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Savall ASP, de Mello JD, Fidelis EM, Comis-Neto AA, Nepomuceno MR, Pacheco CDO, Haas SE, Pinton S. Nanoencapsulated Curcumin: Enhanced Efficacy in Reversing Memory Loss in An Alzheimer Disease Model. Brain Sci 2024; 14:130. [PMID: 38391705 PMCID: PMC10886961 DOI: 10.3390/brainsci14020130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 01/16/2024] [Accepted: 01/22/2024] [Indexed: 02/24/2024] Open
Abstract
Investigating new drugs or formulations that target Alzheimer disease (AD) is critical for advancing therapeutic interventions. Therefore, this study aimed to assess the effectiveness of nanoencapsulated curcumin (NC Curc) in alleviating memory impairment, oxidative stress, and neuroinflammation in a validated AD model. Male Wistar rats were given bilateral intracerebroventricular injections of either saline or streptozotocin (STZ) (3 mg/3 µL/site) to establish the AD model (day 0). On day 22, daily oral administrations of curcumin (6 mg/kg), NC Curc (6 mg/kg), or a vehicle (unloaded NC) were initiated and continued for 14 days. NC Curc significantly reversed memory deficits in object recognition and inhibitory avoidance tests induced by STZ. Both formulations of curcumin attenuated elevated acetylcholinesterase activity caused by STZ. Importantly, NC Curc alone effectively mitigated STZ-induced oxidative stress. Additionally, NC Curc treatment normalized GFAP levels, suggesting a potential reduction in neuroinflammation in STZ-treated rats. Our findings indicate that NC Curc improves memory in an AD rat model, highlighting its enhanced therapeutic effects compared to unencapsulated curcumin. This research significantly contributes to understanding the therapeutic and neurorestorative potential of NC Curc in AD, particularly in reversing pathophysiological changes.
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Affiliation(s)
- Anne Suély Pinto Savall
- Research Group on Biochemistry and Toxicology in Eukaryotes, Federal University of Pampa, Campus Uruguaiana, Uruguaiana 97500-970, RS, Brazil
| | - Jhuly Dorneles de Mello
- Research Group on Biochemistry and Toxicology in Eukaryotes, Federal University of Pampa, Campus Uruguaiana, Uruguaiana 97500-970, RS, Brazil
| | - Eduarda Monteiro Fidelis
- Research Group on Biochemistry and Toxicology in Eukaryotes, Federal University of Pampa, Campus Uruguaiana, Uruguaiana 97500-970, RS, Brazil
| | - Antonio Alvenir Comis-Neto
- Research Group on Biochemistry and Toxicology in Eukaryotes, Federal University of Pampa, Campus Uruguaiana, Uruguaiana 97500-970, RS, Brazil
| | - Maria Regina Nepomuceno
- Research Group on Biochemistry and Toxicology in Eukaryotes, Federal University of Pampa, Campus Uruguaiana, Uruguaiana 97500-970, RS, Brazil
| | - Camila de Oliveira Pacheco
- Laboratory of Pharmacology and Pharmacometrics, Federal University of Pampa, Campus Uruguaiana, Uruguaiana 97500-970, RS, Brazil
| | - Sandra Elisa Haas
- Laboratory of Pharmacology and Pharmacometrics, Federal University of Pampa, Campus Uruguaiana, Uruguaiana 97500-970, RS, Brazil
| | - Simone Pinton
- Research Group on Biochemistry and Toxicology in Eukaryotes, Federal University of Pampa, Campus Uruguaiana, Uruguaiana 97500-970, RS, Brazil
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Teixeira FEG, de Carvalho FB, Pacheco CDO, Pimentel K, de Gomes MG, Haas SE. The Importance of Skin Health Promotion for Children: Care with Makeup Use and Skin Cancer Prevention. Asian Pac J Cancer Prev 2022; 23:3491-3499. [PMID: 36308375 PMCID: PMC9924344 DOI: 10.31557/apjcp.2022.23.10.3491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Indexed: 02/18/2023] Open
Abstract
BACKGROUND Numerous pathogenic complications affect the skin and are preventable, such as skin cancer, microbial diseases, dermal irritations, and anaphylaxis. In this context, the correct use of skin products, including sunscreens and child makeup, is important for promoting skin health and preventing adverse health conditions. OBJECTIVE This study aimed to use educational and playful activities to promote skin health for students. METHODS This project was development in a municipal elementary school (Rio Grande do Sul State, Brazil). The interventions were divided into three moments. In the first day, a questionnaire was applied to find out the students' previous knowledge about photoprotection. On the second day, an intervention lecture was held addressing issues related to photoprotection and the use of makeup. Finally, we played educational and ludic games and after, the questionnaire was reapplied. This was done to evaluate these actions' effectiveness regarding photoprotection and record their habits by applying a structured questionnaire at the beginning and end of the activities. RESULTS Students received positively and interacted significantly during all activities performed. Regarding the impact of this study, we observed that ten times more students considered using sunscreen as something important at the end of the project, as only 8.16% of participants knew what skin cancer was at the beginning of the experiment. After the educational activities, this number rose to 72.37%, and 92.86% of girls reported wearing makeup, with more than half being expired or unlabeled and only 21.6% being appropriate for child use. CONCLUSION The measures demonstrated effectively improve students' level of information regarding skin cancer prevention and indicated that inappropriate habits concerning makeup use in childhood are quite common, demonstrating the importance of educational interventions for children, since can improve your health.
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Affiliation(s)
- Flávia Elizabete Guerra Teixeira
- Pharmacology and Pharmacometry Laboratory, Federal University of Pampa, Uruguaiana, Brazil.,Pharmaceutical Sciences Post Graduate Program, Federal University of Pampa, Uruguaiana, Brazil.
| | | | - Camila de Oliveira Pacheco
- Pharmacology and Pharmacometry Laboratory, Federal University of Pampa, Uruguaiana, Brazil.,Pharmaceutical Sciences Post Graduate Program, Federal University of Pampa, Uruguaiana, Brazil.
| | - Khayan Pimentel
- Pharmacology and Pharmacometry Laboratory, Federal University of Pampa, Uruguaiana, Brazil.
| | - Marcelo Gomes de Gomes
- Pharmacology and Pharmacometry Laboratory, Federal University of Pampa, Uruguaiana, Brazil.,Pharmaceutical Sciences Post Graduate Program, Federal University of Pampa, Uruguaiana, Brazil.
| | - Sandra Elisa Haas
- Pharmacology and Pharmacometry Laboratory, Federal University of Pampa, Uruguaiana, Brazil.,Pharmaceutical Sciences Post Graduate Program, Federal University of Pampa, Uruguaiana, Brazil. ,For Correspondence:
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de Oliveira Pacheco C, de Gomes MG, da Silva Neto MR, Parisotto AJM, Dos Santos RB, Maciel TR, Ribeiro ACF, Giacomeli R, Haas SE. Surface-functionalized curcumin-loaded polymeric nanocapsules could block apomorphine-induced behavioral changes in rats. Pharmacol Rep 2021; 74:135-147. [PMID: 34739705 DOI: 10.1007/s43440-021-00331-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 10/01/2021] [Accepted: 10/04/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Surface functionalization enhances the properties and characteristics of polymeric nanocapsules (NCs) mainly due to the surface charge, surfactants, and polymer coating type. Curcumin (CUR) is a bioactive compound with several proven pharmacological properties and low bioavailability. This study aimed to develop anionic (poly-ɛ-caprolactone; PCL) and cationic (Eudragit® RS100 (EUD)) NCs prepared with sorbitan monostearate (Span 60®) or sorbitan monooleate (Span 80®), coated with d-α-tocopherol polyethylene glycol 1000 succinate (TPGS) and optimized using 23 factorial analysis. Subsequently, the biological activity was evaluated. METHODS A two-level, three-factor design (polymer, Span type, and TPGS concentration) was used. The biological effects of CUR-loaded TPGS-coated cationic and anionic NCs were assessed in apomorphine-induced stereotyped behavior in rats. RESULTS The type of polymer (anionic or cationic) and Span® had a factorial influence on the physical and chemical characteristics of NCs according to the changes in TPGS concentrations. Both cationic and anionic CUR-NCs could block apomorphine-induced behavioral changes. CONCLUSIONS The CUR-loaded TPGS-coated NCs proved to be a promising brain delivery system.
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Affiliation(s)
- Camila de Oliveira Pacheco
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Pampa, Campus Uruguaiana, BR 472, Km 7, Uruguaiana, RS, 97500-970, Brazil
| | - Marcelo Gomes de Gomes
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Pampa, Campus Uruguaiana, BR 472, Km 7, Uruguaiana, RS, 97500-970, Brazil
| | - Manoel Rodrigues da Silva Neto
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Pampa, Campus Uruguaiana, BR 472, Km 7, Uruguaiana, RS, 97500-970, Brazil
| | - Alcides José Martins Parisotto
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Pampa, Campus Uruguaiana, BR 472, Km 7, Uruguaiana, RS, 97500-970, Brazil
| | - Renata Bem Dos Santos
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Pampa, Campus Uruguaiana, BR 472, Km 7, Uruguaiana, RS, 97500-970, Brazil
| | - Tamara Ramos Maciel
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Santa Maria, Av. Roraima no. 1000, Santa Maria, RS, 97105-900, Brazil
| | - Ana Cláudia Funguetto Ribeiro
- Postgraduate Program in Biochemistry, Federal University of Pampa, Campus Uruguaiana, BR 472, Km 7, Uruguaiana, RS, 97500-970, Brazil
| | - Renata Giacomeli
- Postgraduate Program in Biochemistry, Federal University of Pampa, Campus Uruguaiana, BR 472, Km 7, Uruguaiana, RS, 97500-970, Brazil
| | - Sandra Elisa Haas
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Pampa, Campus Uruguaiana, BR 472, Km 7, Uruguaiana, RS, 97500-970, Brazil.
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Santa Maria, Av. Roraima no. 1000, Santa Maria, RS, 97105-900, Brazil.
- Postgraduate Program in Biochemistry, Federal University of Pampa, Campus Uruguaiana, BR 472, Km 7, Uruguaiana, RS, 97500-970, Brazil.
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