Histochemistry

, Volume 93, Issue 1, pp 49–53 | Cite as

Phosphoenolpyruvate carboxykinase activity patterns in the liver acinus of diabetic and diabetic and estrogen treated rats

  • M. Wimmer
Article
Accepted:

Summary

The acinar activity pattern of phosphoenolpyruvate carboxykinase (PEPCK) was investigated in livers of streptozotocin diabetic male and female rats and in addition in livers of diabetic males, which had undergone estrogen treatment. In all diabetic animals blood glucose levels were supranormal and liver PEPCK activity was increased. This increase in activity was greatest in estrogen treated diabetic males and lowest in diabetic females. Plasma insulin levels were reduced after the application of streptozotocin to otherwise normal male and female rats. Yet, in males treated in addition with estrogens the plasma insulin levels reached the normal range again. The PEPCK activity showed a heterotopic distribution along the acinus. The periportal to perivenous gradient was steeper in males compared to females in the untreated as well as in the diabetic state. The application of estrogens to males resulted in a further steepening of the gradient.

Keywords

Estrogen Blood Glucose Level Activity Pattern Streptozotocin Diabetic Animal 
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Copyright information

© Springer-Verlag 1989

Authors and Affiliations

  • M. Wimmer
    • 1
  1. 1.Anatomisches Institut der Universität BaselBaselSwitzerland

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