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Hegde AR, Kunder MU, Narayanaswamy M, Murugesan S, Furtado SC, Veerabhadraiah BB, Srinivasan B. Advancements in sunscreen formulations: integrating polyphenolic nanocarriers and nanotechnology for enhanced UV protection. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:38061-38082. [PMID: 38806984 DOI: 10.1007/s11356-024-33712-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 05/12/2024] [Indexed: 05/30/2024]
Abstract
Sunscreens are essential in protecting the skin from harmful effects of ultraviolet radiation (UVR). These formulations, designed to absorb, block, or scatter UVR, offer vital protection against skin aging, sunburns, and the development of skin cancers like melanomas. However, some sunscreens, especially those containing organic/chemical compounds, can cause allergic reactions. To address this, researchers are extensively investigating formulations that incorporate plant extracts rich in polyphenols, such as flavonoids and carotenoids, which can be considered safer alternatives. Products derived from plants are commonly used in cosmetics to counteract skin aging due to their antioxidant activity that combat harmful free radicals. This review focuses on evaluating the advancements in chemical and natural sunscreens, exploring the integration of polyphenolic nanocarriers within sunscreen formulas, their interaction with UVR, and utilizing nanotechnology to enhance their effectiveness. An attempt has been made to highlight the concerns related to toxicity associated with their use and notable advancements in the regulatory aspects governing their utilization.
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Affiliation(s)
- Aswathi Raju Hegde
- Department of Pharmaceutics, Faculty of Pharmacy, M.S. Ramaiah University of Applied Sciences, Gnanagangothri Campus, New B.E.L. Road, M.S.R. Nagar, M.S.R.I.T Post, Bengaluru, 560054, Karnataka, India.
| | - Manisha Uday Kunder
- Department of Pharmaceutics, Faculty of Pharmacy, M.S. Ramaiah University of Applied Sciences, Gnanagangothri Campus, New B.E.L. Road, M.S.R. Nagar, M.S.R.I.T Post, Bengaluru, 560054, Karnataka, India
| | - Megha Narayanaswamy
- Department of Pharmaceutics, Faculty of Pharmacy, M.S. Ramaiah University of Applied Sciences, Gnanagangothri Campus, New B.E.L. Road, M.S.R. Nagar, M.S.R.I.T Post, Bengaluru, 560054, Karnataka, India
| | - Shruthi Murugesan
- Department of Pharmaceutics, Faculty of Pharmacy, M.S. Ramaiah University of Applied Sciences, Gnanagangothri Campus, New B.E.L. Road, M.S.R. Nagar, M.S.R.I.T Post, Bengaluru, 560054, Karnataka, India
| | - Sharon Caroline Furtado
- Department of Pharmaceutics, Faculty of Pharmacy, M.S. Ramaiah University of Applied Sciences, Gnanagangothri Campus, New B.E.L. Road, M.S.R. Nagar, M.S.R.I.T Post, Bengaluru, 560054, Karnataka, India
| | - Basavaraj Basappa Veerabhadraiah
- Department of Pharmaceutics, Faculty of Pharmacy, M.S. Ramaiah University of Applied Sciences, Gnanagangothri Campus, New B.E.L. Road, M.S.R. Nagar, M.S.R.I.T Post, Bengaluru, 560054, Karnataka, India
| | - Bharath Srinivasan
- Department of Pharmaceutics, Faculty of Pharmacy, M.S. Ramaiah University of Applied Sciences, Gnanagangothri Campus, New B.E.L. Road, M.S.R. Nagar, M.S.R.I.T Post, Bengaluru, 560054, Karnataka, India
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Hooda P, Malik R, Bhatia S, Al-Harrasi A, Najmi A, Zoghebi K, Halawi MA, Makeen HA, Mohan S. Phytoimmunomodulators: A review of natural modulators for complex immune system. Heliyon 2024; 10:e23790. [PMID: 38205318 PMCID: PMC10777011 DOI: 10.1016/j.heliyon.2023.e23790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 12/12/2023] [Accepted: 12/13/2023] [Indexed: 01/12/2024] Open
Abstract
In the past few decades, the medicinal properties of plants and their effects on the human immune system are being studied extensively. Plants are an incredible source of traditional medicines that help cure various diseases, including altered immune mechanisms and are economical and benign compared to allopathic medicines. Reported data in written documents such as Traditional Chinese medicine, Indian Ayurvedic medicine support the supplementation of botanicals for immune defense reactions in the body and can lead to safe and effective immunity responses. Additionally, some botanicals are well-identified as magical herbal remedies because they act upon the pathogen directly and help boost the immunity of the host. Chemical compounds, also known as phytochemicals, obtained from these botanicals looked promising due to their effects on the human immune system by modulating the lymphocytes which subsequently reduce the chances of getting infected. This paper summarises most documented phytochemicals and how they act on the immune system, their properties and possible mechanisms, screening conventions, formulation guidelines, comparison with synthetic immunity-enhancers, marketed immunity-boosting products, and immune-booster role in the ongoing ghastly corona virus wave. However, it focuses mainly on plant metabolites as immunomodulators. In addition, it also sheds light on the current advancements and future possibilities in this field. From this thorough study, it can be stated that the plant-based secondary metabolites contribute significantly to immunity building and could prove to be valuable medicaments for the design and development of novel immunomodulators even for a pandemic like COVID-19.
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Affiliation(s)
- Partibha Hooda
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak, Haryana, India
| | - Rohit Malik
- Gurugram Global College of Pharmacy, Gurugram, India
- SRM Modi Nagar College of Pharmacy, SRMIST, Delhi-NCR Campus, Ghaziabad, India
| | - Saurabh Bhatia
- School of Health Science, University of Petroleum and Energy Studies, Dehradun, Uttarakhand, India
- Natural & Medical Sciences Research Centre, University of Nizwa, Birkat Al Mauz, Oman
| | - Ahmed Al-Harrasi
- Natural & Medical Sciences Research Centre, University of Nizwa, Birkat Al Mauz, Oman
| | - Asim Najmi
- Department of Pharmaceutical Chemistry and Pharmacognosy, College of Pharmacy, Jazan University, P.O. Box 114, Jazan, Saudi Arabia
| | - Khalid Zoghebi
- Department of Pharmaceutical Chemistry and Pharmacognosy, College of Pharmacy, Jazan University, P.O. Box 114, Jazan, Saudi Arabia
| | - Maryam A. Halawi
- Department of Clinical pharmacy, College of Pharmacy, Jazan University, P.O. Box 114, Jazan, Saudi Arabia
| | - Hafiz A. Makeen
- Department of Clinical pharmacy, College of Pharmacy, Jazan University, P.O. Box 114, Jazan, Saudi Arabia
| | - Syam Mohan
- Substance Abuse and Toxicology Research Centre, Jazan University, Jazan, Saudi Arabia
- Center for Global health Research, Saveetha Medical College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, India
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Rakoczy K, Kaczor J, Sołtyk A, Szymańska N, Stecko J, Sleziak J, Kulbacka J, Baczyńska D. Application of Luteolin in Neoplasms and Nonneoplastic Diseases. Int J Mol Sci 2023; 24:15995. [PMID: 37958980 PMCID: PMC10650338 DOI: 10.3390/ijms242115995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 10/31/2023] [Accepted: 11/04/2023] [Indexed: 11/15/2023] Open
Abstract
Researchers are amazed at the multitude of biological effects of 3',4',5,7-tetrahydroxyflavone, more commonly known as luteolin, as it simultaneously has antioxidant and pro-oxidant, as well as antimicrobial, anti-inflammatory, and cancer-preventive, properties. The anticancer properties of luteolin constitute a mosaic of pathways due to which this flavonoid influences cancer cells. Not only is it able to induce apoptosis and inhibit cancer cell proliferation, but it also suppresses angiogenesis and metastasis. Moreover, luteolin succeeds in cancer cell sensitization to therapeutically induced cytotoxicity. Nevertheless, apart from its promising role in chemoprevention, luteolin exhibits numerous potential utilizations in patients with conditions other than neoplasms, which include inflammatory skin diseases, diabetes mellitus, and COVID-19. This review aims to present the multidimensionality of the luteolin's impact on both neoplastic and nonneoplastic diseases. When it comes to neoplasms, we intend to describe the complexity of the molecular mechanisms that underlay luteolin's anticancer effectiveness, as well as to prove the usefulness of integrating this flavonoid in cancer therapy via the analysis of recent research on breast, colon, and lung cancer. Regarding nonneoplastic diseases, this review aims to emphasize the importance of researching the potential of luteolin in areas such as diabetology, virology, and dermatology as it summarizes the most important discoveries in those fields regarding its application.
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Affiliation(s)
- Katarzyna Rakoczy
- Faculty of Medicine, Wroclaw Medical University, 50-367 Wroclaw, Poland; (K.R.); (J.K.); (A.S.); (N.S.); (J.S.); (J.S.)
| | - Justyna Kaczor
- Faculty of Medicine, Wroclaw Medical University, 50-367 Wroclaw, Poland; (K.R.); (J.K.); (A.S.); (N.S.); (J.S.); (J.S.)
| | - Adam Sołtyk
- Faculty of Medicine, Wroclaw Medical University, 50-367 Wroclaw, Poland; (K.R.); (J.K.); (A.S.); (N.S.); (J.S.); (J.S.)
| | - Natalia Szymańska
- Faculty of Medicine, Wroclaw Medical University, 50-367 Wroclaw, Poland; (K.R.); (J.K.); (A.S.); (N.S.); (J.S.); (J.S.)
| | - Jakub Stecko
- Faculty of Medicine, Wroclaw Medical University, 50-367 Wroclaw, Poland; (K.R.); (J.K.); (A.S.); (N.S.); (J.S.); (J.S.)
| | - Jakub Sleziak
- Faculty of Medicine, Wroclaw Medical University, 50-367 Wroclaw, Poland; (K.R.); (J.K.); (A.S.); (N.S.); (J.S.); (J.S.)
| | - Julita Kulbacka
- Department of Molecular and Cellular Biology, Faculty of Pharmacy, Wroclaw Medical University, 50-556 Wroclaw, Poland
- Department of Immunology, State Research Institute Centre for Innovative Medicine, Santariškių 5, 08410 Vilnius, Lithuania
| | - Dagmara Baczyńska
- Department of Molecular and Cellular Biology, Faculty of Pharmacy, Wroclaw Medical University, 50-556 Wroclaw, Poland
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Pourova J, Dias P, Pour M, Bittner Fialová S, Czigle S, Nagy M, Tóth J, Balázs VL, Horváth A, Csikós E, Farkas Á, Horváth G, Mladěnka P. Proposed mechanisms of action of herbal drugs and their biologically active constituents in the treatment of coughs: an overview. PeerJ 2023; 11:e16096. [PMID: 37901462 PMCID: PMC10607228 DOI: 10.7717/peerj.16096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 08/24/2023] [Indexed: 10/31/2023] Open
Abstract
Various medicinal plants find their use in cough treatment, based on traditions and long-term experience. Pharmacological principles of their action, however, are much less known. Herbal drugs usually contain a mixture of potentially active compounds, which can manifest diverse effects. Expectorant or antitussive effects, which can be accompanied by others, such as anti-inflammatory or antibacterial, are probably the most important in the treatment of coughs. The aim of this review is to summarize the current state of knowledge of the effects of medicinal plants or their constituents on cough, based on reliable pharmacological studies. First, a comprehensive description of each effect is provided in order to explain the possible mechanism of action in detail. Next, the results related to individual plants and substances are summarized and critically discussed based on pharmacological in vivo and in vitro investigation.
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Affiliation(s)
- Jana Pourova
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Charles University Prague, Hradec Králové, Czech Republic
| | - Patricia Dias
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Charles University Prague, Hradec Králové, Czech Republic
| | - Milan Pour
- Department of Organic and Bioorganic Chemistry, Faculty of Pharmacy, Charles University Prague, Hradec Králové, Czech Republic
| | - Silvia Bittner Fialová
- Department of Pharmacognosy and Botany, Faculty of Pharmacy, Comenius University Bratislava, Bratislava, Slovak Republic
| | - Szilvia Czigle
- Department of Pharmacognosy and Botany, Faculty of Pharmacy, Comenius University Bratislava, Bratislava, Slovak Republic
| | - Milan Nagy
- Department of Pharmacognosy and Botany, Faculty of Pharmacy, Comenius University Bratislava, Bratislava, Slovak Republic
| | - Jaroslav Tóth
- Department of Pharmacognosy and Botany, Faculty of Pharmacy, Comenius University Bratislava, Bratislava, Slovak Republic
| | | | - Adrienn Horváth
- Department of Pharmaceutical Biology, Faculty of Pharmacy, University of Pécs, Pécs, Hungary
| | - Eszter Csikós
- Department of Pharmacognosy, Faculty of Pharmacy, University of Pécs, Pécs, Hungary
| | - Ágnes Farkas
- Department of Pharmacognosy, Faculty of Pharmacy, University of Pécs, Pécs, Hungary
| | - Györgyi Horváth
- Department of Pharmacognosy, Faculty of Pharmacy, University of Pécs, Pécs, Hungary
| | - Přemysl Mladěnka
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Charles University Prague, Hradec Králové, Czech Republic
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Physiological Effects of Green-Colored Food-Derived Bioactive Compounds on Cardiovascular and Metabolic Diseases. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12041879] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Cardiovascular and metabolic diseases are a leading cause of death worldwide. Epidemiological studies strongly highlight various benefits of consuming colorful fruits and vegetables in everyday life. In this review, we aimed to revisit previous studies conducted in the last few decades regarding green-colored foods and their bioactive compounds in consideration of treating and/or preventing cardiovascular and metabolic diseases. This review draws a comprehensive summary and assessment of research on the physiological effects of various bioactive compounds, mainly polyphenols, derived from green-colored fruits and vegetables. In particular, their health-beneficial effects, including antioxidant, anti-inflammatory, anti-diabetic, anti-obesity, cardioprotective, and lipid-lowering properties, will be discussed. Furthermore, the bioavailability and significance of action of these bioactive compounds on cardiovascular and metabolic diseases will be discussed in detail.
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6
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Extraordinary composition of Actinidia arguta by-products as skin ingredients: A new challenge for cosmetic and medical skincare industries. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.08.031] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Wang X, Cao Y, Chen S, Lin J, Bian J, Huang D. Anti-Inflammation Activity of Flavones and Their Structure-Activity Relationship. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:7285-7302. [PMID: 34160206 DOI: 10.1021/acs.jafc.1c02015] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Flavones are an important class of bioactive constituents in foods, and their structural diversity enables them to interact with different targets. In particular, flavones are known for their anti-inflammatory activity. Herein, we summarized commonly applied in vitro, in vivo, and clinical models in testing anti-inflammatory activity of flavones. The anti-inflammatory structure-activity relationship of flavones was systematically mapped and supported with cross comparisons of that with flavanones, flavanols, and isoflavones. Hydroxyl groups (-OH) are indispensable for the anti-inflammatory function of flavones, and -OH at the C-5 and C-4' positions enhance while -OH at the C-6, C-7, C-8, and C-3' positions attenuate their activity. Moreover, the C2-C3 single bond, -OH at the C-3 and B-ring positions undermine flavone aglycones' activity. Most of the flavone aglycones function through NF-κB, MAPK, and JNK-STAT pathways, and their possible cell binding targets are kinase, aryl hydrocarbon receptor (AhR), G-protein coupled receptors, and estrogen receptors. However, the structure and anti-inflammatory activity relationship of flavones were unclear, and further research shall be conducted to close the gap in order to guide development of evidence-based functional foods.
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Affiliation(s)
- Xiang Wang
- Department of Food Science and Technology, National University of Singapore, 2 Science Drive 2, Singapore, 117542
| | - Yujia Cao
- Department of Food Science and Technology, National University of Singapore, 2 Science Drive 2, Singapore, 117542
| | - Siyu Chen
- Department of Food Science and Technology, National University of Singapore, 2 Science Drive 2, Singapore, 117542
| | - Jiachen Lin
- Department of Food Science and Technology, National University of Singapore, 2 Science Drive 2, Singapore, 117542
| | - Jinsong Bian
- Department of Pharmacology, School of Medicine, Southern University of Science and Technology, Shenzhen 518055, PR China
- National University of Singapore (Suzhou) Research Institute, 377 Linquan Street, Suzhou 215123, PR China
| | - Dejian Huang
- Department of Food Science and Technology, National University of Singapore, 2 Science Drive 2, Singapore, 117542
- National University of Singapore (Suzhou) Research Institute, 377 Linquan Street, Suzhou 215123, PR China
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Estimation of Genome Size in the Endemic Species Reseda pentagyna and the Locally Rare Species Reseda lutea Using comparative Analyses of Flow Cytometry and K-Mer Approaches. PLANTS 2021; 10:plants10071362. [PMID: 34371565 PMCID: PMC8309327 DOI: 10.3390/plants10071362] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 07/01/2021] [Accepted: 07/01/2021] [Indexed: 11/17/2022]
Abstract
Genome size is one of the fundamental cytogenetic features of a species, which is critical for the design and initiation of any genome sequencing projects and can provide essential insights in studying taxonomy, cytogenetics, phylogenesis, and evolutionary studies. However, this key cytogenetic information is almost lacking in the endemic species Reseda pentagyna and the locally rare species Reseda lutea in Saudi Arabia. Therefore, genome size was analyzed by propidium iodide PI flow cytometry and compared to k-mer analysis methods. The standard method for genome size measures (flow cytometry) estimated the genome size of R. lutea and R. pentagyna with nuclei isolation MB01 buffer were found to be 1.91 ± 0.02 and 2.09 ± 0.03 pg/2 °C, respectively, which corresponded approximately to a haploid genome size of 934 and 1.022 Mbp, respectively. For validation, K-mer analysis was performed on both species' Illumina paired-end sequencing data from both species. Five k-mer analysis approaches were examined for biocomputational estimation of genome size: A general formula and four well-known programs (CovEST, Kmergenie, FindGSE, and GenomeScope). The parameter preferences had a significant impact on GenomeScope and Kmergenie estimates. While the general formula estimations did not differ considerably, with an average genome size of 867.7 and 896. Mbp. The differences across flow cytometry and biocomputational predictions may be due to the high repeat content, particularly long repetitive regions in both genomes, 71% and 57%, which interfered with k-mer analysis. GenomeScope allowed quantification of high heterozygosity levels (1.04 and 1.37%) of R. lutea and R. pentagyna genomes, respectively. Based on our observations, R. lutea may have a tetraploid genome or higher. Our results revealed fundamental cytogenetic information for R. lutea and R. pentagyna, which should be used in future taxonomic studies and whole-genome sequencing.
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Gendrisch F, Esser PR, Schempp CM, Wölfle U. Luteolin as a modulator of skin aging and inflammation. Biofactors 2021; 47:170-180. [PMID: 33368702 DOI: 10.1002/biof.1699] [Citation(s) in RCA: 138] [Impact Index Per Article: 46.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 12/02/2020] [Indexed: 12/13/2022]
Abstract
Luteolin belongs to the group of flavonoids and can be found in flowers, herbs, vegetables and spices. It plays an important role in defending plants, for example against UV radiation by partially absorbing UVA and UVB radiation. Thus, luteolin can also decrease adverse photobiological effects in the skin by acting as a first line of defense. Furthermore, anti-oxidative and anti-inflammatory activities of luteolin were described on keratinocytes and fibroblasts as well as on several immune cells (e.g., macrophages, mast cell, neutrophils, dendritic cells and T cells). Luteolin can suppress proinflammatory mediators (e.g., IL-1β, IL-6, IL-8, IL-17, IL-22, TNF-α and COX-2) and regulate various signaling pathway (e.g., the NF-κB, JAK-STAT as well as TLR signaling pathway). In this way, luteolin modulates many inflammatory processes of the skin. The present review summarizes the recent in vitro and in vivo research on luteolin in the field of skin aging and skin cancer, wound healing as well as inflammatory skin diseases, including psoriasis, contact dermatitis and atopic dermatitis. In conclusion, luteolin might be a promising molecule for the development of topic formulations and systemic agents against inflammatory skin diseases.
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Affiliation(s)
- Fabian Gendrisch
- Research Center Skinitial, Department of Dermatology, Medical Center, University of Freiburg, Freiburg, Germany
| | - Philipp R Esser
- Allergy Research Group, Department of Dermatology, Medical Center, University of Freiburg, Freiburg, Germany
| | - Christoph M Schempp
- Research Center Skinitial, Department of Dermatology, Medical Center, University of Freiburg, Freiburg, Germany
| | - Ute Wölfle
- Research Center Skinitial, Department of Dermatology, Medical Center, University of Freiburg, Freiburg, Germany
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A network pharmacology strategy to investigate the anti-inflammatory mechanism of luteolin combined with in vitro transcriptomics and proteomics. Int Immunopharmacol 2020; 86:106727. [DOI: 10.1016/j.intimp.2020.106727] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 06/05/2020] [Accepted: 06/17/2020] [Indexed: 12/16/2022]
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New Herbal Biomedicines for the Topical Treatment of Dermatological Disorders. Biomedicines 2020; 8:biomedicines8020027. [PMID: 32046246 PMCID: PMC7168306 DOI: 10.3390/biomedicines8020027] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 02/03/2020] [Accepted: 02/06/2020] [Indexed: 11/17/2022] Open
Abstract
Herbal extracts and isolated plant compounds play an increasing role in the treatment of skin disorders and wounds. Several new herbal drugs, medicinal products and cosmetic products for the treatment of various skin conditions have been developed in recent years. In this nonsystematic review, we focus on herbal drugs that were tested in controlled clinical studies or in scientifically sound preclinical studies. The herbal biomedicines are intended to treat atopic dermatitis (St. John's wort, licorice, tormentil, bitter substances, evening primrose), psoriasis (araroba tree, lace flower, barberry bark, indigo, turmeric, olibanum, St. John's wort), actinic keratosis (birch bark, petty spurge), herpes simplex (lemon balm, sage and rhubarb), rosacea (green tea, licorice, tormentil) and acne vulgaris (tea tree oil, green tea, hop), or to improve photo protection (green tea, Dyer's weed, cocoa tree, carotinoids, licorice), aesthetic dermatology (licorice, pine bark, gotu kola) and wound healing (birch bark, onion).
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12
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Hosseinzade A, Sadeghi O, Naghdipour Biregani A, Soukhtehzari S, Brandt GS, Esmaillzadeh A. Immunomodulatory Effects of Flavonoids: Possible Induction of T CD4+ Regulatory Cells Through Suppression of mTOR Pathway Signaling Activity. Front Immunol 2019; 10:51. [PMID: 30766532 PMCID: PMC6366148 DOI: 10.3389/fimmu.2019.00051] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 01/09/2019] [Indexed: 12/12/2022] Open
Abstract
The increasing rate of autoimmune disorders and cancer in recent years has been a controversial issue in all aspects of prevention, diagnosis, prognosis and treatment. Among dietary factors, flavonoids have specific immunomodulatory effects that might be of importance to several cancers. Over different types of immune cells, T lymphocytes play a critical role in protecting the immune system as well as in the pathogenesis of specific autoimmune diseases. One of the important mediators of metabolism and immune system is mTOR, especially in T lymphocytes. In the current review, we assessed the effects of flavonoids on the immune system and then their impact on the mTOR pathway. Flavonoids can suppress mTOR activity and are consequently able to induce the T regulatory subset.
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Affiliation(s)
- Aysooda Hosseinzade
- Department of Immunology, Faculty of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Omid Sadeghi
- Students' Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Akram Naghdipour Biregani
- Department of Nutrition, School of Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Sepideh Soukhtehzari
- Department of Pharmaceutical Science, University of British Columbia, Vancouver, BC, Canada
| | - Gabriel S Brandt
- Department of Chemistry, Franklin & Marshall College,, Lancaster, PA, United States
| | - Ahmad Esmaillzadeh
- Students' Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran.,Obesity and Eating Habits Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.,Department of Community Nutrition, Food Security Research Center, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
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Hoffmann J, Wölfle U, Schempp CM, Casetti F. Tannins from Potentilla officinalis display antiinflammatory effects in the UV erythema test and on atopic skin. J Dtsch Dermatol Ges 2018; 14:917-22. [PMID: 27607036 DOI: 10.1111/ddg.12792] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Rich in tannins, the rhizome of Potentilla officinalis (PO) has traditionally been used in the topical treatment of inflammatory disorders of the skin and mucous membranes. The objective of the present study was to examine the antiinflammatory effects of PO in the UV erythema test as well as in patients with atopic skin. PATIENTS AND METHODS Using the UV erythema test, the antiinflammatory effects of a PO extract (2 %) - compared to 1 % hydrocortisone acetate - were assessed in a randomized, prospective, placebo-controlled double-blind study of 40 healthy volunteers. In the context of a prospective non-controlled trial, the efficacy and tolerability of 2 % PO cream (applied to defined test areas twice daily for two weeks) was evaluated in twelve adults and twelve children with atopic skin using a partial SCORAD. In addition, the effects on the degree of erythema in the test areas was measured photometrically. RESULTS In the UV erythema test, PO cream significantly reduced the erythema index compared to the vehicle. The antiinflammatory effects of PO cream were comparable to those of 1 % hydrocortisone acetate cream. The clinical study with atopic patients revealed a significant reduction in the partial SCORAD as well as erythema in the test areas. No adverse events were recorded. CONCLUSIONS PO cream displays antiinflammatory effects in vivo. It is effective in and well tolerated by patients with atopic skin.
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Affiliation(s)
- Julia Hoffmann
- Research Center skinitial, Department of Dermatology, University Medical Center Freiburg, Germany
| | - Ute Wölfle
- Research Center skinitial, Department of Dermatology, University Medical Center Freiburg, Germany
| | - Christoph M Schempp
- Research Center skinitial, Department of Dermatology, University Medical Center Freiburg, Germany.
| | - Federica Casetti
- Research Center skinitial, Department of Dermatology, University Medical Center Freiburg, Germany
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14
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Whitening Agents from Reseda luteola L. and Their Chemical Characterization Using Combination of CPC, UPLC-HRMS and NMR. COSMETICS 2017. [DOI: 10.3390/cosmetics4040051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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15
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Hoffmann J, Wölfle U, Schempp CM, Casetti F. Gerbstoffe aus Potentilla officinalis
wirken entzündungshemmend im UV-Erythem-Test und bei Anwendung auf atopischer Haut. J Dtsch Dermatol Ges 2016; 14:917-23. [DOI: 10.1111/ddg.12792_g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Julia Hoffmann
- Forschungszentrum skinitial; Klinik für Dermatologie; Universitätsklinikum Freiburg
| | - Ute Wölfle
- Forschungszentrum skinitial; Klinik für Dermatologie; Universitätsklinikum Freiburg
| | - Christoph M. Schempp
- Forschungszentrum skinitial; Klinik für Dermatologie; Universitätsklinikum Freiburg
| | - Federica Casetti
- Forschungszentrum skinitial; Klinik für Dermatologie; Universitätsklinikum Freiburg
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16
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Tuong W, Kuo S, Sivamani RK. Photoprotective effect of botanicals and vitamins: A systematic review of clinical trials. J DERMATOL TREAT 2015; 26:558-70. [PMID: 25865615 DOI: 10.3109/09546634.2015.1027647] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Overexposure to solar radiation is a major contributor to skin cancer development and premature skin aging. Botanical extracts and vitamins may represent novel photoprotective agents. OBJECTIVE We sought to systemically review clinical evidence for the use of botanically derived agents and vitamins as photoprotective agents. METHODS We systematically searched Embase and PubMed databases. Two independent reviewers reviewed abstracts for inclusion. Additional relevant studies were identified by a manual review of reference lists. Data from eligible studies were extracted independently and discrepancies were resolved by consensus. RESULTS A total of 51 studies met inclusion criteria. Limited available evidence indicates that several botanical agents and vitamins in topical or oral forms may have promising photoprotective effects. However, generalizability of results is limited by small sample sizes. CONCLUSION AND RELEVANCE Botanical extracts and vitamins may add to the armamentarium of sun-protective agents. Additional high-quality trials are needed to strengthen support for their use.
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Affiliation(s)
- William Tuong
- a Department of Dermatology , University of California Davis , Sacramento , CA , USA
| | - Sandy Kuo
- a Department of Dermatology , University of California Davis , Sacramento , CA , USA
| | - Raja K Sivamani
- a Department of Dermatology , University of California Davis , Sacramento , CA , USA
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17
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Kim SS, Seo JY, Lim SS, Suh HJ, Kim L, Kim JS. Neuroprotective effect of Reseda luteola L. extract in a mouse neuronal cell model. Food Sci Biotechnol 2015. [DOI: 10.1007/s10068-015-0044-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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18
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Liu Z, Liu Y, Pu Z, Wang J, Zheng Y, Li Y, Wei Y. Regulation, evolution, and functionality of flavonoids in cereal crops. Biotechnol Lett 2013; 35:1765-80. [PMID: 23881316 DOI: 10.1007/s10529-013-1277-4] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Accepted: 06/21/2013] [Indexed: 01/02/2023]
Abstract
Flavonoids are plant secondary metabolites that contribute to the adaptation of plants to environmental stresses, including resistance to abiotic and biotic stress. Flavonoids are also beneficial for human health and depress the progression of some chronic diseases. The biosynthesis of flavonoids, which belong to a large family of phenolic compounds, is a complex metabolic process with many pathways that produce different metabolites, controlled by key enzymes. There is limited knowledge about the composition, biosynthesis and regulation of flavonoids in cereals. Improved understanding of the accumulation of flavonoids in cereal grains would help to improve human nutrition through these staple foods. The biosynthesis of flavonoids, scope for altering the flavonoid composition in cereal crops and benefits for human nutrition are reviewed here.
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Affiliation(s)
- Zehou Liu
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu-Wenjiang, 611130, Sichuan, China,
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19
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Machado NFL, Batista de Carvalho LAE, Otero JC, Marques MPM. A conformational study of hydroxyflavones by vibrational spectroscopy coupled to DFT calculations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 109:116-24. [PMID: 23501725 DOI: 10.1016/j.saa.2013.01.038] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2012] [Revised: 01/09/2013] [Accepted: 01/11/2013] [Indexed: 05/16/2023]
Abstract
The conformational preferences of a series of hydroxyflavones were studied by Raman and FTIR spectroscopies, coupled to Density Functional Theory calculations. Special attention was paid to the effect of hydroxyl substitution, due to its importance on the biological activity of these compounds. Their conformational preferences were found to be determined mainly by the orientation of the hydroxylic groups at C(7) and within the catechol moiety, leading to the occurrence of distinct conformers in the solid state. A complete assignment of the experimental spectra was carried out for these molecules, in the light of their most stable conformers and the corresponding predicted vibrational pattern.
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Affiliation(s)
- N F L Machado
- Research Unit Molecular Physical-Chemistry, University of Coimbra, Rua Larga 3005-535, Coimbra, Portugal
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20
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Contact sensitizers induce skin inflammation via ROS production and hyaluronic acid degradation. PLoS One 2012. [PMID: 22848468 DOI: 10.1371/journal.pone.0041340]] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Allergic contact dermatitis (ACD) represents a severe health problem with increasing worldwide prevalence. It is a T cell-mediated skin disease induced by protein-reactive organic and inorganic chemicals. A key feature of contact allergens is their ability to trigger an innate immune response that leads to skin inflammation. Previous evidence from the mouse contact hypersensitivity (CHS) model suggests a role for endogenous activators of innate immune signaling. Here, we analyzed the role of contact sensitizer induced ROS production and concomitant changes in hyaluronic acid metabolism on CHS responses. METHODOLOGY/PRINCIPAL FINDINGS We analyzed in vitro and in vivo ROS production using fluorescent ROS detection reagents. HA fragmentation was determined by gel electrophoresis. The influence of blocking ROS production and HA degradation by antioxidants, hyaluronidase-inhibitor or p38 MAPK inhibitor was analyzed in the murine CHS model. Here, we demonstrate that organic contact sensitizers induce production of reactive oxygen species (ROS) and a concomitant breakdown of the extracellular matrix (ECM) component hyaluronic acid (HA) to pro-inflammatory low molecular weight fragments in the skin. Importantly, inhibition of either ROS-mediated or enzymatic HA breakdown prevents sensitization as well as elicitation of CHS. CONCLUSIONS/SIGNIFICANCE These data identify an indirect mechanism of contact sensitizer induced innate inflammatory signaling involving the breakdown of the ECM and generation of endogenous danger signals. Our findings suggest a beneficial role for anti-oxidants and hyaluronidase inhibitors in prevention and treatment of ACD.
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21
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In vivo photoprotective and anti-inflammatory effect of hyperforin is associated with high antioxidant activity in vitro and ex vivo. Eur J Pharm Biopharm 2012; 81:346-50. [PMID: 22430217 DOI: 10.1016/j.ejpb.2012.03.002] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2011] [Revised: 02/08/2012] [Accepted: 03/02/2012] [Indexed: 01/28/2023]
Abstract
Hyperforin, a major constituent of St. John's Wort (Hypericum perforatum, HP), provides anti-inflammatory, anti-tumor, and anti-bacterial properties. Previous studies have shown anti-oxidative properties of St. John's Wort extracts; however, its free radical scavenging activity in skin cells or skin has not been assessed in detail so far. Therefore, the free radical scavenging activity of hyperforin was tested in the H(2)DCFDA-assay in vitro in HaCaT keratinocytes irradiated with solar simulated radiation. Hyperforin (EC(50) 0.7 μM corresponding to 0.42 μg/ml) was much more effective compared to Trolox (EC(50) 12 μg/ml) and N-acetylcysteine (EC(50) 847 μg/ml) without showing phototoxicity. The radical protection factor of a cream containing 1.5%w/w of a hyperforin-rich HP extract was determined to be 200 × 10(14) radicals/mg, indicating a high radical scavenging activity. The cream was further applied ex vivo on porcine ear skin and significantly reduced radical formation after infrared irradiation. Finally, the UV-protective effect of the HP cream was tested on 20 volunteers in a randomized, double-blind, vehicle-controlled study. HP cream significantly reduced UVB-induced erythema as opposed to the vehicle. Occlusive application of HP cream on non-irradiated test sites did not cause any skin irritation. Taken together, these results demonstrate that hyperforin is a powerful free radical scavenger.
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22
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Flavonoids as Anti-Inflammatory and Analgesic Drugs: Mechanisms of Action and Perspectives in the Development of Pharmaceutical Forms. BIOACTIVE NATURAL PRODUCTS 2012. [DOI: 10.1016/b978-0-444-53836-9.00026-8] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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23
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Esser PR, Wölfle U, Dürr C, von Loewenich FD, Schempp CM, Freudenberg MA, Jakob T, Martin SF. Contact sensitizers induce skin inflammation via ROS production and hyaluronic acid degradation. PLoS One 2012; 7:e41340. [PMID: 22848468 PMCID: PMC3405137 DOI: 10.1371/journal.pone.0041340] [Citation(s) in RCA: 129] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2012] [Accepted: 06/20/2012] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Allergic contact dermatitis (ACD) represents a severe health problem with increasing worldwide prevalence. It is a T cell-mediated skin disease induced by protein-reactive organic and inorganic chemicals. A key feature of contact allergens is their ability to trigger an innate immune response that leads to skin inflammation. Previous evidence from the mouse contact hypersensitivity (CHS) model suggests a role for endogenous activators of innate immune signaling. Here, we analyzed the role of contact sensitizer induced ROS production and concomitant changes in hyaluronic acid metabolism on CHS responses. METHODOLOGY/PRINCIPAL FINDINGS We analyzed in vitro and in vivo ROS production using fluorescent ROS detection reagents. HA fragmentation was determined by gel electrophoresis. The influence of blocking ROS production and HA degradation by antioxidants, hyaluronidase-inhibitor or p38 MAPK inhibitor was analyzed in the murine CHS model. Here, we demonstrate that organic contact sensitizers induce production of reactive oxygen species (ROS) and a concomitant breakdown of the extracellular matrix (ECM) component hyaluronic acid (HA) to pro-inflammatory low molecular weight fragments in the skin. Importantly, inhibition of either ROS-mediated or enzymatic HA breakdown prevents sensitization as well as elicitation of CHS. CONCLUSIONS/SIGNIFICANCE These data identify an indirect mechanism of contact sensitizer induced innate inflammatory signaling involving the breakdown of the ECM and generation of endogenous danger signals. Our findings suggest a beneficial role for anti-oxidants and hyaluronidase inhibitors in prevention and treatment of ACD.
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Affiliation(s)
- Philipp R. Esser
- Allergy Research Group, Medical Center, University Freiburg, Freiburg, Germany
- * E-mail: (PRE); (SFM)
| | - Ute Wölfle
- Department of Dermatology, Competence Center Skintegral, Medical Center, University Freiburg, Freiburg, Germany
| | - Christoph Dürr
- Department of Haematology and Oncology, Medical Center, University Freiburg, Freiburg, Germany
| | | | - Christoph M. Schempp
- Department of Dermatology, Competence Center Skintegral, Medical Center, University Freiburg, Freiburg, Germany
| | | | - Thilo Jakob
- Allergy Research Group, Medical Center, University Freiburg, Freiburg, Germany
| | - Stefan F. Martin
- Allergy Research Group, Medical Center, University Freiburg, Freiburg, Germany
- * E-mail: (PRE); (SFM)
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24
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Wölfle U, Esser PR, Simon-Haarhaus B, Martin SF, Lademann J, Schempp CM. UVB-induced DNA damage, generation of reactive oxygen species, and inflammation are effectively attenuated by the flavonoid luteolin in vitro and in vivo. Free Radic Biol Med 2011; 50:1081-93. [PMID: 21281711 DOI: 10.1016/j.freeradbiomed.2011.01.027] [Citation(s) in RCA: 106] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2010] [Revised: 01/17/2011] [Accepted: 01/21/2011] [Indexed: 12/15/2022]
Abstract
Ultraviolet (UV) radiation induces DNA damage, oxidative stress, and inflammatory processes in human keratinocytes resulting in skin inflammation, photoaging, and photocarcinogenesis. The flavonoid luteolin is one of the most potent antioxidative plant polyphenols. We investigated the UV protective and antioxidant properties of luteolin in human keratinocytes in vitro, ex vivo, and in vivo. Spectrophotometric measurements revealed extinction maxima of luteolin in the UVB and UVA range. UV transmission below 370 nm was <10%. In human skin, luteolin effectively reduced the formation of UVB-induced cyclobutane pyrimidine dimers. The free radical scavenging activity of luteolin was assessed in various cell-free and cell-based assays. In the cell-free DPPH assay the half-maximal effective concentration (EC₅₀) of luteolin (12 μg/ml) was comparable to those of Trolox (25 μg/ml) and N-acetylcysteine (32 μg/ml). In contrast, in the H₂DCFDA assay performed with UVB-irradiated keratinocytes, luteolin (EC₅₀ 3 μg/ml) was much more effective compared to Trolox (EC₅₀ 12 μg/ml) and N-acetylcysteine (EC₅₀ 847 μg/ml). Luteolin also inhibited both UVB-induced skin erythema and the upregulation of cyclooxygenase-2 and prostaglandin E₂ production in human skin via interference with the MAPK pathway. These data suggest that luteolin may protect human skin from UVB-induced damage by a combination of UV-absorbing, DNA-protective, antioxidant, and anti-inflammatory properties.
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Affiliation(s)
- Ute Wölfle
- Competence Center skintegral, Department of Dermatology, University Medical Center Freiburg, D-79102 Freiburg, Germany.
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25
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Reuter J, Wölfle U, Korting HC, Schempp C. Which plant for which skin disease? Part 2: Dermatophytes, chronic venous insufficiency, photoprotection, actinic keratoses, vitiligo, hair loss, cosmetic indications. J Dtsch Dermatol Ges 2011; 8:866-73. [PMID: 20707877 DOI: 10.1111/j.1610-0387.2010.07472.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This paper continues our review of scientifically evaluated plant extracts in dermatology. After plants effective against dermatophytes, botanicals with anti-edema effects in chronic venous insufficiency are discussed. There is good evidence from randomized clinical studies that plant extracts from grape vine leaves (Vitis vinifera), horse chestnut (Aesculus hippocastanum), sea pine (Pinus maritima) and butcher's broom (Ruscus aculeatus) can reduce edema in chronic venous insufficiency. Plant extracts from witch hazel (Hamamelis virginiana), green tea (Camellia sinensis), the fern Polypodium leucotomos and others contain antioxidant polyphenolic compounds that may protect the skin from sunburn and photoaging when administered topically or systemically. Extracts from the garden spurge (Euphorbia peplus) and from birch bark (Betula alba) have been shown to be effective in the treatment of actinic keratoses in phase II studies. Some plant extracts have also been investigated in the treatment of vitiligo, various forms of hair loss and pigmentation disorders, and in aesthetic dermatology.
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Affiliation(s)
- Juliane Reuter
- Competence Center skintegral®, Department of Dermatology, University of Freiburg, Germany
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26
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Dias MM, Machado NFL, Marques MPM. Dietary chromones as antioxidant agents—the structural variable. Food Funct 2011; 2:595-602. [DOI: 10.1039/c1fo10098j] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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27
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Verschooten L, Smaers K, Van Kelst S, Proby C, Maes D, Declercq L, Agostinis P, Garmyn M. The Flavonoid Luteolin Increases the Resistance of Normal, but Not Malignant Keratinocytes, Against UVB-Induced Apoptosis. J Invest Dermatol 2010; 130:2277-85. [DOI: 10.1038/jid.2010.124] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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28
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Acanthopanax koreanum fruit waste inhibits lipopolysaccharide-induced production of nitric oxide and prostaglandin E2 in RAW 264.7 macrophages. J Biomed Biotechnol 2010; 2010:715739. [PMID: 20368786 PMCID: PMC2846352 DOI: 10.1155/2010/715739] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2009] [Revised: 12/03/2009] [Accepted: 01/08/2010] [Indexed: 12/01/2022] Open
Abstract
The Acanthopanax koreanum fruit is a popular fruit in Jeju Island, but the byproducts of the alcoholic beverage prepared using this fruit are major agricultural wastes. The fermentability of this waste causes many economic and environmental problems. Therefore, we investigated the suitability of using A. koreanum fruit waste (AFW) as a source of antiinflammatory agents. AFWs were extracted with 80% EtOH. The ethanolic extract was then successively partitioned with hexane, CH2Cl2, EtOAc, BuOH, and water. The results indicate that the CH2Cl2 fraction (100 μg/mL) of AFW inhibited the LPS-induced nitric oxide (NO) and prostaglandin E2 (PGE2) production in RAW 264.7 cells by 79.6% and 39.7%, respectively. These inhibitory effects of the CH2Cl2 fraction of AFWs were accompanied by decreases in the expression of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) proteins and iNOS and COX-2 mRNA in a dose-dependent pattern. The CH2Cl2 fraction of AFWs also prevented degradation of IκB-α in a dose-dependent manner. Ursolic acid was identified as major compound present in AFW, and CH2Cl2 extracts by high performance liquid chromatography (HPLC). Furthermore using pure ursolic acid as standard and by HPLC, AFW and CH2Cl2 extracts was found to contain 1.58 mg/g and 1.75 mg/g, respectively. Moreover, we tested the potential application of AFW extracts as a cosmetic material by performing human skin primary irritation tests. In these tests, AFW extracts did not induce any adverse reactions. Based on these results, we suggest that AFW extracts be considered possible anti-inflammatory candidates for topical application.
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29
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Woelfle U, Simon-Haarhaus B, Merfort I, Schempp C. Reseda luteola
L. extract displays antiproliferative and pro-apoptotic activities that are related to its major flavonoids. Phytother Res 2009; 24:1033-6. [DOI: 10.1002/ptr.3069] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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