| 1 |
24105445 | Molecular characterization of cancer reveals interactions between ionizing radiation and chemicals on rat mammary carcinogenesis. | 2014 Apr 1 |
2 |
| 2 |
19652463 | Increased H-ras mutation frequency in mammary tumors of rats initiated with N-methyl-N-nitrosourea (MNU) and treated with acrylamide. | 2009 Oct |
2 |
| 3 |
15688392 | Cooperative induction of rat mammary cancer by radiation and 1-methyl-1-nitrosourea via the oncogenic pathways involving c-Myc activation and H-ras mutation. | 2005 Jun 10 |
2 |
| 4 |
10767621 | DNA repair: counteragent in mutagenesis and carcinogenesis-- accomplice in cancer therapy resistance. | 2000 Apr |
1 |
| 5 |
9570390 | Synergistic effect of MNU and DMBA in mammary carcinogenesis and H-ras activation in female Sprague-Dawley rats. | 1997 Nov 25 |
1 |
| 6 |
9591198 | Effect of early vs. late administration of 4-hydroxyphenylretinamide (4-HPR) on N-methyl-N-nitrosourea (MNU)-induced mammary tumorigenesis. | 1997 |
1 |
| 7 |
8769715 | Absence of p53 mutations in methylnitrosourea-induced mammary tumors in rats. | 1996 |
2 |
| 8 |
8895746 | Alterations in H-ras1 promoter conformation during N-nitroso-N-methylurea-induced mammary carcinogenesis and pregnancy. | 1996 Nov 1 |
7 |
| 9 |
8001265 | DNA methylation adduct formation and H-ras gene mutations in progression of N-butyl-N-(4-hydroxybutyl)nitrosamine-induced bladder tumors caused by a single exposure to N-methyl-N-nitrosourea. | 1994 Dec |
3 |
| 10 |
8170982 | N-nitroso-N-methylurea-induced rat mammary tumors arise from cells with preexisting oncogenic Hras1 gene mutations. | 1994 Apr 26 |
1 |
| 11 |
7688078 | Nonrandom distribution of O6-methylguanine in H-ras gene sequence from DNA modified with N-methyl-N-nitrosourea. | 1993 Aug |
1 |
| 12 |
1733572 | K-ras oncogene mutations in rat colon tumors induced by N-methyl-N-nitrosourea. | 1992 Jan |
1 |
| 13 |
1874567 | Mutational activation of c-Ha-ras genes in intraductal proliferation induced by N-nitroso-N-methylurea in rat mammary glands. | 1991 Aug 19 |
1 |
| 14 |
1933853 | Nitrosamine-induced cancer: selective repair and conformational differences between O6-methylguanine residues in different positions in and around codon 12 of rat H-ras. | 1991 Nov 1 |
1 |
| 15 |
1975252 | Absence of H-ras point mutation at codon 12 in N-methyl-N-nitrosourea-induced hepatocellular neoplasms in the rat. | 1990 |
2 |
| 16 |
2116389 | Mutational activation of H-ras and K-ras genes is absent in N-nitroso-N-methylurea-induced liver tumors in rats. | 1990 May |
1 |
| 17 |
2643488 | Excision repair of O6-methylguanine synthesized at the rat H-ras N-methyl-N-nitrosourea activation site and introduced into Escherichia coli. | 1989 Feb |
4 |
| 18 |
3332020 | Involvement of ras oncogenes in the initiation of carcinogen-induced tumors. | 1986 |
2 |
| 19 |
6318112 | Induction of mammary carcinomas in rats by nitroso-methylurea involves malignant activation of H-ras-1 locus by single point mutations. | 1983 Dec 15-21 |
2 |