pyrroline/necroză

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The importance of delta1-pyrroline in the aetiology of cerebrocortical necrosis.

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Free radicals and septic shock in primates: the role of tumor necrosis factor.

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The role of free radicals in septic-shock-associated tissue injury and the mechanisms underlying the generation of free radicals in sepsis was investigated in a primate model using electron spin resonance (ESR) spectroscopy and spin-trapping techniques paired with physiological measurements. Baboons

Arsenic induces telomerase expression and maintains telomere length in human cord blood cells.

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Inorganic arsenic (iAs) is a human carcinogen, well known as a clastogenic compound. To evaluate the molecular mechanism of arsenite (iAs(III)) toxicity, we investigated the effects on cell growth and apoptosis, telomere length, telomerase expression, as well as the formation of reactive oxygen

Synthesis and photochemical properties of pH responsive tris-cyclometalated iridium(III) complexes that contain a pyridine ring on the 2-phenylpyridine ligand.

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In our previous publication, it was reported that fac-Ir(atpy)3 3 (atpy = 2-(5'-amino-4'-tolyl)pyridine), which contains three amino groups at the 5'-position of the atpy ligands, exhibits a pH-dependent change in the color of the emitted radiation. Aqueous solution of 3 shows a weak red emission

NTP Technical Report on the metabolism, toxicity and predicted carcinogenicity of diazoaminobenzene (CAS No. 136-35-6).

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Diazoaminobenzene is used as an intermediate, complexing agent, and polymer additive. It is also an impurity in certain color additives used in cosmetics, food products, and pharmaceuticals. Diazoaminobenzene was selected for metabolism and toxicity studies based on the potential for worker exposure

Nitrogen mustard exposure of murine skin induces DNA damage, oxidative stress and activation of MAPK/Akt-AP1 pathway leading to induction of inflammatory and proteolytic mediators.

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Our recent studies in SKH-1 hairless mice have demonstrated that topical exposure to nitrogen mustard (NM), an analog of sulfur mustard (SM), triggers the inflammatory response, microvesication and apoptotic cell death. Here, we sought to identify the mechanism/s involved in these NM-induced injury

The role of superoxide radical in TNF-alpha induced NF-kappaB activation.

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Electron spin resonable (ESR) spin trapping with 5-(diethioxyphosphoyl)-5-methyl-1-pyrroline N-oxide (DEPMPO) was utilized to investigate the generation of oxygen free radicals from macrophages stimulated by tumor necrosis factor-alpha (TNF-alpha). TNF-alpha stimulated macrophages generated hydroxyl

Glutathione levels and sensitivity to apoptosis are regulated by changes in transaldolase expression.

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Transaldolase (TAL) is a key enzyme of the reversible nonoxidative branch of the pentose phosphate pathway (PPP) that is responsible for the generation of NADPH to maintain glutathione at a reduced state (GSH) and, thus, to protect cellular integrity from reactive oxygen intermediates (ROIs).

Inhibition of lipopolysaccharide-induced apoptosis by cilostazol in human umbilical vein endothelial cells.

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This work describes the pharmacological inhibition by cilostazol and its metabolites, OPC-13015 and OPC-13213, of the apoptosis in the human umbilical vein endothelial cells (HUVECs) damaged by lipopolysaccharide (LPS) in comparison with its analog, cilostamide. Cilostazol and OPC-31213 caused a

Induction of superoxide dismutase and cytotoxicity by manganese in human breast cancer cells.

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MnCl2 induced manganese-containing superoxide dismutase (MnSOD) expression (mRNA, immunoreactive protein, and enzyme activity) in human breast cancer Hs578T cells. The induction of MnSOD immunoreactive protein in Hs578T cells was inhibited by tiron (a metal chelator and superoxide scavenger),

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