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

Egyptian Journal of Forensic Sciences

Table 2 Gene expression levels at different storage days

Gene expression at different days	Menstrual blood genes		Saliva genes		Nasal genes
Gene expression at different days	MMP7	MMp10	STATH	HTN3	STATH	BPIFIA
1st day	35.08 ± 1.98	34.72 ± 2.36	36.64 ± 3.33	35.31 ± 2.80	28.05 ± 2.91	33.78 ± 4.41
3rd day	29.78 ± 2.98	29.62 ± 1.17	29.21 ± 4.88	29.85 ± 2.53	25.90 ± 3.53	32.21 ± 3.02
7th day	25.97 ± 3.16	25.70 ± 2.23	23.08 ± 3.44	25.36 ± 3.61	21.81 ± 3.62	27.78 ± 4.69
p value	<0.001**	<0.001**	<0.001**	<0.001**	<0.001**	<0.001**

ANOVA test
STATH Statherin, HTN3 Histatin3, BPIFA1 Lipid-binding protein that plays a role in the innate immune responses of the upper airway, MMP10 Metalloproteinase 10, MMP7 Metalloproteinase 7
*P is significant if < 0.05, **P is highly significant if < 0.01