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1.
Rev. bras. ciênc. morfol ; 7/8(2/1): 33-7, jul.-jun. 1990/1991. ilus, tab, graf
Article in Portuguese | LILACS | ID: lil-163767

ABSTRACT

Foi estudado o efeito agudo dos raios X, na dose de 154,8mC/kg (660R), exposiçao de corpo inteiro, em núcleos de células do túbulo contorcido proximal de rins de camundongos C57BL, utilizando uma análise morfométrica. A partir dos resultados das contagens de núcleos claros (com predomínio de eucromatina) e escuros (com predomínio de heterocromatina) pôde-se constatar um aumento de hiperecromatismo no período de tempo de 72 horas após a açao dos raios X, o que permitiu estabelcer um novo parâmetro para avaliar os efeitos da radiaçao em rim: o índice de hipercromatismo nuclear.


Subject(s)
Animals , Male , Mice , Cell Count/radiation effects , Radiation Injuries, Experimental/pathology , Kidney Tubules/radiation effects , Time Factors , Whole-Body Irradiation
2.
Indian J Exp Biol ; 1991 Jan; 29(1): 83-5
Article in English | IMSEAR | ID: sea-60852

ABSTRACT

Adult female Swiss albino mice were exposed to 0.6, 1.2 and 2.4 Gy of 60Co gamma radiations in presence and absence of MPG. Quantitative studies were done in serial sections of ovary at 1, 3, 5, 7, 14 and 35 days after exposure. Primary follicles were found to be most radiosensitive. The depletion in the various types of follicles was checked to some extent by prior administration of MPG, but MPG could not prevent the complete elimination of all types of follicles by the last autopsy interval studied.


Subject(s)
Animals , Cell Count/radiation effects , Female , Gamma Rays , Mice , Oocytes/radiation effects , Ovary/radiation effects , Radiation-Protective Agents/pharmacology , Tiopronin/pharmacology
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