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@ARTICLE{Uhrikova:35073,
author = {Uhrikova, D. and Rapp, G. and Yaradaikin, S. and Gordeliy,
I. L. and Balgavy, P.},
title = {{I}nfluence of local anesthetics on the phophatidylcholine
model membrane: small-angle synchrotron {X}-ray diffraction
and neutron scattering study},
journal = {Biophysical chemistry},
volume = {109},
issn = {0301-4622},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {PreJuSER-35073},
pages = {361 - 373},
year = {2004},
note = {Record converted from VDB: 12.11.2012},
abstract = {The phase preferences of egg yolk phosphatidylcholine
(EYPC) have been examined in the presence of tertiary amine
anesthetics [2-(propyloxy)phenyl]-2-(1-piperidinyl)ethyl
ester of carbamic acid (C3A) and
[2-(heptyloxy)phenyl]-2-(1-piperidinyl)ethyl ester of
carbamic acid (C7A, heptacaine). Using the synchrotron
small-angle X-ray diffraction (SAXD), it is shown that the
C3A anesthetic induces the cubic and hexagonal (H(I)) phases
at 2 > or = C3A:EYPC > 0.5 and H2O:EYPC < or = 40 molar
ratios. In contrast, longer alkyloxy chain homolog C7A has
no effect on the bilayer arrangement of EYPC at C7A:EYPC < =
1 molar ratios as observed by SAXD in C7A + EYPC mixtures
hydrated at H2O:EYPC < = 40 molar ratios, as well as in
sonicated C7A + EYPC mixtures hydrated in excess water as
proved by the small-angle neutron scattering (SANS). The
bilayer thickness d(L) decreases and the bilayer C7A surface
area SC7A increases with the increase of C7A:EYPC molar
ratio. It is suggested that the ability of tertiary amine
local anesthetics to influence the dL and SC7A values and
EYPC polymorphism is caused by their effective molecular
shape and by charge. The possibility that anesthetic
molecules may exert some of their biological effects by
virtue of these properties is discussed.},
keywords = {Amines: chemistry / Amines: pharmacology / Anesthetics,
Local: chemistry / Anesthetics, Local: pharmacology / Egg
Yolk: metabolism / Lipid Bilayers: chemistry / Membranes:
drug effects / Models, Biological / Neutrons /
Phosphatidylcholines: chemistry / Polymorphism, Genetic /
Scattering, Radiation / Structure-Activity Relationship /
Synchrotrons / X-Ray Diffraction: methods / Amines (NLM
Chemicals) / Anesthetics, Local (NLM Chemicals) / Lipid
Bilayers (NLM Chemicals) / Phosphatidylcholines (NLM
Chemicals) / J (WoSType)},
cin = {IBI-2},
ddc = {540},
cid = {I:(DE-Juel1)VDB58},
pnm = {Neurowissenschaften},
pid = {G:(DE-Juel1)FUEK255},
shelfmark = {Biochemistry $\&$ Molecular Biology / Biophysics /
Chemistry, Physical},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:15110934},
UT = {WOS:000221368900004},
doi = {10.1016/j.bpc.2003.12.010},
url = {https://juser.fz-juelich.de/record/35073},
}