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Buzzi R, Gugel I, Costa S, Molesini S, Boreale S, Baldini E, Marchetti N, Vertuani S, Pinelli P, Urciuoli S, Baldisserotto A, Manfredini S. Up-Cycling of Olea europaea L. Ancient Cultivars Side Products: Study of a Combined Cosmetic-Food Supplement Treatment Based on Leaves and Olive Mill Wastewater Extracts. Life (Basel) 2023; 13:1509. [PMID: 37511885 PMCID: PMC10381166 DOI: 10.3390/life13071509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 06/22/2023] [Accepted: 06/28/2023] [Indexed: 07/30/2023] Open
Abstract
In recent years, a reversal of the global economic framework has been taking place: from the linear model, there has been a gradual transition to a circular model where by-products from the agri-food industry are taken and transformed into value products (upcycling) rather than being disposed of. Olive tree pruning represents an important biomass currently used for combustion; however, the leaf part of the olive tree is rich in phenolic substances, including hydroxytyrosol. Mill wastewater is also discarded, but it still contains high amounts of hydroxytyrosol. In this study, cosmetic and food supplement formulations were prepared using biophenols extracted from leaves and wastewater and were tested in a placebo-controlled study on healthy volunteers using a combined cosmetic and food supplement treatment. A significant improvement in skin health indicators (collagen density, elasticity, etc.) and a 17% improvement against Photo-induced Irritative Stimulus was observed.
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Affiliation(s)
- Raissa Buzzi
- Department of Life Science and Biotechnology, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy
| | - Irene Gugel
- Department of Life Science and Biotechnology, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy
| | - Stefania Costa
- Department of Life Science and Biotechnology, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy
- Department of Chemical, Pharmaceutical and Agricultural Sciences, Via Fossato di Mortara 17, 44121 Ferrara, Italy
| | | | - Silvia Boreale
- Department of Life Science and Biotechnology, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy
| | - Erika Baldini
- Department of Life Science and Biotechnology, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy
| | - Nicola Marchetti
- Department of Chemical, Pharmaceutical and Agricultural Sciences, Via Fossato di Mortara 17, 44121 Ferrara, Italy
| | - Silvia Vertuani
- Department of Life Science and Biotechnology, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy
| | - Patrizia Pinelli
- Department of Statistics, Computer Sciences and Applications DiSIA-PHYTOLAB Laboratory, University of Florence, Via Ugo Schiff, 6, Sesto Fiorentino, 50019 Florence, Italy
| | - Silvia Urciuoli
- Department of Statistics, Computer Sciences and Applications DiSIA-PHYTOLAB Laboratory, University of Florence, Via Ugo Schiff, 6, Sesto Fiorentino, 50019 Florence, Italy
| | - Anna Baldisserotto
- Department of Life Science and Biotechnology, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy
| | - Stefano Manfredini
- Department of Life Science and Biotechnology, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy
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Baldisserotto A, Barbari R, Tupini C, Buzzi R, Durini E, Lampronti I, Manfredini S, Baldini E, Vertuani S. Multifunctional Profiling of Moringa oleifera Leaf Extracts for Topical Application: A Comparative Study of Different Collection Time. Antioxidants (Basel) 2023; 12:antiox12020411. [PMID: 36829968 PMCID: PMC9952562 DOI: 10.3390/antiox12020411] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 02/03/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
This research investigated plant extracts as a source of potential new actives in the nutritional, cosmetic, and pharmaceutical fields. Moringa oleifera, which is extensively known for its nutritional properties, has been investigated in this work by preparation, characterization, and evaluation of the antioxidant (FRAP, DPPH, ORAC, and PCL test), antifungal, photoprotective, and cytotoxicity profile against human melanoma Colo38 cell line of two different extracts (hydroalcoholic and methanolic) and one infusion of dry leaves collected from Paraguay in four distinct harvest times (February, March, April, and May 2017). The outcomes of this study highlight Moringa oleifera as a potential ally to counteract skin aging and oxidative stress, as indicated by the favorable antioxidant profile of the extracts and infusions of Paraguay, which was, in all cases, superior to that provided by the same plant species when collected from Senegal. Moreover, some samples were more efficient in preventing the photodegradation of UVA filter butyl methoxydibenzoylmethane (Avobenzone) compared to commercial filters, thus suggesting an interesting future role as natural additives in sunscreens.
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Affiliation(s)
- Anna Baldisserotto
- Department of Life Sciences and Biotechnology, Section of Medicines and Health Products, University of Ferrara, Via Fossato di Mortara 17–19, I-44121 Ferrara, Italy
- Correspondence: ; Tel.: +39-0532205258
| | - Riccardo Barbari
- Department of Life Sciences and Biotechnology, Section of Medicines and Health Products, University of Ferrara, Via Fossato di Mortara 17–19, I-44121 Ferrara, Italy
| | - Chiara Tupini
- Department of Life Sciences and Biotechnology, Section of Biochemistry and Molecular Biology, University of Ferrara, Via Fossato di Mortara 74, I-44121 Ferrara, Italy
| | - Raissa Buzzi
- Department of Life Sciences and Biotechnology, Section of Medicines and Health Products, University of Ferrara, Via Fossato di Mortara 17–19, I-44121 Ferrara, Italy
| | - Elisa Durini
- Department of Life Sciences and Biotechnology, Section of Medicines and Health Products, University of Ferrara, Via Fossato di Mortara 17–19, I-44121 Ferrara, Italy
| | - Ilaria Lampronti
- Department of Life Sciences and Biotechnology, Section of Biochemistry and Molecular Biology, University of Ferrara, Via Fossato di Mortara 74, I-44121 Ferrara, Italy
| | - Stefano Manfredini
- Department of Life Sciences and Biotechnology, Section of Medicines and Health Products, University of Ferrara, Via Fossato di Mortara 17–19, I-44121 Ferrara, Italy
| | - Erika Baldini
- Department of Life Sciences and Biotechnology, Section of Medicines and Health Products, University of Ferrara, Via Fossato di Mortara 17–19, I-44121 Ferrara, Italy
| | - Silvia Vertuani
- Department of Life Sciences and Biotechnology, Section of Medicines and Health Products, University of Ferrara, Via Fossato di Mortara 17–19, I-44121 Ferrara, Italy
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Guerrini A, Burlini I, Huerta Lorenzo B, Grandini A, Vertuani S, Tacchini M, Sacchetti G. Antioxidant and antimicrobial extracts obtained from agricultural by-products: Strategies for a sustainable recovery and future perspectives. FOOD AND BIOPRODUCTS PROCESSING 2020. [PMCID: PMC7553999 DOI: 10.1016/j.fbp.2020.10.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Antioxidant and antifungal activities of marrubiin, extracts and essential oil from Marrubium vulgare L. against pathogenic dermatophyte strains. J Mycol Med 2020; 30:100927. [PMID: 31983544 DOI: 10.1016/j.mycmed.2020.100927] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 03/22/2019] [Accepted: 01/06/2020] [Indexed: 01/10/2023]
Abstract
OBJECTIVE Medicinal plants extracts and plant-derived compounds are one of the natural sources for discovering new antifungal agents, the objectives of this work were to investigate for the first time the antidermatophytic, antipathogenic activities of methanol, acetone extracts, and essential oil of Marrubium vulgare L. grown in Tunisia and its active compound marrubiin on pathogenic for animals and humans, such as some dermatophytes and pathogenic for plants, and to evaluate antioxidant activities of different extracts with consideration to their chemical compositions. MATERIAL AND METHODS Acetone and methanol extracts were evaluated by HPLC, the essential oil was also analyzed by GC/MS. PCL assay was used to determine the antioxidant activity. RESULTS Results showed that methanol and acetone extracts exhibited a significant antioxidant activity (261.41 and 272.90μmol TE/g respectively), while the lowest one was observed in the case of marrubiin and essential oil. The antifungal activity of different extracts, marrubiin and essential oil at two concentrations (20 and 100μg/mL) were screened against the dermatophytes fungi Microsporum gypseum, Microsporum canis, Arthroderma cajetani, Trichophyton mentagrophytes, Trichophyton tonsurans, Epidermophyton floccosum and against two fungi strains (Botrytis cinerea, Pythium ultimum). Among tested extracts, marrubiin at 100μg/mL showed about 50% inhibition for T. mentagrophytes and E. floccosum. The anti-phytopathogenic activity was also carried out, only marrubiin had in activity against B. cinerea at the highest dose (32.40%), while methanol extract of M.vulgare and marrubiin are able to increase the mycelial growth of P. ultimum at the highest concentration (45.15 and 40.30% respectively). CONCLUSION In our study, we conclude that M.vulgare and marrubiin can be used as natural antioxidants and antifungal agent for treatment of skin dermatophyte infections.
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Synthesis and Characterization of New Multifunctional Self-Boosted Filters for UV Protection: ZnO Complex with Dihydroxyphenyl Benzimidazole Carboxylic Acid. Molecules 2019; 24:molecules24244546. [PMID: 31842340 PMCID: PMC6943673 DOI: 10.3390/molecules24244546] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Revised: 12/04/2019] [Accepted: 12/10/2019] [Indexed: 02/05/2023] Open
Abstract
The incidence of skin cancer is increasing both because of climate change and the increase in pollution than people’s incorrect habits of sun exposure. In these regards, sunscreen and photoprotection are essential tools in consenting the benefits induced by safe solar light exposition and skin cancer prevention. In this work, a new class of sunscreen filter was synthesized by chemical combination of a physical filter (ZnO) and Oxisol (dihydroxyphenyl benzimidazole carboxylic acid), an antioxidant molecule with booster effect. In this work, a new class of filters with new properties was achieved by direct functionalization of particles surface. A full characterization of this multifunctional ingredient (ZnO–Ox) was conducted: Compared with the simple mixture, the new filter acts as a multifunctional molecule showing a higher Sun Protection Factor (SPF), a better cytotoxic profile (MTT and NRU assay), and anti-acne activity. A strong reduction of photocatalytic activity of ZnO was observed, also improving the safety profile.
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Design, synthesis and biological activity of a novel Rutin analogue with improved lipid soluble properties. Bioorg Med Chem 2015; 23:264-71. [DOI: 10.1016/j.bmc.2014.10.023] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Revised: 10/08/2014] [Accepted: 10/15/2014] [Indexed: 12/11/2022]
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8
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Mota GSTD, Arantes AB, Sacchetti G, Spagnoletti A, Ziosi P, Scalambra E, Vertuani S, Manfredini S. Antioxidant Activity of Cosmetic Formulations Based on Novel Extracts from Seeds of Brazilian <i>Araucaria angustifolia</i> (Bertoll) Kuntze. ACTA ACUST UNITED AC 2014. [DOI: 10.4236/jcdsa.2014.43027] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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9
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Baldisserotto A, Malisardi G, Scalambra E, Andreotti E, Romagnoli C, Vicentini CB, Manfredini S, Vertuani S. Synthesis, antioxidant and antimicrobial activity of a new phloridzin derivative for dermo-cosmetic applications. Molecules 2012; 17:13275-89. [PMID: 23135632 PMCID: PMC6268407 DOI: 10.3390/molecules171113275] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Revised: 10/25/2012] [Accepted: 10/29/2012] [Indexed: 11/16/2022] Open
Abstract
The phenolic compound phloridzin (phloretin 2′-O-glucoside, variously named phlorizin, phlorrhizin, phlorhizin or phlorizoside) is a prominent member of the chemical class of dihydrochalcones, which are phenylpropanoids. Phloridzin is specifically found in apple and apple juice and known for its biological properties. In particular we were attracted by potential dermo-cosmetic applications. Here we report the synthesis, stability studies and antimicrobial activity of compound F2, a new semi-synthetic derivative of phloridzin. The new derivative was also included in finished formulations to evaluate its stability with a view to a potential topical use. Stability studies were performed by HPLC; PCL assay and ORAC tests were used to determine the antioxidant activity. F2 presented an antioxidant activity very close to that of the parent phloridzin, but, unlike the latter, was more stable in formulations. To further explore potential health claims, antifungal activity of phloridzin and its derivative F2 were determined; the results, however, were rather low; the highest value was 31,6% of inhibition reached by F2 on Microsporum canis at the highest dose.
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Affiliation(s)
- Anna Baldisserotto
- Department of Life Sciences and Biotechnology, University of Ferrara, Via Fossato di Mortara 17-19, 44121 Ferrara, Italy; (A.B.); (G.M.); (E.S.); (C.B.V.); (S.M.)
| | - Gemma Malisardi
- Department of Life Sciences and Biotechnology, University of Ferrara, Via Fossato di Mortara 17-19, 44121 Ferrara, Italy; (A.B.); (G.M.); (E.S.); (C.B.V.); (S.M.)
| | - Emanuela Scalambra
- Department of Life Sciences and Biotechnology, University of Ferrara, Via Fossato di Mortara 17-19, 44121 Ferrara, Italy; (A.B.); (G.M.); (E.S.); (C.B.V.); (S.M.)
| | - Elisa Andreotti
- Department of Life Sciences, University of Modena and Reggio Emilia, viale Caduti in Guerra 127, 41121 Modena, Italy; (E.A.); (C.R.)
| | - Carlo Romagnoli
- Department of Life Sciences, University of Modena and Reggio Emilia, viale Caduti in Guerra 127, 41121 Modena, Italy; (E.A.); (C.R.)
| | - Chiara Beatrice Vicentini
- Department of Life Sciences and Biotechnology, University of Ferrara, Via Fossato di Mortara 17-19, 44121 Ferrara, Italy; (A.B.); (G.M.); (E.S.); (C.B.V.); (S.M.)
| | - Stefano Manfredini
- Department of Life Sciences and Biotechnology, University of Ferrara, Via Fossato di Mortara 17-19, 44121 Ferrara, Italy; (A.B.); (G.M.); (E.S.); (C.B.V.); (S.M.)
- Ambrosialab, Via Mortara 171, 44121 Ferrara, Italy
| | - Silvia Vertuani
- Department of Life Sciences and Biotechnology, University of Ferrara, Via Fossato di Mortara 17-19, 44121 Ferrara, Italy; (A.B.); (G.M.); (E.S.); (C.B.V.); (S.M.)
- Ambrosialab, Via Mortara 171, 44121 Ferrara, Italy
- Author to whom correspondence should be addressed; mv9@unife; Tel.: +39-0532-455294; Fax: +39-0532-455378
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Craft BD, Kerrihard AL, Amarowicz R, Pegg RB. Phenol-Based Antioxidants and the In Vitro Methods Used for Their Assessment. Compr Rev Food Sci Food Saf 2012. [DOI: 10.1111/j.1541-4337.2011.00173.x] [Citation(s) in RCA: 241] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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11
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Activity and stability studies of verbascoside, a novel antioxidant, in dermo-cosmetic and pharmaceutical topical formulations. Molecules 2011; 16:7068-80. [PMID: 21852765 PMCID: PMC6264555 DOI: 10.3390/molecules16087068] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2011] [Revised: 08/10/2011] [Accepted: 08/11/2011] [Indexed: 11/16/2022] Open
Abstract
We here report the results of our investigations carried out on verbascoside, a phenylpropanoid glycoside known for its antioxidant, anti-inflammatory and photoprotective actions. Verbascoside was obtained from Buddleia davidii meristematic cells, obtained in turn using a sustainable biotechnology platform which employs an in vitro plant cell culture technology. Verbascoside was first investigated to assess the behaviour of the active ingredient in solution or in finished preparations, in view of its potential topical use, especially in skin protection. Stability studies were performed by HPLC, and a PCL assay was adopted to determine the radical scavenging activity toward superoxide anion. The high hydrophilic character of verbascoside, suggested in a somewhat limited range of possible applications, leading us to explore its derivatization to obtain the semi-synthetic derivative VPP, an acyl derivative of verbascoside, with an improved range of applications due to its lower hydrophilic profile. Alone, VPP revealed increased antioxidant activity, both as an active ingredient and in dermocosmetic preparations. Stability studies showed a greater stability of VPP in lipophilic vehicles, whereas the parent verbascoside proved more stable in an O/W emulsions. Verbascoside was also stable in suppositories, an interesting pharmaceutical form for possible applications in treatment of inflammation of the intestinal mucosa.
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Cejudo Bastante MJ, Durán Guerrero E, Castro Mejías R, Natera Marín R, Rodríguez Dodero MC, Barroso CG. Study of the polyphenolic composition and antioxidant activity of new sherry vinegar-derived products by maceration with fruits. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:11814-20. [PMID: 21080728 DOI: 10.1021/jf1029493] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Several experiments of maceration of a sherry wine vinegar with different fruits (orange, lemon, strawberry, grapefruit, and lime) have been carried out. After optimization (only peel, no heating and seven days as maximum time of maceration), parameters such as polyphenolic content, superoxide anion scavenging ability (related to antioxidant activity) and ascorbic acid content were determined in sherry wine vinegars macerated with two amounts of peel and for two maceration times (3 and 7 days). The analysis of variance pointed to a clear relationship (p<0.01) between type of fruit and amount of peel and polyphenolic content. The factor "time" was practically not significant for any polyphenol. Sherry wine vinegars macerated with different fruits exhibited higher superoxide anion scavenger ability, with the maximum values found for the vinegar macerated with lemon peel. The correlation analysis showed that the superoxide anion scavenger ability of the vinegars macerated, and thus their antioxidant activity, was highly correlated (p<0.01) with several polyphenols, especially with naringin, hesperidin, neohesperidin and gentisic acid and not with the ascorbic acid content.
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Affiliation(s)
- María Jesús Cejudo Bastante
- Analytical Chemistry Department, Faculty of Sciences, University of Cádiz, P.O. Box 40, E-11510, Pol. Río San Pedro, Puerto Real, Cádiz, Spain
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Zhai H, Cordoba-Diaz M, Wa C, Hui X, Maibach HI. Determination of the antioxidative capacity of an antioxidant complex and idebenone: an in vitro rapid and sensitive method. J Cosmet Dermatol 2008; 7:96-100. [DOI: 10.1111/j.1473-2165.2008.00370.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Ziosi P, Besco E, Vertuani S, Solaroli N, Manfredini S. A non-invasive method for the in vivo determination of skin antioxidant capacity (IAC-S�). Skin Res Technol 2006; 12:303-8. [PMID: 17026664 DOI: 10.1111/j.0909-752x.2006.00189.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND/PURPOSES Skin antioxidant network protects cells against oxidative injury and prevents the production of oxidation products. When oxidative stress overwhelms the skin antioxidant capacity, the subsequent modification of the cellular redox apparatus leads to an alteration of cell homeostasis leading to degenerative processes. In the dermocosmetic field, the topical application of antioxidants is often suggested as a possible strategy to prevent and modulate oxidative skin damages. Continuing our studies addressed to set-up new bio-engineering protocols for the claim substantiation of antioxidant cosmetic products, we have developed a new non-invasive methodology for the evaluation of antioxidants cosmetics ingredients and finished products. METHODS The effects of a pre-treatment on forearm skin with an antioxidant ingredient were investigated on 15 volunteers, in a double-blind randomised fashion. A non-invasive method was devised that comprises the collection of forehead SC layers of the pre-treated area and control and the next evaluation of skin antioxidant capacity (IAC-S) by a luminescence-based method. RESULTS The results showed that the antioxidant preparation was able to increase, to a statistically significant extent (P<0.01), the IAC-S in comparison with the control area. The data were confirmed (P<0.05) by comparison with a method, previously developed by us, based on DermAnalyzer. CONCLUSIONS In view of the simplicity and reliability of the method here presented, this new technique is proposed as a possible tool for the routine evaluation of in vivo efficacy of antioxidant functional ingredients and finished products.
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Affiliation(s)
- Paola Ziosi
- Dipartimento di Scienze Farmaceutiche, Università degli studi di Ferrara, Ferrara, Italy
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Zhai H, Behnam S, Villarama CD, Arens-Corell M, Choi MJ, Maibach HI. Evaluation of the Antioxidant Capacity and Preventive Effects of a Topical Emulsion and Its Vehicle Control on the Skin Response to UV Exposure. Skin Pharmacol Physiol 2005; 18:288-93. [PMID: 16145283 DOI: 10.1159/000088014] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2005] [Accepted: 06/29/2005] [Indexed: 11/19/2022]
Abstract
Supplying topical exogenous antioxidants to the skin may prevent or minimize free radical-induced damaging. This study determines antioxidative capacity of a topical skin care emulsion (an oil-in-water vitamin E-containing formulation) versus its vehicle on human skin that was exposed to ultraviolet radiation (UVR) by utilizing a photochemiluminescence device and biophysical methods. Ten healthy Caucasians (3 male and 7 female; mean age 47 +/- 10 years) were enrolled. In a randomized and double-blind manner, a pH-balanced vitamin E emulsion or its vehicle control was applied onto predesignated forearm prior to UVR exposure. Thirty minutes after application, these test sites were exposed to a UV light to induce the minimal erythema dose. One untreated site served as a blank control. Visual scoring and instrumental measurements were recorded at baseline and at 24 h and 48 h thereafter. At day 3, after completing instrumental measurements, each test site was stripped three times in a consecutive manner with a proprietary adhesive tape disc. These tapes were quantified for antioxidant capacity using a photochemiluminescence device. Vitamin E emulsion and vehicle control significantly (p < 0.05) suppressed visual scores when compared with blank control at day 2 and day 3 after UV exposure. However, vitamin E emulsion showed significantly (p < 0.05) lower visual scores when compared with vehicle control at day 2 and day 3 after UV exposure.Also,vitamin E emulsion and its vehicle control significantly (p < 0.05) diminished skin color measurement (a*) values when compared with blank control at day 2 and day 3 after UV exposure. At day 2 after UV exposure, only vitamin E emulsion significantly (p < 0.05) reduced skin blood flow volume when compared with blank control. Vitamin E emulsion and its vehicle control showed significant (p < 0.05) reduction of blood flow volume when compared with blank control at day 3 after UV exposure. Vitamin E emulsion and its vehicle control proved effective in preventing induction of erythema and reducing inflammatory damage caused by UV exposure. The effect of vitamin E emulsion exceeded that of an 'active control'.
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Affiliation(s)
- H Zhai
- Department of Dermatology, School of Medicine, University of California, San Francisco, 94143, USA.
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Popov I, Lewin G. Photochemiluminescent detection of antiradical activity. VII. Comparison with a modified method of thermo-initiated free radical generation with chemiluminescent detection. LUMINESCENCE 2005; 20:321-5. [PMID: 16134220 DOI: 10.1002/bio.856] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The method of photosensitized chemiluminescence (PCL) allows the quantification of water- and lipid-soluble antioxidants and activity of superoxide dismutase (SOD) in the same measuring system. However, it needs a special device, which we have described in a previous paper in this series. Another method suitable for the assay of water- and lipid-soluble antioxidants is the thermo-initiated decay of azo-compounds combined with the measurement of O2 consumption (Niki, 1985; Wayner et al., 1985). Its long duration and the complicated measuring procedure is not acceptable for routine medical applications. We show that a modification using CL detection of free radicals with luminol, has results comparable with PCL for the determination of non-enzymic water- and lipid-soluble antioxidants, SOD activity and oxidative modification of proteins. In contrast to PCL, it is possible to use any luminometer with a heatable measuring cell and to investigate coloured samples. While the new method has an overall higher sensitivity and is scalable to microtitre plates, PCL measurements can be made at different pH. The advantages and analytical information content of certain components of the integral antioxidative capacity of blood plasma are discussed in comparison with other methods.
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Affiliation(s)
- I Popov
- Research Institute for Antioxidant Therapy GmbH, Berlin, Germany.
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Zhai H, Choi MJ, Arens-Corell M, Neudecker BA, Maibach HI. A rapid, accurate, and facile method to quantify the antioxidative capacity of topical formulations. Skin Res Technol 2003; 9:254-6. [PMID: 12877687 DOI: 10.1034/j.1600-0846.2003.00032.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND/AIMS Various methodologies have been developed to quantify antioxidant activity. A simple, rapid and accurate method is demanded. This study examined the antioxidative status of a pH balanced vitamin E containing formulation versus its vehicle control utilizing a photochemiluminescence device. METHODS/RESULTS A pH balanced 5% Vitamin E containing formulation and its vehicle control were tested. The quantity of antioxidant capacity for the pH balanced vitamin E formulation and its vehicle control were 2.28 +/- 0.05 and 0.16 +/- 0.03, respectively. The pH balanced vitamin E formulation showed a significant (P < 0.001) higher antioxidant capacity compared to its vehicle control. CONCLUSIONS This method not only provides quantitative data, but also is rapid, accurate, and facile in performance. The in vitro data obtained in this study require validation by in vivo studies to properly place them in context to alternate methods.
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Affiliation(s)
- Hongbo Zhai
- Department of Dermatology, University of California San Francisco, CA 94143-0989, USA
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Popov I, Völker H, Lewin G. Photochemiluminescent detection of antiradical activity. V. Application in combination with the hydrogen peroxide-initiated chemiluminescence of blood plasma proteins to evaluate antioxidant homeostasis in humans. Redox Rep 2001; 6:43-8. [PMID: 11333115 DOI: 10.1179/135100001101536021] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Disturbance of the steady state between pro- and antioxidants in tissues is an important aetiopathogenetic factor. Two method--(i) photosensitized chemiluminescence for detection of antiradical activity and (ii) hydrogen peroxide-initiated chemiluminescence of plasma proteins (CLP) and erythrocytes (CLE)--were tested in 136 healthy donors and 82 patients with untreated breast tumours for their applicability to detecting disturbances in antioxidant homeostasis in humans. The total antiradical capacity of water-soluble substances (ACW) and its urate-independent proportion (ACU) were lower (P <0.05) and CLP higher (P <0.001) in smokers in comparison to non-smokers. A significant negative correlation was found between the content of ascorbate in plasma and the intensity of CLP: r = -0.39, P <0.001. A significant reduction in ACU and increased values of CLP and CLE were seen according to the stage of disease in breast cancer patients. On the basis of these observations and model experiments we suggest that hydrogen peroxide-initiated chemiluminescence can serve as a parameter of oxidative modification of blood components and, in combination with the antioxidant parameters, can be used to describe the antioxidant homeostasis in humans and possibly to have value as a predictor of disease states.
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Affiliation(s)
- I Popov
- Research Institute of Antioxidant Therapy, Berlin, Germany.
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Popov I, Lewin G. Antioxidative homeostasis: characterization by means of chemiluminescent technique. Methods Enzymol 1999; 300:437-56. [PMID: 9919545 DOI: 10.1016/s0076-6879(99)00149-4] [Citation(s) in RCA: 92] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Affiliation(s)
- I Popov
- Research Institute for Antioxidant Therapy, Berlin, Germany
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Benzie IF. An automated, specific, spectrophotometric method for measuring ascorbic acid in plasma (EFTSA). Clin Biochem 1996; 29:111-6. [PMID: 8601318 DOI: 10.1016/0009-9120(95)02013-6] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
OBJECTIVE To evaluate an automated enzyme linked, ferric-tripyridyltriazine spectrophotometric assay (EFTSA) for plasma ascorbic acid. DESIGN AND METHODS Using aqueous ascorbic acid solutions and plasma containing native and/or added ascorbic acid, the following were assessed: reaction kinetics, dose response relationships, recovery of added ascorbic acid, specificity, precision. RESULTS Performing the test on a Cobas Fara centrifugal analyser, the test is linear at least to 400 micromol/L; within-run CVs at 20, 50, 140, and 300 micromol/L ascorbic acid, in both pure aqueous solutions and in plasma, were <5.5%; 99-105% of added ascorbic acid (from 30-130 micromol/L) was recovered. The reaction of ascorbic acid is virtually instantaneous; other native antioxidants do not appear to interfere, and there is no interference by dehydroascorbic acid when readings are taken within a 15-60-s reaction time window. CONCLUSION EFTSA appears suitable for the routine measurement of ascorbic acid in plasma.
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Affiliation(s)
- I F Benzie
- Department of Health Sciences, Hong Kong Polytechnic University, Hong Kong
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Popov IN, Lewin G. Photochemiluminescent detection of antiradical activity; IV: testing of lipid-soluble antioxidants. JOURNAL OF BIOCHEMICAL AND BIOPHYSICAL METHODS 1996; 31:1-8. [PMID: 8926333 DOI: 10.1016/0165-022x(95)00021-i] [Citation(s) in RCA: 78] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A new method for quantification of antiradical properties of pure lipid-soluble antioxidants and for measurement of integral antioxidant capacity in the lipid phase (ACL) of polycomponent systems, such as blood plasma or tissue homogenates, is developed. It is based on an antioxidant-sensitive inhibition of a photo-induced, chemiluminescence accompanied autoxidation of luminol. The sensitivity of the photochemiluminescent (PCL) assay lies within nmol quantities of substances, the measuring range for alpha-tocopherol is between 0.1 and 3 nmol. The interassay variability of the method is lower than 5%, the intraassay variability <2%. The antioxidant efficiency of gamma-tocopherol was found to be 43% of alpha-tocopherol. The results of the PCL measurements on pure antioxidants and on lipid extracts from blood plasma were compared with the level of, 'vitamin E' (VE) determined as a sum of alpha- and gamma-tocopherol by HPLC. Very good coincidence of both methods was observed for pure substances (r = 0.998, P<0.001). The ACL of human blood plasma was found to be 27.98 +/- 0.68 mumol equivalents of alpha-tocopherol/l (mean +/- mean error, n = 142), it is approximately 25% more than the concentration of VE found in the same samples (22.09 +/- 0.59 mumol/l). In this case, the correlation of both parameters was lower. r = 0.811, P<0.001. The animal experiments showed that synthetic antioxidants may not only increase the value of ACL of blood plasma but in the same time reduce the concentration of biological antioxidants, e.g. VE drastically. The prooxidant activity of synthetic antioxidants in vivo or the replacing of structured alpha-tocopherol from its position can be the cause. This important circumstance has to be considered during the testing of new antioxidants for clinical application.
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Affiliation(s)
- I N Popov
- Research Institute for Antioxidant Therapy, Berlin, Germany
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