Galanin Mouse, Rat – Neuroscience Peptides

Galanin (mouse, rat) is 29 amino acids, 1 less than human galanin. Galanin is a widely distributed neuropeptide in the central nervous, peripheral, and endocrine systems. Galanin interacts with 3 receptor subtypes, GalR1-3. These G protein-coupled receptors are inserted into the plasma membrane. Galanin has a role in energy homeostasis. Central injections of galanin to the amygdala lead to food intake in rats. Galanin has been shown to inhibit glutamate release from the hippocampus. Glutamate has an excitatory effect in the mechanisms of epileptic seizures- therefore, galanin is considered a possible anticonvulsant. Galanin receptor agonists with anticonvulsant properties have been developed to help seizures. Galanin has also helped provide evidence of neuronal plasticity and degradation. Galanin has been used extensively for administration to animals in vivo including rats and mice to better understand its role and help treat appetite disorders.