Related Experiment Video
Updated: May 6, 2026
Investigating Protein-protein Interactions in Live Cells Using Bioluminescence Resonance Energy Transfer
Published on: May 26, 2014
FOXP2 Expression and Oral Feeding Success in Preterm Infants: Sex 2 Differences
Leonardo Henrique Ferreira Gomes1, Andressa Brito Marques2, Isabel Cristina de Meireles Dias2
1Laboratório de Alta Complexidade, Unidade de Pesquisa Clínica, Instituto Nacional da Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira-Fundação Oswaldo Cruz, Rio de Janeiro 22250-020, Brazil.
Insights
FOXP2 gene expression in premature infants, especially in females, is linked to better oral feeding readiness. This finding suggests FOXP2 as a potential biomarker for improving neonatal care and infant outcomes.
Area of Science:
- Genetics and Molecular Biology
- Neonatal Medicine
- Developmental Biology
Background:
- The FOXP2 gene is vital for speech and motor functions and shows sex-specific expression patterns.
- Elevated FOXP2 expression in premature infants, particularly females, correlates with enhanced oral feeding readiness.
- This suggests FOXP2's potential role in improving neonatal care for feeding difficulties.
Purpose of the Study:
- To investigate FOXP2 gene expression in premature newborns across five feeding stages.
- To analyze sex differences in FOXP2 expression and their impact on oral feeding readiness.
- To refine neonatal clinical protocols for feeding support in preterm infants.
Main Methods:
- Saliva-derived RNA was collected from 45 premature newborns across five feeding stages.
- FOXP2 gene expression was quantified using RT-qPCR and the delta-delta Ct (ΔΔCt) method.
- A total of 225 samples were analyzed to assess gene expression levels.
Main Results:
- FOXP2 expression significantly increased through feeding stages, peaking during full oral feeding.
- Female infants consistently exhibited higher FOXP2 expression levels compared to males.
- Significant sex differences in FOXP2 expression were observed starting from feeding stage 2, with females showing 58% higher expression by stage 5.
Conclusions:
- FOXP2 gene expression is associated with improved neuromuscular coordination and oral feeding readiness in preterm infants.
- Sex-specific differences in FOXP2 expression highlight its potential as a non-invasive biomarker for predicting feeding readiness.
- This research could lead to enhanced neonatal care, improved clinical outcomes, and reduced hospital stays for preterm infants.
Background:
The FOXP2 gene, crucial for speech and motor functions, exhibits sex-specific expression differences. In premature infants, elevated FOXP2 expression, particularly in females, correlates with improved oral feeding readiness, indicating the potential for enhancing neonatal care.
Objective:
This study investigates FOXP2 gene expression in premature newborns across five feeding stages using salivary RNA, focusing on sex differences and their impact on oral feeding readiness to refine neonatal clinical protocols.
Methods:
FOXP2 expression was analyzed using RT-qPCR and the ΔΔCt method across five feeding stages in 45 premature newborns using saliva-derived RNA (n = 225).
Results:
FOXP2 expression increased significantly through feeding stages, especially in full oral feeding. Female infants showed consistently higher expression levels than males, with 58% higher expression by stage 5. Significant sex differences were apparent from stage 2.
Conclusions:
FOXP2 expression impacts neuromuscular coordination and feeding readiness in preterm infants. The sex differences suggest that FOXP2 could serve as a non-invasive biomarker for predicting oral feeding readiness, potentially improving clinical outcomes.
Perspectives:
FOXP2 gene expression correlates with better oral feeding readiness in premature infants and may serve as a non-invasive biomarker to improve neonatal care. The study could enhance neonatal care, leading to improved outcomes and reduced hospital stays for preterm infants.
