X–linked spinomuscular atrophy: A kindred with associated abnormal androgen receptor binding

C. L. Warner, Jim Griffin III, J. D. Wilson, L. D. Jacobs, K. R. Murray, K. H. Fischbeck, D. Dickoff, R. C. Griggs

Research output: Contribution to journalArticlepeer-review

64 Scopus citations


Article abstract We studied androgen receptor function in cultured scrotal skin fibroblasts from eight subjects with X–linked spinal and bulbar muscular atrophy (SBMA) (Kennedy's syndrome) from four families. The neuromuscular and endocrine features were similar in all patients. High–affinity dihydrotestosterone binding (Bmax) was decreased in three patients from one family (average, 11.1 fmol/mg) similar to values in subjects with androgen resistance syndromes. Bmax was normal in five SBMA patients from three other families (average, 26.0 fmol/mg). This finding provides direct evidence for abnormal androgen receptor function in some patients with SBMA. There was some correlation between severity of neuromuscular and endocrine dysfunction, providing further evidence that the two types of manifestations are related.

Original languageEnglish (US)
Pages (from-to)2181-2184
Number of pages4
Issue number11
StatePublished - Nov 1992

ASJC Scopus subject areas

  • Clinical Neurology


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