共查询到20条相似文献,搜索用时 15 毫秒
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P Tanganelli P Toti E Weber L Resi B Chini 《Bollettino della Società italiana di biologia sperimentale》1984,60(3):549-551
The presence of the diffuse intimal thickening (DIT) is commonly considered the structural basis for the early atherosclerotic involvement of the coronary arteries. In the ambit of a systematic morphometric comparison of experimental atherosclerotic plaques of aorta and coronaries, we have studied the coronary medio-intimal junctions of 4 months old rabbits. Both at sub-epicardic and intra-myocardic coronary arteries level we have found fiber structures similar to DIT. These findings may help explaining why coronary atherosclerosis in rabbits does not represent, in the usual experimental models, a lesion particularly severe nor of precocious appearance. 相似文献
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A 73-year-old man was referred to the outpatient clinic because of an aortic stenosis and angina pectoris (NYHA class 2). An exercise stress test was abnormal suggesting ischaemia. 相似文献
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Muriel Purkiss 《BMJ (Clinical research ed.)》1982,284(6322):1117-1118
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Robert M. Shelden Garth F. Essing Vernon C. Stevens 《Primates; journal of primatology》1977,18(2):459-463
Five sexually mature and regularly ovulating baboons (Papio cyanocephalus) were subjected to bilateral oviducal cannulation. Prior to failure of the primary cannulation, peri-ovulatory fluids were
collected during three menstrual cycles from one animal, during two cycles from a second animal, and during a single cycle
from each of two additional animals. These four animals were subsequently recannulated and oviducal fluids obtained during
six additional cycles, but tubal fluid collection after the second procedure was generally less satisfactory than following
the initial manipulation. Two attempted cannulations in the fifth animal did not result in oviducal fluid collection.
Of the 13 menstrual cycles during which tubal fluid was collected, four were apparently anovulatory. Collections from two
of these as well as from three ovulatory cycles were characterized by erratic flow and mucous-blood contamination. Tubal fluids
were collected without apparent technical interference or serum contamination from six ovulatory and two anovulatory cycles.
Maximum volumes (1.77±.34 ml/oviduct/24 hours) of tubal fluids were collected during the 48 hours following the midcycle LH
peak. Thereafter, the rate of oviducal fluid collection declined rapidly. 相似文献