Electron Paramagnetic Resonance Investigation of Stratum Corneum Lipid Structure
Electron Paramagnetic Resonance Investigation of Stratum Corneum Lipid Structure
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角质层脂质结构的电子顺磁共振研究
DOI:
10.1007/s11745-009-3374-7
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发表时间:
2010
期刊:
影响因子:
1.9
通讯作者:
K. Nakagawa
中科院分区:
文献类型:
--
作者:
Iwabuchi T;Lam MK;Saito K;Obara M;Honda M;Imai Y;Kuroda K.;Nakamura M;K. Nakagawa
Electron paramagnetic resonance (EPR) in conjunction with a slow-tumbling simulation was utilized for defining stratum corneum (SC) lipid structure. We found that ordering calculated from the simulation is an appropriate index for evaluating SC lipids structure. The SC from two sites (mid-volar forearm and lower-leg) of human volunteers was stripped consecutively from one to three times using a glass plate coated with a cyanoacrylate resin. Aliphatic spin probes, 5-doxylstearic acid (5-DSA) and 3β-doxyl-5α-cholestane (CHL), were used to monitor SC ordering. EPR spectrum of 5-DSA incorporated in the SC demonstrated a characteristic peak for the first strip. However, EPR spectra of CHL in the SC did not show a clear difference for each strip, except for the peak intensity. The results imply that CHL is not incorporated into the lipid phase as easily as 5-DSA is. A slow-tumbling simulation of the EPR spectrum was performed to analyze the detailed lipid structure. The simulation results for 5-DSA show differences in values of the SC ordering as a function of depth. Thus, these results along with the simulation analysis provide a detailed SC layer structure.
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影响因子:
1.7
作者:
S. Kitagawa;A. Ikarashi
通讯作者:
A. Ikarashi
影响因子:
4.4
作者:
MEIROVITCH, E;IGNER, D;FREED, JH
通讯作者:
FREED, JH
DOI:
10.1021/j150660a017
发表时间:
1984
期刊:
The Journal of Physical Chemistry
影响因子:
--
作者:
D. Robinson
通讯作者:
D. Robinson
DOI:
10.1021/la026813d
发表时间:
2003
期刊:
Langmuir : the ACS journal of surfaces and colloids
影响因子:
--
作者:
K. Nakagawa
通讯作者:
K. Nakagawa
DOI:
--
发表时间:
2006
期刊:
Spectrochimica. Acta, Part A, Mol. & Biomol. Spectroscopy 63
影响因子:
--
作者:
K. Nakagawa;J. Mizushima;Y. Takino;K. Sakamoto;H. I. Maibach
通讯作者:
H. I. Maibach