2002
DOI: 10.4067/s0717-75182002000200006
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Oxidos Del Colesterol (Oxisteroles): Factores Que Condicionan Su Formacion, Efectos Biologicos, Y Su Presencia en Los Alimentos

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Cited by 4 publications
(4 citation statements)
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“…The consumption of saturated fatty acids (SFA), trans-fatty acids, cholesterol and oxysterol increases degenerative arterial process. On the contrary, unsaturated fatty acids (UFA) are an equilibrium factor to the fatty acid metabolism (Valenzuela et al 1998;Valenzuela 1997).…”
Section: Fatty Acid Compositionmentioning
confidence: 99%
“…The consumption of saturated fatty acids (SFA), trans-fatty acids, cholesterol and oxysterol increases degenerative arterial process. On the contrary, unsaturated fatty acids (UFA) are an equilibrium factor to the fatty acid metabolism (Valenzuela et al 1998;Valenzuela 1997).…”
Section: Fatty Acid Compositionmentioning
confidence: 99%
“…In this oxidation process, the substrates involved include polyunsaturated fatty acids, present in the triacylglycerides that are part of the core of LDL, and cholesterol present both in the central part and periphery of LDL. Consequently, oxidized LDL accumulates on the walls of blood vessels, forming the most important components of atherosclerotic plaques (Valenzuela, Sanhueza, Nieto, 1998). According to the cited authors, the prevention of oxidation of lipids by tocopherols may occur because studies have demonstrated the efficacy of α-tocopherol in inhibiting the formation of lipid oxides in products with polyunsaturated fatty acids, stored for some time, unlike the antioxidant butyl hydroxyanisole (BHA).…”
Section: Biological Evaluationmentioning
confidence: 99%
“…[2][3][4][5][6] Estudios in vivo e in vitro han demostrado que los COPs poseen una serie de efectos potencialmente aterogénicos, citotóxicos, mutagénicos y carcinogénicos, por ejemplo el α -epoxicolesterol causa lesiones ateroscleróticas y tiene actividad carcinógena, el 25-hidroxicolesterol y el colestanotriol presentan actividad citotóxica y angiotóxica, además estos compuestos pueden alterar las funciones de las membranas e inhibir la síntesis de colesterol. [6][7][8][9][10] Los alimentos de origen animal como la carne de cerdo por contener cantidades significativas de colesterol son potenciales fuentes de COPs. La población de la ciudad de Pasto, se caracteriza por consumir grandes cantidades de carne de cerdo, razón por la cual los COPs formados en el proceso de preparación del frito pastuso pueden estar relacionados con la morbilidad por enfermedades cardiovasculares.…”
Section: Introductionunclassified