Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Neil A. Littlefield"'
Autor:
Bruce S. Hass, Neil A. Littlefield, Ildikó Csuka, Marina Mikhailova, Gaspar Banfalvi, Ming Wu Chou, Edit Szepessy
Publikováno v:
European Journal of Biochemistry. 267:6580-6585
Repair and replicative DNA synthesis were measured at different stages of the cell cycle in control and cadmium-treated Chinese hamster ovary (CHO-K1) cells. Cells were synchronized by counterflow centrifugal elutriation. Elutriation resulted in five
Publikováno v:
International Journal of Toxicology. 18:297-306
The aim of this study was to develop an in vitro model to investigate the molecular mechanisms of glucose-induced inhibition of cell proliferation. HuH7 cells were grown in the presence or absence of glucose for 7 days and cell proliferation was stim
Publikováno v:
Cell Biology and Toxicology. 10:127-135
Magnesium, an essential metal that is important in the normal functioning of DNA, has been shown to interact with some of the toxic heavy metals in respect to biochemical and molecular mechanisms and in altering the tumorigenic process. This study ex
Publikováno v:
Cancer letters. 115(2)
The effect of cadmium ion (Cd) and ascorbic acid (Asc) on the induction of oxidative DNA damage and on the activities of antioxidant enzymes were investigated in human lymphoblastoid cells (AHH-1 TK+/-). Cd at low concentrations of 5-35 microM induce
Publikováno v:
Chemico-biological interactions. 79(2)
Nickel (Ni), a carcinogenic and genotoxic metal, has been shown to enhance deglycosylation and hydroxylation of 2′-deoxyguanosine (dG) that has been caused by ascorbic acid and H2O2. There is evidence that Mg is a competitive antagonist of the toxi
Publikováno v:
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association. 28(3)
Fischer 344 rats were given 10, 40, 600, 1200 or 2400 ppm sulphamethazine (SMZ) in the diet to determine the toxicity and potential carcinogenicity of SMZ. There were 225 rats of each sex in the control groups and 135 of each sex in each dose group.
Publikováno v:
Fundamental and Applied Toxicology. 3:3a-8a
This communication has re-examined and justified certain of the NCTR's analyses and recommendations from the ED01 Study, which were either misunderstood or misinterpreted by the SOT Task Force. In addition, we have shown that some of the Task Force's
Publikováno v:
Fundamental and Applied Toxicology. 5:902-912
Gentian violet is a dye belonging to a chemical class known as the di- and triaminophenylmethanes. Although it has been used for many years for the control of fungal and intestinal parasites, for various uses in veterinary medicine, and as an additiv
Publikováno v:
JNCI: Journal of the National Cancer Institute. 54:257-261
Studies were made on the urinary bladder of 66 BALB/c mice of both sexes; 21 were fed a normal diet and 45, a diet containing 100-500 parts per million (ppm) of 2-acetylaminofluorene (2-AAF). Bladder epithelial hyperplasia was noted in 22 of 24 mice
Autor:
Neil A. Littlefield, Ralph L. Kodell
Publikováno v:
Journal of Toxicology and Environmental Health. 5:121-129
The importance of the genetic makeup of animals used for toxicological testing has been recognized, although there are few data regarding this. In the study discussed here offspring from a BALB/cStCrlfC3Hf/Nctr male and C57BL/6/fC3Hf/Nctr female cros