| Charcot's syndrome | <symptom> A symptom complex characterised by leg pain and weakness brought on by walking, with the disappearance of the symptoms following a brief rest. (12 Dec 1998) |
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| Charcot's triad | In multiple (disseminated) sclerosis, the three symptoms: nystagmus, tremor, and scanning speech, combination of jaundice, fever, and upper abdominal pain that occurs as a result of cholangitis. (05 Mar 2000) |
| Charcot's vertigo | Fainting as a result of a coughing spell, caused by persistent increased intrathoracic pressure diminishing venous return to the heart, thus lowering cardiac output; most often occurs in heavy-set male smokers who have chronic bronchitis. Synonym: Charcot's vertigo, laryngeal vertigo. (05 Mar 2000) |
| Charcot, Jean | <person> French neurologist, 1825-1893. See: Charcot's arteries, Charcot's disease, Charcot's intermittent fever, Charcot's gait, Charcot's joint, Charcot's syndrome, Charcot's triad, Charcot's vertigo, Charcot-Leyden crystals, Charcot-Neumann crystals, Charcot-Robin crystals, Charcot-Bottcher crystalloids, Charcot-Marie-Tooth disease, Charcot-Weiss-Baker syndrome, Erb-Charcot disease. (05 Mar 2000) |
| Charcot-Bottcher crystalloids | Spindle-shaped crystalloid's 10 to 25 um long, found in human Sertoli cells. (05 Mar 2000) |
| Charcot-Bouchard aneurysm | Dilatation in the diameter of small arteries and arterioles secondary to lipohyalinosis from long-standing hypertension associated with intracerebral haematomas. Synonym: Charcot-Bouchard aneurysm. (05 Mar 2000) |
| Charcot-Leyden crystals | Crystal's in the shape of elongated double pyramids, formed from eosinophils, found in the sputum in bronchial asthma and in other exudates or transudates containing eosinophils. Synonym: asthma crystals, Charcot-Neumann crystals, Charcot-Robin crystals, Leyden's crystals. (05 Mar 2000) |
| charcot-marie disease | A hereditary motor and sensory neuropathy transmitted as an autosomal dominant trait and characterised by progressive distal wasting and loss of reflexes in the muscles of the legs (occasionally of the arms). Onset is usually in the second to fourth decades. (12 Dec 1998) |
| Charcot-Marie-Tooth disease | <disease> A slowly progressive genetic disorder which is the most common of the inherited peripheral neuropathies, and encompasses a family of disorders characterised by distal muscle weakness and diminished nerve conduction velocity, due to the destruction of nerves with degeneration of the myelin sheath. Features include muscle atrophy in the feet and the legs, progressing to the hands and arms, often with foot drop and a slapping gait. The predominant variety, designated CMT1, is an autosomal dominant disorder caused, in most cases, by duplication of a very large (1.5 Mb) region on chromosome 17p11.2-12. A related condition, hereditary neuropathy with liability to pressure palsies (HNPP), is associated with a large deletion in the same general region. There is no specific treatment for this disorder. (16 Dec 1997) |
| Charcot-Neumann crystals | Crystal's in the shape of elongated double pyramids, formed from eosinophils, found in the sputum in bronchial asthma and in other exudates or transudates containing eosinophils. Synonym: asthma crystals, Charcot-Neumann crystals, Charcot-Robin crystals, Leyden's crystals. (05 Mar 2000) |
| Charcot-Robin crystals | Crystal's in the shape of elongated double pyramids, formed from eosinophils, found in the sputum in bronchial asthma and in other exudates or transudates containing eosinophils. Synonym: asthma crystals, Charcot-Neumann crystals, Charcot-Robin crystals, Leyden's crystals. (05 Mar 2000) |
| Charcot-Weiss-Baker syndrome | <syndrome> Stimulation of a hyperactive carotid sinus, causing a marked fall in blood pressure due to vasodilation, cardiac slowing, or both; syncope with or without convulsions or A-V block may occur. Synonym: Charcot-Weiss-Baker syndrome. (05 Mar 2000) |
| Chargaff's rule | In DNA the number of adenine units equals the number of thymine units; likewise, the number of guanine units equals the number of cytosine units. (05 Mar 2000) |
| Chargaff, Erwin | <person> Austrian-U.S. Biochemist, *1905. See: Chargaff's rule. (05 Mar 2000) |
| charge | 1. <physics> A fundamental physical attribute of a particle, which characterises the particle's electromagnetic interaction with other particles and with electric and magnetic fields. 2. Storing energy in a battery or electric capacitor by running a current through it, opposite of discharge. (It is possible to charge most capacitors in either direction, but batteries charge one way, and discharge in the other.) (13 Nov 1997) |