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Deprecated: Implicit conversion from float 229.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Am+J+Physiol+Regul+Integr+Comp+Physiol 2016 ; 311 (1): R1-9 Nephropedia Template TP
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Identifying immune mechanisms mediating the hypertension during preeclampsia #MMPMID27097659
LaMarca B; Cornelius DC; Harmon AC; Amaral LM; Cunningham MW; Faulkner JL; Wallace K
Am J Physiol Regul Integr Comp Physiol 2016[Jul]; 311 (1): R1-9 PMID27097659show ga
Preeclampsia (PE) is a pregnancy-associated disorder that affects 5?8% of pregnancies and is a major cause of maternal, fetal, and neonatal morbidity and mortality. Hallmark characteristics of PE are new onset hypertension after 20 wk gestation with or without proteinuria, chronic immune activation, fetal growth restriction, and maternal endothelial dysfunction. However, the pathophysiological mechanisms that lead to the development of PE are poorly understood. Recent data from studies of both clinical and animal models demonstrate an imbalance in the subpopulations of CD4+ T cells and a role for these cells as mediators of inflammation and hypertension during pregnancy. Specifically, it has been proposed that the imbalance between two CD4+ T cell subtypes, regulatory T cells (Tregs) and T-helper 17 cells (Th17s), is involved in the pathophysiology of PE. Studies from our laboratory highlighting how this imbalance contributes to vasoactive factors, endothelial dysfunction, and hypertension during pregnancy will be discussed in this review. Therefore, the purpose of this review is to highlight hypertensive mechanisms stimulated by inflammatory factors in response to placental ischemia, thereby elucidating a role