Description : Nemaline myopathy-6 is an autosomal dominant skeletal muscle disorder characterized
by childhood onset of slowly progressive proximal muscle weakness, exercise intolerance,
and slow movements with stiff muscles. Patients are unable to run or correct themselves
from falling over. Histopathologic changes seen on skeletal muscle biopsy include
nemaline rods, cores devoid of oxidative enzyme activity, and predominance of hypertrophic
type 1 fibers. There is no cardiac or respiratory involvement (summary by Sambuughin
et al., 2010).;
Inheritance : Autosomal dominant;
Molecular basis : Caused by mutation in the Kelch repeat and BTB/POZ domains-containing protein 13 gene
(KBTBD13, 613727.0001).;