PT - JOURNAL ARTICLE AU - KATALIN GOMBOS AU - TÍMEA VARJAS AU - ZSUZSANNA ORSÓS AU - ÉVA POLYÁK AU - JUDIT PEREDI AU - ZSUZSANNA VARGA AU - GHODRATOLLAH NOWRASTEH AU - ANTAL TETTINGER AU - GYULA MUCSI AU - ISTVÁN EMBER TI - The Effect of Aspartame Administration on Oncogene and Suppressor Gene Expressions DP - 2007 Jan 01 TA - In Vivo PG - 89--92 VI - 21 IP - 1 4099 - http://iv.iiarjournals.org/content/21/1/89.short 4100 - http://iv.iiarjournals.org/content/21/1/89.full SO - In Vivo2007 Jan 01; 21 AB - Background: Aspartame (L-phenylalanine N-L-α-aspartyl-1-methyl ester) is an artificial sweetener with widespread applications. Previously published results have shown that among rats receiving aspartame a significant increase of lymphoreticular neoplasms, brain tumours and transitional cell tumours occurred. The aim of our short-term experiment was to investigate the biological effect of aspartame consumption by determining the expressions of key oncogenes and a tumour suppressor gene. Materials and Methods: After one week per os administration of various doses of aspartame to CBA/CA female mice, p53, c-myc, Ha-ras gene expression alterations were determined in individual organs. Results: The results showed an increase in gene expressions concerning all the investigated genes especially in organs with a high proliferation rate: lymphoreticular organs, bone-marrow and kidney. Conclusion: Aspartame has a biological effect even at the recommended daily maximum dose. Copyright © 2007 International Institute of Anticancer Research (Dr. John G. Delinassios), All rights reserved