Total protein and apo A‐I synthesis were studied in suspensions of isolated hepatocytes from winter‐ and summer‐acclimatized carp. The overall protein synthesis in liver is significantly higher in summer‐adapted fish. Although apo A‐I synthesis accounts for the same fraction of the total protein synthesis when assayed at the seasonal environmental temperature in both adaptive states, winter‐acclimatized fish synthesize apo A‐I at 10°C at a higher rate than the summer fish. Thus, reprogramming of apo A‐I synthesis accompanies the adaptative compensatory response. Differences were found in the apo A‐I content in liver of carp acclimatized to the cold and warm seasons. The low apo A‐I content found in the liver of winter‐acclimatized carp reverses upon treatment of the fish with insulin. This apo A‐I enhancement leads to hepatocytes resembling those of the summer‐acclimatized state.
Áreas temáticas de ASJC Scopus
- Animales y zoología