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Related Concept Videos

Cleavage and Blastulation01:33

Cleavage and Blastulation

After a large-single-celled zygote is produced via fertilization, the process of cleavage occurs while zygotes travel through the uterine tube. Cleavage is a mitotic cell division that does not result in growth. With each round of successive cell division, daughter cells get increasingly smaller.
Teratogenicity01:07

Teratogenicity

The ability of a drug to produce structural deformations and functional abnormalities in the developing embryo or the fetus is called teratogenicity, and the drug producing this effect is known as a teratogen. Teratogenic effects include stillbirth, miscarriage, intrauterine growth restriction, and neurocognitive delay. A teratogen may affect the embryo at different stages of development, which is important in determining the type and extent of the damage. During blastocyst formation, the early...
Development of Blood Vessels01:07

Development of Blood Vessels

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...
In Vitro Fertilization01:24

In Vitro Fertilization

In vitro fertilization (IVF) is a form of assisted reproductive technology where an egg is fertilized with sperm in a controlled laboratory environment before transferring the resulting embryo into the uterus. This process is designed to help individuals and couples experiencing difficulties conceiving.
The IVF process begins with ovarian stimulation, during which reproductive endocrinologists prescribe hormonal medications to stimulate the ovaries to produce multiple eggs instead of the single...
Zygotic Development And Stem Cell Formation01:10

Zygotic Development And Stem Cell Formation

The development of all multicellular organisms starts with the fusion of haploid cells called sperm and egg to form a diploid zygote. A zygote is a totipotent cell that can develop into a complete organism. The zygote undergoes cell division or cleavage to form an 8-cell mass. Until this stage, the cells are spherical, loosely attached, and remain totipotent. Totipotent cells are capable of developing both the embryonic and the extraembryonic tissues. However, as they continue to divide, they...
Ovarian Cycle01:27

Ovarian Cycle

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 length...

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Related Experiment Video

Updated: Jul 11, 2026

Establishment of an Embryo Implantation Model In Vitro
05:13

Establishment of an Embryo Implantation Model In Vitro

Published on: June 21, 2024

Implantation and early embryonic development: implications for pregnancy.

Danielle Vitiello1, Pasquale Patrizio

  • 1Yale University Fertility Center, Department of Obstetrics, Gynecology and Reproductive Sciences, New Haven, CT 06511, USA. pasquale.patrizio@yale.edu

Seminars in Perinatology
|September 11, 2007
PubMed
Summary

Successful embryo implantation is crucial for reproductive success. New methods like Multigate Spectral Doppler Analysis (MSDA) may help detect pregnancy complications early.

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Area of Science:

  • Reproductive medicine
  • Fetal development
  • Diagnostic imaging

Background:

  • Implantation is a critical determinant of reproductive outcomes, influenced by both embryo and endometrium.
  • Disruptions in implantation can lead to pregnancy complications and affect fetal development.
  • Conditions like preeclampsia and intrauterine growth restriction (IUGR) are linked to placental function.

Purpose of the Study:

  • To highlight the significance of implantation in reproductive success.
  • To underscore the role of placental function in fetal development and pregnancy complications.
  • To introduce Multigate Spectral Doppler Analysis (MSDA) as a potential tool for early diagnosis.

Main Methods:

  • Review of current understanding of implantation processes.
  • Discussion of factors influencing placental function and fetal development.
  • Introduction of Multigate Spectral Doppler Analysis (MSDA) technology.

Main Results:

  • Implantation is a complex process susceptible to minor disruptions.
  • Placental function is vital for normal fetal growth and can be compromised in conditions like IUGR and preeclampsia.
  • MSDA shows promise for early detection of adverse fetal outcomes.

Conclusions:

  • Implantation is a key factor in reproductive outcomes.
  • Early detection of fetal complications using advanced techniques like MSDA is essential.
  • Improved diagnostic capabilities can aid in managing pregnancy-associated complications.