Placental morphometric and morphologic alterations in maternal undernutrition

Area of Science:

• Obstetrics and Gynecology
• Nutritional Science
• Perinatal Medicine

Background:

• Maternal nutrition is crucial for fetal development.
• Socioeconomic factors significantly influence dietary intake and health outcomes.
• Placental morphology can reflect maternal health status.

Purpose of the Study:

• To investigate the effects of maternal undernutrition on placental morphometrics and gross morphology.
• To assess the relationship between socioeconomic status, dietary intake, and placental characteristics.
• To evaluate the impact on neonate birth weight.

Main Methods:

• Comparative analysis of placentas, mothers, and neonates across different socioeconomic groups.
• Measurement of maternal caloric and protein intake.
• Assessment of placental morphometric parameters (weight, volume, surface area, cotyledon number) and gross morphology.
• Evaluation of neonate birth weight.

Main Results:

• Significant decreases in birth weight, placental weight, volume, surface area, and cotyledon number were observed with declining socioeconomic status and maternal dietary intake.
• Placentas from higher socioeconomic groups showed a higher incidence of well-defined cotyledons and central cord attachment.
• Hemorrhages were significantly more frequent in placentas from lower socioeconomic groups and in small-for-dates neonates.
• No significant differences in placental infarcts, calcifications, or degeneration were found across groups.

Conclusions:

• Maternal undernutrition, linked to lower socioeconomic status, adversely affects placental development and fetal growth.
• Specific placental features, like cotyledon definition and cord attachment, are associated with better nutritional status.
• Increased placental hemorrhages in lower socioeconomic groups indicate potential complications related to undernutrition.