Multiple Comparison of Treatment Groups after Adjusted Covariate
Group(s)	MDA	CAT	SOD
Control vs ISO	593.74 (279.82)*	−19.94 (2.84)*	−8.37 (3.48)*
Control vs EEUL 250 mg/kg BW	279.55 (223.81)	−2.10 (2.22)	−5.77 (2.38)*
Control vs EEUL 500 mg/kg BW	266.61 (201.68)	−2.59 (2.03)	−4.22 (2.30)
Control vs EEUL 750 mg/kg BW	−20.28 (236.59)	−8.80 (2.32)*	−5.71 (2.89)
Control vs Melatonin	463.52 (307.50)	−5.23 (2.99)	−4.28 (3.98)

Result are expressed as coefficients of regression (SE)

^*P < 0.05 significant difference

MDA = malondialdehyde

CAT = catalase

SOD = superoxided dismutase

ISO = isoproterenol

EEUL = ethanolic extract from Ulva lactuca L.