Identification of body fluids—menstrual blood, saliva, and nasal secretions—over different periods of time, using mRNA

Egyptian Journal of Forensic Sciences

Table 6 Comparison between the gene expression levels in dried menstrual blood swabs

Menstrual blood genes (mean ± SD and p values)
	MMP7	B-actin	p value	MMP10	B-actin	p value	MMP7	MMP10	p value
1st day	35.08 ± 1.98	26.24 ± 2.25	<0.001**	34.72 ± 2.36	26.24 ± 2.25	<0.001**	35.08 ± 1.98	34.72 ± 2.36	0.511
3rd day	29.78 ± 2.98	26.24 ± 2.25	<0.001**	29.62 ± 1.17	26.24 ± 2.25	<0.001**	29.78 ± 2.98	29.62 ± 1.17	0.822
7th day	25.97 ± 3.16	17.44 ± 2.25	<0.001**	25.70 ± 2.23	17.44 ± 2.25	<0.001**	25.97 ± 3.16	25.70 ± 2.23	0.822

MMP10 Metalloproteinase 10, MMP7 Metalloproteinase 7, SD Standard deviation
Paired t test (*P is significant if < 0.05, **P is highly significant if < 0.01)