alexa Placental apoptosis in preeclampsia.


Journal of Blood Disorders & Transfusion

Author(s): Allaire AD, Ballenger KA, Wells SR, McMahon MJ, Lessey BA

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Abstract OBJECTIVE: To determine whether preeclampsia is associated with an increase in placental apoptosis and differential expression of mediators of apoptosis. METHODS: Placental samples from 31 preeclamptic women and 31 normotensive controls were analyzed using terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate nick-end labeling staining. Expression of Fas, Fas ligand, Bcl-2, and Bax was assessed using immunohistochemistry. RESULTS: The median percent apoptotic nuclei was significantly higher for the study group than for the controls (0.49 versus 0.19; P =.001), as was the median percent apoptotic nuclei in the trophoblast nuclei (0.33 versus 0.09; P <.01). Fas ligand expression was significantly less and Fas expression significantly greater in the villus trophoblast among the study subjects compared with controls. There was no difference in the expression of Bax or Bcl-2 between groups. CONCLUSION: Placental apoptosis and altered expression of Fas and Fas ligand in trophoblast might influence pathogenesis or sequelae of preeclampsia.
This article was published in Obstet Gynecol and referenced in Journal of Blood Disorders & Transfusion

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