14 nəticələr
Lymphocytes depend on transmethylation reactions for efficient activation and function. These reactions are primarily catalyzed by S-adenosylmethionine-dependent methyltransferases, which convert S-adenosylmethionine to S-adenosyl-L-homocysteine. S-adenosyl-L-homocysteine is then hydrolyzed by
Previous reports demonstrate that cultured human umbilical vein endothelial cells (HEC) treated with TNF and other inflammatory mediators show an increased capacity to adhere human neutrophils. This increase is associated with the up-regulation of intercellular adhesion molecule 1 (ICAM-1) and other
The histiophagous scuticociliate Philasterides dicentrarchi is the aetiological agent of scuticociliatosis, a parasitic disease of farmed turbot. Curcumin, a polyphenol from Curcuma longa (turmeric), is known to have antioxidant and anti-inflammatory properties. We investigated the in vitro effects
Systemic sclerosis is a multisystem inflammatory and vascular lesion leading to extensive tissue fibrosis. A reversible S-adenosyl-l-homocysteine hydrolase (SAHH) inhibitor, DZ2002, modulates the pathologic processes of various inflammatory diseases and autoimmune diseases. This study Elevated plasma homocysteine is an independent risk factor for atherosclerosis. We hypothesized that homocysteine enhances monocyte/human aortic endothelial cell (HAEC) interactions, a pivotal early event in atherogenesis, by upregulating endothelial adhesion molecules. After incubation of cultured
Treatment of cultured human umbilical vein endothelial cells (HUVE) with tumor necrosis factor alpha (TNF-alpha) increases their capacity to adhere human neutrophils. We have found that 3-deazaadenosine (c3Ado), when added in conjunction with TNF-alpha, inhibited this increase in neutrophil
We investigated the effect of S-adenosyl-L-methionine (SAMe) on the prevention of the delayed neuronal death in rats subjected to transient and brief forebrain ischemia. As the results, SAMe dose-dependently protected the hippocampal CA1 neurons from degeneration and necrosis, whose effect was
BACKGROUND
Hyperhomocysteinemia (HHcy) is an independent risk factor for cardiovascular disease. Monocytes display inflammatory and resident subsets and commit to specific functions in atherogenesis. In this study, we examined the hypothesis that HHcy modulates monocyte heterogeneity and leads to
BACKGROUND
Alcohol-induced liver injury is associated with decreased S-adenosyl-l-methionine (SAM)/S-adenosyl-l-homocysteine (SAH) ratio and mitochondrial glutathione (mGSH) depletion, which has been shown to sensitize hepatocytes to tumor necrosis factor (TNF).
OBJECTIVE
As the effect of alcohol on
APO-1/Fas (CD95) is a member of the tumor necrosis factor/nerve growth factor receptor superfamily and mediates apoptosis in various cell types. Here we show that L929 cells, expressing human APO-1 treated with agonistic antibodies (anti-APO-1), elicit an early and transient increase of
OBJECTIVE
To investigate the protective effect of histone deacetylase inhibitor NL101 on L-homocysteine (HCA)-induced toxicity in rat neurons, and the toxic effect on normal rat neurons.
METHODS
In the presence of NL101 at various concentrations, HCA (5 mmol/L)-induced changes in cell density,
Cystathionine (R-S-(2-amino-2-carboxyethyl)-l-homocysteine) is a non-proteinogenic thioether containing amino acid. In mammals, cystathionine is formed as an intermediate of the transsulfuration pathway by the condensation of serine and homocysteine (Hcy) in a reaction catalyzed by cystathionine
5-Azacytidine (5-aza-CR) is a DNA-hypomethylating antineoplastic agent used because of its inhibitory activity on DNA methyltransferases. Today, it is approved as an epigenetically active drug therapy for treatment of myelodysplastic disorders, with a contraindication as to pre-existing liver
BACKGROUND
Proinflammatory cytokines play key roles in atherogenesis and disease progression. Because hyperhomocysteinemia is an independent risk factor for cardiovascular disease, we hypothesized that homocysteine could be atherogenic by altering the expression of specific cytokines in vascular