The term eczema is broadly applied to many persistent skin conditions. These include dryness and
recurring skin rashes that are characterized by one or more of following symptoms
itching and dryness,
oozing or bleeding.
Skin edema or swelling
The cause of eczema is unknown but is presumed to be a combination of genetic and environmental factors.
Another study identified a gene that the researchers believe to be the cause of inherited eczema and some
related disorders. The gene produces the protein filaggrin , the lack of which causes dry skin and impaired skin
barrier function.A recent study indicated that two specific chemicals found in the blood are connected to the
itching sensations associated with eczema. The chemicals are neurotrophic factor & P substance.In a genome-wide
study published on Dec 25, 2011 in Nature Genetics, researchers reported discovery of three new genetic variants
associated with eczema. They are OVOL1, ACTL9 and IL4-KIF3A.