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Luque GC, Moya M, Picchio ML, Bagnarello V, Valerio I, Bolaños J, Vethencourt M, Gamboa SH, Tomé LC, Minari RJ, Mecerreyes D. Polyphenol Iongel Patches with Antimicrobial, Antioxidant and Anti-Inflammatory Properties. Polymers (Basel) 2023; 15:polym15051076. [PMID: 36904316 PMCID: PMC10007217 DOI: 10.3390/polym15051076] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 02/11/2023] [Accepted: 02/13/2023] [Indexed: 02/24/2023] Open
Abstract
There is an actual need for developing materials for wound healing applications with anti-inflammatory, antioxidant, or antibacterial properties in order to improve the healing performance. In this work, we report the preparation and characterization of soft and bioactive iongel materials for patches, based on polymeric poly(vinyl alcohol) (PVA) and four ionic liquids containing the cholinium cation and different phenolic acid anions, namely cholinium salicylate ([Ch][Sal]), cholinium gallate ([Ch][Ga]), cholinium vanillate ([Ch][Van]), and cholinium caffeate ([Ch][Caff]). Within the iongels, the phenolic motif in the ionic liquids plays a dual role, acting as a PVA crosslinker and a bioactive compound. The obtained iongels are flexible, elastic, ionic conducting, and thermoreversible materials. Moreover, the iongels demonstrated high biocompatibility, non-hemolytic activity, and non-agglutination in mice blood, which are key-sought material specifications in wound healing applications. All the iongels have shown antibacterial properties, being PVA-[Ch][Sal], the one with higher inhibition halo for Escherichia Coli. The iongels also revealed high values of antioxidant activity due to the presence of the polyphenol, with the PVA-[Ch][Van] iongel having the highest activity. Finally, the iongels show a decrease in NO production in LPS-stimulated macrophages, with the PVA-[Ch][Sal] iongel displaying the best anti-inflammatory activity (>63% at 200 µg/mL).
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Affiliation(s)
- Gisela C. Luque
- Instituto de Desarrollo Tecnológico para la Industria Química (INTEC), CONICET, Güemes 3450, Santa Fe 3000, Argentina
- Correspondence: (G.C.L.); (R.J.M.); (D.M.)
| | - Melissa Moya
- Laboratorio de Investigación, Universidad de Ciencias Médicas, San José 10108, Costa Rica
- Facultad de Microbiología, Universidad de Ciencias Médicas, San José 10108, Costa Rica
| | - Matias L. Picchio
- Instituto de Desarrollo Tecnológico para la Industria Química (INTEC), CONICET, Güemes 3450, Santa Fe 3000, Argentina
- POLYMAT, University of the Basque Country UPV/EHU, Joxe Mari Korta Center, Avda. Tolosa 72, 20018 Donostia-San Sebastian, Spain
| | - Vanessa Bagnarello
- Laboratorio de Investigación, Universidad de Ciencias Médicas, San José 10108, Costa Rica
- Escuela de Fisioterapia, Universidad de Ciencias Médicas, San José 10108, Costa Rica
| | - Idalia Valerio
- Laboratorio de Investigación, Universidad de Ciencias Médicas, San José 10108, Costa Rica
- Facultad de Microbiología, Universidad de Ciencias Médicas, San José 10108, Costa Rica
- Facultad de Medicina, Universidad de Ciencias Médicas, San José 10108, Costa Rica
| | - José Bolaños
- Laboratorio de Investigación, Universidad de Ciencias Médicas, San José 10108, Costa Rica
| | - María Vethencourt
- Laboratorio de Investigación, Universidad de Ciencias Médicas, San José 10108, Costa Rica
| | - Sue-Hellen Gamboa
- Facultad de Microbiología, Universidad de Ciencias Médicas, San José 10108, Costa Rica
- Facultad de Medicina, Universidad de Ciencias Médicas, San José 10108, Costa Rica
| | - Liliana C. Tomé
- LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology, FCT NOVA, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Roque J. Minari
- Instituto de Desarrollo Tecnológico para la Industria Química (INTEC), CONICET, Güemes 3450, Santa Fe 3000, Argentina
- Facultad de Ingeniería Química, Universidad Nacional del Litoral, Santiago del Estero 2829, Santa Fe 3000, Argentina
- Correspondence: (G.C.L.); (R.J.M.); (D.M.)
| | - David Mecerreyes
- POLYMAT, University of the Basque Country UPV/EHU, Joxe Mari Korta Center, Avda. Tolosa 72, 20018 Donostia-San Sebastian, Spain
- Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain
- Correspondence: (G.C.L.); (R.J.M.); (D.M.)
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Loria KG, Pilosof AM, Farías ME. Self-association of caseinomacropeptide in presence of CaCl2 at neutral pH: Calcium binding determination. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Surface engineering of 3D-printed scaffolds with minerals and a pro-angiogenic factor for vascularized bone regeneration. Acta Biomater 2022; 140:730-744. [PMID: 34896633 DOI: 10.1016/j.actbio.2021.12.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 11/19/2021] [Accepted: 12/05/2021] [Indexed: 11/22/2022]
Abstract
Scaffolds functionalized with biomolecules have been developed for bone regeneration but inducing the regeneration of complex structured bone with neovessels remains a challenge. For this study, we developed three-dimensional printed scaffolds with bioactive surfaces coated with minerals and platelet-derived growth factor. The minerals were homogeneously deposited on the surface of the scaffold using 0.01 M NaHCO3 with epigallocatechin gallate in simulated body fluid solution (M2). The M2 scaffold demonstrated enhanced mineral coating amount per scaffold with a greater compressive modulus than the others which used different concentration of NaHCO3. Then, we immobilized PDGF on the mineralized scaffold (M2/P), which enhanced the osteogenic differentiation of human adipose derived stem cells in vitro and promoted the secretion of pro-angiogenic factors. Cells cultured in M2/P showed remarkable ratio of osteocalcin- and osteopontin-positive nuclei, and M2/P-derived medium induced endothelial cells to form tubule structures. Finally, the implanted M2/P scaffolds onto mouse calvarial defects had regenerated bone in 80.8 ± 9.8% of the defect area with the arterioles were formed, after 8 weeks. In summary, our scaffold, which composed of minerals and pro-angiogenic growth factor, could be used therapeutically to improve the regeneration of bone with a highly vascularized structure. STATEMENT OF SIGNIFICANCE: Surface engineered scaffolds have been developed for bone regeneration but inducing the volumetric regeneration of bone with neovessels remains a challenge. In here, we developed 3D printed scaffolds with bioactive surfaces coated with bio-minerals and platelet-derived growth factors. We proved that the 0.01 M NaHCO3 with polyphenol in simulated body fluid solution enhanced the deposition of bio-minerals and even distribution on the surface of scaffold. The in vitro studies demonstrated that the attached cells on the bioactive surface showed the enhanced osteogenic differentiation and secretion of pro-angiogenic factors. Finally, the scaffold with bioactive surface not only improved the regenerated volume of bone tissues but also increased neovessel formation after in vivo implantation onto mouse calvarial defect.
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Jiang Y, Liu XC, Ahrné LM, Skibsted LH. Enthalpy-entropy compensation in calcium binding to acid-base forms of glycine tyrosine dipeptides from hydrolysis of α-lactalbumin. Food Res Int 2021; 149:110714. [PMID: 34600648 DOI: 10.1016/j.foodres.2021.110714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 09/02/2021] [Accepted: 09/10/2021] [Indexed: 11/27/2022]
Abstract
Calcium binding to peptides formed by hydrolysis of whey proteins during digestion is important for calcium uptake in the intestines and affects the antioxidant function of the peptides. For the two dipeptides, Gly-Tyr and Tyr-Gly, potential hydrolysis products of α-lactalbumin, calcium binding to the three forms of each dipeptide in acid-base equilibrium at intestinal pH was determined electrochemically and compared to binding to tyrosine for aqueous 0.16 M NaCl for 5 < pH < 9 at 15 °C, 25 °C, and 37 °C. At milk pH at 25 °C, binding of calcium to the zwitterion of GlyTyr dominates, with an association constant Kass2 = 22 M-1 with ΔH0 = -46 kJ·mol-1, while binding to the mononegative TyrGly dominates for TyrGly with Kass3 = 32 M-1 and ΔH0 = -38 kJ·mol-1. At intestinal conditions, pH = 7 and 37 °C, binding of calcium has similar affinity for GlyTyr and TyrGly, while at higher pH and lower temperature, GlyTyr binds stronger. Density Functional Theory calculations confirmed a stronger binding to the zwitterion of GlyTyr than of TyrGly and an increasing affinity with increasing pH for both. Calcium binding to the acid/base forms of the dipeptides is at neutral pH strongly exothermic with ΔH0 becoming less negative at higher pH, and a linear enthalpy-entropy compensation (r2 = 0.99) results in comparable binding important for calcium bioavailability along the changing distribution among acid-base forms. Calcium binding decreases radical scavenging rate and antioxidative activity of both dipeptides.
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Affiliation(s)
- Yuan Jiang
- Department of Food Science, University of Copenhagen, Rolighedsvej 26, DK-1958 Frederiksberg C, Denmark
| | - Xiao-Chen Liu
- Department of Food Science, University of Copenhagen, Rolighedsvej 26, DK-1958 Frederiksberg C, Denmark
| | - Lilia M Ahrné
- Department of Food Science, University of Copenhagen, Rolighedsvej 26, DK-1958 Frederiksberg C, Denmark
| | - Leif H Skibsted
- Department of Food Science, University of Copenhagen, Rolighedsvej 26, DK-1958 Frederiksberg C, Denmark.
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Duru CE, Duru IA, Adegboyega AE. In silico identification of compounds from Nigella sativa seed oil as potential inhibitors of SARS-CoV-2 targets. BULLETIN OF THE NATIONAL RESEARCH CENTRE 2021; 45:57. [PMID: 33727782 PMCID: PMC7952832 DOI: 10.1186/s42269-021-00517-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 02/28/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND The growing number of cases, severity and fatality of the COVID-19 pandemic, coupled with the fact that no cure has been found has made infected individuals especially in Africa, to resort to the consumption of different natural products to alleviate their condition. One of such plant materials that have been consumed to remedy the severity of this viral infection is the oil of Nigella sativa seed commonly called black seed oil. In this study, we extracted and characterized the oil from this seed using gas chromatography coupled to a mass selective detector to identify the component phytochemicals. Site-directed multiligand docking of the identified compounds was performed on SARS-CoV-2 molecular targets- Replicase polyprotein 1a, RNA binding protein of NSP9, ADP ribose phosphatase of NSP3, 3-chymotrypsin-like protease 3CLpro, and RNA-dependent RNA polymerase RDRP, and ACE2-angiotensin-converting enzyme from the Homo sapiens. RESULTS The binding affinity of caryophyllene oxide was the highest on 3CLpro (- 6.0 kcal/mol), NSP3 (- 6.3 kcal/mol), NSP9 (- 6.3 kcal/mol), and RDRP (- 6.9 kcal/mol) targets, while α-bergamotene gave the best binding affinity on RPIA (5.7 kcal/mol) target. The binding affinity of β-bisabolene on the ACE2 target (- 8.0 kcal/mol) was almost the same as Remdesivir (- 8.1 kcal/mol). The ADMET properties of these three phytochemicals showed that they are good drug leads for these SARS-CoV-2 receptors. CONCLUSION The findings from this study strongly indicate that the reported recovery from COVID-19 infection claimed by patients who consumed black seed oil could be linked to the presence of caryophyllene oxide, α-bergamotene, and β-bisabolene in this natural product.
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Affiliation(s)
- Chidi Edbert Duru
- Surface Chemistry and Environmental Technology (SCENT) Research Unit, Department of Chemistry, Imo State University, Owerri, Imo State Nigeria
| | - Ijeoma Akunna Duru
- Department of Chemistry, Federal University of Technology, Owerri, Imo State Nigeria
| | - Abayomi Emmanuel Adegboyega
- Department of Biochemistry, Faculty of Medical Sciences, University of Jos, Jos, Plateau State Nigeria
- Africa Center of Excellence in Phytomedicine Research and Development, University of Jos, Jos, Plateau State Nigeria
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de Zawadzki A, Paganelli MO, Garcia AC, Skibsted LH. Hydroxycarboxylate combinations for increasing solubility and robustness of supersaturated solutions of whey mineral residues. Food Res Int 2020; 136:109525. [PMID: 32846592 DOI: 10.1016/j.foodres.2020.109525] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 06/24/2020] [Accepted: 07/06/2020] [Indexed: 10/23/2022]
Abstract
Calcium phosphates present in whey mineral residue is a potential source of calcium for dietary purposes. Combinations of aqueous isocitrate and citrate were found more efficient than each of the isomers in dissolving dried insoluble whey processing mineral residues spontaneously forming supersaturated solutions. Hydrogen isocitrate was found around 30% less efficient in these non thermal dissolution processes compared to hydrogen citrate based on amount of dissolved calcium. In contrast, the lag phase of up to 4 h for precipitation of calcium citrate from the supersaturated solutions was significantly longer when calcium isocitrate was present. Highest degree of supersaturation with longest lag phase for precipitation was found for citrate/isocitrate combinations in a 1:1 ratio. Addition of calcium saccharate during dissolution further prolonged the lag phase simultaneously preserving the higher supersaturation degrees. Combinations of the three hydroxycarboxylates seem accordingly to provide a basis for increasing calcium availability from dried whey mineral fractions consisting mainly of calcium hydrogen phosphate and hydroxyapatite of low solubility with the perspective of transforming a side stream from cheese production into valuable functional foods.
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Affiliation(s)
- Andressa de Zawadzki
- Department of Food Science, University of Copenhagen, Rolighedsvej 26, DK-1958 Frederiksberg C, Denmark
| | - Marcella Oliva Paganelli
- Department of Food Science, University of Copenhagen, Rolighedsvej 26, DK-1958 Frederiksberg C, Denmark; Instituto de Química de São Carlos, Universidade de São Paulo, Av. Trabalhador São-Carlense 400, CP 780 São Carlos, Brazil
| | - André Castilho Garcia
- Instituto Federal de Educação, Ciência e Tecnologia de São Paulo, Campus Capivari, Avenida Doutor Ênio Pires de Camargo, 2971, São João Batista, CEP: 13360-000 Capivari, SP, Brazil
| | - Leif H Skibsted
- Department of Food Science, University of Copenhagen, Rolighedsvej 26, DK-1958 Frederiksberg C, Denmark.
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Zhou J, Gao G, Zhang S, Wang H, Ke L, Zhou J, Rao P, Wang Q, Li J. Influences of calcium and magnesium ions on cellular antioxidant activity (CAA) determination. Food Chem 2020; 320:126625. [PMID: 32203839 DOI: 10.1016/j.foodchem.2020.126625] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 03/08/2020] [Accepted: 03/15/2020] [Indexed: 12/14/2022]
Abstract
The cellular antioxidant activity (CAA) assay is wildly used for quantifying antioxidant activities of foods and dietary supplements in vitro. Among various incubation and handling buffers used in different laboratories, the inconsistence in concentrations of ions, particularly calcium and magnesium, has somehow been neglected. We hired the Hank's balanced salt solution with or without calcium and magnesium to perform CAA assay in Caco-2 cells and HepG2 cells, evaluating the impacts of these cations. The absence of calcium and magnesium reduced intracellular ROS level and underestimated the CAA of quercetin, Trolox and catechin. The abnormally high extracellular calcium and magnesium can also produce inaccurate results. Hank's buffer is recommended to ensure the accuracy and reproducibility. It elucidates precautions must be taken on these cations' concentrations of the buffers while conducting CAA determinations on different types of cells and when comparing foods and beverages with various calcium/magnesium contents.
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Affiliation(s)
- Jingru Zhou
- SIBS-Zhejiang Gongshang University Joint Centre for Food and Nutrition Sciences, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Guanzhen Gao
- SIBS-Zhejiang Gongshang University Joint Centre for Food and Nutrition Sciences, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Suyun Zhang
- SIBS-Zhejiang Gongshang University Joint Centre for Food and Nutrition Sciences, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Huiqin Wang
- SIBS-Zhejiang Gongshang University Joint Centre for Food and Nutrition Sciences, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Lijing Ke
- SIBS-Zhejiang Gongshang University Joint Centre for Food and Nutrition Sciences, Zhejiang Gongshang University, Hangzhou 310012, China.
| | - Jianwu Zhou
- SIBS-Zhejiang Gongshang University Joint Centre for Food and Nutrition Sciences, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Pingfan Rao
- SIBS-Zhejiang Gongshang University Joint Centre for Food and Nutrition Sciences, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Qiang Wang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Jiaxing Li
- Hunan Salt Industry Co., Ltd., Changsha 410004, China
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