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Higher expression of HSP70 and LOX-1 in the placental tissues of pre-eclampsia pregnancies.
MedLine Citation:
PMID:  24786389     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Abstract Background: Pre-eclampsia, a hypertensive disorder of pregnancy is the main cause of fetal and maternal morbidity and mortality. Growing evidences suggest that placental oxidative stress involves in the pathogenesis of pre-eclampsia. The HSP70 is a novel marker of oxidative stress which binds with high avidity to LOX-1. The aim of this study was to evaluate the co-expression of HSP70 and LOX-1 in the placental tissues of normotensive and pre-eclamptic pregnancies. Materials and methods: The placental tissues were collected from 35 healthy women with normal pregnancies and 33 women with pre-eclampsia disorder. Expression of HSP70 and LOX-1 on the placental tissues was examined by using immunohistochemistry technique. The intensity of the molecules' expression was determined by semi-quantitative scoring. Results: The 34.3% and 37.1% of the healthy women did not express the HSP70 and LOX-1 on their placenta, respectively. All pre-eclamptic patients expressed HSP70 and LOX-1 with various scores. Indeed, the majority of the pre-eclamptic subjects had ≥3+ scores of the expression of HSP70 and LOX-1 on their placenta (60.6% and 66.7%, respectively). The percentage of the ≥3+ scores of the expression of HSP70 and LOX-1 was significantly higher in patients than those in healthy women (p < 0.0001 for both). Similarly, the majority of the pre-eclamptic subjects had ≥3+ scores of the co-expression of HSP70 and LOX-1 molecules (57.6%) which was significantly higher in patients than those in control group (p = 0.0001). Conclusions: These results showed higher expression of HSP70 and LOX-1 in the placental tissues of pre-eclampsia patients which represent the possible contribution of these molecules in the disease pathogenesis. Further studies need to clarify their role in the pathogenesis of preeclampsia disorder.
Authors:
Abdolkarim Sheikhi; Sara Razdar; Haleh Rahmanpour; Nouraddin Mousavinasab; Hossein Barzegar Ganji; Abdollah Jafarzadeh
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-4-30
Journal Detail:
Title:  Clinical and experimental hypertension (New York, N.Y. : 1993)     Volume:  -     ISSN:  1525-6006     ISO Abbreviation:  Clin. Exp. Hypertens.     Publication Date:  2014 Apr 
Date Detail:
Created Date:  2014-5-2     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9305929     Medline TA:  Clin Exp Hypertens     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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