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An NMR study of the structural basis of the wide range of pharmacological functions of acetylsalicylic acid
Author(s) -
Li Jingzhi,
Huang He,
Zhou Ming,
Ning Shunbin,
Jiang Xing,
Peng Yinxiang,
Zhao Kaihong
Publication year - 1999
Publication title -
iubmb life
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.132
H-Index - 113
eISSN - 1521-6551
pISSN - 1521-6543
DOI - 10.1080/15216549900201723
Subject(s) - chemistry , membrane , proton nmr , lecithin , nmr spectra database , nuclear magnetic resonance spectroscopy , relaxation (psychology) , pulse sequence , nuclear magnetic resonance , crystallography , spectral line , stereochemistry , chromatography , biochemistry , psychology , social psychology , physics , astronomy
The interaction between acetylsalicylic acid (aspirin) and membrane was studied by NMR spectra. (1) NMR spectra showed acetylsalicylic acid did not insert into membrane; (2) 1H NMR spectrum recorded by spin‐echo pulse sequence showed protons of the aromatic ring interacted with membrane; (3) the change of spin‐lattice relaxation (T1) of 31P was ascribed to the association of acetylsalicylic acid to the polar head of lecithin; (4) the self‐diffusion coefficient measured by pulsed field gradients NMR showed the mobility of acetylsalicylic acid was restricted by membrane and that acetylsalicylic acid changed membrane viscosity. Based on the results, the relationship between the interaction and the mechanism of the wide pharmacological functions of acetylsalicylic acid is discussed.