-Based. ENDOCRINES 2021. [DOI: 10.3390/endocrines2030022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Psychoneuroendocrineimmunology (PNEI) brings together knowledge acquired since the 1930s from endocrinology, immunology, neuroscience, and psychology. With PNEI, a model of research and interpretation of health and disease is emerging, which sees the human body as a structured and interconnected unit, where the psychological and biological systems are mutually coordinated. In the PNEI view, many factors could influence mental health, with the endocrine system involved in mediating the effects of environmental stress on mental health and inflammation in the onset and course of psychiatric disorders as a result of individual and collective conditions and behaviors. Among these, nutrition is one way by which the environment impacts physiology: indeed, many pieces of research showed that several elements (e.g., probiotics, fish oil, zinc) have a positive effect on mental disorders thus being potentially augmentation agents in treatment. Still, physical activity can moderate depressive symptoms, while prolonged stress increases the risk of psychopathology. Taken together, the PNEI-based approach may inform prevention and treatment strategies, also in the field of mental health care.
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28
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Brett BE, Koko BK, Doumbia HOY, Koffi FK, Assa SE, Zahé KYAS, Faye-Ketté H, Kati-Coulibaly S, Kort R, Sybesma W, Reid G, de Weerth C. Salivary biomarkers of stress and inflammation in first graders in Côte d'Ivoire: Effects of a probiotic food intervention. Psychoneuroendocrinology 2021; 129:105255. [PMID: 34020263 DOI: 10.1016/j.psyneuen.2021.105255] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 04/26/2021] [Accepted: 05/02/2021] [Indexed: 12/16/2022]
Abstract
This semi-randomized controlled trial examined the effects of a probiotic food supplement on cortisol and C-reactive protein (CRP) in a sample of 262 four-to seven-year-old children (56% girls) in two economically-disadvantaged schools in an urban setting in Côte d'Ivoire. For one semester, children in one school were randomized to receive a probiotic (N = 79) or placebo (N = 85) fermented dairy food each day they attended school; one child (due to medical reasons) and all children in the other school (N = 98) continued their diets as usual. Children provided two saliva samples at 11:30 on consecutive days at the end of the study. Analyses revealed that the probiotic group had lower cortisol than the placebo or diet-as-usual groups (p = .015); CRP levels were comparable across groups (p = .549). Exploratory analyses suggested that dose and regularity of consumption may impact the biomarkers as well. This study provides the first evidence that a probiotic milk product may lower cortisol in a sample of young, economically-disadvantaged children.
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Affiliation(s)
- Bonnie E Brett
- Donders Institute for Brain, Cognition and Behaviour, Department of Cognitive Neuroscience, Radboud University Medical Center, P.O. Box 9010, 6500 GL Nijmegen, The Netherlands.
| | - Bruno K Koko
- UFR Biosciences, Université Félix Houghouët-Boigny, 01 BP V34 Abidjan, Côte d'Ivoire.
| | - Habib O Y Doumbia
- UFR Biosciences, Université Félix Houghouët-Boigny, 01 BP V34 Abidjan, Côte d'Ivoire.
| | | | - Savorgnan E Assa
- UFR Biosciences, Université Félix Houghouët-Boigny, 01 BP V34 Abidjan, Côte d'Ivoire.
| | - Kollet Y A S Zahé
- UFR Biosciences, Université Félix Houghouët-Boigny, 01 BP V34 Abidjan, Côte d'Ivoire.
| | - Hortense Faye-Ketté
- UFR Biosciences, Université Félix Houghouët-Boigny, 01 BP V34 Abidjan, Côte d'Ivoire; Institut Pasteur de Côte d'Ivoire, Abidjan, Cocody, CHU, Côte d'Ivoire.
| | - Séraphin Kati-Coulibaly
- UFR Biosciences, Université Félix Houghouët-Boigny, 01 BP V34 Abidjan, Côte d'Ivoire; Institut Pasteur de Côte d'Ivoire, Abidjan, Cocody, CHU, Côte d'Ivoire.
| | - Remco Kort
- Yoba For Life Foundation, Hunzestraat 133-A, 1079 WB Amsterdam, The Netherlands; Department of Molecular Cell Biology, Vrije Universiteit Amsterdam, De Boelelaan 1105, 1081 HV Amsterdam, The Netherlands.
| | - Wilbert Sybesma
- Yoba For Life Foundation, Hunzestraat 133-A, 1079 WB Amsterdam, The Netherlands.
| | - Gregor Reid
- Lawson Health Research Institute and Western University, 268 Grosvenor St, London, ON N6A 4V2, Canada.
| | - Carolina de Weerth
- Donders Institute for Brain, Cognition and Behaviour, Department of Cognitive Neuroscience, Radboud University Medical Center, P.O. Box 9010, 6500 GL Nijmegen, The Netherlands.
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29
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Supplementation of Lactobacillus early in life alters attention bias to threat in piglets. Sci Rep 2021; 11:10130. [PMID: 33980959 PMCID: PMC8115133 DOI: 10.1038/s41598-021-89560-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 04/28/2021] [Indexed: 02/06/2023] Open
Abstract
Gut microbes play an important role in regulating brain processes and influence behaviour, cognition and emotional states in humans and rodents. Nevertheless, it is not known how ingestion of beneficial microbes modulates emotional states in piglets and whether it can improve welfare. Here we use an attention bias task to assess the effects of Lactobacillus reuteri ATCC-PTA-6475 and Lactobacillus plantarum L1-6 supplementation early in life on emotional states in 33 piglets compared to 31 placebo supplemented piglets. We hypothesized that Lactobacillus supplementation would reduce vigilance behaviour (head at shoulder height or higher) and attention (head oriented towards the threat) in response to an auditory threat. The results showed that the control group increased vigilance behaviour in response to the threat, but there was no increase in the probiotics group. Despite the increased vigilance, the control group paid less attention to the threat. One explanation may be that control piglets avoided looking in the direction of the threat just because they perceived it as more threatening, but further research is necessary to confirm this. In conclusion, Lactobacillus supplementation may be a suitable tool to reduce anxiety, promote a more appropriate response to a challenge and so improve welfare.
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30
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Chuang JY. Romantic Relationship Dissolution, Microbiota, and Fibers. Front Nutr 2021; 8:655038. [PMID: 33937308 PMCID: PMC8081983 DOI: 10.3389/fnut.2021.655038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 03/24/2021] [Indexed: 12/22/2022] Open
Abstract
Microbiota inhabit nearly every part of our body with the gut microbiota representing the greatest density and absolute abundance. The gut-microbiota-brain axis facilitates bidirectional communication between gut microbiota and the brain. For instance, romantic relationship not only brings joy, it is also associated with increased gut microbiota diversity and health benefits whereas reduced microbiota diversity is related to obesity, cardiac disease, type 2 diabetes, and inflammatory disorders. Research has shown that dietary fibers may increase microbiota diversity and exert antidepressant effect. Among a plethora of life stressors, romantic relationship dissolution is a relatively common and painful experience that people encounter from time to time. Depressed mood, social isolation and poor intake are all associated with romantic relationship dissolution. In this article, it is hypothesized that romantic relationship dissolution is accompanied by decreased gut microbiota diversity which could be corrected with the ingestion of dietary fibers with an additional antidepressant benefit.
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Affiliation(s)
- Jie-Yu Chuang
- Department of Psychiatry, Cardinal Tien Hospital, New Taipei City, Taiwan
- School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan
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31
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Zhang N, Zhang Y, Li M, Wang W, Liu Z, Xi C, Huang X, Liu J, Huang J, Tian D, Mu J, Liao X, Zhai S. Efficacy of probiotics on stress in healthy volunteers: A systematic review and meta-analysis based on randomized controlled trials. Brain Behav 2020; 10:e01699. [PMID: 32662591 PMCID: PMC7507034 DOI: 10.1002/brb3.1699] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 05/08/2020] [Accepted: 05/09/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Probiotics seems to play a beneficial role in stressed populations; thus, a systematic review and meta-analysis to assess the effects of probiotics on stress in healthy subjects were conducted. METHODS Randomized controlled trials on the effects of probiotics on stress in healthy subjects were retrieved from five databases. The effects of probiotics on subjective stress level, stress-related subthreshold anxiety/depression level, cortisol level, and adverse reactions were analyzed. Separate subgroup analyses were conducted on single-strain probiotics versus multi-strain probiotics, and short-term administration versus long-term administration. RESULTS Seven studies were included, involving a total of 1,146 subjects. All the studies were rated as low or moderate risk of bias. Our research found that probiotic administration can generally reduce the subjective stress level of healthy volunteers and may improve their stress-related subthreshold anxiety/depression level, but no significant effect was observed in the subgroup analysis. The effect of probiotics on cortisol level was not significant. Adverse reactions were reported in only one of seven studies, but left undescribed. CONCLUSION Current evidence suggests that probiotics can reduce subjective stress level in healthy volunteers and may alleviate stress-related subthreshold anxiety/depression level, without significant effect on cortisol level, and there is not enough support to draw conclusions about adverse effects; thus, more reliable evidence from clinical trials is needed.
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Affiliation(s)
- Ning Zhang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.,Center for Evidence Based Chinese Medicine, Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yanan Zhang
- School of Integrated Traditional Chinese and Western Medicine, Hebei University of Chinese Medicine, Hebei, China
| | - Menglin Li
- Department of Traditional Chinese Medicine, Beijing Hospital, Beijing, China
| | - Weiguang Wang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Zhenzhu Liu
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Chongcheng Xi
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Xunying Huang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Jintao Liu
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Junwei Huang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Dong Tian
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Jie Mu
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Xing Liao
- Center for Evidence Based Chinese Medicine, Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - Shuangqing Zhai
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
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