Table 1.

Quantification mRNA levels of Ldh-a, Ldh-b in plateau pika tissues at 3200 m and 4200 m altitudes.

Tissues	Ldh-a		Ldh-b
	3200 m	4200 m	3200 m	4200 m
heart	0.955 ± 0.029 **	0.811 ± 0.045	0.973 ± 0.022 **	0.880 ± 0.024
liver	0.959 ± 0.087	0.895 ± 0.095	0.909 ± 0.037	0.894 ± 0.035
brain	0.919 ± 0.032 **	0.785 ± 0.033	0.870 ± 0.048 **	0.785 ± 0.033
skeletal muscle	0.935 ± 0.037	0.847 ± 0.170	0.735 ± 0.046 *	0.641 ± 0.118

* p < 0.05, ** p < 0.01; The sample size is 10 for each group.