Impaired Intrauterine Growth in the Context of Maternal Hookworm Infection During Gestation

Area of Science:

• Tropical medicine
• Maternal and child health
• Nutritional epidemiology

Background:

• Hookworm infection is a global health issue linked to adverse nutritional and developmental outcomes.
• Understanding the specific impacts of maternal infections on offspring is crucial for targeted interventions.

Purpose of the Study:

• To investigate the association between maternal hookworm infection and birth outcomes in a Philippine cohort.
• To explore potential sex-specific differences in these associations.

Main Methods:

• Cohort study of women in Leyte, Philippines.
• Analysis of birth outcomes including birth weight, head circumference, and placental surface area.
• Measurement of cord blood biomarkers: insulin-like growth factor 2 (IGF-2) and adiponectin.

Main Results:

• Maternal hookworm infection was associated with poorer intrauterine growth in male offspring only.
• Male neonates exhibited lower birth weight, head circumference, and placental surface area.
• Male neonates had elevated cord blood IGF-2 and reduced adiponectin levels.

Conclusions:

• Maternal hookworm infection during pregnancy may have sex-specific nutritional impacts on fetal development.
• Findings suggest differential effects on male and female offspring, highlighting the need for sex-stratified analysis in parasitic infection research.