PMID- 29778806 OWN - NLM STAT- MEDLINE DCOM- 20180920 LR - 20181202 IS - 1879-0631 (Electronic) IS - 0024-3205 (Linking) VI - 207 DP - 2018 Aug 15 TI - Evaluation of antioxidant potencial of novel CaAl and NiAl layered double hydroxides loaded with olanzapine. PG - 246-252 LID - S0024-3205(18)30294-7 [pii] LID - 10.1016/j.lfs.2018.05.031 [doi] AB - Olanzapine (OLZ), is used in the treatment of bipolar disorder and schizophrenia, diseases that present oxidative stress in their physiopathology. It has low aqueous solubility, which may lead to low oral bioavailability. The search of new drug delivery systems (DDSs) that may increase dissolution rate of OLZ, associated with the investigation of the antioxidant potential of the loaded-systems become of major importance to understand improvement in bipolar disorder and schizophrenia therapy. Thus, this study aimed to evaluate the in vitro antioxidant potential of two different Layered Double Hydroxides (LDH) loaded with 5% of OLZ (CaAl and NiAl), by radical scavenging activity (2,2-Diphenyl-1-picrylhydrazyl and nitric oxid); radical cation scavenging activity (2,2'-azino-bis3-ethylbenzthiazoline-6-sulfonic acid ABTS) and evaluation of inhibition capacity of lipid peroxidation by thiobarbituric acid (TBARS). The results showed that both obtained LDH systems presented in vitro antioxidant capacity when associated with OLZ in all methods performed, and this activity is more pronounced with the systems containing OLZ compared to pure drug. The systems with CaAl was shown to have increased antioxidant potential, compared to NiAl, increasing the antioxidant activity up to 40,83%, 15,84% and 16,73%, as showed by the DPPH, nitric oxide and TBARS tests, respectively. The results revealed that the use of LDHs as a functional excipient may be promising in the pharmaceutical industry for bipolar disorder and schizophrenia therapy. CI - Copyright (c) 2018. Published by Elsevier Inc. FAU - Pontes-Neto, Joao Gomes AU - Pontes-Neto JG AD - Nucelo de Controle de Qualidade de Medicamentos e Correlatos, Universidade Federal de Pernambuco, Recife, PE, Brazil. FAU - Fontes, Danilo Augusto Ferreira AU - Fontes DAF AD - Laboratorio de Tecnologia de Medicamentos, Universidade Federal de Pernambuco, Recife, PE, Brazil. FAU - de Lyra, Magaly Andreza Marques AU - de Lyra MAM AD - Nucelo de Controle de Qualidade de Medicamentos e Correlatos, Universidade Federal de Pernambuco, Recife, PE, Brazil. FAU - Brito, Maria Dos Remedios Mendes de AU - Brito MDRM AD - Laboratorio de Neuroquimica Experimental, Universidade Federal do Piaui, Teresina, PI, Brazil. FAU - Chaves, Luise Lopes AU - Chaves LL AD - Laboratorio Interdisciplinar de Materiais Avancados - LIMAV, Programa de Pos-Graduacao em Ciencias dos Materiais, Universidade Federal do Piaui. FAU - Rolim-Neto, Pedro Jose AU - Rolim-Neto PJ AD - Laboratorio de Tecnologia de Medicamentos, Universidade Federal de Pernambuco, Recife, PE, Brazil. FAU - De La Roca Soares, Monica Felts AU - De La Roca Soares MF AD - Nucelo de Controle de Qualidade de Medicamentos e Correlatos, Universidade Federal de Pernambuco, Recife, PE, Brazil. FAU - Quintans Junior, Lucindo Jose AU - Quintans Junior LJ AD - Departamento de Fisiologia, Universidade Federal de Sergipe, Aracaju, SE, Brazil. FAU - de Freitas, Rivelilson Mendes AU - de Freitas RM AD - Laboratorio de Neuroquimica Experimental, Universidade Federal do Piaui, Teresina, PI, Brazil. FAU - Soares-Sobrinho, Jose Lamartine AU - Soares-Sobrinho JL AD - Laboratorio de Tecnologia de Medicamentos, Universidade Federal de Pernambuco, Recife, PE, Brazil. Electronic address: joselamartine@hotmail.com. LA - eng PT - Journal Article DEP - 20180517 PL - Netherlands TA - Life Sci JT - Life sciences JID - 0375521 RN - 0 (Antioxidants) RN - 0 (Excipients) RN - 0 (Free Radical Scavengers) RN - 0 (Hydroxides) RN - 0 (Thiobarbituric Acid Reactive Substances) RN - 12794-10-4 (Benzodiazepines) RN - 7OV03QG267 (Nickel) RN - CPD4NFA903 (Aluminum) RN - N7U69T4SZR (Olanzapine) RN - SY7Q814VUP (Calcium) SB - IM MH - Aluminum/*chemistry MH - Antioxidants/*chemistry MH - Benzodiazepines/*chemistry MH - Bipolar Disorder/drug therapy MH - Calcium/*chemistry MH - Drug Delivery Systems MH - Excipients/chemistry MH - Free Radical Scavengers MH - Humans MH - Hydroxides/*chemistry MH - Lipid Peroxidation MH - Nickel/*chemistry MH - Olanzapine MH - Oxidative Stress/drug effects MH - Schizophrenia/drug therapy MH - Thiobarbituric Acid Reactive Substances/chemistry OTO - NOTNLM OT - Bipolar disorder OT - Drug Delivery Systems OT - Free radical OT - Inorganic systems OT - Schizophrenia treatment EDAT- 2018/05/21 06:00 MHDA- 2018/09/21 06:00 CRDT- 2018/05/21 06:00 PHST- 2018/03/22 00:00 [received] PHST- 2018/05/09 00:00 [revised] PHST- 2018/05/16 00:00 [accepted] PHST- 2018/05/21 06:00 [pubmed] PHST- 2018/09/21 06:00 [medline] PHST- 2018/05/21 06:00 [entrez] AID - S0024-3205(18)30294-7 [pii] AID - 10.1016/j.lfs.2018.05.031 [doi] PST - ppublish SO - Life Sci. 2018 Aug 15;207:246-252. doi: 10.1016/j.lfs.2018.05.031. Epub 2018 May 17.