Journal
JOURNAL OF MATERNAL-FETAL & NEONATAL MEDICINE
Volume 30, Issue 12, Pages 1471-1475Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/14767058.2016.1219993
Keywords
PIGF; gene expression; placenta; placental growth factor; intrauterine growth restriction
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Objective: We analyzed changes in gene expression of placental growth factor (PIGF) in human placental samples obtained postpartum from pregnancies with IUGR.Methods: During a twelve-month study period representing the calendar year of 2012 placental samples from 101 pregnancies with IUGR and from 140 normal pregnancies were obtained for analysis of a potential difference in PIGF gene expression.Results: There was no significant difference in gene activity of the PIGF gene between the IUGR versus normal pregnancy groups (Ln2: 0.92; p<0.06). Within the IUGR group, no fetal gender-dependent differences were seen in placental PIGF gene expression (Ln2: 0.72; p=0.05). Placental PIGF gene activity was significantly lower in fetuses with more severe IUGR versus less severe cases (Ln2: -1.49; p<0.03).Conclusion: We found no difference in gene expression of PIGF in placental samples obtained from IUGR pregnancies versus normal pregnancy suggesting the absence of a direct role of PIGF gene activity in the development of defective angiogenesis in IUGR during the later stages of gestation. However, in more severe cases of intrauterine growth restriction PIGF expression does show a significant decrease indicating its potential role in the profound defect in angiogenesis in these cases.
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