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Torresan F, Rossi FB, Zanin S, Caputo I, Caroccia B, Iacobone M, Rossi GP. Water and Electrolyte Content in Salt-Dependent HYpertension in the SKIn (WHYSKI): Effect of Surgical Cure of Primary Aldosteronism. High Blood Press Cardiovasc Prev 2024; 31:15-21. [PMID: 38123759 PMCID: PMC10925570 DOI: 10.1007/s40292-023-00614-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 11/21/2023] [Indexed: 12/23/2023] Open
Abstract
INTRODUCTION: This study will test the hypothesis that primary aldosteronism (PA) involves alterations in Na+, K+, and water content in the skin that are corrected by adrenalectomy. AIM AND METHODS In skin biopsies, we will measure the content of Na+, K+, water, by physical-chemical methods and the osmotic-stress-responsive transcription factor Tonicity-responsive Enhancer Binding Protein (TonEBP, NFAT5) mRNA copy number by droplet digital PCR, in sex-balanced cohorts of 18 -75-year-old consecutive consenting patients with unilateral and bilateral PA, primary (essential) hypertension, and normotension. Before surgery, the patients with unilateral PA will receive the mineralocorticoid receptor antagonist (MRA) canrenone at doses that correct hypokalemia and high blood pressure values. They will be reassessed in an identical way one month after surgical cure, while off MRA. PA patients not selected for adrenalectomy will similarly be assessed at diagnosis and follow-up while on stable MRA treatment. Since a pilot study showed a direct correlation of dry weight (DW) with skin electrolytes and water content and significant differences of biopsy DW between surgery and follow-up, meaningful comparison of the skin cations and water content and TonEBP mRNA copy number, between specimen obtained at different time points, will require DW- and total mRNA-adjustment, respectively. CONCLUSION This study will provide novel information on the skin Na+, K+ and water content in PA, the paradigm of salt-dependent hypertension, and novel knowledge on the effect of surgical cure of hyperaldosteronism. The TonEBP-mediated regulation of Na+, K+ and water content in the skin will also be unveiled. TRAIL REGISTRY Trial Registration number: NCT06090617. Date of Registration: 2023-10-19.
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Affiliation(s)
- Francesca Torresan
- Endocrine Surgery Unit, Department of Surgery, Oncology, and Gastroenterology, University Hospital, University of Padua, Via Giustiniani, 2, 35128, Padua, Italy
| | - Federico Bernardo Rossi
- Internal and Emergency Unit and Specialized Hypertension Centre, Department of Medicine-DIMED, University Hospital, University of Padua, Via Giustiniani, 2, 35128, Padua, Italy
| | - Sofia Zanin
- Laboratory for Genetics of Mithocondrial Disorders, Imagine Institute, Université Paris Cité, Bd du Montparnasse, 24, 75015, Paris, France
| | - Ilaria Caputo
- Internal and Emergency Unit and Specialized Hypertension Centre, Department of Medicine-DIMED, University Hospital, University of Padua, Via Giustiniani, 2, 35128, Padua, Italy
| | - Brasilina Caroccia
- Internal and Emergency Unit and Specialized Hypertension Centre, Department of Medicine-DIMED, University Hospital, University of Padua, Via Giustiniani, 2, 35128, Padua, Italy
| | - Maurizio Iacobone
- Endocrine Surgery Unit, Department of Surgery, Oncology, and Gastroenterology, University Hospital, University of Padua, Via Giustiniani, 2, 35128, Padua, Italy
| | - Gian Paolo Rossi
- Internal and Emergency Unit and Specialized Hypertension Centre, Department of Medicine-DIMED, University Hospital, University of Padua, Via Giustiniani, 2, 35128, Padua, Italy.
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Caroccia B, Caputo I, Rossi FB, Piazza M, Pallafacchina G, Paolo Rossi G. Endocrine disruptors and arterial hypertension: A developing story. Steroids 2023; 199:109292. [PMID: 37549779 DOI: 10.1016/j.steroids.2023.109292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 08/02/2023] [Accepted: 08/04/2023] [Indexed: 08/09/2023]
Abstract
Endocrine disrupting Chemicals (EDCs) are substances that interfere with hormones by several mechanisms including receptor activation or antagonism, changes in gene and protein expression, modification of signal transduction, and/or epigenetic modifications in hormone-producing cells. A survey conducted by the European Union in a Northern Italian region led to the discovery of a large environmental contamination of drinking water by perfluoroalkyl substances (PFAS). As the exposed population showed a high prevalence of arterial hypertension and cardiovascular disease, we decided to investigate if PFAS could enhance the biosynthesis of aldosterone. To this aim, we exposed human adrenocortical carcinoma HAC15 cells to PFAS and found that PFAS markedly increased aldosterone synthase (CYP11B2) gene expression and aldosterone secretion. Moreover, we found that they promoted reactive oxygen species (ROS) production in mitochondria, the organelles where aldosterone biosynthesis takes place. PFAS also enhanced the effects of the aldosterone secretagogue angiotensin II (Ang II) on CYP11B2 gene expression and aldosterone secretion. We also found that not only PFAS but also polychlorinated biphenyl 126 (PCB126), a chemical compound belonging to a different category of EDCs, can increase CYP11B2 gene expression and aldosterone secretion in adrenocortical cells. This novel information needs to be considered in the context of a widespread exposure to the most common EDC, that is excess Na+ intake, whose detrimental effects on human health occur in the setting of aldosterone production exceeding the physiological needs and lead to high blood pressure, congestion, and cardiovascular and renal damage.
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Affiliation(s)
- Brasilina Caroccia
- Internal Emergency Medicine Unit, Department of Medicine-DIMED University of Padua, Specialized Center for Blood Pressure Disorders-Regione Veneto, 35128 Padua, Italy
| | - Ilaria Caputo
- Internal Emergency Medicine Unit, Department of Medicine-DIMED University of Padua, Specialized Center for Blood Pressure Disorders-Regione Veneto, 35128 Padua, Italy
| | - Federico Bernardo Rossi
- Internal Emergency Medicine Unit, Department of Medicine-DIMED University of Padua, Specialized Center for Blood Pressure Disorders-Regione Veneto, 35128 Padua, Italy
| | - Maria Piazza
- Internal Emergency Medicine Unit, Department of Medicine-DIMED University of Padua, Specialized Center for Blood Pressure Disorders-Regione Veneto, 35128 Padua, Italy
| | - Giorgia Pallafacchina
- Department of Biomedical Sciences-DSB, University of Padua, 35131 Padua, Italy; Italian National Research Council (CNR), Neuroscience Institute, 35131 Padua, Italy
| | - Gian Paolo Rossi
- Internal Emergency Medicine Unit, Department of Medicine-DIMED University of Padua, Specialized Center for Blood Pressure Disorders-Regione Veneto, 35128 Padua, Italy.
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