Sometimes I wish the name weren't so common, but part of me also thinks that one of the reasons it's popular is that it has a very lyrical sound to it. -- ecshell 4/23/2007. This is my name, and I strongly dislike it. I know that it's not always good to have the most common name, but there have only been 3 girls my age that I have ever met with the same name as me. Actually, one of those girls was a year older than me. Anyways. I'd rather have just been named Elisabeth or another L name because I was named after my grandma.
Most hypergammaglobulinemias are caused by an excess of immunoglobulin M (IgM), because this is the default immunoglobulin type prior to class switching. Some types of hypergammaglobulinemia are actually caused by a deficiency in the other major types of immunoglobulins, which are IgA, IgE and IgG. There are 5 types of hypergammaglobulinemias associated with hyper IgM.
X-linked agammaglobulinemia (XLA) is a humoral primary immunodeficiency in which affected patients have very low levels of peripheral B cells and a profound deficiency of all immunoglobulin isotypes. Mutations in the gene encoding for Bruton's tyrosine kinase (Btk) are responsible for most of the gammaglobulinemia.