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Singh A, Singh J, Parween G, Khator R, Monga V. A comprehensive review of apigenin a dietary flavonoid: biological sources, nutraceutical prospects, chemistry and pharmacological insights and health benefits. Crit Rev Food Sci Nutr 2024:1-37. [PMID: 39154213 DOI: 10.1080/10408398.2024.2390550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/19/2024]
Abstract
A multitude of plant-derived bioactive compounds have shown significant promise in preventing chronic illnesses, with flavonoids constituting a substantial class of naturally occurring polyphenolic compounds. Apigenin, a flavone identified as 4',5,7-trihydroxyflavone, holds immense promise as a preventative agent against chronic illnesses. Despite its extensive research and recognized nutraceutical value, its therapeutic application remains underexplored, necessitating further clinical investigations. This review delves into the biological sources, nutraceutical prospects, chemistry, pharmacological insights, and health benefits of apigenin. Through multifaceted analytical studies, we explore its diverse pharmacological profile and potential therapeutic applications across various health domains. The manuscript comprehensively examines apigenin's role as a neuroprotective , anti-inflammatory compound, and a potent antioxidant agent. Additionally, its efficacy in combating cardiovascular diseases, anti-diabetic properties, and anticancer potential has been discussed. Furthermore, the antimicrobial attributes and the challenges surrounding its bioavailability, particularly from herbal supplements have been addressed. Available in diverse forms including tablets, capsules, solid dispersions, co-crystals, inclusion complexes and nano formulations. Additionally, it is prevalent as a nutraceutical supplement in herbal formulations. While strides have been made in overcoming pharmacokinetic hurdles, further research into apigenin's clinical effectiveness and bioavailability from herbal supplements remains imperative for its widespread utilization in preventive medicine.
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Affiliation(s)
- Abhinav Singh
- Drug Design and Molecular Synthesis Laboratory, Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, VPO-Ghudda, Bathinda, India
| | - Jagjit Singh
- Drug Design and Molecular Synthesis Laboratory, Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, VPO-Ghudda, Bathinda, India
| | - Gulistan Parween
- Drug Design and Molecular Synthesis Laboratory, Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, VPO-Ghudda, Bathinda, India
| | - Rakesh Khator
- Drug Design and Molecular Synthesis Laboratory, Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, VPO-Ghudda, Bathinda, India
| | - Vikramdeep Monga
- Drug Design and Molecular Synthesis Laboratory, Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, VPO-Ghudda, Bathinda, India
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Flórez González SJ, Stashenko EE, Ocazionez RE, Vinardell MP, Fuentes JL. In vitro Safety Assessment of Extracts and Compounds From Plants as Sunscreen Ingredients. Int J Toxicol 2024; 43:243-252. [PMID: 38183303 DOI: 10.1177/10915818231225661] [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] [Indexed: 01/08/2024]
Abstract
This work investigated the safety of extracts obtained from plants growing in Colombia, which have previously shown UV-filter/antigenotoxic properties. The compounds in plant extracts obtained by the supercritical fluid (CO2) extraction method were identified using gas chromatography coupled to mass spectrometry (GC/MS) analysis. Cytotoxicity measured as cytotoxic concentration 50% (CC50) and genotoxicity of the plant extracts and some compounds were studied in human fibroblasts using the trypan blue exclusion assay and the Comet assay, respectively. The extracts from Pipper eriopodon and Salvia aratocensis species and the compound trans-β-caryophyllene were clearly cytotoxic to human fibroblasts. Conversely, Achyrocline satureioides, Chromolaena pellia, and Lippia origanoides extracts were relatively less cytotoxic with CC50 values of 173, 184, and 89 μg/mL, respectively. The C. pellia and L. origanoides extracts produced some degree of DNA breaks at cytotoxic concentrations. The cytotoxicity of the studied compounds was as follows, with lower CC50 values representing the most cytotoxic compounds: resveratrol (91 μM) > pinocembrin (144 μM) > quercetin (222 μM) > titanium dioxide (704 μM). Quercetin was unique among the compounds assayed in being genotoxic to human fibroblasts. Our work indicates that phytochemicals can be cytotoxic and genotoxic, demonstrating the need to establish safe concentrations of these extracts for their potential use in cosmetics.
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Affiliation(s)
- Silvia Juliana Flórez González
- Laboratorio de Microbiología y Mutagénesis Ambiental (LMMA), Grupo de Investigación en Microbiología y Genética, Universidad Industrial de Santander, Bucaramanga, Santander, Colombia
| | - Elena E Stashenko
- Centro de Investigación en Biomoléculas (CIBIMOL), Universidad Industrial de Santander, Bucaramanga, Santander, Colombia
- Centro de Cromatografía y Espectrometría de Masas (CROM-MASS), Universidad Industrial de Santander, Bucaramanga, Santander, Colombia
| | - Raquel Elvira Ocazionez
- Centro de Cromatografía y Espectrometría de Masas (CROM-MASS), Universidad Industrial de Santander, Bucaramanga, Santander, Colombia
| | - María Pilar Vinardell
- Departamento de Bioquímica y Fisiología, Facultad de Farmacia y Ciencias de la Alimentación, Universitat de Barcelona, Barcelona 08028, Spain
| | - Jorge Luis Fuentes
- Laboratorio de Microbiología y Mutagénesis Ambiental (LMMA), Grupo de Investigación en Microbiología y Genética, Universidad Industrial de Santander, Bucaramanga, Santander, Colombia
- Centro de Investigación en Biomoléculas (CIBIMOL), Universidad Industrial de Santander, Bucaramanga, Santander, Colombia
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Tagorti G, Yalçın B, Güneş M, Kurşun AY, Kaya B. Genotoxic and genoprotective effects of phytoestrogens: a systematic review. Drug Chem Toxicol 2023; 46:1242-1254. [PMID: 36606318 DOI: 10.1080/01480545.2022.2146134] [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: 06/05/2022] [Revised: 08/17/2022] [Accepted: 09/11/2022] [Indexed: 01/07/2023]
Abstract
Phytoestrogens are xenoestrogens found in plants with a myriad of health benefits. However, various studies reported the genotoxic effects of these substances. Thus, we reviewed in vitro and in vivo studies published in PubMed, Scopus, and Web of Science to evaluate the genotoxic and the genoprotective potential of phytoestrogens. Only studies written in English and intended to study commercially available phytoestrogens were included. The screening was performed manually. Moreover, the underlying mechanism of action of phytoestrogens was described. Around half of those studies (43%) reported genoprotective results. However, several studies revealed positive results for genotoxicity with specific model organisms and with dose/concentration dependence. The assessment of the selected articles showed substantial differences in the used concentrations and a biphasic response was recorded in some phytoestrogens. As far as we know, this is the first study to assess the genotoxic and genoprotective effects of phytoestrogens systematically.
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Affiliation(s)
- Ghada Tagorti
- Department of Biology, Akdeniz University, Antalya, Turkey
| | - Burçin Yalçın
- Department of Biology, Akdeniz University, Antalya, Turkey
| | - Merve Güneş
- Department of Biology, Akdeniz University, Antalya, Turkey
| | | | - Bülent Kaya
- Department of Biology, Akdeniz University, Antalya, Turkey
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Quintero-Rincón P, Mesa-Arango AC, Flórez-Acosta OA, Zapata-Zapata C, Stashenko EE, Pino-Benítez N. Exploring the Potential of Extracts from Sloanea medusula and S. calva: Formulating Two Skincare Gels with Antioxidant, Sun Protective Factor, and Anti- Candida albicans Activities. Pharmaceuticals (Basel) 2023; 16:990. [PMID: 37513902 PMCID: PMC10384365 DOI: 10.3390/ph16070990] [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: 06/11/2023] [Revised: 07/03/2023] [Accepted: 07/07/2023] [Indexed: 07/30/2023] Open
Abstract
Sloanea is a plant genus, native to tropical regions, used in medicinal practices for its anti-inflammatory properties. This study aimed to determine the antioxidant activity, sun protective factor (SPF), and antifungal of extracts obtained from two species of Sloanea and to develop extract-based gels with antioxidants, photoprotective, and anti-Candida albicans effects. Ethanolic extracts from S. medusula and S. calva collected in Chocó, Colombia, were used for antioxidant activity and SPF determination using the DPPH assay and the Mansur equation, respectively. Extracts were characterized using HPLC-MS and used to prepare the gels. The viscosity of the extract-based gels was evaluated using an MCR92 rheometer. In addition, the anti-Candida activity of extracts against five yeasts and anti-C. albicans of gels were evaluated following the Clinical and Laboratory Standards Institute M27, 4th Edition. High DPPH radical scavenging activity (42.4% and 44.7%) and a high SPF value (32.5 and 35.4) were obtained for the extracts of S. medusula and S. calva, respectively. Similarly, extract-based gels showed significant DPPH radical scavenging activity of 54.5% and 53.0% and maximum SPF values of 60 and 57. Extract from S. medusula showed an important antifungal activity against C. albicans (minimal inhibitory concentration (MIC) of 2 µg/mL). In contrast, S. calva extract was active against C. krusei, C. albicans (MIC of 2 µg/mL) and C. tropicalis (MIC of 4 µg/mL). Sloanea medusula gel (0.15%) exhibited an important C. albicans growth inhibition (98%), while with S. calva gel (0.3%) growth inhibition was slightly lower (76%). Polyphenolic and triterpenoid compounds were tentatively identified for S. medusula and S. calva, respectively. Both extracts can be considered promising sources for developing photoprotective gels to treat skin infections caused by C. albicans.
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Affiliation(s)
- Patricia Quintero-Rincón
- Natural Products Group, Technological University of Chocó, Quibdó 270002, Colombia
- Research Group Design and Formulation of Medicines, Cosmetics, and Related, Faculty of Pharmaceutical and Food Sciences, University of Antioquia, Medellín 050010, Colombia
| | - Ana C Mesa-Arango
- Academic Group of Clinical Epidemiology, Faculty of Medicine, University of Antioquia, Medellín 050010, Colombia
| | - Oscar A Flórez-Acosta
- Research Group Design and Formulation of Medicines, Cosmetics, and Related, Faculty of Pharmaceutical and Food Sciences, University of Antioquia, Medellín 050010, Colombia
| | - Carolina Zapata-Zapata
- Academic Group of Clinical Epidemiology, Faculty of Medicine, University of Antioquia, Medellín 050010, Colombia
| | - Elena E Stashenko
- Center for Chromatography and Mass Spectrometry, CROM-MASS, CIBIMOL-CENIVAM, Industrial University of Santander, Bucaramanga 680002, Colombia
| | - Nayive Pino-Benítez
- Natural Products Group, Technological University of Chocó, Quibdó 270002, Colombia
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Yoon JH, Kim MY, Cho JY. Apigenin: A Therapeutic Agent for Treatment of Skin Inflammatory Diseases and Cancer. Int J Mol Sci 2023; 24:ijms24021498. [PMID: 36675015 PMCID: PMC9861958 DOI: 10.3390/ijms24021498] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 01/08/2023] [Accepted: 01/10/2023] [Indexed: 01/13/2023] Open
Abstract
The skin is the main barrier between the body and the environment, protecting it from external oxidative stress induced by ultraviolet rays. It also prevents the entrance of infectious agents such as viruses, external antigens, allergens, and bacteria into our bodies. An overreaction to these agents causes severe skin diseases, including atopic dermatitis, pruritus, psoriasis, skin cancer, and vitiligo. Members of the flavonoid family include apigenin, quercetin, luteolin, and kaempferol. Of these, apigenin has been used as a dietary supplement due to its various biological activities and has been shown to reduce skin inflammation by downregulating various inflammatory markers and molecular targets. In this review, we deal with current knowledge about inflammatory reactions in the skin and the molecular mechanisms by which apigenin reduces skin inflammation.
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Affiliation(s)
- Ji Hye Yoon
- Department of Biocosmetics, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Mi-Yeon Kim
- School of Systems Biomedical Science, Soongsil University, Seoul 06978, Republic of Korea
- Correspondence: (M.-Y.K.); (J.Y.C.); Tel.: +82-2-820-0458 (M.-Y.K.); +82-31-290-7868 (J.Y.C.)
| | - Jae Youl Cho
- Department of Biocosmetics, Sungkyunkwan University, Suwon 16419, Republic of Korea
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon 16419, Republic of Korea
- Correspondence: (M.-Y.K.); (J.Y.C.); Tel.: +82-2-820-0458 (M.-Y.K.); +82-31-290-7868 (J.Y.C.)
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Salem SH, El-Maraghy SS, Abdel-Mallek AY, Abdel-Rahman MAA, Hassanein EHM, Al-Bedak OA, El-Aziz FEZAA. The antimicrobial, antibiofilm, and wound healing properties of ethyl acetate crude extract of an endophytic fungus Paecilomyces sp. (AUMC 15510) in earthworm model. Sci Rep 2022; 12:19239. [PMID: 36357560 PMCID: PMC9649741 DOI: 10.1038/s41598-022-23831-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 11/07/2022] [Indexed: 11/12/2022] Open
Abstract
The endophytic fungus Paecilomyces sp. (AUMC 15510) was isolated from healthy stem samples of the Egyptian medicinal plant Cornulaca monacantha. We used GC-MS and HPLC analysis to identify the bioactive constituents of ethyl acetate crude extract of Paecilomyces sp. (PsEAE). Six human microbial pathogens have been selected to evaluate the antimicrobial activity of PsEAE. Our data showed that the extract has significant antimicrobial activity against all tested pathogens. However, the best inhibitory effect was observed against Bacillus subtilis ATCC 6633 and Pseudomonas aeruginosa ATCC 90274 with a minimum inhibitory concentration (MIC) of 3.9 μg/ml and minimum bactericidal concentration (MBC) of 15.6 μg/ml, for both pathogens. Also, PsEAE exerts a significant inhibition on the biofilm formation of the previously mentioned pathogenic strains. In addition, we evaluated the wound healing efficiency of PsEAE on earthworms (Lumbricus castaneus) as a feasible and plausible model that mimics human skin. Interestingly, PsEAE exhibited a promising wound healing activity and enhanced wound closure. In conclusion, Paecilomyces sp. (AUMC 15510) could be a sustainable source of antimicrobial agents and a potential therapeutic target for wound management.
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Affiliation(s)
- Shimaa H. Salem
- grid.252487.e0000 0000 8632 679XFungal Physiology Laboratory, Botany and Microbiology Department, Faculty of Science, Assiut University, Assiut, Egypt
| | - Saad S. El-Maraghy
- grid.252487.e0000 0000 8632 679XFungal Physiology Laboratory, Botany and Microbiology Department, Faculty of Science, Assiut University, Assiut, Egypt
| | - Ahmed Y. Abdel-Mallek
- grid.252487.e0000 0000 8632 679XMycology Laboratory, Botany and Microbiology Department, Faculty of Science, Assiut University, Assiut, Egypt
| | - Mohamed A. A. Abdel-Rahman
- grid.418376.f0000 0004 1800 7673Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza Egypt
| | - Emad H. M. Hassanein
- grid.411303.40000 0001 2155 6022Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University-Assiut Branch, Assiut, Egypt
| | - Osama A. Al-Bedak
- grid.252487.e0000 0000 8632 679XAssiut University Mycological Centre (AUMC), Assiut University, Assiut, Egypt
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Li Z, Zhou J, Ji L, Liang Y, Xie S. Recent Advances in the Pharmacological Actions of Apigenin, Its Complexes, and Its Derivatives. FOOD REVIEWS INTERNATIONAL 2022. [DOI: 10.1080/87559129.2022.2122989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Zhuoxi Li
- School of Pharmacy, Guangzhou Xinhua University, Guangzhou, P. R. China
| | - Jinfeng Zhou
- School of Pharmacy, Guangzhou Xinhua University, Guangzhou, P. R. China
| | - Lianru Ji
- School of Pharmacy, Guangzhou Xinhua University, Guangzhou, P. R. China
| | - Yingye Liang
- School of Pharmacy, Guangzhou Xinhua University, Guangzhou, P. R. China
| | - Shaoqu Xie
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, China
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Szczepaniak O, Ligaj M, Stuper-Szablewska K, Kobus-Cisowska J. Genoprotective effect of cornelian cherry (Cornus mas L.) phytochemicals, electrochemical and ab initio interaction study. Biomed Pharmacother 2022; 152:113216. [PMID: 35665669 DOI: 10.1016/j.biopha.2022.113216] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 05/24/2022] [Accepted: 05/26/2022] [Indexed: 11/02/2022] Open
Abstract
Cornelian cherry (Cornus mas L.) has broad and multidimensional potential in preventing civilisational diseases. Part of these diseases results from DNA oxidative mutations. Thus, the paper aimed to predict how phenolics present in C. mas may interact with dsDNA in ab initio experiment and to check the effect of different cornelian cherry extracts on DNA structure and DNA oxidation. A special research model was designed using biosensor with a carbonpaste electrode. We resulted in various effects observed for phenolics and the extracts. Flavonoids, but of vitexin interacted with declining energy of the DNA models and liability of DNA oxidation. However, for 8-oxoguaniosine the trend was the opposite. Among the evaluated extracts, water-ethanolic extracts caused decline in adenine and guanine signals after dsDNA exposition on the extract. Principal component analysis showed that alcoholic extracts of cv. Szafer and Słowianin, which were rich in apigenin and kaempferol exhibit mild genoprotective effect.
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Affiliation(s)
- Oskar Szczepaniak
- Department of Gastronomy Sciences and Functional Foods, Poznań University of Life Sciences, Poland.
| | - Marta Ligaj
- Department of Non-Food Products Quality and Packaging Development, Poznań University of Economics and Business, Poland
| | | | - Joanna Kobus-Cisowska
- Department of Gastronomy Sciences and Functional Foods, Poznań University of Life Sciences, Poland
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Antioxidant Activity, Metal Chelating Ability and DNA Protective Effect of the Hydroethanolic Extracts of Crocus sativus Stigmas, Tepals and Leaves. Antioxidants (Basel) 2022; 11:antiox11050932. [PMID: 35624796 PMCID: PMC9137568 DOI: 10.3390/antiox11050932] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/06/2022] [Accepted: 05/06/2022] [Indexed: 02/04/2023] Open
Abstract
The present study investigated the antioxidant activity, metal chelating ability and genoprotective effect of the hydroethanolic extracts of Crocus sativus stigmas (STG), tepals (TPL) and leaves (LV). We evaluated the antioxidant and metal (Fe2+ and Cu2+) chelating activities of the stigmas, tepals and leaves of C. sativus. Similarly, we examined the genotoxic and DNA protective effect of these parts on rat leukocytes by comet assay. The results showed that TPL contains the best polyphenol content (64.66 µg GA eq/mg extract). The highest radical scavenging activity is shown by the TPL (DPPH radical scavenging activity: IC50 = 80.73 µg/mL). The same extracts gave a better ferric reducing power at a dose of 50 µg/mL, and better protective activity against β-carotene degradation (39.31% of oxidized β-carotene at a 100 µg/mL dose). In addition, they showed a good chelating ability of Fe2+ (48.7% at a 500 µg/mL dose) and Cu2+ (85.02% at a dose of 500 µg/mL). Thus, the antioxidant activity and metal chelating ability in the C. sativus plant is important, and it varies according to the part and dose used. In addition, pretreatment with STG, TPL and LV significantly (p < 0.001) protected rat leukocytes against the elevation of percent DNA in the tail, tail length and tail moment in streptozotocin- and alloxan-induced DNA damage. These results suggest that C. sativus by-products contain natural antioxidant, metal chelating and DNA protective compounds, which are capable of reducing the risk of cancer and other diseases associated with daily exposure to genotoxic xenobiotics.
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Yadav B, Vishwakarma V, Kumar S, Aggarwal NK, Gupta R, Yadav A. Ameliorative role of naringenin against lead-induced genetic damage and oxidative stress in cultured human lymphocytes. J Biochem Mol Toxicol 2022; 36:e23036. [PMID: 35289026 DOI: 10.1002/jbt.23036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 01/17/2022] [Accepted: 03/02/2022] [Indexed: 12/23/2022]
Abstract
Lead (Pb) is a ubiquitous toxic heavy metal that is known to induce damage to major macromolecules (lipids, proteins, and nucleic acids) by enhancing the level of reactive oxygen species (ROS). Naringenin, a predominant flavonoid primarily found in citrus fruits has attained increasing attention due to its various pharmacological properties. Thus, the present investigation aimed to explore the ameliorative role of naringenin against Pb-induced toxicity in human peripheral blood lymphocytes (PBLs) under in vitro conditions. For this purpose, PBLs were exposed to Pb (350 µg/ml) alone as well in combination with naringenin (10 and 30 µg/ml). Sister chromatid exchange (SCE) and alkaline comet assay were used as genotoxic indices to evaluate the genotoxic and antigenotoxic activity of Pb and naringenin, respectively. Lipid peroxidation (LPO), glutathione peroxidase (GPx), catalase (CAT), superoxide dismutase (SOD), and reduced glutathione (GSH) assays were used as oxidative damage markers. The results revealed that Pb induced a significant (p < 0.05) increase in genetic and oxidative damage as compared with the untreated sample whereas the treatment of cells along with naringenin (10 and 30 µg/ml) and Pb (350 µg/ml) caused a significant reduction in genetic damage and elevation in SOD, GPx, and CAT activities and GSH level, accompanied by a significant reduction in LPO level as compared with Pb alone treated sample. So, the present investigation revealed that naringenin might be used as a protective agent against Pb-induced toxicity due to its antigenotoxic and antioxidative properties.
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Affiliation(s)
- Bharti Yadav
- Department of Biotechnology, Kurukshetra University, Kurukshetra, Haryana, India
| | - Veena Vishwakarma
- Department of Biotechnology, Kurukshetra University, Kurukshetra, Haryana, India
| | - Sunil Kumar
- Department of Biotechnology, Kurukshetra University, Kurukshetra, Haryana, India
| | - Neeraj K Aggarwal
- Department of Microbiology, Kurukshetra University, Kurukshetra, Haryana, India
| | - Ranjan Gupta
- Department of Biochemistry, Kurukshetra University, Kurukshetra, Haryana, India
| | - Anita Yadav
- Department of Biotechnology, Kurukshetra University, Kurukshetra, Haryana, India
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Torres-Contreras AM, Garcia-Baeza A, Vidal-Limon HR, Balderas-Renteria I, Ramírez-Cabrera MA, Ramirez-Estrada K. Plant Secondary Metabolites against Skin Photodamage: Mexican Plants, a Potential Source of UV-Radiation Protectant Molecules. PLANTS (BASEL, SWITZERLAND) 2022; 11:220. [PMID: 35050108 PMCID: PMC8779981 DOI: 10.3390/plants11020220] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 01/07/2022] [Accepted: 01/12/2022] [Indexed: 06/14/2023]
Abstract
Human skin works as a barrier against the adverse effects of environmental agents, including ultraviolet radiation (UVR). Exposure to UVR is associated with a variety of harmful effects on the skin, and it is one of the most common health concerns. Solar UVR constitutes the major etiological factor in the development of cutaneous malignancy. However, more than 90% of skin cancer cases could be avoided with appropriate preventive measures such as regular sunscreen use. Plants, constantly irradiated by sunlight, are able to synthesize specialized molecules to fight against UVR damage. Phenolic compounds, alkaloids and carotenoids constitute the major plant secondary metabolism compounds with relevant UVR protection activities. Hence, plants are an important source of molecules used to avoid UVR damage, reduce photoaging and prevent skin cancers and related illnesses. Due to its significance, we reviewed the main plant secondary metabolites related to UVR protection and its reported mechanisms. In addition, we summarized the research in Mexican plants related to UV protection. We presented the most studied Mexican plants and the photoprotective molecules found in them. Additionally, we analyzed the studies conducted to elucidate the mechanism of photoprotection of those molecules and their potential use as ingredients in sunscreen formulas.
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Affiliation(s)
- Ana Mariel Torres-Contreras
- Laboratory of Cell Metabolism, Faculty of Chemistry, Autonomous University of Nuevo León, Pedro de Alba s/n, Ciudad Universitaria, San Nicolás de los Garza 66451, Mexico; (A.M.T.-C.); (A.G.-B.); (I.B.-R.)
| | - Antoni Garcia-Baeza
- Laboratory of Cell Metabolism, Faculty of Chemistry, Autonomous University of Nuevo León, Pedro de Alba s/n, Ciudad Universitaria, San Nicolás de los Garza 66451, Mexico; (A.M.T.-C.); (A.G.-B.); (I.B.-R.)
| | - Heriberto Rafael Vidal-Limon
- Centro de Biotecnología FEMSA, Instituto Tecnológico de Monterrey, Avenida Junco de la Vega, Col. Tecnológico, Montrerrey 65849, Mexico;
| | - Isaias Balderas-Renteria
- Laboratory of Cell Metabolism, Faculty of Chemistry, Autonomous University of Nuevo León, Pedro de Alba s/n, Ciudad Universitaria, San Nicolás de los Garza 66451, Mexico; (A.M.T.-C.); (A.G.-B.); (I.B.-R.)
| | - Mónica A. Ramírez-Cabrera
- Laboratorio de Farmacología Molecular y Modelos Biológicos, División de Estudios de Posgrado, Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, Av. Guerrero s/n, Col. Treviño, Monterrey 64570, Mexico;
| | - Karla Ramirez-Estrada
- Laboratory of Cell Metabolism, Faculty of Chemistry, Autonomous University of Nuevo León, Pedro de Alba s/n, Ciudad Universitaria, San Nicolás de los Garza 66451, Mexico; (A.M.T.-C.); (A.G.-B.); (I.B.-R.)
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Ferreyra MLF, Serra P, Casati P. Recent advances on the roles of flavonoids as plant protective molecules after UV and high light exposure. PHYSIOLOGIA PLANTARUM 2021; 173:736-749. [PMID: 34453749 DOI: 10.1111/ppl.13543] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 08/16/2021] [Accepted: 08/25/2021] [Indexed: 05/25/2023]
Abstract
Flavonoids are plant specialized metabolites that consist of one oxygenated and two aromatic rings. Different flavonoids are grouped according to the oxidation degree of the carbon rings; they can later be modified by glycosylations, hydroxylations, acylations, methylations, or prenylations. These modifications generate a wide collection of different molecules which have various functions in plants. All flavonoids absorb in the UV wavelengths, they mostly accumulate in the epidermis of plant cells and their biosynthesis is generally activated after UV exposure. Therefore, they have been assumed to protect plants against exposure to radiation in this range. Some flavonoids also absorb in other wavelengths, for example anthocyanins, which absorb light in the visible part of the solar spectrum. Besides, some flavonoids show antioxidant properties, that is, they act as scavengers of reactive oxygen species that could be produced after high fluence UV exposure. However, to date most reports were based on in vitro studies, and there is very little in vivo evidence of how their roles are carried out. In this review we first summarize the biosynthetic pathway of flavonoids and their characteristics, and we describe recent advances on the investigation of the role of three of the most abundant flavonoids: flavonols, flavones, and anthocyanins, protecting plants against UV exposure and high light exposure. We also present examples of how using UV-B supplementation to increase flavonoid content, is possible to improve plant nutritional and pharmaceutical values.
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Affiliation(s)
- María Lorena Falcone Ferreyra
- Centro de Estudios Fotosintéticos y Bioquímicos (CEFOBI), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Rosario, Argentina
| | - Paloma Serra
- Centro de Estudios Fotosintéticos y Bioquímicos (CEFOBI), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Rosario, Argentina
| | - Paula Casati
- Centro de Estudios Fotosintéticos y Bioquímicos (CEFOBI), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Rosario, Argentina
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Fuentes JL, Villamizar Mantilla DA, Flores González SJ, Núñez LA, Stashenko EE. Plants growing in Colombia as sources of active ingredients for sunscreens. Int J Radiat Biol 2021; 97:1705-1715. [PMID: 34586950 DOI: 10.1080/09553002.2021.1987564] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
INTRODUCTION Plants can be sources of photoprotective/antigenotoxic compounds that prevent cellular mutations involved in skin cancer and aging by regulating UV-induced mutability. PURPOSE The study was aimed at investigating the sunscreen properties of plants growing in Colombia. MATERIALS AND METHODS Ultraviolet (UV) radiation-absorption capability of different plant extracts was examined. In vitro photoprotection efficacies were evaluated using in vitro indices such as sun protection factor (SPFin vitro) and critical wavelength (λc). Pearson correlation analysis was used to examine the relationship between SPFin vitro and complementary UVB- antigenotoxicity estimates (%GI) based on the SOS Chromotest database. The cytotoxicity in human fibroblasts was studied using the trypan blue exclusion assay. Major compounds of promising plant extracts were determined by gas chromatography coupled to mass spectrometry (GC/MS). RESULTS We showed that plant extracts have sunscreen properties against UVB, whereas broad-spectrum radiation protection efficacy was poor. SPFin vitro and %GI were correlated (R = 0.71, p < .0001) for the plant extracts under study. Three extracts obtained from Achyrocline satureioides, Chromolaena pellia, and Lippia origanoides species resulted to possess high protection efficacy and relatively low cytotoxicity in human fibroblasts. These plant extracts contained major compounds such as α-pinene, trans-β-caryophyllene, γ-muurolene, γ-cadinene and caryophyllene oxide in A. Satureioides extract, trans-β-caryophyllene, caryophyllene oxide, squalene and α-amyrin in C. pellia extract, and p-cymene, carvacrol, trans-β-caryophyllene and pinocembrin in L. origanoides extract. CONCLUSIONS Plants growing in Colombia contain compounds that can be useful for potential sunscreens. SPFin vitro and %GI estimates were correlated, but %GI estimates were more sensitive to detecting activity at lower plant extract concentrations. Our results supported the need to use DNA damage detection assays as a complement to photoprotection efficacy measurement.
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Affiliation(s)
- Jorge Luis Fuentes
- Laboratorio de Microbiología y Mutagénesis Ambiental, Grupo de Investigación en Microbiología y Genética, Escuela de Biología, Facultad de Ciencias, Universidad Industrial de Santander, Bucaramanga, Colombia.,Centro de Investigación en Biomoléculas, CIBIMOL, Universidad Industrial de Santander, Bucaramanga, Colombia
| | - Diego Armando Villamizar Mantilla
- Laboratorio de Microbiología y Mutagénesis Ambiental, Grupo de Investigación en Microbiología y Genética, Escuela de Biología, Facultad de Ciencias, Universidad Industrial de Santander, Bucaramanga, Colombia
| | - Silvia Juliana Flores González
- Laboratorio de Microbiología y Mutagénesis Ambiental, Grupo de Investigación en Microbiología y Genética, Escuela de Biología, Facultad de Ciencias, Universidad Industrial de Santander, Bucaramanga, Colombia
| | - Luis Alberto Núñez
- Escuela de Física, Facultad de Ciencias, Universidad Industrial de Santander, Bucaramanga, Colombia
| | - Elena E Stashenko
- Centro de Investigación en Biomoléculas, CIBIMOL, Universidad Industrial de Santander, Bucaramanga, Colombia
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Zheng X, Feng M, Wan J, Shi Y, Xie X, Pan W, Hu B, Wang Y, Wen H, Wang K, Cai S. Anti-damage effect of theaflavin-3'-gallate from black tea on UVB-irradiated HaCaT cells by photoprotection and maintaining cell homeostasis. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2021; 224:112304. [PMID: 34536907 DOI: 10.1016/j.jphotobiol.2021.112304] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 08/11/2021] [Accepted: 09/09/2021] [Indexed: 12/24/2022]
Abstract
Keratinocytes are rich in lipids and are the main sensitive cells to ultraviolet (UV) rays. Theaflavins are the core functional components of black tea and are known as the "soft gold" in tea. In this study, ultraviolet-B (UVB) irradiation caused apoptosis and necrosis of human epidermal keratinocytes (HaCaT). EGCG and the four theaflavins had anti-UVB damage activity, among which theaflavin-3'-gallate (TF3'G) had the best activity. The results of biophysical and molecular biology experiments showed that TF3'G has anti-damage effects on UVB-irradiated HaCaT cells through the dual effects of photoprotection and maintenance of cell homeostasis. That is, TF3'G preincubation could absorb UV rays, reduce the accumulation of aging-related heterochromatin (SAHF) formation, increase mitochondrial membrane potential, downregulate NF-κB inflammation pathways, inhibit the formation of cytotoxic aggregates, and protect biological macromolecules Structure, etc. The accumulation of conjugated π bonds and the balance benzoquinone are the core functional structure of TF3'G with high efficiency and low toxicity. The study indicates that TF3'G has the potential to inhibit the photoaging and intrinsic aging of skin cells.
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Affiliation(s)
- Xin Zheng
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China; Key Laboratory of Ministry of Education for Tea Science, Hunan Agricultural University, Changsha 410128, China; Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China
| | - Meiyan Feng
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China; Key Laboratory of Ministry of Education for Tea Science, Hunan Agricultural University, Changsha 410128, China; Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China
| | - Juan Wan
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China; Key Laboratory of Ministry of Education for Tea Science, Hunan Agricultural University, Changsha 410128, China; Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China
| | - Yulan Shi
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China; Key Laboratory of Ministry of Education for Tea Science, Hunan Agricultural University, Changsha 410128, China; Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China
| | - Xinya Xie
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China; Key Laboratory of Ministry of Education for Tea Science, Hunan Agricultural University, Changsha 410128, China; Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China
| | - Wenjing Pan
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China; Key Laboratory of Ministry of Education for Tea Science, Hunan Agricultural University, Changsha 410128, China; Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China
| | - Baozhu Hu
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China; Key Laboratory of Ministry of Education for Tea Science, Hunan Agricultural University, Changsha 410128, China; Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China
| | - Yingzi Wang
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China; Key Laboratory of Ministry of Education for Tea Science, Hunan Agricultural University, Changsha 410128, China; Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China
| | - Haitao Wen
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China; Key Laboratory of Ministry of Education for Tea Science, Hunan Agricultural University, Changsha 410128, China; Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China
| | - Kunbo Wang
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China; Key Laboratory of Ministry of Education for Tea Science, Hunan Agricultural University, Changsha 410128, China; Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China.
| | - Shuxian Cai
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China; Key Laboratory of Ministry of Education for Tea Science, Hunan Agricultural University, Changsha 410128, China; Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410128, China.
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Ghaffari T, Hong JH, Asnaashari S, Farajnia S, Delazar A, Hamishehkar H, Kim KH. Natural Phytochemicals Derived from Gymnosperms in the Prevention and Treatment of Cancers. Int J Mol Sci 2021; 22:6636. [PMID: 34205739 PMCID: PMC8234227 DOI: 10.3390/ijms22126636] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/16/2021] [Accepted: 06/17/2021] [Indexed: 12/12/2022] Open
Abstract
The incidence of various types of cancer is increasing globally. To reduce the critical side effects of cancer chemotherapy, naturally derived compounds have been considered for cancer treatment. Gymnosperms are a group of plants found worldwide that have traditionally been used for therapeutic applications. Paclitaxel is a commercially available anticancer drug derived from gymnosperms. Other natural compounds with anticancer activities, such as pinostrobin and pinocembrin, are extracted from pine heartwood, and pycnogenol and enzogenol from pine bark. Gymnosperms have great potential for further study for the discovery of new anticancer compounds. This review aims to provide a rational understanding and the latest developments in potential anticancer compounds derived from gymnosperms.
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Affiliation(s)
- Tayyebeh Ghaffari
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz 15731, Iran; (T.G.); (S.F.)
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz 15731, Iran
| | - Joo-Hyun Hong
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea;
| | - Solmaz Asnaashari
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz 15731, Iran;
| | - Safar Farajnia
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz 15731, Iran; (T.G.); (S.F.)
| | - Abbas Delazar
- Research Center for Evidence based Medicine, Tabriz University of Medical Sciences, Tabriz 15731, Iran;
| | - Hamed Hamishehkar
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz 15731, Iran; (T.G.); (S.F.)
| | - Ki-Hyun Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea;
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Lassoued MA, Ben Fatma NEH, Haj Romdhane M, Faidi A, Majdoub H, Sfar S. Photoprotective potential of a Tunisian halophyte plant Carpobrotus edulis L. Eur J Integr Med 2021. [DOI: 10.1016/j.eujim.2021.101286] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Soberón JR, Sgariglia MA, Carabajal Torrez JA, Aguilar FA, Pero EJ, Sampietro DA, Fernández de Luco J, Labadie GR. Antifungal activity and toxicity studies of flavanones isolated from Tessaria dodoneifolia aerial parts. Heliyon 2020; 6:e05174. [PMID: 33083621 PMCID: PMC7551329 DOI: 10.1016/j.heliyon.2020.e05174] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 12/04/2019] [Accepted: 10/02/2020] [Indexed: 11/22/2022] Open
Abstract
Tessaria dodoneifolia [Asteraceae] is traditionally employed in Northwestern Argentina for fungal infections treatment. We report the antifungal activity guided isolation and identification of substances from aerial parts of this species, both individually and in combination with fluconazole (FLU), against Candida albicans strains. Two antifungal flavanones were identified as naringenin (NAR) and pinocembrin (PIN). These compounds could individually inhibit the growth of C. albicans strains. Combinations of NAR and PIN with FLU were synergistic against the FLU resistant and sensitive C. albicans strains. Genotoxic and cytotoxic evaluations were also performed. NAR, PIN and their combinations with FLU did not have a genotoxic effect on Bacillus subtilis rec strains. Finally, these compounds did not show cytotoxicity at concentrations below 80 μg/mL.
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Affiliation(s)
- José R. Soberón
- Cátedra de Fitoquímica, Instituto de Estudios Farmacológicos “Dr. A.R. Sampietro”, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471 T4000INI San Miguel de Tucumán; Tucumán; Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
- Corresponding author.
| | - Melina A. Sgariglia
- Cátedra de Fitoquímica, Instituto de Estudios Farmacológicos “Dr. A.R. Sampietro”, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471 T4000INI San Miguel de Tucumán; Tucumán; Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - José A. Carabajal Torrez
- Cátedra de Fitoquímica, Instituto de Estudios Farmacológicos “Dr. A.R. Sampietro”, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471 T4000INI San Miguel de Tucumán; Tucumán; Argentina
| | - Franco A. Aguilar
- Cátedra de Fitoquímica, Instituto de Estudios Farmacológicos “Dr. A.R. Sampietro”, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471 T4000INI San Miguel de Tucumán; Tucumán; Argentina
| | - Edgardo J.I. Pero
- Instituto de Biodiversidad Neotropical (IBN), CONICET, Universidad Nacional de Tucumán, Facultad de Ciencias Naturales e Instituto Miguel Lillo, Horco Molle s/n, Ciudad Universitaria, Yerba Buena, Tucumán, Argentina
| | - Diego A. Sampietro
- Cátedra de Fitoquímica, Instituto de Estudios Farmacológicos “Dr. A.R. Sampietro”, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471 T4000INI San Miguel de Tucumán; Tucumán; Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | | | - Guillermo R. Labadie
- Instituto de Química Rosario, UNR, CONICET, Suipacha 531, S2002LRK, Rosario, Argentina
- Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, S2002LRK, Rosario, Argentina
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Prasanth MI, Gayathri S, Bhaskar JP, Krishnan V, Balamurugan K. Analyzing the Synergistic Effects of Antioxidants in Combating Photoaging Using Model Nematode, Caenorhabditis elegans. Photochem Photobiol 2019; 96:139-147. [PMID: 31556119 DOI: 10.1111/php.13167] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 09/12/2019] [Indexed: 12/13/2022]
Abstract
Aging, a universal and unique process, occurs both intrinsically (chronological) and extrinsically (photoaging). Ultraviolet-A (UV-A)-mediated stress is a growing health hazard to mankind as it is the major cause of photoaging, which could lead to much damage of skin cells and tissues ranging from tan, burn, or even cancer. The present study focuses on the role of antioxidants and other natural compounds which have been widely used in oral/topical applications to combat and delay the effects of photoaging using model nematode Caenorhabditis elegans. Compounds like green tea extract, naringenin, and naringin, which are known for their antioxidant properties, were able to extend life span and healthspan of the nematode in normal as well as under UV-A-mediated stress conditions. Regulation of both the stress-responsive genes (skn-1 and sir-2.1) and the aging-regulating genes (daf-2 and age-1) was attributable for these conditions. Interestingly, it was observed that these compounds when combined in equal ratios by weight worked synergistically to combat the aging process. Pronounced synergistic effects were observed during UV-A-mediated stress conditions, suggesting that these could be used as potential antiphotoaging compounds which will be of greater significance for health-based research.
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Affiliation(s)
- Mani Iyer Prasanth
- Department of Biotechnology, Science Campus, Alagappa University, Karaikudi, Tamil Nadu, India
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