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Background & objectives

Striatin is a multi-domain scaffolding protein essential for activating endothelial nitric oxide synthase (eNOS). However, its role in pre-eclampsia remains use explored. Hence, this study aimed to investigate the association between striatin and eNOS in regulating nitric oxide (NO) production in the placenta of women with and without pre-eclampsia.

Methods

Forty pregnant women each without (controls) and with pre-eclampsia (cases) were enrolled in the study. Blood striatin and NO concentrations were detected by the ELISA. Protein expression of striatin, phosphorylated eNOS (peNOS), inducible NOS (iNOS) and phosphorylated NF-κB were measured in the placental tissues by Western blot. Twenty four hour urinary protein and serum urea, uric acid and creatinine were analyzed as an autoanalyzer. Placental histology was analyzed by haematoxylin and eosin staining. Results: Compared to normotensive pregnant women, the levels of serum NO and striatin were decreased in pre-eclamptic women. The protein expression of striatin and peNOS was significantly reduced (P<0.05) while p65NF-κB and iNOS were upregulated considerably (P<0.05) in the placenta of cases compared to controls.

Interpretation & conclusions

Our results show for the first time that decreased striatin expression was associated with decreased peNOS protein expression in the placental tissue of pre-eclamptic women. Interestingly, no significant difference was found in blood striatin or NO levels between controls and cases. Thus, therapies that improve placental striatin expression are attractive possibilities, both for prevention as well as treatment of endothelial dysfunction in pre-eclampsia."xsd:string
http://purl.uniprot.org/citations/37147942http://purl.org/dc/terms/identifier"doi:10.4103/ijmr.ijmr_1839_20"xsd:string
http://purl.uniprot.org/citations/37147942http://purl.uniprot.org/core/author"Vairappan B."xsd:string
http://purl.uniprot.org/citations/37147942http://purl.uniprot.org/core/author"Ram A.K."xsd:string
http://purl.uniprot.org/citations/37147942http://purl.uniprot.org/core/author"Chaturvedula L."xsd:string
http://purl.uniprot.org/citations/37147942http://purl.uniprot.org/core/author"Viveka M."xsd:string
http://purl.uniprot.org/citations/37147942http://purl.uniprot.org/core/date"2023"xsd:gYear
http://purl.uniprot.org/citations/37147942http://purl.uniprot.org/core/name"Indian J Med Res"xsd:string
http://purl.uniprot.org/citations/37147942http://purl.uniprot.org/core/pages"345-352"xsd:string
http://purl.uniprot.org/citations/37147942http://purl.uniprot.org/core/title"Placental expression of striatin & endothelial nitric oxide synthase in women with & without pre-eclampsia."xsd:string
http://purl.uniprot.org/citations/37147942http://purl.uniprot.org/core/volume"157"xsd:string
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