title: The impact of insulin resistance on endothelial function, progenitor cells and repair.
abstract: The structural and functional integrity of the vascular endothelium plays a critical role in vascular homeostasis. Insulin resistance, an important risk factor for cardiovascular disease, is thought to promote atherosclerosis through a reciprocal relationship with endothelial dysfunction. In health, cumulative damage to endothelial cells incurred by exposure to risk factors is mitigated by endogenous reparative processes. Disruption of the balance between endothelial damage and repair may mediate atherosclerotic progression. Bone marrow-derived 'endothelial progenitor cells' (EPC) have been identified as significant contributors to endogenous vascular repair. Insulin resistance is associated with a spectrum of biochemical abnormalities which have the potential to reduce the availability of EPCs and diminish their capacity for vascular repair. Many lifestyle and pharmacological interventions which improve insulin resistance also increase the numbers and functionality of EPCs. Cell-based therapies may also hold promise for the prevention and treatment of cardiovascular disease.
authors.affiliation: The Academic Unit of Cardiovascular Medicine, The LIGHT Laboratories, University of Leeds, Clarendon Way, Leeds, UK.
authors.forename: Richard M
authors.initials: RM
authors.lastname: Cubbon
authors.forename: Adil
authors.initials: A
authors.lastname: Rajwani
authors.forename: Stephen B
authors.initials: SB
authors.lastname: Wheatcroft
mesh_terms: D000818:Animals; D017209:Apoptosis; D002317:Cardiovascular Agents / Q000494:pharmacology / Q000627:therapeutic use; D002318:Cardiovascular Diseases / Q000209:etiology / Q000473:pathology / Q000503:physiopathology* / Q000517:prevention & control; D049109:Cell Proliferation; D048909:Diabetes Complications / Q000209:etiology / Q000473:pathology / Q000503:physiopathology* / Q000517:prevention & control; D004730:Endothelium, Vascular / Q000187:drug effects / Q000473:pathology* / Q000503:physiopathology; D006801:Humans; D007004:Hypoglycemic Agents / Q000494:pharmacology / Q000627:therapeutic use; D007333:Insulin Resistance; D008019:Life Style; D012038:Regeneration / Q000187:drug effects; D012307:Risk Factors; D033581:Stem Cell Transplantation; D013234:Stem Cells / Q000187:drug effects / Q000473:pathology*
chemical_list: D002317:Cardiovascular Agents; D007004:Hypoglycemic Agents