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Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 AAPS+PharmSciTech 2009 ; 10 (1): 104-12 Nephropedia Template TP
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Studies on mefenamic acid microparticles: formulation, in vitro release, and in situ studies in rats #MMPMID19184450
Sevgi F; Yurdasiper A; Kaynarsoy B; Turunc E; Guneri T; Yalcin A
AAPS PharmSciTech 2009[]; 10 (1): 104-12 PMID19184450show ga
In this study, we investigated the in vitro characteristics of mefenamic acid (MA) microparticles as well as their effects on DNA damage. MA-loaded chitosan and alginate beads were prepared by the ionotropic gelation process. Microsponges containing MA and Eudragit RS 100 were prepared by quasi-emulsion solvent diffusion method. The microparticles were characterized in terms of particle size, surface morphology, encapsulation efficiency, and in vitro release profiles. Most of the formulation variables manifested an influence on the physical characteristics of the microparticles at varying degrees. We also studied the effects of MA, MA-loaded microparticles, and three different polymers on rat brain cortex DNA damage. Our results showed that DNA damage was higher in MA-loaded Eudragit microsponges than MA-loaded biodegradable chitosan or alginate microparticles.