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Adrenoleukodystrophy; Other names: X-linked adrenoleukodystrophy, ALD, X-ALD, Siemerling–Creutzfeldt disease, bronze Schilder disease: White matter, with reduced volume and increased signal intensity. The anterior white matter is spared. Features are consistent with X-linked adrenoleukodystrophy. Pronunciation /-
This genetic disorder article is a stub. You can help Wikipedia by expanding it.
The following is a list of genetic disorders and if known, type of mutation and for the chromosome involved. Although the parlance "disease-causing gene" is common, it is the occurrence of an abnormality in the parents that causes the impairment to develop within the child. There are over 6,000 known genetic disorders in humans.
Zellweger spectrum disorders are a group of autosomal recessive genetic disorders. They are caused due to pathogenic mutations in at least 13 different PEX genes that encode peroxins. [5] It affects the peroxisomes, which are organelles in the body that are meant to breakdown items like acids and toxic compounds. Both parents will have to have ...
If both parents were carriers of a defective gene associated with a disease or disorder, they would both have the disorder. Their children would inherit the disorder as follows: Of their daughters: 100% will have the disorder, since all of the daughters will receive a copy of their father's X chromosome.
X-linked recessive inheritance. X-linked recessive inheritance is a mode of inheritance in which a mutation in a gene on the X chromosome causes the phenotype to be always expressed in males (who are necessarily hemizygous for the gene mutation because they have one X and one Y chromosome) and in females who are homozygous for the gene mutation (see zygosity).
Another type of inherited leukodystrophy is X-linked adrenoleukodystrophy (X-ALD). As its name implies, this type of leukodystrophy is the result of a mutation found on the X-chromosome. It is also carried in a recessive pattern.
The other two disorders are neonatal adrenoleukodystrophy (NALD), and infantile Refsum disease (IRD). [5] [6] Although all have a similar molecular basis for disease, Zellweger syndrome is the most severe of these three disorders. [7] Zellweger syndrome is associated with impaired neuronal migration, neuronal positioning, and brain development. [4]