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THE EFFECT OF SINGLE X-RAY IRRADIATION ON THE GROWTH OF CEREBRAL CAPILLARIES (in Russian)

Journal Article · · Meditsinskaya Radiologiya (U.S.S.R.) For English translation see Med. Radiol., USSR
OSTI ID:4288715
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Experiments were performed on 31 white rats, aged from 1 to 32 days. The rats were irradiated with 250 r of x rays at different stages of development of brain capillaries. The length of life after the irradiation ranged from 5 to.6 hours to 3 months. 13 rats were irradiated at the age of 14 days (500 r); 20 rats aged from 1 to 60 days served as control. The irradiation of animals at different stages of this process provokes a delay of development followed by an active growth of cerebral capillaries. The intensified growth is replaced by a sharp decrease tn the number of the developing capillaries. In irradiatton of animals during the intensive development of new capillaries in the brain the growth of the capillaries is terminated 1 to 1 1/2 months earlier than in the control white rats. Because of the effect of x rays the density of the capillary network of the brain hemispheres in irradiated animals is much less than that in the control animals. Irradiation of animals during the decline of the process of development of the new cerebral capillaries has no effect on the vaseulo- capillary network of the brain hemispheres. The higher the dose of x rays the greater is the injurious effect. (auth)
Research Organization:
Inst. of Pediatrics, Academy of Medical Sciences, U.S.S.R.
NSA Number:
NSA-13-009619
OSTI ID:
4288715
Journal Information:
Meditsinskaya Radiologiya (U.S.S.R.) For English translation see Med. Radiol., USSR, Journal Name: Meditsinskaya Radiologiya (U.S.S.R.) For English translation see Med. Radiol., USSR Vol. Vol: 4, No. 1; ISSN MERAA
Country of Publication:
Country unknown/Code not available
Language:
Russian

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Related Subjects

AGE
BIOLOGY AND MEDICINE
BLOOD VESSELS
BRAIN
CAPILLARIES
MITOSIS
RADIATION DOSES
RADIATION EFFECTS
RADIATION INJURIES
RATS
REGENERATION
SURVIVAL TIME
X RADIATION