𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The role of glucagon in the regulation of blood glucose: Model studies

✍ Scribed by Ruby Celeste; Eugene Ackerman; Laël C. Gatewood; Clayton Reynolds; George D. Molnar


Publisher
Springer
Year
1978
Tongue
English
Weight
867 KB
Volume
40
Category
Article
ISSN
1522-9602

No coin nor oath required. For personal study only.

✦ Synopsis


Mathematical models afford a procedure of unifying concepts and hypotheses by expressing quantitative relationships between observables. The model presented indicates the roles of both insulin and glucagon as regulators of blood glucose, albeit in different ranges of the blood glucose concentrations. Insulin secretion is induced during hyperglycemia, while glucagon secretion results during hypoglycemia. These are demonstrated by simulations of a mathematical model conformed to data from the oral glucose tolerance test and the insulin infusion test in normal control subjects and stable and unstable diabetic patients. The model studies suggest the parameters could prove of value in quantifying the diabetic condition by indicating the degree of instability.

I. Introduction.

The regulation of the glucose concentration in the blood of humans is one of the basic metabolic functions of the organism. Too low levels (hypoglycemia) may lead to emotional distress, mental confusion and


📜 SIMILAR VOLUMES


Role of glucose and insulin in the dynam
✍ V. Leclercq-Meyer; J. Marchand; W. J. Malaisse 📂 Article 📅 1983 🏛 Springer 🌐 English ⚖ 555 KB

The effect of glucose upon the release of glucagon and insulin from the perfused rat pancreas in vitro was studied by varying both the concentration of glucose (from 3.3 to 4.6, 8.5, or 11.1 mmol/l) and the time of exposure to an elevated concentration of the sugar (5, 10 or 23 min). The results sug

Tests of a mathematical model of the blo
✍ Laël C. Gatewood; Eugene Ackerman; John W. Rosevear; George D. Molnar; Thomas W. 📂 Article 📅 1968 🏛 Elsevier Science 🌐 English ⚖ 788 KB

A simplified model of the blood-glucose regulatory system has been conformed to data from glucose-tolerance tests in nondiabetics measured by continuous sampling after oral ingestion and by intermittent determinations after different routes of administration. Despite the numerous approximations inhe

Volume regulation by Flounder red blood
✍ Cala, Peter M. 📂 Article 📅 1977 🏛 John Wiley and Sons 🌐 English ⚖ 579 KB

## Abstract The nucleated red blood cells of the Winter Flounder __Pseudopleuronectes americanus__ demonstrate a volume regulatory response subsequent to osmotic perturbation. The net water movements associated with the response are secondary to net inorganic cation flux. The increased net cation f