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J Hypertens. 2015 Aug;33(8):1499-508. doi: 10.1097/HJH.0000000000000645.

New developments in the pathogenesis of obesity-induced hypertension.

Author information

1
aHypertension-24 h ABPM ESH Center of Excellence, Papageorgiou Hospital, Aristotle University Thessaloniki, Greece bDepartment of Clinical Sciences, Lund University, University Hospital, Malmö, Sweden cDepartment of Health Science, University of Milano-Bicocca, Milano, Italy and Istituto di Ricerche a Carattere Scientifico Multimedica IRCCS, Sesto San Giovanni, Milan dIstituto Auxologico Italiano, Milano, Italy eUniversity of Valencia and INCLIVA Research Institute and CIBERobn, Madrid, Spain fExperimental and Clinical Research Center, Kooperation zwischen dem Max-Delbrück-Centrum für Molekulare Medizin und der Medizinischen Fakultät der Charité, Berlin gAbteilung für Nephrologie und Hypertensiologie, Universitätsklinikum Erlangen, Erlangen hInstitute of Clinical Pharmacology, Hannover Medical School, Hannover, Germany i1st Department of Pediatrics, Hippokration Hospital, Aristotle University of Thessaloniki, Greece jDepartment of Medicine, Debrecen University, Hungary kSchool of Medicine and Pharmacology Royal Perth Hospital Unit, University of Western Australia, Baker IDI Heart and Diabetes Institute, Melbourne, Australia.

Abstract

Obesity is a disorder that develops from the interaction between genotype and environment involving social, behavioral, cultural, and physiological factors. Obesity increases the risk for type 2 diabetes mellitus, hypertension, cardiovascular disease, cancer, musculoskeletal disorders, chronic kidney and pulmonary disease. Although obesity is clearly associated with an increased prevalence of hypertension, many obese individuals may not develop hypertension. Protecting factors may exist and it is important to understand why obesity is not always related to hypertension. The aim of this review is to highlight the knowledge gap for the association between obesity, hypertension, and potential genetic and racial differences or environmental factors that may protect obese patients against the development of hypertension and other co-morbidities. Specific mutations in the leptin and the melaninocortin receptor genes in animal models of obesity without hypertension, the actions of α-melanocyte stimulating hormone, and SNS activity in obesity-related hypertension may promote recognition of protective and promoting factors for hypertension in obesity. Furthermore, gene-environment interactions may have the potential to modify gene expression and epigenetic mechanisms could also contribute to the heritability of obesity-induced hypertension. Finally, differences in nutrition, gut microbiota, exposure to sun light and exercise may play an important role in the presence or absence of hypertension in obesity.

PMID:
26103132
DOI:
10.1097/HJH.0000000000000645
[Indexed for MEDLINE]

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