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Ye Y, Li M, Chen W, Wang H, He X, Liu N, Guo Z, Zheng C. Natural polysaccharides as promising reno-protective agents for the treatment of various kidney injury. Pharmacol Res 2024; 207:107301. [PMID: 39009291 DOI: 10.1016/j.phrs.2024.107301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 06/13/2024] [Accepted: 07/07/2024] [Indexed: 07/17/2024]
Abstract
Renal injury, a prevalent clinical outcome with multifactorial etiology, imposes a substantial burden on society. Currently, there remains a lack of effective management and treatments. Extensive research has emphasized the diverse biological effects of natural polysaccharides, which exhibit promising potential for mitigating renal damage. This review commences with the pathogenesis of four common renal diseases and the shared mechanisms underlying renal injury. The renoprotective roles of polysaccharides in vivo and in vitro are summarized in the following five aspects: anti-oxidative stress effects, anti-apoptotic effects, anti-inflammatory effects, anti-fibrotic effects, and gut modulatory effects. Furthermore, we explore the structure-activity relationship and bioavailability of polysaccharides in relation to renal injury, as well as investigate their utility as biomaterials for alleviating renal injury. The clinical experiments of polysaccharides applied to patients with chronic kidney disease are also reviewed. Broadly, this review provides a comprehensive perspective on the research direction of natural polysaccharides in the context of renal injury, with the primary aim to serve as a reference for the clinical development of polysaccharides as pharmaceuticals and prebiotics for the treatment of kidney diseases.
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Affiliation(s)
- Yufei Ye
- Department of Chinese Medicine Authentication, Faculty of Pharmacy, Second Military Medical University/Naval Medical University, 325 Guohe Road, Shanghai 200433, China; Department of Nephrology, Changhai Hospital, Second Military Medical University/Naval Medical University, 168 Changhai Road, Shanghai 200433, China
| | - Maoting Li
- Department of Chinese Medicine Authentication, Faculty of Pharmacy, Second Military Medical University/Naval Medical University, 325 Guohe Road, Shanghai 200433, China; Department of Nephrology, Naval Medical Center of PLA, Second Military Medical University/Naval Medical University, 338 West Huaihai Road, Shanghai 200052, China
| | - Wei Chen
- Department of Nephrology, Changhai Hospital, Second Military Medical University/Naval Medical University, 168 Changhai Road, Shanghai 200433, China
| | - Hongrui Wang
- Department of Chinese Medicine Authentication, Faculty of Pharmacy, Second Military Medical University/Naval Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Xuhui He
- Department of Chinese Medicine Authentication, Faculty of Pharmacy, Second Military Medical University/Naval Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Nanmei Liu
- Department of Nephrology, Naval Medical Center of PLA, Second Military Medical University/Naval Medical University, 338 West Huaihai Road, Shanghai 200052, China.
| | - Zhiyong Guo
- Department of Nephrology, Changhai Hospital, Second Military Medical University/Naval Medical University, 168 Changhai Road, Shanghai 200433, China.
| | - Chengjian Zheng
- Department of Chinese Medicine Authentication, Faculty of Pharmacy, Second Military Medical University/Naval Medical University, 325 Guohe Road, Shanghai 200433, China.
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Li H, Wang N, Zhang D, Wu J, Tan S, Li Y, Zhang N, Yang L, Wang X. Comparative study on the structure characterization and activity of RS5 made from Canna edulis native starch and high-amylose corn starch. Int J Biol Macromol 2024; 271:132340. [PMID: 38816293 DOI: 10.1016/j.ijbiomac.2024.132340] [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: 01/09/2024] [Revised: 05/06/2024] [Accepted: 05/11/2024] [Indexed: 06/01/2024]
Abstract
In this study, the high amylose corn starch and Canna edulis native starch were compounded with lauric acid and fermented by human fecal inoculation in vitro. Changes in beneficial metabolite profile and microbiota composition were evaluated. The structural properties showed that both NS-12C and HAMS-12C formed V-shaped crystals under the same preparation method, but NS-12C had a higher composite index and resistance content than HAMS-12C. At the end of fermentation, the starch-lauric acid complexes prepared from the two types of starch significantly promoted the formation of short-chain fatty acids and the contents of acetic acid, butyric acid and valeric acid produced by NS-12C were higher than those of HAMS-12C(p>0.05). HAMS-12C and NS-12C both increased the relative abundance of Blautia. Notably, NS-12C also increased the relative abundance of beneficial bacteria Bifidobacterium and Meganomas, while HAMS-12C did not. These results suggested that this effect may be related to starch type and provide a basis for designing and producing functional foods to improve intestinal health in Canna edulis native starch.
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Affiliation(s)
- Houxier Li
- School of Chinese Meteria Medica, Beijing University of Chinese Medicine, Northeast Corner of the Intersection of Sunshine South Street and Baiyang East Road, Fang-Shan District, Beijing 102488, China
| | - Nan Wang
- School of Chinese Meteria Medica, Beijing University of Chinese Medicine, Northeast Corner of the Intersection of Sunshine South Street and Baiyang East Road, Fang-Shan District, Beijing 102488, China
| | - Dachuan Zhang
- School of Chinese Meteria Medica, Beijing University of Chinese Medicine, Northeast Corner of the Intersection of Sunshine South Street and Baiyang East Road, Fang-Shan District, Beijing 102488, China
| | - Jiahui Wu
- School of Chinese Meteria Medica, Beijing University of Chinese Medicine, Northeast Corner of the Intersection of Sunshine South Street and Baiyang East Road, Fang-Shan District, Beijing 102488, China
| | - Shuting Tan
- School of Chinese Meteria Medica, Beijing University of Chinese Medicine, Northeast Corner of the Intersection of Sunshine South Street and Baiyang East Road, Fang-Shan District, Beijing 102488, China
| | - Yan Li
- School of Chinese Meteria Medica, Beijing University of Chinese Medicine, Northeast Corner of the Intersection of Sunshine South Street and Baiyang East Road, Fang-Shan District, Beijing 102488, China
| | - Nan Zhang
- School of Chinese Meteria Medica, Beijing University of Chinese Medicine, Northeast Corner of the Intersection of Sunshine South Street and Baiyang East Road, Fang-Shan District, Beijing 102488, China
| | - Li Yang
- School of Chinese Meteria Medica, Beijing University of Chinese Medicine, Northeast Corner of the Intersection of Sunshine South Street and Baiyang East Road, Fang-Shan District, Beijing 102488, China
| | - Xueyong Wang
- School of Chinese Meteria Medica, Beijing University of Chinese Medicine, Northeast Corner of the Intersection of Sunshine South Street and Baiyang East Road, Fang-Shan District, Beijing 102488, China.
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Zhou Y, Zhang L, Li Q, Wang P, Wang H, Shi H, Lu W, Zhang Y. Prenatal PFAS exposure, gut microbiota dysbiosis, and neurobehavioral development in childhood. JOURNAL OF HAZARDOUS MATERIALS 2024; 469:133920. [PMID: 38457972 DOI: 10.1016/j.jhazmat.2024.133920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 01/17/2024] [Accepted: 02/27/2024] [Indexed: 03/10/2024]
Abstract
Studies on the role of the gut microbiota in the associations between per- and polyfluoroalkyl substance (PFAS) exposure and adverse neurodevelopment are limited. Umbilical cord serum and faeces samples were collected from children, and the Strengths and Difficulties Questionnaire (SDQ) was conducted. Generalized linear models, linear mixed-effects models, multivariate analysis by linear models and microbiome regression-based kernel association tests were used to evaluate the associations among PFAS exposure, the gut microbiota, and neurobehavioural development. Perfluorohexane sulfonic acid (PFHxS) exposure was associated with increased scores for conduct problems and externalizing problems, as well as altered gut microbiota alpha and beta diversity. PFHxS concentrations were associated with higher relative abundances of Enterococcus spp. but lower relative abundances of several short-chain fatty acid-producing genera (e.g., Ruminococcus gauvreauii group spp.). PFHxS exposure was also associated with increased oxidative phosphorylation. Alpha and beta diversity were found significantly associated with conduct problems and externalizing problems. Ruminococcus gauvreauii group spp. abundance was positively correlated with prosocial behavior scores. Increased alpha diversity played a mediating role in the associations of PFHxS exposure with conduct problems. Our results suggest that the gut microbiota might play an important role in PFAS neurotoxicity, which may have implications for PFAS control.
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Affiliation(s)
- Yuhan Zhou
- Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China, Fudan University, Shanghai 200032, China; School of Exercise and Health, Shanghai University of Sport, Shanghai 200438, China
| | - Liyi Zhang
- Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China, Fudan University, Shanghai 200032, China
| | - Qiang Li
- Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China, Fudan University, Shanghai 200032, China; Putuo District Center for Disease Control & Prevention, Shanghai 200333, China
| | - Pengpeng Wang
- Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China, Fudan University, Shanghai 200032, China
| | - Hang Wang
- Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China, Fudan University, Shanghai 200032, China
| | - Huijing Shi
- Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China, Fudan University, Shanghai 200032, China
| | - Wenwei Lu
- School of Science and Technology, Jiangnan University, Jiangsu 214122, China
| | - Yunhui Zhang
- Key Lab of Health Technology Assessment, National Health Commission of the People's Republic of China, Fudan University, Shanghai 200032, China.
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4
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Jin Y, Han C, Yang D, Gao S. Association between gut microbiota and diabetic nephropathy: a mendelian randomization study. Front Microbiol 2024; 15:1309871. [PMID: 38601939 PMCID: PMC11004376 DOI: 10.3389/fmicb.2024.1309871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 03/11/2024] [Indexed: 04/12/2024] Open
Abstract
Background The correlation between diabetic nephropathy (DN) and gut microbiota (GM) has been suggested in numerous animal experiments and cross-sectional studies. However, a causal association between GM and DN has not been ascertained. Methods This research adopted MR analysis to evaluate the causal link between GM and DN derived from data acquired through publicly available genome-wide association studies (GWAS). The study utilized the inverse variance weighted (IVW) approach to assess causal association between GM and DN. Four additional methods including MR-Egger, weighted median, weighted mode, and simple mode were employed to ensure comprehensive analysis and robust results. The Cochran's Q test and the MR-Egger method were conducted to identify heterogeneity and horizontal pleiotropy, respectively. The leave-one-out approach was utilized to evaluate the stability of MR results. Finally, a reverse MR was performed to identify the reverse causal association between GM and DN. Results According to IVW analysis, Class Verrucomicrobiae (p = 0.003), Order Verrucomicrobiales (p = 0.003), Family Verrucomicrobiaceae (p = 0.003), Genus Akkermansia (p = 0.003), Genus Catenibacterium (p = 0.031), Genus Coprococcus 1 (p = 0.022), Genus Eubacterium hallii group (p = 0.018), and Genus Marvinbryantia (p = 0.023) were associated with a higher risk of DN. On the contrary, Class Actinobacteria (p = 0.037), Group Eubacterium ventriosum group (p = 0.030), Group Ruminococcus gauvreauii group (p = 0.048), Order Lactobacillales (p = 0.045), Phylum Proteobacteria (p = 0.017) were associated with a lower risk of DN. The sensitivity analysis did not identify any substantial pleiotropy or heterogeneity in the outcomes. We found causal effects of DN on 11 GM species in the reverse MR analysis. Notably, Phylum Proteobacteria and DN are mutually causalities. Conclusion This study identified the causal association between GM and DN with MR analysis, which may enhance the understanding of the intestinal-renal axis and provide novel potential targets for early non-invasive diagnosis and treatment of DN.
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Affiliation(s)
- Yongxiu Jin
- Department of Nephrology, Tangshan Gongren Hosiptal, Tangshan, China
- Graduate School, Hebei Medical University, Shijiazhuang, China
| | - Chenxi Han
- Tangshan Maternal and Child Health Hospital, Tangshan, China
| | | | - Shanlin Gao
- Department of Nephrology, Tangshan Gongren Hosiptal, Tangshan, China
- Graduate School, Hebei Medical University, Shijiazhuang, China
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Avesani CM, Cardozo LFMF, Yee-Moon Wang A, Shiels PG, Lambert K, Lindholm B, Stenvinkel P, Mafra D. Planetary Health, Nutrition, and Chronic Kidney Disease: Connecting the Dots for a Sustainable Future. J Ren Nutr 2023; 33:S40-S48. [PMID: 36182058 DOI: 10.1053/j.jrn.2022.09.003] [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: 07/11/2022] [Revised: 08/18/2022] [Accepted: 09/11/2022] [Indexed: 11/11/2022] Open
Abstract
The increasing consumption of ultra-processed food (UPF) and the global chain of food production have a negative impact on human health and planetary health. These foods have been replacing the consumption of nonprocessed healthy foods. This shift has not only worsened human health by increasing the risk of the development of noncommunicable diseases, but also resulted in environmental perturbations. This review aims to bring awareness of the problems caused by the industrialized food production chain, addressing the negative effects it has on the environment and human health, with special reference to chronic kidney disease (CKD). We discuss possible solutions focusing on the benefits of adopting plant-based diets with low UPF content to promote a sustainable and healthy food production and diet for patients with CKD. For a sustainable future we need to "connect the dots" of planetary health, food production, and nutrition in the context of CKD.
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Affiliation(s)
- Carla Maria Avesani
- Division of Renal Medicine and Baxter Novum, Department of Clinical Science, Technology and Intervention, Karolinska Instituted, Stockholm, Sweden.
| | - Ludmila F M F Cardozo
- Graduate Program in Cardiovascular Sciences, Fluminense Federal University (UFF), Niterói, Rio de Janeiro, Brazil
| | - Angela Yee-Moon Wang
- Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Paul G Shiels
- Wolfson Wohl Translational Research Centre, University of Glasgow, Scotland
| | - Kelly Lambert
- Discipline of Nutrition and Dietetics, School of Medicine, Indigenous and Health Sciences, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, New South Wales, Australia
| | - Bengt Lindholm
- Division of Renal Medicine and Baxter Novum, Department of Clinical Science, Technology and Intervention, Karolinska Instituted, Stockholm, Sweden
| | - Peter Stenvinkel
- Division of Renal Medicine and Baxter Novum, Department of Clinical Science, Technology and Intervention, Karolinska Instituted, Stockholm, Sweden
| | - Denise Mafra
- Graduate Program in Biological Sciences - Physiology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Rio de Janeiro, Brazil
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Borges NA, Sahiun E, Ribeiro-Alves M, Regis B, Mafra D. Effects of Polydextrose Supplementation on Intestinal Function in Hemodialysis Patients: A Double-Blind, Randomized, Placebo-Controlled Trial. J Ren Nutr 2023; 33:747-754. [PMID: 37321430 DOI: 10.1053/j.jrn.2023.06.008] [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: 03/16/2023] [Revised: 06/05/2023] [Accepted: 06/06/2023] [Indexed: 06/17/2023] Open
Abstract
OBJECTIVES Intestinal constipation is a frequent complication in hemodialysis (HD) patients. Polydextrose (PDX), a nondigestible oligosaccharide, has been reported as a fermentable fiber with potential benefits. This study aimed to investigate the possible influence of PDX supplementation on intestinal function in HD patients. METHODS This randomized, double-blind, placebo-controlled trial included 28 patients who received daily oral supplementation with 12 g of PDX or placebo (corn starch) for 2 months. ROME IV criteria were used to define constipation and questionnaires were applied to patient assessment of constipation symptoms (PAC-SYM) and their impact on the patient assessment of constipation quality of life. The Bristol scale was used to assess stool consistency. Commercial Enzyme-Linked Immuno Sorbent Assay kits were used to evaluate the interleukin-6 and tumor necrosis factor-α plasma levels. RESULTS 25 patients completed the study; 16 in the PDX group [7 females, 48.5 years (IQR = 15.5)] and 9 in the control group [3 females, 44.0 years (IQR = 6.0)]. According to ROME IV criteria, 55% of patients were diagnosed with constipation. PAC-SYM faecal symptoms domain was reduced after 2 months of PDX supplementation (P = .004). We also observed a significant reduction in the PAC-QoL-concerns domain (P = .02). The average values for PAC-SYM and patient assessment of constipation quality of lifewere reduced significantly after intervention with PDX. There were no significant changes after the intervention period concerning biochemical variables, food intake, and inflammation markers. No adverse effects were observed during the supplementation period. CONCLUSIONS The results of the present study suggest that short-term PDX supplementation may have favourable results on intestinal function and the quality of life of chronic kidney disease patients in HD.
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Affiliation(s)
- Natalia Alvarenga Borges
- Postgraduate Program in Food, Nutrition and Health - Institute of Nutrition, State University of Rio de Janeiro (UERJ), Rio de Janeiro, Brazil
| | - Elaine Sahiun
- Postgraduate Program in Food, Nutrition and Health - Institute of Nutrition, State University of Rio de Janeiro (UERJ), Rio de Janeiro, Brazil
| | - Marcelo Ribeiro-Alves
- HIV/AIDS Clinical Research Center, National Institute of Infectious Diseases Evandro Chagas (INI/Fiocruz), Rio de Janeiro, Brazil
| | - Bruna Regis
- Postgraduate Program in Cardiovascular Sciences, Fluminense Federal University (UFF), Rio de Janeiro, Brazil
| | - Denise Mafra
- Graduate Program in Biological Sciences - Physiology, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro (RJ), Brazil.
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Craven H, Erlandsson H, McGuinness D, McGuinness D, Mafra D, Ijaz U, Bergman P, Shiels P, Stenvinkel P. A normative microbiome is not restored following kidney transplantation. Clin Sci (Lond) 2023; 137:1563-1575. [PMID: 37756543 PMCID: PMC10582644 DOI: 10.1042/cs20230779] [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: 07/18/2023] [Revised: 09/22/2023] [Accepted: 09/26/2023] [Indexed: 09/29/2023]
Abstract
Dialysis and kidney transplantation (Ktx) mitigate some of the physiological deficits in chronic kidney disease (CKD), but it remains to be determined if these mitigate microbial dysbiosis and the production of inflammatory microbial metabolites, which contribute significantly to the uraemic phenotype. We have investigated bacterial DNA signatures present in the circulation of CKD patients and those receiving a KTx. Our data are consistent with increasing dysbiosis as CKD progresses, with an accompanying increase in trimethylamine (TMA) producing pathobionts Pseudomonas and Bacillus. Notably, KTx patients displayed a significantly different microbiota compared with CKD5 patients, which surprisingly included further increase in TMA producing Bacillus and loss of salutogenic Lactobacilli. Only two genera (Viellonella and Saccharimonidales) showed significant differences in abundance following KTx that may reflect a reciprocal relationship between TMA producers and utilisers, which supersedes restoration of a normative microbiome. Our metadata analysis confirmed that TMA N-oxide (TMAO) along with one carbon metabolism had significant impact upon both inflammatory burden and the composition of the microbiome. This indicates that these metabolites are key to shaping the uraemic microbiome and might be exploited in the development of dietary intervention strategies to both mitigate the physiological deficits in CKD and enable the restoration of a more salutogenic microbiome.
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Affiliation(s)
- Hannah Craven
- University of Glasgow, College of Medical, Veterinary and Life Sciences, School of Molecular Biosciences, Davidson Bld, Glasgow, U.K
| | - Helen Erlandsson
- Department of Clinical Science, Intervention and Technology, Division of Renal Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Dagmara McGuinness
- University of Glasgow, College of Medical, Veterinary and Life Sciences, School of Molecular Biosciences, Davidson Bld, Glasgow, U.K
| | | | - Denise Mafra
- Fluminense Federal University (UFF), Niterói, RJ, Brazil
| | | | - Peter Bergman
- Department of Laboratory Medicine, Division of Clinical Immunology, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical immunology and Transfusion Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Paul G. Shiels
- University of Glasgow, College of Medical, Veterinary and Life Sciences, School of Molecular Biosciences, Davidson Bld, Glasgow, U.K
| | - Peter Stenvinkel
- Department of Clinical Science, Intervention and Technology, Division of Renal Medicine, Karolinska Institutet, Stockholm, Sweden
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Cooper TE, Khalid R, Chan S, Craig JC, Hawley CM, Howell M, Johnson DW, Jaure A, Teixeira-Pinto A, Wong G. Synbiotics, prebiotics and probiotics for people with chronic kidney disease. Cochrane Database Syst Rev 2023; 10:CD013631. [PMID: 37870148 PMCID: PMC10591284 DOI: 10.1002/14651858.cd013631.pub2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2023]
Abstract
BACKGROUND Chronic kidney disease (CKD) is a major public health problem affecting 13% of the global population. Prior research has indicated that CKD is associated with gut dysbiosis. Gut dysbiosis may lead to the development and/or progression of CKD, which in turn may in turn lead to gut dysbiosis as a result of uraemic toxins, intestinal wall oedema, metabolic acidosis, prolonged intestinal transit times, polypharmacy (frequent antibiotic exposures) and dietary restrictions used to treat CKD. Interventions such as synbiotics, prebiotics, and probiotics may improve the balance of the gut flora by altering intestinal pH, improving gut microbiota balance and enhancing gut barrier function (i.e. reducing gut permeability). OBJECTIVES This review aimed to evaluate the benefits and harms of synbiotics, prebiotics, and probiotics for people with CKD. SEARCH METHODS We searched the Cochrane Kidney and Transplant Register of Studies up to 9 October 2023 through contact with the Information Specialist using search terms relevant to this review. Studies in the Register are identified through searches of CENTRAL, MEDLINE, and EMBASE, conference proceedings, the International Clinical Trials Registry Platform (ICTRP) Search Portal and ClinicalTrials.gov. SELECTION CRITERIA We included randomised controlled trials (RCTs) measuring and reporting the effects of synbiotics, prebiotics, or probiotics in any combination and any formulation given to people with CKD (CKD stages 1 to 5, including dialysis and kidney transplant). Two authors independently assessed the retrieved titles and abstracts and, where necessary, the full text to determine which satisfied the inclusion criteria. DATA COLLECTION AND ANALYSIS Data extraction was independently carried out by two authors using a standard data extraction form. Summary estimates of effect were obtained using a random-effects model, and results were expressed as risk ratios (RR) and their 95% confidence intervals (CI) for dichotomous outcomes, and mean difference (MD) or standardised mean difference (SMD) and 95% CI for continuous outcomes. The methodological quality of the included studies was assessed using the Cochrane risk of bias tool. Data entry was carried out by one author and cross-checked by another. Confidence in the evidence was assessed using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach. MAIN RESULTS Forty-five studies (2266 randomised participants) were included in this review. Study participants were adults (two studies in children) with CKD ranging from stages 1 to 5, with patients receiving and not receiving dialysis, of whom half also had diabetes and hypertension. No studies investigated the same synbiotic, prebiotic or probiotic of similar strains, doses, or frequencies. Most studies were judged to be low risk for selection bias, performance bias and reporting bias, unclear risk for detection bias and for control of confounding factors, and high risk for attrition and other biases. Compared to prebiotics, it is uncertain whether synbiotics improve estimated glomerular filtration rate (eGFR) at four weeks (1 study, 34 participants: MD -3.80 mL/min/1.73 m², 95% CI -17.98 to 10.38), indoxyl sulfate at four weeks (1 study, 42 participants: MD 128.30 ng/mL, 95% CI -242.77 to 499.37), change in gastrointestinal (GI) upset (borborymgi) at four weeks (1 study, 34 participants: RR 15.26, 95% CI 0.99 to 236.23), or change in GI upset (Gastrointestinal Symptom Rating Scale) at 12 months (1 study, 56 participants: MD 0.00, 95% CI -0.27 to 0.27), because the certainty of the evidence was very low. Compared to certain strains of prebiotics, it is uncertain whether a different strain of prebiotics improves eGFR at 12 weeks (1 study, 50 participants: MD 0.00 mL/min, 95% CI -1.73 to 1.73), indoxyl sulfate at six weeks (2 studies, 64 participants: MD -0.20 μg/mL, 95% CI -1.01 to 0.61; I² = 0%) or change in any GI upset, intolerance or microbiota composition, because the certainty of the evidence was very low. Compared to certain strains of probiotics, it is uncertain whether a different strain of probiotic improves eGFR at eight weeks (1 study, 30 participants: MD -0.64 mL/min, 95% CI -9.51 to 8.23; very low certainty evidence). Compared to placebo or no treatment, it is uncertain whether synbiotics improve eGFR at six or 12 weeks (2 studies, 98 participants: MD 1.42 mL/min, 95% CI 0.65 to 2.2) or change in any GI upset or intolerance at 12 weeks because the certainty of the evidence was very low. Compared to placebo or no treatment, it is uncertain whether prebiotics improves indoxyl sulfate at eight weeks (2 studies, 75 participants: SMD -0.14 mg/L, 95% CI -0.60 to 0.31; very low certainty evidence) or microbiota composition because the certainty of the evidence is very low. Compared to placebo or no treatment, it is uncertain whether probiotics improve eGFR at eight, 12 or 15 weeks (3 studies, 128 participants: MD 2.73 mL/min, 95% CI -2.28 to 7.75; I² = 78%), proteinuria at 12 or 24 weeks (1 study, 60 participants: MD -15.60 mg/dL, 95% CI -34.30 to 3.10), indoxyl sulfate at 12 or 24 weeks (2 studies, 83 participants: MD -4.42 mg/dL, 95% CI -9.83 to 1.35; I² = 0%), or any change in GI upset or intolerance because the certainty of the evidence was very low. Probiotics may have little or no effect on albuminuria at 12 or 24 weeks compared to placebo or no treatment (4 studies, 193 participants: MD 0.02 g/dL, 95% CI -0.08 to 0.13; I² = 0%; low certainty evidence). For all comparisons, adverse events were poorly reported and were minimal (flatulence, nausea, diarrhoea, abdominal pain) and non-serious, and withdrawals were not related to the study treatment. AUTHORS' CONCLUSIONS We found very few studies that adequately test biotic supplementation as alternative treatments for improving kidney function, GI symptoms, dialysis outcomes, allograft function, patient-reported outcomes, CVD, cancer, reducing uraemic toxins, and adverse effects. We are not certain whether synbiotics, prebiotics, or probiotics are more or less effective compared to one another, antibiotics, or standard care for improving patient outcomes in people with CKD. Adverse events were uncommon and mild.
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Affiliation(s)
- Tess E Cooper
- Sydney School of Public Health, The University of Sydney, Sydney, Australia
| | - Rabia Khalid
- Sydney School of Public Health, The University of Sydney, Sydney, Australia
- Centre for Kidney Research, The Children's Hospital at Westmead, Westmead, Australia
| | - Samuel Chan
- Department of Nephrology, Princess Alexandra Hospital, Brisbane, Australia
| | - Jonathan C Craig
- Cochrane Kidney and Transplant, Centre for Kidney Research, The Children's Hospital at Westmead, Westmead, Australia
- College of Medicine and Public Health, Flinders University, Adelaide, Australia
| | - Carmel M Hawley
- Department of Nephrology, Princess Alexandra Hospital, Brisbane, Australia
| | - Martin Howell
- Sydney School of Public Health, The University of Sydney, Sydney, Australia
- Centre for Kidney Research, The Children's Hospital at Westmead, Westmead, Australia
| | - David W Johnson
- Department of Nephrology, Princess Alexandra Hospital, Brisbane, Australia
| | - Allison Jaure
- Sydney School of Public Health, The University of Sydney, Sydney, Australia
- Centre for Kidney Research, The Children's Hospital at Westmead, Westmead, Australia
| | - Armando Teixeira-Pinto
- Sydney School of Public Health, The University of Sydney, Sydney, Australia
- Centre for Kidney Research, The Children's Hospital at Westmead, Westmead, Australia
| | - Germaine Wong
- Sydney School of Public Health, The University of Sydney, Sydney, Australia
- Centre for Kidney Research, The Children's Hospital at Westmead, Westmead, Australia
- Centre for Transplant and Renal Research, Westmead Hospital, Westmead, Australia
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Voroneanu L, Burlacu A, Brinza C, Covic A, Balan GG, Nistor I, Popa C, Hogas S, Covic A. Gut Microbiota in Chronic Kidney Disease: From Composition to Modulation towards Better Outcomes-A Systematic Review. J Clin Med 2023; 12:jcm12051948. [PMID: 36902734 PMCID: PMC10003930 DOI: 10.3390/jcm12051948] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 02/22/2023] [Accepted: 02/27/2023] [Indexed: 03/06/2023] Open
Abstract
BACKGROUND A bidirectional kidney-gut axis was described in patients with chronic kidney disease (CKD). On the one hand, gut dysbiosis could promote CKD progression, but on the other hand, studies reported specific gut microbiota alterations linked to CKD. Therefore, we aimed to systematically review the literature on gut microbiota composition in CKD patients, including those with advanced CKD stages and end-stage kidney disease (ESKD), possibilities to shift gut microbiota, and its impact on clinical outcomes. MATERIALS AND METHODS We performed a literature search in MEDLINE, Embase, Scopus, and Cochrane databases to find eligible studies using pre-specified keywords. Additionally, key inclusion and exclusion criteria were pre-defined to guide the eligibility assessment. RESULTS We retrieved 69 eligible studies which met all inclusion criteria and were analyzed in the present systematic review. Microbiota diversity was decreased in CKD patients as compared to healthy individuals. Ruminococcus and Roseburia had good power to discriminate between CKD patients and healthy controls (AUC = 0.771 and AUC = 0.803, respectively). Roseburia abundance was consistently decreased in CKD patients, especially in those with ESKD (p < 0.001). A model based on 25 microbiota dissimilarities had an excellent predictive power for diabetic nephropathy (AUC = 0.972). Several microbiota patterns were observed in deceased ESKD patients as compared to the survivor group (increased Lactobacillus, Yersinia, and decreased Bacteroides and Phascolarctobacterium levels). Additionally, gut dysbiosis was associated with peritonitis and enhanced inflammatory activity. In addition, some studies documented a beneficial effect on gut flora composition attributed to synbiotic and probiotic therapies. Large randomized clinical trials are required to investigate the impact of different microbiota modulation strategies on gut microflora composition and subsequent clinical outcomes. CONCLUSIONS Patients with CKD had an altered gut microbiome profile, even at early disease stages. Different abundance at genera and species levels could be used in clinical models to discriminate between healthy individuals and patients with CKD. ESKD patients with an increased mortality risk could be identified through gut microbiota analysis. Modulation therapy studies are warranted.
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Affiliation(s)
- Luminita Voroneanu
- Nephrology Department, Dialysis and Renal Transplant Center, “Dr. C.I. Parhon” University Hospital, 700503 Iasi, Romania
- Faculty of Medicine, ‘Grigore T. Popa’ University of Medicine, 700115 Iasi, Romania
| | - Alexandru Burlacu
- Faculty of Medicine, ‘Grigore T. Popa’ University of Medicine, 700115 Iasi, Romania
- Department of Interventional Cardiology, Cardiovascular Diseases Institute “Prof. Dr. George I.M. Georgescu”, 700503 Iasi, Romania
| | - Crischentian Brinza
- Faculty of Medicine, ‘Grigore T. Popa’ University of Medicine, 700115 Iasi, Romania
- Department of Interventional Cardiology, Cardiovascular Diseases Institute “Prof. Dr. George I.M. Georgescu”, 700503 Iasi, Romania
| | - Andreea Covic
- Nephrology Department, Dialysis and Renal Transplant Center, “Dr. C.I. Parhon” University Hospital, 700503 Iasi, Romania
- Faculty of Medicine, ‘Grigore T. Popa’ University of Medicine, 700115 Iasi, Romania
- Correspondence:
| | - Gheorghe G. Balan
- Faculty of Medicine, ‘Grigore T. Popa’ University of Medicine, 700115 Iasi, Romania
- Institute of Gastroenterology and Hepatology, St. 1 Spiridon Emergency County Hospital, 700111 Iasi, Romania
| | - Ionut Nistor
- Nephrology Department, Dialysis and Renal Transplant Center, “Dr. C.I. Parhon” University Hospital, 700503 Iasi, Romania
- Faculty of Medicine, ‘Grigore T. Popa’ University of Medicine, 700115 Iasi, Romania
| | - Cristina Popa
- Faculty of Medicine, ‘Grigore T. Popa’ University of Medicine, 700115 Iasi, Romania
| | - Simona Hogas
- Nephrology Department, Dialysis and Renal Transplant Center, “Dr. C.I. Parhon” University Hospital, 700503 Iasi, Romania
- Faculty of Medicine, ‘Grigore T. Popa’ University of Medicine, 700115 Iasi, Romania
| | - Adrian Covic
- Nephrology Department, Dialysis and Renal Transplant Center, “Dr. C.I. Parhon” University Hospital, 700503 Iasi, Romania
- Faculty of Medicine, ‘Grigore T. Popa’ University of Medicine, 700115 Iasi, Romania
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10
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Gut microbiome studies in CKD: opportunities, pitfalls and therapeutic potential. Nat Rev Nephrol 2023; 19:87-101. [PMID: 36357577 DOI: 10.1038/s41581-022-00647-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/17/2022] [Indexed: 11/12/2022]
Abstract
Interest in gut microbiome dysbiosis and its potential association with the development and progression of chronic kidney disease (CKD) has increased substantially in the past 6 years. In parallel, the microbiome field has matured considerably as the importance of host-related and environmental factors is increasingly recognized. Past research output in the context of CKD insufficiently considered the myriad confounding factors that are characteristic of the disease. Gut microbiota-derived metabolites remain an interesting therapeutic target to decrease uraemic (cardio)toxicity. However, future studies on the effect of dietary and biotic interventions will require harmonization of relevant readouts to enable an in-depth understanding of the underlying beneficial mechanisms. High-quality standards throughout the entire microbiome analysis workflow are also of utmost importance to obtain reliable and reproducible results. Importantly, investigating the relative composition and abundance of gut bacteria, and their potential association with plasma uraemic toxins levels is not sufficient. As in other fields, the time has come to move towards in-depth quantitative and functional exploration of the patient's gut microbiome by relying on confounder-controlled quantitative microbial profiling, shotgun metagenomics and in vitro simulations of microorganism-microorganism and host-microorganism interactions. This step is crucial to enable the rational selection and monitoring of dietary and biotic intervention strategies that can be deployed as a personalized intervention in CKD.
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11
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Zheng L, Luo M, Zhou H, Chen J. Natural products from plants and microorganisms: Novel therapeutics for chronic kidney disease via gut microbiota regulation. Front Pharmacol 2023; 13:1068613. [PMID: 36733377 PMCID: PMC9887141 DOI: 10.3389/fphar.2022.1068613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 12/23/2022] [Indexed: 01/18/2023] Open
Abstract
Dysbiosis of gut microbiota plays a fundamental role in the pathogenesis and development of chronic kidney disease (CKD) and its complications. Natural products from plants and microorganisms can achieve recognizable improvement in renal function and serve as an alternative treatment for chronic kidney disease patients with a long history, yet less is known on its beneficial effects on kidney injury by targeting the intestinal microbiota. In this review, we summarize studies on the effects of natural products from plants and microorganisms, including herbal medicines and their bioactive extracts, polysaccharides from plants and microorganisms, and phytochemicals, on the prevention and treatment of chronic kidney disease through targeting gut microflora. We describe the strategies of these anti-CKD effects in animal experiments including remodulation of gut microbiota structure, reduction of uremic toxins, enhancement of short-chain fatty acid (SCFA) production, regulation of intestinal inflammatory signaling, and improvement in intestinal integrity. Meanwhile, the clinical trials of different natural products in chronic kidney disease clinical practice were also analyzed and discussed. These provide information to enable a better understanding of the renoprotective effects of these effective natural products from plants and microorganisms in the treatment of chronic kidney disease. Finally, we propose the steps to prove the causal role of the intestinal microflora in the treatment of chronic kidney disease by natural products from plants and microorganisms. We also assess the future perspective that natural active products from plants and microorganisms can beneficially delay the onset and progression of kidney disease by targeting the gut flora and highlight the remaining challenges in this area. With the continuous deepening of studies in recent years, it has been proved that gut microbiota is a potential target of natural active products derived from plants and microorganisms for chronic kidney disease treatment. Fully understanding the functions and mechanisms of gut microbiota in these natural active products from plants and microorganisms is conducive to their application as an alternative therapeutic in the treatment of chronic kidney disease.
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Affiliation(s)
- Lin Zheng
- Shenzhen Key Laboratory of Hospital Chinese Medicine Preparation, Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen, China
| | - Mingjing Luo
- Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China,CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institutes of Advanced Technology, Shenzhen, China
| | - Haokui Zhou
- Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China,CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institutes of Advanced Technology, Shenzhen, China
| | - Jianping Chen
- Shenzhen Key Laboratory of Hospital Chinese Medicine Preparation, Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen, China,*Correspondence: Jianping Chen,
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12
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Moreira LDSG, Brum IDSDC, de Vargas Reis DCM, Trugilho L, Chermut TR, Esgalhado M, Cardozo LFMF, Stenvinkel P, Shiels PG, Mafra D. Cinnamon: an aromatic condiment applicable to chronic kidney disease. Kidney Res Clin Pract 2023; 42:4-26. [PMID: 36747357 PMCID: PMC9902738 DOI: 10.23876/j.krcp.22.111] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 07/14/2022] [Indexed: 02/01/2023] Open
Abstract
Cinnamon, a member of the Lauraceae family, has been widely used as a spice and traditional herbal medicine for centuries and has shown beneficial effects in cardiovascular disease, obesity, and diabetes. However, its effectiveness as a therapeutic intervention for chronic kidney disease (CKD) remains unproven. The bioactive compounds within cinnamon, such as cinnamaldehyde, cinnamic acid, and cinnamate, can mitigate oxidative stress, inflammation, hyperglycemia, gut dysbiosis, and dyslipidemia, which are common complications in patients with CKD. In this narrative review, we assess the mechanisms by which cinnamon may alleviate complications observed in CKD and the possible role of this spice as an additional nutritional strategy for this patient group.
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Affiliation(s)
| | | | | | - Liana Trugilho
- Graduate Program in Medical Sciences, Fluminense Federal University, Niterói, Brazil
| | - Tuany R. Chermut
- Graduate Program in Nutrition Sciences, Fluminense Federal University, Niterói, Brazil
| | - Marta Esgalhado
- Graduate Program in Cardiovascular Sciences, Fluminense Federal University, Niterói, Brazil
| | | | - Peter Stenvinkel
- Division of Renal Medicine, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden,Correspondence: Peter Stenvinkel Division of Renal Medicine, Department of Clinical Science, Intervention and Technology, Karolinska University Hospital M99, 141 86 Stockholm, Sweden. E-mail:
| | - Paul G. Shiels
- Institute of Cancer Sciences, College of Medicine, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Denise Mafra
- Graduate Program in Medical Sciences, Fluminense Federal University, Niterói, Brazil,Graduate Program in Nutrition Sciences, Fluminense Federal University, Niterói, Brazil,Graduate Program in Biological Sciences – Physiology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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13
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Shiels P, Tran N, McCavitt J, Neytchev O, Stenvinkel P. Chronic Kidney Disease and the Exposome of Ageing. Subcell Biochem 2023; 103:79-94. [PMID: 37120465 DOI: 10.1007/978-3-031-26576-1_5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
The gap between improvements in lifespan and age-related health is widening. Globally, the demographic of ageing is increasing and there has emerged a 'diseasome of ageing', typified by a range of non-communicable diseases which share a common underlying component of a dysregulated ageing process. Within this, chronic kidney disease is an emerging global epidemic.The extensive inter-individual variation displayed in how people age and how their diseasome manifests and progresses, has required a renewed focus on their life course exposures and the interplay between the environment and the (epi)genome. Termed the exposome, life course abiotic and biotic factors have a significant impact on renal health.We explore how the exposome of renal ageing can predispose and affect CKD progression. We discuss how the kidney can be used as a model to understand the impact of the exposome in health and chronic kidney disease and how this might be manipulated to improve health span.Notably, we discuss the manipulation of the foodome to mitigate acceleration of ageing processes by phosphate and to explore use of emerging senotherapies. A range of senotherapies, for removing senescent cells, diminishing inflammatory burden and either directly targeting Nrf2, or manipulating it indirectly via modification of the microbiome are discussed.
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Affiliation(s)
- Paul Shiels
- SoMBS, Davidson Building, University of Glasgow, Glasgow, UK.
| | - Ngoc Tran
- SoMBS, Davidson Building, University of Glasgow, Glasgow, UK
| | - Jen McCavitt
- SoMBS, Davidson Building, University of Glasgow, Glasgow, UK
| | - Ognian Neytchev
- SoMBS, Davidson Building, University of Glasgow, Glasgow, UK
| | - Peter Stenvinkel
- Division of Renal Medicine, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
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14
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Yi SW, Lee HG, So KM, Kim E, Jung YH, Kim M, Jeong JY, Kim KH, Oem JK, Hur TY, Oh SI. Effect of feeding raw potato starch on the composition dynamics of the piglet intestinal microbiome. Anim Biosci 2022; 35:1698-1710. [PMID: 36108705 PMCID: PMC9659463 DOI: 10.5713/ab.22.0045] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 07/04/2022] [Indexed: 01/25/2023] Open
Abstract
OBJECTIVE Raw potato starch (RPS) is resistant to digestion, escapes absorption, and is metabolized by intestinal microflora in the large intestine and acts as their energy source. In this study, we compared the effect of different concentrations of RPS on the intestinal bacterial community of weaned piglets. METHODS Male weaned piglets (25-days-old, 7.03±0.49 kg) were either fed a corn/soybean-based control diet (CON, n = 6) or two treatment diets supplemented with 5% RPS (RPS5, n = 4) or 10% RPS (RPS10, n = 4) for 20 days and their fecal samples were collected. The day 0 and 20 samples were analyzed using a 16S rRNA gene sequencing technology, followed by total genomic DNA extraction, library construction, and high-throughput sequencing. After statistical analysis, five phyla and 45 genera accounting for over 0.5% of the reads in any of the three groups were further analyzed. Furthermore, short-chain fatty acids (SCFAs) in the day 20 fecal samples were analyzed using gas chromatography. RESULTS Significant changes were not observed in the bacterial composition at the phylum level even after 20 d post feeding (dpf); however, the abundance of Intestinimonas and Barnesiella decreased in both RPS treatment groups compared to the CON group. Consumption of 5% RPS increased the abundance of Roseburia (p<0.05) and decreased the abundance of Clostridium (p<0.01) and Mediterraneibacter (p< 0.05). In contrast, consumption of 10% RPS increased the abundance of Olsenella (p<0.05) and decreased the abundance of Campylobacter (p<0.05), Kineothrix (p<0.05), Paraprevotella (p<0.05), and Vallitalea (p<0.05). Additionally, acetate (p<0.01), butyrate (p<0.05), valerate (p = 0.01), and total SCFAs (p = 0.01) were upregulated in the RPS5 treatment group. CONCLUSION Feeding 5% RPS altered bacterial community composition and promoted gut health in weaned piglets. Thus, resistant starch as a feed additive may prevent diarrhea in piglets during weaning.
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Affiliation(s)
- Seung-Won Yi
- Division of Animal Diseases & Health, National Institute of Animal Science, Rural Development Administration, Wanju 55365,
Korea
| | - Han Gyu Lee
- Division of Animal Diseases & Health, National Institute of Animal Science, Rural Development Administration, Wanju 55365,
Korea,Laboratory of Veterinary Infectious Disease, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596,
Korea
| | - Kyoung-Min So
- Division of Animal Diseases & Health, National Institute of Animal Science, Rural Development Administration, Wanju 55365,
Korea
| | - Eunju Kim
- Division of Animal Diseases & Health, National Institute of Animal Science, Rural Development Administration, Wanju 55365,
Korea
| | - Young-Hun Jung
- Division of Animal Diseases & Health, National Institute of Animal Science, Rural Development Administration, Wanju 55365,
Korea
| | - Minji Kim
- Animal Nutrition and Physiology Division, National Institute of Animal Science, Rural Development Administration, Wanju 55365,
Korea
| | - Jin Young Jeong
- Animal Nutrition and Physiology Division, National Institute of Animal Science, Rural Development Administration, Wanju 55365,
Korea
| | - Ki Hyun Kim
- Animal Welfare Research Team, National Institute of Animal Science, Rural Development Administration, Wanju 55365,
Korea
| | - Jae-Ku Oem
- Laboratory of Veterinary Infectious Disease, College of Veterinary Medicine, Jeonbuk National University, Iksan 54596,
Korea
| | - Tai-Young Hur
- Division of Animal Diseases & Health, National Institute of Animal Science, Rural Development Administration, Wanju 55365,
Korea
| | - Sang-Ik Oh
- Division of Animal Diseases & Health, National Institute of Animal Science, Rural Development Administration, Wanju 55365,
Korea,Corresponding Author: Sang-Ik Oh, Tel: +82-63-238-7228, Fax: +82-63-238-7235, E-mail:
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15
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Dietary Polysaccharides as Modulators of the Gut Microbiota Ecosystem: An Update on Their Impact on Health. Nutrients 2022; 14:nu14194116. [PMID: 36235768 PMCID: PMC9573424 DOI: 10.3390/nu14194116] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 09/30/2022] [Accepted: 10/01/2022] [Indexed: 12/13/2022] Open
Abstract
A polysaccharide is a macromolecule composed of more than ten monosaccharides with a wide distribution and high structural diversity and complexity in nature. Certain polysaccharides are immunomodulators and play key roles in the regulation of immune responses during the progression of some diseases. In addition to stimulating the growth of certain intestinal bacteria, polysaccharides may also promote health benefits by modulating the gut microbiota. In the last years, studies about the triad gut microbiota–polysaccharides–health have increased exponentially. In consequence, in the present review, we aim to summarize recent knowledge about the function of dietary polysaccharides on gut microbiota composition and how these effects affect host health.
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16
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Wu YX, Yang XY, Han BS, Hu YY, An T, Lv BH, Lian J, Wang TY, Bao XL, Gao L, Jiang GJ. Naringenin regulates gut microbiota and SIRT1/ PGC-1ɑ signaling pathway in rats with letrozole-induced polycystic ovary syndrome. Biomed Pharmacother 2022; 153:113286. [PMID: 35724506 DOI: 10.1016/j.biopha.2022.113286] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/31/2022] [Accepted: 06/09/2022] [Indexed: 11/02/2022] Open
Abstract
PURPOSE To evaluate the effect of naringenin on improving PCOS and explore the mechanism. METHODS Firstly, we carried out differential gene expression analysis from transcriptome sequencing data of human oocyte to screen the KEGG pathway, then the PCOS-like rat model was induced by letrozole. They were randomly divided into four groups: Normal group (N), PCOS group (P), Diane-35 group (D), and Naringenin group (Nar). The changes of estrus cycle, body weight, ovarian function, serum hormone levels, glucose metabolism, along with the expression of SIRT1, PGC-1ɑ, claudin-1 and occludin of the ovary and colon were investigated. Furthermore, the composition of the gut microbiome of fecal was tested. RESULTS By searching the KEGG pathway in target genes, we found that at least 15 KEGG pathways are significantly enriched in the ovarian function, such as AMPK signaling pathway, insulin secretion, and ovarian steroidogenesis. Interestingly, naringenin supplementation significantly reduced body weight, ameliorated hormone levels, improved insulin resistance, and mitigated pathological changes in ovarian tissue, up-regulated the expression of PGC-1ɑ, SIRT1, occludin and claudin-1 in colon. In addition, we also found that the abundance of Prevotella and Gemella was down-regulated, while the abundance of Butyricimonas, Lachnospira, Parabacteroides, Butyricicoccus, Streptococcus, Coprococcus was up-regulated. CONCLUSION Our data suggest that naringenin exerts a treatment PCOS effect, which may be related to the modulation of the gut microbiota and SIRT1/PGC-1ɑ signaling pathway. Our research may provide a new perspective for the treatment of PCOS and related diseases.
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Affiliation(s)
- Yan-Xiang Wu
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Xiu-Yan Yang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Bao-Sheng Han
- Maternity and Child Care Hospital of North China University of Science and Technology, Tangshan, China
| | - Yuan-Yuan Hu
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Tian An
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Bo-Han Lv
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Juan Lian
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Ting-Ye Wang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Xue-Li Bao
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Lin Gao
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
| | - Guang-Jian Jiang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
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17
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Ran B, Guo CE, Zhang Y, Han C, Cao T, Huang H, Geng Z, Li W. Preventive effect of Chinese dwarf cherry [ Cerasus humilis (Bge.) Sok.] fermentation juice on dextran sulfate sodium-induced ulcerative colitis rats through the regulation of IgA and the intestinal immune barrier. Food Funct 2022; 13:5766-5781. [PMID: 35536119 DOI: 10.1039/d1fo04218a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ulcerative colitis (UC) is a modern, refractory disease, and studies have shown that UC is closely associated with the gut microbiota and intestinal immune barrier. This study evaluated the protective effects and regulatory mechanism of Chinese dwarf cherry [Cerasus humilis (Bge.) Sok.] fermentation juice (CFJ) on UC induced by dextran sulfate sodium (DSS). The results indicated that CFJ could significantly modulate the oxidative stress index in the serum and colon, observably reduce MPO and NO activity, and increase the SOD level. CFJ significantly downregulated the levels of TNF-α, IL-1β and IL-6 and reduced inflammation caused by DSS. SIgA and short-chain fatty acids (SCFAs) levels were effectively improved in the CFJ group, especially the acetic acid and butyric acid levels. Intestinal flora analysis showed that DSS could enrich harmful bacteria such as Alistipes and Oribacterium and that CFJ could increase the abundance of beneficial bacteria (Parasutterella, Bacteroides, Roseburia and Blautia). SIgA in the colon was positively correlated with Lachnoclostridium, Blautia, Lachnospiraceae_UCG-004, Prevotellaceae_NK3B31_group and other beneficial bacteria. The results showed that DSS group rats had immunity and signalling pathway disorders and that CFJ could regulate immune disorders, mainly by regulating the expression of IgA pathway components. Taken together, our results demonstrated that CFJ could regulate changes in the gut microbiota, improve the expression of immune protein-related genes, further regulate intestinal mucosal immune function and maintain intestinal mucosal barrier homeostasis.
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Affiliation(s)
- Beibei Ran
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China. .,Engineering Research Center of Good Agricultural Practice for Chinese Crude Drugs, Ministry of Education, Beijing 102488, P. R. China
| | - Chang-E Guo
- Beijing Fengtai District Hospital of Chinese Medicine, Nanyuan Hospital, Beijing 100076, P. R. China
| | - Yushi Zhang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China. .,Engineering Research Center of Good Agricultural Practice for Chinese Crude Drugs, Ministry of Education, Beijing 102488, P. R. China
| | - Chao Han
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China. .,Engineering Research Center of Good Agricultural Practice for Chinese Crude Drugs, Ministry of Education, Beijing 102488, P. R. China
| | - Tianli Cao
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China. .,Engineering Research Center of Good Agricultural Practice for Chinese Crude Drugs, Ministry of Education, Beijing 102488, P. R. China
| | - Houyu Huang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China. .,Engineering Research Center of Good Agricultural Practice for Chinese Crude Drugs, Ministry of Education, Beijing 102488, P. R. China
| | - Zeyu Geng
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China. .,Engineering Research Center of Good Agricultural Practice for Chinese Crude Drugs, Ministry of Education, Beijing 102488, P. R. China
| | - Weidong Li
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, P. R. China. .,Engineering Research Center of Good Agricultural Practice for Chinese Crude Drugs, Ministry of Education, Beijing 102488, P. R. China
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18
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Short-Chain Fatty Acids in Chronic Kidney Disease: Focus on Inflammation and Oxidative Stress Regulation. Int J Mol Sci 2022; 23:ijms23105354. [PMID: 35628164 PMCID: PMC9140893 DOI: 10.3390/ijms23105354] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 05/08/2022] [Accepted: 05/10/2022] [Indexed: 12/12/2022] Open
Abstract
Chronic Kidney Disease (CKD) is a debilitating disease associated with several secondary complications that increase comorbidity and mortality. In patients with CKD, there is a significant qualitative and quantitative alteration in the gut microbiota, which, consequently, also leads to reduced production of beneficial bacterial metabolites, such as short-chain fatty acids. Evidence supports the beneficial effects of short-chain fatty acids in modulating inflammation and oxidative stress, which are implicated in CKD pathogenesis and progression. Therefore, this review will provide an overview of the current knowledge, based on pre-clinical and clinical evidence, on the effect of SCFAs on CKD-associated inflammation and oxidative stress.
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19
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Kadyan S, Sharma A, Arjmandi BH, Singh P, Nagpal R. Prebiotic Potential of Dietary Beans and Pulses and Their Resistant Starch for Aging-Associated Gut and Metabolic Health. Nutrients 2022; 14:nu14091726. [PMID: 35565693 PMCID: PMC9100130 DOI: 10.3390/nu14091726] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 04/18/2022] [Accepted: 04/19/2022] [Indexed: 01/27/2023] Open
Abstract
Dietary pulses, including dry beans, lentils, chickpeas, and dry peas, have the highest proportion of fiber among different legume cultivars and are inexpensive, easily accessible, and have a long shelf-life. The inclusion of pulses in regular dietary patterns is an easy and effective solution for achieving recommended fiber intake and maintaining a healthier gut and overall health. Dietary pulses-derived resistant starch (RS) is a relatively less explored prebiotic ingredient. Several in vitro and preclinical studies have elucidated the crucial role of RS in fostering and shaping the gut microbiota composition towards homeostasis thereby improving host metabolic health. However, in humans and aged animal models, the effect of only the cereals and tubers derived RS has been studied. In this context, this review collates literature pertaining to the beneficial effects of dietary pulses and their RS on gut microbiome-metabolome signatures in preclinical and clinical studies while contemplating their potential and prospects for better aging-associated gut health. In a nutshell, the incorporation of dietary pulses and their RS in diet fosters the growth of beneficial gut bacteria and significantly enhances the production of short-chain fatty acids in the colon.
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Bendiks ZA, Guice J, Coulon D, Raggio AM, Page RC, Carvajal-Aldaz DG, Luo M, Welsh DA, Marx BD, Taylor CM, Husseneder C, Keenan MJ, Marco ML. Resistant starch type 2 and whole grain maize flours enrich different intestinal bacteria and metatranscriptomes. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.104982] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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