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Contents volume 191 (1987)
Mutation Research, 191 (1987) 217-218 Elsevier
217
Contents Volume 191 (1987) Research Letters Influence of $9 mix in the induction of SOS system by quercetin (MTRL 0978) bv M. klagostera, S. Garrido, J. Barb6, R. Guerrero and J. Rueff (Spain and Portugal) . . . . . . . . . . . . . . . . . . . . . . . . . .
Dose-response relationship for chromosome aberrations induced by fecapentaene-12 in human lymphocytes (MTRL 0979) bv E. Schmid, M. Bauchinger, H. Brasehnann, H.R. Pfaendler and W. Goggelmann (F.R.G.) . . . . . . . . . . . . . . . . . . . . . UV response of the temperature-conditional rad 54 mutant of the yeast Saccharomyces cerevisiae (MTRL 0980) bv J. Kiefer (W. Germany) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Inhibition of pyrimidine dimer excision in ultraviolet-irradiated Escherichia coli overproducing RecA protein (MTRL 0981) by M. Sedliakovfi, K. Klein and F. Magek (Czechoslovakia) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Genotoxicity studies with two antichagasic drugs (MTRL 0982) by R. Nagel (Argentina) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Structure-activity relationships of the N-methylcarbamate series in Salmonella typhimurium (MTRL 0983) bv J.F. Narbonne, P. Cassand, P. Alzieu, P. Grolier, G. Mrlina and J.P. Calmon (France) . . . . . . . . . . . . . . . . . . . . . . . The cell-cycle dependent and the DNA-damaging agent-induced changes of cellular NAD content and their significance (MTRL 0984) by Y. Dai, Y. Yu and X. Chen (People's Republic of China) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Enhancing effects of cytosine arabinoside on ethyl methanesulfonate-induced 6-thioguanine resistance mutations in Chinese hamster V79 cells (MTRL 0985) by K. Tachi-Shinkawa, Y. Kuroda, K. Morimoto and A. Koizumi (Japan) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mutagenicity studies in Drosophila melanogaster with Lannate 20 (MTRL 0987) by K.C. Hemavathy and N.B. Krishnamurthy (India) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A test using cultured cells with induced mixed-function oxygenase in the unscheduled DNA synthesis assay for detecting promutagens/procarcinogens (MTRL 0988) by L. Sun, Y. Yu and X. Chen (People's Republic of China) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Antioxidanls inhibit the effect of vitamin C on oxygen radical-induced sister-chromatid exchanges (MTRL 0993) by A.B. Weitberg (U.S.A.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Exposure of nuclear medicine patients to ionizing radiation is associated with rises in HPRT mutant frequency in peripheral T-lymphocytes (MTRL 1002) by A.M. Seifert, W.E.C. Bradley and K. Messing (Canada) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A ntlOl~m.'ement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Research Letters The effect of dietary imbalances on the activation of benzo[a]pyrene by the metabolizing enzymes from rat liver (MTRL 0992) by P. Cassano, D. Bonnamour, P. Grolier, M.A. Pelissier, Z. Amelizad, R. Albrecht and J.F. Narbonne (France and F.R.G.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mutagenic reactivities of 3,4-dinitrobiphenyl derivatives (MTRL 0994) by T. Hirayama, H. Kusakabe, T. Watanabe, M. Ono and S. Fukui (Japan) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mutagenicity studies of oCo~'-dihalomethylbenzenes, c,-methylbenzyl halides, and 1-chloromethylpyrene in the Ames assay (MTR[. 01003) by J.C. Ball and W.C. Young (U.S.A.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dinitrofluoranthene: induction, identification and gene mutation (MTRL 01004) by R. Nakagawa, K. Horikawa, N. Sera, Y. Kodera and H. Tokiwa (Japan) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Effects of benzamide pretreatment on clastogenic adaptation of Viciafaba root-tip meristem cells to triethylenemelamine (TEM) and maleic hydrazide (MH) (MTRL 01001) by R. Rieger, A. Michaelis and O. Aurich (D.D.R.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0165-7992/87/$03.50 <3 1987 Elsevier Science Publishers B.V. (Biomedical Division)
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Chromosomal aberrations in cultured human lymphocytes treated with aldicarb, a carbamate pesticide (MTRL 0996) by M. Gonzfilez Cid and E. Matos (Argentina) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Chromosomal aberrations and sister-chromatid exchanges in swine (MTRL 0998) by J. Rubeg (Czechoslovakia) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Studies on somatic mutation induction in the mouse with isoniazid and hydrazine (MTRL 1006) by A. Neuh~iuser-Klaus and P.S. Chauhan (F.R.G. and India) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Complememation studies in cells from patients affected by trichothiodystropby with normal or enhanced UV photosensitivity (MTRL 0995) by M. Stefanini, P. Lagomarsini, R. Giorgi and F. Nuzzo (Italy) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sister-chromatid exchanges in newborns after normal and progesterone-treated pregnancies (MTRL 0997) by B. Lukid and N. Barjaktarovie (Yugoslavia) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The proper evaluation of bile acid mutagenicity by a fluctuation test (MTRL 1000) by H. Bernstein (U.S.A.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . L e t l e r Io lhe E d i t o r (MTRL 1007) by S. Venitt, D. Bosworth and D.F. Easton (Grc,,t Britain) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
99 105 111
117 121 125 129
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Formation of a mutagen, 2-amino-l-methyl-6-phenylimidazo[4,5-b]pyridine (PhlP) in cooked beef, by heating a mixture containing creatinine, pbenylalanine and glucose (MTRL 013) by M. Shioya, K. Wakabayashi, S. Sato, M. Nagao and T. Sugimura (Japan) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Peroxidative activation of 3,3'-dichlorobenzidine to mutagenic products in the S a l m o n e l l a t y p h i n m r i t # n test (MTRL 015) by B. Lang and M.M. lba (U.S.A.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Clusters of premeiotic ring-X chromosome loss are not observed in males of D r o s o p h i l a m e l a n o g a s t e r (MTRL 014) by R.C. Woodruff, M.A. Seeger and E.S. Norris (U.S.A.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Plant cells at different stages in their growth curve differentially activate promutagens (MTRL 023) by J.M. Gentile, D. Heydenburg, L. Hertel and M.J. Plewa (U.S.A.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Persistence of micronuclei in the marine mussel, M y t i l u s galloprovincialis, after treatment with mitomycin C (MTRL 012) by F. Majone, R. Bruneni, I. Gola and A.G. Levis (Italy) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A search for radiosensitive mouse mutants by use of the micronucleus technique (MTRL 1009) by P.P.W. van Buul, A. Tuinenburg-Bolraap, A.G. Searle and A.T. Natarajan (The Netherlands and Great Britain) . Dominant lethal mutations induced in mouse spermatogonia by mechlorethamine, procarbazine and vincristine administered in 2-drug and 3-drug combinations (MTRL 1008) by L.S. Goldstein (U.S.A.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The pR plasmid: a tool for discriminating between DNA lesions induced by different types of cytotoxic agents in cultured mammalian cells (MTRL 011) by R. Elli, A. Antonelli, P. Petrinelli, R. Bosi, F. Gigliani and L. Marcucci (Italy) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mutagenicity and clastogenicity of adriamycin in L5178Y/TK + / -3.7.2C mouse lymphoma cells (MTRL 010) by M.M. Moore, K.H. Brock, C.L. Doerr and D.M. DeMarini (U.S.A.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The effect of c-2-oxothiazolidine on glutathione levels in cultured mammalian cells (MTRL 018) by A.B. Weitberg (U.S.A.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Effects of vanillin on sister-cbromatid exchanges and chromosome aberrations induced by mitomycin C in cultured Chinese hamster ovary cells (MTRL 027) by Y.F. Sasaki, H. lmanishi, T. Ohta and Y. Shirasu (Japan) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Difference in O%methylguanine methyltransferase activity among transformed NIH3T3 cell clones (MTRL 022) by H. Mitani, K. lto, M. Fujino and H. Takebe (Japan) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Chromium chloride induces chromosomal aberrations in human lymphocytes via indirect action (MTRL 016) by J. Friedman, F. Shabtai, L.S. Levy and M. Djaldetti (Israel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The use of bromodeoxyuridine labeling in the human lymphocyte HGPRT somatic mutation assay (MTRL 1005) by P. Ostrosky-Wegman, M.R. Montero, C . C . de Nava, R.R. Tice and R. Albertini (Mexico and U.S.A.) . . . . . . . . . . A nrlouncement ............................................................................................ C o n t e n t s , Vol. 191 (1987) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
133 139 145 151 157 163
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Contents Volume 191 (1987) Research Letters Influence of $9 mix in the induction of SOS system by quercetin (MTRL 0978) bv M. klagostera, S. Garrido, J. Barb6, R. Guerrero and J. Rueff (Spain and Portugal) . . . . . . . . . . . . . . . . . . . . . . . . . .
Dose-response relationship for chromosome aberrations induced by fecapentaene-12 in human lymphocytes (MTRL 0979) bv E. Schmid, M. Bauchinger, H. Brasehnann, H.R. Pfaendler and W. Goggelmann (F.R.G.) . . . . . . . . . . . . . . . . . . . . . UV response of the temperature-conditional rad 54 mutant of the yeast Saccharomyces cerevisiae (MTRL 0980) bv J. Kiefer (W. Germany) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Inhibition of pyrimidine dimer excision in ultraviolet-irradiated Escherichia coli overproducing RecA protein (MTRL 0981) by M. Sedliakovfi, K. Klein and F. Magek (Czechoslovakia) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Genotoxicity studies with two antichagasic drugs (MTRL 0982) by R. Nagel (Argentina) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Structure-activity relationships of the N-methylcarbamate series in Salmonella typhimurium (MTRL 0983) bv J.F. Narbonne, P. Cassand, P. Alzieu, P. Grolier, G. Mrlina and J.P. Calmon (France) . . . . . . . . . . . . . . . . . . . . . . . The cell-cycle dependent and the DNA-damaging agent-induced changes of cellular NAD content and their significance (MTRL 0984) by Y. Dai, Y. Yu and X. Chen (People's Republic of China) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Enhancing effects of cytosine arabinoside on ethyl methanesulfonate-induced 6-thioguanine resistance mutations in Chinese hamster V79 cells (MTRL 0985) by K. Tachi-Shinkawa, Y. Kuroda, K. Morimoto and A. Koizumi (Japan) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mutagenicity studies in Drosophila melanogaster with Lannate 20 (MTRL 0987) by K.C. Hemavathy and N.B. Krishnamurthy (India) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A test using cultured cells with induced mixed-function oxygenase in the unscheduled DNA synthesis assay for detecting promutagens/procarcinogens (MTRL 0988) by L. Sun, Y. Yu and X. Chen (People's Republic of China) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Antioxidanls inhibit the effect of vitamin C on oxygen radical-induced sister-chromatid exchanges (MTRL 0993) by A.B. Weitberg (U.S.A.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Exposure of nuclear medicine patients to ionizing radiation is associated with rises in HPRT mutant frequency in peripheral T-lymphocytes (MTRL 1002) by A.M. Seifert, W.E.C. Bradley and K. Messing (Canada) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A ntlOl~m.'ement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Research Letters The effect of dietary imbalances on the activation of benzo[a]pyrene by the metabolizing enzymes from rat liver (MTRL 0992) by P. Cassano, D. Bonnamour, P. Grolier, M.A. Pelissier, Z. Amelizad, R. Albrecht and J.F. Narbonne (France and F.R.G.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mutagenic reactivities of 3,4-dinitrobiphenyl derivatives (MTRL 0994) by T. Hirayama, H. Kusakabe, T. Watanabe, M. Ono and S. Fukui (Japan) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mutagenicity studies of oCo~'-dihalomethylbenzenes, c,-methylbenzyl halides, and 1-chloromethylpyrene in the Ames assay (MTR[. 01003) by J.C. Ball and W.C. Young (U.S.A.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dinitrofluoranthene: induction, identification and gene mutation (MTRL 01004) by R. Nakagawa, K. Horikawa, N. Sera, Y. Kodera and H. Tokiwa (Japan) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Effects of benzamide pretreatment on clastogenic adaptation of Viciafaba root-tip meristem cells to triethylenemelamine (TEM) and maleic hydrazide (MH) (MTRL 01001) by R. Rieger, A. Michaelis and O. Aurich (D.D.R.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0165-7992/87/$03.50 <3 1987 Elsevier Science Publishers B.V. (Biomedical Division)
1
5 9 13 17 21
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37 41
45 53
57 65
67
73
79 85
93
218
Chromosomal aberrations in cultured human lymphocytes treated with aldicarb, a carbamate pesticide (MTRL 0996) by M. Gonzfilez Cid and E. Matos (Argentina) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Chromosomal aberrations and sister-chromatid exchanges in swine (MTRL 0998) by J. Rubeg (Czechoslovakia) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Studies on somatic mutation induction in the mouse with isoniazid and hydrazine (MTRL 1006) by A. Neuh~iuser-Klaus and P.S. Chauhan (F.R.G. and India) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Complememation studies in cells from patients affected by trichothiodystropby with normal or enhanced UV photosensitivity (MTRL 0995) by M. Stefanini, P. Lagomarsini, R. Giorgi and F. Nuzzo (Italy) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sister-chromatid exchanges in newborns after normal and progesterone-treated pregnancies (MTRL 0997) by B. Lukid and N. Barjaktarovie (Yugoslavia) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The proper evaluation of bile acid mutagenicity by a fluctuation test (MTRL 1000) by H. Bernstein (U.S.A.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . L e t l e r Io lhe E d i t o r (MTRL 1007) by S. Venitt, D. Bosworth and D.F. Easton (Grc,,t Britain) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
99 105 111
117 121 125 129
Research Lelletw
Formation of a mutagen, 2-amino-l-methyl-6-phenylimidazo[4,5-b]pyridine (PhlP) in cooked beef, by heating a mixture containing creatinine, pbenylalanine and glucose (MTRL 013) by M. Shioya, K. Wakabayashi, S. Sato, M. Nagao and T. Sugimura (Japan) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Peroxidative activation of 3,3'-dichlorobenzidine to mutagenic products in the S a l m o n e l l a t y p h i n m r i t # n test (MTRL 015) by B. Lang and M.M. lba (U.S.A.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Clusters of premeiotic ring-X chromosome loss are not observed in males of D r o s o p h i l a m e l a n o g a s t e r (MTRL 014) by R.C. Woodruff, M.A. Seeger and E.S. Norris (U.S.A.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Plant cells at different stages in their growth curve differentially activate promutagens (MTRL 023) by J.M. Gentile, D. Heydenburg, L. Hertel and M.J. Plewa (U.S.A.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Persistence of micronuclei in the marine mussel, M y t i l u s galloprovincialis, after treatment with mitomycin C (MTRL 012) by F. Majone, R. Bruneni, I. Gola and A.G. Levis (Italy) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A search for radiosensitive mouse mutants by use of the micronucleus technique (MTRL 1009) by P.P.W. van Buul, A. Tuinenburg-Bolraap, A.G. Searle and A.T. Natarajan (The Netherlands and Great Britain) . Dominant lethal mutations induced in mouse spermatogonia by mechlorethamine, procarbazine and vincristine administered in 2-drug and 3-drug combinations (MTRL 1008) by L.S. Goldstein (U.S.A.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The pR plasmid: a tool for discriminating between DNA lesions induced by different types of cytotoxic agents in cultured mammalian cells (MTRL 011) by R. Elli, A. Antonelli, P. Petrinelli, R. Bosi, F. Gigliani and L. Marcucci (Italy) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mutagenicity and clastogenicity of adriamycin in L5178Y/TK + / -3.7.2C mouse lymphoma cells (MTRL 010) by M.M. Moore, K.H. Brock, C.L. Doerr and D.M. DeMarini (U.S.A.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The effect of c-2-oxothiazolidine on glutathione levels in cultured mammalian cells (MTRL 018) by A.B. Weitberg (U.S.A.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Effects of vanillin on sister-cbromatid exchanges and chromosome aberrations induced by mitomycin C in cultured Chinese hamster ovary cells (MTRL 027) by Y.F. Sasaki, H. lmanishi, T. Ohta and Y. Shirasu (Japan) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Difference in O%methylguanine methyltransferase activity among transformed NIH3T3 cell clones (MTRL 022) by H. Mitani, K. lto, M. Fujino and H. Takebe (Japan) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Chromium chloride induces chromosomal aberrations in human lymphocytes via indirect action (MTRL 016) by J. Friedman, F. Shabtai, L.S. Levy and M. Djaldetti (Israel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The use of bromodeoxyuridine labeling in the human lymphocyte HGPRT somatic mutation assay (MTRL 1005) by P. Ostrosky-Wegman, M.R. Montero, C . C . de Nava, R.R. Tice and R. Albertini (Mexico and U.S.A.) . . . . . . . . . . A nrlouncement ............................................................................................ C o n t e n t s , Vol. 191 (1987) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
133 139 145 151 157 163
171
177 183 189
193 201 207 211 215 217