Cited by 92Cardiac Ischemia and ReperfusionNitric Oxide and Endothelin EffectsCardiac Fibrosis and Remodeling

Absence of Inducible Nitric Oxide Synthase Reduces Myocardial Damage During Ischemia Reperfusion in Streptozotocin-Induced Hyperglycemic Mice

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Marfella, Raffaele, Di Filippo, Clara, Esposito, Katherine, Nappo, Francesco, Piegari, Elena, Cuzzocrea, Salvatore, Berrino, Liberato, Rossi, Francesco +2 more·2004·Diabetes

Abstract

We investigated the role of inducible nitric oxide synthase (iNOS) on ischemic myocardial damage and angiogenic process in genetically deficient iNOS (iNOS−/−) mice and wild-type littermates (iNOS+/+), with and without streptozotocin-induced (70 mg/kg intravenously) diabetes. After ischemia (25 min) and reperfusion (120 min), both iNOS+/+ and iNOS−/− diabetic mice (blood glucose 22 mmol/l) had myocardial infarct size greater than their respective nondiabetic littermates (P < 0.01). Myocardial infarct size (P < 0.05), apoptotic index (P < 0.005), and tissue levels of tumor necrosis factor (P < 0.01), interleukin-6 (P < 0.01), and interleukin-18 (P < 0.01) were higher in nondiabetic iNOS−/− mice compared with nondiabetic iNOS+/+ mice. As compared with diabetic iNOS−/− mice, diabetic iNOS+/+ mice showed a greater infarct size (P < 0.01) associated with the highest tissue levels of nitrotyrosine and proinflammatory cytokines, as well as apoptosis. The beneficial role of iNOS in modulating defensive responses against ischemia/reperfusion injury seems to be abolished in diabetic mice.

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Authors
Marfella, R., Di Filippo, C., Esposito, K., Nappo, F., Piegari, E., Cuzzocrea, S., Berrino, L., Rossi, F., Giugliano, D., & D’Amico, M.
Affiliations
  • University of Campania "Luigi Vanvitelli" (IT)
  • “Centro di Eccellenza Cardiovascolare,” Second University of Naples, Naples, Italy
  • University of Messina (IT)
Venue
Diabetes
Published
2004-02-01
Volume
53
Issue
2
Pages
454-462
ISSN
  • 0012-1797 (ISSN-L)
  • 1939-327X
OpenAlex
W2146079216
Cited by
92
References
35
Citations by year
2025: 1 · 2024: 1 · 2023: 1 · 2022: 1 · 2021: 1 · 2020: 3 · 2019: 2 · 2018: 2 · 2017: 3 · 2016: 1 · 2015: 8 · 2014: 7 · 2013: 5 · 2012: 8
FWCI
6.03
Type
journal article
Language
en
Open access
Locations
  • Diabetes (publishedVersion)
  • PubMed (publishedVersion)
  • Archivio Istituzionale della Ricerca - Università degli Studi della Campania "Luigi Vanvitelli" (submittedVersion)
Topics
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Cardiac Ischemia and Reperfusion
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac Fibrosis and Remodeling
Keywords
inducible nitric oxide synthase, myocardial ischemia-reperfusion injury, streptozotocin-induced diabetes, hyperglycemia, myocardial infarct size, apoptosis, nitrotyrosine, inflammatory cytokines, TNF-α, interleukin-6, IL-18, angiogenesis, iNOS knockout mice
MeSH terms
Animals, Blood Glucose, Blood Pressure, Diabetes Mellitus, Experimental, Hyperglycemia, Insulin, Interleukins, Myocardial Infarction, Myocardium, Reference Values, RNA, Streptozocin, Tyrosine, Myocardial Reperfusion Injury, Mice, Knockout, Nitric Oxide Synthase, Mice, Nitric Oxide Synthase Type II

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