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Update on X-linked hypogammaglobulinemia with isolated growth hormone deficiency
Donn M Stewart1, Lan Tian, Luigi D Notarangelo
1Metabolism Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA, and Department of Pediatrics, University of Brescia, Italy.
Purpose Of Review:
To provide an update on the syndrome X-linked hypogammaglobulinemia with isolated growth hormone deficiency, focusing on the pedigree described originally.
Recent Findings:
An additional case of X-linked hypogammaglobulinemia with isolated growth hormone deficiency and an unaffected male have been born to a female carrier in the family, allowing improved disease locus mapping. Unpublished research has identified a mutation in the transcription factor myeloid elf-1-like factor that may be the cause of the disease.
Summary:
X-linked hypogammaglobulinemia with isolated growth hormone deficiency is not caused by Bruton's tyrosine kinase mutations in the family described originally, but may be due to a mutation in myeloid elf-1-like factor.
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