I012 Effect of heme oxygenase inhibition on blood pressure
نویسندگان
چکیده
منابع مشابه
Heme oxygenase inhibition increases blood pressure in pregnant rats.
BACKGROUND During normal gestation, the placenta is a relatively hypoxic organ and, as such, is subject to significant oxidative stress. In the preeclamptic patient, inadequate remodeling of the maternal vasculature severely exacerbates placental oxidative stress, which has been shown to be an important component of maternal hypertension. There is emerging evidence that Heme Oxygenase-1 (HO-1) ...
متن کاملRenal Inhibition of Heme Oxygenase-1 Increases Blood Pressure in Angiotensin II-Dependent Hypertension
The goal of this study was to test the hypothesis that renal medullary heme oxygenase (HO) acts as a buffer against Ang-II dependent hypertension. To test this hypothesis, renal medullary HO activity was blocked using QC-13, an imidazole-dioxolane HO-1 inhibitor, or SnMP, a classical porphyrin based HO inhibitor. HO inhibitors were infused via IRMI catheters throughout the study starting 3 days...
متن کاملRole of renal medullary heme oxygenase in the regulation of pressure natriuresis and arterial blood pressure.
Recent studies have demonstrated that inhibition of renal medullary heme oxygenase (HO) activity and carbon monoxide (CO) significantly decreases renal medullary blood flow and sodium excretion. Given the crucial role of renal medullary blood flow in the control of pressure natriuresis, the present study was designed to determine whether renal medullary HO activity and resulting CO production p...
متن کاملHeme Oxygenase-2 Gene Mutations and Blood Bilirubin Level in Iranian Patients with Premature Atherosclerosis
Heme oxygenase-2 (HO-2) is a critical antioxidative stress enzyme found in endothelial cells and adventitialnerves. This enzyme in conjunction with other HOs (1 and 3) metabolize heme molecule into ferrous iron,carbon monoxide (CO), and biliverdin which is further converted to bilirubin. Both biliverdin and bilirubin arepotent antioxidants, reducing the risk of atherosclerosis...
متن کاملSelective regulation of blood pressure by heme oxygenase-1 in hypertension.
Heme oxygenase (HO) and carbon monoxide (CO) participate in the homeostatic control of cardiovascular functions, including the regulation of blood pressure (BP). Upregulation of the HO/CO system has been shown to lower BP in young (8 weeks) but not in adult (20 weeks) spontaneously hypertensive rats (SHR). The underlying mechanism for this selective effect, however, has been unknown and was inv...
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ژورنال
عنوان ژورنال: American Journal of Hypertension
سال: 1998
ISSN: 0895-7061
DOI: 10.1016/s0895-7061(97)91338-8