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dc.contributor.authorKolenyak-Santos, Fernanda-
dc.contributor.authorGarnero, Claudia-
dc.contributor.authorOliveira, Rosimeire N. de-
dc.contributor.authorSouza, Ana L. R. de-
dc.contributor.authorChorilli, Marlus-
dc.contributor.authorAllegretti, Silmara M.-
dc.contributor.authorLonghi, Marcela R.-
dc.contributor.authorChaud, Marco V.-
dc.contributor.authorGremião, Maria Palmira Daflon-
dc.identifier.citationJournal Of Nanoscience And Nanotechnology. Valencia: Amer Scientific Publishers, v. 15, n. 1, p. 761-772, 2015.-
dc.description.abstractPraziquantel (PZQ) is a pyrazinoisoquinoline anthelmintic that was discovered in 1972 by Bayer Germany. Currently, due to its efficacy, PZQ is the drug of choice against all species of Schistosoma. Although widely used, PZQ exhibits low and erratic bioavailability because of its poor water solubility. Nanostructured lipid carriers (NLC), second-generation solid lipid nanoparticles, were developed in the 1990s to improve the bioavailability of poorly water soluble drugs. The aim of this study was to investigate nanostructured lipid carriers as a strategy to improve the efficacy. of PZQ in S. mansoni treatment. We prepared NLC2 and NLC4 by adding seventy percent glycerol monostearate (GMS) as the solid lipid, 30% oleic acid (OA) as the liquid lipid and two surfactant systems containing either soybean phosphatidylcholine/poloxamer (PC/P-407) or phosphatidylcholine/Tween 60 (PC/T60), respectively. The carriers were characterized by nuclear magnetic resonance, differential scanning calorimetry, thermogravimetric analysis and Fourier transform-infrared spectroscopy. The safety profile was evaluated using red cell hemolysis and in vitro cytotoxicity assays. The results showed that the encapsulation of PZQ in NLC2 or NLC4 improved the safety profile of the drug. Treatment efficacy was evaluated on the S. mansoni BH strain. PZQ-NLC2 and PZQ-NLC4 demonstrated an improved efficacy in comparison with free PZQ. The results showed that the intestinal transport of free PZQ and PZQ-NLC2 was similar. However, we observed that the concentration of PZQ absorbed was smaller when PZQ was loaded in NLC4. The difference between the amounts of absorbed PZQ could indicate that the presence of T60 in the nanoparticles (NLC4) increased the rigid lipid matrix, prolonging release of the drug. Both systems showed considerable in vitro activity against S. mansoni, suggesting that these systems may be a promising platform for the administration of PZQ for treating schistosomiasis.en
dc.publisherAmer Scientific Publishers-
dc.sourceWeb of Science-
dc.subjectDrug Delivery Systemen
dc.subjectNanostructured Lipid Carriersen
dc.subjectS. mansonien
dc.subjectBiological Activityen
dc.titleNanostructured Lipid Carriers as a Strategy to Improve the In Vitro Schistosomiasis Activity of Praziquantelen
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionUniv Nacl Cordoba-
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)-
dc.contributor.institutionSorocaba Univ-
dc.description.affiliationUNESP Araraquara, Sch Pharmaceut Sci, Program Pharmaceut Nanotechnol, BR-14801902 Sao Paulo, Brazil-
dc.description.affiliationUniv Nacl Cordoba, Dept Pharm, Fac Ciencias Quim, RA-5000 Cordoba, Argentina-
dc.description.affiliationUniv Estadual Campinas, UNICAMP, Dept Biol Anim, BR-13083862 Sao Paulo, Brazil-
dc.description.affiliationUNESP, Sch Pharmaceut Sci, Program Pharmaceut Sci, BR-14801902 Araraquara, Brazil-
dc.description.affiliationSorocaba Univ, Pharmaceut Sci Program, BR-18023000 Sorocaba, Brazil-
dc.description.affiliationUnespUNESP Araraquara, Sch Pharmaceut Sci, Program Pharmaceut Nanotechnol, BR-14801902 Sao Paulo, Brazil-
dc.description.affiliationUnespUNESP, Sch Pharmaceut Sci, Program Pharmaceut Sci, BR-14801902 Araraquara, Brazil-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofJournal Of Nanoscience And Nanotechnology-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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