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Wang L, Wang S, Zhang Q, He C, Fu C, Wei Q. The role of the gut microbiota in health and cardiovascular diseases. MOLECULAR BIOMEDICINE 2022; 3:30. [PMID: 36219347 PMCID: PMC9554112 DOI: 10.1186/s43556-022-00091-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 08/05/2022] [Indexed: 11/17/2022] Open
Abstract
The gut microbiota is critical to human health, such as digesting nutrients, forming the intestinal epithelial barrier, regulating immune function, producing vitamins and hormones, and producing metabolites to interact with the host. Meanwhile, increasing evidence indicates that the gut microbiota has a strong correlation with the occurrence, progression and treatment of cardiovascular diseases (CVDs). In patients with CVDs and corresponding risk factors, the composition and ratio of gut microbiota have significant differences compared with their healthy counterparts. Therefore, gut microbiota dysbiosis, gut microbiota-generated metabolites, and the related signaling pathway may serve as explanations for some of the mechanisms about the occurrence and development of CVDs. Several studies have also demonstrated that many traditional and latest therapeutic treatments of CVDs are associated with the gut microbiota and its generated metabolites and related signaling pathways. Given that information, we summarized the latest advances in the current research regarding the effect of gut microbiota on health, the main cardiovascular risk factors, and CVDs, highlighted the roles and mechanisms of several metabolites, and introduced corresponding promising treatments for CVDs regarding the gut microbiota. Therefore, this review mainly focuses on exploring the role of gut microbiota related metabolites and their therapeutic potential in CVDs, which may eventually provide better solutions in the development of therapeutic treatment as well as the prevention of CVDs.
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Affiliation(s)
- Lu Wang
- grid.412901.f0000 0004 1770 1022Rehabilitation Medicine Center and Institute of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, People’s Republic of China ,Key Laboratory of Rehabilitation Medicine in Sichuan Province, Chengdu, People’s Republic of China
| | - Shiqi Wang
- grid.412901.f0000 0004 1770 1022Rehabilitation Medicine Center and Institute of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, People’s Republic of China ,Key Laboratory of Rehabilitation Medicine in Sichuan Province, Chengdu, People’s Republic of China
| | - Qing Zhang
- grid.412901.f0000 0004 1770 1022Rehabilitation Medicine Center and Institute of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, People’s Republic of China ,Key Laboratory of Rehabilitation Medicine in Sichuan Province, Chengdu, People’s Republic of China
| | - Chengqi He
- grid.412901.f0000 0004 1770 1022Rehabilitation Medicine Center and Institute of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, People’s Republic of China ,Key Laboratory of Rehabilitation Medicine in Sichuan Province, Chengdu, People’s Republic of China
| | - Chenying Fu
- grid.412901.f0000 0004 1770 1022National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, People’s Republic of China ,grid.412901.f0000 0004 1770 1022Aging and Geriatric Mechanism Laboratory, West China Hospital, Sichuan University, Chengdu, People’s Republic of China
| | - Quan Wei
- grid.412901.f0000 0004 1770 1022Rehabilitation Medicine Center and Institute of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, People’s Republic of China ,Key Laboratory of Rehabilitation Medicine in Sichuan Province, Chengdu, People’s Republic of China
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Yang K, Zhang P, Lv T, Wu J, Liu Q. Acupuncture at Taichong and Zusanli points exerts hypotensive effect in spontaneously hypertensive rats by metabolomic analysis. J Chromatogr B Analyt Technol Biomed Life Sci 2022; 1207:123352. [PMID: 35841734 DOI: 10.1016/j.jchromb.2022.123352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 05/30/2022] [Accepted: 06/24/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND The development of hypertension affects several target organs, the kidneys being one of them. Acupuncture has been used to treat hypertension for a long time. Several mechanisms of acupuncture on hypotensive effect have been reveled, while the effects of acupuncture on the alterations in renal cortex from a metabolomic perspective are still unclear. METHODS Twelve male Wistar rats served as the control group (Wistar Group). Twenty-four male spontaneously hypertensive rats (SHR) were randomly divided into two groups: the model group (SHR Group) and the acupuncture group (AC Group). In the AC Group, milli-needle acupuncture was used to puncture the bilateral Taichong (LR3) and Zusanli (ST36) points. Blood pressure values were measured weekly and the rats were euthanized after three weeks. Renal cortical tissues were collected for non-targeted and targeted metabolomic analyses. RESULTS Acupuncture reduced blood pressure values in rats (Compared with the SHR Group, P < 0.001). Thirteen metabolites with significant differences and three metabolic pathways were screened by untargeted metabolomics. The SHR Group was compared with the Wistar Group and AC Group both involving metabolites and pathways related to bile acid metabolism. Furthermore, targeted metabolomics quantification of four bile acids, Cholic acid (CA), Allocholic acid (ACA), Deoxycholic acid (DCA) and Chenodeoxycholic acid (CDCA), revealed that all bile acid concentrations were relatively high in the SHR Group, except for ACA. CONCLUSION This study indicate that abnormal bile acid metabolism may be an independent risk factor the development of hypertension. Acupuncture at Taichong and at Zusanli points effectively modulated bile acids metabolism in SHR renal cortex tissues to exert a hypotensive effect, and CA may be able to be a new target for the treatment of hypertension.
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Affiliation(s)
- Kezhen Yang
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Pingna Zhang
- Renal Research Institution of Beijing University of Chinese Medicine, and Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing 100700, China
| | - Taotao Lv
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Jiaojuan Wu
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Qingguo Liu
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 102488, China.
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Louca P, Nogal A, Moskal A, Goulding NJ, Shipley MJ, Alkis T, Lindbohm JV, Hu J, Kifer D, Wang N, Chawes B, Rexrode KM, Ben-Shlomo Y, Kivimaki M, Murphy RA, Yu B, Gunter MJ, Suhre K, Lawlor DA, Mangino M, Menni C. Cross-Sectional Blood Metabolite Markers of Hypertension: A Multicohort Analysis of 44,306 Individuals from the COnsortium of METabolomics Studies. Metabolites 2022; 12:601. [PMID: 35888725 PMCID: PMC9324896 DOI: 10.3390/metabo12070601] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 05/27/2022] [Accepted: 06/09/2022] [Indexed: 12/30/2022] Open
Abstract
Hypertension is the main modifiable risk factor for cardiovascular morbidity and mortality but discovering molecular mechanisms for targeted treatment has been challenging. Here we investigate associations of blood metabolite markers with hypertension by integrating data from nine intercontinental cohorts from the COnsortium of METabolomics Studies. We included 44,306 individuals with circulating metabolites (up to 813). Metabolites were aligned and inverse normalised to allow intra-platform comparison. Logistic models adjusting for covariates were performed in each cohort and results were combined using random-effect inverse-variance meta-analyses adjusting for multiple testing. We further conducted canonical pathway analysis to investigate the pathways underlying the hypertension-associated metabolites. In 12,479 hypertensive cases and 31,827 controls without renal impairment, we identified 38 metabolites, associated with hypertension after adjusting for age, sex, body mass index, ethnicity, and multiple testing. Of these, 32 metabolite associations, predominantly lipid (steroids and fatty acyls) and organic acids (amino-, hydroxy-, and keto-acids) remained after further adjusting for comorbidities and dietary intake. Among the identified metabolites, 5 were novel, including 2 bile acids, 2 glycerophospholipids, and ketoleucine. Pathway analysis further implicates the role of the amino-acids, serine/glycine, and bile acids in hypertension regulation. In the largest cross-sectional hypertension-metabolomics study to date, we identify 32 circulating metabolites (of which 5 novel and 27 confirmed) that are potentially actionable targets for intervention. Further in-vivo studies are needed to identify their specific role in the aetiology or progression of hypertension.
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Affiliation(s)
- Panayiotis Louca
- Department of Twin Research, King’s College London, London SE1 7EH, UK; (P.L.); (A.N.); (M.M.)
| | - Ana Nogal
- Department of Twin Research, King’s College London, London SE1 7EH, UK; (P.L.); (A.N.); (M.M.)
| | - Aurélie Moskal
- Nutrition and Metabolism Section, International Agency for Research on Cancer, 69372 Lyon, France; (A.M.); (M.J.G.)
| | - Neil J. Goulding
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol BS8 2BN, UK; (N.J.G.); (Y.B.-S.); (D.A.L.)
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol BS8 2BN, UK
| | - Martin J. Shipley
- Department Epidemiology and Public Health, University College London, London WC1E 7HB, UK; (M.J.S.); (J.V.L.); (M.K.)
| | - Taryn Alkis
- Department of Epidemiology, Human Genetics and Environmental Sciences, School of Public Health, The University of Texas Health Science Center, Houston, TX 77030, USA; (T.A.); (B.Y.)
| | - Joni V. Lindbohm
- Department Epidemiology and Public Health, University College London, London WC1E 7HB, UK; (M.J.S.); (J.V.L.); (M.K.)
- Clinicum, Department of Public Health, University of Helsinki, P.O. Box 20 Helsinki, Finland
| | - Jie Hu
- Division of Women’s Health, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115, USA; (J.H.); (K.M.R.)
| | - Domagoj Kifer
- Faculty of Pharmacy and Biochemistry, University of Zagreb, 10000 Zagreb, Croatia;
| | - Ni Wang
- Copenhagen Prospective Studies on Asthma in Childhood, Herlev and Gentofte Hospital, University of Copenhagen, 2820 Gentofte, Denmark; (N.W.); (B.C.)
- Department of Biotechnology and Biomedicine, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - Bo Chawes
- Copenhagen Prospective Studies on Asthma in Childhood, Herlev and Gentofte Hospital, University of Copenhagen, 2820 Gentofte, Denmark; (N.W.); (B.C.)
| | - Kathryn M. Rexrode
- Division of Women’s Health, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115, USA; (J.H.); (K.M.R.)
| | - Yoav Ben-Shlomo
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol BS8 2BN, UK; (N.J.G.); (Y.B.-S.); (D.A.L.)
- NIHR Applied Research Collaboration West, University Hospitals Bristol and Weston National Health Service Foundation Trust, Bristol BS1 2NT, UK
| | - Mika Kivimaki
- Department Epidemiology and Public Health, University College London, London WC1E 7HB, UK; (M.J.S.); (J.V.L.); (M.K.)
| | - Rachel A. Murphy
- School of Population and Public Health, University of British Columbia, Vancouver, BC V6T 1Z3, Canada;
- Cancer Control Research, BC Cancer, Vancouver, BC V5Z 1G1, Canada
| | - Bing Yu
- Department of Epidemiology, Human Genetics and Environmental Sciences, School of Public Health, The University of Texas Health Science Center, Houston, TX 77030, USA; (T.A.); (B.Y.)
| | - Marc J. Gunter
- Nutrition and Metabolism Section, International Agency for Research on Cancer, 69372 Lyon, France; (A.M.); (M.J.G.)
| | - Karsten Suhre
- Department of Biophysics and Physiology, Weill Cornell Medicine-Qatar, Doha 24144, Qatar;
| | - Deborah A. Lawlor
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol BS8 2BN, UK; (N.J.G.); (Y.B.-S.); (D.A.L.)
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol BS8 2BN, UK
- Bristol NIHR Biomedical Research Centre, University of Bristol, Bristol BS1 2NT, UK
| | - Massimo Mangino
- Department of Twin Research, King’s College London, London SE1 7EH, UK; (P.L.); (A.N.); (M.M.)
- NIHR Biomedical Research Centre at Guy’s and St Thomas’ Foundation Trust, London SE1 9RT, UK
| | - Cristina Menni
- Department of Twin Research, King’s College London, London SE1 7EH, UK; (P.L.); (A.N.); (M.M.)
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Wu S, Zhao W, Yu Z, Liu J. Antihypertensive effect and underlying mechanism of tripeptide NCW on spontaneously hypertensive rats using metabolomics analysis. Food Funct 2022; 13:1808-1821. [PMID: 35084009 DOI: 10.1039/d1fo03924e] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Tripeptide NCW identified in our previous study displayed a strong ACE inhibitory activity, but whether it has any antihypertensive effect in vivo remains unknown. Thus, in this study, we aimed to investigate the protective effects of tripeptide NCW in spontaneously hypertensive rats (SHRs) and to further figure out the serum metabolic profiling variations due to its oral administration via UPLC-Q-TOF-MS/MS-based metabolomics analysis to clarify the underlying hypotensive mechanism. After three weeks of oral administration, the tripeptide NCW-treated group (NCW/SHR group, 80 mg per kg BW per d) showed significantly reduced systolic and diastolic blood pressure by 48.08 ± 3.84 mmHg and 48.92 ± 5.77 mmHg, respectively. Additionally, a total of 25 blood pressure-related metabolites were identified as being significantly changed in SHRs given tripeptide NCW after three weeks. These 25 metabolites might be biomarkers that indicated that the tripeptide NCW exhibits antihypertensive activity via regulating bile acid metabolism, lipid metabolism, amino acid metabolism, purinergic signaling, pantothenate and CoA biosynthesis, and the citrate cycle. Collectively, tripeptide NCW has a protective effect on SHRs associated with serum metabolite abnormalities.
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Affiliation(s)
- Sijia Wu
- College of Food Science and Engineering, Bohai University, Jinzhou 121013, P.R. China. .,Lab of Nutrition and Functional Food, Jilin University, Changchun 130062, P.R. China
| | - Wenzhu Zhao
- College of Food Science and Engineering, Bohai University, Jinzhou 121013, P.R. China.
| | - Zhipeng Yu
- College of Food Science and Engineering, Bohai University, Jinzhou 121013, P.R. China.
| | - Jingbo Liu
- Lab of Nutrition and Functional Food, Jilin University, Changchun 130062, P.R. China
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Yang K, Lv T, Wu J, Zhang X, Xue Y, Yu P, Liu Q. The Protective Effect of Electroacupuncture on the Renal Cortex of SHR: A Metabonomic Analysis. Biomed Chromatogr 2022; 36:e5338. [PMID: 35028961 DOI: 10.1002/bmc.5338] [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: 11/29/2021] [Revised: 01/03/2022] [Accepted: 01/04/2022] [Indexed: 11/07/2022]
Abstract
Hypertension will affect multiple organs in the body during the development of the disease. The antihypertensive effect of acupuncture on hypertension has been confirmed. The study of how the protective effect of electroacupuncture on the renal cortex of SHR is achieved has not yet been studied. The purpose of this study is to understand the impact of electroacupuncture on the blood pressure of spontaneously hypertensive rat (SHR) and the impact on metabolites in the renal cortex, looking for potential differential metabolites, and then proceeding to the next step of exploratory research. In the experiment, the experimental animals were divided into four groups: Control group, Model group, Electroacupuncture group, Losartan Potassium group, and electroacupuncture on bilateral Taichong (LR3) and Zusanli (ST36) lasted for 3 weeks, and the renal cortex was collected for metabonomics research. UHPLC-MS was used to analyze the changes in the metabolic spectrum of renal cortex tissue. The results showed that electroacupuncture can significantly reduce the blood pressure of SHR. A total of 12 metabolites have changed significantly in the comparison between each group and Model group. The possible mechanism is that the primary bile acid biosynthesis, bile secretion, tryptophan metabolism and other metabolic pathways affect the renal cortex.
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Affiliation(s)
- Kezhen Yang
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing, China
| | - Taotao Lv
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing, China
| | - Jiaojuan Wu
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing, China
| | - Xudong Zhang
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing, China
| | - Yanjun Xue
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing, China
| | - Pengcheng Yu
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing, China
| | - Qingguo Liu
- School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing, China
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6
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Alam MJ, Puppala V, Uppulapu SK, Das B, Banerjee SK. Human microbiome and cardiovascular diseases. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2022; 192:231-279. [DOI: 10.1016/bs.pmbts.2022.07.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Zhu Y, Shui X, Liang Z, Huang Z, Qi Y, He Y, Chen C, Luo H, Lei W. Gut microbiota metabolites as integral mediators in cardiovascular diseases (Review). Int J Mol Med 2020; 46:936-948. [PMID: 32705240 PMCID: PMC7388831 DOI: 10.3892/ijmm.2020.4674] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 05/25/2020] [Indexed: 02/06/2023] Open
Abstract
Cardiovascular diseases (CVDs), such as atherosclerosis, hypertension, myocardial infarction and diabetic heart disease, are associated with high morbidity and mortality rates worldwide, and may also induce multiple organ failure in their later stages, greatly reducing the long-term survival of the patients. There are several causes of CVDs, but after nearly a decade of investigation, researchers have found that CVDs are usually accompanied by an imbalance of gut microbiota and a decreased abundance of flora. More importantly, the metabolites produced by intestinal flora, such as trimethylamine and trimethylamine N-oxide, bile acids, short-chain fatty acids and aromatic amino acids, exert different effects on the occurrence and development of CVDs, as observed in the relevant pathways in the cells, which may either promote or protect against CVD occurrence. It is known that changes in the intestinal flora following antibiotic administration, diet supplementation with probiotics, or exercise, can interfere with the composition of the intestinal flora and may represent an effective approach to preventing or treating CVDs. The focus of this review was the analysis of gut microbiota metabolites to elucidate their effects on CVDs and to identify the most cost-effective and beneficial methods for treating CVDs with minimal side effects.
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Affiliation(s)
- Ying Zhu
- Laboratory of Cardiovascular Diseases, Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Xiaorong Shui
- Laboratory of Vascular Surgery, Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Zheng Liang
- Cardiovascular Medicine Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Zufeng Huang
- Laboratory of Cardiovascular Diseases, Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Yi Qi
- Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Yuan He
- Laboratory of Cardiovascular Diseases, Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Can Chen
- Laboratory of Cardiovascular Diseases, Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Hui Luo
- Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Wei Lei
- Laboratory of Cardiovascular Diseases, Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
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Barth A, Klinger G, Rost M. Influence of ethinyloestradiol propanolsulphonate on serum bile acids in healthy volunteers. EXPERIMENTAL AND TOXICOLOGIC PATHOLOGY : OFFICIAL JOURNAL OF THE GESELLSCHAFT FUR TOXIKOLOGISCHE PATHOLOGIE 2003; 54:381-6. [PMID: 12877349 DOI: 10.1078/0940-2993-00274] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The present work was done to clarify the relevance of altered serum bile acid (BA) profile in healthy women after the administration of the depot oestrogen ethinyloestradiol propanolsulphonate (EES). In the serum of 20 healthy women before and two times after oral EES application, 11 free and 14 taurine- and glycine-conjugated BA were analysed by HPLC with postcolumn derivatisation and fluorescence detection. EES significantly enhanced the total serum BA concentration and that of taurine-conjugated BAs, more pronounced the secondary BAs taurodeoxycholic, tauroursodeoxycholic and taurolithocholic acid. These secondary BAs are produced in the intestine by bacteria due to 7alpha-dehydroxylation of the primary BAs cholic and chenodeoxycholic acid. Because of unchanged free BAs, also produced by intestinal bacteria due to deconjugation, the results were interpreted as a sign of disturbed transport of BAs into the liver. Inhibition of the liver Na(+)-bile salt co-transporter (Ntcp) in the sinusoidal membrane by ethinyloestradiol, formed from the prodrug EES, may be responsible for the altered BA profile in serum.
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Affiliation(s)
- Astrid Barth
- Institute of Pharmacology and Toxicology, Friedrich Schiller University Jena, Germany.
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Stauffer AT, Rochat MK, Dick B, Frey FJ, Odermatt A. Chenodeoxycholic acid and deoxycholic acid inhibit 11 beta-hydroxysteroid dehydrogenase type 2 and cause cortisol-induced transcriptional activation of the mineralocorticoid receptor. J Biol Chem 2002; 277:26286-92. [PMID: 12015312 DOI: 10.1074/jbc.m201556200] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Inappropriate activation of the mineralocorticoid receptor (MR) results in renal sodium retention and potassium loss in patients with liver cirrhosis. Recent evidence suggested that this MR activation is, at least in part, a result of bile acid-dependent reduction in 11 beta-hydroxysteroid dehydrogenase type 2 (11 beta HSD2) activity, an enzyme preventing cortisol-dependent activation of MR by converting cortisol to cortisone. Here, we investigated the molecular mechanisms underlying bile acid-mediated MR activation. Analysis of urinary bile acids from 12 patients with biliary obstruction revealed highly elevated concentrations of chenodeoxycholic acid (CDCA), cholic acid (CA), and deoxycholic acid (DCA), with average concentrations of 50-80 microm. Although CDCA and DCA both mediated nuclear translocation of MR in the absence of 11 beta HSD2 and steroids in transiently expressing HEK-293 cells, the transcriptional activity of MR was not stimulated. In contrast, CDCA and DCA both inhibited 11 beta HSD2 with IC(50) values of 22 and 38 microm, respectively and caused cortisol-dependent nuclear translocation and increased transcriptional activity of MR. LCA, the bile acid that most efficiently inhibited 11 beta HSD2, was present at very low concentrations in cholestatic patients, whereas the weak inhibitor CA did not cause MR activation. In conclusion, these findings indicate that CDCA, and to a lesser extent DCA, by inhibiting 11 beta HSD2, mediate cortisol-dependent nuclear translocation and transcriptional activation of MR and are responsible at least for a part of the sodium retention and potassium excretion observed in patients with biliary obstruction.
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Affiliation(s)
- Anita T Stauffer
- Division of Nephrology and Hypertension, Department of Clinical Research, University of Berne, 3010 Berne, Switzerland
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Xiu JC, Wu P, Xu JP, Guo Z, Lai W, Zhang Y, Li S, Li J, Liu Y. Effects of long-term enalapril and losartan therapy of heart failure on cardiovascular aldosterone. J Endocrinol Invest 2002; 25:463-8. [PMID: 12035945 DOI: 10.1007/bf03344039] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Plasma aldosterone escape is found during long-term ACE inhibitor therapy of chronic heart failure. Evidence for aldosterone production in cardiovascular tissues raised the question of whether aldosterone escape occurs or not in these tissues. Rats with infarction-induced chronic heart failure were treated with enalapril (20 mg/kg/d) and losartan (15 mg/kg/d) for 20 weeks. Untreated chronic heart failure and sham-operated rats were used as positive and normal controls, respectively. Ex vivo mesenteric artery and heart perfusion, high performance liquid chromatography, and RIA for aldosterone were performed. Chronic heart failure due to myocardial infarction was associated with tissue-specific activation of cardiovascular aldosterone synthesis. In the mesenteric artery, enalapril significantly inhibited aldosterone production compared to untreated, chronic heart failure rats, and losartan lowered aldosterone production to that of sham rats. In myocardium, enalapril failed to significantly inhibit aldosterone production, and losartan significantly inhibited aldosterone production compared to untreated, chronic heart failure rats. These results provide the first evidence that long-term ACE inhibition therapy induces aldosterone escape in myocardium but not in mesenteric artery of chronic heart failure. The angiotensin II subtype 1 receptor blocker losartan tranquilized aldosterone levels in the cardiovascular tissues of chronic heart failure rats.
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Affiliation(s)
- J C Xiu
- Department of Cardiology, Nan Fang Hospital, The First Military Medical University, Guangzhou, People's Republic of China
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