Perinatal Vaccination by Transamniotic Fetal mRNA Delivery: Immunization Against Human Cytomegalovirus in a Rodent Model.

Purpose: Gestational cytomegalovirus (CMV) infection is a prevalent disease with significant fetal and neonatal morbidity. MRNA vaccines have emerged as powerful options for postnatal immunization against infections. It has been shown that mRNA delivered into the amniotic fluid reaches the fetal circulation via the placenta.

Transamniotic Delivery of Surfactant Protein B mRNA in a Healthy Model.

Introduction: We sought to determine whether exogenous surfactant protein B (SPB) mRNA could be incorporated and translated by the fetal lung after simple transamniotic administration.

Methods: Fetuses (n = 149) of twelve time-dated dams underwent intra-amniotic injections of either human SPB (hSPB) mRNA encapsulated into lipopolyplex (mRNA, n = 99) or lipopolyplex without mRNA (control; n = 50) on gestational day 17 (E17, term = E21-22). Lungs were screened for hSPB by enzyme-linked immunosorbent assay daily until term.

Comparative Effects on Fetal Hematopoiesis and Placental Inflammation From Mesenchymal and Hematopoietic Stem Cells as Agents of Transamniotic Stem Cell Therapy (TRASCET) in a Syngeneic Model of Intrauterine Growth Restriction.

Purpose: We compared transamniotic stem cell therapy (TRASCET) using either mesenchymal (MSCs) or hematopoietic (HSCs) stem cells on fetal hematopoiesis in a syngeneic model of intrauterine growth restriction (IUGR).

Methods: Lewis dams exposed to cycling hypoxia (10.5% O) in late gestation had their fetuses (n = 83) either receiving no intervention (untreated; n = 9), or intra-amniotic injections of either HSCs (HSC; n = 34), MSCs primed to an enhanced anti-inflammatory phenotype (primed-MSC; n = 28), or saline (sham; n = 12).

The invisible scars: Unseen financial complications worsen every aspect of long-term health in trauma survivors.

Background: Trauma survivors are susceptible to experiencing financial toxicity (FT). Studies have shown the negative impact of FT on chronic illness outcomes. However, there is a notable lack of data on FT in the context of trauma.

Delivery of essential pediatric congenital surgical care within Brazil's universal health coverage system: a national survey of pediatric surgeons.

Objective: In this study, we assess the delivery of congenital pediatric surgical care under Brazil's system of universal health coverage and evaluate differences in delivery between public and private sectors.

Methods: A cross-sectional national survey of pediatric surgeons in Brazil was conducted. Participants were asked which of 23 interventions identified through the they perform and to report barriers faced while providing surgical care.