Association botween uterine and umbilical doppler velocimetry and increased placental apoptosis in preeclampsia and its correlation with perinatal outcome

2- To assess the apoptotic changes in the trophoblastic cell innormal term placentae and in term placentae complicated byeither preeclampsia and I U G R and its correlation with doppler velocity of the umbilical and uterine arteries .1- To demonstrate a possible rules of apoptosis in placenta inrelation to the pathophysiology of preeclampsia and IU G R .