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Wang WT, Wu TH, Er LK, Huang CW, Tu KH, Fan KC, Tsai CH, Wang SY, Wu CY, Huang SH, Liu HW, Tseng FY, Wu WC, Chang CC, Cheng HM, Lin LY, Chueh JS, Lin YH, Hwu CM, Wu VC. Recent progress in unraveling cardiovascular complications associated with primary aldosteronism: a succinct review. Hypertens Res 2024; 47:1103-1119. [PMID: 38228750 DOI: 10.1038/s41440-023-01538-x] [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: 09/02/2023] [Revised: 11/13/2023] [Accepted: 11/14/2023] [Indexed: 01/18/2024]
Abstract
This comprehensive review offers a thorough exploration of recent advancements in our understanding of the intricate cardiovascular complications associated with Primary Aldosteronism (PA). PA encompasses a spectrum of conditions characterized by hypertension and excessive production of aldosterone operating independently of the renin-angiotensin system. Given its association with an elevated risk of cardiovascular and cerebrovascular complications, as well as a higher incidence of metabolic syndrome in comparison to individuals with essential hypertension (EH), an accurate diagnosis of PA is of paramount importance. This review delves into the intricate interplay between PA and cardiovascular health and focuses on the key pathophysiological mechanisms contributing to adverse cardiac outcomes. The impact of different treatment modalities on cardiovascular health is also examined, offering insights into potential therapeutic approaches. By highlighting the significance of recognizing PA as a significant contributor to cardiovascular morbidity, this review emphasizes the need for improved screening, early diagnosis, and tailored management strategies to both enhance patient care and mitigate the burden of cardiovascular diseases. The findings presented herein underscore the growing importance of PA in the context of cardiovascular medicine and emphasize the potential for translating these insights into targeted interventions to improve patient outcomes.
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Affiliation(s)
- Wei-Ting Wang
- Division of Cardiology, Department of Internal Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Tsung-Hui Wu
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Division of Endocrinology and Metabolism, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Leay-Kiaw Er
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Taipei Tzu Chi Hospital, The Buddhist Medical Foundation, Hualien, Taiwan, ROC
- School of Medicine, Tzu-Chi University College of Medicine, Hualien, Taiwan, ROC
| | - Chien-Wei Huang
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Division of Nephrology, Department of Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan, ROC
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan, ROC
| | - Kun-Hua Tu
- Kidney Research Center, Department of Nephrology, Chang Gung Memorial Hospital, Taoyuan, Taiwan, ROC
| | - Kang-Chih Fan
- Division of Endocrinology and Metabolism, Department of Internal Medicine, National Taiwan University Hospital Hsinchu Branch, Hsinchu, Taiwan, ROC
- Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan, ROC
| | - Cheng-Hsuan Tsai
- Division of Cardiology, Department of Internal Medicine and Cardiovascular Center, National Taiwan University Hospital, Taipei, Taiwan, ROC
| | - Shu-Yi Wang
- Division of Endocrinology & Metabolism, Department of Internal Medicine, Changhua Christian Hospital, Changhua, Taiwan, ROC
| | - Chun-Yi Wu
- Division of Nephrology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan, ROC
| | - Shu-Heng Huang
- Division of Endocrinology & Metabolism, Department of Internal Medicine, Kaohsiung Medical University Chung-Ho Memorial Hospital, Kaohsiung, Taiwan, ROC
| | - Han-Wen Liu
- Division of Endocrinology & Metabolism, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan, ROC
| | - Fen-Yu Tseng
- Division of Endocrinology & Metabolism, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan, ROC
| | - Wan-Chen Wu
- Division of Endocrinology & Metabolism, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan, ROC
| | - Chin-Chen Chang
- Department of Medical Imaging, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan, ROC
- Department and Graduate Institute of Forensic Medicine, National Taiwan University College of Medicine, Taipei, Taiwan, ROC
| | - Hao-Min Cheng
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC.
| | - Liang-Yu Lin
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Division of Endocrinology and Metabolism, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Jeff S Chueh
- Primary Aldosteronism Center, National Taiwan University Hospital, (NTUH-PAC), Taipei, Taiwan, ROC
- TAIPAI, Taiwan Primary Aldosteronism Investigation (TAIPAI) Study Group, Taipei, Taiwan, ROC
- Department of Urology, National Taiwan University Hospital, Taipei, Taiwan, ROC
| | - Yen-Hung Lin
- Division of Cardiology, Department of Internal Medicine and Cardiovascular Center, National Taiwan University Hospital, Taipei, Taiwan, ROC
- Primary Aldosteronism Center, National Taiwan University Hospital, (NTUH-PAC), Taipei, Taiwan, ROC
- TAIPAI, Taiwan Primary Aldosteronism Investigation (TAIPAI) Study Group, Taipei, Taiwan, ROC
| | - Chii-Min Hwu
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC.
- Division of Endocrinology and Metabolism, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC.
| | - Vin-Cent Wu
- Division of Endocrinology and Metabolism, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC.
- School of Medicine, Tzu-Chi University College of Medicine, Hualien, Taiwan, ROC.
- Primary Aldosteronism Center, National Taiwan University Hospital, (NTUH-PAC), Taipei, Taiwan, ROC.
- TAIPAI, Taiwan Primary Aldosteronism Investigation (TAIPAI) Study Group, Taipei, Taiwan, ROC.
- Division of Nephrology, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan, ROC.
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Musacchio S, Kallenbach MD, Huber DL, Raff H, Johnson BD, Leddy J, McCrea MA, Meier TB, Nelson LD. Salivary Cortisol Dynamics After Mild Traumatic Brain Injury. J Head Trauma Rehabil 2023; 38:E318-E327. [PMID: 36696236 PMCID: PMC10329977 DOI: 10.1097/htr.0000000000000855] [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] [Indexed: 01/26/2023]
Abstract
OBJECTIVE To assess mild traumatic brain injury (mTBI)-related alterations in baseline (resting) salivary cortisol and cortisol reactivity to cognitive and exercise stressors, which are frequently encountered during mTBI rehabilitation and recovery. SETTING Persons with mTBI were recruited from a level 1 trauma center emergency department. Uninjured controls (UCs) were recruited from the community. PARTICIPANTS Participants were 37 individuals with mTBI and 24 UCs. All patients with mTBI were enrolled at 7 ± 3 days post-injury, met the American Congress of Rehabilitation Medicine definition of mTBI, and had no acute intracranial findings on clinical neuroimaging (if performed). DESIGN A prospective cohort study design was used. All participants provided saliva samples 10 times during each of 2 visits spaced 3 weeks apart (1 week and 1 month post-injury for the mTBI group). Each visit included baseline saliva sampling and sampling to evaluate reactivity to a cognitive stressor (Paced Auditory Serial Addition Test) and physical stressor (Buffalo Concussion Treadmill Test [BCTT]). MAIN OUTCOME MEASURE Natural log-transformed salivary cortisol was measured by enzyme immunoassay. Cortisol was predicted using a linear mixed-effects model by group (mTBI and UC), visit (1 week and 1 month), and saliva sample. RESULTS Mean salivary cortisol was higher in the mTBI group (1.67 nmol/L [95% CI 1.42-1.72]) than in controls (1.30 nmol/L [1.12-1.47]), without an mTBI × time interaction. At 1 week, the mTBI group had greater cortisol reactivity in response to the BCTT. CONCLUSIONS Higher cortisol in individuals with mTBI at 1 week and 1 month post-injury extends previous findings into the subacute recovery period. Furthermore, the mTBI group demonstrated a greater cortisol response to mild-to-moderate aerobic exercise (BCTT) at 1 week post-injury. Given the increasing role of exercise in mTBI rehabilitation, further research is warranted to replicate these findings and identify the clinical implications, if any, of enhanced hypothalamic-pituitary-adrenal axis responses to exercise in civilians with recent mTBI.
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Affiliation(s)
- Sophia Musacchio
- Departments of Neurosurgery (Ms Musacchio, Mx Kallenbach, Mr Huber, and Drs McCrea, Meier, and Nelson) and Medicine, Surgery, and Physiology (Dr Raff), Medical College of Wisconsin, Milwaukee; Endocrine Research Laboratory, Aurora St Luke's Medical Center, Advocate Aurora Research Institute, Milwaukee, Wisconsin (Dr Raff); Department of Kinesiology, Indiana University, Bloomington (Dr Johnson); and UBMD Orthopaedics and Sports Medicine, and SUNY Buffalo Jacobs School of Medicine and Biomedical Sciences, Buffalo, New York (Dr Leddy)
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Lee G, Kluwe B, Zhao S, Kline D, Nedungadi D, Brock GN, Odei JB, Kesireddy V, Pohlman N, Sims M, Effoe VS, Wu WC, Kalyani RR, Wand GS, Echouffo-Tcheugui J, Golden SH, Joseph JJ. Adiposity, aldosterone and plasma renin activity among African Americans: The Jackson Heart Study. ENDOCRINE AND METABOLIC SCIENCE 2023; 11:100126. [PMID: 37475849 PMCID: PMC10358448 DOI: 10.1016/j.endmts.2023.100126] [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] [Indexed: 07/22/2023] Open
Abstract
Objective To analyze associations between adiposity and the renin-angiotensin-aldosterone system (RAAS) in a large African American (AA) cohort. Methods Cross-sectional associations of adiposity (body mass index [BMI], waist circumference [WC], waist:height ratio, waist:hip ratio, leptin, adiponectin, leptin:adiponectin ratio [LAR], subcutaneous [SAT] and visceral adipose tissue [VAT], and liver attenuation [LA]) with aldosterone, plasma renin activity (renin), and aldosterone:renin ratio (ARR) were assessed in the Jackson Heart Study using adjusted linear regression models. Results A 1-SD higher BMI was associated with a 4.8 % higher aldosterone, 9.4 % higher renin, and 5.0 % lower ARR (all p < 0.05). Log-leptin had the largest magnitude of association with renin (30.2 % higher) and ARR (9.6 % lower), while the strongest association of aldosterone existed for log-LAR (15.3 % higher) (all 1-SD, p < 0.05). SAT was only associated with renin. VAT was associated with higher aldosterone, renin, and ARR. Liver fat was associated with aldosterone and renin, but not ARR. Associations of WC, BMI, and SAT with aldosterone were greater in men while the association with VAT was greater in women (p-interactions < 0.05). Conclusion Multiple measures of adiposity are associated with the RAAS in AAs. Further studies should examine the role of RAAS in obesity-driven cardiometabolic diseases.
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Affiliation(s)
- Grace Lee
- Division of Endocrinology, Diabetes and Metabolism,
Department of Internal Medicine, The Ohio State University College of Medicine,
Columbus, OH, USA
| | - Bjorn Kluwe
- Division of Endocrinology, Diabetes and Metabolism,
Department of Internal Medicine, The Ohio State University College of Medicine,
Columbus, OH, USA
| | - Songzhu Zhao
- Department of Biomedical Informatics, Center for
Biostatistics, The Ohio State University, Columbus, OH, USA
| | - David Kline
- Department of Biomedical Informatics, Center for
Biostatistics, The Ohio State University, Columbus, OH, USA
| | - Divya Nedungadi
- Division of Endocrinology, Diabetes and Metabolism,
Department of Internal Medicine, The Ohio State University College of Medicine,
Columbus, OH, USA
| | - Guy N. Brock
- Department of Biomedical Informatics, Center for
Biostatistics, The Ohio State University, Columbus, OH, USA
| | - James B. Odei
- Division of Biostatistics, The Ohio State University
College of Public Health, Columbus, OH, USA
| | - Veena Kesireddy
- Division of Endocrinology, Diabetes and Metabolism,
Department of Internal Medicine, The Ohio State University College of Medicine,
Columbus, OH, USA
| | - Neal Pohlman
- Division of Endocrinology, Diabetes and Metabolism,
Department of Internal Medicine, The Ohio State University College of Medicine,
Columbus, OH, USA
| | - Mario Sims
- Department of Medicine, University of Mississippi Medical
Center, Jackson, MS, USA
| | - Valery S. Effoe
- Department of Medicine, Morehouse School of Medicine,
Atlanta, GA, USA
| | - Wen-Chih Wu
- Department of Medicine, Warren Alpert Medical School of
Brown University, Providence, RI, USA
| | - Rita R. Kalyani
- Department of Medicine, Johns Hopkins University School of
Medicine, Baltimore, MD, USA
| | - Gary S. Wand
- Department of Medicine, Johns Hopkins University School of
Medicine, Baltimore, MD, USA
| | | | - Sherita H. Golden
- Department of Medicine, Johns Hopkins University School of
Medicine, Baltimore, MD, USA
| | - Joshua J. Joseph
- Division of Endocrinology, Diabetes and Metabolism,
Department of Internal Medicine, The Ohio State University College of Medicine,
Columbus, OH, USA
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The Effect of Aldosterone on Cardiorenal and Metabolic Systems. Int J Mol Sci 2023; 24:ijms24065370. [PMID: 36982445 PMCID: PMC10049192 DOI: 10.3390/ijms24065370] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 03/02/2023] [Accepted: 03/07/2023] [Indexed: 03/14/2023] Open
Abstract
Aldosterone, a vital hormone of the human body, has various pathophysiological roles. The excess of aldosterone, also known as primary aldosteronism, is the most common secondary cause of hypertension. Primary aldosteronism is associated with an increased risk of cardiovascular disease and kidney dysfunction compared to essential hypertension. Excess aldosterone can lead to harmful metabolic and other pathophysiological alterations, as well as cause inflammatory, oxidative, and fibrotic effects in the heart, kidney, and blood vessels. These alterations can result in coronary artery disease, including ischemia and myocardial infarction, left ventricular hypertrophy, heart failure, arterial fibrillation, intracarotid intima thickening, cerebrovascular disease, and chronic kidney disease. Thus, aldosterone affects several tissues, especially in the cardiovascular system, and the metabolic and pathophysiological alterations are related to severe diseases. Therefore, understanding the effects of aldosterone on the body is important for health maintenance in hypertensive patients. In this review, we focus on currently available evidence regarding the role of aldosterone in alterations of the cardiovascular and renal systems. We also describe the risk of cardiovascular events and renal dysfunction in hyperaldosteronism.
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Ling G, Bruno J, Albert SG, Dhindsa S. Fatty acids as a direct regulator of aldosterone hypersecretion. Mol Cell Endocrinol 2023; 561:111836. [PMID: 36549461 DOI: 10.1016/j.mce.2022.111836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 12/15/2022] [Accepted: 12/17/2022] [Indexed: 12/23/2022]
Abstract
Primary hyperaldosteronism is a major cause of secondary hypertension and carries additional cardiovascular risks beyond that of the elevated blood pressure. Primary hyperaldosteronism is more prevalent in obese people, and weight loss reduces aldosterone levels. It needs to be determined whether obesity related factors directly contribute to the pathogenesis of primary hyperaldosteronism. Here we show that the non-esterified fatty acids (NEFA) palmitic acid, and to a lesser extent, linoleic acid significantly stimulated aldosterone production and steroid enzyme induction in adrenocortical HAC15 cells of human origin. Palmitic acid, linoleic acid, and to a much lesser extent, oleic acid induced the expression of aldosterone synthase. Induction of the Steroidogenic Acute Regulatory Protein (StAR) was modest. Increased aldosterone secretion was independent of fatty acid beta-oxidation in the mitochondria but may involve free fatty acid receptor 1 (FFAR1/GPR40) and endoplasmic reticulum (ER) stress. Palmitic acid and linoleic acid induced the expression of C/EBP Homologous Protein (CHOP), a marker of ER stress, correlating with their ability to induce aldosterone synthase gene expression. Palmitic acid, but not linoleic acid decreased mitochondrial potentials and induced uncoupling protein 2 (UCP2). Palmitic acid enhanced, while docosahexaenoic acid (DHA) suppressed aldosterone response to angiotensin II (Ang-II). Our study provides evidence that NEFAs modulate aldosterone production, and further suggests that hyperaldosteronism shares similar pathogenesis with other obesity-related disorders such as metabolic syndrome.
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Affiliation(s)
- Guoyu Ling
- Department of Internal Medicine, Division of Endocrinology, Saint Louis University School of Medicine, Saint Louis, MO, 63110, USA.
| | - Jonathan Bruno
- Department of Internal Medicine, Division of Endocrinology, Saint Louis University School of Medicine, Saint Louis, MO, 63110, USA
| | - Stewart G Albert
- Department of Internal Medicine, Division of Endocrinology, Saint Louis University School of Medicine, Saint Louis, MO, 63110, USA
| | - Sandeep Dhindsa
- Department of Internal Medicine, Division of Endocrinology, Saint Louis University School of Medicine, Saint Louis, MO, 63110, USA
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Degroote C, von Känel R, Thomas L, Zuccarella-Hackl C, Messerli-Bürgy N, Saner H, Wiest R, Wirtz PH. Lower diurnal HPA-axis activity in male hypertensive and coronary heart disease patients predicts future CHD risk. Front Endocrinol (Lausanne) 2023; 14:1080938. [PMID: 36967749 PMCID: PMC10036761 DOI: 10.3389/fendo.2023.1080938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 02/07/2023] [Indexed: 03/12/2023] Open
Abstract
BACKGROUND Coronary heart disease (CHD) and its major risk factor hypertension have both been associated with altered activity of the hypothalamus-pituitary-adrenal (HPA)-axis but the biological mechanisms underlying prospective associations with adverse disease outcomes are unclear. We investigated diurnal HPA-axis activity in CHD-patients, hypertensive (HT) and healthy normotensive men (NT) and tested for prospective associations with biological CHD risk factors. METHODS Eighty-three male CHD-patients, 54 HT and 54 NT men repeatedly measured salivary cortisol over two consecutive days. Prospective CHD risk was assessed by changes between baseline and follow-up in the prothrombotic factors D-dimer and fibrinogen, the pro-inflammatory measures interleukin (IL)-6, tumor necrosis factor-alpha (TNF-α), and acute phase protein C-reactive protein (CRP), as well as blood lipids in terms of total cholesterol (tChol)/high-density-lipoprotein cholesterol (HDL)-ratio. We aggregated coagulation and inflammatory measures to respective indices. RESULTS The groups differed in repeated daytime cortisol (dayCort) secretion (p=.005,η2 p=.03,f=0.18) and cortisol awakening response (CAR) (p=.006,η2 p=.03,f=0.18), with similarly lower overall dayCort and CAR in CHD-patients and HT, as compared to NT. The groups differed further in cortisol at awakening (p=.015,η2 p=.04,f=0.20) with highest levels in HT (p´s≤.050), and in diurnal slope between waking and evening cortisol (p=.033,η2 p=.04,f=0.20) with steepest slopes in HT (p´s≤.039), although in part not independent of confounders. Lower aggregated dayCort and CAR in terms of area-under-the-curve (AUC) independently predicted increases in future overall CHD risk (AUCdayCort: p=.021,η2 p=.10,f=0.33;AUCCAR: p=.028,η2 p=.09,f=0.31) 3.00 ± 0.06(SEM) years later, with risk prediction most pronounced in fibrinogen (AUCdayCort: p=.017,ΔR 2= 0.12;AUCCAR: p=.082). CONCLUSION We found evidence for an HPA-axis hypoactivity in CHD and HT with lower diurnal HPA-axis activity predicting increases in cardiovascular risk as evidenced by increases in circulating levels of biomarkers of atherothrombotic risk. Down-regulation of basal HPA-axis activity may contribute to the pathogenesis of atherosclerosis and thrombosis in CHD via effects on coagulation.
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Affiliation(s)
- Cathy Degroote
- Biological Work and Health Psychology, University of Konstanz, Konstanz, Germany
| | - Roland von Känel
- Department of Consultation-Liaison Psychiatry and Psychosomatic Medicine, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Livia Thomas
- Biological Work and Health Psychology, University of Konstanz, Konstanz, Germany
- Department of Psychology, University of Bern, Bern, Switzerland
| | - Claudia Zuccarella-Hackl
- Department of Consultation-Liaison Psychiatry and Psychosomatic Medicine, University Hospital Zurich, University of Zurich, Zurich, Switzerland
- Department of Psychology, University of Bern, Bern, Switzerland
| | | | - Hugo Saner
- Institute for Social and Preventive Medicine, University of Bern, Bern, Switzerland
| | - Roland Wiest
- Support Center of Advanced Neuroimaging, Institute of Diagnostic and Interventional Neuroradiology, University Hospital Bern, University of Bern, Bern, Switzerland
| | - Petra H. Wirtz
- Biological Work and Health Psychology, University of Konstanz, Konstanz, Germany
- Department of Psychology, University of Bern, Bern, Switzerland
- Centre for the Advanced Study of Collective Behaviour, University of Konstanz, Konstanz, Germany
- *Correspondence: Petra H. Wirtz,
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Promise of Physiological Profiling to Prevent Stroke in People of African Ancestry: Prototyping Ghana. Curr Neurol Neurosci Rep 2022; 22:735-743. [PMID: 36181575 DOI: 10.1007/s11910-022-01239-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/25/2022] [Indexed: 01/27/2023]
Abstract
PURPOSE OF REVIEW Worldwide, compared to other racial/ethnic groups, individuals of African ancestry have an excessively higher burden of hypertension-related morbidities, especially stroke. Identifying modifiable biological targets that contribute to these disparities could improve global stroke outcomes. In this scoping review, we discuss how pathological perturbations in the renin-angiotensin-aldosterone pathways could be harnessed via physiological profiling for the purposes of improving blood pressure control for stroke prevention among people of African ancestry. RECENT FINDINGS Transcontinental comparative data from the USA and Ghana show that the prevalence of treatment-resistant hypertension among stroke survivors is 42.7% among indigenous Africans, 16.1% among African Americans, and 6.9% among non-Hispanic Whites, p < 0.0001. A multicenter clinical trial of patients without stroke in 3 African countries (Nigeria, Kenya, and South Africa) demonstrated that physiological profiling using plasma renin activity and aldosterone to individualize selection of antihypertensive medications compared with usual care resulted in better blood pressure control with fewer medications over 12 months. Among Ghanaian ischemic stroke survivors treated without renin-aldosterone profiling data, an analysis revealed that those with low renin phenotypes did not achieve any meaningful reduction in blood pressure over 12 months on 3-4 antihypertensive medications despite excellent adherence. For a polygenic condition such as hypertension, individualized therapy based on plasma renin-aldosterone-guided selection of therapy for uncontrolled BP following precision medicine principles may be a viable strategy for primary and secondary stroke prevention with the potential to reduce disparities in the poor outcomes of stroke disproportionately shared by individuals of African ancestry. A dedicated clinical trial to test this hypothesis is warranted.
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Al-Dujaili EAS, Casey C, Stockton A. Antioxidant Properties and Beneficial Cardiovascular Effects of a Natural Extract of Pomegranate in Healthy Volunteers: A Randomized Preliminary Single-Blind Controlled Study. Antioxidants (Basel) 2022; 11:2124. [PMID: 36358496 PMCID: PMC9686489 DOI: 10.3390/antiox11112124] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/17/2022] [Accepted: 10/25/2022] [Indexed: 03/06/2024] Open
Abstract
Pomegranates are known to possess anti-hypertensive, anti-atherogenic and cardioprotective effects mainly due to their pleiotropic effects on various cellular pathways, especially those triggered by oxidative stress. The aim of this study was to investigate the effect of natural standardized pomegranate (PE) extract on cardiovascular risk factors in 24 healthy volunteers who participated in a randomized, single-blind placebo-controlled study. There were 12 subjects in the PE group and 12 in the placebo group. Variables were measured at baseline and after 14 and 28 days of supplementation are anthropometry, BP, pulse wave velocity, fat and lean body mass, salivary and urinary cortisol, and cortisone, total phenolics, antioxidant capacity and lipid peroxidation. Urinary total phenolics excretion and antioxidant capacity were significantly increased after 14 and 28 days of PE intake. At day 28, there were also statistically significant decreases in systolic and diastolic blood pressure (BP), pulse wave velocity, body fat and fat mass, as well as an increase in lean body mass. Significant changes in the placebo group were not found. Glucocorticoid levels showed a significant decrease in saliva cortisol at day 28 (morning) in the PE group, and cortisol/cortisone ratio was significantly decreased following 28 days of PE intake at morning, noon, and evening. Urine free cortisol was significantly reduced at day 14. These findings suggest that pomegranate extract intake may improve antioxidant and oxidative stress status and play a beneficial role in the attenuation of some cardiovascular risk factors. Future studies should concentrate on overweight and older people.
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Affiliation(s)
- Emad A. S. Al-Dujaili
- Centre for Cardiovascular Science, Queen’s Medical Research Institute, University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, Scotland, UK
| | - Ciara Casey
- Dietetics, Nutrition and Biological Sciences, Queen Margaret University, Edinburgh EH21 6UU, Scotland, UK
| | - Angela Stockton
- Dietetics, Nutrition and Biological Sciences, Queen Margaret University, Edinburgh EH21 6UU, Scotland, UK
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Blood and Urinary Biomarkers of Antipsychotic-Induced Metabolic Syndrome. Metabolites 2022; 12:metabo12080726. [PMID: 36005598 PMCID: PMC9416438 DOI: 10.3390/metabo12080726] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/29/2022] [Accepted: 08/03/2022] [Indexed: 12/15/2022] Open
Abstract
Metabolic syndrome (MetS) is a clustering of at least three of the following five medical conditions: abdominal obesity, high blood pressure, high blood sugar, high serum triglycerides, and low serum high-density lipoprotein (HDL). Antipsychotic (AP)-induced MetS (AIMetS) is the most common adverse drug reaction (ADR) of psychiatric pharmacotherapy. Herein, we review the results of studies of blood (serum and plasma) and urinary biomarkers as predictors of AIMetS in patients with schizophrenia (Sch). We reviewed 1440 studies examining 38 blood and 19 urinary metabolic biomarkers, including urinary indicators involved in the development of AIMetS. Among the results, only positive associations were revealed. However, at present, it should be recognized that there is no consensus on the role of any particular urinary biomarker of AIMetS. Evaluation of urinary biomarkers of the development of MetS and AIMetS, as one of the most common concomitant pathological conditions in the treatment of patients with psychiatric disorders, may provide a key to the development of strategies for personalized prevention and treatment of the condition, which is considered a complication of AP therapy for Sch in clinical practice.
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Ramasamy S, Kolloli A, Kumar R, Husain S, Soteropoulos P, Chang TL, Subbian S. Comprehensive Analysis of Disease Pathology in Immunocompetent and Immunocompromised Hosts following Pulmonary SARS-CoV-2 Infection. Biomedicines 2022; 10:biomedicines10061343. [PMID: 35740365 PMCID: PMC9219777 DOI: 10.3390/biomedicines10061343] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 05/23/2022] [Accepted: 06/02/2022] [Indexed: 12/12/2022] Open
Abstract
The Coronavirus disease 2019 (COVID-19) pandemic disproportionately affects immunocompetent and immunocompromised individuals, with the latter group being more vulnerable to severe disease and death. However, the differential pathogenesis of SARS-CoV-2 in the context of a specific immunological niche remains unknown. Similarly, systematic analysis of disease pathology in various extrapulmonary organs in immunocompetent and immunocompromised hosts during SARS-CoV-2 infection is not fully understood. We used a hamster model of SARS-CoV-2 infection, which recapitulates the pathophysiology of patients with mild-to-moderate COVID-19, to determine the dynamics of SARS-CoV-2 replication and histopathology at organ-level niches and map how COVID-19 symptoms vary in different immune contexts. Hamsters were intranasally infected with low (LD) or high (HD) inoculums of SARS-CoV-2, and the kinetics of disease pathology and viral load in multiple organs, antibody response, inflammatory cytokine expression, and genome-wide lung transcriptome by RNAseq analysis were determined and compared against corresponding responses from chemically induced immunocompromised hamsters. We observed transient body weight loss proportional to the SARS-CoV-2 infectious dose in immunocompetent hamsters. The kinetics of viral replication and peak viral loads were similar between LD and HD groups, although the latter developed more severe disease pathology in organs. Both groups generated a robust serum antibody response. In contrast, infected immunocompromised animals showed more prolonged body weight loss and mounted an inadequate SARS-CoV-2-neutralizing antibody response. The live virus was detected in the pulmonary and extrapulmonary organs for extended periods. These hamsters also had persistent inflammation with severe bronchiolar-alveolar hyperplasia/metaplasia. Consistent with the differential disease presentation, distinct changes in inflammation and immune cell response pathways and network gene expression were seen in the lungs of SARS-CoV-2-infected immunocompetent and immunocompromised animals.
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Affiliation(s)
- Santhamani Ramasamy
- Public Health Research Institute, Rutgers-New Jersey Medical School, Newark, NJ 07103, USA; (S.R.); (A.K.); (R.K.); (T.L.C.)
| | - Afsal Kolloli
- Public Health Research Institute, Rutgers-New Jersey Medical School, Newark, NJ 07103, USA; (S.R.); (A.K.); (R.K.); (T.L.C.)
| | - Ranjeet Kumar
- Public Health Research Institute, Rutgers-New Jersey Medical School, Newark, NJ 07103, USA; (S.R.); (A.K.); (R.K.); (T.L.C.)
| | - Seema Husain
- The Genomics Center at Rutgers-New Jersey Medical School, Newark, NJ 07103, USA; (S.H.); (P.S.)
| | - Patricia Soteropoulos
- The Genomics Center at Rutgers-New Jersey Medical School, Newark, NJ 07103, USA; (S.H.); (P.S.)
| | - Theresa L. Chang
- Public Health Research Institute, Rutgers-New Jersey Medical School, Newark, NJ 07103, USA; (S.R.); (A.K.); (R.K.); (T.L.C.)
| | - Selvakumar Subbian
- Public Health Research Institute, Rutgers-New Jersey Medical School, Newark, NJ 07103, USA; (S.R.); (A.K.); (R.K.); (T.L.C.)
- Correspondence: ; Tel.: +1-973-854-3226
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11
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Shibata S. Thermoreceptor TRPV1 regulates body weight and blood pressure in the absence of thermogenin. Hypertens Res 2022; 45:917-919. [PMID: 35236942 DOI: 10.1038/s41440-022-00867-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 01/19/2022] [Accepted: 01/20/2022] [Indexed: 11/09/2022]
Affiliation(s)
- Shigeru Shibata
- Division of Nephrology, Department of Internal Medicine, Teikyo University School of Medicine, Tokyo, Japan.
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12
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Primary Aldosteronism: A Consequence of Sugar and Western Diet? Med Hypotheses 2022. [DOI: 10.1016/j.mehy.2022.110796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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El-Domiaty HF, Sweed E, Kora MA, Zaki NG, Khodir SA. Activation of angiotensin-converting enzyme 2 ameliorates metabolic syndrome-induced renal damage in rats by renal TLR4 and nuclear transcription factor κB downregulation. Front Med (Lausanne) 2022; 9:904756. [PMID: 36035416 PMCID: PMC9411523 DOI: 10.3389/fmed.2022.904756] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 06/27/2022] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Metabolic syndrome (MetS) is an independent risk factor for chronic kidney disease (CKD) through many mechanisms, including activation of the renin-angiotensin system. The deleterious effects of angiotensin II (Ang II) can be counterbalanced by angiotensin-converting enzyme 2 (ACE2). Diminazene aceturate (DIZE), an anti-trypanosomal drug, can activate ACE2. OBJECTIVE This study aimed to investigate the possible reno-protective effects of DIZE in MetS rats with elucidation of related mechanisms. MATERIALS AND METHODS Thirty adult male Wistar albino rats were divided equally into control, MetS, and MetS + DIZE groups. Body weight, systolic blood pressure (SBP), and urinary albumin levels were measured. Serum levels of fasting blood glucose (FBG), insulin, uric acid, lipid profile, urea, and creatinine were measured. Homeostasis Model Assessment Index (HOMA-IR) was estimated. Subsequently, renal levels of ACE2, Ang II, malondialdehyde (MDA), reduced glutathione (GSH), and tumor necrosis factor-α (TNF-α) were measured with histopathological and immunohistochemical assessment of TLR4 and NF-κB in renal tissues. RESULTS MetS caused dyslipidemia with significant increases in body weight, SBP, FBG, serum insulin, HOMA-IR, uric acid, urea, creatinine, urinary albumin, and renal levels of Ang II, MDA, and TNF-α, whereas renal ACE2 and GSH were significantly decreased. Renal TLR4 and NF-κB immunoreactivity in MetS rats was upregulated. DIZE supplementation of MetS rats induced significant improvements in renal function parameters; this could be explained by the ability of DIZE to activate renal ACE2 and decrease renal Ang II levels with downregulation of renal TLR4 and NF-κB expression. CONCLUSION DIZE exerts a reno-protective effect in MetS, mainly by downregulating renal TLR4 and NF-κB levels.
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Affiliation(s)
- Heba F. El-Domiaty
- Department of Medical Physiology, Faculty of Medicine, Menoufia University, Menoufia, Egypt
| | - Eman Sweed
- Department of Clinical Pharmacology, Faculty of Medicine, Menoufia University, Menoufia, Egypt
- *Correspondence: Eman Sweed,
| | - Mona A. Kora
- Department of Pathology, Faculty of Medicine, Menoufia University, Menoufia, Egypt
| | - Nader G. Zaki
- Department of Anatomy and Embryology, Faculty of Medicine, Menoufia University, Menoufia, Egypt
| | - Suzan A. Khodir
- Department of Medical Physiology, Faculty of Medicine, Menoufia University, Menoufia, Egypt
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14
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Biomarkers in metabolic syndrome. Adv Clin Chem 2022; 111:101-156. [DOI: 10.1016/bs.acc.2022.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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Rachoin JS, Olsen P, Gaughan J, Cerceo E. Racial differences in outcomes and utilization after cardiac arrest in the USA: A longitudinal study comparing different geographical regions in the USA from 2006-2018. Resuscitation 2021; 169:115-123. [PMID: 34757061 DOI: 10.1016/j.resuscitation.2021.10.038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 10/20/2021] [Accepted: 10/25/2021] [Indexed: 10/20/2022]
Abstract
AIM Healthcare disparities can affect access and quality of care among many in the United States (US). In addition to race, we sought to assess if geography affected rates of cardiac arrest, and the subsequent outcomes. METHODS Using the National Inpatient Sample database from 2006-2018, we assessed rates of cardiac arrest (out of hospital that survived to admission and in-hospital) and cardiac catheterization, and length of stay (LOS) in four regions: Northeast (NE), South (SO) West (W) and Midwest (MW). RESULTS Cardiac arrest increased from 27,611 (2006) to 43,333 (2018). The proportion of African American (AA) patients experiencing cardiac arrest significantly increased from 11.9% to 18.8%. The mortality decreased from 65.4% to 60.8% in all patients and 70.2% to 61.4% in AA. Mortality in AA remained higher than non-AA (OR, 1.09 [1.08-1.11], p < 0.001). When regions were compared for mortality, MW had a lower risk than NE 0.94[0.92-9.96]; SO 1.05[1.04-1.07] and W 1.11[1.09-1.13] were higher compared to NE. LOS decreased slightly from 9.0 days to 8.7 in all patients. LOS for AA was longer than non-AA (11.3 vs 8.6 days) with the NE having the longest LOS. AA were less likely to receive cardiac catheterization than non-AA (9.5% vs 15%) with the largest racial gap in the MW region. CONCLUSION The proportion of AA with cardiac arrests increased over the study period. Mortality and LOS improved significantly in AA from 2006 to 2018 but remain significantly higher than non-AA patients. Future research should identify contributors to these concerning trends.
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Affiliation(s)
- Jean-Sebastien Rachoin
- Department of Critical Care Medicine, Cooper Medical School of Rowan University, Cooper University Healthcare, United States.
| | - Phillip Olsen
- Department of Medicine, Cooper Medical School of Rowan University, Cooper University Healthcare, United States
| | - John Gaughan
- Department of Biostatistics, Cooper Medical School of Rowan University, Cooper University Healthcare, United States
| | - Elizabeth Cerceo
- Department of Hospital Medicine, Cooper Medical School of Rowan University, Cooper University Healthcare, United States
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16
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Aldosterone-producing adenoma-harbouring KCNJ5 mutations is associated with lower prevalence of metabolic disorders and abdominal obesity. J Hypertens 2021; 39:2353-2360. [PMID: 34313632 DOI: 10.1097/hjh.0000000000002948] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Aldosterone overproduction and lipid metabolic disturbances between idiopathic hyperaldosteronism (IHA) and unilateral aldosterone-producing adenoma (APA) have been inconsistently linked in patients with primary aldosteronism. Moreover, KCNJ5 mutations are prevalent among APAs and enhance aldosterone synthesis in adrenal cortex. We aimed to investigate the prevalence of metabolic syndrome (MetS) in each primary aldosteronism subtype and observe the role of KCNJ5 mutations among APAs on the distribution of abdominal adipose tissues quantified using computed tomography (CT), including their changes postadrenalectomy. DESIGN AND METHODS We retrospectively collected 244 and 177 patients with IHA and APA at baseline. Patients with APA had undergone adrenalectomy, and gene sequencing revealed the absence (n = 75) and presence (n = 102) of KCNJ5 mutations. We also recruited 31 patients with APA who had undergone CT-scan 1-year postadrenalectomy. RESULTS The patients with APA harbouring KCNJ5 mutations had significantly lower prevalence of MetS and smaller distribution in waist circumference, subcutaneous adipose tissue (SAT), and visceral adipose tissue (VAT) than the other groups. Logistic regression analysis indicated that the VAT area correlated significantly with KCNJ5 mutations among the APAs. Only participants with KCNJ5 mutations had significant increases in triglycerides, cholesterol, SAT, and VAT after 1-year postadrenalectomy. CONCLUSION This study is the first to demonstrate that MetS and abdominal obesity were less prevalent in the patients with APA harbouring KCNJ5 mutations compared with the IHA group and the non-KCNJ5-mutated APA group. Increasing prevalence of dyslipidaemia and abdominal obesity was observed in patients with KCNJ5 mutations 1-year postadrenalectomy.
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17
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Joseph JJ, Pohlman NK, Zhao S, Kline D, Brock G, Echouffo-Tcheugui JB, Sims M, Effoe VS, Wu WC, Kalyani RR, Wand GS, Kluwe B, Hsueh WA, Abdalla M, Shimbo D, Golden SH. Association of Serum Aldosterone and Plasma Renin Activity With Ambulatory Blood Pressure in African Americans: The Jackson Heart Study. Circulation 2021; 143:2355-2366. [PMID: 33605160 PMCID: PMC8789344 DOI: 10.1161/circulationaha.120.050896] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Accepted: 01/11/2020] [Indexed: 01/03/2023]
Abstract
BACKGROUND The renin-angiotensin-aldosterone system (RAAS) is an important driver of blood pressure (BP), but the association of the RAAS with ambulatory BP (ABP) and ABP monitoring phenotypes among African Americans has not been assessed. METHODS ABP and ABP monitoring phenotypes were assessed in 912 Jackson Heart Study participants with aldosterone and plasma renin activity (PRA). Multivariable linear and logistic regression analyses were used to analyze the association of aldosterone and PRA with clinic, awake, and asleep systolic BP and diastolic BP (DBP) and ABP monitoring phenotypes, adjusting for important confounders. RESULTS The mean age of participants was 59±11 years and 69% were female. In fully adjusted models, lower log-PRA was associated with higher clinic, awake, and asleep systolic BP and DBP (all P<0.05). A higher log-aldosterone was associated with higher clinic, awake, and asleep DBP (all P<0.05). A 1-unit higher log-PRA was associated with lower odds of daytime hypertension (odds ratio [OR] 0.59 [95% CI, 0.49-0.71]), nocturnal hypertension (OR, 0.68 [95% CI, 0.58-0.79]), daytime and nocturnal hypertension (OR, 0.59 [95% CI, 0.48-0.71]), sustained hypertension (OR, 0.52 [95% CI, 0.39-0.70]), and masked hypertension (OR 0.75 [95% CI, 0.62-0.90]). A 1-unit higher log-aldosterone was associated with higher odds of nocturnal hypertension (OR, 1.38 [95% CI, 1.05-1.81]). Neither PRA nor aldosterone was associated with percent dipping, nondipping BP pattern, or white-coat hypertension. Patterns for aldosterone:renin ratio were similar to patterns for PRA. CONCLUSIONS Suppressed renin activity and higher aldosterone:renin ratios were associated with higher systolic BP and DBP in the office and during the awake and asleep periods as evidenced by ABP monitoring. Higher aldosterone levels were associated with higher DBP, but not systolic BP, in the clinic and during the awake and asleep periods. Further clinical investigation of novel and approved medications that target low renin physiology such as epithelial sodium channel inhibitors and mineralocorticoid receptor antagonists may be paramount in improving hypertension control in African Americans.
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Affiliation(s)
- Joshua J. Joseph
- The Ohio State University College of Medicine, Columbus, OH, USA
| | - Neal K. Pohlman
- The Ohio State University College of Medicine, Columbus, OH, USA
| | - Songzhu Zhao
- The Ohio State University College of Medicine, Columbus, OH, USA
| | - David Kline
- The Ohio State University College of Medicine, Columbus, OH, USA
| | - Guy Brock
- The Ohio State University College of Medicine, Columbus, OH, USA
| | - Justin B. Echouffo-Tcheugui
- Division of Endocrinology, Diabetes and Metabolism, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Mario Sims
- Department of Medicine, University of Mississippi Medical Center, Jackson, MS, United States
| | - Valery S. Effoe
- Department of Medicine, Morehouse School of Medicine, Atlanta, GA, USA
| | - Wen-Chih Wu
- Department of Medicine, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Rita R. Kalyani
- Division of Endocrinology, Diabetes and Metabolism, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Gary S. Wand
- Division of Endocrinology, Diabetes and Metabolism, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Bjorn Kluwe
- The Ohio State University College of Medicine, Columbus, OH, USA
| | - Willa A. Hsueh
- The Ohio State University College of Medicine, Columbus, OH, USA
| | - Marwah Abdalla
- Division of Cardiology, Columbia University, New York, NY, USA
| | - Daichi Shimbo
- Division of Cardiology, Columbia University, New York, NY, USA
| | - Sherita H. Golden
- Division of Endocrinology, Diabetes and Metabolism, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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18
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Affiliation(s)
- Brian L Rayner
- Division of Nephrology and Hypertension, University of Cape Town, Groote Schuur Hospital, South Africa (B.L.R.)
| | - J David Spence
- Stroke Prevention & Atherosclerosis Research Centre, Robarts Research Institute, Western University, London, ON, Canada (J.D.S.)
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19
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Kawarazaki W, Fujita T. Kidney and epigenetic mechanisms of salt-sensitive hypertension. Nat Rev Nephrol 2021; 17:350-363. [PMID: 33627838 DOI: 10.1038/s41581-021-00399-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/21/2021] [Indexed: 02/07/2023]
Abstract
Dietary salt intake increases blood pressure (BP) but the salt sensitivity of BP differs between individuals. The interplay of ageing, genetics and environmental factors, including malnutrition and stress, contributes to BP salt sensitivity. In adults, obesity is often associated with salt-sensitive hypertension. The children of women who experience malnutrition during pregnancy are at increased risk of developing obesity, diabetes and salt-sensitive hypertension as adults. Similarly, the offspring of mice that are fed a low-protein diet during pregnancy develop salt-sensitive hypertension in association with aberrant DNA methylation of the gene encoding type 1A angiotensin II receptor (AT1AR) in the hypothalamus, leading to upregulation of hypothalamic AT1AR and renal sympathetic overactivity. Ageing is also associated with salt-sensitive hypertension. In aged mice, promoter methylation leads to reduced kidney production of the anti-ageing factor Klotho and a decrease in circulating soluble Klotho. In the setting of Klotho deficiency, salt-induced activation of the vascular Wnt5a-RhoA pathway leads to ageing-associated salt-sensitive hypertension, potentially as a result of reduced renal blood flow and increased peripheral resistance. Thus, kidney mechanisms and aberrant DNA methylation of certain genes are involved in the development of salt-sensitive hypertension during fetal development and old age. Three distinct paradigms of epigenetic memory operate on different timescales in prenatal malnutrition, obesity and ageing.
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Affiliation(s)
- Wakako Kawarazaki
- Division of Clinical Epigenetics, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan
| | - Toshiro Fujita
- Division of Clinical Epigenetics, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan. .,School of Medicine, Shinshu University, Matsumoto, Japan. .,Research Center for Social Systems, Shinshu University, Matsumoto, Japan.
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20
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García-Carro C, Vergara A, Bermejo S, Azancot MA, Sellarés J, Soler MJ. A Nephrologist Perspective on Obesity: From Kidney Injury to Clinical Management. Front Med (Lausanne) 2021; 8:655871. [PMID: 33928108 PMCID: PMC8076523 DOI: 10.3389/fmed.2021.655871] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 03/15/2021] [Indexed: 12/13/2022] Open
Abstract
Obesity is one of the epidemics of our era. Its prevalence is higher than 30% in the U.S. and it is estimated to increase by 50% in 2030. Obesity is associated with a higher risk of all-cause mortality and it is known to be a cause of chronic kidney disease (CKD). Typically, obesity-related glomerulopathy (ORG) is ascribed to renal hemodynamic changes that lead to hyperfiltration, albuminuria and, finally, impairment in glomerular filtration rate due to glomerulosclerosis. Though not only hemodynamics are responsible for ORG: adipokines could cause local effects on mesangial and tubular cells and podocytes promoting maladaptive responses to hyperfiltration. Furthermore, hypertension and type 2 diabetes mellitus, two conditions generally associated with obesity, are both amplifiers of obesity injury in the renal parenchyma, as well as complications of overweight. As in the native kidney, obesity is also related to worse outcomes in kidney transplantation. Despite its impact in CKD and cardiovascular morbility and mortality, therapeutic strategies to fight against obesity-related CKD were limited for decades to renin-angiotensin blockade and bariatric surgery for patients who accomplished very restrictive criteria. Last years, different drugs have been approved or are under study for the treatment of obesity. Glucagon-like peptide-1 receptor agonists are promising in obesity-related CKD since they have shown benefits in terms of losing weight in obese patients, as well as preventing the onset of macroalbuminuria and slowing the decline of eGFR in type 2 diabetes. These new families of glucose-lowering drugs are a new frontier to be crossed by nephrologists to stop obesity-related CKD progression.
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Affiliation(s)
- Clara García-Carro
- Nephrology Department, San Carlos Clinical University Hospital, Madrid, Spain
| | - Ander Vergara
- Nephrology Department, Vall d'Hebron University Hospital, Barcelona, Spain
- Nephrology Group, Vall d'Hebron Research Institute, Barcelona, Spain
| | - Sheila Bermejo
- Nephrology Department, Vall d'Hebron University Hospital, Barcelona, Spain
- Nephrology Group, Vall d'Hebron Research Institute, Barcelona, Spain
| | - María A. Azancot
- Nephrology Department, Vall d'Hebron University Hospital, Barcelona, Spain
- Nephrology Group, Vall d'Hebron Research Institute, Barcelona, Spain
| | - Joana Sellarés
- Nephrology Department, Vall d'Hebron University Hospital, Barcelona, Spain
- Nephrology Group, Vall d'Hebron Research Institute, Barcelona, Spain
| | - Maria José Soler
- Nephrology Department, Vall d'Hebron University Hospital, Barcelona, Spain
- Nephrology Group, Vall d'Hebron Research Institute, Barcelona, Spain
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21
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Ayuzawa N, Fujita T. The Mineralocorticoid Receptor in Salt-Sensitive Hypertension and Renal Injury. J Am Soc Nephrol 2021; 32:279-289. [PMID: 33397690 PMCID: PMC8054893 DOI: 10.1681/asn.2020071041] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Hypertension and its comorbidities pose a major public health problem associated with disease-associated factors related to a modern lifestyle, such high salt intake or obesity. Accumulating evidence has demonstrated that aldosterone and its receptor, the mineralocorticoid receptor (MR), have crucial roles in the development of salt-sensitive hypertension and coexisting cardiovascular and renal injuries. Accordingly, clinical trials have repetitively shown the promising effects of MR blockers in these diseases. We and other researchers have identified novel mechanisms of MR activation involved in salt-sensitive hypertension and renal injury, including the obesity-derived overproduction of aldosterone and ligand-independent signaling. Moreover, recent advances in the analysis of cell-specific and context-dependent mechanisms of MR activation in various tissues-including a classic target of aldosterone, aldosterone-sensitive distal nephrons-are now providing new insights. In this review, we summarize recent updates to our understanding of aldosterone-MR signaling, focusing on its role in salt-sensitive hypertension and renal injury.
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Affiliation(s)
- Nobuhiro Ayuzawa
- Division of Clinical Epigenetics, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan
| | - Toshiro Fujita
- Division of Clinical Epigenetics, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan,Shinshu University School of Medicine, Nagano, Japan,Research Center for Social Systems, Shinshu University, Nagano, Japan
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22
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Jones E, Rayner B. The importance of the epithelial sodium channel in determining salt sensitivity in people of African origin. Pediatr Nephrol 2021; 36:237-243. [PMID: 31897716 DOI: 10.1007/s00467-019-04427-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 11/13/2019] [Accepted: 11/19/2019] [Indexed: 12/20/2022]
Abstract
Hypertension is highly prevalent in Black Africans and has been found to be associated with worse blood pressure (BP) control and more cardiovascular disease. Black Africans are more salt sensitive with low renin and aldosterone levels. This can be explained in part by variants in the epithelial sodium channel (ENaC) causing an increase in channel activity resulting in sodium and water retention. These variants in the ENaC are increased in the Black African populations presumably due to selective pressure for sodium retention in traditionally low-salt diets. Furthermore, increased endothelial sodium channel activity contributes to the risk of vascular stiffness, which may also result in more difficult to control hypertension. Patients with increased activity of the ENaC are more likely to respond to amiloride (a selective sodium channel antagonist), which has implications for the management of severe and resistant hypertension in Black Africans. A large-scale controlled trial on the use of amiloride compared to usual care is warranted in Blacks with severe or resistant hypertension.
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Affiliation(s)
- Erika Jones
- Division of Nephrology and Hypertension, University of Cape Town, Cape Town, South Africa
| | - Brian Rayner
- Division of Nephrology and Hypertension, University of Cape Town, Cape Town, South Africa. .,E13 Groote Schuur Hospital, Observatory, Cape Town, 7925, South Africa.
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Berney M, Vakilzadeh N, Maillard M, Faouzi M, Grouzmann E, Bonny O, Favre L, Wuerzner G. Bariatric Surgery Induces a Differential Effect on Plasma Aldosterone in Comparison to Dietary Advice Alone. Front Endocrinol (Lausanne) 2021; 12:745045. [PMID: 34675881 PMCID: PMC8525894 DOI: 10.3389/fendo.2021.745045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 09/13/2021] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND AND OBJECTIVES The pathophysiological mechanisms linking weight loss to blood pressure (BP) reduction are not completely understood. The objective of this study was to compare the effect of weight loss after Roux-en-Y gastric bypass (RYGB) on BP, renin-angiotensin-aldosterone system (RAAS), and urinary electrolytes excretion to those of dietary advice. METHODS This was a case-control prospective study including obese patients referred for RYGB (cases) and obese receiving diet advice only (controls). Ambulatory BP, plasma renin activity (PRA), plasma aldosterone concentration (PAC), and urinary electrolytes were measured before (M0) and after intervention (M3: 3 months and M12: 12 months). RESULTS Twenty-five patients were included in the RYGB group and twelve patients in the control group. After 12 months, weight loss (-42 ± 11.5 vs -12.3 ± 6.3 kg in the control group, p=0.001) and decrease in PAC were more pronounced in the RYGB group (-34 ± 76 vs +14 ± 45 pg/ml in the control group, p=0.002). There was no difference in PRA between both groups (-0.08 ± 1.68 vs 0.01 ± 0.37 ng/ml/h, p=0.31). Sodium excretion was more marked in the RYGB group after 3 months only (-89 ± 14.9 vs -9.9 ± 27.9 mmol/day, p=0.009). The decrease in SBP was similar between both groups (-6.9 ± 9.9 vs -7.1 ± 11.9 mmHg in the control group, p=0.96). CONCLUSIONS Bariatric-induced weight loss induces a progressive decrease in PAC independently of PRA and sodium excretion. Whether this decrease in PAC affects target organ damage in the long term remains to be determined. CLINICAL TRIAL REGISTRATION ClinicalTrials.gov, identifier NCT02218112.
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Affiliation(s)
- Maxime Berney
- Service of Nephrology and Hypertension, Department of Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Nima Vakilzadeh
- Service of Nephrology and Hypertension, Department of Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Marc Maillard
- Service of Nephrology and Hypertension, Department of Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Mohamed Faouzi
- Département de Formation, Recherche et Innovation, Unisanté, University of Lausanne, Lausanne, Switzerland
| | - Eric Grouzmann
- Laboratoire des Catécholamines et Peptides, Service de Biomédecine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Olivier Bonny
- Service of Nephrology and Hypertension, Department of Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
- Department of Biomedical Sciences, University of Lausanne, Lausanne, Switzerland
| | - Lucie Favre
- Service of Endocrinology, Diabetes and Metabolism, Lausanne University Hospital, Lausanne, Switzerland
| | - Grégoire Wuerzner
- Service of Nephrology and Hypertension, Department of Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
- *Correspondence: Grégoire Wuerzner, ; orcid.org/0000-0002-6424-7630
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Action Mechanism of Rosella ( Hibiscus sabdariffa L.) Used to Treat Metabolic Syndrome in Elderly Women. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:5351318. [PMID: 33005201 PMCID: PMC7509568 DOI: 10.1155/2020/5351318] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 08/21/2020] [Accepted: 09/06/2020] [Indexed: 02/05/2023]
Abstract
Objective Rosella is a safe medicinal herb used by people in Indonesia. They believe that rosella is effective in controlling metabolic syndrome, working with antihypertension, antidiabetic, antidyslipidemia and antiobesity effects. The purpose of this study was to determine the effect of rosella in controlling metabolic syndrome through the secretion of blood nitric oxide (NO) and the cortisol pathway. Methods This study was a quasiexperimental, pretest-posttest with control group design. The total subjects were 18 people, women, and the elderly. Subjects were selected randomly into 2 groups: control group (n = 8) and treatment group (n = 8). The treatment was rosella tea, a dose of 2 grams, duration 2 times a day, given in the morning (08.00–8.30 a.m.) and evening (06.30–7.00 p.m.) after meals for 21 days. Examination of NO and cortisol levels was carried out using the enzyme-linked immunosorbent assay (ELISA) method. Results There was a significant decrease in bodyweight (BW) (p = 0.021), systolic blood pressure (SBP) (p = 0.001), diastolic blood pressure (DBP) (p = 0.049), glucose preprandial (FPG) (p = 0.014), total cholesterol (CT) (p = 0.001), triglycerides (TGs) (p = 0.014), high-density lipoprotein (HDL) (p = 0.001), and low-density lipoprotein (LDL) (p = 0.010) after consuming rosella. NO levels were significantly increased (p = 0.012), whereas cortisol levels decreased significantly (p = 0.008) after therapy with rosella tea in elderly women. Conclusion Rosella has shown evidence to control and lower blood pressure, blood glucose, lipid profile, and cortisol in the elderly with metabolic syndrome. Rosella is a traditional medicine that has the potential to be developed as a therapy for metabolic syndrome patients.
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Joseph JJ, Zhou X, Zilbermint M, Stratakis CA, Faucz FR, Lodish MB, Berthon A, Wilson JG, Hsueh WA, Golden SH, Lin S. The Association of ARMC5 with the Renin-Angiotensin-Aldosterone System, Blood Pressure, and Glycemia in African Americans. J Clin Endocrinol Metab 2020; 105:5841631. [PMID: 32436940 PMCID: PMC7308077 DOI: 10.1210/clinem/dgaa290] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 05/18/2020] [Indexed: 12/31/2022]
Abstract
CONTEXT Armadillo repeat containing 5 (ARMC5) on chromosome 16 is an adrenal gland tumor suppressor gene associated with primary aldosteronism, especially among African Americans (AAs). We examined the association of ARMC5 variants with aldosterone, plasma renin activity (PRA), blood pressure, glucose, and glycosylated hemoglobin A1c (HbA1c) in community-dwelling AAs. METHODS The Jackson Heart Study is a prospective cardiovascular cohort study in AAs with baseline data collection from 2000 to 2004. Kernel machine method was used to perform a single joint test to analyze for an overall association between the phenotypes of interest (aldosterone, PRA, systolic and diastolic blood pressure [SBP, DBP], glucose, and HbA1c) and the ARMC5 single nucleotide variants (SNVs) adjusted for age, sex, BMI, and medications; followed by Baysian Lasso methodology to identify sets of SNVs in terms of associated haplotypes with specific phenotypes. RESULTS Among 3223 participants (62% female; mean age 55.6 (SD ± 12.8) years), the average SBP and DBP were 127 and 76 mmHg, respectively. The average fasting plasma glucose and HbA1c were 101 mg/dL and 6.0%, respectively. ARMC5 variants were associated with all 6 phenotypes. Haplotype TCGCC (ch16:31476015-31476093) was negatively associated, whereas haplotype CCCCTTGCG (ch16:31477195-31477460) was positively associated with SBP, DBP, and glucose. Haplotypes GGACG (ch16:31477790-31478013) and ACGCG (ch16:31477834-31478113) were negatively associated with aldosterone and positively associated with HbA1c and glucose, respectively. Haplotype GCGCGAGC (ch16:31471193-ch16:31473597(rs114871627) was positively associated with PRA and negatively associated with HbA1c. CONCLUSIONS ARMC5 variants are associated with aldosterone, PRA, blood pressure, fasting glucose, and HbA1c in community-dwelling AAs, suggesting that germline mutations in ARMC5 may underlie cardiometabolic disease in AAs.
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Affiliation(s)
- Joshua J Joseph
- The Ohio State University, Columbus, Ohio
- Correspondence and Reprint Requests: Joshua J. Joseph, MD, Department of Medicine, The Ohio State University Wexner Medical Center, 566 McCampbell Hall, 1581 Dodd Drive, Columbus, OH 43210; Phone: 614-346-8878; Fax: 614-366-0345;
| | | | - Mihail Zilbermint
- Division of Endocrinology, Diabetes and Metabolism, Johns Hopkins University School of Medicine, Baltimore, Maryland
- Section on Endocrinology and Genetics, The Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland
- Johns Hopkins Community Physicians at Suburban Hospital, Bethesda, Maryland
| | - Constantine A Stratakis
- Section on Endocrinology and Genetics, The Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland
| | - Fabio R Faucz
- Section on Endocrinology and Genetics, The Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland
| | - Maya B Lodish
- Division of Pediatric Endocrinology and Diabetes, University of California, San Francisco, San Francisco, California
| | - Annabel Berthon
- Institut Cochin, Centre National de la Recherche Scientifique (CNRS), INSERM, Université Paris Descartes, Paris, France
| | - James G Wilson
- Department of Medicine, University of Mississippi Medical Center, Jackson, Mississippi
- Division of Cardiology, Beth Israel Deaconess Medical Center, Boston, Massachusetts
| | | | - Sherita H Golden
- Division of Endocrinology, Diabetes and Metabolism, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Shili Lin
- The Ohio State University, Columbus, Ohio
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Kidambi S, Wang T, Chelius T, Nunuk I, Agarwal P, Laud P, Mattson D, Cowley AW, Liang M, Kotchen T. Twenty-four-hour versus clinic blood pressure levels as predictors of long-term cardiovascular and renal disease outcomes among African Americans. Sci Rep 2020; 10:11685. [PMID: 32669581 PMCID: PMC7363933 DOI: 10.1038/s41598-020-68466-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 06/25/2020] [Indexed: 01/10/2023] Open
Abstract
In Caucasian and Asian populations, evidence suggests that 24-h blood pressures (BP) are more predictive of long-term cardiovascular events than clinic BP. However, few long-term studies have evaluated the predictive value of 24-h BP phenotypes (24-h, daytime, nighttime) among African Americans (AA). The purpose of this study is to evaluate the added value of 24-h BP phenotypes compared to clinic BP in predicting the subsequent fatal and non-fatal cardiovascular/renal disease events in AA subjects. AA subjects (n = 270) were initially studied between 1994 and 2006 and standardized clinic BP measurements were obtained during screening procedures for a 3-day inpatient clinical study during which 24-h BP measurements were obtained. To assess the subsequent incidence of cardiovascular and renal disease events, follow-up information was obtained and confirmed by review of paper and electronic medical records between 2015 and 2017. During a mean follow-up of 14 ± 4 years, 50 subjects had one or more fatal or non-fatal cardiovascular/renal disease events. After adjustment for covariates, clinic systolic and diastolic BP were strongly associated with cardiovascular/renal disease events and all-cause mortality (p < 0.0001). Twenty-four-hour BP phenotypes conferred a small incremental advantage over clinic BP in predicting cardiovascular/renal events, which was limited to making a difference of one predicted event in 250-1,000 predictions depending on the 24-h BP phenotype. Nocturnal BP was no more predictive than the other 24-h BP phenotypes. In AA, 24-h BP monitoring provides limited added value as a predictor of cardiovascular/renal disease events. Larger studies are needed in AA to confirm these findings.
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Affiliation(s)
- Srividya Kidambi
- Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA.
| | - Tao Wang
- Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA
| | - Thomas Chelius
- Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA
| | - Irene Nunuk
- Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA
| | - Priyanka Agarwal
- Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA
| | - Purushottam Laud
- Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA
| | - David Mattson
- Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA
| | - Allen W Cowley
- Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA
| | - Mingyu Liang
- Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA
| | - Theodore Kotchen
- Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI, 53226, USA
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Lehrer HM, Steinhardt MA, Dubois SK, Laudenslager ML. Perceived stress, psychological resilience, hair cortisol concentration, and metabolic syndrome severity: A moderated mediation model. Psychoneuroendocrinology 2020; 113:104510. [PMID: 31911349 PMCID: PMC7769194 DOI: 10.1016/j.psyneuen.2019.104510] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Revised: 09/22/2019] [Accepted: 11/07/2019] [Indexed: 12/25/2022]
Abstract
BACKGROUND Psychological resilience is considered to protect against detrimental effects of perceived stress on cardiovascular and metabolic health, but few studies have tested biological mechanisms underlying these relationships. PURPOSE This study examined whether psychological resilience moderated the indirect association of perceived stress with Metabolic Syndrome (MetS) severity via hair cortisol concentration (HCC), a retrospective index of hypothalamic pituitary adrenal (HPA) axis activity. METHOD Participants included 228 adults (73 White, 86 Hispanic, 69 African American; mean age 45.29 years; 68% females). Participants completed questionnaires assessing perceived stress (Perceived Stress Scale) and resilience (Brief Resilience Scale). The first 3 cm of scalp-near hair were analyzed for cortisol concentration using enzyme-linked immunoassay analysis. Cardiometabolic risk factors including blood glucose, lipids, blood pressure, and waist circumference were assessed, from which a sex- and race/ethnicity-specific continuous MetS severity score was calculated. A moderated mediation model was tested using path analysis. RESULTS Psychological resilience moderated the association of perceived stress with HCC (R2 change for interaction = 0.014, p = 0.043), such that the association of perceived stress and HCC decreased as resilience scores increased. Resilience also moderated the indirect association of perceived stress with MetS severity via HCC (b = -0.039, 95% CI [-0.001; -0.100]), such that HCC mediated the association of greater perceived stress with greater MetS severity only for individuals reporting Brief Resilience Scale scores 3 or below (range: 1.17-5.00). Psychological resilience was also associated with lower MetS severity (β = -0.227, p = 0.014) independent of perceived stress and HCC. CONCLUSION Findings suggest that psychological resilience may serve as both a stress buffer and as a direct determinant of cardiometabolic health. These results extend literature on psychological resilience to measures of retrospective HPA axis function and MetS severity in a diverse sample.
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Affiliation(s)
- H. Matthew Lehrer
- Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, TX, USA
| | - Mary A. Steinhardt
- Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, TX, USA
| | - Susan K. Dubois
- Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, TX, USA,Department of Internal Medicine, Dell Medical School, The University of Texas at Austin, Austin, TX, USA
| | - Mark L. Laudenslager
- Department of Psychiatry, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
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Sueta D, Yamamoto E, Tsujita K. Mineralocorticoid Receptor Blockers: Novel Selective Nonsteroidal Mineralocorticoid Receptor Antagonists. Curr Hypertens Rep 2020; 22:21. [PMID: 32114686 DOI: 10.1007/s11906-020-1023-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
PURPOSE OF REVIEW Recently, nonsteroidal mineralocorticoid receptor (MR) antagonists (MRAs), which have been proposed to be called MR blockers (MRBs), have become available for clinical use, but their clinical role is unknown. We reviewed the clinical roles of MRAs and MRBs based on previous knowledge and as demonstrated in representative clinical trials. RECENT FINDINGS Steroidal MRAs, such as spironolactone and eplerenone, inhibit the action of aldosterone and cortisol in MRs expressed in several organs and cell types, and accumulating clinical studies have revealed that they exert hypotensive and cardiorenal protective effects. Recently, MRBs, including finerenone and esaxerenone, have been developed and are expected to lower the risk of hyperkalemia, which is common when steroidal MRAs are used. Although the differences between MRAs and MRBs in clinical practice have not yet been established, further studies in this field are expected to broaden our understanding. MRBs exert antihypertensive and cardiorenal protective effects, and their potency is thought to be far superior to that of MRAs, because MRBs have both strong MR inhibitory action and high selectivity. Thus, MRBs could be a promising agent for the treatment of hypertension and cardiorenal, cerebral, and metabolic disorders.
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Affiliation(s)
- Daisuke Sueta
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto City, 860-8556, Japan.
| | - Eiichiro Yamamoto
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto City, 860-8556, Japan
| | - Kenichi Tsujita
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto City, 860-8556, Japan
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Zhang J, Tian L, Guo L. Changes of aldosterone levels in patients with type 2 diabetes complicated by moderate to severe obstructive sleep apnea-hypopnea syndrome before and after treatment with continuous positive airway pressure. J Int Med Res 2019; 47:4723-4733. [PMID: 31446818 PMCID: PMC6833379 DOI: 10.1177/0300060519868337] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Objective Both obstructive sleep apnea–hypopnea syndrome (OSAHS) and type 2 diabetes mellitus (T2DM) are closely related to the renin-angiotensin-aldosterone system. We investigated whether hyperaldosteronemia is found in patients with OSAHS complicated by T2DM and whether continuous positive airway pressure (CPAP) treatment can significantly reduce the aldosterone level. Methods Patients with T2DM were classified into an OSAHS group [apnea–hypopnea index (AHI) of ≥15] and a control group (without OSAHS; AHI of <5). The OSAHS group was exposed to CPAP for 7 days (7 h/day). Results The plasma aldosterone, plasma renin, and urinary aldosterone levels were higher in the OSAHS than control group. The plasma aldosterone and renin levels were significantly lower after than before treatment in the OSAHS group, but they were still higher than the baseline levels in the control group. The post-treatment urinary aldosterone level was significantly higher in the OSAHS than control group. No correlation was found between the AHI and plasma renin, plasma aldosterone, and 24-hour urinary aldosterone levels. The blood glucose level in the OSAHS group did not significantly change after treatment. Conclusions The plasma and urine aldosterone levels are increased in patients with concurrent T2DM and OSAHS and are significantly reduced by CPAP. Trial registration: ChiCTR-ION-16009837
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Affiliation(s)
| | | | - Lixin Guo
- Lixin Guo, Department of Endocrinology, Beijing Hospital, National Center of Gerontology, No. 1 Dahua Road, Dongdan, Beijing 100730, China.
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Evaluation of the pathophysiological mechanisms of salt-sensitive hypertension. Hypertens Res 2019; 42:1848-1857. [PMID: 31541221 DOI: 10.1038/s41440-019-0332-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 08/24/2019] [Accepted: 08/27/2019] [Indexed: 12/23/2022]
Abstract
The currently available data have indicated that dietary salt is directly correlated with blood pressure (BP) and the occurrence of hypertension. However, the salt sensitivity of BP is different in each individual. Genetic factors and environmental factors influence the salt sensitivity of BP. Obesity, stress, and aging are strongly associated with increased BP salt sensitivity. Indeed, a complex and interactive genetic and environmental system can determine an individual's BP salt sensitivity. However, the genetic/epigenetic determinants leading to salt sensitivity of BP are still challenging to identify primarily because lifestyle-related diseases, including hypertension, usually become a medical problem during adulthood, although their causes may be attributed to the earlier stages of ontogeny. The association between distinct developmental periods involves changes in gene expression, which include epigenetic phenomena. The role of epigenetic modification in the development of salt-sensitive hypertension is presently under investigation. Recently, we identified aberrant DNA methylation in the context of prenatally programmed hypertension. In this review, we summarize the existing knowledge regarding the pathophysiological mechanisms of salt-sensitive hypertension. Additionally, we discuss the contribution of epigenetic mechanisms in the development of salt-sensitive hypertension.
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Zilbermint M, Gaye A, Berthon A, Hannah-Shmouni F, Faucz FR, Lodish MB, Davis AR, Gibbons GH, Stratakis CA. ARMC 5 Variants and Risk of Hypertension in Blacks: MH- GRID Study. J Am Heart Assoc 2019; 8:e012508. [PMID: 31266387 PMCID: PMC6662143 DOI: 10.1161/jaha.119.012508] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Background We recently found that ARMC5 variants may be associated with primary aldosteronism in blacks. We investigated a cohort from the MH‐GRID (Minority Health Genomics and Translational Research Bio‐Repository Database) and tested the association between ARMC5 variants and blood pressure in blacks. Methods and Results Whole exome sequencing data of 1377 blacks were analyzed. Target single‐variant and gene‐based association analyses of hypertension were performed for ARMC5, and replicated in a subset of 3015 individuals of African descent from the UK Biobank cohort. Sixteen rare variants were significantly associated with hypertension (P=0.0402) in the gene‐based (optimized sequenced kernel association test) analysis; the 16 and one other, rs116201073, together, showed a strong association (P=0.0003) with blood pressure in this data set. The presence of the rs116201073 variant was associated with lower blood pressure. We then used human embryonic kidney 293 and adrenocortical H295R cells transfected with an ARMC5 construct containing rs116201073 (c.*920T>C). The latter was common in both the discovery (MH‐GRID) and replication (UK Biobank) data and reached statistical significance (P=0.044 [odds ratio, 0.7] and P=0.007 [odds ratio, 0.76], respectively). The allele carrying rs116201073 increased levels of ARMC5 mRNA, consistent with its protective effect in the epidemiological data. Conclusions ARMC5 shows an association with hypertension in blacks when rare variants within the gene are considered. We also identified a protective variant of the ARMC5 gene with an effect on ARMC5 expression confirmed in vitro. These results extend our previous report of ARMC5’s possible involvement in the determination of blood pressure in blacks.
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Affiliation(s)
- Mihail Zilbermint
- 1 Section on Endocrinology and Genetics Eunice Kennedy Shriver National Institute of Child Health and Human Development National Institutes of Health Bethesda MD.,2 Division of Endocrinology, Diabetes, and Metabolism Johns Hopkins University School of Medicine Baltimore MD.,3 Johns Hopkins Community Physicians at Suburban Hospital Bethesda MD.,4 Johns Hopkins University Carey Business School Baltimore MD
| | - Amadou Gaye
- 5 Genomics of Metabolic, Cardiovascular and Inflammatory Disease Branch, Cardiovascular Section National Human Genome Research Institute Bethesda MD
| | - Annabel Berthon
- 1 Section on Endocrinology and Genetics Eunice Kennedy Shriver National Institute of Child Health and Human Development National Institutes of Health Bethesda MD
| | - Fady Hannah-Shmouni
- 1 Section on Endocrinology and Genetics Eunice Kennedy Shriver National Institute of Child Health and Human Development National Institutes of Health Bethesda MD
| | - Fabio R Faucz
- 1 Section on Endocrinology and Genetics Eunice Kennedy Shriver National Institute of Child Health and Human Development National Institutes of Health Bethesda MD
| | - Maya B Lodish
- 1 Section on Endocrinology and Genetics Eunice Kennedy Shriver National Institute of Child Health and Human Development National Institutes of Health Bethesda MD
| | - Adam R Davis
- 6 Technological Research and Innovation Uniformed Services University Bethesda MD
| | - Gary H Gibbons
- 5 Genomics of Metabolic, Cardiovascular and Inflammatory Disease Branch, Cardiovascular Section National Human Genome Research Institute Bethesda MD.,7 National Heart, Lung, and Blood Institute Bethesda MD
| | - Constantine A Stratakis
- 1 Section on Endocrinology and Genetics Eunice Kennedy Shriver National Institute of Child Health and Human Development National Institutes of Health Bethesda MD
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The Association of Life's Simple 7 with Aldosterone among African Americans in the Jackson Heart Study. Nutrients 2019; 11:nu11050955. [PMID: 31035479 PMCID: PMC6566676 DOI: 10.3390/nu11050955] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 04/19/2019] [Accepted: 04/22/2019] [Indexed: 01/21/2023] Open
Abstract
Background: Among African Americans (AAs), attaining higher levels of American Heart Association (AHA) ideal cardiovascular health (Life’s Simple 7 [LS7]) is associated with lower risk of diabetes and cardiovascular disease (CVD). We previously showed that aldosterone is associated with higher risk of diabetes and CVD in AAs. Thus, we investigated the association of LS7 metrics with aldosterone in the Jackson Heart Study (JHS). Methods: Ideal metrics were defined by AHA 2020 goals for health behaviors (smoking, dietary intake, physical activity, and body mass index) and health factors (total cholesterol, blood pressure, and fasting glucose). The number of ideal LS7 metrics attained at baseline were summed into a continuous score (0–7) and categorical groups (Poor: 0–1, Intermediate: 2–3, and Ideal: ≥4 ideal LS7 metrics). Multivariable linear regression was used. Results: Among 4,095 JHS participants (mean age 55 ± 13 years, 65% female), median serum aldosterone was 4.90, 4.30, and 3.70 ng/dL in the poor (n = 1132), intermediate (n = 2288) and ideal (n = 675) categories respectively. Aldosterone was 15% [0.85 (0.80, 0.90)] and 33% [0.67 (0.61, 0.75)] lower in the intermediate and ideal LS7 categories compared to the poor LS7 category. Each additional LS7 metric attained on continuous LS7 score (0–7) was associated with an 11% [0.89 (0.86, 0.91)] lower aldosterone level with variation by sex with women having a 15% lower aldosterone vs. 5% in men. Conclusions: Higher attainment of ideal LS7 metrics was associated with lower serum aldosterone among AAs with a greater magnitude of association among women compared to men.
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Liu GZ, Zhang S, Li YY, Liu YW, Zhang Y, Zhao XB, Yuan Y, Zhang JW, Khannanova Z, Li Y. Aldosterone stimulation mediates cardiac metabolism remodeling via Sirt1/AMPK signaling in canine model. Naunyn Schmiedebergs Arch Pharmacol 2019; 392:851-863. [PMID: 30852656 DOI: 10.1007/s00210-019-01641-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Accepted: 02/28/2019] [Indexed: 11/29/2022]
Abstract
Aldosterone (Aldo), a pivotal hormone that is ubiquitously expressed in systemic tissues of mammals, is a crucial factor in the pathogenesis of cardiac disease. Accumulating evidence suggests that disturbances in cell energy metabolism are involved in increasing aldosterone levels. However, the precise mechanism underlying the impact of cardiac metabolic remodeling underlying aldosterone stimulation remains limited. In this work, we evaluated the underlying effect of aldosterone on regulating cardiac metabolism remodeling in a canine model. Fifteen beagle dogs were divided into a control group (n = 5), Aldo group (n = 5), and a group treated with spironolactone (SP), a mineralocorticoid receptor antagonist (n = 5), for 4 weeks. Blood pressure, electrocardiogram and respiratory parameters, H&E, Masson staining, ultrastructural changes, the adenosine triphosphate (ATP) and free fatty acid (FFA) levels of ventricular tissues, the level of mRNA, and the protein expression of key metabolic factors and regulators were assessed. The Sirt1/AMPK signaling pathway was significantly inhibited in the canine model of aldosterone stimulation, resulting in a reduction of the key downstream metabolic factors involved in glucose and fatty acid oxidation. The dysregulation of expression of key factors in glycogen metabolism led to glycogen deposition, an increase in FFA levels, a reduction in ATP levels, apoptosis, inflammatory cell infiltration, and mitochondrial damage in the ventricular myocardium. These effects were significantly restored by spironolactone. Aldosterone stimulation induced cardiac metabolic remodeling in ventricular cardiomyocytes possibly through the Sirt1/AMPK signaling pathway, implying that this pathway may provide a novel therapeutic target for cardiac metabolic remodeling.
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Affiliation(s)
- Guang-Zhong Liu
- Department of Cardiology, the First Affiliated Hospital, Harbin Medical University, Youzheng Street 23#, Nangang District, Harbin, 150001, Heilongjiang Province, China
| | - Song Zhang
- Department of Cardiology, the First Affiliated Hospital, Harbin Medical University, Youzheng Street 23#, Nangang District, Harbin, 150001, Heilongjiang Province, China
| | - Yan-Yan Li
- Department of Cardiology, the First Affiliated Hospital, Harbin Medical University, Youzheng Street 23#, Nangang District, Harbin, 150001, Heilongjiang Province, China
| | - Yong-Wu Liu
- Centre for Drug Safety Evaluation, Heilongjiang University of Chinese Medicine, Harbin, 150001, Heilongjiang Province, China
| | - Yun Zhang
- Department of Cardiology, the First Affiliated Hospital, Harbin Medical University, Youzheng Street 23#, Nangang District, Harbin, 150001, Heilongjiang Province, China
| | - Xin-Bo Zhao
- Department of Cardiology, the First Affiliated Hospital, Harbin Medical University, Youzheng Street 23#, Nangang District, Harbin, 150001, Heilongjiang Province, China
| | - Yue Yuan
- Department of Cardiology, the First Affiliated Hospital, Harbin Medical University, Youzheng Street 23#, Nangang District, Harbin, 150001, Heilongjiang Province, China
| | - Jia-Wei Zhang
- Department of Cardiology, the First Affiliated Hospital, Harbin Medical University, Youzheng Street 23#, Nangang District, Harbin, 150001, Heilongjiang Province, China
| | - Zulfiia Khannanova
- Department of Cardiology, the First Affiliated Hospital, Harbin Medical University, Youzheng Street 23#, Nangang District, Harbin, 150001, Heilongjiang Province, China
| | - Yue Li
- Department of Cardiology, the First Affiliated Hospital, Harbin Medical University, Youzheng Street 23#, Nangang District, Harbin, 150001, Heilongjiang Province, China. .,Key Laboratory of Cardiac Diseases and Heart Failure, Harbin Medical University, Harbin, 150001, Heilongjiang Province, China. .,Institute of Metabolic Disease, Heilongjiang Academy of Medical Science, Harbin, 150001, Heilongjiang Province, China.
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Zilbermint M, Hannah-Shmouni F, Stratakis CA. Genetics of Hypertension in African Americans and Others of African Descent. Int J Mol Sci 2019; 20:ijms20051081. [PMID: 30832344 PMCID: PMC6429313 DOI: 10.3390/ijms20051081] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Revised: 02/19/2019] [Accepted: 02/21/2019] [Indexed: 02/07/2023] Open
Abstract
Hypertension is the leading cause of cardiovascular disease in the United States, affecting up to one-third of adults. When compared to other ethnic or racial groups in the United States, African Americans and other people of African descent show a higher incidence of hypertension and its related comorbidities; however, the genetics of hypertension in these populations has not been studied adequately. Several genes have been identified to play a role in the genetics of hypertension. They include genes regulating the renin-aldosterone-angiotensin system (RAAS), such as Sodium Channel Epithelial 1 Beta Subunit (SCNN1B), Armadillo Repeat Containing 5 (ARMC5), G Protein-Coupled Receptor Kinase 4 (GRK4), and Calcium Voltage-Gated Channel Subunit Alpha1 D (CACNA1D). In this review, we focus on recent genetic findings available in the public domain for potential differences between African Americans and other populations. We also cover some recent and relevant discoveries in the field of low-renin hypertension from our laboratory at the National Institutes of Health. Understanding the different genetics of hypertension among various groups is essential for effective precision-guided medical therapy of high blood pressure.
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Affiliation(s)
- Mihail Zilbermint
- Section on Endocrinology and Genetics, The Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, BG 31 RM 2A46, 31 Center Dr, Bethesda, MD 20892, USA.
- Division of Endocrinology, Diabetes, and Metabolism, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.
- Johns Hopkins Community Physicians at Suburban Hospital, Bethesda, MD 20814, USA.
- Johns Hopkins University Carey Business School, Baltimore, MD 21202, USA.
| | - Fady Hannah-Shmouni
- Section on Endocrinology and Genetics, The Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, BG 31 RM 2A46, 31 Center Dr, Bethesda, MD 20892, USA.
| | - Constantine A Stratakis
- Section on Endocrinology and Genetics, The Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, BG 31 RM 2A46, 31 Center Dr, Bethesda, MD 20892, USA.
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Bothou C, Beuschlein F, Spyroglou A. Links between aldosterone excess and metabolic complications: A comprehensive review. DIABETES & METABOLISM 2019; 46:1-7. [PMID: 30825519 DOI: 10.1016/j.diabet.2019.02.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Revised: 02/13/2019] [Accepted: 02/17/2019] [Indexed: 02/04/2023]
Abstract
Shortly after the first description of primary aldosteronism (PA) appeared in the 1950s by Jerome Conn, an association of the condition with diabetes mellitus was documented. However, a clear pathophysiological interrelationship linking the two entities has yet to be established. Nevertheless, so far, many mechanisms contributing to insulin resistance and dysregulation of glucose uptake have been described. At the same time, many observational studies have reported an increased prevalence of the metabolic syndrome (MetS) among patients with PA. Regarding the relationship between aldosterone levels and obesity, a vicious cycle of adipokine-induced aldosterone production and aldosterone adipogenic action may be further contributing to MetS manifestations in PA patients. However, whether aldosterone excess affects lipid metabolism is still under investigation. Also, recent findings of the coexistence of glucocorticoid excess in many cases of PA highlight the need for further studies to examine the presumed link between high aldosterone levels and various metabolic parameters. In the present review, our focus is to comprehensively present the spectrum of available research findings concerning the possible associations between aldosterone excess and metabolic alterations, including impaired glucose metabolism, insulin resistance and, consequently, diabetes, altered lipid metabolism and the development of fatty liver. In addition, the complex relationship between obesity and aldosterone is discussed in detail.
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Affiliation(s)
- C Bothou
- Klinik für Endokrinologie, Diabetologie und Klinische Ernährung, UniversitätsSpital Zürich, Zürich, Switzerland; Competence Centre of Personalized Medicine, Molecular and Translational Biomedicine PhD Program, University of Zurich, Zurich, Switzerland
| | - F Beuschlein
- Klinik für Endokrinologie, Diabetologie und Klinische Ernährung, UniversitätsSpital Zürich, Zürich, Switzerland; Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, LMU, Munich, Germany.
| | - A Spyroglou
- Klinik für Endokrinologie, Diabetologie und Klinische Ernährung, UniversitätsSpital Zürich, Zürich, Switzerland
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Ohno Y, Sone M, Inagaki N, Yamasaki T, Ogawa O, Takeda Y, Kurihara I, Umakoshi H, Ichijo T, Katabami T, Wada N, Ogawa Y, Yoshimoto T, Kawashima J, Watanabe M, Matsuda Y, Kobayashi H, Shibata H, Miyauchi S, Kamemura K, Fukuoka T, Yamamoto K, Otsuki M, Suzuki T, Naruse M. Obesity as a Key Factor Underlying Idiopathic Hyperaldosteronism. J Clin Endocrinol Metab 2018; 103:4456-4464. [PMID: 30165444 DOI: 10.1210/jc.2018-00866] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 08/21/2018] [Indexed: 01/02/2023]
Abstract
CONTEXT Recently, the relationship between primary aldosteronism (PA) and various metabolic disorders, including obesity, diabetes mellitus, and dyslipidemia, has been discussed. However, in PA, aldosterone-producing adenoma (APA) and idiopathic hyperaldosteronism (IHA) have different etiologies. OBJECTIVE Our objectives were to clarify differences in obesity and metabolic disorders between APA and IHA and to gain insight in the pathogenesis of IHA. DESIGN, SETTING, AND PARTICIPANTS This is a retrospective cross-sectional study. We assessed the PA database established by the multicenter Japan Primary Aldosteronism Study. For comparative analysis, data were also collected from 274 patients with essential hypertension (EHT). MAIN OUTCOME MEASURES We compared prevalences of obesity and metabolic disorders between patients with APA and patients with IHA. Comparisons with sex-, age-, and blood pressure-matched patients with EHT were also performed. Correlations between metabolic parameters and plasma aldosterone concentrations (PACs) in each subtype were analyzed. RESULTS Analysis of 516 patients with APA and 1015 patients with IHA revealed PACs were significantly higher in patients with APA than patients with IHA. By contrast, after we adjusted for clinical backgrounds, the prevalence of obesity was significantly higher in patients with IHA than in patients with APA or EHT. Although the prevalences of diabetes mellitus and dyslipidemia did not significantly differ between patients with IHA and patients with APA, triglyceride and HbA1c were significantly higher in patients with IHA than in patients with APA. There was no significant correlation between metabolic parameters and PACs in either subtype. CONCLUSIONS Patients with IHA tend to be obese despite lower PACs than in patients with APA. The present results suggest that obesity-related factors contribute to the pathogenesis of IHA.
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Affiliation(s)
- Youichi Ohno
- Department of Diabetes, Endocrinology and Nutrition, Kyoto University, Kyoto, Japan
| | - Masakatsu Sone
- Department of Diabetes, Endocrinology and Nutrition, Kyoto University, Kyoto, Japan
| | - Nobuya Inagaki
- Department of Diabetes, Endocrinology and Nutrition, Kyoto University, Kyoto, Japan
| | | | - Osamu Ogawa
- Department of Urology, Kyoto University, Kyoto, Japan
| | - Yoshiyu Takeda
- Department of Internal Medicine, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Isao Kurihara
- Department of Endocrinology, Metabolism and Nephrology, Keio University School of Medicine, Tokyo, Japan
| | - Hironobu Umakoshi
- Department of Endocrinology and Metabolism, National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - Takamasa Ichijo
- Department of Endocrinology and Metabolism, Saiseikai Yokohamashi Tobu Hospital, Yokohama, Japan
| | - Takuyuki Katabami
- Division of Metabolism and Endocrinology, Department of Internal Medicine, St. Marianna University School of Medicine Yokohama City Seibu Hospital, Yokohama, Japan
| | - Norio Wada
- Department of Diabetes and Endocrinology, Sapporo City General Hospital, Sapporo, Japan
| | - Yoshihiro Ogawa
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Takanobu Yoshimoto
- Department of Molecular Endocrinology and Metabolism, Tokyo Medical and Dental University, Tokyo, Japan
| | - Junji Kawashima
- Department of Metabolic Medicine, Faculty of Life Science, Kumamoto University, Kumamoto, Japan
| | - Minemori Watanabe
- Department of Endocrinology and Diabetes, Okazaki City Hospital, Okazaki, Japan
| | - Yuichi Matsuda
- Department of Cardiology, Sanda City Hospital, Sanda, Japan
| | - Hiroki Kobayashi
- Division of Nephrology, Hypertension and Endocrinology, Nihon University School of Medicine, Tokyo, Japan
| | - Hirotaka Shibata
- Department of Endocrinology, Metabolism, Rheumatology and Nephrology, Faculty of Medicine, Oita University, Yufu, Japan
| | - Shozo Miyauchi
- Department of Internal Medicine, Uwajima City Hospital, Uwajima, Japan
| | - Kohei Kamemura
- Department of Cardiology, Akashi Medical Center, Akashi, Japan
| | - Tomikazu Fukuoka
- Department of Internal Medicine, Matsuyama Red Cross Hospital, Matsuyama, Japan
| | - Koichi Yamamoto
- Department of Geriatric and General Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Michio Otsuki
- Department of Metabolic Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Tomoko Suzuki
- Department of Public Health, School of Medicine, International University of Health and Welfare, Narita, Japan
| | - Mitsuhide Naruse
- Department of Endocrinology and Metabolism, National Hospital Organization Kyoto Medical Center, Kyoto, Japan
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Gorini S, Marzolla V, Mammi C, Armani A, Caprio M. Mineralocorticoid Receptor and Aldosterone-Related Biomarkers of End-Organ Damage in Cardiometabolic Disease. Biomolecules 2018; 8:biom8030096. [PMID: 30231508 PMCID: PMC6165349 DOI: 10.3390/biom8030096] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 09/10/2018] [Accepted: 09/12/2018] [Indexed: 12/11/2022] Open
Abstract
The mineralocorticoid receptor (MR) was first identified as a blood pressure regulator, modulating renal sodium handling in response to its principal ligand aldosterone. The mineralocorticoid receptor is also expressed in many tissues other than the kidney, such as adipose tissue, heart and vasculature. Recent studies have shown that MR plays a relevant role in the control of cardiovascular and metabolic function, as well as in adipogenesis. Dysregulation of aldosterone/MR signaling represents an important cause of disease as high plasma levels of aldosterone are associated with hypertension, obesity and increased cardiovascular risk. Aldosterone displays powerful vascular effects and acts as a potent pro-fibrotic agent in cardiovascular remodeling. Mineralocorticoid receptor activation regulates genes involved in vascular and cardiac fibrosis, calcification and inflammation. This review focuses on the role of novel potential biomarkers related to aldosterone/MR system that could help identify cardiovascular and metabolic detrimental conditions, as a result of altered MR activation. Specifically, we discuss: (1) how MR signaling regulates the number and function of different subpopulations of circulating and intra-tissue immune cells; (2) the role of aldosterone/MR system in mediating cardiometabolic diseases induced by obesity; and (3) the role of several MR downstream molecules as novel potential biomarkers of cardiometabolic diseases, end-organ damage and rehabilitation outcome.
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Affiliation(s)
- Stefania Gorini
- Laboratory of Cardiovascular Endocrinology, IRCCS San Raffaele Pisana, Via di Val Cannuta 247, 00166 Rome, Italy.
| | - Vincenzo Marzolla
- Laboratory of Cardiovascular Endocrinology, IRCCS San Raffaele Pisana, Via di Val Cannuta 247, 00166 Rome, Italy.
| | - Caterina Mammi
- Laboratory of Cardiovascular Endocrinology, IRCCS San Raffaele Pisana, Via di Val Cannuta 247, 00166 Rome, Italy.
| | - Andrea Armani
- Laboratory of Cardiovascular Endocrinology, IRCCS San Raffaele Pisana, Via di Val Cannuta 247, 00166 Rome, Italy.
| | - Massimiliano Caprio
- Laboratory of Cardiovascular Endocrinology, IRCCS San Raffaele Pisana, Via di Val Cannuta 247, 00166 Rome, Italy.
- Department of Human Sciences and Promotion of the Quality of Life, San Raffaele Roma Open University, 00166 Rome, Italy.
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Shibayama Y, Wada N, Baba S, Miyano Y, Obara S, Iwasaki R, Nakajima H, Sakai H, Usubuchi H, Terae S, Nakamura A, Atsumi T. Relationship Between Visceral Fat and Plasma Aldosterone Concentration in Patients With Primary Aldosteronism. J Endocr Soc 2018; 2:1236-1245. [PMID: 30374468 PMCID: PMC6199893 DOI: 10.1210/js.2018-00187] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Accepted: 09/12/2018] [Indexed: 12/27/2022] Open
Abstract
Context The involvement of visceral fat in aldosterone secretion has not been reported in patients with primary aldosteronism (PA). Patients with PA are complicated by metabolic syndrome more frequently than those without PA. An excess of visceral fat has been hypothesized to cause an elevation of aldosterone secretion in patients with PA. Objectives To clarify the role of visceral fat in the pathophysiology of PA, we investigated the correlation between plasma aldosterone concentration (PAC) and visceral fat parameters in patients with PA. Design This retrospective observational study comprised 131 patients diagnosed with PA between April 2007 and April 2017 at Sapporo City General Hospital. We divided participants into two PA subtypes, aldosterone-producing adenoma (APA; n = 47) and idiopathic hyperaldosteronism (IHA, n = 84), utilizing adrenal venous sampling. We analyzed the correlations of PAC with visceral fat percentage (VF%), visceral fat area (VFA), and subcutaneous fat area, by evaluating computed tomography studies in each subtype group. Results Patients with IHA showed a positive correlation of PAC with VF% (r = 0.377, P < 0.001) and VFA (r = 0.443, P < 0.001). The correlation was not evident in patients with APA. Conclusions This study revealed a relationship between visceral adipose tissue and aldosterone production only in patients with IHA.
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Affiliation(s)
- Yui Shibayama
- Department of Diabetes and Endocrinology, Sapporo City General Hospital, Sapporo, Japan.,Department of Rheumatology, Endocrinology, and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Norio Wada
- Department of Diabetes and Endocrinology, Sapporo City General Hospital, Sapporo, Japan
| | - Shuhei Baba
- Department of Diabetes and Endocrinology, Sapporo City General Hospital, Sapporo, Japan
| | - Yukie Miyano
- Department of Diabetes and Endocrinology, Sapporo City General Hospital, Sapporo, Japan
| | - Shinji Obara
- Department of Diabetes and Endocrinology, Sapporo City General Hospital, Sapporo, Japan
| | - Ren Iwasaki
- Department of Radiation Technology, Sapporo City General Hospital, Sapporo, Japan
| | - Haruka Nakajima
- Department of Radiation Technology, Sapporo City General Hospital, Sapporo, Japan
| | - Hidetsugu Sakai
- Department of Radiation Technology, Sapporo City General Hospital, Sapporo, Japan
| | - Hiroaki Usubuchi
- Department of Diagnostic Radiology, Sapporo City General Hospital, Sapporo, Japan
| | - Satoshi Terae
- Department of Diagnostic Radiology, Sapporo City General Hospital, Sapporo, Japan
| | - Akinobu Nakamura
- Department of Rheumatology, Endocrinology, and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Tatsuya Atsumi
- Department of Rheumatology, Endocrinology, and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
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Nizar JM, Shepard BD, Vo VT, Bhalla V. Renal tubule insulin receptor modestly promotes elevated blood pressure and markedly stimulates glucose reabsorption. JCI Insight 2018; 3:95107. [PMID: 30135311 DOI: 10.1172/jci.insight.95107] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Accepted: 07/03/2018] [Indexed: 12/25/2022] Open
Abstract
Although the cause of hypertension among individuals with obesity and insulin resistance is unknown, increased plasma insulin, acting in the kidney to increase sodium reabsorption, has been proposed as a potential mechanism. Insulin may also stimulate glucose uptake, but the contributions of tubular insulin signaling to sodium or glucose transport in the setting of insulin resistance is unknown. To directly study the role of insulin signaling in the kidney, we generated inducible renal tubule-specific insulin receptor-KO mice and used high-fat feeding and mineralocorticoids to model obesity and insulin resistance. Insulin receptor deletion did not alter blood pressure or sodium excretion in mice on a high-fat diet alone, but it mildly attenuated the increase in blood pressure with mineralocorticoid supplementation. Under these conditions, KO mice developed profound glucosuria. Insulin receptor deletion significantly reduced SGLT2 expression and increased urinary glucose excretion and urine flow. These data demonstrate a direct role for insulin receptor-stimulated sodium and glucose transport and a functional interaction of insulin signaling with mineralocorticoids in vivo. These studies uncover a potential mechanistic link between preserved insulin sensitivity and renal glucose handling in obesity and insulin resistance.
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Affiliation(s)
- Jonathan M Nizar
- Division of Nephrology, Department of Medicine, Stanford University School of Medicine, Stanford, California, USA
| | - Blythe D Shepard
- Department of Human Science, Georgetown University, Washington, DC
| | - Vianna T Vo
- Division of Nephrology, Department of Medicine, Stanford University School of Medicine, Stanford, California, USA
| | - Vivek Bhalla
- Division of Nephrology, Department of Medicine, Stanford University School of Medicine, Stanford, California, USA
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Landry MJ, Khazaee E, Markowitz AK, Vandyousefi S, Ghaddar R, Pilles K, Asigbee FM, Gatto NM, Davis JN. Impact of food security on glycemic control among low-income primarily Hispanic/Latino children in Los Angeles, California: A cross-sectional study. JOURNAL OF HUNGER & ENVIRONMENTAL NUTRITION 2018; 14:709-724. [PMID: 31749895 DOI: 10.1080/19320248.2018.1491367] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Studies examining the impact of food insecurity on metabolic markers are limited, specifically in Hispanic youth. This study was a cross-sectional analysis of 218 3rd-5th grade students (83% Hispanic and 49% male). Anthropometrics, blood glucose, insulin, and lipids via fasting blood draw, dietary intake via Block screener, and a 5-item food security scale were collected. HOMA-Insulin Resistance was calculated. Multivariate analyses of covariance were used to examine differences in glucose and insulin indices, adiposity, metabolic and dietary intake variables between categories of food security. Food secure children had greater glycemic control and decreased insulin resistance compared to food insecure children.
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Affiliation(s)
- M J Landry
- Department of Nutritional Sciences, The University of Texas at Austin, Austin, TX
| | - E Khazaee
- Department of Nutritional Sciences, The University of Texas at Austin, Austin, TX
| | - A K Markowitz
- Department of Nutritional Sciences, The University of Texas at Austin, Austin, TX
| | - S Vandyousefi
- Department of Nutritional Sciences, The University of Texas at Austin, Austin, TX
| | - R Ghaddar
- Department of Nutritional Sciences, The University of Texas at Austin, Austin, TX
| | - K Pilles
- Department of Nutritional Sciences, The University of Texas at Austin, Austin, TX
| | - F M Asigbee
- Department of Nutritional Sciences, The University of Texas at Austin, Austin, TX
| | - N M Gatto
- School of Community and Global Health, Claremont Graduate University, Claremont, CA
| | - J N Davis
- Department of Nutritional Sciences, The University of Texas at Austin, Austin, TX
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The regulation of aldosterone secretion by leptin: implications in obesity-related cardiovascular disease. Curr Opin Nephrol Hypertens 2018; 27:63-69. [PMID: 29135585 DOI: 10.1097/mnh.0000000000000384] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
PURPOSE OF REVIEW Although it has been known for some time that increases in body mass enhance aldosterone secretion, particularly in women, the origin of this elevation in aldosterone production is not well defined. Adipocyte-derived factors have emerged as potential candidates to increase aldosterone production in obesity. RECENT FINDINGS Emerging evidence suggests the presence of a mechanistic link in which the adipocyte-derived hormone leptin stimulates aldosterone production in obesity, thereby creating a positive feedback loop for obesity-associated cardiovascular disease. In addition, recent reports give credence to the concept that this leptin-aldosterone stimulation pathway in obesity is an underlying mechanism for sex-discrepancies in obesity-associated cardiovascular disease. SUMMARY Leptin appears as a new direct regulator of adrenal aldosterone production and leptin-mediated aldosterone production is a novel candidate mechanism underlying obesity-associated hypertension, particularly in females.
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Candida Barisson Villares Fragoso M, Pontes Cavalcante I, Meneses Ferreira A, Marinho de Paula Mariani B, Ferini Pacicco Lotfi C. Genetics of primary macronodular adrenal hyperplasia. Presse Med 2018; 47:e139-e149. [PMID: 30075949 DOI: 10.1016/j.lpm.2018.07.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Recent advances in molecular genetics investigations of primary macronodular adrenal hyperplasia (PMAH) have been providing new insights for the research on this issue. The cAMP-dependent pathway is physiologically triggered by ACTH and its receptor, MC2-R, in adrenocortical cells. Different mechanisms of this cascade may be altered in some functioning adrenal cortical disorders. Activating somatic mutations of the GNAS gene (known as gsp oncogene) which encodes the stimulatory G protein alpha-subunit (Gsα) have been found in a small number of adrenocortical secreting adenomas and rarely in PMAH. Lately, ARMC5 was linked to the cyclic AMP signaling pathway, which could be implicated in all of mechanisms of cortisol-secreting by macronodules adrenal hyperplasia and the molecular defects in: G protein aberrant receptors; MC2R; GNAS; PRKAR1A; PDE11A; PDE8B. Around 50 % of patient's relatives with PMAH and 30 % of apparently sporadic hypercortisolism carried ARMC5 mutations. Therefore, PMAH is genetically determined more frequently than previously believed. This review summarizes the most important molecular mechanisms involved in PMAH.
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Affiliation(s)
| | - Isadora Pontes Cavalcante
- University of Sao Paulo, Adrenal Unit, Service of Endocrinology and Metabolism, 03178-200 Sao Paulo, Brazil; University of Sao Paulo, Institute of Biomedical Sciences, Department of Anatomy, 03178-200 Sao Paulo, Brazil
| | - Amanda Meneses Ferreira
- University of Sao Paulo, Adrenal Unit, Service of Endocrinology and Metabolism, 03178-200 Sao Paulo, Brazil
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Davel AP, Jaffe IZ, Tostes RC, Jaisser F, Belin de Chantemèle EJ. New roles of aldosterone and mineralocorticoid receptors in cardiovascular disease: translational and sex-specific effects. Am J Physiol Heart Circ Physiol 2018; 315:H989-H999. [PMID: 29957022 DOI: 10.1152/ajpheart.00073.2018] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Recent advances in the field of mineralocorticoid receptor (MR) and its ligand aldosterone expanded the role of this hormone and its receptor far beyond their initial function as a regulator of Na+ and K+ homeostasis in epithelial cells. The symposium "New Roles of Aldosterone and Mineralocorticoid Receptors in Cardiovascular Disease: Translational and Sex-Specific Effects" presented at the 38th World Congress of the International Union of Physiological Sciences (Rio de Janeiro, Brazil) highlighted the contribution of extrarenal MRs to cardiovascular disease. This symposium showcased how MRs expressed in endothelial, vascular smooth muscle, and immune cells plays a critical role in the development of vascular disease associated with aging, obesity, and chronic aldosterone stimulation and demonstrated that MR antagonism prevents the acute renal dysfunction and tubular injury induced by ischemia-reperfusion injury. It was also shown that the adipocyte-derived hormone leptin is a new direct regulator of aldosterone secretion and that leptin-mediated aldosterone production is a major contributor to obesity-associated hypertension in women. Sex differences in the role of aldosterone and of endothelial MR in the cardiovascular outcomes of obesity were highlighted. This review summarizes these important emerging concepts regarding the contribution of aldosterone and cell-specific MR to cardiovascular disease in male and female subjects and further supports sex-specific benefits of MR antagonist drugs to be tested in additional populations.
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Affiliation(s)
- Ana Paula Davel
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas , Campinas, Sâo Paulo , Brazil
| | - Iris Z Jaffe
- Molecular Cardiology Research Institute Tufts Medical Center , Boston, Massachusetts
| | - Rita C Tostes
- Departments of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo , Ribeirao Preto, Sâo Paulo , Brazil
| | - Frederic Jaisser
- Institut National de la Santé et de la Recherche Médicale, UMRS 1138, Centre de Recherche des Cordeliers, Pierre et Marie Curie University, Paris Descartes University , Paris , France
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Spence JD, Rayner BL. Hypertension in Blacks: Individualized Therapy Based on Renin/Aldosterone Phenotyping. Hypertension 2018; 72:263-269. [PMID: 29941519 DOI: 10.1161/hypertensionaha.118.11064] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- J David Spence
- From the Stroke Prevention and Atherosclerosis Research Centre, Robarts Research Institute, Western University, London, Canada (J.D.S.)
| | - Brian L Rayner
- Division of Nephrology, University of Cape Town, Groote Schuur Hospital, South Africa (B.L.R.)
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Role of Mineralocorticoid Receptors in Obstructive Sleep Apnea and Metabolic Syndrome. Curr Hypertens Rep 2018; 20:23. [DOI: 10.1007/s11906-018-0819-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Min SH, Kim SH, Jeong IK, Cho HC, Jeong JO, Lee JH, Kang HJ, Kim HS, Park KS, Lim S. Independent Association of Serum Aldosterone Level with Metabolic Syndrome and Insulin Resistance in Korean Adults. Korean Circ J 2018; 48:198-208. [PMID: 29557106 PMCID: PMC5861312 DOI: 10.4070/kcj.2017.0200] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2017] [Revised: 11/13/2017] [Accepted: 11/21/2017] [Indexed: 12/21/2022] Open
Abstract
Background and Objectives A relationship between renin-angiotensin system (RAS) components and metabolic syndrome (MetS) has been suggested, but not elucidated clearly. We examined the levels of RAS components in patients with and without MetS and their association with MetS in Korean population. Methods This study was approved by the review boards of the participating institutions and endorsed by the Korean Society of Lipid and Atherosclerosis. We screened 892 Koreans aged ≥20 years who underwent evaluation of hypertension, diabetes, or dyslipidemia at 6 tertiary hospitals in 2015–2016. After excluding patients who were taking diuretics, β-blockers, or RAS blockers, or suspected of primary aldosteronism, 829 individuals were enrolled. Anthropometric and biochemical parameters including aldosterone, plasma renin activity (PRA), and aldosterone-to-PRA ratio were evaluated. The homeostasis model assessment for insulin resistance (HOMA-IR) were used for evaluating insulin resistance. Results The mean age of the participants was 52.8±12.8 years, 56.3% were male, and their mean systolic and diastolic blood pressures were 133.9±20.0 and 81.2±14.6 mmHg, respectively. The levels of serum aldosterone, but not PRA, were significantly higher in subjects with MetS than in those without (20.6±33.6 vs. 15.3±12.2 ng/dL, p<0.05), and positively correlated with waist circumference, blood pressure, triglycerides, and glycated hemoglobin. The levels of aldosterone were independently associated with the number of MetS components and HOMA-IR after adjusting for conventional risk factors. Conclusions Serum aldosterone levels were higher in Korean adults with MetS than in those without. This finding suggests that increased aldosterone level might be closely associated with insulin resistance.
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Affiliation(s)
- Se Hee Min
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Se Hong Kim
- Department of Family Medicine, St. Vincent's Hospital, The Catholic University of Korea College of Medicine, Suwon, Korea
| | - In Kyung Jeong
- Department of Internal Medicine, Kyung Hee University Hospital at Gangdong, Kyung Hee University College of Medicine, Seoul, Korea
| | - Ho Chan Cho
- Department of Internal Medicine, Keimyung University Dongsan Medical Center, Daegu, Korea
| | - Jin Ok Jeong
- Department of Internal Medicine, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
| | - Ju Hee Lee
- Department of Internal Medicine, Chungbuk National University Hospital, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Hyun Jae Kang
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Hyo Soo Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Kyong Soo Park
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Soo Lim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea.
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Werth S, Müller-Fielitz H, Raasch W. Obesity-stimulated aldosterone release is not related to an S1P-dependent mechanism. J Endocrinol 2017; 235:251-265. [PMID: 28970286 DOI: 10.1530/joe-16-0550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 09/26/2017] [Indexed: 11/08/2022]
Abstract
Aldosterone has been identified as an important factor in obesity-associated hypertension. Here, we investigated whether sphingosine-1-phosphate (S1P), which has previously been linked to obesity, increases aldosterone release. S1P-induced aldosterone release was determined in NCI H295R cells in the presence of S1P receptor (S1PR) antagonists. In vivo release of S1P (100-300 µg/kgbw) was investigated in pithed, lean Sprague Dawley (SD) rats, diet-obese spontaneous hypertensive rats (SHRs), as well as in lean or obese Zucker rats. Aldosterone secretion was increased in NCI H295R cells by S1P, the selective S1PR1 agonist SEW2871 and the selective S1PR2 antagonist JTE013. Treatment with the S1PR1 antagonist W146 or fingolimod and the S1PR1/3 antagonist VPbib2319 decreased baseline and/or S1P-stimulated aldosterone release. Compared to saline-treated SD rats, plasma aldosterone increased by ~50 pg/mL after infusing S1P. Baseline levels of S1P and aldosterone were higher in obese than in lean SHRs. Adrenal S1PR expression did not differ between chow- or CD-fed rats that had the highest S1PR1 and lowest S1PR4 levels. S1P induced a short-lasting increase in plasma aldosterone in obese, but not in lean SHRs. However, 2-ANOVA did not demonstrate any difference between lean and obese rats. S1P-induced aldosterone release was also similar between obese and lean Zucker rats. We conclude that S1P is a local regulator of aldosterone production. S1PR1 agonism induces an increase in aldosterone secretion, while stimulating adrenal S1PR2 receptor suppresses aldosterone production. A significant role of S1P in influencing aldosterone secretion in states of obesity seems unlikely.
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Affiliation(s)
- Stephan Werth
- Institute of Experimental and Clinical Pharmacology and ToxicologyUniversity of Lübeck, Lübeck, Germany
| | - Helge Müller-Fielitz
- Institute of Experimental and Clinical Pharmacology and ToxicologyUniversity of Lübeck, Lübeck, Germany
- CBBM (Center of Brain, Behavior and Metabolism)Lübeck, Germany
| | - Walter Raasch
- Institute of Experimental and Clinical Pharmacology and ToxicologyUniversity of Lübeck, Lübeck, Germany
- CBBM (Center of Brain, Behavior and Metabolism)Lübeck, Germany
- DZHK (German Centre for Cardiovascular Research)partner site Hamburg/Kiel/Lübeck, Lübeck, Germany
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49
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Infante M, Armani A, Mammi C, Fabbri A, Caprio M. Impact of Adrenal Steroids on Regulation of Adipose Tissue. Compr Physiol 2017; 7:1425-1447. [PMID: 28915330 DOI: 10.1002/cphy.c160037] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Corticosteroids are secreted by the adrenal glands and control the functions of adipose tissue via the activation of mineralocorticoid receptor (MR) and glucocorticoid receptor (GR). In turn, adipocytes release a large variety of adipokines into the bloodstream, regulating the function of several organs and tissues, including the adrenal glands, hereby controlling corticosteroid production. In adipose tissue, the activation of the MR by glucocorticoids (GC) and aldosterone affects important processes such as adipocyte differentiation, oxidative stress, autophagic flux, adipokine expression as well as local production of GC through upregulation of the enzyme 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1). Notably, the proinflammatory responses induced by the MR are counteracted by activation of the GR, whose activity inhibits the expression of inflammatory adipokines. Both GR and MR are deeply involved in adipogenesis and adipose expansion; hence pharmacological blockade of these two receptors has proven effective against adipose tissue dysfunction in experimental models of obesity and metabolic syndrome (MetS), suggesting a potential use for MR and GR antagonists in these clinical settings. Importantly, obesity and Cushing's syndrome (CS) share metabolic similarities and are characterized by high levels of circulating corticosteroids, which in turn are able to deeply affect adipose tissue. In addition, pharmacological approaches aimed at reducing aldosterone and GC levels, by means of the inhibition of CYP11B2 (aldosterone synthase) or 11β-HSD1, represent alternative strategies to counter the detrimental effects of excessive levels of corticosteroids, which are often observed in obesity and, more general, in MetS. © 2017 American Physiological Society. Compr Physiol 7:1425-1447, 2017.
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Affiliation(s)
- Marco Infante
- Unit of Endocrinology and Metabolic Diseases, Department of Systems Medicine, CTO A. Alesini Hospital, ASL Roma 2, University Tor Vergata, Rome, Italy
| | - Andrea Armani
- Laboratory of Cardiovascular Endocrinology, IRCCS San Raffaele Pisana, Rome, Italy
| | - Caterina Mammi
- Laboratory of Cardiovascular Endocrinology, IRCCS San Raffaele Pisana, Rome, Italy
| | - Andrea Fabbri
- Unit of Endocrinology and Metabolic Diseases, Department of Systems Medicine, CTO A. Alesini Hospital, ASL Roma 2, University Tor Vergata, Rome, Italy
| | - Massimiliano Caprio
- Laboratory of Cardiovascular Endocrinology, IRCCS San Raffaele Pisana, Rome, Italy.,Department of Human Sciences and Promotion of the Quality of Life, San Raffaele Roma Open University, Rome, Italy
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Le Jemtel TH, Richardson W, Samson R, Jaiswal A, Oparil S. Pathophysiology and Potential Non-Pharmacologic Treatments of Obesity or Kidney Disease Associated Refractory Hypertension. Curr Hypertens Rep 2017; 19:18. [PMID: 28243928 DOI: 10.1007/s11906-017-0713-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
PURPOSE OF REVIEW The review assesses the role of non-pharmacologic therapy for obesity and chronic kidney disease (CKD) associated refractory hypertension (rf HTN). RECENT FINDINGS Hypertensive patients with markedly heightened sympathetic nervous system (SNS) activity are prone to develop refractory hypertension (rfHTN). Patients with obesity and chronic kidney disease (CKD)-associated HTN have particularly heightened SNS activity and are at high risk of rfHTN. The role of bariatric surgery is increasingly recognized in treatment of obesity. Current evidence advocates for a greater role of bariatric surgery in the management of obesity-associated HTN. In contrast, renal denervation does not appear have a role in the management of obesity or CKD-associated HTN. The role of baroreflex activation as adjunctive anti-hypertensive therapy remains to be defined.
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Affiliation(s)
- Thierry H Le Jemtel
- Division of Cardiology, Tulane University Medical Center, New Orleans, Louisiana, USA. .,Division of Cardiology, Tulane University School of Medicine, 1430 Tulane Ave SL-42, New Orleans, LA, 70112, USA.
| | - William Richardson
- Department of Surgery, Ochsner Health System, New Orleans, Louisiana, USA
| | - Rohan Samson
- Division of Cardiology, Tulane University Medical Center, New Orleans, Louisiana, USA
| | - Abhishek Jaiswal
- Division of Cardiology, Tulane University Medical Center, New Orleans, Louisiana, USA
| | - Suzanne Oparil
- Division of Cardiovascular Disease, University of Alabama, Birmingham, AL, USA
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