Conjugated linoleic acid as a potential protective factor in prevention of breast cancer
Journal Title: Advances in Hygiene and Experimental Medicine - Year 2013, Vol 67, Issue 0
Abstract
Cancers are the second leading cause of deaths in Poland, among both women and men. Breast cancer is the malignancy most frequently diagnosed in women. In 2008 mammary cancer was diagnosed in up to 14 500 patients. It is also the second most common cause of cancer deaths among women in our country. Although the etiology of most cases of this disease is not known, risk factors include a variety of nutritional factors. The amount of fat consumed in the diet and the quantity and quality of fatty acids are especially crucial. Among fatty acids to which great importance in modification of cancer risk is attributed are conjugated linoleic acid. Conjugated linoleic acids (CLA) are a group of positional and geometric isomers of linoleic acid, with a conjugated double bond system in the carbon chain. The main natural source of them is milk and dairy products and meat of different species of ruminants, in which cis-9, trans-11 octadecadienoic acid (rumenic acid) occurs in the largest quantities, constituting over 90% of the total pool of CLA. Another important isomer is trans-10, cis-12 octadecadienoic acid, which occurs with rumenic acid in dietary supplements, usually in the ratio 1:1. Surveys conducted show their possible health promoting effects in obesity, atherosclerosis, cardiovascular diseases, osteoporosis, diabetes, insulin resistance, inflammation, and various types of cancer, especially breast cancer.
Authors and Affiliations
Agnieszka Białek, Andrzej Tokarz
Keywords
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