Changes in sexual hormones, serotonin, and cortisol concentrations  following oral administration of melatonin in castrated and intact dogs

Melatonin is a regulatory hormone that orchestrates many responses to changes occurring in the body and environment. In the present study, melatonin was administrated immediately after castration to 20 male dogs (3  mg/10 Kg, Per os or orally, four groups [n = 5]: melatonin, castrated, castrated + melatonin, and control) for 30 days. Blood samples were collected weekly from jugular vein from 2 days after melatonin administration. Steroidal hormones (estradiol, testosterone, progesterone (P4), and cortis ol) and serotonin were measured by enzyme-linked immunosorbent assay kits.
Source: Journal of Veterinary Behavior: Clinical Applications and Research - Category: Veterinary Research Authors: Tags: Canine Research Source Type: research