To come up with cold, hard data about the health benefits of pets. Pets Make the Rounds One project involving cancer patients and dogs is already under way, and another which will study levels of five hormones in animals and people while they interact will begin early next year. The active study examines the effects of dogs on cancer patients in radiation therapy, said veterinarian Dr. Richard Meadows, a lead researcher and acting director of the Center for the Study of Animal Wellness at the university. There are connections between mental attitude and the immune system, and we want to look at that. Prolactin is involved in social bonding and reducing stress, and oxytocin is the hormone that helps form relationship bonds.
Dopamine is a signaling chemical in the brain involved in many of the body's processes.
Scientists will monitor levels of each chemical in patients and their canine visitors simultaneously, Meadows said. Odendaal found all five hormones peaked in both the humans and the dogs when they interacted. The American team wants to replicate and expand on those results and eventually perform the same tests with cats and other pets. If this study yields similar findings, it could have significant impact on how doctors treat emotional problems such as depression and anxiety, and even certain physical illnesses. It will also help this type of therapy be better accepted by the medical community.