Motor-Evoked Potential Confirmation of Functional Improvement by Transplanted Bone Marrow Mesenchymal Stem Cell in the Ischemic Rat Brain

Table 4

MEPs recorded at the left forelimb muscle produced by bipolar stimulation.

MEPs	Preoperative baseline values		Control group (𝑛=5)		BMSC group (𝑛=5)^¶
	Amp (μV)	Lat (ms)	Amp (μV)	Lat (ms)	Amp (μV)	Lat (ms)
D wave(bsMEP)	60.4 ± 22.8*	2.4 ± 0.7	195.6 ± 70.6*	1.9 ± 0.3	142.5 ± 14.1*	2.0 ± 0.2
I wave (bsMEP)	36.1 ± 16.9	5.6 ± 1.8	NA	NA	52.9, 10.8	5.9, 10.1
bCMEP	22.1 ± 19.7	15.1 ± 2.3	NA	NA	22.7, 27.8	11.7, 14.4
bBMEP	68.4 ± 34.9^†	4.2 ± 0.7	34.8 ± 14.2	3.8 ± 0.2	21.9 ± 8.7^†	3.8 ± 0.9

*A significant difference was observed among preoperative baseline values, control, and BMSC group (One-Way ANOVA, 𝑃<.05). ^†Significant difference between two variables (Mann-Whitney 𝑈 test, 𝑃<.05). ^¶In two rats, I and bCMEP waves were found in the BMSC group at 7 days after MCAO. NA: not available; Amp: amplitude; Lat: latency.