[Early ultrastructural reactions in various parts of the visual analyzer in guinea pigs after thermogenic microwave irradiation].

A I Ryzhov, S V Logvinov
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引用次数: 0

Abstract

A single total radiation of guinea pigs by means of microwaves of thermogenic intensity (energy density stream 60 mVt/sm2) and exposition for 10 min produces ultrastructural reactions in various parts of the visual analyser, differing in their manifestation degree. The most essential alterative changes have been revealed in the retina, appearing in 6 h after radiation, as degeneration of the membrane disks of the photoreceptors and as enhancement of phagocytic activity of pigmentocytes, and immediately after the radiation--as destructive disturbances of mitochondria in radial glyocytes and as reaction of the synaptic apparatus. In the cerebral visual centers a higher reactivity of neurons of the external geniculate bodies than in the visual cortex is noted, but ultrastructural disturbances of the hematoencephalic barrier and synapses of the visual cortex are more manifested. Early ultrastructural changes in the optic nerve are least manifested.

[热源微波照射后豚鼠视觉分析仪各部位的早期超微结构反应]。
通过产热强度(能量密度流60 mVt/sm2)的微波对豚鼠进行单次全辐射并暴露10分钟,在视觉分析仪的各个部分产生超微结构反应,其表现程度不同。最重要的变化已经在视网膜上被发现,在辐射后6小时内,表现为光感受器膜盘的退化和色素细胞吞噬活性的增强,并且在辐射后立即表现为放射状糖细胞线粒体的破坏性干扰和突触装置的反应。在大脑视觉中心,外曲状体神经元的反应性高于视觉皮层,但脑血屏障和视觉皮层突触的超微结构紊乱更为明显。早期视神经超微结构改变最不明显。
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