major role in the regulation of vascular tone by releasing relaxing and contracting factors ( 6 ). Among the various mediators released by the endothelium, nitricoxide (NO) is of major importance. It has vasodilator activity and its local level is
Authors:Zafer Yazici, Yasemin Baskin, H. Baskin, Ozlem Gecer, I. Hakki Bahar, and Aykut Özkul
Baskin, H., Ellerman-Eriksen, S., Lovmand, J. and Mogensen, C. S. (1997): Herpes simplex virus type 2 synergizes with interferon-gamma in the induction of nitricoxide production in mouse macrophages through autocrine secretion of tumour necrosis factor
Authors:D. Axente, O. Piringer, M. Abrudean, A. Bâldea, and N. Palibroda
The rate of the15N/14N isotopic exchange between NO−HNO3 at high nitric acid concentration (2–10M) have been measured. The experimental data were obtained by contacting nitric oxide
at atmospheric pressure with nitric acid solution labelled with15N, in a glass contactor.
The rate of nitrogen isotope exchange between NO and HNO3 has been measured as a function of nitric oxide pressure 0.1–0.4 MPa for 1 and 2 M·1–1 HNO3. It is concluded that15N/14N exchange rate in NO–HNO3 system has a linear dependence of NO pressure as indicated by rate measurements at different NO partial pressure and constant overall pressure, by adding helium in reactor. Using the rate law:R=k[HNO3]2[N2O3] the15N/14N exchange rates for nitric acid concentrations 1.5–10 M·1–1 were calculated.