In six conscious, trained dogs, maintained on a normal sodium intake of 2 to 4 mEq/kg/day, sympathetic activity was assessed as the release rate of norepinephrine and epinephrine during 15-minute i.v. infusions of human alpha-atrial natriuretic factor. Mean arterial pressure (as a percentage of control +/- SEM) during randomized infusions of 0.03, 0.1, 0.3, or 1.0 microgram/kg/min was 99 +/- 1,...

Identification of tumor-associated antigens (TAAs) and their class I MHC-restricted epitopes now allows for the rational design of peptide-based cancer vaccines. A biocompatible system capable of sustained release of biologically relevant levels of cytokine and TAA peptide could provide a more effective microenvironment for antigen presentation. Our goal was to test a sustained-release cytokine...

Maintenance with a triple nucleoside reverse transcriptase Inhibitor (NRTI) regimen after successful induction with a dual NRTI/protease inhibitor (PI) combination may be advantageous, because of low pill burden, favorable lipids, and less drug interactions. This strategy to become free of PI-related problems without losing viral efficacy has not been formally tested. We performed a randomized,...

1. The B-vitamins in milk from baboons (Papio cynocephalus) at various stages of lactation were measured microbiologically. 2. Mature milk contained, on average (microgram/ml): thiamin 0.18 riboflavin 0.74, nicotinic acid 3.2, folate 0.03, vitamin B6 0.70 vitamin B12 0.002, pantothenic acid 2.63, biotin 0.0065. 3. Colostrum contained much less vitamin B6 and pantothenic acid than mature milk; o...

1. Mean supine plasma noradrenaline was lower in 12 male laboratory staff (0.24 +/- 0.02 microgram/l) than similarly normotensive out-patients (0.44 +/- 0.07 microgram/l). 2. In 164 non-medical hospital staff, plasma noradrenaline increased with age in white males only. 3. Plasma noradrenaline was significantly higher in women than men. 4. There was no relationship between supine blood pressure...

Maintenance with a triple nucleoside reverse transcriptase Inhibitor (NRTI) regimen after successful induction with a dual NRTI/protease inhibitor (PI) combination may be advantageous, because of low pill burden, favorable lipids, and less drug interactions. This strategy to become free of PI-related problems without losing viral efficacy has not been formally tested. We performed a randomized,...

We adapted competitive reverse transcription-polymerase chain reaction (RT-PCR) for quantitative evaluation of c-erbB-2 expression in breast cancer. A fixed amount of cDNA target was coamplified with dilutions of a nonhomologous DNA sequence used as an internal standard (IS). The IS and the target shared the same primer sequences but yielded PCR products of different sizes (348 and 340 bp, resp...

The in vitro activities of two investigational quinolones, sparfloxacin (previously designated AT 4140) and PD 127391, were determined for 30 strains each of Mycoplasma pneumoniae, Mycoplasma hominis, and Ureaplasma urealyticum and compared with those of ciprofloxacin, tetracycline, clindamycin, and erythromycin. Erythromycin was the most active compound against M. pneumoniae (maximum MIC, less...

Seven chemotherapeutic agents (dimetridazole, metronidazole, pyrimethamine, albendazole, fenbendazole, mebendazole and magnesium sulfate) were examined for growth inhibition on the cultivation of Spironucleus vortens. Dimetridazole and metronidazole were effective in inhibiting the parasite's growth. At concentrations of 1 microgram ml-1 or higher, both dramatically decreased numbers of parasit...