Table 1.

Overview of the characteristics reported in the studies included by Huang et al. in their meta-analysis of pre-clinical trials with neural stem progenitor cells (NSPCs) for stroke.

Characteristic	Possible Variants	Number of Studies
Stroke model	transient	46
	permanent	16
Animals used in the trial	rats	40
	mice	19
	Mongolian gerbil	2
	pigs	1
Gender	male	54
	female	1
	not stated	7
Source of NSPCs	human	28
	rat	14
	mouse	20
Use of immunosuppressors	yes	21
	no	24
	not stated	14