scholarly journals Heritable Non-lethal Damage to Cultured Human Cells Irradiated with Heavy Ions

2002 ◽  
Vol 43 (S) ◽  
pp. S187-S191 ◽  
Author(s):  
JAMES T. WALKER ◽  
PAUL TODD ◽  
OLIVIA A. WALKER
1985 ◽  
Vol 104 (2) ◽  
pp. S5 ◽  
Author(s):  
Paul Todd ◽  
James C. S. Wood ◽  
James T. Walker ◽  
Steven J. Weiss

1985 ◽  
Vol 8 ◽  
pp. S5 ◽  
Author(s):  
Paul Todd ◽  
James C. S. Wood ◽  
James T. Walker ◽  
Steven J. Weiss

2002 ◽  
Vol 72 (3) ◽  
pp. 147-153 ◽  
Author(s):  
Kei-Ichi Hirai ◽  
Jie-Hong Pan ◽  
Ying-Bo Shui ◽  
Eriko Simamura ◽  
Hiroki Shimada ◽  
...  

The possible protection of cultured human cells from acute dioxin injury by antioxidants was investigated. The most potent dioxin, 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), caused vacuolization of the smooth endoplasmic reticulum and Golgi apparatus in cultured human conjunctival epithelial cells and cervical cancer cells. Subsequent nuclear damage included a deep irregular indentation resulting in cell death. A dosage of 30–40 ng/mL TCDD induced maximal intracellular production of H2O2 at 30 minutes and led to severe cell death (0–31% survival) at two hours. A dose of 1.7 mM alpha-tocopherol or 1 mM L-dehydroascorbic acid significantly protected human cells against acute TCDD injuries (78–97% survivals), but vitamin C did not provide this protection. These results indicate that accidental exposure to fatal doses of TCDD causes cytoplasmic free radical production within the smooth endoplasmic reticular systems, resulting in severe cytotoxicity, and that vitamin E and dehydroascorbic acid can protect against TCDD-induced cell damage.


2008 ◽  
Vol 228 (1) ◽  
pp. 59-67 ◽  
Author(s):  
Takafumi Ochi ◽  
Kayoko Kita ◽  
Toshihide Suzuki ◽  
Alice Rumpler ◽  
Walter Goessler ◽  
...  

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