Cited by 490Regulation of Appetite and ObesityBlood Pressure and Hypertension StudiesHypothalamic control of reproductive hormones

Modulation of Blood Pressure by Central Melanocortinergic Pathways

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Greenfield, Jerry R., Miller, Jeffrey W., Keogh, Julia M., Henning, Elana, Satterwhite, Julie H., Cameron, Gregory S., Astruc, Beatrice, Mayer, John P. +5 more·2009·New England Journal of Medicine

Abstract

BACKGROUND: Weight gain and weight loss are associated with changes in blood pressure through unknown mechanisms. Central melanocortinergic signaling is implicated in the control of energy balance and blood pressure in rodents, but there is no information regarding such an association with blood pressure in humans. METHODS: We assessed blood pressure, heart rate, and urinary catecholamines in overweight or obese subjects with a loss-of-function mutation in MC4R, the gene encoding the melanocortin 4 receptor, and in equally overweight control subjects. We also examined the effects of an MC4R agonist administered for 7 days in 28 overweight or obese volunteers. RESULTS: The prevalence of hypertension was markedly lower in the MC4R-deficient subjects than in the control subjects (24% vs. 53%, P=0.009). After the exclusion of subjects taking antihypertensive medications, blood-pressure levels were significantly lower in MC4R-deficient subjects than in control subjects, with mean (+/-SE) systolic blood pressures of 123+/-14 mm Hg and 131+/-12 mm Hg, respectively (P=0.02), and mean diastolic blood pressures of 73+/-10 mm Hg and 79+/-7 mm Hg, respectively (P=0.03). As compared with control subjects, MC4R-deficient subjects had a lower increase in heart rate on waking (P=0.007), a lower heart rate during euglycemic hyperinsulinemia (P<0.001), and lower 24-hour urinary norepinephrine excretion (P=0.04). The maximum tolerated daily dose of 1.0 mg of the MC4R agonist led to significant increases of 9.3+/-1.9 mm Hg in systolic blood pressure and of 6.6+/-1.1 mm Hg in diastolic blood pressure (P<0.001 for both comparisons) at 24 hours, as compared with placebo. Differences in blood pressure were not explained by changes in insulin levels; there were no significant adverse events. CONCLUSIONS: Results of our genetic and pharmacologic studies implicate melanocortinergic signaling in the control of human blood pressure through an insulin-independent mechanism.

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Crossref · 10.1056/nejmoa0803085

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  • Treatment with synthetic MC4R agonists raises blood pressure and heart rate despite causing weight loss in people with obesity.

    “Similar to their effects in rodents, treatment with synthetic MC4R agonists raises BP and HR despite causing weight loss in people with obesity; these effects limit the use of MC4R agonists in the treatment of obesity199.”
  • These effects limit the use of MC4R agonists in the treatment of obesity.

    “Similar to their effects in rodents, treatment with synthetic MC4R agonists raises BP and HR despite causing weight loss in people with obesity; these effects limit the use of MC4R agonists in the treatment of obesity199.”
  • Compared with control individuals with obesity and intact MC4R signalling, individuals with MC4R deficiency had a lower prevalence of hypertension and reduced noradrenaline excretion despite severe obesity, insulin resistance and dyslipidemia.

    “Compared with control individuals with obesity and intact MC4R signalling, individuals with MC4R deficiency had a lower prevalence of hypertension and reduced noradrenaline excretion despite severe obesity, insulin resistance and dyslipidemia199,200.”
  • Hypertension prevalence is lower in MC4R deficient humans compared to control subjects, despite severe obesity and associated metabolic disorders.

    “Hypertension prevalence is lower in MC4R deficient humans compared to control subjects, despite severe obesity and associated metabolic disorders125,126.”
  • The cardiovascular effects of LY2112688 were sustained for the entire 7 days of infusion.

    “Moreover, the cardiovascular effects were sustained for the entire 7 days of LY2112688 infusion.”

    From Role of the brain melanocortins in blood pressure regulation (2017) · cites this paper as [77]

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Authors
Greenfield, J. R., Miller, J. W., Keogh, J. M., Henning, E., Satterwhite, J. H., Cameron, G. S., Astruc, B., Mayer, J. P., Brage, S., See, T. C., Lomas, D. J., O'Rahilly, S., & Farooqi, I. S.
Affiliations
  • University of Cambridge (GB)
  • Eli Lilly (United States) (US)
  • Biotrial (France) (FR)
  • Addenbrooke's Hospital (GB)
Venue
New England Journal of Medicine
Published
2009-01
Volume
360
Issue
1
Pages
44-52
ISSN
  • 0028-4793 (ISSN-L)
  • 1533-4406
OpenAlex
W3144014357
Cited by
477
References
29
Citations by year
2026: 12 · 2025: 21 · 2024: 26 · 2023: 9 · 2022: 29 · 2021: 36 · 2020: 26 · 2019: 21 · 2018: 19 · 2017: 30 · 2016: 33 · 2015: 32 · 2014: 34 · 2013: 38 · 2012: 22
FWCI
13.18
Type
journal article
Language
en
Open access
Locations
  • New England Journal of Medicine (publishedVersion)
  • PubMed (publishedVersion)
Funders
Wellcome Trust (082390)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Blood Pressure and Hypertension Studies
  • Health Sciences › Medicine › Reproductive Medicine › Hypothalamic control of reproductive hormones
Keywords
blood pressure regulation, melanocortin signaling, melanocortin-4 receptor, MC4R agonist, obesity, overweight, hypertension, heart rate, urinary catecholamines, norepinephrine, energy balance
MeSH terms
Adult, Autonomic Nervous System, Blood Pressure, Catecholamines, Dose-Response Relationship, Drug, Double-Blind Method, Female, Genotype, Heart Rate, Heterozygote, Humans, Hypertension, Male, Mutation, Obesity, Sleep, Signal Transduction, Prevalence, Cross-Over Studies, Receptor, Melanocortin, Type 4, Overweight

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