IL-1 activity is expressed differently during pregnancy in the rat uterine artery than in aortic or uterine tissues.

Problem: Uterine artery was shown to be unique in its capacity to change in size and function during pregnancy. As interleukin-1 (IL-1) was shown to be involved in reproduction processes, the aim of this study was to determine the levels of IL-1 activity of the uterine artery tissue in pregnant rat.

Method Of Study: Nine virgins and nine midpregnant rats were selected.