[Differentially expressed genes associated with cold acclimation].

To investigate the upregulated genes associated with cold acclimation, a cold acclimation model was established based on Balb/C mouse. mRNA of muscle and liver were isolated, and the upregulated genes of these tissues were studied by representational differential analysis (RDA). The upregulated genes then were sequenced and searched by Blast software in GenBank database.

[Study on mitochondrial membrane mechanism of rat heart injury induced by constrainting stress].

Objective: To investigate the effect of constrainting stress on biological characters and function of mitochondrial membrane in rat heart and to explore the possible mitochondrial membrane mechanism underlying stress-induced heart injury.

Method: Stress animal model was established. After constrained for different times, all rats were killed and several indexes were examined.