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Jacobsen syndrome is a rare chromosomal disorder resulting from deletion of genes from chromosome 11 that includes band 11q24.1. It is a congenital disorder . Since the deletion takes place on the q arm of chromosome 11, it is also called 11q terminal deletion disorder. [ 1 ]
XYY syndrome, also known as Jacobs syndrome, is an aneuploid genetic condition in which a male has an extra Y chromosome. [1] There are usually few symptoms. [ 2 ] These may include being taller than average and an increased risk of learning disabilities .
This syndrome is referred to as "cat eye" due to the eye appearance of reported affected individuals who have coloboma of the iris, but this feature is only seen in about half of the cases. Mosaic trisomy 22 [ 7 ] is a disorder in which an extra chromosome 22 is found only in some cells of the body.
1p36 deletion syndrome is a congenital genetic disorder characterized by moderate to severe intellectual disability, delayed growth, hypotonia, seizures, limited speech ability, malformations, hearing and vision impairment, and distinct facial features. The symptoms may vary, depending on the exact location of the chromosomal deletion.
Full trisomy 9 is a rare and fatal chromosomal disorder caused by having three copies of chromosome number 9.It can be a viable condition if the trisomic component affects only part of the cells of the body or in cases of partial trisomy of the short arm (trisomy 9p) in which cells have a normal set of two entire chromosomes 9 plus part of a third copy of the short arm ("p") of the chromosome.
Schwartz–Jampel syndrome (SJS, also known as chondrodystrophic myotonia) is a rare genetic disease caused by a mutation in the perlecan gene (HSPG2) [1] which causes osteochondrodysplasia associated with myotonia. [2] Most people with Schwartz–Jampel syndrome have a nearly normal life expectancy. [3]
A new study finds that 9 out of 10 adults in the U.S. may have cardiovascular-kidney-metabolic (CKM) syndrome. The research found 90% of adults qualify for stage 1 or higher of this condition.
Wolf–Hirschhorn syndrome (WHS) is a chromosomal deletion syndrome resulting from a partial deletion on the short arm of chromosome 4 [del(4)(p16.3)]. [3] Features include a distinct craniofacial phenotype and intellectual disability .