Glucocorticoids in pregnancy.

نویسندگان

  • Beata Marciniak
  • Jolanta Patro-Małysza
  • Elżbieta Poniedziałek-Czajkowska
  • Zaneta Kimber-Trojnar
  • Bożena Leszczyńska-Gorzelak
  • Jan Oleszczuk
چکیده

The fetus may be exposed to increased endogenous or synthetic glucocorticoid (GS) exposure in late gestation. Approximately 7% of pregnant women in Europe and North America are treated with synthetic GSs to promote lung maturation in fetuses at risk of preterm delivery. Maternal steroid treatment before preterm delivery is one of the best documented and most cost effective life saving treatments in prenatal medicine but, in certain circumstances, the price of accelerated lung maturity may be loss of brain cells, increased neurodevelopmental disability, intra-uterine growth restriction (IUGR), and an increased risk of preterm delivery, of programming of post-natal hypertension, and of increased post-natal activity in the hypothalamo-pituitary-adrenal (HPA) axis. Placental 11β-hydroxysteroid dehydrogenase type 2 (11β-HSD2) is the key enzyme which protects the fetus from overexposure to GSs by their oxidation into inactive derivates. We review the evidence for the metabolism of GSs during pregnancy and how endogenous and synthetic GSs cause other changes in the placenta which affect fetal development.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Potential significance of physiological and pharmacological glucocorticoids in early pregnancy.

BACKGROUND Despite extensive studies of the developmental consequences of increased glucocorticoid exposure in mid- to late pregnancy, relatively little is known regarding the significance of glucocorticoids in early pregnancy. The objective of this review was to consider potential roles for this family of corticosteroids that might relate to early pregnancy. METHODS Although this is a narrat...

متن کامل

A Case of Cushing’s Syndrome in Pregnancy

Cushing’s syndrome (CS) occurs rarely during pregnancy. CS can be caused by prolonged abnormal exposure to excess glucocorticoids leading to special and significant signs and symptoms. It is often difficult to diagnose pathological hypercortisolism in pregnant women since some symptoms of the disease might be due to a complicated pregnancy, including preeclampsia or gestational diabetes. In thi...

متن کامل

Metabolism of synthetic steroids by the human placenta.

Pregnant women with asthma are frequently exposed to synthetic glucocorticoids and glucocorticoids are known to reduce fetal growth. The fetus is normally protected from the harmful effects of maternally derived glucocorticoids by the placental enzyme 11beta-hydroxysteroid dehydrogenase type 2 (11beta-HSD2). Whether 11beta-HSD2 inactivates the synthetic glucocorticoids used for asthma treatment...

متن کامل

Low-pressure headache presenting in early pregnancy with dramatic response to glucocorticoids: a case report

INTRODUCTION Obstetricians are familiar with postural headaches in their postpartum patients following spinal or epidural anaesthesia. The rare occurrence in the antepartum patient without inciting event, may pose a diagnostic and treatment dilemma with resultant prolongation of disabling headaches in affected patients. Awareness of this condition, if accurately diagnosed, may allow for earlier...

متن کامل

The effect of stress and glucocorticoids on modulation of pain in mice: Interaction with activation of voltage dependent Ca2+ channel

Previous studies indicated that stress and glucocorticoids have modulatory effects on acute pain. The aim of present study was to determine the interaction between stress and glucocorticoids with activation of voltage dependent Ca2+ channel on modulation of acute pain in mice. Male albino mice (25-30 g) were used for this experiment. Tail flick and hot plate were used for evaluation of analgesi...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • Current pharmaceutical biotechnology

دوره 12 5  شماره 

صفحات  -

تاریخ انتشار 2011