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Author Spotlight: Studying the Impact of Maternal Dietary Deficiencies on Long-Term Offspring Health Outcomes
Published on: June 28, 2024
Serum Folate, Red Blood Cell Folate, and Zinc Serum Levels Are Related with Gestational Weight Gain and Offspring's
Reyna Sámano1, Hugo Martínez-Rojano2,3, Gabriela Chico-Barba1
1Coordinación de Nutrición y Bioprogramación, Instituto Nacional de Perinatología, Secretaría de Salud, México City 11000, Mexico.
Insights
Low levels of serum folate, red blood cell folate, and serum zinc in adolescent mothers are linked to inadequate gestational weight gain and smaller babies. These nutritional deficiencies and suboptimal weight gain are common in this population.
Area of Science:
- Maternal-fetal medicine
- Nutritional science
- Adolescent health
Background:
- Gestational weight gain outside Institute of Medicine recommendations is linked to adverse perinatal outcomes.
- Limited research exists on folate and zinc status in relation to gestational weight gain in adolescents.
- Maternal zinc deficiency is associated with adverse pregnancy outcomes, including impaired immunity and restricted fetal growth.
Purpose of the Study:
- To investigate the association between serum zinc, serum folate, and red blood cell folate concentrations and gestational weight gain in Mexican adolescents.
- To examine the relationship between these nutrient levels and newborn size (weight and length).
Main Methods:
- Cross-sectional study of 406 adolescent-neonate dyads in Mexico City.
- Analysis of serum and red blood cell folate, and serum zinc concentrations.
- Assessment of gestational weight gain adequacy and infant size for gestational age.
Main Results:
- Insufficient gestational weight gain occurred in 38.4% of adolescents; excessive gain in 36.7%.
- Low serum folate, red blood cell folate, and serum zinc were associated with insufficient gestational weight gain.
- Reduced serum zinc was linked to an increased probability of delivering a small for gestational age infant (20.9% of sample).
Conclusions:
- Low serum folate, red blood cell folate, and serum zinc are associated with suboptimal gestational weight gain and small for gestational age infants in adolescents.
- Both inadequate and excessive gestational weight gain, and delivering small for gestational age infants, are prevalent among adolescent mothers in this cohort.
Background:
Gestational weight gain below or above the Institute of Medicine recommendations has been associated with adverse perinatal and neonatal outcomes. Very few studies have evaluated the association between serum and red blood cell folate concentrations and gestational weight gain in adolescents. Additionally, zinc deficiency during pregnancy has been associated with impaired immunity, prolonged labor, preterm and post-term birth, intrauterine growth restriction, low birth weight, and pregnancy-induced hypertension.
Objective:
The purpose of our study is to evaluate the association between serum concentrations of zinc, serum folate, and red blood cell folate, with the increase in gestational weight and the weight and length of the newborn in a group of adolescent mothers from Mexico City.
Results:
In our study, 406 adolescent-neonate dyads participated. The adolescents' median age was 15.8 years old. The predominant socioeconomic level was middle-low (57.8%), single (57%), 89.9% were engaged in home activities, and 41.3% completed secondary education. Excessive gestational weight gain was observed in 36.7% of cases, while insufficient gestational weight gain was noted in 38.4%. Small for gestational age infants were observed in 20.9% of the sample. Low serum folate (OR 2.1, 95% CI 1.3-3.3), decreased red blood cell folate (OR 1.6, 95% CI 1.0-2.6), and reduced serum zinc concentrations (OR 3.3, 95% CI 2.1-5.2) were associated with insufficient gestational weight gain. Decreased serum zinc levels (OR 1.2, 95% CI 1.2-3.4) were linked to an increased probability of delivering a baby who is small for their gestational age.
Conclusions:
Low serum folate, red blood cell folate, and serum zinc concentrations were associated with gestational weight gain and having a small gestational age baby. Both excessive and insufficient gestational weight gain, as well as having a small gestational age baby, are frequent among adolescent mothers.
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