1.14.11.1	additional information	highest mRNA concentrations in epididymis and in kidney. In heart, colon, small intestine, lung, spleen, testes and brain lower mRNA levels compared to liver. In skeletal muscle almost absent mRNA amount	
1.14.11.1	up	activity of gamma-butyrobetaine dioxygenase lowest at birth in liver and kidney, but increase until age of 2 weeks	
1.14.11.1	up	detection of mRNA levels during suckling period onwards, expression is ontogenically regulated	
1.14.11.1	up	hepatic activity is low at birth but increases after 1 day. By 21 days, the activity rises by 6.6fold and remains constant after 56 days. Renal activity is higher than in liver at birth but remains constant through 35 days. By 56 days, the velocity increases by 44% over the activity at birth