Abstract:
PURPOSE:Aim of this study was to identify a possible relationship among dietary fatty acids (FA) intake, FA adipose tissue (AT) profile and cancer condition in lean vs obese subjects affected or not by colorectal cancer (CRC). Actually, inadequate dietary habits together with physical inactivity are primary determinants of obesity and cancer risk. Changes in lipid metabolism play a crucial role in different types of cancer and key enzymes involved in lipid-metabolic pathways, such as stearoyl-coA-desaturase 1 (SCD-1), are differentially expressed in normal and cancer tissues. METHODS:Food frequency questionnaires (FFQ) were analyzed by Winfood software. FA were assessed by gas-liquid chromatography in visceral AT samples. Estimated desaturase activities were calculated as precursor FA/product FA ratio. Desaturase gene expressions were evaluated by RT-qPCR. RESULTS:Lean and obese CRC subjects showed inadequate dietary habits. In particular, lean CRC subjects showed increase in the intake of saturated FA, specifically palmitic (p = 0.0042) and stearic acid (p = 0.0091), and a corresponding reduction of monounsaturated FA consumption, in particular oleic acid (p = 0.002) with respect to lean without CRC. Estimated SCD-1 activity in AT was increased in all the groups vs lean without CRC (pANOVA = 0.029). CONCLUSIONS:Unhealthy eating habits, characterizing obese and CRC subjects, may influence the visceral AT profile and contribute to the alteration of the metabolic pathways. The quality of the diet, other than the quantity, can have a main role in the establishment of inflammatory microenvironment and in metabolic changes favouring CRC.
journal_name
Eur J Nutrjournal_title
European journal of nutritionauthors
Scazzocchio B,Varì R,Silenzi A,Giammarioli S,Masotti A,Baldassarre A,Santangelo C,D'Archivio M,Giovannini C,Del Cornò M,Conti L,Gessani S,Masella Rdoi
10.1007/s00394-019-02003-7subject
Has Abstractpub_date
2020-06-01 00:00:00pages
1463-1472issue
4eissn
1436-6207issn
1436-6215pii
10.1007/s00394-019-02003-7journal_volume
59pub_type
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