Undoubtedly, the food intake process is one of the most necessary physiological functions
for the survival of animals and humans. Although; this operation seems simple on the …

Brain tissues obtained from a passerine songbird (dark-eyed junco, Junco hyemalis) were
used to identify and partially characterize central opioid receptors. We found that [3 H] EKC …

Central regulatory mechanisms for food intake regulation vary among animals. Evidence
from animal studies suggests central opioids and dopamine have prominent role on appetite …

It is well established that opioid signaling in the central nervous system constitutes a
powerful stimulus for food intake. The role of opioids in determining food preference …

The present review summarizes the state of knowledge of endogenous opioids in birds.
Endogenous opioid peptides acts in a neuromodulatory, hormonal and paracrine manner to …

Endogenous opioid peptides activate food seeking behaviour and influence macronutrient
choice in a number of animal species and previous studies have suggested that the …

The discovery of opiate receptors and endogenous opioid peptides within the central
nervous system has resulted in a number of speculations concerning the physiological …

Animal models allow us to investigate the basic mechanisms by which food intake is
regulated. There are a host of neuroregulators distributed across a complex central network …

Motivation is a complex neurobiological process that initiates, directs, and maintains goal-
oriented behavior. Although distinct components of motivated behavior are difficult to …

Three experiments were conducted to determine whether opioid regulation of ingestive
behavior in the domestic fowl is mediated at sites within the central nervous system (CNS) or …