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Echouffo-Tcheugui JB, Zhang S, McEvoy JW, Juraschek SP, Coresh J, Christenson RH, Ndumele CE, Selvin E. Body Composition Measures and N-terminal pro-B-type Natriuretic Peptide (NT-pro-BNP) in US Adults. Clin Chem 2023; 69:901-914. [PMID: 37477552 PMCID: PMC10478300 DOI: 10.1093/clinchem/hvad085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 05/10/2023] [Indexed: 07/22/2023]
Abstract
BACKGROUND The associations of N-terminal pro-B-type natriuretic peptide (NT-pro-BNP) with dual energy x-ray absorptiometry (DEXA)-derived measures of body mass and composition are largely unknown. METHODS We included participants aged ≥20 years from the 1999-2004 National Health and Nutrition Examination Survey with NT-pro-BNP and DEXA-derived body composition (fat and lean mass) measures. We used linear and logistic regression to characterize the associations of measures of body mass and composition (body mass index [BMI], waist circumference [WC], fat mass, and lean mass) with NT-pro-BNP, adjusting for cardiovascular risk factors. RESULTS We conducted sex-specific analyses among 9134 adults without cardiovascular disease (mean age 44.4 years, 50.8% women, and 72% White adults). The adjusted mean NT-proBNP values were lowest in the highest quartiles of BMI, WC, fat mass, and lean mass. There were large adjusted absolute differences in NT-pro-BNP between the highest and lowest quartiles of DEXA-derived lean mass, -6.26 pg/mL (95% confidence interval [CI], -8.99 to -3.52) among men and -22.96 pg/mL (95% CI, -26.83 to -19.09) among women. Lean mass exhibited a strong inverse association with elevated NT-pro-BNP ≥ 81.4 pg/mL (highest quartile) - odds ratio (OR) 0.58 (95% CI, 0.39-0.86) in men and OR 0.59 (95% CI, 0.47-0.73) in women for highest lean mass quartile vs. lowest quartile. Further adjustment for fat mass, BMI, or WC did not appreciably alter the inverse association of lean mass with NT-pro-BNP. CONCLUSIONS In a national sample of US adults, lean mass was inversely associated with NT-pro-BNP.
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Affiliation(s)
- Justin B. Echouffo-Tcheugui
- Division of Endocrinology, Diabetes & Metabolism, Department of Medicine, Johns Hopkins University, Baltimore, MD, United States
| | - Sui Zhang
- Department of Epidemiology and the Welch Center for Prevention, Epidemiology, and Clinical Research, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
| | - John W. McEvoy
- Division of Cardiology and National Institute for Prevention and Cardiovascular Health, National University of Ireland, Galway, Ireland
| | - Stephen P. Juraschek
- Division of General Internal Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
| | - Josef Coresh
- Department of Epidemiology and the Welch Center for Prevention, Epidemiology, and Clinical Research, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
| | - Robert H. Christenson
- Department of Pathology, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Chiadi E. Ndumele
- Division of Cardiology, Department of Medicine, Department of Medicine, Johns Hopkins University, Baltimore, MD, United States
| | - Elizabeth Selvin
- Department of Epidemiology and the Welch Center for Prevention, Epidemiology, and Clinical Research, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
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Egom EEA. Natriuretic Peptide Clearance Receptor (NPR-C) Pathway as a Novel Therapeutic Target in Obesity-Related Heart Failure With Preserved Ejection Fraction (HFpEF). Front Physiol 2021; 12:674254. [PMID: 34093235 PMCID: PMC8176210 DOI: 10.3389/fphys.2021.674254] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 04/12/2021] [Indexed: 01/08/2023] Open
Abstract
Heart failure (HF) with preserved ejection fraction (HFpEF) is a major public health problem with cases projected to double over the next two decades. There are currently no US Food and Drug Administration–approved therapies for the health-related outcomes of HFpEF. However, considering the high prevalence of this heterogeneous syndrome, a directed therapy for HFpEF is one the greatest unmet needs in cardiovascular medicine. Additionally, there is currently a lack of mechanistic understanding about the pathobiology of HFpEF. The phenotyping of HFpEF patients into pathobiological homogenous groups may not only be the first step in understanding the molecular mechanism but may also enable the development of novel targeted therapies. As obesity is one of the most common comorbidities found in HFpEF patients and is associated with many cardiovascular effects, it is a viable candidate for phenotyping. Large outcome trials and registries reveal that being obese is one of the strongest independent risk factors for developing HFpEF and that this excess risk may not be explained by traditional cardiovascular risk factors. Recently, there has been increased interest in the intertissue communication between adipose tissue and the heart. Evidence suggests that the natriuretic peptide clearance receptor (NPR-C) pathway may play a role in the development and pathobiology of obesity-related HFpEF. Therefore, therapeutic manipulations of the NPR-C pathway may represent a new pharmacological strategy in the context of underlying molecular mechanisms.
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Affiliation(s)
- Emmanuel Eroume A Egom
- Institut du Savoir Montfort, Hôpital Montfort, University of Ottawa, Ottawa, ON, Canada.,Laboratory of Endocrinology and Radioisotopes, Institute of Medical Research and Medicinal Plants Studies, Yaoundé, Cameroon
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3
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Birukov A, Eichelmann F, Kuxhaus O, Polemiti E, Fritsche A, Wirth J, Boeing H, Weikert C, Schulze MB. Opposing Associations of NT-proBNP With Risks of Diabetes and Diabetes-Related Complications. Diabetes Care 2020; 43:2930-2937. [PMID: 32816995 PMCID: PMC7770272 DOI: 10.2337/dc20-0553] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 07/23/2020] [Indexed: 02/03/2023]
Abstract
OBJECTIVE Circulating N-terminal pro B-type natriuretic peptide (NT-proBNP) is a classic diagnostic and prognostic marker for heart failure. However, it is inversely associated with diabetes risk. We aimed to investigate relationships of NT-proBNP with risk of diabetes-related complications in initially healthy individuals. RESEARCH DESIGN AND METHODS We performed a case-cohort study within the European Prospective Investigation Into Cancer and Nutrition (EPIC)-Potsdam cohort including a random subcohort (n = 1,294) and incident cases of type 2 diabetes (n = 649) and cardiovascular diseases (n = 478). Incident cases of type 2 diabetes (n = 545) were followed up for microvascular (n = 133) and macrovascular (n = 50) complications. Plasma NT-proBNP was measured at baseline in initially healthy participants. RESULTS In multivariable models, NT-proBNP was linearly inversely associated with incident type 2 diabetes with a hazard ratio (HR) (95% CI) per doubling in NT-proBNP of 0.91 (0.86, 0.98). The association was only observable in women (0.80 [0.72, 0.90]) compared with men (0.98 [0.91, 1.07]). Among people with incident diabetes, NT-proBNP was positively associated with diabetes complications: overall, 1.31 (1.13, 1.53); microvascular complications, 1.20 (1.01, 1.43); and macrovascular complications, 1.37 (1.03, 1.83). CONCLUSIONS Although higher NT-proBNP levels are associated with lower diabetes risk, NT-proBNP is a biomarker for vascular complications in people who develop diabetes independent of potential confounders. Thus, NT-proBNP might be informative to monitor risk for diabetes-related microvascular and macrovascular complications, which should be further explored in future prospective studies.
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Affiliation(s)
- Anna Birukov
- Department of Molecular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbrücke, Nuthetal, Germany.,German Center for Diabetes Research, München-Neuherberg, Germany
| | - Fabian Eichelmann
- Department of Molecular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbrücke, Nuthetal, Germany.,German Center for Diabetes Research, München-Neuherberg, Germany
| | - Olga Kuxhaus
- Department of Molecular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbrücke, Nuthetal, Germany
| | - Elli Polemiti
- Department of Molecular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbrücke, Nuthetal, Germany.,German Center for Diabetes Research, München-Neuherberg, Germany
| | - Andreas Fritsche
- Division of Endocrinology, Diabetology, Nephrology, Vascular Disease and Clinical Chemistry, Department of Internal Medicine, University of Tübingen, Tübingen, Germany
| | - Janine Wirth
- Institute of Food and Health, School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, Ireland
| | - Heiner Boeing
- Department of Epidemiology, German Institute of Human Nutrition Potsdam-Rehbrücke, Nuthetal, Germany
| | - Cornelia Weikert
- Department of Food Safety, German Federal Institute for Risk Assessment, Berlin, Germany
| | - Matthias B Schulze
- Department of Molecular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbrücke, Nuthetal, Germany .,German Center for Diabetes Research, München-Neuherberg, Germany.,Germany Institute of Nutrition Science, University of Potsdam, Nuthetal, Germany
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4
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Strauss-Kruger M, Kruger R, Smith W, Gafane-Matemane LF, Mokwatsi G, Wei W, Fedorova OV, Schutte AE. The Cardiotonic Steroid Marinobufagenin Is a Predictor of Increased Left Ventricular Mass in Obesity: The African-PREDICT Study. Nutrients 2020; 12:E3185. [PMID: 33081045 PMCID: PMC7603247 DOI: 10.3390/nu12103185] [Citation(s) in RCA: 5] [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: 09/29/2020] [Revised: 10/14/2020] [Accepted: 10/15/2020] [Indexed: 12/19/2022] Open
Abstract
The endogenous Na+/K+-ATPase inhibitor, marinobufagenin (MBG), strongly associates with salt intake and a greater left ventricular mass index (LVMi) in humans and was shown to promote cardiac fibrosis and hypertrophy in animals. The adverse effects of MBG on cardiac remodeling may be exacerbated with obesity, due to an increased sensitivity of Na+/K+-ATPase to MBG. This study determined whether MBG is related to the change in LVMi over time in adults with a body mass index (BMI) ≥30 kg/m2 (obese) and <30 kg/m2 (non-obese). The study followed 275 healthy participants (aged 20-30 years) from the African-Prospective study on the Early Detection and Identification of Cardiovascular disease and Hypertension (African-PREDICT) study over 4.5 years. At baseline, we measured 24 h urine MBG excretion. MBG levels were positively associated with salt intake. LVMi was determined by two-dimensional echocardiography at baseline and after >4.5 years. With multivariate adjusted analyses in obese adults (N = 56), we found a positive association of follow-up LVMi (Adjusted (Adj.) R2 = 0.35; Std. β = 0.311; p = 0.007) and percentage change in LVMi (Adj. R2 = 0.40; Std. β = 0.336; p = 0.003) with baseline MBG excretion. No association of LVMi (Adj. R2 = 0.37; p = 0.85) or percentage change in LVMi (Adj. R2 = 0.19; p = 0.68) with MBG excretion was evident in normal weight adults (N = 123). These findings suggest that obese adults may be more sensitive to the adverse cardiac effects of MBG and provide new insight into the potential role of dietary salt, by way of MBG, in the pathogenesis of cardiac remodeling in obese individuals.
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Affiliation(s)
- Michél Strauss-Kruger
- Hypertension in Africa Research Team (HART), North-West University, Potchefstroom 2520, South Africa; (M.S.-K.); (R.K.); (W.S.); (L.F.G.-M.); (G.M.)
| | - Ruan Kruger
- Hypertension in Africa Research Team (HART), North-West University, Potchefstroom 2520, South Africa; (M.S.-K.); (R.K.); (W.S.); (L.F.G.-M.); (G.M.)
- MRC Research Unit for Hypertension and Cardiovascular Disease, North-West University, Potchefstroom 2520, South Africa
| | - Wayne Smith
- Hypertension in Africa Research Team (HART), North-West University, Potchefstroom 2520, South Africa; (M.S.-K.); (R.K.); (W.S.); (L.F.G.-M.); (G.M.)
- MRC Research Unit for Hypertension and Cardiovascular Disease, North-West University, Potchefstroom 2520, South Africa
| | - Lebo F. Gafane-Matemane
- Hypertension in Africa Research Team (HART), North-West University, Potchefstroom 2520, South Africa; (M.S.-K.); (R.K.); (W.S.); (L.F.G.-M.); (G.M.)
- MRC Research Unit for Hypertension and Cardiovascular Disease, North-West University, Potchefstroom 2520, South Africa
| | - Gontse Mokwatsi
- Hypertension in Africa Research Team (HART), North-West University, Potchefstroom 2520, South Africa; (M.S.-K.); (R.K.); (W.S.); (L.F.G.-M.); (G.M.)
- MRC Research Unit for Hypertension and Cardiovascular Disease, North-West University, Potchefstroom 2520, South Africa
| | - Wen Wei
- National Institute on Aging, NIH, Baltimore, MD 212242, USA; (W.W.); (O.V.F.)
| | - Olga V. Fedorova
- National Institute on Aging, NIH, Baltimore, MD 212242, USA; (W.W.); (O.V.F.)
| | - Aletta E. Schutte
- Hypertension in Africa Research Team (HART), North-West University, Potchefstroom 2520, South Africa; (M.S.-K.); (R.K.); (W.S.); (L.F.G.-M.); (G.M.)
- MRC Research Unit for Hypertension and Cardiovascular Disease, North-West University, Potchefstroom 2520, South Africa
- School of Population Health, University of New South Wales, The George Institute for Global Health, Sydney 2052, Australia
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5
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Xu X, Yan Q, Liu X, Li P, Li X, Chen Y, Simoncini T, Liu J, Zhu D, Fu X. 17β-Estradiol nongenomically induces vascular endothelial H 2S release by promoting phosphorylation of cystathionine γ-lyase. J Biol Chem 2019; 294:15577-15592. [PMID: 31439665 DOI: 10.1074/jbc.ra119.008597] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Revised: 08/13/2019] [Indexed: 12/12/2022] Open
Abstract
Estrogen exerts its cardiovascular protective role at least in part by regulating endothelial hydrogen sulfide (H2S) release, but the underlying mechanisms remain to be fully elucidated. Estrogen exerts genomic effects, i.e. those involving direct binding of the estrogen receptor (ER) to gene promoters in the nucleus, and nongenomic effects, mediated by interactions of the ER with other proteins. Here, using human umbilical vein endothelial cells (HUVECs), immunological detection, MS-based analyses, and cGMP and H2S assays, we show that 17β-estradiol (E2) rapidly enhances endothelial H2S release in a nongenomic manner. We found that E2 induces phosphorylation of cystathionine γ-lyase (CSE), the key enzyme in vascular endothelial H2S generation. Mechanistically, E2 enhanced the interaction of membrane ERα with the Gα subunit Gαi-2/3, which then transactivated particulate guanylate cyclase-A (pGC-A) to produce cGMP, thereby activating protein kinase G type I (PKG-I). We also found that PKG-Iβ, but not PKG-Iα, interacts with CSE, leading to its phosphorylation, and rapidly induces endothelial H2S release. Furthermore, we report that silencing of either CSE or pGC-A in mice attenuates E2-induced aorta vasodilation. These results provide detailed mechanistic insights into estrogen's nongenomic effects on vascular endothelial H2S release and advance our current understanding of the protective activities of estrogen in the cardiovascular system.
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Affiliation(s)
- Xingyan Xu
- Department of Gynecology and Obstetrics, The Sixth Affiliated Hospital, Guangzhou Medical University, Guangzhou 510260, China.,State Key Laboratory of Respiratory Disease, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China
| | - Qing Yan
- Department of Gynecology and Obstetrics, The Sixth Affiliated Hospital, Guangzhou Medical University, Guangzhou 510260, China.,State Key Laboratory of Respiratory Disease, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China
| | - Xiaoyun Liu
- Department of Gynecology and Obstetrics, The Sixth Affiliated Hospital, Guangzhou Medical University, Guangzhou 510260, China.,State Key Laboratory of Respiratory Disease, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China
| | - Ping Li
- Department of Gynecology and Obstetrics, The Sixth Affiliated Hospital, Guangzhou Medical University, Guangzhou 510260, China.,State Key Laboratory of Respiratory Disease, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China
| | - Xiaosa Li
- Department of Gynecology and Obstetrics, The Sixth Affiliated Hospital, Guangzhou Medical University, Guangzhou 510260, China.,State Key Laboratory of Respiratory Disease, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China
| | - Yiwen Chen
- Department of Gynecology and Obstetrics, The Sixth Affiliated Hospital, Guangzhou Medical University, Guangzhou 510260, China.,State Key Laboratory of Respiratory Disease, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China
| | - Tommaso Simoncini
- Molecular and Cellular Gynecological Endocrinology Laboratory (MCGEL), Department of Reproductive Medicine and Child Development, University of Pisa, Pisa 56100, Italy
| | - Junxiu Liu
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Dongxing Zhu
- Department of Gynecology and Obstetrics, The Sixth Affiliated Hospital, Guangzhou Medical University, Guangzhou 510260, China .,State Key Laboratory of Respiratory Disease, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China
| | - Xiaodong Fu
- Department of Gynecology and Obstetrics, The Sixth Affiliated Hospital, Guangzhou Medical University, Guangzhou 510260, China .,State Key Laboratory of Respiratory Disease, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China
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6
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Goncalves GK, Caldeira de Oliveira TH, de Oliveira Belo N. Cardiac Hypertrophy and Brain Natriuretic Peptide Levels in an Ovariectomized Rat Model Fed a High-Fat Diet. Med Sci Monit Basic Res 2017; 23:380-391. [PMID: 29249795 PMCID: PMC5747295 DOI: 10.12659/msmbr.907162] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Heart failure in women increases around the time of menopause when high-fat diets may result in obesity. The heart produces brain natriuretic peptide (BNP), also known as B-type natriuretic peptide. This aims of this study were to assess cardiac hypertrophy and BNP levels in ovariectomized rats fed a high-fat diet. MATERIAL AND METHODS Forty-eight female Wistar rats were divided into four groups: sham-operated rats fed a control diet (SC) (n=12); ovariectomized rats fed a control diet (OC) (n=12); sham-operated rats fed a high-fat diet (SF) (n=12); and ovariectomized rats fed a high-fat diet (OF) (n=12). Body weight and blood pressure were measured weekly for 24 weeks. Rats were then euthanized, and plasma samples and heart tissue were studied for gene expression, hydroxyproline levels, and histological examination. RESULTS A high-fat diet and ovariectomy (group OF) increased the weight body and the systolic blood pressure after three months and five months, respectively. Cardiomyocyte hypertrophy was associated with increased expression of ventricular BNP, decreased natriuretic peptide receptor (NPR)-A and increased levels of hydroxyproline and transforming growth factor (TGF)-β. The plasma levels of BNP and estradiol were inversely correlated; expression of estrogen receptor (ER)β and ERα were reduced. CONCLUSIONS The findings of this study showed that, in the ovariectomized rats fed a high-fat diet, the BNP-NPR-A receptor complex was involved in cardiac remodeling. BNP may be a marker of cardiac hypertrophy in this animal model.
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Affiliation(s)
- Gleisy Kelly Goncalves
- Department of Physiology and Biophysic, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | | | - Najara de Oliveira Belo
- Multidisciplinar Institute of Health, Federal University of Bahia, Vitória da Conquista, BA, Brazil
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7
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Frank AP, Palmer BF, Clegg DJ. Do estrogens enhance activation of brown and beiging of adipose tissues? Physiol Behav 2017; 187:24-31. [PMID: 28988965 DOI: 10.1016/j.physbeh.2017.09.026] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 09/30/2017] [Accepted: 09/30/2017] [Indexed: 01/05/2023]
Abstract
Obesity and its associated co-morbidities are worldwide public health concerns. Obesity is characterized by excessive adipose tissue accumulation; however, it is important to recognize that human and rodent adipose tissues are made up of several distinct adipose tissue sub-types. White adipose tissue (WAT) is considered the prototypical fat cell, due to its capacity and capability to store large amounts of lipid. In contrast, brown adipose tissue (BAT) oxidizes substrates to generate heat. BAT contains more mitochondria than WAT and express uncoupling protein-1 (UCP1), which mediates BAT thermogenesis. A third sub-type of adipose tissue, Brown-in-white (BRITE)/beige adipocytes arise from WAT upon adrenergic stimulation and resembles BAT functionally. The energy burning feature of BAT/beige cells, combined with evidence of an inverse-correlation between BAT/beige adipose tissue and obesity have given rise to the hypothesis that obesity may be linked to BAT/beige 'malfunction'. Females have more BAT and perhaps an enhanced capacity to beige their adipose tissue when compared to males. Multiple signal pathways are capable of activating BAT thermogenesis and beiging of WAT; here, we discuss the potential role of estrogens in enhancing and mediating these factors to enhance adipose tissue thermogenesis.
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Affiliation(s)
- Aaron P Frank
- Biomedical Research Division, Diabetes and Obesity Research Institute, Department of Biomedical Science, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Biff F Palmer
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Deborah J Clegg
- Biomedical Research Division, Diabetes and Obesity Research Institute, Department of Biomedical Science, Cedars-Sinai Medical Center, Los Angeles, CA, United States.
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8
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Palmer BF, Clegg DJ. Non-shivering thermogenesis as a mechanism to facilitate sustainable weight loss. Obes Rev 2017; 18:819-831. [PMID: 28547916 DOI: 10.1111/obr.12563] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 04/18/2017] [Accepted: 04/19/2017] [Indexed: 01/01/2023]
Abstract
Currently, there is a significant percentage of the population who are or will be classified as obese, necessitating novel strategies to facilitate sustainable weight loss. Reductions in basal metabolic rate occur in the face of weight loss and pose formidable barriers to individuals attempting to sustain meaningful weight reductions. Here, we discuss the mechanisms by which non-shivering thermogenesis may provide insight into metabolic pathways that can become druggable targets to facilitate sustainable weight loss. Specifically, we highlight the fact that non-shivering thermogenesis results in activation and expansion of brown and beige adipose tissues as well as activates pathways in skeletal muscle which increase metabolic flux and activity of muscle fibres through futile calcium cycling across the endoplasmic reticulum all facilitating an increase in metabolism. Finally, we highlight the fact there are sexual dimorphisms with respect to these metabolic processes in keeping with the National Institutes of Health mandate of treating sex as a biologic variable.
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Affiliation(s)
- B F Palmer
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - D J Clegg
- Biomedical Research Department, Diabetes and Obesity Research Division, Cedars-Sinai Medical Center, Los Angeles, California, USA
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9
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Palmer BF, Clegg DJ. An Emerging Role of Natriuretic Peptides: Igniting the Fat Furnace to Fuel and Warm the Heart. Mayo Clin Proc 2015; 90:1666-78. [PMID: 26518101 DOI: 10.1016/j.mayocp.2015.08.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 08/08/2015] [Accepted: 08/13/2015] [Indexed: 01/05/2023]
Abstract
Natriuretic peptides are produced in the heart and have been well characterized for their actions in the cardiovascular system to promote diuresis and natriuresis, thereby contributing to maintenance of extracellular fluid volume and vascular tone. For this review, we scanned the literature using PubMed and MEDLINE using the following search terms: beiging, adipose tissue, natriuretic peptides, obesity, and metabolic syndrome. Articles were selected for inclusion if they represented primary data or review articles published from 1980 to 2015 from high-impact journals. With the advent of the newly approved class of drugs that inhibit the breakdown of natriuretic peptides, thereby increasing their circulation, we highlight additional functions for natriuretic peptides that have recently become appreciated, including their ability to drive lipolysis, facilitate beiging of adipose tissues, and promote lipid oxidation and mitochondrial respiration in skeletal muscle. We provide evidence for new roles for natriuretic peptides, emphasizing their ability to participate in body weight regulation and energy homeostasis and discuss how they may lead to novel strategies to treat obesity and the metabolic syndrome.
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Affiliation(s)
- Biff F Palmer
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX
| | - Deborah J Clegg
- Biomedical Research Department, Diabetes and Obesity Research Institute, Cedars-Sinai Medical Center, Beverly Hills, CA.
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11
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Isacco L, Thivel D, Meddahi-Pelle A, Lemoine-Morel S, Duclos M, Boisseau N. Exercise per se masks oral contraceptive-induced postprandial lipid mobilization. Appl Physiol Nutr Metab 2014; 39:1222-9. [DOI: 10.1139/apnm-2014-0053] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Because of their hormonal content, oral contraceptives may alter lipolytic activity under resting or exercise conditions in women. The aim of the present study was to compare lipid mobilization in a postprandial state at rest and during exercise in oral contraceptive users (OC+) versus nonusers (OC–). The metabolic (glucose, glycerol, free fatty acids) and hormonal (insulin, atrial natriuretic peptide (ANP), growth hormone, insulin-like growth factor-1 (IGF-1), and catecholamines) concentrations were determined in 11 OC+ (monophasic low-dose oral contraceptives) and 10 OC– during a resting and an exercise session (45 min at 65% maximal oxygen consumption). Results were expressed as plasma concentrations and area under the concentration versus time curve values. ANP concentrations were higher in OC+ compared with OC– women at baseline (p = 0.04). Plasma concentrations of glycerol (p = 0.04), free fatty acids (p = 0.04), ANP (p = 0.02), and noradrenaline (p = 0.04) were higher in OC+ compared with OC– when both sessions were pooled. The plasma growth hormone, IGF-1, and adrenaline concentrations were not significantly different between the 2 groups. When the effect of exercise was isolated to overcome food intake and daytime variations (exercise per se using the area under the curve), no difference was observed between groups for all metabolic and hormonal variables. Overall, oral contraceptives increased lipid mobilization in the postprandial state, but this effect was blunted when lipolytic activity was stimulated by exercise per se. Oral contraceptive-induced greater lipolytic mobilization could be partly explained by greater ANP levels in OC users.
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Affiliation(s)
- Laurie Isacco
- Laboratory Culture Sport Health Society, and Exercise Performance, Health, Innovation Platform, Franche-Comte University, F-25000 Besançon, France
| | - David Thivel
- Laboratory of Metabolic Adaptations to Exercise in Physiological and Pathological Conditions, Clermont University, Blaise Pascal University BP 10448, F-63000 Clermont-Ferrand, France
- Centre de Recherche en Nutrition Humaine (CRNH)-Auvergne, Clermont-Ferrand, F-63001 France
| | - Anne Meddahi-Pelle
- Bioengineering for Cardiovascular Imaging and Therapy, Institut National de la Santé Et de la Recherche Médicale (INSERM) U698, 46 rue Huchard, 75018 Paris, France
- Paris University 13, Institut Universitaire de Technologie (IUT) of Saint-Denis, France
| | - Sophie Lemoine-Morel
- Laboratory Movement Sport and Health Sciences, University of Rennes 2, Avenue Charles Tillon, 35044 Rennes Cedex, France
| | - Martine Duclos
- Centre de Recherche en Nutrition Humaine (CRNH)-Auvergne, Clermont-Ferrand, F-63001 France
- Department of Sport Medicine and Functional Explorations, Clermont-Ferrand University Hospital (CHU), G. Montpied Hospital, Clermont-Ferrand, F-63003 France
- Institut National de la Recherche Agronomique (INRA), Clermont-Ferrand, F-63001 France
- Department of Medicine, University Clermont 1, Clermont-Ferrand, F-63001 France
| | - Nathalie Boisseau
- Laboratory of Metabolic Adaptations to Exercise in Physiological and Pathological Conditions, Clermont University, Blaise Pascal University BP 10448, F-63000 Clermont-Ferrand, France
- Centre de Recherche en Nutrition Humaine (CRNH)-Auvergne, Clermont-Ferrand, F-63001 France
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12
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Casanova G, dos Reis AM, Spritzer PM. Low-dose oral or non-oral hormone therapy: effects on C-reactive protein and atrial natriuretic peptide in menopause. Climacteric 2014; 18:86-93. [PMID: 25017924 DOI: 10.3109/13697137.2014.940309] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE To assess the effects of oral low-dose and non-oral hormone therapy (HT) on ultra-sensitive C-reactive protein (CRP), atrial natriuretic peptide (ANP), and cardiovascular risk factors in postmenopause. METHODS In this randomized, cross-over study, 44 recently postmenopausal women, with no clinical evidence of cardiovascular disease, received oral low-dose HT (estradiol 1 mg + drospirenone 2 mg/day) for 3 months. Forty-two patients received non-oral, conventional HT (1.5 mg/day percutaneous 17β-estradiol gel or equivalent for nasal route) for 3 months followed by 200 mg/day micronized progesterone by the vaginal route (14 days during each menstrual period). After 3 months, patients were crossed over without washout. Post-HT vs. pre-HT measures were determined: lipids, glucose, body mass index, waist circumference, fibrinogen, CRP-stratified levels, and ANP levels. The study was registered at clinical trials.gov (NCT01432028). RESULTS The mean age was 51 ± 3 years and the mean time since the menopause was 22 ± 10 months. CRP-stratified high levels decreased in a higher number of non-oral HT patients, who moved to intermediate and low levels (p = 0.02). No effect of HT was observed on ANP levels (baseline 67.4 (18.4-104.5), low-dose oral 43.5 (14.4-95.9), non-oral 39.8 (15.5-67.5) pg/ml). Markers of endothelial function did not worsen with either low-dose oral or non-oral HT: von Willebrand factor (baseline 118 ± 37%, low-dose oral 119 ± 38%, non-oral 108 ± 3%, p < 0.01), fibrinogen (baseline 356 ± 58 mg/dl; low-dose oral 343 ± 77 mg/dl; non-oral 326 ± 71 mg/dl, p < 0.01). CONCLUSIONS Low-dose oral and non-oral HT for 6 months had neutral or beneficial effects in recently postmenopausal women with no clinical evidence of cardiovascular disease.
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Affiliation(s)
- G Casanova
- * Gynecological Endocrinology Unit, Division of Endocrinology, Hospital de Clínicas de Porto Alegre , Porto Alegre , Brazil
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13
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Souza RRD, Oliveira VCD, Curi TCP, Maldonado DC. Effects of ovariectomy on the secretory apparatus in the right atrial cardiomyocytes of middle-aged mice. Clinics (Sao Paulo) 2014; 69:554-8. [PMID: 25141115 PMCID: PMC4129560 DOI: 10.6061/clinics/2014(08)09] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Accepted: 02/28/2014] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVE The aim of the present study was to evaluate the effects of ovariectomy on the secretory apparatus of natriuretic peptides in right atrial cardiomyocytes. METHODS Nine-month-old mice underwent bilateral ovariectomy or sham surgery. The blood exam of the ovariectomized mice showed results consistent with castrated females. Systolic blood pressure was measured after ovariectomy (9 mo of age) and at the moment of sacrifice (12 mo of age). Fragments of the right atrium were collected and prepared for electron microscopy examination. The following variables were quantified: the quantitative density and area of the natriuretic peptide granules, the relative volume of euchromatin in the nucleus, the number of pores per 10 μm of the nuclear membrane and the relative volumes of the mitochondria and Golgi complex. RESULTS The cardiomyocytes obtained from ovariectomized mice indicated that the quantitative density and the area of secretory granules of natriuretic peptides were significantly lower compared with the sham-operated mice. Furthermore, there was a decrease in the relative volume of euchromatin, a lower density of nuclear pores, and lower relative volumes of the mitochondria and Golgi complex in the ovariectomized mice compared with the sham-operated mice. These findings suggest a pool with a low turnover rate, i.e., low synthesis and elimination of natriuretic peptides. CONCLUSION A lack of estrogen caused hypotrophy of the secretory apparatus in right atrial cardiomyocytes that could explain the weak synthesis of natriuretic peptides in mice. Furthermore, one of the mechanisms of blood pressure control was lost, which may explain, in part, the elevated blood pressure in ovariectomized mice.
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Affiliation(s)
- Romeu R de Souza
- ICB-USP and Department of Biology, Department of Anatomy, São Judas Tadeu University, São Paulo, SP, Brazil
| | | | | | - Diogo C Maldonado
- Department of Anatomy, Federal University of São Paulo, Department of Morphology and Genetics and Nove de Julho University, São Paulo, SP, Brazil
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Schlueter N, de Sterke A, Willmes DM, Spranger J, Jordan J, Birkenfeld AL. Metabolic actions of natriuretic peptides and therapeutic potential in the metabolic syndrome. Pharmacol Ther 2014; 144:12-27. [PMID: 24780848 DOI: 10.1016/j.pharmthera.2014.04.007] [Citation(s) in RCA: 103] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Accepted: 04/14/2014] [Indexed: 12/26/2022]
Abstract
Natriuretic peptides (NPs) are a group of peptide-hormones mainly secreted from the heart, signaling via c-GMP coupled receptors. NP are well known for their renal and cardiovascular actions, reducing arterial blood pressure as well as sodium reabsorption. Novel physiological functions have been discovered in recent years, including activation of lipolysis, lipid oxidation, and mitochondrial respiration. Together, these responses promote white adipose tissue browning, increase muscular oxidative capacity, particularly during physical exercise, and protect against diet-induced obesity and insulin resistance. Exaggerated NP release is a common finding in congestive heart failure. In contrast, NP deficiency is observed in obesity and in type-2 diabetes, pointing to an involvement of NP in the pathophysiology of metabolic disease. Based upon these findings, the NP system holds the potential to be amenable to therapeutical intervention against pandemic diseases such as obesity, insulin resistance, and arterial hypertension. Various therapeutic approaches are currently under development. This paper reviews the current knowledge on the metabolic effects of the NP system and discusses potential therapeutic applications.
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Affiliation(s)
- Nina Schlueter
- Department of Endocrinology, Diabetes and Nutrition, Center for Cardiovascular Research, Charité, University School of Medicine, Berlin, Germany
| | - Anita de Sterke
- Department of Endocrinology, Diabetes and Nutrition, Center for Cardiovascular Research, Charité, University School of Medicine, Berlin, Germany
| | - Diana M Willmes
- Department of Endocrinology, Diabetes and Nutrition, Center for Cardiovascular Research, Charité, University School of Medicine, Berlin, Germany
| | - Joachim Spranger
- Department of Endocrinology, Diabetes and Nutrition, Center for Cardiovascular Research, Charité, University School of Medicine, Berlin, Germany
| | - Jens Jordan
- Institute of Clinical Pharmacology, Hannover Medical School, Hannover, Germany
| | - Andreas L Birkenfeld
- Department of Endocrinology, Diabetes and Nutrition, Center for Cardiovascular Research, Charité, University School of Medicine, Berlin, Germany.
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15
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Meirelles RMR. Menopausa e síndrome metabólica. ACTA ACUST UNITED AC 2014; 58:91-6. [DOI: 10.1590/0004-2730000002909] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Accepted: 11/25/2013] [Indexed: 01/22/2023]
Abstract
A incidência de doença cardiovascular aumenta consideravelmente após a menopausa. Um dos motivos para o crescente risco cardiovascular parece ser determinado pela síndrome metabólica, da qual todos os componentes (obesidade visceral, dislipidemia, hipertensão arterial e distúrbio do metabolismo glicídico) se associam à maior incidência de coronariopatia. Após a menopausa, a síndrome metabólica é mais prevalente do que na pré-menopausa, podendo ter importante papel na ocorrência de infarto do miocárdio e outras morbidades ateroscleróticas e cardiovasculares. A obesidade, componente primordial da síndrome metabólica, se associa ainda ao aumento da incidência de câncer de mama, endométrio, intestino, esôfago e rim. O tratamento da síndrome metabólica se baseia na mudança de hábitos de vida e, quando necessário, no emprego de medicação dirigida aos seus componentes. Na presença de sintomas de síndrome do climatério, a terapia hormonal, quando indicada, concorrerá também para a melhora da síndrome metabólica.
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Gangula PR, Dong YL, Al-Hendy A, Richard-Davis G, Montgomery-Rice V, Haddad G, Millis R, Nicholas SB, Moseberry D. Protective cardiovascular and renal actions of vitamin D and estrogen. Front Biosci (Schol Ed) 2013; 5:134-48. [PMID: 23277041 PMCID: PMC3673780 DOI: 10.2741/s362] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Both basic science and clinical studies support the concept that vitamin D deficiency is involved in the pathogenesis of cardiovascular and renal diseases through its association with diabetes, obesity, and hypertension. Understanding the underlying mechanisms may provide a rationale for advocating adequate intake of vitamin D and calcium in all populations, thereby preventing many chronic diseases. This review explores the effect of vitamin D deficiency in the development of cardiovascular and renal diseases, and the role of vitamin D supplementation on cardiovascular outcomes. In addition, it highlights the importance of vitamin D intake for the prevention of adverse long-term health consequences, and in ways to facilitate the management of cardiovascular disease. This is particularly true for African American and postmenopausal women, who are at added risk for cardiovascular disease. We suggest that the negative cardiovascular effects of low vitamin D in postmenopausal women could be improved by a combined treatment of vitamin D and sex steroids acting through endothelium-dependent and/or -independent mechanisms, resulting in the generation of nitric oxide and calcitonin gene-related peptide (CGRP).
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Affiliation(s)
- Pandu R Gangula
- Departments of Physiology, Meharry Medical College, Nashville, TN 37208, USA.
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Tibolone has anti-inflammatory effects in estrogen-deficient female rats on the natriuretic peptide system and TNF-alpha. ACTA ACUST UNITED AC 2012; 179:55-60. [DOI: 10.1016/j.regpep.2012.08.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2012] [Revised: 08/10/2012] [Accepted: 08/29/2012] [Indexed: 12/24/2022]
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Endlich PW, Firmes LB, Gonçalves WLS, Gouvea SA, Moysés MR, Bissoli NS, Reis AM, Abreu GR. Involvement of the atrial natriuretic peptide in the reduction of arterial pressure induced by swimming but not by running training in hypertensive rats. Peptides 2011; 32:1706-12. [PMID: 21762739 DOI: 10.1016/j.peptides.2011.06.027] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2011] [Revised: 06/28/2011] [Accepted: 06/28/2011] [Indexed: 11/23/2022]
Abstract
The aim of this study was to compare, under resting conditions, the influence of chronic training in swimming or running on mean arterial pressure (MAP) and the involvement of the natriuretic peptide system in this response. Two-month-old male spontaneously hypertensive rats (SHR) were divided into three groups-sedentary (SD), swimming (SW) and running (RN)-and were trained for eight weeks under regimens of similar intensities. Atria tissue and plasma atrial natriuretic peptide (ANP) concentrations were measured by radioimmunoassay. ANP mRNA levels in the right and left atria as well as the natriuretic peptide receptors (NPR), NPR-A and NPR-C, mRNA levels in the kidney were determined by real-time PCR. Autoradiography was used to quantify NPR-A and NPR-C in mesenteric adipose tissue. Both training modalities, swimming and running, reduced the mean arterial pressure (MAP) of SHR. Swimming, but not running, training increased plasma levels of ANP compared to the sedentary group (P<0.05). Expression of ANP mRNA in the left atrium was reduced in the RN compared to the SD group (P<0.05). Expression of NPR-A and NPR-C in the kidneys of the SW group decreased significantly (P<0.05) compared to the SD group. Although swimming increased (125)I-ANP binding to mesenteric adipose tissue, displacement by c-ANF was reduced, indicating a reduction of NPR-C. These results suggest that the MAP reduction induced by exercise in SHR differs in its mechanisms between the training modalities, as evidenced by the finding that increased levels of ANP were only observed after the swimming regimen.
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Affiliation(s)
- Patrick W Endlich
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espírito Santo, Espírito Santo, Vitória-ES, Brazil.
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de Andrade EN, Gonçalves GKN, de Oliveira THC, Santos CSD, Souza CLSE, Firmes LB, de Magalhães ACM, Soares TDJ, Reis AMD, Belo NDO. Natriuretic peptide system: a link between fat mass and cardiac hypertrophy and hypertension in fat-fed female rats. ACTA ACUST UNITED AC 2011; 167:149-55. [PMID: 21237215 DOI: 10.1016/j.regpep.2010.12.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2010] [Revised: 08/27/2010] [Accepted: 12/29/2010] [Indexed: 11/30/2022]
Abstract
The present study was designed to develop an animal model of hypertension and cardiac hypertrophy associated with obesity in female rats. Furthermore, we studied the involvement of the natriuretic peptide system in the mechanisms of these conditions. Obesity was induced in Wistar rats by a high fat diet and ovariectomy. The rats were divided into four groups: ovariectomized or sham-operated with high-fat diet and ovariectomized or sham-operated with control diet. After 24 weeks of diet, rats were killed, and their tissues were removed. Cardiac atrial natriuretic peptide (ANP), clearance receptor (NPr-C) gene expression was determined by PCR. ANP concentrations were measured in plasma. Ovariectomized fat-fed rats (OF) showed increased body weight, visceral fat depot and blood pressure and decreased sodium excretion compared to other groups. Also, these rats showed higher heart-to-body weight and cell diameters of ventricular cardiomyocytes and lower cardiac ANP mRNA and plasma ANP than the control group. The adipocyte and renal NPr-C mRNA of OF rats were higher than the control group. These data showed that combined ovariectomy and high fat diet elicited obesity, hypertension and cardiac hypertrophy. These results suggest that the impairment of the natriuretic peptide system may be one of the mechanisms involved not only in development of hypertension but also in cardiac hypertrophy associated with obesity in ovariectomized rats.
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Affiliation(s)
- Everaldo Nery de Andrade
- Multidisciplinary Institute of Health, Federal University of Bahia, Av. Olívia Flores 3000, CEP: 45055-090, Vitória da Conquista, Bahia, Brazil
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Rubattu S, Sciarretta S, Morriello A, Calvieri C, Battistoni A, Volpe M. NPR-C: a component of the natriuretic peptide family with implications in human diseases. J Mol Med (Berl) 2010; 88:889-97. [DOI: 10.1007/s00109-010-0641-2] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2010] [Revised: 05/26/2010] [Accepted: 05/31/2010] [Indexed: 12/12/2022]
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21
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Martel G, Hamet P, Tremblay J. Central role of guanylyl cyclase in natriuretic peptide signaling in hypertension and metabolic syndrome. Mol Cell Biochem 2009; 334:53-65. [PMID: 19937369 DOI: 10.1007/s11010-009-0326-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2009] [Accepted: 11/04/2009] [Indexed: 01/05/2023]
Abstract
Studied for nearly 30 years for its ability to control many parameters, such as vascular smooth muscle cell relaxation, heart fibrosis, and kidney function, the natriuretic peptide (NP) system is now considered to be a key element in several other major metabolic pathways. After stimulation by NPs, natriuretic peptide receptors (NPR) convert GTP to the second messenger cGMP. In addition to its vasodilatory effects and natriuretic and diuretic functions, cGMP has been positively associated with fat cell function, apoptosis, and NPR expression/activity modulation. The NP system is also closely linked to metabolic syndrome (MetS) progression and obesity control. A new era is now on its way targeting the NP system to not only treat high blood pressure, but to also assist in the fight against the obesity pandemic. Here, we summarize recent data on the role of NPs in hypertension and MetS.
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Affiliation(s)
- G Martel
- Laboratory of Cellular Biology of Hypertension, Centre for Ecogenomic Models of Human Diseases, Centre de recherche, Centre hospitalier de l'Université de Montréal (CRCHUM), Technopôle Angus, 2901 rue Rachel est, bureau 314, Montreal, QC H1W 4A4, Canada
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Beleigoli AMR, Diniz MFHS, Ribeiro ALP. Natriuretic peptides: linking heart and adipose tissue in obesity and related conditions--a systematic review. Obes Rev 2009; 10:617-26. [PMID: 19563456 DOI: 10.1111/j.1467-789x.2009.00624.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The objective of this study was to investigate the association between natriuretic peptides, obesity and related comorbidities. A systematic review of the English language literature from 1996 to 2008 was performed with Pubmed/MEDLINE and the ISI Web of Knowledge. 'Natriuretic peptides', 'atrial natriuretic factor', 'brain natriuretic peptide', 'obesity', 'body mass index', 'lipolysis' and 'adipose tissue' were used as Mesh terms. We also conducted a handle search among the references of the original articles selected. Finally, seventy-five studies were considered eligible for inclusion in the review. Natriuretic peptides are widely known as body homeostasis regulators. Recently, their action as lipolytic agents has been identified. Obese patients, especially those with hypertension and metabolic risk factors, have reduced plasma levels of natriuretic peptides. Whether this precedes or follows obesity and its complications remains undefined. The lipolytic effect of natriuretic peptides indicates that they may be involved in the pathophysiology of obesity. In general, studies with obese patients support paradoxical reduced levels of natriuretic peptides. However, the selection of subjects and classification of obesity and heart failure varied among the reviewed studies, rendering comparison unreliable.
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Affiliation(s)
- A M R Beleigoli
- Department of Clinical Medicine, Medical School, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.
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Clerico A, Fontana M, Vittorini S, Emdin M. The search for a pathophysiological link between gender, cardiac endocrine function, body mass regulation and cardiac mortality: Proposal for a working hypothesis. Clin Chim Acta 2009; 405:1-7. [DOI: 10.1016/j.cca.2009.03.050] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2009] [Revised: 03/24/2009] [Accepted: 03/25/2009] [Indexed: 11/16/2022]
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Gross DR. Other Transgenic Animal Models Used in Cardiovascular Studies. ANIMAL MODELS IN CARDIOVASCULAR RESEARCH 2009. [PMCID: PMC7121723 DOI: 10.1007/978-0-387-95962-7_14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Previous chapters have described a large number of transgenic animal models used to study specific cardiovascular syndromes. This chapter will fill in some gaps. Many of these transgenic animals were developed to study normal and/or abnormal physiological responses in other organ systems, or to study basic biochemical and molecular reactions or pathways. These models were then discovered to also have effects on the cardiovascular system, some of them unanticipated. A word of caution, particularly when highly inbred mouse strains are used to develop transgenic models - not all strains of a particular species are created equal. When cardiovascular parameters of age- and sex-matched A/J and C57BL/6J inbred mice were compared the C57BL/6J mice demonstrated eccentric physiologic ventricular hypertrophy, increased ventricular function, lower heart rates, and increased exercise endurance.1
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The role of obesity in the pathogenesis of hypertension. ACTA ACUST UNITED AC 2008; 5:101-11. [DOI: 10.1038/ncpneph1022] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2008] [Accepted: 11/17/2008] [Indexed: 02/01/2023]
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