Home CONTACT Neoplasma 2009 Neoplasma Vol.56, No.3, p.269-274, 2009

Journal info


6 times a year.
Founded: 1954
ISSN 0028-2685
ISSN 1338-4317 (online)

Published in English

Editorial Info
Abstracted and Indexed
Submission Guidelines

Select Journal







Webshop Cart

Your Cart is currently empty.

Info: Your browser does not accept cookies. To put products into your cart and purchase them you need to enable cookies.

Neoplasma Vol.56, No.3, p.269-274, 2009

Title: Metformin in chemically-induced mammary carcinogenesis in rats
Author: B. BOJKOVA, P. ORENDAS, M. GARAJOVA, M. KASSAYOVA, V. KUTNA, E. AHLERSOVA, I. AHLERS

Abstract: In this paper the chemopreventive effect of peroral antidiabetic metformin in mammary carcinogenesis in female Sprague-Dawley rats was evaluated. Mammary carcinogenesis was induced by N-methyl-N-nitrosourea (NMU) administered in two intraperitoneal doses each per 50 mg/kg b.w. between 43.-55. postnatal days. Metformin was administered in drinking water (at a concentration of 50 µg/ml and 500 µg/ml) 13 days before the first NMU dose until the termination of the experiment. During the experiment the animals were weekly weighed and palpated for the presence of mammary tumors, the incidence, latency, tumor frequency, and tumor volume were recorded. The experiment was terminated 18 weeks after the first NMU dose, basic tumor growth parameters and metabolic and hormonal variables were evaluated. Metformin did not significantly alter the tumor growth although a delay in tumor onset was recorded after higher metformin dose. Metformin altered metabolic and hormonal variables. Insulinemia decreased after both metformin doses in comparison with intact rats without changes in glycemia, triacylglycerols concentration was decreased in liver and increased in serum when compared to intacts. Higher metformin dose attenuated lipoperoxidation in liver.

Keywords: metformin, mammary carcinogenesis, rat, metabolism
Year: 2009, Volume: 56, Issue: 3 Page From: 269, Page To: 274
doi:10.4149/neo_2009_03_269
Price: 14.40 €






© AEPress s.r.o
Copyright notice: For any permission to reproduce, archive or otherwise use the documents in the ELiS, please contact AEP.