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Contraction tension and kinetics of the peroneus longus muscle were studied in dogs with the Duchenne homologue, golden retriever muscular dystrophy (GRMD), in advance of evaluating localized therapies such as myoblast transplantation. Absolute and both muscle- and body-weight-corrected twitch tension in GRMD dogs were low compared to normal litter mates at(More)
We have determined the molecular basis for skeletal myopathy and dilated cardiomyopathy in two male German short-haired pointer (GSHP) littermates. Analysis of skeletal muscle demonstrated a complete absence of dystrophin on Western blot analysis. PCR analysis of genomic DNA revealed a deletion encompassing the entire dystrophin gene. Molecular cytogenetic(More)
Acute injury to the central nervous system initiates a series of biochemical events that cause secondary tissue damage. The accumulation of excessive concentrations of glutamate in the extracellular space causes excitotoxic damage, and is incriminated as a mediator of this secondary tissue damage. The aim of this study was to measure the concentration of(More)
The 5-year survival rate for women with metastatic breast cancer is only 25-30%; thus, the need to improve treatment is apparent. Overexpression of insulin-like growth factor-I receptor (IGF-IR) correlates with poor prognosis and local recurrence. In this study, we addressed whether functional impairment of IGF-IR affects adhesion, invasion, and metastasis(More)
Labrador retrievers suffer from an autosomal recessive muscular dystrophy of unknown aetiology. Dogs affected with this disease develop generalized weakness associated with severe, generalized skeletal muscle atrophy and mild elevations in creatine kinase in the first few months of life. The severity of signs tends to progress over the first year of life(More)
Recently a feline dysautonomia of unknown aetiology, the Key-Gaskell syndrome, has caused widespread morbidity in the UK. This report describes the ultrastructural appearances of the autonomic ganglia and axons of the sympathetic chain in this condition. Nuclei of affected neurones were eccentric and abnormally crenated. Nucleolar abnormalities such as(More)
The 5-year survival rate for women with metastatic breast cancer is only 25-30%; thus, the need to improve treatment is apparent. Overex-486stop, but growth in monolayer was unaffected. When injected into the mammary fat pad, 486stop did not significantly suppress growth of the primary tumor, but metastasis to the lungs, livers, lymph nodes, and lymph(More)
Notexin, a myotoxic phospholipase, was used to induce focal necrosis in the sartorius muscles of normal mixed-breed adult dogs and in 12-week-old beagles. Notexin injury caused pathologic changes similar to those of Duchenne muscular dystrophy (DMD) and its canine homologue, golden retriever muscular dystrophy (GRMD). All three conditions are characterized(More)
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