MicroRNA-21 Modulates the Levels of Reactive Oxygen Species by Targeting SOD3 and TNFα

MicroRNA-21 Modulates the Levels of Reactive Oxygen Species Levels by Targeting SOD3 and TNFα

O 22: Reactive Oxygen Species and Epilepsy

Seizure activity has been proposed to result in the generation of reactive oxygen species (ROS), which then contribute to seizure-induced neuronal damage and eventually cell death. Although the mechanisms of seizure-induced ROS generation are unclear, mitochondria and cellular calcium overload have been proposed to have a crucial role. We aim to determine the sources of seizure-induced ROS and ...

Ferritin Heavy Chain Upregulation by NF-κB Inhibits TNFα-Induced Apoptosis by Suppressing Reactive Oxygen Species

al., 2002). Cytotoxicity caused by ROS is mediated in part by the JNK pathway (Matsuzawa et al., 2002). Acti-During inflammation, NF-␬B transcription factors an-vation of this pathway by TNF␣ promotes death by in-tagonize apoptosis induced by tumor necrosis factor ducing cleavage of the Bcl-2 family BH3-only protein, (TNF)␣. This antiapoptotic activity of NF-␬B involves Bid, into jBid, which ta...

Reactive Oxygen Species Promote TNFα-Induced Death and Sustained JNK Activation by Inhibiting MAP Kinase Phosphatases

TNFalpha is a pleiotropic cytokine that induces either cell proliferation or cell death. Inhibition of NF-kappaB activation increases susceptibility to TNFalpha-induced death, concurrent with sustained JNK activation, an important contributor to the death response. Sustained JNK activation in NF-kappaB-deficient cells was suggested to depend on reactive oxygen species (ROS), but how ROS affect ...

the relationship between individual versus pair writing tasks and levels of fluency, complexity and accuracy in efl writing by iranian learners

پژوهش کنونی با هدف مطالعه رابطه بین نوشتار بصورت انفرادی و گروهی با میزان دقت، پیچیدگی و سلاست دانش آموزان زبان انگلیسی حین نگارش متون انجام شده است. بمنظور دستیابی به این هدف، دو گروه از دانش آموزان مقطع متوسطه موسسه زبان کیش انتخاب شده و سپس از آنها خواسته شد تا 6 متن را با 6 موضوع متفاوت و طی 6 جلسه به نگارش در آورند. تجزیه و تحلیل این پژوهش با هدف اندازه گیری میزان دقت، پیچیدگی و سلاست نوشت...