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Polyunsaturated fatty acids (PUFA), in the form of marine oils, contain a large proportion of n-3 long chain fatty acids and have been recommended as a dietary supplement for patients with ischaemic heart disease. It has also been suggested that consumption of diets rich in polyunsaturated fatty
There is evidence that dietary polyunsaturated fatty acids (PUFA) may protect against cardiovascular diseases, but the involvement of the cardiac muscle cell in this beneficial action remain largely unknown. The present study compared the respective influence of n-3 and n-6 PUFA on the function of
There is an intense discussion about the subcellular origin of the generation of reactive oxygen species (ROS) under hypoxia. Since this fundamental question can be addressed only in a cellular system, the O(2) -sensing rat pheochromocytoma (PC12) cells were used. Severe hypoxia is known to elevate
The synthesis of eicosanoids was investigated in cultured rat ventricular myocytes. Under normoxia, the cardiomyocytes released 6-ketoprostaglandin F1 alpha (6-keto-PGF1 alpha) and prostaglandin (PG) E2 and smaller amounts of PGF2 alpha and thromboxane B2. Hypoxia enhanced the production of PGE2 and
The polyunsaturated fatty acids (PUFAs) of the omega 3 series are known to modulate adrenergic functions in ventricular myocytes. This study evaluated the influence of hypoxia duration and PUFA composition on the ability of cultured rat cardiomyocytes in producing alpha- and beta-adrenergic
We studied the influence of membrane polyunsaturated fatty acids (PUFA) on prostanoid metabolism in the vascular endothelium, in pathophysiological conditions. Two models of cultured endothelial cells were used, from bovine aorta (BAEC) and human umbilical vein (HUVEC). In physiological conditions,
With the exception of melanoma and non-Hodgkin's lymphoma, the incidence of cancer has peaked in the last several years, but rates and mortality are still high. Moreover, despite 50 years of intensive cancer research increasingly focused on genetic causes, no single unifying cause for cancer has
The purpose of the present investigation was to determine whether the beneficial effects of polyunsaturated fatty acids (PUFA) may influence ischemia-reperfusion-induced alterations of myocardial alpha- and beta-adrenoceptor (alpha-AR, beta-AR) responsiveness. This study was carried out using
The aim of this study was to evaluate the effect of long-chain omega-3 polyunsaturated fatty acid (n-3 PUFA) supplementation on metabolic state and gene expression in subcutaneous adipose tissues of obese adolescents. Obese adolescents (n = 26, 10 girls and 16 boys) aged 12.4 ± 2.1 years were
Neonatal intermittent hypoxia (IH) increases the risk for many morbidities in extremely low birth weight/gestational age (ELBW/ELGA) neonates with compromised antioxidant systems and poor growth. We hypothesized that supplementation with coenzyme Q10 (CoQ10, ubiquinol) or n-3 polyunsaturated fatty
BACKGROUND
Up to 84% of prematurely born infants suffer hypoxic, anoxic, and ischemic insults. Those infants with subsequent behavioral, motor or cognitive dysfunction represent 8-11% of all live births. Yet, no interventions employed during pregnancy attenuate risk of morbidity in those at-risk
The effects of dietary supplementation with fat of different fatty acid profile and chronic intermittent hypoxia (CIH) on the fatty acid composition of serum and heart lipids were analysed. Adult male Wistar rats were fed a standard non-fat diet enriched with 10 % of lard, fish oil (n-3 PUFA) or
We examined the influence of dietary fatty acid (FA) classes on the expression of protein kinase C (PKC) delta and epsilon in relation to the cardioprotective effects of chronic intermittent hypoxia (CIH). Adult male Wistar rats were fed a nonfat diet enriched with 10% lard (saturated FA [SFA]),
Polyunsaturated fatty acid (PUFA)-activated two-pore domain potassium channels (K2P ) have been proposed to be expressed in the pulmonary vasculature. However, their physiological or pathophysiological roles are poorly defined. Here, we tested the hypothesis that PUFA-activated K2P are involved in
Several studies have shown that hemorrheological parameters are modified by physical exercise and exposure to altitude hypoxia. These changes result in a decrease in red cell deformability (RCD). Similarly, it has been shown that a daily dietary fish oil supplement increases RCD. The purpose of this