D. Racz

Learn More
On the helical strip of a capacitance vessel, the pulmonary artery of the rabbit, phenylethylamine (PEA) and tyramine act solely via displacement of noradrenaline from their storage sites and this effect is inhibited by desmethylimipramine (DMI). In contrast, on a resistance vessel, the perfused central ear artery of the rabbit, PEA enhances stimulation(More)
[(3)H]noradrenaline ([(3)H]NA) released from sympathetic nerves in the isolated main pulmonary artery of the rabbit was measured in response to field stimulation (2Hz, 1ms, 60V for 3min) in the presence of uptake blockers (cocaine, 3 x10(-5)M and corticosterone, 5 x10(-5)M). The [(3)H]NA-release was fully blocked by the combined application of the selective(More)
A new optical design uses a liquid crystal pixel array (LCPA) to discriminate multiple fluorescence signals on a two-dimensional biosensor array. The LCPA can selectively control the transmission of fluorescence generated from multiple biosensing elements on a planar waveguide. This device sequentially acquires the fluorescence data from the substrate by(More)
The release of [(3)H]noradrenaline has been measured from the isolated main pulmonary artery of the rabbit in the presence of uptake blockers (cocaine, 3 x 10(?5) M; corticosterone, 5 x 10(?5) M). K(+)-removal from Krebs solution increased the release of [(3)H]NA even in the absence of external calcium. K(+)-readmission to the external medium terminated the(More)
Low frequency (2 Hz) of electrical depolarisation induced [3H]noradrenaline ([3H]NA) release has been measured from the isolated main pulmonary artery of the rabbit in the presence of uptake blockers (cocaine, 3x10(-5)M and corticosterone, 5x10(-5)M), with parallel measurements of post-junctional contractile responses. The K+ATP-channel opener pinacidil(More)