Regulatory peptides are responsible for the transfer of information within the tissues and the cells, between different organisms, and between the various organs of the body. These peptides are produced by all species of life, ranging from mammals to bacteria. So far, these peptides have shown signs and indications to be among the most diverse signaling molecules of all the molecules ever discovered in this category.
They have a broad spectrum of biological effects, with the most notable ones being their ability to act as hormones, pheromones, growth factors, neurotransmitters, and antibiotics, among others. Within the animal world, regulatory peptides affect a variety of physiological activities, including renal, cardiovascular, immune, and respiratory functions, among others. They are also greatly involved in a variety of physiopathological conditions, and are very well known to play vital roles in conditions such as stroke, autism, diabetes, gastrointestinal diseases, and pain transmission, among others.