Cited by 520Chronic Kidney Disease and DiabetesBlood Pressure and Hypertension StudiesRenal and Vascular Pathologies

Obesity, hypertension, and chronic kidney disease

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Hall, John, Juncos, Luis, Wang, Zhen, Hall, Michael, do Carmo, Jussara, da Silva, Alexandre·2014·International Journal of Nephrology and Renovascular Disease

Abstract

Obesity is a major risk factor for essential hypertension, diabetes, and other comorbid conditions that contribute to development of chronic kidney disease. Obesity raises blood pressure by increasing renal tubular sodium reabsorption, impairing pressure natriuresis, and causing volume expansion via activation of the sympathetic nervous system and renin-angiotensin-aldosterone system and by physical compression of the kidneys, especially when there is increased visceral adiposity. Other factors such as inflammation, oxidative stress, and lipotoxicity may also contribute to obesity-mediated hypertension and renal dysfunction. Initially, obesity causes renal vasodilation and glomerular hyperfiltration, which act as compensatory mechanisms to maintain sodium balance despite increased tubular reabsorption. However, these compensations, along with increased arterial pressure and metabolic abnormalities, may ultimately lead to glomerular injury and initiate a slowly developing vicious cycle that exacerbates hypertension and worsens renal injury. Body weight reduction, via caloric restriction and increased physical activity, is an important first step for management of obesity, hypertension, and chronic kidney disease. However, this strategy may not be effective in producing long-term weight loss or in preventing cardiorenal and metabolic consequences in many obese patients. The majority of obese patients require medical therapy for obesity-associated hypertension, metabolic disorders, and renal disease, and morbidly obese patients may require surgical interventions to produce sustained weight loss.

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  • Excess perirenal fat encapsulating the kidneys and excess renal sinus fat may squeeze the kidneys and increase intrarenal pressures.

    “excess PRF encapsulating the kidneys and excess RSF may squeeze the kidneys and increase intrarenal pressures10,35.”
  • In the early phases of obesity, blood pressure may not be salt-sensitive; therefore, hypertension may not be greatly exacerbated by high salt intake.

    “In the early phases of obesity, BP may not be salt-sensitive; therefore, hypertension may not be greatly exacerbated by high salt intake10.”
  • These changes tend to increase fractional NaCl reabsorption in the loop of Henle and decrease delivery of NaCl to the macula densa, causing feedback-mediated reductions in afferent arteriolar resistance, increases in renal blood flow and glomerular filtration rate and stimulation of renin secretion from juxtaglomerular cells.

    “These changes tend to increase fractional NaCl reabsorption in the loop of Henle and decrease delivery of NaCl to the macula densa, causing feedback-mediated reductions in afferent arteriolar resistance, increases in RBF and GFR and stimulation of renin secretion from juxtaglomerular cells10.”
  • Renal vasodilation, increases in renal blood flow and glomerular hyperfiltration occur early after weight gain but are later followed by declines in renal blood flow and glomerular filtration rate as a result of kidney injury and gradual loss of nephrons.

    “renal vasodilation, increases in renal blood flow (RBF) and glomerular hyperfiltration occur early after weight gain but are later followed by declines in RBF and glomerular filtration rate (GFR) as a result of kidney injury and gradual loss of nephrons10.”
  • Physical compression of the kidneys by fat in and around the kidneys is a mediator of abnormal kidney function and increased blood pressure during development of obesity hypertension.

    “The mediators of abnormal kidney function and increased blood pressure during development of obesity hypertension include 1) physical compression of the kidneys by fat in and around the kidneys”

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Authors
Hall, J., Juncos, L., Wang, Z., Hall, M., do Carmo, J., & da Silva, A.
Affiliations
University of Mississippi Medical Center (US)
Corresponding author
Hall, Michael
Venue
International Journal of Nephrology and Renovascular Disease
Published
2014-02
Volume
7
Pages
75
ISSN
1178-7058 (ISSN-L)
OpenAlex
W2004830232
Cited by
520
References
100
Citations by year
2026: 29 · 2025: 41 · 2024: 36 · 2023: 41 · 2022: 48 · 2021: 55 · 2020: 54 · 2019: 42 · 2018: 53 · 2017: 47 · 2016: 28 · 2015: 29 · 2014: 15 · 2012: 1
FWCI
5.75
Type
journal article
Language
en
Open access
Locations
  • International Journal of Nephrology and Renovascular Disease (publishedVersion, cc-by-nc)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Dove Medical Press (Taylor and Francis Group) (submittedVersion, cc-by-nc)
Funders
  • National Heart, Lung, and Blood Institute (51971, P01-HL-51971, P01HL051971, GM104357)
  • National Institute of General Medical Sciences (GM104357, P20GM104357)
Topics
  • Health Sciences › Medicine › Nephrology › Chronic Kidney Disease and Diabetes
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Blood Pressure and Hypertension Studies
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Renal and Vascular Pathologies
Keywords
obesity, essential hypertension, chronic kidney disease, renal sodium reabsorption, pressure natriuresis, visceral fat, renin-angiotensin-aldosterone system, sympathetic nervous system, glomerular hyperfiltration, renal vasodilation, oxidative stress, lipotoxicity, inflammation, weight loss, bariatric surgery

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