Prives M G, Kosourov A K, Stepantsov V I, Kibiakov A V, Prokopovich N B
Arkh Anat Gistol Embriol. 1977 May;72(5):97-104.
In dogs subjected to gravitational overloadings (+Gx) according to a special training schedule the wall structure of the main arteries (carotid, humeral, femoral and aorta) was studied by histological methods. The amount of catecholamines (adrenaline and noradrenaline) in the venous blood plasma and in the adrenal tissue was the index of the sympathoadrenal system condition. It was demonstrated that in trained animals the tolerance threshold to continuously increasing overloadings (+Gx) rose. It was accompanied by an elevated amount of catecholamines in blood and the adrenals In the walls of the main arteries studied a moderate hyperelastosis and a slight collagenization of the adventitia was noted. All parts of the microcirculatory bed were moderately dilated, which favoured a better blood outflow. The data obtained demonstrate adaptational changes, which can be interpreted as indices of training and reliability of the organism.
按照特殊训练计划对狗施加重力过载（+Gx）后，采用组织学方法研究了主要动脉（颈动脉、肱动脉、股动脉和主动脉）的管壁结构。静脉血浆和肾上腺组织中儿茶酚胺（肾上腺素和去甲肾上腺素）的含量是交感肾上腺系统状况的指标。结果表明，经过训练的动物对持续增加的过载（+Gx）的耐受阈值提高。这伴随着血液和肾上腺中儿茶酚胺含量的升高。在所研究的主要动脉壁中，发现外膜有中度弹性组织增生和轻度胶原化。微循环床的所有部分均有中度扩张，这有利于更好的血液流出。所获得的数据表明了适应性变化，可将其解释为机体训练和可靠性的指标。
