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The ingestion of a glucose containing drink has been shown to improve performance on a variety of cognitive tasks. There is debate, however, as to whether glucose especially benefits hippocampal memory functioning or whether it has a more global effect on attentional systems. The present study used event related potential methodology (ERPs) to investigate(More)
OBJECTIVE To determine effects of dietary protein and calories on progression of induced chronic renal failure in cats. ANIMALS 28 young adult female cats. PROCEDURE Renal mass was reduced surgically, and glomerular filtration rate (GFR) was determined. Cats were alloted to 4 groups of 7 with similar mean GFR (1.52 to 1.55 ml/min/kg of body weight).(More)
OBJECTIVE To determine whether the angiotensin converting enzyme inhibitor enalapril would lower systemic arterial and glomerular capillary pressure and reduce the magnitude of renal injury in a canine model of renal insufficiency. ANIMALS 18 adult dogs that had renal mass reduced by partial nephrectomy. PROCEDURE After surgical reduction of renal mass(More)
In previous studies, enhanced toxicity of hemoglobin when combined with endotoxin has suggested a specific binding site. This binding may take place even when endotoxin-free hemoglobin is administered, due to some low levels of endotoxin usually present in the portal vein. To test this hypothesis, we administered endotoxin-free, stroma-free human hemoglobin(More)
OBJECTIVE To evaluate the effect of topical 2% dorzolamide alone, and in combination with topical 0.5% timolol, on intraocular pressure (IOP) in normal cats. ANIMALS Twenty-four healthy Domestic Short-haired cats. PROCEDURE Baseline values of IOP were established at 7 am, 10 am, 1 pm, 5 pm and 9 pm during pretreatment phase (days 1-2). During treatment(More)
Forty-three nonhemophiliac, confirmed HIV-positive children followed by the Children's Hospital AIDS Program made 184 visits to the children's Emergency Department (ED) during 1988 and 1989. The mean age was 30 +/- 28 months with a median of 25 months, a mode of 10 months, and a range from two days to 19 years. CD4 counts from within six months of the visit(More)
We investigated prolactin (PRL) and growth hormone (GH) secretion during acute and late abstinence following methylphenidate (MP) administration. Ten male patients who were undergoing acute cocaine abstinence and nine control subjects were randomly assigned into one of two possible sequences of MP and placebo, with each experimental condition occurring on(More)
OBJECTIVE To establish a safe and effective technique for the endoscopic examination and biopsy of snake lungs by use of a 2.7-mm rigid endoscope system. DESIGN Clinical trial. ANIMALS 17 adult ball pythons (Python regius). PROCEDURES The right lung of each anesthetized snake was transcutaneously penetrated at a predetermined site. Endoscopic lung(More)
To evaluate a minimally invasive endosurgical system in birds, endoscopic orchidectomy and salpingohysterectomy were evaluated in 11 male and 14 female pigeons (Columba livia). Anesthesia was maintained by using isoflurane delivered by a pressure-cycle ventilator and produced good to excellent anesthesia during 96% of procedures. Endosurgery was performed(More)
We present a case of dedifferentiated chondrosarcoma of the larynx in which the dedifferentiated component was initially diagnosed by fine-needle aspiration (FNA). The patient was a 74-yr-old man who presented with difficulty breathing and an anterior neck mass. A CT scan demonstrated a 4.5-cm cartilaginous lesion involving the left thyroid cartilage, with(More)