title: Chronic granulomatous disease, the McLeod phenotype and the contiguous gene deletion syndrome-a review.
abstract: Chronic Granulomatous Disease (CGD), a disorder of the NADPH oxidase system, results in phagocyte functional defects and subsequent infections with bacterial and fungal pathogens (such as Aspergillus species and Candida albicans). Deletions and missense, frameshift, or nonsense mutations in the gp91phox gene (also termed CYBB), located in the Xp21.1 region of the X chromosome, are associated with the most common form of CGD. When larger X-chromosomal deletions occur, including the XK gene deletion, a so-called "Contiguous Gene Deletion Syndrome" may result. The contiguous gene deletion syndrome is known to associate the Kell phenotype/McLeod syndrome with diseases such as X-linked chronic granulomatous disease, Duchenne muscular dystrophy, and X-linked retinitis pigmentosa. These patients are often complicated and management requires special attention to the various facets of the syndrome.
authors: Division of Allergy, Asthma and Clinical Immunology, Department of Medicine, Quillen College of Medicine, East Tennessee State University, Johnson City, Tennessee, USA. krishnas@mail.etsu.edu.
authors: Casey E
authors: CE
authors: Watkins
authors: John
authors: J
authors: Litchfield
authors: Eunkyung
authors: E
authors: Song
authors: Gayatri B
authors: GB
authors: Jaishankar
authors: Niva
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authors: Misra
authors: Nikhil
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authors: Holla
authors: Michelle
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authors: Duffourc
authors: Guha
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authors: Krishnaswamy