PMID- 21311214 OWN - NLM STAT- MEDLINE DCOM- 20110726 LR - 20220317 IS - 1942-0994 (Electronic) IS - 1942-0900 (Print) IS - 1942-0994 (Linking) VI - 3 IP - 6 DP - 2010 Nov-Dec TI - Signaling of reactive oxygen and nitrogen species in Diabetes mellitus. PG - 361-73 AB - Disorder of physiological signaling functions of reactive oxygen species (ROS) superoxide and hydrogen peroxide and reactive nitrogen species (RNS) nitric oxide and peroxynitrite is an important feature of diabetes mellitus type 1 and type 2. It is now known that hyperglycemic conditions of cells are associated with the enhanced levels of ROS mainly generated by mitochondria and NADPH oxidase. It has been established that ROS stimulate many enzymatic cascades under normal physiological conditions, but hyperglycemia causes ROS overproduction and the deregulation of ROS signaling pathways initiating the development of diabetes mellitus. On the other hand the deregulation of RNS signaling leads basically to a decrease in NO formation with subsequent damaging disorders. In the present work we will consider the pathological changes of ROS and RNS signaling in enzyme/gene regulated processes catalyzed by protein kinases C and B (Akt/B), phosphatidylinositol 3'-kinase (PI3-kinase), extracellular signal-regulated kinase 1/2 (ERK1/2), and some others. Furthermore we will discuss a particularly important role of several ROS-regulated genes and adapter proteins such as the p66shc, FOXO3a, and Sirt2. The effects of low and high ROS levels in diabetes will be also considered. Thus the regulation of damaging ROS levels in diabetes by antioxidants and free radical scavengers must be one of promising treatment of this disease, however, because of the inability of traditional antioxidative vitamin E and C to interact with superoxide and hydrogen peroxide, new free radical scavengers such as flavonoids, quinones and synthetic mimetics of superoxide dismutase (SOD) should be intensively studied. FAU - Afanas'ev, Igor AU - Afanas'ev I AD - Vitamin Research Institute, Moscow, Russia. iafananizer@gmail.com LA - eng PT - Journal Article DEP - 20101101 PL - United States TA - Oxid Med Cell Longev JT - Oxidative medicine and cellular longevity JID - 101479826 RN - 0 (Antioxidants) RN - 0 (FOXO3 protein, human) RN - 0 (Forkhead Box Protein O3) RN - 0 (Forkhead Transcription Factors) RN - 0 (Free Radical Scavengers) RN - 0 (Reactive Nitrogen Species) RN - 0 (Reactive Oxygen Species) RN - EC 1.15.1.1 (Superoxide Dismutase) RN - EC 2.7.1.- (Phosphatidylinositol 3-Kinases) RN - EC 2.7.11.1 (Proto-Oncogene Proteins c-akt) RN - EC 2.7.11.24 (Mitogen-Activated Protein Kinase 1) RN - EC 2.7.11.24 (Mitogen-Activated Protein Kinase 3) RN - EC 3.5.1.- (SIRT2 protein, human) RN - EC 3.5.1.- (Sirtuin 2) SB - IM MH - Antioxidants/therapeutic use MH - Diabetes Mellitus/*metabolism/therapy MH - Forkhead Box Protein O3 MH - Forkhead Transcription Factors/metabolism MH - Free Radical Scavengers/therapeutic use MH - Humans MH - Mitogen-Activated Protein Kinase 1/metabolism MH - Mitogen-Activated Protein Kinase 3/metabolism MH - Phosphatidylinositol 3-Kinases/metabolism MH - Proto-Oncogene Proteins c-akt/metabolism MH - Reactive Nitrogen Species/*metabolism MH - Reactive Oxygen Species/*metabolism MH - Signal Transduction MH - Sirtuin 2/metabolism MH - Superoxide Dismutase/metabolism PMC - PMC3154046 EDAT- 2011/02/12 06:00 MHDA- 2011/07/27 06:00 PMCR- 2010/11/01 CRDT- 2011/02/12 06:00 PHST- 2011/02/12 06:00 [entrez] PHST- 2011/02/12 06:00 [pubmed] PHST- 2011/07/27 06:00 [medline] PHST- 2010/11/01 00:00 [pmc-release] AID - 14415 [pii] AID - 10.4161/oxim.3.6.14415 [doi] PST - ppublish SO - Oxid Med Cell Longev. 2010 Nov-Dec;3(6):361-73. doi: 10.4161/oxim.3.6.14415. Epub 2010 Nov 1.