AIM To investigate the activation of nuclear factor-kappa B (NF-kappa B) and its function in glucocorticoid-induced Leydig cell apoptosis. METHODS The Leydig cells were isolated from male Sprague-Dawley rats (90 days of age) and were incubated with corticosterone (CORT, glucocorticoid in rat) for 6 h, 12 h and 24 h, respectively. The P65 subunit of NF-kappa B (NF-kappa B/P65) in nuclei and th...

Inflammations form an integral part of the innate immunity against pathogenic infections. NF-κB represents a family of inducible transcription factors, which regulates a large array of genes involved in different processes of the immune and inflammatory responses. It is now clear that NF-κB signaling pathway is involved in the regulation of inflammation, contributing to the initiati...

Background : Propylene glycol (1,2-propanediol, PG) is a commonly used solvent for oral, intravenous, as well as topical pharmaceutical preparations. While PG is generally considered to be safe, it has been known that large intravenous doses given over a short period of time can be toxic. Objective: To evaluate the effect of PG in sepsis induced by the bacterial endotoxin lipopolysaccharide (LP...

background : propylene glycol (1,2-propanediol, pg) is a commonly used solvent for oral, intravenous, as well as topical pharmaceutical preparations. while pg is generally considered to be safe, it has been known that large intravenous doses given over a short period of time can be toxic. objective: to evaluate the effect of pg in sepsis induced by the bacterial endotoxin lipopolysaccharide (lp...

the inhibition of the inducible nitric oxide synthase (inos), cyclooxygenase 2 (cox-2) and nuclear factor-κb (nf-κb) production are research targets of attract in the field of anti-inflammatory drug development. therefore, this study was designed to investigate the anti-inflammatory effects of novel thiazolidinone derivatives using a cellular model of lipopolysaccharide (lps)-stimulated murine ...

Nuclear factor-kappa B (NF-kappa B) is a ubiquitously expressed cellular factor regulated by the cytoplasmic factor inhibitor protein kappa B alpha (I kappa B alpha). Activation of NF-kappa B by cytokines, including tumor necrosis factor-alpha (TNF-alpha), requires the phosphorylation and degradation of I kappa B alpha. An anti-apoptotic role for NF-kappa B has recently been suggested. In the p...

objective(s): the objective of this study was to investigate the hepatoprotective effect of licochalcone b (lcb) in a mice model of carbon tetrachloride (ccl4)-induced liver toxicity. materials and methods: hepatotoxicity was induced in mice by a single subcutaneous injection (sc) of ccl4. the lcb was administered orally once a day for seven days (po) as pretreatment at three doses of 1, 5, and...

Objective(s): To elucidate the effects and potential mechanisms of hypericin-photodynamic therapy (HYP-PDT) for treating the human rheumatoid arthritis (RA) fibroblast-like synoviocyte (FLS) MH7A cell-line. Materials and Methods: MH7A cells were subjected to HYP-PDT intervention and apoptosis was evaluated via MTT, nuclear staining, and flowcytometry analyses. Intracellular reactive oxygen spec...

Primary mediastinal large B-cell lymphoma (MLBCL) shares important clinical and molecular features with classic Hodgkin lymphoma, including nuclear localization of the nuclear factor B (NF B) subunit c-REL (reticuloendotheliosis viral oncogene homolog) in a pilot series. Herein, we analyzed c-REL subcellular localization in additional primary MLBCLs and characterized NF B activity and function ...