Abstract
The ability of essential fatty acids (EFAs) to modulate radiation-induced normal tissue injury was assessed in pig skin. Female Large White pigs (approximately 25 Kg) received 3 ml/day orally of either an 'active' oil [So-1100, containing 9% gamma-linolenic acid (GLA)] or a 'placebo' oil (So-1129) for just 4 weeks before or for 4 weeks before and for 16 weeks after irradiation; localised irradiation of skin was with single doses of beta-rays from 22.5 mm diameter 90Sr/90Y plaques. The severity of the acute reaction, assessed in terms of erythema or moist desquamation, was significantly less in those pigs that received So-1100 both before and after irradiation, as compared with those receiving that oil only prior to irradiation and the 'placebo' groups. Dose modification factors (DMFs) of between 1.13-1.24 were obtained. A similar reduction in the severity of acute skin injury was seen in pigs receiving So-1100 for only 10 weeks after irradiation. Late skin damage, assessed in terms of late erythema or dermal necrosis, was also reduced with So-1100, with DMFs of 1.14-1.51. No such modification was observed if So-1100 was only administered for 4 weeks prior to irradiation. No adverse side-effects were apparent as a result of EFA administration. So-1100 may represent a safe and valuable method of increasing the therapeutic gain in radiotherapy.
Similar content being viewed by others
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Hopewell, J., Robbins, M., van den Aardweg, G. et al. The modulation of radiation-induced damage to pig skin by essential fatty acids. Br J Cancer 68, 1–7 (1993). https://doi.org/10.1038/bjc.1993.276
Issue Date:
DOI: https://doi.org/10.1038/bjc.1993.276
- Springer Nature Limited
This article is cited by
-
Clinical application of C18 and C20 chain length polyunsaturated fatty acids and their biotechnological production in plants
Journal of the American Oil Chemists' Society (2006)
-
Prophylaxe und Therapie akuter Strahlenfolgen an Haut und Schleimhaut
Strahlentherapie und Onkologie (1998)
-
Polyunsaturated fatty acids increase the sensitivity of 36B10 rat astrocytoma cells to radiation‐induced cell kill
Lipids (1997)
-
Therapeutische Beeinflussung der radiogenen oralen Mukositis
Strahlentherapie und Onkologie (1997)