P N Trennery

Learn More
Prior to controlled clinical trials in human volunteers or patients it is required that novel pharmaceuticals are evaluated for pre-clinical safety in a rodent and a non-rodent ('second') species. In most cases the rodent species used has been the rat and the second species has been the dog or macaque (usually cynomolgus or rhesus) monkey. However, there is(More)
An investigation of raised plasma aspartate aminotransferase (AST) in marmosets after intramuscular ketamine injection suggested a local myotoxicity. This was confirmed by a range of histopathological findings from myofibrillar striation loss to necrosis. In addition to the elevations in AST levels, creatine kinase and the lactate dehydrogenase-5 isoenzyme(More)
Detection of drug-induced ototoxicity in safety evaluation studies of novel chemical entities is rarely attempted. Where such examinations are included, they usually rely on reflex testing. The Brainstem Auditory Evoked Response can be measured with the use of externally positioned electrodes, and it monitors electrophysiologic responses to sound from the(More)
The metabolism and acute toxicity of thioacetanilide was studied in the rat. Following intragastric dosage (100 mg/kg), over 90% dose was excreted in urine, predominantly as conjugated metabolites: less than 7% was recovered in the faeces, consisting of unchanged thioacetanilide. N-Acetyl-4-aminophenol sulphate was the major urinary metabolite, with smaller(More)
When either diazepam or imipramine hydrochloride was administered orally to rats with thioacetamide-induced hepatic cirrhosis, the biliary and faecal elimination of metabolites was significantly decreased compared with that in normal animals. However, renal excretion of metabolites of diazepam or imipramine was increased in the liver-damaged rats.(More)
  • 1