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Biomedical subjects

E Superstine

Publications and source records attributed to E Superstine.

36 records · Page 2Linked to original sources
PubMed1975

Effects of changing levels of glucocorticosteroids on heat exposure in rabbit.

Rabbits exposed for one hour to a temperature of 40degrees Cand 35-37% humidity showed elevated plasma osmolality and pH. Most of the animals were not able to withstand the heat. Dexamethasone-treated rabbits under the same conditions withstood the heat better and their plasma pH and osmolality remained constant. Metopirone-treated rabbits withstood the heat and showed a rise in plasma osmolality and a slight change in plasma pH. The highest rise in rectal temperature was observed in the metopirone-treated rabbits. Only the untreated animals were unable to regain pre-exposure rectal temperature. The results suggest that high levels of glucocorticosteroids enhance neurogenic and metabolic mechanisms which have protective functions during acute exposure to heat.

Animals↗
PubMed1975

Antimicrobial therapy in patients hospitalized in a medical ward. A report from the Boston Collaborative Drug Surveillance Program.

The pattern of use of antimicrobial agents in 1,700 patients hospitalized in a medical ward at the Hadassah University Hospital, Jerusalem, during 1969--72, is analyzed. Penicillins comprised 56%, tetracyclines 11%, streptomycin 9% and cephalosporins 3% of the total antimicrobial exposures. Ampicillin was given to 20% of the patient population. The use of tetracyclines and chloramphenicol fell steadily from 1969 to 1972. Fifty-five percent of the recipients of antimicrobial drugs received only one agent, 19% had concomitant therapy with several agents and the remainder received multiple antimicrobial drugs sequentially. One hundred and ten patients (6.5%) developed adverse reactions; the most common being rash and gastrointestinal reactions. Only two of the reactions were classified as causing major morbidity.

Ampicillin↗
PubMed1973

Intravenous infusions of heparin and penicillins.

The chemical stability and anticoagulant activity of heparin (20 U/ml) were studied in five intravenous fluids at room temperature. Heparin remained stable and active for 24 hours in normal saline, but there was a rapid inactivation of 40 to 55% in solutions containing dextrose or lactate, as measured by chemical and biological methods.High concentrations of benzylpenicillin, ampicillin, or methicillin had no effect on heparin activity in normal saline or dextrose 5%: nor was the stability of the penicillins in these fluids affected to any marked extent by the presence of heparin. Ampicillin was, however, found to be unstable in dextrose 5%, and it would be preferable for it not to be added to dextrose infusions. It is concluded that heparin may be given intravenously in normal saline with benzylpenicillin, ampicillin, or methicillin but several other antibiotics were found to be unsuitable for concurrent infusion with heparin.

Ampicillin↗