PREIMPLANTATION DIAGNOSIS Meaning and
Definition
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Preimplantation diagnosis refers to a medical procedure that is carried out prior to the implantation of an embryo in the uterus during the process of in vitro fertilization (IVF). It involves the examination of the genetic and chromosomal makeup of the embryo in order to identify any potential genetic abnormalities or other disorders before it is transferred to the woman's womb.
The method of preimplantation diagnosis typically involves the removal of one or two cells from the embryo at an early stage of development, usually when it has reached the eight-cell stage. These cells are then subjected to various tests, such as polymerase chain reaction (PCR), fluorescence in situ hybridization (FISH), or comparative genomic hybridization (CGH), which allow for the detection of specific genetic conditions or chromosomal abnormalities.
The main objective of preimplantation diagnosis is to identify any embryos that are affected by severe genetic diseases, such as cystic fibrosis, Tay-Sachs disease, or Down syndrome. By screening and selectively transferring only those embryos that are free from genetic disorders, couples who are carriers of certain genetic conditions can increase their chances of having a healthy child.
Preimplantation diagnosis also allows for gender selection in certain cases, where the couple may have a specific preference for a boy or a girl. However, the ethical implications and controversies surrounding this practice have led to its restriction in many countries.
Overall, preimplantation diagnosis offers a means to enhance the success rate of IVF and reduce the likelihood of genetically transmitted disorders in children born through this assisted reproductive technology.
Common Misspellings for PREIMPLANTATION DIAGNOSIS
- oreimplantation diagnosis
- lreimplantation diagnosis
- -reimplantation diagnosis
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- peeimplantation diagnosis
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- preumplantation diagnosis
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- preomplantation diagnosis
Etymology of PREIMPLANTATION DIAGNOSIS
The word "Preimplantation Diagnosis" is a compound term derived from several roots:
1. Pre-: a prefix meaning "before".
2. Implantation: derived from the Latin word "implantare", meaning "to plant or establish". In the context of preimplantation diagnosis, it refers to the early stage of pregnancy when the fertilized embryo implants itself into the wall of the uterus.
3. Diagnosis: derived from the Greek word "diagnōsis", meaning "discernment, understanding". It refers to the identification and classification of a condition or disease based on the evaluation of symptoms, medical tests, and other relevant factors.
Therefore, "preimplantation diagnosis" refers to the diagnostic procedures conducted before the implantation of an embryo in assisted reproductive technologies, such as in vitro fertilization (IVF).
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