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People with insulin-dependent diabetes typically require some base level of insulin (basal insulin), as well as short-acting insulin to cover meals (bolus also known as mealtime or prandial insulin). Maintaining the basal rate and the bolus rate is a continuous balancing act that people with insulin-dependent diabetes must manage each day.
This insulin is referred to as basal insulin secretion, and constitutes almost half [1] the insulin produced by the normal pancreas. Bolus insulin is produced during the digestion of meals. Insulin levels rise immediately as we begin to eat, remaining higher than the basal rate for 1 to 4 hours.
Together with a bolus of insulin, the basal insulin completes the total insulin needs of an insulin-dependent person. An insulin pump and wristop controller is one way to arrange for a closely controlled basal insulin rate. The slow-release insulins (e.g., Lantus and Levemir) can provide a similar effect.
Diabetics and health care professionals use bolus to refer to a dosage of fast-acting insulin with a meal (as opposed to basal rate, which is a dose of slow-acting insulin or the continuous pumping of a small quantity of fast-acting insulin to cover the glucose output of the liver).
Zinc combinations of insulin are used for slow release of basal insulin. Basal insulin support is required throughout the day representing about 50% of daily insulin requirement, [18] the insulin amount needed at mealtime makes up for the remaining 50%. Non hexameric insulins (monomeric insulins) were developed to be faster acting and to ...
Insulin is a peptide hormone containing two chains cross-linked by disulfide bridges. Insulin (/ ˈ ɪ n. sj ʊ. l ɪ n /, [5] [6] from Latin insula, 'island') is a peptide hormone produced by beta cells of the pancreatic islets encoded in humans by the insulin (INS) gene. It is the main anabolic hormone of the body. [7]
Insulin degludec was studied as an alternative to insulin glargine as part of a basal-bolus regimen in the BEGIN Basal-Bolus Type 1 trial. 629 participants with type 1 diabetes were randomized in a 3:1 ratio to either insulin degludec (n=472) or insulin glargine (n=157) in addition to mealtime insulin aspart. Participants in the degludec ...
Basal insulin requirements will vary between individuals and periods of the day. The basal rate for a particular time period is determined by fasting while periodically evaluating the blood sugar level. Neither food nor bolus insulin must be taken for 4 hours before or during the evaluation period.