What is the function of leptin?

What is the function of leptin?

• A. Regulates appetite.
• B. Regulates blood pressure.
• C. Stimulates insulin release.
• D. Maintains bone density.

Answer: (A)

Leptin is a hormone produced by fat tissue that communicates the amount of stored energy to the brain. When fat stores are sufficient, leptin levels rise and act on receptors in the hypothalamus to decrease appetite and help regulate energy balance. This signaling is the reason it’s best described as regulating appetite. The other functions listed don’t capture leptin’s primary role: blood pressure is controlled mainly by cardiovascular and renal systems; insulin release is driven by pancreatic beta cells in response to glucose; and bone density is managed by bone remodeling signals rather than leptin’s central appetite-regulating action.

Leptin is a hormone produced by fat tissue that communicates the amount of stored energy to the brain. When fat stores are sufficient, leptin levels rise and act on receptors in the hypothalamus to decrease appetite and help regulate energy balance. This signaling is the reason it’s best described as regulating appetite. The other functions listed don’t capture leptin’s primary role: blood pressure is controlled mainly by cardiovascular and renal systems; insulin release is driven by pancreatic beta cells in response to glucose; and bone density is managed by bone remodeling signals rather than leptin’s central appetite-regulating action.