Table 2.

Functional enrichment of significant age-dependent piRNA.

Targets	Identified Non-Age-Dependent piRNA	Identified Age-Dependent piRNA	Enrichment, Fold Change	p-Value	Direction of Change in Age-Dependent Genes
All	36,551	980	--	--	139 down 841 up
LINE	1557	33	−1.2	0.40	4 down 19 up
SINE	1648	47	1.1	0.33	6 down 41 up
LTR	521	80	5.3	<0.00001	13 down 67 up
Satellite	52	1	−1.28	1	1 up
Protein-coding	353	142	11.8	<0.00001	24 down 118 up