Injecting leptin into leptin-deficient mice reduces the animals' appetites and speeds up their metabolism.

Question

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Leptin is a hormone that plays a role in regulating appetite and metabolism. Leptin-deficient mice have a genetic mutation that prevents them from producing adequate amounts of leptin. Injecting leptin into these mice can help reduce their appetite and increase their metabolism, leading to weight loss.

Injecting Leptin into Leptin-Deficient Mice Reduces the Animals' Appetites and Speeds