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Maternal, Umbilical Arterial Metabolic Levels and Placental Nrf2/CBR1 Expression in Pregnancies with and Without 25-Hydroxyvitamin D Deficiency

Gynecological endocrinology(2021)

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摘要
Background The aim of this case-control study was to document maternal, umbilical arterial metabolic levels and correlations in pregnancies with and without 25-hydroxyvitamin D [25(OH)D] deficiency, while, also investigating the expression of nuclear factor erythroid 2 related factor 2 (Nrf2) and carbonyl reductase 1 (CBR1) in the placenta. Methods One hundred participants, 50 deficient for 25(OH)D and 50 normal, were recruited from among hospitalized single-term pregnant women who had elected for cesarean section. Umbilical arterial and placental samples were collected during cesarean section. Metabolic levels were assessed for the 25(OH)D deficiency and control groups' maternal, umbilical arterial samples. Nrf2 and CBR1 expression levels were investigated in the placentas of 12 pregnant women with 25(OH)D deficiency and 12 controls. Results Compared with the control participants, the 25(OH)D deficient women had significantly higher triglyceride (TG) levels (3.80 +/- 2.11 vs. 2.93 +/- 1.16 mmol/L, 3.64 +/- 1.84 vs. 2.81 +/- 1.16 mmol/L, p < .01, .001); lower high density lipoprotein cholesterol (HDL-C) levels (1.54 +/- 0.32 vs. 1.82 +/- 0.63 mmol/L, 1.41 +/- 0.72 vs. 2.44 +/- 1.68 mmol/L, p < .001, .01) in both material blood and the umbilical artery. In addition, Nrf2 and CBR1 expression levels were lower in the maternal 25(OH)D deficient placenta. Conclusion 25(OH)D deficient pregnant women have higher TG levels and lower HDL-C levels in both material blood and the umbilical artery. TG level is negatively correlated with 25(OH)D in both the maternal serum and infant umbilical artery. 25(OH)D deficiency also lowers placental expression of Nrf2 and CBR1.
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关键词
25(OH)D deficiency,metabolic levels,nuclear factor erythroid 2 related factor 2,carbonyl reductase 1
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