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Campos LM, de Oliveira Lemos AS, de Lima Paula P, da Rocha VN, de Freitas Araújo MG, Tavares GD, Barradas TN, Nascimento WWG, Denadai AML, de Oliveira LFC, Fabri RL. Exploring the antifungal potential of Annona muricata leaf extract-loaded hydrogel in treating vulvovaginal candidiasis. Colloids Surf B Biointerfaces 2024; 238:113919. [PMID: 38663311 DOI: 10.1016/j.colsurfb.2024.113919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 03/25/2024] [Accepted: 04/12/2024] [Indexed: 05/12/2024]
Abstract
Vulvovaginal candidiasis, mostly caused by Candida albicans, remains a prevalent concern in women's health. Annona muricata L. (Annonaceae), a plant native from Brazil, is well-known for its therapeutic potential, including antitumor, anti-inflammatory, and antimicrobial properties. This study presents an innovative hydrogel formulation containing the ethanolic extract from A. muricata leaves designed to control C. albicans in an in vivo model of vulvovaginal candidiasis. Here, we report the development, thermal, physicochemical and rheological characterization of a Carbopol®-based hydrogel containing A. muricata extract. Furthermore, we evaluated its activity in a vulvovaginal candidiasis in vivo model. Thermal analyses indicated that the addition of the extract increased the polymer-polymer and polymer-solvent interactions.Rheological analysis showed a decrease in the viscosity and elasticity of the formulation as the A. muricata extract concentration increased, suggesting a liquid-like behavior. After treatment with the Carbopol®-based hydrogel with A. muricata, our in vivo results showed a significant reduction in vulvovaginal fungal burden and infection, as well as a reduction in mucosal inflammation. The current research opens up possibilities for the application of the Carbopol®-based hydrogel with A. muricata as a natural therapeutic option for the treatment of vulvovaginal candidiasis.
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Affiliation(s)
- Lara Melo Campos
- Laboratory of Bioactive Natural Products, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Campus Juiz de Fora, MG, Brazil
| | - Ari Sérgio de Oliveira Lemos
- Laboratory of Bioactive Natural Products, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Campus Juiz de Fora, MG, Brazil
| | - Priscila de Lima Paula
- Laboratory of Bioactive Natural Products, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Campus Juiz de Fora, MG, Brazil
| | - Vinícius Novaes da Rocha
- Department of Veterinary Medicine, Faculty of Medicine, Federal University of Juiz de Fora, Campus Juiz de Fora, MG, Brazil
| | | | - Guilherme Diniz Tavares
- Laboratory of Nanostructured Systems Development, Department of Pharmaceutical Science, Faculty of Pharmacy, Federal University of Juiz de Fora, Campus Juiz de Fora, MG, Brazil
| | - Thais Nogueira Barradas
- Laboratory of Nanostructured Systems Development, Department of Pharmaceutical Science, Faculty of Pharmacy, Federal University of Juiz de Fora, Campus Juiz de Fora, MG, Brazil
| | - Wesley William Gonçalves Nascimento
- Department of Pharmacy, Institute of Life Sciences, Federal University of Juiz de Fora, Campus Governador Valadares, Governor Valadares, MG, Brazil
| | - Angelo Mácio Leite Denadai
- Department of Pharmacy, Institute of Life Sciences, Federal University of Juiz de Fora, Campus Governador Valadares, Governor Valadares, MG, Brazil
| | - Luiz Fernando Cappa de Oliveira
- Center for Spectroscopy and Molecular Structure, Department of Chemistry, Institute of Exact Sciences, Federal University of Juiz de Fora, Campus Juiz de Fora, MG, Brazil
| | - Rodrigo Luiz Fabri
- Laboratory of Bioactive Natural Products, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Campus Juiz de Fora, MG, Brazil.
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Ijinu TP, De Lellis LF, Shanmugarama S, Pérez-Gregorio R, Sasikumar P, Ullah H, Buccato DG, Di Minno A, Baldi A, Daglia M. Anthocyanins as Immunomodulatory Dietary Supplements: A Nutraceutical Perspective and Micro-/Nano-Strategies for Enhanced Bioavailability. Nutrients 2023; 15:4152. [PMID: 37836436 PMCID: PMC10574533 DOI: 10.3390/nu15194152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 09/21/2023] [Accepted: 09/24/2023] [Indexed: 10/15/2023] Open
Abstract
Anthocyanins (ACNs) have attracted considerable attention for their potential to modulate the immune system. Research has revealed their antioxidant and anti-inflammatory properties, which play a crucial role in immune regulation by influencing key immune cells, such as lymphocytes, macrophages, and dendritic cells. Moreover, ACNs contribute towards maintaining a balance between proinflammatory and anti-inflammatory cytokines, thus promoting immune health. Beyond their direct effects on immune cells, ACNs significantly impact gut health and the microbiota, essential factors in immune regulation. Emerging evidence suggests that they positively influence the composition of the gut microbiome, enhancing their immunomodulatory effects. Furthermore, these compounds synergize with other bioactive substances, such as vitamins and minerals, further enhancing their potential as immune-supporting dietary supplements. However, detailed clinical studies must fully validate these findings and determine safe dosages across varied populations. Incorporating these natural compounds into functional foods or supplements could revolutionize the management of immune-related conditions. Personalized nutrition and healthcare strategies may be developed to enhance overall well-being and immune resilience by fully understanding the mechanisms underlying the actions of their components. Recent advancements in delivery methods have focused on improving the bioavailability and effectiveness of ACNs, providing promising avenues for future applications.
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Affiliation(s)
- Thadiyan Parambil Ijinu
- Naturæ Scientific, Kerala University-Business Innovation and Incubation Centre, Kariavattom Campus, University of Kerala, Thiruvananthapuram 695581, India;
- The National Society of Ethnopharmacology, VRA-179, Mannamoola, Peroorkada P.O., Thiruvananthapuram 695005, India
| | - Lorenza Francesca De Lellis
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, 80131 Naples, Italy; (L.F.D.L.); (D.G.B.); (A.D.M.); (A.B.)
| | - Santny Shanmugarama
- Department of Pathology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA;
| | - Rosa Pérez-Gregorio
- Food and Health Omics Group, Institute of Agroecology and Food, Faculty of Sciences, University of Vigo, 32004 Ourense, Spain;
- LAQV-REQUIMTE, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
- Department of Analytical and Food Chemistry, Galicia Sur Health Research Institute (IISGS), SERGAS-UVIGO, 32002 Ourense, Spain
| | | | - Hammad Ullah
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, 80131 Naples, Italy; (L.F.D.L.); (D.G.B.); (A.D.M.); (A.B.)
| | - Daniele Giuseppe Buccato
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, 80131 Naples, Italy; (L.F.D.L.); (D.G.B.); (A.D.M.); (A.B.)
| | - Alessandro Di Minno
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, 80131 Naples, Italy; (L.F.D.L.); (D.G.B.); (A.D.M.); (A.B.)
- CEINGE-Biotecnologie Avanzate, Via Gaetano Salvatore 486, 80145 Naples, Italy
| | - Alessandra Baldi
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, 80131 Naples, Italy; (L.F.D.L.); (D.G.B.); (A.D.M.); (A.B.)
| | - Maria Daglia
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, 80131 Naples, Italy; (L.F.D.L.); (D.G.B.); (A.D.M.); (A.B.)
- International Research Center for Food Nutrition and Safety, Jiangsu University, Zhenjiang 212013, China
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de Lima Paula P, de Oliveira Lemos AS, Campos LM, Ferreira TG, Freitas de Souza T, Queiroz LS, Machado Resende Guedes MC, Martins MM, Goulart Filho LR, Macedo GC, Tavares GD, Rocha VN, Leite Denadai ÂM, Fabri RL. Pharmacological investigation of antioxidant and anti-inflammatory activities of leaves and branches extracts from Plinia cauliflora (Jaboticaba). JOURNAL OF ETHNOPHARMACOLOGY 2021; 280:114463. [PMID: 34352328 DOI: 10.1016/j.jep.2021.114463] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 07/06/2021] [Accepted: 07/24/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Among all native Brazilian plant species, Plinia cauliflora (DC.) Kausel (Jaboticaba), is well known for producing "superfruits", due to their high phenolic content and antioxidant property. The fruit has astringent characteristics, and it is popularly known for the treatment of diarrhea, rash, and intestinal inflammation. However, there are only a few studies on the use of leaves and branches of this species in the literature, mainly to treat oxidative stress and inflammation. AIM OF THE STUDY The present study aimed to investigate the antioxidant and anti-inflammatory potential of leaves and branches extracts from P. cauliflora. MATERIAL AND METHODS The phytochemical analysis of P. cauliflora extracts was performed by the total phenolic, flavonoid, and tannin dosage method. Moreover, the compounds were identified by HPLC-MS-Q-TOF. Antioxidant capacity was determined by DPPH, β-carotene/linoleic acid system, MDA formation, and phosphomolybdenum assays. In vitro and in vivo anti-inflammatory activities of P. cauliflora were evaluated by the reduction of nitric oxide in the J774A.1 cell line and inhibition of ear edema in mice, respectively. RESULTS The ethanolic extract of the leaves exhibited greater flavonoid content whereas the ethanolic extract of the branches showed higher tannins content. Twenty-two and seventeen compounds were identified by HPLC-MS-Q-TOF in the leaves and branches, respectively, being tellimagrandin I, castalagin, and valoneic acid dilactone reported for the first time in P. cauliflora. The antioxidant potential of extracts was confirmed through different oxidation pathways from oxidizing radicals, which might be related to the presence of phenolic compounds. For the anti-inflammatory assay, the leaves and branches extracts showed promising results, with a reduction of nitric oxide ear edema inhibition around 95% and 80%, respectively. CONCLUSIONS Herein, the great biological potential of leaves and branches extracts from P. cauliflora was highlighted. These parts of the plant are underused and poorly reported in the literature, especially for the antioxidant and anti-inflammatory activities.
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Affiliation(s)
- Priscila de Lima Paula
- Laboratory of Bioactive Natural Products, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Ari Sérgio de Oliveira Lemos
- Laboratory of Bioactive Natural Products, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Lara Melo Campos
- Laboratory of Bioactive Natural Products, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Thayná Gomes Ferreira
- Laboratory of Bioactive Natural Products, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Thalita Freitas de Souza
- Laboratory of Bioactive Natural Products, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Lucas Sales Queiroz
- Laboratory of Bioactive Natural Products, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Maria Clara Machado Resende Guedes
- Center for Cellular Technology and Applied Immunology, Department of Parasitology, Microbiology, and Immunology, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Mário Machado Martins
- Laboratory of Nanobiotechnology, Institute of Biotechnology, Federal University of Uberlândia, Campus Umuarama, Uberlândia, MG, Brazil
| | - Luiz Ricardo Goulart Filho
- Laboratory of Nanobiotechnology, Institute of Biotechnology, Federal University of Uberlândia, Campus Umuarama, Uberlândia, MG, Brazil
| | - Gilson Costa Macedo
- Center for Cellular Technology and Applied Immunology, Department of Parasitology, Microbiology, and Immunology, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Guilherme Diniz Tavares
- Laboratory of Nanostructured Systems Development, Department of Pharmaceutical Science, Faculty of Pharmacy, Federal University of Juiz de Fora, Campus, Juiz de Fora, MG, Brazil
| | - Vinícius Novaes Rocha
- Department of Veterinary Medicine, Faculty of Medicine, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Ângelo Márcio Leite Denadai
- Department of Pharmacy, Institute of Life Sciences, Federal University of Juiz de Fora, Campus Governador Valadares, Governor Valadares, MG, Brazil
| | - Rodrigo Luiz Fabri
- Laboratory of Bioactive Natural Products, Department of Biochemistry, Institute of Biological Sciences, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil.
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In vitro and in vivo evaluation of cnicin from blessed thistle (Centaurea benedicta) and its inclusion complexes with cyclodextrins against Schistosoma mansoni. Parasitol Res 2020; 120:1321-1333. [PMID: 33164156 DOI: 10.1007/s00436-020-06963-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 11/02/2020] [Indexed: 01/08/2023]
Abstract
Schistosomiasis, caused by a blood fluke of the genus Schistosoma, afflicts over 230 million people worldwide. Treatment of the disease relies on just one drug, praziquantel. Cnicin (Cn) is the sesquiterpene lactone found in blessed thistle (Centaurea benedicta) that showed antiparasitic activities but has not been evaluated against Schistosoma. However, cnicin has poor water solubility, which may limit its antiparasitic activities. To overcome these restrictions, inclusion complexes with cyclodextrins may be used. In this work, we evaluated the in vitro and in vivo antischistosomal activities of cnicin and its complexes with β-cyclodextrin (βCD) and 2-hydroxypropyl-β-cyclodextrin (HPβCD) against Schistosoma mansoni. Cnicin were isolated from C. benedicta by chromatographic fractionation. Complexes formed by cnicin and βCD (Cn/βCD), as well as by cnicin and HPβCD (Cn/HPβCD), were prepared by coprecipitation and characterized. In vitro schistosomicidal assays were used to evaluate the effects of cnicin and its complexes on adult schistosomes, while the in vivo antischistosomal assays were evaluated by oral and intraperitoneal routes. Results showed that cnicin caused mortality and tegumental alterations in adult schistosomes in vitro, also showing in vivo efficacy after intraperitoneal administration. The oral treatment with cnicin or Cn/βCD showed no significant worm reductions in a mouse model of schistosomiasis. In contrast, Cn/HPβCD complex, when orally or intraperitoneally administered to S. mansoni-infected mice, decreased the total worm load, and markedly reduced the number of eggs, showing high in vivo antischistosomal effectiveness. Permeability studies, using Nile red, indicated that HPβCD complex may reach the tegument of adult schistosomes in vivo. These results demonstrated the antischistosomal potential of cnicin in preparations with HPβCD.
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Grgić J, Šelo G, Planinić M, Tišma M, Bucić-Kojić A. Role of the Encapsulation in Bioavailability of Phenolic Compounds. Antioxidants (Basel) 2020; 9:E923. [PMID: 32993196 PMCID: PMC7601682 DOI: 10.3390/antiox9100923] [Citation(s) in RCA: 119] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 09/19/2020] [Accepted: 09/23/2020] [Indexed: 12/12/2022] Open
Abstract
Plant-derived phenolic compounds have multiple positive health effects for humans attributed to their antioxidative, anti-inflammatory, and antitumor properties, etc. These effects strongly depend on their bioavailability in the organism. Bioaccessibility, and consequently bioavailability of phenolic compounds significantly depend on the structure and form in which they are introduced into the organism, e.g., through a complex food matrix or as purified isolates. Furthermore, phenolic compounds interact with other macromolecules (proteins, lipids, dietary fibers, polysaccharides) in food or during digestion, which significantly influences their bioaccessibility in the organism, but due to the complexity of the mechanisms through which phenolic compounds act in the organism this area has still not been examined sufficiently. Simulated gastrointestinal digestion is one of the commonly used in vitro test for the assessment of phenolic compounds bioaccessibility. Encapsulation is a method that can positively affect bioaccessibility and bioavailability as it ensures the coating of the active component and its targeted delivery to a specific part of the digestive tract and controlled release. This comprehensive review aims to present the role of encapsulation in bioavailability of phenolic compounds as well as recent advances in coating materials used in encapsulation processes. The review is based on 258 recent literature references.
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Affiliation(s)
| | | | | | | | - Ana Bucić-Kojić
- Faculty of Food Technology Osijek, Josip Juraj Strossmayer University of Osijek, F. Kuhača 18, HR-31 000 Osijek, Croatia; (J.G.); (G.Š.); (M.P.); (M.T.)
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Hydrophobic nanoprecipitates formed by benzoylphenylureas and β-cyclodextrin inclusion compounds: synthesis, characterization and toxicity against aedes aegypti larvae. Heliyon 2019; 5:e02013. [PMID: 31321326 PMCID: PMC6612800 DOI: 10.1016/j.heliyon.2019.e02013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 06/24/2019] [Accepted: 06/25/2019] [Indexed: 12/20/2022] Open
Abstract
The aim of this work was to synthesize and characterize the inclusion compounds formed by the complexation of β-cyclodextrin (βCD) with insecticides from the class of benzoylphenylureas (BPUs), named novaluron (NOV) and diflubenzuron (DIF), beyond evaluate their larvicidal activity against Aedes aegypti larvae. Solid state characterization by FTIR showed changes in the main peaks of BPUs and βCD, suggesting the formation of inclusion compounds in solid phase. DTA and TGA thermal analysis showed changes in temperatures of BPUs decomposition as result of molecular interactions. 1H NMR experiments allowed to observe the occurrence of interactions in solution through changes in chemical shifts of BPUs aromatic hydrogens. However, the presence of H–H intermolecular correlations in 2D ROESY was found only for the DIF/βCD complex, suggesting different topology for each complex. Such hypothesis was corroborated by thermodynamic analysis using ITC, which showed different profile of titration curves, beyond endothermic and exothermic interactions for NOV/βCD and DIF/βCD complexes, respectively. DLS titrations of BPUs or BPUs/βCD DMSO solutions in aqueous solution demonstrated that the spontaneously formed hydrophobic nanoprecipitates (HNPs) have different profile of sizes depending on the BPU/βCD system, corroborating also with the hypothesis about the existence of different topologies for each complex. Finally, the HNPs of inclusion compounds showed to be more efficient than free BPUs, allowing proposing a new insecticide formulation.
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Dos Santos Moreira AM, Bittencourt VCE, Costa FLS, Elena de Lima M, Lopes MTP, Borges WS, Martins GF, Nascimento CS, da Silva JG, Denadai ÂML, Borges KB. Hydrophobic Nanoprecipitates of β-Cyclodextrin/Avermectins Inclusion Compounds Reveal Insecticide Activity against Aedes aegypti Larvae and Low Toxicity against Fibroblasts. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:7275-7285. [PMID: 29925239 DOI: 10.1021/acs.jafc.8b01300] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In the present work, hydrophobic nanoprecipitates (HNPs) of inclusion complexes formed between β-cyclodextrin (βCD) and the avermectins (AVMs) named eprinomectin (EPRI) and ivermectin (IVER) were synthesized and characterized, and their larvicidal activity against Aedes aegypti and human safety against fibroblasts were evaluated. Initially, thermogravimetric analysis/differential thermal analysis data revealed that inclusion increased the thermal stability of AVMs in the presence of βCD. Nuclear magnetic resonance experiments and density functional theory calculations pointed out the inclusion of the benzofuran ring of the two AVMs in the βCD cavity. Isothermal titration calorimetry experiments allowed identification of different binding constants for EPRI/βCD ( Kb = 1060) and βCD/IVER ( Kb = 1700) systems, despite the structural similarity. Dynamic light scattering titrations of AVMs' dimethyl sulfoxide solution in βCD aqueous solution demonstrated that the formed HNPs have lower sizes in the presence of βCD. Finally, the inclusion of EPRI in βCD increased its larval toxicity and reduced its human cytotoxicity, while for IVER/βCD no beneficial effect was observed upon inclusion. These results were rationalized in terms of structural differences between the two molecules. Finally, the EPRI/βCD complex has great potential as an insecticide against A. aegypti larvae with high human safety.
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Affiliation(s)
- Ana M Dos Santos Moreira
- Departamento de Ciências Naturais , Universidade Federal de São João del-Rei , Campus Dom Bosco , 36301-160 , São João del-Rei , Minas Gerais Brazil
- Departamento de Farmácia , Universidade Federal de Juiz de Fora , Campus Governador Valadares , 35010-177 , Governador Valadares , Minas Gerais , Brazil
| | - Vanessa C E Bittencourt
- Departamento de Farmácia , Universidade Federal de Juiz de Fora , Campus Governador Valadares , 35010-177 , Governador Valadares , Minas Gerais , Brazil
| | - Fábio L S Costa
- Departamento de Bioquímica e Imunologia , Universidade Federal de Minas Gerais , 31270-901 , Belo Horizonte , Minas Gerais , Brazil
| | - Maria Elena de Lima
- Departamento de Bioquímica e Imunologia , Universidade Federal de Minas Gerais , 31270-901 , Belo Horizonte , Minas Gerais , Brazil
| | - Miriam T P Lopes
- Departamento de Farmacologia , Universidade Federal de Minas Gerais , 31270-901 , Belo Horizonte , Minas Gerais , Brazil
| | - Warley S Borges
- Departamento de Química , Universidade Federal do Espírito Santo , Campus de Goiabeiras , 29075-910 , Vitória , Espírito Santo , Brazil
| | - Gustavo F Martins
- Departamento de Biologia Geral , Universidade Federal de Viçosa , Campus Universitário , 36570-900 , Viçosa , Minas Gerais , Brazil
| | - Clébio S Nascimento
- Departamento de Ciências Naturais , Universidade Federal de São João del-Rei , Campus Dom Bosco , 36301-160 , São João del-Rei , Minas Gerais Brazil
| | - Jeferson G da Silva
- Departamento de Farmácia , Universidade Federal de Juiz de Fora , Campus Governador Valadares , 35010-177 , Governador Valadares , Minas Gerais , Brazil
| | - Ângelo M L Denadai
- Departamento de Farmácia , Universidade Federal de Juiz de Fora , Campus Governador Valadares , 35010-177 , Governador Valadares , Minas Gerais , Brazil
| | - Keyller B Borges
- Departamento de Ciências Naturais , Universidade Federal de São João del-Rei , Campus Dom Bosco , 36301-160 , São João del-Rei , Minas Gerais Brazil
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De Paula WX, Denadai ÂML, Braga ANG, Shastri VP, Pinheiro SVB, Frezard F, Santos RAS, Sinisterra RD. A long-lasting oral preformulation of the angiotensin II AT1 receptor antagonist losartan. Drug Dev Ind Pharm 2018; 44:1498-1505. [PMID: 29683352 DOI: 10.1080/03639045.2018.1467923] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Losartan (Los), a non-peptidic orally active agent, reduces arterial pressure through specific and selective blockade of angiotensin II receptor AT1. However, this widely used AT1 antagonist presents low bioavailability and needs once or twice a day dosage. In order to improve its bioavailability, we used the host: guest strategy based on β-cyclodextrin (βCD). The results suggest that Los included in βCD showed a typical pulsatile release pattern after oral administration to rats, with increasing the levels of plasma of Los. In addition, the inclusion compound presented oral efficacy for 72 h, in contrast to Los alone, which shows antagonist effect for only 6 h. In transgenic (mREN2)L27 rats, the Los/βCD complex reduced blood pressure for about 6 d, whereas Los alone reduced blood pressure for only 2 d. More importantly, using this host: guest strategy, sustained release of Los for over a week via the oral route can be achieved without the need for encapsulation in a polymeric carrier. The proposed preformulation increased the efficacy reducing the dose or spacing between each dose intake.
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Affiliation(s)
- Washington X De Paula
- a Laboratório de Encapsulamento Molecular e Biomateriais (LEMB), Chemistry Department, Universidade Federal de Minas Gerais (UFMG) , Belo Horizonte , MG , Brazil
| | - Ângelo M L Denadai
- b Laboratório de Nanotecnologia dos Fluidos Complexos, Pharmacy Department, Universidade Federal de Juiz de Fora (UFJF) , Valadares , MG , Brazil
| | - Aline N G Braga
- c Biophysics and Physiology Department , Universidade Federal de Minas Gerais (UFMG) , Belo Horizonte , MG , Brazil
| | - V Prasad Shastri
- d Department of Chemistry , Pharmacy, and Earth Sciences, Institute for Macromolecular Chemistry and BIOSS Centre for Biological Signalling Studies, University of Freiburg , Freiburg , Germany
| | - Sérgio V B Pinheiro
- c Biophysics and Physiology Department , Universidade Federal de Minas Gerais (UFMG) , Belo Horizonte , MG , Brazil
| | - Frederic Frezard
- c Biophysics and Physiology Department , Universidade Federal de Minas Gerais (UFMG) , Belo Horizonte , MG , Brazil
| | - Robson A S Santos
- c Biophysics and Physiology Department , Universidade Federal de Minas Gerais (UFMG) , Belo Horizonte , MG , Brazil
| | - Ruben D Sinisterra
- a Laboratório de Encapsulamento Molecular e Biomateriais (LEMB), Chemistry Department, Universidade Federal de Minas Gerais (UFMG) , Belo Horizonte , MG , Brazil
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