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Omega-3 fatty acids: physiology,biological sources and potential applications in supportive cancer care
Authors:L. Pottel  M. Lycke  T. Boterberg  I. Foubert  H. Pottel  F. Duprez  L. Goethals  P. R. Debruyne
Affiliation:1. Cancer Center, General Hospital Groeninge, Loofstraat 43, 8500, Kortrijk, Belgium
2. Department of Radiation Oncology, Ghent University Hospital, Ghent, Belgium
3. Subfaculty of Sciences, Catholic University of Leuven Kulak, Kortrijk, Belgium
4. Subfaculty of Medicine, Catholic University of Leuven Kulak, Kortrijk, Belgium
Abstract:The impact of the Western diet on chronic diseases, such as cancer, has been well recognized. Dietary saturated and trans fatty acids have been found to play a negative role in obesity, heart disease, diabetes and cancer, while the beneficial health effects of n-3 polyunsaturated fatty acids (n-3 PUFAs) have become widely accepted. Despite the current knowledge, n-3 PUFA intake is still under recommended daily intake levels in Europe. As wild fish, currently still the major source of n-3 PUFA, are facing a decline, alternative sources such as marine and plant (both natural and transgenic) sources are being explored. In this review we aim to provide an overview of the current biological sources of n-3 PUFAs, their part in normal physiology, as well as their emerging application in supportive cancer care, and more specifically in cancer cachexia, therapy-related neurocognitive dysfunction and distress. In addition, we provide a brief summary of currently ongoing clinical trials examining potential beneficial effects of n-3 PUFAs in reducing cancer(therapy)-related side effects, and describe future research directions.
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