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Q9:
Suggest some methods to assist infertile couples to have children.

Solution :

1. Assisted Reproductive Technologies (ART): Definition and Scope

Assisted Reproductive Technologies (ART) comprise a collection of medical procedures designed to facilitate fertilization and embryo development outside or inside the reproductive tract for couples experiencing clinical infertility [Per WHO guidelines on Reproductive Health].

2. In Vitro Fertilization (IVF) and Embryo Transfer (ET)

In this technique, often termed "test-tube baby" program, ova from the wife/donor and sperms from the husband/donor are collected and induced to form a zygote under simulated laboratory conditions.

  • ZIFT (Zygote Intra Fallopian Transfer): The zygote or early embryos (up to 8 blastomeres) are transferred into the fallopian tube [Biotechnological application for tubal factor infertility].
  • IUT (Intra Uterine Transfer): Embryos with more than 8 blastomeres are transferred into the uterus to complete further development.

3. Gamete-Based Procedures

When the female partner cannot produce an ovum, but can provide a suitable environment for fertilization and development:

  • GIFT (Gamete Intra Fallopian Transfer): Transfer of an ovum collected from a donor into the fallopian tube of another female who cannot produce one, but can provide the environment for fertilization.
  • ICSI (Intra Cytoplasmic Sperm Injection): A specialized procedure where a single sperm is directly injected into the ovum [Used in cases of male-factor infertility, such as low sperm count or motility].

4. Artificial Insemination (AI)

This procedure is employed when the male partner is unable to inseminate the female or has a very low sperm count. Semen collected from the husband or a healthy donor is artificially introduced into the vagina or uterus of the female.

  • IUI (Intra Uterine Insemination): The sperm is injected directly into the uterus, increasing the probability of fertilization by bypassing cervical barriers.

Visual Representation of Assisted Reproductive Pathways

Infertility Treatment Pathways 1. IVF/ET: External fertilization, then transfer. 2. ICSI: Direct micro-injection of sperm into oocyte. 3. GIFT: Gamete transfer into fallopian tube. 4. IUI: Sperm bypasses cervix into the uterus.

Summary Table of Procedures

Procedure Target Location Primary Indication
ZIFT Fallopian Tube Zygote development failure
IUT Uterus Embryo stage > 8 cells
ICSI Cytoplasm of Ovum Male infertility (motility/count)
GIFT Fallopian Tube Inability to produce ova

Final Solution: The methods to assist infertile couples include IVF (In Vitro Fertilization), ZIFT (Zygote Intra Fallopian Transfer), IUT (Intra Uterine Transfer), GIFT (Gamete Intra Fallopian Transfer), ICSI (Intra Cytoplasmic Sperm Injection), and Artificial Insemination (AI/IUI).


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