Cited by 645Pancreatic function and diabetesRegulation of Appetite and ObesityMetabolism, Diabetes, and Cancer

Hypothalamic KATP channels control hepatic glucose production

Pocai, Alessandro, Lam, Tony K. T., Gutierrez-Juarez, Roger, Obici, Silvana, Schwartz, Gary J., Bryan, Joseph, Aguilar-Bryan, Lydia, Rossetti, Luciano·2005·Nature

Abstract

Obesity is the driving force behind the worldwide increase in the prevalence of type 2 diabetes mellitus. Hyperglycaemia is a hallmark of diabetes and is largely due to increased hepatic gluconeogenesis. The medial hypothalamus is a major integrator of nutritional and hormonal signals, which play pivotal roles not only in the regulation of energy balance but also in the modulation of liver glucose output. Bidirectional changes in hypothalamic insulin signalling therefore result in parallel changes in both energy balance and glucose metabolism. Here we show that activation of ATP-sensitive potassium (K(ATP)) channels in the mediobasal hypothalamus is sufficient to lower blood glucose levels through inhibition of hepatic gluconeogenesis. Finally, the infusion of a K(ATP) blocker within the mediobasal hypothalamus, or the surgical resection of the hepatic branch of the vagus nerve, negates the effects of central insulin and halves the effects of systemic insulin on hepatic glucose production. Consistent with these results, mice lacking the SUR1 subunit of the K(ATP) channel are resistant to the inhibitory action of insulin on gluconeogenesis. These findings suggest that activation of hypothalamic K(ATP) channels normally restrains hepatic gluconeogenesis, and that any alteration within this central nervous system/liver circuit can contribute to diabetic hyperglycaemia.

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Crossref · 10.1038/nature03439

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  • Effects of central insulin are blocked by PI3K inhibitor and require activation of KATP channels.

    “these effects of insulin are blocked by infusion of the PI3K inhibitor and also appear to require activation of KATP channels (135, 145).”
  • Accumulating evidence suggests that leptin, insulin, and nutrient-related signals in the CNS improve hepatic insulin sensitivity.

    “Although accumulating evidence suggests that leptin (10 -13), insulin (14,15), and nutrient-related signals (16 -18) in the CNS improve hepatic insulin sensitivity”
  • Insulin action in the brain of nondiabetic animals lowers ambient glycemia by increasing hepatic insulin sensitivity.

    “Several lines of evidence suggest that like leptin, insulin action in the brain of nondiabetic animals lowers ambient glycemia by increasing hepatic insulin sensitivity (14,15).”
  • Central nervous insulin signalling contributes to peripheral energy and glucose homeostasis, growth and neuronal plasticity.

    “central nervous insulin signalling contributes to functions as diverse as peripheral energy and glucose homeostasis, 6,7 growth 8 and neuronal plasticity.9”

    From Intranasal insulin (2021) · cites this paper as [7]

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Authors
Pocai, A., Lam, T. K. T., Gutierrez-Juarez, R., Obici, S., Schwartz, G. J., Bryan, J., Aguilar-Bryan, L., & Rossetti, L.
Affiliations
  • Albert Einstein College of Medicine (US)
  • Baylor College of Medicine (US)
Corresponding author
Rossetti, Luciano
Venue
Nature
Published
2005-04
Volume
434
Issue
7036
Pages
1026-1031
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2089541211
Cited by
645
References
30
Citations by year
2026: 9 · 2025: 10 · 2024: 22 · 2023: 16 · 2022: 20 · 2021: 23 · 2020: 21 · 2019: 32 · 2018: 23 · 2017: 34 · 2016: 30 · 2015: 31 · 2014: 35 · 2013: 33 · 2012: 41
FWCI
41.86
Type
journal article
Language
en
Open access
closed
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
Skirball Foundation
Topics
  • Health Sciences › Medicine › Surgery › Pancreatic function and diabetes
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
Keywords
hepatic gluconeogenesis, hepatic glucose production, mediobasal hypothalamus, insulin signaling, vagus nerve, hyperglycemia, type 2 diabetes, energy balance, axon competition, neural circuit development
MeSH terms
Adenosine Triphosphate, Animals, Diabetes Mellitus, Type 2, Gluconeogenesis, Glucose, Hyperinsulinism, Hypothalamus, Insulin, Liver, Male, Receptors, Drug, RNA, Messenger, Vagus Nerve, Potassium Channels, Rats, Sprague-Dawley, ATP-Binding Cassette Transporters, Potassium Channels, Inwardly Rectifying, ATP-Binding Cassette, Sub-Family C Proteins, Mice, Rats, Sulfonylurea Receptors

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