Adipose tissue is loose connective tissue composed of adipocytes. The main function is to store energy as fat, but it also has an important endocrine function.

Adipose Hormones
Hormone Regulation and Production Action
Leptin Leptin is produced when the body has had adequate to eat. Sends a signal to the appetite centre of the Hypothalamus indicating satiety. Leptin also seems to be a significant regulator of reproductive function, as animals with low body mass, and thus low leptin levels fail to cycle.
Resistin - Participates in the immune response. It may have some role in obesity and Type II Diabetes mellitus.