Background: Maternal agonistic autoantibodies against the angiotensin II type 1 receptor (AT1-AAs) have been implicated in the pathophysiology of preeclampsia, but their presence in their offsprings and their possible neonatal effects have not been specifically explored. This prospective study aimed to evaluate the presence of AT1-AAs and their potential clinical effects in neonates of AT1-AAs positive mothers.
Methods: Women with preeclampsia and their neonates were included. Blood samples were collected in order to search for AT1-AAs.
Results: AT1-AA determination was positive in 35 out of 64 of the studied women (54.7%). Thirty one newborns from the group of AT1-AA positive women were included and 22 (71%) were AT1-AA positive. The mothers' and children's AT1-AAs titers were significantly correlated. The 33 newborns from the group of AT1-AA negative women were all negative for AT1-AAs. Regarding the clinical data of newborns (birth weight, percentile of weight, gestational age, Apgar score at five minutes, mechanical or noninvasive ventilation), no significant difference was observed between the children with or without detected AT1-AAs.
Conclusion: Even though AT1-AAs are detected in newborns of positive mothers during the first days of life, no specific clinical signs seem to be associated with the presence of these antibodies.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11697507 | PMC |
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