Skip to main content

Does ghrelin explain accelerated gastric emptying in the early stages of diabetes mellitus?

Publication ,  Journal Article
Ariga, H; Imai, K; Chen, C; Mantyh, C; Pappas, TN; Takahashi, T
Published in: Am J Physiol Regul Integr Comp Physiol
June 2008

During the early stages of diabetes, gastric emptying is often accelerated, rather than delayed. The mechanism of accelerated gastric emptying in diabetes has not been fully studied. A recent study showed that plasma ghrelin levels were elevated in diabetes. As postprandial antropyloric coordination plays an important role in mediating solid gastric emptying, we hypothesize that the elevated plasma ghrelin levels increase postprandial antropyloric coordination to accelerate emptying in the early stages of diabetes. To test this hypothesis, rats were made diabetic by streptozotocin (STZ; 50 mg/kg) injection, and, 2 wk later, pre- and postprandial plasma ghrelin levels, antropyloric coordination, and solid gastric emptying were determined. In control rats, plasma ghrelin levels were immediately reduced after feeding. In contrast, plasma ghrelin levels remained within the fasted levels in STZ rats after feeding. In STZ rats, gastric emptying was significantly accelerated (77.4 +/- 3.2%, n = 6), compared with that of control rats (58.8 +/- 2.5%, n = 6, P < 0.05). Treatments with anti-ghrelin antibodies attenuated accelerated gastric emptying in STZ rats (50.1 +/- 3.5%, n = 6, P < 0.05), while having little effect in vehicle control rats. The incidence of postprandial antropyloric coordination was significantly increased in STZ rats, compared with that of control rats (P < 0.05). Treatments with anti-ghrelin antibodies suppressed this enhanced antropyloric coordination in STZ rats. Our study suggests that elevated endogenous ghrelin enhances antropyloric coordination, which accelerates gastric emptying in the early stages of diabetes.

Duke Scholars

Published In

Am J Physiol Regul Integr Comp Physiol

DOI

ISSN

0363-6119

Publication Date

June 2008

Volume

294

Issue

6

Start / End Page

R1807 / R1812

Location

United States

Related Subject Headings

  • Streptozocin
  • Rats, Sprague-Dawley
  • Rats
  • Pyloric Antrum
  • Postprandial Period
  • Physiology
  • Male
  • Insulin
  • Ghrelin
  • Gastric Emptying
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Ariga, H., Imai, K., Chen, C., Mantyh, C., Pappas, T. N., & Takahashi, T. (2008). Does ghrelin explain accelerated gastric emptying in the early stages of diabetes mellitus? Am J Physiol Regul Integr Comp Physiol, 294(6), R1807–R1812. https://doi.org/10.1152/ajpregu.00785.2007
Ariga, Hajime, Kenji Imai, Cindy Chen, Christopher Mantyh, Theodore N. Pappas, and Toku Takahashi. “Does ghrelin explain accelerated gastric emptying in the early stages of diabetes mellitus?Am J Physiol Regul Integr Comp Physiol 294, no. 6 (June 2008): R1807–12. https://doi.org/10.1152/ajpregu.00785.2007.
Ariga H, Imai K, Chen C, Mantyh C, Pappas TN, Takahashi T. Does ghrelin explain accelerated gastric emptying in the early stages of diabetes mellitus? Am J Physiol Regul Integr Comp Physiol. 2008 Jun;294(6):R1807–12.
Ariga, Hajime, et al. “Does ghrelin explain accelerated gastric emptying in the early stages of diabetes mellitus?Am J Physiol Regul Integr Comp Physiol, vol. 294, no. 6, June 2008, pp. R1807–12. Pubmed, doi:10.1152/ajpregu.00785.2007.
Ariga H, Imai K, Chen C, Mantyh C, Pappas TN, Takahashi T. Does ghrelin explain accelerated gastric emptying in the early stages of diabetes mellitus? Am J Physiol Regul Integr Comp Physiol. 2008 Jun;294(6):R1807–R1812.

Published In

Am J Physiol Regul Integr Comp Physiol

DOI

ISSN

0363-6119

Publication Date

June 2008

Volume

294

Issue

6

Start / End Page

R1807 / R1812

Location

United States

Related Subject Headings

  • Streptozocin
  • Rats, Sprague-Dawley
  • Rats
  • Pyloric Antrum
  • Postprandial Period
  • Physiology
  • Male
  • Insulin
  • Ghrelin
  • Gastric Emptying