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OBJECTIVE Two clinical trials investigated the pharmacokinetics of human corticotropin-releasing factor (hCRF), resulting cortisol release, and associated hemodynamic changes. METHODS In a 3 x 3 Latin square design, subjects were randomized to receive a single dose of 5 microg x kg(-1) hCRF as a 10-minute intravenous infusion, a 180-minute infusion, and a(More)
Buprenorphine, methadone and naloxone were administered to pigeons key pecking under a repeated acquisition procedure. Under this procedure subjects are required to emit a new sequence of responses each session to receive access to food. All three drugs reduced overall key pecking rates although naloxone's rate-reducing effect was limited to the highest(More)
Cell transplantation improves cardiac function after myocardial infarction; however, the underlying mechanisms are not well-understood. Therefore, the goals of this study were to determine if neonatal rat cardiomyocytes transplanted into adult rat hearts 1 week after infarction would, after 8-10 weeks: 1) improve global myocardial function, 2) contract in a(More)
The ability of an oxygenated perfluorochemical (Fluosol) to limit myocardial reperfusion injury following global hypothermic ischemic insult was investigated. Neonatal piglet hearts were arrested with cold crystalloid cardioplegia and stored for 12 hours in 2 degrees C saline. Reperfusion was carried out using an isolated, blood-perfused, working heart(More)
A 50-YEAR-OLD MAN with a history of hyperlipidemia presented with worsening headache following a motor vehicle crash that had caused a closed head injury. He had no neurologic deficits and optic discs were difficult to appreciate. Hypercoagulable panel results (including antithrombin III, factor V Leiden, prothrombin G20210A mutation, protein C, protein S,(More)
Second clinical kidney grafts often survive longer than first grafts. Using a rat cardiac allograft model, we examined the conditions under which survival of a second graft can be longer than first graft survival. In the BUF-to-LEW combination, following rejection of the first transplant, second cardiac allografts from the same donor strain implanted(More)
The metabolism and disposition of nitroguanidine (NG), a component of military propellants and munitions, were examined in the rat. Radiolabeled nitroguanidine [( 14C]NG) was administered orally at doses of 20 and 200 mg/kg and intravenously at a dose of 20 mg/kg. Regardless of the route of administration, the radiolabel was recovered quantitatively in the(More)
UNLABELLED Current methods of myocardial preservation for transplantation are suboptimal. A newly developed intracellular cardioplegic and storage solution (modified University of Wisconsin solution, group 1) was compared in a randomized, blinded fashion with our present clinical protocol, Stanford cardioplegic solution and saline storage (group 2) in an(More)
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