Myasthenia Gravis (MG) Definition Myasthenia gravis is a chronic‚ progressive neuromuscular‚ autoimmune disease marked by varying degrees of weakness of the skeletal (voluntary) muscles of the body. The body’s immune system attacks and destroys receptors in the muscles. These receptors bind acetylcholine‚ the neurotransmitter released from motor neurons. (Turkington & Harris‚ 2009) The main calling card of myasthenia gravis is muscle weakness that increases during periods of activity and improves
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BOTULINUM TOXIN Society is obsessed with the aging process; but‚ aging is inevitable. Staying youthful and beautiful is no longer enough‚ for beauty equates with power and control; those compelling commodities are more influential than anything else society clings too. Botulinum toxin is revered to be the non-surgical remedy for society’s plan for prolonged youthfulness. This toxin is viewed as the best solution for turning back the clock of the aging process. Yet this poison of perfection
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Electromyography In this experiment‚ you will explore the electrical activity of skeletal muscle by recording an electromyogram (EMG) from a volunteer. You will examine the EMG of both voluntary and evoked muscle action and attempt to measure nerve conduction velocity. Written by staff of ADInstruments. [pic] Background A skeletal muscle fiber is innervated by a branch of a motor axon. Under normal circumstances‚ a neuronal action potential activates all of the muscles innervated by
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Botulism Botulism may not be at the top of your list of household known diseases‚ but it is a rare and very serious illness. Botulinium toxin is one of the most powerful known toxins: about one microgram is lethal to humans. Only about 110 people get it every year in the United States. Since it is rare‚ all forms can be deadly and are considered to be medical emergencies. The cause is a neurotoxin made by a bacterium called Clostridium botulinum (C. botulinum). This toxin travels through the blood
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Pain and discomfort of the shoulder and entire upper extremity is a significant problem for many people and it can be attributed to a wide variety of causes1. The focus of this paper is to discuss the cause‚ symptoms‚ diagnoses‚ treatment and management of thoracic outlet syndrome (TOS). TOS is caused by a neurovascular compression event that can elicit pain‚ paraesthesia or discomfort in areas varying from the chest to the fingertips2‚3. The ‘thoracic outlet’ is composed of three confined spaces
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Hyperkalemic periodic paralysis‚ generally known as HYPP or Impressive Syndrome‚ has been wide-spread for several years now in Appaloosas‚ Quarter horses‚ Paints‚ and Palominos. Affected horses show well-developed muscles and are usually winning many halter classes. But‚ HYPP is not limited to just these stock breeds. It can cross over to any other breed if an affected horse is bred to one of a different breed which has yet to be affected. Impressive Syndrome was first identified in 1985 as a heritable
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Bowles EJA‚ Wellman R‚ Feigelson HS‚ et al. Risk of Heart Failure in Breast Cancer Patients After Anthracycline and Trastuzumab Treatment: A Retrospective Cohort Study. JNCI Journal of the National Cancer Institute. 2012;104(17):1293-1305. doi:10.1093/jnci/djs317. Purpose: The purpose of this research was to determine whether women with breast cancer treated using the chemotherapy anthracycline and trastuzumab were at a greater risk for heart failure or cardiomyopathy. Method: This was a retrospective
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Speech-Language Pathologists (SLPs) working in the medical setting are typically members of rehabilitation teams‚ who work with individuals who have suffered from an illness‚ disease‚ or injury that may result in neurological deficits affecting speech‚ language‚ and/or cognition. Specifically‚ when working with the adult population‚ SLPs frequently assess and treat individuals diagnosed with a motor speech disorder called dysarthria. There are many types of dysarthria that can be characterized
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GAIT ANALYSIS AND RECOGNITION TECHNIQUES Gait analysis is the systematic study of animal locomotion‚ more specifically the study of human motion‚ using the eye and the brain of observers‚ augmented by instrumentation for measuring body movements‚ body mechanics‚ and the activity of the muscles. Gait analysis is used to assess‚ plan‚ and treat individuals with conditions affecting their ability to walk. It is also commonly used in sports biomechanics to help athletes run more efficiently and to identify
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Lysosomal storage diseases are rare‚ inherited disorders caused by the deficiency of one or more enzymes within the lysosomes of cells. Hunter Syndrome also known as mucopolysaccharidosis disorder II (MPS II)‚ is a genetic abnormality occurring in canines and humans. It is a rare X-linked recessive metabolic storage disorder caused by the deficiency of the lysosomal enzyme iduronate-2-sulphatase‚ which is needed to breakdown complex sugars produced in the body‚ leading to progressive accumulation
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