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Calzari P, Vaienti S, Nazzaro G. Uses of Polypodium leucotomos Extract in Oncodermatology. J Clin Med 2023; 12:jcm12020673. [PMID: 36675602 PMCID: PMC9861608 DOI: 10.3390/jcm12020673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 12/18/2022] [Accepted: 01/09/2023] [Indexed: 01/19/2023] Open
Abstract
The effects of UV radiation on the skin and its damage mechanisms are well known. New modalities of exogenous photoprotection have been studied. It was demonstrated that Polypodium leucotomos extract acts as an antioxidant, photoprotectant, antimutagenic, anti-inflammatory, and immunoregulator. It is effective when taken orally and/or applied topically to support the prevention of skin cancers. It also has an important role in preventing photoaging. This review aims to report the mechanisms through which Polypodium leucotomos acts and to analyze its uses in oncodermatology with references to in vitro and in vivo studies. Additionally, alternative uses in non-neoplastic diseases, such as pigmentary disorders, photosensitivity, and atopic dermatitis, have been considered.
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Affiliation(s)
- Paolo Calzari
- Department of Pathophysiology and Transplantation, University of Milan, 20122 Milan, Italy
| | - Silvia Vaienti
- Section of Dermatology and Venereology, Department of Medicine, University of Verona, 30127 Verona, Italy
| | - Gianluca Nazzaro
- Department of Pathophysiology and Transplantation, University of Milan, 20122 Milan, Italy
- Dermatology Unit, Foundation IRCCS, Ca’ Granda Ospedale Maggiore Policlinico, Via Pace 9, 20122 Milan, Italy
- Correspondence:
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Cruz RYMS, Arévalo SV, Rashid A, Jara MRA, Prado MSA. Antioxidant and photoprotective potential of Polypodium leucotomos. EXPLORATION OF MEDICINE 2022. [DOI: 10.37349/emed.2022.00117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
In recent years, Polypodium leucotomos has emerged with a great interest for having medicinal and therapeutic potential. It is producing very promising results due to the presence of antioxidant and photoprotective properties. Electronic libraries and databases, including Scopus, PubMed, Google Scholar, Science Direct, and Web of Science were searched to identify relevant studies; 79 publications contributed to this review regarding Polypodium leucotomos botanical aspects, chemical composition, antioxidant and photoprotective activity. It is used in complementary and alternative therapies with various pharmaceutical dosage forms (systemic or topical). Thanks to the composition of phytochemical constituents present in the leaves and rhizomes which confer antioxidant and photoprotective activity that has clinical therapeutic potential to be used as systemic and topical sunscreen of natural origin for the prevention of different types of skin diseases caused by harmful ultraviolet A and ultraviolet B radiations. However, more studies are needed in the future to test the ability and enhance the capacity of sunscreen and sunblock in cosmetic formulations. To conclude, it is recommended to carry out scientific studies based on different analytical methods to evaluate the phytoconstituents potential and to develop stable pharmaceutical formulations according to the skin phototype.
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Affiliation(s)
- Rosy Yesela Mancilla Santa Cruz
- Department of Pharmacy, School of Pharmaceutical Sciences, University of São Paulo, São Paulo 05508-000, Brazil; Professional School of Pharmacy and Biochemistry, Faculty of Health Sciences, National University of San Cristóbal of Huamanga, Ayacucho 05001, Peru
| | - Sharon Velásquez Arévalo
- Department of Pharmacotechnics, Faculty of Pharmacy and Biochemistry, National University of Trujillo, Trujillo 13011, Peru
| | - Anas Rashid
- Department of Pharmacy, School of Pharmaceutical Sciences, University of São Paulo, São Paulo 05508-000, Brazil; School of Medicine and Surgery, University of Torino, Torino 10125, Italy
| | - Marco Rolando Aronés Jara
- Professional School of Pharmacy and Biochemistry, Faculty of Health Sciences, National University of San Cristóbal of Huamanga, Ayacucho 05001, Peru
| | - María Segunda Aurora Prado
- Department of Pharmacy, School of Pharmaceutical Sciences, University of São Paulo, São Paulo 05508-000, Brazil
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Resende DISP, Jesus A, Sousa Lobo JM, Sousa E, Cruz MT, Cidade H, Almeida IF. Up-to-Date Overview of the Use of Natural Ingredients in Sunscreens. Pharmaceuticals (Basel) 2022; 15:ph15030372. [PMID: 35337168 PMCID: PMC8949675 DOI: 10.3390/ph15030372] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/09/2022] [Accepted: 03/14/2022] [Indexed: 12/04/2022] Open
Abstract
The photoprotective skincare segment is in high demand to meet consumer concerns on UV-induced skin damage, with a recent trend towards sunscreen alternatives with a natural origin. In this study, the use of natural ingredients, either from terrestrial or marine origin, in a panel of 444 sunscreen commercial formulations (2021) was analyzed. Ingredients from terrestrial organisms represent the large majority found in the analyzed sunscreen formulations (48%), whereas marine ingredients are present only in 13% of the analyzed products. A deeper analysis regarding the most prevalent families of ingredients from terrestrial and marine organisms used as top ingredients is also presented, as well as their mechanisms of action. This study provides an up-to-date overview of the sunscreen market regarding the use of natural ingredients, which is of relevance for scientists involved in the development of new sunscreens to identify opportunities for innovation.
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Affiliation(s)
- Diana I. S. P. Resende
- CIIMAR—Centro Interdisciplinar de Investigação Marinha e Ambiental, 4450-208 Matosinhos, Portugal; (D.I.S.P.R.); (H.C.)
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, 4050-313 Porto, Portugal
| | - Ana Jesus
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; (A.J.); (J.M.S.L.)
- UCIBIO—Applied Molecular Biosciences Unit, MedTech, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
| | - José M. Sousa Lobo
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; (A.J.); (J.M.S.L.)
- UCIBIO—Applied Molecular Biosciences Unit, MedTech, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
| | - Emília Sousa
- CIIMAR—Centro Interdisciplinar de Investigação Marinha e Ambiental, 4450-208 Matosinhos, Portugal; (D.I.S.P.R.); (H.C.)
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, 4050-313 Porto, Portugal
- Correspondence: (E.S.); (I.F.A.); Tel.: +351-220-428-689 (E.S.); +351-220-428-621 (I.F.A.)
| | - Maria T. Cruz
- Faculty of Pharmacy, University of Coimbra, 3004-531 Coimbra, Portugal;
- Center for Neuroscience and Cell Biology, 3004-504 Coimbra, Portugal
| | - Honorina Cidade
- CIIMAR—Centro Interdisciplinar de Investigação Marinha e Ambiental, 4450-208 Matosinhos, Portugal; (D.I.S.P.R.); (H.C.)
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, 4050-313 Porto, Portugal
| | - Isabel F. Almeida
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; (A.J.); (J.M.S.L.)
- UCIBIO—Applied Molecular Biosciences Unit, MedTech, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
- Correspondence: (E.S.); (I.F.A.); Tel.: +351-220-428-689 (E.S.); +351-220-428-621 (I.F.A.)
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4
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Perez M, Abisaad JA, Rojas KD, Marchetti MA, Jaimes N. Skin Cancer: Primary, Secondary, and Tertiary Prevention. Part I. J Am Acad Dermatol 2022; 87:255-268. [DOI: 10.1016/j.jaad.2021.12.066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 12/03/2021] [Accepted: 12/15/2021] [Indexed: 10/19/2022]
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Souza de Carvalho VM, Covre JL, Correia-Silva RD, Lice I, Corrêa MP, Leopoldino AM, Gil CD. Bellis perennis extract mitigates UVA-induced keratinocyte damage: Photoprotective and immunomodulatory effects. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2021; 221:112247. [PMID: 34175580 DOI: 10.1016/j.jphotobiol.2021.112247] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/23/2021] [Accepted: 06/18/2021] [Indexed: 11/26/2022]
Abstract
A need exists for further research elucidating the benefits of environmentally safe photoprotective agents against ultraviolet (UV) exposure, and plant extracts represent a human-friendly alternative formulation. This study was designed to evaluate the potential use of Bellis perennis extract (BPE), from the Asteraceae family, known as the common daisy or the English daisy, in cosmeceuticals as a photoprotective factor, using an in vitro model of UVA-induced keratinocyte damage. Human skin keratinocytes (HaCaT cell line) were incubated with BPE at 0.01, 0.1, or 1% in Dulbecco's Modified Eagle Medium (DMEM), and after 15 min they were submitted to UVA radiation at 5, 10, and 15 J/cm2 doses, respectively. For comparative purposes, Polypodium leucotomos extract (PLE), known as the fern, was used as a positive control in assessing the photoprotective effect. After 24 h of UVA exposure, cell viability (MTT and LDH assays), levels of cleaved caspase-3, cyclooxygenase-2, IL-6, reactive oxygen species (ROS) and antioxidant enzyme (catalase, SOD, and glutathione peroxidase) activity were determined. UVA radiation at 5, 10, and 15 J/cm2 doses reduced cell viability to 63%, 43%, and 23%, respectively; we selected 10 J/cm2 for our purposes. After 24 h of UVA exposure, treatment with 1% BPE and 1% PLE significantly recovered cell viability (p < 0.05). Furthermore, treatment was associated with lower cleaved caspase-3 and ROS levels, higher catalase activity, and lower IL-6 levels in the treated UVA keratinocytes compared with the untreated UVA group (p < 0.01). Our results demonstrate photoprotective and immunomodulatory effects of BPE in skin keratinocytes and support its use as a bioactive agent in cosmetic formulations to prevent skin damage caused by exposure to the UV light.
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Affiliation(s)
- Vivian Maria Souza de Carvalho
- Universidade Federal de São Paulo (UNIFESP), Escola Paulista de Medicina, Departamento de Morfologia e Genética, São Paulo, SP, Brazil
| | - Joyce L Covre
- Universidade Federal de São Paulo (UNIFESP), Escola Paulista de Medicina, Departamento de Morfologia e Genética, São Paulo, SP, Brazil
| | - Rebeca D Correia-Silva
- Universidade Federal de São Paulo (UNIFESP), Escola Paulista de Medicina, Departamento de Morfologia e Genética, São Paulo, SP, Brazil
| | - Izabella Lice
- Universidade Federal de São Paulo (UNIFESP), Escola Paulista de Medicina, Departamento de Morfologia e Genética, São Paulo, SP, Brazil
| | - Mab P Corrêa
- Universidade Estadual Paulista (UNESP), Instituto de Biociências Letras e Ciências Exatas, Programa de Pós-Graduação em Biociências, São José do Rio Preto, SP, Brazil
| | - Andréia M Leopoldino
- Universidade de São Paulo (USP), Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Ribeirão Preto, SP, Brazil
| | - Cristiane D Gil
- Universidade Federal de São Paulo (UNIFESP), Escola Paulista de Medicina, Departamento de Morfologia e Genética, São Paulo, SP, Brazil; Universidade Estadual Paulista (UNESP), Instituto de Biociências Letras e Ciências Exatas, Programa de Pós-Graduação em Biociências, São José do Rio Preto, SP, Brazil.
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Oral Intake of Hydrangea serrata (Thunb.) Ser. Leaves Extract Improves Wrinkles, Hydration, Elasticity, Texture, and Roughness in Human Skin: A Randomized, Double-Blind, Placebo-Controlled Study. Nutrients 2020; 12:nu12061588. [PMID: 32481760 PMCID: PMC7352416 DOI: 10.3390/nu12061588] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 05/22/2020] [Accepted: 05/26/2020] [Indexed: 12/19/2022] Open
Abstract
Previously, we reported that the hot water extract of Hydrangea serrata leaves (WHS) and its active component, hydrangenol, possess in vitro and in vivo effects on skin wrinkles and moisturization. We conducted a randomized, double-blind, placebo-controlled trial to clinically evaluate the effect of WHS on human skin. Participants (n = 151) were randomly assigned to receive either WHS 300 mg, WHS 600 mg, or placebo, once daily for 12 weeks. Skin wrinkle, hydration, elasticity, texture, and roughness parameters were assessed at baseline and after 4, 8, and 12 weeks. Compared to the placebo, skin wrinkles were significantly reduced in both WHS groups after 8 and 12 weeks. In both WHS groups, five parameters (R1-R5) of skin wrinkles significantly improved and skin hydration was significantly enhanced when compared to the placebo group after 12 weeks. Compared with the placebo, three parameters of skin elasticity, including overall elasticity (R2), net elasticity (R5), and ratio of elastic recovery to total deformation (R7), improved after 12 weeks of oral WHS (600 mg) administration. Changes in skin texture and roughness were significantly reduced in both WHS groups. No WHS-related adverse reactions were reported. Hence, WHS could be used as a health supplement for skin anti-aging.
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Sharma A, Kumar A, Li C, Sharma RK, Swihart MT. Microencapsulated UV filter@ZIF-8 based sunscreens for broad spectrum UV protection. RSC Adv 2020; 10:34254-34260. [PMID: 35519040 PMCID: PMC9056713 DOI: 10.1039/d0ra05828a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 09/04/2020] [Indexed: 11/21/2022] Open
Abstract
Encapsulation of organic UV filters in ZIF-8 nanoparticles produces a safer, more stable, and more effective sunscreen.
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Affiliation(s)
- Anu Sharma
- Department of Chemistry
- University of Delhi
- India
- Department of Chemical and Biological Engineering
- University at Buffalo (SUNY)
| | - Abhishek Kumar
- Department of Chemical and Biological Engineering
- University at Buffalo (SUNY)
- USA
| | - Changning Li
- Department of Chemical and Biological Engineering
- University at Buffalo (SUNY)
- USA
| | | | - Mark T. Swihart
- Department of Chemical and Biological Engineering
- University at Buffalo (SUNY)
- USA
- RENEW Institute
- University at Buffalo (SUNY)
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Dini I, Laneri S. Nutricosmetics: A brief overview. Phytother Res 2019; 33:3054-3063. [PMID: 31478301 DOI: 10.1002/ptr.6494] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 08/09/2019] [Accepted: 08/14/2019] [Indexed: 11/08/2022]
Abstract
The nutricosmetics are products and ingredients that act as nutritional supplements to care skin, nails, and hair natural beauty. They work from the inside to promote beauty from within. Nutricosmetic is the latest trend in the beauty industry. This tendency rapidly gained many followers because it fits with the modern culture: Today, consumers are very careful with the food that they introduce into their body, and there is also an increasing demand for natural products able to enhance one's health and beauty without side effects and significant traction before use. However, many nutricosmetic products are considered effective due to the historical use and word of mouth. Comprehensive analysis of the global nutricosmetics market is conducted considering form, end-user applications, and some product components such as collagen, peptides, proteins, vitamins, carotenes, minerals, and omega-3 fatty acid are reported. Plant extract ingredients used in nutricosmetic are also described.
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Affiliation(s)
- Irene Dini
- Department of Pharmacy, University of Naples Federico II, Naples, 80131, Italy
| | - Sonia Laneri
- Department of Pharmacy, University of Naples Federico II, Naples, 80131, Italy
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Nwanodi O. Skin Protective Nutraceuticals: The Current Evidence in Brief. Healthcare (Basel) 2018; 6:healthcare6020040. [PMID: 29734688 PMCID: PMC6023352 DOI: 10.3390/healthcare6020040] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Revised: 04/16/2018] [Accepted: 05/01/2018] [Indexed: 01/02/2023] Open
Abstract
Nutraceuticals are important for healthy skin maintenance. Probiotics, phenolics, and vitamins are just a few of the nutraceuticals meant to potentially prevent and assist medical management of dermatologic conditions. Among these, probiotics, vitamin E, and green tea catechins may offer the broadest array of skin protective mechanisms with probiotics having the greatest clinical range. Probiotics’ amelioration of atopic dermatitis and opportunistic infections of skin burns has been targeted in recent research efforts. This includes the improvement of Scoring Atopic Dermatitis index scores, p = 0.02, with intact Lactobacillus rhamnosus Goldin and Gorbach (LGG) in comparison to heat inactivated LGG or placebo. Lactobacillus reuteri used prior to or concurrently with Staphylococcus aureus infection can increase epidermal keratinocyte survival, p < 0.01. Phenolics may not have been extensively studied for atopic dermatitis or skin burns. However, phenolics do have a role in photoprotection. The phenolic rutin increases ultraviolet B radiation filter reactive oxygen species scavenging at 75%, p < 0.002, and peak wavelength absorption, p < 0.001. While oral and topical probiotics have untapped potential for atopic dermatitis amelioration and skin infection prevention, phenolics will be increasingly used for photoprotection. With optimized bioavailability, dosage, and formulation, nutraceuticals will become crucial for healthy skin maintenance.
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Affiliation(s)
- Oroma Nwanodi
- Obstetrics and Gynecology Locum Tenens, Salinas, CA 93902, USA.
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Parrado C, Mascaraque M, Gilaberte Y, Juarranz A, Gonzalez S. Fernblock (Polypodium leucotomos Extract): Molecular Mechanisms and Pleiotropic Effects in Light-Related Skin Conditions, Photoaging and Skin Cancers, a Review. Int J Mol Sci 2016; 17:ijms17071026. [PMID: 27367679 PMCID: PMC4964402 DOI: 10.3390/ijms17071026] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2016] [Revised: 06/02/2016] [Accepted: 06/20/2016] [Indexed: 12/20/2022] Open
Abstract
Healthier life styles include increased outdoors time practicing sports and walking. This means increased exposure to the sun, leading to higher risk of sunburn, photoaging and skin cancer. In addition to topical barrier products, oral supplementations of various botanicals endowed with antioxidant activity are emerging as novel method of photoprotection. Polypodium leucotomos extract (PL, commercial name Fernblock®, IFC Group, Spain) is a powerful antioxidant due to its high content of phenolic compounds. PL is administered orally, with proven safety, and it can also be used topically. Its mechanisms include inhibition of the generation and release of reactive oxygen species (ROS) by ultraviolet (UV) light. It also prevents UV- and ROS-induced DNA damage with inhibition of AP1 and NF-κB and protection of natural antioxidant enzyme systems. At the cellular level, PL decreases cellular apoptosis and necrosis mediated UV and inhibits abnormal extracellular matrix remodeling. PL reduces inflammation, prevents immunosuppression, activates tumor suppressor p53 and inhibits UV-induced cyclooxygenase-2 (COX-2) enzyme expression. In agreement with increased p53 activity, PL decreased UV radiation-induced cell proliferation. PL also prevents common deletions mitochondrial DNA damage induced by UVA, and MMP-1 expression induced Visible Light and Infrared Radiation. These cellular and molecular effects are reflected in inhibitions of carcinogenesis and photoaging.
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Affiliation(s)
- Concepcion Parrado
- Pathology Department, School of Medicine, Universidad de Málaga, Malaga 29071, Spain.
| | - Marta Mascaraque
- Biology Department, Sciences School, Universidad Autónoma de Madrid, Madrid 28049, Spain.
| | | | - Angeles Juarranz
- Biology Department, Sciences School, Universidad Autónoma de Madrid, Madrid 28049, Spain.
| | - Salvador Gonzalez
- Dermatology Service, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA.
- Medicine Department, Alcalá University, Madrid 28805, Spain.
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Cohen BE, Elbuluk N, Mu EW, Orlow SJ. Alternative Systemic Treatments for Vitiligo: A Review. Am J Clin Dermatol 2015; 16:463-74. [PMID: 26329814 DOI: 10.1007/s40257-015-0153-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Vitiligo is a common, acquired disorder of skin pigmentation that can significantly impact quality of life. It often represents a therapeutic challenge, which has resulted in interest in alternative treatments such as herbal and vitamin supplements. In this review, we provide an overview of the most commonly studied complementary agents, describe proposed mechanisms of action, identify potential adverse effects, and discuss the primary evidence supporting their use. Our discussion focuses on L-phenylalanine, Polypodium leucotomos, khellin, Ginkgo biloba, and vitamins and minerals, including vitamins B12, C, and E, folic acid, and zinc used as monotherapy or in combination with other treatments for the management of vitiligo.
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Affiliation(s)
- Brandon E Cohen
- The Ronald O. Perelman Department of Dermatology, New York University School of Medicine, 240 East 38th Street, New York, NY, 10016, USA
| | - Nada Elbuluk
- The Ronald O. Perelman Department of Dermatology, New York University School of Medicine, 240 East 38th Street, New York, NY, 10016, USA
| | - Euphemia W Mu
- The Ronald O. Perelman Department of Dermatology, New York University School of Medicine, 240 East 38th Street, New York, NY, 10016, USA
| | - Seth J Orlow
- The Ronald O. Perelman Department of Dermatology, New York University School of Medicine, 240 East 38th Street, New York, NY, 10016, USA.
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12
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Murbach TS, Béres E, Vértesi A, Glávits R, Hirka G, Endres JR, Clewell AE, Szakonyiné IP. A comprehensive toxicological safety assessment of an aqueous extract of Polypodium leucotomos (Fernblock(®)). Food Chem Toxicol 2015; 86:328-41. [PMID: 26585922 DOI: 10.1016/j.fct.2015.11.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Revised: 11/02/2015] [Accepted: 11/05/2015] [Indexed: 12/01/2022]
Abstract
A battery of toxicological studies was conducted in accordance with internationally accepted standards to investigate the genotoxicity and repeated-dose oral toxicity of Fernblock(®), a commercial aqueous extraction of the leaves of the tropical fern Polypodium leucotomos used for its oral and topical photoprotective properties. No evidence of mutagenicity was observed in a bacterial reverse mutation test or in vitro mammalian chromosomal aberration test nor was any genotoxic activity observed in an in vivo mouse micronucleus test. Two repeated-dose oral toxicity studies were conducted in male and female Wistar rats. In the first study, no mortality or toxic effects were observed and no target organs were identified at doses administered for 14 days by gavage up to the maximum dose of 5000 mg/kg bw/day. Based on these results, a 90-day study was conducted at 0, 300, 600, and 1200 mg/kg bw/day. No mortality or treatment-related adverse effects were observed and no target organs were identified. The NOAEL from the 90-day study was determined to be 1200 mg/kg bw/day, the highest dose tested.
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Affiliation(s)
- Timothy S Murbach
- AIBMR Life Sciences, Inc., 4117 South Meridian, Puyallup, WA 98373, USA.
| | - Erzsébet Béres
- Toxi-Coop Zrt., Deres u. 10/A, H-1124 Budapest, Hungary.
| | - Adél Vértesi
- Toxi-Coop Zrt., Deres u. 10/A, H-1124 Budapest, Hungary.
| | - Róbert Glávits
- Toxi-Coop Zrt., Deres u. 10/A, H-1124 Budapest, Hungary.
| | - Gábor Hirka
- Toxi-Coop Zrt., Deres u. 10/A, H-1124 Budapest, Hungary.
| | - John R Endres
- AIBMR Life Sciences, Inc., 4117 South Meridian, Puyallup, WA 98373, USA.
| | - Amy E Clewell
- AIBMR Life Sciences, Inc., 4117 South Meridian, Puyallup, WA 98373, USA.
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