AI Article Synopsis
- * The research found that ADMA and SDMA levels were negatively correlated with labor duration in women with preeclampsia, meaning higher levels were linked to shorter labor.
- * These results suggest that the influence of arginines, rather than inflammation, may play a key role in the shorter labor duration observed in women experiencing preeclampsia.
Article Abstract
Background: Preeclampsia complicates 3-5% of all pregnancies and is associated with higher levels of asymmetric (ADMA) and symmetric (SDMA) dimethylarginines. Dimethylarginines are inhibitors of nitric oxide, which is a uterine smooth muscles relaxant. Women with hypertensive disorders experience a shorter labor duration compared to normotensive women. However, very little is known about the possible biochemical mechanisms behind differences in labor duration. In this study we aimed to investigate if women with preeclampsia had higher levels of arginines (ADMA, SDMA and L-arginine) at labor than controls, and also investigate the association between arginines and labor duration.
Methods: The study was based on data from the Swedish, Uppsala County population-based, prospective cohort BASIC, between 2009 and 2018. Arginines were analyzed by Ultra-High Performance Liquid Chromatography using plasma samples taken at labor from women with preeclampsia (n=47) and normotensive pregnancy (n=90). We also analyzed inflammation markers CRP, TNF-R1, TNF-R2 and GDF-15.
Results: Women with preeclampsia had higher levels of ADMA (p<0.001), SDMA (p<0.001), L-arginine (p<0.001), TNF-R1 (p<0.001), TNF-R2 (p=0.03) and GDF-15 (p<0.01) compared to controls. Further, ADMA and SDMA, not inflammation markers, were negatively correlated to labor duration in preeclampsia. No correlations were observed when comparing arginines and inflammation markers.
Conclusions: Among women with preeclampsia, our novel findings of higher level of arigines, negative correlation of arginines to duration of labor and absence of correlation of arginines to inflammation markers might support the theory that it is not inflammation but arginines which could be associated with shorter duration of labor in preeclampsia.
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| http://dx.doi.org/10.1093/ajh/hpae131 | DOI Listing |
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