Figure 4a: Expression of Mellb in Teff cells following melatonin and Catecholamines (NE, E, supplementation in cultures. A significant increase was noted in the expression of Mellb following supplementation of Nor-epinephrine (NE). Teffs Cells Mellb; ***P<0.001; *#P<0.05 vs. Resting. Each histogram represent+SEM No. of experiment=5. (Teffs: Teffector; MEL: Melatonin; NE: Nor Epinephrine; E: Epinephrine; DA: Dopamine).