Go to The Journal of Clinical Investigation
  • About
  • Editors
  • Consulting Editors
  • For authors
  • Publication ethics
  • Transfers
  • Advertising
  • Job board
  • Contact
  • Current issue
  • Past issues
  • By specialty
    • COVID-19
    • Cardiology
    • Immunology
    • Metabolism
    • Nephrology
    • Oncology
    • Pulmonology
    • All ...
  • Videos
  • Collections
    • Resource and Technical Advances
    • Clinical Medicine
    • Reviews
    • Editorials
    • Perspectives
    • Top read articles
  • JCI This Month
    • Current issue
    • Past issues

  • Current issue
  • Past issues
  • Specialties
  • In-Press Preview
  • Editorials
  • Viewpoint
  • Top read articles
  • About
  • Editors
  • Consulting Editors
  • For authors
  • Publication ethics
  • Transfers
  • Advertising
  • Job board
  • Contact
Targeting insulin to the liver corrects defects in glucose metabolism caused by peripheral insulin delivery
Dale S. Edgerton, … , Erica Nishimura, Alan D. Cherrington
Dale S. Edgerton, … , Erica Nishimura, Alan D. Cherrington
Published February 26, 2019
Citation Information: JCI Insight. 2019;4(7):e126974. https://doi.org/10.1172/jci.insight.126974.
View: Text | PDF
Research Article Endocrinology Metabolism

Targeting insulin to the liver corrects defects in glucose metabolism caused by peripheral insulin delivery

  • Text
  • PDF
Abstract

Peripheral hyperinsulinemia resulting from subcutaneous insulin injection is associated with metabolic defects that include abnormal glucose metabolism. The first aim of this study was to quantify the impairments in liver and muscle glucose metabolism that occur when insulin is delivered via a peripheral vein compared to when it is given through its endogenous secretory route (the hepatic portal vein) in overnight-fasted conscious dogs. The second aim was to determine if peripheral delivery of a hepato-preferential insulin analog could restore the physiologic response to insulin that occurs under meal-feeding conditions. This study is the first to our knowledge to show that hepatic glucose uptake correlates with insulin’s direct effects on the liver under hyperinsulinemic-hyperglycemic conditions. In addition, glucose uptake was equally divided between the liver and muscle when insulin was infused into the portal vein, but when it was delivered into a peripheral vein the percentage of glucose taken up by muscle was 4-fold greater than that going to the liver, with liver glucose uptake being less than half of normal. These defects could not be corrected by adjusting the dose of peripheral insulin. On the other hand, hepatic and nonhepatic glucose metabolism could be fully normalized by a hepato-preferential insulin analog.

Authors

Dale S. Edgerton, Melanie Scott, Ben Farmer, Phillip E. Williams, Peter Madsen, Thomas Kjeldsen, Christian L. Brand, Christian Fledelius, Erica Nishimura, Alan D. Cherrington

×

Figure 3

Glucagon levels.

Options: View larger image (or click on image) Download as PowerPoint
Glucagon levels.
Arterial (A) and hepatic sinusoidal plasma (B) glucagon...
Arterial (A) and hepatic sinusoidal plasma (B) glucagon levels during the basal (–30 to 0 minutes) and experimental periods (0–180 minutes) in overnight-fasted conscious dogs in the portal vein insulin (PoHI), peripheral vein insulin (PeHI), peripheral vein insulin half dose (PeHI-half), and peripheral vein insulin-327 (Pe327) infusion groups (mean ± SEM; n = 5, 5, 5, and 7, respectively).

Copyright © 2023 American Society for Clinical Investigation
ISSN 2379-3708

Sign up for email alerts