Body weight is tightly controlled in a species-specific range from insects to vertebrates and
organisms have developed a complex regulatory network in order to avoid either excessive
weight gain or chronic weight loss. Energy homeostasis, a term comprising all processes
that aim to maintain stability of the metabolic state, requires a constant communication of the
different organs involved; ie adipose tissue, skeletal muscle, liver, pancreas and the central
nervous system (CNS). A tight hormonal network ensures rapid communication to control …