Table of Contents
Conference Papers in Medicine
Volume 2013 (2013), Article ID 386913, 2 pages
Conference Paper

Report of the Pilot Study Done for the Proposed Investigation on the Possible Synergic Effect between High-Dose Ascorbic Acid Application and Oncothermia Treatment

1Pharmacology and Toxicology Department, Faculty of Veterinary Science, Szent Istvan University, Budapest 1078, Hungary
21st Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest 1085, Hungary
3University of Tottori, Tottori 680-8550, Japan
4Biotechnics Department, Faculty of Mechanical Engineering, Szent Istvan University, Gödöllő 2100, Hungary

Received 15 January 2013; Accepted 17 April 2013

Academic Editors: G. F. Baronzio, M. Jackson, and A. Szasz

This Conference Paper is based on a presentation given by Csaba Kovago at “Conference of the International Clinical Hyperthermia Society 2012” held from 12 October 2012 to 14 October 2012 in Budapest, Hungary.

Copyright © 2013 Csaba Kovago et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


According to recent investigations, the parenteral application of ascorbic acid (vitamin C) at high doses has significant antitumor activity in in vitro assays. The goal of our experiment was to determine the possible potentiating effect of application of high dose pH-neutralized ascorbic acid to the normal oncothermia treatment method. The NMRI mice were inoculated with C26 murine colon carcinoma cell line subcutaneously at both of their femoral regions and were kept till the tumors reached symmetrically 10 mm in diameter. We created four experimental groups, containing 5 male and 5 female animals in each. Both vitamin-C and oncothermia treatments were applied once; ascorbic acid was applied intra-peritoneally. Oncothermia treatment was applied only to the right limb tumor; the other side will be used as internal control. After the treatment, the animals were sacrificed, and all tumors were removed and analyzed histopathologically. Our main question centers on the comparison of the cell destruction ratio of the various applied treatment regimes, and studies the possible synergy or additive cross-potentiating of the methods. The results of this experiment turned out to be controversial, since the ascorbic acid did not change the remission rate of the allografts and showed no synergy with oncothermia.