The responses of the iliac artery to insulin: direct delayed nitric oxide-mediated dilatation
| العنوان: | The responses of the iliac artery to insulin: direct delayed nitric oxide-mediated dilatation |
|---|---|
| المؤلفون: | F. Markos, Cherry L. Wainwright, Mark Im oble, Therese Ruane O'Hora, Mohamed Al-Obaidi |
| المصدر: | The British Journal of Diabetes & Vascular Disease. 11:130-136 |
| بيانات النشر: | SAGE Publications, 2011. |
| سنة النشر: | 2011 |
| مصطلحات موضوعية: | medicine.medical_specialty, Iliac artery, biology, business.industry, Endocrinology, Diabetes and Metabolism, Insulin, medicine.medical_treatment, Urology, medicine.disease, Nitric oxide, Constriction, Nitric oxide synthase, chemistry.chemical_compound, medicine.anatomical_structure, chemistry, In vivo, Anesthesia, Diabetes mellitus, Internal Medicine, biology.protein, Medicine, Cardiology and Cardiovascular Medicine, business, Artery |
| الوصف: | The aim of the study was to determine the effect of insulin on a conduit artery. In a closed-off test segment of iliac artery in vivo in anaethetised pigs, pressure was kept constant. During the first 10 minutes of exposure to hyperinsulinaemic blood, the test segment diameter was 3.63±0.64 mm (mean ± SD). Dilatation occurred after 10 minutes when the test segment diameter increased to 3.80±0.62 mm (mean ± SD), p=0.0006, n=10. The increase in diameter with the vehicle for insulin in blood was -0.0775±0.116 mm (mean ± SD, n=6) and with hyperinsulin in blood was 0.165±0.124 mm (mean ± SD, n=10), p=0.0024. Dilatation with hyperinsulin was 0.229±0.116 mm (mean ± SD) versus insulin plus 250 µg/ml of the nitric oxide synthase inhibitor NG-nitro-L-arginine methyl ester hydrochloride (L-NAME), 0.041±0.026 mm (mean ± SD), p=0.0313, n=6. No evidence of arterial constriction was observed in the presence of L-NAME. We conclude that insulin has a direct relaxing effect on the smooth muscle in the wall of conduit artery, mediated by nitric oxide. Br J Diabetes Vasc Dis 2011;11:130-136. |
| تدمد: | 1753-4305 1474-6514 |
| DOI: | 10.1177/1474651411405581 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::55e96a8dbf9686544bd9101b3a4a0046 https://doi.org/10.1177/1474651411405581 |
| Rights: | CLOSED |
| رقم الانضمام: | edsair.doi...........55e96a8dbf9686544bd9101b3a4a0046 |
| قاعدة البيانات: | OpenAIRE |
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