Catechol-containing antioxidants are able to protect against lipid peroxidation by nonenzymatic scavenging of free radicals with their catechol moiety. During their antioxidant activity, catechol oxidation products such as semiquinone radicals and quinones are formed. These oxidation products of 4-methylcatechol inactivate the GSH-dependent protection against lipid peroxidation and the calcium ...

Silver carp fillets were treated with liposomal encapsulated and unencapsulated pomegranate peel extract at 0.5 and 1% w/w to evaluate the effect of the extracts on the shelf life of the fillets during 15 days of refrigerated storage. Quality changes of the samples were investigated in terms of total volatile basic nitrogen (TVB-N), peroxide value (PV), thiobarbituric acid (TBA) and microbial c...

Human tests show that long-term high-fat diet adaptation can increase fat oxidation in the exercise significantly than high-carbohydrates. Fewer studies focus on single high fat diet on glucose and lipid metabolism and the change of fat oxidation. This test attempts to use respiratory quotient as an effective indicator to reflect the body's metabolism of glucose and lipid and evaluate the oxida...

paraoxonase-1 (pon1) is a serum hdl-bound enzyme that hydrolyzes a number of aromatic carboxylic acid esters including lipid peroxides, preventing ldl oxidation. systemic lupus erythematosus (sle) patients are at greater risk of oxidative stress, which is associated with abnormal plasma lipid metabolism. in this study, association of pon-55 polymorphism with serum arylesterase (are) activities,...

This study evaluated the ability of fennel extract to improve the quality of refrigerated minced silver carp over a period of 16 days. Minced silver carp were treated with fennel extract (0.5, 1 and 1.5% w/w), and beta-hydroxy toluene (BHT 200 ppm). The control and the treated fish samples were analyzed periodically (every­4 days) by chemical analysis (Peroxide value (PV), thiobarbituric acid (...

objective: the aim of this study was to evaluate the effect of good glycemic control on serum lipids levels and lipid peroxidation, and to find out the relationship between the level of malondialdehyde and hba1c in type 2 diabetes. materials and methods: fifty type 2 diabetic patients aged 40-60 years with the history of diabetes for more than 10 years were studied. glycemic control was stable ...

In this study, the effect of different levels of thyroid hormone and metabolic activity on low density lipoprotein (LDL) oxidation was investigated. Thus, in 16 patients with hyperthyroidism, 16 with hypothyroidism, and 16 age- and sex-matched healthy normolipidemic control subjects, the native LDL content in lipid peroxides, vitamin E, beta-carotene, and lycopene, as well as the susceptibility...