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Nature Aug 2023The human gut microbiota has gained interest as an environmental factor that may contribute to health or disease. The development of next-generation probiotics is a...
The human gut microbiota has gained interest as an environmental factor that may contribute to health or disease. The development of next-generation probiotics is a promising strategy to modulate the gut microbiota and improve human health; however, several key candidate next-generation probiotics are strictly anaerobic and may require synergy with other bacteria for optimal growth. Faecalibacterium prausnitzii is a highly prevalent and abundant human gut bacterium associated with human health, but it has not yet been developed into probiotic formulations. Here we describe the co-isolation of F. prausnitzii and Desulfovibrio piger, a sulfate-reducing bacterium, and their cross-feeding for growth and butyrate production. To produce a next-generation probiotic formulation, we adapted F. prausnitzii to tolerate oxygen exposure, and, in proof-of-concept studies, we demonstrate that the symbiotic product is tolerated by mice and humans (ClinicalTrials.gov identifier: NCT03728868 ) and is detected in the human gut in a subset of study participants. Our study describes a technology for the production of next-generation probiotics based on the adaptation of strictly anaerobic bacteria to tolerate oxygen exposures without a reduction in potential beneficial properties. Our technology may be used for the development of other strictly anaerobic strains as next-generation probiotics.
Topics: Animals; Humans; Mice; Butyrates; Gastrointestinal Microbiome; Oxygen; Probiotics; Aerobiosis; Faecalibacterium prausnitzii; Symbiosis; Biotechnology
PubMed: 37532933
DOI: 10.1038/s41586-023-06378-w -
Neuroscience and Biobehavioral Reviews Mar 2024The use of probiotics, prebiotics, synbiotics or fermented foods can modulate the gut-brain axis and constitute a potentially therapeutic intervention in psychiatric... (Review)
Review
The use of probiotics, prebiotics, synbiotics or fermented foods can modulate the gut-brain axis and constitute a potentially therapeutic intervention in psychiatric disorders. This systematic review aims to identify current evidence regarding these interventions in the treatment of patients with DSM/ICD psychiatric diagnoses. Forty-seven articles from 42 studies met the inclusion criteria. Risk of bias was assessed in all included studies. Major depression was the most studied disorder (n = 19 studies). Studies frequently focused on schizophrenia (n = 11) and bipolar disorder (n = 5) and there were limited studies in anorexia nervosa (n = 4), ADHD (n = 3), Tourette (n = 1), insomnia (n = 1), PTSD (n = 1) and generalized anxiety disorder (n = 1). Except in MDD, current evidence does not clarify the role of probiotics and prebiotics in the treatment of mental illness. Several studies point to an improvement in the immune and inflammatory profile (e.g. CRP, IL6), which may be a relevant mechanism of action of the therapeutic response identified in these studies. Future research should consider lifestyle and dietary habits of patients as possible confounders that may influence inter-individual treatment response.
Topics: Humans; Prebiotics; Synbiotics; Probiotics; Mental Disorders
PubMed: 38280441
DOI: 10.1016/j.neubiorev.2024.105561 -
Frontiers in Immunology 2023As the prevalence of allergy and autoimmune disease in industrialized societies continues to rise, improving our understanding of the mechanistic roles behind... (Review)
Review
As the prevalence of allergy and autoimmune disease in industrialized societies continues to rise, improving our understanding of the mechanistic roles behind microbiota-immune homeostasis has become critical for informing therapeutic interventions in cases of dysbiosis. Of particular importance, are alterations to intestinal microbiota occurring within the critical neonatal window, during which the immune system is highly vulnerable to environmental exposures. This review will highlight recent literature concerning mechanisms of early-life microbiota-immune homeostasis as well as discuss the potential for therapeutics in restoring dysbiosis in early life.
Topics: Infant, Newborn; Humans; Probiotics; Dysbiosis; Microbiota; Gastrointestinal Microbiome; Homeostasis
PubMed: 37936686
DOI: 10.3389/fimmu.2023.1266876 -
Molecular Pharmaceutics Jul 2023Microorganisms that make up the local microbiota (such as sp. and sp.) play a crucial role in the modulation of diseases and health states by taking place not only in... (Review)
Review
Microorganisms that make up the local microbiota (such as sp. and sp.) play a crucial role in the modulation of diseases and health states by taking place not only in the gut but also in many parts of our body. There is also interference between the gut and the lung via the gut-lung axis. The relationship between respiratory diseases and lung microbiota, which become more of an issue of particular importance in recent years, shows that probiotics play an essential role in maintaining the balance of microorganisms in the respiratory tract. However, studies on probiotics' prophylactic or therapeutic application in chronic lung diseases are limited. In this review, the literature between 1977 and 2022 was surveyed. General information about human microbiota was accessed in earlier sources, and especially in the past decade, research on lung microbiota has been reached. The relationship between lung microbiota and important respiratory diseases such as bronchopulmonary dysplasia, chronic obstructive pulmonary disease, pneumonia, cystic fibrosis, allergy-asthma, influenza, lung cancer, and COVID-19 infection, was scrutinized after mentioning human microbiota, the gut-lung axis, and respiratory tract microbiota. The mechanism of action of probiotics and the formulation approaches of probiotics in terms of pharmaceutical technology were reviewed. Finally, future perspectives on lung-targeted administration of probiotic bacteria with prophylactic or therapeutic potential, or both, were presented.
Topics: Infant, Newborn; Humans; COVID-19; Probiotics; Microbiota; Lung; Bacteria
PubMed: 37340968
DOI: 10.1021/acs.molpharmaceut.3c00323 -
JPMA. the Journal of the Pakistan... Feb 2024In this communication, we define and describe gut guardianship as the processes, behaviours and activities that may be followed or undertaken, so as to achieve and...
In this communication, we define and describe gut guardianship as the processes, behaviours and activities that may be followed or undertaken, so as to achieve and maintain a healthy gut, and gut microbiome. These include aspects such related to nutrition, lifestyle, rational drug use, and microbial modulation by using prebiotics and probiotics. Gut guardianship helps in optimizing various aspects of human health including metabolic health, mitogenic balance, micronutrient absorption, mood (gaity) maintenance, gut immunity, and general well-being.
Topics: Humans; Prebiotics; Probiotics; Gastrointestinal Microbiome; Nutritional Status; Health Status
PubMed: 38419247
DOI: 10.47391/JPMA.24-09 -
Journal of Translational Medicine Jul 2023This systematic review and meta-analysis study aimed to evaluate the effectiveness of probiotics supplementation on glycaemic control in patients with type 2 diabetes... (Meta-Analysis)
Meta-Analysis Review
The effects of probiotics supplementation on glycaemic control among adults with type 2 diabetes mellitus: a systematic review and meta-analysis of randomised clinical trials.
OBJECTIVE
This systematic review and meta-analysis study aimed to evaluate the effectiveness of probiotics supplementation on glycaemic control in patients with type 2 diabetes mellitus (T2DM) based on the data from the randomised clinical trials (RCTs).
METHODS
PubMed, Web of Sciences, Embase, and Cochrane Library were searched from the inception to October 2022, and RCTs about probiotics and T2DM were collected. The standardised mean difference (SMD) with 95% confidence interval (CI) was used to estimate the effects of probiotics supplementation on glycaemic control related parameters, e.g. fasting blood glucose (FBG), insulin, haemoglobin A1c (HbA1c), and homeostasis model of assessment of insulin resistance (HOMA-IR).
RESULTS
Thirty RCTs including 1,827 T2MD patients were identified. Compared with the placebo group, the probiotics supplementation group had a significant decrease in the parameters of glycaemic control, including FBG (SMD = - 0.331, 95% CI - 0.424 to - 0.238, P < 0.001), insulin (SMD = - 0.185, 95% CI - 0.313 to - 0.056, P = 0.005), HbA1c (SMD = - 0.421, 95% CI - 0.584 to - 0.258, P < 0.001), and HOMA-IR (SMD = - 0.224, 95% CI - 0.342 to - 0.105, P < 0.001). Further subgroup analyses showed that the effect was larger in the subgroups of Caucasians, high baseline body mass index (BMI ≥ 30.0 kg/m), Bifidobacterium and food-type probiotics (P < 0.050).
CONCLUSION
This study supported that probiotics supplementation had favourable effects on glycaemic control in T2DM patients. It may be a promising adjuvant therapy for patients with T2DM.
Topics: Adult; Humans; Glycated Hemoglobin; Blood Glucose; Glycemic Control; Diabetes Mellitus, Type 2; Probiotics; Insulin Resistance; Insulin; Randomized Controlled Trials as Topic
PubMed: 37415167
DOI: 10.1186/s12967-023-04306-0 -
Molecules (Basel, Switzerland) Sep 2023Over the past few decades, research on the benefits of beneficial microorganisms on skin health has expanded and attracted a lot of attention. Today, a wide range of... (Review)
Review
Over the past few decades, research on the benefits of beneficial microorganisms on skin health has expanded and attracted a lot of attention. Today, a wide range of probiotic products are becoming available. With their extensive component profiles and varied physiological effects, probiotics, as well as extracts of them, have a significant impact on cosmetics. However, the present boom in consumer interest in alternatives has broadened the probiotic industry's research and development frontiers. Considering the foregoing, it should come as no surprise that probiotics are highly valued for their proven anti-aging, skin whitening, anti-inflammatory, and photoprotective effects. This review aims to compile information on probiotics' properties, their extracts, and preparations used in cosmetics. It also further summarizes research and applications on probiotic fermentation to promote the use of probiotic fermentation products in cosmetics. Notably, this review also adds information on particular properties and mechanisms of action of probiotics, which fills a gap in the research and application of probiotics in skin treatment and care. Their antioxidant and anti-aging qualities have received particular consideration. This review provides a new basis for the broad application of probiotics in cosmetics.
Topics: Probiotics; Cosmetics; Antioxidants; Fermentation
PubMed: 37836607
DOI: 10.3390/molecules28196765 -
Current Opinion in Biotechnology Apr 2024Although probiotics have been used in food products and supplements for decades, there has been a considerable increase in their use more recently. Recent technological... (Review)
Review
Although probiotics have been used in food products and supplements for decades, there has been a considerable increase in their use more recently. Recent technological advances have thus led to major advances in knowledge of the gut microbiota, enabling a significant development of biotics. In this review, we discuss the uses of traditional probiotics but also the discovery of next-generation probiotics that could be used as live biotherapeutics. These novel preventive and therapeutic strategies hold promise for the treatment of numerous diseases such as inflammatory bowel diseases such as Crohn's disease and ulcerative colitis. Probiotic bacteria can be consumed alone, or in combination with prebiotics as synbiotics, or mixed with other probiotic strains to form a consortium for enhanced effects. We also discuss the benefits of using postbiotics.
Topics: Humans; Probiotics; Prebiotics; Inflammatory Bowel Diseases; Gastrointestinal Microbiome; Bacteria
PubMed: 38335705
DOI: 10.1016/j.copbio.2024.103073 -
Nutrients Aug 2023This Special Issue, titled "Probiotics and Prebiotics in Cardiovascular Diseases", encompasses two comprehensive review articles examining the potential of...
This Special Issue, titled "Probiotics and Prebiotics in Cardiovascular Diseases", encompasses two comprehensive review articles examining the potential of gut-microbiota-targeted reprogramming interventions designed to prevent the onset and progression of cardiovascular diseases [...].
Topics: Humans; Cardiovascular Diseases; Gastrointestinal Microbiome; Prebiotics; Probiotics
PubMed: 37686718
DOI: 10.3390/nu15173686 -
EBioMedicine Feb 2024Gut probiotic depletion is associated with non-alcoholic fatty liver disease-associated hepatocellular carcinoma (NAFLD-HCC). Here, we investigated the prophylactic...
BACKGROUND
Gut probiotic depletion is associated with non-alcoholic fatty liver disease-associated hepatocellular carcinoma (NAFLD-HCC). Here, we investigated the prophylactic potential of Lactobacillus acidophilus against NAFLD-HCC.
METHODS
NAFLD-HCC conventional and germ-free mice were established by diethylnitrosamine (DEN) injection with feeding of high-fat high-cholesterol (HFHC) or choline-deficient high-fat (CDHF) diet. Orthotopic NAFLD-HCC allografts were established by intrahepatic injection of murine HCC cells with HFHC feeding. Metabolomic profiling was performed using liquid chromatography-mass spectrometry. Biological functions of L. acidophilus conditional medium (L.a CM) and metabolites were determined in NAFLD-HCC human cells and mouse organoids.
FINDINGS
L. acidophilus supplementation suppressed NAFLD-HCC formation in HFHC-fed DEN-treated mice. This was confirmed in orthotopic allografts and germ-free tumourigenesis mice. L.a CM inhibited the growth of NAFLD-HCC human cells and mouse organoids. The protective function of L. acidophilus was attributed to its non-protein small molecules. By metabolomic profiling, valeric acid was the top enriched metabolite in L.a CM and its upregulation was verified in liver and portal vein of L. acidophilus-treated mice. The protective function of valeric acid was demonstrated in NAFLD-HCC human cells and mouse organoids. Valeric acid significantly suppressed NAFLD-HCC formation in HFHC-fed DEN-treated mice, accompanied by improved intestinal barrier integrity. This was confirmed in another NAFLD-HCC mouse model induced by CDHF diet and DEN. Mechanistically, valeric acid bound to hepatocytic surface receptor GPR41/43 to inhibit Rho-GTPase pathway, thereby ablating NAFLD-HCC.
INTERPRETATION
L. acidophilus exhibits anti-tumourigenic effect in mice by secreting valeric acid. Probiotic supplementation is a potential prophylactic of NAFLD-HCC.
FUNDING
Shown in Acknowledgments.
Topics: Humans; Animals; Mice; Carcinoma, Hepatocellular; Non-alcoholic Fatty Liver Disease; Lactobacillus acidophilus; Liver Neoplasms; Liver; Cell Transformation, Neoplastic; Carcinogenesis; Diet, High-Fat; Choline; Probiotics; Mice, Inbred C57BL; Pentanoic Acids
PubMed: 38176203
DOI: 10.1016/j.ebiom.2023.104952