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The effects of phenytoin (DPH), carbamazepine (CBZ) and diazepam (DZP) on anoxia-induced injury in CNS white matter were studied using the in vitro rat optic nerve preparation. Optic nerves were subjected to 60 min of anoxia and functional recovery was assessed using the area under the compound
Hypoxia-ischaemia brain damage (HIBD) is a major type of perinatal brain injury in newborns. In this study, we investigate the short- and long-term neuroprotective effects of Diazepam on neonatal rats with HIBD and the potential mechanisms underlying its protective effects. Seven-day-old
In view of the fact that diazepam has been shown to prevent an increase in catecholamine synthesis and/or turnover rates in stressful situations, and to modify the cerebral metabolic (and circulatory) response to hypoxia and hypercapnia, the influence of the drug on synthesis rates of DOPA and 5-HTP
The concentration-related sensitization of guinea pig left atrium to adenosine in the presence of diazepam is well established. It was found in our experiments that the cardiodepressive action of hypoxia is significantly enhanced by diazepam in the left atrial myocardium. In atrial preparations
The effects of diazepam and the incidence of hypoxaemia on the course of acute chloroquine poisoning were studied prospectively in 21 patients. Were excluded patients who had ingested more than one drug or who had major symptoms on admission (systolic blood pressure less than 80 mmHg; QRS greater
1. The i.v. administration of convulsant doses of penetrazole or picrotoxin induced an increase in PGF2 alpha, PGE2 and TXB2-like immunoreactive material in mouse brain tissue. The onset of increase coincided with the appearance of clonic seizures. 2. The anticonvulsant drugs trimethadione and
Anoxia induced by exposure to N(2) gas for 15, 30, 50 and 60 s showed appearance of varying degrees of restlessness, tremor and convulsive behaviour resulting in mortality of adult rats. Diazepam treatment in pre- and post-anoxic conditions (10 and 20 mg/kg, respectively) has been found to decrease
Changes in arterial gas tensions were determined in 114 patients undergoing elective gastrointestinal endoscopic examinations with standard or pediatric gastroscopes or colonoscopes. All patients were premedicated intravenously with 0.5 mg of atropine and 10 mg of diazepam. In addition, two thirds
To investigate the effects of diazepam on ventilatroy control, hypoxic and hypercapnic ventilatory responses were studied in 8 normal subjects before and after 10 mg of intramuscular diazepam. There was no significant change in either resting minute ventilation or resting end-tidal CO2 tension, but
We evaluated the effects of a benzodiazepine antagonist, flumazenil (Ro 15-1788), 1 mg intravenous, on the hypoxic ventilatory response in 10 healthy patients who had received diazepam 0.97 +/- 0.34 mg/minute (mean +/- SD) for sedation during minor operative procedures. When assessed using a
The respiratory depressant effects of fentanyl, diazepam, and methohexital were studied in 18 patients who were breathing room air. Two patients had 70% oxygen supplementation administered by a nasal inhaler. Varying degrees of hypoxia occurred when the narcotic was given but hypoxia was not seen in
This crossover study tested the hypothesis that both diazepam and microdose medetomidine would comparably reduce the amount of propofol required to induce sedation. Four different medications, namely high-dose diazepam (0.4 mg/kg intravenously [IV]), low-dose diazepam (0.2 mg/kg IV), medetomidine (1
To study the regulation of the ductus venosus (DV) inlet in vivo, we measured the effect of vasoactive substances and hypoxemia on its diameter in nine fetal sheep in utero at 0.9 gestation under ketamine-diazepam anesthesia. Catheters were inserted into an umbilical vein and a fetal common carotid