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Biomedical subjects

Z Greif

Publications and source records attributed to Z Greif.

24 records · Page 2Linked to original sources
PubMed1983

Growth enhancement induced by prolonged L-dopa administration in rats.

To follow growth of rats, in which growth hormone secretion has been chronically stimulated, L-Dopa (5 mg/kg) was injected subcutaneously twice daily for 70 days to growing rats. A control group, matched for sex and sibship, pair fed with the treatment group was given saline injections. At 10-day intervals, the rats were weighed and measured. At 90 days of age the rats were ether anesthesized, bled for growth hormone determination, and internal viscera weighed. Weight gain and length in the L-Dopa-treated group was found to be significantly greater. A mean weight gain of 6% and 12% in the male and female rats, respectively, and a mean length gain of 5% in both male and female rats was observed at 90 days of age. The thymus, thyroid, adrenals, uterus, and gonads all tended to be heavier in the L-Dopa-treated group. Significantly heavier kidneys were found in the L-Dopa group. Serum growth hormone was found to be 8.44 +/- 1.4(SE) ng/ml in the L-Dopa group and 4.6 +/- 0.9 ng/ml in the control group. It is concluded that the continuous administration of L-Dopa produces an increase of circulating serum growth hormone levels, and this in turn enhances growth.

Animals↗
PubMed1983

Pseudomonas septicemia in childhood.

A 5-year study of Pseudomonas aeruginosa septicemia in children was conducted in two large hospitals. The average age of the patients was 20 months. Fourteen (93%) of the 15 patients were debilitated by underlying diseases or by a major invasive procedure. Most of the patients had received broad-spectrum antibiotic therapy prior to the development of Pseudomonas septicemia. The overall mortality was 53%. Ecthyma gangrenosum appeared in only three cases. The serotype H-11 was found in 53% of the septicemic patients, suggesting that Pseudomonas septicemia was a nosocomial disease in most of these cases. The adequate evaluation of the patient at risk, prevention, and early therapy are essential.

Child↗
PubMed1978

Contribuiton of M-mode echocardiography to cardiac diagnosis. An assessment in 1,000 successive patients.

The contribution of M-mode echocardiography to cardiac diagnosis was evaluated in a series of 1,000 successive patients. Among subjects in whom a presumptive clinical diagnosis had been made, echocardiography demonstrated totally unexpected findings in 10 per cent, supported the clinical diagnosis in 50 per cent and was entirely within normal limits in 19 per cent. Among patients with evidence of heart disease but no firm clinical diagnosis, echocardiography established the diagnosis in 23 per cent, including 20 per cent of all patients referred for evaluation of chest pain or arrhythmia of unclear etiology. "Missed" clinical diagnosis frequently involved patients with mitral valve prolapse, congestive cardiomyopathy, pericardial disease or asymmetrical septal hypertrophy of the heart. This study quantifies the amount of independent information contributed by echocardiography to cardiac diagnosis and demonstrates that this technic provides data of important clinical relevance in a surprisingly large number of cardiac patients.

Adult↗