Publications by authors named "S L Narasimhan"

Background: Longer duration of deferred cord clamping (DCC), at least 120 s, is associated with the highest reduction in mortality compared to shorter durations of DCC or immediate cord clamping in preterm infants. We compared the neonatal outcomes of very preterm infants who received at least 60 s to those who received at least 120 s of DCC.

Methods: This is a retrospective single-center study including preterm infants born <33 weeks of gestational age (GA) between 2014 and 2019.

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Objective: We previously found that per- and polyfluoroalkyl substances (PFAS) mixture exposure is inversely associated with SARS-CoV-2 IgG (IgG) antibody levels in pregnant individuals. Here, we aim to identify metabolites mediating this relationship to elucidate the underlying biological pathways.

Methods: We included 59 pregnant participants from a US-based pregnancy cohort.

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Oxygen is a fundamental requirement for cellular metabolism. Hypoxia is a state of oxygen deprivation of the tissues. Cells develop numerous adaptive mechanisms to survive hypoxic insult.

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This study assessed the relationships between emotional intimate partner violence (IPV) before, during, and after pregnancy and postpartum contraceptive use. We used 2016-2021 Pregnancy Risk Assessment Monitoring System data from seven sites ( = 30,125). We used multivariable logistic regression to assess indicators of emotional IPV and provider counseling associated with postpartum contraceptive use.

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