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Related Experiment Video

Updated: Jun 11, 2026

Assessment of Maternal Vascular Remodeling During Pregnancy in the Mouse Uterus
06:55

Assessment of Maternal Vascular Remodeling During Pregnancy in the Mouse Uterus

Published on: December 5, 2015

Changes in placental size during Ramadan.

S H Alwasel1, Z Abotalib, J S Aljarallah

  • 1Fetal Programming of Diseases Research, Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia. sawasel10@hotmail.com

Placenta
|July 13, 2010
PubMed
Summary
This summary is machine-generated.

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Fetal Circulation

Fetal circulation is a unique system that facilitates the exchange of gases, nutrients, and waste products between the developing fetus and the mother. This intricate process takes place through a special organ called the placenta.
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Ramadan fasting in Saudi Arabia is linked to slower placental growth and reduced placental weight. This suggests altered fetal programming with potential long-term health implications for newborns.

Area of Science:

  • Obstetrics and Gynecology
  • Maternal-Fetal Medicine
  • Developmental Biology

Background:

  • Placental growth is influenced by maternal factors.
  • Ramadan involves significant dietary and physical activity changes for pregnant women in Saudi Arabia.
  • The impact of Ramadan on placental development is not well understood.

Purpose of the Study:

  • To investigate the effects of Ramadan lifestyle changes on placental development in Saudi Arabian pregnant women.
  • To analyze birth weight, placental weight, and placental-to-birth weight ratios in relation to Ramadan observance.

Main Methods:

  • Retrospective analysis of 7083 birth records from Saudi nationals in Unizah.
  • Data collected included birth weight, placental weight, and gestational age.

Related Experiment Videos

Last Updated: Jun 11, 2026

Assessment of Maternal Vascular Remodeling During Pregnancy in the Mouse Uterus
06:55

Assessment of Maternal Vascular Remodeling During Pregnancy in the Mouse Uterus

Published on: December 5, 2015

  • Comparison of placental metrics for babies gestating during Ramadan versus those not.

    • Main Results:

    • Mean placental weight and placental-to-birth weight ratio were lower compared to non-Ramadan periods.
    • Babies in the second or third trimester during Ramadan showed significantly lower mean placental weight and ratio.
    • This effect was observed in both male and female infants, with statistically significant differences.

    Conclusions:

    • Placentas adapt to maternal nutrient availability, with Ramadan further slowing growth but potentially increasing efficiency.
    • Lifestyle changes during Ramadan, possibly beyond fasting, impact placental growth.
    • Altered placental growth during Ramadan may have implications for fetal programming and long-term health.