THE EFFECT OF ENVIRONMENTAL TEMPERATURES ON THE ACTIVITIES OF CERTAIN ENZYMES IN MAMMALIAN SKIN
Annual technical status rept. 1 Apr 1962-1 Apr 1963
TRINITY COLL DUBLIN (IRELAND)
Pagination or Media Count:
A method was described for maintaining one ear of a rabbit at about 30 C and the opposite ear at about 12 C. Rabbits kept at 6 C air temperature had ear skin temperatures ranging from an average of 16.2 C at the ear base to 12.19 C at the ear tip. There is a small but significant P 0.05 difference between the rates of oxygen consumption of minced ear skin, when measured at 30 C, from cold and warm adapted rabbits. The respective means were 1.92 and 1. 64 ul.mg N hour. The activity of succinic dehydrogenase when measured under standard conditions is very much higher in skin from cold-adapted rabbits ears as compared with warm adapted ear skin. This very significant difference becomes established with in the short time of two days at 6 C.
- Anatomy and Physiology