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Humulin is a brand name for synthetic human insulin, a hormone that regulates blood sugar levels. It is produced by the beta cells of the islets of Langerhans in the pancreas. Insulin is essential for allowing glucose to enter cells for energy and for storage.12

The discovery of insulin's role in treating diabetes mellitus was a significant medical advancement. Initially, insulin was extracted from animal pancreases. However, through recombinant DNA technology, pharmaceutical companies can now produce synthetic human insulin, identical to that produced by the human body. This synthetic version, like Humulin, has been crucial in managing diabetes.312

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