Related Experiment Video
Updated: Nov 3, 2025

06:55
Assessment of Maternal Vascular Remodeling During Pregnancy in the Mouse Uterus
Published on: December 5, 2015
13.8K
Uterine Vascular Control Preconception and During Pregnancy
Sara B Fournier1, Jeanine N D'Errico2, Phoebe A Stapleton1,2
1Environmental and Occupational Health Sciences Institute, Piscataway, New Jersey, USA.
Comprehensive Physiology
|June 1, 2021
Summary
Adequate uterine blood flow and vascular remodeling are crucial for successful pregnancy. This review details the physiological adaptations and local mediators involved in uterine vascular responsivity during gestation.
Area of Science:
- Physiology
- Reproductive Biology
- Vascular Biology
Background:
- Successful pregnancy requires adequate uterine blood flow, placental perfusion, and vascular responsiveness to meet fetal demands.
- Key adaptations include systemic changes and endometrial preparation via decidualization, implantation, and trophoblast invasion.
Purpose of the Study:
- To review current knowledge on vascular remodeling and responsivity during uterine preparation and pregnancy.
- To focus on maternal cardiovascular and uterine modifications, implantation, and placentation.
Main Methods:
- Literature review of physiological adaptations during pregnancy.
- Focus on endocrine signaling and local uteroplacental mediators.
Main Results:
- Pregnancy involves complex maternal cardiovascular and uterine adaptations.
- Endometrial decidualization, trophoblast invasion, and spiral artery remodeling are critical for successful placentation.
- Local uterine regulatory mechanisms and vascular reactivity are essential for supporting fetal development.
Conclusions:
- Proper vascular remodeling and responsivity are fundamental for a healthy pregnancy.
- Dysfunction in these vascular processes can lead to pathological consequences during pregnancy.
Related Concept Videos
Development of Blood Vessels
1000
The development of the vascular system in a fetus is a complex and intricate process that begins as early as 15 to 16 days post-conception. This process starts outside the embryo, specifically in the mesoderm of the yolk sac, chorion, and connecting stalk. Approximately two days later, the formation of blood vessels occurs within the embryo itself.
The initial formation of this system is facilitated by the small amount of yolk present in the ovum and yolk sac. Blood vessels originate from...
The initial formation of this system is facilitated by the small amount of yolk present in the ovum and yolk sac. Blood vessels originate from...
1000
Uterine Tubes
1.4K
The uterine or fallopian tubes function as the conduit through which oocytes travel from the ovaries to the uterus. Each fallopian tube measures approximately 10 to 13 cm long and is anatomically divided into the infundibulum, ampulla, isthmus, and interstitial part (or intramural segment). The infundibulum is characterized by its funnel shape and features extensions called fimbriae which reach towards the peritoneal cavity. These fimbriae play a critical role during ovulation as they extend...
1.4K
Fetal Circulation
1.8K
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.
Two umbilical arteries transport blood from the fetus to the placenta. At the placenta, the blood absorbs oxygen and nutrients while simultaneously eliminating waste products. This oxygen-enriched and nutrient-rich blood then returns to the fetus through one...
Two umbilical arteries transport blood from the fetus to the placenta. At the placenta, the blood absorbs oxygen and nutrients while simultaneously eliminating waste products. This oxygen-enriched and nutrient-rich blood then returns to the fetus through one...
1.8K
Uterus and Cervix
2.7K
The uterus, commonly called the womb, is a vital reproductive organ in females designed to provide a nurturing environment for the implantation and growth of an embryo. It is shaped like a hollow pear and positioned between the urinary bladder and the rectum. The uterus's structure allows it to support and protect a developing fetus throughout pregnancy.
The uterus is securely anchored within the pelvic cavity by paired broad ligaments on either side. It is further stabilized by three pairs...
The uterus is securely anchored within the pelvic cavity by paired broad ligaments on either side. It is further stabilized by three pairs...
2.7K
Regulation of Angiogenesis and Blood Supply
3.0K
Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits. Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl...
3.0K
Ovarian Cycle
2.4K
The menstrual cycle includes a critical component known as the ovarian cycle, which undergoes two main phases each month—the follicular phase and the luteal phase. The follicular phase is variable and averaging around 14 days. Ovulation, triggered by a surge in luteinizing hormone (LH), marks the transition between the two phases. The second phase, the luteal phase, is relatively consistent, lasting approximately 14 days, and is marked by the activity of the corpus luteum. While a cycle...
2.4K

