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In Vitro Fertilization

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...

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Related Experiment Video

Updated: Jun 15, 2026

Vitrification of In Vitro Matured Oocytes Collected from Adult and Prepubertal Ovaries in Sheep

Vitrification of In Vitro Matured Oocytes Collected from Adult and Prepubertal Ovaries in Sheep

Published on: July 10, 2021

Embryo development and gestation using fresh and vitrified oocytes.

Carlos Gilberto Almodin¹, Vania Cibele Minguetti-Camara, Cassia Lopes Paixao

¹Materbaby Human Reproduction-Human Reproduction, Av XV de Novembro, 1232, Maringá, Paraná 87013230, Brazil. almodin@materbaby.com.br

Human Reproduction (Oxford, England)

|February 27, 2010

Summary

This summary is machine-generated.

The novel Vitri-ingá method for vitrifying oocytes shows comparable pregnancy and implantation rates to fresh oocytes in IVF-ET procedures. This cryopreservation technique effectively preserves oocyte viability for successful fertilization and embryo development.

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Last Updated: Jun 15, 2026

Vitrification of In Vitro Matured Oocytes Collected from Adult and Prepubertal Ovaries in Sheep

Vitrification of In Vitro Matured Oocytes Collected from Adult and Prepubertal Ovaries in Sheep

Published on: July 10, 2021

Vitrification of Ovarian Cortex Tissue to Achieve a Glassy State of Aggregation

Vitrification of Ovarian Cortex Tissue to Achieve a Glassy State of Aggregation

Published on: August 9, 2024

Area of Science:

Reproductive Science
Embryology
Cryobiology

Background:

Oocyte cryopreservation is crucial for assisted reproductive technologies.
Novel vitrification methods aim to improve oocyte survival and clinical outcomes.
Comparing outcomes of vitrified vs. fresh oocytes is essential for clinical application.

Purpose of the Study:

To evaluate the clinical efficacy of the Vitri-ingá vitrification method.
To compare gestational outcomes of vitrified/thawed oocytes with fresh oocytes.

Main Methods:

Retrospective analysis of 125 IVF-ET procedures.
Group 1: Embryos from fresh oocytes (n=79).
Group 2: Embryos from oocytes vitrified/thawed using Vitri-ingá (n=46).
Comparison of fertilization, pregnancy, and implantation rates.

Main Results:

Vitrified oocytes exhibited an 84.9% survival rate.
No significant differences in fertilization, pregnancy, or implantation rates between fresh and vitrified groups.
Slightly higher average blastomere count in the fresh oocyte group.

Conclusions:

The Vitri-ingá method demonstrates effectiveness in preserving oocyte potential.
Clinical results indicate successful fertilization and development from vitrified oocytes.
This novel method offers a viable option for oocyte cryopreservation.