Table 1.

The long-term potentials in hippocampal CA3–CA1 region.

Groups	Number of independent experiments	LTP
A	6	142.58 ± 2.91
AC	6	139.14 ± 10.99
IH	6	68.45 ± 15.36*
DMSO	6	62.92 ± 11.07
CCPA	6	95.44 ± 11.69&
DPCPX	6	39.88 ± 15.38&
KO	6	37.12 ± 6.20&
F		70.61
P		<0.01

Data were presented as mean ± SD. *p < 0.01 vs. A or AC; and ^&p < 0.01 vs. IH or DMSO; n = 6 slices of three mice per group. LTP, long-term potential; A, room air; AC, intermittent air; IH, intermittent hypoxia; DMSO, IH with DMSO treatment; CCPA, IH with 2-chloro-N (6)-cyclopentyl-adenosine treatment; DPCPX, IH with 8-cyclopentyl-1,3-dipropylxanthine treatment; KO, IH with A1R knockout.