Document Detail

Reduced expression of corticotropin-releasing hormone receptor type-1 alpha in human preeclamptic and growth-restricted placentas.
MedLine Citation:
PMID:  12519878     Owner:  NLM     Status:  MEDLINE    
Placentally derived CRH seems to play a major role in the mechanisms controlling human pregnancy and parturition, via activation of specific receptors widespread in reproductive tissues. In the human placenta, CRH seems to modulate vasodilation, prostaglandin production, and ACTH secretion. It has also been suggested that CRH might act as a placental clock, determining the length of gestation. In addition, maternal plasma CRH concentrations are further elevated in pregnancies associated with abnormal placental function, such as preeclampsia and intrauterine growth retardation (IUGR). In this study, we sought to investigate the expression of CRH-R1 alpha levels in placentas from women who have undergone normal deliveries (control group) and patients who have been diagnosed as having preeclampsia or IUGR. Results showed that placental CRH-R1 alpha mRNA levels (as shown by quantitative RT-PCR) and protein levels (shown by Western blotting analysis) were significantly (P < 0.05) reduced in all of the complicated pregnancies. In contrast, levels of the angiotensin II receptor were elevated in preeclampsia and reduced in IUGR subjects, as shown by RT-PCR and Western blotting analysis. These findings might suggest that changes in receptor expression may contribute toward dysregulation of the dynamic balance controlling vascular resistance.
E Karteris; A Goumenou; E Koumantakis; E W Hillhouse; D K Grammatopoulos
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Journal of clinical endocrinology and metabolism     Volume:  88     ISSN:  0021-972X     ISO Abbreviation:  J. Clin. Endocrinol. Metab.     Publication Date:  2003 Jan 
Date Detail:
Created Date:  2003-01-09     Completed Date:  2003-02-11     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0375362     Medline TA:  J Clin Endocrinol Metab     Country:  United States    
Other Details:
Languages:  eng     Pagination:  363-70     Citation Subset:  AIM; IM    
The Sir Quinton Hazel Research Centre for Molecular Medicine, Department of Biological Sciences, University of Warwick, Coventry CV4 7AL, United Kingdom.
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MeSH Terms
Blotting, Western
Computer Systems
Fetal Growth Retardation / metabolism*
Placenta / metabolism*
Pre-Eclampsia / metabolism*
RNA, Messenger / metabolism
Receptors, Corticotropin-Releasing Hormone / genetics,  metabolism*
Reverse Transcriptase Polymerase Chain Reaction
Reg. No./Substance:
0/CRF receptor type 1; 0/RNA, Messenger; 0/Receptors, Corticotropin-Releasing Hormone

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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