Experimental study on the DNA damage of NIH/3T3 cells induced by nickel-refining dusts / 中华劳动卫生职业病杂志
Chinese Journal of Industrial Hygiene and Occupational Diseases
;
(12): 326-328, 2005.
Artículo
en Chino
| WPRIM
| ID: wpr-285886
ABSTRACT
<p><b>OBJECTIVE</b>To study the effects of nickel-refining dusts on DNA damage in mouse NIH/3T3 cell.</p><p><b>METHOD</b>DNA damage of mouse NIH/3T3 cell induced by two nickel-refining dust samples was determined with single cell gel electrophoresis (SCGE) technique.</p><p><b>RESULTS</b>(1) Under the condition of the same treatment time, the tailed cell (%) of NIH/3T3 cells increased with the increase in doses of nickel-refining dusts (35.5%, 69.7%, 85.2%, 41.3%, 75.7%, 89.2% respectively except for sample 2, 50 microg/ml, 24 h group), and DNA strand breaks reached the peak value at 4 h of exposure; (2) When we treated the NIH/3T3 cells with the same dose of nickel-refining dusts, the tail rate at 4 h was higher than those at 2 h and 24 h of exposure; (3) Both sample 1 and sample 2 with different doses of nickel-refining dusts could induce higher comet tail, DNA%, tail length (except for 12.5 microg/ml), extent of TM (except for sample 1, 12.5 microg/ml) than in control group (P < 0.05). The DNA damage range was significantly increased in different tested doses of nickel-refining dusts and the damage range reached the peak value when the cells were treated for 4 h.</p><p><b>CONCLUSION</b>Nickel-refining dusts could induce different degree DNA damage in NIH/3T3 cells.</p>
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Daño del ADN
/
Ciclo Celular
/
Supervivencia Celular
/
Ensayo Cometa
/
Células 3T3 NIH
/
Polvo
/
Toxicidad
/
Metalurgia
/
Níquel
Límite:
Animales
Idioma:
Chino
Revista:
Chinese Journal of Industrial Hygiene and Occupational Diseases
Año:
2005
Tipo del documento:
Artículo
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