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Firrman J, Friedman ES, Hecht A, Strange WC, Narrowe AB, Mahalak K, Wu GD, Liu L. Preservation of conjugated primary bile acids by oxygenation of the small intestinal microbiota in vitro. mBio 2024; 15:e0094324. [PMID: 38727244 DOI: 10.1128/mbio.00943-24] [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: 04/01/2024] [Accepted: 04/04/2024] [Indexed: 06/13/2024] Open
Abstract
Bile acids play a critical role in the emulsification of dietary lipids, a critical step in the primary function of the small intestine, which is the digestion and absorption of food. Primary bile acids delivered into the small intestine are conjugated to enhance functionality, in part, by increasing aqueous solubility and preventing passive diffusion of bile acids out of the gut lumen. Bile acid function can be disrupted by the gut microbiota via the deconjugation of primary bile acids by bile salt hydrolases (BSHs), leading to their conversion into secondary bile acids through the expression of bacterial bile acid-inducible genes, a process often observed in malabsorption due to small intestinal bacterial overgrowth. By modeling the small intestinal microbiota in vitro using human small intestinal ileostomy effluent as the inocula, we show here that the infusion of physiologically relevant levels of oxygen, normally found in the proximal small intestine, reduced deconjugation of primary bile acids, in part, through the expansion of bacterial taxa known to have a low abundance of BSHs. Further recapitulating the small intestinal bile acid composition of the small intestine, limited conversion of primary into secondary bile acids was observed. Remarkably, these effects were preserved among four separate communities, each inoculated with a different small intestinal microbiota, despite a high degree of taxonomic variability under both anoxic and aerobic conditions. In total, these results provide evidence for a previously unrecognized role that the oxygenated environment of the small intestine plays in the maintenance of normal digestive physiology. IMPORTANCE Conjugated primary bile acids are produced by the liver and exist at high concentrations in the proximal small intestine, where they are critical for proper digestion. Deconjugation of these bile acids with subsequent transformation via dehydroxylation into secondary bile acids is regulated by the colonic gut microbiota and reduces their digestive function. Using an in vitro platform modeling the small intestinal microbiota, we analyzed the ability of this community to transform primary bile acids and studied the effect of physiological levels of oxygen normally found in the proximal small intestine (5%) on this metabolic process. We found that oxygenation of the small intestinal microbiota inhibited the deconjugation of primary bile acids in vitro. These findings suggest that luminal oxygen levels normally found in the small intestine may maintain the optimal role of bile acids in the digestive process by regulating bile acid conversion by the gut microbiota.
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Affiliation(s)
- Jenni Firrman
- Dairy and Functional Foods Research Unit, Eastern Regional Research Center, Agricultural Research Service, US Department of Agriculture, Wyndmoor, Pennsylvania, USA
| | - Elliot S Friedman
- Division of Gastroenterology and Hepatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Aaron Hecht
- Division of Gastroenterology and Hepatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - William C Strange
- Division of Gastroenterology and Hepatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Adrienne B Narrowe
- Dairy and Functional Foods Research Unit, Eastern Regional Research Center, Agricultural Research Service, US Department of Agriculture, Wyndmoor, Pennsylvania, USA
| | - Karley Mahalak
- Dairy and Functional Foods Research Unit, Eastern Regional Research Center, Agricultural Research Service, US Department of Agriculture, Wyndmoor, Pennsylvania, USA
| | - Gary D Wu
- Division of Gastroenterology and Hepatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - LinShu Liu
- Dairy and Functional Foods Research Unit, Eastern Regional Research Center, Agricultural Research Service, US Department of Agriculture, Wyndmoor, Pennsylvania, USA
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Khan S, Ahmad F, Khalid N. Applications of Strain-Specific Probiotics in the Management of Cardiovascular Diseases: A Systemic Review. Mol Nutr Food Res 2024; 68:e2300675. [PMID: 38549453 DOI: 10.1002/mnfr.202300675] [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: 09/20/2023] [Revised: 02/14/2024] [Indexed: 05/08/2024]
Abstract
Cardiovascular diseases (CVDs) are a leading cause of global mortality and novel approaches for prevention and management are needed. The human gastrointestinal tract hosts a diverse microbiota that is crucial in maintaining metabolic homeostasis. The formulation of effective probiotics, alone or in combination, has been under discussion due to their impact on cardiovascular and metabolic diseases. Probiotics have been shown to impact cardiovascular health positively. An imbalance in the presence of Firmicutes and Bacteroidetes has been linked to the progression of CVDs due to their impact on bile acid and cholesterol metabolism. The probiotics primarily help in the reduction of plasma low-density lipoprotein levels and attenuation of the proinflammatory markers. These beneficial microorganisms contribute to lowering cholesterol levels and produce essential short-chain fatty acids. The impact of lipid-regulating probiotic strains on human health is quite significant. However, only a few have been tested for potential beneficial efficacy, and ambiguity exists regarding strain dosages, interactions with confounding factors, and potential adverse effects. Hence, more comprehensive studies and randomized trials are needed to understand the mechanisms of probiotics on CVDs and to ensure human health. This review assesses the evidence and highlights the roles of strain-specific probiotics in the management of CVDs.
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Affiliation(s)
- Saleha Khan
- Department of Human Nutrition and Dietetics, School of Food and Agricultural Sciences, University of Management and Technology, Lahore, 54000, Pakistan
| | - Firdos Ahmad
- Department of Basic Medical Sciences, College of Medicine, University of Sharjah, Sharjah, 27272, United Arab Emirates
| | - Nauman Khalid
- Department of Human Nutrition and Dietetics, School of Food and Agricultural Sciences, University of Management and Technology, Lahore, 54000, Pakistan
- College of Health Sciences, Abu Dhabi University, Abu Dhabi, 59911, United Arab Emirates
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3
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Diao X, Ke W, Li S, Mao X, Shan K, Zhang M, Zhao D, Li C. Effect of wheat aleurone on lard emulsions during in vitro digestion. Food Chem 2024; 435:137530. [PMID: 37757681 DOI: 10.1016/j.foodchem.2023.137530] [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: 05/19/2023] [Revised: 09/06/2023] [Accepted: 09/17/2023] [Indexed: 09/29/2023]
Abstract
Dietary wheat aleurone has been shown to affect lipid metabolism and reduce the incidence of obesity. However, the underlying mechanisms are not fully understood. This work aimed to investigate how whole wheat aleurone affects lipolysis during the whole digestion process in vitro. The physicochemical and microstructural changes and the lipolysis kinetics of different lard emulsion mixtures were determined. The results showed that the lipolysis rate and degree are inversely proportional to the amount of wheat aleurone. Wheat aleurone and flour promoted the aggregation and flocculation of lipid droplets by increasing the viscosity. More importantly, the dietary fibers released from aleurone digestion can reduced the binding of lipase to lipid droplets by adsorbing lipid droplets to increase the steric hindrance effect. These results provide a better understanding of how whole grains affect lipid digestibility and will further contribute to the development of functional foods and the improvement of individual health.
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Affiliation(s)
- Xinyue Diao
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, Nanjing 210095, China; Key Laboratory of Meat Processing, MARA, Nanjing 210095, China; Jiangsu Innovative Center of Meat Production, Processing and Quality Control, Nanjing 210095, China; College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Weixin Ke
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, Nanjing 210095, China; Key Laboratory of Meat Processing, MARA, Nanjing 210095, China; Jiangsu Innovative Center of Meat Production, Processing and Quality Control, Nanjing 210095, China; College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Shanshan Li
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, Nanjing 210095, China; Key Laboratory of Meat Processing, MARA, Nanjing 210095, China; Jiangsu Innovative Center of Meat Production, Processing and Quality Control, Nanjing 210095, China; College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Xinrui Mao
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, Nanjing 210095, China; Key Laboratory of Meat Processing, MARA, Nanjing 210095, China; Jiangsu Innovative Center of Meat Production, Processing and Quality Control, Nanjing 210095, China; College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Kai Shan
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, Nanjing 210095, China; Key Laboratory of Meat Processing, MARA, Nanjing 210095, China; Jiangsu Innovative Center of Meat Production, Processing and Quality Control, Nanjing 210095, China; College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Miao Zhang
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, Nanjing 210095, China; Key Laboratory of Meat Processing, MARA, Nanjing 210095, China; Jiangsu Innovative Center of Meat Production, Processing and Quality Control, Nanjing 210095, China; College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Di Zhao
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, Nanjing 210095, China; Key Laboratory of Meat Processing, MARA, Nanjing 210095, China; Jiangsu Innovative Center of Meat Production, Processing and Quality Control, Nanjing 210095, China; College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Chunbao Li
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, Nanjing 210095, China; Key Laboratory of Meat Processing, MARA, Nanjing 210095, China; Jiangsu Innovative Center of Meat Production, Processing and Quality Control, Nanjing 210095, China; College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
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Yin C, Wen X, Dang G, Zhong R, Meng Q, Feng X, Liu L, Wu S, He J, Chen L, Zhang H. Modulation of pectin on intestinal barrier function via changes in microbial functional potential and bile acid metabolism. J Nutr Biochem 2024; 124:109491. [PMID: 37865382 DOI: 10.1016/j.jnutbio.2023.109491] [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: 01/19/2023] [Revised: 04/25/2023] [Accepted: 10/17/2023] [Indexed: 10/23/2023]
Abstract
Weaning is one of the major factors that cause stress and intestinal infection in infants and in young animals due to an immature intestine and not fully developed immune functions. Pectin (PEC), a prebiotic polysaccharide, has attracted considerable attention in intestinal epithelial signaling and function via modulation of the microbial community. A total of 16 weaned piglets (21-d-old) were randomly assigned into two groups: control group and PEC group. Supplementation of 5% pectin improved intestinal mucosal barrier function by modulating the composition of the bile acid pool in piglets. Specifically, piglets in PEC group had less serum D-lactate content and alkaline phosphatase activity. In the ileum, dietary pectin increased the number of crypt PAS/AB-positive goblet cells and the mRNA expressions of MUC2, ZO-1, and Occludin. Piglets in PEC group displayed a decreased abundance of Enterococcus (2.71 vs. 65.92%), but the abundances of Lactobacillus (30.80 vs. 7.93%), Streptococcus (21.41 vs. 14.81%), and Clostridium_sensu_stricto_1 (28.34 vs. 0.01%) were increased. Elevated concentrations of bile acids especially hyocholic acid species (HCAs) including HCA, HDCA, and THDCA were also observed. Besides, correlation analysis revealed that dietary pectin supplementation may have beneficial effects through stimulation of the crosstalk between gut microbes and bile acid synthesis within the enterohepatic circulation. Thus, dietary pectin supplementation exhibited a further positive effect on the healthy growth and development of weaned piglets. These findings suggest pectin supplementation as the prebiotic is beneficial for gut health and improvement of weaned stress via regulating microbiota and bile acid metabolism.
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Affiliation(s)
- Chang Yin
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, P. R. China
| | - Xiaobin Wen
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, P. R. China
| | - Guoqi Dang
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, P. R. China
| | - Ruqing Zhong
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, P. R. China
| | - Qingshi Meng
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, P. R. China
| | - Xiaohui Feng
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, P. R. China
| | - Lei Liu
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, P. R. China
| | - Shusong Wu
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, P. R. China; College of Animal Science and Technology, Hunan Agricultural University, Changsha, P. R. China
| | - Jianhua He
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, P. R. China
| | - Liang Chen
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, P. R. China.
| | - Hongfu Zhang
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, P. R. China
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Pan Y, Zhang H, Li M, He T, Guo S, Zhu L, Tan J, Wang B. Novel approaches in IBD therapy: targeting the gut microbiota-bile acid axis. Gut Microbes 2024; 16:2356284. [PMID: 38769683 PMCID: PMC11110704 DOI: 10.1080/19490976.2024.2356284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 05/13/2024] [Indexed: 05/22/2024] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic and recurrent condition affecting the gastrointestinal tract. Disturbed gut microbiota and abnormal bile acid (BA) metabolism are notable in IBD, suggesting a bidirectional relationship. Specifically, the diversity of the gut microbiota influences BA composition, whereas altered BA profiles can disrupt the microbiota. IBD patients often exhibit increased primary bile acid and reduced secondary bile acid concentrations due to a diminished bacteria population essential for BA metabolism. This imbalance activates BA receptors, undermining intestinal integrity and immune function. Consequently, targeting the microbiota-BA axis may rectify these disturbances, offering symptomatic relief in IBD. Here, the interplay between gut microbiota and bile acids (BAs) is reviewed, with a particular focus on the role of gut microbiota in mediating bile acid biotransformation, and contributions of the gut microbiota-BA axis to IBD pathology to unveil potential novel therapeutic avenues for IBD.
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Affiliation(s)
- Yinping Pan
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, PR China
| | - Haojie Zhang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, PR China
| | - Minghui Li
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, PR China
| | - Tingjing He
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, PR China
| | - Sihao Guo
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, PR China
| | - Liancai Zhu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, PR China
| | - Jun Tan
- Chongqing Key Laboratory of Medicinal Resources in the Three Gorges Reservoir Region, School of Biological & Chemical engineering, Chongqing University of Education, Chongqing, PR China
| | - Bochu Wang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, PR China
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Zong W, Salich J, Kastl A, Kirsch J, Albenberg L, Bales C. Whole Foods Introduction Associated With Symptomatic Anastomotic Ulceration in Children With Short Bowel Syndrome. J Pediatr Gastroenterol Nutr 2023; 77:788-795. [PMID: 37705420 DOI: 10.1097/mpg.0000000000003942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/15/2023]
Abstract
OBJECTIVES Anastomotic ulceration (AU) is a rare but life-threatening complication of pediatric short bowel syndrome (SBS). AUs may be challenging to detect and refractory to treatment. This study aimed to identify features associated with symptomatic bleeding AUs in children with SBS and factors that may impact resolution of bleeding. The relationship between dietary changes and symptomatic anastomotic hemorrhage was also explored. METHODS We conducted a retrospective chart review of 381 patients cared for in the Intestinal Rehabilitation Program at our center from 2013 to 2022. Patients with symptomatic AUs were identified based on at least 1 endoscopic procedure showing AUs and evidence of clinically significant gastrointestinal bleeding. We collected patient demographics, clinical characteristics, dietary history, radiologic imaging, and histopathology. We used descriptive statistics to identify patterns of presentation. RESULTS AUs were identified in 22 patients who were followed for a median duration of 2.9 years after anastomotic ulcer identification. AUs uniformly evolved years after the initial anastomosis (median 3.2 years). Characteristics included bowel stricture (4/22), small bowel-colon anastomosis (19/22), partial colectomy (17/22), and an increase in whole foods fraction (12/18). Bleeding resolved with operative intervention in the majority with anastomotic stricture (3/4). Recurrent bleeding was common in those without stricture (13/18). In a subset of patients without stricture, whole food reduction was associated with improvement or resolution of bleeding (5/6). CONCLUSIONS We observed a higher proportion of patients with AUs who responded to surgical intervention in the subset of children with definitive anastomotic strictures versus those without, suggesting that careful characterization of intestinal anatomy may be critical to predicting response to therapy. We also observed that bleeding from AU typically first manifested within 1 year of a shift from elemental or hydrolyzed enteral formula to a whole food-based diet (including commercial blenderized feeds), which may indicate that components of the enteral diet play a role in the pathogenesis of AU. Further studies are needed to validate these hypotheses.
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Affiliation(s)
- Wenjing Zong
- From the Division of Gastroenterology, Hepatology, and Nutrition, Children's Hospital of Philadelphia, Philadelphia, PA
| | | | - Arthur Kastl
- From the Division of Gastroenterology, Hepatology, and Nutrition, Children's Hospital of Philadelphia, Philadelphia, PA
| | - Jacqueline Kirsch
- From the Division of Gastroenterology, Hepatology, and Nutrition, Children's Hospital of Philadelphia, Philadelphia, PA
| | - Lindsey Albenberg
- From the Division of Gastroenterology, Hepatology, and Nutrition, Children's Hospital of Philadelphia, Philadelphia, PA
| | - Christina Bales
- From the Division of Gastroenterology, Hepatology, and Nutrition, Children's Hospital of Philadelphia, Philadelphia, PA
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7
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Chowdhury F, Hill L, Shah N, Popov J, Cheveldayoff P, Pai N. Intestinal microbiome in short bowel syndrome: diagnostic and therapeutic opportunities. Curr Opin Gastroenterol 2023; 39:463-471. [PMID: 37751391 DOI: 10.1097/mog.0000000000000970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Abstract
PURPOSE OF REVIEW The intestinal microbiome plays a strong, complementary role in the development and integrity of the intestinal epithelium. This biology is crucial for intestinal adaptation, particularly after the mucosal insults that lead to short bowel syndrome (SBS). The purpose of this review is to discuss relationships between the intestinal microbiota and the physiology of intestinal adaptation. RECENT FINDINGS We will address interactions between the intestinal microbiome and nutritional metabolism, factors leading to dysbiosis in SBS, and common compositional differences of the gut microbiome in SBS patients as compared to healthy controls. We will also discuss novel opportunities to expand diagnostic and therapeutic interventions in this population, by using our knowledge of the microbiome to manipulate luminal bacteria and study their resultant metabolites. As microbial therapeutics advance across so many fields of medicine, this review is timely in its advocacy for ongoing research that focuses on the SBS population.Our review will discuss 4 key areas: 1) physiology of the intestinal microbiome in SBS, 2) clinical and therapeutic insults that lead to a state of dysbiosis, 3) currently available evidence on microbiome-based approaches to SBS management, and 4) opportunities and innovations to inspire future research. SUMMARY The clinical implications of this review are both current, and potential. Understanding how the microbiome impacts intestinal adaptation and host physiology may enhance our understanding of why we experience such clinical variability in SBS patients' outcomes. This review may also expand clinicians' understanding of what 'personalized medicine' can mean for this patient population, and how we may someday consider our nutritional, therapeutic, and prognostic recommendations based on our patients' host, and microbial physiology.
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Affiliation(s)
- Fariha Chowdhury
- Department of Pediatrics, Faculty of Health Sciences, McMaster University, Hamilton, Ontario
| | - Lee Hill
- Department of Pediatrics, Faculty of Health Sciences, McMaster University, Hamilton, Ontario
- Department of Pediatrics, Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Nyah Shah
- Department of Pediatrics, Faculty of Health Sciences, McMaster University, Hamilton, Ontario
| | - Jelena Popov
- Harvard Medical School, Boston, Massachusetts, United States of America
| | - Paige Cheveldayoff
- Department of Pediatrics, Faculty of Health Sciences, McMaster University, Hamilton, Ontario
- Centre for Metabolism, Obesity and Diabetes Research
| | - Nikhil Pai
- Department of Pediatrics, Faculty of Health Sciences, McMaster University, Hamilton, Ontario
- Centre for Metabolism, Obesity and Diabetes Research
- Farncombe Family Digestive Health Research Institute, McMaster University
- Division of Pediatric Gastroenterology & Nutrition, McMaster Children's Hospital, Hamilton, Ontario, Canada
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Zhang Q, Zhang X, Wang Q, Chen S. Dioscoreae Rhizoma starch improves chronic diarrhea by regulating the gut microbiotas and fecal metabolome in rats. Food Sci Nutr 2023; 11:6271-6287. [PMID: 37823173 PMCID: PMC10563677 DOI: 10.1002/fsn3.3567] [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: 03/19/2023] [Revised: 06/11/2023] [Accepted: 07/05/2023] [Indexed: 10/13/2023] Open
Abstract
Chinese yam (Dioscorea opposite Thunb.) has been used as food and medicine to treat diarrhea for thousands of years. This article aimed to elucidate the potential mechanism of Dioscoreae Rhizoma starch in alleviating chronic diarrhea induced by rhubarb based on gut microbiotas and fecal metabolome. The administration of the Dioscoreae Rhizoma aqueous extracts, crude polysaccharides, and starch could improve diarrhea and alleviate intestinal injury in chronic diarrhea rats. The Dioscoreae Rhizoma starch displayed the most apparent effect on regulating intestinal microbiotas by increasing the abundance and diversity of microbiotas. At the genus level, there were 17 changed intestinal microbiotas in model rats, and the treatment with Dioscoreae Rhizoma starch regulated 11 microbiotas. Metabolomics analysis revealed that Dioscoreae Rhizoma starch could regulate abnormal fecal metabolites to alleviate diarrhea, and these metabolites are involved in phenylalanine, tyrosine, and tryptophan biosynthesis; tyrosine metabolism; vitamin B6 metabolism; and purine metabolism. This study will contribute to the further research and development of Dioscoreae Rhizoma starch.
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Affiliation(s)
- Qing Zhang
- School of PharmacyHenan University of Chinese MedicineZhengzhouChina
| | - Xu Zhang
- School of PharmacyHenan University of Chinese MedicineZhengzhouChina
| | - Qing Wang
- School of PharmacyHenan University of Chinese MedicineZhengzhouChina
| | - Suiqing Chen
- School of PharmacyHenan University of Chinese MedicineZhengzhouChina
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Shen L, Shen Y, You L, Zhang Y, Su Z, Peng G, Deng JL, Zhong Z, Yu S, Zong X, Wu X, Zhu Y, Cao S. Blood metabolomics reveals the therapeutic effect of Pueraria polysaccharide on calf diarrhea. BMC Vet Res 2023; 19:98. [PMID: 37516856 PMCID: PMC10386334 DOI: 10.1186/s12917-023-03662-9] [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: 09/22/2022] [Accepted: 07/18/2023] [Indexed: 07/31/2023] Open
Abstract
BACKGROUND Neonatal calf diarrhea (NCD) is typically treated with antibiotics, while long-term application of antibiotics induces drug resistance and antibiotic residues, ultimately decreasing feed efficiency. Pueraria polysaccharide (PPL) is a versatile antimicrobial, immunomodulatory, and antioxidative compound. This study aimed to compare the therapeutic efficacy of different doses of PPL (0.2, 0.4, 0.8 g/kg body weight (BW)) and explore the effect of plasma metabolites in diarrheal calves by the best dose of PPL. RESULTS PPL could effectively improve the daily weight gain, fecal score, and dehydration score, and the dosage of 0.4 g/kg BW could reach curative efficacy against calf diarrhea (with effective rates 100.00%). Metabolomic analysis suggested that diarrhea mainly affect the levels of taurocholate, DL-lactate, LysoPCs, and intestinal flora-related metabolites, trimethylamine N-oxide; however, PPL improved liver function and intestinal barrier integrity by modulating the levels of DL-lactate, LysoPC (18:0/0:0) and bilirubin, which eventually attenuated neonatal calf diarrhea. It also suggested that the therapeutic effect of PPL is related to those differential metabolites in diarrheal calves. CONCLUSIONS The results showed that 0.4 g/kg BW PPL could restore the clinical score of diarrhea calves by improving the blood indexes, biochemical indexes, and blood metabolites. And it is a potential medicine for the treatment of calf diarrhea.
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Affiliation(s)
- Liuhong Shen
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Yu Shen
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Liuchao You
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Yue Zhang
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
- Guangxi Innovates Medical Technology Co., Ltd. Lipu, Guangxi, 546600, China
| | - Zhetong Su
- Guangxi Innovates Medical Technology Co., Ltd. Lipu, Guangxi, 546600, China
| | - Guangneng Peng
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Jun-Liang Deng
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Zhijun Zhong
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Shumin Yu
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Xiaolan Zong
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Xiaofeng Wu
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Yingkun Zhu
- School of Agriculture & Food Science, University College Dublin, Belfield, Dublin, D04 V1W8, Ireland.
| | - Suizhong Cao
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, The Medical Research Center for Cow Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China.
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10
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Huang Y, Jiao J, Yao D, Guo F, Li Y. Altered fecal microbiome and metabolome profiles in rat models of short bowel syndrome. Front Microbiol 2023; 14:1185463. [PMID: 37362931 PMCID: PMC10289890 DOI: 10.3389/fmicb.2023.1185463] [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: 03/13/2023] [Accepted: 05/22/2023] [Indexed: 06/28/2023] Open
Abstract
Introduction Short bowel syndrome (SBS) is featured by impaired nutrients and fluids absorption due to massive small intestine resection. Gut dysbiosis has been implicated in SBS, this study aimed to characterize the metagenomic and metabolomic profiles of SBS and identify potential therapeutic targets. Methods Fecal samples from SBS and Sham rats (n = 8 per group) were collected for high-throughput metagenomic sequencing. Fecal metabolomics was measured by untargeted liquid chromatography-mass spectrometry. Results We found that the species-level α-diversity significantly decreased in SBS rats, accompanied by altered microbiome compositions. The beneficial anaerobes from Firmicutes and Bacteroidetes were depleted while microorganisms from Lactobacillus, Escherichia, Enterococcus, and Streptococcus were enriched in faces from SBS rats. LEfSe analysis identified 17 microbial species and 38 KEGG modules that were remarkably distinct between SBS and Sham rats. In total, 1,577 metabolites with known chemical identity were detected from all samples, among them, 276 metabolites were down-regulated and 224 metabolites were up-regulated in SBS group. The typical signatures of SBS fecal metabolome comprised reduced short-chain fatty acids and products of amino acid metabolism (indole derivatives and p-cresol), as well as altered bile acid spectrum. We revealed 215 robust associations between representative differentially abundant microbial species and metabolites, the species with the same changing trend tended to have a similar correlation with some certain metabolites. Conclusion The fecal microbiome and metabolome significantly altered in SBS. Our findings may lay the foundation for developing new strategies to facilitate intestinal adaptation in SBS patients.
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Affiliation(s)
- Yuhua Huang
- Department of General Surgery, Shanghai Ninth People’s Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Jian Jiao
- Department of General Surgery, Shanghai Ninth People’s Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Danhua Yao
- Department of General Surgery, Shanghai Ninth People’s Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Feilong Guo
- Department of General Surgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Yousheng Li
- Department of General Surgery, Shanghai Ninth People’s Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
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11
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Churchward MA, Michaud ER, Mullish BH, Miguens Blanco J, Garcia Perez I, Marchesi JR, Xu H, Kao D, Todd KG. Short-chain fatty and carboxylic acid changes associated with fecal microbiota transplant communally influence microglial inflammation. Heliyon 2023; 9:e16908. [PMID: 37484415 PMCID: PMC10360965 DOI: 10.1016/j.heliyon.2023.e16908] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 05/24/2023] [Accepted: 05/31/2023] [Indexed: 07/25/2023] Open
Abstract
The intestinal microbiota has been proposed to influence human mental health and cognition through the gut-brain axis. Individuals experiencing recurrent Clostridioides difficile infection (rCDI) frequently report depressive symptoms, which are improved after fecal microbiota transplantation (FMT); however, mechanisms underlying this association are poorly understood. Short-chain fatty acids and carboxylic acids (SCCA) produced by the intestinal microbiota cross the blood brain barrier and have been proposed to contribute to gut-brain communication. We hypothesized that changes in serum SCCA measured before and after successful FMT for rCDI influences the inflammatory response of microglia, the resident immune cells of the central nervous system. Serum SCCA were quantified using gas chromatography-mass spectroscopy from 38 patients who participated in a randomized trial comparing oral capsule-vs colonoscopy-delivered FMT for rCDI, and quality of life was assessed by SF-36 at baseline, 4, and 12 weeks after FMT treatment. Successful FMT was associated with improvements in mental and physical health, as well as significant changes in a number of circulating SCCA, including increased butyrate, 2-methylbutyrate, valerate, and isovalerate, and decreased 2-hydroxybutyrate. Primary cultured microglia were treated with SCCA and the response to a pro-inflammatory stimulus was measured. Treatment with a combination of SCCA based on the post-FMT serum profile, but not single SCCA species, resulted in significantly reduced inflammatory response including reduced cytokine release, reduced nitric oxide release, and accumulation of intracellular lipid droplets. This suggests that both levels and diversity of SCCA may be an important contributor to gut-brain communication.
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Affiliation(s)
- Matthew A. Churchward
- Department of Biological and Environmental Sciences, Concordia University of Edmonton, AB, T5B 4E4, Canada
- Neurochemical Research Unit, Department of Psychiatry, University of Alberta, Edmonton, AB, T6G 2R3, Canada
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, T6G 2R3, Canada
| | - Emily R. Michaud
- Neurochemical Research Unit, Department of Psychiatry, University of Alberta, Edmonton, AB, T6G 2R3, Canada
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, T6G 2R3, Canada
| | - Benjamin H. Mullish
- Division of Digestive Diseases, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, W2 1NY, UK
| | - Jesús Miguens Blanco
- Division of Digestive Diseases, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, W2 1NY, UK
| | - Isabel Garcia Perez
- Division of Digestive Diseases, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, W2 1NY, UK
| | - Julian R. Marchesi
- Division of Digestive Diseases, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, W2 1NY, UK
| | - Huiping Xu
- Department of Biostatistics and Health Data Science, Indiana University School of Medicine Indianapolis, IN, USA, 46202
| | - Dina Kao
- Division of Gastroenterology, Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, T6G 2R3, Canada
| | - Kathryn G. Todd
- Neurochemical Research Unit, Department of Psychiatry, University of Alberta, Edmonton, AB, T6G 2R3, Canada
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, T6G 2R3, Canada
- Department of Biomedical Engineering, University of Alberta, Edmonton, AB, T6G 2R3, Canada
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12
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Louca P, Meijnikman AS, Nogal A, Asnicar F, Attaye I, Vijay A, Kouraki A, Visconti A, Wong K, Berry SE, Leeming ER, Mompeo O, Tettamanzi F, Baleanu AF, Falchi M, Hadjigeorgiou G, Wolf J, Acherman YIZ, Van de Laar AW, Gerdes VEA, Michelotti GA, Franks PW, Segata N, Mangino M, Spector TD, Bulsiewicz WJ, Nieuwdorp M, Valdes AM, Menni C. The secondary bile acid isoursodeoxycholate correlates with post-prandial lipemia, inflammation, and appetite and changes post-bariatric surgery. Cell Rep Med 2023; 4:100993. [PMID: 37023745 PMCID: PMC10140478 DOI: 10.1016/j.xcrm.2023.100993] [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: 08/11/2022] [Revised: 10/12/2022] [Accepted: 03/14/2023] [Indexed: 04/08/2023]
Abstract
Primary and secondary bile acids (BAs) influence metabolism and inflammation, and the gut microbiome modulates levels of BAs. We systematically explore the host genetic, gut microbial, and habitual dietary contribution to a panel of 19 serum and 15 stool BAs in two population-based cohorts (TwinsUK, n = 2,382; ZOE PREDICT-1, n = 327) and assess changes post-bariatric surgery and after nutritional interventions. We report that BAs have a moderately heritable genetic component, and the gut microbiome accurately predicts their levels in serum and stool. The secondary BA isoursodeoxycholate (isoUDCA) can be explained mostly by gut microbes (area under the receiver operating characteristic curve [AUC] = ∼80%) and associates with post-prandial lipemia and inflammation (GlycA). Furthermore, circulating isoUDCA decreases significantly 1 year after bariatric surgery (β = -0.72, p = 1 × 10-5) and in response to fiber supplementation (β = -0.37, p < 0.03) but not omega-3 supplementation. In healthy individuals, isoUDCA fasting levels correlate with pre-meal appetite (p < 1 × 10-4). Our findings indicate an important role for isoUDCA in lipid metabolism, appetite, and, potentially, cardiometabolic risk.
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Affiliation(s)
- Panayiotis Louca
- Department of Twin Research & Genetic Epidemiology, King's College London, SE1 7EH London, UK
| | - Abraham S Meijnikman
- Department of (Experimental) Vascular Medicine, Amsterdam University Medical Centre (UMC), Amsterdam, the Netherlands
| | - Ana Nogal
- Department of Twin Research & Genetic Epidemiology, King's College London, SE1 7EH London, UK
| | | | - Ilias Attaye
- Department of (Experimental) Vascular Medicine, Amsterdam University Medical Centre (UMC), Amsterdam, the Netherlands
| | - Amrita Vijay
- Nottingham NIHR Biomedical Research Centre at the School of Medicine, University of Nottingham, NG5 1PB Nottingham, UK; Inflammation, Recovery and Injury Sciences, School of Medicine, University of Nottingham, NG5 1PB Nottingham, UK
| | - Afroditi Kouraki
- Nottingham NIHR Biomedical Research Centre at the School of Medicine, University of Nottingham, NG5 1PB Nottingham, UK; Inflammation, Recovery and Injury Sciences, School of Medicine, University of Nottingham, NG5 1PB Nottingham, UK
| | - Alessia Visconti
- Department of Twin Research & Genetic Epidemiology, King's College London, SE1 7EH London, UK
| | - Kari Wong
- Metabolon, Research Triangle Park, Morrisville, NC, USA
| | - Sarah E Berry
- Department of Nutritional Sciences, King's College London, London, UK
| | - Emily R Leeming
- Department of Twin Research & Genetic Epidemiology, King's College London, SE1 7EH London, UK
| | - Olatz Mompeo
- Department of Twin Research & Genetic Epidemiology, King's College London, SE1 7EH London, UK
| | - Francesca Tettamanzi
- Department of Twin Research & Genetic Epidemiology, King's College London, SE1 7EH London, UK
| | - Andrei-Florin Baleanu
- Department of Twin Research & Genetic Epidemiology, King's College London, SE1 7EH London, UK
| | - Mario Falchi
- Department of Twin Research & Genetic Epidemiology, King's College London, SE1 7EH London, UK
| | | | | | | | | | - Victor E A Gerdes
- Department of (Experimental) Vascular Medicine, Amsterdam University Medical Centre (UMC), Amsterdam, the Netherlands
| | | | - Paul W Franks
- Lund University Diabetes Center, Lund University, Malmö, Sweden; Department of Clinical Sciences, Lund University, Malmö, Sweden
| | - Nicola Segata
- Department CIBIO, University of Trento, Trento, Italy
| | - Massimo Mangino
- Department of Twin Research & Genetic Epidemiology, King's College London, SE1 7EH London, UK; NIHR Biomedical Research Centre at Guy's and St Thomas' Foundation Trust, SE1 9RT London, UK
| | - Tim D Spector
- Department of Twin Research & Genetic Epidemiology, King's College London, SE1 7EH London, UK
| | | | - Max Nieuwdorp
- Department of (Experimental) Vascular Medicine, Amsterdam University Medical Centre (UMC), Amsterdam, the Netherlands
| | - Ana M Valdes
- Nottingham NIHR Biomedical Research Centre at the School of Medicine, University of Nottingham, NG5 1PB Nottingham, UK; Inflammation, Recovery and Injury Sciences, School of Medicine, University of Nottingham, NG5 1PB Nottingham, UK.
| | - Cristina Menni
- Department of Twin Research & Genetic Epidemiology, King's College London, SE1 7EH London, UK.
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13
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Mori H, Svegliati Baroni G, Marzioni M, Di Nicola F, Santori P, Maroni L, Abenavoli L, Scarpellini E. Farnesoid X Receptor, Bile Acid Metabolism, and Gut Microbiota. Metabolites 2022; 12:647. [PMID: 35888771 PMCID: PMC9320384 DOI: 10.3390/metabo12070647] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 07/01/2022] [Accepted: 07/01/2022] [Indexed: 02/04/2023] Open
Abstract
Obesity, type 2 diabetes, and non-alcoholic fatty liver disease (NAFLD) are characterized by the concepts of lipo- and glucotoxicity. NAFLD is characterized by the accumulation of different lipidic species within the hepatocytes. Bile acids (BA), derived from cholesterol, and conjugated and stored in the gallbladder, help the absorption/processing of lipids, and modulate host inflammatory responses and gut microbiota (GM) composition. The latter is the new "actor" that links the GI tract and liver in NAFLD pathogenesis. In fact, the discovery and mechanistic characterization of hepatic and intestinal farnesoid X receptor (FXR) shed new light on the gut-liver axis. We conducted a search on the main medical databases for original articles, reviews, meta-analyses of randomized clinical trials, and case series using the following keywords, their acronyms, and their associations: farnesoid X receptor, bile acids metabolism, gut microbiota, dysbiosis, and liver steatosis. Findings on the synthesis, metabolism, and conjugation processes of BAs, and their action on FXR, change the understanding of NAFLD physiopathology. In detail, BAs act as ligands to several FXRs with GM modulation. On the other hand, the BAs pool is modulated by GM, thus, regulating FXRs functioning in the frame of liver fat deposition and fibrosis development. In conclusion, BAs passed from their role of simple lipid absorption and metabolism agents to messengers between the gut and liver, modulated by GM.
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Affiliation(s)
- Hideki Mori
- T.A.R.G.I.D., Gasthuisberg University Hospital, KU Leuven, Herestraat 49, 3000 Leuven, Belgium;
| | | | - Marco Marzioni
- Gastroenterology Clinic; Università Politecnica delle Marche, 60121 Ancona, Italy; (M.M.); (L.M.)
| | - Francesca Di Nicola
- Hepatology Outpatient Clinic and Internal Medicine Unit, “Madonna del Soccorso” General Hospital, 63074 San Benedetto del Tronto, Italy; (F.D.N.); (P.S.)
| | - Pierangelo Santori
- Hepatology Outpatient Clinic and Internal Medicine Unit, “Madonna del Soccorso” General Hospital, 63074 San Benedetto del Tronto, Italy; (F.D.N.); (P.S.)
| | - Luca Maroni
- Gastroenterology Clinic; Università Politecnica delle Marche, 60121 Ancona, Italy; (M.M.); (L.M.)
| | - Ludovico Abenavoli
- Department of Health Sciences, University “Magna Græcia”, 88100 Catanzaro, Italy;
| | - Emidio Scarpellini
- T.A.R.G.I.D., Gasthuisberg University Hospital, KU Leuven, Herestraat 49, 3000 Leuven, Belgium;
- Hepatology Outpatient Clinic and Internal Medicine Unit, “Madonna del Soccorso” General Hospital, 63074 San Benedetto del Tronto, Italy; (F.D.N.); (P.S.)
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