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Related Concept Videos

Fetal Circulation01:14

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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Pathophysiology of Diabetes

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Teratogenicity01:07

Teratogenicity

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Hormonal Regulation

The renin-aldosterone system is an endocrine system which guides the renal absorption of water and electrolytes, thus managing blood pressure and osmoregulation. Activation of the system begins in the kidneys with a small cluster of cells adjacent to the afferent and efferent blood vessels of the renal corpuscle. As the nephrons are filtering blood, juxtaglomerular cells monitor blood pressure. If they detect a decrease in pressure, they release the hormone renin into the bloodstream.
Mitral Valve Prolapse III: Nursing Management01:19

Mitral Valve Prolapse III: Nursing Management

The nursing management of Mitral Valve Prolapse, or MVP, centers around patient education, symptom monitoring, and lifestyle modifications.Patient Education on MVP Diagnosis and Heredity: Nurses should provide comprehensive education about MVP, a condition where the mitral valve does not close appropriately during heartbeats. This education often includes the condition's pathophysiology, symptoms, and potential complications, like arrhythmias or mitral regurgitation. Though not fully...
Obesity01:24

Obesity

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Related Experiment Video

Updated: May 14, 2026

A Primary Human Trophoblast Model to Study the Effect of Inflammation Associated with Maternal Obesity on Regulation of Autophagy in the Placenta
11:44

A Primary Human Trophoblast Model to Study the Effect of Inflammation Associated with Maternal Obesity on Regulation of Autophagy in the Placenta

Published on: September 27, 2017

Chorionic plate arterial function is altered in maternal obesity.

C E Hayward1, L Higgins, E J Cowley

  • 1Maternal and Fetal Health Research Centre, Institute of Human Development, University of Manchester, Manchester Academic Health Science Centre, St. Mary's Hospital, Central Manchester University Hospitals NHS Foundation Trust, Manchester M13 9WL, United Kingdom. Christina.Hayward@manchester.ac.uk

Placenta
|January 31, 2013
PubMed
Summary
This summary is machine-generated.

Maternal obesity impairs placental artery function, reducing nutrient transport. Leptin exposure affected artery function but did not fully replicate obesity-related changes in Chorionic Plate Arteries (CPA).

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Area of Science:

  • Reproductive biology
  • Vascular physiology
  • Maternal-fetal medicine

Background:

  • Maternal obesity is a growing concern impacting pregnancy outcomes.
  • Placental vascular function is crucial for fetal development.
  • Chorionic Plate Arteries (CPA) play a key role in placental circulation.

Purpose of the Study:

  • To characterize CPA function in maternal obesity.
  • To investigate if leptin exposure mimics the obese CPA phenotype in normal-BMI women.

Main Methods:

  • Assessed CPA responses to vasoconstrictors (U46619) and vasodilators (SNP) in placentas from normal and obese BMI women.
  • Examined CPA tone oscillations before and after leptin incubation.
  • Quantified dose-response curves, maximum response, and sensitivity.

Main Results:

  • Reduced vasodilatation to SNP in obese women compared to normal-BMI women.
  • Leptin incubation altered CPA responses to U46619 in both BMI groups.
  • Vasomotor responses were not significantly affected by leptin in obese women.

Conclusions:

  • Maternal obesity is linked to altered placental vascular function, potentially risking fetal development.
  • Leptin affects CPA function but does not fully reproduce the functional changes seen in maternal obesity.