PMID- 11443198 OWN - NLM STAT- MEDLINE DCOM- 20010802 LR - 20220412 IS - 0021-972X (Print) IS - 0021-972X (Linking) VI - 86 IP - 7 DP - 2001 Jul TI - Insulin inhibits intranuclear nuclear factor kappaB and stimulates IkappaB in mononuclear cells in obese subjects: evidence for an anti-inflammatory effect? PG - 3257-65 AB - In view of the fact that insulin resistance is associated with atherogenesis and that troglitazone, an insulin sensitizer, has anti-inflammatory effects, which may be potentially antiatherogenic in the long term, we have now investigated whether insulin has potential anti-inflammatory effects. We infused 2.0 to 2.5 IU/h in 5% dextrose (100 mL/h) iv into 10 obese subjects for 4 h followed by 5% dextrose alone for 2 h. The rate of insulin infusion was varied to maintain glucose concentrations as close to the baseline as possible. Blood samples were obtained before and at 2, 4, and 6 h. Subjects were also infused with 5% dextrose without insulin and with saline on separate occasions. Intranuclear nuclear factor kappaB (NFkappaB) in mononuclear cells fell at 2 and further at 4 h, reverting toward the baseline at 6 h (P < 0.05). IkappaB increased significantly at 2 h, increasing further at 4 h and remaining elevated at 6 h (P < 0.001). Reactive oxygen species (ROS) generation by mononuclear cells fell significantly at 2 h and fell further at 4 h; it partially reverted to baseline at 6 h (P < 0.005). p47(phox) subunit, the key protein of nicotinamide adenine dinucleotide phosphate oxidase also fell at 2 h and 4 h, reverting toward the baseline at 6 h (P < 0.05). In addition, soluble intercellular adhesion molecule-1 (sICAM-1), monocyte chemoattractant protein-1 (MCP-1), and plasminogen activator inhibitor-1 (PAI-1) fell significantly following insulin infusion. Glucose or saline infusions without insulin caused no alteration in NFkappaB, IkappaB, ROS generation, p47(phox) subunit, sICAM-1, MCP-1, or PAI-1. We conclude that insulin has a potent acute anti-inflammatory effect including a reduction in intranuclear NFkappaB, an increase in IkappaB, and decreases in ROS generation, p47(phox) subunit, plasma soluble intercellular adhesion molecule-1 (sICAM-1), monocyte chemoattractant protein-1 (MCP-1), and plasminogen activator inhibitor-1 (PAI-1. This acute anti-inflammatory effect, if demonstrated in the long term, may have implications for atherosclerosis and its complications. FAU - Dandona, P AU - Dandona P AD - Division of Endocrinology, Diabetes & Metabolism, State University of New York at Buffalo and Kaleida Health, Buffalo, New York 14209, USA. FAU - Aljada, A AU - Aljada A FAU - Mohanty, P AU - Mohanty P FAU - Ghanim, H AU - Ghanim H FAU - Hamouda, W AU - Hamouda W FAU - Assian, E AU - Assian E FAU - Ahmad, S AU - Ahmad S LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Clin Endocrinol Metab JT - The Journal of clinical endocrinology and metabolism JID - 0375362 RN - 0 (Anti-Inflammatory Agents) RN - 0 (Blood Glucose) RN - 0 (Chemokine CCL2) RN - 0 (I-kappa B Proteins) RN - 0 (Insulin) RN - 0 (NF-kappa B) RN - 0 (Phosphoproteins) RN - 0 (Plasminogen Activator Inhibitor 1) RN - 0 (Reactive Oxygen Species) RN - 126547-89-5 (Intercellular Adhesion Molecule-1) RN - EC 1.6.3.- (NADPH Oxidases) RN - EC 1.6.3.1 (neutrophil cytosolic factor 1) SB - IM MH - Adult MH - Anti-Inflammatory Agents/*pharmacology MH - Blood Glucose/analysis MH - Chemokine CCL2/blood MH - Female MH - Humans MH - I-kappa B Proteins/*blood MH - Insulin/blood/*pharmacology MH - Intercellular Adhesion Molecule-1/blood MH - Kinetics MH - Leukocytes, Mononuclear/*metabolism MH - Male MH - Middle Aged MH - NADPH Oxidases MH - NF-kappa B/*antagonists & inhibitors/blood MH - Obesity/*blood MH - Phosphoproteins/blood MH - Plasminogen Activator Inhibitor 1/blood MH - Reactive Oxygen Species/metabolism EDAT- 2001/07/10 10:00 MHDA- 2001/08/03 10:01 CRDT- 2001/07/10 10:00 PHST- 2001/07/10 10:00 [pubmed] PHST- 2001/08/03 10:01 [medline] PHST- 2001/07/10 10:00 [entrez] AID - 10.1210/jcem.86.7.7623 [doi] PST - ppublish SO - J Clin Endocrinol Metab. 2001 Jul;86(7):3257-65. doi: 10.1210/jcem.86.7.7623.