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Related Concept Videos

Aquaporins01:25

Aquaporins

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Aquaporins or AQPs are a family of integral membrane proteins whose primary function is to transport water, while some called aquaglyceroporins also transport glycerol. In addition, aquaporins have also been suspected to be involved in transporting volatile substances, such as carbon dioxide and ammonia, across membranes. Such AQPs that act as gas channels are often highly expressed in cells involved in the gaseous exchange, such as red blood cells, epithelial cells, and pulmonary capillaries.
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Fetal Circulation01:14

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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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Development of Blood Vessels01:07

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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.
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Reabsorption and Secretion in the DCT and Collecting Duct01:26

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The early phase of the DCT manages the reabsorption of approximately 10-15% of filtered water, 5–10% of filtered sodium, and 5–10% of filtered chloride. This process is facilitated by Na+–Cl− symporters in apical membranes and sodium-potassium pumps, as well as Cl− leakage channels in basolateral membranes. The early DCT also stands out as a site where parathyroid hormone (PTH) stimulates calcium reabsorption, depending on the body's requirements.
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Development of the Heart01:27

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The development of the human heart, a crucial organ, commences from the mesoderm on the 18th or 19th day after fertilization. This process initiates in the cardiogenic area, a group of mesodermal cells at the embryo's head end, which evolves into elongated strands known as cardiogenic cords. These cords undergo a transformation to form hollow-centered endocardial tubes.
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Physiology of the Genitourinary System II: Tubular Reabsorption and Secretion01:22

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The kidneys maintain homeostasis through filtration, reabsorption, and secretion. Tubular reabsorption and secretion are crucial in forming urine and regulating electrolytes, water balance, and waste elimination.Tubular Reabsorption and Secretion ProcessesTubular reabsorption is the process that reclaims essential substances such as electrolytes, glucose, amino acids, and water from the glomerular filtrate back into the bloodstream. This is achieved through passive and active transport...
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Aquaporins in Fetal Development.

Nora Martínez1, Alicia E Damiano2,3

  • 1Laboratorio de Biología de la Reproducción, Instituto de Fisiología y Biofísica Bernardo Houssay (IFIBIO)- CONICET- Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina.

Advances in Experimental Medicine and Biology
|March 5, 2017
PubMed
Summary
This summary is machine-generated.

Aquaporins (AQPs) are vital for maintaining water balance during pregnancy. Further research is needed to fully understand the role of these water channels in fetal development and overall pregnancy health.

Keywords:
AquaporinFetal developmentWaterWater channel

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Area of Science:

  • Physiology
  • Developmental Biology
  • Molecular Biology

Background:

  • Water homeostasis is critical for fetal development and successful pregnancy.
  • The placenta plays a key role in maintaining fetal growth and physiological balance.
  • Aquaporins (AQPs) are integral membrane proteins facilitating water transport.

Purpose of the Study:

  • To investigate the expression and potential roles of aquaporins (AQPs) during fetal development.
  • To explore the involvement of AQPs in maintaining amniotic fluid volume and water handling in fetal organs.
  • To elucidate the functional significance of AQPs in normal pregnancy and fetal growth.

Main Methods:

  • Expression analysis of aquaporins (AQPs) across various stages of pregnancy, from blastocyst to term.
  • Examination of placental and fetal membrane tissues.
  • Literature review on the proposed functions of AQPs in mammalian reproduction.

Main Results:

  • Aquaporin (AQP) expression was detected from the blastocyst stage through to the term placenta and fetal membranes.
  • AQPs are implicated in critical functions including normal pregnancy, fetal growth, and amniotic fluid homeostasis.
  • Evidence suggests AQPs are involved in water handling within various fetal organs.

Conclusions:

  • Aquaporins (AQPs) are expressed throughout pregnancy, suggesting a significant role in fetal development.
  • The functional importance of aquaporins (AQPs) in fetal development requires further investigation.
  • Understanding AQP function is crucial for comprehending water balance during pregnancy.