PMID- 20302925 OWN - NLM STAT- MEDLINE DCOM- 20100907 LR - 20141120 IS - 1873-3476 (Electronic) IS - 0378-5173 (Linking) VI - 392 IP - 1-2 DP - 2010 Jun 15 TI - The advantages of a novel CoQ10 delivery system in skin photo-protection. PG - 57-63 LID - 10.1016/j.ijpharm.2010.03.032 [doi] AB - Skin photo-ageing induced by ultraviolet (UV) radiation is mainly ascribed to oxidative stress and reactive oxygen species (ROS). Coenzyme Q10 (CoQ10) has been reported as a powerful antioxidant in plasma. However, CoQ10 was barely satisfactory in topical drug delivery because of its lipid solubility. To improve the anti-oxidative efficiency of CoQ10 in skin photo-ageing, the present research prepared a novel CoQ10 nano-structured lipid carrier (CoQ10-NLC) and characterised it by size and freeze-fracture transmission electron microscopy (FF-TEM). In UVA-irradiated fibroblasts, the protection of CoQ10-NLC was more effective than the CoQ10-emulsion as demonstrated by cell viability and morphological changes of the cell body and nucleus. In addition, malondialdehyde (MDA, the product of lipid peroxidation) concentration decreased by 61.5% in the group treated with CoQ10-NLC compared to the group subjected to general CoQ10-emulsion. In the presence of CoQ10-NLC, the activities of the anti-oxidative enzymes superoxide dismutase (SOD) and glutathione peroxidase (GSH-px) were reinstated to 81% and 75%, respectively, of the control group. In vivo, the CoQ10-NLC displayed a stronger capability to penetrate the stratum corneum and permeate the dermis after a topical skin application. These results reveal that CoQ10-NLC has greater antioxidant properties and topical skin penetration than the CoQ10-emulsion. CI - Copyright 2010 Elsevier B.V. All rights reserved. FAU - Yue, Yang AU - Yue Y AD - State Key Lab Biomembrane & Membrane Biotechnology, School of Life Sciences, Tsinghua University, Beijing, China. FAU - Zhou, Huafeng AU - Zhou H FAU - Liu, Guanlan AU - Liu G FAU - Li, Yan AU - Li Y FAU - Yan, Zemin AU - Yan Z FAU - Duan, Mingxing AU - Duan M LA - eng PT - Journal Article DEP - 20100317 PL - Netherlands TA - Int J Pharm JT - International journal of pharmaceutics JID - 7804127 RN - 0 (Drug Carriers) RN - 0 (Lipid Peroxides) RN - 0 (Lipids) RN - 0 (Reactive Oxygen Species) RN - 0 (Sunscreening Agents) RN - 1339-63-5 (Ubiquinone) RN - EC 1.11.1.9 (Glutathione Peroxidase) RN - EC 1.15.1.1 (Superoxide Dismutase) RN - EJ27X76M46 (coenzyme Q10) SB - IM MH - Animals MH - Apoptosis/drug effects/radiation effects MH - Cells, Cultured MH - Drug Carriers/*chemistry MH - Female MH - Fibroblasts/drug effects/enzymology/metabolism/pathology/radiation effects MH - Glutathione Peroxidase/metabolism MH - Humans MH - Lipid Peroxides/metabolism MH - Lipids/*chemistry MH - Microscopy, Electron, Transmission MH - Models, Biological MH - Nanostructures/*chemistry MH - Oxidative Stress/drug effects/radiation effects MH - Rats MH - Rats, Sprague-Dawley MH - Reactive Oxygen Species/metabolism MH - Skin/drug effects/enzymology/metabolism/radiation effects MH - Skin Absorption/drug effects MH - *Skin Aging/drug effects/radiation effects MH - Solubility MH - Sunscreening Agents/*administration & dosage/chemistry/pharmacokinetics MH - Superoxide Dismutase/metabolism MH - Surface Properties MH - Ubiquinone/administration & dosage/*analogs & derivatives/chemistry/pharmacokinetics MH - Ultraviolet Rays/adverse effects EDAT- 2010/03/23 06:00 MHDA- 2010/09/08 06:00 CRDT- 2010/03/23 06:00 PHST- 2009/09/22 00:00 [received] PHST- 2010/02/12 00:00 [revised] PHST- 2010/03/10 00:00 [accepted] PHST- 2010/03/23 06:00 [entrez] PHST- 2010/03/23 06:00 [pubmed] PHST- 2010/09/08 06:00 [medline] AID - S0378-5173(10)00206-1 [pii] AID - 10.1016/j.ijpharm.2010.03.032 [doi] PST - ppublish SO - Int J Pharm. 2010 Jun 15;392(1-2):57-63. doi: 10.1016/j.ijpharm.2010.03.032. Epub 2010 Mar 17.