Biguanides primarily function by which of the following mechanisms?

Biguanides primarily function by which of the following mechanisms?

• A. Increasing insulin sensitivity
• B. Increasing insulin secretion
• C. Decreasing gluconeogenesis and glucose absorption
• D. Decreasing cholesterol synthesis

Answer: (C)

Biguanides, such as metformin, primarily function by decreasing gluconeogenesis and glucose absorption. Gluconeogenesis is the process through which glucose is produced in the liver from non-carbohydrate sources. By inhibiting this pathway, biguanides effectively lower the amount of glucose that is released into the bloodstream, which is especially beneficial for individuals with type 2 diabetes whose livers are producing excessive glucose. Additionally, biguanides also promote a modest reduction in intestinal absorption of glucose, further supporting blood sugar control. This mechanism addresses the underlying insulin resistance that characterizes type 2 diabetes. While they do not primarily work by increasing insulin secretion or directly altering cholesterol synthesis, their primary action of reducing gluconeogenesis and decreasing glucose absorption plays a crucial role in managing blood glucose levels and improving the overall metabolic profile of patients with insulin resistance.

Biguanides, such as metformin, primarily function by decreasing gluconeogenesis and glucose absorption. Gluconeogenesis is the process through which glucose is produced in the liver from non-carbohydrate sources. By inhibiting this pathway, biguanides effectively lower the amount of glucose that is released into the bloodstream, which is especially beneficial for individuals with type 2 diabetes whose livers are producing excessive glucose. Additionally, biguanides also promote a modest reduction in intestinal absorption of glucose, further supporting blood sugar control.

This mechanism addresses the underlying insulin resistance that characterizes type 2 diabetes. While they do not primarily work by increasing insulin secretion or directly altering cholesterol synthesis, their primary action of reducing gluconeogenesis and decreasing glucose absorption plays a crucial role in managing blood glucose levels and improving the overall metabolic profile of patients with insulin resistance.