Cited by 32Pancreatic function and diabetesDiabetes, Cardiovascular Risks, and LipoproteinsDiabetes Treatment and Management

Splanchnic insulin dynamics and secretion pulsatilities in abdominal obesity

Sonnenberg, Gabriele E, Hoffman, Raymond G, Mueller, Robert A, Kissebah, Ahmed H·1994·Diabetes

Abstract

Insulin secretion, clearance dynamics, and their relationship to peripheral plasma insulin and glucose levels were monitored during three 12-h periods of overnight rest, intake of three meals, and continuous enteral feeding of mixed nutrients. The low-frequency ultradian and the high-frequency insulin secretion pulsatility characteristics during the steady-states of overnight rest and continuous enteral feeding were also examined. In abdominally obese subjects, the insulin secretion rate was consistently higher than normal by 2.3-fold. Peripheral plasma insulin levels were increased by 3.4-fold during the overnight period and by 4- to 5-fold during the two fed states. Endogenous insulin clearance was significantly reduced during feeding. Both low- and high-frequency insulin secretory pulsatilities were detected in the abdominally obese subjects. Pulse periods were within the normal range. Pulse maxima, nadirs, and absolute amplitudes were increased concomitant with the increase in insulin secretion. Ultradian relative pulse amplitudes, however, were blunted. A significantly higher pulse-to-pulse variability was observed in the abdominally obese subjects compared with normal subjects. Furthermore, a significantly higher level of interindividual variability in the nutrient-stimulated insulin secretion and in the ultradian pulse characteristics was observed. Thus in abdominal obesity, the increase in pancreatic insulin output is limited and the secretory pulsatilities are aberrant, suggesting a defect in the insulin secretory process. Diminished insulin clearance contributes to the degree of peripheral hyperinsulinemia compensating for the insulin resistance characteristic of this form of obesity.

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Crossref · 10.2337/diab.43.3.468

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Authors
Sonnenberg, G. E., Hoffman, R. G., Mueller, R. A., & Kissebah, A. H.
Affiliations
Medical College of Wisconsin (US)
Venue
Diabetes
Published
1994-03-01
Volume
43
Issue
3
Pages
468-477
ISSN
  • 0012-1797 (ISSN-L)
  • 1939-327X
OpenAlex
W2168141798
Cited by
32
References
0
Citations by year
2016: 1 · 2013: 1 · 2012: 1
FWCI
5.22
Type
journal article
Language
en
Open access
closed
Locations
  • Diabetes (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5r01hl034989-08)
  • National Heart, Lung, and Blood Institute (HL 34989)
  • National Center for Research Resources (RR00058, M01RR000058)
  • NIH Clinical Center
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
abdominal obesity, insulin secretion, insulin pulsatility, insulin clearance, hyperinsulinemia, insulin resistance, enteral nutrition, meal ingestion, interindividual variability, beta-cell function
MeSH terms
Abdomen, Insulin Secretion, Adipose Tissue, Adult, Blood Glucose, Body Constitution, Enteral Nutrition, Female, Humans, Insulin, Obesity, Periodicity

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