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1. ZENECA ZD7288 (4-(N-ethyl-N-phenylamino)-1,2-dimethyl-6-(methylamino) pyridinium chloride) is a sinoatrial node (SAN) modulating agent which produces a selective slowing of the heart rate. Its effects have been studied in single, freshly dissociated guinea-pig SAN cells, by standard patch clamp procedures. 2. Whole-cell inward currents were evoked by(More)
We evaluated the cardiovascular effects of the sinoatrial (SA) node modulating agent, ICI D7288, in guinea pig isolated atria and SA node, anaesthetised and exercising dogs, and conscious rats. ICI D7288 (0.1-100 microM) caused a reduction in spontaneous beating rate in guinea pig isolated right atria without affecting the contractile force of paced left(More)
L-2-Chloropropionic acid (L-CPA), when orally administered at single high dose to rats produces a selective lesion in the cerebellum involving destruction of a high proportion of granule cells by a mechanism which involves N-methyl-D-aspartate (NMDA) receptors. Receptor binding studies demonstrated that L-CPA a had low affinity at the glutamate and glycine(More)
Functional cDNA clones for human NK-1 receptor were isolated from human lung RNA using the polymerase chain reaction (PCR). We have screened a human cosmid library and isolated a clone which appeared to contain the entire NK-1 receptor gene. From the published rat NK-1 receptor cDNA sequence we designed primers within the protein coding sequence, but(More)
ZENECA ZD7288 (4-(N-ethyl-N-phenyl-amino)-1,2-dimethyl-6-(methylamino) pyrimidium chloride) is a novel compound which we compared with alinidine and UL-FS 49 (zatebradine) in guinea pig sinoatrial node (SAN) and papillary muscle preparations, using conventional microelectrode techniques. At low concentrations (1 x 10(-8)-1 x 10(-6) M), ZD7288 caused slowing(More)
Rectification or geometric correction of digital images refers to the 2-dimensional resampling of an image data array onto a new grid which is distorted with respect to the original grid. When an image on a mass storage device is very much larger than the available computer central memory, it is important to choose an algorithm for rectification which(More)
Functional cDNA clones for human bradykinin B2 receptor were isolated from uterus RNA by a polymerase chain reaction (PCR)-based method and by screening a human cosmid library with rat bradykinin B2 receptor probe. We isolated several overlapping clones from the cosmid library, each of which encodes the entire protein coding sequence. The human bradykinin(More)
1. 5-Hydroxytryptamine (5-HT), acetylcholine (ACh), noradrenaline (NA), glutamate, D,L-homocysteic acid (DLH), glycine and gamma-aminobutyric acid (GABA) were applied to single neurones in the brain stem of decerebrate cats by microiontophoresis. The abilities of D-lysergic acid diethylamide tartrate (LSD 25), methysergide maleate (UML 491) and(More)
Functional cDNA clones for human NK-2 receptor were isolated from human lung RNA using a polymerase chain reaction (PCR) based method (RACE-PCR). In this method the cDNA was isolated as 5' end and 3'-end fragments; the entire cDNA was obtained by RNA-PCR. The sequence derived was 398 amino acids in length encoding an open-reading frame that was highly(More)