INCONTINENTIA PIGMENTI
Category: Child Health
Abstract :
Genes are inherited from our biological parents in specific ways. One of the
basic patterns of inheritance of our genes is called X-linked dominant
inheritance. What is X-linked dominant inheritance? X-linked dominant
inheritance is where the gene is located on the X chromosome, but the gene acts
in a dominant manner. This means that both males and females can display the
trait
Genes are inherited from our biological parents in specific ways. One of the
basic patterns of inheritance of our genes is called X-linked dominant
inheritance.
What is X-linked dominant inheritance?
X-linked dominant
inheritance is where the gene is located on the X chromosome, but the gene acts
in a dominant manner. This means that both males and females can display the
trait or disorder, by only having one copy of the gene.
Depending on the
disorder, often times a gene that is X-linked dominant causes a male pregnancy
not to survive. Another way scientists and physicians refer to this process is
to say that "there is lethality in males." This means that the gene is passed
from mother to daughter, and, if passed to a son, the pregnancy miscarries. Only
those sons without the gene survive to be born and are born healthy. One example
of an X-linked dominant condition is called incontinentia pigmenti
(IP).
What is incontinentia pigmenti (IP)?
IP is extremely rare. The
main features occur in the skin where a blistering rash occurs in the newborn
period, followed by the blisters becoming raised-like warts. Next, brown swirls
appear in the skin, followed by the appearance of light swirls. The result is a
"marble cake-like" appearance on the skin. Other health problems can be seen in
IP involving the eyes, central nervous system, teeth, nails, and hair. The
severity varies from person to person
Hit: 1157 times
Related Articles in Child Health :
|
Add to My Bookmarks
Make My Homepage
Print
Send to a friend
Advertise with Us