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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.
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Male infertility affects millions of couples worldwide, arising from various factors that impact different stages of the reproductive process. An endocrine imbalance resulting from conditions like hypogonadism, Klinefelter syndrome, or pituitary disorders can disrupt hormone levels and reduce sperm production. Testicular defects, such as tumors, cryptorchidism, atrophic testes, abnormal sperm morphology, and low sperm count or motility, may arise due to genetic factors, structural...

Infertility in Females

Infertility in Females

Female infertility is defined as the inability to conceive after a year of regular, unprotected intercourse and affects about 10–15% of couples worldwide. The primary cause of female infertility is ovulatory disorders, which hinder the release of eggs. These disorders can be classified as hypothalamic amenorrhea, polycystic ovarian syndrome (PCOS), premature ovarian failure, and hyperprolactinemic anovulation disorders.
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Reproductive Cloning

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Reproductive cloning is the process of producing a genetically identical copy—a clone—of an entire organism. While clones can be produced by splitting an early embryo—similar to what happens naturally with identical twins—cloning of adult animals is usually done by a process called somatic cell nuclear transfer (SCNT).
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Reproductive Cloning

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Reproductive cloning is the process of producing a genetically identical copy—a clone—of an entire organism. While clones can be produced by splitting an early embryo—similar to what happens naturally with identical twins—cloning of adult animals is usually done by a process called somatic cell nuclear transfer (SCNT).
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Related Experiment Video

Updated: May 16, 2026

Gamete Collection and In Vitro Fertilization of Astyanax mexicanus

Gamete Collection and In Vitro Fertilization of Astyanax mexicanus

Published on: May 25, 2019

[Mexican National Consensus on Assisted Reproduction Treatment].

Alberto Kably Ambe, Carlos Salazar López Ortiz, Claudio Serviere Zaragoza

Ginecologia Y Obstetricia De Mexico

|December 19, 2012

Summary

Infertility affects 15% of couples, driving demand for assisted reproduction. This consensus established a unified therapeutic approach for fertility treatments, focusing on patient selection and embryo transfer to optimize success rates.

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Area of Science:

Reproductive Medicine
Infertility Management
Assisted Reproductive Technology (ART)

Background:

15% of couples in industrialized nations experience infertility after 12 months of unprotected intercourse.
Increasing demand for fertility treatments due to perceived advancements in efficacy.
Need for standardized protocols in assisted reproduction.

Framework:

Development of a Mexican Official Standard for assisted reproduction procedures.
Establishment of a consensus-based therapeutic approach.
Ensuring patient rights and legislative compliance.

Implementation:

Consensus reached by a panel of 34 national assisted reproduction centers.
Seven workshops covered key ART aspects: patient selection, ovarian stimulation, oocyte retrieval, embryo transfer, luteal phase support, cryopreservation, and informed consent.
Unanimous agreement achieved on critical procedural elements.

Implications:

Optimized patient selection is crucial for successful assisted reproduction outcomes.
Transferring one to two embryos in egg donation reduces multiple pregnancies while maintaining high success rates.
Standardized protocols aim to improve the overall effectiveness and safety of fertility treatments.