Fig. 10From: Changes in thyroid hormones, leptin, ghrelin and, galanin following oral melatonin administration in intact and castrated dogs: a preliminary studySchematic diagram of relationships between metabolic hormones (T3, T4. FT3, FT4, Leptin, Ghrelin, Galanin). The effects of melatonin and castration on metabolic hormones displayed as positive or negative symbols. Also, reciprocal relationship between pineal and thyroid glands and “Leptin-Ghrelin Tango” relationships indicated at top and bottom of diagramBack to article page