<prompt> Leptin is secreted by?OvariesAdipose tissueLiverHypothalamus  <response>: Ans, B, Adipose tissue.Ref: Principles of medical physiology p.p704Leptin is a protein hormone produced by fat cells of adipose tissue.It acts on hypothalamus to reduce food intake, decrease lipogenesis and increase lipolysis, thereby reducing the body fat stores. 