Figure 4. Reverse transcription PCR analysis of α-synuclein expression in the cerebral cortices of non-diabetic + sham, diabetic + sham, non-diabetic + MCAO, and diabetic + MCAO animals. Each lane represents an individual animal. The band intensity of the RT-PCR product was normalized to that of the actin product. Data (n=4) are shown as mean±SEM. ^*P<0.05.