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Cited by 304Regulation of Appetite and ObesityPancreatic function and diabetesAdipokines, Inflammation, and Metabolic Diseases

The DOI matches its Crossref record; 38 of the 38 references it cites were found in a registry or an index.

Short Term Effects of Leptin on Hepatic Gluconeogenesis and in Vivo Insulin Action

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Rossetti, Luciano, Massillon, Duna, Barzilai, Nir, Vuguin, Patricia, Chen, Wei, Hawkins, Meredith, Wu, Jie, Wang, Jali·1997·Journal of Biological Chemistry
DOI 10.1074/jbc.272.44.27758
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Abstract

Long term administration of leptin decreases caloric intake and fat mass and improves glucose tolerance. Here we examine whether leptin acutely regulates peripheral and hepatic insulin action. Recombinant mouse leptin (0.3 mg/kg.h, Leptin +) or vehicle (Leptin -) were administered for 6 h to 4-month-old rats (n = 20), and insulin (3 milliunits/kg.min) clamp studies were performed. During physiologic hyperinsulinemia (plasma insulin approximately 65 microunits/ml), the rates of whole body glucose uptake, glycolysis, and glycogen synthesis and the rates of 2-deoxyglucose uptake in individual tissues were similar in Leptin - and Leptin +. Post-absorptive hepatic glucose production (HGP) was similar in the two groups. However, leptin enhanced insulin's inhibition of HGP (4.1 +/- 0.7 and 6.2 +/- 0.7 mg/kg.min; p < 0.05). The decreased HGP in the Leptin + group was due to a marked suppression of hepatic glycogenolysis (0.7 +/- 0.1 versus 4.1 +/- 0.6 mg/kg.min, in Leptin + versus Leptin -, respectively; p < 0.001), whereas the % contribution of gluconeogenesis to HGP was markedly increased (82 +/- 3% versus 36 +/- 4% in Leptin + and Leptin -, respectively; p < 0.001). At the end of the 6-h leptin infusion, the hepatic abundance of glucokinase mRNA was decreased, whereas that of phosphoenolpyruvate carboxykinase mRNA was increased compared with Leptin -. We conclude that an acute increase in plasma leptin 1) enhances insulin's ability to inhibit HGP, 2) does not affect peripheral insulin action, and 3) induces a redistribution of intrahepatic glucose fluxes and changes in the gene expression of hepatic enzymes that closely resemble those of fasting.

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  1. Kissebah, 1991, Int. J. Obes., 15, 109
  2. Kraegen, 1985, Am. J. Physiol., 248, E353

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Metadata

Authors
Rossetti, L., Massillon, D., Barzilai, N., Vuguin, P., Chen, W., Hawkins, M., Wu, J., & Wang, J.
Affiliations
Albert Einstein College of Medicine (US)
Corresponding author
Rossetti, Luciano
ORCID
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
1997-10
Volume
272
Issue
44
Pages
27758-27763
ISSN
0021-9258 (ISSN-L)
DOI
10.1074/jbc.272.44.27758
OpenAlex
W2085529816
Cited by
304
References
38
Citations by year
2025: 1 · 2024: 3 · 2023: 3 · 2022: 2 · 2021: 4 · 2020: 7 · 2019: 4 · 2018: 8 · 2017: 7 · 2016: 10 · 2015: 8 · 2014: 7 · 2013: 11 · 2012: 15
FWCI
6.00
Type
journal article
Language
en
Open access
Licence
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • Amgen
  • National Institutes of Health
  • Albert Einstein College of Medicine, Yeshiva University
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK-48321, DK-45024)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Pancreatic function and diabetes
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Adipokines, Inflammation, and Metabolic Diseases
Keywords
leptin, hepatic gluconeogenesis, insulin action, hepatic glucose production, hepatic glycogenolysis, insulin sensitivity, glucokinase, phosphoenolpyruvate carboxykinase, hepatic gene expression, glucose metabolism, fasting
MeSH terms
Animals, Deoxyglucose, Glucokinase, Gluconeogenesis, Hyperinsulinism, Insulin, Liver Glycogen, Male, Proteins, RNA, Messenger, Rats, Sprague-Dawley, Patch-Clamp Techniques, Phosphoenolpyruvate Carboxykinase (ATP), Leptin, Rats

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