Effects of Chlorhexidine Digluconate on Rotational Rate of n- (9-Anthroyloxy) stearic Acid in Porphyromonas ginginvalis Outer Membranes.
- Author:
Hye Ock JANG
1
;
Seong Kweon CHA
;
Chang LEE
;
Min Gak CHOI
;
Sung Ryul HUH
;
Sang Hun SHIN
;
In Kyo CHUNG
;
Il YUN
Author Information
1. Department of Dental Pharmacology and Biophysics, College of Dentistry and Research Institute for Oral Biotechnology, Pusan National University, Busan 602-739, Korea. iyun@pusan.ac.kr
- Publication Type:Original Article
- Keywords:
Bacterial outer membranes;
Chlorhexidine digulconate;
Fluorescence probe technique;
Membrane hydrocarbon interior;
Membrane surface;
Rotational rate;
n- (9-Anthroyloxy) stearic acid
- MeSH:
Carbon;
Chlorhexidine*;
Fluorescence Polarization;
Membrane Fluidity;
Membrane Lipids;
Membranes*;
Porphyromonas gingivalis;
Porphyromonas*;
Thiram
- From:The Korean Journal of Physiology and Pharmacology
2003;7(3):125-130
- CountryRepublic of Korea
- Language:English
-
Abstract:
The aim of this study was to provide a basis for studying the molecular mechanism of pharmacological action of chlorhexidine digluconate. Fluorescence polarization of n- (9-anthroyloxy) stearic acid was used to examine the effect of chlorhexidine digluconate on differential rotational mobility of different positions of the number of membrane bilayer phospholipid carbon atoms. The six membrane components differed with respect to 2, 3, 6, 9, 12, and 16- (9-anthroyloxy) stearic acid (2-AS, 3-AS, 6-AS, 9-AS, 12-AS and 16-AP) probes, indicating different membrane fluidity. Chlorhexidine digluconate increased the rate of rotational mobility of hydrocarbon interior of the cultured Porphyromonas gingivalis outer membranes (OPG) in a dose-dependent manner, but decreased the mobility of surface region (membrane interface) of the OPG. Disordering or ordering effects of chlorhexidine digluconate on membrane lipids may be responsible for some, but not all of its bacteriostatic and bactericidal actions.
