Table 2.

Neuronal density (number of neurons/mm²), cell layer (SP) thickness (µm), and neuronal area (µm²) in CA1 of control and experimental animals

Animal group	Neuronal density (per μm2)	P-value	Cell layer (SP) thickness (µm)	P-value	Neuronal area (µm2)	P-value
Normal control	93.95±13.71	≤0.05a)	41.58±7.098	≤0.001a)	78.21±21.19	≤0.001a)
As2O3 alone	74.81±16.81	-	29.65±5.281	-	54.74±10.55	-
Curcumin alone	82.86±8.763	≤0.05b)	37.74±1.768	≤0.001b)	74.31±11.52	≤0.001b)
As2O3+curcumin	82.47±11.79	>0.05c)	37.36±2.552	≤0.001c)	75.48±14.21	≤0.001c)

SP, Stratum pyramidale. ^a)Control vs. As₂O₃. ^b)Curcumin vs. As₂O₃. ^c)As₂O₃+curcumin vs. As₂O₃.