It is a muscular disease in which the muscle fibers do not function for any one of many reasons, resulting in muscular weakness.
Myotubular myopathy, also known as centronuclear myopathy, is a slowly progressive disease that causes drooping of the eyelids, foot drop, facial weakness, and other muscle weakness. Nemaline myopathy, also known as Rod body disease, develops from birth to adulthood and is nonprogressive and usually not fatal. In some cases, myopathies can be caused by a malfunctioning gland (or glands), which produces either too much or too little of the chemical messengers called hormones. Hormones are carried by the blood and one of their many functions is to regulate muscle activity. With that in mind, myopathies are a group of diseases that cause muscle weakness, cramps, and spasms due to a primary defect of the muscle fiber. The more technical term for a muscle fiber is a myocyte, or muscle cell, or myofiber. So, myopathies are a group of diseases that cause muscle weakness, cramps, and spasms due to a primary defect of the muscle fiber. The more technical term for a muscle fiber is a myocyte. Some of the myopathies a person may have are genetic in their origin. Definition. Myopathy refers to a clinical disorder of the skeletal muscles. Abnormalities of muscle cell structure and metabolism lead to various patterns of weakness and dysfunction. In some cases, the pathology extends to involve cardiac muscle fibers, resulting in a hypertrophic or dilated cardiomyopathy.  Congenital myopathies are a heterogeneous group of disorders that cause hypotonia in infancy or weakness and delayed motor milestones later in childhood. An autosomal dominant form of nemaline myopathy is linked to chromosome 1 (-tropomyosin gene), and a recessive form to chromosome 2. In some cases, myopathies can be caused by a malfunctioning gland (or glands), which produces either too much or too little of the chemical messengers called hormones. Hormones are carried by the blood and one of their many functions is to regulate muscle activity. From Wikipedia, the free encyclopedia. Myopathy is a muscular disease in which the muscle fibers do not function for any one of many reasons, resulting in muscular weakness. Myopathy simply means muscle disease (myo-Greek μυο muscle + pathos-pathy Greek suffering). Muscle cramps, stiffness, and spasm can also be associated with myopathy. Capture Myopathy, or Shock Disease, is a little-studied condition observed in wild animals such as hares and birds that have been captured or handled. The condition is usually lethal and stress has been identified as the single most determining factor, exacerbated by muscle exertion Myopathy refers to any disease that affects muscle tissue. Diseases of the muscle result in weakness, inflammation, tetany (spasms), or paralysis. Myopathy can be the result of either inherited or acquired causes. Acute acquired myopathies, such as acute stiffness, spasm, or cramp, are common. Others are linked to exposure to an infectious agent, such as viruses or bacteria, or are inherited. However, certain cases of myopathy have no known associated risk factors. The myopathies are neuromuscular disorders in which the primary symptom is muscle weakness due to dysfunction of muscle fiber. Myopathies can be inherited (such as the muscular dystrophies) or acquired (such as common muscle cramps). Myopathies are grouped as follows: congenital myopathies: characterized by developmental delays in motor skills; skeletal and facial abnormalities are occasionally evident at birth. Nemaline myopathy is a disorder that primarily affects skeletal muscles, which are muscles that the body uses for movement. People with nemaline myopathy have muscle weakness (myopathy) throughout the body, but it is typically most severe in the muscles of the face, neck, and limbs. This weakness can worsen over time.  By Dr Tomislav Meštrović, MD, PhD. Myopathies are a group of disorders characterized by a primary structural or functional impairment of skeletal muscle. They usually affect muscle without involving the nervous system, resulting in muscular weakness. Myopathies can manifest with either “negative” or “positive” symptoms. Negative symptoms include muscle weakness, exercise intolerance and fatigue, while so called positive symptoms usually encompass cramps and myalgias, with occasional contractures, myotonia and myoglobinuria.
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what is myopathy