Hyden and Lange (1) have reported that rats trained on the reversal of handedness exhibit increased protein synthesis in pyramidal neurons of the hippocampus. Their data, however, left the validity of this biochemical finding unresolved, for reasons discussed below. In particular, differences in the 3H-leucine concentrations suggest that the apparent increase in protein synthesis was an artifac...

Because of the extensive hydrolysis of dietary proteins in the rumen and the attendant wastage of nitrogen which is absorbed as ammonia across the rumen wall and excreted as urea in the urine, the ruminal synthesis of bacterial and protozoal proteins has a special importance in the nutrition of the ruminant. This paper considers the factors influencing microbial protein synthesis in simple in v...

Let us start at the very beginning. Between 1897 and 1899, G. Gamier, in France, published elegant microscope studies describing a basophilic component ofthe cytoplasm of glandular cells (1) . Because of what he thought its role might be in the elaboration and transformation of secretory products, he gave a Greek name to these concepts-ergastoplasm (work plasm) . Gamier's research was extended ...