8 rezultatov
Menadione (2-methyl-1,4-naphthoquinone) is cytotoxic to hepatocytes. In order to begin to investigate the changes in the physical state of membranes induced by this cytotoxic substance, electron paramagnetic resonance (EPR) spin-labeling techniques were used in conjunction with spin labels specific
Several in vitro and in vivo studies have suggested that surface bleb formation during oxidative cell injury is related to alteration in cytoskeleton organization. Various cell lines different in origin and growth characteristics were exposed to 2-methyl-1,4-naphthoquinone (menadione) which is known
A 2-year-old girl with reducing body myopathy was reported. She had no family history of neuromuscular disease. She developed normally with no delay in milestones during infancy. She had no muscle weakness or hypotonia up to 2 years of age when she received mumps vaccination. Three days after the
We recently identified the X-chromosomal four and a half LIM domain gene FHL1 as the causative gene for reducing body myopathy, a disorder characterized by progressive weakness and intracytoplasmic aggregates in muscle that exert reducing activity on menadione nitro-blue-tetrazolium (NBT). The
BACKGROUND
Reducing body myopathy is a rare X-linked myopathy. It is characterized by intracytoplasmic inclusions that stain with menadione-nitroblue tetrazolium. It is caused by mutations in the FHL1 gene, which encodes the four-and-a-half LIM domain 1 protein (FHL1).
METHODS
We performed a
Reducing body myopathy (RBM) is a rare pathologically defined myopathy characterized by the presence of inclusion bodies which are abnormally stained by menadione-nitroblue-tetrazolium. The clinical symptoms vary widely as to the age of onset, disease progression and severity. Among the many
OBJECTIVE
Some pathologic features of the FHL1 myopathies and the myofibrillar myopathies (MFMs) overlap; we therefore searched for mutations in FHL1 in our cohort of 50 patients with genetically undiagnosed MFM.
METHODS
Mutations in FHL1 were identified by direct sequencing. Polymorphisms were
OBJECTIVE
Reducing body myopathy (RBM) is a rare progressive disorder of muscle characterized by intracytoplasmic inclusions, which stain strongly with menadione-NBT (nitroblue tetrazolium). We recently identified the four and a half LIM domain gene FHL1 located on chromosome Xq26 as the causative