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Mo Y, Li Y, Liang S, Wang W, Zhang H, Zhao J, Xu M, Zhang X, Cao H, Xie S, Lv Y, Wu Y, Zhang Z, Yang W. Urinary enterolignans and enterolignan-predicting microbial species are favourably associated with liver fat and other obesity markers. Food Funct 2024; 15:7305-7313. [PMID: 38874113 DOI: 10.1039/d3fo05632e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2024]
Abstract
Aims: Plant-derived lignans may protect against obesity, while their bioactivity needs gut microbial conversion to enterolignans. We used repeated measures to identify enterolignan-predicting microbial species and investigate whether enterolignans and enterolignan-predicting microbial species are associated with obesity. Methods: Urinary enterolignans, fecal microbiota, body weight, height, and circumferences of the waist (WC) and hips (HC) were repeatedly measured at the baseline and after 1 year in 305 community-dwelling adults in Huoshan, China. Body composition and liver fat [indicated by the controlled attenuation parameter (CAP)] were measured after 1 year. Multivariate-adjusted linear models and linear mixed-effects models were used to analyze single and repeated measurements, respectively. Results: Enterolactone and enterodiol levels were both inversely associated with the waist-to-hip ratio, body fat mass (BFM), visceral fat level (VFL), and liver fat accumulation (all P < 0.05). Enterolactone levels were also associated with lower WC (β = -0.0035 and P = 0.013) and HC (β = -0.0028 and P = 0.044). We identified multiple bacterial genera whose relative abundance was positively associated with the levels of enterolactone (26 genera) and enterodiol (22 genera, all P false discovery rate < 0.05), and constructed the enterolactone-predicting microbial score and enterodiol-predicting microbial score to reflect the overall enterolignan-producing potential of the host gut microbiota. Both these scores were associated with lower body weight and CAP (all P < 0.05). The enterolactone-predicting microbial score was also inversely associated with the BFM (β = -0.1128 and P = 0.027) and VFL (β = -0.1265 and P = 0.044). Conclusion: Our findings support that modulating the host gut microbiome could be a potential strategy to prevent obesity by enhancing the production of enterolignans.
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Affiliation(s)
- Yufeng Mo
- Department of Nutrition, Center for Big Data and Population Health of IHM, School of Public Health, Anhui Medical University, Hefei, Anhui, China
- Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, Anhui, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui, China
- Anhui Provincial Key Laboratory of Population Health and Aristogenics/Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei, Anhui, China
| | - Yamin Li
- Department of Nutrition, Center for Big Data and Population Health of IHM, School of Public Health, Anhui Medical University, Hefei, Anhui, China
| | - Shaoxian Liang
- Department of Nutrition, Center for Big Data and Population Health of IHM, School of Public Health, Anhui Medical University, Hefei, Anhui, China
| | - Wuqi Wang
- Department of Nutrition, Center for Big Data and Population Health of IHM, School of Public Health, Anhui Medical University, Hefei, Anhui, China
| | - Honghua Zhang
- Department of Nutrition, Center for Big Data and Population Health of IHM, School of Public Health, Anhui Medical University, Hefei, Anhui, China
| | - Jiajia Zhao
- Department of Nutrition, Center for Big Data and Population Health of IHM, School of Public Health, Anhui Medical University, Hefei, Anhui, China
| | - Mengting Xu
- Department of Nutrition, Center for Big Data and Population Health of IHM, School of Public Health, Anhui Medical University, Hefei, Anhui, China
| | - Xiaoyu Zhang
- Department of Physical Examination Center, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Hongjuan Cao
- Department of Chronic Non-communicable Diseases Prevention and Control, Lu'an Municipal Center for Disease Control and Prevention, Lu'an, Anhui, China
| | - Shaoyu Xie
- Department of Chronic Non-communicable Diseases Prevention and Control, Lu'an Municipal Center for Disease Control and Prevention, Lu'an, Anhui, China
| | - Yaning Lv
- Technology Center of Hefei Customs, and Anhui Province Key Laboratory of Analysis and Detection for Food Safety, Hefei, Anhui, China
| | - Yaqin Wu
- Technology Center of Hefei Customs, and Anhui Province Key Laboratory of Analysis and Detection for Food Safety, Hefei, Anhui, China
| | - Zhuang Zhang
- Department of Nutrition, Center for Big Data and Population Health of IHM, School of Public Health, Anhui Medical University, Hefei, Anhui, China
| | - Wanshui Yang
- Department of Nutrition, Center for Big Data and Population Health of IHM, School of Public Health, Anhui Medical University, Hefei, Anhui, China
- Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, Anhui, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui, China
- Anhui Provincial Key Laboratory of Population Health and Aristogenics/Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei, Anhui, China
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Weiner CM, Khan SE, Leong C, Ranadive SM, Campbell SC, Howard JT, Heffernan KS. Association of enterolactone with blood pressure and hypertension risk in NHANES. PLoS One 2024; 19:e0302254. [PMID: 38743749 PMCID: PMC11093351 DOI: 10.1371/journal.pone.0302254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 03/30/2024] [Indexed: 05/16/2024] Open
Abstract
The gut microbiome may affect overall cardiometabolic health. Enterolactone is an enterolignan reflective of dietary lignan intake and gut microbiota composition and diversity that can be measured in the urine. The purpose of this study was to examine the association between urinary enterolactone concentration as a reflection of gut health and blood pressure/risk of hypertension in a large representative sample from the US population. This analysis was conducted using data from the National Health and Nutrition Examination Survey (NHANES) collected from January 1999 through December 2010. Variables of interest included participant characteristics (including demographic, anthropometric and social/environmental factors), resting blood pressure and hypertension history, and urinary enterolactone concentration. 10,637 participants (45 years (SE = 0.3), 51.7% (SE = 0.6%) were female) were included in analyses. In multivariable models adjusted for demographic, socioeconomic and behavioral/environmental covariates, each one-unit change in log-transformed increase in enterolactone was associated with a 0.738 point (95% CI: -0.946, -0.529; p<0.001) decrease in systolic blood pressure and a 0.407 point (95% CI: -0.575, -0.239; p<0.001) decrease in diastolic blood pressure. Moreover, in fully adjusted models, each one-unit change in log-transformed enterolactone was associated with 8.2% lower odds of hypertension (OR = 0.918; 95% CI: 0.892, 0.944; p<0.001). Urinary enterolactone, an indicator of gut microbiome health, is inversely associated with blood pressure and hypertension risk in a nationally representative sample of U.S. adults.
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Affiliation(s)
- Cynthia M. Weiner
- Department of Kinesiology, University of Maryland, College Park, Maryland, United States of America
| | - Shannon E. Khan
- Department of Kinesiology, University of Maryland, College Park, Maryland, United States of America
| | - Caleb Leong
- Department of Public Health, University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas, United States of America
| | - Sushant M. Ranadive
- Department of Kinesiology, University of Maryland, College Park, Maryland, United States of America
| | - Sara C. Campbell
- Department of Kinesiology and Health, Rutgers University, New Brunswick, New Jersey, United States of America
| | - Jeffrey T. Howard
- Department of Public Health, University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas, United States of America
| | - Kevin S. Heffernan
- Department of Exercise Science, Syracuse University, Syracuse, NY, United States of America
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3
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Whitfield-Cargile CM, Chung HC, Coleman MC, Cohen ND, Chamoun-Emanuelli AM, Ivanov I, Goldsby JS, Davidson LA, Gaynanova I, Ni Y, Chapkin RS. Integrated analysis of gut metabolome, microbiome, and exfoliome data in an equine model of intestinal injury. MICROBIOME 2024; 12:74. [PMID: 38622632 PMCID: PMC11017594 DOI: 10.1186/s40168-024-01785-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 02/29/2024] [Indexed: 04/17/2024]
Abstract
BACKGROUND The equine gastrointestinal (GI) microbiome has been described in the context of various diseases. The observed changes, however, have not been linked to host function and therefore it remains unclear how specific changes in the microbiome alter cellular and molecular pathways within the GI tract. Further, non-invasive techniques to examine the host gene expression profile of the GI mucosa have been described in horses but not evaluated in response to interventions. Therefore, the objectives of our study were to (1) profile gene expression and metabolomic changes in an equine model of non-steroidal anti-inflammatory drug (NSAID)-induced intestinal inflammation and (2) apply computational data integration methods to examine host-microbiota interactions. METHODS Twenty horses were randomly assigned to 1 of 2 groups (n = 10): control (placebo paste) or NSAID (phenylbutazone 4.4 mg/kg orally once daily for 9 days). Fecal samples were collected on days 0 and 10 and analyzed with respect to microbiota (16S rDNA gene sequencing), metabolomic (untargeted metabolites), and host exfoliated cell transcriptomic (exfoliome) changes. Data were analyzed and integrated using a variety of computational techniques, and underlying regulatory mechanisms were inferred from features that were commonly identified by all computational approaches. RESULTS Phenylbutazone induced alterations in the microbiota, metabolome, and host transcriptome. Data integration identified correlation of specific bacterial genera with expression of several genes and metabolites that were linked to oxidative stress. Concomitant microbiota and metabolite changes resulted in the initiation of endoplasmic reticulum stress and unfolded protein response within the intestinal mucosa. CONCLUSIONS Results of integrative analysis identified an important role for oxidative stress, and subsequent cell signaling responses, in a large animal model of GI inflammation. The computational approaches for combining non-invasive platforms for unbiased assessment of host GI responses (e.g., exfoliomics) with metabolomic and microbiota changes have broad application for the field of gastroenterology. Video Abstract.
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Affiliation(s)
- C M Whitfield-Cargile
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, TX, USA.
| | - H C Chung
- Department of Statistics, College of Arts & Sciences, Texas A&M University, College Station, TX, USA
- Mathematics & Statistics Department, College of Science, University of North Carolina Charlotte, Charlotte, NC, USA
| | - M C Coleman
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - N D Cohen
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - A M Chamoun-Emanuelli
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - I Ivanov
- Department of Veterinary Physiology and Pharmacology, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - J S Goldsby
- Program in Integrative Nutrition & Complex Diseases, College of Agriculture & Life Sciences, Texas A&M University, College Station, TX, USA
| | - L A Davidson
- Program in Integrative Nutrition & Complex Diseases, College of Agriculture & Life Sciences, Texas A&M University, College Station, TX, USA
| | - I Gaynanova
- Department of Statistics, College of Arts & Sciences, Texas A&M University, College Station, TX, USA
| | - Y Ni
- Department of Statistics, College of Arts & Sciences, Texas A&M University, College Station, TX, USA
| | - R S Chapkin
- Program in Integrative Nutrition & Complex Diseases, College of Agriculture & Life Sciences, Texas A&M University, College Station, TX, USA
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Wu H, Zhang XH, Wang LP, Tian HD, Liu GR, Yang DH, Liu SL. Successful Outcome of a Patient with Concomitant Pancreatic and Renal Carcinoma Receiving Secoisolariciresinol Diglucoside Therapy Alone: A Case Report. Int Med Case Rep J 2024; 17:167-175. [PMID: 38504721 PMCID: PMC10949998 DOI: 10.2147/imcrj.s446184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 03/06/2024] [Indexed: 03/21/2024] Open
Abstract
Introduction Pancreatic cancer (PC) is among the deadliest malignancies. Kidney cancer (KC) is a common malignancy globally. Chemo- or radio-therapies are not very effective to control PC or KC, and overdoses often cause severe site reactions to the patients. As a result, novel treatment strategies with high efficacy but without toxic side effects are urgently desired. Secoisolariciresinol diglucoside (SDG) belongs to plant lignans with potential anticancer activities, but clinical evidence is not available in PC or KC treatment. Patient Concerns We report a rare case of an 83-year-old female patient with pancreatic and kidney occupying lesions that lacked the conditions to receive surgery or chemo- or radiotherapy. Diagnosis Pancreatic and kidney cancers. Interventions We gave dietary SDG to the patient as the only therapeutics. Outcomes SDG effectively halted progression of both PC and KC. All clinical manifestations, including bad insomnia, loss of appetite, stomach symptoms, and skin itching over the whole body, all disappeared. The initial massive macroscopic hematuria became microscopic and infrequent, and other laboratory results also gradually returned to normal. Most of the cancer biomarkers, initially high such as CEA, CA199, CA724, CA125, came down rapidly, among which CA199 changed most radically. This patient has had progression-free survival of one year so far. Conclusion These results demonstrate the potent inhibitory effects of SDG on PC and KC of this patient and provide promising novel therapeutics for refractory malignant tumors.
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Affiliation(s)
- Hao Wu
- Genomics Research Center (State-Province Key Laboratory of Biomedicine-Pharmaceutics of China), College of Pharmacy, Harbin Medical University, Harbin, People’s Republic of China
- Key Laboratory of Tumor Biotherapy of Heilongjiang Province, Harbin Medical University Cancer Hospital, Harbin, People’s Republic of China
- Key Laboratory of Gut Microbiota and Pharmacogenomics of Heilongjiang Province, Harbin Medical University, Harbin, People’s Republic of China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases, Harbin, People’s Republic of China
- Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, People’s Republic of China
- Translational Medicine Research and Cooperation Center of Northern China, Harbin Medical University, Harbin, People’s Republic of China
| | - Xing-Hua Zhang
- Genomics Research Center (State-Province Key Laboratory of Biomedicine-Pharmaceutics of China), College of Pharmacy, Harbin Medical University, Harbin, People’s Republic of China
- Key Laboratory of Gut Microbiota and Pharmacogenomics of Heilongjiang Province, Harbin Medical University, Harbin, People’s Republic of China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases, Harbin, People’s Republic of China
- Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, People’s Republic of China
- Translational Medicine Research and Cooperation Center of Northern China, Harbin Medical University, Harbin, People’s Republic of China
| | - Li-Ping Wang
- KangYuan Hospital, Harbin, People’s Republic of China
- Xun-Qi Medicine Clinic, Harbin, People’s Republic of China
| | - Hong-Da Tian
- Genomics Research Center (State-Province Key Laboratory of Biomedicine-Pharmaceutics of China), College of Pharmacy, Harbin Medical University, Harbin, People’s Republic of China
- Key Laboratory of Gut Microbiota and Pharmacogenomics of Heilongjiang Province, Harbin Medical University, Harbin, People’s Republic of China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases, Harbin, People’s Republic of China
- Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, People’s Republic of China
- Translational Medicine Research and Cooperation Center of Northern China, Harbin Medical University, Harbin, People’s Republic of China
| | - Gui-Rong Liu
- Genomics Research Center (State-Province Key Laboratory of Biomedicine-Pharmaceutics of China), College of Pharmacy, Harbin Medical University, Harbin, People’s Republic of China
- Key Laboratory of Gut Microbiota and Pharmacogenomics of Heilongjiang Province, Harbin Medical University, Harbin, People’s Republic of China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases, Harbin, People’s Republic of China
- Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, People’s Republic of China
- Translational Medicine Research and Cooperation Center of Northern China, Harbin Medical University, Harbin, People’s Republic of China
| | - Dong-Hui Yang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, People’s Republic of China
| | - Shu-Lin Liu
- Genomics Research Center (State-Province Key Laboratory of Biomedicine-Pharmaceutics of China), College of Pharmacy, Harbin Medical University, Harbin, People’s Republic of China
- Key Laboratory of Gut Microbiota and Pharmacogenomics of Heilongjiang Province, Harbin Medical University, Harbin, People’s Republic of China
- National Key Laboratory of Frigid Zone Cardiovascular Diseases, Harbin, People’s Republic of China
- Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, People’s Republic of China
- Translational Medicine Research and Cooperation Center of Northern China, Harbin Medical University, Harbin, People’s Republic of China
- KangYuan Hospital, Harbin, People’s Republic of China
- Xun-Qi Medicine Clinic, Harbin, People’s Republic of China
- Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, Canada
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Li H, Liang J, Han M, Gao Z. Polyphenols synergistic drugs to ameliorate non-alcoholic fatty liver disease via signal pathway and gut microbiota: A review. J Adv Res 2024:S2090-1232(24)00091-2. [PMID: 38471648 DOI: 10.1016/j.jare.2024.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 03/04/2024] [Accepted: 03/07/2024] [Indexed: 03/14/2024] Open
Abstract
BACKGROUND Non-alcoholic fatty liver disease (NAFLD) is a common chronic liver disease with an increasing incidence worldwide. Single drug therapy may have toxic side effects and disrupt gut microbiota balance. Polyphenols are widely used in disease intervention due to their distinctive nutritional properties and medicinal value, which a potential gut microbiota modulator. However, there is a lack of comprehensive review to explore the efficacy and mechanism of combined therapy with drugs and polyphenols for NAFLD. AIM OF REVIEW Based on this, this review firstly discusses the link between NAFLD and gut microbiota, and outlines the effects of polyphenols and drugs on gut microbiota. Secondly, it examined recent advances in the treatment and intervention of NAFLD with drugs and polyphenols and the therapeutic effect of the combination of the two. Finally, we highlight the underlying mechanisms of polyphenol combined drug therapy in NAFLD. This is mainly in terms of signaling pathways (NF-κB, AMPK, Nrf2, JAK/STAT, PPAR, SREBP-1c, PI3K/Akt and TLR) and gut microbiota. Furthermore, some emerging mechanisms such as microRNA potential biomarker therapies may provide therapeutic avenues for NAFLD. KEY SCIENTIFIC CONCEPTS OF REVIEW Drawing inspiration from combination drug strategies, the use of active substances in combination with drugs for NAFLD intervention holds transformative and prospective potential, both improve NAFLD and restore gut microbiota balance while reducing the required drug dosage. This review systematically discusses the bidirectional interactions between gut microbiota and NAFLD, and summarizes the potential mechanisms of polyphenol synergistic drugs in the treatment of NAFLD by modulating signaling pathways and gut microbiota. Future researches should develop multi-omics technology to identify patients who benefit from polyphenols combination drugs and devising individualized treatment plans to enhance its therapeutic effect.
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Affiliation(s)
- Hongcai Li
- College of Food Science and Engineering, Northwest A&F University, 712100 Yangling, Shaanxi, People's Republic of China
| | - Jingjing Liang
- College of Food Science and Engineering, Northwest A&F University, 712100 Yangling, Shaanxi, People's Republic of China
| | - Mengzhen Han
- College of Food Science and Engineering, Northwest A&F University, 712100 Yangling, Shaanxi, People's Republic of China
| | - Zhenpeng Gao
- College of Food Science and Engineering, Northwest A&F University, 712100 Yangling, Shaanxi, People's Republic of China.
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Wu D, Thompson LU, Comelli EM. Cecal microbiota and mammary gland microRNA signatures are related and modifiable by dietary flaxseed with implications for breast cancer risk. Microbiol Spectr 2024; 12:e0229023. [PMID: 38059614 PMCID: PMC10783090 DOI: 10.1128/spectrum.02290-23] [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: 06/04/2023] [Accepted: 10/29/2023] [Indexed: 12/08/2023] Open
Abstract
IMPORTANCE Breast cancer is a leading cause of cancer mortality worldwide. There is a growing interest in using dietary approaches, including flaxseed (FS) and its oil and lignan components, to mitigate breast cancer risk. Importantly, there is recognition that pubertal processes and lifestyle, including diet, are important for breast health throughout life. Mechanisms remain incompletely understood. Our research uncovers a link between mammary gland miRNA expression and the gut microbiota in young female mice. We found that this relationship is modifiable via a dietary intervention. Using data from The Cancer Genome Atlas, we also show that the expression of miRNAs involved in these relationships is altered in breast cancer in humans. These findings highlight a role for the gut microbiome as a modulator, and thus a target, of interventions aiming at reducing breast cancer risk. They also provide foundational knowledge to explore the effects of early life interventions and mechanisms programming breast health.
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Affiliation(s)
- Diana Wu
- Department of Nutritional Sciences, University of Toronto, Faculty of Medicine, Toronto, Canada
| | - Lilian U. Thompson
- Department of Nutritional Sciences, University of Toronto, Faculty of Medicine, Toronto, Canada
| | - Elena M. Comelli
- Department of Nutritional Sciences, University of Toronto, Faculty of Medicine, Toronto, Canada
- Joannah and Brian Lawson Centre for Child Nutrition, University of Toronto, Toronto, Canada
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Ilomäki MA, Polari L, Stenvall CGA, Tayyab M, Kähärä K, Ridge KM, Toivola DM. Defining a timeline of colon pathologies after keratin 8 loss: rapid crypt elongation and diarrhea are followed by epithelial erosion and cell exfoliation. Am J Physiol Gastrointest Liver Physiol 2024; 326:G67-G77. [PMID: 37962942 PMCID: PMC11208023 DOI: 10.1152/ajpgi.00140.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 10/27/2023] [Accepted: 10/28/2023] [Indexed: 11/15/2023]
Abstract
Keratins are epithelial intermediate filament proteins that play a crucial role in cellular stress protection, with K8 being the most abundant in the colon. The intestinal epithelial-specific K8-deficient mouse model (K8flox/flox;Villin-Cre) exhibits characteristics of inflammatory bowel disease, including diarrhea, crypt erosion, hyperproliferation, and decreased barrier function. Nevertheless, the order in which these events occur and whether they are a direct cause of K8 loss or a consequence of one event inducing another remains unexplored. Increased knowledge about early events in the disruption of colon epithelial integrity would help to understand the early pathology of inflammatory and functional colon disorders and develop preclinical models and diagnostics of colonic diseases. Here, we aimed to characterize the order of physiological events after Krt8 loss by utilizing K8flox/flox;Villin-CreERt2 mice with tamoxifen-inducible Krt8 deletion in intestinal epithelial cells, and assess stool analysis as a noninvasive method to monitor real-time gene expression changes following Krt8 loss. K8 protein was significantly decreased within a day after induction, followed by its binding partners, K18 and K19 from day 4 onward. The sequential colonic K8 downregulation in adult mice leads to immediate diarrhea and crypt elongation with activation of proliferation signaling, followed by crypt loss and increased neutrophil activity within 6-8 days, highlighting impaired water balance and crypt elongation as the earliest colonic changes upon Krt8 loss. Furthermore, epithelial gene expression patterns were comparable between colon tissue and stool samples, demonstrating the feasibility of noninvasive monitoring of gut epithelia in preclinical research utilizing Cre-LoxP-based intestinal disease models.NEW & NOTEWORTHY Understanding the order in which physiological and molecular events occur helps to recognize the onset of diseases and improve their preclinical models. We utilized Cre-Lox-based inducible keratin 8 deletion in mouse intestinal epithelium to characterize the earliest events after keratin 8 loss leading to colitis. These include diarrhea and crypt elongation, followed by erosion and neutrophil activity. Our results also support noninvasive methodology for monitoring colon diseases in preclinical models.
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Affiliation(s)
- Maria A Ilomäki
- Cell Biology, Biosciences, Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland
- InFLAMES Research Flagship Center, Åbo Akademi University, Turku, Finland
| | - Lauri Polari
- Cell Biology, Biosciences, Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland
- InFLAMES Research Flagship Center, Åbo Akademi University, Turku, Finland
| | - Carl-Gustaf A Stenvall
- Cell Biology, Biosciences, Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland
- InFLAMES Research Flagship Center, Åbo Akademi University, Turku, Finland
| | - Mina Tayyab
- Cell Biology, Biosciences, Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland
- InFLAMES Research Flagship Center, Åbo Akademi University, Turku, Finland
| | - Kirah Kähärä
- Cell Biology, Biosciences, Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland
| | - Karen M Ridge
- Division of Pulmonary and Critical Care Medicine, Northwestern University, Chicago, Illinois, United States
| | - Diana M Toivola
- Cell Biology, Biosciences, Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland
- InFLAMES Research Flagship Center, Åbo Akademi University, Turku, Finland
- Turku Center for Disease Modeling, University of Turku, Turku, Finland
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8
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McLeod A, Wolf P, Chapkin RS, Davidson LA, Ivanov I, Berbaum M, Williams LR, Gaskins HR, Ridlon J, Sanchez-Flack J, Blumstein L, Schiffer L, Hamm A, Cares K, Antonic M, Bernabe BP, Fitzgibbon M, Tussing-Humphreys L. Design of the Building Research in CRC prevention (BRIDGE-CRC) trial: a 6-month, parallel group Mediterranean diet and weight loss randomized controlled lifestyle intervention targeting the bile acid-gut microbiome axis to reduce colorectal cancer risk among African American/Black adults with obesity. Trials 2023; 24:113. [PMID: 36793105 PMCID: PMC9930092 DOI: 10.1186/s13063-023-07115-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 01/23/2023] [Indexed: 02/17/2023] Open
Abstract
BACKGROUND Among all racial/ethnic groups, people who identify as African American/Blacks have the second highest colorectal cancer (CRC) incidence in the USA. This disparity may exist because African American/Blacks, compared to other racial/ethnic groups, have a higher prevalence of risk factors for CRC, including obesity, low fiber consumption, and higher intakes of fat and animal protein. One unexplored, underlying mechanism of this relationship is the bile acid-gut microbiome axis. High saturated fat, low fiber diets, and obesity lead to increases in tumor promoting secondary bile acids. Diets high in fiber, such as a Mediterranean diet, and intentional weight loss may reduce CRC risk by modulating the bile acid-gut microbiome axis. The purpose of this study is to test the impact of a Mediterranean diet alone, weight loss alone, or both, compared to typical diet controls on the bile acid-gut microbiome axis and CRC risk factors among African American/Blacks with obesity. Because weight loss or a Mediterranean diet alone can reduce CRC risk, we hypothesize that weight loss plus a Mediterranean diet will reduce CRC risk the most. METHODS This randomized controlled lifestyle intervention will randomize 192 African American/Blacks with obesity, aged 45-75 years to one of four arms: Mediterranean diet, weight loss, weight loss plus Mediterranean diet, or typical diet controls, for 6 months (48 per arm). Data will be collected at baseline, mid-study, and study end. Primary outcomes include total circulating and fecal bile acids, taurine-conjugated bile acids, and deoxycholic acid. Secondary outcomes include body weight, body composition, dietary change, physical activity, metabolic risk, circulating cytokines, gut microbial community structure and composition, fecal short-chain fatty acids, and expression levels of genes from exfoliated intestinal cells linked to carcinogenesis. DISCUSSION This study will be the first randomized controlled trial to examine the effects of a Mediterranean diet, weight loss, or both on bile acid metabolism, the gut microbiome, and intestinal epithelial genes associated with carcinogenesis. This approach to CRC risk reduction may be especially important among African American/Blacks given their higher risk factor profile and increased CRC incidence. TRIAL REGISTRATION ClinicalTrials.gov NCT04753359 . Registered on 15 February 2021.
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Affiliation(s)
- Andrew McLeod
- grid.185648.60000 0001 2175 0319Institute for Health Research and Policy, University of Illinois Chicago (UIC), Chicago, IL USA
| | - Patricia Wolf
- grid.169077.e0000 0004 1937 2197Department of Nutrition Science, Purdue University, West Lafayette, IN USA
| | - Robert S. Chapkin
- grid.264756.40000 0004 4687 2082Department of Nutrition, Program in Integrative Nutrition & Complex Diseases, and Center for Environmental Health Research, Texas A&M University, College Station, TX USA
| | - Laurie A. Davidson
- grid.264756.40000 0004 4687 2082Department of Nutrition, Program in Integrative Nutrition & Complex Diseases, and Center for Environmental Health Research, Texas A&M University, College Station, TX USA
| | - Ivan Ivanov
- grid.264756.40000 0004 4687 2082Department of Nutrition, Program in Integrative Nutrition & Complex Diseases, and Center for Environmental Health Research, Texas A&M University, College Station, TX USA ,grid.264756.40000 0004 4687 2082Department of Veterinary Physiology & Pharmacology, and Center for Environmental Health Research, Texas A&M University, College Station, TX USA
| | - Michael Berbaum
- grid.185648.60000 0001 2175 0319Institute for Health Research and Policy, University of Illinois Chicago (UIC), Chicago, IL USA
| | - Lauren R. Williams
- grid.185648.60000 0001 2175 0319Mile Square Health Center, University of Illinois Chicago, Chicago, IL USA
| | - H. Rex Gaskins
- grid.35403.310000 0004 1936 9991Department of Animal Sciences, University of Illinois Urbana-Champaign, Urbana, IL USA ,grid.35403.310000 0004 1936 9991Division of Nutritional Sciences, University of Illinois Urbana-Champaign, Urbana, IL USA ,grid.35403.310000 0004 1936 9991Carl R. Woese Institute for Genomic Biology, University of Illinois Urbana-Champaign, Urbana, IL USA ,grid.35403.310000 0004 1936 9991Cancer Center at Illinois, University of Illinois Urbana-Champaign, Urbana, IL USA ,grid.35403.310000 0004 1936 9991Department of Biomedical and Translational Sciences, University of Illinois Urbana-Champaign, Urbana, IL USA ,grid.35403.310000 0004 1936 9991Department of Pathobiology, University of Illinois Urbana-Champaign, Urbana, IL USA
| | - Jason Ridlon
- grid.35403.310000 0004 1936 9991Department of Animal Sciences, University of Illinois Urbana-Champaign, Urbana, IL USA ,grid.35403.310000 0004 1936 9991Division of Nutritional Sciences, University of Illinois Urbana-Champaign, Urbana, IL USA ,grid.35403.310000 0004 1936 9991Carl R. Woese Institute for Genomic Biology, University of Illinois Urbana-Champaign, Urbana, IL USA ,grid.35403.310000 0004 1936 9991Cancer Center at Illinois, University of Illinois Urbana-Champaign, Urbana, IL USA
| | - Jen Sanchez-Flack
- grid.185648.60000 0001 2175 0319Institute for Health Research and Policy, University of Illinois Chicago (UIC), Chicago, IL USA ,grid.185648.60000 0001 2175 0319Department of Pediatrics, University of Illinois Chicago, Chicago, IL USA ,grid.185648.60000 0001 2175 0319University of Illinois Cancer Center, University of Illinois Chicago, Chicago, IL USA
| | - Lara Blumstein
- grid.185648.60000 0001 2175 0319Institute for Health Research and Policy, University of Illinois Chicago (UIC), Chicago, IL USA
| | - Linda Schiffer
- grid.185648.60000 0001 2175 0319Institute for Health Research and Policy, University of Illinois Chicago (UIC), Chicago, IL USA
| | - Alyshia Hamm
- grid.185648.60000 0001 2175 0319Department of Kinesiology and Nutrition, University of Illinois Chicago, Chicago, IL USA
| | - Kate Cares
- grid.185648.60000 0001 2175 0319Department of Kinesiology and Nutrition, University of Illinois Chicago, Chicago, IL USA
| | - Mirjana Antonic
- grid.185648.60000 0001 2175 0319Institute for Health Research and Policy, University of Illinois Chicago (UIC), Chicago, IL USA
| | - Beatriz Penalver Bernabe
- grid.185648.60000 0001 2175 0319Department of Biomedical Engineering, University of Illinois Chicago, Chicago, IL USA
| | - Marian Fitzgibbon
- Institute for Health Research and Policy, University of Illinois Chicago (UIC), Chicago, IL, USA. .,Department of Pediatrics, University of Illinois Chicago, Chicago, IL, USA. .,University of Illinois Cancer Center, University of Illinois Chicago, Chicago, IL, USA.
| | - Lisa Tussing-Humphreys
- Institute for Health Research and Policy, University of Illinois Chicago (UIC), Chicago, IL, USA. .,University of Illinois Cancer Center, University of Illinois Chicago, Chicago, IL, USA. .,Department of Kinesiology and Nutrition, University of Illinois Chicago, Chicago, IL, USA.
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9
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Sain A, Kandasamy T, Naskar D. Targeting UNC-51-like kinase 1 and 2 by lignans to modulate autophagy: possible implications in metastatic colorectal cancer. Mol Divers 2023; 27:27-43. [PMID: 35192112 DOI: 10.1007/s11030-022-10399-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 01/31/2022] [Indexed: 02/08/2023]
Abstract
Colorectal cancer (CRC), especially metastatic (mCRC) form, becomes a major reason behind cancer morbidity worldwide, whereas the treatment strategy is not optimum. Several novel targets are under investigation for mCRC including the autophagy pathway. Natural compounds including dietary lignans are sparsely reported as autophagy modulators. Nonetheless, the interaction between dietary lignans and core autophagy complexes are yet to be characterised. We aimed to describe the interaction between the dietary lignans from flaxseed (Linum usitatissimum) and sesame seeds (Sesamum indicum) along with the enterolignans (enterodiol and enterolactone) and the UNC-51-like kinase 1 and 2 (ULK1/2), important kinases required for the autophagy. A range of in-silico technologies viz. molecular docking, drug likeness, and ADME/T was employed to select the best fit modulator and/or inhibitor of the target kinases from the list of selected lignans. Drug likeness and ADME/T studied further selected the best-suited lignans as potential autophagy inhibitor. Molecular dynamic simulation (MDS) analyses were used to validate the molecular docking results. Binding free energies of the protein-ligand interactions by MM-PBSA method further confirmed best-selected lignans as ULK1 and/or ULK2 inhibitor. In conclusion, three dietary lignans pinoresinol, medioresinol, and lariciresinol successfully identified as dual ULK1/2 inhibitor/modifier, whereas enterodiol emerged as a selective ULK2 inhibitor/modifier.
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Affiliation(s)
- Arindam Sain
- Department of Biotechnology, Maulana Abul Kalam Azad University of Technology, NH-12, Haringhata, Nadia, West Bengal, 741249, India
| | - Thirukumaran Kandasamy
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Debdut Naskar
- Department of Biotechnology, Maulana Abul Kalam Azad University of Technology, NH-12, Haringhata, Nadia, West Bengal, 741249, India.
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10
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Kleigrewe K, Haack M, Baudin M, Ménabréaz T, Crovadore J, Masri M, Beyrer M, Andlauer W, Lefort F, Dawid C, Brück TB, Brück WM. Dietary Modulation of the Human Gut Microbiota and Metabolome with Flaxseed Preparations. Int J Mol Sci 2022; 23:ijms231810473. [PMID: 36142393 PMCID: PMC9499670 DOI: 10.3390/ijms231810473] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/05/2022] [Accepted: 09/06/2022] [Indexed: 11/16/2022] Open
Abstract
Flaxseeds are typically consumed either as whole flaxseed, ground flaxseed, flaxseed oil, partially defatted flaxseed meal, or as a milk alternative. They are considered a rich source of vitamins, minerals, proteins and peptides, lipids, carbohydrates, lignans, and dietary fiber, which have shown hypolipidemic, antiatherogenic, anticholesterolemic, and anti-inflammatory property activity. Here, an in vitro batch culture model was used to investigate the influence of whole milled flaxseed and partially defatted milled flaxseed press cake on the gut microbiota and the liberation of flaxseed bioactives. Microbial communities were profiled using 16S rRNA gene-based high-throughput sequencing with targeted mass spectrometry measuring lignan, cyclolinopeptide, and bile acid content and HPLC for short-chain fatty acid profiles. Flaxseed supplementation decreased gut microbiota richness with Firmicutes, Proteobacteria, and Bacteroidetes becoming the predominant phyla. Secoisolariciresinol, enterodiol, and enterolactone were rapidly produced with acetic acid, butyric acid, and propionic acid being the predominant acids after 24 h of fermentation. The flaxseed press cake and whole flaxseed were equivalent in microbiota changes and functionality. However, press cake may be superior as a functional additive in a variety of foods in terms of consumer acceptance as it would be more resistant to oxidative changes.
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Affiliation(s)
- Karin Kleigrewe
- Bavarian Center for Biomolecular Mass Spectrometry, School of Life Sciences, Technical University of Munich, 85354 Freising, Germany
| | - Martina Haack
- Werner Siemens-Chair of Synthetic Biotechnology, Department of Chemistry, Technical University of Munich, Garching b., 85748 München, Germany
| | - Martine Baudin
- Institute of Life Technologies, School of Engineering, HES-SO University of Applied Sciences and Arts Western Switzerland Valais-Wallis, 1950 Sion, Switzerland
| | - Thomas Ménabréaz
- Institute of Life Technologies, School of Engineering, HES-SO University of Applied Sciences and Arts Western Switzerland Valais-Wallis, 1950 Sion, Switzerland
| | - Julien Crovadore
- Plants and Pathogens Group, Research Institute Land Nature and Environment, Geneva School of Engineering, Architecture and Landscape (HEPIA), HES-SO University of Applied Sciences and Arts Western Switzerland, 1254 Jussy, Switzerland
| | - Mahmoud Masri
- Werner Siemens-Chair of Synthetic Biotechnology, Department of Chemistry, Technical University of Munich, Garching b., 85748 München, Germany
| | - Michael Beyrer
- Institute of Life Technologies, School of Engineering, HES-SO University of Applied Sciences and Arts Western Switzerland Valais-Wallis, 1950 Sion, Switzerland
| | - Wilfried Andlauer
- Institute of Life Technologies, School of Engineering, HES-SO University of Applied Sciences and Arts Western Switzerland Valais-Wallis, 1950 Sion, Switzerland
| | - François Lefort
- Plants and Pathogens Group, Research Institute Land Nature and Environment, Geneva School of Engineering, Architecture and Landscape (HEPIA), HES-SO University of Applied Sciences and Arts Western Switzerland, 1254 Jussy, Switzerland
| | - Corinna Dawid
- Bavarian Center for Biomolecular Mass Spectrometry, School of Life Sciences, Technical University of Munich, 85354 Freising, Germany
- Chair of Food Chemistry and Molecular Sensory Science, School of Life Sciences, Technical University of Munich, 85354 Freising, Germany
| | - Thomas B. Brück
- Werner Siemens-Chair of Synthetic Biotechnology, Department of Chemistry, Technical University of Munich, Garching b., 85748 München, Germany
| | - Wolfram M. Brück
- Institute of Life Technologies, School of Engineering, HES-SO University of Applied Sciences and Arts Western Switzerland Valais-Wallis, 1950 Sion, Switzerland
- Correspondence: ; Tel.: +41-58-606-86-64
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11
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Personalized Nutrition Using Microbial Metabolite Phenotype to Stratify Participants and Non-Invasive Host Exfoliomics Reveal the Effects of Flaxseed Lignan Supplementation in a Placebo-Controlled Crossover Trial. Nutrients 2022; 14:nu14122377. [PMID: 35745107 PMCID: PMC9230005 DOI: 10.3390/nu14122377] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 06/01/2022] [Accepted: 06/04/2022] [Indexed: 02/01/2023] Open
Abstract
High-fiber plant foods contain lignans that are converted to bioactive enterolignans, enterolactone (ENL) and enterodiol (END) by gut bacteria. Previously, we conducted an intervention study to gain mechanistic insight into the potential chemoprotective effects of flaxseed lignan supplementation (secoisolariciresinol diglucoside; SDG) compared to a placebo in 42 men and women. Here, we expand on these analyses to further probe the impact of the microbial metabolite phenotype on host gene expression in response to lignan exposure. We defined metabolic phenotypes as high- or low-ENL excretion based on the microbial metabolism of SDG. RNA-seq was used to assess host gene expression in fecal exfoliated cells. Stratified by microbial ENL excretion, differentially expressed (DE) genes in high- and low-ENL excreter groups were compared. Linear discriminant analysis using the ENL phenotypes identified putative biomarker combinations of genes capable of discriminating the lignan treatment from the placebo. Following lignan intervention, a total of 165 DE genes in high-ENL excreters and 1450 DE genes in low-ENL excreters were detected. Functional analysis identified four common upstream regulators (master genes): CD3, IFNG, IGF1 and TNFRSF1A. Our findings suggest that the enhanced conversion of flaxseed lignan to ENL is associated with a suppressed inflammatory status.
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12
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Beneficial Effects of Linseed Supplementation on Gut Mucosa-Associated Microbiota in a Physically Active Mouse Model of Crohn's Disease. Int J Mol Sci 2022; 23:ijms23115891. [PMID: 35682570 PMCID: PMC9180845 DOI: 10.3390/ijms23115891] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/10/2022] [Accepted: 05/22/2022] [Indexed: 02/07/2023] Open
Abstract
The Western diet, rich in lipids and in n-6 polyunsaturated fatty acids (PUFAs), favors gut dysbiosis observed in Crohn's disease (CD). The aim of this study was to assess the effects of rebalancing the n-6/n-3 PUFA ratio in CEABAC10 transgenic mice that mimic CD. Mice in individual cages with running wheels were randomized in three diet groups for 12 weeks: high-fat diet (HFD), HFD + linseed oil (HFD-LS-O) and HFD + extruded linseed (HFD-LS-E). Then, they were orally challenged once with the Adherent-Invasive Escherichia coli (AIEC) LF82 pathobiont. After 12 weeks of diet, total energy intake, body composition, and intestinal permeability were not different between groups. After the AIEC-induced intestinal inflammation, fecal lipocalin-2 concentration was lower at day 6 in n-3 PUFAs supplementation groups (HFD-LS-O and HFD-LS-E) compared to HFD. Analysis of the mucosa-associated microbiota showed that the abundance of Prevotella, Paraprevotella, Ruminococcus, and Clostridiales was higher in the HFD-LS-E group. Butyrate levels were higher in the HFD-LS-E group and correlated with the Firmicutes/Proteobacteria ratio. This study demonstrates that extruded linseed supplementation had a beneficial health effect in a physically active mouse model of CD susceptibility. Additional studies are required to better decipher the matrix influence in the linseed supplementation effect.
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Khandouzi N, Zahedmehr A, Firoozi A, Nasrollahzadehp J. Effects of flaxseed consumption on plasma lipids, lipoprotein-associated phospholipase A 2 activity and gut microbiota composition in patients with coronary artery disease. Nutr Health 2022:2601060221091016. [PMID: 35382631 DOI: 10.1177/02601060221091016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Background: Clinical studies have demonstrated possible beneficial effects of flaxseed on cardiovascular disease risk factors, but limited studies have evaluated the effects of flaxseed on the plasma lipoprotein-associated phospholipase A2 (Lp-PLA2) and gut microbial composition in patients with coronary artery disease (CAD). Aim: The purpose of the present study was to examine the effect of flaxseed consumption on plasma lipids and lipoproteins, Lp-PLA2 activity, as well as the relative abundance of some gut microbiota in CAD patients. Methods: In a randomized controlled parallel trial, 50 patients with CAD were randomly allocated to 12 weeks of supplementation of flaxseed (30 g/day) or control (usual care). Before and after the intervention, plasma lipids, Lp-PLA2 activity, and some gut microbiota composition (4 different bacterial genera, including Lactobacillus, Bifidobacteria, Bacteroidetes, Firmicutes) were measured. Results: Compared to control, flaxseed consumption was associated with improved Lp-PLA2 activity. After 12 weeks of intervention, no significant changes were observed in plasma lipids and fecal microbial composition in the two study groups. Conclusion: The present study showed that in patients with CAD, flaxseed supplementation reduced plasma Lp-PLA2 activity but had no effect on plasma lipids and the composition of some intestinal bacteria.
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Affiliation(s)
- Nafiseh Khandouzi
- Department of Clinical Nutrition & Dietetics, 226734National Nutrition, and Food Technology Research Institute, Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Hafezi St, Farahzadi Blvd., Qods Town, Tehran, Iran
| | - Ali Zahedmehr
- Cardiovascular Intervention Research Center, 158776Rajaie Cardiovascular, Medical & Research Center, Iran University of Medical Sciences, Niyayesh Intersection., Valiasr St, Tehran, Iran
| | - Ata Firoozi
- Cardiovascular Intervention Research Center, 158776Rajaie Cardiovascular, Medical & Research Center, Iran University of Medical Sciences, Niyayesh Intersection., Valiasr St, Tehran, Iran
| | - Javad Nasrollahzadehp
- Department of Clinical Nutrition & Dietetics, 226734National Nutrition, and Food Technology Research Institute, Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Hafezi St, Farahzadi Blvd., Qods Town, Tehran, Iran
- Department of Clinical Nutrition & Dietetics, National Nutrition, and Food Technology Research Institute, Faculty of Nutrition Sciences and Food Technology, 48486Shahid Beheshti University of Medical Sciences, No. 7, Hafezi St, Farahzadi Blvd., Qods Town, Tehran, Iran
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14
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Discriminatory and cooperative effects within the mouse gut microbiota in response to flaxseed and its oil and lignan components. J Nutr Biochem 2021; 98:108818. [PMID: 34271098 DOI: 10.1016/j.jnutbio.2021.108818] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 04/12/2021] [Accepted: 06/30/2021] [Indexed: 12/13/2022]
Abstract
Gut microbial processing of dietary flaxseed (FS) contributes to its health benefits, but the relative effects of its bioactive components (lignans, omega-3 fatty acids, fiber) on the microbiota are unclear. We investigated the gut microbial compositional and functional responses to whole FS and its isolated components, FS oil (FSO) and secoisolariciresinol diglucoside (SDG) (precursor to microbial-derived enterolignans) to help understand their contribution to whole FS benefits. Cecum content and fecal samples were collected from C57BL/6 female mice fed a basal diet (AIN93G) or isocaloric diets containing 10% FS or 10% FS-equivalent amounts of FSO or SDG for 21 days. Cecal and fecal microbiota composition and predicted genomic functions, and their relationship with serum enterolignans were evaluated. Only FS modified the community structure. Shared- and diet-specific enriched taxa and functions were identified. Carbohydrate and protein processing functions were enriched in FS mice, and there was a positive correlation between select enriched taxa, encompassing fiber degraders and SDG metabolizers, and serum enterolignans. This was not observed in mice receiving isolated FSO and SDG, suggesting that FS fiber supports SDG microbial metabolism. In conclusion, the cooperative activities of a diverse microbiota are necessary to process FS components and, when administered at the amount present in FS, these components may act together to affect SDG-derived enterolignans production. This has implications for the use of FS, FSO and SDG in clinical practice.
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15
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Yoon G, Davidson LA, Goldsby JS, Mullens DA, Ivanov I, Donovan SM, Chapkin RS. Exfoliated epithelial cell transcriptome reflects both small and large intestinal cell signatures in piglets. Am J Physiol Gastrointest Liver Physiol 2021; 321:G41-G51. [PMID: 33949197 PMCID: PMC8321797 DOI: 10.1152/ajpgi.00017.2021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Assessing intestinal development and host-microbe interactions in healthy human infants requires noninvasive approaches. We have shown that the transcriptome of exfoliated epithelial cells in feces can differentiate breast-fed and formula-fed infants and term and preterm infants. However, it is not fully understood which regions of the intestine that the exfoliated cells represent. Herein, the transcriptional profiles of exfoliated cells with that of the ileal and colonic mucosa were compared. We hypothesized that exfoliated cells in the distal colon would reflect mucosal signatures of more proximal regions of the gut. Two-day-old piglets (n = 8) were fed formulas for 20 days. Luminal contents and mucosa were collected from ileum (IL), ascending colon (AC), and descending (DC) colon, and mRNA was extracted and sequenced. On average, ∼13,000 genes were mapped in mucosal tissues and ∼10,000 in luminal contents. The intersection of detected genes between three mucosa regions and DC exfoliome indicated an approximately 99% overlap. On average, 49% of the genes in IL, AC, and DC mucosa were present in the AC and DC exfoliome. Genes expressed predominantly in specific anatomic sites (stomach, pancreas, small intestine, colon) were detectable in exfoliated cells. In addition, gene markers for all intestinal epithelial cell types were expressed in the exfoliome representing a diverse array of cell types arising from both the small and large intestine. Genes were mapped to nutrient absorption and transport and immune function. Thus, the exfoliome represents a robust reservoir of information in which to assess intestinal development and responses to dietary interventions.NEW & NOTEWORTHY The transcriptome of exfoliated epithelial cells in stool contain gene signatures from both small and large intestinal mucosa affording a noninvasive approach to assess gut health and function.
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Affiliation(s)
- Grace Yoon
- 1Department of Statistics, Texas A&M University, College Station, Texas
| | - Laurie A. Davidson
- 2Department of Nutrition, Texas A&M University, College Station Texas,3Program in Integrative Nutrition & Complex Diseases, Texas A&M University, College Station, Texas
| | - Jennifer S. Goldsby
- 2Department of Nutrition, Texas A&M University, College Station Texas,3Program in Integrative Nutrition & Complex Diseases, Texas A&M University, College Station, Texas
| | - Destiny A. Mullens
- 3Program in Integrative Nutrition & Complex Diseases, Texas A&M University, College Station, Texas,4Department of Veterinary Pathobiology, Texas A&M University, College Station, Texas
| | - Ivan Ivanov
- 4Department of Veterinary Pathobiology, Texas A&M University, College Station, Texas
| | - Sharon M. Donovan
- 5Department of Food Science and Human Nutrition, University of Illinois, Urbana-Champaign, Illinois
| | - Robert S. Chapkin
- 2Department of Nutrition, Texas A&M University, College Station Texas,3Program in Integrative Nutrition & Complex Diseases, Texas A&M University, College Station, Texas
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16
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Dingeo G, Brito A, Samouda H, Iddir M, La Frano MR, Bohn T. Phytochemicals as modifiers of gut microbial communities. Food Funct 2021; 11:8444-8471. [PMID: 32996966 DOI: 10.1039/d0fo01483d] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A healthy gut microbiota (GM) is paramount for a healthy lifestyle. Alterations of the GM have been involved in the aetiology of several chronic diseases, including obesity and type 2 diabetes, as well as cardiovascular and neurodegenerative diseases. In pathological conditions, the diversity of the GM is commonly reduced or altered, often toward an increased Firmicutes/Bacteroidetes ratio. The colonic fermentation of dietary fiber has shown to stimulate the fraction of bacteria purported to have beneficial health effects, acting as prebiotics, and to increase the production of short chain fatty acids, e.g. propionate and butyrate, while also improving gut epithelium integrity such as tight junction functionality. However, a variety of phytochemicals, often associated with dietary fiber, have also been proposed to modulate the GM. Many phytochemicals possess antioxidant and anti-inflammatory properties that may positively affect the GM, including polyphenols, carotenoids, phytosterols/phytostanols, lignans, alkaloids, glucosinolates and terpenes. Some polyphenols may act as prebiotics, while carotenoids have been shown to alter immunoglobulin A expression, an important factor for bacteria colonization. Other phytochemicals may interact with the mucosa, another important factor for colonization, and prevent its degradation. Certain polyphenols have shown to influence bacterial communication, interacting with quorum sensing. Finally, phytochemicals can be metabolized in the gut into bioactive constituents, e.g. equol from daidzein and enterolactone from secoisolariciresinol, while bacteria can use glycosides for energy. In this review, we strive to highlight the potential interactions between prominent phytochemicals and health benefits related to the GM, emphasizing their potential as adjuvant strategies for GM-related diseases.
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Affiliation(s)
| | - Alex Brito
- Luxembourg Institute of Health, Population Health Department, Nutrition and Health Research Group, 1A-B, rue Thomas Edison, Strassen L-1445, Luxembourg. and Laboratory of Pharmacokinetics and Metabolomic Analysis, Institute of Translational Medicine and Biotechnology, I.M. Sechenov First Moscow Medical University, Moscow, Russia.
| | - Hanen Samouda
- Luxembourg Institute of Health, Population Health Department, Nutrition and Health Research Group, 1A-B, rue Thomas Edison, Strassen L-1445, Luxembourg.
| | - Mohammed Iddir
- Luxembourg Institute of Health, Population Health Department, Nutrition and Health Research Group, 1A-B, rue Thomas Edison, Strassen L-1445, Luxembourg.
| | - Michael R La Frano
- Department of Food Science and Nutrition, California Polytechnic State University, San Luis Obispo, CA, USA. and Center for Health Research, California Polytechnic State University, San Luis Obispo, CA, USA.
| | - Torsten Bohn
- Luxembourg Institute of Health, Population Health Department, Nutrition and Health Research Group, 1A-B, rue Thomas Edison, Strassen L-1445, Luxembourg.
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17
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McCann SE, Hullar MA, Tritchler DL, Cortes-Gomez E, Yao S, Davis W, O’Connor T, Erwin D, Thompson LU, Yan L, Lampe JW. Enterolignan Production in a Flaxseed Intervention Study in Postmenopausal US Women of African Ancestry and European Ancestry. Nutrients 2021; 13:nu13030919. [PMID: 33809130 PMCID: PMC8001909 DOI: 10.3390/nu13030919] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 03/08/2021] [Accepted: 03/10/2021] [Indexed: 12/22/2022] Open
Abstract
Lignans are phytochemicals studied extensively as dietary factors in chronic disease etiology. Our goal was to examine associations between the gut microbiota and lignan metabolism and whether these associations differ by ethnicity. We conducted a flaxseed (FS) dietary intervention in 252 healthy, postmenopausal women of African ancestry (AA) and European ancestry (EA). Participants consumed ~10 g/d ground flaxseed for 6 weeks and provided overnight urine collections and fecal samples before and after intervention. The gut microbiota was characterized using 16S rRNA gene sequencing and differences in microbial community composition compared by ethnicity and intervention status. We observed a significant difference in the composition of the microbiota measured as beta diversity (p < 0.05) between AA and EA at baseline that was attenuated with FS consumption. Genera that were significantly associated with ENL production (e.g., Klebsiella, Lactobacillus, Slackia, Senegalimassilia) were unique to each group. Bacteria (e.g., Fusobacteria, Pyramidobacter and Odoribacter) previously associated with colorectal cancer and cardiovascular disease, both diet-related chronic diseases, were unique to either AA or EA and were significantly reduced in the FS intervention. This study suggests that ethnic variation in ENL metabolism may be linked to gut microbiota composition, and its impact on disease risk deserves future investigation.
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Affiliation(s)
- Susan E. McCann
- Department of Cancer Prevention and Control, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA; (S.Y.); (W.D.); (D.E.)
- Correspondence: ; Tel.: +1-716-845-8842
| | - Meredith A.J. Hullar
- Cancer Prevention Program, Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; (M.A.J.H.); (J.W.L.)
| | - David L. Tritchler
- Department of Biostatistics, University at Buffalo, Buffalo, NY 14214, USA;
| | - Eduardo Cortes-Gomez
- Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA; (E.C.-G.); (L.Y.)
| | - Song Yao
- Department of Cancer Prevention and Control, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA; (S.Y.); (W.D.); (D.E.)
| | - Warren Davis
- Department of Cancer Prevention and Control, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA; (S.Y.); (W.D.); (D.E.)
| | - Tracey O’Connor
- Department of Medicine, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA;
| | - Deborah Erwin
- Department of Cancer Prevention and Control, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA; (S.Y.); (W.D.); (D.E.)
| | - Lilian U. Thompson
- Department of Nutritional Sciences, University of Toronto, Toronto, ON M5S 1A8, Canada;
| | - Li Yan
- Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA; (E.C.-G.); (L.Y.)
| | - Johanna W. Lampe
- Cancer Prevention Program, Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; (M.A.J.H.); (J.W.L.)
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Assessing the Multivariate Relationship between the Human Infant Intestinal Exfoliated Cell Transcriptome (Exfoliome) and Microbiome in Response to Diet. Microorganisms 2020; 8:microorganisms8122032. [PMID: 33353204 PMCID: PMC7766018 DOI: 10.3390/microorganisms8122032] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 12/09/2020] [Accepted: 12/17/2020] [Indexed: 02/07/2023] Open
Abstract
Gut microbiota and the host exist in a mutualistic relationship, with the functional composition of the microbiota strongly influencing the health and well-being of the host. In addition to the standard differential expression analysis of host genes to assess the complex cross-talk between environment (diet), microbiome, and host intestinal physiology, data-driven integrative approaches are needed to identify potential biomarkers of both host genes and microbial communities that characterize these interactions. Our findings demonstrate that the complementary application of univariate differential gene expression analysis and multivariate approaches such as sparse Canonical Correlation Analysis (sCCA) and sparse Principal Components Analysis (sPCA) can be used to integrate data from both the healthy infant gut microbial community and host transcriptome (exfoliome) using stool derived exfoliated cells shed from the gut. These approaches reveal host genes and microbial functional categories related to the feeding phenotype of the infants. Our findings also confirm that combinatorial noninvasive -omic approaches provide an integrative genomics-based perspective of neonatal host-gut microbiome interactions.
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19
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Fabian CJ, Khan SA, Garber JE, Dooley WC, Yee LD, Klemp JR, Nydegger JL, Powers KR, Kreutzjans AL, Zalles CM, Metheny T, Phillips TA, Hu J, Koestler DC, Chalise P, Yellapu NK, Jernigan C, Petroff BK, Hursting SD, Kimler BF. Randomized Phase IIB Trial of the Lignan Secoisolariciresinol Diglucoside in Premenopausal Women at Increased Risk for Development of Breast Cancer. Cancer Prev Res (Phila) 2020; 13:623-634. [PMID: 32312713 PMCID: PMC7335358 DOI: 10.1158/1940-6207.capr-20-0050] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 03/11/2020] [Accepted: 04/15/2020] [Indexed: 02/05/2023]
Abstract
We conducted a multiinstitutional, placebo-controlled phase IIB trial of the lignan secoisolariciresinol diglucoside (SDG) found in flaxseed. Benign breast tissue was acquired by random periareolar fine needle aspiration (RPFNA) from premenopausal women at increased risk for breast cancer. Those with hyperplasia and ≥2% Ki-67 positive cells were eligible for randomization 2:1 to 50 mg SDG/day (Brevail) versus placebo for 12 months with repeat bio-specimen acquisition. The primary endpoint was difference in change in Ki-67 between randomization groups. A total of 180 women were randomized, with 152 ultimately evaluable for the primary endpoint. Median baseline Ki-67 was 4.1% with no difference between arms. Median Ki-67 change was -1.8% in the SDG arm (P = 0.001) and -1.2% for placebo (P = 0.034); with no significant difference between arms. As menstrual cycle phase affects proliferation, secondary analysis was performed for 117 women who by progesterone levels were in the same phase of the menstrual cycle at baseline and off-study tissue sampling. The significant Ki-67 decrease persisted for SDG (median = -2.2%; P = 0.002) but not placebo (median = -1.0%). qRT-PCR was performed on 77 pairs of tissue specimens. Twenty-two had significant ERα gene expression changes (<0.5 or >2.0) with 7 of 10 increases in placebo and 10 of 12 decreases for SDG (P = 0.028), and a difference between arms (P = 0.017). Adverse event incidence was similar in both groups, with no evidence that 50 mg/day SDG is harmful. Although the proliferation biomarker analysis showed no difference between the treatment group and the placebo, the trial demonstrated use of SDG is tolerable and safe.
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Affiliation(s)
- Carol J Fabian
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, Kansas
| | | | | | - William C Dooley
- University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | | | - Jennifer R Klemp
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, Kansas
| | - Jennifer L Nydegger
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, Kansas
| | - Kandy R Powers
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, Kansas
| | - Amy L Kreutzjans
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, Kansas
| | - Carola M Zalles
- Department of Pathology, Boca Raton Hospital, Boca Raton, Florida
| | - Trina Metheny
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, Kansas
| | - Teresa A Phillips
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, Kansas
| | - Jinxiang Hu
- Department of Biostatistics & Data Science, University of Kansas Medical Center, Kansas City, Kansas
| | - Devin C Koestler
- Department of Biostatistics & Data Science, University of Kansas Medical Center, Kansas City, Kansas
| | - Prabhakar Chalise
- Department of Biostatistics & Data Science, University of Kansas Medical Center, Kansas City, Kansas
| | - Nanda Kumar Yellapu
- Department of Biostatistics & Data Science, University of Kansas Medical Center, Kansas City, Kansas
| | - Cheryl Jernigan
- University of Kansas Cancer Center, University of Kansas Medical Center, Kansas City, Kansas
| | - Brian K Petroff
- Veterinary Diagnostic Laboratory, Michigan State University, Lansing, Michigan
| | - Stephen D Hursting
- Department of Nutrition, University of North Carolina, Chapel Hill, North Carolina
| | - Bruce F Kimler
- Department of Radiation Oncology, University of Kansas Medical Center, Kansas City, Kansas.
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20
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Navarro SL, Levy L, Curtis KR, Elkon I, Kahsai OJ, Ammar HS, Randolph TW, Hong NN, Carnevale Neto F, Raftery D, Chapkin RS, Lampe JW, Hullar MAJ. Effect of a Flaxseed Lignan Intervention on Circulating Bile Acids in a Placebo-Controlled Randomized, Crossover Trial. Nutrients 2020; 12:E1837. [PMID: 32575611 PMCID: PMC7374341 DOI: 10.3390/nu12061837] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 06/12/2020] [Accepted: 06/16/2020] [Indexed: 12/17/2022] Open
Abstract
Plant lignans and their microbial metabolites, e.g., enterolactone (ENL), may affect bile acid (BA) metabolism through interaction with hepatic receptors. We evaluated the effects of a flaxseed lignan extract (50 mg/day secoisolariciresinol diglucoside) compared to a placebo for 60 days each on plasma BA concentrations in 46 healthy men and women (20-45 years) using samples from a completed randomized, crossover intervention. Twenty BA species were measured in fasting plasma using LC-MS. ENL was measured in 24-h urines by GC-MS. We tested for (a) effects of the intervention on BA concentrations overall and stratified by ENL excretion; and (b) cross-sectional associations between plasma BA and ENL. We also explored the overlap in bacterial metabolism at the genus level and conducted in vitro anaerobic incubations of stool with lignan substrate to identify genes that are enriched in response to lignan metabolism. There were no intervention effects, overall or stratified by ENL at FDR < 0.05. In the cross-sectional analysis, irrespective of treatment, five secondary BAs were associated with ENL excretion (FDR < 0.05). In vitro analyses showed positive associations between ENL production and bacterial gene expression of the bile acid-inducible gene cluster and hydroxysteroid dehydrogenases. These data suggest overlap in community bacterial metabolism of secondary BA and ENL.
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Affiliation(s)
- Sandi L. Navarro
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; (L.L.); (K.R.C.); (I.E.); (O.J.K.); (H.S.A.); (T.W.R.); (D.R.); (J.W.L.); (M.A.J.H.)
| | - Lisa Levy
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; (L.L.); (K.R.C.); (I.E.); (O.J.K.); (H.S.A.); (T.W.R.); (D.R.); (J.W.L.); (M.A.J.H.)
| | - Keith R. Curtis
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; (L.L.); (K.R.C.); (I.E.); (O.J.K.); (H.S.A.); (T.W.R.); (D.R.); (J.W.L.); (M.A.J.H.)
| | - Isaac Elkon
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; (L.L.); (K.R.C.); (I.E.); (O.J.K.); (H.S.A.); (T.W.R.); (D.R.); (J.W.L.); (M.A.J.H.)
| | - Orsalem J. Kahsai
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; (L.L.); (K.R.C.); (I.E.); (O.J.K.); (H.S.A.); (T.W.R.); (D.R.); (J.W.L.); (M.A.J.H.)
| | - Hamza S. Ammar
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; (L.L.); (K.R.C.); (I.E.); (O.J.K.); (H.S.A.); (T.W.R.); (D.R.); (J.W.L.); (M.A.J.H.)
| | - Timothy W. Randolph
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; (L.L.); (K.R.C.); (I.E.); (O.J.K.); (H.S.A.); (T.W.R.); (D.R.); (J.W.L.); (M.A.J.H.)
| | - Natalie N. Hong
- Northwest Metabolomics Research Center, Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, WA 98109, USA; (N.N.H.); (F.C.N.)
| | - Fausto Carnevale Neto
- Northwest Metabolomics Research Center, Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, WA 98109, USA; (N.N.H.); (F.C.N.)
| | - Daniel Raftery
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; (L.L.); (K.R.C.); (I.E.); (O.J.K.); (H.S.A.); (T.W.R.); (D.R.); (J.W.L.); (M.A.J.H.)
- Northwest Metabolomics Research Center, Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, WA 98109, USA; (N.N.H.); (F.C.N.)
| | - Robert S. Chapkin
- Program in Integrative Nutrition & Complex Diseases, Texas A&M University, College Station, TX 77843, USA;
| | - Johanna W. Lampe
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; (L.L.); (K.R.C.); (I.E.); (O.J.K.); (H.S.A.); (T.W.R.); (D.R.); (J.W.L.); (M.A.J.H.)
| | - Meredith A. J. Hullar
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; (L.L.); (K.R.C.); (I.E.); (O.J.K.); (H.S.A.); (T.W.R.); (D.R.); (J.W.L.); (M.A.J.H.)
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21
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Corona G, Kreimes A, Barone M, Turroni S, Brigidi P, Keleszade E, Costabile A. Impact of lignans in oilseed mix on gut microbiome composition and enterolignan production in younger healthy and premenopausal women: an in vitro pilot study. Microb Cell Fact 2020; 19:82. [PMID: 32245478 PMCID: PMC7119089 DOI: 10.1186/s12934-020-01341-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 03/26/2020] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Dietary lignans belong to the group of phytoestrogens together with coumestans, stilbenes and isoflavones, and themselves do not exhibit oestrogen-like properties. Nonetheless, the gut microbiota converts them into enterolignans, which show chemical similarity to the human oestrogen molecule. One of the richest dietary sources of lignans are oilseeds, including flaxseed. The aim of this pilot study was to determine the concentration of the main dietary lignans in an oilseed mix, and explore the gut microbiota-dependent production of enterolignans for oestrogen substitution in young and premenopausal women. The oilseed mix was fermented in a pH-controlled batch culture system inoculated with women's faecal samples. The lignan content and enterolignan production were measured by ultra-high-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS), and the faecal-derived microbial communities were profiled by 16S rRNA gene-based next-generation sequencing. RESULTS In vitro batch culture fermentation of faecal samples inoculated with oilseed mix for 24 h resulted in a substantial increase in enterolactone production in younger women and an increase in enterodiol in the premenopausal group. As for the gut microbiota, different baseline profiles were observed as well as different temporal dynamics, mainly related to Clostridiaceae, and Klebsiella and Collinsella spp. CONCLUSIONS Despite the small sample size, our pilot study revealed that lignan-rich oilseeds could strongly influence the faecal microbiota of both younger and premenopausal females, leading to a different enterolignan profile being produced. Further studies in larger cohorts are needed to evaluate the long-term effects of lignan-rich diets on the gut microbiota and find out how enterolactone-producing bacterial species could be increased. Diets rich in lignans could potentially serve as a safe supplement of oestrogen analogues to meet the cellular needs of endogenous oestrogen and deliver numerous health benefits, provided that the premenopausal woman microbiota is capable of converting dietary precursors into enterolignans.
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Affiliation(s)
- Giulia Corona
- Health Science Research Centre, Department of Life Sciences, University of Roehampton, London, UK
| | - Anna Kreimes
- Health Science Research Centre, Department of Life Sciences, University of Roehampton, London, UK
| | - Monica Barone
- Unit of Holobiont Microbiome and Microbiome Engineering, Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - Silvia Turroni
- Unit of Holobiont Microbiome and Microbiome Engineering, Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - Patrizia Brigidi
- Unit of Holobiont Microbiome and Microbiome Engineering, Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - Enver Keleszade
- Health Science Research Centre, Department of Life Sciences, University of Roehampton, London, UK
| | - Adele Costabile
- Health Science Research Centre, Department of Life Sciences, University of Roehampton, London, UK.
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22
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Coleman MC, Whitfield-Cargile C, Cohen ND, Goldsby JL, Davidson L, Chamoun-Emanuelli AM, Ivanov I, Eades S, Ing N, Chapkin RS. Non-invasive evaluation of the equine gastrointestinal mucosal transcriptome. PLoS One 2020; 15:e0229797. [PMID: 32176710 PMCID: PMC7075554 DOI: 10.1371/journal.pone.0229797] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 02/13/2020] [Indexed: 02/07/2023] Open
Abstract
Evaluating the health and function of the gastrointestinal tract can be challenging in all species, but is especially difficult in horses due to their size and length of the gastrointestinal (GI) tract. Isolation of mRNA of cells exfoliated from the GI mucosa into feces (i.e., the exfoliome) offers a novel means of non-invasively examining the gene expression profile of the GI mucosa. This approach has been utilized in people with colorectal cancer. Moreover, we have utilized this approach in a murine model of GI inflammation and demonstrated that the exfoliome reflects the tissue transcriptome. The ability of the equine exfoliome to provide non-invasive information regarding the health and function of the GI tract is not known. The objective of this study was to characterize the gene expression profile found in exfoliated intestinal epithelial cells from normal horses and compare the exfoliome data with the tissue mucosal transcriptome. Mucosal samples were collected from standardized locations along the GI tract (i.e. ileum, cecum, right dorsal colon, and rectum) from four healthy horses immediately following euthanasia. Voided feces were also collected. RNA isolation, library preparation, and RNA sequencing was performed on fecal and intestinal mucosal samples. Comparison of gene expression profiles from the tissue and exfoliome revealed correlation of gene expression. Moreover, the exfoliome contained reads representing the diverse array of cell types found in the GI mucosa suggesting the equine exfoliome serves as a non-invasive means of examining the global gene expression pattern of the equine GI tract.
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Affiliation(s)
- Michelle C. Coleman
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, United States of America
| | - Canaan Whitfield-Cargile
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, United States of America
- * E-mail:
| | - Noah D. Cohen
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, United States of America
| | - Jennifer L. Goldsby
- Program in Integrative Nutrition & Complex Diseases, College of Agriculture and Life Sciences, Texas A&M University, College Station, Texas, United States America
| | - Laurie Davidson
- Program in Integrative Nutrition & Complex Diseases, College of Agriculture and Life Sciences, Texas A&M University, College Station, Texas, United States America
| | - Ana M. Chamoun-Emanuelli
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, United States of America
| | - Ivan Ivanov
- Department of Veterinary Physiology and Pharmacology, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, United States of America
| | - Susan Eades
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, United States of America
| | - Nancy Ing
- Department of Animal Science, College of Agriculture and Life Sciences, Texas A&M University, College Station, Texas, United States of America
| | - Robert S. Chapkin
- Program in Integrative Nutrition & Complex Diseases, College of Agriculture and Life Sciences, Texas A&M University, College Station, Texas, United States America
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23
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Abstract
Understanding how health-promoting microbiota are established and their beneficial interactions with the host is of critical biomedical importance. The current high throughput data acquisition technologies allow for integrating components of the gut ecosystem. The richness of data types and large number of measured variables involved underscores the critical importance of the appropriate choice of analytical and computational methods that can be used to model this complex ecosystem. This review outlines currently used approaches to perform analyses of data obtained as a result of interrogation of the gut-microbiota ecosystem and the challenges associated with these methodological and computational efforts. The problem of large dimensionality versus small numbers of samples is explained with discussions of clustering, dimensionality reduction, and statistical testing. Predictive modeling and data integration specific to the gut ecosystem are also discussed.
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Affiliation(s)
- Ivan Ivanov
- Department of Veterinary Physiology and Pharmacology, Texas A&M University, College Station, USA.
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24
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Abstract
Diet is an important risk factor for colorectal cancer (CRC), and several dietary constituents implicated in CRC are modified by gut microbial metabolism. Microbial fermentation of dietary fiber produces short-chain fatty acids, e.g., acetate, propionate, and butyrate. Dietary fiber has been shown to reduce colon tumors in animal models, and, in vitro, butyrate influences cellular pathways important to cancer risk. Furthermore, work from our group suggests that the combined effects of butyrate and omega-3 polyunsaturated fatty acids (n-3 PUFA) may enhance the chemopreventive potential of these dietary constituents. We postulate that the relatively low intakes of n-3 PUFA and fiber in Western populations and the failure to address interactions between these dietary components may explain why chemoprotective effects of n-3 PUFA and fermentable fibers have not been detected consistently in prospective cohort studies. In this review, we summarize the evidence outlining the effects of n-3 long-chain PUFA and highly fermentable fiber with respect to alterations in critical pathways important to CRC prevention, particularly intrinsic mitochondrial-mediated programmed cell death resulting from the accumulation of lipid reactive oxygen species (ferroptosis), and epigenetic programming related to lipid catabolism and beta-oxidation-associated genes.
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25
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Cresci GAM, Lampe JW, Gibson G. Targeted Approaches for In Situ Gut Microbiome Manipulation. JPEN J Parenter Enteral Nutr 2020; 44:581-588. [PMID: 32027044 PMCID: PMC9291485 DOI: 10.1002/jpen.1779] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 12/17/2019] [Indexed: 12/16/2022]
Abstract
The 2019 Dudrick Research Symposium, entitled "Targeted Approaches for In Situ Gut Microbiome Manipulation," was held on March 25, 2019, at the American Society for Parenteral and Enteral Nutrition (ASPEN) 2019 Nutrition Science & Practice Conference in Phoenix, AZ. The Dudrick Symposium honors the many pivotal and innovative contributions to the development and advancement of parenteral nutrition (PN) made by Dr Stanley J. Dudrick, physician scientist, academic leader, and a founding member of ASPEN. As the 2018 recipient of the Dudrick award, Dr Gail Cresci organized and chaired the symposium. The symposium addressed the evolving field of nutrition manipulation of the gut microbiome as a means to mitigate disease and support health. Presentations focused on (1) the role of prebiotics as a means to beneficially support gut microbiome composition and function and health; (2) designer synbiotics targeted to support metabolic by-products altered by ethanol exposure and microbial effectors that manipulate host metabolic outcomes; and, lastly, (3) types of intervention designs used to study diet-gut microbiome interactions in humans and a review of findings from recent interventions, which tested the effects of diet on the microbiome and the microbiome's effect on dietary exposures. New molecular techniques and multiomic approaches have improved knowledge of the structure and functional activity of the gut microbiome; however, challenges remain in establishing causal relationships between changes in the gut microbial-community structure and function and health outcomes in humans.
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Affiliation(s)
- Gail A. M. Cresci
- Department of Pediatric GastroenterologyCleveland Clinic Children's HospitalClevelandOhioUSA
- Department of Inflammation and ImmunityLerner Research InstituteCleveland ClinicClevelandOhioUSA
- Center for Human NutritionDigestive Disease InstituteCleveland ClinicClevelandOhioUSA
| | | | - Glenn Gibson
- Department of Food and Nutritional SciencesThe University of ReadingReadingUK
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Effect of flaxseed supplementation on lipid profile: An updated systematic review and dose-response meta-analysis of sixty-two randomized controlled trials. Pharmacol Res 2020; 152:104622. [DOI: 10.1016/j.phrs.2019.104622] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 12/20/2019] [Accepted: 12/27/2019] [Indexed: 02/06/2023]
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27
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O'Keefe SJD. Plant-based foods and the microbiome in the preservation of health and prevention of disease. Am J Clin Nutr 2019; 110:265-266. [PMID: 31268135 PMCID: PMC6669048 DOI: 10.1093/ajcn/nqz127] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Affiliation(s)
- Stephen J D O'Keefe
- Division of Gastroenterology, University of Pittsburgh, Pittsburgh, PA, USA,African Microbiome Institute, University of Stellenbosch, Stellenbosch, South Africa,Address correspondence to SJDO (e-mail: )
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