Myopathies due to endocrine abnormalities are neuromuscular diseases caused by a malfunctioning gland. This defective gland, which may be one of several in the body, produces either too much or too little of substances called hormones, which are carried in the bloodstream to parts of the body such as muscles to regulate their functions. Problems in hormone production may cause muscle weakness.
Hyperthyroid myopathy and hypothyroid myopathy are nonlethal disorders produced by a faulty thyroid gland. Thet differ in the muscles affected and the presence or absence of muscle wasting.
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