Selenium in pregnancy: effect of maternal drinking

Area of Science:

• Biochemistry
• Public Health
• Obstetrics

Background:

• Selenium is an essential trace element crucial for various physiological functions.
• Alcohol consumption during pregnancy is a significant public health concern with known adverse effects on fetal development.
• Maternal nutritional status, including selenium levels, may influence pregnancy outcomes.

Purpose of the Study:

• To investigate the relationship between alcohol consumption during pregnancy and maternal and fetal serum selenium concentrations.
• To determine if heavy alcohol intake affects selenium levels differently than moderate intake or abstinence.
• To assess selenium levels in infants born with fetal alcohol syndrome.

Main Methods:

• Serum selenium concentrations were measured in pregnant women with varying levels of alcohol consumption (abstinent, moderate, heavy) and nonpregnant controls.
• Measurements were taken throughout pregnancy and in umbilical cord serum.
• Infants born to mothers who drank heavily were assessed for fetal alcohol syndrome.

Main Results:

• In abstinent pregnant women, serum selenium decreased with gestational age.
• Moderate alcohol consumption did not alter this pattern.
• Heavy maternal drinking was associated with higher maternal selenium levels and significantly lower umbilical cord serum selenium levels.
• Mothers of infants with fetal alcohol syndrome exhibited higher selenium levels compared to abstinent controls.

Conclusions:

• Heavy alcohol consumption during pregnancy is linked to altered maternal and fetal selenium homeostasis.
• Increased maternal selenium and decreased umbilical selenium may be indicators or consequences of heavy alcohol exposure in utero.
• Further research is warranted to understand the clinical implications of these selenium level changes in fetal alcohol syndrome.