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Original

INHIBIN A SERUM LEVELS IN PROTEINURIC AND NONPROTEINURIC PREGNANCY-INDUCED HYPERTENSION: EVIDENCE FOR PLACENTAL INVOLVEMENT IN GESTATIONAL HYPERTENSION?

, , , , , & show all
Pages 315-321 | Published online: 03 Aug 2009
 

Abstract

Objectives: To evaluate the serum levels of inhibin A in pregnant women with different types of hypertension.

Methods: A case-control study, including 60 cases (20 women with preeclampsia, 20 with mild gestational hypertension, and 20 with chronic hypertension), and 60 gestational-age- and parity-matched controls. Inhibin A was measured in duplicate by enzyme-linked immunosorbent assay in serum samples frozen at –80°C.

Results: As compared to controls, inhibin A levels were significantly elevated in women with preeclampsia {2.32 standard deviation (SD) 1.4} versus 0.50 (0.29) n/mL, P < 0.001) and gestational hypertension [1.09 (0.73) versus 0.55 (0.29) n/mL, P < 0.05], but not in the group of chronic hypertension [0.88 (0.69) versus 0.54 (0.39) n/mL, P = 0.08]. Overlap in inhibin A values between cases and controls was observed in 20% (4/20) of women with preeclampsia and 55% (11/0) with gestational hypertension.

Conclusions: Increased serum inhibin A may indicate that a proportion of mild nonproteinuric hypertension cases are associated with placental involvement.

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