Glucose regulated release

Before we can start to develop a model we also have to decide how to interpret the behavior observed in Fig. 2.1. The variations in insulin and glucose concentrations could be generated by a damped oscillatory system that was continuously excited by external perturbations (e.g. through interaction with the pulsatile release of other hormones). However, the variations could also represent a disturbed self-sustained oscillation, or they could be an example of deterministic chaos. Here, it is important to realize that, with a sampling period of 10 min over the considered periods of 20-24 h, the number of data points are insufficient for any statistical analysis to distinguish between the possible modes. We need to make a choice and, in the present case, our choice is to consider the insulin-glucose regulation to operate... 

Levin BE. 2000. Glucose-regulated dopamine release from substantia nigra neurons. Brain Res 874 158-164. 

Glycogen Metabolism Is the Regulated Release and Storage of Glucose... 

Prandial glucose regulators are relatively new oral hypoglycaemics. Examples are nateg-linide and repaglinide. They stimulate insulin release from P-cells in the pancreas. They are conveniently taken just before each main meal and have a rapid onset and short duration of action. They should be used together with metformin if glucose control is not sufficient with metformin alone. 

Randle, P. J., and Smith, G. H., 1958, Regulation of glucose uptake by muscle. 1. The effects of insulin, anaerobiosis and cell poisons on the uptake of glucose and release of potassium by isolated rat diaphragm, Biochem. ]. 70 490. 

In an attempt to conserve sodium, the kidney secretes renin increased plasma renin activity increases the release of aldosterone, which regulates the absorption of potassium and leads to kafluresis and hypokalemia. Hypokalemia is responsible in part for decreased glucose intolerance (82). Hyponatremia, postural hypotension, and pre-renal azotemia are considered of tittle consequence. Hypemricemia and hypercalcemia are not unusual, but are not considered harmful. However, hypokalemia, progressive decreased glucose tolerance, and increased semm cholesterol [57-88-5] levels are considered... 

Protein kinase A (PKA) is a cyclic AMP-dependent protein kinase, a member of a family of protein kinases that are activated by binding of cAMP to their two regulatory subunits, which results in the release of two active catalytic subunits. Targets of PKA include L-type calcium channels (the relevant subunit and site of phosphorylation is still uncertain), phospholam-ban (the regulator of the sarcoplasmic calcium ATPase, SERCA) and key enzymes of glucose and lipid metabolism. 

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