2009
DOI: 10.1161/atvbaha.109.185447
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Insulin Increases Reendothelialization and Inhibits Cell Migration and Neointimal Growth After Arterial Injury

Abstract: Objective-Insulin has both growth-promoting and protective vascular effects in vitro, however the predominant effect in vivo is unclear. We investigated the effects of insulin in vivo on neointimal growth after arterial injury. Methods and Results-Rats were given subcutaneous control (C) or insulin implants (3U/d;I) 3 days before arterial (carotid or aortic) balloon catheter injury. Normoglycemia was maintained by oral glucose and, after surgery, by intraperitoneal glucose infusion (saline in C

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Cited by 49 publications
(38 citation statements)
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“…Administration of insulin for 3 days has been reported to decrease intimal area and increased re-endothelialization after balloon catheter injury in rat arteries, without altering plasma glucose concentrations significantly [56]. These studies support an anti-atherogenic action of insulin, yet care should be taken when assessing studies with systemic, prolonged treatment with insulin which may mimic hyperinsulinemia, with potential detrimental effects on vascular health.…”
mentioning
confidence: 78%
“…Administration of insulin for 3 days has been reported to decrease intimal area and increased re-endothelialization after balloon catheter injury in rat arteries, without altering plasma glucose concentrations significantly [56]. These studies support an anti-atherogenic action of insulin, yet care should be taken when assessing studies with systemic, prolonged treatment with insulin which may mimic hyperinsulinemia, with potential detrimental effects on vascular health.…”
mentioning
confidence: 78%
“…In addition, angiotensin II-induced oxidative stress and subsequent EPC dysfunction could be attenuated by treatment with TDZ, resulting in lowered peroxynitrite levels and increased telomerase activity (44). Insulin treatment increases reendothelialization and the number of circulating progenitor cells and inhibits cell migration and neointimal growth after arterial injury (12).…”
Section: Antidiabetics and Organic Nitratesmentioning
confidence: 99%
“…Physiological stimuli of PLD2 can generate CPA in biologically effective concentrations, as indicated by our findings using the foam-cell formation and adipocyte differentiation models in cultured cell lines and also using primary monocytes/macrophages, and PPAR$-dependent vascular remodeling in vivo. In addition, the present data reinforce the long-standing observation that low concentrations of insulin protect against neointimal growth (Breen et al, 2009). …”
Section: Discussionsupporting
confidence: 89%