Cited by 75Pancreatic function and diabetesDiabetes, Cardiovascular Risks, and LipoproteinsDiabetes Treatment and Management

Relationship of Islet Function to Insulin Action in Human Obesity*

BEARD, JAMES C., WARD, W. KENNETH, WALLUM, BRAD J., PORTE, DANIEL·1987·The Journal of Clinical Endocrinology & Metabolism

Abstract

To analyze B-cell mechanisms in obesity, we measured the relationship (slope of potentiation) between glucose levels and acute insulin responses (AIR) to isoproterenol or arginine in nondiabetic subjects ranging from lean to markedly obese. Obese men (n = 9) had higher AIRs to isoproterenol than lean men (n = 11) at basal glucose levels [52 +/- 9 (SEM) vs. 32 +/- 5 microU/mL; P less than 0.05], and the difference increased as the ambient glucose level was raised (at 230 mg/dL; 263 +/- 22 vs. 140 +/- 21 microU/mL; P less than 0.0008). The individuals' slopes of glucose potentiation of AIR to isoproterenol were positively correlated with their excess weight (r = 0.72; P less than 0.001). Similar results were found when arginine was used as the secretagogue in other men and in women; the slope of potentiation was positively correlated with excess weight in both men and women (both P less than 0.005), although the effect of excess weight on slope was 51% greater among men (P less than 0.03). An independent measurement of insulin sensitivity (the Bergman SI) was made in the women. The potentiation slope was inversely correlated with SI (P less than 0.0001), indicating that the effect of obesity on insulin secretion is correlated with insulin resistance. These results characterize one mechanism contributing to the hyperinsulinemia of obesity and highlight the importance of considering the prevailing insulin sensitivity when assessing islet function.

Integrity signals

Registry

Crossref · 10.1210/jcem-65-1-59

Cites

33 of 33 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
BEARD, J. C., WARD, W. K., WALLUM, B. J., & PORTE, D.
Affiliations
United States Department of Veterans Affairs (US)
Venue
The Journal of Clinical Endocrinology & Metabolism
Published
1987-07
Volume
65
Issue
1
Pages
59-64
ISSN
  • 0021-972X (ISSN-L)
  • 1945-7197
OpenAlex
W1984480525
Cited by
75
References
33
Citations by year
2025: 1 · 2023: 1 · 2022: 2 · 2021: 2 · 2019: 1 · 2018: 2 · 2016: 1 · 2015: 2 · 2014: 2 · 2013: 1 · 2012: 2
FWCI
3.78
Type
journal article
Language
en
Open access
closed
Locations
  • The Journal of Clinical Endocrinology & Metabolism (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institutes of Health (5r01am012829-17)
Topics
  • Health Sciences › Medicine › Surgery › Pancreatic function and diabetes
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes, Cardiovascular Risks, and Lipoproteins
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Treatment and Management
Keywords
obesity, beta-cell function, insulin secretion, acute insulin response, insulin resistance, insulin sensitivity, isoproterenol, L-arginine, hyperinsulinemia, overweight
MeSH terms
Adult, Arginine, Blood Glucose, Female, Humans, Insulin, Insulin Resistance, Islets of Langerhans, Isoproterenol, Male, Middle Aged, Obesity

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review