Thursday, April 23, 2009

Chromosome Abnormalities


Sex chromosomes are the major chromosomes involved in the abnormal presentations. The chromosomal abnormalities that are autosomal in origin are slightly less common. The autosomal disorders are however much less severe in their effects. The sex chromosomes abnormalities are gender specific. When there is variation in the number of X chromosomes, female fetuses suffer from chromosome abnormalities, whereas, irregular numbers of either X or Y chromosomes or both result in male abnormalities.

The major chromosomal abnormalities are:
Turner syndrome: in which the females inherit only single X chromosome.
Triple X females or metafemales: in which females inherit more than two X chromosomes.
Klinefelter syndrome: in which males inherit extra X chromosomes.
XYY syndrome: in which the males inherit an extra Y chromosome.

Also the other genetic disorders like cystic fibrosis, sickle cell anemia, Huntington disease, hemophilia, Tay-Sachs disease, and certain leukemias also result due to some or the other chromosomal abnormality.

This is the reason medical experts suggest the PGD test at much earlier stage. This is nothing but Pre-implantation Genetic Diagnosis. Especially the parents whose progeny is at increased risk of inheriting genetic disorder can be helped through this test. After the completion of IVF cycle, one cell from each of the fertilized embryos is tested form DNA mutation that may be considered responsible for a particular genetic disease. This test also helps diagnosing gender of the baby.

That is why you should always search for the right hospital in which such advanced investigations are performed in the state of art laboratory and by expert staff!

Written By: Palm Beach Fertility Center - 9291 Glades Road, Suite 202 - Boca Raton, Florida 33434 Call: (800) 953-BABY
Palm Beach Fertility Center offers fertility treatment and reproductive services to South Florida and international patients. We specialize in In Vitro Fertilization (IVF), ART Services, Gamete Intra-fallopian Transfer (GIFT), Zygote Intra-fallopian Transfer (Zift), Intracytoplasmic Sperm Injection (ICSI), Blastocyst Transfer, Assisted Hatching (AH), Pre-implantation Genetic Diagnosis (PGD), Embryo Freezing/Cryopreservation, Egg Donation, Donor Egg Program and Surrogacy.





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