Neurological Effects of Combining Low Toxic Dose of Tramadol and Nicotine: An Animal Model Evidence of Endoplasmic Reticulum Stress

Figure 3

Sections of brain white matter of six groups showing dilated congested vessel in G1(high-dose tramadol) (green arrow) and increased inflammatory microglia in all groups in comparison to G6 (normal control) (yellow arrows) (×400 all).