A quantitative circular dichroic investigation of the binding of the enantiomers of ibuprofen and naproxen to human serum albumin

Autor: Christopher M. Riley, V.K Cheruvallath, John H. Perrin, Siegfried Lindenbaum, S.R Narayanan
Rok vydání: 1997
Předmět:
Zdroj: Journal of Pharmaceutical and Biomedical Analysis. 15:1719-1724
ISSN: 0731-7085
DOI: 10.1016/s0731-7085(96)01956-5
Popis: The binding constants for racemic, R and S naproxen and ibuprofen to human serum albumin have been determined by a circular dichroic technique. The ibuprofens and naproxens show no measurable extrinsic optical activity on interaction with the protein, and so the extrinsic Cotton effect shown following the diazepam-albumin interaction is used as a probe. The presence of the drugs reduce the amount of diazepam bound as shown by the interaction is used as a probe. The presence of the drugs reduce the amount of diazepam bound as shown by the reduced size of the induced ellipticity. The calculated primary binding constants show that the S form of both drugs bind to the albumin more tightly than the R form and that the racemic forms bind less tightly than either enantiomer.
Databáze: OpenAIRE