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Acetlycysteine

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https://www.readbyqxmd.com/read/23127854/okadaic-acid-induces-akt-hyperphosphorylation-and-an-oxidative-stress-mediated-cell-death-in-serum-starved-sk-n-sh-human-neuroblastoma-cells-that-are-augmented-by-rapamycin
#1
Jacob Edelstein, Patricia Rockwell
Using a neuronal model of serum starved SK-N-SH neuroblastoma cells, we showed previously that the phosphorylation of Akt and the mTOR substrates S6K and S6 through the vascular endothelial growth factor receptor VEGFR2 was enhanced by treatments with the phosphatase PP2A inhibitor okadaic acid (OA). These findings suggested that PP2A inhibition uncouples the regulation of Akt signaling by mTOR and affects cell survival. We therefore examined the effects of mTOR inhibition on Akt phosphorylation at sites threonine 308 (T308) and serine 473 (S473) and survival in OA treated cells...
December 7, 2012: Neuroscience Letters
https://www.readbyqxmd.com/read/21352883/nutraceuticals-in-the-treatment-of-obsessive-compulsive-disorder-ocd-a-review-of-mechanistic-and-clinical-evidence
#2
REVIEW
David A Camfield, Jerome Sarris, Michael Berk
Obsessive-compulsive disorder (OCD) is a debilitating mental illness which has a significant impact on quality of life. First-line SSRI treatments for OCD typically are of limited benefit to only 40-60% of patients, and are associated with a range of adverse side effects. Current preclinical research investigating nutraceuticals (natural products) for OCD, reveals encouraging novel activity in modulating key pathways suggested to be involved in the pathogenesis of OCD (glutamatergic and serotonergic pathway dysregulation)...
June 1, 2011: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/18266054/1-acetoxychavicol-acetate-induced-cytotoxicity-is-accompanied-by-a-rapid-and-drastic-modulation-of-glutathione-metabolism
#3
Mami Higashida, Shenghui Xu, Akiko Kojima-Yuasa, David Opare Kennedy, Akira Murakami, Hajime Ohigashi, Isao Matsui-Yuasa
The effect of 1'-acetoxychavicol acetate (ACA), an anticarcinogenic compound naturally obtained from rhizomes and seeds of South East Asia plants, on the intracellular concentration of glutathione and the activities of enzymes related to glutathione metabolism was studied in Ehrlich ascites tumor cells. We showed in a previous study that ACA induced apoptosis in tumor cells and the cell death was reversed by the addition of N-acetlycysteine or glutathione ethylester. Here we found that ACA caused a rapid decrease in glutathione level in less than 10 min after ACA exposure...
January 2009: Amino Acids
https://www.readbyqxmd.com/read/14657521/role-of-aryl-hydrocarbon-receptor-in-mesencephalic-circulation-failure-and-apoptosis-in-zebrafish-embryos-exposed-to-2-3-7-8-tetrachlorodibenzo-p-dioxin
#4
Wu Dong, Hiroki Teraoka, Yoshikazu Tsujimoto, John J Stegeman, Takeo Hiraga
2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) is a persistent and potent developmental toxicant in various animals, with developing fish being the most sensitive organisms. Although the expression of aryl hydrocarbon receptor (AHR) as well as the partner molecule, AHR nuclear translocator (ARNT) in the brain has been reported, the effect of TCDD on the brain remains to be clarified in detail. Previously, we reported local circulation failure and apoptosis in dorsal midbrain caused by TCDD in developing zebrafish...
January 2004: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/12708752/intracellular-glutathione-depletion-and-reactive-oxygen-species-generation-are-important-in-alpha-hederin-induced-apoptosis-of-p388-cells
#5
COMPARATIVE STUDY
S Muthu Kumara Swamy, Benny Tan Kwong Huat
alpha-Hederin, a pentacyclic triterpene saponin isolated from the seeds of Nigella sativa, was recently reported to have potent in vivo antitumor activity against LL/2 (Lewis Lung carcinoma) in BDF1 mice. In this study we observed that alpha-hederin caused a dose- and time-dependent increase in apoptosis of murine leukemia P388 cells. In order to evaluate the possible mechanisms for apoptosis, the effects of alpha-hederin on intracellular thiol concentration, including reduced glutathione (GSH), and protein thiols, and the effects of pretreatment with N-acetlycysteine (NAC), a precursor of intracellular GSH synthesis, or buthionine sulfoxime (BSO), a specific inhibitor of intracellular GSH synthesis, on alpha-hederin-induced apoptosis were investigated...
March 2003: Molecular and Cellular Biochemistry
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