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NMR tomography (NMRT) of the brain and NMR angiography (NMRA) of the extra- and intracranial arteries were performed on the unit Magnetom 63 SP (1.5 T) Siemens in 13 healthy controls and 87 patients with cerebrovascular diseases initiated by arterial hypertension and atherosclerosis of major cerebral arteries. NMRA image of arterial impairment comprise curved extracranial arteries. NMRT picture of the brain was changed (extension of liquor spaces, small hyperintensive foci in the white matter) in mild and moderate hypertension. Frequency of these phenomena and their severity increase with growing severity of the disease reaching maximum in malignant hypertension. In atherosclerosis of the major cerebral arteries NMRT often detected strokes, for the most part ischemic. A direct relationship between the degree of arterial stenosis and incidence of the strokes was not found. 相似文献
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IL Erokhina GV Selivanova TD Vlasova OI Emel'ianova 《Canadian Metallurgical Quarterly》1997,39(10):889-899
Cardiomyocytes of right auricle of human heart were obtained during open heart surgery from 5 patients (aged from 3.6 to 6 years) with congenital heart diseases (atrial septal defect and tetralogy of Fallot, group I), from 6 patients (aged from 20 to 49 years) with mitral valve disease (group II) and from 5 patients (aged from 40 to 54 years) with ischemic heart disease (group III). Ploidy and area of cells were measured in isolated myocytes after the Feulgen staining. The degree of ultrastructural changes in myocytes was evaluated by means of scoring system (0 to 3). The hearts of group I patients contain 55 to 82% of cells with 2c DNA, 18 to 41% of cells with 4c DNA and 0 to 4% of cells with 8c DNA. In the hearts of group II patients the level of cell ploidy is high: the share of 2c-cells varies from 1 to 24%, that of 4c-cells--from 1 to 55%, that of 8c-cells--from 13 to 57%, that of 16c-cells--from 1 to 39%, the share of cells with 32c and more DNA--from 3 to 47%. The ploidy of myocytes of group III patients is not high: 2c-cells make 35 to 55%, 4c-cells--39 to 55%, 8c-cells--5 to 15%. The average cell areas in group II are 4 times larger than in group I, and twice as large as in group III. In most cases, cells of all ploidy levels are larger in patients with higher average cell sizes. In all patients with increased ploidy levels, cells grow in size, but the rate of this growth is lower than that of cell DNA content. In all patients the myocytes with different degrees of organelle damage are observed. In patients of groups I and III there is a direct correlation between the extent of myocyte ploidy and hypertrophy, on the one hand, and the degree of cell degeneration, on the other hand. In contrast, in group II patients an inverse relation between ploidy and extent of degenerative changes of cells is evident. 相似文献
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The results of treatment of 156 patients with occlusion forms of the deep veins thrombosis of the lower extremities and trophic ulcers are adduced. The partial or complete thrombectomy the shunting, Linton and Cockett operations, plastic interventions, the pulmonary artery embolism prophylaxis were conducted, and the late terms--the vibro- and hydromassage. 相似文献
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LB Aksel'rod DM Sukolovskaia VN Kniazheva OI Bogun 《Canadian Metallurgical Quarterly》1976,21(7):636-642
The effect of streptomycin used alone and in combination with tubazid on the brain electric activity was studied in chronic experiments on rabbits with tuberculosis. The electrocorticographical investigations showed that the antibacterial treatment lowered the spontaneous electric activity and reactive capacity of the cortex. It was evident from a narrow amplitude of the main rythm, coefficient and energy of synchronization on rythmic photostimulation and paroxysmal activity withing the theta range. With the account of the high therapeutic effect of the antibacterial treatment evident from minimum affection of the organs with tuberculosis, the above changes in the electrocorticogrammes should be attributed to the neurotropic effect of the drug and not to tuberculosis intoxication. 相似文献