Research Article

Protective Effect of Matricaria chamomilla Ethanolic Extract on Hippocampal Neuron Damage in Rats Exposed to Formaldehyde

Figure 3

Micrographs of TUNEL assay of rats’ hippocampi (CA1, CA3, and DG regions): C: control group; F: formaldehyde-treated group; 200: 200 mg/kg MC-treated group; 500: 500 mg/kg MC-treated group; F200: formaldehyde plus 200 mg/kg MC-treated group; F500: formaldehyde plus 500 mg/kg MC-treated group. Arrows indicate apoptotic cells; MC impact on decreasing number of apoptotic cells in rats’ hippocampi (CA1, CA3, and DG regions); C, 200, 500, FM500 groups versus F group. F200 group versus F group.