palmitic acid/nekróza

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Palmitic acid induces production of proinflammatory cytokines interleukin-6, interleukin-1β, and tumor necrosis factor-α via a NF-κB-dependent mechanism in HaCaT keratinocytes.

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To investigate whether palmitic acid can be responsible for the induction of inflammatory processes, HaCaT keratinocytes were treated with palmitic acid at pathophysiologically relevant concentrations. Secretion levels of interleukin-6 (IL-6), tumor necrosis factor- α (TNF- α), interleukin-1 β (IL-1

Palmitic acid exerts pro-inflammatory effects on vascular smooth muscle cells by inducing the expression of C-reactive protein, inducible nitric oxide synthase and tumor necrosis factor-α.

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Atherosclerosis is a chronic inflammatory disease in the vessel, and inflammatory cytokines play an important role in the inflammatory process of atherosclerosis. A high level of free fatty acids (FFAs) produced in lipid metabolism disorders are known to participate in the formation of

alpha-Linolenic acid protects renal cells against palmitic acid lipotoxicity via inhibition of endoplasmic reticulum stress.

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Unsaturated fatty acids may counteract the lipotoxicity associated with saturated fatty acids. Palmitic acid induced endoplasmic reticulum (ER) stress and caused apoptotic and necrotic cell death in the renal proximal tubular cell line, NRK-52E. We investigated whether alpha-linolenic acid, an

Effect of palmitic acid and linoleic acid on expression of ICAM-1 and VCAM-1 in human bone marrow endothelial cells (HBMECs).

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BACKGROUND The amount and type of fatty acids (FAs) in the diet influence the risk of atherosclerosis. Palmitic acid and linoleic acid exist at high levels in Iranian edible oils. In this study, we investigated the effect of palmitic acid and linoleic acid on expression of soluble and

Increased tumor necrosis factor alpha-converting enzyme activity induces insulin resistance and hepatosteatosis in mice.

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Tumor necrosis factor alpha-converting enzyme (TACE, also known as ADAM17) was recently involved in the pathogenesis of insulin resistance. We observed that TACE activity was significantly higher in livers of mice fed a high-fat diet (HFD) for 1 month, and this activity was increased in liver >

Downregulation of growth arrest‑specific transcript 5 alleviates palmitic acid‑induced myocardial inflammatory injury through the miR‑26a/HMGB1/NF‑κB axis.

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Palmitic acid (PA) can induce lipotoxic damage to cardiomyocytes, although its precise mechanism of action has not been completely elucidated. Growth arrest‑specific transcript 5 (GAS5) is a long noncoding RNA that serves a regulatory role in several pathological processes, including tumorigenesis,

Role of calcium and free fatty acids in epinephrine-induced myocardial necrosis.

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A possible mechanism by which large doses of catecholamines produce myocardial necrosis was investigated. Male Sprague-Dawley rats, 275 to 325 g in weight, were injected once, sc, with 3 mg/kg epinephrine (E) or infused iv for 1 hr with E at a rate of 1.2 or 1.7 micrograms/min, and also injected iv

Berberine (BBR) Attenuated Palmitic Acid (PA)-Induced Lipotoxicity in Human HK-2 Cells by Promoting Peroxisome Proliferator-Activated Receptor α (PPAR-α).

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BACKGROUND Berberine (BBR), a natural alkaloid isolated from Coptis chinensis, has frequently been reported as an antidiabetic reagent, partly due to its lipid-lowering activity. Evidence suggests that BBR ameliorates palmitate-induced lipid deposition and apoptosis in renal tubular epithelial cells

The activity of cytosolic phospholipase A2 is required for the lysis of adenovirus-infected cells by tumor necrosis factor.

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Most cell types are resistant to apoptosis induced by tumor necrosis factor (TNF) unless the cells are treated with a sensitizing agent. Inhibitors of transcription or translation act as sensitizing agents, as do adenoviruses lacking one or more resistance genes. We have reported recently that the

Tumor necrosis factor cytotoxicity is associated with phospholipase D activation.

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The activation of phospholipase D in different cell lines treated with recombinant human tumor necrosis factor (TNF) has been investigated. When the murine fibrosarcoma cell lines L929 and WEHI164c113, as well as the human promonocytic cell line U937, were prelabeled with [14C]palmitic acid or

Tumor necrosis factor is cytotoxic to human fibroblasts in the presence of exogenous arachidonic acid.

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Recombinant human tumor necrosis factor (TNF) stimulated the growth of confluent human fibroblasts (FS-4) in serum-free culture medium. However, TNF had a cytotoxic effect upon the growth of FS-4 cells in combination with arachidonic acid. When arachidonic acid was added to culture medium in the

Mitogenic and cytotoxic actions of tumor necrosis factor in BALB/c 3T3 cells. Role of phospholipase activation.

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In addition to its cytotoxic/cytostatic action on many tumor cells in vitro, tumor necrosis factor (TNF) was recently shown to stimulate the growth of some types of cells in culture. We examined the action of TNF in BALB/c 3T3 cells which have been used extensively to study growth regulation. In

Formation of palmitic acid/Ca2+ complexes in the mitochondrial membrane: a possible role in the cyclosporin-insensitive permeability transition.

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A possible role of palmitic acid/Ca2+ (PA/Ca2+) complexes in the cyclosporin-insensitive permeability transition in mitochondria has been studied. It has been shown that in the presence of Ca2+, PA induces a swelling of mitochondria, which is not inhibited by cyclosporin A. The swelling is

Arachidonic acid mediates interleukin-1 and tumor necrosis factor-alpha-induced activation of the c-jun amino-terminal kinases in stromal cells.

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We have previously shown that arachidonic acid mediates interleukin-1 (IL-1) and tumor necrosis factor-alpha (TNF-alpha)-induced transcription of c-jun. The signaling pathway of arachidonic acid-induced c-jun transcription was independent of protein kinase C activation and involved a tyrosine

[The effect of resistin on nuclear factor-kB and tumor necrosis factor-a expression in hepatic steatosis].

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OBJECTIVE To investigate the potential regulatory role played by the hormone resistin in lipid metabolism and expression of nuclear factor (NF)-kB and tumor necrosis factor (TNF)-a during hepatic steatosis. METHODS A non-alcoholic fatty liver disease (NAFLD) cell model was established by treating

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