Cortical and medullary kidney tissue levels of cefonicid in human beings.
Cefonicid concentration has been determined microbiologically in cortical and medullary tissue in 30 patient undergoing surgery because of neoplastic disease localized within the kidney. Each subject received 1 g of cefonicid intramuscularly in a single administration. The patients were divided into six groups, from which samples of blood and tissue were collected 2, 4, 6, 8, 12, 24 h respectively after treatment with the drug. The mean peak serum levels appeared at the second hour (74.96 +/- 8.14 mcg/ml) and the decay shows a monoexponential behaviour, reaching a minimum value of 5.4 +/- 2.33 mcg/ml at the 24th hour. In the cortical tissue of the kidney the peak levels appeared at the fourth hour (26.22 +/- 8.87 mcg/g), while at the 24th hour levels were about 3.08 +/- 0.81 mcg/g. A very similar behaviour could also be observed in the medullary tissue of the kidney with peak levels at the fourth hour (25.82 +/- 10.06 mcg/g) and levels of 3.48 +/- 0.85 mcg/g at the 24th hour. A delay in the decay of tissue levels in comparison with the decay of blood levels could be observed from the eighth hour.
Scaglione
F
F
Department of Pharmacology, Chemotherapy and Toxicology, University of Milan, Italy.
Ferrara
F
F
Maierna
G
G
Falchi
M
M
Comeri
G
G
Fraschini
F
F
D000328:Adult; D000368:Aged; D015790:Cefonicid / Q000493:pharmacokinetics*; D005260:Female; D006801:Humans; D007672:Kidney Cortex / Q000378:metabolism*; D007679:Kidney Medulla / Q000378:metabolism*; D007680:Kidney Neoplasms / Q000378:metabolism / Q000601:surgery; D008297:Male; D008875:Middle Aged; D013997:Time Factors
D015790:Cefonicid